TWM471731U - Fixing structure for circuit board - Google Patents

Abstract

A fixing structure for a circuit board including a base and a locking member is provided. A connecting bar is used to connect between the locking member and the base. A size of a surface of the locking member corresponding to the connecting bar is greater than a size of a contacting area between the locking member and the connecting bar. A hole which allows pass-through of the locking member is formed in the circuit board. A slot which allows an insertion of the connecting bar is formed at a side of the hole. When the connecting bar is inserted into the slot, a surface of connecting the locking member and the connecting bar is in contact with the circuit board of an edge of the slot to fix the circuit board. An advantage of the present invention is that: a conventional screw fixation method is replaced by the above method for fixing the circuit board onto a backing plate by the fixing structure, thereby reducing processing time and quality risk of product.

Description

Board fixed structure

The present invention relates to the field of an assembly structure technology, and more particularly to a circuit board fixing structure.

At present, the more common way to fix the circuit board on the backboard is to use ordinary screw locking. As shown in FIG. 1A and FIG. 1B, a through hole 11 is formed in the circuit board 10, and the corresponding position on the backing plate 12 is riveted. A base 14 having an internal thread matching the screw 13 is passed through the through hole 11 in the circuit board 10 and combined with the base 14 to fix the circuit board 10 to the back plate 12 on.

Generally, such a fixing method requires a power tool to lock the screw, and a circuit board is completely fixed to the back board, and an average of 15 screws are required. When the board is fixed, the average working time for locking the screws is nearly 50 seconds, and the average time is longer. The power tool may slip when the screw is locked. If it slips, it will damage the board and even scrap the board. There are also leaks or floating locks. In the prior art, the use of screws to lock the circuit board on the backboard has the disadvantages of long time and quality risks. Therefore, it is highly desirable to select a method that is short-lived and has no quality risk to fix the circuit board to the backboard. solved problem.

One object of the present invention is to provide a circuit board fixing structure, which is solid The fixed structure can reduce the fixed working time of the board and can ensure that there is no quality risk after the board is fixed.

In order to achieve the above object, the present invention provides a circuit board fixing structure, comprising a base and a locking device, wherein the locking member is connected to the base by a connecting rod, and a surface of the locking member connected to the connecting rod has a surface area larger than The area of the contact surface of the locking member and the connecting rod, a circuit board is provided with a through hole for allowing the locking member to pass through, and a side of the through hole is provided with a card slot for allowing the connecting rod to be inserted, when the connecting rod is inserted into the card After the slot, the surface of the locking member and the connecting rod is in contact with the circuit board at the edge of the card slot for fixing the circuit board.

In an embodiment of the present invention, the connecting rod is engaged with the card slot for further fixing the circuit board.

In an embodiment of the present invention, the two sides of the connecting rod that are engaged with the card slot are inclined in a direction perpendicular to the axis of the connecting rod.

In an embodiment of the present invention, the base is riveted to a member for securing the circuit board to the member.

In an embodiment of the present invention, the base, the locking member and the connecting rod are integrally formed.

In an embodiment of the present invention, when the connecting rod is inserted into the card slot, a surface of the base and the connecting rod is in contact with the circuit board at the edge of the card slot for fixing the circuit board.

In an embodiment of the present invention, a conductive sheet is disposed at a position where the surface of the locking member and the connecting rod are in contact with the circuit board at the edge of the card slot, and the conductive sheet is electrically connected to the locking member. Used to ground the board.

The advantage of the present invention is that the circuit board is fixed on a back board by using the above-mentioned circuit board fixing structure, instead of the conventional screw fixing, the working time is saved, and the quality risk of the product is reduced.

10‧‧‧ boards

11‧‧‧through hole

12‧‧‧ Backplane

13‧‧‧ screws

14‧‧‧ pedestal

20‧‧‧ Pedestal

21‧‧‧Locker

22‧‧‧ Connecting rod

23‧‧‧through hole

24‧‧‧ card slot

25‧‧‧ boards

26‧‧‧ components

27‧‧‧Electrical sheet

221, 222‧‧‧ side

1A and 1B are schematic views showing the structure of a circuit board fixed in the prior art.

Figure 2 is a schematic view showing the structure of the circuit board fixing structure in the present creation.

Figure 3 is a schematic diagram of the structure of the circuit board.

The 4A~4D diagram is a schematic diagram of fixing the circuit board to a component by using the circuit board fixing structure of the present invention.

The specific implementation manner of the circuit board fixing structure provided by the present invention will be described in detail below with reference to the accompanying drawings.

2 is a schematic structural view of a circuit board fixing structure in the present invention. Referring to FIG. 2, the circuit board fixing structure includes a base 20 and a locking member 21, and the locking member 21 is connected by a connecting rod 22 The base 20 is connected, and the surface of the side of the locking member 21 connected to the connecting rod 22 is larger than the area of the contact surface of the locking member 21 and the connecting rod 22. In the present embodiment, the base 20, the lock 21, and the connecting rod 22 are integrally formed. In other embodiments of the present invention, the base 20 and the lock 21 may be connected by the connecting rod 22 by welding or the like.

FIG. 3 is a schematic structural view of the circuit board. Referring to FIG. 3, the circuit board 25 is provided with a through hole 23, the through hole 23 allows the locking member 21 to pass through, and the through hole 23 is provided with a card slot 24, The card slot 24 allows the connecting rod 22 to be inserted into the catch.

In a preferred embodiment, the two side faces of the connecting rod 22 that engage with the card slot 24 (the numerals 221 and 222 shown in FIG. 2) are inclined in a direction perpendicular to the axis of the connecting rod 22. That is, the two side surfaces 221, 222 have a certain degree of slope, so that the fixed structure is reversely stuck by the circuit board when disassembling, thereby ensuring easy disassembly after smooth assembly, and also being convenient to operate.

4A to 4D are schematic views showing the fixing of the circuit board to a member by using the circuit board fixing structure of the present invention.

Please refer to FIGS. 4A and 4B, and FIG. 4B is a cross-sectional view taken along line A-A of the structure shown in FIG. 4A. The base 20 is riveted to a member 26, which is a device to which the circuit board needs to be attached, such as a backing plate of a device. The locking member 21 passes through the through hole 23 of the circuit board 25. At this time, the locking member 21 and the base 20 are respectively located at two sides of the through hole 23, and the connecting rod 22 is wholly or partially located in the through hole 23. The surface of the side of the locking member 21 that is connected to the connecting rod 22 is larger than the area of the contact surface of the locking member 21 and the connecting rod 22, so that the locking member 21 does not fall downward after the connecting rod 22 is inserted into the card slot 24. It falls off from the card slot 24.

Please refer to FIGS. 4C and 4D, and FIG. 4D is a cross-sectional view taken along the line B-B of the structure shown in FIG. 4C. After the fastener 21 passes through the through hole 23, the member 25 is pushed to push the circuit board 25 or push the circuit board, and the connecting rod 22 is inserted into the card slot 24, at this time, the locker 21 and the connecting surface of the connecting rod 22 are in contact with the circuit board 25 at the edge of the card slot 24, further ensuring that the locking member 21 does not fall off from the card slot 24, thereby defining the fixed circuit board fixing structure and the circuit board. Relative position. The surface of the locking member 21 and the connecting rod 22 is in contact with the circuit board 25 at the edge of the card slot 24, so that the base 20 does not pass through the card slot 24, so that the circuit board fixing structure of the circuit Plate 25 is secured to the member 26.

Further, around the card slot 24, the locking member 21 and the connecting rod 22 are A conductive sheet 27 is disposed at a position where the connected surface is in contact with the circuit board 25 at the edge of the card slot 24. The lock 21 of the fixed circuit board fixing structure is in contact with the conductive sheet 27, so that the board can be used by the board Create a circuit board fixed structure grounded.

Further, in order to prevent the present circuit board fixing structure from being separated from the circuit board, a screw locking structure (not shown) is disposed on the circuit board 25, and when the connecting rod 22 is inserted into the card slot 24, the screw A locking structure secures the circuit board to the component to prevent the circuit board securing structure from falling off the circuit board. Preferably, in the embodiment, the connecting rod 22 is just engaged with the card slot 24, and the circuit board fixing structure can be further brought into close contact with the circuit board, thereby facilitating the fixing of the circuit board.

In practice, the fixed circuit board is fixed by the circuit board of the present invention, and the number of fixed structures to be used can be selected according to the size of the circuit board. The fixing of the same size of the circuit board, compared with the screw fixing in the prior art, requires an average of 15 screws, and requires a working time of about 50 seconds. However, the fixed structure of the fixed circuit board of the present invention requires an average of 5 to 10 fixed structures. The working time is only about 10 seconds, which saves working time. The fixed circuit board is fixed by the present invention, and no power tool is required to act on the circuit board, thereby avoiding damage to the circuit board by the power tool, and there is no hidden danger of the leakage lock and the floating lock.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes without departing from the spirit and scope of the present invention. Retouching, therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application attached.

20‧‧‧ Pedestal

21‧‧‧Locker

22‧‧‧ Connecting rod

221, 222‧‧‧ side

Claims (7)

A circuit board fixing structure includes a base and a locking piece, the locking piece is connected to the base by a connecting rod, and a surface of the locking piece connected to the connecting rod has a surface area larger than the locking piece is in contact with the connecting rod The surface of the surface is provided with a through hole for allowing the fastener to pass through, and a side of the through hole is provided with a card slot for allowing the connecting rod to be inserted, and when the connecting rod is inserted into the card slot, the locking member and the locking member A surface of the connecting rod is in contact with the circuit board at the edge of the card slot for fixing the circuit board. The circuit board fixing structure of claim 1, wherein the connecting rod is engaged with the card slot for further fixing the circuit board. The circuit board fixing structure of claim 2, wherein the two sides of the connecting rod that are engaged with the card slot are inclined in a direction perpendicular to the axis of the connecting rod. The circuit board fixing structure of claim 1, wherein the base is riveted to a member for fixing the circuit board to the member. The circuit board fixing structure of claim 1, wherein the base, the locking member and the connecting rod are integrally formed. The circuit board fixing structure of claim 1, wherein when the connecting rod is inserted into the card slot, a surface of the base and the connecting rod is in contact with the circuit board at the edge of the card slot for the circuit board fixed. The circuit board fixing structure of claim 1, wherein a position at which the surface of the locking member and the connecting rod are in contact with the circuit board at the edge of the card slot is provided A conductive sheet electrically connected to the locking member for grounding the circuit board.