High voltage connector with micro-motion controlled high voltage interlock

Abstract

The application discloses a micro-motion control high-voltage interlocking high-voltage connector, which comprises a socket shell and a plug shell, high-voltage male terminals and high-voltage female terminals are arranged in the socket shell and the plug shell respectively and can be electrically connected, a high-voltage interlocking system is further arranged, a micro-motion control structure is arranged on the high-voltage interlocking system, the micro-motion control structure can control the high-voltage interlocking system to be powered on or powered off through short-distance motion, and the electrically connected state of the high-voltage male terminals and the high-voltage female terminals can be controlled. The application can solve the problems in the prior art, realizes micro-motion control of high-voltage interlocking, can close and open the high-voltage interlocking system in a very short time, greatly reduces the distance of live plugging, and controls the power-on and power-off of a high-voltage loop in a very short time.

Description

Technical Field

[0001] This invention relates to the field of high-voltage connector technology for new energy vehicles, and in particular to a high-voltage connector with micro-motion control and high-voltage interlock. Background Technology

[0002] With the rapid development of new energy vehicles, the high-voltage connectors used in these vehicles are constantly being upgraded. However, the safety of these high-voltage connectors remains a crucial concern. New energy vehicles all have high-voltage interlock devices in their high-voltage connectors. These interlock devices use a small 12V current to verify the integrity of the entire high-voltage electrical system. All high-voltage components and wiring harness connectors in the vehicle must be properly installed, without short circuits or open circuits. When the controller detects a disconnection or compromise in the HVIL (High Voltage Interlock System) circuit, necessary safety measures must be activated. When the BMS (Battery Management System) detects a disconnection in the high-voltage interlock circuit and determines that the vehicle system is at risk, it will select different necessary safety measures based on the current vehicle conditions.

[0003] When the vehicle is stationary, the high-voltage circuit will only be energized when the high-voltage interlock forms a complete circuit. When the high-voltage interlock circuit is disconnected, the high-voltage circuit will be immediately de-energized. When vehicle maintenance requires plugging or unplugging high-voltage connectors, the high-voltage interlock ensures operator safety: when unplugging a high-voltage connector, the high-voltage interlock circuit must be disconnected first, followed by the high-voltage circuit; when plugging or unplugging a high-voltage connector, the power terminals must make contact and conduction first, followed by the high-voltage interlock circuit. Otherwise, if the power terminals are still energized when plugging or unplugging the high-voltage connector, arcing can easily occur, endangering the operator's safety.

[0004] like Figure 17 , Figure 18 As shown, modern high-voltage interlocking devices use pin terminals 201 and socket terminals 202 to form a high-voltage interlocking circuit. Because both pin terminals 201 and socket terminals 202 have a certain length, operators need to insert or remove the high-voltage connector a certain distance before the interlocking circuit is disconnected or reconnected. However, the high-voltage circuit remains energized during this time, meaning the operator's work involves a period of energized insertion and removal, potentially endangering their safety and posing a safety hazard.

[0005] Therefore, based on years of experience and practice in related industries, the inventor proposes a high-voltage connector with micro-motion control and high-voltage interlock to overcome the shortcomings of the prior art. Summary of the Invention

[0006] The purpose of this invention is to provide a high-voltage connector with micro-motion control of high-voltage interlock, which solves the problems mentioned in the background art, realizes micro-motion control of high-voltage interlock, and can close and open the high-voltage interlock system in a very short time, greatly reducing the distance of hot plugging and unplugging, and controlling the power on and off of the high-voltage circuit in a very short time.

[0007] The objective of this invention is achieved as follows: a high-voltage connector with micro-motion control and high-voltage interlock includes a socket housing and a plug housing. The socket housing and the plug housing are respectively provided with a high-voltage male terminal and a high-voltage female terminal that can be plugged in for electrical connection. The invention also includes a high-voltage interlock system. The high-voltage interlock system is provided with a micro-motion control structure. The micro-motion control structure can control the high-voltage interlock system to be energized or de-energized through short-distance movement, so as to control the electrical connection state of the high-voltage male terminal and the high-voltage female terminal.

[0008] In a preferred embodiment of the present invention, the high-voltage interlocking system includes two high-voltage interlocking terminals disposed within the socket housing, and the micro-motion control structure includes a micro-motion control housing disposed within the socket housing and a high-voltage interlocking top block disposed within the plug housing. A high-voltage interlocking shorting spring is slidably disposed within the micro-motion control housing, and the high-voltage interlocking top block is used to push and push the high-voltage interlocking shorting spring to slide so that it is electrically connected to the high-voltage interlocking terminals.

[0009] In a preferred embodiment of the present invention, a micro-motion control slider is slidably disposed within the micro-motion control housing. The side of the micro-motion control slider away from the high-voltage interlocking top block is connected to the high-voltage interlocking shorting spring. The side of the high-voltage interlocking shorting spring away from the high-voltage interlocking top block abuts against a return spring. The high-voltage interlocking top block is used to push the micro-motion control slider and the high-voltage interlocking shorting spring to slide towards the high-voltage interlocking terminal. The return spring is used to push the micro-motion control slider to slide away from the high-voltage interlocking terminal.

[0010] In a preferred embodiment of the present invention, the micro-motion control housing is open on the side near the high-voltage interlock terminal, and a guide post through hole is provided on the side wall of the micro-motion control housing away from the high-voltage interlock terminal. A guide post is provided on the micro-motion control slider, and the guide post can slide through the guide post through hole; the high-voltage interlock top block can abut against the guide post to push the micro-motion control slider.

[0011] In a preferred embodiment of the present invention, the high-voltage interlocking shorting spring is bent in an arc shape, the high-voltage interlocking shorting spring forming a first receiving groove, the two sides of the first receiving groove forming a second receiving groove, the return spring being disposed in the first receiving groove, and the micro-motion control slider including a slider body, the slider body being provided with two spring connecting plates, the two spring connecting plates being respectively engaged in the second receiving groove.

[0012] In a preferred embodiment of the present invention, connecting pressure plates are respectively provided on the two side walls of the first accommodating curved groove, and pressure plate slots are respectively provided on the two spring connecting plates, and each connecting pressure plate can be respectively engaged in the pressure plate slot.

[0013] In a preferred embodiment of the present invention, the two ends of the high-voltage interlocking short-circuit spring are respectively provided with spring insert portions, and the slider body is provided with spring insert grooves, and each of the spring insert portions can be inserted into the spring insert grooves respectively.

[0014] In a preferred embodiment of the present invention, a positioning block is provided inside the socket housing, a positioning slot is provided on the positioning block, and a positioning protrusion is provided on the micro-motion control housing, the positioning protrusion being able to be engaged in the positioning slot.

[0015] In a preferred embodiment of the present invention, the high-voltage interlocking top block is disposed on a top block frame, and the top block frame is detachably snapped into the plug housing; one end of the high-voltage interlocking top block is provided with a top abutment hole, and the top abutment hole can abut against the guide post to push it to slide.

[0016] In a preferred embodiment of the present invention, the high-voltage interlock terminal is inserted into the socket housing from the end away from the plug housing, and the high-voltage interlock terminal is locked and fixed in the socket housing by a secondary self-locking structure.

[0017] In a preferred embodiment of the present invention, the micro-motion control structure includes a micro switch disposed in the socket housing and a high-voltage interlocking top block disposed in the plug housing. The micro switch includes a switch housing and a switch button. The first end of the switch button protrudes from the switch housing, and the second end of the switch button can be electrically connected to two transition signal lines. The two transition signal lines are electrically connected to the high-voltage interlocking system. The high-voltage interlocking top block can push the switch button to energize the high-voltage interlocking system.

[0018] In a preferred embodiment of the present invention, a switch through hole is provided on the socket housing, and a positioning claw is provided on the side of the switch through hole away from the plug housing. The switch housing is inserted into the switch through hole and fixed by the positioning claw.

[0019] As described above, the high-voltage connector with micro-motion control and high-voltage interlock provided by the present invention has the following beneficial effects:

[0020] The high-voltage connector of the micro-motion control high-voltage interlock of the present invention is equipped with a micro-motion control structure, which can realize micro-motion control of the high-voltage interlock, complete the closing and opening of the high-voltage interlock system in a very short time, significantly reduce the refitting time and mating distance, reduce the distance of hot-plugging, realize micro-motion control, reduce safety hazards, and at the same time ensure the stability of the high-voltage interlock system connection. The present invention effectively solves the problem of hot-plugging of high-voltage connectors during the insertion and removal process, reduces the safety hazards present when inserting and removing high-voltage connectors, and ensures the personal safety of operators. Attached Figure Description

[0021] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

[0022] Figure 1 : A schematic diagram of the high-voltage connector of the micro-motion control high-voltage interlock of the present invention when the high-voltage interlock system is in the on state.

[0023] Figure 2 When the micro-motion control structure of the present invention uses a micro-motion control slider... Figure 1 Sectional view of AA.

[0024] Figure 3 :for Figure 2 Enlarged view of section I in the middle.

[0025] Figure 4 : A schematic diagram of the high-voltage connector of the micro-motion control high-voltage interlock of the present invention when the high-voltage interlock system is in the disconnected state.

[0026] Figure 5 When the micro-motion control structure of the present invention uses a micro-motion control slider... Figure 4 BB section view.

[0027] Figure 6 :for Figure 5 Enlarged view of section II in the middle.

[0028] Figure 7 : This is a schematic diagram of the assembly of the micro-motion control structure of the present invention.

[0029] Figure 8 : This is an exploded view of the micro-motion control structure of the present invention.

[0030] Figure 9 : This is a schematic diagram of the high-voltage interlock top block of the present invention.

[0031] Figure 10 : This is a schematic diagram of the high-voltage interlock terminal of the present invention.

[0032] Figure 11 : This is an exploded view of the socket housing structure assembly of the present invention.

[0033] Figure 12 This is a schematic diagram of the socket housing structure after assembly according to the present invention.

[0034] Figure 13 : This is an exploded view of the plug housing structure assembly of the present invention.

[0035] Figure 14 This is a schematic diagram of the assembled plug housing structure of the present invention.

[0036] Figure 15 This is a schematic diagram of the high-voltage connector of the micro-motion control high-voltage interlock of the present invention when it is disconnected.

[0037] Figure 16 This is a schematic diagram of the high-voltage connector of the micro-motion control high-voltage interlock during insertion.

[0038] Figure 17 This is a schematic diagram of the high-voltage connector in the prior art when it is disconnected.

[0039] Figure 18 This is a schematic diagram of the high-voltage connector during mating in existing technology.

[0040] Figure 19 : This is a schematic diagram of a positioning protrusion provided on the micro-motion control housing of the present invention.

[0041] Figure 20 : This is a schematic diagram of the socket housing of the present invention with a positioning block installed inside.

[0042] Figure 21 This is a schematic diagram illustrating the process of installing a micro switch onto the socket housing.

[0043] Figure 22 : A schematic diagram of the rear end of the socket housing after the micro switch is installed.

[0044] Figure 23 : This is a schematic diagram of the front end of the socket housing after the micro switch is installed.

[0045] Figure 24 When a micro switch is used in the micro-motion control structure of this invention Figure 1 Sectional view of AA.

[0046] Figure 25 When a micro switch is used in the micro-motion control structure of this invention Figure 4 BB section view.

[0047] In the picture:

[0048] 100. High-voltage connector with micro-motion control and high-voltage interlock;

[0049] 1. Socket housing;

[0050] 11. Connecting post; 12. Positioning block; 13. Positioning slot; 14. Positioning claw;

[0051] 2. Secondary self-locking structure;

[0052] 3. High-voltage interlock terminal; 31. Transition signal line;

[0053] 4. Micro-motion control structure;

[0054] 41. Return spring;

[0055] 42. High-voltage interlocking short-circuit spring; 421. First receiving groove; 422. Second receiving groove; 423. Connecting pressure plate; 424. Spring insert part;

[0056] 43. Micro-motion control slider; 431. Guide post; 432. Slider body; 433. Spring connecting plate; 434. Pressure plate slot; 435. Spring insertion slot;

[0057] 44. Micro-motion control housing; 441. Guide post through hole; 442. Positioning protrusion;

[0058] 45. Micro switch; 451. Switch housing; 452. Switch button;

[0059] 5. High-voltage male terminal;

[0060] 6. Plug housing;

[0061] 7. Rocker arm;

[0062] 8. High-voltage interlocking top block; 81. Top block frame; 82. Top abutment hole;

[0063] 9. High-voltage bus terminals;

[0064] 201. Pin terminal; 202. Socket terminal. Detailed Implementation

[0065] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0066] The specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, all of which should be considered within the scope of the invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "linked" should be interpreted broadly; for example, they can refer to mechanical or electrical connections, or internal communication between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0068] like Figures 1 to 14 , Figures 19 to 25 As shown, the present invention provides a high-voltage connector 100 with micro-motion control and high-voltage interlock, including a socket housing 1 and a plug housing 6. The socket housing 1 and the plug housing 6 are respectively provided with a high-voltage male terminal 5 and a high-voltage female terminal 9 (e.g., ...) capable of being plugged into and electrically connected. Figure 12 , Figure 14 As shown), it also includes a high-voltage interlock system, which controls the electrical connection state of the high-voltage male terminal 5 and the high-voltage female terminal 9. After the high-voltage male terminal 5 and the high-voltage female terminal 9 are inserted towards each other, they continue to move a first distance before the high-voltage interlock system is energized. After the high-voltage interlock system is energized, the high-voltage male terminal 5 and the high-voltage female terminal 9 are energized. After the high-voltage male terminal 5 and the high-voltage female terminal 9 move a first distance away from each other, the high-voltage interlock system is de-energized, and the high-voltage male terminal 5 and the high-voltage female terminal 9 are de-energized. After the high-voltage male terminal 5 and the high-voltage female terminal 9 continue to move a second distance away from each other, they separate.

[0069] The high-voltage interlock system is equipped with a micro-motion control structure 4. The micro-motion control structure 4 can control the high-voltage interlock system to be powered on or off by a short-distance action (compared to the insertion and removal distance of the existing pin-and-socket type high-voltage interlock device, the on / off control distance of the micro-motion control structure is much shorter, and short distance is used to describe it here). This controls the electrical connection state between the high-voltage male terminal 5 and the high-voltage female terminal 9.

[0070] like Figure 15 , Figure 16 As shown, when the operator pulls out the high-voltage connector and immediately begins pulling (the micro-motion control structure can disconnect it in a very short distance and time), the high-voltage interlock system immediately disconnects, and the high-voltage circuit is immediately de-energized (both the high-voltage male and female terminals are de-energized). When the operator inserts the connector, the high-voltage interlock system only reconnects the moment the high-voltage male and female terminals are fully inserted, and the high-voltage circuit is energized (both the high-voltage male and female terminals are energized). This effectively solves the problem of energized insertion and removal of high-voltage connectors, reduces safety hazards during insertion and removal, and ensures the personal safety of the operator.

[0071] Existing high-voltage interlock devices are all pin-and-socket type. During the high-voltage connector mating process, the high-voltage interlock terminal refitting time is long and the mating distance is long, resulting in a long distance for energized plugging and unplugging of the high-voltage connector. The micro-motion control high-voltage interlock of this invention sets a micro-motion control structure in the high-voltage connector, which can realize micro-motion control of the high-voltage interlock. It can complete the closing and opening of the high-voltage interlock system in a very short time, greatly reducing the refitting time and mating distance, reducing the distance for energized plugging and unplugging, realizing micro-motion control, reducing safety hazards, and ensuring the stability of the high-voltage interlock system connection.

[0072] Furthermore, such as Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the high-voltage interlock system includes two high-voltage interlock terminals 3 disposed in the socket housing. The micro-motion control structure 4 includes a micro-motion control housing 44 disposed in the socket housing 1 and a high-voltage interlock top block 8 disposed in the plug housing 6. A high-voltage interlock shorting spring 42 is slidably disposed in the micro-motion control housing 44. The high-voltage interlock top block 8 is used to push and push the high-voltage interlock shorting spring 42 to slide so that it is electrically connected to the high-voltage interlock terminals 3.

[0073] Furthermore, such as Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, a micro-motion control slider 43 is slidably disposed inside the micro-motion control housing 44. A high-voltage interlocking short-circuit spring 42 is connected to the side of the micro-motion control slider 43 away from the high-voltage interlocking top block 8. A return spring 41 is abutted on the side of the high-voltage interlocking short-circuit spring 42 away from the high-voltage interlocking top block. The high-voltage interlocking top block 8 is used to push the micro-motion control slider 43 and the high-voltage interlocking short-circuit spring 42 to slide towards the high-voltage interlocking terminal 3. The return spring 41 is used to push the micro-motion control slider 43 to slide away from the high-voltage interlocking terminal 3.

[0074] Furthermore, such as Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the micro-motion control housing 44 is open on the side near the high-voltage interlock terminal. A guide post through hole 441 is provided on the side wall of the micro-motion control housing 44 away from the high-voltage interlock terminal 3. A guide post 431 is provided on the micro-motion control slider 43. The guide post 431 can slide through the guide post through hole 441. The high-voltage interlock top block 8 can abut against the guide post 431 to push the micro-motion control slider 43.

[0075] Furthermore, such as Figure 8 As shown, the high-voltage interlocking short-circuit spring 42 is bent in an arc shape. The bending of the high-voltage interlocking short-circuit spring 42 forms a first receiving groove 421. The two sides of the first receiving groove 421 respectively form a second receiving groove 422. The return spring 41 is disposed in the first receiving groove 421. The micro-motion control slider 43 includes a slider body 432. Two spring connecting plates 433 are disposed on the slider body 432. The two spring connecting plates 433 can be respectively locked in the second receiving groove 422.

[0076] like Figure 19 , Figure 20 As shown, in this embodiment, a positioning block 12 is provided inside the socket housing 1, and a positioning slot 13 is provided on the positioning block 12. A positioning protrusion 442 is provided on the micro-motion control housing 44, and the positioning protrusion can be engaged in the positioning slot 13. In this embodiment, there are four positioning protrusions 442 and four positioning slots 13.

[0077] Furthermore, such as Figure 8 As shown, connecting pressure plates 423 are respectively provided on the two side walls of the first receiving groove 421, and pressure plate slots 434 are respectively provided on the two spring connecting plates 433, and each connecting pressure plate 423 can be respectively engaged in each pressure plate slot 434.

[0078] Furthermore, such as Figure 8As shown, the two ends of the high-voltage interlocking short-circuit spring 42 are respectively provided with spring insert parts 424, and the slider body 432 is provided with spring insert grooves 435, and each spring insert part 424 can be inserted into the spring insert groove 435 respectively.

[0079] Furthermore, such as Figure 9 As shown, the high-voltage interlocking top block 8 is mounted on a top block frame 81, and the top block frame 81 is detachably snapped into the plug housing 6; one end of the high-voltage interlocking top block 8 is provided with a top abutment hole 82, which can abut against the guide post 431 to push it to slide.

[0080] Furthermore, such as Figure 10 , Figure 11 As shown, the high-voltage interlock terminal 3 is inserted into the socket housing 1 from the end furthest from the plug housing (i.e., the tail end of the socket housing). The high-voltage interlock terminal 3 is locked and fixed in the socket housing 1 by the secondary self-locking structure 2 (TPA clip, TPA stands for Terminal Position Assurance, which locks the terminal and enhances the holding force of the terminal in the connector. TPA is a secondary protection and limiting mechanism for the terminal in the connector, also known as a secondary self-locking structure. It is used in harsh environments or where greater pull-out force is required). Inserting the TPA locks the high-voltage interlock terminal. After the high-voltage interlock terminal and the TPA cooperate, the movement of the high-voltage interlock terminal is effectively restricted, providing an anti-reverse function and ensuring the connection stability of the high-voltage interlock.

[0081] In another specific embodiment of the present invention, the micro-motion control housing 44, micro-motion control slider 43, high-voltage interlocking short-circuit spring 42, and return spring 41 in the aforementioned micro-motion control structure can be replaced with a micro-switch, and the micro-switch can be a micro-switch in the prior art.

[0082] Furthermore, such as Figures 21 to 25 As shown, the micro-control structure 4 includes a micro switch 45 disposed within the socket housing 1 and a high-voltage interlocking top block 8 disposed within the plug housing 6. The micro switch 45 includes a switch housing 451 and a switch button 452. The first end of the switch button 452 protrudes from the switch housing 451, and the second end of the switch button 452 can be electrically connected to two transition signal lines 31, which are electrically connected to the high-voltage interlocking system. The high-voltage interlocking top block 8 can push and abut against the switch button 452 to energize the high-voltage interlocking system. Further, as... Figure 21 , Figure 22As shown, a switch through hole is provided on the socket housing 1. The shape of the switch through hole matches the outer shape of the switch housing 451. A positioning claw 14 is provided on the side of the switch through hole away from the plug housing 6 (rear end). The switch housing 451 passes through the switch through hole and is fixed by the positioning claw 14. In this embodiment, the cross-section of the switch housing 451 is rectangular, and there are four positioning claws 14, which respectively abut against the four sides of the switch housing 451.

[0083] like Figure 21 , Figure 22 , Figure 23 As shown, during installation, the second end of the switch button 452 is connected to two transition signal lines 31, and the micro switch 45 is inserted from the rear end of the socket housing 1 (the side away from the plug housing 6). The positioning claw 14 will lock the switch housing 451 of the micro switch 45 to prevent the micro switch 45 from moving backward, thus playing an anti-retraction role; the socket housing 1 restricts the forward movement of the micro switch 45. During the insertion process, the high-voltage interlocking top block 8 pushes the switch button 452. When the high-voltage connector is about to be fully mated, the micro switch 45 is turned on, the high-voltage interlocking system is turned on, the high-voltage circuit (high-voltage male terminal 5 and high-voltage female terminal 9 are electrically connected) is energized, and the high-voltage connector insertion is completed, as shown. Figure 24 As shown; when the high-voltage connector is pulled out, the high-voltage interlock top block 8 separates from the micro switch 45, the high-voltage interlock system is disconnected, and the high-voltage circuit (high-voltage male terminal 5 and high-voltage female terminal 9 are electrically connected) is de-energized, as shown. Figure 25 As shown.

[0084] Furthermore, such as Figure 1 , Figure 4 , Figure 11 , Figure 12 , Figure 13 , Figure 14 As shown, a rocker arm 7 is provided on the side wall of the plug housing 6, and a connecting groove is provided on the rocker arm 7. A connecting post 11 is provided on the side wall of the socket housing 1, and the connecting groove can be slidably fitted onto the connecting post 11.

[0085] The high-voltage connector 100 with micro-motion control high-voltage interlock of the present invention is used as follows:

[0086] During mating, the high-voltage female terminal 9 moves forward with the plug housing 6, contacts the high-voltage male terminal 5 inside the socket housing 1, and continues to move forward. At this time, the high-voltage interlocking top block 8 inside the plug housing 6 has not yet contacted the micro-motion control slider 43 (guide post 431) inside the socket housing 1, the high-voltage interlocking system is not connected, and the high-voltage male terminal 5 and the high-voltage female terminal 9 are de-energized. When the rocker arm 7 is about to be fully mated, the high-voltage interlocking top block 8 contacts the guide post 431 of the micro-motion control slider 43, and the high-voltage interlocking top block 8 pushes the micro-motion control slider 43 to slide until the high-voltage interlocking short-circuit spring 42 is in complete and tight contact with the high-voltage interlocking terminal 3. At this time, the return spring is compressed, the high-voltage interlocking system is connected, the high-voltage circuit (high-voltage male terminal 5 and high-voltage female terminal 9 are electrically connected) is energized, and the high-voltage connector mating is completed. Figure 1 , Figure 2 , Figure 3 As shown. From the moment the high-voltage interlocking shorting spring 42 contacts the high-voltage interlocking terminal 3 to complete the high-voltage connector insertion, the relative movement distance between the high-voltage male terminal 5 and the high-voltage female terminal 9 is very short, which greatly shortens the energized insertion distance and reduces safety hazards.

[0087] When the plug is unplugged, the rocker arm 7 lifts upward, the plug housing 6 begins to move backward, and the high-voltage interlocking top block 8 inside the plug housing 6 also begins to move backward. At this time, the return spring 41 pushes the micro-motion control slider 43 backward until the high-voltage interlocking short-circuit spring 42 is completely separated from the high-voltage interlocking terminal 3. At this time, the high-voltage circuit (the high-voltage male terminal 5 and the high-voltage female terminal 9 are disconnected) is de-energized. At this time, the plug housing 6 and the internal high-voltage female terminal 9 have only moved a very short distance, such as... Figure 4 , Figure 5 , Figure 6 As shown, as the plug housing 6 continues to move backward, the high-voltage male terminal 5 and the high-voltage female terminal 9 completely separate. This significantly shortens the live pull-out distance of the high-voltage connector during removal, reducing safety hazards.

[0088] As described above, the high-voltage connector with micro-motion control and high-voltage interlock provided by the present invention has the following beneficial effects:

[0089] The high-voltage connector of the micro-motion control high-voltage interlock of the present invention is equipped with a micro-motion control structure, which can realize micro-motion control of the high-voltage interlock, complete the closing and opening of the high-voltage interlock system in a very short time, significantly reduce the refitting time and mating distance, reduce the distance of hot-plugging, realize micro-motion control, reduce safety hazards, and at the same time ensure the stability of the high-voltage interlock system connection. The present invention effectively solves the problem of hot-plugging of high-voltage connectors during the insertion and removal process, reduces the safety hazards present when inserting and removing high-voltage connectors, and ensures the personal safety of operators.

[0090] The above description is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention.

Claims

1. A high-voltage connector with micro-motion control high-voltage interlock, comprising a socket housing and a plug housing, high-voltage male terminals and high-voltage female terminals capable of being electrically connected are respectively arranged in the socket housing and the plug housing, characterized in that, It also includes a high-voltage interlock system, which is equipped with a micro-motion control structure. The micro-motion control structure can control the high-voltage interlock system to be energized or de-energized through short-distance movement, so as to control the electrical connection state of the high-voltage male terminal and the high-voltage female terminal. The high-voltage interlock system is used to control the electrical connection state of the high-voltage male terminal and the high-voltage female terminal. After the high-voltage male terminal and the high-voltage female terminal are inserted towards each other, they continue to move a first distance, and then the high-voltage interlock system is energized. After the high-voltage interlock system is energized, the high-voltage male terminal and the high-voltage female terminal are energized. After the high-voltage male terminal and the high-voltage female terminal move a first distance away from each other, the high-voltage interlock system is de-energized, and the high-voltage male terminal and the high-voltage female terminal are de-energized. After the high-voltage male terminal and the high-voltage female terminal continue to move a second distance away from each other, they separate. The high-voltage interlock system includes two high-voltage interlock terminals disposed within the socket housing. The micro-motion control structure includes a micro-motion control housing disposed within the socket housing and a high-voltage interlock top block disposed within the plug housing. A high-voltage interlock shorting spring is slidably disposed within the micro-motion control housing. The high-voltage interlock top block is used to push and push the high-voltage interlock shorting spring to slide so that it is electrically connected to the high-voltage interlock terminals. A micro-motion control slider is slidably disposed inside the micro-motion control housing. The side of the micro-motion control slider away from the high-voltage interlock top block is connected to the high-voltage interlock shorting spring. The side of the high-voltage interlock shorting spring away from the high-voltage interlock top block is abutted against a return spring. The high-voltage interlock top block is used to push the micro-motion control slider and the high-voltage interlock shorting spring to slide towards the high-voltage interlock terminal. The return spring is used to push the micro-motion control slider to slide away from the high-voltage interlock terminal. Alternatively, the micro-motion control structure includes a micro switch disposed in the socket housing and a high-voltage interlocking top block disposed in the plug housing. The micro switch includes a switch housing and a switch button. The first end of the switch button protrudes from the switch housing, and the second end of the switch button can be electrically connected to two transition signal lines. The two transition signal lines are electrically connected to the high-voltage interlocking system. The high-voltage interlocking top block can push the switch button to energize the high-voltage interlocking system.

2. The micro-motion controlled high voltage interlocked high voltage connector of claim 1, wherein, The micro-motion control housing is open on the side near the high-voltage interlock terminal. A guide post through hole is provided on the side wall of the micro-motion control housing away from the high-voltage interlock terminal. A guide post is provided on the micro-motion control slider. The guide post can slide through the guide post through hole. The high-voltage interlock top block can abut against the guide post to push the micro-motion control slider.

3. The micro-motion controlled high voltage interlocked high voltage connector of claim 1, wherein, The high-voltage interlocking shorting spring is bent in an arc shape, forming a first receiving groove. The two sides of the first receiving groove form a second receiving groove. The return spring is disposed in the first receiving groove. The micro-motion control slider includes a slider body, on which two spring connecting plates are disposed. The two spring connecting plates can be respectively engaged in the second receiving groove.

4. The micro-motion controlled high voltage interlocked high voltage connector of claim 3, wherein, Connecting pressure plates are respectively provided on the two side walls of the first accommodating curved groove, and pressure plate slots are respectively provided on the two spring connecting plates, and each connecting pressure plate can be respectively engaged in the pressure plate slot.

5. The micro-motion controlled high voltage interlocked high voltage connector of claim 3, wherein, The two ends of the high-voltage interlocking short-circuit spring are respectively provided with spring insert parts, and the slider body is provided with spring insert grooves, and each spring insert part can be inserted into the spring insert groove.

6. The micro-motion controlled high voltage interlocked high voltage connector of claim 3, wherein, The socket housing is provided with a positioning block, the positioning block is provided with a positioning slot, and the micro-motion control housing is provided with a positioning protrusion, which can be engaged in the positioning slot.

7. The micro-motion controlled high voltage interlocked high voltage connector of claim 2, wherein, The high-voltage interlocking top block is mounted on a top block frame, which is detachably snapped into the plug housing; one end of the high-voltage interlocking top block is provided with a top abutment hole, which can abut against the guide post to push it to slide.

8. The high-voltage connector with micro-motion control and high-voltage interlock as described in claim 2, characterized in that, The high-voltage interlock terminal is inserted into the socket housing from the end away from the plug housing, and the high-voltage interlock terminal is locked and fixed in the socket housing by a secondary self-locking structure.

9. The micro-motion controlled high voltage interlocked high voltage connector of claim 1, wherein, The socket housing is provided with a switch through hole, and a positioning claw is provided on the side of the switch through hole away from the plug housing. The switch housing is inserted into the switch through hole and fixed by the positioning claw.

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