CN116453908A - High-voltage direct-current contactor - Google Patents
High-voltage direct-current contactor Download PDFInfo
- Publication number
- CN116453908A CN116453908A CN202310410729.5A CN202310410729A CN116453908A CN 116453908 A CN116453908 A CN 116453908A CN 202310410729 A CN202310410729 A CN 202310410729A CN 116453908 A CN116453908 A CN 116453908A
- Authority
- CN
- China
- Prior art keywords
- clamping opening
- circuit board
- coil
- connecting piece
- conductive connecting
- 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.)
- Pending
Links
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 3
- 238000009434 installation Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
- H01H50/443—Connections to coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
-
- 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
- H01R13/2414—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means conductive elastomers
-
- 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
- H01R13/2428—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using meander springs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention relates to a high-voltage direct-current contactor, which comprises a coil, a coil leading-out end, a circuit board used for controlling the coil, and a conductive connecting piece used for electrically connecting the coil leading-out end and the circuit board, wherein the conductive connecting piece comprises a first clamping opening and a second clamping opening, the openings of the first clamping opening are parallel and opposite, the first clamping opening clamps the coil leading-out end so as to enable the conductive connecting piece and the coil leading-out end to be in electrical contact, and the second clamping opening clamps the circuit board so as to enable the conductive connecting piece and the circuit board to be in electrical contact. The conductive connecting piece can reliably and simply realize the electric connection between the coil leading-out end and the circuit board, does not occupy a lot of space inside the relay, particularly does not influence the installation space of the circuit board and the arc extinguishing space of the arc extinguishing system, and is beneficial to the installation of the internal components of the relay and the overall miniaturization of the relay.
Description
Technical Field
The invention relates to a contactor manufacturing technology, in particular to a coil leading-out structure of a contactor.
Background
The contactor is an automatic control electric appliance, which uses a coil to flow current to generate a magnetic field so as to close a contact to control a load. In a prior art high voltage dc contactor, a control circuit board is provided on a driving coil, so that a coil lead-out structure thereof includes a connection portion with the circuit board. In the prior art, the coil leading-out end and the circuit board are often welded through the signal wire, however, because the circuit board is positioned in the internal cavity of the product, the reliable connection position cannot be established for the signal wire to be welded due to space limitation, and the temperature in the internal cavity of the contactor is extremely high in use, so that the temperature resistance level of the signal wire is a big test, and in addition, the connection position of the signal wire is easily worn due to vibration in the use process of the contactor, so that the reliability is poor.
Disclosure of Invention
Therefore, in order to solve the above problems, the present invention provides a structure-optimized high-voltage direct current contactor.
The invention is realized by adopting the following technical scheme:
the invention provides a high-voltage direct-current contactor, which comprises a coil, a coil leading-out end, a circuit board used for controlling the coil, and a conductive connecting piece used for electrically connecting the coil leading-out end and the circuit board, wherein the conductive connecting piece comprises a first clamping opening and a second clamping opening, the openings of the first clamping opening are parallel and opposite, the first clamping opening clamps the coil leading-out end so as to enable the conductive connecting piece and the coil leading-out end to be in electrical contact, and the second clamping opening clamps the circuit board so as to enable the conductive connecting piece and the circuit board to be in electrical contact.
In one embodiment, the conductive connecting piece is a conductive elastic piece, the first clamping opening and the second clamping opening are elastic bayonets, and the coil leading-out end and the circuit board are respectively and elastically clamped in the first clamping opening and the second clamping opening.
In one embodiment, the conductive connecting piece is in an S-shaped bent sheet structure.
In one embodiment, the circuit board is inserted into the second clamping opening with one end of the board surface, the first clamping opening is positioned on one side of the board surface of the circuit board, and the projection of the coil outgoing end and the circuit board in the direction perpendicular to the board surface has an overlapped part.
Wherein, in an embodiment, the inner wall of the first clamping opening and/or the second clamping opening is provided with a protruding part.
In one embodiment, the conductive connecting piece includes a middle sheet body shared by the first clamping opening and the second clamping opening, and two sides of the middle sheet body are respectively provided with a protruding part which is staggered with each other.
Wherein, in one embodiment, at least one end of the conductive connecting piece is tilted so that the opening of the first and/or second jaws is a flared shape.
Wherein in one embodiment, the conductive connection is made of an elastic copper alloy or silver alloy or stainless steel material.
In one embodiment, the device further comprises an outer shell, the coil leading-out end is a leading-out needle, a positioning hole is formed in the outer shell, and the coil leading-out end penetrates through the positioning hole and is inserted into the first clamping opening.
Wherein, in one embodiment, still include the installation setting up the inside plastic frame of contactor, electrically conductive connecting piece fixed connection is on the plastic frame.
Wherein in one embodiment, the conductive connector is riveted to the plastic frame.
The invention has the following beneficial effects: the S-shaped special structure of the conductive connecting piece in the invention ensures that the occupied space is extremely small, the electric connection between the coil leading-out end and the circuit board can be reliably and simply realized, and a plurality of spaces inside the contactor can not be occupied, especially the installation space of the circuit board and the arc extinguishing space of an arc extinguishing system can not be influenced, thereby being beneficial to the installation of the internal components of the contactor and the overall miniaturization of the contactor.
Drawings
FIG. 1 is a schematic perspective view of a HVDC contactor of an embodiment;
FIG. 2 is a cross-sectional view of a HVDC contactor of an embodiment;
FIG. 3 is an enlarged view of a portion of FIG. 2 at M;
FIG. 4 is a schematic view of a plastic frame, circuit board and coil terminals in an embodiment;
fig. 5 is a schematic perspective view of a conductive connector in an embodiment.
Detailed Description
For further illustration of the various embodiments, the invention is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present invention. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.
The invention will now be further described with reference to the drawings and detailed description.
Referring to fig. 1 to 5, as a preferred embodiment of the present invention, there is provided a high voltage dc contactor including an outer housing, which in turn includes a base 1 and an upper cover 7. The contactor also comprises basic functional components (not shown in the figure) such as a contact system, an arc extinguishing system, a driving system and the like, wherein the driving system comprises a coil, pins of the coil are electrically connected with a circuit board 3 fixedly arranged in an inner cavity of the base 1, and energy-saving control is realized on the coil through the circuit board 3. The coil leading-out end 2 is penetrated out of the upper cover 7, and the coil leading-out end 2 and the circuit board 3 are electrically connected through the conductive connecting piece 4.
Specifically, as shown in fig. 2 and 3, the coil lead-out end 2 is a lead-out needle, the upper cover 7 is provided with a positioning hole 110, and the coil lead-out end 2 passes through the positioning hole 110. The conductive connecting piece 4 is a conductive elastic piece and is in an S-shaped bending sheet structure, and comprises a first clamping opening 41 and a second clamping opening 42 which are arranged side by side and are in opposite directions, one end of the coil outgoing end 2 penetrates out of the positioning hole 110, the other end of the coil outgoing end is inserted into the first clamping opening 41, the coil outgoing end 2 is inserted into the first clamping opening 41 to press the first clamping opening 41 to deform, and therefore the coil outgoing end 2 and the first clamping opening 41 are kept in tight electrical contact by elastic restoring force of the first clamping opening 41 (in the cross section of fig. 2, the largest diameter of the coil outgoing end 2 is not cut, and a person skilled in the art can understand the assembly relation of the coil outgoing end 2 and the first clamping opening 41 by matching with text description). The circuit board 3 is inserted into the second clamping opening 42, and the circuit board 3 is inserted into the second clamping opening 42 to press the second clamping opening 42 to deform, so that the circuit board 3 and the second clamping opening 42 are kept in close electric contact by the elastic restoring force of the second clamping opening 42. After assembly, the conductive connection 4 serves as an intermediate electrical connection for reliable electrical connection of the coil terminals 2 to the circuit board 3. In other embodiments, the conductive connecting piece 4 may be in other shapes, as long as the conductive connecting piece has two bayonets with openings side by side and opposite to each other, but the S-shaped special structure of the conductive connecting piece 4 in this embodiment makes the occupied space of the conductive connecting piece extremely small, so that the electrical connection between the coil leading-out terminal 2 and the circuit board 3 can be reliably and simply realized, and a lot of space inside the contactor is not occupied, especially the installation space of the circuit board 3 and the arc extinguishing space of the arc extinguishing system are not affected, and the installation of the internal components of the contactor and the overall miniaturization of the contactor are facilitated. In this embodiment, the conductive connecting piece 4 is of a spring structure, and the coil lead-out terminal 2 and the circuit board 3 are clamped by elastic force of the elastic first clamping opening 41 and the elastic second clamping opening 42 to achieve electrical contact, but in other embodiments, the conductive connecting piece 4 may also be electrically contacted with the coil lead-out terminal 2 and the circuit board 3 by other fixed connection modes, for example, the first clamping opening 41 and the second clamping opening 42 are not elastic pieces, but the distance between the first clamping opening 41 and the second clamping opening 42 is adjusted by screws to achieve clamping of the coil lead-out terminal 2 and the circuit board 3, but the conductive connecting piece 4 adopting the spring structure in this embodiment is easy to manufacture and assemble.
In the present embodiment, the circuit board 3 is inserted into the second clamping opening 42 with one end of the board surface thereof, the first clamping opening 41 is positioned at one side of the board surface of the circuit board 3, and the projections of the coil lead-out terminal 2 and the circuit board 3 in the direction perpendicular to the board surface of the circuit board 3 have overlapping portions. In the prior art, some coil outlets 2 are arranged right above the circuit board 3, and under the requirement of the height specification of the contactor, the circuit board 3 has to be arranged to be sunk more, but in the embodiment, the coil outlets 2 and the circuit board 3 are connected through the conductive connecting piece 4, so that the coil outlets 2 are arranged at one side of the board surface of the circuit board 3 in a staggered manner, the space occupation of the coil outlets in the height direction of the contactor is smaller, and more space is also arranged inside the contactor to arrange the circuit board 3. Meanwhile, the first clamping opening 41 and the second clamping opening 42 of the conductive connecting piece 4 are arranged side by side, so that the space occupation of the conductive connecting piece 4 in the thickness direction (the thickness direction is also the thickness direction of a sheet body of the middle sheet body 40 described below, namely the direction of 'X1-X2' in FIG. 5) is small, and the conductive connecting piece can be close to the outer edge of the ceramic cover of the contactor as much as possible on the premise of meeting the installation space of the circuit board 3, so as to provide a larger arc extinguishing space.
In order to improve the contact reliability of the coil terminals 2 and the circuit board 3 with the conductive connecting member 4, the present embodiment is also provided with projections 44, 43 in the inner wall of the first nip 41, and projections 45, 46 in the inner wall of the second nip 42. Of course, in other embodiments, only the inner wall of the first clamping opening 41 or the second clamping opening 42 may be provided with the protruding portions, and the number of the protruding portions may be increased or decreased accordingly. In this embodiment, the protruding portions 44 and 43 are respectively disposed on the two opposite inner walls of the first clamping opening 41, and the protruding portions 45 and 46 are respectively disposed on the two opposite inner walls of the second clamping opening 42, so that the connection reliability can be greatly improved on the basis of adopting as few protruding portions as possible, and the cost performance is higher. The conductive connector 4 includes a middle sheet 40 shared by the first and second clamping openings 41 and 42, and the protruding portions 44 and 45 are provided on both sides of the middle sheet 40 and are offset from each other. The protruding portions 44 and 45 are designed on the middle sheet 40, and can be manufactured more simply by a stamping process, and in other embodiments, the protruding portions 44 and 45 may be aligned with each other, but in this embodiment, the protruding portions 44 and 45 are configured to be offset from each other, so that when one bayonet of the first and second clamping ports 41 and 42 is inserted into the lead-out terminal 2 or the circuit board 3, a force can be applied to the other bayonet obliquely through the middle sheet 40, thereby improving the clamping effect of the first and second clamping ports 41 and 42.
In this embodiment, both ends 47, 48 of the conductive connector 4 are tilted so that the opening of the second jaw 42 of the first jaw 41 is in an expanded shape. So that the outer flaring can play a role of guiding insertion during insertion of the coil-out terminal 2 into the first nip 41 and insertion of the circuit board 3 into the second nip 42. Of course, in other embodiments, only one end of the conductive connecting member may be configured to be tilted.
The conductive connecting member 4 in this embodiment is made of an elastic copper alloy or silver alloy or stainless steel to ensure good elastic performance and strength.
The contactor further comprises a plastic frame 5 arranged inside the contactor, and in the embodiment, the conductive connecting piece 4 is fixedly connected to the plastic frame 5, so that the position reliability of the conductive connecting piece 4 is further ensured, and the shockproof performance of a product is improved. Specifically, in this embodiment, the conductive connector 4 is provided with a rivet hole 49, and the conductive connector 4 is fixed to the plastic frame 5 by riveting with the rivet 6.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. The high-voltage direct current contactor comprises a coil, a coil leading-out end and a circuit board for controlling the coil, and is characterized in that: the coil lead-out end is clamped by the first clamping opening so as to be in electrical contact with the coil lead-out end, and the circuit board is clamped by the second clamping opening so as to be in electrical contact with the circuit board.
2. The high voltage dc contactor according to claim 1, wherein: the conductive connecting piece is a conductive elastic piece, the first clamping opening and the second clamping opening are elastic clamping openings, and the coil leading-out end and the circuit board are respectively and elastically clamped in the first clamping opening and the second clamping opening.
3. The high voltage direct current contactor according to claim 1 or 2, wherein: the conductive connecting piece is of an S-shaped bending sheet structure.
4. The high voltage direct current contactor according to claim 1 or 2, wherein: the circuit board is inserted into the second clamping opening with one end of the board surface, the first clamping opening is positioned on one side of the board surface of the circuit board, and the projection of the coil leading-out end and the circuit board in the direction perpendicular to the board surface is provided with an overlapped part.
5. The high voltage dc contactor according to claim 2, wherein: the inner wall of the first clamping opening and/or the second clamping opening is provided with a protruding part.
6. The high voltage dc contactor according to claim 2, wherein: the conductive connecting piece comprises a middle sheet body shared by the first clamping opening and the second clamping opening, and two sides of the sheet body of the middle sheet body are respectively provided with a protruding part which is staggered with each other.
7. The high voltage direct current contactor according to claim 1 or 2, wherein: at least one end of the conductive connecting piece is tilted so that the opening of the first clamping opening and/or the second clamping opening is in an outward expansion shape.
8. The high voltage dc contactor according to claim 2, wherein: the conductive connecting piece is made of elastic copper alloy or silver alloy or stainless steel material.
9. The high voltage dc contactor according to claim 1, wherein: the coil extraction end is an extraction needle, a positioning hole is formed in the outer shell, and the coil extraction end penetrates through the positioning hole and is inserted into the first clamping opening.
10. The high voltage dc contactor according to claim 1, wherein: the contactor also comprises a plastic frame which is arranged inside the contactor, and the conductive connecting piece is fixedly connected to the plastic frame.
11. The high voltage dc contactor according to claim 10, wherein: the conductive connecting piece is riveted and fixed on the plastic frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310410729.5A CN116453908A (en) | 2023-04-17 | 2023-04-17 | High-voltage direct-current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310410729.5A CN116453908A (en) | 2023-04-17 | 2023-04-17 | High-voltage direct-current contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116453908A true CN116453908A (en) | 2023-07-18 |
Family
ID=87125140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310410729.5A Pending CN116453908A (en) | 2023-04-17 | 2023-04-17 | High-voltage direct-current contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116453908A (en) |
-
2023
- 2023-04-17 CN CN202310410729.5A patent/CN116453908A/en active Pending
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
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