CN107240799B - Electric pressure contactor - Google Patents
Electric pressure contactor Download PDFInfo
- Publication number
- CN107240799B CN107240799B CN201710627916.3A CN201710627916A CN107240799B CN 107240799 B CN107240799 B CN 107240799B CN 201710627916 A CN201710627916 A CN 201710627916A CN 107240799 B CN107240799 B CN 107240799B
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- CN
- China
- Prior art keywords
- contact
- guide hole
- hole
- guide
- convex part
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
- H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
- H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention provides a voltage force contactor, which comprises a hollow shell, wherein a contact capable of reciprocating in the shell is sleeved in the shell, and the contact is provided with a second convex part which is further in clearance fit with a second guide hole, so that the guide length of the axial reciprocating movement of the contact is obviously increased, and the stability of the axial movement of the contact is improved; meanwhile, the outer side of the contact is sleeved with an elastic piece which is respectively contacted with the second guide hole, the first convex part and the second convex part, the contact area between the contact and the shell is further increased by the elastic piece, the conduction current is improved, and the installation space of the voltage force contactor is further saved.
Description
Technical Field
The invention belongs to the technical field of conductive connection, and particularly relates to a voltage force contactor.
Background
The electric pressure contactor is used for transmitting current and signals between two elements moving relative to each other, and is widely used in various occasions requiring conductive connection. The existing electric pressure contactor comprises a hollow shell, one end of the shell is sleeved with a contact, one end of the contact, which deviates from the shell, is provided with a conductive cap, the other end of the shell, which is opposite to the end, is fixedly sleeved with a connector, a spring is arranged between the contact and the connector, and the spring can enable the contact to move axially and relatively in the shell, so that stable current or signal transmission between two relatively moving elements is ensured.
Chinese patent CN1973409a discloses an electrical force contact device comprising a housing sleeve having one end facing the contact and one end facing away from the contact; an electrically conductive contact head mounted in the housing sleeve so as to be movable in the axial direction, which contact head protrudes from the end of the housing sleeve facing the contacts; the contact head can be pushed into the shell sleeve against the pretightening force of the pretightening element; and an electrically conductive connecting piece arranged on the end of the housing sleeve facing away from the contact, said connecting piece being used for fastening a power line. The connection block has an axial bore in the housing sleeve facing the contact, in which bore a section of the contact head, which is arranged coaxially to the bore and faces away from the contact, is accommodated in order to establish electrical contact between the contact head and the connection block. Such a pressure contact device is designed to remain intact after a high number of contact strokes. According to the electric pressure contact device, the contact element is the crown spring, the crown spring is respectively contacted with the contact head and the connecting block through the two end parts of the crown spring, the contact area between the contact head and the connecting block is smaller, so that the electric current which can be transmitted by the electric pressure contact device is smaller, and when the electric current which needs to be transmitted is larger, the volume of the electric pressure contact device can only be increased, so that the requirement of the electric pressure contact device on the installation space is increased; moreover, the contact is easy to deviate from the axial direction due to the small area of the guiding part of the contact and the shell, so that the performance stability of the voltage force contact device is affected.
Therefore, it is necessary for those skilled in the art to design a voltage force contactor that not only saves space, but also has good performance stability.
Disclosure of Invention
Aiming at the technical problems of high requirement on installation space and unstable performance of the electric pressure contact device, the invention provides the electric pressure contact device which can save space and has good performance stability.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the electric pressure contactor comprises a hollow shell, wherein a contact capable of reciprocating in the shell is sleeved in the shell, the shell is provided with a first guide hole and a second guide hole which are communicated in sequence, the contact comprises a first guide section and a second guide section which are connected integrally, the first guide section is sleeved in the first guide hole, and the first guide section is in clearance fit with the first guide hole; the second guide section is sleeved in the second guide hole, the second guide section is provided with a first convex part and a second convex part, and the second convex part is in clearance fit with the second guide hole; the contact sleeve is provided with an elastic piece, the elastic piece comprises two end parts which are oppositely arranged, and a drum part connected between the two end parts, and the outer diameter of the drum part is larger than that of the two end parts; the drum part is in fit contact with the second guide hole, and the two end parts are respectively in press fit contact with the first convex part and the second convex part.
Preferably, the drum portion has a drum diameter larger than an inner diameter of the second guide hole.
Preferably, the circumferential surface of the drum is lined up with a plurality of gaps, which extend radially through the circumferential surface of the drum.
Preferably, the second guide hole has an inner diameter larger than that of the first guide hole, and the first protrusion has an outer diameter larger than that of the first guide hole.
Preferably, the outer diameter of the first convex portion is smaller than the outer diameter of the second convex portion.
Preferably, an end hole is formed in one end, far away from the contact, of the shell, and a connector is arranged in the end hole; a spring capable of driving the contact to axially reciprocate along the shell is arranged between the contact and the connector.
Preferably, a first blind hole is axially formed in one end, facing the connector, of the contact, one end of the spring is in contact with the bottom surface of the first blind hole, and the opposite end of the spring is in contact with the side surface, facing the contact, of the connector.
Preferably, a connecting column is axially arranged at one end of the connecting body, which faces the contact, and one end of the spring, which faces the connecting body, is sleeved in the connecting column.
Preferably, a second blind hole is axially formed in one end, away from the first protruding portion, of the contact, and a conductive cap is arranged in the second blind hole.
Compared with the prior art, the invention has the advantages and positive effects that:
1. according to the electric pressure contactor, the contact is provided with the second convex part which is in clearance fit with the second guide hole, so that the guide length of the axial reciprocating movement of the contact is obviously increased, and the stability of the axial movement of the contact is improved; meanwhile, the elastic pieces which are respectively contacted with the second guide holes, the first convex parts and the second convex parts are sleeved on the outer sides of the contacts, the contact area between the contacts and the shell is increased by the elastic pieces, the contact resistance is reduced, and the conduction current is improved, so that the volume of the electric pressure contactor is reduced under the condition of the same current value requirement, and the electric pressure contactor has lower installation space requirement.
2. According to the electric pressure contactor, the axial length of the contact is increased by arranging the second guide section matched with the shell, so that the axial length of the spring is increased, when the same deformation amount of the spring occurs, the deformation proportion of the spring can be correspondingly reduced by increasing the axial length of the spring, and the service life of the spring and the structural and performance stability of the electric pressure contactor are improved.
Drawings
FIG. 1 is a schematic view of a voltage contactor according to the present invention;
FIG. 2 is a schematic view of the structure of the contact of the present invention;
FIG. 3 is a schematic view of the structure of the housing of the present invention;
fig. 4 is a schematic structural view of an elastic member according to the present invention.
In the above figures: 1. a housing; 11. a first guide hole; 12. a second guide hole; 13. an end hole; 2. a contact; 21. a first guide section; 22. a second guide section; 221. a first convex portion; 222. a second convex portion; 23. a first blind hole; 24. a second blind hole; 3. an elastic member; 31. a gap; 32. an end portion; 33. a drum part; 4. a connecting body; 41. a connecting column; 5. a spring; 6. a conductive cap.
Detailed Description
The present invention will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the invention, the diameter of the horizontal section of the axial center of the elastic piece is the drum diameter, and the diameter of the horizontal section at the two axial ends of the elastic piece is the end diameter; the shell and the contact are cylindrical, the circumferential direction is the circumferential direction, the vertical direction in the figure 1 is the axial direction, and the horizontal direction is the radial direction; the terms "inner," "outer," "upper," "lower," "front," "rear," and the like refer to an orientation or positional relationship based on the positional relationship shown in the drawings, for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 3, the present invention proposes an electric pressure contactor, which includes a housing 1 and a contact 2, wherein the housing 1 is hollow, and the contact 2 is sleeved in the housing 1 and can reciprocate in the housing 1 along an axial direction of the housing 1; the shell 1 is provided with a first guide hole 11 and a second guide hole 12 which are communicated sequentially, the contact 2 is sleeved in the first guide hole 11 and the second guide hole 12, the contact 2 comprises a first guide section 21 and a second guide section 22 which are integrally connected, the first guide section 21 is sleeved in the first guide hole 11, the first guide section 21 is in clearance fit with the first guide hole 11, and the first guide hole 11 achieves the guide effect on the reciprocating motion of the contact 2 through the first guide section 21, so that the stability of the reciprocating motion of the contact 2 is guaranteed. The second guiding section 22 is sleeved in the second guiding hole 12, the second guiding section 22 is provided with a first protruding portion 221 and a second protruding portion 222, the first protruding portion 221 and the second protruding portion 222 are sequentially arranged along the direction from the first guiding hole 11 to the second guiding hole 12, the outer diameter of the first protruding portion 221 is smaller than the inner diameter of the second guiding hole 12, the second protruding portion 222 is in clearance fit with the second guiding hole 12, the second guiding hole 12 achieves further guiding action on the reciprocating motion of the contact 2 through the second protruding portion 222, and the second protruding portion 222 remarkably increases the guiding length of the shell 1 on the contact 2, so that the stability of the axial reciprocating motion of the contact 2 and the structural stability of the voltage force contactor are improved.
It should be noted that in the prior art, the contact 2 and the housing 1 are only in clearance fit through the first guide section 21, so that the guiding function of the housing 1 on the contact 2 is realized, and because the length of the first guide section 21 is shorter, the contact 2 cannot be well guided, and the contact 2 is easy to incline or rotate away from the axial direction during the axial reciprocating motion, namely, the clamping stagnation phenomenon, so that the structural stability of the electric pressure contactor is reduced.
The contact 2 of the electric pressure contactor is provided with the second convex part 222 which is further in clearance fit with the shell 1, the second convex part 222 plays a further guiding role in the axial reciprocating motion of the contact 2, and the second convex part 222 and the first guiding section 21 are mutually matched to guide the axial reciprocating motion of the contact 2, so that the possibility of clamping stagnation of the contact 2 is greatly reduced, and the stability of the electric pressure contactor is improved.
Referring to fig. 1 to 4, the outer side of the contact 2 is further sleeved with an elastic member 3, the elastic member 3 is disposed between the first protrusion 221 and the second protrusion 222, the elastic member 3 includes two opposite end portions 32, and a drum portion 33 connected between the two end portions 32, and the outer surface of the drum portion 33 radially protrudes from the two end portions 32, that is, the outer diameter of the drum portion 33 is larger than the outer diameter of the two end portions 32. The outer surface of the drum part 33 is in contact with the inner surface of the second guiding hole 12, the two end parts 32 are respectively pressed together with the first protruding part 221 and the second protruding part 222, and compared with the contact element (crown spring) in the prior art, the elastic part 3 increases the contact area between the contact 2 and the shell 1, thereby further reducing the conduction resistance, improving the conduction current and the signal size, reducing the volume of the voltage force contactor of the invention under the condition of the same current value requirement, and having lower installation space requirement.
According to the electric pressure contactor, the elastic piece 3 is sleeved outside the contact 2, the drum part 33 of the elastic piece 3 is in fit contact with the inner wall of the second guide hole 12, the two end parts 32 are respectively pressed with the first convex part 221 and the second convex part 222, the contact area between the contact 2 and the shell 1 is increased, the conduction current is improved, and the installation space of the electric pressure contactor is saved.
Preferably, the elastic member 3 may be a drum spring or a lantern spring.
In order to ensure that the elastic member 3 is tightly attached to the inner side surface of the second guide hole 222, that is, the elastic member 3 is in a radially compressed state, that is, the drum diameter of the elastic member 3 is larger than the inner diameter of the second guide hole 12.
Referring to fig. 4, the elastic member 3 is provided with end portions 32 at two axial ends, a drum portion 33 is disposed between the two end portions 32, the outer diameter of the drum portion 33 is larger than the outer diameter of the end portions 32, and the outer diameter of the drum portion 33 gradually increases from the two end portions 32 toward the axial center horizontal section of the elastic member 3, when the elastic member 3 is mounted to the contact 2 and is matched with the second guide hole 12, the elastic member 3 is in a radially compressed state, so that the outer surface of the whole drum portion 33 of the elastic member 3 is contacted with the inner surface of the second guide hole 12, and the two end portions 32 are contacted with the first protrusion 221 and the second protrusion 222, respectively, and compared with the prior art, the contact area between the contact 2 and the housing 1 is increased, and the conduction resistance is further reduced, and the conduction current value is improved.
With continued reference to fig. 4, a plurality of gaps 31 are axially disposed toward the side surface of the second guide hole 222, and the plurality of gaps 331 are uniformly arranged along the circumferential direction of the elastic member 3, so as to further ensure that the elastic member 3 can be smoothly radially compressed by the second guide hole 12.
Preferably, the elastic member 3 is made of brass, so as to further reduce contact resistance.
With continued reference to fig. 1 to 3, in order to accommodate the first protrusion 221 and the second protrusion 222, the inner diameter of the second guide hole 12 is larger than the inner diameter of the first guide hole 11, and the outer diameter of the first protrusion 221 is larger than the inner diameter of the first guide hole 11, the side surface of the first protrusion 221 facing the first guide hole 11 may be attached to the bottom surface of the second guide hole 12 to limit the movement distance of the contact 2; in order to ensure flexibility of movement of the contact 2, the outer diameter of the first protrusion 221 is smaller than the outer diameter of the second protrusion 222, i.e. a gap exists between the first protrusion 221 and the second guiding hole 12, so as to avoid over-positioning of the contact 2 in the second guiding hole 222.
With continued reference to fig. 1 and 2, an end hole 13 is axially disposed at an end of the housing 1 away from the contact 2, a connector 4 is mounted in the end hole 13, a spring 5 is disposed between the contact 2 and the connector 4, and the spring 5 can drive the contact 2 to reciprocate axially along the housing 1.
Specifically, a first blind hole 23 is axially arranged at one end of the contact 2 facing the connector 4, one end of the spring 5 contacts with the bottom surface of the first blind hole 23, the opposite end of the spring 5 contacts with the side surface of the connector 4 facing the contact 2, and the spring 5 is in a compressed state. When the distance between the electric pressure contactor and the element matched with the electric pressure contactor is changed within the design range, the precompressed spring 5 can ensure that the electric pressure contactor and the other conductive element which relatively moves are always in a connection state so as to ensure that good current or signal conduction is kept between the two elements.
Further, a connecting column 41 is axially disposed at one end of the connecting body 4 facing the contact 2, one end of the spring 5 facing the connecting body 4 is sleeved in the connecting column 41, and one end of the connecting column 41 facing the contact 2 is located in the first blind hole 23, so that the first blind hole 23 can ensure that the compression of the part of the spring 5 located in the first blind hole 23 is in an axial direction, and the first connecting column 41 can ensure that the part of the spring 5 sleeved in the connecting column 41 is compressed in an axial direction, thereby ensuring that the structural stability of the voltage force contactor of the invention is improved.
With continued reference to fig. 1 and 2, an end of the contact 2 facing away from the first protrusion 222 is provided with a second blind hole 24 in an axial direction, and the second blind hole 24 is provided with a conductive cap 6.
In the electric pressure contactor of the present invention, the contact 2 increases the axial length of the contact 2 and thus the axial length of the spring 5 by providing the second guiding section 22 matched with the housing 1; the axial direction of the contact 2 is provided with an end hole 13, so that the axial length of the spring 5 is further increased, and when two elements generate the same displacement change amount, namely, the spring 5 generates the same deformation amount, compared with the prior art, the spring mounting axial direction length of the voltage force contactor is larger, and the deformation amount of the spring 5 is relatively smaller, so that the fatigue degree of the spring 5 is smaller, and the service life of the spring 5 and the structural stability of the voltage force contactor are further improved.
Claims (2)
1. The utility model provides an electric pressure contactor, includes hollow casing (1), cover is equipped with in casing (1) can be in casing (1) reciprocating motion's contact (2), its characterized in that: the shell (1) is provided with a first guide hole (11) and a second guide hole (12) which are communicated in sequence, the contact (2) comprises a first guide section (21) and a second guide section (22) which are integrally connected, the first guide section (21) is sleeved in the first guide hole (11), and the first guide section (21) is in clearance fit with the first guide hole (11); the second guide section (22) is sleeved in the second guide hole (12), the second guide section (22) is provided with a first convex part (221) and a second convex part (222), and the second convex part (222) is in clearance fit with the second guide hole (12);
the contact (2) is sleeved with an elastic piece (3), the elastic piece comprises two end parts (32) which are oppositely arranged, and a drum part (33) connected between the two end parts (32), and the outer diameter of the drum part (33) is larger than that of the two end parts (32); the drum part (33) is in fit contact with the second guide hole (12), and the drum diameter of the drum part (33) is larger than the inner diameter of the second guide hole (12); the two end parts (32) are respectively in pressing contact with the first convex part (221) and the second convex part (222); the inner diameter of the second guide hole (12) is larger than the inner diameter of the first guide hole (11), and the outer diameter of the first convex part (221) is larger than the inner diameter of the first guide hole (11); the outer diameter of the first protrusion (221) is smaller than the outer diameter of the second protrusion (222);
an end hole (13) is formed in one end, far away from the contact (2), of the shell (1), and a connector (4) is arranged in the end hole (13); a spring (5) capable of driving the contact (2) to axially reciprocate along the shell (1) is arranged between the contact (2) and the connecting body (4); a first blind hole (23) is axially formed in one end, facing the connecting body (4), of the contact (2), one end of the spring (5) is in contact with the bottom surface of the first blind hole (23), and the opposite end of the spring (5) is in contact with the side surface, facing the contact (2), of the connecting body (4); a connecting column (41) is axially arranged at one end, facing the contact (2), of the connecting body (4), and one end, facing the connecting body (4), of the spring (5) is sleeved in the connecting column (41);
one end of the contact (2) deviating from the first convex part (222) is axially provided with a second blind hole (24), and a conductive cap (6) is arranged in the second blind hole (24).
2. The electrical force contactor according to claim 1, wherein: a plurality of gaps (31) are arranged on the circumferential surface of the drum part (33), and the gaps (31) radially penetrate through the circumferential surface of the drum part (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710627916.3A CN107240799B (en) | 2017-07-28 | 2017-07-28 | Electric pressure contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710627916.3A CN107240799B (en) | 2017-07-28 | 2017-07-28 | Electric pressure contactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107240799A CN107240799A (en) | 2017-10-10 |
| CN107240799B true CN107240799B (en) | 2023-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710627916.3A Active CN107240799B (en) | 2017-07-28 | 2017-07-28 | Electric pressure contactor |
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| Country | Link |
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| CN (1) | CN107240799B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946813A (en) * | 2017-11-21 | 2018-04-20 | 东莞市星全工业有限公司 | Spring probe |
| CN109848622A (en) * | 2017-11-30 | 2019-06-07 | 湖南红太阳新能源科技有限公司 | Pressing tool suitable for solar components stacking bond technology |
| CN107942109A (en) * | 2017-12-21 | 2018-04-20 | 东莞市燊瑞电子科技有限公司 | A kind of testing needle for being used for transmission high-frequency signal |
| CN114243341A (en) * | 2022-01-18 | 2022-03-25 | 东莞市盘丝电子科技有限公司 | Multi-contact wire coil contact finger and connector using same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202025900U (en) * | 2011-03-25 | 2011-11-02 | 富港电子（东莞）有限公司 | Probe connector |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2582628Y2 (en) * | 1992-12-18 | 1998-10-08 | 株式会社ヨコオ | Spring connector |
| JPH1012305A (en) * | 1996-06-19 | 1998-01-16 | Nippon Konekuto Kogyo Kk | Pressure contact probe connector for printed board |
| DE10143200A1 (en) * | 2001-09-04 | 2003-04-03 | Era Contact Gmbh | Electrical pressure contact |
| CN2682638Y (en) * | 2003-11-20 | 2005-03-02 | 上海莫仕连接器有限公司 | Crimp connected conductive terminal |
| DE102004033864A1 (en) * | 2004-07-13 | 2006-02-16 | Era-Contact Gmbh | Electrical pressure contact |
| CN201285803Y (en) * | 2008-09-29 | 2009-08-05 | 凡甲电子(苏州)有限公司 | Crimp connected conductive terminal |
| CN202395191U (en) * | 2011-05-20 | 2012-08-22 | 富港电子（东莞）有限公司 | Probe connector |
| CN206301979U (en) * | 2016-12-28 | 2017-07-04 | 瑞安市超声电器厂 | High-voltage connector |
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2017
- 2017-07-28 CN CN201710627916.3A patent/CN107240799B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202025900U (en) * | 2011-03-25 | 2011-11-02 | 富港电子（东莞）有限公司 | Probe connector |
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| CN107240799A (en) | 2017-10-10 |
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