Load switch and ammeter

Abstract

The utility model provides a load switch and an ammeter, and relates to the technical field of power equipment, the load switch comprises a housing, and a moving contact assembly, a detection switch and a driving assembly which are installed in the housing along a first direction, the detection switch is located at one side, close to the moving contact assembly, of the driving assembly, and the driving assembly is in driving cooperation with the moving contact assembly and the detection switch. The driving assembly is used for driving the detection switch in the process of driving the moving contact assembly to be switched on or switched off, and the detection switch is used for outputting an electric signal representing switching on or switching off of the moving contact assembly. According to the design, the spare space between the moving contact assembly and the driving assembly is fully utilized, and the internal layout of the whole load switch is optimized, so that the problem of extra occupied space is avoided, and the compact and miniaturized design of the load switch is facilitated. Besides, the detection switch is arranged between the moving contact assembly and the driving assembly, so that the driving assembly can smoothly drive the detection switch when driving the moving contact assembly, and high efficiency and accuracy of the monitoring process are ensured.

Description

Technical Field

[0001] This application relates to the field of power equipment technology, and more specifically, to a load switch and an electricity meter. Background Technology

[0002] Load switches, as indispensable control devices in power systems, play a crucial role in circuit load management. Their core function is to regulate electrical energy transmission by precisely controlling the on / off state of the circuit, and they are widely used in power systems, industrial automation, building power distribution, and many other fields. Load switches mainly consist of three core components: a drive assembly, a moving contact, and a stationary contact. The drive assembly, as the actuator, is responsible for controlling the movement of the moving contact; the moving and stationary contacts form the key contact points for circuit on / off, realizing the control of electrical energy transmission.

[0003] In actual operation, an external power source supplies electrical energy to the load end through a load switch. When the drive component receives a control signal, it causes the moving contact to make contact with or separate from the stationary contact, thereby completing the connection or disconnection of the circuit. To ensure accurate monitoring of the switch status, existing technologies typically add a detection switch inside the load switch. This detection switch moves synchronously with the moving contact, providing real-time feedback on the switch's open / closed status.

[0004] However, adding a detection switch complicates the internal structure of the load switch and requires additional installation space. Furthermore, due to suboptimal layout design, the detection switch often occupies a large volume, increasing the overall size of the load switch and limiting its potential for miniaturization and compact design. Especially given the current trend towards miniaturization and integration in power equipment, this structural design is no longer sufficient to meet the actual needs of modern power systems. Utility Model Content

[0005] The purpose of this application is to provide a load switch and an electricity meter to address the shortcomings of the prior art.

[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows:

[0007] In one aspect of this application, a load switch is provided, including a housing and a moving contact assembly, a detection switch, and a drive assembly installed in the housing along a first direction. The detection switch is located on the side of the drive assembly close to the moving contact assembly. The drive assembly drives and cooperates with the moving contact assembly and the detection switch respectively. The drive assembly is used to drive the detection switch during the process of driving the moving contact assembly to close or open. The detection switch is used to output an electrical signal characterizing the closing or opening of the moving contact assembly.

[0008] Optionally, the detection switch has pins for outputting electrical signals and movable plates for controlling the opening and closing states of the detection switch. The pins and movable plates are located on both sides of the detection switch along the thickness direction of the housing, with the first direction perpendicular to the thickness direction of the housing. The drive assembly drives and cooperates with the movable plates.

[0009] Optionally, the load switch also includes a circuit board mounted in the housing, the circuit board and the detection switch being stacked along the thickness direction of the housing, and the circuit board being located on the side of the detection switch having pins, the pins being connected to the circuit board.

[0010] Optionally, a mounting groove for mounting a detection switch is provided inside the housing. The dimension of the mounting groove along the second direction is larger than its dimension along the first direction. The second direction is perpendicular to the first direction. The pin is mounted on the bottom wall of the mounting groove, and the movable piece extends out of the groove opening.

[0011] Optionally, the drive assembly includes an electromagnetic coil fixedly installed in the housing and an armature movably installed in the housing, the armature cooperating with the moving contact assembly and the detection switch respectively.

[0012] Optionally, the armature and the electromagnetic coil are arranged along a first direction, with the electromagnetic coil located on the side of the armature away from the detection switch.

[0013] Optionally, the armature has a protrusion extending toward the detection switch, and the armature engages with the detection switch via the protrusion.

[0014] Optionally, the armature is a rotating armature, the protrusion is a cylinder, and the axis of rotation of the rotating armature intersects the central axis of the cylinder.

[0015] Optionally, the load switch also includes a linkage, through which the drive assembly engages with the moving contact assembly.

[0016] Optionally, the housing includes a base and a cover, with the cover fitting onto the base along the thickness direction of the housing to form a mounting cavity, and the moving contact assembly, the detection switch, and the drive assembly being sequentially mounted in the mounting cavity along a first direction.

[0017] In another aspect of this application, an electricity meter is provided, including any of the load switches described above.

[0018] The beneficial effects of this application include:

[0019] This application provides a load switch, including a housing and a moving contact assembly, a detection switch, and a drive assembly mounted within the housing along a first direction. The detection switch is located on the drive assembly near the moving contact assembly. The drive assembly drives and cooperates with both the moving contact assembly and the detection switch. The drive assembly drives the detection switch during the closing or opening of the moving contact assembly. The detection switch outputs an electrical signal characterizing the closing or opening of the moving contact assembly. This design fully utilizes the space between the moving contact assembly and the drive assembly, optimizing the internal layout of the entire load switch and avoiding the problem of additional space occupation. This layout not only improves space utilization but also effectively reduces the increase in the size of the load switch, which is beneficial for the compact and miniaturized design of the load switch. Furthermore, placing the detection switch between the moving contact assembly and the drive assembly facilitates the smooth operation of the detection switch by the drive assembly when driving the moving contact assembly to close or open, ensuring the efficiency and accuracy of the monitoring process. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is one of the structural schematic diagrams of a load switch provided in the embodiments of this application;

[0022] Figure 2 This is a second schematic diagram of a load switch provided in an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the structure of a detection switch provided in an embodiment of this application;

[0024] Figure 4 A schematic diagram of the structure of a shell provided in an embodiment of this application;

[0025] Figure 5 This is the third schematic diagram of a load switch provided in the embodiments of this application.

[0026] Icons: 1-Housing; 11-Mounting slot; 2-Moving contact assembly; 3-Detection switch; 31-Pin; 32-Moving piece; 4-Drive assembly; 41-Electromagnetic coil; 42-Armature; 421-Protrusion; 5-Circuit board; 6-Linkage; x-First direction; y-Second direction; z-Thickness direction of housing. Detailed Implementation

[0027] 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, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. It should be noted that, unless otherwise specified, the various features in the embodiments of this application can be combined with each other, and the combined embodiments are still within the protection scope of this application.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] Load switches are key devices for controlling circuit loads. They use a drive component to move the moving contact against the stationary contact, thus switching the circuit on and off. To ensure accurate monitoring of the switch status, existing technologies typically add a detection switch that moves synchronously with the moving contact. However, this design has significant drawbacks: the addition of the detection switch complicates the internal structure, occupies more space, and increases the overall size of the load switch, severely hindering its miniaturization and compact design.

[0034] To address the aforementioned problems, one aspect of this application provides a load switch, such as... Figures 1 to 5 As shown, the load switch includes a housing 1, a stationary contact, a moving contact assembly 2, a detection switch 3, and a drive assembly 4. The stationary contact is fixedly installed inside the housing 1, and the moving contact assembly 2 is movably installed inside the housing 1. The drive assembly 4 drives the moving contact assembly 2 and the detection switch 3 respectively. By driving the moving contact assembly 2 closer to or further away from the stationary contact, the load switch can be closed or opened. Furthermore, during the closing or opening process of the moving contact assembly 2, the drive assembly 4 also drives the detection switch 3, causing the detection switch 3 to output an electrical signal indicating whether the moving contact assembly 2 is closed or open, thus providing accurate switch status monitoring. Of course, this application does not limit the movable installation method of the moving contact assembly 2; for example, it can be rotatably installed inside the housing 1 of the load switch, or it can be slidably installed inside the housing 1 of the load switch. For ease of understanding, the following description uses the rotation of the moving contact assembly 2 as an example.

[0035] like Figure 1 As shown, to achieve high efficiency and miniaturization of the load switch, the moving contact assembly 2, the detection switch 3, and the drive assembly 4 are arranged in a straight line along the first direction x, with the detection switch 3 located on the side of the drive assembly 4 closest to the moving contact assembly 2. This design fully utilizes the space between the moving contact assembly 2 and the drive assembly 4, optimizing the internal layout of the entire load switch and avoiding the problem of additional space occupation. This layout not only improves space utilization but also effectively reduces the increase in the size of the load switch, which is beneficial to the compact and miniaturized design of the load switch. In addition, placing the detection switch 3 between the moving contact assembly 2 and the drive assembly 4 facilitates the smooth operation of the detection switch 3 when the drive assembly 4 drives the moving contact assembly 2 to close or open, ensuring the efficiency and accuracy of the monitoring process.

[0036] It should be understood that the drive component 4 can simultaneously drive the detection switch 3 from the open state to the closed state during the process of driving the moving contact component 2 from opening to closing, thereby outputting an electrical signal indicating that the moving contact component 2 is closed. Similarly, during the process of driving the moving contact component 2 from closing to opening, the detection switch 3 will switch from the closed state to the open state, outputting an electrical signal indicating that the moving contact component 2 is open. In addition, the drive component 4 can also drive the detection switch 3 to open at the instant the moving contact component 2 closes, thereby outputting an electrical signal indicating the closed state. Similarly, at the instant the moving contact component 2 opens, the drive component 4 will drive the detection switch 3 to open, outputting an electrical signal indicating the open state. Both of these methods can ensure accurate status feedback for each switching operation, providing reliable data support for the circuit monitoring and control system.

[0037] In general, through reasonable spatial layout and component configuration, not only can the problem of increased size caused by additional space requirements in traditional load switches be avoided, but system complexity can also be effectively reduced, simplifying the design and manufacturing process of load switches. This optimized design not only meets the demands of modern power systems for miniaturized and efficient load switches, but also ensures the reliability and accuracy of the switches, guaranteeing the safe operation of the system and greatly enhancing market competitiveness.

[0038] Optionally, such as Figure 2 and Figure 3 As shown, the detection switch 3 is a micro switch, which has a pin 31 for outputting an electrical signal and a movable piece 32 for controlling the opening and closing state of the detection switch 3. The pin 31 and the movable piece 32 are located on both sides of the detection switch 3 along the thickness direction z of the housing. This design tightly integrates the electrical signal output function with the control mechanism, ensuring accurate transmission of the electrical signal and efficient detection of the switch state. Secondly, the location of the pin 31 and the movable piece 32 on both sides of the detection switch 3 along the thickness direction z of the housing facilitates the installation and wiring of the micro switch, eliminating the need for special clearance grooves for the pin 31 and the need for bending the pin 31. To optimize the spatial layout and improve operational efficiency, the layout of the movable piece 32 and the pin 31 is chosen along the thickness direction z of the housing, making the switch operation response more sensitive and rapid.

[0039] Specifically, the drive assembly 4 and the movable piece 32 work together to ensure efficient synchronization during switch operation. When the drive assembly 4 is activated, the movable piece 32 responds quickly and connects or disconnects the fixed and moving contacts inside the microswitch. This precise control method allows the detection switch 3 to quickly and accurately detect changes in the state of the moving contact assembly 2, thereby outputting an electrical signal indicating whether the moving contact assembly 2 is closed or open. Through this efficient linkage mechanism, the detection switch 3 can monitor the operating status of the load switch in real time, providing reliable feedback information to the power system.

[0040] Furthermore, it should be noted that the first direction x refers to a specific direction of the housing 1, which can be the length, width, or thickness direction of the housing 1. In practical applications, it is preferable to set the first direction x as the length direction of the housing 1, that is, the first direction x is perpendicular to the thickness direction z of the housing. This choice helps to optimize the spatial layout during the design process, ensures a more compact fit between the detection switch 3 and other components, and ensures the coordination between electrical connections and physical structure. Through this optimized directional design, the load switch can better adapt to the design requirements of miniaturization and compactness while ensuring functionality, thereby improving the overall performance and ease of use of the equipment.

[0041] Optionally, such as Figure 1 As shown, the load switch also includes a circuit board 5 installed in the housing 1. The circuit board 5 and the detection switch 3 are stacked along the thickness direction z of the housing, and the circuit board 5 is located on the side of the detection switch 3 with pins 31. The pins 31 are connected to the circuit board 5, so that the detection switch 3 and the circuit board 5 can achieve a reliable mechanical and electrical connection.

[0042] Specifically, circuit board 5 is mounted on the inner wall of the housing along the thickness direction z, and the pins 31 of the detection switch 3 are soldered to circuit board 5 along the thickness direction z of the housing. This layout makes full use of the thickness space inside the housing 1, achieving stable and reliable electrical connections without increasing the external volume of the load switch. This design makes the electrical connection between circuit board 5 and detection switch 3 simpler, while avoiding excessive space occupation in the width and length directions. Through this optimized space utilization, the load switch can better meet the design requirements of miniaturization and compactness while maintaining high performance. Moreover, the stacked design of circuit board 5 and detection switch 3 makes the electrical connection more direct and stable, avoiding the instability or signal loss that may occur in traditional designs. In addition, this design improves the collaborative working efficiency of various components inside the load switch, allowing changes in the state of detection switch 3 to be quickly fed back to the control system through circuit board 5, thereby achieving accurate monitoring of the switch status.

[0043] Optionally, such as Figure 4 As shown, to ensure stable installation and efficient operation of the detection switch 3, a mounting groove 11 for mounting the detection switch 3 is provided inside the housing 1. The dimension of the mounting groove 11 along the second direction y is larger than its dimension along the first direction x. The second direction y is perpendicular to the first direction x. The pin 31 is mounted on the bottom wall of the mounting groove 11, and the movable piece 32 extends out of the groove opening of the mounting groove 11. This design of the mounting groove 11 not only ensures the stable installation of the detection switch 3, but also optimizes electrical connections and space utilization.

[0044] Specifically, the mounting slot 11 and the drive assembly 4 are arranged in a straight line along the first direction x, ensuring the alignment and coordination of the detection switch 3 and the drive assembly 4 in the first direction x. Furthermore, the dimension of the mounting slot 11 along the second direction y (the width direction of the housing 1) is larger than its dimension along the first direction x (the length direction of the housing 1). This reduces the size of the housing 1 in the first direction x and makes efficient use of the space in the second direction y. The bottom wall of the mounting slot 11 is tightly fitted to one side of the inner wall of the housing in the thickness direction z, while the slot opening faces the other side of the housing in the thickness direction z. The mounting slot 11 has an opening on its side wall along the second direction y, through which one end of the circuit board 5 is inserted into the mounting slot 11 and fitted to the bottom wall of the mounting slot 11. The circuit board 5 is connected to the pin 31 of the detection switch 3 by soldering, so that the detection switch 3 is firmly fixed in the mounting slot 11 and forms a reliable electrical connection with the circuit board 5. With this design, the two side walls of the mounting groove 11 along the first direction x (the length direction of the housing 1) can effectively limit the displacement of the circuit board 5 and the detection switch 3 along the first direction x, thereby ensuring the stability and accuracy of the equipment.

[0045] Furthermore, to ensure smooth movement of the movable piece 32 and coordinated operation with the drive assembly 4, the depth of the mounting groove 11 (i.e., the dimension along the thickness z direction of the housing) is designed to be smaller than the dimension along the thickness z direction of the detection switch 3. This allows the movable piece 32 to extend outwards from the opening of the mounting groove 11, facilitating the drive assembly 4 to move the movable piece 32. This enables the movable piece 32 to smoothly participate in the switching operation of the detection switch 3, thereby ensuring accurate monitoring of the load switch and reliable output of electrical signals.

[0046] Optionally, such as Figure 5 As shown, the drive assembly 4 includes an electromagnetic coil 41 fixedly installed inside the housing 1 and an armature 42 movably installed inside the housing 1. The armature 42 is driven and cooperates with the moving contact assembly 2 and the detection switch 3 respectively. This design enables the drive assembly 4 to realize the closing and opening operation of the moving contact assembly 2 through electromagnetic force, while maintaining linkage with the detection switch 3 to ensure that the circuit status can be accurately and in real time monitored.

[0047] Specifically, the coordinated operation of the electromagnetic coil 41 and the armature 42 is the foundation for the efficient operation of the drive assembly 4. When the electromagnetic coil 41 is energized, the generated electromagnetic force causes the armature 42 to move linearly or curvilinearly, thereby driving the moving contact assembly 2 to close or open. Simultaneously, the armature 42 works in conjunction with the movable piece 32 of the detection switch 3. The movement of the armature 42 also causes the fixed and moving contacts inside the detection switch 3 to connect or disconnect, allowing the detection switch 3 to output corresponding electrical signals based on the closing or opening state of the moving contact assembly 2, providing feedback on the current circuit status. Thus, the entire drive process not only controls the movement of the moving contact assembly 2 but also ensures accurate transmission of electrical signals through the detection switch 3.

[0048] Optionally, such as Figure 1 and Figure 5 As shown, the electromagnetic coil 41 and armature 42 are arranged along the first direction x. This arrangement not only optimizes space utilization but also ensures the efficiency and stability of the driving process. The electromagnetic coil 41 is located on the side of the armature 42 away from the detection switch 3, forming a reasonable structural configuration between the electromagnetic coil 41 and the armature 42. Through this layout, the moving contact assembly 2, the detection switch 3, the armature 42, and the electromagnetic coil 41 are arranged sequentially along the first direction x, enabling the armature 42 to efficiently drive the moving contact assembly 2 and the detection switch 3, forming a highly efficient and coordinated working system that ensures precise connection and synchronous operation between each component.

[0049] Furthermore, the arrangement of the electromagnetic coil 41 and armature 42 along the first direction x allows for a rational spatial arrangement of the entire drive system, avoiding potential space waste or design complexity caused by improper layout. The orderly arrangement of the moving contact assembly 2, detection switch 3, armature 42, and electromagnetic coil 41 gives the load switch drive system better structural stability and response speed, thereby improving the operating accuracy of the load switch. Through optimized layout, the size of the load switch can be effectively controlled, and the collaborative work between the components is closer, effectively improving the control efficiency of the power system.

[0050] Optionally, such as Figure 5 As shown, the armature 42 of the drive assembly 4 has a protrusion 421 extending toward the detection switch 3. Through the protrusion 421, the armature 42 and the movable piece 32 of the detection switch 3 are driven together, thereby ensuring that the detection switch 3 can provide real-time feedback on the closed or open state of the circuit according to the change in the movement of the moving contact assembly 2.

[0051] Specifically, when the electromagnetic coil 41 is energized and generates electromagnetic force, the armature 42 is driven to move. Since the protrusion 421 of the armature 42 faces the detection switch 3 and contacts the movable piece 32, this movement drives the movable piece 32 to move, thereby causing the detection switch 3 to change state and output a corresponding electrical signal. Through this design, the armature 42 can not only efficiently control the opening and closing operation of the moving contact assembly 2, but also synchronously drive the detection switch 3, ensuring that the load switch can accurately execute switching actions and provide real-time feedback on the circuit status during operation, providing accurate information for the control system.

[0052] Optionally, the armature 42 is a rotating armature. When the electromagnetic coil 41 is energized and generates electromagnetic force, the armature 42 is driven to rotate, and its rotation axis is parallel to the thickness direction z of the housing. The protrusion 421 of the armature 42 can be a cylinder, and the rotation axis of the rotating armature intersects the central axis of the cylinder. Preferably, the rotation axis of the rotating armature is perpendicular to the central axis of the cylinder. That is, the protrusion 421 of the armature 42 is located in the middle position on the side away from the electromagnetic coil 41. This design ensures that the movement of the armature 42 can be precisely matched with the position of the detection switch 3. In addition, the protrusion 421 can also be a cuboid. In this case, the rotation axis of the rotating armature intersects or is perpendicular to the central axis of the cuboid along its length.

[0053] Optionally, such as Figure 5 As shown, the load switch also includes a connecting rod 6, through which the drive assembly 4 is driven and cooperates with the moving contact assembly 2. The connecting rod 6, as a crucial component connecting the drive assembly 4 and the moving contact assembly 2, plays a key role in mechanical transmission. Through its cooperation with the drive assembly 4, the connecting rod 6 ensures that the moving contact assembly 2 can smoothly complete the closing or opening operation during the driving process.

[0054] Specifically, one end of the connecting rod 6 is rotatably connected to the moving contact assembly 2, while the other end is rotatably connected to the armature 42, forming a tight mechanical transmission system. This design ensures that the armature 42, through the action of the connecting rod 6, can effectively drive the moving contact assembly 2, thereby realizing the switching operation of the circuit. When the electromagnetic coil 41 is energized to generate electromagnetic force, the armature 42 in the drive assembly 4 is driven to rotate. The armature 42 is connected to the moving contact assembly 2 through the other end of the connecting rod 6, causing the moving contact assembly 2 to perform closing or opening actions accordingly. The function of the connecting rod 6 is to transmit the rotational force of the armature 42 to the moving contact assembly 2, ensuring that the operation of the moving contact assembly 2 is synchronized with the action of the drive assembly 4, thus completing the closing or opening function of the load switch. Due to the transmission action of the connecting rod 6, the mechanical movement between the drive assembly 4 and the moving contact assembly 2 is effectively connected, enabling the load switch to quickly and accurately control the connection and disconnection of the circuit.

[0055] Optionally, the link 6 and the detection switch 3 are arranged along the second direction y. The link 6 is positioned at the edge of the housing 1 along the second direction y, while the detection switch 3 is located at the middle of the housing 1 along the second direction y. This arrangement optimizes space utilization and enables efficient collaboration between the components.

[0056] Specifically, one end of the connecting rod 6 is rotatably connected to the end of the moving contact assembly 2 near its rotation center, while the other end is rotatably connected to the end of the armature 42 away from the electromagnetic coil 41. Through this design, the connecting rod 6 plays a crucial transmission role, ensuring that the movement of the armature 42 effectively drives the moving contact assembly 2 and achieves precise opening and closing of the circuit. Due to the rational arrangement of the connecting rod 6 and the protrusion 421, the movement of the armature 42 not only drives the moving contact assembly 2 to complete the switching operation, but also, through the cooperation of the protrusion 421 of the armature 42 and the detection switch 3, ensures that the state changes of the detection switch 3 are synchronized with the action of the moving contact assembly 2. This allows the detection switch 3 to output accurate electrical signals in real time, providing feedback on the closed or open state of the moving contact assembly 2, thereby improving the monitoring accuracy and response speed of the load switch.

[0057] Optionally, the housing 1 consists of a base and a cover. The cover fits onto the base along the thickness direction z of the housing, forming a compact mounting cavity. This mounting cavity provides sufficient space to house key components of the load switch, such as the moving contact assembly 2, the detection switch 3, and the drive assembly 4. The moving contact assembly 2, the detection switch 3, and the drive assembly 4 are sequentially installed within the mounting cavity along the first direction x, ensuring a rational arrangement and efficient collaborative operation between the components and reducing potential interference or inconsistencies. Through this design, the internal structure of the load switch can be optimized, reducing the size of the load switch along the second direction y, and space can be effectively utilized, thereby ensuring the miniaturization and compactness of the equipment.

[0058] It should be noted that the circuit board 5 is mounted on the inner wall of the base, and the pin 31 of the detection switch 3 is soldered onto the circuit board 5. That is, the pin 31 of the detection switch 3 is positioned close to the base, while the movable piece 32 faces the cover. In this configuration, the relative position of the movable piece 32 and the pin 31 facilitates the smooth operation of the detection switch 3 and enables accurate output of electrical signals during the switching process of the moving contact assembly 2.

[0059] In another aspect of this application, an electricity meter is provided, including a current transformer and any of the above-described load switches. Preferably, the driving components 4 of the current transformer and the load switch are arranged along the second direction y, making reasonable use of the internal space of the electricity meter. Since the electricity meter uses the aforementioned load switch, it also has the same beneficial effects as the load switch, which will not be described in detail here.

[0060] This application also provides a power distribution device equipped with the aforementioned load switch. The power distribution device can be configured with at least one of the following: a distribution box, cable, distribution cabinet, motor, switch socket, lamps, air conditioner, electric water heater, electricity meter, camera, telephone, computer, etc. Such power distribution devices can utilize the load switch of this application to achieve intelligent management, but are not limited to the intelligent management power distribution devices described above; they can also be used in non-intelligent power distribution devices in traditional industries.

[0061] This application also provides a power distribution device, which applies the aforementioned load switch 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-based management.

[0062] Optionally, the embodiments of this application can be used for: fire protection power supply: fire control room, fire pump, smoke control and exhaust system, fire elevator and its drainage pump, fire emergency lighting, etc. (Level 1); corridor lighting, duty lighting, guard lighting, obstacle marker lights; rail transit; security system power supply; electronic information computer room power supply; passenger elevator power supply; sewage pump; variable frequency speed regulation constant pressure water supply pump (otherwise it is a Level 2 load); main offices, conference rooms, general duty room, archives.

[0063] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A load break switch characterized by, The load switch comprises a shell (1), a movable contact assembly (2), a detection switch (3) and a driving assembly (4) which are arranged in the shell (1) along a first direction (x), the detection switch (3) is arranged on a side of the driving assembly (4) which is close to the movable contact assembly (2), the driving assembly (4) is drivingly connected with the movable contact assembly (2) and the detection switch (3) respectively, the driving assembly (4) is used to drive the detection switch (3) in the process of driving the movable contact assembly (2) to close or open, and the detection switch (3) is used to output an electrical signal which represents the closing or opening of the movable contact assembly (2).

2. The load break switch according to claim 1, characterized in that The detection switch (3) has a pin (31) for outputting the electrical signal and a movable piece (32) for controlling the opening and closing state of the detection switch (3), the pin (31) and the movable piece (32) are arranged on both sides of the detection switch (3) along a thickness direction (z) of the shell, the first direction (x) is perpendicular to the thickness direction (z) of the shell, and the driving assembly (4) is drivingly connected with the movable piece (32).

3. The load break switch according to claim 2, characterized in that The load switch further comprises a circuit board (5) which is arranged in the shell (1), the circuit board (5) and the detection switch (3) are arranged in a stacking manner along the thickness direction (z) of the shell, the circuit board (5) is arranged on a side of the detection switch (3) which has the pin (31), and the pin (31) is connected to the circuit board (5).

4. A load break switch according to claim 2 or 3, characterised in that, An installation groove (11) for installing the detection switch (3) is arranged in the shell (1), the installation groove (11) has a size along a second direction (y) which is greater than a size along the first direction (x), the second direction (y) is perpendicular to the first direction (x), the pin (31) is arranged on a bottom wall of the installation groove (11), and the movable piece (32) extends out of a slot of the installation groove (11).

5. The load break switch according to any one of claims 1 to 3, characterized in that The driving assembly (4) comprises an electromagnetic coil (41) which is fixedly arranged in the shell (1) and an armature (42) which is movably arranged in the shell (1), the armature (42) is drivingly connected with the movable contact assembly (2) and the detection switch (3) respectively. The armature (42) and the electromagnetic coil (41) are arranged along the first direction (x), and the electromagnetic coil (41) is arranged on a side of the armature (42) which is away from the detection switch (3).

6. The load break switch according to claim 5, characterized in that The armature (42) has a protrusion (421) which extends towards the detection switch (3), and the armature (42) is drivingly connected with the detection switch (3) through the protrusion (421).

7. The load break switch according to claim 6, characterized in that The armature (42) is a rotating armature, the protrusion (421) is a cylinder, and an axis of rotation of the rotating armature intersects with a central axis of the cylinder.

8. The load break switch according to any one of claims 1 to 3, characterized in that The load switch further comprises a connecting rod (6), and the driving assembly (4) is drivingly connected with the movable contact assembly (2) through the connecting rod (6).

9. The load break switch according to any one of claims 1 to 3, characterized in that The shell (1) comprises a base and a cover which covers the base along the thickness direction (z) of the shell to form a mounting cavity, and the movable contact assembly (2), the detection switch (3) and the driving assembly (4) are sequentially mounted in the mounting cavity along the first direction (x).

10. An electricity meter characterized by A load switch comprising the load switch according to any one of claims 1 to 9.

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