TW201519736A - Fixture for circuit board - Google Patents

Abstract

A fixture used to install a sub-circuit board to a main circuit board. The fixture includes a main positioning plate, a peripheral positioning plate and a guiding frame. The main positioning plate fixes the main circuit board. The peripheral positioning plate fixes the sub-circuit board. The guiding frame is fixed to the main positioning plate. The peripheral positioning plate can assist and insert the sub-circuit board to the main positioning plate.

Description

Circuit board mounting fixture

The present invention relates to a jig, and more particularly to a jig for mounting a circuit board.

With the development of technology, more and more data needs to be processed by computers, and the number of processors in such computers is increasing. At this time, the processor can be designed according to the requirements to reduce the CPU load and improve the data processing capability, for example, using the sub-board to expand the CPU and the memory, thereby improving the data processing capability and the operation speed of the host. The conventional sub-board is directly plugged into the motherboard by hand. The sub-board is equipped with electronic components such as a CPU and a memory. When the plug-in is directly connected, the sub-board is easily offset to make the board and the sub-board. The electronic components can cause scratches, which can cause damage to the electronic components after installation.

In view of the above, it is necessary to provide a mounting jig that prevents a sub-board from damaging electronic components during installation.

A circuit board mounting jig for inserting a sub-board into a main circuit board, the circuit board mounting jig comprising a main board positioning board, a sub board positioning board and a guiding frame, wherein the main board positioning board is used for Fixing the main circuit board, the sub-board positioning board is used for fixing the sub-board, the guiding frame is fixed to the main board positioning board, and the sub-board positioning board can be along the guiding frame The direction of the motherboard positioning plate slides to connect the sub-board to the main circuit board.

Preferably, the sub-board positioning plate comprises a positioning pin and a plate body, the positioning pin is fixed to the plate body, the positioning pin comprises a receiving body, a push rod and a pin, and the receiving body is provided with a receiving groove. The push rod is connected to the pin, and the pin is received in the receiving body and is movable along the receiving groove by the push rod.

Preferably, the board body is provided with a first positioning hole, the sub circuit board is provided with a second positioning hole, and the pin includes a force receiving portion and a supporting portion, when the sub circuit board is fixed on the sub board When the positioning plate is positioned, the supporting portion passes through the first positioning hole and the second positioning hole, and the connecting end of the force receiving portion and the supporting portion interferes with the daughter board circuit board.

Preferably, the sub-board positioning plate further includes a support bar, the support bar is fixed to the plate body, and the support bar is in contact with the guide frame.

Preferably, the motherboard positioning plate includes a motherboard screw and a motherboard mounting plate, the motherboard screw includes a connecting portion and a locking portion, and the main circuit board is provided with a third positioning hole, the motherboard mounting plate a fixing hole is provided, the fixing hole includes a rectangular introduction hole and a triangular limiting groove, and the connecting portion passes through the third positioning hole and slides from the introduction hole into the limiting slot, the lock The buckle locking hole is at the limiting slot.

Preferably, a cross-sectional area of the locking portion is larger than a cross-sectional area of the connecting portion, smaller than a cross-sectional area of the guiding hole, a cross-sectional area of the locking portion is larger than a cross-sectional area of the limiting slot, and a cross-sectional area of the connecting portion Less than the cross-sectional area of the limiting slot.

Preferably, the motherboard positioning plate further includes a motherboard positioning frame, and the motherboard mounting plate is fixed to the motherboard positioning frame.

Preferably, the motherboard positioning plate further includes a motherboard positioning block, the motherboard positioning block is rotatably connected to the motherboard positioning frame, and the motherboard positioning block is opposite to the sub-board to block the The motherboard screws are removed from the fixing holes.

Preferably, the sub-board positioning plate further includes a first sub-board positioning block, the board body includes a first protrusion, and the first sub-board positioning block is located on a side of the first protrusion, the first The sub-board positioning block is rotatably connected to the board body, and the first sub-board positioning block is in conflict with the sub-board.

Preferably, the sub-board positioning plate further includes a second sub-board positioning block, the board body includes two second protrusions and is provided with a sliding slot, and the second sub-board positioning block is located at the two second protrusions Between the two sub-board positioning blocks, the second sub-plate positioning block can slide along the sliding slot to interfere with the sub-board.

Compared with the prior art, the above-mentioned circuit board mounting jig can accurately position the main circuit board and the sub circuit board when the main circuit board is connected with the sub circuit board, thereby preventing the motherboard expansion card from damaging the electronic components during the installation process.

1 is an exploded perspective view of a preferred embodiment of a circuit board mounting jig of the present invention.

2 is an exploded perspective view of a daughter board positioning plate of the circuit board mounting jig of FIG. 1.

3 is an exploded perspective view of a motherboard positioning plate of the circuit board mounting jig of FIG. 1.

4 is an enlarged view of a motherboard screw of the circuit board mounting jig of FIG. 1.

FIG. 5 is an assembled, isometric view of the circuit board mounting jig of FIG. 1. FIG.

6 is an exploded perspective view of a sub-board positioning plate and a sub-circuit board of the circuit board mounting jig of FIG. 1.

7 is an exploded perspective view of the main board positioning plate and the main circuit board of the circuit board mounting jig of FIG. 1.

FIG. 8 is a schematic view showing the process of installing the sub-board and the main circuit board of the circuit board mounting jig of FIG. 1. FIG.

FIG. 9 is a schematic view of the circuit board mounting jig of FIG. 1 during the disassembly process.

Referring to FIG. 1 and FIG. 8 , a circuit board mounting fixture includes a daughter board positioning board 10 , two guiding frames 20 , and a motherboard positioning board 30 . The board mounting fixture is used to plug a sub-board 40 with a main board 50. The main circuit board 50 can be an electronic device motherboard, and the sub-board 40 can be a motherboard expansion card. The sub-board 40 can be plugged into the main circuit board 50 through a QPI (Quick Path Interconnect) interface.

Each of the guide frames 20 includes a column 22 and a connecting block 26 extending from the column 22, and the column 22 is provided with a guiding groove 24. The two guide frames 20 are fixed to both sides of the motherboard positioning plate 30 by the connecting block 26 .

Referring to FIG. 2 , the daughter board positioning board includes a board body 12 , a positioning pin 14 , a first sub board positioning block 16 , a second sub board positioning block 18 , and a support bar 19 . The plate body 12 includes a first protrusion 122 and two second protrusions 123, and is provided with a sliding slot 124, an opening 126 and a plurality of first positioning holes 128. The sliding slot 124 is located at the two second protrusions 123. between.

The positioning pin 14 includes a receiving body 142, a push rod 146 and a pin 148. The push rod 146 is connected to the pin 148. The pin 148 includes a receiving portion 1484 and a supporting portion. The housing 142 is provided with a receiving slot 1420. The pin 148 is received in the receiving body 142 and can be moved along the receiving slot 1420 by the push rod 146. The positioning pin 14 is fixed to the receiving pin 14 The plate body 12.

The first sub-board positioning block 16 is rotatably connected to the board body 12 and located on one side of the first protrusion 122. The second sub-board positioning block 18 is connected to the board body 12 and located at the two second parts. Between the protrusions 123, the second sub-plate positioning block 18 can slide along the sliding slot 124. The support bar 19 includes a connecting hole 192 , and the support bar 19 is fixed to the plate body 12 through the connecting hole 192 .

Referring to FIG. 3 and FIG. 4 , the motherboard positioning board 30 includes a motherboard mounting board 32 , a motherboard positioning frame 34 , a motherboard positioning block 36 , and a plurality of motherboard screws 38 . The main board mounting plate 32 is provided with a fixing hole 320. The fixing hole 320 includes an introduction hole 322 and a limiting slot 324. The limiting slot 324 extends from one side of the introduction hole 322. The motherboard positioning block 36 is rotatably coupled to the motherboard locator 34. The motherboard screw 38 includes a fixing portion 380 , a connecting portion 382 and a locking portion 384 . The cross-sectional area of the locking portion 384 is larger than the cross-sectional area of the connecting portion 382 and smaller than the cross-sectional area of the guiding hole 322, and the cross-sectional area of the locking portion 384 is larger than the cross-sectional area of the limiting slot 324. The cross-sectional area of the connecting portion 382 is smaller than the cross-sectional area of the limiting groove 324.

Referring to FIG. 5 to FIG. 7 , when the sub-board 40 is fixed, the sub-board 40 is placed on the side of the board 12 of the sub-board positioning board 10, and the push rod 146 of the positioning pin 14 is pushed. The pin 148 is passed through the first positioning hole 128 of the board body 12 and the second positioning hole 42 provided in the sub-board 40, so that the force receiving portion 1484 of the pin 148 and the sub-sub. The circuit board 40 is in conflict. The first sub-board positioning block 16 is rotated to make the first sub-board positioning block 16 in conflict with the sub-board 40. The second sub-board positioning block 18 is slid, so that the second sub-board positioning block 18 is in contact with the sub-board 40, so that the sub-board 40 is fixed to the sub-board positioning board 10.

When the main circuit board 50 is fixed, the main circuit board 50 is placed on the motherboard mounting board 32, and the connecting portion 382 of the main board screw 38 passes through the third positioning hole 52 and from the The guiding hole 322 is slid into the limiting slot 324 , and the locking portion 384 is locked at the limiting slot 324 . Rotating the motherboard positioning block 36 such that the motherboard positioning block 36 abuts the main circuit board 50 to prevent the motherboard screw 38 from being removed from the fixing hole 320, thereby fixing the main circuit board 50 The board 30 is positioned on the motherboard.

Referring to FIG. 8 , when the sub-board 40 is inserted, the sub-board 40 is fixed to the sub-board positioning board 10 , and the two ends of the board 12 of the sub-board positioning board 10 are received in the guide frame. The guiding groove 24 of the 20 is moved along the guiding frame 20 to the main board positioning frame 34 until the supporting strip 19 and the guiding frame 20 are in contact with each other. At this time, the insertion portion of the lower end of the sub-circuit board 40 is just inserted into the main circuit board 50. Inside the slot.

Referring to FIG. 9 , when the circuit board mounting jig is removed, the push rod 146 of the positioning pin 14 is pushed to the pin 148 from the first positioning hole 128 and the sub circuit board 40 of the board body 12 . The second positioning hole 42 is pulled out, the first sub-board positioning block 16 is rotated, and the second sub-board positioning block 18 is slid to separate the sub-board 40 from the sub-board positioning board 10, The opening 126 of the plate body 12 is biased to move the sub-board positioning plate 10 along the guide frame 20 away from the motherboard positioning plate 30. Rotating the motherboard positioning block 36, and moving the connected main circuit board 50 and the sub-board 40 to slide the connecting portion 382 of the motherboard screw 38 from the limiting slot 324 into the introduction hole 322. The connected main circuit board 50 and the sub-board 40 are removed.

The circuit board mounting jig can accurately position the main circuit board 50 and the sub circuit board 40 when the main circuit board 50 is connected to the sub circuit board 40, preventing the main circuit board and the sub Damage to electronic components during board insertion.

10‧‧‧Slate board positioning board

12‧‧‧ board

122‧‧‧First bulge

123‧‧‧second bulge

124‧‧‧Chute

126‧‧‧ openings

128‧‧‧First positioning hole

14‧‧‧Locating pin

142‧‧‧ hull

1420‧‧‧ receiving trough

146‧‧‧Put

148‧‧ ‧ pin

1482‧‧‧Support

1484‧‧‧ Force Department

16‧‧‧First daughter board positioning block

18‧‧‧Second daughterboard positioning block

19‧‧‧Support bars

192‧‧‧connection hole

20‧‧‧ Guide frame

22‧‧‧Cylinder

24‧‧‧ Guide groove

26‧‧‧Connecting block

30‧‧‧ motherboard positioning board

32‧‧‧ motherboard mounting board

320‧‧‧Fixed holes

322‧‧‧Introduction hole

324‧‧‧ Limit slot

34‧‧‧ motherboard positioning frame

36‧‧‧ motherboard positioning block

38‧‧‧ motherboard screws

380‧‧‧ fixed department

382‧‧‧Connecting Department

384‧‧‧Locking Department

40‧‧‧Sub Board

42‧‧‧Second positioning hole

50‧‧‧ main board

52‧‧‧third positioning hole

no

10‧‧‧Slate board positioning board

20‧‧‧ Guide frame

30‧‧‧ motherboard positioning board

Claims (10)

A circuit board mounting jig for inserting a sub-board into a main circuit board, the circuit board mounting jig comprising a main board positioning board, a sub board positioning board and a guiding frame, wherein the main board positioning board is used for Fixing the main circuit board, the sub-board positioning board is used for fixing the sub-board, the guiding frame is fixed to the main board positioning board, and the sub-board positioning board can be along the guiding frame The direction of the motherboard positioning plate slides to connect the sub-board to the main circuit board. The circuit board mounting jig of claim 1, wherein the sub-board positioning plate comprises a positioning pin and a plate body, the positioning pin is fixed to the plate body, and the positioning pin comprises a receiving body and a push rod. And a pin, the receiving body is provided with a receiving groove, the push rod is connected to the pin, and the pin is received in the receiving body and is movable along the receiving groove by the push rod . The circuit board mounting jig of claim 2, wherein the board body is provided with a first positioning hole, the sub circuit board is provided with a second positioning hole, and the pin comprises a force receiving portion and a supporting portion. When the sub-board is fixed on the sub-board positioning plate, the supporting portion passes through the first positioning hole and the second positioning hole, and the connecting end of the force receiving portion and the supporting portion It is in conflict with the daughter board board. The circuit board mounting jig of claim 1, wherein the sub-board positioning plate further comprises a support bar, the support bar is fixed to the plate body, and the support bar is in contact with the guide frame. The circuit board mounting jig of claim 1, wherein the motherboard positioning plate comprises a motherboard screw and a motherboard mounting plate, and the motherboard screw includes a connecting portion and a locking portion, the main circuit board a third positioning hole is provided, the motherboard mounting plate is provided with a fixing hole, the fixing hole includes a rectangular introduction hole and a triangular limiting slot, the connecting portion passes through the third positioning hole and from the The lead-in hole slides into the limiting slot, and the latching portion is locked at the limiting slot. The circuit board mounting jig according to claim 5, wherein a cross-sectional area of the locking portion is larger than a cross-sectional area of the connecting portion, smaller than a cross-sectional area of the introduction hole, and a cross-sectional area of the locking portion is larger than The cross-sectional area of the limiting slot, the cross-sectional area of the connecting portion is smaller than the cross-sectional area of the limiting slot. The circuit board mounting jig of claim 1, wherein the motherboard positioning plate further comprises a motherboard positioning frame, and the motherboard mounting plate is fixed to the motherboard positioning frame. The circuit board mounting jig of claim 1, wherein the motherboard positioning plate further comprises a motherboard positioning block, wherein the motherboard positioning block is rotatably connected to the motherboard positioning frame, the motherboard The positioning block abuts the main circuit board to prevent the motherboard screw from being removed from the fixing hole. The circuit board mounting jig of claim 1, wherein the sub-board positioning plate further comprises a first sub-board positioning block, the plate body comprises a first protrusion, and the first sub-board positioning block is located The first sub-board positioning block is rotatably connected to the board body, and the first sub-board positioning block is in contact with the sub-board. The circuit board mounting jig of claim 1, wherein the sub-board positioning plate further includes a second sub-board positioning block, the plate body includes two second protrusions and is provided with a chute, Two sub-board positioning blocks are located between the two second protrusions, and the second sub-board positioning block can slide along the sliding slot to interfere with the sub-board.