Contactors, contactor systems, high-voltage switch boxes and carriers

Abstract

This application relates to the field of electric vehicle technology and discloses a contactor, a contactor system, a high-voltage distribution box, and a carrier. The contactor includes a first housing, a first stationary contact unit, a first moving contact unit, and an adapter. The first housing has a receiving cavity. The first stationary contact unit is disposed at the end of the first housing, and the first moving contact unit is movably disposed in the receiving cavity. The first moving contact unit can move toward or away from the first stationary contact unit in a first direction. When the first moving contact unit moves in the direction away from the first stationary contact unit, it can form a conductive contact with the second contact end of the adapter. When the contactor provided in this application is used in conjunction with a conventional contactor, it can ensure that the outer housings of the two contactors face the same direction, and when the internal moving contact unit is driven to close with the stationary contact unit, the moving contact units in the two contactors move in opposite directions.

Description

Technical Field

[0001] This application relates to the field of electric vehicle technology, specifically to a contactor, a contactor system, a high-voltage distribution box, and a carrier. Background Technology

[0002] In the high-voltage circuit of new energy vehicles, there are multiple high-voltage contactors. In particular, two high-voltage contactors connected to the load high-voltage capacitor in the same circuit may simultaneously close unexpectedly when the vehicle is subjected to severe vibration during driving or transportation. This can cause a short circuit between the battery and the load capacitor, generating a large instantaneous current, which in turn can cause the high-voltage contactor contacts to stick together.

[0003] In existing technologies, two high-voltage contactors in the same high-voltage circuit are typically arranged in opposite directions, meaning the ends of the two high-voltage contactors with stationary contacts face opposite directions, to prevent both high-voltage contactors from closing unexpectedly at the same time. However, arranging two high-voltage contactors in opposite directions presents problems such as difficult assembly, large amount of connecting conductors, difficulty in connecting to external connecting conductors, and the need for additional protective structures for insulation isolation, resulting in high production costs and low assembly efficiency. Utility Model Content

[0004] In view of this, this application provides a contactor, a contactor system, a high-voltage distribution box, and a carrier to solve the problem of high production costs and low assembly efficiency caused by two high-voltage contactors being arranged in opposite directions.

[0005] In a first aspect, this application provides a contactor, including a first housing, a first stationary contact unit, a first moving contact unit, and an adapter. The first housing has a receiving cavity, the first stationary contact unit is disposed at the end of the first housing, and the first moving contact unit is movably disposed in the receiving cavity. The first moving contact unit is movable in a first direction toward or away from the first stationary contact unit. The adapter has a first contact end and a second contact end disposed opposite to each other. The first contact end of the adapter is electrically connected to the stationary contact of the first stationary contact unit. The moving contact of the first moving contact unit is disposed between the first contact end and the second contact end, and when the first moving contact unit moves in a direction away from the first stationary contact unit, it is able to make conductive contact with the second contact end of the adapter.

[0006] Beneficial effects: The contactor provided in this application can achieve electrical connection between the first moving contact unit and the first stationary contact unit through an adapter when the first moving contact unit is in a first direction away from the first stationary contact unit. When this contactor is used in conjunction with a conventional contactor, it can ensure that the outer housings of the two contactors face the same direction, and when the internal moving contact unit and stationary contact unit are closed, the moving contact units in the two contactors move in opposite directions.

[0007] The contactor provided in this application is used in conjunction with conventional contactors. Since the two contactors can be installed in the high-voltage distribution box in the same direction, there is no need to flip the high-voltage distribution box to install contactors with different orientations during the operation of assembling the two contactors into the high-voltage distribution box, thereby improving production efficiency.

[0008] In this application, the two contactors can be installed in the high-voltage distribution box in the same direction. The stationary contacts and connection points on the two contactors are close to each other, thereby reducing the amount of connecting conductors used and saving space and production costs.

[0009] In this application, the two contactors can be installed in the high-voltage distribution box in the same direction, which facilitates the welding of the two contactors to the external connecting conductor, thereby improving production efficiency.

[0010] In this application, the two contactors can be installed in the high-voltage distribution box in the same direction. Compared with the prior art where one contactor is installed upside down with the installation point facing down and energized, requiring an additional protective structure on the opposite side for insulation isolation, the two contactors in this application are installed in the same direction, so there is no need to add an additional protective structure for insulation isolation, thereby reducing material costs and improving assembly efficiency.

[0011] In one alternative embodiment, the adapter includes one of an adapter busbar, an adapter wire, or a flexible conductive strip.

[0012] Beneficial effects: Adapters can adopt different adapter structures to meet different usage requirements.

[0013] In one optional embodiment, the first stationary contact unit includes two stationary contacts, and the first moving contact unit includes two moving contacts. The two stationary contacts and the two moving contacts are correspondingly arranged, and when the two moving contacts move, they can be electrically connected to the two stationary contacts through the adapter.

[0014] Beneficial effects: By aligning the two stationary contacts with the two moving contacts, redundant conductive paths are formed. When the moving contacts move, each of the two moving contacts forms an independent conductive loop with its corresponding stationary contact via an adapter. This dual-loop design improves current carrying capacity, and through the physically isolated dual-contact structure, even if one moving contact momentarily disengages under vibration, the other moving contact can still maintain conductive continuity, thereby enhancing the contactor's operational stability.

[0015] In one alternative embodiment, the moving contact is configured as an annular shape, a guide post is provided in the receiving cavity, and the moving contact is sleeved on the guide post.

[0016] Beneficial effects: The moving contact is designed with a ring structure, and the moving contact is limited by the guide post to ensure that the moving contact maintains a stable moving trajectory during movement, preventing the moving contact from deviating or jamming, thereby improving the working reliability and service life of the contactor.

[0017] In one alternative embodiment, a high-voltage sampling terminal is provided on the first housing; and / or, a low-voltage control terminal is provided on the first housing, the low-voltage control terminal being electrically connected to the first moving contact unit.

[0018] Beneficial effects: By setting a high-voltage sampling terminal, the voltage from one end of the contactor to the battery can be obtained, thereby achieving voltage monitoring. By setting a low-voltage control terminal, the movement of the moving contact inside the contactor can be controlled, that is, the engagement and disengagement of the moving and stationary contacts can be controlled, thereby ensuring that the contact opening and closing state remains synchronized with the control system commands.

[0019] Secondly, this application provides a contactor system, including a first contactor and a second contactor, wherein the first contactor is any of the contactors described above; the second contactor includes a second housing and a second stationary contact unit disposed at an end of the second housing; wherein the first housing of the first contactor and the second housing are disposed in the same direction, and the first stationary contact unit and the second stationary contact unit are respectively disposed on the ends of the first housing and the second housing facing the same direction.

[0020] Beneficial effects: The first contactor adopts a structural design including an adapter, allowing its first moving contact unit to form conductive contact with the stationary contact unit via the adapter during movement. The arrangement of the first contactor allows for decoupling of the contact action direction from the housing mounting direction. The second stationary contact unit of the second contactor is located at the housing end facing the same direction as the first contactor, ensuring that both contactors maintain the same external mounting direction. However, the adapter design of the first contactor reverses the internal moving contact closure direction. This arrangement simplifies the assembly of both contactors, reduces the amount of connecting conductors required, facilitates easy connection to external connecting conductors, and eliminates the need for additional protective insulation structures, thereby reducing production costs and improving assembly efficiency.

[0021] In one alternative embodiment, the second housing has a receiving cavity, and the second contactor further includes a second moving contact unit movably disposed in the receiving cavity. The second moving contact unit is movable in a first direction toward or away from the second stationary contact unit, and when the second moving contact unit moves to a second position in the direction toward the second stationary contact unit, it is able to form a conductive contact with the second stationary contact unit.

[0022] Beneficial effects: By setting the second moving contact unit to the second position along the direction close to the second stationary contact unit, it can form a conductive contact with the second stationary contact unit. The second moving contact unit set inside the second housing is designed to move in the opposite direction to the first contactor. When mechanical vibration is transmitted to the first and second contactors, since the first and second moving contact units move in the same direction, they cannot reach the closed state at the same time, thus effectively avoiding the synchronous closing of the first and second contactors.

[0023] Thirdly, this application provides a high-voltage distribution box, including the contactor system described above.

[0024] Beneficial effects: The high-voltage distribution box has the aforementioned first contactor and second contactor, which facilitates the production of high-voltage distribution boxes and reduces production costs.

[0025] In one optional embodiment, the high-voltage distribution box includes a box body, and the first contactor and the second contactor are both disposed in the box body, with the first stationary contact unit and the second stationary contact unit facing the bottom plate of the box body.

[0026] Fourthly, this application provides a carrier including the aforementioned high-voltage distribution box. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram showing the positional relationship between the first contact unit and the first housing in an embodiment of this application;

[0029] Figure 2 This is a schematic diagram showing the positional relationship between the low-voltage control terminal and the first housing in an embodiment of this application;

[0030] Figure 3 This is a schematic diagram showing the positional relationship between the first moving contact unit and the adapter in an embodiment of this application;

[0031] Figure 4 This is a schematic diagram showing the positional relationship between the first contactor and the second contactor and the housing in an embodiment of this application;

[0032] Figure 5 This is a schematic diagram showing the positional relationship between the first contactor and the second contactor in an embodiment of this application;

[0033] Figure 6 This is a schematic diagram of the internal structure of the second contactor in an embodiment of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] Z, First direction;

[0036] 1. First contactor; 11. First housing; 12. First stationary contact unit; 121. Stationary contact; 13. First moving contact unit; 131. Moving contact; 14. Adapter; 141. First contact end; 142. Second contact end; 15. High-voltage sampling terminal; 16. Low-voltage control terminal; 17. Guide post;

[0037] 2. Second contactor; 21. Second housing; 22. Second stationary contact unit; 23. Second moving contact unit;

[0038] 3. Box body. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] Please refer to Figures 1-6 In a first aspect, this application provides a contactor, including a first housing 11, a first stationary contact unit 12, a first moving contact unit 13, and a connector 14. The first housing 11 has a receiving cavity, the first stationary contact unit 12 is disposed at the end of the first housing 11, and the first moving contact unit 13 is movably disposed in the receiving cavity. The first moving contact unit 13 can move toward or away from the first stationary contact unit 12 in a first direction Z. The connector 14 has a first contact end 141 and a second contact end 142 disposed opposite to each other. The first contact end 141 of the connector 14 is electrically connected to the stationary contact 121 of the first stationary contact unit 12. The moving contact 131 of the first moving contact unit 13 is disposed between the first contact end 141 and the second contact end 142, and when the first moving contact unit 13 moves in a direction away from the first stationary contact unit 12, it can make conductive contact with the second contact end 142 of the connector 14.

[0041] First, it should be noted that the first direction Z refers to the axial direction of the first housing 11.

[0042] Understandably, the contactor provided in this application, when the first moving contact unit 13 moves along a first direction Z away from the first stationary contact unit 12 and moves to a first position, can achieve electrical connection between the first moving contact unit 13 and the first stationary contact unit 12 through the adapter 14. When this contactor is used in conjunction with a conventional contactor, it can ensure that the outer housings of the two contactors face the same direction, and when the internal moving contact unit 131 and stationary contact unit 121 are closed, the moving contact units 131 in the two contactors move in opposite directions.

[0043] In this embodiment, the first housing 11 is configured as an insulating structure. The first housing 11 is used to carry the internal components of the contactor, and the accommodating cavity space of the first housing 11 provides a directional movement track for the first moving contact unit 13. The first stationary contact unit 12 is disposed on the outer wall of the end of the first housing 11. The first stationary contact unit 12, as a conductive component, can be made of copper alloy material and processed into a sheet structure, thereby connecting to an external circuit. The first moving contact unit 13, as a conductive component that can move along the first direction Z, can achieve directional movement through electromagnetic drive or other driving methods.

[0044] In this embodiment, the adapter 14 serves as a conductive intermediary. The adapter 14 has a first contact end 141 corresponding to the first stationary contact unit 12 and a second contact end 142 corresponding to the first moving contact unit 13. The adapter 14 connects the first stationary contact unit 12 and the first moving contact unit 13. That is, when the first moving contact unit 13 forms a conductive contact with the adapter 14, electricity is conducted to the first stationary contact unit 12 through the adapter 14, thus closing the connection between the first moving contact unit 13 and the first stationary contact unit 12. When the first moving contact unit 13 separates from the adapter 14, the connection between the first moving contact unit 13 and the first stationary contact unit 12 is broken.

[0045] With this configuration, when the aforementioned contactor and a conventional contactor are installed in the same direction, although the external structures are identical, the difference in the internal adapter 14 actually creates an anti-sticking mechanism with opposite contact action directions, thereby ensuring that unexpected displacement caused by vibration will not cause the two contactors to conduct synchronously.

[0046] Optionally, refer to Figure 3 The adapter 14 includes one of an adapter copper busbar, an adapter wire, or a flexible conductive strip.

[0047] In this embodiment, the adapter 14 can adopt different structures according to actual usage requirements. For example, the adapter 14 can be configured as an adapter copper busbar, which refers to a metal busbar structure with high conductivity. Specifically, it can be made of copper material through stamping. Its rigid structure can maintain a stable electrical connection between the stationary contact 121 and the moving contact 131 within a limited space. Alternatively, the adapter 14 can be configured as an adapter wire, which refers to a conductor formed by twisting multiple strands of metal wire. Specifically, it can be made of copper core wire with an outer insulation layer. Its flexibility allows deformation compensation when the moving contact 131 moves. Or, the adapter 14 can be configured as a flexible conductive strip, which refers to a strip conductor made of stacked or woven metal foil sheets. Specifically, it can be made of a composite structure of copper foil and polyester film, which has both conductivity and deformation adaptability.

[0048] In one specific embodiment, when an adapter copper busbar is used as the adapter 14, the adapter copper busbar can be bent to form a first contact end 141 and a second contact end 142, wherein the first contact end 141 is welded and fixed to the stationary contact 121, and the second contact end 142 is used in conjunction with the moving contact 131.

[0049] Of course, in addition to the above-mentioned arrangement, the adapter 14 can also be made of other materials and structures that can achieve electrical conductivity.

[0050] Optionally, refer to Figure 1 , Figure 3 The first stationary contact unit 12 includes two stationary contacts 121, and the first moving contact unit 13 includes two moving contacts 131. The two stationary contacts 121 and the two moving contacts 131 are correspondingly arranged. When the two moving contacts 131 move, they can be electrically connected to the two stationary contacts 121 through the adapter 14.

[0051] In this embodiment, two stationary contacts 121 are arranged side by side on the same end of the first housing 11. The following description uses the adapter 14 as an example of an adapter copper busbar. The adapter 14 has one first contact end 141, and both stationary contacts 121 are electrically connected to the first contact end 141. The adapter 14 has two second contact ends 142, which are respectively arranged corresponding to two moving contacts 131. When the first moving contact unit 13 is controlled to move to the first position, the two moving contacts 131 respectively form surface contact with the two second contact ends 142 of the adapter 14, and the current is conducted from the stationary contact 121 to the moving contact 131 through the adapter 14.

[0052] With this configuration, the adapter 14 diverts the current to the two moving contacts 131, and each moving contact 131 forms an independent conductive circuit with its corresponding stationary contact 121 through the adapter 14. This dual-circuit design improves the current carrying capacity, and through the physically isolated dual-contact structure, even if one moving contact 131 momentarily disengages under vibration, the other moving contact 131 can still maintain conductive continuity, thus reducing the likelihood of contact failure and improving the contactor's operational stability.

[0053] Optionally, refer to Figure 3 The moving contact 131 is annular, and a guide post 17 is provided in the receiving cavity. The moving contact 131 is sleeved on the guide post 17.

[0054] In this embodiment, the moving contact 131 is configured as a ring structure with a closed-loop geometry, and the moving contact 131 can be made of a copper alloy ring conductor. The guide post 17 is configured as a columnar guide component, and can be made of a smooth-surfaced insulating material cylinder. The axis of the guide post 17 is parallel to the moving direction of the moving contact 131, thereby using the guide post 17 to constrain the moving contact 131 to generate radial displacement.

[0055] This configuration allows the moving contact 131 to be limited by the guide post 17 when it moves along the first direction Z, ensuring a stable trajectory and improving the contactor's reliability. Furthermore, designing the moving contact 131 as a ring structure increases the contact area between it and the adapter 14, optimizing the current conduction path and further enhancing the controller's performance.

[0056] Optionally, refer to Figure 1 , Figure 2 , Figure 3 A high-voltage sampling terminal 15 is provided on the first housing 11; and / or a low-voltage control terminal 16 is provided on the first housing 11, the low-voltage control terminal 16 being electrically connected to the first moving contact unit 13.

[0057] In this embodiment, high-voltage sampling terminals 15 are provided at both ends of the first housing 11. The high-voltage sampling terminal 15 refers to a conductive connection structure provided at a specific position of the first housing 11. Specifically, it can be a metal probe or a conductive terminal. The high-voltage sampling terminal 15 is used to directly acquire the real-time voltage signal from one end of the contactor to the battery end, thereby enabling real-time monitoring of the voltage balance between the battery end and the load end.

[0058] In this embodiment, the low-voltage control terminal 16 forms an electrical path with the first moving contact unit 13. By setting the low-voltage control terminal 16, the movement of the moving contact 131 inside the contactor can be controlled, that is, the engagement and disengagement of the moving contact 131 and the stationary contact 121 can be controlled. For example, the movement of the moving contact 131 can be controlled by an electromagnetic coil drive mechanism. When the electromagnetic coil drive mechanism receives a disconnection command, the electromagnetic coil drive mechanism operates to drive the first moving contact unit 13 to displace. In this way, control commands can be transmitted through low-voltage signals to achieve precise control of the movement trajectory of the moving contact 131.

[0059] Secondly, referring to Figure 5 , Figure 6 This application provides a contactor system, including a first contactor 1 and a second contactor 2. The first contactor 1 is any of the contactors described above. The second contactor 2 includes a second housing 21 and a second stationary contact unit 22 disposed at the end of the second housing 21. The first housing 11 of the first contactor 1 and the second housing 21 are arranged in the same direction, and the first housing 11 and the second housing 21 are each provided with a first stationary contact unit 12 and a second stationary contact unit 22 at the ends of the first housing 11 and the second housing 21 facing the same direction.

[0060] In this embodiment, the second contactor 2 can be configured with a conventional contactor structure. The second housing 21 of the second contactor 2 can be shaped according to actual needs. For example, the shape of the second housing 21 may be exactly the same as or partially different from that of the first housing 11. Similarly, the arrangement and specific structure of the second stationary contact unit 22 and the second moving contact unit 23 on the second contactor 2 can also be adaptively adjusted to meet usage requirements. When the first housing 11 and the second housing 21 are installed in the same direction, the first stationary contact unit 12 on the first housing 11 and the second stationary contact unit 22 on the second housing 21 are also arranged in the same direction. The operating direction of the first moving contact unit 13 inside the first contactor 1 is reversed through the adapter 14, while the second contactor 2 maintains forward operation.

[0061] This configuration ensures that, even when the first contactor 1 and the second contactor 2 are installed in the same external direction, the internal first moving contact unit 13 and the second moving contact unit 23 operate in opposite directions. For example, in a high-voltage distribution box, the high-voltage contacts of the first contactor 1 and the second contactor 2 both face outward in the same direction. When the first moving contact unit 13 of the first contactor 1 is subjected to vibration, it moves upward to disconnect, while the second moving contact unit 23 of the second contactor 2 moves downward to disconnect, thereby avoiding the risk of short circuit caused by simultaneous closure.

[0062] This configuration simplifies the assembly of the first contactor 1 and the second contactor 2, reduces the amount of connecting conductors required, facilitates connection with external connecting conductors, and eliminates the need for additional protective structures for insulation, thereby reducing production costs and improving assembly efficiency.

[0063] Optionally, the second housing 21 has a receiving cavity, and the second contactor 2 further includes a second moving contact unit 23 movably disposed in the receiving cavity. The second moving contact unit 23 can move along a first direction Z that is close to or away from the second stationary contact unit 22, and when the second moving contact unit 23 moves to a second position along the direction close to the second stationary contact unit 22, it can form a conductive contact with the second stationary contact unit 22.

[0064] In this embodiment, by setting the second moving contact unit 23 to the second position along the direction close to the second stationary contact unit 22, it can form a conductive contact with the second stationary contact unit 22. The second moving contact unit 23 inside the second housing 21 is designed to move in the opposite direction to the first contactor 1. When mechanical vibration is transmitted to the first contactor 1 and the second contactor 2, since the first moving contact unit 13 and the second moving contact unit 23 move in the same direction, they cannot reach the closed state at the same time, thereby effectively avoiding the synchronous closing of the first contactor 1 and the second contactor 2.

[0065] Thirdly, referring to Figure 4 This application provides a high-voltage distribution box, including the contactor system described above.

[0066] In this embodiment, the high-voltage distribution box has the aforementioned first contactor 1 and second contactor 2, which facilitates the production of the high-voltage distribution box and reduces production costs.

[0067] Optionally, the high-voltage distribution box includes a box body 3, and the first contactor 1 and the second contactor 2 are both disposed inside the box body 3, with the first stationary contact unit 12 and the second stationary contact unit 22 facing the bottom plate of the box body 3.

[0068] In this embodiment, the housing 3 serves as the mounting carrier for accommodating the first contactor 1 and the second contactor 2. It can be made of metal or engineering plastic and can be injection molded or die-cast to form a closed or semi-closed structure, providing fixed support and electrical isolation protection for the first contactor 1 and the second contactor 2. The first contactor 1 and the second contactor 2 can be installed in the housing 3 by bolt fixing or snap-fit ​​assembly, thereby keeping the first contactor 1 and the second contactor 2 stable in a vibration environment.

[0069] In this embodiment, the first contactor 1 and the second contactor 2 are installed in the same direction inside the housing 3, and the first stationary contact unit 12 and the second stationary contact unit 22 of both are uniformly facing the bottom plate of the housing 3. During the assembly process, the first contactor 1 and the second contactor 2 can be installed without flipping.

[0070] Fourthly, this application provides a carrier including the aforementioned high-voltage distribution box.

[0071] Optionally, the vehicle refers to the vehicle body of the new energy vehicle, which can be an electric vehicle or a hybrid vehicle. The vehicle's battery system is electrically connected to the high-voltage power distribution box. The vehicle achieves circuit safety control through an integrated and optimized high-voltage power distribution box.

[0072] Of course, in addition to the vehicles mentioned above, vehicles can also be configured as low-altitude aircraft.

[0073] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A contactor characterized by, include: The first housing (11) has a receiving cavity; The first stationary contact unit (12) is disposed at the end of the first housing (11); The first moving contact unit (13) is movably disposed in the receiving cavity. The first moving contact unit (13) can move toward or away from the first stationary contact unit (12) in the first direction (Z). The adapter (14) has a first contact end (141) and a second contact end (142) disposed opposite to each other. The first contact end (141) of the adapter (14) is electrically connected to the stationary contact (121) of the first stationary contact unit (12). The moving contact (131) of the first moving contact unit (13) is disposed between the first contact end (141) and the second contact end (142). When the first moving contact unit (13) moves in a direction away from the first stationary contact unit (12), it can make conductive contact with the second contact end (142) of the adapter (14).

2. The contactor of claim 1, wherein The adapter (14) includes one of an adapter copper busbar, an adapter wire, or a flexible conductive strip.

3. The contactor of claim 2, wherein, The first stationary contact unit (12) includes two stationary contacts (121), and the first moving contact unit (13) includes two moving contacts (131). The two stationary contacts (121) and the two moving contacts (131) are correspondingly arranged. When the two moving contacts (131) move, they can be electrically connected to the two stationary contacts (121) through the adapter (14).

4. The contactor of claim 3, wherein The moving contact (131) is annular, and a guide post (17) is provided in the receiving cavity. The moving contact (131) is sleeved on the guide post (17).

5. The contactor according to any one of claims 1 to 4, characterized in that A high-voltage sampling terminal (15) is provided on the first housing (11); And / or, a low-voltage control terminal (16) is provided on the first housing (11), and the low-voltage control terminal (16) is electrically connected to the first moving contact unit (13).

6. A contactor system characterized by, include: The first contactor (1) is the contactor according to any one of claims 1-5; The second contactor (2) includes a second housing (21) and a second stationary contact unit (22) disposed at the end of the second housing (21); The first housing (11) of the first contactor (1) is arranged in the same direction as the second housing (21), and the first housing (11) and the second housing (21) are provided with the first stationary contact unit (12) and the second stationary contact unit (22) on the ends of the first housing (11) and the second housing (21) facing the same direction.

7. The contactor system of claim 6, wherein, The second housing (21) has a receiving cavity, and the second contactor (2) further includes a second moving contact unit (23) movably disposed in the receiving cavity. The second moving contact unit (23) is capable of moving in a first direction (Z) toward or away from the second stationary contact unit (22), and when the second moving contact unit (23) moves to a second position in the direction toward the second stationary contact unit (22), it is capable of forming a conductive contact with the second stationary contact unit (22).

8. A high voltage distribution box characterized by, Includes the contactor system according to any one of claims 6-7.

9. The high-voltage distribution box of claim 8, wherein, The high-voltage distribution box includes a box body (3), and the first contactor (1) and the second contactor (2) are both disposed inside the box body (3), and the first stationary contact unit (12) and the second stationary contact unit (22) face the bottom plate of the box body (3).

10. A carrier, characterized by Includes the high-voltage distribution box as described in any one of claims 8-9.

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