CN207559121U - Spring loaded contact probe - Google Patents
Spring loaded contact probe Download PDFInfo
- Publication number
- CN207559121U CN207559121U CN201721677929.3U CN201721677929U CN207559121U CN 207559121 U CN207559121 U CN 207559121U CN 201721677929 U CN201721677929 U CN 201721677929U CN 207559121 U CN207559121 U CN 207559121U
- Authority
- CN
- China
- Prior art keywords
- spring
- blind hole
- accommodating blind
- contact probe
- loaded contact
- 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
Links
- 239000000523 sample Substances 0.000 title claims abstract description 37
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- Measuring Leads Or Probes (AREA)
Abstract
The application is a kind of spring loaded contact probe, including a hollow needle tube, a spring, a movement needle shaft and an insulating part.Hollow needle tube has an opposite base terminal and an openend；One opening of setting, is open and forms an accommodating blind hole towards hollow needle tube internal stretch on openend.Spring has a fixing end and a compression end, fixing end by being open and into accommodating blind hole.There is mobile needle shaft a contact jaw and a locking end, locking end to be set in accommodating blind hole, and contact jaw is exposed to except openend, and spring is compressed between the bottom of mobile needle shaft and accommodating blind hole by opening.Insulating part is isolated between the fixing end of spring and the bottom of accommodating blind hole or is isolated between spring and the inner wall of accommodating blind hole.The spring loaded contact probe of the utility model is it is possible to prevente effectively from electric current by spring, and solves the problems, such as spring short circuit and burns.
Description
Technical field
The utility model is related with electric connector, especially with regard to the elastic connecting feeler inspection for applying to electric connector or probe card
Needle.
Background technology
Spring loaded contact probe is widely used among battery tray, electric connector or probe card.Spring loaded contact probe can be with
Apply appropriate contact to the electrode to be connected, to ensure to be connected between spring loaded contact probe and probe.Also,
In the case where spring loaded contact probe does not have stress, because foreign object is accidental when can keep cold state, and avoid exposed
Contact and occur the situation of unnecessary conducting.
Attached drawing 1 is existing spring loaded contact probe of the prior art, includes syringe 1, needle shaft 2 and compressed spring 3.Needle
Axis 2 is arranged in syringe 1, and there are one contact jaw 4 is exposed.Compressed spring 3 is also disposed in syringe 1, and is compressed in
Between syringe 1 and needle shaft 2, to provide an appropriate elastic thrust to needle shaft 2.
After needle shaft 2 is compressed inwardly a distance, the current-carrying part on needle shaft 2 will touch 1 inner wall of syringe
Current-carrying part (is omitted in figure and is not drawn), and allows the connection circuit turn-on of needle shaft 2 and spring loaded contact probe.Syringe 1 and needle shaft 2 it
Between because scale error can there are gaps so that the wreath piece of compressed spring 3 compressed touches the conduction of 1 inner wall of syringe
Part, and form a conductive path in contact position and 3 bottom end of compressed spring.It is received in needle shaft 2 or while output power,
Compressed spring 3 also can short circuit be powered, and moment generates high current by compressed spring 3, and make 3 fast heating of compressed spring and
It burns, follows the string, so that spring loaded contact probe is ineffective.
Utility model content
In the spring loaded contact probe of the prior art, there is compressed springs easily to occur short circuit, and then because high current is burnt
The technical issues of ruining.
To solve the above-mentioned problems, the utility model at least embodiment proposes a kind of spring loaded contact probe, in one
Empty needle pipe, a spring, a movement needle shaft and an insulating part.Hollow needle tube has an opposite base terminal and an openend；It opens
One opening of setting, is open and forms an accommodating blind hole towards hollow needle tube internal stretch on mouth end.Spring have a fixing end and
One compression end, fixing end by being open and into accommodating blind hole.Mobile needle shaft has a contact jaw and a locking end, locking
End be set in accommodating blind hole, contact jaw by opening expose to except openend, and bullet be compressed in mobile needle shaft and
Between the bottom of accommodating blind hole.Insulating part is isolated between the fixing end of spring and the bottom of accommodating blind hole or is isolated in bullet
Between spring and the inner wall of accommodating blind hole.
Preferably, insulating part is a sheet body, it is isolated between the fixing end of spring and the bottom of accommodating blind hole.
Preferably, insulating part is a sleeve, spring is entangled, and spacer spring and the inner wall of accommodating blind hole.
Preferably, insulating part is an insulating layer, spring surface is coated.
Preferably, accommodating blind hole is in the part close to opening, the clamping of the central axis extension of the accommodating blind hole of formation direction
Portion, and outwardly projecting fastener is formed outside the locking end of mobile needle shaft, by the holding section block of accommodating blind hole.
Preferably, the cross section of opening is less than the cross section of accommodating blind hole other parts.
Preferably, hollow needle tube openend is tapered shape.
Preferably, the flange around circumferential surface is formed on the middle section position of hollow needle tube.
An accommodating space preferably, the locking end of mobile needle shaft sets to the concave, and the compression end of spring is to be located to house
In space.
Preferably, the base terminal of hollow needle tube can be a demountable corking.
In the spring loaded contact probe of the utility model, it is possible to prevente effectively from electric current is by spring, and solve because in
The problem of clearance between empty needle pipe and mobile needle shaft causes spring short circuit to burn.
Description of the drawings
Attached drawing 1 is the sectional view of the spring loaded contact probe in existing known technology.
Attached drawing 2 is the front exploded view of the utility model first embodiment.
Attached drawing 3 is the stereogram of the utility model first embodiment.
Attached drawing 4 is the sectional view of the utility model first embodiment.
Attached drawing 5 is the sectional view under the utility model first embodiment compressive state.
Attached drawing 6 is the sectional exploded view of the utility model second embodiment.
Attached drawing 7 is the sectional view of the utility model second embodiment.
Attached drawing 8 is the sectional exploded view of the utility model 3rd embodiment.
Attached drawing 9 is the sectional view of the utility model 3rd embodiment.
Attached drawing 10 is the enlarged fragmentary cross section of the utility model fourth embodiment.
Primary symbols explanation：
1 syringe, 2 needle shaft
3 compressed spring, 4 contact jaw
100 spring loaded contact probes
110 hollow needle tube, 111 holding section
112 base terminal, 113 flange
114 openend, 115 corking
116 118 accommodating blind holes of opening
120 insulating part, 130 spring
134 fixing end, 132 compression end
140 movement 142 contact jaws of needle shaft
144 locking 146 fasteners of end
Specific embodiment
Please refer to attached drawing 1, attached drawing 2 and attached drawing 3, it is aobvious shown in be a kind of elasticity that the utility model first embodiment proposes
Contact probe 100 includes a hollow needle tube 110, an insulating part 120, a spring 130 and a movement needle shaft 140.
As shown in attached drawing 2, attached drawing 3 and attached drawing 4, hollow needle tube 110 has opposite a base terminal 112 and an opening
114 are held, an opening 116 is set on openend 114, and is formed one towards 110 internal stretch of hollow needle tube from opening 116 and housed
Blind hole 118.In addition, accommodating blind hole 118 is in the part close to opening 116, the central axis extension of the accommodating blind hole 118 of formation direction
Holding section 111.Therefore, hollow needle tube 110 and accommodating blind hole 118 from longitudinal profile, can see the transversal of opening 116
Face is less than the cross section of 118 other parts of accommodating blind hole.In addition, from the external observation of hollow needle tube 110, hollow needle tube 110 is opened
Mouth end 114 is tapered shape, and the flange 113 around circumferential surface is formed on the middle section position of hollow needle tube 110.Flange
113 can be used for when hollow needle tube 110 is inserted into a mounting hole (not shown) and is fixed, and fixed hollow needle tube 110 is inserted into
The depth of mounting hole, to ensure that openend 114 can protrude in the plane of predetermined set.
As shown in attached drawing 2 and attached drawing 4, insulating part 120 can be a sheet body, be isolated in the fixing end 134 of spring 130
Between the bottom of accommodating blind hole 118.Sheet body can be circular piece or other shapes, and area is equal to or slightly less than houses blind
The bottom in hole 118.Insulating part 120 is made with the material of high resistivity, other than can be to avoid energization, can also avoid by
High-voltage arc punctures.Insulating part 120 is set in accommodating blind hole 118, and is the bottom for being located at accommodating blind hole 118.Insulating part
120, which can penetrate viscose, pastes in the bottom of accommodating blind hole 118 but it is also possible to be the simple bottom for being placed on accommodating blind hole 118
Portion does not need to especially be fixed.
As shown in attached drawing 2 and attached drawing 4, spring 130 has a fixing end 134 and a compression end 132.Spring 130
Fixing end 134 is entered by opening 116 in accommodating blind hole 118, and is compressed on insulating part 120 so that spring 130 is consolidated
Fixed end 134 will not directly contact hollow needle tube 110, therefore can shape between the fixing end 134 of spring 130 and hollow needle tube 110
Into being electrically insulated.Since insulating part 120 is suppressed by the fixing end 134 of spring 130, it is possible to be securely fixed in accommodating blind
The bottom in hole 118, so insulating part 120 does not need to actually be pasted or other modes are fixed.
As shown in attached drawing 2, attached drawing 3 and attached drawing 4, mobile needle shaft 140 has a contact jaw 142 and a locking end 144.
Locking end 144 is set in accommodating blind hole 118, and by 111 block of holding section without being come off by opening 116.Contact jaw 142
Then exposed to except the openend 114 of hollow needle tube 110 by opening 116.In addition, the compression end 132 of spring 130 is to be moved
Needle shaft 140 is suppressed so that spring 130 is compressed between mobile needle shaft 140 and the bottom of accommodating blind hole 118, and provides one
A elastic thrust for pushing out mobile needle shaft 140.
As shown in attached drawing 2 and attached drawing 4, the locking end 144 of mobile needle shaft 140 sets to the concave an accommodating space, and bullet
The compression end 132 of spring 130 is located in this accommodating space.The length of spring 130 is according to coefficient of elasticity and accommodating space
Depth determine, so as to determine decrement of the spring 130 between mobile needle shaft 140 and the bottom of accommodating blind hole 118, and incite somebody to action
The elastic thrust that spring 130 is provided is set in an appropriate range.
In addition, as shown in attached drawing 2 and attached drawing 4,144 outside of locking end of mobile needle shaft 140 forms outwardly projecting card
Stop 146.Fastener 146 can be by 111 block of holding section of accommodating blind hole 118 so that locking end 144 will not be from opening 116
Abjection, limitation locking end 144 is only capable of being moved forward and backward in accommodating blind hole 118, so mobile needle shaft 140 will be presented in appearance
It stretches on the openend of hollow needle tube 110 114.
As shown in Figure 5, when spring loaded contact probe 100 be used to an electrode, the contact jaw of mobile needle shaft 140 be connected
142 are used in the contact electrode.As spring loaded contact probe 100 is to electrode force, mobile needle shaft 140 inside contracts closely accommodating blind hole
118 so that spring 130 is compressed, and generates elastic thrust, allows contact jaw 142 that can contact electrode with appropriate strength.Together
When, mobile needle shaft 140 can also be connected after inside contracting a distance with hollow needle tube 110.If at this point, 130 wreath piece of spring
The inner wall of accommodating blind hole 118 is touched through the clearance touched between hollow needle tube 110 and mobile needle shaft 140, due to insulation
The part 120 fixing end 134 of spacer spring 130 and hollow needle tube 110, therefore do not have electric current on spring 130 and pass through, and
It can be burnt to avoid spring 130 by immediate current.
It is a kind of spring loaded contact probe 100 that the utility model second embodiment proposes as shown in attached drawing 6 and attached drawing 7.
The base terminal 112 of hollow needle tube 110 can include a demountable corking 115, to be removed so that bottom be in
Existing open state.Under this scheme, mobile needle shaft 140, spring 130 can be sequentially by housing blind hole 118 with insulating part 120
In the accommodating blind hole 118 of bottom merging, the bottom of accommodating blind hole 118 is finally sealed with corking 115 again.It, can be with by this design
Be conducive to assembling and part changes.Corking 115 can be fixed by packing mode or screw connection manner.
Since insulating part 120 is for the fixing end 134 of spring 130 to be avoided to be formed between the side wall of accommodating blind hole 118
One conductive path, therefore, insulating part 120 can also modification, be arranged on different positions.
It is a kind of spring loaded contact probe that the utility model 3rd embodiment is proposed as shown in attached drawing 8 and attached drawing 9
100.In the third embodiment, the fixing end 134 of spring 130 lies directly against the bottom of accommodating blind hole 118.And insulating part 120 is
One sleeve, entangles spring 130, and spacer spring 130 and the inner wall of accommodating blind hole 118.Thus, 130 twist part of spring
The inner wall of accommodating blind hole 118 would not be touched by dividing, the electric current without generating the fixing end 134 by spring 130.
That is, insulating part 120 be for be isolated in the bottom of the fixing end 134 of spring 130 and accommodating blind hole 118 it
Between or be isolated between spring 130 and the inner wall of accommodating blind hole 118.Therefore, insulating part 120 can also have other kind of variation.
As shown in Figure 10, it is a kind of spring loaded contact probe 100 that the utility model fourth embodiment is proposed.The 4th
In embodiment, insulating part 120 is an insulating layer, cladding spring 130 surface, and can be with the electrical of spacer spring 130 and the external world
Conducting.Therefore, whether between the fixing end 134 of spring 130 and the bottom of accommodating blind hole 118 or spring 130 with it is accommodating blind
Between the inner wall in hole 118, all it is isolated by insulating part 120 so that electric current will not pass through spring 130.
It is recorded by aforementioned embodiment, in the spring loaded contact probe 100 of the utility model, it is possible to prevente effectively from electric
Stream is solved by spring 130 because the clearance between hollow needle tube 110 and mobile needle shaft 140 causes spring 130 is short-circuit to burn
The problem of ruining.
Claims (10)
1. a kind of spring loaded contact probe, which is characterized in that the spring loaded contact probe includes：
One hollow needle tube has an opposite base terminal and an openend；One opening of setting, the opening on the openend
An accommodating blind hole is formed towards the hollow needle tube internal stretch；
One spring, has a fixing end and a compression end, and the fixing end is entered described accommodating blind by the opening
Hole；
One movement needle shaft has a contact jaw and a locking end, and the locking end is set in the accommodating blind hole, described to connect
Contravention is exposed to by the opening except the openend, and the spring is compressed in the mobile needle shaft and described
Between the bottom of accommodating blind hole；And
One insulating part is isolated between the fixing end of the spring and the bottom of the accommodating blind hole or is isolated in the bullet
Between spring and the inner wall of the accommodating blind hole.
2. spring loaded contact probe as described in claim 1, which is characterized in that the insulating part is a sheet body, is isolated in institute
It states between the fixing end of spring and the bottom of the accommodating blind hole.
3. spring loaded contact probe as described in claim 1, which is characterized in that the insulating part is a sleeve, is entangled described
Spring, and the inner wall of the spring and the accommodating blind hole is isolated.
4. spring loaded contact probe as described in claim 1, which is characterized in that the insulating part is an insulating layer, coats institute
State spring surface.
5. spring loaded contact probe as described in claim 1, which is characterized in that the accommodating blind hole is in the portion close to the opening
Part, form the holding section extended towards the central axis of the accommodating blind hole, and shape outside the locking end of the mobile needle shaft
Into outwardly projecting fastener, by the holding section block of the accommodating blind hole.
6. spring loaded contact probe as claimed in claim 5, which is characterized in that the cross section of the opening is less than described accommodating blind
The cross section of hole other parts.
7. spring loaded contact probe as described in claim 1, which is characterized in that the hollow needle tube openend is tapered shape
Shape.
8. spring loaded contact probe as described in claim 1, which is characterized in that form ring on the middle section position of the hollow needle tube
Around the flange of circumferential surface.
9. spring loaded contact probe as described in claim 1, which is characterized in that the locking end of the mobile needle shaft sets to the concave one
A accommodating space, and the compression end of the spring is located in the accommodating space.
10. spring loaded contact probe as described in claim 1, which is characterized in that the base terminal of the hollow needle tube can be one
A demountable corking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677929.3U CN207559121U (en) | 2017-12-06 | 2017-12-06 | Spring loaded contact probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677929.3U CN207559121U (en) | 2017-12-06 | 2017-12-06 | Spring loaded contact probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207559121U true CN207559121U (en) | 2018-06-29 |
Family
ID=62665924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721677929.3U Expired - Fee Related CN207559121U (en) | 2017-12-06 | 2017-12-06 | Spring loaded contact probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207559121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888545A (en) * | 2017-12-06 | 2019-06-14 | 东莞迪芬尼电声科技有限公司 | Spring loaded contact probe |
-
2017
- 2017-12-06 CN CN201721677929.3U patent/CN207559121U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888545A (en) * | 2017-12-06 | 2019-06-14 | 东莞迪芬尼电声科技有限公司 | Spring loaded contact probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |