CN111465249A

CN111465249A - Slot type PCB circuit board assembly

Info

Publication number: CN111465249A
Application number: CN202010345795.5A
Authority: CN
Inventors: 闻国平
Original assignee: Shenzhen Mingshitang Trading Co ltd
Current assignee: JIANGSU WELM TECHNOLOGY Co.,Ltd.
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-07-28
Anticipated expiration: 2040-04-27
Also published as: CN111465249B

Abstract

The invention relates to a slot-in type PCB circuit board assembly. The slot-in type PCB circuit board assembly comprises a circuit board body, an installation base and two shielding frames, wherein the installation base comprises two side wall plates which are oppositely arranged, a slot is formed between the two side wall plates, two clamping plates are arranged in the slot in a sliding mode, the two clamping plates are connected to the two side wall plates through tension springs respectively, and the circuit board body is inserted into the slot and clamped between the two clamping plates. The slot-type PCB circuit board assembly is convenient for preventing dust from entering the slot, and improves the dustproof effect.

Description

Slot type PCB circuit board assembly

Technical Field

The invention relates to a slot-in type PCB circuit board assembly.

Background

A printed circuit board (pcb), which is also called a pcb, is a supporting board for electronic components. In order to support the PCB more firmly, the PCB may be fixed by using a socket structure. However, such a slot-type circuit board is prone to dust falling into the slot, and the use of the slot-type circuit board is easily affected by the dust.

Disclosure of Invention

Accordingly, there is a need for a socket-type PCB circuit board assembly that facilitates dust prevention.

The utility model provides a slot-in type PCB circuit board subassembly, including the circuit board body, installation base and two shield the frame, the installation base includes the lateral wall board of two relative settings, form the slot between the two lateral wall boards, it is provided with two splint to slide in the slot, two splint are connected respectively on two lateral wall boards through the extension spring, the circuit board body inserts and locates in the slot and press from both sides and locate between two splint, two circular shape through-holes have been seted up on every lateral wall board, every through-hole department is provided with the locking structure, two shield the frame and install respectively in the top of two lateral wall boards and lie in the relative both sides of circuit board body respectively, two locking structures on every lateral wall board are used for locking the corresponding frame that shields, shield the frame including the flexible sheet that makes progress the arc and extend, the top subsides of.

In one embodiment, each locking structure comprises a locking bolt and a sealing plate, the locking bolt comprises a polished rod and a bolt head coaxially fixed at one end of the polished rod, the polished rod is inserted into the through hole and abuts against the corresponding clamping plate, and the shielding frame and the sealing plate are respectively enclosed on the upper side and the lower side of the polished rod.

In one embodiment, the shielding frame further comprises a flat plate extending downwards from the bottom of the flexible plate, the flat plate is attached to the side wall plate, an upper semicircular groove is concavely formed in the center of the bottom of the flat plate, a lower semicircular groove is concavely formed in the center of the upper portion of the sealing plate, and the upper semicircular groove and the lower semicircular groove surround the upper side and the lower side of the polish rod.

In one embodiment, two opposite sides of each through hole are respectively provided with a screw block in a protruding mode, one side, facing the through hole, of each screw block is provided with a concave arc thread surface, the bolt head is in a disc shape, the periphery of the bolt head is provided with a screw peripheral surface, and the screw peripheral surfaces are mutually screwed with the concave arc thread surfaces of the two screw blocks.

In one embodiment, the diameter of the bolt head is larger than that of the through hole, the diameter of the through hole is larger than that of the polished rod, an upper clamping groove and a lower clamping groove are concavely arranged on one side surface of each screw joint block facing the side wall plate, the bottom surface of each upper clamping groove is a plane, and the upper clamping grooves penetrate through two opposite sides of each screw joint block.

In one embodiment, the lower portion of the flat plate is inserted into the upper clamping groove, the bottom surface of the flat plate abuts against the bottom surface of the upper clamping groove, the lower portion of the lower clamping groove penetrates through the bottom surface of the screwing block, the upper portion of the lower clamping groove is communicated with the upper clamping groove, one side of the lower clamping groove penetrates through the concave arc thread surface of the screwing block, the upper portion of the sealing plate is inserted into the lower clamping grooves of the two screwing blocks, and the top surface of the sealing plate abuts against the bottom surface of the flat plate.

In one embodiment, an inclined abutting surface is formed on one side, away from the side wall plate, of the upper clamping groove, and the distance between the inclined abutting surface and the surface of the side wall plate is gradually increased along the vertical upward direction.

In one embodiment, the shelter further comprises L-shaped shelter plates, L-shaped shelter plates are rotatably connected to the upper edge of the flat plate through rotating shafts, and L-shaped shelter plates are used for sheltering the locking structures.

In one embodiment, the side surface of the bolt head facing the side wall plate is abutted against the flat plate and the sealing plate, one side of the bolt head away from the polish rod is convexly provided with a driving convex part, and the driving convex part is concavely provided with a cross-shaped driving groove.

In one embodiment, two of the tension springs are mounted on each clamping plate, two L-shaped baffles are further provided on each side wall plate, and each L-shaped baffle is positioned below the end of the flat plate.

When the slot type PCB circuit board assembly is assembled, the circuit board body is inserted between the two clamping plates, then the two shielding frames are arranged at the tops of the two side wall plates, the top ends of the two flexible plates are attached to the circuit board body, and each shielding frame is locked by the two locking structures, so that the installation is completed. Because in this slot-in type PCB circuit board subassembly, two shield the frame and install respectively in the top of two lateral wall boards and lie in the relative both sides of circuit board body respectively, the top subsides of flexonics board are established and are supported on the circuit board body, consequently can utilize two flexonics boards to keep off one side of locating the circuit board body, keep off and locate the top of slot, can prevent that the dust from falling into the slot betterly, dustproof effect is better.

Drawings

Fig. 1 is an exploded perspective view of a slot-in PCB circuit board assembly according to an embodiment.

Fig. 2 is a side view of a partial structure of a slot-in PCB circuit board assembly of an embodiment.

Fig. 3 is a schematic perspective view of the slot-in PCB circuit board assembly shown in fig. 1 with the shielding frame removed.

Fig. 4 is a partially enlarged view of a portion a in fig. 1.

Fig. 5 is a partially enlarged view of fig. 3 at B.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention relates to a slot-in type PCB circuit board assembly. For example, the slot-in type PCB assembly includes a circuit board body, a mounting base and two shielding frames, the mounting base includes two side wall plates arranged oppositely, a slot is formed between the two side wall plates, and two clamping plates are slidably arranged in the slot. For example, two clamp plates are respectively connected to two side wall plates through tension springs, a circuit board body is inserted into the slot and clamped between the two clamp plates, and each side wall plate is provided with two circular through holes. For example, each through hole is provided with a locking structure, and the two shielding frames are respectively arranged at the tops of the two side wall plates and are respectively positioned at two opposite sides of the circuit board body. For example, two locking structures on each side wall panel are used to lock the corresponding shelter frame. For example, the shielding frame includes a flexible plate extending in an upward arc shape, and the top end of the flexible plate is attached to and abutted against the circuit board body.

Referring to fig. 1 to 5, a slot-in type PCB circuit board assembly includes a circuit board body 10, the mounting base 20 and the two shielding frames 30, the mounting base 20 includes two side wall plates 21 arranged oppositely, a slot 22 is formed between the two side wall plates 21, two clamping plates 23 are slidably arranged in the slot 22, the two clamping plates 23 are connected to the two side wall plates 21 through tension springs respectively, the circuit board 10 is inserted into the slot 22 and clamped between the two clamping plates 23, each side wall plate 21 is provided with two circular through holes 215, each through hole 215 is provided with a locking structure 40, the two shielding frames 30 are respectively mounted at the tops of the two side wall plates 21 and located at two opposite sides of the circuit board 10, the two locking structures 40 on each side wall plate 21 are used for locking the corresponding shielding frame 30, the shielding frame 30 includes a flexible plate 31 extending in an upward arc shape, and the top end of the flexible plate 31 is attached to and abutted to the circuit board 10.

For example, when the slot-in PCB circuit board assembly is assembled, the circuit board 10 is inserted between the two clamping plates 23, then the two shielding frames 30 are mounted on the top of the two side wall plates 21, the top ends of the two flexible plates 31 are attached to the circuit board 10, and then the two locking structures 40 are used to lock each shielding frame 30, thereby completing the mounting. Because in this slot-in type PCB circuit board assembly, two shield frame 30 are installed respectively in the top of two lateral wall boards 21 and are located the relative both sides of circuit board body 10 respectively, and the top subsides of flexure strip 31 are established and are supported on circuit board body 10, consequently can utilize two flexure strips 31 to keep off one side of locating circuit board body 10, keep off and locate the top of slot 22, can prevent that the dust from falling into in the slot 22 betterly, dustproof effect is better.

For example, in order to facilitate abutting against the clamping plate 23 and further locking the circuit board body 10, each locking structure 40 includes a locking bolt 41 and a sealing plate 42, the locking bolt 41 includes a polish rod 411 and a bolt head 412 coaxially fixed at one end of the polish rod 411, the polish rod 411 is inserted into the through hole 215 and abuts against the corresponding clamping plate 23, and the shielding frame 30 and the sealing plate 42 surround the upper and lower sides of the polish rod 411 respectively. The shielding frame 30 further includes a flat plate 32, the flat plate 32 extends downward from the bottom of the flexible plate 31, the flat plate 32 is attached to the sidewall plate 21, an upper semicircular groove 325 is concavely formed in the center of the bottom of the flat plate 32, a lower semicircular groove 421 is concavely formed in the center of the upper portion of the sealing plate 42, and the upper semicircular groove 325 and the lower semicircular groove 421 surround the upper and lower sides of the polish rod 411. The opposite sides of each through hole 215 are respectively provided with a convex screw block 43, one side of each screw block 43 facing the through hole 215 is provided with a concave arc thread surface 431, the bolt head 412 is in a disc shape, the periphery of the bolt head 412 is provided with a screw peripheral surface 4125, and the screw peripheral surface 4125 is mutually screwed with the concave arc thread surfaces 431 of the two screw blocks 43. The diameter of the bolt head 412 is larger than the diameter of the through hole 215, and the diameter of the through hole 215 is larger than the diameter of the polish rod 411 (e.g., slightly larger than the diameter of the polish rod 411, by about 0.9-1.2 mm). The circuit board body 10 is locked by inserting the polish rod 411 into the through hole 215 and abutting against the clamping plate 23, and then screwing the polish rod onto the two screw blocks 43 by using the bolt heads 412.

For example, to facilitate sealing the through hole 215, an upper engaging groove 432 and a lower engaging groove 433 are recessed on a surface of each screw block 43 facing the side wall plate 21, a bottom surface of the upper engaging groove 432 is a plane, and the upper engaging groove 432 penetrates through opposite sides of the screw block 43. The lower portion of the flat plate 32 is inserted into the upper clamping groove 432, the bottom surface of the flat plate 32 abuts against the bottom surface of the upper clamping groove 432, the lower portion of the lower clamping groove 433 penetrates through the bottom surfaces of the screwing blocks 43, the upper portion of the lower clamping groove 433 is communicated with the upper clamping groove 432, one side of the lower clamping groove 433 penetrates through the concave arc thread surface 431 of the screwing blocks 43, the upper portion of the sealing plate 42 is inserted into the lower clamping grooves 433 of the two screwing blocks 43, and the top surface of the sealing plate 42 abuts against the bottom surface of the flat plate 32. The top surface of the sealing plate 42 abuts against the bottom surface of the flat plate 32, and the polish rod 411 is surrounded by the upper semicircular groove 325 and the lower semicircular groove 421, thereby sealing the through hole 215.

For example, in order to shield the locking structure 40 to improve the aesthetic appearance, an inclined abutting surface 4328 is formed on one side of the upper clamping groove 432 away from the side wall plate 21, the distance between the inclined abutting surface 4328 and the surface of the side wall plate 21 is gradually increased in a vertically upward direction, the shielding frame 30 further includes a L-shaped shielding plate 33, the L-shaped shielding plate 33 is rotatably connected to the upper edge of the flat plate 32 through a rotating shaft, the L-shaped shielding plate 33 is used for shielding the locking structure 40, the bolt head 412 abuts against the flat plate 32 and the sealing plate 42 towards one side surface of the side wall plate 21, a driving protrusion 413 is convexly provided on one side of the bolt head 412 away from the polish rod 411, a cross-shaped driving groove 414 is concavely provided on the driving protrusion 413, two of the above-mentioned tension springs are mounted on each clamping plate 23, two L-shaped baffles 218 are further provided on each side wall plate 21, each L-shaped baffle 218 is arranged below the end of the flat plate 32, the bolt head 33 is arranged on the flat plate 32, and the locking plate 33 is turned over L-shaped shielding structure 33 after locking to shield the locking structure 40, so as to improve the aesthetic appearance, and to prevent dust from falling into the cross-shaped driving groove 412, and to facilitate the driving.

For example, it is particularly important that the circumference of the polish rod 411 is held against the bottom surface of the upper semicircular groove 325 and the bottom surface of the lower semicircular groove 421, so as to seal the periphery of the through hole 215 by the flat plate 32 and the sealing plate 42, the thickness of the flat plate 32 is equal to the thickness of the sealing plate 42, in order to facilitate the sealing plate 42 to tightly hold the lower portion of the polish rod 411, the mounting plates 44 are disposed in directions away from each other for the two screw-engaging blocks 43, the side wall plates 21 are recessed into opposite sides of each through hole 215, respectively, with bar-shaped sliding grooves 216, the bar-shaped sliding grooves 216 extending in the vertical direction, the two bar-shaped sliding grooves 216 are disposed below the two mounting plates 44, the bottom of the sealing plate 42 is provided with lateral operating bars 423, opposite ends of the lateral operating bars 423 protrude out of opposite sides of the sealing plate 42, the opposite ends of the lateral operating bars 423 are provided with elastic pull bars (not shown), the top ends of the two elastic pull bars are connected to the two mounting plates 44, the lateral operating bars 423 are vertically protruded with two guide posts 4239, the two guide posts 4239 are disposed on opposite sides of the lateral operating bars 42, the two guide posts L, the two guide bars are slidably inserted into the two grooves 32, the two guide posts of the sealing plate head retaining plates 23, the two sealing plate 32 are inserted into the two grooves 32, the two rigid retaining bars 32, the two retaining bars are formed by the rigid retaining plates, the rigid retaining bars, the retaining plates 32, the retaining bars 23, the retaining bars are inserted into the retaining bars 21, the retaining plates 32, the retaining plates are inserted into the retaining plates 32, the retaining bars 21, the retaining bars are inserted into the retaining bars, the retaining bars 21, the retaining bars are inserted into the retaining grooves 32, the retaining bars 32, the retaining plates 23, the retaining plates are inserted into.

When disassembly and maintenance are needed, the L-shaped shielding plate 33 is turned over reversely, the bolt head is used for rotating and withdrawing under the action of external force, the sealing plate 42 is used for pushing and rising under the action of external force, so that the material at the bottom of the lower semicircular groove 421 is deformed, the material at two opposite sides of the lower semicircular groove 421 is used for pushing the flat plate 32 to rise so as to release the flat plate 32, the flat plate 32 is rotated under the action of the flexible plate 31 to be attached to the inclined abutting surface 4328 so as to release the flexible plate 31, the sealing plate 42 is also used for descending under the action of external force so as to release the locking bolt 41, the clamping plate 23 moves towards the side wall plate 21 under the action of two tension springs so as to push the polish rod 411 to eject outwards, the through hole 215 is larger than the size of the polish rod 411, so that the ejection and release of the polish rod 411 are facilitated, the sealing plate 42 can be lifted to abut against the inclined abutting surface 4328 under the condition that hard collision with the polish rod 411 is avoided through the material at the periphery of the lower semicircular groove 421, so that the through hole 215 can be operated by a worker.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a slot-in type PCB circuit board subassembly, a serial communication port, including the circuit board body, installation base and two shield the frame, the installation base includes two relative lateral wall boards that set up, form the slot between two lateral wall boards, be provided with two splint in the slot slidably, two splint are connected respectively on two lateral wall boards through the extension spring, the circuit board body inserts and locates in the slot and press from both sides and locate between two splint, two circular shape through-holes have been seted up on every lateral wall board, every through-hole department is provided with the locking structure, two shield the frame and install respectively in the top of two lateral wall boards and lie in the relative both sides of circuit board body respectively, two locking structures on every lateral wall board are used for locking the corresponding frame that shields, shield the frame and include the flexible slab that makes progress the arc and extend, the top subsides of.

2. The slot-in type PCB circuit board assembly of claim 1, wherein each locking structure comprises a locking bolt and a sealing plate, the locking bolt comprises a polish rod and a bolt head coaxially fixed at one end of the polish rod, the polish rod is inserted into the through hole and abuts against the corresponding clamping plate, and the shielding frame and the sealing plate surround the upper side and the lower side of the polish rod respectively.

3. The slot-in type PCB circuit board assembly of claim 2, wherein the shielding frame further comprises a flat plate extending downward from the bottom of the flexible plate, the flat plate is attached to the side wall plate, the bottom of the flat plate is recessed with an upper semicircular slot, the upper of the sealing plate is recessed with a lower semicircular slot, and the upper semicircular slot and the lower semicircular slot surround the upper and lower sides of the polish rod.

4. The slot-in type PCB circuit board assembly of claim 3, wherein two opposite sides of each through hole are respectively provided with a screw block in a protruding way, one side of each screw block facing the through hole is provided with a concave arc thread surface, the bolt head is in a disc shape, the periphery of the bolt head is provided with a screw peripheral surface, and the screw peripheral surfaces are mutually screwed with the concave arc thread surfaces of the two screw blocks.

5. The slot-in type PCB circuit board assembly of claim 4, wherein the diameter of the bolt head is larger than that of the through hole, the diameter of the through hole is larger than that of the light rod, an upper slot and a lower slot are concavely arranged on one side surface of each screw joint block facing to the side wall plate, the bottom surface of the upper slot is a plane, and the upper slot penetrates through two opposite sides of the screw joint block.

6. The slot-in type PCB circuit board assembly of claim 5, wherein the lower part of the flat plate is inserted into the upper slot and the bottom surface of the flat plate is supported on the bottom surface of the upper slot, the lower part of the lower slot is penetrated through the bottom surface of the screw block, the upper part of the lower slot is communicated with the upper slot, one side of the lower slot is penetrated through the concave arc thread surface of the screw block, the upper part of the sealing plate is inserted into the lower slots of the two screw blocks, and the top surface of the sealing plate is supported on the bottom surface of the flat plate.

7. The slot-in PCB circuit board assembly of claim 6, wherein a side of the upper slot away from the side wall plate is formed with an inclined abutting surface, and a distance between the inclined abutting surface and a surface of the side wall plate is gradually increased along a vertically upward direction.

8. The slot-in PCB circuit board assembly of claim 7, wherein the shield frame further comprises L-shaped shield plates, L-shaped shield plates are pivotally connected to the upper edge of the flat plate via a pivot shaft, and L-shaped shield plates are used to shield the locking structure.

9. The slot-in type PCB circuit board assembly of claim 8, wherein one side surface of the bolt head facing the side wall plate abuts against the flat plate and the sealing plate, one side of the bolt head away from the polish rod is convexly provided with a driving convex part, and the driving convex part is concavely provided with a cross-shaped driving slot.

10. The slot-in PCB circuit board assembly of claim 9, wherein two of said tension springs are mounted on each clamping plate, and two L shaped baffles are provided on each side wall plate, each L shaped baffle being positioned below the end of the flat plate.