CN108931668B - High-current conducting device - Google Patents
High-current conducting device Download PDFInfo
- Publication number
- CN108931668B CN108931668B CN201710362072.4A CN201710362072A CN108931668B CN 108931668 B CN108931668 B CN 108931668B CN 201710362072 A CN201710362072 A CN 201710362072A CN 108931668 B CN108931668 B CN 108931668B
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- contact
- probe
- mounting groove
- mounting seat
- conducting device
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- 239000000523 sample Substances 0.000 claims abstract description 39
- 239000002184 metal Substances 0.000 claims description 26
- 229910052751 metal Inorganic materials 0.000 claims description 26
- 230000004308 accommodation Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 230000002708 enhancing effect Effects 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 12
- 239000007769 metal material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
Abstract
The invention provides a high-current conducting device which comprises a probe, a needle rod sleeved on the periphery of the probe and connected with the probe in a sliding manner, and a contact head, wherein the contact head is sleeved on the periphery of the front end of the probe, and the contact head is detachably connected with the needle rod. According to the high-current conducting device, the contact head and the needle rod are split, different materials are adopted according to the functional requirements of different areas, the strength of the contact end is enhanced, the service life of the high-current conducting device is prolonged, the structure is simple, the manufacturing is convenient, and the use cost is well controlled.
Description
Technical Field
The invention belongs to the technical field of electric element detection, and particularly relates to a high-current conducting device.
Background
With the development of society, electronic products are increasingly used, wherein an electrical component (such as a battery) needs to be inspected and qualified before being shipped and assembled. At present, the main contents of detecting an electrical element include testing, capacity grading, formation and the like, and when the electrical element is detected, a conductive device is required to be electrically connected with the electrical element to transmit electrical signals such as current and voltage, and particularly, the high-current conductive device is an indispensable testing tool in testing. In order to ensure that the high-current conducting device has good conducting performance and small contact impedance, the parts of the needle rod and the contact end generally adopt an integrated structure, but the contact end surface is easy to wear because the contact end surface can generate contact friction or extrusion with a position to be tested, so that the service life is influenced, and the use cost is increased.
Disclosure of Invention
The invention aims to provide a high-current conducting device to solve the technical problem that the use cost is increased due to the fact that a contact end of a needle rod in an integrated design is easy to wear in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: provided is a high-current conducting device comprising: the probe comprises a probe, a needle rod which is sleeved on the periphery of the probe and is in sliding connection with the probe, and a contact head which is sleeved on the periphery of the front end of the probe and is detachably connected with the needle rod.
Further, the needle bar structure comprises an auxiliary conductive structure, wherein the auxiliary conductive structure is positioned between the contact head and the needle bar and is respectively contacted with the contact head and the needle bar.
Further, the needle bar front end is equipped with the mounting groove, the contact head includes contact panel, mount pad and enables the probe accommodation hole that the probe runs through, contact panel locates the front end of mount pad, the probe accommodation hole runs through contact panel reaches the mount pad, the mount pad with for dismantling the connection between the mounting groove.
Further, the mounting seat is a cylindrical member, and the mounting groove is a cylindrical groove matched with the mounting seat.
Further, supplementary conductive structure includes metal elasticity rand and opening direction orientation the centraxonial annular holding tank of mounting groove, the annular holding tank is located in the mounting groove, just the annular holding tank with the mounting groove is coaxial to be set up, metal elasticity rand with annular holding tank joint, just the interior terminal surface salient of metal elasticity rand in the annular holding tank.
Further, still including locating the inside elasticity position circle of metal elasticity rand, under free state, the external diameter of elasticity position circle is not less than the external diameter of annular holding tank.
Further, the annular holding tank is located the back end of mounting groove, the front portion of mounting groove is equipped with the internal thread, the tip be equipped with before the mount pad with interior screw-thread fit's external screw thread, the mount pad back end with mounting groove clearance fit.
Further, the mounting groove and the mounting seat are in interference fit.
Further, the outer diameter of the contact panel is larger than the inner diameter of the mounting groove.
Furthermore, the contact panel comprises a panel body and a plurality of contact protrusions arranged on the front panel surface of the panel body.
The high-current conducting device provided by the invention has the beneficial effects that: compared with the prior art, the high-current conducting device has the advantages that the contact head and the needle rod are arranged in a split mode, different materials can be adopted according to the functional requirements of different areas, the contact head can be made of wear-resistant metal materials, the needle rod can be made of common metal materials with good conducting performance, the strength of a contact end is enhanced, the service life of the high-current conducting device is prolonged, the structure is simple, the manufacturing is convenient, and the use cost is well controlled.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a high-current conducting device according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
fig. 3 is a schematic structural diagram of a high-current conducting device according to a second embodiment of the present invention;
FIG. 4 is a schematic view of the assembled structure of the probe, the shaft and the auxiliary conductive structure of FIG. 3;
FIG. 5 is a schematic view of the assembled structure of the probe and the needle shaft of FIG. 4;
fig. 6 is a schematic structural diagram of a high-current conducting device according to a third embodiment of the present invention;
fig. 7 is a bottom view of the contact of fig. 6.
Wherein, in the figures, the respective reference numerals:
1-a probe; 2-needle bar; 3-contact head; 31-a touch panel; 311-a panel body; 312-contact bumps; 313-a connection platform; 32-a mounting seat; 33-probe-receiving holes; 4-an auxiliary conductive structure; 41-metal elastic collar; 42-an annular receiving groove; 43-an elastic locating ring; 5-mounting grooves; 6-internal thread; 7-external thread
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "plurality" or "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to fig. 6, a description will now be given of a large current conducting device according to the present invention. The high-current conducting device comprises a probe 1, a needle bar 2 which is sleeved on the periphery of the probe 1 and is in sliding connection with the probe 1, and a contact head 3, wherein the contact head 3 is sleeved on the periphery of the front end of the probe 1, and the contact head 3 is detachably connected with the needle bar 2. The probe 1 can slide along the axial direction of the needle bar 2, under the free state, the probe 1 protrudes out of the contact head 3, the probe contacts with a position to be tested firstly in the installation process, then the probe is extruded and slides, the contact head 3 contacts with the position to be tested, and after the contact is completed, the large-current conducting device is integrally fixed, so that the test can be started. In the test process, the probe 1 and the contact 3 conduct different current signals respectively, the test structure is simple, and the test process efficiency is high.
Compared with the prior art, the high-current conducting device provided by the invention has the advantages that the contact head 3 and the needle rod 2 are arranged in a split mode, different materials can be adopted according to the functional requirements of different areas, the contact head 3 can be made of wear-resistant metal materials, the needle rod 2 can be made of common metal materials with good conducting performance, the strength of a contact end is enhanced, the service life of the high-current conducting device is prolonged, the structure is simple, the manufacture is convenient, and the use cost is well controlled.
Further, referring to fig. 1 to fig. 6, as an embodiment of the high current conducting device provided by the present invention, the device further includes an auxiliary conducting structure 4, the auxiliary conducting structure 4 is located between the contact head 3 and the needle bar 2, and the auxiliary conducting structure 4 is respectively in contact with the contact head 3 and the needle bar 2. Owing to set up supplementary conductive structure 4, can strengthen the electric conductive property between contact 3 and the needle bar 2, reduced the influence of contact impedance to electric conductive property to a very big extent, the testing result can keep accurate.
Further, referring to fig. 1 to 6, as an embodiment of the large current conducting device provided by the present invention, a mounting groove 5 is formed at a front end of the needle bar 2, the contact head 3 includes a contact panel 31, a mounting seat 32 and a probe accommodating hole 33 for allowing the probe 1 to penetrate therethrough, the contact panel 31 is disposed at a front end of the mounting seat 32, the probe accommodating hole 33 penetrates through the contact panel 31 and the mounting seat 32, and the mounting seat 32 is detachably connected to the mounting groove 5. During the installation, the rear end of contact 3 is connected with the front end of needle bar 2, and contact 3 can be run through to probe 1 simultaneously, does not influence probe 1's normal sliding action, and the structure sets up rationally, and occupation space is little, the test of being convenient for is used.
Further, referring to fig. 1 to 6, as an embodiment of the high current conducting device provided by the present invention, the mounting seat 32 is a cylindrical member, and the mounting groove 5 is a cylindrical groove matched with the mounting seat 32. The structure has the advantages of simple processing, lower processing precision requirement, small influence on the production process, compatibility on the arrangement of various connecting structures, convenient positioning in installation and improvement on the assembly efficiency.
Specifically, referring to fig. 1 to fig. 6, as a specific embodiment of the large current conducting device provided by the present invention, the auxiliary conducting structure 4 includes a metal elastic collar 41 and an annular accommodating groove 42 having an opening direction facing a central axis of the mounting groove 5, the annular accommodating groove 42 is disposed in the mounting groove 5, the annular accommodating groove 42 and the mounting groove 5 are coaxially disposed, the metal elastic collar 41 is connected to the annular accommodating groove 42 in a clamping manner, and an inner end surface of the metal elastic collar 41 protrudes out of the annular accommodating groove 42. The metal elastic clamping ring 41 is provided with at least one circle around the middle shaft of the mounting groove 5, the metal elastic clamping ring 41 and the annular accommodating groove 42 can be in interference fit or clearance fit, the annular accommodating groove 42 ensures the stability of the position of the metal elastic clamping ring 41, and the metal elastic clamping ring is not easy to fall off in the assembling and disassembling process. Because metal elasticity rand 41 itself has certain elasticity, get into the back at mount pad 32, it enables metal elasticity rand 41 and takes place certain elastic deformation, and then increases actual electrically conductive area of contact, thereby make effective area of contact maximize, the influence that furthest's reduction contact resistance brought makes the accuracy of test obtain guaranteeing, and simultaneously, elastic deformation's emergence can also play certain fastening effect to mount pad 32, the fastness of reinforcing connection, and then improve the stability in use.
Further, referring to fig. 1 to fig. 6, as an embodiment of the high current conducting device provided by the present invention, the metal elastic collar 41 is a spring ring. Its elasticity is good, and use cost is low, and a plurality of spring coils of spring can increase the effective area of contact between needle bar 2 and the contact 3 when the test, and simultaneously, the hollow spring is also convenient for dispel the heat, has reduced the influence of temperature variation to the voltage difference, strengthens the accuracy of test result.
Further, referring to fig. 2, fig. 3 and fig. 6, as an embodiment of the large current conducting device provided by the present invention, the large current conducting device further includes an elastic positioning ring 43 disposed inside the metal elastic collar 41, and in a free state, an outer diameter of the elastic positioning ring 43 is not smaller than an outer diameter of the annular accommodating groove 42. The elastic positioning ring 43 can provide enough tension for the metal elastic collar 41 inside the metal elastic collar 41, so that the metal elastic collar 41 is firmly fixed in the annular accommodating groove 42.
Alternatively, referring to fig. 2, fig. 3 and fig. 6, as an embodiment of the high-current conducting device provided by the present invention, in order to ensure the stability of the assembly and meet the requirement of the conducting performance, the depth of the annular receiving groove 42 is greater than the radius of the cross section of the metal elastic collar 41, but less than the diameter of the cross section of the metal elastic collar 41, and the difference between the depth of the annular receiving groove 42 and the radius of the cross section of the metal elastic collar 41 is not more than 2 mm.
Further, referring to fig. 6, as a specific embodiment of the large current conducting device provided by the present invention, an annular receiving groove 42 is located at the rear end of the mounting groove 5, an internal thread 6 is disposed at the front portion of the mounting groove 5, an external thread 7 matched with the internal thread 6 is disposed at the front end of the mounting seat 32, and the rear end of the mounting seat 32 is in clearance fit with the mounting groove 5. The front part of the mounting groove 5 is connected with the front end part of the mounting seat 32 through a thread structure, the rear end part of the mounting seat 32 can be contacted with the auxiliary conductive structure 4, the connection structure is firm, the mounting and dismounting are convenient, and the new conductive performance can be ensured.
Further, referring to fig. 1 to fig. 5, as an embodiment of the large current conducting apparatus provided by the present invention, the mounting groove 5 and the mounting seat 32 are in an interference fit. The mounting groove 5 is directly connected with the mounting seat 32 in an inserting mode, the connecting structure is simple, the connecting effect is reliable, and the using stability is enhanced.
Further, as a specific embodiment of the high-current conducting device provided by the invention, the needle bar 2 and the contact head 3 can be connected by welding, threaded fasteners and the like, so that the connection between the contact head 3 and the needle bar 2 can be ensured to be stable and the conducting performance is good.
Specifically, referring to fig. 2, fig. 3, fig. 6 and fig. 7, as an embodiment of the large current conducting device provided by the present invention, the touch panel 31 includes a panel body 311 and a plurality of touch protrusions 312 disposed on a front surface of the panel body 311. The outer edge of the panel body 311 protrudes out of the contact protrusion 312, which facilitates processing.
Further, referring to fig. 1 to 6, as an embodiment of the high current conducting device provided by the present invention, the outer diameter of the contact panel 31 is larger than the inner diameter of the mounting groove 5, which can play an axial limiting role during assembly, so as to ensure that the contact protrusion 312 can protrude out of the needle bar 2, thereby effectively conducting a current signal.
Specifically, referring to fig. 7, as an embodiment of the large current conducting device provided by the present invention, the connecting platforms 313 are symmetrically disposed on two sides of the panel body 311, so as to provide convenience for applying force during assembly and improve assembly efficiency.
Alternatively, as a specific embodiment of the large current conducting device provided by the present invention, the needle bar 2 is a brass member, which is low in cost and excellent in conducting performance; the contact 3 is a beryllium copper member, which is hard and is not easy to damage after repeated use. The two parts use different materials, so that the service life of the large-current conducting device is prolonged on the premise of ensuring the conducting performance, the wear degree of parts is reduced, and the use cost can be well controlled.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. Heavy current electric installation, including probe and suit in the probe periphery and with probe sliding connection's needle bar, its characterized in that: the probe comprises a probe front end and a probe rod, and is characterized by further comprising a contact head and an auxiliary conductive structure, wherein the contact head is sleeved on the periphery of the probe front end, the contact head is detachably connected with the needle rod, the auxiliary conductive structure is positioned between the contact head and the needle rod, the auxiliary conductive structure is respectively contacted with the contact head and the needle rod, the auxiliary conductive structure is used for enhancing the conductive performance between the contact head and the iron rod, the needle rod front end is provided with a mounting groove, the contact head comprises a contact panel, a mounting seat and a probe accommodating hole capable of enabling the probe to penetrate through, the contact panel is arranged at the front end of the mounting seat, the probe accommodating hole penetrates through the contact panel and the mounting seat, and the mounting seat is detachably connected with the mounting groove; the front part of the mounting groove is provided with an internal thread, the front end part of the mounting seat is provided with an external thread matched with the internal thread, the rear end part of the mounting seat is in clearance fit with the mounting groove or is directly connected with the mounting seat in an inserting way, and the mounting groove is in interference fit with the mounting seat; the contact panel comprises a panel body and a plurality of contact protrusions arranged on the front panel surface of the panel body, the contact protrusions are integrally arranged with the panel body, and the contact protrusions are in contact with the position to be detected through the contact panel to conduct current signals.
2. The high current conducting device of claim 1, wherein: the mounting seat is a cylindrical component, and the mounting groove is a cylindrical groove matched with the mounting seat.
3. The high current conducting device of claim 2, wherein: supplementary conductive structure includes metal elasticity rand and opening direction orientation the centraxonial annular holding tank of mounting groove, the annular holding tank is located in the mounting groove, just the annular holding tank with the coaxial setting of mounting groove, metal elasticity rand with annular holding tank joint, just the interior terminal surface salient of metal elasticity rand in the annular holding tank.
4. The high current conducting device of claim 3, wherein: still including locating the inside elastic positioning circle of metal elasticity rand, under free state, the external diameter of elastic positioning circle is not less than the external diameter of annular accommodation groove.
5. The high current conducting device of claim 3, wherein: the annular accommodating groove is located at the rear end part of the mounting groove.
6. The high current conducting device of claim 1, wherein: the outer diameter of the contact panel is larger than the inner diameter of the mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362072.4A CN108931668B (en) | 2017-05-22 | 2017-05-22 | High-current conducting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362072.4A CN108931668B (en) | 2017-05-22 | 2017-05-22 | High-current conducting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108931668A CN108931668A (en) | 2018-12-04 |
| CN108931668B true CN108931668B (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710362072.4A Active CN108931668B (en) | 2017-05-22 | 2017-05-22 | High-current conducting device |
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| CN (1) | CN108931668B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597301A (en) * | 2016-11-24 | 2017-04-26 | 李莉 | Heavy current plane contact conductive device |
| CN106645818A (en) * | 2016-12-13 | 2017-05-10 | 深圳市瑞能实业股份有限公司 | Large-current conductive device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8851920B2 (en) * | 2011-10-12 | 2014-10-07 | Switchlab Inc. | Plug-in wire connection terminal structure |
| CN203707417U (en) * | 2014-02-28 | 2014-07-09 | 深圳市金立诚电子有限公司 | Novel end-surface-contact contact pair capable of bearing large current |
| CN106680543B (en) * | 2016-12-13 | 2019-11-29 | 深圳市瑞能实业股份有限公司 | The application method of conducting heavy current device |
-
2017
- 2017-05-22 CN CN201710362072.4A patent/CN108931668B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597301A (en) * | 2016-11-24 | 2017-04-26 | 李莉 | Heavy current plane contact conductive device |
| CN106645818A (en) * | 2016-12-13 | 2017-05-10 | 深圳市瑞能实业股份有限公司 | Large-current conductive device |
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| CN108931668A (en) | 2018-12-04 |
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Address after: 518000 floor 11, building A3, Nanshan Zhiyuan, No. 1001, Xueyuan Avenue, Changyuan community, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Patentee after: REPOWER TECHNOLOGY Co.,Ltd. Address before: 4 / F, No.2 factory building, tongfuyu industrial town, Liuxian Avenue, Nanshan District, Shenzhen City, Guangdong Province Patentee before: REPOWER TECHNOLOGY Co.,Ltd. |
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