TW201620357A - Fixed device - Google Patents

Abstract

A secure device is used for securing a printed circuit board assembly. The secure device includes a fixed base and a plurality of removable securing member. The fixed base includes a base body, a plurality of locking structures and fixed structures. The fixed structure has a key-shape hole. Each of the removable securing members respectively includes a post, an interference portion and a lock portion. When the printed circuit board assembly is operated to be secured by the removable securing members, a first side of the printed circuit board assembly needs to be locked by the locking structure firstly; the interference portion of each removable securing member needs to be inserted into the key-shape hole, and interfered with the key-shape hole after the respective of the removable securing members is turned along a rotation direction, thereby to make the printed circuit board assembly secured by the removable securing members.

Description

Fixing device for circuit board assembly

The present invention relates to a fixing device for a circuit board assembly, and more particularly to a fixing device for a circuit board assembly for fixing a circuit board by using a separate fixing member.

In general, in the field of electronic engineering, when a printed circuit board assembly (PCA) is mounted, the mounting and fixing of the circuit board assembly is performed by means of screw locking. However, although the screw locking method can effectively fix the circuit board assembly, it is necessary to use an auxiliary tool such as a screwdriver when installing and disassembling, and it takes a lot of time to install and disassemble, and the circuit board assembly is manufactured. It is necessary to first provide a through hole on the circuit board, thereby wasting the internal wiring space of the circuit board.

In order to solve the problems in the use of the lock wire to lock the circuit board assembly, the prior art further uses a snap member provided on the base or the frame to mount the fixed circuit board assembly; however, the buckle is fastened. The way to fix the circuit board assembly can be performed without additional tools, but the mounting of the snap fasteners tends to damage the electronic components on the circuit board assembly. In addition, since the snap member is placed on the base or the machine The size of the circuit board assembly that can be installed is therefore limited and cannot replace the circuit board components of different sizes, or the replacement circuit board assembly needs to reserve a space for the buckle, so that the wiring space of the printed circuit board is relatively cut back.

In view of the prior art, the use of screws to secure the circuit board assembly has the need for an auxiliary tool to be installed and removed, and the installation and disassembly takes a long time and the through holes provided in the circuit board reduce the internal wiring space of the circuit board. The problem is that there are also problems in that the snap member is used to fasten the electronic components on the circuit board assembly and the circuit board assembly of different sizes is not easily replaced by the snap fasteners.

Accordingly, it is a primary object of the present invention to provide a fixing device for a circuit board assembly for securing a circuit board assembly with a separate fixing member so that the circuit board does not need to be provided with a through hole.

In view of the above, the present invention provides a fixing device for a circuit board assembly for fixing a circuit board assembly, and the circuit board assembly has a circuit board body and a circuit. The board body has a first side and a second side opposite to each other, and the fixing device of the circuit board assembly comprises a fixed base and a plurality of separate fixing members.

The fixed base comprises a base body, a plurality of snap structures and a plurality of fixed structures. A plurality of snap structures are symmetrically disposed on both sides of the base body for engaging the first side. a plurality of fixed structures are symmetrically disposed on both sides of the base body and spaced apart from the buckle structure, and The fixed structures each include a keyhole. A plurality of separate fixing members are used for fixing the second side, and the separate fixing members each include a fixing body, a limiting portion and a buckle portion. The limiting portion is disposed at one end of the fixing body and corresponds to the key hole. The fastening portion is disposed at the other end of the fixing body relative to the limiting portion for engaging the second side.

Wherein, when the first side of the circuit board body is fastened to the buckle structure, the limiting portion of the separate fixing member is correspondingly disposed in the key hole of the fixed structure, and the separate fixing member is rotated along The direction of rotation is such that the limiting portion of the separate fixing member is fastened to the fixing structure, and the fastening portion of the separate fixing member is fastened to the second side, thereby fixing the circuit board assembly to the fixing base.

An auxiliary technical means derived from the above-mentioned technical means is that the fixing structure further comprises a first stopping portion and a second stopping portion, and the first stopping portion and the second stopping portion are symmetrically disposed on the key The diagonal of the hole is used to limit the range of rotation of the buckle portion.

An auxiliary technical means derived from the above-mentioned technical means is that the separate fixing member further comprises a supporting portion disposed on the other side of the fixing body relative to the locking portion for abutting against the fixing structure. Preferably, the fixing structure further comprises a positioning protrusion for abutting the support portion.

An auxiliary technical means derived from the above-mentioned technical means is that the second side of the circuit board body has a two-sided concave edge, and the two-edge concave edge corresponds to the opposite arrangement of the fixed structure.

The specific embodiments of the present invention will be further described by the following examples and drawings.

100‧‧‧ Fixtures for circuit board assemblies

1‧‧‧Fixed base

11‧‧‧Base body

12a, 12b, 12c, 12d‧‧‧ buckle structure

13a, 13b, 13c, 13d, 13e, 13f‧‧‧ fixed structure

131f‧‧‧ keyhole

132f‧‧‧First stop

133f‧‧‧second stop

134e‧‧‧ positioning bumps

2‧‧‧Separate fixing parts

21‧‧‧Fixed body

22‧‧‧Limited

23‧‧‧Snaps

24‧‧‧Support

X1‧‧‧first axis

X2‧‧‧second axis

200a, 200b, 200c‧‧‧ circuit board assemblies

201a‧‧‧ first side

202a‧‧‧Second side

203a‧‧‧Corner edge

R‧‧‧direction of rotation

1 is a perspective view showing a fixing device of a circuit board assembly according to a preferred embodiment of the present invention; and a second perspective view showing a fixing device of a circuit board assembly according to a preferred embodiment of the present invention; The figure shows a perspective view of a separate fixing member provided by a preferred embodiment of the present invention; the fourth figure shows a schematic view of a fixing device of the circuit board assembly mounted on the circuit board assembly of the present invention; and the fifth figure shows the circuit board assembly of the present invention. FIG. 6 is a schematic enlarged plan view showing a front portion of a fixing device of a circuit board assembly according to a preferred embodiment of the present invention; and a seventh drawing showing another circuit board assembly mounted and fixed; A schematic view of a fixture for a circuit board assembly.

Please refer to the first to sixth figures. The first figure shows a schematic view of a fixing device of a circuit board assembly according to a preferred embodiment of the present invention; the second figure shows the circuit provided by the preferred embodiment of the present invention. 3D is a perspective view showing a fixing device of a board assembly; the third drawing is a perspective view showing a fixing device according to a preferred embodiment of the present invention; and the fourth drawing is a perspective view showing a fixing device of the circuit board assembly mounted on the circuit board assembly of the present invention. 5 is a perspective view showing an enlarged rear surface portion of a fixing device of the circuit board assembly of the present invention; and a sixth embodiment showing a front view of a front portion of the fixing device of the circuit board assembly according to the preferred embodiment of the present invention. intention.

As shown, a fixing device 100 for a circuit board assembly includes a fixed base 1 and six separate fixing members 2 (only one is shown).

The fixed base 1 includes a base body 11, four snap structures 12a, 12b, 12c, 12d and six fixing structures 13a, 13b, 13c, 13d, 13e, 13f.

The four snap structures 12a, 12b, 12c, and 12d are symmetrically disposed on both sides of the base body 11. The six fixing structures 13a, 13b, 13c, 13d, 13e, 13f are symmetrically disposed on both sides of the base body 11 and are spaced apart from the snap structures 12a, 12b, 12c, 12d, and in this embodiment The fastening structures 12a, 12c are located on the same side as the fixing structures 13a, 13c, and the fixing structures 13a, 13c are located between the fastening structures 12a, 12c; oppositely, the fastening structures 12b, 12d are located with the fixing structures 13b, 13d The same side, and the fixed structures 13b, 13d are located between the snap structures 12b, 12d.

For example, the fixed structure 13f includes a key hole 131f, a first stop portion 132f and a second stop portion 133f. The first stop portion 132f and the second stop portion 133f are symmetrically disposed on the first stop portion 132f. The opposite of the keyhole 131f.

The six separate fixing members 2 each include a fixing body 21 , a limiting portion 22 , a locking portion 23 and a supporting portion 24 . The limiting portion 22 is disposed at one end of the fixing body 21 and corresponds to the key hole 131f. The limiting portion 22 is formed by the end portion of the fixing body 21 protruding outward along the first axis X1 and protruding from the two protrusions (not shown) to form a non-circular structure corresponding to the key hole 131f. The portion 22 can be worn in the key hole 131f, and After the rotation, it is locked to the key hole 131f.

The latching portion 23 is disposed at the other end of the fixing body 21 with respect to the limiting portion 22 . The support portion 24 is disposed on the other side of the fixing body 21 with respect to the buckle portion 23 for abutting against the fixing structure 13f. The latching portion 23 and the supporting portion 24 extend along a second axis X2 perpendicular to the first axis X1.

In addition, taking the fixing structure 13e as an example, the fixing structure 13e further includes a positioning protrusion 134e for abutting against the supporting portion 24.

In practical use, the fixture 100 of the circuit board assembly is used to mount and fix the two circuit board assemblies 200a, 200b. The circuit board assembly 200a has a circuit board body (not shown). The circuit board body has a first side 201a and a second side 202a opposite to each other, and the second side has a two-sided edge. 203a (only one is shown in the figure), and the two-edge concave edge 203a corresponds to the fixed structure 13a, 13b. When the user wants to mount and fix the circuit board assembly 200a to the base body 11, the first side 201a of the circuit board body is first buckled to the buckle structures 12a, 12b, and then the two are separately fixed. The limiting portion 22 of the member 2 is correspondingly disposed through the key holes (not shown) of the fixing structures 13a, 13b, and the separating fixing member 2 is rotated in a rotating direction R to make the two separate fixing members 2 The limiting portions 22 are respectively fastened to the fixing structures 13a and 13b, and the locking portions 23 of the two separate fixing members 2 are respectively fastened to the second side edges 202a, thereby fixing the circuit board assembly 200a to the fixing base 11. .

It should be noted that since the locking portion 23 and the supporting portion 24 are perpendicular to the extending direction of the limiting portion 22, the stability of the fixed fixing plate assembly 200a, 200b can be effectively improved. In other embodiments The buckle portion 23, the support portion 24, and the stopper portion 22 may extend in the same direction, but the stress is easily concentrated.

Similarly, the circuit board assembly 200b is fastened to the first side (not shown) by the snap structures 12c, 12d, and then inserted into the fixed structures 13e, 13f by using two separate fixing members 2, respectively. The two separate fixing members 2 are rotated in the rotational direction R such that the latching portion 23 is caught by the second side of the circuit board assembly 200b (not shown). Wherein, when the split type fixing member 2 is rotated in the rotation direction R, the rotation range of the buckle portion is restricted by the first stopper portion 132f and the second stopper portion 133f.

In addition, as shown in the sixth figure, in the process of rotating the buckle portion 23 above the circuit board assembly 200b, the support portion 24 also rotates in the rotation direction R and slides over the positioning protrusion 134e, thereby reaching Connected to the positioning bump 134e.

Please refer to FIG. 7 for further reference. FIG. 7 is a perspective view showing the fixing device of another circuit board assembly mounted on the circuit board assembly. As shown in the figure, when the above-mentioned circuit board assembly 200a is to be replaced with the circuit board assembly 200c, it is only necessary to rotate the separate fixing member 2 originally disposed in the fixed structure 13a, 13b in the opposite direction of the rotation direction R to separate. The limiting portion 22 of the fixing member 2 is unfixed, and the separate fixing member 2 and the circuit board assembly 200a are removed. At this time, the circuit board assembly 200c can be mounted and fixed by the above-mentioned mounting method, and the difference lies only in the circuit. The board assembly 200c is larger in size than the circuit board assembly 200a, so that the separate fixing members 2 are provided to the fixed structures 13c, 13d, that is, the circuit board assembly 200c can be fixed in the same manner.

In summary, the present invention is based on the prior art utilizing a screw-locking circuit board assembly and a manner of snapping a circuit board assembly with a snap fastener. The fixing device for the circuit board assembly is to fix the circuit board assembly by using the fixing structure and the separate fixing member, so that the utility model not only has the advantage of not using the auxiliary tool, but also can adjust the separation according to the size of the different circuit board components. The fixing member is disposed at the position of the fixing structure, which effectively increases the convenience in use.

The features and spirit of the present invention will be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed.

100‧‧‧ Fixtures for circuit board assemblies

1‧‧‧Fixed base

11‧‧‧Base body

12a, 12b, 12c, 12d‧‧‧ buckle structure

2‧‧‧Separate fixing parts

Claims (5)

A fixing device for a circuit board assembly for mounting and fixing a circuit board assembly, the circuit board assembly having a circuit board body having a first side and a second side opposite to each other, the circuit The fixing device of the board assembly comprises: a fixed base, comprising: a base body; a plurality of snap structures are symmetrically disposed on two sides of the base body for engaging the first side; and a plurality of The fixing structure is symmetrically disposed on two sides of the base body and spaced apart from the buckle structures, and the fixing structures each include a key hole; and a plurality of separate fixing members are used for Fixing the second side, and the separate fixing members each comprise: a fixing body; a limiting portion is disposed at one end of the fixing body and corresponding to the key hole; and a buckle portion, The second side of the fixing body is fastened to the other side of the fixing body, wherein when the first side of the circuit board body is fastened to the buckle structure, Separate fixing parts The limiting portion is correspondingly disposed in the key hole of the fixing structure, and the separated fixing members are rotated in a rotating direction, so that the limiting portion of the separate fixing members is fastened to the plurality of fixing portions Fixing the structure, and fastening the buckle portion of the separate fixing members to the second The side edge is used to fix the circuit board assembly to the fixed base. The fixing device of the circuit board assembly of claim 1, wherein the fixing structure further comprises a first stopping portion and a second stopping portion, the first stopping portion and the second stopping portion The blocking portion is symmetrically disposed at a diagonal of the keyhole for limiting the range of rotation of the locking portion. The fixing device of the circuit board assembly of the first aspect of the invention, wherein the plurality of fixing members further comprise a supporting portion disposed on the other side of the fixing body relative to the buckle portion To abut against the fixed structures. The fixing device of the circuit board assembly of claim 3, wherein the fixing structure further comprises a positioning protrusion for abutting the supporting portion. The fixing device of the circuit board assembly of claim 1, wherein the second side of the circuit board body has a two-sided concave edge corresponding to the fixed structure. Both of the relative settings.