Board edge fixing terminals

Abstract

A board edge fixing terminal of a circuit board is used to fix the circuit board on a main board, and comprises: a base, a buckle spring arm, a first limiting arm and a second limiting arm, wherein the base is fixed to the main board and has a first side and two second sides, and the first side and the two second sides correspond to the first board edge and the second board edge of the circuit board respectively; the buckle spring arm is connected to the first side and has a buckle part; the first limiting arm and the two second limiting arms are connected to the first side and the two second sides respectively; wherein the buckle part corresponds to the buckle first board edge, the first limiting arm limits the first board edge, and each second limiting arm limits each second board edge respectively. In this way, the convenience and quick use effect of being able to use without assembly, and the effect of not being easy to fail, damage and having a high yield can be achieved.

Description

[Technical field]

[0001] The invention relates to fixing a circuit board on a main board, and particularly to a board edge fixing terminal of the circuit board. [Background technology]

[0002] Regarding electronic components with circuit boards, such as solid-state drives (SSDs), random access memories (RAMs), or interface cards, since the circuit boards must be electrically connected to a motherboard, it is necessary to fix the circuit boards to the motherboard to prevent the electrical connections therebetween from shifting and causing poor contact.

[0003] However, the existing structure for fixing the circuit board on the motherboard is a multi-piece structure, including: a support base, a pressure plate, a spring and an elastic pad, etc., which leads to the following problems:

[0004] 1. It must be combined before use, which is troublesome;

[0005] Second, the pressure plate and the support base must be elastically supported by springs, which leads to difficulties in assembly;

[0006] 3. There are many connections between the components, so they are prone to failure and damage. [Summary of the invention]

[0007] The object of the present invention is to provide a board edge fixing terminal for a circuit board, which is designed in a single piece and the snap spring arm can be elastically deflected relative to the base by external force, thereby completely overcoming all the problems of the prior art.

[0008] In order to achieve the above-mentioned purpose, the present invention provides a board edge fixing terminal of a circuit board, which is used to fix a circuit board on a main board, wherein the circuit board has a first board edge and two second board edges opposite to each other, and the board edge fixing terminal includes: a base, which is fixed on the main board and has a first side corresponding to the first board edge and two second sides corresponding to the two second board edges respectively; a snap-on elastic arm, which is connected to the first side and has a snap-on portion; a first limiting arm, which is connected to the first side; and two second limiting arms, which are respectively connected to the two second sides; wherein the snap-on portion snaps correspondingly to the first board edge, the first limiting arm limits the first board edge, and each of the second limiting arms limits each of the second board edges respectively.

[0009] Compared with the prior art, the present invention has the following effects: it is convenient to use without assembly, has a quick use effect, is not prone to failure and damage, and has a high yield.

Brief Description of the Drawings

[0010] Figure 1 This is a three-dimensional diagram of the board edge fixing terminal of the present invention when viewed from above.

[0011] Figure 2 It is a three-dimensional view of the board edge fixing terminal of the present invention when viewed from above.

[0012] Figure 3 It is a three-dimensional exploded view of a circuit board before being fixed to a main board through the board edge fixing terminal of the present invention.

[0013] Figure 4 The present invention is based on Figure 3 A three-dimensional combination diagram.

[0014] Figure 5 The present invention is based on Figure 4 A partial enlarged view of .

[0015] Figure 6 The present invention is based on Figure 4 And a cross-sectional view taken at the position of the second limiting arms.

[0016] Figure 7 The present invention is based on Figure 4 And a cross-sectional view cut at the position of the toggle part.

[0017] Figure 8 The present invention is based on Figure 4 And a cross-sectional view cut at the position of the buckle spring arm body. [Specific implementation method]

[0018] The detailed description and technical contents of the present invention are described as follows with reference to the accompanying drawings. However, the accompanying drawings are only provided for reference and description and are not intended to limit the present invention.

[0019] like Figure 3 As shown, the present invention provides a circuit board edge fixing terminal (hereinafter referred to as the circuit board edge fixing terminal 100) for fixing an electronic component on a motherboard 900 in a detachable manner. The electronic component can be any component with a circuit board 800, such as a solid-state drive (SSD), a random access memory (RAM), or an interface card, etc. In this embodiment, a solid-state drive is used as an example for description.

[0020] An electrical connector 9 is provided on the main board 900, and the electronic components are connected to the main board 900 by connecting to the electrical connector 9. The circuit board 800 has a plurality of board edges surrounding each other. In this embodiment, two first board edges 8a and two second board edges 8b surrounding each other in a rectangular shape are used as an example for explanation, and each first board edge 8a and each second board edge 8b are respectively opposite to each other. In other words, one end of each second board edge 8b is connected to the two ends of one of the first board edges 8a, and the other end of each second board edge 8b is connected to the two ends of another first board edge 8a. The board edge fixing terminal 100 is fixed on the main board 900, but the present invention does not limit the positional relationship between the board edge fixing terminal 100 and the electrical connector 9. For example, they can be arranged in an L-shape or spaced apart and side by side. In this embodiment, they are spaced apart and side by side (see Figure 3 ) as an example.

[0021] like Figures 1 to 4 As shown, the board edge fixing terminal 100 includes: a base 1, a snap spring arm 2, at least one first limit arm 3 and two second limit arms 4. In this embodiment, the number of the first limit arms 3 is two for example. It must be noted that the board edge fixing terminal 100 of the present invention is a single-piece object. In actual manufacturing, the metal material or metal sheet can be processed by, for example, cutting and bending to manufacture the board edge fixing terminal 100 of the present invention including the base 1, the snap spring arm 2, the two first limit arms 3 and the two second limit arms 4.

[0022] The base 1 is fixed on the main board 900 and has a first side 1a and two second sides 1b. Figure 1 and Figure 3 As shown, the first side 1a corresponds to one of the two first board edges 8a, and the two second sides 1b correspond to the two second board edges 8b respectively. In other words, one end of each second side 1b is connected to the two ends of the first side 1a. The base 1 can be fixed on the main board 900 in any feasible way. In this embodiment, it is as follows Figure 2 As shown, at least one fixing portion 11 is punched out of the base 1 and protrudes from the bottom surface of the base 1 toward the mainboard 900 . The base 1 is fixed to at least one corresponding fixing portion (not shown) on the mainboard 900 by the at least one fixing portion 11 .

[0023] The buckle spring arm 2 is connected to the first side 1a of the base 1 and has a buckle portion 21a, and the buckle spring arm 2 can be elastically deflected relative to the base 1 with the connection as the axis by external force. Each first limit arm 3 is connected to the first side 1a, preferably the buckle spring arm 2 is located between two first limit arms 3, and the buckle spring arm 2 and the two first limit arms 3 are connected to the first side 1a in a straight line. Each second limit arm 4 is respectively connected to each second side 1b, so that the two second limit arms 4 are spaced apart and opposite to each other.

[0024] By this, Figures 3 to 5 As shown, the electronic component first connects the electrical connector 9 with one of the first board edges 8a of the circuit board 800 at an angle, and then uses the connection of the electrical connector 9 as an axis to press the other first board edge 8a of the circuit board 800 from top to bottom so that it is locked by the board edge fixing terminal 100. Figure 5 as well as Figures 7 and 8 As shown, the two first limiting arms 3 are pressed against the other first board edge 8a of the circuit board 800 to limit the circuit board 800; Figure 6 As shown, each second limiting arm 4 is respectively against each second board edge 8b of the circuit board 800 to limit the position thereof; as for the buckle portion 21a of the buckle spring arm 2, as shown Figures 5 to 8 As shown, another first board edge 8 a of the circuit board 800 is buckled so that the two first board edges 8 a of the circuit board 800 can be fixed on the main board 900 by the electrical connector 9 and the board edge fixing terminal 100 respectively.

[0025] Therefore, the board edge fixing terminal 100 of the present invention has the following effects: First, since the board edge fixing terminal 100 is a single-piece object, it can be used without assembly, and it is convenient and fast to use; second, since the board edge fixing terminal 100 is a single-piece object, there will be no additional spring, and of course there will be no problem of difficulty in assembly; third, the connection relationship between the various parts of the board edge fixing terminal 100 is simple, so it is not easy to fail or damage, and the yield is high.

[0026] The detailed structure, function and effect of each component of the board edge fixing terminal 100 of the present invention will be further described in detail as follows.

[0027] like Figure 1 , Figure 2 and Figure 5 As shown, the buckle spring arm 2 includes at least one buckle spring arm body 21, preferably also includes a guide portion 22 and a toggle portion 23, and the number of the buckle spring arm bodies 21 in this embodiment is taken as two for illustration. The buckle spring arm body 21 has an arm body section 211 and a buckle body section 212, one end of the arm body section 211 is bent and connected to the first side 1a of the base 1, so that the buckle spring arm 2 can be elastically deflected relative to the base 1 by external force; the other end of the arm body section 211 is bent and connected to one end of the buckle body section 212, and the other end of each buckle body section 212 is bent and connected to one side of the guide portion 22 to form a roughly 7-shaped shape (see FIG. 1 ). Figure 8 ), so that the two buckle body sections 212 and the guide portion 22 together constitute the aforementioned buckle portion 21a, and the buckle portion 21a can be elastically deflected relative to each arm body section 211 by external force. It should also be noted that, if Figure 8As shown, the buckle portion 21a and the base 1 are spaced apart and arranged side by side up and down, so that after being guided by the guide portion 22, the other board edge 8a of the circuit board 800 can not only push the buckle spring arm 2 to elastically deflect, but also extend into between the buckle portion 21a and the base 1 and be buckled by the buckle portion 21a.

[0028] There is a spacing space 213 between each buckle elastic arm body 21, and the toggle portion 23 is located between the two buckle elastic arm bodies 21 corresponding to the position of the spacing space 213; one end of the toggle portion 23 is as shown Figure 1 As shown, the other end of the toggle portion 23 is connected to one side of the guide portion 22. Figure 2 As shown, the toggle portion 23 extends between the two arm segments 211; and the toggle portion 23 has a plurality of bending lines 231, and the toggle portion 23 is bent through each bending line 231 and protrudes relative to each buckle segment 212. When the buckle spring arm 2 is to be released from the circuit board 800, an external force can be applied to the toggle portion 23, so that the buckle spring arm 2 and the buckle portion 21a are elastically deflected relative to the base 1, so that the buckle portion 21a can be separated from the other first board edge 8a after the deflection to release the buckle.

[0029] like Figure 1 As shown, one end of each first limiting arm 3 and one end of the aforementioned buckle elastic arm 2 are respectively bent and connected to each other at different locations of the first side 1a, and one end of each second limiting arm 4 is respectively bent and connected to each other at each second side 1b, so that each first limiting arm 3 and each second limiting arm 4 can have the same elastic deflection effect relative to the base 1 as the buckle elastic arm 2, and each first limiting arm 3 and each second limiting arm 4 are upright on three sides of the base 1 to form a U-shaped space (component symbols are not marked). In order to allow the first limiting arm 3 and the second limiting arm 4 to be elastically deflected respectively, there is also a gap G between one side of each first limiting arm 3 and one side of each second limiting arm 4, which are adjacent to each other.

[0030] like Figure 1 as well as Figures 6 to 8 As shown, the other end of each first limiting arm 3 and the other end of each second limiting arm 4 are also bent and connected to a guide portion 31, 41, respectively, so as to have the same effect as the aforementioned guide portion 22 to guide the first board edge 8a and the second board edge 8b of the circuit board 800. It must be noted that the guide portions 22, 31, 41 are inclined relative to the buckle body section 212, the first limiting arm 3 and the second limiting arm 4, respectively, so as to have the effect of centrally guiding them into the aforementioned U-shaped space.

[0031] In addition, if Figure 1 as well as Figures 7 and 8As shown, in the action of fixing the circuit board 800, the buckle spring arm 2 must be pushed first, and then the buckle spring arm 2 and the limiting arms are limited, and the buckle spring arm 2 does not need to limit the circuit board 800. Therefore, the arm section 211 of the buckle spring arm 2 must be inclined at an angle relative to the first limiting arm 3, and the guide portion 22 is as shown in FIG. Figure 8 As shown, one end of the buckle body section 212 protrudes into the U-shaped space relative to the first limiting arm 3 toward the other end.

[0032] In summary, the board edge fixing terminal of the circuit board of the present invention can indeed achieve the expected purpose of use and overcome the problems of the prior art. It fully meets the requirements for application of invention patents. Therefore, an application is filed in accordance with the Patent Law. Please examine and approve the patent in this case in detail to protect the rights of the inventor.

[0033] The above is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the specification and drawings of the present invention are also included in the scope of the rights of the present invention and are hereby stated.

Claims

1. A circuit board edge fixing terminal, used to fix a circuit board on a main board, wherein the circuit board has a first board edge and two second board edges opposite to each other, characterized in that: The board edge fixing terminal is a single-piece item and includes: A base, fixed on the main board and having a first side corresponding to the first board edge and two second sides corresponding to the two second board edges respectively; A buckle elastic arm connected to the first side and having a buckle portion; a first limiting arm connected to the first side; and Two second limiting arms are respectively connected to the two second sides; Wherein, the buckle portion buckles the first board edge correspondingly, the first limiting arm limits the first board edge, and each of the second limiting arms limits the second board edge respectively; The buckle elastic arm comprises at least one buckle elastic arm body, the buckle elastic arm body has an arm body section and a buckle body section, one end of the arm body section is bent and connected to the first side, the other end of the arm body section is bent and connected to one end of the buckle body section, and the buckle body section of the at least one buckle elastic arm body constitutes the buckle portion; The arm body section is inclined relative to the first limiting arm; The buckle elastic arm further comprises a toggle part, the buckle elastic arm body is provided with two, a spacing space is provided between the two buckle elastic arm bodies, and the toggle part is located between the two buckle elastic arm bodies corresponding to the spacing space; The buckle elastic arm further comprises a guide portion, the other end of each buckle body segment is bent and connected to one side of the guide portion, one end of the toggle portion is connected to the one side of the guide portion, and the guide portion and the buckle body segment of each buckle elastic arm body together constitute the buckle portion; The toggle portion has a plurality of bending lines, and the toggle portion protrudes relative to each of the buckle body sections through the plurality of bending lines.

2. The board edge fixing terminal of the circuit board as claimed in claim 1, characterized in that: The buckle spring arm protrudes with a toggle portion, and the buckle spring arm is deflected relative to the base by toggling the toggle portion with an external force, and the buckle portion is separated from the first plate edge by deflecting together with the buckle spring arm.

3. The board edge fixing terminal of the circuit board as claimed in claim 1, characterized in that: One end of the first limiting arm is bent and connected to the first side, one end of each second limiting arm is bent and connected to each second side, the other end of the first limiting arm is also bent and connected to a guide portion, and the other end of each second limiting arm is also bent and connected to a guide portion.

4. The board edge fixing terminal of the circuit board as claimed in claim 3, characterized in that: The first limiting arms are provided in two, the two first limiting arms are both connected to the first side, and the buckle elastic arm is located between the two first limiting arms.

5. The board edge fixing terminal of the circuit board as claimed in claim 4, characterized in that: One side of each of the second limiting arms and one side of each of the first limiting arms are spaced and adjacent to each other.

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