High voltage connection switch and vehicle including same

Abstract

The vehicle includes a high-voltage connection switch including a fixed contact, a movable contact assembly, and a drive mechanism. The drive mechanism is configured to move the movable contact assembly relative to the fixed contact, and the drive mechanism is provided with a self-locking assembly that locks to maintain a state between the movable contact assembly and the fixed contact after the drive mechanism brings the movable contact assembly into contact with or separates it from the fixed contact.

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This disclosure claims priority to Chinese Patent Application No. 202320240703.6, entitled "HIGH-VOLTAGE CONNECTION SWITCH," filed with the State Intellectual Property Office on January 31, 2023, which is incorporated herein by reference in its entirety.

[0002] The present application relates to the field of new energy vehicle technology, and in particular to a high voltage connection switch and a vehicle including a high voltage connection switch. [Background technology]

[0003] In the prior art, some mainstream relay switches are turned on or off by using electromagnetic force and require a continuous power supply to remain in a closed or open state, but such switches cannot maintain their current open or closed state after an unexpected power outage. Summary of the Invention

[0004] The present application is intended to solve at least one of the technical problems existing in the prior art. Based on this, the present application provides a high-voltage connection switch. A drive mechanism brings a movable contact assembly into contact with or separates a fixed contact, thereby turning the high-voltage connection switch on or off. In addition, a self-locking assembly may be used to maintain the contact or separation state, thereby reducing energy consumption and noise.

[0005] A high-voltage connection switch according to one embodiment of the first aspect of the present application includes a fixed contact, a movable contact assembly, and a drive mechanism configured to move the movable contact assembly relative to the fixed contact, the drive mechanism including a self-locking assembly that locks to maintain a state between the movable contact assembly and the fixed contact after the drive mechanism brings the movable contact assembly into contact with or separates from the fixed contact.

[0006] According to the high-voltage connection switch of this embodiment of the present application, the drive mechanism moves the movable contact assembly relative to the fixed contact to abut against or separate from the fixed contact, thereby turning the fixed voltage connection switch on or off. In addition, the drive mechanism is provided with a self-locking assembly, and the drive mechanism is locked by the self-locking assembly so that the movable contact assembly and the fixed contact can remain in abutting or separating state. When the power supply to the drive mechanism is cut off, the high-voltage connection switch can remain in an open or closed state, and the high-voltage connection switch will not malfunction due to a power outage, which can effectively reduce electrical energy consumption, ensure the safety of external electrical appliances, and further improve the cruising range of new energy vehicles. Furthermore, in the high-voltage connection switch, the drive mechanism brings the movable contact assembly into contact with the fixed contact, which effectively avoids high-velocity impact and reduces noise generation. In addition, the soft contact action reduces damage to the fixed contact and the movable contact assembly, so that a longer operating life and a better contact interface can be achieved.

[0007] According to some embodiments of the present application, the drive mechanism includes a drive member, a self-locking assembly, and a transmission rod, wherein the self-locking assembly is in transmission connection with the drive member, the transmission rod is in transmission connection with the self-locking assembly, and is driven by the drive member, and the transmission rod pushes the movable contact assembly to move it relative to the fixed contact.

[0008] According to some embodiments of the present application, the self-locking assembly includes a worm gear and a worm, the worm is in transmission connection with the worm gear, the worm is in transmission connection with a transmission rod, the worm gear can actively rotate the worm, and the worm cannot actively rotate the worm gear, and when the drive mechanism stops driving, the worm prevents the worm gear from rotating, thereby stopping the transmission between the drive member and the transmission rod.

[0009] According to some embodiments of the present application, the fixed contacts include a first fixed contact and a second fixed contact. The movable contact assembly includes a first movable contact assembly and a second movable contact assembly, where the first movable contact assembly is configured to contact the first fixed contact and the second movable contact assembly is configured to contact the second fixed contact, and the first movable contact assembly and the second movable contact assembly move in unison such that the second movable contact assembly is separated from the second fixed contact when the first movable contact assembly is in contact with the first fixed contact, or the first movable contact assembly is separated from the first fixed contact when the second movable contact assembly is in contact with the second fixed contact.

[0010] The high-voltage connection switch in this application can mutually exclusive turn on / off the circuit in which the first movable contact and the first fixed contact are arranged and the circuit in which the second movable contact and the second fixed contact are arranged. Based on the existing relay, the integration of mutually exclusive circuit states is implemented, and the turn on or turn off of at least two mutually exclusive circuits can be implemented by using a single control signal, which effectively simplifies the control circuit, improves the reliability of the control system, reduces the risk of failure, and reduces costs. As a result, the high-voltage connection switch has a high level of integration.

[0011] According to some embodiments of the present application, the high voltage connection switch further includes a press plate, the press plate being in driving connection with a drive mechanism, the drive mechanism being configured to move the press plate to press the movable contact assembly toward and into contact with the fixed contact.

[0012] According to some embodiments of the present application, the high-voltage connection switch further includes a press plate, the press plate being in transmission connection with a drive mechanism, a first movable contact assembly being disposed on one side of the press plate facing a first direction, and a second movable contact assembly being disposed on one side of the press plate facing a second direction, the first direction being different from the second direction, the drive mechanism being configured to move the press plate in the first direction to push the first movable contact assembly to move in the first direction and contact the first fixed contact, and the drive mechanism being configured to move the press plate in the second direction to push the second movable contact assembly to move in the second direction and contact the second fixed contact.

[0013] According to some embodiments of the present application, the first movable contact assembly includes a first movable connecting conductor and a first movable contact, a first end of the first movable contact being adjacent to one side of the press plate and a second end passing through the first movable connecting conductor, the first movable connecting conductor being configured to connect to a first external component; and / or the second movable contact assembly includes a second movable connecting conductor and a second movable contact, a first end of the second movable contact being adjacent to one side of the press plate and a second end passing through the second movable connecting conductor, the second movable connecting conductor being configured to connect to a second external component.

[0014] According to some embodiments of the present application, the first movable contact assembly further includes a first elastic member, which is sheathed around the first movable contact and sandwiched between the press plate and the first movable connecting conductor, and / or the second movable contact assembly further includes a second elastic member, which is sheathed around the second movable contact and sandwiched between the press plate and the second movable connecting conductor.

[0015] In the high-voltage connection switch of the present application, the first movable contact assembly and the second movable contact assembly are provided with first and second elastic members, respectively, so that the first and second elastic members provide a uniform mechanical force that can ensure soft and stable contact. Operation occurs after a power outage so that contact can be maintained even when the high-voltage connection switch in the closed state is exposed to vibration, which avoids failures caused by vibration and achieves a simple and safe structure.

[0016] According to some embodiments of the present application, there are a plurality of first fixed contacts and a plurality of first movable contact assemblies arranged in one-to-one correspondence, and there are a plurality of second fixed contacts and a plurality of second movable contact assemblies arranged in one-to-one correspondence.

[0017] According to the high-voltage connection switch of the present application, on the one hand, the turning on or turning off of multiple circuits can be implemented, and the multiple circuits do not need to have the same load, which can implement the integration of various loads and replace multiple relays for operation, thereby effectively reducing costs, weight, and installation space. On the other hand, based on existing relays, the integration of mutually exclusive circuit states is realized, and the turning on or turning off of at least two mutually exclusive circuits can be implemented by using a single control signal, which effectively simplifies the control circuit, improves the reliability of the control system, reduces the risk of failure, and reduces costs. As a result, the high-voltage connection switch has a high level of integration.

[0018] According to some embodiments of the present application, a mounting base is further included, and the drive mechanism, the fixed contact, and the press plate are all disposed on the mounting base.

[0019] According to some embodiments of the present application, a guide assembly is further included, the guide assembly being disposed on the mounting base, the guide assembly being in guiding cooperation with the press plate such that the press plate moves in one direction along the guide assembly.

[0020] According to the high-voltage connection switch in the present application, the guide assembly is arranged on the mounting base so that the press plate moves in one direction along the guide assembly, thereby ensuring the movement stability and positional accuracy of the press plate and improving the service life of the press plate.

[0021] According to some embodiments of the present application, the guide assembly includes a guide post and a guide sleeve, the guide post being disposed on the mounting base, the guide sleeve being disposed on an end of the guide post, and the press plate being able to pass through the guide post and move in one direction along the guide post.

[0022] According to some embodiments of the present application, the press plate further includes a first limit assembly and a second limit assembly, the first limit assembly and the second limit assembly being disposed on the mounting base, the press plate being disposed between the first limit assembly and the second limit assembly so as to move in a restricted manner between the first limit assembly and the second limit assembly, and the first limit assembly and the second limit assembly being externally connectable to a signal circuit for identifying or determining a contact state or a separation state between the movable contact assembly and the fixed contact.

[0023] According to the high-voltage connection switch in the present application, adjustable first and second limiting assemblies are arranged on two sides of the mounting base so that the press plate moves in a limited manner between the first and second limiting assemblies, and the positions of the first and second limiting assemblies are adjustable and can be adjusted according to actual product tolerances to achieve accurate placement and limitation.

[0024] A vehicle according to an embodiment of the second aspect of the present application includes a high voltage connection switch according to any embodiment of the first aspect of the present application.

[0025] Additional aspects and advantages of the present application will be set forth in part in the description that follows, and in part will be obvious from the description, or may be learned by practice of the present application.

[0026] The foregoing and / or further aspects and advantages of the present application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the following drawings. [Brief explanation of the drawings]

[0027] [Figure 1] 1 is a schematic diagram of a structure of a high-voltage connection switch according to an embodiment of the present application; [Figure 2] 1 is a schematic diagram of a partial structure of a high-voltage connection switch according to an embodiment of the present application; [Figure 3] FIG. 3 is an enlarged view of a portion A in FIG. [Figure 4] FIG. 10 is a schematic diagram of a structure in which the second movable contact is separated from the second fixed contact according to an embodiment of the present application. [Figure 5] FIG. 10 is a schematic diagram of a structure in which a second movable contact is in contact with a second fixed contact according to an embodiment of the present application. [Figure 6] 1 is a schematic diagram of a structure of a self-locking assembly according to an embodiment of the present application. [Figure 7] FIG. 2 is a schematic diagram of a structure of a driving member and a reduction gearbox according to an embodiment of the present application. [Figure 8] 1 is a block diagram of a vehicle according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0028] DETAILED DESCRIPTION OF THE INVENTION The embodiments of the present application are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary.

[0029] A high voltage connection switch 100 according to an embodiment of the first aspect of the present application will now be described with reference to Figures 1 to 7 .

[0030] As shown in FIGS. 1 to 3, the high voltage connection switch 100 includes a fixed contact 110, a movable contact assembly 120, and a drive mechanism 3.

[0031] The drive mechanism 3 is configured to move the movable contact assembly 120 relative to the fixed contact 110. When the drive mechanism 3 moves the movable contact assembly 120 relative to the fixed contact 110 and brings it into contact with the fixed contact 110, the fixed contact 110 and the movable contact assembly 120 turn on the circuit. In this case, the high-voltage connection switch 100 is in a closed state. When the drive mechanism 3 separates the movable contact assembly 120 from the fixed contact 110, the fixed contact 110 and the movable contact assembly 120 turn off the circuit. In this case, the high-voltage connection switch 100 is in an open state.

[0032] The drive mechanism 3 is provided with a self-locking assembly 31 such that the self-locking assembly 31 locks to maintain the state between the movable contact assembly 120 and the fixed contact 110 after the drive mechanism 3 abuts the movable contact assembly 120 against or separates it from the fixed contact 110. In this way, after the drive mechanism 3 abuts the movable contact assembly 120 against or separates it from the fixed contact 110, the drive mechanism 3 is locked by the self-locking assembly 31 so that the movable contact assembly 120 and the fixed contact 110 can maintain their abutted or separated states. With this design, when the power supply to the drive mechanism 3 is cut off, the high-voltage connection switch 100 can maintain its open or closed state, and the high-voltage connection switch 100 will not fail due to a power outage, thereby effectively reducing energy consumption and ensuring the safety of external electrical appliances.

[0033] In the prior art, electromagnetic relays use electromagnetic force to turn on or off a circuit and require a continuous power supply to maintain the circuit in a closed or open state, which consumes more electrical energy. In contrast, the high-voltage connection switch 100 in the present application can still maintain an open or closed state after a power outage, which reduces the electrical energy consumption of new energy vehicles and thereby improves their driving range. Furthermore, in the high-voltage connection switch 100, the drive mechanism 3 brings the movable contact assembly 120 into contact with the fixed contact 110, which effectively avoids high-speed impact and reduces noise generation. In addition, the soft contact action reduces damage to the fixed contact 110 and the movable contact assembly 120, so that a longer service life and a better contact interface can be achieved. This effectively solves the problem of the contact components in an electromagnetic relay having to withstand significant impact during switching operations while generating a "clicking" noise.

[0034] In this way, the drive mechanism 3 moves the movable contact assembly 120 relative to the fixed contact 110 to abut against or separate from the fixed contact 110, thereby turning on or off the high-voltage connection switch 100. Additionally, the drive mechanism 3 is provided with a self-locking assembly 31, which locks the drive mechanism 3 so that the movable contact assembly 120 and the fixed contact 110 can remain in abutting or separating state. This allows the high-voltage connection switch 100 to remain in an open or closed state when the power supply to the drive mechanism 3 is cut off, preventing the high-voltage connection switch 100 from failing due to a power supply abnormality. This effectively reduces electrical energy consumption, ensures the safety of external electrical appliances, and improves the cruising range of new energy vehicles. Furthermore, in the high-voltage connection switch 100, the drive mechanism 3 brings the movable contact assembly 120 into contact with the fixed contact 110, which effectively avoids high-speed impact and reduces noise generation. Additionally, the soft contact action reduces damage to the fixed contact 110 and the movable contact assembly 120 so that a longer operational life and a better contact interface may be obtained.

[0035] In some embodiments, the drive mechanism 3 includes a drive member 32, a self-locking assembly 31, and a transmission rod 34. The self-locking assembly 31 is in transmission connection with the drive member 32. The transmission rod 34 is in transmission connection with the self-locking assembly 31. When driven by the drive member 32, the transmission rod 34 pushes the movable contact assembly 120 to move it relative to the fixed contact 110.

[0036] That is, the driving member 32 is indirectly connected to the transmission rod 34. The driving member 32 can move the transmission rod 34 so that the transmission rod 34 presses the movable contact assembly 120 and moves it relative to the fixed contact 110 to turn the high-voltage connecting switch 100 on or off. In addition, the self-locking assembly 31 is disposed between the driving member 32 and the transmission rod 34. The self-locking assembly 31 is connected to both the driving member 32 and the transmission rod 34. That is, the self-locking assembly 31 is connected between the driving member 32 and the transmission rod 34. When the power supply to the driving member 32 is stopped, the self-locking assembly 31 self-locks to lock the rotation between the driving member 32 and the transmission rod 34 and to maintain the current connection state by mechanical force that does not consume power, which can effectively reduce energy consumption and allow separation without arcing.

[0037] Therefore, the driving force of the driving member 32 can be converted into the rotation of the transmission rod 34 at a relatively low speed, thereby implementing a low-speed output of the driving member 32, implementing power amplification, and reducing energy consumption during operation.

[0038] Referring to FIG. 6 , the self-locking assembly 31 may include a worm gear 311 and a worm 312. The worm gear 311 is in transmission connection with the worm 312. The worm gear 311 is in transmission connection with the driving member 32. The worm 312 is in transmission connection with the transmission rod 34. The worm gear 311 can actively rotate the worm 312, and the worm 312 cannot actively rotate the worm gear 311. When the driving member 32 stops driving, the worm 312 prevents the worm gear 311 from rotating, thereby stopping the transmission between the driving member 32 and the transmission rod 34.

[0039] It can be understood that the structure having a worm gear and a worm has self-locking ability and can implement reverse self-locking, that is, to implement the reverse self-locking function of the worm 312 and the worm gear 311, only the worm gear 311 can actively rotate the worm 312, and the worm 312 cannot actively rotate the worm gear 311.

[0040] In this manner, when the output shaft of the drive member 32 begins to rotate, the worm gear 311 and the drive member 32 rotate in cooperation with each other, and then the worm gear 311 is rotationally engaged with the worm 312. In this case, the drive member 32 transmits output power to the transmission rod 34 through the worm gear 311 and the worm 312, and as a result, the transmission rod 34 pushes the movable contact assembly 120 to move it relative to the fixed contact 110. Because the worm 312 and the worm gear 311 have a self-locking function, when the power supply to the driving member 32 is stopped, the worm 312 and the worm gear 311 no longer rotate, and the worm 312 prevents the worm gear 311 from rotating in the opposite direction, so that the self-locking of the worm 312 can be implemented, thereby preventing rotation between the driving member 32 and the transmission rod 34 and ensuring that the transmission rod 34 does not rotate freely, thereby maintaining the abutment or separation state between the movable contact assembly 120 and the fixed contact 110.

[0041] For example, the driving member 32 may specifically be a motor. The output shaft of the motor is in transmission connection with the worm gear 311, and the worm 312 is in transmission connection with the transmission rod 34. When the motor is powered on, the forward and reverse rotation of the motor causes the transmission rod 34 to reciprocate, and the movable contact assembly 120 then moves relative to the fixed contact 110 and abuts against it to separate from it. After the motor is powered off, the worm 312 and the worm gear 311 self-lock, so that the transmission rod 34 is locked by the worm 312 to ensure that the transmission rod 34 no longer rotates, thereby maintaining a contact or separation state between the movable contact assembly 120 and the fixed contact 110.

[0042] 7, the drive mechanism 3 may further include a reduction gear box 33. The self-locking assembly 31 is disposed within the reduction gear box 33. The drive member 32 may be disposed within the reduction gear box 33 or on one side of the reduction gear box 33.

[0043] In addition, the self-locking assembly 31 further includes a reduction gear, which is in transmission connection with the driving member 32, and a worm gear 311 in transmission connection with the reduction gear, which is in transmission connection with a worm 312 to stop the transmission between the driving member 32 and the transmission rod 34.

[0044] Of course, the driving member 32 may specifically be a cylinder, an electromagnet, etc. The transmission rod 34 may specifically implement a screw rotation output, a screw linear output, etc., which is not limited to the contents described in the above embodiments of the present application. Any modification or equivalent substitution made to the technical solution of the present application without departing from the scope of the technical solution of the present application shall fall within the protection scope of the present application.

[0045] In some embodiments, the fixed contact 110 includes a first fixed contact 11 and a second fixed contact 12. The movable contact assembly 120 includes a first movable contact assembly 21 and a second movable contact assembly 22.

[0046] The first movable contact assembly 21 is configured to contact the first fixed contact 11. The second movable contact assembly 22 is configured to contact the second fixed contact 12. The first movable contact assembly 21 and the second movable contact assembly 22 can move in unison such that when the first movable contact assembly 21 is in contact with the first fixed contact 11, the second movable contact assembly 22 is separated from the second fixed contact 12, or when the second movable contact assembly 22 is in contact with the second fixed contact 12, the first movable contact assembly 21 is separated from the first fixed contact 11.

[0047] That is, through the coordinated movement of the first movable contact assembly 21 and the second movable contact assembly 22, the high-voltage connection switch 100 can be put into the following two states: when the first movable contact assembly 21 moves to contact the first fixed contact 11, a first circuit connected to the first movable contact assembly 21 and the first fixed contact 11 can be turned on, and at the same time, the second movable contact assembly 22 is separated from the second fixed contact 12, and a second circuit connected to the second movable contact assembly 22 and the second fixed contact 12 can be turned off; alternatively, when the second movable contact assembly 22 moves to contact the second fixed contact 12, a second circuit connected to the second movable contact assembly 22 and the second fixed contact 12 can be turned on, and at the same time, the first movable contact assembly 21 is separated from the first fixed contact 11, and the first circuit can be turned off. That is, when the first circuit is turned on, the second circuit is in an open state, or when the first circuit is turned off, the second circuit is in a closed state, which enforces the mutually exclusive design of the first and second circuits.

[0048] In this way, for any circuit current in the first circuit or the second circuit, the two moving contacts and two fixed contacts used by a conventional relay to turn on one circuit are directly simplified to one moving contact and one fixed contact, thereby reducing the difficulty of the manufacturing and production process and further reducing weight and cost.

[0049] Furthermore, the high voltage connection switch 100 further includes a press plate 4. The press plate 4 is in transmission connection with the drive mechanism 3. A first movable contact assembly 21 is arranged on one side of the press plate 4 facing a first direction. A second movable contact assembly 22 is arranged on one side of the press plate 4 facing a second direction. The first direction is different from the second direction.

[0050] The drive mechanism 3 can move the press plate 4 in a first direction to push the first movable contact assembly 21 in the first direction and bring it into contact with the first fixed contact 11. The drive mechanism 3 can move the press plate 4 in a second direction to push the second movable contact assembly 22 in the second direction and bring it into contact with the second fixed contact 12.

[0051] Specifically, when the press plate 4 moves in a first direction, the press plate 4 pushes the first movable contact assembly 21 in the first direction and causes it to move in contact with the first fixed contact 11. In this case, the second movable contact assembly 22 is no longer pressed by the press plate 4, i.e., the press plate 4 and the second movable contact assembly 22 are in a separated state. Similarly, when the press plate 4 moves in a second direction, the press plate 4 pushes the second movable contact assembly 22 in the second direction and causes it to move in contact with the second fixed contact 12. In this case, the first movable contact assembly 21 is no longer pressed by the press plate 4, i.e., the press plate 4 is separated from the first movable contact assembly 21.

[0052] Therefore, the drive mechanism 3 reciprocates the press plate 4 between a first direction and a second direction so that the first movable contact assembly 21 and the second movable contact assembly 22 move in unison, thereby achieving mutually exclusive contact / separation between the press plate 4 and the first movable contact assembly 21 and the second movable contact assembly 22. That is, when the press plate 4 presses the first movable contact assembly 21 to contact the first fixed contact 11, the second fixed contact 12 is separated from the second movable contact assembly 22, or when the press plate 4 presses the second movable contact assembly 22 to contact the second movable contact, the first fixed contact 11 is separated from the first movable contact assembly 21.

[0053] It should be noted that the first direction is different from the second direction, and the first direction and the second direction are opposite. For example, in the embodiment of the present application, the first direction is an upward direction and the second direction is a downward direction, as shown in FIG.

[0054] Still further, the mutually exclusive condition between the first movable contact assembly 21 and the second movable contact assembly 22 is satisfied as long as the first direction and the second direction are not the same direction.

[0055] Further, the first movable contact assembly 21 includes a first movable connecting conductor 211 and a first movable contact 212, a first end of the first movable contact 212 being adjacent to one side of the press plate 4 and a second end passing through the first movable connecting conductor 211, the first movable connecting conductor 211 being configured to connect to the first external component 8, and / or the second movable contact assembly 22 includes a second movable connecting conductor 221 and a second movable contact 222, a first end of the second movable contact 222 being adjacent to one side of the press plate 4 and a second end passing through the second movable connecting conductor 221, the second movable connecting conductor 221 being configured to connect to the second external component 9.

[0056] That is, referring to FIG. 3 , the first end of the first movable contact 212 is disposed on the side facing the press plate 4, and the second end passes through the first movable connecting conductor 211. The first end of the first movable contact 212 is pushed by the press plate 4 and slowly moves upward. In this case, the first movable contact 212 can move one end of the first movable connecting conductor 211 upward together with the first movable contact 212 so that the second end of the first movable contact 212 contacts the first fixed contact 11, and the second movable connecting conductor 221 can return the second movable contact 12 to its initial position. Referring to FIG. 5 , when the press plate 4 moves downward and pushes the first end of the second movable contact 222, the second end of the second movable contact 222 contacts the second fixed contact 12. In this case, the first movable connecting conductor 211 can return the first movable contact 212 to its initial position so that the first movable contact 212 is separated from the first fixed contact 11, thereby maintaining appropriate electrical clearance and creepage distance.

[0057] The first ends of the first movable connecting conductor 211 and the second movable connecting conductor 221 are both fixed, and the second ends are both movably arranged, i.e., the second ends are designed to be suspended in order to implement a soft connection.

[0058] In one embodiment of the present application, the first movable connecting conductor 211 and the second movable connecting conductor 221 are flexible connecting copper rods, which have a large heat dissipation area and can regulate the temperature more efficiently, so that the high-voltage connecting switch 100 can have higher heat dissipation efficiency, thereby further increasing the power output or reducing the use of conductor materials.

[0059] In addition, the first movable contact assembly 21 further includes a first elastic member 213, which is wrapped around the first movable contact 212 and sandwiched between the press plate 4 and the first movable connecting conductor 211, and / or the second movable contact assembly 22 further includes a second elastic member 223, which is wrapped around the second movable contact 222 and sandwiched between the press plate 4 and the second movable connecting conductor 221.

[0060] Specifically, the first elastic member 213 is fixed to one side of the first movable connecting conductor 211 that is closer to the press plate 4 , and the first elastic member 213 is fitted around the first movable contact 212 as an exterior covering.

[0061] For example, the first elastic member 213 is a spring member.

[0062] 1 and 2, when driven by the drive mechanism 3, the press plate 4 moves in a first direction (the first direction in this embodiment is upward) so that the first movable contact 212 slowly approaches the first fixed contact 11, achieving full contact between the first fixed contact 11 and the first movable contact 212. The press plate 4 then continues to move in the first direction so that the first elastic member 213 is compressed, providing an appropriate positive force for contact between the first fixed contact 11 and the first movable contact 212, ensuring overcurrent safety. In this case, the circuit is closed. The drive mechanism 3 is then de-energized and stopped, and the self-locking assembly 31 locks, preventing the press plate 4 from moving any further. In this way, the first movable contact 212 and the first fixed contact 11 remain in contact even after a power outage. When the circuit needs to be turned off, a reverse voltage is supplied to the drive mechanism 3 to move the press plate 4 in the opposite direction, i.e., in the second direction (downward in this embodiment), and the first elastic member 213 is released. As the press plate 4 continues to move downward, the first movable contact 212 is separated from the first fixed contact 11, turning off the circuit. After the press plate 4 continues to move to the designated position, the drive mechanism 3 is de-energized, the self-locking assembly 31 locks, and the circuit is in and remains open. Similarly, the second movable contact assembly 22 can further include a second elastic member 223, the operating principle of which is the same as that of the first elastic member 213 and will not be repeated herein.

[0063] In this way, the first movable contact assembly 21 and the second movable contact assembly 22 are provided with the first elastic member 213 and the second elastic member 223, respectively, so that the first elastic member 213 and the second elastic member 223 provide a uniform mechanical force that can ensure soft and stable contact. When an operation is performed after a power outage, contact can be maintained even while the high-voltage connection switch 100 in the closed state is exposed to vibration, which avoids failures caused by vibration and achieves a simple and safe structure. Power-on and power-off are completed instantly, and compared to relays that require contact parts to withstand significant impacts and generate a "clicking" noise, the high-voltage connection switch 100 of the present application can reduce noise.

[0064] Additionally, the first movable connecting conductor 211 and the second movable connecting conductor 221 each include a first connecting portion 221a and a second connecting portion 221b, with the second connecting portion 221b bent horizontally relative to the first connecting portion 221a. One end of the first connecting portion 221a, remote from the second connecting portion 221b, is configured to connect to an external component, and a movable contact is disposed at one end of the second connecting portion 221b, remote from the first connecting portion 221a. That is, the first movable connecting conductor 211 is used as an example, and one end of the first connecting portion 221a is fixed to form a fixed attachment point for connecting the first external component 8. The second connecting portion 221b is bent horizontally relative to the first connecting portion 221a to have a certain rigidity, which is beneficial for the press plate 4 to press and move the second connecting portion 221b.

[0065] 4 and 5, the first connecting portion 221a is disposed vertically, and the second connecting portion 221b is bent horizontally relative to the first connecting portion 221a to allow the second connecting portion 221b to move to a certain extent. Of course, the second connecting portion 221b may be bent horizontally multiple times to ensure that it has adequate rigidity and is not deformed by being pressed by the press plate 4.

[0066] Furthermore, there may be a plurality of first fixed contacts 11 and a plurality of first movable contact assemblies 21 arranged in a one-to-one correspondence. There may be a plurality of second fixed contacts 12 and a plurality of second movable contact assemblies 22 arranged in a one-to-one correspondence.

[0067] In the embodiment of the present application, the high-voltage connection switch 100 is designed to include two first fixed contacts 11 and two first movable contact assemblies 21, i.e., two first circuits, and eight second fixed contacts 12 and eight second movable contact assemblies 22, i.e., eight second circuits, so that the turn-on or turn-off of ten circuit loops can be controlled.

[0068] In this way, the high-voltage connection switch 100 of the present application can, on the one hand, turn on or turn off multiple circuits, and the multiple circuits do not need to have the same load, which implements integration of various loads and replaces multiple relays for operation, thereby effectively reducing costs, weight, and installation space. On the other hand, based on existing relays, mutually exclusive turn on / turn off of multiple first circuits and multiple second circuits can be implemented, and integration of mutually exclusive circuit states can be implemented, and turn on or turn off of multiple mutually exclusive circuits can be implemented by using a single control signal, which effectively simplifies the control circuit, improves the reliability of the control system, reduces the risk of failure, and reduces costs. As a result, the high-voltage connection switch 100 has a high level of integration.

[0069] 1 and 2, the high-voltage connection switch 100 further includes a first fixed connection conductor 5 and a second fixed connection conductor 6. A first fixed contact 11 is disposed on the first fixed connection conductor 5, and the first fixed connection conductor 5 is combined with the first fixed contact 11 to form a first fixed connection assembly. A second fixed contact 12 is disposed on the second fixed connection conductor 6, and the second fixed connection conductor 6 is combined with the second fixed contact 12 to form a second fixed connection assembly. One end of the first fixed connection assembly remote from the first fixed contact 11 and one end of the second fixed connection assembly remote from the second fixed contact 12 are separately configured to connect to external components.

[0070] In one embodiment of the present application, the first and second fixed connection assemblies may be rigid connection copper bars. One end of the rigid connection copper bar is provided with the first fixed contact 11 / second fixed contact 12, and the other end is configured to connect to an external component. In addition, the copper bar has a larger heat dissipation area, so that the high-voltage connection switch 100 can have higher heat dissipation efficiency and regulate temperature more efficiently, thereby further increasing output power or reducing the use of conductor material.

[0071] Of course, the first fixed connecting conductor 5 and the second fixed connecting conductor 6 are not limited to the aforementioned rigid connecting copper rods, and the first movable connecting conductor 211 and the second movable connecting conductor 221 are not limited to the aforementioned flexible connecting copper rods. They may instead be connecting conductors such as conductors not described herein for the sake of brevity. It should be understood that other metal conductors fall within the scope of protection of the present application.

[0072] 1 and 2, the high voltage connection switch 100 further includes a mounting base 7. The drive mechanism 3, the fixed contact 110, and the press plate 4 are all disposed on the mounting base 7.

[0073] Referring to the embodiment of the present application, the first fixed connection conductor 5 and the second fixed connection conductor 6 are disposed on the mounting base 7. One end of the first movable contact assembly 21 is fixed on the mounting base 7, and the other end is disposed between the first fixed connection assembly and the press plate 4. One end of the second movable contact assembly 22 is fixed on the mounting base 7, and the other end is disposed between the second fixed connection assembly and the press plate 4. The press plate 4 can push the first movable contact assembly 21 and the second movable contact assembly 22 to move them up and down relative to the mounting base 7. In this manner, the drive mechanism 3 is mounted on the mounting base 7, and the first fixed connection conductor 5 and the second fixed connection conductor 6 are mounted on the upper and lower sides of the mounting base 7, respectively. In addition, a first end of the first movable connection conductor 211 of the first movable contact assembly 21 is fixed on the mounting base 7, and a second end is disposed between the first fixed connection conductor 5 and the press plate 4. Similarly, a first end of the second movable connecting conductor 221 in the second movable contact assembly 22 is fixed on the mounting base 7, and a second end thereof is disposed between the second fixed connecting conductor 6 and the press plate 4. The press plate 4 can press the first movable contact assembly 21 and the second movable contact assembly 22 to move them in a first direction and a second direction relative to the mounting base 7, thereby performing mutually exclusive turn-on / turn-off of the first circuit and the second circuit.

[0074] In addition, the press plate 4 is provided with a first rotating plate and a second rotating plate, one end of the first rotating plate is rotatably connected to the mounting base 7, the other end of the first rotating plate is disposed on one side of the press plate 4 facing the first direction, and a first guide portion is provided on the other end, and when the drive member 32 moves the press plate 4 in the first direction, the first rotating plate rotates relative to the mounting base 7, and the first guide portion of the first rotating plate is guided by a first elastic The second rotating plate cooperates with the member 213 in a guiding manner, and / or one end of the second rotating plate is rotatably connected to the mounting base 7, and the other end of the second rotating plate is arranged on one side of the press plate 4 facing the second direction, and a second guide portion is provided at the other end, so that when the drive member 32 moves the press plate 4 in the second direction, the second rotating plate rotates relative to the mounting base 7, and the second guide portion of the second rotating plate cooperates with the second elastic member 223 in a guiding manner.

[0075] In this way, the rotational paths of the first and second rotary plates are fixed. The press plate 4 presses the first rotary plate in the first direction so that the first guide portion can be sufficiently guided to cooperate with the first elastic member 213, and thus the first movable connecting conductor 211 can accurately move to abut the first fixed contact 11. The same principle is applied to the second rotary plate.

[0076] In addition, the high-voltage connection switch 100 further includes a guide assembly 71. The guide assembly 71 is disposed on the mounting base 7. The guide assembly 71 cooperates with the press plate 4 to guide the press plate 4 so that the press plate 4 moves in one direction along the guide assembly 71. In this manner, the guide assembly 71 is disposed on the mounting base 7 so that the press plate 4 moves up and down along the guide assembly 71, ensuring stability and accuracy in the movement of the press plate 4 and extending the operational life of the press plate 4.

[0077] In some embodiments, the guide assembly 71 includes a guide post 711 and a guide sleeve 712. The guide post 711 is disposed on the mounting base 7, and the guide sleeve 712 is disposed at the end of the guide post 711. The press plate 4 passes through the guide post 711 and moves in one direction along the guide post 711. In this manner, the guide post 711 is disposed on the mounting base 7, the guide sleeve 712 is disposed at the bottom of the guide post 711, the press plate 4 passes through the guide post 711, and is driven by the drive mechanism 3 to move the press plate 4 in one direction along the guide post 711. This has a simple structure and improves the stability of movement. The guide post 711 may be a metal guide post 711, which can extend its operational life.

[0078] Naturally, the guide assembly 71 may instead be replaced or extended by an alignment and guiding device such as an alignment post or a guide (or slide) rail, and this falls within the scope of protection of the present application.

[0079] Furthermore, the high-voltage connection switch 100 further includes a first limit assembly 72 and a second limit assembly 73, which are adjustably disposed on the mounting base 7, and the press plate 4 is disposed between the first limit assembly 72 and the second limit assembly 73 so that it moves in a limited manner between the first limit assembly 72 and the second limit assembly 73. In this manner, the adjustable first limit assembly 72 and the second limit assembly 73 are disposed above and below the mounting base 7 so that the press plate 4 moves in a limited manner between the first limit assembly 72 and the second limit assembly 73. In addition, the positions of the first limit assembly 72 and the second limit assembly 73 are adjustable so that they can be adjusted according to actual product tolerances to achieve accurate positioning and limitation.

[0080] For example, the first limit assembly 72 may include a first limit block and a first position sensor. The first position sensor is mounted on the first limit block. The second limit assembly 73 may include a second limit block and a second position sensor. The second position sensor is mounted on the second limit block. As shown in FIG. 2 , when the press plate 4 moves in a first direction and comes into contact with the first limit block or moves a specified distance, the first position sensor can detect the position of the press plate 4 and control the press plate 4 to continue moving. Similarly, when the press plate 4 moves in a second direction and comes into contact with the second limit block or moves a specified distance, the second position sensor can detect the position of the press plate 4 and control the press plate 4 to continue moving. As a result, the movement of the press plate 4 can be limited, and the operational life of the press plate 4 can be improved.

[0081] The first limiting assembly 72 and the second limiting assembly 73 may be externally connected to a signal circuit 10 for identifying contact and separation states between the fixed contact 110 and the movable contact assembly 120 .

[0082] That is, the above-mentioned first and second position sensors may be externally connected to the signal circuit 10 for identifying the contact state and separation state between the movable contact assembly 21 and the fixed contact 110, thereby accurately controlling the on-off operation of the drive mechanism 3.

[0083] Of course, the first limit assembly 72 and the second limit assembly 73 include, but are not limited to, limit blocks, devices or structures such as limit switches, limit columns, limit sensors, and limit telescoping devices, all of which are intended to fall within the scope of protection of this application.

[0084] 2 , the press plate 4 is provided with a first insulating base 74 and a second insulating base 75. The first insulating base 74 is disposed on the press plate 4 and surrounds the first movable contact assembly 21. The second insulating base 75 is disposed below the press plate 4 and surrounds the second movable contact assembly 22. Thus, in this embodiment, since the press plate 4 is a metal press plate, the first insulating base 74 is disposed on the press plate 4 and surrounds the first movable contact assembly 21 and the first fixed contact 11, which should be insulated and isolated from the press plate 4, and the second insulating base 75 is disposed below the press plate 4 and surrounds the second movable contact 222 and the second fixed contact 12, which should also be insulated and isolated from the press plate 4.

[0085] As shown in FIG. 8, a vehicle 1000 according to an embodiment of the second aspect of the present application includes a high voltage connection switch 100.

[0086] Therefore, the drive mechanism 3 moves the movable contact assembly relative to the fixed contact 110 to abut against or separate from the fixed contact 110, so that the high-voltage connection switch 100 can be turned on or off. Additionally, the drive mechanism 3 is locked using the self-locking assembly 31, so that the movable contact assembly 120 and the fixed contact 110 can remain in abutting or separated state. The high-voltage connection switch 100 can remain in an open or closed state when power supply to the drive mechanism 3 is cut off, and the high-voltage connection switch 100 will not malfunction due to a power outage. This effectively reduces electrical energy consumption and ensures electrical safety. Furthermore, in the high-voltage connection switch 100, the drive mechanism 3 brings the movable contact assembly 120 into contact with the fixed contact 110, which effectively avoids high-velocity impact and reduces noise generation. Additionally, the soft contact action reduces damage to the fixed contact 110 and the movable contact assembly, resulting in a longer operational life and a better contact interface. In addition, the turning on or off of multiple circuits can be implemented, and the multiple circuits do not need to have the same load. This can implement the integration of various loads and replace multiple relays for operation, thereby effectively reducing costs, weight, and installation space. On the other hand, the mutually exclusive turning on / off of the first circuit loop and the second circuit loop can be implemented, and the integration of mutually exclusive circuit states can be implemented based on existing relays. In addition, the turning on or off of multiple mutually exclusive circuits can be implemented by using a single control signal, which effectively simplifies the control circuit, improves the reliability of the control system, reduces the risk of failure, and reduces costs. As a result, the high-voltage connection switch 100 has a high level of integration.

[0087] The high-voltage connection switch 100 in this application is a switch that controls the connection or disconnection of multiple high-voltage loops. Each loop is connected in the form of a single contact, which is an electrical connection structure that does not require continuous operation for connection or disconnection.

[0088] In the description of this application, it should be understood that orientations or positional relationships indicated by terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like, are as shown in the drawings, and do not indicate or imply that the devices or elements shown must have, be configured, or operate in a particular orientation, but are merely for the purpose of facilitating and simplifying the description of this application, and as such, these terms are not to be construed as limiting this application.

[0089] In the description herein, reference to a description of terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples" means that the specific feature, structure, material, or characteristic described with reference to that embodiment or example is included in at least one embodiment or example of the present application. General references to such terms in the description herein are not necessarily directed to the same embodiment or example.

[0090] While embodiments of the present application have been shown and described, those skilled in the art will recognize that many changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purpose of the present application, and that the scope of the present application is defined by the claims and their equivalents. [Explanation of symbols]

[0091] 100 High Voltage Connection Switch 1000 vehicles 11 First fixed contact 12 Second fixed contact 110 Fixed contacts 120 Moving Contact Assembly 21 First moving contact assembly 211 First movable connecting conductor 212 first moving contact 213 First elastic member 22 Second moving contact assembly 221 Second movable connecting conductor 221a First connecting part 221b Second connecting part 222 Second moving contact 223 Second elastic member 3 Drive mechanism 31 Self-locking assembly 311 Worm Gear 312 Warm 32 Driving member 33 Reduction gearbox 34 Transmission rod 4 Press Plate 5 First fixed connecting conductor 6 Second fixed connecting conductor 7 Mounting base 71 Guidance assembly 711 Information Post 712 Guide sleeve 72 First Restriction Assembly 73 Second Restriction Assembly 74 First insulating base 75 Second insulating base 8 First External Component 9 Second External Component 10 Signal circuit

Claims

1. A fixed contact (110); a movable contact assembly (120); a drive mechanism (3) configured to move the movable contact assembly (120) relative to the fixed contact (110), the self-locking assembly (31) being provided so as to lock to maintain a state between the movable contact assembly (120) and the fixed contact (110) after the drive mechanism (3) brings the movable contact assembly (120) into contact with or separates from the fixed contact (110); and A high voltage connection switch (100) comprising:

2. The drive mechanism (3) a drive member (32) in transmission connection with said self-locking assembly (31); a transmission rod (34) in transmission connection with the self-locking assembly (31), driven by the driving member (32), and pushing the movable contact assembly (120) to move relative to the fixed contact (110); The high voltage connection switch (100) of claim 1 further comprising:

3. The self-locking assembly (31) a worm gear (311) in transmission connection with the driving member (32); a worm (312) in transmission connection with the worm gear (311) and in transmission connection with the transmission rod (34), the worm gear (311) can actively rotate the worm (312), the worm (312) cannot actively rotate the worm gear (311), and when the driving mechanism (3) stops driving, the worm (312) prevents the worm gear (311) from rotating, thereby stopping the transmission between the driving member (32) and the transmission rod (34); The high voltage connection switch (100) of claim 2, comprising:

4. The fixed contact (110) comprises a first fixed contact (11) and a second fixed contact (12); the movable contact assembly (120) comprises a first movable contact assembly (21) and a second movable contact assembly (22), the first movable contact assembly (21) being configured to contact the first fixed contact (11), and the second movable contact assembly (22) being configured to contact the second fixed contact (12); 4. The high-voltage connection switch (100) according to claim 1, wherein the first movable contact assembly (21) and the second movable contact assembly (22) move in unison such that the second movable contact assembly (22) is separated from the second fixed contact (12) when the first movable contact assembly (21) is in contact with the first fixed contact (11), or such that the first movable contact assembly (21) is separated from the first fixed contact (11) when the second movable contact assembly (22) is in contact with the second fixed contact (12).

5. 2. The high-voltage connection switch (100) of claim 1, further comprising a press plate (4), the press plate (4) being in transmission connection with the drive mechanism (3), the drive mechanism (3) being configured to move the press plate (4) to press the movable contact assembly (120) toward the fixed contact (110) and bring it into contact with the fixed contact (110).

6. The press apparatus further includes a press plate (4), the press plate (4) being in transmission connection with the drive mechanism (3), the first movable contact assembly (11) being arranged on one side of the press plate (4) facing a first direction, and the second movable contact assembly (22) being arranged on one side of the press plate (4) facing a second direction, the first direction being different from the second direction; the drive mechanism (3) is configured to move the press plate (4) in the first direction to push the first movable contact assembly (21) in the first direction and bring it into contact with the first fixed contact (11); or 5. The high-voltage connection switch (100) of claim 4, wherein the drive mechanism (3) is configured to move the press plate (4) in the second direction to press the second movable contact assembly (22) in the second direction and bring it into contact with the second fixed contact (12).

7. the first movable contact assembly (21) comprises a first movable connecting conductor (211) and a first movable contact (212), a first end of the first movable contact (212) being adjacent to one side of the press plate (4), a second end of the first movable contact (212) passing through the first movable connecting conductor (211), and the first movable connecting conductor (211) being configured to connect to a first external component (8); and / or 7. The high-voltage connection switch (100) according to claim 6, wherein the second movable contact assembly (22) comprises a second movable connecting conductor (221) and a second movable contact (222), a first end of the second movable contact (222) being adjacent to one side of the press plate (4), a second end of the second movable contact (222) passing through the second movable connecting conductor (221), and the second movable connecting conductor (221) being configured to connect to a second external component (9).

8. The first movable contact assembly (21) further comprises a first elastic member (213), which is wrapped around the first movable contact (212) and sandwiched between the press plate (4) and the first movable connecting conductor (211); and / or 8. The high-voltage connection switch (100) according to claim 7, wherein the second movable contact assembly (22) further comprises a second elastic member (223), the second elastic member (223) being sheathed around the second movable contact (222) and sandwiched between the press plate (4) and the second movable connecting conductor (221).

9. 9. The high-voltage connection switch (100) according to any one of claims 4 and 5 and 7 and 8, wherein there are a plurality of first fixed contacts (11) and a plurality of first movable contact assemblies (21) arranged in a one-to-one correspondence, and there are a plurality of second fixed contacts (12) and a plurality of second movable contact assemblies (22) arranged in a one-to-one correspondence.

10. a mounting base (7) on which the drive mechanism (3), the fixed contact (110), and the press plate (4) are all disposed; The high voltage connection switch (100) of any one of claims 4 to 9, further comprising:

11. a guide assembly (71) disposed on the mounting base (7) and cooperating with the press plate (4) to guide the press plate (4) along the guide assembly (71) in one direction; The high voltage connection switch (100) of claim 10 further comprising:

12. The guide assembly (71) a guide post (711) disposed on the mounting base (7); a guide sleeve (712) arranged at an end of the guide post (711), through which the press plate (4) can pass and which is configured to move in one direction along the guide post (711); The high voltage connection switch (100) of claim 11, comprising:

13. a first restriction assembly (72); a second limit assembly (73), wherein the second limit assembly (73) and the first limit assembly (72) are adjustably disposed on the mounting base (7), the press plate (4) is disposed between the first limit assembly (72) and the second limit assembly (73) so as to move in a restricted manner between the first limit assembly (72) and the second limit assembly (73), and the first limit assembly (72) and the second limit assembly (73) are externally connected to a signal circuit (10) for identifying a contact state and a separation state between the fixed contact (110) and the movable contact assembly (120); The high voltage connection switch (100) of any one of claims 10 to 12, further comprising:

14. A high voltage connection switch (100) according to any one of claims 1 to 13. A vehicle (1000) comprising:

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