TWI454882B - Electronic device - Google Patents

Description

Electronic device

The present invention relates to an electronic device, and more particularly to an electronic device having a circuit board.

An electronic device includes a housing, a circuit board, and a locking mechanism. The locking mechanism includes a connecting member and a fixing member disposed at one end of the connecting member. The connector is located between the circuit board and the chassis and is perpendicular to the circuit board to maintain the height between the circuit board and the chassis. The fixing member includes a rod portion and a locking portion located at one end of the rod portion and having a diameter larger than a diameter of the rod portion. A mounting hole corresponding to the rod portion of the fixing member is opened on the circuit board, the rod portion passes through the mounting hole and is fixed to the connecting member, and the locking portion presses the outer edge of the mounting hole to fix the circuit board to the connecting member on. The fixing member can be a screw, and one end of the connecting member is provided with a threaded hole corresponding to the fixing member, and the rod portion of the fixing member passes through the fitting hole and is screwed into the threaded hole of the connecting member, and the locking portion of the fixing member, that is, the nut The circuit board portion of the edge of the mounting hole can be resisted to fix the circuit board to the connecting member; the fixing member can also be an elastic hook, and the rod portion or the locking portion is elastically deformed to allow the rod portion to penetrate into the assembly. In the hole, the locking portion abuts the portion of the circuit board adjacent to the mounting hole to fix the circuit board to the connecting member.

However, due to processing precision or improper assembly, the connector provided on the casing may not be perpendicular to the circuit board and form an angle with the normal of the circuit board, thereby causing the fixing member to be worn at an oblique angle. Into the assembly hole. In this assembly process, solid The fixing will be scratched with the board, causing the board to be damaged and affecting the operation of the board, and even causing the mounting hole to be cracked, thereby losing its fixing effect.

In view of the above, it is necessary to provide an electronic device that prevents damage when the board is assembled.

An electronic device includes a housing, a circuit board located inside the housing, and a fixing structure. Mounting holes are formed on the circuit board. The fixing structure includes a fixing member and a connecting member provided on the housing. A fixing member is used to lock the circuit board to the connecting member. The connecting member includes a main body, a fixing portion fixed to the housing, and an elastic connecting portion. The elastic connecting portion is fixed to the fixing portion. The elastic connecting portion includes a base body fixed to the fixing portion and an arc-shaped extending portion extending from the base body away from the fixing portion and fixedly connected with the main body. One end of the elastic connecting portion is fixed to the inner side of the casing, and the other end is connected to the main body. The main body can drive the elastic connecting portion to be elastically deformed and finely adjusted to align the main body with the fitting hole.

If the main body of the connecting member of the electronic device is not aligned with the mounting hole of the circuit board, the elastic connecting portion may be deformed, the position of the main body is finely adjusted, and the main body is aligned with the mounting hole to prevent the fixing member from pressing the circuit at an abnormal angle. The board causes it to be damaged.

100‧‧‧Electronic devices

10‧‧‧shell

11‧‧‧ bottom

13‧‧‧ side

30‧‧‧ boards

31‧‧‧Assembly holes

50‧‧‧Fixed structure

51‧‧‧Fixed parts

511‧‧‧Locking Department

513‧‧‧ Rod

55‧‧‧Connecting parts

551‧‧‧ Subject

5511‧‧‧Fixed end

5512‧‧‧ Adjusting end

5514‧‧‧Abutment flange

5515‧‧‧ guiding slot

5516‧‧‧Threaded hole

552‧‧‧Flexible connection

5521‧‧‧ base

5523‧‧‧Stretching Department

5525‧‧‧Extension

5527‧‧‧ joints

553‧‧‧Fixed Department

5531‧‧‧through hole

FIG. 1 is a schematic perspective view of an electronic device according to an embodiment of the present invention with an internal electronic component and a partial housing omitted.

2 is a partial cross-sectional enlarged view of the electronic device shown in FIG. 1.

3 is a perspective exploded view of the fixed structure shown in FIG. 2.

Figure 4 is a cross-sectional view taken along line IV-IV of Figure 2.

The electronic device of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

Referring to FIG. 1 and FIG. 2 , the electronic device 100 of the embodiment of the present invention includes a housing 10 , a circuit board 30 , and four fixing structures 50 . The housing 10 includes a curved bottom surface 11 and four side surfaces 13 extending along the edge of the bottom surface 11 in a direction away from the bottom surface 11. The circuit board 30 is generally square in shape and is secured to the bottom surface 11 of the housing 10 by a fixed structure 50 at its four corners. The electronic device 100 also includes other electronic components that are electrically coupled to the circuit board 30. In the present embodiment, only the fixed structure 50 for securing the circuit board 30 will be described in detail. The electronic device 100 can be an electronic device such as a computer, a mobile phone, or a liquid crystal display. Specifically, in the present embodiment, the electronic device 100 is a computer.

Referring to FIG. 3 and FIG. 4, the circuit board 30 is provided with a circular mounting hole 31. The fixing structure 50 includes a fixing member 51 and a connecting member 55 fixed on the bottom surface 11 of the housing 10. In the present embodiment, the fixing member 51 is a screw.

The fixing member 51 includes a cylindrical locking portion 511 and a cylindrical rod-shaped rod portion 513 extending from one end surface of the locking portion 511. The diameter of the locking portion 511 is larger than the diameter of the fitting hole 31. The diameter of the rod portion 513 is smaller than the diameter of the fitting hole 31.

The connecting member 55 includes a main body 551, four elastic connecting portions 552 and a fixing portion 553. The main body 551 has a cylindrical shape and includes a fixed end 5511 and an adjustment end 5512 opposite to the fixed end 5511. The body 551 extends radially outwardly from the edge of the fixed end 5511 to form an abutting flange 5514. The main body 551 is sequentially provided with a guiding groove 5515 and a threaded hole 5516 at the end of the fixed end 5511. The guiding groove 5515 has a funnel shape, and the smaller end of the hole has a hole diameter corresponding to the threaded hole 5516 and communicates with the threaded hole 5516. When the fixing member 51 is fitted into the threaded hole 5516 from the end of the fixed end 5511 of the main body 551, the guiding groove 5515 can serve as a guide for convenient installation. The adjustment end 5512 has a partial spherical shape.

The elastic connecting portion 552 is a flat metal piece bent at one end into a hook shape, and includes an elongated base body 5521, a stretched portion 5523 which is bent from an end of the base body 5521 and has a circular arc shape, and extends from the extending portion 5523 away from the end of the base body 5521. The formed extension portion 5525 and the joint portion 5527 extending perpendicularly outward from the end of the extension portion 5525 from the extension portion 5525. The engaging portion 5527 of the elastic connecting portion 552 is fixed to the main body 551 at a position close to the adjusting end 5512 from one end of the extending portion 5525. The base portion 5521 is fixed to the fixing portion 553 at one end away from the extending portion 5523, and the axial direction of the base body 5521 and the main body 551 is Roughly parallel. The four elastic connecting portions 552 are evenly arranged uniformly in the outer circumferential direction of the main body 551, and the main body 551 is fixed to the fixing portion 553, and the fixing is relatively stable. Since the extending portion 5523 of the elastic connecting portion 552 is an arc-shaped metal piece having elasticity, the main body 551 can stretch or compress the elastic connecting portion 552 to compress or expand the extending portion 5523 so that the main body 551 is on the fixing portion 553. The motor is moved in the radial direction, moved in the axial direction, or tilted by an angle with respect to the fixed portion 553 to finely adjust the position of the main body 551 on the fixing portion 553. Of course, the extension portion 5525 may be omitted, and the joint portion 5527 may be directly formed on one end of the base body 5521 away from the fixing portion 553, or the joint portion 5527 and the extension portion 5525 may be omitted, and the base portion 5521 and the main body may be directly connected by the extension portion 5523, and the same effect can be achieved. . Moreover, the number of the elastic connecting portions 552 can also be changed as needed. In general, the more the number of the elastic connecting portions 552, the more stable the fixing to the main body 551 is.

The fixing portion 553 is substantially a curved plate that cooperates with the bottom surface 11 of the casing 10, and can be fixed to the bottom surface 11 by adhesion, welding or the like. A through hole 5531 is defined in the fixing portion 553, and the base body 5521 of the four elastic connecting portions 552 is fixed on the side wall of the through hole 5531. Thus, the regulating end 5512 of the main body 551 is opposite to the through hole 5531, and the moving range of the main body 551 in the axial direction is increased. The end of the adjusting end 5512 has a partial spherical shape. During the deflection of the main body 551, the adjusting end 5512 is not easily interfered with the housing 10 or the fixing portion 553, which is favorable for rotation. The adjustment end 5512 can also be made of an elastic material, and the main body 551 He is partially formed separately and fixed to the main body 551 by bonding, and the main body 551 is less likely to be hindered during the deflection process. Of course, if the connecting member 55 is fixed to the bottom surface 11 by other means, the fixing portion 553 can also be omitted.

When assembling, the fixing portion 553 of the connecting member 55 is first completely adhered to the bottom surface 11 of the casing 10 by the double-sided tape. The circuit board 30 is then placed on the connector 55 in a direction perpendicular to the connector 55, and the mounting holes 31 of the circuit board 30 are aligned with the guide grooves 5515 of the connector 55. The rod portion 513 of the fixing member 51 passes through the fitting hole 31 and the guiding groove 5515 in sequence and is locked to the threaded hole 5516 of the locking member 53 , thereby fixing the circuit board 30 to the housing 10 . After the locking is completed, the locking portion 511 of the fixing member 51 abuts against the top surface of the circuit board 30; the abutting flange 5514 of the connecting member 55 abuts against the bottom surface of the circuit board 30.

When the fixing portion 553 of the connecting member 55 and the bottom surface 11 of the housing 10 cannot completely overlap due to processing accuracy problems or assembly failure, the extending direction of the main body 551 of the connecting member 55 may not be perpendicular to the circuit board 30, thereby causing The mounting holes 31 of the circuit board 30 and the body 551 of the connector 55 cannot be coaxially aligned. When the rod portion 513 of the fixing member 51 passes through the fitting hole 31, it will enter the guiding groove 5515, and then press the side surface of the guiding groove 5515 and slide along the side of the guiding groove 5515. At this time, the main body 551 will drive the elastic connection. The portion 552 is elastically deformed such that the threaded hole 5516 is aligned with the fitting hole 31 to screw the fixing member 51 into the threaded hole 5516, thereby fixing the circuit board 30 together with the connecting member 55 to the housing 10. After the locking is completed, the bottom surface of the locking portion 511 of the fixing member 51 completely overlaps with the top surface of the circuit board 30, the contact area is large, and the circuit board 30 is relatively evenly stressed and is not easily damaged.

Since the main body 551 of the connecting member 55 of the present invention is connected to the fixing portion 553 by the elastic elastic connecting portion 552, when the mounting hole 31 of the circuit board 30 and the main body 551 of the connecting member 55 are misaligned, the main body 551 can be finely adjusted on the fixing portion 553. Position to make the assembly hole 31 and the body The alignment of 551 allows the fixing member 51 to smoothly pass through the fitting hole 31 and fix the circuit board 30. The guiding groove 5515 can guide the direction of the fixing member 51, and the screw hole 5516 is automatically aligned with the fitting hole 31, and the assembly is more convenient.

The fixing member 51 is not limited to the above-mentioned structure and fixing manner, and may be other structures. For example, the rod portion 513 of the fixing member 51 may be fixedly formed on the fixed end 5511 of the main body 551, and the rod portion 513 or the locking portion 511 may be elastic. The deformation forms a resilient hook so that the locking portion 511 passes through the mounting hole 31 and is engaged with the edge of the mounting hole 31 to fix the circuit board 30 to the connecting member 55.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

30‧‧‧ boards

31‧‧‧Assembly holes

50‧‧‧Fixed structure

51‧‧‧Fixed parts

511‧‧‧Locking Department

513‧‧‧ Rod

55‧‧‧Connecting parts

5511‧‧‧Fixed end

5512‧‧‧ Adjusting end

5514‧‧‧Abutment flange

552‧‧‧Flexible connection

553‧‧‧Fixed Department

Claims (8)

An electronic device includes a housing, a circuit board located inside the housing, and a fixing structure, wherein the circuit board is provided with a mounting hole, and the fixing structure comprises a fixing component and a connecting component disposed on the housing, the fixing component is used for the fixing component The connector is modified to be: the connector comprises a main body, a fixing portion fixed to the housing, and an elastic connecting portion, wherein the elastic connecting portion is fixed to the fixing portion, the elastic connection The base includes a base fixed to the fixed portion and an arc-shaped extending portion extending from the base away from the fixed portion to the main body. The elastic connecting portion has one end fixed to the inner side of the housing and the other end connected to the main body. The elastic connecting portion is elastically deformed to be finely adjusted to align the main body with the fitting hole. The electronic device of claim 1, wherein the fixing member comprises a rod portion and a locking portion, the rod portion passes through the fitting hole, the locking portion presses the circuit board, and the circuit board is fixed to the circuit board. On the connector. The electronic device of claim 2, wherein the fixing member is a screw, the rod portion is provided with an external thread, and the main body is provided with a threaded hole corresponding to the rod portion, so that the fixing member is detachably Fixed to the connector. The electronic device of claim 3, wherein the main body has a cylindrical shape, and has a fixed end, the threaded hole is formed on the fixed end, and the fixed end is further provided with a guiding groove, the guiding groove In the shape of a truncated cone, the smaller end of the guide slot has a smaller end and communicates with the threaded hole, and the larger end of the guide slot has a larger end near the mounting hole. The electronic device of claim 4, wherein the body further comprises an adjustment end opposite the fixed end, the adjustment end being partially spherical. The electronic device of claim 5, wherein the fixing portion is provided with a through hole corresponding to the adjusting end. The electronic device of claim 4, wherein the main body extends outwardly from the end of the fixed end to form an abutting flange abutting the circuit board. The electronic device of claim 2, wherein the rod portion is fixedly formed on the connecting member, the locking portion has elasticity, and the locking portion is elastically deformed through the fitting hole and is latched on The board is near the mounting hole.