JP5249860B2 - Heat dissipation fan - Google Patents

Description

  The present invention relates to a heat dissipating fan, and more particularly to a heat dissipating fan that further facilitates assembly work of a power connection line.

  As a structure of a conventional heat radiating fan, usually, by having a power supply connection line, it can be provided for the operation of the heat radiating fan by circumscribing the power source. In general, the fixed position of the power connection line must be properly processed and arranged. As a result, it is possible to maintain normal operation of the heat dissipation fan by effectively avoiding the power supply connection line from loosening and dropping off or being caught in the heat dissipation fan in the actual operation process. In addition, for various types of heat dissipating fans that are often seen in the market today, the power supply connection lines generally have to use a considerably complicated winding fixing method, which is very inconvenient in assembly work.

  For example, in the new model number 502821 of the Republic of China “Fan Line Arrangement Structure” (Patent Document 1), referring to FIG. 11, the conventional heat dissipation fan 70 includes a line arrangement structure 71, and the line arrangement structure 71 includes A bottom portion 711, two side support portions 712 and 712, and two stop plate portions 713 and 713 are included. Accordingly, there is one in which the wire arrangement structure (power supply connection line) 72 can be installed between the bottom portion 711, the side surface support portion 712, and the stop plate portion 713 by the wire arrangement structure 71 in a detour manner.

  Further, as a structure of a conventional heat radiating fan, for example, in the public notice No. 449682 “Structure of an ultra-thin cooling fan” (Patent Document 2), as shown in FIGS. A housing 81, a stator seat 82, a fan wheel 83, and a cover plate 84 are included. The housing 81 is formed with a storage chamber 811 and a groove 812 communicating with the storage chamber 811. The stator seat 82 is provided in the storage chamber 811, and the stator seat 82 is provided with an electrical connection port 821, and the electrical connection port 821 is formed so as to be connected to the power supply connection line 822. The fan wheel 83 is rotatably coupled to the stator seat 82, and a permanent magnet 831 is formed on the fan wheel 83. The cover plate 84 is provided with a convex plate 841, and when the cover plate 84 is coupled to the casing 81, the convex plate 841 is formed to extend into the groove 812 so as to correspond. As a result, when the power connection line 822 is assembled, one end of the power connection line 822 can be wound up to the position of the groove 812 and penetrates to the outside of the housing 81 via the groove 812. Since it can be extended, it is convenient to circumscribe the power supply, and then there is one in which the power supply connection line 822 is pressed and fixed using the convex plate 841.

  Furthermore, as a structure of a conventional heat radiating fan, for example, in the new public notice number 443435 of the Republic of China “Structural improvement of a wire locking member of a blower fan” (Patent Document 3), as shown in FIG. A fan base 91 is formed on the base plate, and a conductor groove 911 is provided at a corner adjacent to the side wall between the fan bases 91, and the conductor groove 911 is used to assemble the filler 92. Thereby, the electric wire (that is, the power connection line) 93 formed in the heat radiating fan 90 is wound up to the position of the conductor groove 911, and then penetrates and extends to the outside of the fan base 91 via the conductor groove 911. Therefore, it is convenient to circumscribe the power source, and then there is one in which the electric wire 93 is pressed and fixed using the filling body 92.

Republic of China new announcement number 502821 Republic of China No. 449682 Republic of China new announcement number 443435

  The conventional heat dissipating fan 70 presented in the above-mentioned new public notice number 502821 of the Republic of China generally has the following problems. In the conventional heat radiating fan 70, the wire arrangement structure 71 can provide a good fixing effect to the wire 72. However, when actually trying to fix the wire 72, one end of the wire 72 is still used first as the heat radiating fan 70. The wire rod 72 must be locked between the bottom portion 711, the side surface support portion 712 and the stop plate portion 713 in order through a detour winding method. As described above, there is a problem that the difficulty of assembling the wire 72 increases. In addition, according to the conventional heat radiating fan 70, since the structure for fixing the wire 72 is considerably complicated, there is a problem that the entire manufacturing cost is relatively high.

  In addition, the conventional heat dissipating fan 80 presented in the above-mentioned Republic of China notice number 449682 generally has the following problems. In the conventional heat radiating fan 80, according to the groove path 812, one end of the power connection line 822 can be penetrated and extended to the outside of the housing 81, but the electrical connection port 821 of the stator seat 82 is connected to the groove path 812. Is not oriented in the direction, that is, it has a constant distance from the electrical connection port 821 to the groove 812, and therefore, after connecting the power connection line 822 to the electrical connection port 821, A certain distance has to be wound in advance in the storage chamber 811, and by doing so, it can be penetrated and extended to the outside of the housing 81 via the groove 812. There is a problem that the degree of difficulty in fixing work by winding 822 is increased, and it is very inconvenient in assembly. If the winding distance of the power connection line 822 is too long in the housing chamber 811 of the housing 81, the power connection line 822 is likely to be caught in the fan wheel 83 when the heat dissipation fan 80 is actually operated. There was a problem.

  Moreover, according to the said heat radiating fan 80, while the difficulty of the fixing operation by the winding mentioned above increases, in addition to the problem that it becomes very inconvenient in assembly, it has the following problems. Referring again to FIG. 13, since the electrical connection port 821 of the stator seat 82 is formed below the permanent magnet 831 of the fan wheel 83, the fan wheel 83 is finished after the assembly work of the heat radiating fan 80 is finished. A gap D having a sufficient distance must be reserved between the bottom edge of the permanent magnet 831 and the stator seat 82, and the gap D is connected to an electrical connection port 821 (for example, a welding point) and a power connection line 822. As a result, the fan wheel 83 can rotate and operate smoothly. However, according to the conventional heat radiating fan 80, since the relatively large distance D must be reserved in advance, the axial height of the entire heat radiating fan 80 cannot be effectively reduced. In addition, there is a problem that it cannot be designed to be light and thin.

  Furthermore, the conventional heat radiating fan 90 posted in the above-mentioned new public notice number 434435 of the Republic of China generally has the following problems. In the conventional heat radiating fan 90, the conductive wire groove 911 is installed at the corner between the side walls adjacent to the fan base 91, thereby reducing the winding distance of the electric wire 93. The electrical connection port (not shown) of the stator structure (not shown) for driving the rotation of the wire 94 is not oriented in the direction of the conductor groove 911. After being connected to, the electric wire 93 still has to be wound a certain distance in the space formed inside the fan base 91, thereby penetrating to the outside of the fan base 91 via the conductor groove 911. Can't grow. Therefore, according to the conventional heat radiating fan 90, there is a problem in that the difficulty in fixing work by winding the electric wire 93 is similarly increased, and it is very inconvenient in assembly. Thus, the structure of the conventional heat dissipation fan as described above must be further improved.

  The present invention has been invented in view of such problems, and the main object of the present invention is to increase the difficulty in fixing the winding of the power connection line by a conventional heat radiating fan, and to improve the assembly. It is an object of the present invention to provide a heat dissipation fan that can solve the problem of inconvenience.

  The second object of the present invention is to provide a heat radiating fan capable of effectively reducing the overall axial height.

In order to achieve the above object, a heat dissipating fan according to the present invention is as follows. That is,
It has a frame, a substrate, a power connection line and a fan wheel. A side wall portion is formed on the frame, a housing space is formed inside the side wall portion, a shaft seat is provided in the housing space, and the side wall portion is formed so as to communicate with a conductor opening of the housing space. Substrate is coupled to the frame, the substrate coil set and the electrical connection port is provided in, on the outer edge of the substrate convex portions are formed, the convex portion is formed to face the lead port of the frame, a coil assembly the electrical connection ports are electrically connected, the electrical connection ports Ru is formed on the surface of the convex portion. One end of the power connection line is connected to an electrical connection port, and the other end is arranged to take elongation by Nuki穿the guide wire port. Fanhoi Le has a hub, the hub is provided a central axis and the permanent magnet, the central axis is used to couple with the shaft seat, the permanent magnet is formed so that the relative to the coil set, protrusion The electrical connection port is arranged so as to be located on a reference line located on a straight line passing through the shaft seat and the conductor opening. The electrical connection port of the board is formed so as to be located outside the rotation range of the permanent magnet of the fan wheel, and the electrical connection port is located between the outer peripheral edge of the permanent magnet and the inner side wall of the side wall portion. It is formed.

Further, in the heat dissipation fan according to the present invention , the lead wire port is coupled to the positioning member, the lead wire port is formed with the first contact surface, the positioning member is formed with the second contact surface, The second contact surface may be formed so as to press and sandwich the power connection line together. In addition, a first staircase portion is formed on the first contact surface of the conductor opening, and a second staircase portion is formed on the second contact surface of the positioning member to correspond to the first staircase portion. The portion and the second staircase portion may be formed so as to be fitted to each other. The wire opening may be formed so as to be located at one corner of the side wall portion. A bottom plate is formed inside the side wall portion of the frame, the bottom plate is provided with a plurality of locking claws in the accommodation space, and the shaft seat is coupled to the bottom plate and located between the respective locking claws. The board is formed so as to be coupled to the housing space of the frame and abut against the bottom plate, and the respective locking claws can be formed so as to lock and join the outer peripheral edge of the board. The coil set can also be formed by a printed pattern and bonded to the surface of the substrate.

The heat dissipation fan according to the present invention includes a frame, a substrate, a power supply connection line, and a fan wheel. A side wall portion is formed on the frame, a housing space is formed inside the side wall portion, a shaft seat is provided in the housing space, and the side wall portion is formed so as to communicate with a conductor opening of the housing space. The board is coupled to the frame, the board is composed of a wiring board and a driving circuit board, a coil set is formed on the wiring board, an electrical connection port is provided on the driving circuit board, and the driving circuit board is wired The plate is electrically connected, the coil set is electrically connected with the electrical connection port, and the electrical connection port is formed adjacent to the conductor opening of the frame . One end of the power connection line is connected to an electrical connection port, and the other end is et provided an electrically-ray port to take elongation and Nuki穿. The impeller hub is formed, the hub is provided a central axis and the permanent magnet, the central axis is used to couple with the shaft seat, the permanent magnet is formed so as to face the coil set, electrical The general connection port is disposed so as to be located on a reference line located on a straight line passing through the shaft seat and the conductor opening. The electrical connection port of the board is formed so as to be located outside the rotation range of the permanent magnet of the fan wheel, and the electrical connection port is located between the outer peripheral edge of the permanent magnet and the inner side wall of the side wall portion. It is formed.

Further, in the heat dissipation fan according to the present invention, the conducting wire port is coupled to the positioning member, the conducting wire port is formed with the first contact surface, the positioning member is formed with the second contacting surface, The second contact surface may be formed so as to press and sandwich the power connection line together. In addition, a first staircase portion is formed on the first contact surface of the conductor opening, and a second staircase portion is formed on the second contact surface of the positioning member to correspond to the first staircase portion. The portion and the second staircase portion may be formed so as to be fitted to each other. The wire opening may be formed so as to be located at one corner of the side wall portion. A bottom plate is formed inside the side wall portion of the frame, the bottom plate is provided with a plurality of locking claws in the accommodation space, and the shaft seat is coupled to the bottom plate and located between the respective locking claws. The board is formed so as to be coupled to the housing space of the frame and abut against the bottom plate, and the respective locking claws can be formed so as to lock and join the outer peripheral edge of the board.

  According to the heat radiating fan of claim 1 of the present invention, the electrical connection port is formed so as to be located on a reference line passing through the shaft seat and the wire opening, so that the electrical connection port and the wire are formed. Since the distance from the mouth can be effectively shortened, there is an advantage that the convenience of assembling the power connection line can be improved.

  According to the heat dissipating fan of claim 2 of the present invention, the electrical connection port of the substrate is formed so as to be located between the outer peripheral edge of the permanent magnet of the fan wheel and the inner peripheral wall of the side wall portion. The gap formed between the permanent magnet of the fan wheel and the substrate does not need to accommodate the electrical connection port and the power supply connection line, so the gap can be appropriately reduced, and the heat dissipation. There is an advantage that the axial height of the fan can be effectively reduced.

  According to the heat dissipating fan of claim 9 of the present invention, a convex portion is formed on the outer peripheral edge of the substrate, the convex portion is formed so as to face the wire opening of the frame, and the convex portion is on the reference line. The electrical connection port is formed on the surface of the convex portion, so that the electrical connection port is further formed closer to the conductor opening, and the power connection line is further facilitated. In addition, there is an advantage that the convenience of assembling can be further improved since the lead wire port can be penetrated and extended.

  According to the radiating fan of the sixteenth aspect of the present invention, the substrate is composed of a wiring board and a driving circuit board, the coil set is formed on the wiring board, and the electrical connection port is connected to the driving circuit board. The drive circuit board is electrically connected to the wiring board, the coil set is electrically connected to the electrical connection port, and the electrical connection port is adjacent to the conductor opening of the frame. By being formed in such a manner, the electrical connection port can be directly brought close to the conductor opening, and the power connection line can be further away from the rotation range of the fan wheel. This makes it possible to improve the convenience of assembly work, prevent the power connection line from being caught in the fan wheel, and reduce the axial height of the heat dissipation fan. .

  According to the heat radiating fan of claims 3, 11 and 17 of the present invention, there is an advantage that the stability of the coupling of the power supply connection lines can be enhanced.

  According to the heat radiating fan of claims 4, 12, and 18 of the present invention, there is an advantage that the power connection line can be prevented from falling off due to pulling.

  According to the heat dissipating fan of the fifth, sixth, thirteenth, fourteenth and nineteenth aspects of the present invention, the distance between the electrical connection port and the conductor opening can be further shortened. In addition, there is an advantage that it can be easily penetrated and extended to the outside of the frame via the conductor opening.

  According to the heat radiating fan of the seventh, fifteenth and twentieth aspects of the present invention, there is an advantage that the stability of the coupling between the substrate and the frame can be enhanced.

  According to the heat dissipation fan of claim 8 of the present invention, there is an advantage that the height of the substrate in the axial direction can be kept low.

It is a disassembled perspective view by the heat radiating fan of 1st Example of this invention. It is a top view of the state assembled by the thermal radiation fan of 1st Example of this invention. It is a disassembled perspective view by the heat radiating fan of 2nd Example of this invention. It is a top view of the state assembled by the thermal radiation fan of 2nd Example of this invention. It is sectional drawing of the state assembled by the thermal radiation fan of 2nd Example of this invention. It is a disassembled perspective view by the heat radiating fan of 3rd Example of this invention. It is a top view of the state assembled by the thermal radiation fan of 3rd Example of this invention. It is a disassembled perspective view by the heat radiating fan of 4th Example of this invention. It is a top view of the state assembled by the thermal radiation fan of 4th Example of this invention. It is local sectional drawing of the state which pressed the power supply connection line using the positioning member by the thermal radiation fan of embodiment of this invention. It is explanatory drawing of the bottom part by the conventional 1st type heat radiation fan. It is a disassembled perspective view by the conventional 2nd type heat radiation fan. It is sectional drawing of the state assembled by the conventional 2nd type heat radiation fan. It is a disassembled perspective view by the conventional 3rd type heat radiation fan.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is an exploded perspective view of a heat radiating fan according to the first embodiment of the present invention, and FIG. 2 is a plan view of the assembled state by the heat radiating fan of the first embodiment of the present invention. 1 and 2, a heat radiating fan 1 according to a first embodiment of the present invention is shown. The heat radiating fan 1 includes at least the frame 10, the substrate 20, the power connection line 30, and the fan wheel 40. The frame 10 is composed of an axial flow type frame or a blow type frame. As an embodiment shown in the figure, the frame 10 comprises a blower type frame. The substrate 20 is coupled to the inside of the frame 10 and the substrate 20 is used to drive the fan wheel 40 to rotate and operate. Since the power connection line 30 is formed so as to be electrically connected to the substrate 20, it can be circumscribed with the power source. The fan wheel 40 is rotatably coupled to the inside of the frame 10, thereby providing a heat dissipation effect by blowing air.

  A side wall portion 11 is formed on the frame 10, and an accommodation space 12 is surrounded and formed inside the side wall portion 11, and a shaft seat 13 is provided in the accommodation space 12. The frame 10 is further provided with an air inlet 14 and an air outlet 15 for communicating with the accommodation space 12. In addition, a conductor opening 16 is formed in the side wall portion 11, and the conductor opening 16 is formed so as to communicate with the accommodation space 12. The conductor opening 16 is preferably formed so as to be located at one corner of the side wall 11 of the frame 10. Referring to FIG. 2, a reference line L extending to the wire opening 16 is formed in the shaft seat 13, and the reference line L is formed so as to mainly pass through the shaft seat 13 and the wire opening 16.

  The substrate 20 is installed in the receiving space 12 of the frame 10 and is preferably formed so as to be coupled to the shaft seat 13. The board 20 is provided with a coil set 21 and an electrical connection port 22. The coil set 21 is preferably formed by a printed pattern or is aligned with the surface of the substrate 20 using another suitable method, so that the axial height of the substrate 20 can be further reduced. The electrical connection port 22 is formed in an electrical connection state with the coil set 21, and the electrical connection port 22 is preferably constituted by one or a plurality of electrical contacts. Among them, the electrical connection port 22 is formed so as to face the conductor port 16 of the frame 10, and the electrical connection port 22 is formed so as to be positioned on the reference line L, that is, the shaft seat 13, the conductor port 16, the electrical Since all three members with the general connection port 22 can be simultaneously positioned on the reference line L, the distance from the electrical connection port 22 to the conductor port 16 can be effectively shortened.

  One end of the power supply connection line 30 is connected to the electrical connection port 22 of the substrate 20, and the other end of the power supply connection line 30 is formed so as to penetrate through and extend to the outside directly through the conductor port 16 of the frame 10. Therefore, it can be circumscribed with the power source. Among them, since the power connection line 30 can be fixed to the lead wire port 16 by using various fixing means (for example, fixing using adhesive or a fixing member), the power connection line 30 is arbitrarily loosened and moved. Can be prevented. Thereby, the current required for the fan wheel 40 to rotate and operate using the power connection line 30 can be provided to the coil set 21 of the substrate 20.

  A hub 41 is formed on the fan wheel 40. The hub 41 is provided with a central shaft 411 and a permanent magnet 412. The central shaft 411 is coupled to the shaft seat 13, so that the fan wheel 40 rotates inside the frame 10. The permanent magnet 412 is formed so as to face the coil set 21.

  When the heat radiating fan 1 of the present invention is actually used, a flux linkage action is generated between the coil set 21 and the permanent magnet 412, so that the fan wheel 40 may be rotated and operated. it can. As a result, the heat radiating fan 1 of the present invention can draw an air flow from the wind inlet 14 and further drives the air flow using the fan wheel 40 and discharges it to the external space via the wind outlet 15. Therefore, when the heat dissipating fan 1 is attached to various electronic devices or electronic devices, a certain heat dissipating action can be provided.

  According to the characteristics of the structure described above, the heat dissipating fan 1 according to the first embodiment of the present invention has at least the following main advantages, and is directed to the conductor port 16 of the frame 10 using the electrical connection port 22. By designing the structure in which the electrical connection port 22 is positioned on the reference line L, the electrical connection port 22 can be further brought closer to the conductor port 16, that is, the electrical connection port 22 and the conductor port 16 are connected to each other. The distance can be shortened effectively. As a result, after one end of the power connection line 30 is connected to the electrical connection port 22, the other end of the power connection line 30 can be directly penetrated and extended to the outside of the frame 10 via the conductor port 16. In this manner, the power connection line 30 can pass through and extend through the conductor port 16 without using a winding method inside the frame 10, that is, the power source connection line 30 is relatively straight. Therefore, the convenience of assembly of the power supply connection line 30 can be enhanced. Furthermore, the heat radiating fan of the present invention can avoid the power connection line 30 from being caught in the fan wheel 40 in actual operation.

  FIG. 3 is an exploded perspective view of the heat dissipating fan of the second embodiment of the present invention, and FIG. 4 is a plan view of the assembled state of the heat dissipating fan of the second embodiment of the present invention. 3 and 4, a heat radiating fan 2 according to a second embodiment of the present invention is posted. The heat radiating fan 2 includes at least the frame 10, the substrate 20 a, the power connection line 30, and the fan wheel 40. Among them, the frame 10, the power connection line 30 and the fan wheel 40 are the same as the features of the structure posted in the first embodiment described above, and therefore the description thereof is omitted here.

  The substrate 20a according to the second embodiment of the present invention is installed in the housing space 12 of the frame 10, and the coil set 21 and the electrical connection port 22 are also provided on the substrate 20a. The coil set 21 is similarly connected to the electrical connection port. The electrical connection port 22 is formed so as to be located outside the rotation range of the permanent magnet 412 of the fan wheel 40, and more specifically, the electrical connection port 22. Is formed between the outer peripheral edge of the permanent magnet 412 and the inner side wall of the side wall portion 11.

  According to the characteristics of the structure described above, the heat radiating fan 2 according to the second embodiment of the present invention has at least the following main advantages. Similarly, the electrical connection port 22 is used for the conductor port 16 of the frame 10. Therefore, the convenience of assembly of the power supply connection line 30 can be increased by designing the structure in which the electrical connection port 22 is positioned on the reference line L. More importantly, referring to the sectional view of the assembled state of the heat dissipating fan of the second embodiment of the present invention shown in FIG. 5, it is formed between the permanent magnet 412 of the fan wheel 40 and the substrate 20a. Since the distance D does not need to accommodate the electrical connection port 22 (for example, a welding point) and the power supply connection line 30, the distance D can be reduced to a relatively appropriate distance, and the entire heat radiation fan 2 can be reduced. Therefore, the heat radiating fan 2 can be further reduced in weight and size.

  FIG. 6 is an exploded perspective view of the heat dissipating fan of the third embodiment of the present invention, and FIG. 7 is a plan view of the assembled state of the heat dissipating fan of the third embodiment of the present invention. Referring to FIGS. 6 and 7, a heat radiating fan 3 according to a third embodiment of the present invention is posted. The heat dissipating fan 3 includes at least the frame 10, the substrate 20 b, the power connection line 30, and the fan wheel 40. Among them, the frame 10, the power connection line 30 and the fan wheel 40 are the same as the features of the structure posted in the first embodiment described above, and therefore the description thereof is omitted here.

  The substrate 20b according to the third embodiment of the present invention is installed in the housing space 12 of the frame 10, and the coil set 21 and the electrical connection port 22 are also provided on the substrate 20b. 22 is formed in an electrically connected state. More specifically, in comparison with the above-described embodiment, in the third embodiment, a convex portion 23 is formed on the outer peripheral edge of the substrate 20b, and the convex portion 23 is formed so as to face the conductive wire port 16 of the frame 10. The general connection port 22 is formed on the surface of the convex portion 23, and the convex portion 23 and the electrical connection port 22 are formed so as to be positioned on the reference line L at the same time.

  According to the characteristics of the structure described above, the heat radiating fan 3 according to the third embodiment of the present invention has at least the following main advantages. Similarly, the electrical connection port 22 is used to connect the conductor port 16 of the frame 10. Therefore, the convenience of assembly of the power supply connection line 30 can be increased by designing the structure in which the electrical connection port 22 is positioned on the reference line L. More importantly, the design of the convex portion 23 of the substrate 20b places the electrical connection port 22 of the substrate 20b outside the rotation range of the permanent magnet 412 of the fan wheel 40, and the electrical connection port 22 uses the convex portion 23. As a result, it is possible to get closer to the conductor opening 16, and the power connection line 30 can be passed through the conductor opening 16 more simply and straightly. The sex can be further enhanced.

  FIG. 8 is an exploded perspective view of the heat dissipating fan of the fourth embodiment of the present invention, and FIG. 9 is a plan view of the assembled state of the heat dissipating fan of the fourth embodiment of the present invention. Referring to FIGS. 8 and 9, a heat dissipation fan 4 according to a fourth embodiment of the present invention is posted. The heat radiating fan 4 includes at least the frame 10, the substrate 20 c, the power connection line 30, and the fan wheel 40. Among them, the frame 10, the power connection line 30 and the fan wheel 40 are the same as the features of the structure posted in the first embodiment described above, and therefore the description thereof is omitted here.

The substrate 20c of the fourth embodiment of the present invention is installed in the housing space 12 of the frame 10, and the coil set 21 and the electrical connection port 22 are also provided on the substrate 20c, and the coil set 21 is similarly connected to the electrical connection port. 22 is formed in an electrically connected state. More particularly, when compared with the embodiment described above, the substrate 20c in the third embodiment is mainly composed of the wiring board 24 and the driving circuit board 25. The coil set 21 is formed on the surface of the wiring board 24, and the electrical connection port 22 is provided on the surface of the drive circuit board 25. In addition, the drive circuit board 25 is electrically connected to the wiring board 24, and the electrical connection port 22 is positioned on the reference line L, and is further positioned on one side adjacent to the conductor opening 16 of the frame 10. Let The drive circuit board 25 includes a drive circuit (not shown) composed of a plurality of electronic members. Thereby, the drive circuit board 25 can interlock | cooperate that the fan wheel 40 rotates and act | operates by operating the coil set 21. FIG.

  According to the characteristics of the structure described above, the heat radiating fan 4 according to the fourth embodiment of the present invention has at least the following main advantages. Similarly, the electric connection port 22 is positioned on the reference line L. The convenience of assembly of the power supply connection line 30 can be enhanced by the design. More importantly, compared with the above-described embodiment of the fourth embodiment, the drive circuit board 25 of the fourth embodiment allows the electrical connection port 22 to be directly close to the conductor port 16, so that the power connection The assembly work of the wire 30 becomes simpler and more convenient. Further, the plurality of electronic members of the drive circuit board 25 are formed so as to be located outside the rotation range of the permanent magnet 412 of the fan wheel 40, and the power connection line 30 is further away from the rotation range of the fan wheel 40. Therefore, the overall axial height of the heat dissipation fan 4 can be effectively reduced. Furthermore, since the power connection line 30 can be effectively prevented from being caught in the fan wheel 40, normal operation of the heat dissipation fan 4 can be ensured.

  According to the design concept of the structure of the heat dissipating fans 1, 2, 3, 4 of the present invention described above, the joint technical feature of the heat dissipating fans 1, 2, 3, 4 of the respective embodiments is “electrical connection port 22 Is located on the reference line L ", and similarly, it is possible to solve problems such as difficulty in assembling the power connection line in the conventional heat dissipating fan. Among them, the characteristics of the other auxiliary structures can be changed as follows for the heat dissipating fans 1, 2, 3, and 4 in the respective embodiments, and the characteristics of the auxiliary structures are preferably set as described above. The heat dissipation fans 1, 2, 3, 4 of the present invention can be arbitrarily incorporated into the heat dissipation fans 1, 2, 3, 4 of the embodiment (the following description will be given by taking one of the embodiments as an example). Merits can be made more complete.

  Referring to FIGS. 1 and 2, taking the heat radiating fan 1 of the first embodiment as an example, a bottom plate 111 is preferably formed inside the side wall portion 11 of the frame 10. A plurality of locking claws 112 are provided, and the shaft seat 13 is formed so as to be coupled to the bottom plate 111 (coupling can be performed using an integral molding or assembly method), and each locking claw 112 is formed between the two. Thereby, when the board | substrate 20 is installed in the accommodation space 12 of the flame | frame 10, and is contact | abutted to the baseplate 111, each latching claw 112 is latched and couple | bonded with the outer periphery of the board | substrate 20, The substrate 20 can provide a more stable bonding effect.

  Referring to FIGS. 1 and 2 again, taking the heat radiating fan 1 of the first embodiment as an example, the frame 10 is preferably coupled with an upper lid 18 having an air inlet (not shown). Thereby, when the upper lid 18 is coupled to the frame 10, the airflow can be more smoothly guided to the accommodation space 12 by utilizing the design of the air guide opening of the upper lid 18.

  Referring to FIGS. 1 and 2 again, taking the heat radiating fan 1 of the first embodiment as an example, the lead wire port 16 of the frame 10 is preferably coupled to the positioning member 17, and the lead wire port 16 is in contact with the first contact point. A surface 161 is formed, and a second contact surface 171 is formed on the positioning member 17. Thereby, after the power supply connection line 30 penetrates and extends through the conductor port 16, the positioning member 17 is coupled to the conductor port 16, thereby using the first contact surface 161 and the second contact surface 171. Since the power connection line 30 is formed so as to be pressed and pinched together, the fixing effect of the power connection line 30 can be enhanced, and one end of the power connection line 30 is arbitrarily loosened from the electrical connection port 22 and dropped off. You can be sure not to.

  FIG. 10 is a partial cross-sectional view showing a state where the power connection line is pressed using the positioning member by the heat radiating fan of the embodiment of the present invention. Referring to FIG. 10, a first stepped portion 162 is further formed on the first contact surface 161 of the conductor port 16, and the second stepped surface 171 of the positioning member 17 is preferably in the shape of the first stepped portion 162. A second staircase portion 172 is formed so as to correspond, and the first staircase portion 162 and the second staircase portion 172 are fitted so as to correspond to each other. Accordingly, when the first contact surface 161 and the second contact surface 171 are formed so as to press and sandwich the power connection line 30 jointly, the power connection line 30 includes the first step portion 162 and the second step portion. By 172, a folded state as shown in FIG. 10 is formed. Accordingly, by providing a relatively good pull prevention function, it is possible to prevent the power supply connection line 30 from being unexpectedly pulled by an external force, so that one end of the power supply connection line 30 is connected to the electrical connection port 22. It can be ensured that it will not loosen and fall off.

  As described above, according to the heat dissipating fans 1, 2, 3, and 4 of the present invention, the electrical connection port 22 is reliably directed to the conductor port 16 of the frame 10 and the electrical connection port 22 is then used. Since the power supply connection line 30 can be penetrated through the conductor port 16 and passed through the frame 10 without using a winding method, the power supply connection line can be passed through the design of the structure positioned on the reference line L. The convenience in assembly of 30 can be increased effectively.

  The present invention may be implemented in other ways without departing from the spirit and essential characteristics thereof. Accordingly, the preferred embodiments described herein are exemplary and not limiting.

1, 2, 3, 4 Radiating fan 10 Frame 11 Side wall 111 Bottom plate 112 Locking claw 12 Housing space 13 Axle seat 14 Air inlet 15 Air outlet 16 Conductor port 161 First contact surface 162 First step portion 17 Positioning member 171 Second contact surface 172 Second staircase 18 Lid plate 20, 20a, 20b, 20c Substrate 21 Coil set 22 Electrical connection port 23 Convex 24 Wiring board 25 Drive circuit board 30 Power connection line 40 Fan wheel 41 Hub 411 Central axis 412 Permanent magnet 70 Radiation fan 71 Line arrangement structure 711 Bottom portion 712 Side support portion 713 Stop plate portion 72 Wire material 80 Heat radiation fan 81 Housing 811 Housing chamber 812 Groove way 82 Stator seat 821 Electrical connection port 822 Power connection line 83 Fan Wheel 831 Permanent magnet 84 Cover plate 841 Convex plate 90 Heat dissipation fan 9 Fan group seat 911 lead groove 92 packing 93 wire 94 impeller L reference line

Claims (12)

In the heat radiating fan having the frame (10), the substrate (20 b ), the power supply connection line (30), and the fan wheel (40), the frame (10) is formed with a side wall (11), and the side wall (11) An accommodation space (12) is formed in the interior, the accommodation space (12) is provided with a shaft seat (13), and the side wall (11) communicates with the conductor opening (16) of the accommodation space (12). is formed, the substrate (20 b) is coupled to the frame (10), the substrate (20 b) in the provided electrical connection port and coil sets (21) (22), the outer peripheral edge of the substrate (20b) is A convex part (23) is formed, the convex part (23) is formed so as to face the conductor opening (16) of the frame (10), and the coil set (21) and the electrical connection port (22) are electrically connected to each other. connected, an electrical connection port (22) is convex portion (23) Is formed on the surface, one end of the power connecting line (30) is connected to the electrical connection port (22), and the other end is disposed guide wire port (16) to put elongation and Nuki穿, impeller (40) has a hub (41). The hub (41) is provided with a central shaft (411) and a permanent magnet (412), and the central shaft (411) is used for coupling with the shaft seat (13). The permanent magnet (412) is formed to face the coil set (21), and the convex portion (23) and the electrical connection port (22) pass through the shaft seat (13) and the wire opening (16). The electric connection port (22) of the board ( 20b ) is disposed outside the rotation range of the permanent magnet (412) of the fan wheel (40). And the electrical connection port (22) is a permanent magnet (412). ) And an inner peripheral wall of the side wall portion (11).   The conducting wire port (16) is coupled to the positioning member (17), the first abutting surface (161) is formed in the conducting wire port (16), and the second abutting surface (171) is formed in the positioning member (17). The first contact surface (161) and the second contact surface (171) are formed so as to press and sandwich the power connection line (30) together. Heat dissipation fan.   A first stepped portion (162) is formed on the first contact surface (161) of the conductor opening (16), and a first stepped portion (162) is formed on the second contact surface (171) of the positioning member (17). The second step portion (172) is formed to correspond to the first step portion (172), and the first step portion (162) and the second step portion (172) are formed so as to be fitted to each other. The heat dissipation fan described in 1.   The heat radiating fan according to claim 1, wherein the conductive wire opening (16) is formed so as to be positioned at one corner of the side wall (11).   The heat radiating fan according to claim 3, wherein the conductive wire opening (16) is formed so as to be positioned at one corner of the side wall (11). A bottom plate (111) is formed inside the side wall (11) of the frame (10), and the bottom plate (111) is provided with a plurality of locking claws (112) in the accommodation space (12). (13) is formed to be coupled to the bottom plate (111) and located between the respective locking claws (112), and the substrate (20 b ) is coupled to the accommodating space (12) of the frame (10). It is formed so as to abut against the bottom plate (111) Te, claim the respective locking claws (112) is being formed to mate engages the outer periphery of the substrate (20 b) 1 Or the heat dissipation fan of 2. The heat dissipating fan according to claim 1, wherein the coil set (21) is formed by a printed pattern and is coupled to a surface of the substrate ( 20b ). In the heat dissipating fan having the frame (10), the substrate ( 20c ), the power connection line (30), and the fan wheel (40), the frame (10) is formed with a side wall (11), and the side wall (11) An accommodation space (12) is formed in the interior, the accommodation space (12) is provided with a shaft seat (13), and the side wall (11) communicates with the conductor opening (16) of the accommodation space (12). The substrate (20 c ) is formed and joined to the frame (10), and the substrate (20 c ) is composed of a wiring board (24) and a drive circuit board (25), and the wiring board (24) has a coil assembly. (21) is formed, the drive circuit board (25) is provided with an electrical connection port (22), the drive circuit board (25) is electrically connected to the wiring board (24), and the coil set (21 ) is electrically connected to the electrical connection port (22), electrical contacts Port (22) is formed adjacent to the conductor opening of the frame (10) (16), one end of the power connecting line (30) is connected to the electrical connection port (22), and the other end electrically wire port (16) provided al is to put extended by Nuki穿and the fan wheel (40) is formed hub (41), the central axis (411) is a permanent magnet (412) provided on the hub (41) , the central axis (411) is used to couple the shaft seat (13), the permanent magnet (412) is formed so as to face the coil sets (21), electrical connection port (22) is axial seat The electrical connection port (22) of the substrate (20 c ) is disposed on the reference line (L) located on the straight line passing through (13) and the conductor opening (16), and the fan wheel (40 ) To be located outside the rotation range of the permanent magnet (412) And the electrical connection port (22) is formed to be located between the outer peripheral edge of the permanent magnet (412) and the inner wall of the side wall (11).   The conducting wire port (16) is coupled to the positioning member (17), the first abutting surface (161) is formed in the conducting wire port (16), and the second abutting surface (171) is formed in the positioning member (17). The first contact surface (161) and the second contact surface (171) are formed so as to jointly press and sandwich the power connection line (30). Heat dissipation fan. A first stepped portion (162) is formed on the first contact surface (161) of the conductor opening (16), and a first stepped portion (162) is formed on the second contact surface (171) of the positioning member (17). the second stepped portion for responding (172) is formed to claim 9 in which the first stepped portion (162) and the second stepped portion (172), characterized in that it is formed to mate with each other The heat dissipation fan described in 1. 11. The heat dissipation fan according to claim 8 , wherein the conducting wire opening is formed so as to be positioned at one corner of the side wall portion. A bottom plate (111) is formed inside the side wall (11) of the frame (10), and the bottom plate (111) is provided with a plurality of locking claws (112) in the accommodation space (12). (13) is coupled to the bottom plate (111) and is formed to be positioned between the respective locking claws (112), and the substrate (20c) is coupled to the accommodating space (12) of the frame (10). It is formed so as to abut against the bottom plate (111), according to claim 8, 9 each locking pawl (112) is characterized by being formed to mate engages the outer periphery of the substrate (20c) Or the heat dissipation fan of 10.

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