CN204067757U - Signal switching connector - Google Patents
Signal switching connector Download PDFInfo
- Publication number
- CN204067757U CN204067757U CN201420375707.6U CN201420375707U CN204067757U CN 204067757 U CN204067757 U CN 204067757U CN 201420375707 U CN201420375707 U CN 201420375707U CN 204067757 U CN204067757 U CN 204067757U
- Authority
- CN
- China
- Prior art keywords
- elastic tip
- stiff end
- elastic
- arm portion
- contact site
- 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 - Lifetime
Links
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 239000000523 sample Substances 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 14
- 238000005452 bending Methods 0.000 claims abstract description 10
- 239000003292 glue Substances 0.000 claims description 19
- 238000004026 adhesive bonding Methods 0.000 claims description 11
- 230000008602 contraction Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000005489 elastic deformation Effects 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Measuring Leads Or Probes (AREA)
Abstract
The utility model provides a kind of signal switching connector.Body have grafting test probe to slotting opening; Metal shell has jack; Stiff end is fixed on described body; Elastic tip comprise be fixed on described body elastic tip fixed part, for the elastic tip weld part of welded and installed on circuit board, vertically to be extended the bending and elastic arm portion that supported on both sides is on described body in described stiff end direction by described elastic tip fixed part and by the elastic arm portion ora terminalis of described elastic tip to the elastic tip contact site extended away from elastic tip fixed part direction.Described elastic tip is contacted with described stiff end by its elastic tip contact site, and described elastic arm portion is moved to the direction leaving stiff end by described test probe, and the elastic tip contact site of elastic tip and described stiff end are disconnected.The utility model, due to its elastic arm portion stress distribution balanced and reasonable, avoids problem of stress concentration, thus has high reliability.
Description
Technical field
The utility model relates to signal switching connector, particularly relates to a kind of being installed in circuit board, for carrying out the signal switching connector of transmission channel switching in the communicators such as mobile phone.
Background technology
In electronic information field, the such as equipment such as mobile phone, WLAN (wireless local area network), when needing to connect exterior antenna, if exterior antenna is connected, the inside antenna in device is disconnected by the switching function of signal connector.Moreover signal switching connector is also usually installed in the printed circuit boards, be used for the performance of the transmitting high-frequency signal of testing printed circuit board to printed circuit board (PCB) for connecting test probe.
Signal switching connector known in the industry at least comprises: an outer conductor, one switching mechanism, one insulator, described switching mechanism at least comprises a movable terminal and a fixed terminal and mutually overlaps and form described movable terminal and fixed terminal is formed by bending by metal sheet, and being electrically connected on printed circuit board (PCB) respectively by leg portion, the circuit that two parts predetermined on printed circuit board (PCB) are separated is electrically connected together by this signal switching connector.Described movable terminal has elastically-deformable elastic arm portion by it and contacts with fixed terminal, the function that the circuit realizing separating described in the making of switching mechanism electrically connects, under the impetus of aerial lug or test probe, described movable terminal and fixed terminal disconnect, the function that the circuit TURP realizing separating described in the making of switching mechanism is disconnected, when aerial lug or test probe remove, described moved end relies on the elastic returning in the described elastic arm portion of self to the state contacted with fixed terminal, continuable on-off function is so provided, thus reach the object of on-line checkingi or signal path switching.
The switch transition function of electricity disconnection and electrical connection that classical signal switches connector only depends on the resilience force of the elastic arm portion generation of movable terminal, resilience force is better, the switch transition of signal switching connector is easier, vice versa, described resilience force is by metal sheet bending distortion being realized, in order to obtain enough resilience forces, often need to go out larger deformation to metal sheet bending, now, the internal stress of movable terminal all concentrates on elastic arm portion bending deformation position, the bending deformation position in elastic arm portion is made easily plastic deformation to occur, the resilience force in elastic arm portion weakens, cause the contact force between movable terminal with fixed terminal to reduce or disconnect contacting, the situation of the unreliable problem of function such as make the contact resistance of signal connector become large or switch is abnormal occurs.
Utility model content
For solving the problem a little, the utility model provides a kind of signal switching connector, and for being welded in circuit board, it comprises:
Body, its have grafting test probe to slotting opening; Metal shell, has jack;
Stiff end, it is fixed on described body;
Elastic tip, it comprise be fixed on described body elastic tip fixed part, for the elastic tip weld part of welded and installed on circuit board, vertically to be extended the bending and elastic arm portion that supported on both sides is on described body in described stiff end direction by described elastic tip fixed part and by the elastic arm portion ora terminalis of described elastic tip to the elastic tip contact site extended away from elastic tip fixed part direction;
Described elastic tip is contacted with described stiff end by its elastic tip contact site, and described elastic arm portion is moved to the direction leaving stiff end by described test probe, and the elastic tip contact site of elastic tip and described stiff end are disconnected.
Preferably, described elastic tip contact site arranges spaced elastic tip contact site branch, and this elastic tip contact site branch abuts on stiff end respectively from below, forms double-contact.
Preferably, described stiff end comprises stiff end fixed part for being fixed on described body, for the stiff end weld part of welded and installed on circuit board and contact the stiff end contact site connected with described elastic tip, described stiff end contact site tool spaced stiff end contact site branch, described double-contact is contacted with described elastic tip contact site branch accordingly respectively by this stiff end contact site branch and is formed.
Preferably, described elastic arm portion is that two end supports has an arc section of one fixed width in described body, and has the tabular connecting portion laterally extended away from the lateral margin of elastic tip weld part from described elastic tip fixed part in the junction with elastic tip fixed part.
Preferably, the both sides of described tabular connecting portion are provided with the corrugated contraction flow region in order to mild internal stress.
Preferably, the arc section culminating point in described elastic arm portion is positioned at described body to position immediately below slotting opening.
Preferably, described elastic arm portion is laterally provided with a strip through-hole section.
Preferably, the junction of described elastic arm portion and described elastic tip contact site is provided with an oval cut hole.
Preferably, described body comprises gluing core and lower glue core, and described stiff end and elastic tip are installed on described lower glue core, and being covered from top by described gluing core and fix, the supported on both sides in described elastic arm portion is on described lower glue core.
According to summary of the invention of the present utility model, because elastic arm portion is circular arc section, there is deformation good, can ensure all the time within the scope of elastic deformation, and pass through the strip through-hole section of setting and oval cut hole, share the force-bearing situation alleviating arc section, make the stress distribution balanced and reasonable in elastic arm portion, avoid elastic tip due to elastic arm portion stress concentrate, and there is serious plastic deformation in the impact being subject to variations in temperature in the process of SMT reflow soldering, ensure that elastic arm has good elastic deformation all the time before and after SMT reflow soldering, prevent switch failure, simultaneously by corrugated contraction flow region, optimize the internal stress distribution in elastic arm portion further, ensure that there is enough elastic force in elastic arm portion, thus ensure the reliability of switch motion.
Obtain it is noted that arranged by the double-contact of stiff end and elastic tip, even if when ensure that a contact failure, elastic tip and stiff end still by another contact, thus improve useful life and the reliability of signal switching connector.
Accompanying drawing explanation
Fig. 1: the vertical view being the utility model first embodiment
Fig. 2: the perspective view being the utility model first embodiment
Fig. 3: the exploded view being the utility model first embodiment
Fig. 4: the perspective view being the elastic tip of the utility model first embodiment
Fig. 5: be the cutaway view of the utility model first embodiment along the A-A tangent plane shown in Fig. 1
Fig. 6: be the stiff end of the utility model first embodiment, elastic tip is installed on the assembling schematic perspective view of lower glue core
Embodiment
The embodiment of most preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing:
First refer to shown in Fig. 1, Fig. 2, and composition graphs 3, the utility model provides a kind of signal switching connector 00, comprise: the metal shell 20 with a jack 23, be fixed on described metal shell 20 and there is the body 10 to slotting opening 113, the stiff end 40 being fixed on described body 10 and elastic tip 30, described elastic tip 30 and stiff end 40 mutually overlap and are arranged on the two ends of described body 10, stiff end weld part 41 and an elastic tip weld part 31 and each free body 10 inside stretches out.
Consult further shown in Fig. 3, described body 10 is made up of gluing core 110, lower glue core 120.The both sides of described metal shell 20 are extended with extension 21, this extension 21 forms a stopper section 22 respectively to lower bending one approximate right angle, the relevant position of described lower glue core 120 is respectively equipped with a limited impression 121, the extension 21 of described metal shell 20 and stopper section 22, gluing core 110, stiff end 40, elastic tip 30, lower glue core 120 is made to be coated in described metal shell 20 successively from top to bottom, stopper section 22 is spacing in described limited impression 121 simultaneously, said structure part is fixed together and forms signal switching connector 00 (as shown in Figure 1, Figure 2).
Shown in Fig. 3, described stiff end 40 is that the sheet metal of a uniform thickness is formed, it comprises the stiff end fixed part 42 being fixed on described body 10, a stiff end contact site 43 is extended with towards described elastic tip 30 direction from an ora terminalis of this stiff end fixed part 42, described stiff end contact site laterally bends and is extended with stiff end contact site branch 43a, 43b, is connected (specifically seeing subsequent content) in order to overlap with the corresponding contact part of elastic tip 30.As seen from the figure, bend horizontal-extending one stiff end weld part 41 downwards from another ora terminalis of described stiff end fixed part 42, this stiff end weld part 41 and target application electronic circuit weld together and realize being electrically connected again.
Refer to shown in Fig. 4, and shown in composition graphs 3, described elastic tip 30 is that the sheet metal of a uniform thickness is made, it has an elastic tip fixed part 32, bend again horizontal-extending downwards from this elastic tip fixed part 32 1 ora terminalis and form elastic tip weld part 31, this elastic tip weld part 31 and target application electronic circuit weld together and realize being electrically connected, laterally extended by another ora terminalis that described elastic tip fixed part 32 is contrary and be bent with an elastic arm portion 33, and extend to form elastic tip contact site 34 from the free ora terminalis in this elastic arm portion 33, described elastic tip contact site 34 compartment of terrain is provided with elastic tip contact site branch 342a, 342b, this elastic tip contact site branch 342a, the 342b end in contact part that is fixed respectively props up 43a, 43b pressure, make elastic tip 30 form electrical contact with stiff end 40 to be connected.
When test probe (unlisted for simplifying this figure) promotes described elastic arm portion 33, described elastic tip 30 is disconnected with stiff end 40 be electrically connected, after test probe exits, described elastic tip 30 is returned to the state be electrically connected with described stiff end 40 under the elastic restoring force effect in its elastic arm portion 33.
From Fig. 4 and Fig. 5, described elastic arm portion 33 adopts the convex structure of two end supports, is one to extend arc section that is bending, that have one fixed width (with reference to shown in Fig. 5) along horizontal direction (namely vertical with elastic tip 30 bearing of trend with stiff end 40 direction).Described elastic arm portion 33 has the flat connecting portion 331 of horizontal expansion, and two free ends of this connecting portion 331 are provided with corrugated contraction flow region 331a, 331b, for connecting elastic tip fixed part 32 and elastic arm portion 33.The length that the transverse direction in this elastic arm portion 33 is crossed over is 1 ~ 1.5 millimeter, and support two ends (as shown in Figure 5 by arm 33a, 33b, these two ends are propped up and are stood on described lower glue core 120), the centre in described elastic arm portion 33 bends upward to give prominence to and swells formation arc-shaped.
Preferably, as shown in Figure 4, the center in described elastic arm portion 33 is laterally provided with a strip through-hole section 332, the junction of described elastic arm portion 33 and described elastic tip contact site 34 is provided with an oval cut hole 341, the width of described strip through-hole section 332 is about 0.15 millimeter, and length and the width of described oval cut hole 341 are respectively 1 millimeter and 0.3 millimeter.
Please continue to refer to Fig. 5, shown in composition graphs 4, Fig. 6, described elastic tip 30 circular arc summit be roughly positioned at gluing core 110 centre bore 113 immediately below position.Be the forced contact point bearing test probe at test probe (unlisted for simplifying this figure) via this circular arc summit when slotting opening 113 being entered into the inside of signal switching connector 00, because elastic arm portion 33 is arc-shaped, make the arm of force increasing elastic arm portion 33 in limited space, improve the elastic deformation ability in described elastic arm portion 33, simultaneously, by arc-shaped inside arrange described strip through-hole section 332 and oval cut hole 341, make the stress distribution everywhere in elastic arm portion 33 more balanced, the internal stress that elastic arm portion 33 is produced in the nearly center of arc-shaped after being subject to test probe pressure can be rapidly dispersed into its circular arc each several part more equably, improve the intrinsic stress of arc section and concentrate not enough problem, thus there is good endurance and the good feature of anti-deformation effects.
In addition, due to corrugated contraction flow region 331a, 331b plays certain buffering transitional function in the arc section pressurized process in elastic arm portion 33, when the arc section in elastic arm portion 33 after being subject to test probe pressure its internal stress to disperseing everywhere, namely spread by the two ends of centre to circular arc surrounding, under the impetus of this diffusion-induced stress, circular arc periphery starts to bear larger stress, but by contraction flow region 331a, the wavy shaped configuration with good stretching elasticity of 331b, , stress spread direction is changed, stress is shifted, thus auxiliarily reduce the stress of the arc section in elastic arm portion 33 further, improve useful life.
Please continue to refer to Fig. 3, and shown in composition graphs 6, described lower glue core 120 is a cuboid insulating resin, the middle part of its upper surface has one to the containing groove 122 of lower recess, the left and right sides of lower glue core is respectively arranged with stiff end draw-in groove 123 and an elastic tip draw-in groove 124, and described stiff end draw-in groove 123 is connected with described containing groove 122 with elastic tip draw-in groove 124.Described stiff end draw-in groove 123 position that is connected with containing groove 122 is provided with a fixing lug boss 123a, the upper surface of this fixing lug boss 123a is lower than the upper surface of lower glue core 120, described stiff end fixed part 42 be placed in fixing lug boss 123a above and be contained in fixed groove 123, and the upper surface of stiff end fixed part 42 is concordant with the upper surface of lower glue core 120; Described containing groove 122 near elastic tip draw-in groove 124 one end symmetry be provided with a positive stop lug boss 124a, described elastic tip fixed part 31 is contained in elastic tip draw-in groove 124, and the thickness of elastic tip fixed part 31 is consistent with the degree of depth of elastic tip draw-in groove 124, the upper surface of such elastic tip fixed part 31 is concordant with the upper surface of positive stop lug boss 124a, and described stiff end weld part 41 and elastic tip weld part 31 are contained in stiff end draw-in groove 123 and elastic tip draw-in groove 124 respectively.Described stiff end contact site 43a, 43b mutually overlap with elastic arm portion 33a, 33b of elastic tip 30 and are contained in the containing groove 122 of lower glue core 120 accordingly respectively.
It should be noted that, as Fig. 5, shown in composition graphs 3, the below of the correspondence insertion centre bore 113 of the containing groove 122 of described lower glue core 120 is provided with boss portion 125, by foregoing teachings, the two ends in described elastic arm portion 33 are propped up and are stood on described lower glue core 120, the arc section in described elastic arm portion 33 is in the described underside to slotting opening 113, must be compressed by this boss portion 125 and define the deflection of its short transverse, this makes it possible to ensure that the deflection in elastic arm portion 33 remains in regime of elastic deformation, ensure that elastic tip 30 has reliable and stable elastic deformation performance.
Please continue to refer to Fig. 3, and shown in composition graphs 6, described gluing core 110 comprises a matrix part 11, has a cylinder 112 in the upper surface center of matrix part 11, the shaft core position of cylinder 112 have one with cylinder 112 coaxial and run through gluing core 110 upper and lower surface to slotting opening 113.When each parts are assembled into finished product successively, the lower surface appropriate section of the matrix part 11 of above-mentioned gluing core 110 exceeds the upper surface of stiff end fixed part 42 and the upper surface of elastic tip fixed part 31 respectively in downward direction, therefore after each parts are coated togather by metal shell 20 successively, described matrix part 11 receives the restriction of stiff end fixed part 42 and elastic tip fixed part 31 and produces certain power that press against, due to the toughness that gluing core 110 is certain for dielectric resin material has, thus stiff end fixed part 42 and elastic tip fixed part 31 are extruded respectively be fixed on lower glue core 120 stiff end draw-in groove 123 and elastic tip draw-in groove 124 in, stiff end 40 and elastic tip 30 can not be loosened in described body 10.
In sum, by the elastic arm thing unique design to elastic tip 30, signal switching connector disclosed in the utility model is made to have good useful life and high reliability.
The above, only list most preferred embodiment of the present utility model, and can not limit the scope of the utility model enforcement with this, any similar technical scheme all should belong to disclosed content.
Claims (9)
1. a signal switching connector, for being welded in circuit board, it comprises:
Body, its have grafting test probe to slotting opening;
Metal shell, has jack;
Stiff end, it is fixed on described body;
Elastic tip, it comprise be fixed on described body elastic tip fixed part, for the elastic tip weld part of welded and installed on circuit board, vertically to be extended the bending and elastic arm portion that supported on both sides is on described body in described stiff end direction by described elastic tip fixed part and by the elastic arm portion ora terminalis of described elastic tip to the elastic tip contact site extended away from elastic tip fixed part direction;
Described elastic tip is contacted with described stiff end by its elastic tip contact site, and described elastic arm portion is moved to the direction leaving stiff end by described test probe, and the elastic tip contact site of elastic tip and described stiff end are disconnected.
2. signal switching connector according to claim 1, is characterized in that: described elastic tip contact site arranges spaced elastic tip contact site branch, and this elastic tip contact site branch abuts on stiff end respectively from below, forms double-contact.
3. signal switching connector according to claim 2, it is characterized in that: described stiff end comprises stiff end fixed part for being fixed on described body, for the stiff end weld part of welded and installed on circuit board and contact the stiff end contact site connected with described elastic tip, described stiff end contact site tool spaced stiff end contact site branch, described double-contact is contacted with described elastic tip contact site branch accordingly respectively by this stiff end contact site branch and is formed.
4. signal switching connector according to claim 1, it is characterized in that: described elastic arm portion is that two end supports has an arc section of one fixed width in described body, and has the tabular connecting portion laterally extended away from the lateral margin of elastic tip weld part from described elastic tip fixed part in the junction with elastic tip fixed part.
5. signal switching connector according to claim 4, is characterized in that: the both sides of described tabular connecting portion are provided with the corrugated contraction flow region in order to mild internal stress.
6. signal switching connector according to claim 5, is characterized in that: the arc section culminating point in described elastic arm portion is positioned at described body to position immediately below slotting opening.
7. signal switching connector according to claim 5, is characterized in that: described elastic arm portion is laterally provided with a strip through-hole section.
8. signal switching connector according to claim 5, is characterized in that: the junction of described elastic arm portion and described elastic tip contact site is provided with an oval cut hole.
9. signal switching connector according to claim 1, it is characterized in that: described body comprises gluing core and lower glue core, described stiff end and elastic tip are installed on described lower glue core, and being covered from top by described gluing core and fix, the supported on both sides in described elastic arm portion is on described lower glue core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420375707.6U CN204067757U (en) | 2014-07-09 | 2014-07-09 | Signal switching connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420375707.6U CN204067757U (en) | 2014-07-09 | 2014-07-09 | Signal switching connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204067757U true CN204067757U (en) | 2014-12-31 |
Family
ID=52209206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420375707.6U Expired - Lifetime CN204067757U (en) | 2014-07-09 | 2014-07-09 | Signal switching connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204067757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706949A (en) * | 2019-10-17 | 2020-01-17 | 冯帅 | Uninterrupted power conversion device for power distribution cabinet |
-
2014
- 2014-07-09 CN CN201420375707.6U patent/CN204067757U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706949A (en) * | 2019-10-17 | 2020-01-17 | 冯帅 | Uninterrupted power conversion device for power distribution cabinet |
| CN110706949B (en) * | 2019-10-17 | 2021-06-18 | 卡新电子科技(上海)有限公司 | Uninterrupted power conversion device for power distribution cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518106. 8-A building, Fairview estate, West Tian community, Gongming subdistrict, Guangming District, Shenzhen, Guangdong Patentee after: ELECTRIC CONNECTOR TECHNOLOGY Co.,Ltd. Address before: 518106. 8-A building, Fairview estate, West Tian community, Gongming subdistrict, Guangming District, Shenzhen, Guangdong Patentee before: ELECTRIC CONNECTOR TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |