CN111465249B

CN111465249B - Slot type PCB circuit board assembly

Info

Publication number: CN111465249B
Application number: CN202010345795.5A
Authority: CN
Inventors: 闻国平
Original assignee: Jiangsu Welm Technology Co ltd
Current assignee: JIANGSU WELM TECHNOLOGY Co.,Ltd.
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2021-01-29
Anticipated expiration: 2040-04-27
Also published as: CN111465249A

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 two relative lateral wall boards that set up, form the slot between two lateral wall boards, be provided with two splint that are parallel with the lateral wall board in the slot with sliding, 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 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 structure on every lateral wall board are used for locking the corresponding frame that shields, shield the frame and include the flexible sheet that upwards arc extends, the top subsides of flexible sheet.

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 shielding frame further comprises an L-shaped shielding plate, the L-shaped shielding plate is rotatably connected to the upper edge of the flat plate through a rotating shaft, and the L-shaped shielding plate is used for shielding the locking structure.

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, each clamping plate is provided with two tension springs, each side wall plate is further provided with two L-shaped baffles, and each L-shaped baffle is arranged below the end part 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 parallel to the side wall 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, a mounting base 20 and two shielding frames 30, the mounting base 20 includes two side wall plates 21 disposed opposite to each other, a slot 22 is formed between the two side wall plates 21, two clamping plates 23 parallel to the side wall plates are slidably disposed in the slot 22, the two clamping plates 23 are respectively connected to the two side wall plates 21 through tension springs, the circuit board body 10 is inserted into the slot 22 and clamped between the two clamping plates 23, each side wall plate 21 is formed 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 on the top of the two side wall plates 21 and are respectively located on opposite sides of the circuit board body 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, the top end of the flexible board 31 is attached to and abutted against the circuit board body 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 appearance, an inclined abutting surface 4328 is formed on a side of the upper engaging groove 432 away from the side wall plate 21, and a distance between the inclined abutting surface 4328 and the surface of the side wall plate 21 is gradually increased in a vertical upward direction. The shielding frame 30 further includes an L-shaped shielding plate 33, the L-shaped shielding plate 33 is rotatably connected to the upper edge of the flat plate 32 by a rotating shaft, and the L-shaped shielding plate 33 is used for shielding the locking structure 40. The side surface of the bolt head 412 facing the side wall plate 21 is abutted against the flat plate 32 and the sealing plate 42, a driving convex part 413 is convexly arranged on one side of the bolt head 412 far away from the polish rod 411, and a cross-shaped driving groove 414 is concavely arranged on the driving convex part 413. Two tension springs are mounted on each clamping plate 23, two L-shaped baffles 218 are further arranged on each side wall plate 21, and each L-shaped baffle 218 is arranged below the end part of the flat plate 32. By providing the L-shaped shielding plate 33 on the flat plate 32 and then turning over the L-shaped shielding plate 33 after locking to shield the locking structure 40, the aesthetic appearance is improved and dust can be prevented from falling onto the bolt head 412. The cross-shaped driving groove 414 on the driving protrusion 413 on the bolt head 412 facilitates the rotation of the bolt head 412 driven by a tool knife, thereby facilitating the locking and releasing actions.

For example, it is particularly important that the circumferential surface of the polish rod 411 abuts against the bottom surfaces of the upper semicircular groove 325 and the lower semicircular groove 421, thereby sealing the periphery of the through hole 215 with 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 utilize the sealing plate 42 to abut against the lower part of the polish rod 411, the two screwing blocks 43 are provided with mounting plates 44 in directions away from each other, the side wall plate 21 is provided with strip-shaped sliding grooves 216 in opposite two sides of each through hole 215, the strip-shaped sliding grooves 216 extend in the vertical direction, the two strip-shaped sliding grooves 216 are respectively located below the two mounting plates 44, the bottom of the sealing plate 42 is provided with a transverse operating strip 423, opposite ends of the transverse operating strip 423 protrude out of opposite two sides of the sealing plate 42 respectively, opposite ends of the transverse operating strip 423 are provided with elastic pulling strips (not shown) respectively, and top ends of the two elastic pulling strips are connected to the two mounting plates 44 respectively. The transverse operating bar 423 is further vertically provided with two guiding studs 4239, the two guiding studs 4239 are respectively located at two opposite sides of the sealing plate 42, and the two guiding studs 4239 are respectively slidably inserted into the two strip-shaped sliding grooves 216. During locking, the locking bolt 41 is inserted, the flat plate 32 is inserted into the two upper slots 432, the two L-shaped baffles 218 are used to support and position the two opposite ends of the flat plate 32, then the sealing plate 42 is released to make the two elastic holding strips pull the sealing plate 42 to move upwards and further abut against the bottom of the flat plate 32, and then the bolt head 412 is rotated to flatten the flat plate 32 and the sealing plate 42 by using the bolt head 412, so that the flat plate 32 is forced to drive the top end of the flexible plate 31 to abut against the side surface of the circuit board body 10. After that, the L-shaped shielding plate 33 is turned over. For example, the bottom of the lower half-round groove 421 is made of elastic material. The material on both sides of the lower half-round groove 421 is made of rigid material. For example, the opposite end walls of the slot 22 are respectively concavely provided with a guide groove, the opposite ends of each clamping plate 23 are respectively convexly provided with a guide bar, and the two guide bars are respectively slidably inserted into the two guide grooves to guide the clamping plates 23 to slide in the clamping grooves.

When the flexible plate 31 needs to be detached and maintained, the L-shaped shielding plate 33 is turned over reversely, the bolt head is used for rotating and retreating under the action of an external force, the sealing plate 42 is used for pushing and lifting under the action of the external force, so that the material at the bottom of the lower semicircular groove 421 is deformed, the flat plate 32 is pushed and lifted by the material at the two opposite sides of the lower semicircular groove 421 to release the flat plate 32, and the flat plate 32 rotates to be attached to the inclined abutting surface 4328 under the action of the flexible plate 31 to release the flexible plate 31. The sealing plate 42 is also used to descend by an external force to release the locking bolt 41, and the clamping plate 23 is moved toward the side wall plate 21 by two tension springs to push the polish rod 411 to pop outward. By providing the through-hole 215 larger than the size of the polish rod 411, the ejection release of the polish rod 411 is facilitated. By arranging the material of the peripheral surface of the lower semicircular groove 421, the sealing plate 42 can be pushed to rise to abut against the releasing flat plate 32 without hard collision with the polish rod 411, so as to allow the flat plate 32 to rotate to abut against the inclined abutting surface 4328, thereby releasing the flexible plate 31 and the circuit board body 10, and the elastic material of the bottom of the lower semicircular groove 421 is also convenient for sealing the through hole 215. The above operation may be performed by a hand of 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. A slot-inserting type PCB circuit board assembly is characterized by comprising 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 which are parallel to the side wall plates are arranged in the slot in a sliding manner, the two clamping plates are respectively connected to the two side wall plates through tension springs, the circuit board body is inserted in the slot and clamped between the two clamping plates, each side wall plate is provided with two circular through holes, each through hole is provided with a locking structure, 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, the two locking structures on each side wall plate are used for locking the corresponding shielding frame, each shielding frame comprises a flexible plate which extends in an upward arc shape, and the top end of the flexible plate is attached;

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, the shielding frame and the sealing plate are respectively enclosed on the upper side and the lower side of the polished rod, the shielding frame further comprises a flat plate, the flat plate extends downwards from the bottom of the flexible plate, the flat plate is attached to the side wall plate, an upper semicircular groove is concavely arranged in the center of the bottom of the flat plate, a lower semicircular groove is concavely arranged in the center of the upper portion of the sealing plate, the upper semicircular groove and the lower semicircular groove are enclosed on the upper side and the lower side of the polished rod, the shielding frame further comprises an L-shaped shielding plate, the L-shaped shielding plate is rotationally connected to the upper.

2. The slot-in type PCB circuit board assembly of claim 1, wherein the opposite sides of each through hole are respectively protruded with a screw block, one side of the screw block facing the through hole is formed with a concave arc thread surface, the bolt head is disc-shaped, the circumference of the bolt head is formed with a screw peripheral surface, and the screw peripheral surface is mutually screwed with the concave arc thread surfaces of the two screw blocks.

3. The slot-in type PCB circuit board assembly of claim 2, 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 provided on one side surface of each screw block facing the side wall plate, the bottom surface of the upper slot is a plane, and the upper slot penetrates through the opposite sides of the screw block.

4. The slot-in type PCB circuit board assembly of claim 3, 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.

5. The slot-in PCB circuit board assembly of claim 4, 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.

6. The slot-in type PCB circuit board assembly of claim 5, 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.

7. The slot-in PCB circuit board assembly of claim 6, wherein each clamping plate is provided with two of the tension springs, each side wall plate is further provided with two L-shaped baffles, and each L-shaped baffle is arranged below the end of the flat plate.