TWM454470U - Board fixing device and guide slot member thereof - Google Patents

Description

Plate fixing device and its guide groove

The present invention relates to a plate, such as a fixing device for a printed circuit board, and more particularly to a plate fixing device for inserting and fixing a plate. In particular, the present invention further provides a channel member for a sheet fixture.

With the advancement of technology, electronic products, such as personal computers, notebook computers, audio-visual products and home video games, have become indispensable must-have items for consumers. The aforementioned electronic products each have a plate, such as a circuit board, a display panel, and an operation panel. That is to say, the circuit board is taken as an example, and has the function of arranging and electrically connecting the various electronic components. Therefore, the circuit board is an essential component of the electronic product, so whether it can be stably fixed in the electronic product becomes a problem to be solved.

As shown in FIG. 1 and FIG. 2, it is an exploded perspective view of a conventional fixture for a board, such as a printed circuit board, and a perspective view of the assembled body. Referring to FIG. 1 , the plate fixing device includes a pair of channel members 10 and a plate member 20 . For convenience of description, only one channel member 10 is disclosed. The channel member 10 is symmetrically disposed with a pair of brackets 101 on the front and rear sides. A pair of insertion grooves 102 are integrally connected to the inner side of the bracket 101, and a pair of guide grooves 103 are formed on the left and right sides of the insertion block 102. The pair of brackets 101, the insertion block 102 and the upper portion of the pair of guide grooves 103 are respectively opened horizontally. a positioning hole 104 and a pair of through holes 105; and a pair of sleeve holes 106 are oppositely formed on the bottom of the pair of brackets 101, and the two metal nuts 107 are respectively sleeved in a set of holes 106 for traversing the base of the electronic product by screws The seat (not shown) is locked to the metal nut 107, and the guide members 10 can be fixed to a preset position inside the electronic product.

The guiding member 10 further includes a positioning member 30. A positioning pin 301 and a pair of fixing pins 302 are respectively protruded from the positioning hole 104 and the pair of the through holes 105. The plate 20, for example, the printed circuit board has a slot 201 extending longitudinally corresponding to the position of the slot 102 of each of the channel members 10, and a pair of positioning holes 202 are defined in the upper portion of the upper portion of the slot 201 corresponding to the positioning pin 302.

When the plate fixing device is assembled, the slots 201 of the printed circuit board 20 are first aligned with the insertion holes 102 of the channel members 10, so that the sides of each slot 201 are guided on both sides of each channel member 10. Inside the slot 103. Then, the positioning pin 301 and the fixing pin 302 of each positioning member 30 are aligned with the positioning holes 104 of the guide groove members 10 and the through holes 105 are inserted, so that the positioning pin 301 passes through the slot 201 and is fixed to the positioning hole 104. The pair of fixing pins 105 pass through the pair of fixing holes 202 in the pair of through holes 105, so that the printed circuit board 20 is not longitudinally disengaged by the channel members 10, and forms a fixed pattern as shown in FIG.

The lack of the above-mentioned sheet fixing device is that the assembly of the positioning member 30, the guide member 10 and the printed circuit board 20 has to be manually aligned, which requires labor. Moreover, the positioning member 30 and the channel member 10 are each formed separately, so that the manufacturing cost is high. In addition, the metal nut 107 is directly sleeved in the sleeve hole 106, often due to the torsion force when the screw and the nut are locked, causing the sleeve hole to rupture and losing the locking function. In particular, the pair of fixing holes 202 of the printed circuit board 20 are too close to the slot 201, so the pair of fixing holes 202 can only be formed by drilling, and the drilling position is likely to be wrong or misaligned, for example, the fixing hole. The formation of the 202 with the slot 201 will cause the entire printed circuit board 20 to be scrapped, which is a problem to be overcome by the related industry.

The main purpose of the present invention is to provide a plate fixing device, wherein at least two guide frames are directly integrally provided with elastic hooks, and longitudinal slots of the printed circuit board when a plate, such as a printed circuit board, is inserted into the guide frames. The fixing groove of the side connection is fastened to the elastic hook, and the guide frame is fixed to the printed circuit board. Therefore, the sheet fixing device has the advantages of automatically forming the fastening, simplifying the assembly process, reducing the manufacturing cost, and reducing the damage of the printed circuit board.

In order to achieve the foregoing objectives, the technical means adopted in this case is to provide a sheet fixing device comprising:

At least two guide frames, each of which is symmetrically disposed with a pair of brackets, the inner wall of the pair of brackets is longitudinally connected with a plug, and a pair of guide slots are formed on opposite sides of the plug, and the pair of brackets The bottom portion is provided with a connecting portion; wherein a portion of the guiding member is formed with a through hole, and one of the pair of brackets extends longitudinally in the frame hole and forms a reed inwardly at the free end of the reed a resilient hook and a diagonal lever extending from the frame hole on the top surface of the elastic hook;

a plate having a slot extending longitudinally corresponding to the insertion position of each of the channel members, and at least one side of the upper portion of the slot is provided with a positioning groove corresponding to the position of the elastic hook;

By inserting the slots of the plate into the inserts of the channel members, the bottom edge of the plate is moved down along the levers, and the levers and their elastic hooks are pushed outwards. The two sides of each slot of the plate can be specified in the guide grooves on both sides of each channel member. When the positioning slots of the slots are moved down to the elastic hooks, the elastic buckles are released and automatically buckled. Connected to the positioning groove, the plate is fixed to the channel members.

Another object of the present invention is to provide a guide frame for a plate fixing device. The guide frame is directly integrally provided with a resilient hook, and the elastic hook has a function of being fastened to a plate, such as a fixing groove of a printed circuit board. The utility model has the advantages of automatically forming the fastening, simplifying the assembly process and reducing the manufacturing cost.

In order to achieve the foregoing objectives, the technical means adopted in the present invention is to provide a channel member for a plate fixing device, comprising: a pair of symmetrically disposed brackets, the inner wall of the pair of brackets being longitudinally connected with a plug, and the insert A pair of guiding grooves are formed on the two sides of the pair, and a connecting portion is formed on the bottom of the pair of brackets. The upper portion of the guiding member defines a through hole, and one of the pair of brackets extends longitudinally in the frame hole. a reed, and a resilient hook is formed inwardly at the free end of the reed, and a diagonal lever extending from the frame hole is disposed on the top surface of the elastic hook.

In order to further disclose the specific technical content of the present invention, first, please refer to the drawings. FIG. 1 is an exploded perspective view of a conventional plate fixing device and a plate, and FIG. 2 is a perspective view of a conventional plate fixing device and a plate assembly, and FIG. 3 is a perspective view. The three-dimensional exploded view of the plate fixing device and the plate in this case, FIG. 4 and FIG. 5 are three-dimensional views of the two different viewing angles of the guiding frame of the present invention, FIG. 6 is a sectional view of the guiding frame of the present case, and FIG. 7 is a sectional view of the plate fixing device and the plate in the present case. A perspective view, Fig. 8 is a cross-sectional view of the sheet fixing device and the sheet of the present invention.

As shown in FIG. 3, basically, the sheet fixing device of the present invention is composed of at least two guide frames 4 and a plate 5.

As shown in FIG. 4 to FIG. 6 , a pair of brackets 41 are symmetrically disposed on the front and rear sides of each of the guide brackets 4 , wherein each of the brackets 41 is a wedge-shaped body having a narrow upper and a lower width, and the inner wall of the pair of brackets 41 is integrally connected with a plug. And a pair of guiding grooves 43 are formed on the left and right sides of the plug 42 , wherein each of the guiding grooves 43 is selectively laterally disposed with at least one curved rib 431 opposite to the inner wall for clamping the rear plate 5 The sheet 5 does not sway back and forth. The bottom of the pair of brackets 41 is provided with a connecting portion 44. The connecting portion 44 is coupled to a nut 442, for example, but not limited to, in the longitudinal direction of the pair of brackets 41. A pair of positioning grooves 443 are oppositely recessed on the left and right sides of the 441 so as to be sleeved on the top positioning preset protrusion 61 of the base 6 of the electronic product (shown in FIG. 3), and then the screw is passed through the base 6 The through hole 62 is formed in the front and rear sides of each pair of positioning protrusions 61, and is locked to the nut 442, so that the channel member 4 can be fixed on the top surface of the base 6 of the electronic product.

A guide hole 45 is formed in the upper portion of the guide member 4. A bracket 41 of the pair of brackets 41 extends a reed 46 longitudinally in the frame hole 45, and an elastic buckle is formed inwardly at a free end of the reed 46. The hook 461 has a hook 462 extending longitudinally from the bottom of the elastic hook 461, and a diagonal lever 463 extending from the frame hole 45 is formed in the top cover. In addition, in order to increase the structural strength of the lever 463 and the reed 46, the lever 463 and the reed 46 are provided with a wedge-shaped reinforcing piece 464 on the abutting surface.

Referring to FIG. 3, the plate 5, for example, the printed circuit board is opened in the longitudinal direction corresponding to the position of the plug 42 of each of the guide members 4, and at least one side of the upper portion of the slot 51 is connected to the position of the elastic hook 461. Positioning slot 52. The advantage that the slot 51 communicates with the positioning slot 52 is that the positioning slot 52 is formed on at least one side of the slot 51 by punching to increase the accuracy of the position and size.

When the plate fixing device is assembled, the at least two guide frames 4 are first fixed to the top surface of the base 6 by the positioning and screwing. Next, the plate 5, for example, the slots 51 of the printed circuit board are inserted into the plugs 42 of the channel members 4, so that the bottom edge of the printed circuit board 5 is moved down along the levers 463, and the The lever 463 and the elastic hook 461 are externally pushed and stored, so that the sides of each slot 51 of the printed circuit board 5 are defined in the guiding slots 43 on both sides of each guiding member 4, and by the guiding slots The arcuate ribs 431 disposed opposite to each other 43 sandwich the printed circuit board 5 in a point contact manner so that the printed circuit board 5 does not sway back and forth. Then, the printed circuit board 5 is continuously pushed down until the positioning slots 52 of the slots 51 are moved down to the elastic hooks 461, and the elastic hooks 461 are released and automatically fastened in the positioning slots 52, and The hook 462 at the bottom of the elastic clasp 461 is inserted into the slot 51 so that the printed circuit board 5 is not longitudinally disengaged by the guide members 4, and the fixed type as shown in FIGS. 7 and 8 is formed. state.

Therefore, the effect of the gain of the implementation of the present invention is that the guide frame is integrally provided with the elastic hooks. Therefore, when the printed circuit board is inserted into the guide frame, the side of the slot of the printed circuit board The connecting fixing groove is fastened to the elastic hook to form a fixing of the guiding frame to the printed circuit board. Therefore, the present invention has a simplified assembly process, such as a manual alignment process and a labor-consuming time, compared to the conventional plate fixing device; and the manufacturing cost is reduced, for example, the guide groove price is integrally formed, which can reduce the mold and the injection cost; The yield of the printed circuit board, because the positioning slot of the printed circuit board in this case is formed by punching and is connected with the slot, and the positioning hole of the conventional printed circuit board can only be formed by drilling, which is easy to be drilled. The wrong position or misalignment, which leads to the destruction of the printed circuit board, is one of the best things that has never been seen before.

The disclosure of the present invention is a preferred embodiment. Any change or modification of the present invention originating from the technical idea of the present invention and being easily inferred by those skilled in the art will not deviate from the scope of patent rights of the present invention.

4‧‧‧ Guide frame
41‧‧‧ bracket

42‧‧‧Insert
43‧‧‧ Guide slot

431‧‧‧Arc ribs
44‧‧‧Connecting Department

441‧‧‧Base
442‧‧‧ nuts

443‧‧‧ positioning groove
45‧‧‧Box hole

46‧‧‧Reed
461‧‧‧Flexible clasp

462‧‧‧ hook
463‧‧‧Pole

464‧‧‧ Strengthening film

5‧‧‧ plates
51‧‧‧ slots

52‧‧‧ positioning slot

6‧‧‧Base
61‧‧‧Positioning bumps

62‧‧‧through hole

10‧‧‧ Guide groove
101‧‧‧ bracket

102‧‧‧Insert
103‧‧‧ Guide slot

104‧‧‧Positioning holes
105‧‧‧Perforation

106‧‧‧ Set of holes
107‧‧‧ Nuts

20‧‧‧ plates
201‧‧‧ slots

202‧‧‧Positioning holes

30‧‧‧ Positioning parts
301‧‧‧Locating pin

302‧‧‧fixed pin

1 is an exploded perspective view of a conventional sheet fixing device and a sheet material.

2 is a perspective view of a conventional plate fixing device assembled with a sheet material.

Figure 3 is an exploded perspective view of the sheet fixing device and the sheet material of the present invention.

4 and 5 are perspective views of two different viewing angles of the guide frame of the present invention.

Figure 6 is a cross-sectional view of the guide frame of the present invention.

Figure 7 is a perspective view of the panel fixing device and the panel of the present invention.

Figure 8 is a cross-sectional view of the sheet fixing device and the sheet of the present invention.

4‧‧‧ Guide frame

41‧‧‧ bracket

42‧‧‧Insert

43‧‧‧ Guide slot

44‧‧‧Connecting Department

443‧‧‧ positioning groove

45‧‧‧Box hole

46‧‧‧Reed

463‧‧‧Pole

5‧‧‧ plates

51‧‧‧ slots

52‧‧‧ positioning slot

6‧‧‧Base

61‧‧‧Positioning bumps

62‧‧‧through hole

Claims (13)

A sheet fixing device comprising:
At least two guide frames, each of which is symmetrically disposed with a pair of brackets, the inner wall of the pair of brackets is longitudinally connected with a plug, and a pair of guide slots are formed on opposite sides of the plug, and the pair of brackets The bottom portion is provided with a connecting portion; wherein a portion of the guiding member is formed with a through hole, and one of the pair of brackets extends longitudinally in the frame hole and forms a reed inwardly at the free end of the reed a resilient hook, and a top side of the elastic hook is provided with a diagonal lever extending outside the frame hole; and a plate corresponding to the insertion position of each channel member to open a slot longitudinally, and the slot At least one side of the upper section is provided with a positioning groove corresponding to the position of the elastic hook;
By inserting the slots of the plate into the inserts of the channel members, the bottom edge of the plate is moved down along the levers, and the levers and their elastic hooks are pushed outwards. The two sides of each slot of the plate can be specified in the guide grooves on both sides of each channel member. When the positioning slots of the slots are moved down to the elastic hooks, the elastic buckles are released and automatically buckled. Connected to the positioning groove, the plate is fixed to the channel members.
The sheet fixing device according to claim 1, wherein the bottom of the elastic hook protrudes longitudinally from a hook that can be buckled into the slot.
The sheet fixing device according to claim 1, wherein the lever and the reed abutting surface are provided with a wedge-shaped reinforcing sheet.
The plate fixing device of claim 1, wherein the guide groove is selectively laterally disposed with at least one curved rib relative to the inner wall.
The plate fixing device according to claim 1, wherein the connecting portion is coupled to a nut in a longitudinal direction of the opposite bases of the pair of brackets.
The plate fixing device according to claim 5, wherein the nut is fixed in the base of the bracket by means of burying and injection molding.
The plate fixing device according to claim 5, wherein the pair of brackets are oppositely recessed with a pair of positioning grooves on the left and right sides of the two bases.
The plate fixing device according to claim 1, wherein the plate is a printed circuit board, and the positioning groove is formed on at least one side of the slot by punching.
A channel member for a plate fixing device, comprising:
a pair of symmetrically disposed brackets, the inner wall of the pair of brackets is longitudinally connected with a plug, and a pair of guiding slots are formed on opposite sides of the plug, and a connecting portion is disposed at the bottom of the pair of brackets; wherein the upper part of the guiding slot is opened a through hole, and one of the pair of brackets extends longitudinally in the frame hole, and a resilient hook is formed inwardly at the free end of the spring, and a top surface of the elastic hook is disposed on the top surface of the elastic hook An oblique lever that extends beyond the hole in the frame. The guide member for a plate fixing device according to claim 9, wherein a bottom of the elastic hook protrudes longitudinally from a hook. The guide groove member for a plate fixing device according to claim 9, wherein the guide groove is selectively laterally disposed at least with an arcuate rib with respect to the inner wall. The guide member for a plate fixing device according to claim 9, wherein the connecting portion is respectively coupled with a nut in a longitudinal direction of the opposite bases of the pair of brackets, and the pair of brackets are adjacent to the left and right sides of the two bases. A pair of positioning grooves are recessed. The guide member for a plate fixing device according to the invention of claim 12, wherein the nut is fixed in the base of the bracket by means of burying and injection molding.