JPH0528693Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a power supply that is inserted and fitted into an equipment inlet (power supply socket) attached to an electrical equipment, and supplies power to the electrical equipment through the inlet. The present invention relates to connectors, and particularly to a power supply connector that prevents arcing caused by insertion and removal of pin terminals and has improved withstand voltage.

[Background technology]

A power connector for supplying power to electrical equipment includes, for example, a cord 10 having a power plug (not shown) at one end, as shown in FIG. 5a, and
A connector tip 12 having a plurality of pin terminal insertion holes 11, a cord 10 and a connector tip 12
The connector main body 13 is provided between the connector body 13 and is inserted into and fitted into an equipment inlet (power socket) attached to an electrical equipment to supply power to the electrical equipment. The configuration of the device inlet and the conventional power connector will be explained below.

(1) Equipment inlet The equipment inlet 500 shown in Fig. 4 has a plurality of pin terminals 501 arranged at predetermined intervals (in Fig. 4, the center terminal is the ground terminal and the pair of terminals below the ground terminal are active). A substantially box-shaped inlet body 502 injection-molded using a thermoplastic hard insulating resin such as PBT resin, a power connector fitting recess 503 in the terminal arrangement portion of the inlet body 502, and an inlet 500. A substantially fan-shaped fixing piece 505 having a screw through hole 504 for fixing to an electrical equipment housing by screw fastening, and a pin terminal fixing wall (see Fig. (not shown). Note that the pin terminal 501 has its front end connected to the inlet body 50.
2, and has a connecting part connected to a power supply part of an electric device with an insulated wire at the rear.

(2) Connector The power connector shown in Figures 5a and b is a cord 10 with a power plug (not shown) at one end.
and a hexagonal, substantially trapezoidal connector tip 12 inserted into the fitting recess 503 of the inlet 500.
, a plurality of pin terminal insertion holes 11 provided on the front end surface of the connector tip 12 , and a connector main body 13 provided between the cord 10 and the connector tip 12 . In addition, the connector tip 12
and a method of using the same plastic as the material of the connector body 13, for example, a method of integrally molding it with vinyl chloride resin (applicable to those with a rated voltage of 125V in Japan, the United States, etc.), and a method of using the same plastic as the material of the connector body 13. The thermoplastic hard plastic,
For example, there is a method of using a connector insulator integrally molded in advance with PBT resin or the like, and using soft plastic, such as PVC resin, for the connector main body 13.

Here, the internal structure of a connector in which a connector insulator is applied to the connector tip 12 described above will be described with reference to the AA cross-sectional view of FIG. 5a shown in FIG. 5b. Connector tip 12 is connector insulator 1
4 and a locking body 17, the connector insulator 14
is provided with an insertion hole 11 through which the pin terminal 501 of the inlet 500 is inserted, a connector terminal arrangement section 16, and a cord end arrangement section 15. Further, a connector terminal 20 having a connecting portion 19 connected to the conductor 18 of the cord 10 is inserted into the connector terminal arranging portion 16, and a connecting portion 19 between the connector terminal 20 and the cord 10 is inserted into the cord end arranging portion 15.
A locking body 17 that is locked to the connector insulator 14 holds and fixes the connector terminal 20 within the connector insulator 14 at the upper part of the cord end placement portion 15 . In addition, the locking body 17 and the connector insulator 14
The locking is done by connecting the connector terminal 2 to which the cord 10 is connected.
0 into the connector insulator 14, the locking body 1
7 is inserted behind the connector insulator 14 from the cord 10 side, and the locking protrusion of the connector insulator 14 and the locking recess of the locking body 17 are engaged. Further, the locking body 17 is provided with a groove for arranging the cord 10. Reference numeral 13 denotes a connector main body portion integrally molded from PVC resin or the like with a cord protection portion from the rear end of the connector insulator 14 to the cord end.

Here, the reason why the insulator 14 is used for the connector tip 12 is because the part that holds the connector terminal 20 is made of the same material as the connector main body 13 (for example,
PVC resin, etc.), the inlet 500
When the connector is inserted and mated, the pin terminal 501
and variations in the dimensions of the connector terminals 20, and
Due to variations in the arrangement and fixed dimensions of both terminals,
The position and shape of the connector terminals 20 may change, resulting in poor contact, which may cause the connector to generate heat, which is unfavorable from a safety standpoint. In order to avoid this safety problem, a connector insulator 14 made of hard thermoplastic with excellent heat resistance is used.

On the other hand, these power connectors must meet the required characteristics stipulated by the safety standards of each country before they are approved and can be manufactured and sold. Electrical Appliance and Material Control Law in Japan, UL in the United States, etc.
Standards etc. are typical examples of such standards. The basis of the above standards is the IEC standard, and regarding the power connector mentioned above, there is IEC Standard No. 320 (1981 edition). Countries where the common rated voltage is 250V (mainly Europe)
The company has approved manufacturing based on the above-mentioned IEC standards. Safety test items that must be particularly noted under the IEC standards include the overload test and insertion/removal test described below.

A Contents of overload test When the voltage is 275V and the rated current is 10A or more,
While applying voltage and current of 1.25 times and power factor of 0.95 or more to the inlet and connector, insert and remove the connector 50 times at a rate of 15 times per minute, and confirm that there are no sparks between each terminal during the test.

B Contents of mating/unmating test Apply rated voltage and current to the inlet and connector and perform mating/unmating 1000 times at a rate of 15 times/minute, then apply 1.5 KV AC to each terminal and connector surface.
Apply the voltage for several minutes and check that there are no abnormalities in appearance, damage to the connector terminals, or melting of the resin that makes up the connector body.

When the conventional power connector made by the above-mentioned method was tested using the above test items, it was found that the power connector whose connector tip and connector body were integrally molded from the same plastic (e.g., PVC resin) had the following results: I am not satisfied with both tests. In addition, connectors whose tip end is made of a connector insulator integrally molded from hard thermoplastic and whose main body is made of PVC resin will pass the overload test, but will not pass the insertion/removal test. Can not.

The reason why conventional power connectors cannot satisfy the above-mentioned test is that the tip of the connector terminal is in contact with the wall of the insulator, and the rear end is locked by a locking body. Movement in two directions is restricted, and the connector terminals are unable to follow the above-mentioned variations in the dimensions of the inlet pin terminals and variations in the dimensions of the pin terminal arrangement.
This is because the connector terminals are significantly deformed, and because the connector terminals cannot follow the layout dimensions of the pin terminals, when inserting and mating the connector, the connector terminals are rubbed by the pin terminals, and this friction causes damage to the connector terminals. This is because metal powder is generated and adheres to the tip of the connector, causing sparks.

As a method to improve the above-mentioned problem, the following (a)
Possible methods are ~(c).

(a) Even if there are variations in the dimensions of the inlet pin terminals, the connector terminal should have a mechanism that applies strong elastic force to the contact portion of the connector terminal so that the pin terminal holding force of the connector terminal does not decrease.

(b) To enable the connector terminals to follow variations in the arrangement dimensions of the inlet pin terminals,
The connector terminal is held at the tip of the connector.

(c) Make sure that metal powder generated when the pin terminal of the inlet is inserted and fitted does not adhere to the pin terminal insertion hole at the tip of the connector and the outer periphery of the tip, or prevents arcing even if it does adhere.

The connector that falls under the above (b) is
There is one shown in Publication No. 36619. In order to insert and hold the connector terminal into the connector base, this connector has a flat plate part between the contact part of the connector terminal and the cord connection part, and the flat part is brought into contact with the peripheral wall of the base, and the groove of the locking member is used to connect the peripheral wall to the flat plate. The rear end of the connector terminal is held by a locking member, and the tip is held by the surrounding wall of the base, and the connector terminal is movable according to variations in the arrangement dimensions of the pin terminals in the inlet, thereby preventing damage to the connector terminal. This is taken into consideration.

[The problem that the idea aims to solve]

However, with conventional power connectors, the generation of metal powder due to wear of the connector terminals could be reduced by making the inlet pin terminals movable to follow variations in the arrangement dimensions, but the generated metal Since no measures were taken to prevent powder from adhering, for example, to the pin terminal insertion hole at the tip of the connector or to the outer periphery of the tip, there were problems such as insufficient prevention of arc generation and reduction in withstand voltage.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a power connector that prevents arcing caused by insertion and removal of pin terminals and has improved withstand voltage.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention has a connector terminal holder that holds a connector terminal, and a cord holder that holds a cord connected to the connector terminal, and is inserted into an equipment inlet attached to an electrical equipment. In a power connector that is fitted and supplies power to an electrical device through the inlet, the connector terminal holding portion includes an inner base that arranges and holds the connector terminal in a predetermined position, and a tip portion into which the inner base is inserted. , and an outer base having a rear end portion that protects a cord connecting portion that connects the connector terminal and the cord, and a connector body formed of integrally molded plastic from the rear end of the outer base of the connector terminal holding portion to the cord end. The connector terminal is located between a crimping part (including solder connection) for crimping a cord conductor, a terminal connecting part into which a terminal of the equipment inlet is inserted and connected, and the crimping part and the connecting part. The outer base has a flat plate portion, and the outer base has an outlet for passing the cord insulated core and having a gap between the cord and the cord insulated core to prevent the connector terminal of the plastic from filling the cord connecting portion. The inner base has a terminal placement hole that accommodates the terminal connection portion of the connector terminal and has a gap between the terminal connection portion and the terminal connection portion that allows movement of the terminal connection portion, and the terminal placement hole a groove for depositing abrasion metal powder generated by insertion and removal of the terminal of the device inlet and the terminal connection portion through a locking protrusion that engages with the tip of the terminal connection portion of the connector terminal at a position in front of the connector terminal; A power connector characterized in that: It provides:

That is, in the power connector of the present invention, by providing a groove of a predetermined size at a predetermined position corresponding to the connector terminal at the tip of the connector terminal holding portion,
By increasing the surface distance and area from the tip of the connector terminal to the outer base wall surface, abrasive metal powder generated when inserting and removing the connector terminal and the pin terminal of the inlet falls and accumulates in the groove, making it difficult to adhere to the pin terminal insertion hole. This is what I did. In addition, even if the metal powder adheres, due to the large surface distance and area mentioned above, the adhesion density of the metal powder decreases, and the occurrence of large flowers between each terminal and between each terminal and the outer base wall due to the metal powder is eliminated. , the withstand voltage is improved. Furthermore, by configuring the connector terminal holding portion with a double insulating base of an inner base and an outer base, and forming a groove with the wall surfaces of the inner base and outer base, it is possible to hold the connector terminal with a predetermined size and a predetermined position. This allows grooves to be easily provided in the grooves.

〔Example〕

Hereinafter, embodiments of the power connector according to the present invention will be described.

FIG. 1a is a perspective view showing a power connector according to an embodiment of the present invention, which includes a cord 10 having a power plug (not shown) at one end, and a connector tip having a plurality of pin terminal insertion holes 11. (connector terminal holding part) 12, and a connector main body part 13 provided between the cord 10 and the connector tip 12. It consists of a double insulating base, an inner (inside) base 200 and an outer (outside) base 400, and has a pin terminal insertion hole 11.
It has a plurality of grooves 12A formed by the contact between the inner base 200 and the outer base 400, corresponding to the positions of the inner base 200 and the outer base 400. Note that 100 indicates a connector terminal.

Hereinafter, the detailed structure of each part will be explained in the order of the connector terminal, the inner base, the locking body, and the outer base with reference to FIGS. 2 and 3.

As shown in FIG. 2a, the connector terminal 100 is formed by punching and pressing a single metal plate, and has a contact portion 101 consisting of a pair of upright pieces bent on both sides, and a bottom portion where the upright pieces are bent. is provided with a punched hole 102, and the bottom part is further extended to form a flat plate part 10.
3, and has a pair of cord connecting crimp pieces 104 connected to the flat plate part 103, and has a pair of cord connecting crimp pieces 104 connected to the flat plate part 103, and
02 is designed to provide a pair of upright pieces with elastic force so that the U-shaped contact portion 101 will not be deformed when the pin terminal of the inlet is inserted or removed.
Note that the connector terminal 100 is made of phosphor bronze, brass, or the like.

Next, the configuration of the inner base 200 will be shown with reference to FIGS. 2a and 2b. The inner base 200 is integrally formed into a hexagonal trapezoidal box shape of polyamide resin, PBT resin, etc., and has a pair of live terminal placement holes 201 on the bottom side of the trapezoid, and the live current terminal placement holes. 201, a ground terminal arrangement hole 202 arranged at a predetermined interval above the middle of the ground terminal arrangement hole 201, a substantially U-shaped notch 203 reaching the bottom of each terminal arrangement hole formed at the rear thereof, and a notch 203. A locking body 30, which will be described later, is installed inside the two walls 204 and 205 that constitute the structure.
A guide groove 206 is provided to which the guide protrusion No. 0 comes into contact. On the other hand, as shown in FIG.
A peripheral protrusion 208 having an inlet pin terminal insertion hole 207 is provided at the front of the terminal 1, 202, and a rectangular recess 209 larger than the pin terminal insertion hole 207 is further provided at the front of the peripheral protrusion 208. The recessed portion 209 is
As shown in the figure, a groove 12A is formed by contacting the outer base 400. Here, the peripheral protrusion 20
8 and the depth of the recessed portion 209 are respectively
It was set to 1.5 to 2.0 mm.

The locking body 300 is integrally formed of the same material as the inner base 200 (polyamide resin, PBT resin, etc.), and is used by being inserted and locked into the notch 203 of the inner base 200. As shown in FIG. 2a, the guide protrusion 301, which is generally U-shaped as a whole and fits into the guide groove 206, and the terminal placement hole on both walls forming the cutout 203 of the inner base 200 described above 201, 202, three engaging protrusions 302 that engage with the upper sides of the inner base 200, a contact recess 304 formed at the center of the lower part that contacts the grounding terminal placement hole 202 of the inner base 200, and a pair of leg pieces 305. It has.

The outer base 400 is the inner base 20
0 and the locking body 300, and as shown in FIG.
and a pair of locking walls 406A and 406B that lock the inner base 200. The accommodating portion 402 has a hexagonal substantially trapezoidal tip wall 403 having a pin terminal insertion hole 401 and six circumferential walls 404 extending in one direction perpendicular to the tip wall 403 .
Cover the outer periphery of the The above-described pair of locking walls 406A and 406B are provided on the upper and lower peripheral walls 404 at the rear end of the housing portion 402 with a thin wall portion 405 interposed therebetween. Locking wall 40 connected to lower peripheral wall 404
6A is a contact surface 407 that comes into contact with the rear end surface of the inner base 200, a pair of live terminals and their connection parts, and an outlet 408 that leads out the cord end.
and a protrusion 409 forming an outlet 408,
The central protrusion 409 is provided with an outlet 410 for a grounding terminal cord, and the protrusions 409 on both sides are provided with engaging arms 41 that lock and engage with the other locking wall 406B.
1 is provided. Further, a groove 412 is provided on the outer periphery of the locking wall 406A in which the engaging arm 411 is formed. The other locking wall 406B has a recess 413 into which the central protrusion 409 of the locking wall 406A described above fits, and an outlet 410A provided at the center of the recess 413 that covers the outer periphery of the grounding terminal and its connecting cord end. , a protrusion 414 that fits into the outlet 408, a protrusion 417 that constitutes the protrusion 414,
It has a groove 415 provided on the outer periphery and engagement protrusions 416 provided on both ends of the groove 415 and engaged with the engagement arm 411 described above.

Based on the above configuration, a pair of live terminals and a
The bottom of the connector terminal 100 consisting of two ground terminals is inserted into each terminal placement hole 20 of the inner base 200.
1, 202 and insert it until the connector terminal 100 abuts inside the peripheral protrusion 208 at the tip of each placement hole. By this insertion, the flat plate portion 103 of each connector terminal 100 is located in the notch portion 203. After inserting the connector terminal 100, the locking body 300 is placed in the notch 203 of the inner base 200, and the leg piece 305 of the locking body 300 and the contact recess 3
04 facing down, the guide protrusion 301 of the locking body 300 is brought into contact with the guide groove 206 of the inner base 200, and the locking body 300 is pressed. By this pressing, one thin wall forming the notch 203 allows the engagement protrusion 302 to be inserted by its elastic force, and the engagement protrusion 302 is locked and fixed to the upper side of each terminal placement hole 201, 202. be done. As a result, the flat plate portions 103 of the pair of live power terminals are connected to the bottom of the live power terminal arrangement hole 201 of the inner base 200 and the locking body 300.
It is held between the bottom portions of the pair of leg pieces 305.
The connector terminal 100 is held by the flat plate portion 103 described above, so that the peripheral protrusion 208 of the inner base 200
and is arranged in a terminal arrangement part formed on the entire wall of the locking body 300. The terminal arrangement portion is configured to surround the connector terminal 100 with a predetermined margin that allows movement of the connector terminal 100,
This allows the connector terminal 100 to have a movement that allows for variations in the arrangement dimensions of the inlet pin terminals.

Next, in order to protect the inner base 200 holding the connector terminal 100 with the outer base 400, insert the inner base 200 into which the connector terminal 100 is inserted so that the tip of the inner base 200 touches the tip wall 403 of the outer base 400. The pair of locking walls 40 are inserted into the housing part 402 until they touch each other.
6A, 406B at the thin wall portion 405, the protrusion 409 is placed in the recess 413, and the protrusion 414 is placed in the outlet 4.
08, the protrusions 409 are fitted or abutted on the protrusions 417, respectively, and the engagement arms 411 are engaged with the engagement protrusions 416 to be locked. As a result, the contact surfaces 407 of the locking walls 406A, 406B contact the rear end surface of the inner base 200, and movement of the inner base 200 within the outer base 400 is restricted. Due to the above engagement and locking, the outer periphery of the connection portion between the connector terminal 100 and the cord 10 and the cord end are covered by the outlet ports 408, 410, and 410A.

Next, referring to FIG. 3, the inner base 20
0 and the outer base 400 will be explained. FIG. 3 shows a sectional view taken along line BB in FIG. 2d, which makes the shape of the tip of the inner base 200 clear. As described above, the inner base 200 has a peripheral protrusion 208 on its tip that abuts the tip of the connector terminal 100, and the peripheral protrusion 208 allows the pin terminal insertion hole 2 of the inlet to be inserted into the inner base 200.
07 is formed. Furthermore, the peripheral protrusion 208
A rectangular recess 209 is provided at the tip. From the same figure, the notch 2 of the inner base 200
Engagement protrusion 302 of locking body 300 inserted into 03
It can be seen that these are engaged with the upper sides of the connector terminal placement holes in both walls constituting the notch 203.
In addition, the recessed portion 20 at the tip of the inner base 200
It can be seen that a gap 12A larger than the pin terminal insertion hole 401 is formed at the tip of the inner base 200 by contacting the tip wall 403 of the outer base 400 having the inlet pin terminal insertion hole 401. inner base 200
It can be seen that the rear end is held within the outer base 400 by engagement between a pair of locking walls 406A and 406B. Further, the flat plate portion 103 of the connector terminal 100 is held between the bottom of the placement hole of the inner base 200 and the bottom of the leg piece 305 of the locking body 300, and the connector terminal 100 is held movably within the placement hole 202. I can understand. Furthermore, a pair of locking walls 406 of the outer base 400
Outlet port 4 formed by engagement of A and 406B
08, 410, it can be seen that the connector terminal 100, the cord connecting portion, and one end of the cord 10 are covered.

As shown in FIG. 1, a connector main body having a cord protection part is integrally molded from the rear end of the connector tip part (connector terminal holding part) 12 assembled in this way to the cord end, using PVC resin or the like.
The connector body is located in the groove 41 of the outer base 400.
2,415, which strengthens the connection with the base. In addition, each outlet 4
Since the insulated wire core of the cord 10 is interposed in the wires 08 and 410, the connecting portion between the connector terminal 100 and the cord 10 is not filled with connector body molding resin.

The power connector of this example is the inner base 2
At the periphery of the pin terminal insertion hole 207 of the connector tip 12, which is composed of the outer base 400 and the outer base 400,
Pin terminal insertion holes 207, 4
Since the gap 12A larger than 01 is provided, the surface distance and area from the tip of the connector terminal 100 to the connector tip 12 are large, and abraded metal powder generated when the connector terminal 100 and the pin terminal of the inlet are inserted and removed is removed during insertion and removal. Twisted recessed portion 209
They fall and accumulate, making it difficult for them to adhere to the pin terminal insertion slot. In addition, even if the metal powder adheres, the adhesion density of the metal powder decreases due to the large surface distance and area as described above, so the metal powder causes sparks to be generated between each terminal and between each terminal and the connector tip 12. It is possible to eliminate this problem and improve the withstand voltage. In addition, since the inside of the connector tip 12 is configured by the contact between the inner base 200 and the outer base 400, the connector tip 12
could be easily processed and created. For example, in a structure in which the connector tip 12 is integrally molded as a single insulator, it is difficult to create a shape having a large internal space like the groove 12A of the present invention.

In addition, the present invention can satisfy the overload test and insertion/extraction test of the IEC standard (rated voltage 250V) due to the following configuration and operation.

Connector tip (connector terminal holding part) 12
Since the inner base 200 and the outer base 400 have a double structure, the thickness of each is thinner (the dimension in the thickness direction of the connector insulator remains the same), and the elastic force is increased, so the outer periphery of the connector tip 12 is reduced. The insulation will not crack or chip even if subjected to impact.
We were able to improve the overall strength. Also,
The integrally molded inner base 200 arranges and holds the connector terminal 100 in a predetermined position, and the outer base 400 covers the connection between the connector terminal 100 and the cord 10, thereby improving insulation. was completed. Further, the inner base 200 into which the connector terminal 100 has been inserted may be inserted into the outer base 400 and engaged with the connector tip 12.
It was easy to assemble.

A pair of live current terminals are arranged on the bottom side of the hexagonal, substantially trapezoidal inner base 200, and one earth terminal is arranged on the top side of the inner base 200 in a substantially triangular shape, and each terminal is held by the inner base 200.
The locking body 300 to be inserted and locked into the notch 203 of the inner base 200 is formed into a substantially U-shape, and the flat plate portion 103 of each terminal is inserted into the notch 203 of the inner base 200.
By holding the bottom of the locking body 300, the pair of legs 305 of the locking body 300, and the bottom of the recess 209, each terminal can be placed in each approximately triangular part (at a predetermined position).
Since there is only one point for holding the terminals, movement of each terminal can be allowed. Further, the connector terminal 100 has its tip connected to the peripheral protrusion 208 of the inner base 200.
The rear end is surrounded by the locking body 300 and the surrounding wall is surrounded by the peripheral wall of the terminal placement hole, and the surrounding has a margin to allow the movement of the connector terminals 100, so that each connector terminal 100 is placed in the inlet. It can be made movable within the arrangement hole to follow variations in the arrangement dimensions of the pin terminals.

Connector terminal 100 on inner base 200
Since the locking body 300 is inserted and locked in the cutout portion 203, the connector terminal 100 can be easily inserted and held, and after the insertion and locking,
Connect the cord to the connector terminal 100, insert it into the outer base 400, and lock it on the outer base 400.
A pair of locking walls 406A, 4 provided at the rear end of 0
06B at the thin wall portion 405 and fitting and locking the engagement arm 411, the workability is good.

The connection portion and cord end of the connector terminal 100 are connected to the pair of locking walls 40 of the outer base 400.
Since the outer periphery is covered by the outlet ports 408 and 410 formed by the fitting and locking of the connectors 6A and 406B, the connector body molding resin is not filled into the connection portion and the cord end, and the connection portion and the cord end are not filled with the connector body molding resin. The degree of freedom of the connector terminal 100 is not restricted by the end.

[Effect of idea]

As explained above, the power connector of the present invention has a connector main body composed of a connector terminal holding part that holds a connector terminal, and a cord holding part that holds a cord connected to the connector terminal, and The connector terminal holding part is composed of a double insulating base of an inner base and an outer base, and the terminal is located in front of the terminal arrangement hole of the inner base when the terminal of the equipment inlet and the terminal connection part of the connector terminal are inserted and removed. Since grooves were formed for depositing abrasion metal powder, it was possible to prevent arcing caused by insertion and removal of pin terminals, and to improve withstand voltage.

[Brief explanation of the drawing]

FIGS. 1a and 1b are diagrams showing a power connector according to an embodiment of the present invention. FIG. 2a is an exploded perspective view showing a state before the connector terminal, inner base, and locking body are inserted and fitted. FIG. 2b is a perspective view of the assembly shown in FIG. 2a. FIG. 2c is a perspective view of the outer base before the inner base with the cord connected to the connector terminal is inserted. FIG. 2d is a perspective view of the completed assembly shown in FIG. 2c, and FIG. 3 is a perspective view taken along the line BB in FIG. 2d. Fourth
The figure shows the equipment inlet. FIG. 5a is a diagram showing a conventional power connector. Figure 5b is A of Figure 5a.
-A sectional view. Explanation of symbols, 10... Code, 11... Pin terminal insertion hole, 12... Connector tip, 12A...
Groove, 13... Connector main body, 14... Connector insulator, 15... Cord end placement part, 16... Connector terminal placement part, 17... Locking body, 18... Conductor, 19... Connection part, 20... Connector terminal, 1
00...Connector terminal, 101...Contact part, 10
2... Punching hole, 103... Flat plate part, 104...
Cord connection crimp piece, 200...Inner base,
201... Live current terminal arrangement hole, 202... Earth terminal arrangement hole, 203... Notch, 204, 20
5... Wall, 206... Guide groove, 207... Pin terminal insertion hole, 208... Peripheral protrusion, 209... Recessed portion, 300... Locking body, 301... Guide protrusion, 302... Engaging protrusion , 304...Abutment recess,
305...Leg piece, 400...Outer base, 4
01...Pin terminal insertion hole, 402...Accommodating part, 4
03... Tip wall, 404... Peripheral wall, 405... Thin wall portion, 406A, 406B... Locking wall, 407...
...Abutting surface, 408...Outlet, 409...Protrusion,
410...Outlet port, 411...Engagement arm, 41
2...Groove, 413...Recess, 414...Protrusion, 4
15...Groove, 416...Engaging protrusion, 417...Protrusion, 500...Inlet, 501...Pin terminal, 502...Inlet body, 503...Fitting recess, 504...Screw through hole, 505 ...Fixed piece.

Claims (1)

[Claims for Utility Model Registration] A connector terminal holding part that holds a connector terminal and a cord holding part that holds a cord connected to the connector terminal, and is inserted and fitted into an equipment inlet attached to an electrical equipment. , a power supply connector that supplies power to electrical equipment through the inlet, wherein the connector terminal holding section includes an inner base that arranges and holds the connector terminal in a predetermined position, a tip portion into which the inner base is inserted, and an outer base having a rear end portion that protects a cord connecting portion that connects the connector terminal and the cord; and a connector body formed by integral molding of plastic from the rear end of the outer base of the connector terminal holding portion to the cord end. , the connector terminal has a crimping part for crimping the cord conductor, a terminal connecting part into which the terminal of the equipment inlet is inserted and connected, and a flat plate part located between the crimping part and the connecting part, and the outer base The inner base has an outlet for passing the cord insulated core and having a gap between the cord and the cord insulated core to prevent the connector terminal of the plastic from filling the cord connecting portion; It has a terminal arrangement hole that accommodates the terminal connection part of the connector terminal and has a gap between the terminal connection part and the terminal connection part that allows movement of the terminal connection part, and a terminal arrangement hole that accommodates the terminal connection part of the connector terminal and has a gap between the terminal connection part and the terminal connection part. A power connector characterized in that a groove is formed in which abrasion metal powder generated by insertion and removal of the terminal of the device inlet and the terminal connection portion is deposited through a locking protrusion that engages with a tip of the terminal connection portion. .