CN211404810U - High-voltage interlocking mechanism for high-voltage connector - Google Patents
High-voltage interlocking mechanism for high-voltage connector Download PDFInfo
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- CN211404810U CN211404810U CN201922218954.0U CN201922218954U CN211404810U CN 211404810 U CN211404810 U CN 211404810U CN 201922218954 U CN201922218954 U CN 201922218954U CN 211404810 U CN211404810 U CN 211404810U
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- voltage interlock
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Abstract
The utility model discloses a high-voltage interlocking mechanism for a high-voltage connector, which comprises a first connecting part, a second connecting part and a connecting part, wherein the first connecting part is provided with a first shell and two first high-voltage interlocking terminals which are contained in the first shell; a second connection part having a second housing and a second high-voltage interlock terminal accommodated in the second housing; the second high-voltage interlock terminal is a fork-shaped structure having two receiving portions, two first high-voltage interlock terminals are respectively engaged in each of the two receiving portions, and the second high-voltage interlock terminal of the fork-shaped structure is configured to electrically communicate the two terminals.
Description
Technical Field
The utility model relates to an electrical connection technical field especially relates to a high-pressure interlocking mechanism for high-pressure connector.
Background
High Voltage Interlock (HVIL) mechanisms, i.e., a safety mechanism that uses low Voltage signals to monitor the integrity of the High Voltage circuit, are typically provided in High Voltage connectors. Theoretically, the low-voltage monitoring circuit is connected before the high-voltage monitoring circuit is disconnected, the necessary lead is kept in the middle, and the time can be determined according to the specific situation of a project. Particularly in the field of electric automobiles, in a high-voltage circuit in a vehicle, a high-voltage connector is required to be an electrical component having an HVIL function in order to ensure safety and reliability of the high-voltage circuit in the vehicle.
Fig. 1A shows a high-voltage interlock connection structure of a conventional high-voltage connector. In this high-voltage connector, a male end connector 1 and a female end connector 2 are included, two electric terminals 4 are provided in the female end connector 2, which are connected to cables, respectively, and two electric terminals 3 are provided in the male end connector 1, respectively, which are formed in a square shape having a recessed receiving portion into which the pin-shaped electric terminals 4 in the female end connector can be inserted, as shown in fig. 1B. The distal rear end of the receiving portion of the electrical terminal in the female end connector also forms a wiring portion, the two wiring portions being connected together by an electrically conductive wire (not shown) so that the two pin-like electrical terminals 4 in the female end connector 2 are brought into conduction of current when the male end connector 1 and the female end connector 2 are connected together.
However, in this conventional high-voltage connector, the two female electrical terminals 4 in the female connector are complicated in structure, and also need to be assembled into the main body of the insulating material of the connector after being connected by wire crimping, which is a time-consuming and labor-consuming process. Accordingly, there remains a need for improvements to existing high voltage connectors.
SUMMERY OF THE UTILITY MODEL
For overcoming the not enough of high-voltage interlocking mechanism among the high voltage connector among the prior art, improve high voltage connector medium-high voltage interlocking mechanism's manufacturing process, the utility model provides a high-voltage interlocking mechanism for high voltage connector, high-voltage interlocking mechanism includes: a first connecting section having a first housing and two first high-voltage interlock terminals accommodated in the first housing; a second connection part having a second housing and a second high-voltage interlock terminal accommodated in the second housing; the second high-voltage interlock terminal is a fork-shaped structure having two receiving portions, two first high-voltage interlock terminals are respectively engaged in each of the two receiving portions, and the second high-voltage interlock terminal of the fork-shaped structure is configured to electrically communicate the two first high-voltage interlock terminals. The second high voltage interlock terminal is a unitary piece or a single piece.
According to an aspect of the present invention, the second high-voltage interlock terminal has a base and a plurality of cantilevers extending from the base, the receiving portion is located between two adjacent cantilevers, each of the plurality of cantilevers has a free end and a fixed end, and the fixed ends of the plurality of cantilevers are connected at the base to be formed as one body.
According to another aspect of the present invention, the plurality of cantilevers includes a middle cantilever and side cantilevers located on opposite sides of the middle cantilever.
According to another aspect of the present invention, the second high voltage interlock terminal further comprises an attachment tab configured to snap in the second housing, the attachment tab protruding from the fixed end of the cantilever.
According to a further aspect of the invention, the attachment tab has a latch protruding from an edge of the attachment tab.
According to a further aspect of the present invention, the second high-voltage interlock terminal is integrally stamped and formed by the conductive plate. In other words, the second high-voltage interlock terminal is plate-shaped.
According to a further aspect of the present invention, a second terminal accommodating chamber is formed in the second housing, the second terminal accommodating chamber having opposite sides, the opposite sides forming a guide rib on a portion corresponding to the receiving portion, the guide rib being provided convexly in the receiving portion from the opposite sides.
According to a further aspect of the present invention, when the first high-voltage interlock terminal is inserted into the receiving portion, the guide rib abuts against the first high-voltage interlock terminal.
According to a further aspect of the invention, the free end of the cantilever is provided with a protruding part protruding towards the receiving cavity.
Adopt and be according to the utility model discloses a high pressure interlocking mechanism only needs a high pressure interlocking terminal in the second connector, and it is integrative, no longer needs the wiring, consequently, high pressure interlocking terminal in the second connector can adopt the high-efficient low-cost ground of stamping process to make, no longer needs subsequent processing step, has saved the manufacturing time and the cost is reduced. In addition, the assembly process of the single-piece high-voltage interlocking terminal is simple and the installation precision is high.
Through the direction muscle that sets up on the internal surface of the portion of accepting at the second casing for high-voltage interlocking terminal, can ensure that the high-voltage interlocking terminal in two connecting portions connects all the time in the course of the work, the problem of instantaneous disconnection can not appear, can satisfy higher vibration requirement, is particularly suitable for and uses in the vehicle.
Drawings
The following detailed description of preferred embodiments of the invention is provided in conjunction with the accompanying drawings, in which:
fig. 1A is a cross-sectional view showing a high-voltage interlock mechanism of a high-voltage connector in the related art.
Fig. 1B is a perspective view showing a female-end interlock terminal used in the high-voltage connector in fig. 1A.
Fig. 2 is a sectional view showing a high-voltage interlock mechanism of a high-voltage connector according to a preferred embodiment of the present invention.
Fig. 3 shows a partial perspective view of an internal terminal interlocking structure according to a preferred embodiment of the present invention.
List of drawings
10 high-voltage interlocking mechanism
20 first connection part
21 first casing
22 first high voltage interlock terminal
30 second connecting part
31 second casing
32 guide rib
33 second high-voltage interlock terminal
34 base part
35 cantilever
36 convex part
37 attachment tab
38 receiving part
39 terminal accommodation cavity
Detailed Description
The present invention will be further described with reference to the following embodiments and drawings, and more details will be set forth in the following description in order to provide a thorough understanding of the present invention, but it is obvious that the present invention can be implemented in various other ways different from those described herein, and those skilled in the art can make similar generalizations and deductions according to the actual application without departing from the spirit of the present invention, and therefore, the scope of the present invention should not be limited by the contents of the embodiments.
Fig. 2 shows a cross-sectional view of a high voltage connector according to a preferred embodiment of the invention, in which in particular the high voltage interlock mechanism 10 is shown. The high voltage interlock mechanism 10 is typically integrated into a high voltage connector to implement a high voltage interlock loop to facilitate improved reliability of the high voltage connector.
As shown in fig. 2, the high-pressure interlock mechanism 10 includes a first connection portion 20 and a second connection portion 30 engaged with each other. Preferably, the first connecting portion 20 is a male end connecting portion and the second connecting portion 30 is a female end connecting portion. The first connection 20 comprises an insulating first housing 21 and the second connection 30 comprises an insulating second housing 31, the first housing 21 being configured, for example, to engage into the second housing 31, which may be locked to each other. The first connection portion 20 is provided with two first high-voltage interlock terminals 22 for the high-voltage interlock mechanism 10, and the second connection portion 30 is provided with a second high-voltage interlock terminal 33. The first high voltage interlock terminal 22 is connected to a cable at a distal end, and when the first and second connection parts 20 and 30 are engaged in place, the second high voltage interlock terminal 33 is connected to the two first high voltage interlock terminals 22 to electrically communicate the two first high voltage interlock terminals 22, and correspondingly, to electrically communicate the two cables to realize a high voltage interlock loop.
The first high voltage interlock terminal 22 shown in fig. 2 is similar to the electrical terminal in the female end connector shown in fig. 1A. The first high-voltage interlock terminal 22 is fixed in the first housing 21 of the first connection portion 20, and the front end portion of the terminal is generally in the shape of an elongated pin for engagement with the second high-voltage interlock terminal 33 of the second connection portion 30, while the rear end portion thereof has a wire connection portion for a cable drawn out of the high-voltage interlock circuit. The structure of the wire connecting portion is conventional, and a crimping construction may be employed.
The second connecting portion 30 includes a second high-voltage interlock terminal 33 therein, and as shown in fig. 2, the second high-voltage interlock terminal 33 has a fork-like structure. Specifically, the second high voltage interlock terminal 33 has a base 34 and three cantilevered arms 35 extending from the base 34, with adjacent cantilevered arms 35 forming two receptacles 38. Two first high-voltage interlock terminals 22 are respectively engaged into each of the two receiving portions 38. The second high-voltage interlock terminal 33 in the second connection portion 30 is a one-piece or unitary terminal structure made of a conductive material, such as a copper sheet or other suitable conductive material, and when the two first high-voltage interlock terminals 22 are engaged with the second high-voltage interlock terminal 33, the one-piece high-voltage interlock terminal makes the two first high-voltage interlock terminals 22 electrically connected to form a loop.
The cantilever 35 of the second high-voltage interlock terminal 33 has a free end and a fixed end, the fixed end being formed integrally with the base 34. The base 34 is also provided with fixing means for fixing the second high-voltage interlock terminal 33 into the second housing 31 at the end opposite to the cantilever 35. In the preferred embodiment, the securing means is an attachment tab 37, the attachment tab 37 having a latch projecting from an edge of the attachment tab 37, as shown in fig. 2, the longitudinal edges of the attachment tab 37 on opposite sides being provided with latches. The second housing 31 of the second connection 30 is correspondingly provided with attachment holes into which the attachment tabs 37 can be held by the snap action of the latch during mounting.
The fixing means for fixing the second high-voltage interlock terminal 33 into the second housing 31 is not limited to the attachment tab 37 provided with the latch, but may employ other forms of snap members such as snap grooves or resiliently flexible claw portions.
Advantageously, the fixing means for fixing the second high-voltage interlock terminal 33 into the second housing 31, together with the base 34 and the cantilever 35, are flat plate members, so that the entire second high-voltage interlock terminal is adapted to be integrally formed in a single process by a stamping process.
As shown in fig. 3, the free end of each cantilever 35 is provided with a projection 36 projecting toward a receiving portion 38, and the projection 36 is facilitated to abut against the first high-voltage interlock terminal 22 to ensure reliability of electrical communication between the high-voltage interlock terminals. Specifically, the three cantilevers 35 are respectively a middle cantilever 35 and two side cantilevers 35 located at opposite sides of the middle cantilever 35, the opposite sides of the free end of the middle cantilever portion have a convex portion 36, and the side cantilevers 35 at both sides have a convex portion 36 with respect to one side of the receiving portion.
Preferably, the middle cantilever 35 is wider from the side cantilever 35, as shown in fig. 2, so that the wider middle cantilever 35 is advantageous to maintain a fixed position, while the narrower side cantilever 35 is advantageous to deflect outward and be able to spring back when the first high voltage interlock terminal 22 is inserted.
Further, as shown in fig. 3, a terminal accommodating chamber 39 is formed in the second housing 31, the accommodating chamber 39 has opposite side surfaces, and the shape of the terminal accommodating chamber 39 corresponds to the second high-voltage interlock terminal 33. A guide rib 32 is formed on a part of the opposite side surfaces of the terminal accommodating chamber 39 corresponding to the receiving portion 38 between the cantilever arms 35, the guide rib 32 is provided to project into the receiving portion 38 from both the opposite side surfaces, and the guide rib 32 extends longitudinally in the direction in which the first high-voltage interlock terminal 22 is inserted. The terminal guide ribs 32 serve as guides when the second high-voltage interlock terminal 33 is inserted into the terminal accommodating chamber 39. When the first high-voltage interlock terminal 22 is inserted into the receiving portion 38, the guiding rib 32 plays a positioning role for the interlock terminals 22 and 33, especially at the free end of the cantilever 35 as shown in fig. 3, the convex portion 36 of the cantilever 35 and the guiding rib 32 define a shape matching with the first high-voltage interlock terminal 22, and the convex portion 36 and the guiding rib 32 are in surface abutment with the first high-voltage interlock terminal 22, so that the relative displacement of the interlock terminals 22 and 33 can be reduced to the maximum extent, the first and second high- voltage interlock terminals 22 and 33 are ensured to be always in contact during the operation, and the problem of instantaneous interruption can not occur.
In a preferred embodiment, the second high voltage interlock terminal 33 can be made by a stamping process. Preferably, the second high-voltage interlock terminal 33 having a fork-like structure is stamped out of a copper plate, and other suitable conductive metal materials are also suitable. The thickness of the copper sheet is preferably in the range of 0.8-1.2 mm. The stamped-out interlock terminals 33 can be mounted into the second housing 31 without further machining. The second high-voltage interlock terminal 33 manufactured by the stamping process is integrated, has high dimensional accuracy, does not need to be subjected to other wiring processing, saves production time and cost, and ensures high position accuracy when the integrated second high-voltage interlock terminal 33 is installed in the second housing 31. Only one terminal is needed in the second connector, reducing the number of terminals compared to the prior art.
The high-voltage interlocking mechanism 1 is integrated in the high-voltage connector, and the specific arrangement and position can be determined according to the requirements of the high-voltage connector. The housing of the high voltage interlock mechanism 1 may be part of the main housing of the high voltage connector or may be attached thereto.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention, all without departing from the content of the technical solution of the present invention, fall within the scope of protection defined by the claims of the present invention.
Claims (10)
1. A high-voltage interlock mechanism for a high-voltage connector, the high-voltage interlock mechanism comprising:
a first connection section having a first housing and two first high voltage interlock terminals housed within the first housing; and
a second connection portion having a second housing and a second high voltage interlock terminal housed within the second housing;
it is characterized in that the preparation method is characterized in that,
the second high-voltage interlock terminal is a fork-shaped structure having two receiving portions, the two first high-voltage interlock terminals being engaged in each of the two receiving portions, respectively, the second high-voltage interlock terminal of the fork-shaped structure being configured to electrically communicate the two first high-voltage interlock terminals.
2. The high voltage interlock mechanism of claim 1 wherein said second high voltage interlock terminal is a unitary piece.
3. The high voltage interlock mechanism of claim 1 wherein said second high voltage interlock terminal has a base portion and a plurality of cantilevered arms extending from said base portion, said receiver portion being positioned between two adjacent cantilevered arms,
each of the plurality of cantilevers has a free end and a fixed end, and the fixed ends of the plurality of cantilevers are integrally connected at the base.
4. The high-voltage interlock mechanism of claim 3 wherein said plurality of cantilevered arms includes a central cantilevered arm and side cantilevered arms on opposite sides of said central cantilevered arm.
5. The high voltage interlock mechanism as claimed in claim 1 or 2, wherein said second high voltage interlock terminal is integrally stamped and formed from a conductive plate.
6. The high voltage interlock mechanism of any one of claims 2-4 wherein the second high voltage interlock terminal includes a securing means for securing the second high voltage interlock terminal into the second housing, the securing means being integrally formed on the second high voltage interlock terminal.
7. The high voltage interlock mechanism of claim 6 wherein the securing means is configured as an attachment tab that snaps into the second housing, the attachment tab protruding from the base of the second high voltage interlock terminal, the attachment tab having a latch protruding from an edge of the attachment tab.
8. The high-voltage interlock mechanism according to claim 3, wherein a second terminal accommodating chamber is formed in said second housing, said second terminal accommodating chamber having opposite side surfaces, said opposite side surfaces forming guide ribs on a portion corresponding to said receiving portion, said guide ribs being provided protrudingly from said opposite side surfaces into said receiving portion.
9. The high voltage interlock mechanism of claim 8 wherein said guide rib abuts said first high voltage interlock terminal when said first high voltage interlock terminal is inserted into said receptacle.
10. The high pressure interlock mechanism of claim 9, wherein said free end of said cantilevered arm is provided with a protrusion that protrudes toward said receiving cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922218954.0U CN211404810U (en) | 2019-12-06 | 2019-12-06 | High-voltage interlocking mechanism for high-voltage connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922218954.0U CN211404810U (en) | 2019-12-06 | 2019-12-06 | High-voltage interlocking mechanism for high-voltage connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211404810U true CN211404810U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922218954.0U Active CN211404810U (en) | 2019-12-06 | 2019-12-06 | High-voltage interlocking mechanism for high-voltage connector |
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| Country | Link |
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| CN (1) | CN211404810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116191130A (en) * | 2023-04-03 | 2023-05-30 | 苏州正北连接技术有限公司 | High-voltage interlocking module with control switch function |
-
2019
- 2019-12-06 CN CN201922218954.0U patent/CN211404810U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116191130A (en) * | 2023-04-03 | 2023-05-30 | 苏州正北连接技术有限公司 | High-voltage interlocking module with control switch function |
| CN116191130B (en) * | 2023-04-03 | 2023-10-31 | 苏州正北连接技术有限公司 | High-voltage interlocking module with control switch function |
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