CN103547058A - Fixing clamp for shield can of printed circuit board - Google Patents
Fixing clamp for shield can of printed circuit board Download PDFInfo
- Publication number
- CN103547058A CN103547058A CN201210244394.6A CN201210244394A CN103547058A CN 103547058 A CN103547058 A CN 103547058A CN 201210244394 A CN201210244394 A CN 201210244394A CN 103547058 A CN103547058 A CN 103547058A
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- CN
- China
- Prior art keywords
- radome
- flexure strip
- sidewall
- circuit board
- printed circuit
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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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Abstract
The invention discloses a fixing clamp for a shield can of a printed circuit board. The fixing clamp comprises a bottom and a pair of elastic pieces. The elastic pieces oppositely extend upwards from the two sides of the bottom to elastically support the side wall of the shield can. The fixing clamp is characterized in that cuts are formed at the center of each elastic piece when the left-right direction of the corresponding elastic piece is taken as a benchmark, so that multiple contact portions are formed between the side wall of the shield can and each elastic piece. The cuts are cut from the upper ends of the elastic pieces to the lower side direction. The disclosed fixing clamp has the cuts, and multiple contacting portions are formed between the fixing clamp and the side wall of the shield can when the side wall of the shield can is inserted, so that the shield can can be prevented from shedding.
Description
Technical field
The use stationary fixture of the radome that the present invention relates to use on printed circuit board (PCB), more particularly, relates to a kind of radome stationary fixture that also can easily prevent the printed circuit board (PCB) of disengaging when radome could not be inserted into the original position of stationary fixture.
Background technology
Usually, electromagnetic wave, as radio communication or radar have useful one side, also can cause adverse effect to the action of electronic equipment on the contrary, and this phenomenon is electromagnetic interference (EMI:Electromagnetic Interference) phenomenon.
Described electromagnetic interference not only causes the noise of electronic equipment, also harmful to human body.
So, recently to as be arranged at the radome (Shield Can) that covers regulation on the electronic devices such as semiconductor element of actual load on the printed circuit board (PCB) of electronic equipment internal, the electromagnetic interference producing from electronic device with blocking-up, thus avoid the action of other electronic equipment of this electronic equipment and adjacency influenced.
Described radome adopts the open box-shaped in lower end conventionally, so that can overlay electronic device.For fixing this radome, on printed circuit board (PCB), be provided with stationary fixture.
Fig. 1 shows existing stationary fixture.
As shown in Figure 1, existing stationary fixture 1 is included in a pair of flexure strip 3 that extend to upside relative to one another 2 both sides, bottom, so that with the sidewall of pincerlike elastic bearing radome.
As mentioned above, described flexure strip 3 is with the sidewall of pincerlike elastic bearing radome, and existing stationary fixture 1 is covered with four contacts site with shielding.Therefore, when the state departing from slightly of putting with ex situ between the sidewall of the radome flexure strip 3 at stationary fixture 1 inserts, because the position contacting between stationary fixture 1 and radome only has four, so the chucking power of the stationary fixture 1 of elastic bearing radome is less, the problem that therefore exists radome to depart from from stationary fixture 1.
Summary of the invention
So the present invention proposes in order to solve described problem, the object of the invention is to, provide a kind of radome stationary fixture that can prevent the printed circuit board (PCB) that radome departs from from stationary fixture.
In order to realize described object, the radome stationary fixture of printed circuit board (PCB) of the present invention, comprise: bottom, from the both sides of described bottom, to upside, extend a pair of flexure strip with the sidewall of elastic bearing radome relative to one another, it is characterized in that, be formed with otch take the middle body of the left and right directions of described each flexure strip described each flexure strip during as benchmark, to form a plurality of contacts site between the sidewall of described radome and described each flexure strip, described otch cuts from the downward side direction in upper end of described each flexure strip.
The bottom of described otch forms arc, the stress being produced when disperseing the sidewall of radome described in described each flexure strip elastic bearing.
The middle body of above-below direction during as benchmark of take at described each flexure strip includes the outstanding clamping part forming to the inside, and in order to the sidewall of radome described in elastic bearing, the lower end part of described otch is in the downside of described clamping part.
As mentioned above, the radome stationary fixture of printed circuit board (PCB) of the present invention, owing to being formed with otch on each flexure strip, thus the area minimizing that while inserting the sidewall of radome, the sidewall of radome contacts with flexure strip, thus can easily be inserted between a pair of flexure strip.
The radome stationary fixture of printed circuit board (PCB) of the present invention, in the process of sidewall of inserting radome, there are eight contacts site, even so when inserting, the state departing from slightly that the sidewall of radome is put with ex situ between a pair of flexure strip also than in the past, there are more contacts site, so can prevent better that the sidewall of radome from departing from from stationary fixture.
The radome stationary fixture of printed circuit board (PCB) of the present invention, owing to being formed with otch on each flexure strip, so the function that strengthens the function of elastic bearing shield sidewall and prevent from departing from does not reduce the sidewall of radome from the function of stationary fixture separation simultaneously yet.
Accompanying drawing explanation
Fig. 1 is the stereogram that existing stationary fixture is shown.
Fig. 2 is the stereogram that the fixed relationship that represents stationary fixture of the present invention and radome is shown.
Fig. 3 is the stereogram that stationary fixture of the present invention is shown.
Fig. 4 is the cutaway view of cutting open along the A-A line of Fig. 3.
Fig. 5 is illustrated in the vertical view that is fixed with the state of radome on stationary fixture of the present invention.
Reference numeral
10: printed circuit board (PCB) 20: radome
20a: the sidewall 30 of radome: stationary fixture
31: fixed part 33: bottom
35: flexure strip 36: clamping part
37: guide portion 38: otch
38a: the bottom of otch
C: the contact site between the flexure strip of stationary fixture and the sidewall of radome
Embodiment
Below, the radome stationary fixture of the printed circuit board (PCB) that present invention will be described in detail with reference to the accompanying.
As shown in Figure 2, on printed circuit board (PCB) 10, actual load has the electronic device 15 of a plurality of semiconductor elements etc., thereby arrange in the outside of these electronic devices 15, covers these electronic devices 15 shielding shielding electromagnetic waves covers 20.
Described radome 20 is arranged on printed circuit board (PCB) 10 removably by the stationary fixture 30 being fixed on printed circuit board (PCB) 10.At this, radome 20 has four sidewall 20a and top wall 20b is integrally formed and the open cuboid box-shaped in its lower end.Thus, radome 20 covers electronic device 15 to be housed under its inner state.This radome 20 can form effectively to shield electromagnetic wave by tin plate etc.
In addition, as mentioned above, on printed circuit board (PCB) 10, be combined with a plurality of stationary fixtures 30 of each sidewall 20a of elastic bearing radome 20 removably.
With reference to Fig. 2 to Fig. 4, stationary fixture 30 of the present invention comprises: three fixed parts 31, are fixed on printed circuit board (PCB) 10 with the state contacting with printed circuit board (PCB) 10; Bottom 33, is configured between each fixed part 31; A pair of flexure strip 35, extends from each both sides of 33, bottom to upside and toward each other.
As mentioned above, fixed part 31 is fixed on printed circuit board (PCB) 10 with the state contacting with printed circuit board (PCB) 10, preferably by being fixedly welded on printed circuit board (PCB) 10.
As mentioned above, bottom 33 is configured between each fixed part 31.That is, be provided with in the present invention two bottoms 33.Now, although the concrete diagram in bottom 33 can be configured in the position that separates predetermined distance with printed circuit board (PCB) 10, in case crossing scolder in the process that welding is fixed on fixed part 31 printed circuit board (PCB) 10, stop-pass flows into bottom 33 sides.
This be for prevent scolder along bottom 33 chucking powers that also reduce by 35 pairs of radomes 20 of flexure strip when reducing flexure strip 35 elastic force to flexure strip 35 sides infiltrations after solidifying.
As mentioned above, being located at respectively each bottom a pair of flexure strip 35 on 33 33 both sides extends and toward each other to upside from bottom.This pair of flexure strip 35 plays the effect of the sidewall of elastic bearing radome 20.
Specifically, a pair of flexure strip 35 be take the above-below direction of each flexure strip 35 and at middle body, is had the outstanding clamping part 36 forming to the inside during as benchmark.
As mentioned above, this clamping part 36 is outstanding formation to the inside, thus contact with outer surface with the inner surface that is inserted into the sidewall 20a of the radome 20 between a pair of flexure strip 35, thus can elastic bearing sidewall 20a.
And, at the upside of the clamping part 36 of each flexure strip 35, be provided with the guide portion 37 being formed slopely laterally.When the sidewall 20a of radome 20 is inserted between a pair of flexure strip 35, this guide portion 37 guiding sidewall 20a insert smoothly.
In addition, take the left and right directions of each flexure strip 35 during as benchmark the middle body at a pair of flexure strip 35 have from the otch 38 of the downward lateral incision prescribed depth in upper end of each flexure strip 35.As shown in the figure, this otch 38 is formed on the middle body of each flexure strip 35, and is cut into darker than the downside of the clamping part 36 of actual elastic supporting radome 20 sidewall 20a.
That is, the part of the sidewall 20a of each flexure strip 35 Elastic supporting radomes 20 is divided into two.Thus, stationary fixture 30 of the present invention has eight contact site C that contact with the sidewall 20a of radome 20, and existing be four.
In addition, as shown in the figure, described otch 38 forms has Rack, but its bottom 38a has arc.The reason that the bottom 38a of otch 38 has arc is, when the sidewall 20a of stationary fixture 30 elastic bearing radomes 20 of the present invention, at otch 38 places, produce stress, if otch 38 forms band angular shape, stress focuses on its bight, thereby damages flexure strip 35.
As mentioned above, in the present invention, the sidewall 20a of radome 20 is inserted in by fixed part 31 and is fixed between a pair of flexure strip 35 of the stationary fixture 30 on printed circuit board (PCB) 10, but be formed with otch 38 on the flexure strip 35 due to stationary fixture 30, so the area that the sidewall 20a of radome 20 contacts with flexure strip 35 reduces, thereby can easily be inserted between a pair of flexure strip 35.
And, in the present invention, stationary fixture 30 has eight contact site C, so the sidewall of radome 20 between a pair of flexure strip 35 of stationary fixture 30 not being that the state departing from slightly of original position is when insert, because thering is more than ever before contact site, thereby can prevent better that the sidewall 20a of radome 20 from departing from from stationary fixture 30.
And, in the present invention, owing to being formed with otch 38 on the flexure strip 35 at stationary fixture 30, so the function that strengthens the function of elastic bearing radome 20 sidewall 20a and prevent from departing from does not reduce the sidewall 20a of radome 20 from the function of stationary fixture 30 separation simultaneously yet.
Claims (3)
1. a radome stationary fixture for printed circuit board (PCB), comprising: bottom (33); A pair of flexure strip (35), extends the sidewall (20a) with elastic bearing radome (20) from the both sides of described bottom (33) to upside relative to one another, it is characterized in that,
Take the left and right directions of described each flexure strip (35) during as benchmark described in the middle body of each flexure strip (35) be formed with otch (38), thereby between the sidewall (20a) of described radome (20) and described each flexure strip (35), form a plurality of contacts site (C);
Described otch (38) cuts from the downward side direction in upper end of described each flexure strip (35).
2. the radome stationary fixture of printed circuit board (PCB) according to claim 1, is characterized in that,
The bottom (38a) of described otch (38) forms arc, the stress producing when disperseing the sidewall (20a) of radome (20) described in described each flexure strip (35) elastic bearing.
3. the radome stationary fixture of printed circuit board (PCB) according to claim 2, is characterized in that,
The middle body of above-below direction during as benchmark of take at described each flexure strip (35) includes the outstanding clamping part (36) forming to the inside, in order to the sidewall (20a) of radome described in elastic bearing (20);
The lower end part of described otch (38) is in the downside of described clamping part (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210244394.6A CN103547058A (en) | 2012-07-13 | 2012-07-13 | Fixing clamp for shield can of printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210244394.6A CN103547058A (en) | 2012-07-13 | 2012-07-13 | Fixing clamp for shield can of printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103547058A true CN103547058A (en) | 2014-01-29 |
Family
ID=49969999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210244394.6A Pending CN103547058A (en) | 2012-07-13 | 2012-07-13 | Fixing clamp for shield can of printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103547058A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896746A (en) * | 2015-06-09 | 2015-09-09 | 广东美的环境电器制造有限公司 | Heating element installation structure of air heater and air heater |
| EP3487005A1 (en) * | 2017-11-21 | 2019-05-22 | BIOTRONIK SE & Co. KG | Clip for making a mechanical and electrically conductive connection between the clip and a pin, especially a feedthrough pin |
| CN110470881A (en) * | 2018-05-09 | 2019-11-19 | 赛米控电子股份有限公司 | Circuit device for current measurement and the power semiconductor assembly with it |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6051781A (en) * | 1997-09-24 | 2000-04-18 | Autosplice, Inc. | Surface mount electromagnetic frequency interference shield clip |
| CN101242735A (en) * | 2007-11-01 | 2008-08-13 | 波肯斯有限公司 | A clip for fixing of shield can |
| US20100149070A1 (en) * | 2008-12-12 | 2010-06-17 | Mitsumi Electric Co.,Ltd. | Electrical connection structure and antenna apparatus |
-
2012
- 2012-07-13 CN CN201210244394.6A patent/CN103547058A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6051781A (en) * | 1997-09-24 | 2000-04-18 | Autosplice, Inc. | Surface mount electromagnetic frequency interference shield clip |
| CN101242735A (en) * | 2007-11-01 | 2008-08-13 | 波肯斯有限公司 | A clip for fixing of shield can |
| US20100149070A1 (en) * | 2008-12-12 | 2010-06-17 | Mitsumi Electric Co.,Ltd. | Electrical connection structure and antenna apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896746A (en) * | 2015-06-09 | 2015-09-09 | 广东美的环境电器制造有限公司 | Heating element installation structure of air heater and air heater |
| EP3487005A1 (en) * | 2017-11-21 | 2019-05-22 | BIOTRONIK SE & Co. KG | Clip for making a mechanical and electrically conductive connection between the clip and a pin, especially a feedthrough pin |
| CN110470881A (en) * | 2018-05-09 | 2019-11-19 | 赛米控电子股份有限公司 | Circuit device for current measurement and the power semiconductor assembly with it |
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Application publication date: 20140129 |
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