CN205017783U - Shielding case - Google Patents
Shielding case Download PDFInfo
- Publication number
- CN205017783U CN205017783U CN201520827448.0U CN201520827448U CN205017783U CN 205017783 U CN205017783 U CN 205017783U CN 201520827448 U CN201520827448 U CN 201520827448U CN 205017783 U CN205017783 U CN 205017783U
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- Prior art keywords
- shielding case
- low temperature
- tin cream
- temperature tin
- case body
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses a shielding case, including shielding case body, conductively -closed circuit board and a plurality of low temperature tin cream, a plurality of low temperature tin cream evenly distributed be in the shielding case body on, the low temperature tin cream be surface form connection through the reflow soldering and be in the shielding case body on, the shielding case body pass through a plurality of low temperature tin creams with conductively -closed circuit board contact connect. The utility model discloses thereby realize face contact greatly reduced contact failure's possibility to the point contact of solid through softer tin cream with traditional solid, strengthened shielding case's shielding property.
Description
Technical field
The utility model relates to radio frequency and produces equipment field, particularly relates to a kind of shielding case.
Background technology
Traditional shielding case equipment technology is that the aluminum hull of direct milling is screwed on the equipment of needs shielding, it is face contact that such solid seems the method for attachment that solid direct physical contacts, and in fact because the way of contact that the metal-back surface unequal reason of fine irregularities is such is point cantact in fact, can easily causes shielding case loose contact and cause shielding properties to be deteriorated like this.
Utility model content
The purpose of this utility model: provide a kind of shielding case, can solve the loose contact problem of shielding case equipment.
To achieve these goals, the technical solution of the utility model is:
A kind of shielding case, comprises shielding case body, conductively-closed circuit board and multiple low temperature tin cream; Described multiple low temperature tin creams are evenly distributed on described shielding case body, and described low temperature tin cream is that planar is connected on described shielding case body by Reflow Soldering; Described shielding case body is connected with described conductively-closed circuit board contacts by described multiple low temperature tin cream.
Above-mentioned shielding case, wherein, the low temperature tin cream of described planar is formed by the thawing of granular low temperature tin cream grain.
Above-mentioned shielding case, wherein, the thickness of described low temperature tin cream is 0.02mm.
Above-mentioned shielding case, wherein, the edge of the low temperature tin cream described in adjacent two contacts with each other.
Traditional solid is realized face to the point cantact of solid by softer tin cream and contacts thus the possibility substantially reducing loose contact by the utility model, strengthens the shielding properties of shielding case.
Accompanying drawing explanation
Fig. 1 is the exploded view of the utility model shielding case.
Embodiment
Embodiment of the present utility model is further illustrated below in conjunction with accompanying drawing.
Refer to shown in accompanying drawing 1, a kind of shielding case, comprise shielding case body 1, conductively-closed circuit board 2 and multiple low temperature tin cream 3; Described multiple low temperature tin creams 3 are evenly distributed on described shielding case body 1, and described low temperature tin cream 3 is that planar is connected on described shielding case body 1 by Reflow Soldering; Described shielding case body 1 to be contacted with described conductively-closed circuit board 2 by described multiple low temperature tin cream 3 and connects.
The low temperature tin cream 3 of described planar is formed by the thawing of granular low temperature tin cream grain.
The thickness of described low temperature tin cream 3 is 0.02mm.
The edge of the low temperature tin cream 3 described in adjacent two contacts with each other.
First the arrangement model going out low temperature tin cream grain according to the areal calculation after the volume of low temperature tin cream grain and deformation drives steel mesh.Such as, before compressive deformation, the height of low temperature tin cream grain is 0.18mm, be highly 0.02mm after compressive deformation, the shape approximation of low temperature tin cream 3 is cube, then cubature formula V=H*S (H is height, and S is area), then the area S2=S1*0.18/0.02=9S1 after deformation, area becomes original 9 times, and the length of side becomes original 3 times.Therefore, the distance low temperature tin cream grain before deformation being arranged into two length of sides in interval can allow the low temperature tin cream 3 of the planar of deformation contact with each other.Then steel mesh mould is opened with the result calculated.
The temperature that low temperature tin cream grain melts is about 200 DEG C, contacts, thus increase the radio frequency conduction that contact area enhances circuit so shielding case body 1 becomes face with conductively-closed circuit board 2 from original point cantact.
In description of the present utility model, it will be appreciated that, term " on ", the orientation of the instruction such as " thickness " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In sum, traditional solid is realized face to the point cantact of solid by softer tin cream and contacts thus the possibility substantially reducing loose contact by the utility model, strengthens the shielding properties of shielding case.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure transformation utilizing the utility model description to do; or directly or indirectly use the technical field being attached to other Related products, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. a shielding case, is characterized in that: comprise shielding case body, conductively-closed circuit board and multiple low temperature tin cream; Described multiple low temperature tin creams are evenly distributed on described shielding case body, and described low temperature tin cream is that planar is connected on described shielding case body by Reflow Soldering; Described shielding case body is connected with described conductively-closed circuit board contacts by described multiple low temperature tin cream.
2. shielding case according to claim 1, is characterized in that: the low temperature tin cream of described planar is formed by the thawing of granular low temperature tin cream grain.
3. shielding case according to claim 1, is characterized in that: the thickness of described low temperature tin cream is 0.02mm.
4. shielding case according to claim 1, is characterized in that: the edge of the low temperature tin cream described in adjacent two contacts with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827448.0U CN205017783U (en) | 2015-10-23 | 2015-10-23 | Shielding case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827448.0U CN205017783U (en) | 2015-10-23 | 2015-10-23 | Shielding case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205017783U true CN205017783U (en) | 2016-02-03 |
Family
ID=55216364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520827448.0U Active CN205017783U (en) | 2015-10-23 | 2015-10-23 | Shielding case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205017783U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107835626A (en) * | 2017-09-28 | 2018-03-23 | 深圳市信维通信股份有限公司 | A kind of shaping of radome and installation method |
-
2015
- 2015-10-23 CN CN201520827448.0U patent/CN205017783U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107835626A (en) * | 2017-09-28 | 2018-03-23 | 深圳市信维通信股份有限公司 | A kind of shaping of radome and installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |