CN205546342U - Fixing device and communications facilities - Google Patents
Fixing device and communications facilities Download PDFInfo
- Publication number
- CN205546342U CN205546342U CN201620105021.4U CN201620105021U CN205546342U CN 205546342 U CN205546342 U CN 205546342U CN 201620105021 U CN201620105021 U CN 201620105021U CN 205546342 U CN205546342 U CN 205546342U
- Authority
- CN
- China
- Prior art keywords
- printed circuit
- circuit board
- threaded fastener
- fixing device
- head
- Prior art date
- 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.)
- Expired - Fee Related
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- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
The utility model provides a fixing device and communications facilities is applicable to printed circuit board, include: threaded fastener, threaded fastener include an operatable head, match threaded fastener's through -hole, set up on printed circuit board for cooperation threaded fastener is fixed in printed circuit board on the casing, at least one bump sets up on the printed circuit board around the through -hole to head place direction when threaded fastener inserts is used for cooperating cephalization frictional force restriction head to rotate. Its technical scheme's beneficial effect lies in, through the fastener can be directly with printed circuit board is firm be fixed in the lower cover panel on, overcome the casing body when lasting of among the prior art being fixed in printed circuit board equipment, need to increase that flat fill up or bullet pads results in the operation simple and convenient ascending defect of material cost just inadequately.
Description
Technical field
This utility model relates to the mounting technology field of communication equipment, particularly relates to a kind of fixing device and communication apparatus.
Background technology
In the design process of communication equipment, often because the requirement in structure or in external shape, need to be fixed on the shell body of equipment printed circuit board.Printed circuit board is fixed on the shell body of equipment by its common mechanical tooth screw of existing many employings in concrete operating process, but this fixed form is the most insecure, machinery tooth screw easily gets loose, printed circuit board is caused easily to loosen on the shell body of equipment, the problems referred to above can be solved under normal circumstances by the method increasing plain cushion and spring washer between machinery tooth screw and printed circuit board, also have use resistance to fall screw or the glue that screws method solve the problems referred to above, but these methods are not the easiest, and material cost can be caused to rise.
Summary of the invention
For prior art is fixed the problems referred to above that printed circuit exists, now provide a kind of simple to operation and that printed circuit board can not fixedly secured by plain cushion and spring washer fixing device and communication apparatus.
A kind of fixing device, it is adaptable to printed circuit board, including:
Threaded fastener, described threaded fastener includes an exercisable head；
Mate the through hole of described threaded fastener, be arranged on printed circuit board, in order to coordinate described threaded fastener to be fixed in a casing by described printed circuit board；
At least one salient point, is arranged on the described printed circuit board around described through hole, and towards described threaded fastener insert time direction, described head place, in order to coordinate described head formed frictional force limit described head rotation.
Preferably, described threaded fastener is bolt, also includes that nut, described nut are arranged in described casing, in order to coordinate described bolt to fix described printed circuit board.
Preferably, described casing being provided with blind hole, described nut is fixedly arranged in described blind hole.
Preferably, described salient point arranges multiple, and multiple described salient point uniform ring are around in around described through hole.
Preferably, described salient point is formed by solder.
Preferably, described solder is scolding tin.
Preferably, described through hole is provided around the pad of corresponding described bump location.
Preferably, described salient point is hemispherical.
Also include a kind of communication apparatus, including printed circuit board and casing, also include described fixing device.
Technique scheme has the advantage that or beneficial effect: can be directly firmly fixed in casing by printed circuit board by threaded fastener, overcome time printed circuit board is fixed in the casing of equipment by prior art, need to increase plain cushion or spring washer causes operating the defect that easy not and material cost rises.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the embodiment of a kind of fixing device of this utility model；
Fig. 2 is the explosive view of the embodiment of a kind of fixing device of this utility model.
In description above, each reference represents explanation:
(1), threaded fastener；(2), printed circuit board；(3), casing；(11), head；(12), nut；(21), through hole；(22), salient point；(23), pad.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained on the premise of not making creative work, broadly fall into the scope of this utility model protection.
It should be noted that in the case of not conflicting, the embodiment in this utility model and the feature in embodiment can be mutually combined.
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as restriction of the present utility model.
As it is shown in figure 1, the embodiment of a kind of fixing device, it is adaptable to printed circuit board, including:
Threaded fastener 1, threaded fastener 1 includes an exercisable head 11；
The through hole 21 of coupling threaded fastener 1, is arranged on printed circuit board 2, is fixed in a casing 3 by printed circuit board 2 in order to matching thread securing member 1；
At least one salient point 22, is arranged on the printed circuit board 2 around through hole 21, and towards threaded fastener 1 insert time direction, head 11 place, in order to engagement head 11 formed frictional force limit head 11 rotate.
In technique scheme, by coordinating between threaded fastener 1 and the through hole 21 being arranged on printed circuit board 2, printed circuit board 2 is fixed in casing 3, it is provided with salient point 22 on the printed circuit board 2 around through hole 21, the rotation forming the head 11 that frictional force limits threaded fastener 1 is coordinated with the head 11 of threaded fastener 1, when threaded fastener 1 is locked, the head 11 of threaded fastener 1 contacts with salient point 22, the frictional force formed between the head 11 of salient point 22 and threaded fastener 1 limits the head 11 of threaded fastener 1 and rotates, thus can prevent threaded fastener 1 from getting loose in locking state.Overcoming to be fixed in casing 3 by printed circuit board 2 in prior art to need to increase anti-loose element or the operation inconvenience using Anti-release screw to bring and the defect of cost increase.
In one preferably embodiment, above-mentioned through hole 2 is as shown in Figure 2.
In one preferably embodiment, as in figure 2 it is shown, threaded fastener 1 is bolt, also includes that nut 12, nut 12 are arranged in casing 3, fix printed circuit board 2 in order to fitted bolt.
In one preferably embodiment, casing 3 being provided with blind hole, nut 12 is fixedly arranged in blind hole.
In technique scheme, by the blind hole arranged in casing 3, can be fixed on non-rotatable for nut 12 in casing 3, and then bolt correspondence can be made through through hole 21 on printed circuit board 2, printed circuit board 2 can be fixed in casing 3 with coordinating between nut 12.
Further, when bolt rotates when rotary motion to predetermined stroke towards nut 12, the head 11 of bolt contacts with the salient point 22 on the printed circuit board 2 being arranged on around through hole 21, and then produces the rotation that frictional force limits the head 11 of bolt.
In one preferably embodiment, salient point 22 arranges multiple, and multiple salient point 22 uniform ring are around in around through hole 21.
In one preferably embodiment, salient point 22 is hemispherical.
In technique scheme, by being provided with salient point 22 uniformly around printed circuit board 2 through hole 21, and each salient point 22 is the most hemispherical, thus when threaded fastener 1 fixes printed circuit board 2, make threaded fastener 1 can do between the head 11 operated and salient point 22 contact more uniformly and contact area is bigger, so that forming sufficiently large frictional force between the head 11 of salient point 22 and threaded fastener 1, effectively limit the rotation of the head 11 of threaded fastener 1.
In one preferably embodiment, salient point 22 is formed by solder.
In one preferably embodiment, solder is scolding tin.
In one preferably embodiment, through hole 21 is provided around the pad 23 of corresponding salient point 22 position.
In technique scheme, by being provided around pad 23 at through hole 21, and then on pad 23, salient point 22 can be correspondingly formed with solder, wherein solder can use scolding tin, because scolding tin has fusing point relatively low and applies feature widely, pad 23 forms, with solder, the technology that salient point 22 is well known to those skilled in the art, therefore repeats no more.
In the technical program, also include a kind of communication apparatus, including printed circuit board 2 and casing 3, also include above-mentioned fixing device.
In a particular embodiment, under the embodiment that threaded fastener 1 is bolt, when printed circuit board 2 is fixed in casing 3 by needs, by the head 11 of operation bolt, bolt can be passed the through hole 21 of printed circuit board 2, and correspondence enters in the nut 12 being arranged on housing, when bolt is towards the stroke that nut 12 rotary motion is the most predetermined, the salient point 22 being arranged on printed circuit board 2 contacts closely with the head 11 of bolt, thus can form the rotation that frictional force effectively limits the head 11 of bolt.
Further, it is arranged on uniformly on the printed circuit board 2 around through hole 21 including multiple hemispherical salient points 22, so that the contact area more ambassador obtained between the head 11 of bolt and salient point 22 is more uniformly stressed, can effectively limit the rotation of the head 11 of bolt.
In technique scheme, threaded fastener 1 is preferably bolt, but being not limited to bolt can be also self-tapping screw.
Technique scheme has the advantage that or beneficial effect: can be directly firmly fixed in casing 3 by printed circuit board 2 by threaded fastener 1, overcome time printed circuit board 2 is fixed in the casing 3 of equipment by prior art, need to increase plain cushion or spring washer causes operating the defect that easy not and material cost rises.
The foregoing is only this utility model preferred embodiment; not thereby embodiment of the present utility model and protection domain are limited; to those skilled in the art; the equivalent done by all utilization this utility model description and diagramatic content and the scheme obtained by obvious change should be can appreciate that, all should be included in protection domain of the present utility model.
Claims (9)
1. a fixing device, it is adaptable to printed circuit board, it is characterised in that including:
Threaded fastener (1), described threaded fastener (1) includes an exercisable head (11)；
Mate the through hole (21) of described threaded fastener (1), be arranged on printed circuit board (2),
In order to coordinate described threaded fastener (1) to be fixed in a casing (3) by described printed circuit board (2)；
At least one salient point (22), is arranged at described through hole (21) described printed circuit board (2) around
On, and towards described threaded fastener (1) insert time described head (11) direction, place, in order to coordinate
Described head (11) forms frictional force and limits described head (11) rotation.
Fixing device the most according to claim 1, it is characterised in that described threaded fastener (1)
For bolt, also include that nut (12), described nut (12) are arranged in described casing (3), in order to
Described bolt is coordinated to fix described printed circuit board (2).
Fixing device the most according to claim 2, it is characterised in that described casing sets on (3)
Being equipped with blind hole, described nut (12) is fixedly arranged in described blind hole.
Fixing device the most according to claim 1, it is characterised in that described salient point (22) is arranged
Multiple, multiple described salient point (22) uniform ring are around in described through hole (21) around.
Fixing device the most according to claim 1, it is characterised in that described salient point (22) is by welding
Material is formed.
Fixing device the most according to claim 5, it is characterised in that described solder is scolding tin.
Fixing device the most according to claim 5, it is characterised in that described through hole (21) is around
It is provided with the pad (23) of corresponding described salient point (22) position.
Fixing device the most according to claim 1, it is characterised in that described salient point (22) is in half
Spherical.
9. a communication apparatus, including printed circuit board (2) and casing (3), it is characterised in that also
Including the fixing device as described in claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105021.4U CN205546342U (en) | 2016-02-01 | 2016-02-01 | Fixing device and communications facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105021.4U CN205546342U (en) | 2016-02-01 | 2016-02-01 | Fixing device and communications facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205546342U true CN205546342U (en) | 2016-08-31 |
Family
ID=56776443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620105021.4U Expired - Fee Related CN205546342U (en) | 2016-02-01 | 2016-02-01 | Fixing device and communications facilities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205546342U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978882A (en) * | 2017-11-08 | 2018-05-01 | 西安易朴通讯技术有限公司 | A kind of terminal |
-
2016
- 2016-02-01 CN CN201620105021.4U patent/CN205546342U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978882A (en) * | 2017-11-08 | 2018-05-01 | 西安易朴通讯技术有限公司 | A kind of terminal |
| CN107978882B (en) * | 2017-11-08 | 2024-01-23 | 西安易朴通讯技术有限公司 | Terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20190201 |