Contact mechanism and load switch

Abstract

The utility model provides a contact mechanism and a load switch, and relates to the technical field of low-voltage electrical appliances, the contact mechanism comprises a static contact, a moving contact, a driving assembly and a transmission assembly, the transmission assembly comprises a first transmission part and a second transmission part which are connected through a connecting rod, the driving assembly is in driving connection with the first transmission part, and the second transmission part is in driving connection with the moving contact. The driving assembly drives the first transmission part and the second transmission part to move so as to drive the moving contact and the static contact to be switched on or switched off. According to the contact mechanism, through reasonable arrangement of all the parts, efficient combination of driving and transmission is achieved, meanwhile, occupied space is greatly reduced, the applicability of the contact mechanism in electrical equipment with the limited size can be effectively improved, and the increasing requirement for compact and efficient electrical equipment at present is met.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to a contact mechanism and a load switch. Background Art

[0002] A load switch is a switch used to control a circuit. It is mainly used to control the electrical load in the circuit and has the following important functions: (1) The load switch can conveniently cut off or connect the load in the circuit to realize the switch control of the load. By operating the load switch, the load can be connected or disconnected from the power supply. (2) The load switch can quickly cut off the power supply when the load fails or needs maintenance, thereby protecting the load equipment from damage or danger. (3) The load switch can flexibly control the use time and working status of the load to achieve the purpose of saving energy. For example, when a certain device is not needed, unnecessary energy consumption can be avoided by turning off the load switch. (4) The load switch acts as a circuit breaker in the circuit. When the circuit has abnormal conditions such as short circuit or overload, the load switch can quickly cut off the power supply to avoid accidents and improve the safety of the circuit. Therefore, load switches are widely used in power systems, industrial production, building facilities and other fields.

[0003] The load switch mainly includes a static contact, a moving contact and a driving mechanism, and the driving mechanism drives the moving contact to realize the opening and closing of the moving contact and the static contact. However, the driving connection structure of the driving mechanism and the moving contact in the prior art is relatively complex, occupies a large space, and is difficult to be applied to small electrical appliances. Utility Model Content

[0004] The purpose of this application is to provide a contact mechanism and a load switch to address the deficiencies in the above-mentioned technology.

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

[0006] An embodiment of the present application provides a contact mechanism, including a static contact, a moving contact, a drive assembly and a transmission assembly, the transmission assembly including a first transmission member and a second transmission member connected by a connecting rod, the drive assembly is drive-connected to the first transmission member, the second transmission member is drive-connected to the moving contact, and the drive assembly drives the first transmission member and the second transmission member to move to drive the moving contact and the static contact to close or open.

[0007] Optionally, the driving assembly has first teeth, and the first transmission member has second teeth meshing with the first teeth.

[0008] Optionally, the driving component has a clamping groove and the first transmission member has a protrusion, or the first transmission member has a clamping groove and the driving component has a protrusion; the clamping groove is used to clamp the protrusion to drive the first transmission member to move.

[0009] Optionally, the contact mechanism further includes a drive system, and the drive system is used to drive the drive component to perform linear motion or swing motion.

[0010] Optionally, the contact mechanism further includes a first mounting shaft, the moving contact and the second transmission member are rotatably mounted on the first mounting shaft respectively, and the driving assembly drives the second transmission member to rotate around the first mounting shaft via the first transmission member to drive the moving contact to rotate around the first mounting shaft.

[0011] Optionally, the contact mechanism further includes a micro switch, which is arranged in cooperation with the transmission assembly, and the micro switch is used to output an electrical signal representing the closing or opening of the moving contact and the static contact according to the position of the transmission assembly.

[0012] Optionally, the contact mechanism further includes a micro switch, which is arranged in cooperation with the drive assembly, and the micro switch is used to output an electrical signal representing the closing or opening of the moving contact and the static contact according to the position of the drive assembly.

[0013] Optionally, the contact mechanism further comprises an elastic member, one end of the elastic member abuts against the moving contact, and the other end of the elastic member abuts against the second transmission member.

[0014] Optionally, the end of the moving contact facing away from the static contact has a first convex portion, the second transmission member has a second convex portion, one end of the elastic member abuts against the first convex portion, and the other end of the elastic member abuts against the second convex portion.

[0015] Optionally, the contact mechanism further includes a soft connector, which is connected to the first protrusion.

[0016] An embodiment of the present application further provides a load switch, comprising a housing and any one of the above-mentioned contact mechanisms, wherein the contact mechanism is installed in the housing.

[0017] An embodiment of the present application also provides a smart electric meter, comprising any of the above-mentioned load switches.

[0018] The beneficial effects of this application include:

[0019] The present application provides a contact mechanism and a load switch, including a static contact, a moving contact, a drive assembly and a transmission assembly, wherein the transmission assembly includes a first transmission member and a second transmission member connected by a connecting rod, the drive assembly is connected to the first transmission member by driving, the second transmission member is connected to the moving contact by driving, and the drive assembly drives the first transmission member and the second transmission member to move, so as to drive the moving contact and the static contact to close or open. The present application realizes the movement of the first transmission member under the action of the drive assembly by driving the drive assembly to the first transmission member. At the same time, the first transmission member and the second transmission member are connected by designing a connecting rod, so as to realize stable and efficient power transmission in a limited space. Among them, the first transmission member becomes an important intermediate medium, which can transmit the driving force from the drive assembly to the second transmission member, so as to drive the second transmission member to move. In addition, the second transmission member is connected to the moving contact by driving, so as to further realize the coordinated movement of the contact mechanism. The movement of the second transmission member successfully drives the corresponding movement of the moving contact through this connection mechanism, and finally realizes the closing or opening operation of the moving contact and the static contact, so as to control the on-off state of the circuit.

[0020] In general, through the reasonable arrangement of various components, the contact mechanism of the present application realizes an efficient combination of drive and transmission, while greatly reducing the space occupied. This design can effectively improve the applicability of the contact mechanism in electrical equipment with limited volume, and meet the growing demand for compact and efficient electrical equipment today. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 One of the structural schematic diagrams of a contact mechanism provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the structure of another contact mechanism provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of a structure of a driving connection between a driving assembly and a transmission assembly provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of another structure of a driving connection between a driving assembly and a transmission assembly provided in an embodiment of the present application;

[0026] Figure 5A second structural schematic diagram of another contact mechanism provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of the structure of a load switch provided in an embodiment of the present application;

[0028] Figure 7 A schematic diagram of the structure of another load switch provided in an embodiment of the present application.

[0029] Icons: 10-contact mechanism; 100-static contact; 200-moving contact; 210-first convex portion; 300-driving assembly; 310-driving shaft; 311-first tooth; 320-swinging member; 321-clamping groove; 322-extension portion; 400-transmission assembly; 410-first transmission member; 411-second tooth; 412-protrusion; 420-second transmission member; 421-second convex portion; 430-connecting rod; 500-first mounting shaft; 600-micro switch; 610-action reed; 700-elastic member; 800-soft connector; 20-housing. 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, not all of the embodiments. 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.

[0031] In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] 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.

[0033] As a key electrical component, load switches are widely used in various fields, and their application in smart meters is particularly eye-catching. Through the introduction of load switches, smart meters can achieve precise control, remote operation and intelligent management of power loads, improve the efficiency of power monitoring and management, and provide strong support for the modernization and intelligence of power systems.

[0034] However, although the load switch has a wide range of application prospects in the fields of smart meters, the current challenges are mainly concentrated in the design of the load switch, especially in the driving of the contact mechanism 10. In the current technology, the connection structure between the driving mechanism and the moving contact 200 is relatively complex, which brings a series of problems, especially in terms of space occupation and applicability, making it difficult to fully adapt to electrical equipment with limited volume.

[0035] In order to solve the above problems, the present application embodiment provides a contact mechanism 10, such as Figure 1 or Figure 2 As shown, the contact mechanism 10 includes a stationary contact 100, a moving contact 200, a drive assembly 300 and a transmission assembly 400, and the transmission assembly 400 includes a first transmission member 410 and a second transmission member 420 connected via a connecting rod 430. By driving the drive assembly 300 and the first transmission member 410, the first transmission member 410 is moved under the action of the drive assembly 300. At the same time, the first transmission member 410 and the second transmission member 420 are connected by designing the connecting rod 430, thereby realizing stable and efficient power transmission in a limited space. Among them, the first transmission member 410 becomes an important intermediate medium, which can transmit the driving force from the drive assembly 300 to the second transmission member 420, thereby driving the second transmission member 420 to move. In addition, the second transmission member 420 is driven and connected to the moving contact 200, further realizing the coordinated movement of the contact mechanism 10. The movement of the second transmission member 420 successfully drives the corresponding movement of the moving contact 200 through this connection mechanism, and finally realizes the closing or opening operation of the moving contact 200 and the static contact 100, thereby controlling the on-off state of the circuit.

[0036] In general, through the reasonable arrangement of various components, the contact mechanism 10 achieves an efficient combination of drive and transmission, while greatly reducing space occupation. This design can effectively improve the applicability of the contact mechanism 10 in electrical equipment with limited volume, meeting the growing demand for compact and efficient electrical equipment today.

[0037] It should be noted that the number of moving contacts 200 and static contacts 100 is an important parameter in the design of the contact mechanism 10, which depends on the specific electrical system requirements and application scenarios. Different numbers of contacts can achieve different electrical connection configurations to meet the specific requirements of the system. When only a simple single-circuit connection is required in the electrical system, a single moving contact 200 and a single static contact 100 can be selected. This design is suitable for some basic circuit configurations, such as switches, circuit breakers, etc. For systems that need to achieve dual-circuit or dual-power switching, a design of double moving contacts 200 and double static contacts 100 can be selected. This configuration is usually used in occasions with high requirements for power switching to improve the reliability and safety of the system. In some large electrical systems, more circuit connection points may be required, so a multi-contact design can be adopted. The multi-contact configuration can flexibly meet the requirements of complex systems such as multi-circuit and multi-power switching. Therefore, the selection of the number of contacts should comprehensively consider factors such as the complexity, functional requirements, and safety of the electrical system to meet the requirements of specific application scenarios.

[0038] Optionally, the contact mechanism 10 also includes a drive system, which can be a motor, an electromagnetic drive system or other parts that can provide power. Among them, when the drive system selects an electromagnetic drive system, its main components include coils and permanent magnets. After being energized, the electromagnetic drive system can drive the drive component 300 to perform linear motion or swing motion, thereby driving the movement of the transmission component 400, and then driving the moving contact 200 and the static contact 100 to realize the opening and closing operation, quickly and reliably cutting off the circuit to ensure the safety of the circuit.

[0039] Alternatively, if Figure 3 As shown, the drive assembly 300 is a drive shaft 310, and a first tooth 311 is provided at one end of the drive shaft 310 close to the first transmission member 410, and the first transmission member 410 has a second tooth 411 meshing with the first tooth 311. The end of the drive shaft 310 away from the first transmission member 410 is inserted into the electromagnetic drive system for drive connection, and when the electromagnetic drive system is powered on, the drive shaft 310 is driven to move linearly along its length direction. In this process, the end of the drive shaft 310 close to the transmission assembly 400 is provided with a first tooth 311, and the second tooth 411 on the first transmission member 410 is meshed with it. This meshing mechanism ensures that the power generated by the electromagnetic drive system can be effectively transmitted to the first transmission member 410, and the movement of the drive shaft 310 will directly drive the action of the first transmission member 410. Subsequently, the first transmission member 410 cooperates with the second transmission member 420 to drive the moving contact 200 and the static contact 100 to close or open the switch. This continuous driving process, under the control of the drive system, realizes the reliable operation of the load switch, allowing the circuit to quickly switch to the appropriate state.

[0040] In general, the design of the drive shaft 310 is relatively simple and occupies less space, while the meshing mechanism of the first tooth 311 and the second tooth 411 improves the driving efficiency, making the driving process more stable and reliable. This unique design not only solves the complexity and space occupation problems in the traditional driving structure, but also realizes the efficient transmission of driving energy, providing a more feasible solution for the application of load switches.

[0041] In another possible embodiment, as Figure 4 As shown, the drive assembly 300 is a swing member 320, and a clamping groove 321 is directly set on the side of the swing member 320 close to the first transmission member 410, and a protrusion 412 is set on the first transmission member 410, or a clamping groove 321 is set on the side of the first transmission member 410 close to the swing member 320, and a protrusion 412 is set on the swing member 320, which is not limited here. This ingenious design realizes a simple and efficient driving mechanism through the matching relationship between the clamping groove 321 and the protrusion 412. When the electromagnetic drive system is powered on, it will drive the swing member 320 to swing left and right, and then the movement of the first transmission member 410 can be directly driven through the matching relationship between the clamping groove 321 and the protrusion 412. Subsequently, the first transmission member 410 cooperates with the second transmission member 420 to push the moving contact 200 and the static contact 100 to close or open the switch.

[0042] In this design, the setting of the clamping groove 321 provides a tight and reliable connection and power transmission method for the drive assembly 300 and the first transmission member 410. By adjusting the shape and size of the clamping groove 321, the movement of the drive system can be precisely controlled. The protrusion 412 is set on the first transmission member 410, and can easily cooperate with the clamping groove 321 to form a reliable transmission mechanism. The design of the clamping groove 321 and the protrusion 412 not only simplifies the traditional gear transmission structure, but also reduces the volume and complexity of the system. This is of great significance for electrical equipment with limited space, such as smart meters. In addition, through the precise matching of the clamping groove 321 and the protrusion 412, the stability and reliability of the transmission can also be improved, ensuring that the load switch can accurately achieve the closing or opening operation under different working conditions.

[0043] Overall, this innovative design introduces a simpler and more compact solution for the construction of the drive mechanism, providing a more flexible and reliable solution for the application of load switches. This design is expected to further promote the development of load switch technology and make it better adaptable to different application requirements.

[0044] Alternatively, if Figure 5As shown, the contact mechanism 10 also includes a first mounting shaft 500, which acts as a fixed bearing structure. Through its stable installation, the movable contact 200 and the second transmission member 420 are effectively supported and fixed. The movable contact 200 and the second transmission member 420 are respectively rotatably mounted on the first mounting shaft 500, forming a relatively fixed but rotatable assembly. The movement of the first transmission member 410 is driven by the drive assembly 300, forming the initial power source of the contact mechanism 10. Through the connection of the connecting rod 430, the movement of the first transmission member 410 can be effectively transmitted to the second transmission member 420, so that the second transmission member 420 rotates around the first mounting shaft 500, and the rotation of the second transmission member 420 drives the movable contact 200 to rotate around the first mounting shaft 500. Such a motion link realizes the organic connection between the various components, ensuring that the power of the drive assembly 300 can be effectively transmitted to various parts of the contact mechanism 10. This design not only ensures the coordination of the movement, but also improves the stability and reliability of the system.

[0045] In this design, it should be particularly emphasized that the movement mode of the first transmission member 410 can also be rotation. The function of the drive assembly 300 is to drive the first transmission member 410 to generate rotational motion. Through the rotational movement mode, the first transmission member 410 can effectively transmit power to the second transmission member 420 via the connection of the connecting rod 430, so that the second transmission member 420 also rotates around the first installation axis 500 in a rotational manner, and the rotation of the second transmission member 420 drives the moving contact 200 to also rotate around the first installation axis 500. Such a rotational movement mode provides more flexibility and customizability for the contact mechanism 10, especially when it is necessary to adapt to different working scenarios. By adjusting the design parameters of the drive assembly 300 and the first transmission member 410, different rotation speeds and angles can be easily achieved to meet the specific requirements of the load switch.

[0046] Alternatively, if Figure 5 As shown, the contact mechanism 10 also includes a micro switch 600, which is arranged in cooperation with the transmission assembly 400 and is used to output an electrical signal according to the position of the transmission assembly 400 to represent the closing or opening state of the moving contact 200 and the static contact 100. Specifically, the connecting rod 430 of the transmission assembly 400 and the action reed 610 of the micro switch 600 form a clever driving cooperation, so that the end fixed contact and the moving contact of the micro switch 600 can be quickly connected or disconnected at the right time. The function of this micro switch 600 is to accurately reflect the actual state of the moving contact 200 and the static contact 100 through the change of the electrical signal.

[0047] In the closing operation, when the driving assembly 300 drives the moving contact 200 and the stationary contact 100 to close, the connecting rod 430 of the transmission assembly 400 moves in the direction away from the action spring 610, and at this time, the connecting rod 430 does not give an action force to the action spring 610. Therefore, the fixed contact is disconnected from the moving contact, and the micro switch 600 outputs a closing signal. On the contrary, in the opening operation, when the driving assembly 300 drives the moving contact 200 and the stationary contact 100 to open, the connecting rod 430 of the transmission assembly 400 moves in the direction close to the action spring 610 and gives an action force to the action spring 610. At this time, the fixed contact is connected to the moving contact, and the micro switch 600 outputs an opening signal. Therefore, according to the electrical signal output by the micro switch 600, the actual state of the moving contact 200 and the stationary contact 100 can be accurately judged.

[0048] In another achievable embodiment, the micro switch 600 is provided in cooperation with the drive assembly 300, and is used to output an electrical signal according to the position of the drive assembly 300 to characterize the closing or opening state of the moving contact 200 and the stationary contact 100. Specifically, when the drive assembly 300 is a swing member 320, the extension portion 322 of the swing member 320 and the action reed 610 of the micro switch 600 form a clever driving cooperation, so that the end fixed contact and the moving contact of the micro switch 600 can be quickly connected or disconnected at the appropriate time. The function of this micro switch 600 is to accurately reflect the actual state of the moving contact 200 and the stationary contact 100 through the change of the electrical signal.

[0049] In the closing operation, when the swing member 320 drives the moving contact 200 and the stationary contact 100 to close, the extension 322 of the swing member 320 swings toward the direction close to the action spring 610. At this time, the extension 322 applies a force to the action spring 610, the fixed contact is connected with the moving contact, and the micro switch 600 outputs a closing signal. On the contrary, in the opening operation, when the swing member 320 drives the moving contact 200 and the stationary contact 100 to open, the extension 322 of the swing member 320 swings toward the direction away from the action spring 610. At this time, the extension 322 cannot apply a force to the action spring 610, the fixed contact is disconnected from the moving contact, and the micro switch 600 outputs an opening signal. Therefore, according to the electrical signal output by the micro switch 600, the actual state of the moving contact 200 and the stationary contact 100 can be accurately judged.

[0050] This design realizes real-time monitoring of the state of the contact mechanism 10 through the flexible application of the micro switch 600, providing accurate and reliable feedback for the load switch system. The rapid response and reliability of the micro switch 600 enable the system to be informed of changes in the contact state in a timely manner, thereby more effectively monitoring and controlling, and improving the overall performance and reliability of the system.

[0051] Alternatively, if Figure 5As shown, the contact mechanism 10 also includes an elastic member 700, one end of the elastic member 700 abuts against the moving contact 200, and the other end of the elastic member 700 abuts against the second transmission member 420, forming a connection. Such a design allows the elastic member 700 to transmit force between the first transmission member 410 and the second transmission member 420 when the first transmission member 410 drives the second transmission member 420 to rotate, so that the second transmission member 420 can drive the moving contact 200 to rotate synchronously. When the moving contact 200 reaches the closing position, the moving contact 200 remains in contact and does not move, while the second transmission member 420 continues to rotate for a short distance under the influence of the force of the first transmission member 410, which will cause the elastic member 700 to be further compressed. In this process, the role of the elastic member 700 is similar to that of a spring, which can store energy. The further compression of the elastic member 700 causes the system to form a contact final pressure. This means that in the closing state, the contact between the moving contact 200 and the static contact 100 will be tighter and firmer. The formation of contact final pressure ensures the reliability of electrical connection and reduces the instability of contacts caused by vibration or other factors during operation.

[0052] In general, this design further adjusts the position of the contact in the closed state and forms a contact final pressure by utilizing the characteristics of the elastic member 700, thereby ensuring a tighter electrical connection between the moving contact 200 and the stationary contact 100 in the closed state. This design helps to improve the stability and reliability of the contact mechanism 10 and ensure that a stable electrical connection can be maintained under various working conditions.

[0053] It should be noted that the elastic member 700 can be a single torsion spring, a double torsion spring, or other elastic members 700 that can achieve similar functions. When the elastic member 700 is a double torsion spring, while providing elastic support, it is more stable and can effectively resist external disturbances and changes, which helps to maintain the reliability of the contact mechanism 10. At the same time, due to the relatively symmetrical structure, it ensures that both sides of the elastic member 700 are subjected to similar external forces, so that the elastic response is more uniform. This helps to maintain the stability and reliability of the spring.

[0054] Alternatively, if Figure 5As shown, the end of the moving contact 200 away from the stationary contact 100 has a first convex portion 210, the second transmission member 420 has a second convex portion 421, one end of the elastic member 700 abuts against the first convex portion 210, and the other end of the elastic member 700 abuts against the second convex portion 421. Specifically, when the first transmission member 410 drives the second transmission member 420 to move through the connecting rod 430, the state between the moving contact 200 and the stationary contact 100 will change. In this process, one end of the elastic member 700 abuts against the first convex portion 210, and the other end abuts against the second convex portion 421. The first convex portion 210 becomes the point of action for the elastic member 700 to apply force to the moving contact 200, and the second convex portion 421 becomes the point of action for the elastic member 700 to apply force to the second transmission member 420. The first convex portion 210 and the second convex portion 421 are respectively used as the points of action of the elastic member 700, and this design ensures that the relative positions of the points of action remain stable during the movement. Such a stable action point is conducive to realizing the function of the elastic member 700 , ensuring that the force can be accurately and reliably transmitted during the movement of the contact mechanism 10 , thereby ensuring a reliable connection between the moving contact 200 and the stationary contact 100 .

[0055] In general, by considering the stability of the action point in the design, the contact mechanism 10 realizes a more reliable and stable connection between the protrusion of the movable contact 200 away from the stationary contact 100 and the elastic member 700. This design helps to improve the reliability of the contact mechanism 10 and ensure that the appropriate force and position relationship can be maintained under various working conditions.

[0056] Alternatively, if Figure 5 As shown, the contact mechanism 10 also includes a soft connector 800, one end of which is connected to the first protrusion 210, and the other end is connected to the terminal to achieve circuit connection. When closing or opening the switch, the movement of the moving contact 200 will cause the relative position of the first protrusion 210 to change. Due to the flexible characteristics of the soft connector 800, it allows the connection point to move and twist within a certain range, so it can effectively adapt to the movement of the moving contact 200 and ensure that the connection always remains relatively stable. The connection between the soft connector 800 and the first protrusion 210 not only provides elastic support, but also effectively reduces the impact force caused by mechanical movement. This shock absorption effect helps to prevent the system from being damaged by external impact and improves the stability and life of the contact mechanism 10. In addition, the flexible connection between the soft connector 800 and the terminal enables the contact mechanism 10 to adapt to the needs of variable space under various working conditions. The mobility and twistability of the connection point enable the contact mechanism 10 to more flexibly cope with forces and external torques in different directions, ensuring that it can still perform operations stably and reliably in a complex working environment.

[0057] The present application also provides a load switch. Figure 6 or Figure 7As shown, the load switch includes a housing 20 and any of the above-mentioned contact mechanisms 10, and the contact mechanism 10 is installed in the housing 20, so that the load switch can achieve reliable electrical connection and switching operation in an integral external housing 20. Since the load switch adopts the above-mentioned contact mechanism 10, it also has the same beneficial effects as the contact mechanism 10, which will not be repeated here.

[0058] The embodiment of the present application also provides a smart meter, including any of the above-mentioned load switches. One of the key components of the smart meter is the load switch. The design and performance of the load switch are directly related to the safe and stable operation of the smart meter. Since the smart meter adopts the above-mentioned load switch, it also has the same beneficial effects as the load switch, which will not be repeated here.

[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 mechanism, characterized in that: The invention comprises a stationary contact (100), a moving contact (200), a driving assembly (300) and a transmission assembly (400), wherein the transmission assembly (400) comprises a first transmission member (410) and a second transmission member (420) connected via a connecting rod (430), the driving assembly (300) is drivingly connected to the first transmission member (410), the second transmission member (420) is drivingly connected to the moving contact (200), and the driving assembly (300) drives the first transmission member (410) and the second transmission member (420) to move, so as to drive the moving contact (200) and the stationary contact (100) to close or open.

2. The contact mechanism according to claim 1, characterized in that: The driving component (300) has a first tooth (311), and the first transmission member (410) has a second tooth (411) meshing with the first tooth (311).

3. The contact mechanism according to claim 1, characterized in that: The driving assembly (300) has a clamping groove (321), and the first transmission member (410) has a protrusion (412), or the first transmission member (410) has a clamping groove (321), and the driving assembly (300) has a protrusion (412); the clamping groove (321) is used to clamp the protrusion (412) to drive the first transmission member (410) to move.

4. The contact mechanism according to any one of claims 1 to 3, characterized in that: The contact mechanism (10) further comprises a driving system, wherein the driving system is used to drive the driving component (300) to perform linear motion or swinging motion.

5. The contact mechanism according to any one of claims 1 to 3, characterized in that: The contact mechanism (10) further comprises a first mounting shaft (500), the movable contact (200) and the second transmission member (420) being rotatably mounted on the first mounting shaft (500) respectively, and the driving assembly (300) drives the second transmission member (420) to rotate around the first mounting shaft (500) via the first transmission member (410), so as to drive the movable contact (200) to rotate around the first mounting shaft (500).

6. The contact mechanism according to any one of claims 1 to 3, characterized in that: The contact mechanism (10) further comprises a micro switch (600), wherein the micro switch (600) is arranged in cooperation with the transmission assembly (400), and the micro switch (600) is used to output an electrical signal representing the closing or opening of the moving contact (200) and the static contact (100) according to the position of the transmission assembly (400).

7. The contact mechanism according to any one of claims 1 to 3, characterized in that: The contact mechanism (10) further comprises a micro switch (600), wherein the micro switch (600) is arranged in cooperation with the drive assembly (300), and the micro switch (600) is used to output an electrical signal representing the closing or opening of the moving contact (200) and the static contact (100) according to the position of the drive assembly (300).

8. The contact mechanism according to any one of claims 1 to 3, characterized in that: The contact mechanism (10) further comprises an elastic member (700), one end of the elastic member (700) being abutted against the moving contact (200), and the other end of the elastic member (700) being abutted against the second transmission member (420).

9. The contact mechanism according to claim 8, characterized in that: The end of the moving contact (200) facing away from the stationary contact (100) has a first convex portion (210), the second transmission member (420) has a second convex portion (421), one end of the elastic member (700) abuts against the first convex portion (210), and the other end of the elastic member (700) abuts against the second convex portion (421).

10. A load switch, characterized in that: The invention comprises a housing (20) and a contact mechanism (10) according to any one of claims 1 to 9, wherein the contact mechanism (10) is installed in the housing (20).

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