CN201066972Y - Circuit board fixing structure of electronic device - Google Patents

Abstract

A circuit board fixing structure of an electronic device comprises a buckling seat and a fixing column assembly, wherein the electronic device is provided with a circuit board and a machine shell. The fastening seat is formed on the casing and is provided with a slot. The fixed column component is rotatably arranged on the circuit board in a penetrating way and is provided with a fixed rod penetrating through the slot. At least one blocking wing is formed on the periphery of the fixing rod and used for buckling the edge of the slot at a buckling position, so that the circuit board is fixed on the machine shell. The utility model provides a fixed knot constructs can not only make the dismouting of circuit board more simple and convenient, but also can make the dismouting of circuit board rapider.

Description

Circuit board fixing structure of electronic device

technical field

The utility model relates to a circuit board fixing structure of an electronic device, in particular to a fixing structure for fixing a circuit board.

Background technique

Electronic devices usually have many printed circuit boards, such as mainboards in computer systems, and such printed circuit boards must be installed in the casing of the electronic device by some fixing means. In this way, the printed circuit board can be protected by the case of the electronic device, so as to prevent the printed circuit board from being impacted or disturbed by external force and the like. As far as the electronic devices popular in the market are concerned, most of the printed circuit boards are fixed on the casing by screw locking.

The common screw locking method is to open a plurality of fixing holes on the printed circuit board in advance, and also provide a plurality of screw holes corresponding to the fixing holes on the casing, wherein the screws first pass through the fixing holes of the printed circuit board, and then The user then uses a screwdriver to respectively screw the screws into the corresponding screw holes on the casing. In this way, the printed circuit board can be smoothly locked on the casing with screws. Although this screw fastening method seems to be quite simple in structure, the user must use a tool to tighten or unscrew the screws when disassembling the printed circuit board, so that the printed circuit board can be assembled or disassembled. If there is no corresponding tool at hand, the printed circuit board cannot be disassembled, which is extremely inconvenient to use. On the other hand, due to the large number of screws that must be fastened, the steps of disassembling and assembling the printed circuit board are tedious and time-consuming.

In order to solve the problem that the screws must be equipped with tools to be able to disassemble and assemble, the screw has been improved to a thumb screw that can be turned directly by fingers, so as to reduce the trouble of not being able to disassemble the printed circuit board without tools at hand. However, the user still needs to rotate the thumb screw for locking, which still has the problem of time-consuming and labor-intensive problems. In addition, the cost and cost of thumb screws are much higher than that of ordinary screws.

Therefore, it is necessary to provide a circuit board fixing structure for mounting and dismounting a printed circuit board, which not only makes the circuit board dismounting easier, but also makes the circuit board dismounting faster.

Contents of the invention

In view of the fact that the circuit boards of electronic devices in the prior art are mostly locked on the casing by screws, which is time-consuming and labor-intensive and requires tools to be used. Although thumb screws do not need tools, they are still time-consuming, labor-intensive and costly. The main purpose of the utility model is to provide a movable clamping structure to solve the problem that the circuit board is fixed to the casing by screw locking.

In order to solve the aforementioned problems, the main technical idea of the present invention is to provide a circuit board fixing structure of an electronic device, which includes a buckle seat and a fixing column assembly, wherein the electronic device has a circuit board and a casing. The buckling seat is formed on the casing of the electronic device and has a slot. The fixing column assembly is rotatably passed through the circuit board of the electronic device and has a fixing rod passing through the slot. At least one retaining wing is formed on the periphery of the fixing rod, and the retaining wing is used for buckling the edge of the slot at a buckling position, thereby fixing the circuit board on the casing. The retaining wing of the fixing rod can also move to a release position with the rotation of the fixing post assembly, so that the fixing rod can withdraw from the slot, so that the circuit board can be disassembled from the casing.

Specifically, the utility model provides a circuit board fixing structure of an electronic device, the electronic device has a circuit board and a casing, the fixing structure includes: a buckle seat, which is formed on the casing and has a narrow slot; and a fixed post assembly, which is rotatably penetrated on the circuit board and has a fixed rod, which is used to pass through the slot, and the periphery of the fixed rod forms at least one retaining wing, and the retaining wing Used to buckle the edge of the slot in a buckling position. The beneficial technical effect of the utility model is that the fixed rod of the fixed column assembly extends into the slot of the buckle seat, thereby using the retaining wing on the fixed rod to buckle the edge of the slot, so that the circuit board cannot be separated from the casing, and the fixed column The assembly is rotated so that the fixing rod exits the slot, so that the circuit board can be disengaged from the case, which not only makes the process of removing and installing the circuit board easier, but also makes the removal and installation of the circuit board faster.

The detailed features and advantages of the present utility model are described in detail below in the implementation manner, and its content is enough to enable those skilled in the art to understand the technical content of the present utility model and implement it accordingly, and according to the disclosed content, claims and accompanying drawings of this specification , those skilled in the art can easily understand the aforementioned purpose and advantages of the utility model.

The above description of the content of the utility model and the following description of the implementation are used to demonstrate and explain the principle of the utility model, and provide further explanations for the claims of the utility model.

Description of drawings

Fig. 1 is a three-dimensional exploded view of a circuit board and a casing of the present invention.

FIG. 2A is a three-dimensional exploded view of the circuit board and the fixing post assembly in the present invention.

Fig. 2B is a three-dimensional schematic diagram of the circuit board and the casing in the utility model;

Fig. 2C is a three-dimensional schematic diagram of a fixed rod in the utility model;

Fig. 3 is the bottom view of the casing and the buckle seat in the utility model;

Fig. 4 is the three-dimensional schematic diagram of circuit board and casing in the utility model;

Fig. 5 is the sectional schematic diagram of circuit board and casing in the utility model;

Fig. 6 is a three-dimensional schematic diagram of the flap in the release position of the utility model;

Fig. 7 is a three-dimensional schematic diagram of the retaining wing in the buckling position of the present invention.

Wherein, the reference signs are explained as follows:

10 Case 11 Buckle seat 12 Slot 121 Round hole 122 Side hole

13 chamber 14 limit rib 20 circuit board 21 fixing hole 30 fixing column assembly

31 fixed rod 311 retaining wing 312 stop surface 313 arc surface 32 knob

33 center pole

Detailed ways

In order to enable those skilled in the art to have a further understanding of the purpose, structure, features and functions of the present utility model, the following detailed descriptions are given in conjunction with the embodiments.

Please refer to FIG. 1 . FIG. 1 shows a circuit board fixing structure of an electronic device provided by the present invention, which includes a buckling seat 11 and a fixing post assembly 30 . Such an electronic device is, for example, a personal computer, a server, etc., wherein the electronic device has a casing 10 and a circuit board 20 , and the circuit board 20 has a fixing hole 21 . The fixing structure of the present invention is used to provide a disassembly mechanism, so that the circuit board 20 can be fixed on the casing 10 by using the fixing structure, and the circuit board 20 can be disassembled from the casing 10 by releasing the fixing structure.

Please refer to FIG. 1 , FIG. 2B , FIG. 3 and FIG. 5 , the buckling seat 11 is formed on the casing 10 and protrudes from one side surface of the casing 10 . The buckle seat 11 is hollow inside and has a slot 12 , a chamber 13 and two limiting ribs 14 . The slot 12 is formed on the top surface of the buckle base 11 and communicates with the cavity 13 inside the buckle base 11 . The slot 12 is formed by a round hole 121 and two side holes 122 , wherein the side holes 122 and the round holes 121 are connected to each other. Each limiting rib 14 is respectively formed on the edge of the slot 12 and accommodated in the chamber 13 , wherein the limiting rib 14 is used to limit the rotation range of the fixing column assembly 30 . The number of limiting ribs 14 may be, but not limited to, two. In the present invention, only two limiting ribs 14 are taken as an example to illustrate the specific implementation.

Please continue to refer to FIG. 2A , FIG. 2B , FIG. 2C , FIG. 4 and FIG. 5 , the fixing post assembly 30 is rotatably mounted on the circuit board 20 and includes a fixing rod 31 , a knob 32 and a central rod 33 . The fixed rod 31 and the central rod 33 are mounted on one side of the circuit board 20 , and the knob 32 is mounted on the other side of the circuit board 20 .

The central rod 33 passes through the fixing rod 31 and the fixing hole 21 of the circuit board 20 , and is inserted into the bottom of the knob 32 to assemble the fixing rod assembly 30 on the circuit board 20 . The outer diameter of the central rod 33 is smaller than the diameter of the fixing hole 21 so that the central rod 33 can pass through the circuit board 20 and rotate relative to the circuit board. The knob 32 is used for twisting, so as to drive the fixing column assembly 30 to rotate in a forward direction or a reverse direction on the circuit board 20 . The aforementioned clockwise rotation direction refers to the clockwise rotation of the fixing column assembly 30 relative to the circuit board 20 when viewed from the circuit board 20 towards the casing 10 . The aforementioned reverse direction means that when the circuit board 20 is viewed towards the casing 10 , the fixing post assembly 30 rotates counterclockwise relative to the circuit board 20 . The fixing rod 31 may be but not limited to be in the shape of a cylindrical sleeve. The fixing rod 31 passes through the slot 12 of the buckling seat 11 and is sleeved on the central rod 33 . Two retaining wings 311 are formed on the periphery of the fixing rod 31 , and the fixing rod 31 is driven by the knob 32 to rotate relative to the circuit board 20 , so that the retaining wings 311 rotate relative to the buckle seat 11 of the casing 10 . The circular hole 121 of the slot 12 is used for passing the fixing rod 31 , and the side hole 122 of the slot 12 is used for passing the retaining wing 311 of the fixing rod 31 . The retaining wing 311 has a stop surface 312 and an arc surface 313, wherein the stop surface 312 is used to abut against the limiting rib 14 on the edge of the slot 12, and the distance between the arc surface 313 and the central axis of the fixing rod 31 is larger than the circular hole 121 radius. Therefore, the blocking wing 311 can buckle the edge of the slot 12 , so that the fixing rod 31 cannot exit the buckling seat 11 through the slot 12 . In addition, the retaining wing 311 is also restricted by the limiting rib 14 , so that the fixed column assembly 30 cannot continue to rotate in the aforementioned forward direction. The number of retaining wings 311 may be but not limited to two, and in the present invention, only two retaining wings 311 are taken as an example to illustrate the specific implementation manner.

As shown in FIG. 1 , FIG. 6 and FIG. 7 , the flap 311 of the fixing column assembly 30 in FIG. 1 and FIG. 7 is at a release position, while the flap 311 of the fixing column assembly 30 in FIG. 6 is at a buckling position.

When the retaining wing 311 of the fixing column assembly 30 is at the release position as shown in FIGS. . Therefore, the user can install the circuit board 20 on the casing 10 as long as the knob 32 is used to adjust the flap 311 to the release position, but the circuit board 20 can still be detached from the casing 10 at this time. Next, the user must turn the knob 32 in the aforementioned clockwise direction to drive the fixed column assembly 30 to rotate relative to the circuit board 20 and the casing 10, so that the flap 311 moves from the aforementioned release position to the buckling position as shown in FIG. 6 . At this time, the retaining wing 311 of the fixing rod 31 buckles the edge of the slot 12 , so that the fixing rod 31 cannot withdraw from the locking seat 11 , so the circuit board 20 cannot be separated from the casing 10 . At the same time, the stop surface 312 of the retaining wing 311 of the fixing rod 31 also abuts against the limiting rib 14 at the buckling position, so that the fixing column assembly 30 cannot continue to rotate relative to the circuit board 20 and the casing 10 in the forward direction. In this way, the assembly step of fixing the circuit board 20 to the casing 10 is completed. On the contrary, if the user wants to disassemble the circuit board 20 from the casing 10, as long as the knob 32 is turned in the aforementioned reverse direction, the fixing post assembly 30 can be driven to rotate relative to the circuit board 20 and the casing 10, so that the retaining wing 311 can be rotated by The aforementioned buckling position moves back to the aforementioned releasing position. At this time, the fixing rod 31 of the fixing column assembly 30 can withdraw from the buckle seat 11 , so the circuit board 20 can also be detached from the casing 10 and disassembled from the casing 10 .

The fixed rod 31 of the fixed column assembly 30 of the present utility model extends into the slot 12 of the buckle seat 11, and the retaining wing 311 on the fixed rod 31 is used to buckle the edge of the slot 12, so that the circuit board 20 cannot be separated from the casing 10, And the fixing pole 31 can be withdrawn from the slot 12 by rotating the fixing pole assembly 30 , so that the circuit board 20 can be separated from the casing 10 . The circuit board fixing structure of the utility model can not only make the steps of disassembling and assembling the circuit board 20 more convenient, but also make disassembling and assembling the circuit board 20 faster.

Although the utility model is disclosed above with the foregoing embodiments, it is not intended to limit the utility model. Changes and modifications made without departing from the concept and scope of the present utility model all belong to the scope of rights of the present utility model. Please refer to the appended claims for the scope of protection defined by the utility model.

Claims (7)

1. the circuit board fixation structure of an electronic installation, this electronic installation has a circuit board and a casing, it is characterized in that, and this fixed structure comprises:

One button is held seat, and it is formed at this casing and has a slit; And

One fixed leg assembly, it rotatably is arranged in this circuit board and has a fixed lever, and this fixed lever is in order to pass this slit, and the periphery of this fixed lever forms at least one block wing, described block wing is held the position at a button and is fastened this edges of slots, and this circuit board is fixed in this casing.

2. the circuit board fixation structure of electronic installation as claimed in claim 1 is characterized in that, this slit comprises a circular hole and an at least one side opening that supplies this fixed lever to pass, and described side opening and this circular hole are connected to each other, and pass through for this block wing.

3. the circuit board fixation structure of electronic installation as claimed in claim 2 is characterized in that, described block wing has a cambered surface, and the distance of the central axis of this cambered surface and this fixed lever is greater than the radius of this circular hole.

4. the circuit board fixation structure of electronic installation as claimed in claim 1, it is characterized in that, this button is held seat and is also comprised at least one spacing rib, described spacing rib is formed at this edges of slots, and described block wing has one in order to hold the position at this button against this spacing rib and limit the stop surface of the rotating range of this fixed leg assembly.

5. the circuit board fixation structure of electronic installation as claimed in claim 1 is characterized in that, this fixed leg assembly also comprises one by reversing the knob that drives this fixed leg assembly rotation.

6. the circuit board fixation structure of electronic installation as claimed in claim 5 is characterized in that, this fixed leg assembly also comprises a center pole, and this center pole passes this fixed leg and this circuit board and inserts this knob and this fixed leg component groups is loaded on this circuit board.

7. the circuit board fixation structure of electronic installation as claimed in claim 1 is characterized in that, this button is held the inner chamber with this slit of connection of seat, ccontaining this fixed lever of this chamber and this block wing.

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