Contact structure and change-over switch

Abstract

The utility model provides a contact structure and a change-over switch, and relates to the technical field of switches, the contact structure comprises a first static contact, a second static contact, a moving contact, a leading-out terminal and a driving assembly, the driving assembly is directly connected with the moving contact, so that the driving assembly directly drives the moving contact to rotate, the moving contact is in contact with the first static contact and the leading-out terminal, and the moving contact is in contact with the leading-out terminal. According to the driving mode, the number of required parts is greatly reduced, the occupied space is reduced, the transmission path is simplified, and the whole transmission process becomes simpler and more efficient. Besides, the driving assembly is arranged on one side of the rotating plane of the moving contact, the space utilization rate is optimized through the layout, the occupied space of the contact structure in the third direction of the moving contact is obviously reduced, the contact structure is more compact, more space is provided for arrangement of other assemblies, and the flexibility and practicability of the overall design are improved.

Description

Technical Field

[0001] The present application relates to the field of switch technology, and in particular to a contact structure and a conversion switch. Background Art

[0002] With the development of society, people's requirements for power grids and their transmission and distribution process are gradually increasing, mainly in terms of the safety, reliability, continuity, and easy maintenance of power supply equipment. Therefore, transfer switches with the above typical characteristics have been widely used in electrical systems in important places such as residential, commercial and industrial buildings. Transfer switches are mainly used in working occasions where two circuits are automatically switched. When one circuit of the power supply has problems or failures, it automatically switches the transmission and distribution line to another circuit for power supply, thereby realizing automatic switching of the two circuits and ensuring the continuity and stability of power consumption of key loads.

[0003] As the actuator of the transfer switch, the contact structure plays an important role in connecting and disconnecting the circuit and is one of the most important components of the transfer switch. The contact structure usually includes a static contact, a moving contact, a drive mechanism, a transmission mechanism, etc. There are many parts, the assembly process is cumbersome, and it takes up a large space. In addition, the drive mechanism usually needs to be driven by a transmission mechanism to drive the moving contact. The transmission process is relatively complicated and inefficient. If any component fails, the moving contact will fail to move, thereby causing the transfer switch to fail. Utility Model Content

[0004] The purpose of the present application is to provide a contact structure and a transfer switch to address the deficiencies in the above-mentioned prior art.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0006] According to one aspect of an embodiment of the present application, a contact structure is provided, including a first static contact, a second static contact, a moving contact, a lead-out terminal and a drive assembly, wherein the drive assembly is directly connected to the moving contact, and the drive assembly is used to directly drive the moving contact to rotate so that the moving contact switches between contacting with the first static contact and the lead-out terminal, or contacting with the second static contact and the lead-out terminal, and the drive assembly is located on one side of the rotation plane of the moving contact.

[0007] Optionally, the lead-out terminal, the moving contact, the first stationary contact and the second stationary contact are arranged in sequence along a first direction, and the driving assembly and the moving contact are arranged along a second direction perpendicular to the first direction.

[0008] Optionally, the driving assembly includes a motor and a rotating shaft drivingly connected to the motor, the rotating shaft is directly connected to the moving contact, and the motor drives the moving contact to rotate via the rotating shaft.

[0009] Optionally, the driving assembly includes a magnetic driving member and a connecting rod, one end of the connecting rod is rotatably connected to the magnetic driving member, and the other end of the connecting rod is rotatably connected to the moving contact, and the magnetic driving member drives the moving contact to rotate via the connecting rod.

[0010] Optionally, the magnetic drive component includes a coil, a static iron core and a moving iron core, the coil is wound around the static iron core, the moving iron core is movably inserted through the static iron core, and the moving iron core moves toward or away from the static iron core to drive the connecting rod to move.

[0011] Optionally, the moving direction of the moving iron core is perpendicular to the second direction.

[0012] Optionally, the magnetic drive component, the connecting rod, and the first static contact are arranged in sequence along the first direction.

[0013] Optionally, the contact structure further includes a contact bracket for supporting the moving contact, the contact bracket is fixedly connected to the moving contact, and the drive assembly is directly connected to the contact bracket.

[0014] Optionally, the number of the first stationary contact, the second stationary contact and the lead-out terminal is one, and the moving contact contacts the first stationary contact and the lead-out terminal, or contacts the second stationary contact and the lead-out terminal to form a single circuit.

[0015] According to another aspect of an embodiment of the present application, a switching switch is provided, comprising a housing and any one of the above-mentioned contact structures, wherein the contact structure is disposed in the housing.

[0016] Optionally, a partition is provided in the shell to separate the shell into a first chamber and a second chamber, the first static contact, the second static contact, the moving contact and the lead-out end of the contact structure are located in the first chamber, and the driving assembly of the contact structure is located in the second chamber.

[0017] The beneficial effects of this application include:

[0018] The present application provides a contact structure, including a first static contact, a second static contact, a moving contact, a lead-out terminal and a drive assembly, wherein the drive assembly is directly connected to the moving contact, and the drive assembly is used to directly drive the moving contact to rotate, so that the moving contact switches between contacting with the first static contact and the lead-out terminal, or contacting with the second static contact and the lead-out terminal, and the drive assembly is located on one side of the rotation plane of the moving contact. The present application directly connects the drive assembly to the moving contact, so that the drive assembly directly drives the moving contact to rotate, so as to realize the switching and matching function of the moving contact between contacting with the first static contact and the lead-out terminal, or contacting with the second static contact and the lead-out terminal. This driving method greatly reduces the number of required parts, reduces space occupation, simplifies the transmission path, and makes the entire transmission process simpler and more efficient. In addition, this simplified connection relationship makes operation more reliable and maintenance more convenient. In addition, the drive assembly is arranged on one side of the rotating plane of the moving contact. This layout optimizes space utilization, significantly reduces the space occupied by the contact structure along the third direction of the moving contact, makes the contact structure more compact, and provides more space for the arrangement of other components, thereby improving the flexibility and practicality of the overall design. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 One of the structural schematic diagrams of a contact structure provided in an embodiment of the present application;

[0021] Figure 2 for Figure 1 A top view of

[0022] Figure 3 A second structural schematic diagram of a contact structure provided in an embodiment of the present application;

[0023] Figure 4 One of the exploded views of a contact structure provided in an embodiment of the present application;

[0024] Figure 5 A third structural schematic diagram of a contact structure provided in an embodiment of the present application;

[0025] Figure 6 for Figure 5 A top view of

[0026] Figure 7 A fourth structural schematic diagram of a contact structure provided in an embodiment of the present application;

[0027] Figure 8 A second exploded view of a contact structure provided in an embodiment of the present application;

[0028] Fig. 9 This is a fifth structural schematic diagram of a contact structure provided in an embodiment of the present application.

[0029] Icon: 10a-first stationary contact; 10b-second stationary contact; 10c-lead end; 20-moving contact; 30-driving assembly; 31-motor; 32-rotating shaft; 33-magnetic driving component; 331-coil; 332-moving iron core; 34-connecting rod; 40-partition; 50-contact bracket; x-first direction; y-second direction; z-third direction. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. It should be noted that, in the absence of conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the scope of protection of the present application.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In this digital age, people are becoming more and more dependent on electricity. Whether it is home, industry or business, a stable and reliable power supply is essential. Among them, the transfer switch can automatically switch to another circuit when one circuit fails, thereby realizing automatic circuit switching and ensuring the normal operation of the equipment. Therefore, it is often used in important power distribution occasions.

[0037] Among them, the contact structure, as the core actuator of the transfer switch, plays a vital role in the connection and disconnection of the circuit and is one of the most critical components in the transfer switch system. A typical contact structure is usually composed of multiple components such as a static contact, a moving contact, a drive mechanism and a transmission mechanism. There are many of these parts, and the assembly process is cumbersome and complicated, and it also takes up a large space. In addition, the drive mechanism usually relies on the transmission mechanism to drive the moving contact. This transmission process is not only complicated, but also inefficient. What's more serious is that if any component fails, it will directly cause the moving contact to fail to operate normally, thereby causing the failure of the entire transfer switch system.

[0038] Therefore, the embodiment of the present application provides a contact structure, which can be used in a conversion switch. Specifically, the contact structure includes a first static contact 10a, a second static contact 10b and a moving contact 20. The first static contact 10a and the second static contact 10b are usually fixedly installed in the housing of the conversion switch, and the moving contact 20 is movably installed in the housing of the conversion switch. The moving contact 20 is driven to switch and cooperate with the first static contact 10a and the second static contact 10b to achieve automatic switching between two circuits. Of course, the present application does not limit the movable installation method of the moving contact 20. For example, it can be rotatably installed in the housing of the conversion switch, or it can be slidably installed in the housing of the conversion switch. For ease of understanding, the following schematic description is taken as an example of the rotation of the moving contact 20.

[0039] Specifically, Figures 1 to 9 As shown, a moving contact 20, a first stationary contact 10a connected to the first circuit, a second stationary contact 10b connected to the second circuit, and a lead-out terminal 10c connected to the load end are arranged in the conversion switch, wherein the lead-out terminal 10c and the first stationary contact 10a and the second stationary contact 10b are arranged on opposite sides of the moving contact 20 along the first direction x, and the first stationary contact 10a and the second stationary contact 10b are arranged on opposite sides of the moving contact 20 along the third direction z perpendicular to the first direction x. The drive assembly 30 is directly connected to the moving contact 20. When the first circuit needs to work, the moving contact 20 is directly driven by the drive assembly 30 to rotate until both ends contact with the first static contact 10a and the lead-out terminal 10c to close the circuit, so that the circuit is connected; when the second circuit needs to work, the moving contact 20 is directly driven by the drive assembly 30 to rotate until both ends contact with the second static contact 10b and the lead-out terminal 10c to close the circuit. Thus, the automatic switching between the two circuits can be ensured by switching between the moving contact 20 and the two static contacts. This driving method greatly reduces the number of required components, reduces space occupancy, simplifies the transmission path, and makes the entire transmission process simpler and more efficient. In addition, this simplified connection relationship makes operation more reliable and maintenance more convenient. In addition, the drive assembly 30 is arranged on one side of the rotation plane of the moving contact 20. This layout optimizes space utilization and significantly reduces the space occupied by the contact structure along the extension direction of the rotation plane of the moving contact 20, that is, the third direction z, making the contact structure more compact and providing more space for the arrangement of other components, thereby improving the flexibility and practicality of the overall design.

[0040] In general, the optimized design of the contact structure significantly improves the operating efficiency and reliability of the transfer switch. By reducing the number of parts and simplifying the transmission process, it not only reduces the probability of failure, but also simplifies the maintenance process of the transfer switch. In addition, the optimized space layout makes the entire transfer switch more compact, which helps to achieve higher space utilization and further improves the overall performance of the transfer switch.

[0041] Optionally, the number of the first stationary contact 10a, the second stationary contact 10b and the lead-out terminal 10c is one, and the movable contact 20 contacts the first stationary contact 10a and the lead-out terminal 10c, or contacts the second stationary contact 10b and the lead-out terminal 10c to form a single circuit. The number of the first stationary contact 10a, the second stationary contact 10b and the lead-out terminal 10c can also be multiple to form multiple circuits.

[0042] Alternatively, if Figure 2As shown, the lead-out terminal 10c, the moving contact 20, the first static contact 10a and the second static contact 10b are arranged in sequence along the first direction x, so that the switching process between the moving contact 20 contacting with the first static contact 10a and the lead-out terminal 10c, or contacting with the second static contact 10b and the lead-out terminal 10c is smoother, ensuring the reliability and stability of the circuit, and providing a basis for the normal operation of the conversion switch. The drive component 30 is arranged with the moving contact 20 along the second direction y perpendicular to the first direction x, wherein the first direction x, the second direction y and the third direction z are perpendicular to each other. As a result, on the one hand, the dimensions of the conversion switch in different dimensions are matched, so that the overall spatial arrangement is more neat and reasonable, and the space occupation is minimized. On the other hand, it provides a more convenient condition for the connection between the drive component 30 and the moving contact 20, which helps to simplify the transmission process between the drive component 30 and the moving contact 20, and improves the response speed and operation efficiency of the conversion switch.

[0043] Alternatively, if Figure 4 As shown, the drive assembly 30 includes a motor 31 and a rotating shaft 32 drivingly connected to the motor 31. The core of this structural design lies in direct connection and direct drive. The motor 31 of the drive assembly 30 provides power, and the rotating shaft 32 of the drive assembly 30 serves as a medium for transmitting power. The rotating shaft 32 is directly connected to the moving contact 20, so that the motor 31 drives the rotating shaft 32 to rotate, and the rotating shaft 32 drives the moving contact 20 to rotate synchronously, thereby realizing the direct drive of the moving contact 20 by the drive assembly 30. This direct transmission relationship simplifies the traditional transmission structure, reduces the risk of looseness and failure in the transmission gear or chain, reduces the energy loss and friction that may exist in the transmission process, and ensures the efficiency and reliability of the drive.

[0044] Alternatively, if Figures 5 to 7 As shown, the drive assembly 30 includes a magnetic drive member 33 and a connecting rod 34, one end of the connecting rod 34 is rotatably connected to the magnetic drive member 33, and the other end of the connecting rod 34 is rotatably connected to the moving contact 20, so as to realize that the linear motion of the magnetic drive member 33 is converted into the rotational motion of the moving contact 20 via the connecting rod 34. Through the design of the connecting rod 34, the linear motion of the magnetic drive member 33 can be effectively transmitted to the moving contact 20, thereby realizing direct driving of the moving contact 20. Specifically, the two ends of the connecting rod 34 are respectively hinged to the magnetic drive member 33 and the moving contact 20. This design ensures a tight connection between the drive assembly 30 and the moving contact 20, and ensures that the driving force of the magnetic drive member 33 can be effectively transmitted to the moving contact 20, thereby realizing precise control of the moving contact 20. This direct connection relationship improves the stability and reliability of the drive, and also reduces the risk of failure of the switching switch.

[0045] Alternatively, if Figure 8As shown, the magnetic drive member 33 includes a coil 331, a static iron core and a moving iron core 332. The coil 331 is wound on the static iron core, and the moving iron core 332 is movably inserted into the static iron core. Such a design enables the generation and change of the magnetic field to control the position and movement direction of the moving iron core 332. In addition, the magnetic drive member 33 also includes a reset spring arranged in the static iron core, which ensures the stable conversion of the moving contact 20 between different static contacts, thereby meeting the needs of circuit switching.

[0046] Specifically, in the initial state, the moving contact 20 is closed with the first static contact 10a, and the first circuit is connected. At this time, the coil 331 is not connected, the static iron core does not generate electromagnetic attraction, and the moving iron core 332 is located away from the static iron core. When it is necessary to switch to the second circuit, the coil 331 is energized, the static iron core generates electromagnetic attraction, and the moving iron core 332 is attracted. The moving iron core 332 moves in the direction close to the static iron core, and the connecting rod 34 drives the moving contact 20 to rotate, so that the moving contact 20 switches from closing with the first static contact 10a to closing with the second static contact 10b. At this time, the reset spring is deformed by the extrusion force of the moving iron core 332. When it is necessary to switch to the first circuit again, the coil 331 is de-energized, and the static iron core does not generate electromagnetic attraction. At this time, the moving iron core 332 moves in the direction away from the static iron core under the reset force of the reset spring. The moving contact 20 is driven to rotate in the opposite direction by the connecting rod 34, and switches again from closing with the second stationary contact 10b to closing with the first stationary contact 10a. During this switching process, the magnetic drive 33 controls the moving iron core 332 by turning on and off the coil 331, and the connecting rod 34 converts the linear motion of the moving iron core 332 into the rotation of the moving contact 20, thereby completing the switching of the circuit.

[0047] Alternatively, if Figure 6 As shown, the movement direction of the moving iron core 332 is perpendicular to the second direction y. Specifically, the moving iron core 332 can slide along the first direction x or along the third direction z. The sliding direction depends on the position of the static iron core. The moving iron core 332 always moves in the direction close to or away from the static iron core. At this time, the magnetic drive component 33 and the moving contact 20 can be staggered along the second direction y to leave enough space for the movement of the connecting rod 34 and the moving iron core 332. Such a design brings multiple advantages. First of all, this staggered arrangement makes the transmission path simpler and more direct, reduces the complexity of the structure, and improves the reliability and stability of the entire system. At the same time, the space required for the movement of the connecting rod 34 and the moving iron core 332 is fully guaranteed, ensuring the smooth transmission between the drive assembly 30 and the moving contact 20.

[0048] Optionally, the connecting rod 34 needs to be directly connected to the moving contact 20 so that the moving contact 20 can be directly driven to rotate to open and close with the static contact. Therefore, for the convenience of connection, the connecting rod 34 should be arranged close to the moving contact 20, and the magnetic drive member 33 is arranged on either side of the connecting rod 34 along the first direction x. In addition, since the first static contact 10a and the second static contact 10b are located on the same side of the moving contact 20, and the lead-out terminal 10c is located on the other opposite side of the moving contact 20, the free space available on the other opposite side of the moving contact 20 is larger. In order to reasonably use the space, it is preferred to set the magnetic drive member 33 on the side of the connecting rod 34 close to the lead-out terminal 10c along the first direction x to make the overall layout more reasonable, make full use of the space and reduce the overall volume, that is, the magnetic drive member 33, the connecting rod 34, and the first static contact 10a are arranged in sequence along the first direction x.

[0049] Alternatively, if Figure 4 and Figure 8 As shown, in order to fix the moving contact 20, a contact bracket 50 for supporting the moving contact 20 can be provided so that it can remain stable during rotation. A through hole for the moving contact 20 to pass through is provided in the contact bracket 50, and both ends of the moving contact 20 extend out of the contact bracket 50, and the moving contact 20 is fixedly supported in the contact bracket 50. The driving assembly 30 is directly connected to the contact bracket 50, for example, the rotating shaft 32 is directly connected to the contact bracket 50, or one end of the connecting rod 34 is hinged to the contact bracket 50 to rotate the contact bracket 50, thereby driving the moving contact 20 to rotate. Through such a design, the moving contact 20 can be firmly fixed in the contact bracket 50, and the movement of the driving assembly 30 directly affects the rotation of the contact bracket 50, thereby affecting the movement of the moving contact 20, so as to achieve the closing or opening of the moving contact 20 and the static contact.

[0050] Optionally, the contact structure can be a clamping contact structure. In this case, clamping grooves for clamping the static contact need to be formed at both ends of the moving contact 20, and the thickness of the clamping groove matches the thickness of the static contact. Thus, when the contact structure is in a closed state, the static contact is located in the clamping groove, and the two sides of the static contact are respectively in contact with the two inner wall surfaces of the clamping groove to ensure that the circuit can be connected.

[0051] The embodiment of the present application also provides a transfer switch, including a housing and any of the above-mentioned contact structures, wherein the contact structure is arranged inside the housing, ensuring that the structure of the entire switch is compact, safe and reliable. The design of the housing provides an external environment for protecting the contact structure, preventing the contact from being interfered with or damaged by the outside. Since the transfer switch adopts the above-mentioned contact structure, it also has the same beneficial effects as the contact structure, which will not be described in detail here.

[0052] Alternatively, if Fig. 9As shown, a partition 40 is provided in the housing to separate the housing into a first chamber and a second chamber. The first static contact 10a, the second static contact 10b, the moving contact 20 and the lead-out terminal 10c of the contact structure are located in the first chamber, and the drive assembly 30 of the contact structure is located in the second chamber. By providing the partition 40, the drive assembly 30 and the contact assembly are effectively isolated in space to prevent interference and collision between them, thereby improving the stability and reliability of the system. At the same time, this separated installation also makes the layout of each component clearer and more orderly, which is convenient for maintenance and repair. In addition, the partition 40 is also used to install the contact assembly and the drive assembly 30 to provide a stable support base.

[0053] The embodiment of the present application also provides a power distribution device, which is equipped with the aforementioned transfer switch, and the power distribution device can be equipped with at least one of the following: a distribution box, a cable, a distribution cabinet, a motor, a switch socket, a lamp, an air conditioner, an electric water heater, an electric meter, a camera, a telephone, a computer, etc. Such power distribution equipment can use the relevant structure of the transfer switch of the present application to realize intelligent management, but is not limited to the above intelligently managed power distribution equipment, and can also be used in non-intelligent power distribution equipment in traditional industries.

[0054] An embodiment of the present application also provides a power distribution device, in which the aforementioned conversion switch is applied to the power distribution device. The power distribution device can be used in smart scenarios, intelligent usage scenarios and the Internet of Things industry to achieve intelligent scenario management.

[0055] Optionally, the embodiments of the present application can be used for: fire-fighting electricity: fire control room, fire pumps, smoke exhaust facilities, fire elevators and their drainage pumps, fire emergency lighting, etc. at level one; corridor lighting, duty lighting, guard lighting, obstacle sign lights; rail transit; security system power supply; electronic information room power supply; passenger elevator power; sewage pump; variable frequency speed regulation constant pressure water supply and domestic pump (otherwise a secondary load); main offices, conference rooms, general duty room, archives room.

[0056] The embodiment of the present application also provides an energy storage system, in which the aforementioned conversion switch is applied to the energy storage system. The energy storage system generally includes components such as a battery pack, an inverter, and a charge and discharge controller. As a key component of the control circuit, the conversion switch can realize precise control of the connection between these components and the opening and closing of the circuit. Applying the conversion switch to the energy storage system can realize efficient management and control of energy, providing key support for the stable operation and performance optimization of the energy storage system.

[0057] Optionally, the transfer switch can be used to connect or disconnect the circuit between the battery pack and the inverter to achieve control of the charging or discharging process. Through the appropriate contact assembly design and the drive assembly 30, the transfer switch can connect the battery pack to the inverter when needed, thereby converting the stored energy into electricity to supply to the external system, or switch to the second circuit when not needed and not use the battery pack to achieve control of the battery pack.

[0058] Optionally, the conversion switch can realize the regulation and optimization of the internal circuit of the energy storage system. By properly designing the contact assembly and the drive assembly 30, the conversion switch can realize the switching and connection between multiple circuits in the energy storage system, realize the distribution and regulation of electric energy, thereby improving the energy utilization and operation efficiency of the system.

[0059] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A contact structure, characterized in that: The invention comprises a first stationary contact (10a), a second stationary contact (10b), a moving contact (20), a lead-out terminal (10c) and a driving component (30); the driving component (30) is directly connected to the moving contact (20); the driving component (30) is used to directly drive the moving contact (20) to rotate, so that the moving contact (20) switches between contacting with the first stationary contact (10a) and the lead-out terminal (10c), or contacting with the second stationary contact (10b) and the lead-out terminal (10c); the driving component (30) is located on one side of the rotation plane of the moving contact (20).

2. The contact structure according to claim 1, characterized in that: The lead-out terminal (10c), the moving contact (20), the first stationary contact (10a), and the second stationary contact (10b) are arranged in sequence along a first direction (x), and the drive assembly (30) and the moving contact (20) are arranged along a second direction (y) perpendicular to the first direction (x).

3. The contact structure according to claim 1 or 2, characterized in that: The driving assembly (30) comprises a motor (31) and a rotating shaft (32) drivingly connected to the motor (31); the rotating shaft (32) is directly connected to the moving contact (20); and the motor (31) drives the moving contact (20) to rotate via the rotating shaft (32).

4. The contact structure according to claim 2, characterized in that: The driving assembly (30) comprises a magnetic driving component (33) and a connecting rod (34); one end of the connecting rod (34) is rotatably connected to the magnetic driving component (33); the other end of the connecting rod (34) is rotatably connected to the moving contact (20); and the magnetic driving component (33) drives the moving contact (20) to rotate via the connecting rod (34).

5. The contact structure according to claim 4, characterized in that: The magnetic drive component (33) comprises a coil (331), a static iron core and a moving iron core (332); the coil (331) is wound around the static iron core; the moving iron core (332) is movably inserted through the static iron core; the moving iron core (332) moves in a direction approaching or away from the static iron core to drive the connecting rod (34) to move.

6. The contact structure according to claim 5, characterized in that: The moving direction of the moving iron core (332) is perpendicular to the second direction (y).

7. The contact structure according to any one of claims 4 to 6, characterized in that: The magnetic drive component (33), the connecting rod (34), and the first stationary contact (10a) are arranged in sequence along the first direction (x).

8. The contact structure according to any one of claims 1, 2, 4 to 6, characterized in that: The contact structure further comprises a contact support (50) for supporting the moving contact (20), the contact support (50) being fixedly connected to the moving contact (20), and the drive assembly (30) being directly connected to the contact support (50); The number of the first stationary contact (10a), the second stationary contact (10b) and the lead-out terminal (10c) is one, and the moving contact (20) contacts the first stationary contact (10a) and the lead-out terminal (10c), or contacts the second stationary contact (10b) and the lead-out terminal (10c) to form a single circuit.

9. A transfer switch, characterized in that: The invention comprises a housing and a contact structure according to any one of claims 1 to 8, wherein the contact structure is arranged in the housing.

10. The transfer switch according to claim 9, characterized in that: A partition (40) is provided in the shell to separate the shell into a first chamber and a second chamber; the first stationary contact (10a), the second stationary contact (10b), the moving contact (20) and the lead-out terminal (10c) of the contact structure are located in the first chamber, and the driving component (30) of the contact structure is located in the second chamber.

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