CN211240517U - Fastener for fixing printed circuit board - Google Patents
Fastener for fixing printed circuit board Download PDFInfo
- Publication number
- CN211240517U CN211240517U CN202020138974.7U CN202020138974U CN211240517U CN 211240517 U CN211240517 U CN 211240517U CN 202020138974 U CN202020138974 U CN 202020138974U CN 211240517 U CN211240517 U CN 211240517U
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- CN
- China
- Prior art keywords
- fixing
- circuit board
- fastener
- printed circuit
- top plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
The utility model discloses a fastener for fixing a printed circuit board, which comprises a top plate, side arms and a fixing element, wherein the top plate is provided with a dismounting hole, and the periphery of the top plate is provided with a pressing tongue; the side arm comprises an outer arm and an inner arm, and the lower end of the outer arm is connected with the inner arm; the fixing element comprises a fixing plate and fixing teeth extending from the end of the fixing plate, and the side edge of the outer arm is provided with a limiting groove so that the fixing teeth extend to the outer side of the outer arm from the limiting groove. The utility model discloses a fastener installation is convenient, and the installation is easily dismantled after, and installation technical standard is controlled easily, and when fixed fastening is stable, can cushion the crushing effect of outside vibration to the circuit board, the difficult damage that circuit board crack leads to that takes place.
Description
Technical Field
The utility model relates to a fixed component technical field of plate structure especially relates to a fastener for fixing printed circuit board.
Background
The printed circuit board is one of the control parts commonly used in the industry, and in the prior art, mounting holes are formed in the blank positions of the printed circuit board, and screws penetrate through the mounting holes to be fixed with corresponding bases, so that the purpose of mounting the printed circuit board is achieved. This circuit board mounting method has several problems as follows. Firstly, the operating strength of an installer is high, each printed circuit board needs to be manually aligned with the mounting hole on the screw and the circuit board, then the bolt is screwed in place through an electric tool, and due to the fact that the mounting direction of the screw needs to be manually controlled, the screw is obliquely mounted on the base with a certain probability, and the corresponding technical requirements cannot be met. On the other hand, when the screw is installed manually, the installation tightness is controlled manually by experience, the installation tightness cannot meet the installation technical requirements, and the installation tightness can cause the breakage of the printed circuit board to cause loss. In addition, the printed circuit board mounted by the screws is rigidly connected with the base, and when the base vibrates, the printed circuit board is easy to crack at the mounting holes along with the vibration, so that the circuit board is damaged finally.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a following technical scheme:
a fastener for fixing a printed circuit board is characterized by comprising a top plate, side arms and a fixing element, wherein the top plate is provided with a dismounting hole, the periphery of the top plate is provided with a pressing tongue, the side arms comprise outer arms and inner arms, the upper ends of the outer arms are connected with the top plate, and the lower ends of the outer arms are connected with the inner arms; the fixing element comprises a fixing plate and fixing teeth extending from the end of the fixing plate, and the side edge of the outer arm is provided with a limiting groove so that the fixing teeth extend to the outer side of the outer arm from the limiting groove.
Further, the outer arm of the side arm is connected with the bottom of the inner arm through an arc-shaped piece.
Further, the spatula is arranged horizontally or obliquely; further preferably, the spatula is arranged to be inclined downwards.
Further, the top plate is circular or rectangular; the outer arm is a straight plate or an arc-shaped piece.
Further, the fixed teeth are in a wedge angle or arc shape.
The utility model has the advantages that:
the fastener structure of the utility model is used for assembling the printed circuit board, is convenient to install, only needs to perform an inserting action from top to bottom via the installation hole in the installation process, and is easy to disassemble after installation; the installation technical standard is easy to control, the requirement on experience of installation personnel is low, and the connection strength of each installation hole is consistent after the installation is in place; when fixed fastening is stable, still have shockproof buffer function, adopt the arc to connect between outer arm and the inner arm for the fastener has certain elasticity in the installation direction, can cushion the crushing effect of outside vibration to the circuit board, the difficult damage that circuit board crack leads to that takes place.
Drawings
FIG. 1 is a schematic view of a first embodiment of a fastener construction of the present invention;
FIG. 2 is a schematic view of a second embodiment of the fastener structure of the present invention;
FIGS. 3A-3D are schematic assembly views of the fastener structure of the present invention;
FIG. 4 is an enlarged view of the assembled structure at A in FIG. 3C;
fig. 5 is an enlarged view of the assembled structure at B in fig. 3D.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an embodiment of a fastener for fixing a printed circuit board according to the present invention, including a top plate 1, side arms 2 and a fixing element 3, where the top plate 1 is provided with a detaching hole 11, the periphery of the top plate 1 is provided with a pressing tongue 12, in this embodiment, the pressing tongue 12 is a pair of symmetrical and horizontally disposed outward extending edges of the top plate, the side arms 2 include an outer arm 21 and an inner arm 22, the outer arm 21 is connected to the top plate 1 at an upper end of the outer arm 21, the outer arm 21 is connected to the inner arm 22 at a lower end thereof, and in this embodiment, the outer arm 21 is connected to the inner arm 22 at a bottom thereof by an arc-shaped member; the fixing element 3 comprises a fixing plate 31 and fixing teeth 32 extending from the end of the fixing plate, the fixing teeth 32 are wedge-shaped structures with the lower sides being oblique edges, the fixing plate 31 and the fixing teeth 32 connected with the end portions of the two ends of the fixing plate form a U-shaped bending structure, a limiting groove 23 matched with the width of the fixing element 3 is arranged on the side edge of the outer arm 21, the fixing teeth 32 of the U-shaped bending structure can be clamped in the limiting groove 23, and the limiting groove 23 enables the fixing teeth 32 to penetrate out of the limiting groove and extend to the outer side of the outer arm 21.
In this embodiment, the top plate 1 is a rectangular structure, a pair of side arms 2 are connected to a pair of sides of the rectangular structure, the outer arm 21 is a straight plate vertically disposed downward from the top plate 1, and the pressing tongue 12 is connected to the other pair of sides of the rectangular structure and extends outward. In other embodiments, the top plate 1 may also be circular, and the outer arms 21 are downward arc-shaped pieces symmetrically arranged at two ends of the same diameter on the circumference.
Fig. 2 is a schematic structural diagram of another embodiment of the fastener for fixing a printed circuit board according to the present invention, different from the first embodiment, in this embodiment, the spatula 12 is arranged to be inclined downward from the outer edge of the top plate to the outer end of the spatula. The downward inclined arrangement can form countermeasures between the pressing tongue 12 and the top plate 1, and the pressing tongue 12 and the fixing teeth 32 can form clamping action on the top plate 1 and the upper area of the outer arm 21 above the limiting groove 23 together, so that the fixation is more stable.
Fig. 3A-3D and fig. 4-5 show the installation manner of the fastener structure of the present invention when it is used for assembling printed circuit boards.
The printed circuit board is provided with mounting holes 4 for inserting fasteners at positions to be fixed, such as four corners, the periphery and a plurality of positions in the center of the board, of the printed circuit board, the base is provided with mounting seats 5 at positions corresponding to the mounting holes 4 of the printed circuit board, and the mounting seats 5 are arch structures with fastener structure insertion holes at the tops and hollow front and rear side walls. The printed circuit board and the base are stacked up and down, the mounting hole 4 on the printed circuit board is opposite to the mounting seat 5 on the base, the fastener is directly inserted downwards from the mounting hole 4 of the printed circuit board and passes through the insertion hole at the top of the mounting seat 5 to enter the arched inner part of the mounting seat 5, in the process, the fixing teeth 32 are embedded in the limiting groove 23 and face the front and rear surfaces of the mounting seat 5, the wedge-angle bevel edge of the fixed teeth is pressed inwards by the edge of the hole in the process of passing through the mounting hole 4, so that the fixing piece 3 retracts towards the inner space of the side wall 2 along the limiting groove, after the fixing piece is completely inserted into the mounting seat 5, the fixing teeth 32 extend to the outer side of the outer arm 21 along the limiting groove 23 and penetrate out of the two sides of the arched hollow of the mounting seat 5, and the pressing tongue 12 on the periphery of the top plate 1 is erected on the upper surface of the printed circuit board on the periphery of the mounting hole, so that the fastener is clamped in the arched structure of the mounting seat 5.
When disassembly is required, the forceps are inserted into the gap between the fixing plate 31 and the outer arm 21 from the disassembly hole 11 on the top plate 1 of the fastener, and then the fixing teeth 32 applying force inwards contract to the inner area of the side wall 2, so that the fixing teeth 32 can be contacted with the locking state of the arch, and the fastener is taken out from the installation hole 4 from bottom to top.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "both ends", "both sides", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated elements must have a specific orientation or be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (7)
1. A fastener for fixing a printed circuit board is characterized by comprising a top plate, side arms and a fixing element, wherein the top plate is provided with a dismounting hole, the periphery of the top plate is provided with a pressing tongue, the side arms comprise outer arms and inner arms, the upper ends of the outer arms are connected with the top plate, and the lower ends of the outer arms are connected with the inner arms; the fixing element comprises a fixing plate and fixing teeth extending from the end of the fixing plate, and the side edge of the outer arm is provided with a limiting groove so that the fixing teeth extend to the outer side of the outer arm from the limiting groove.
2. The fastener for fixing a printed circuit board according to claim 1, wherein the outer arm of the side arm and the bottom of the inner arm are connected by an arc-shaped member.
3. The fastener for fixing a printed circuit board according to claim 1, wherein the depressing tongue is disposed horizontally or obliquely.
4. A fastener for securing a printed circuit board according to claim 3, wherein the depressing tongue is provided obliquely downward.
5. The fastener for securing a printed circuit board according to claim 1, wherein the top plate is circular or rectangular.
6. A fastener for securing a printed circuit board according to claim 1 or 5, wherein the outer arm is a straight plate or an arc.
7. The fastener for fixing a printed circuit board according to claim 1, wherein the fixing teeth are in a wedge angle or a circular arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020138974.7U CN211240517U (en) | 2020-01-21 | 2020-01-21 | Fastener for fixing printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020138974.7U CN211240517U (en) | 2020-01-21 | 2020-01-21 | Fastener for fixing printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211240517U true CN211240517U (en) | 2020-08-11 |
Family
ID=71925541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020138974.7U Active CN211240517U (en) | 2020-01-21 | 2020-01-21 | Fastener for fixing printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211240517U (en) |
-
2020
- 2020-01-21 CN CN202020138974.7U patent/CN211240517U/en active Active
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |