A circuit breaker

Abstract

The application relates to the technical field of low-voltage electrical apparatus, in particular to a circuit breaker which comprises a shell and a handle; the shell forms a first chamber and a second chamber which are arranged in communication along a first direction, the first chamber is located at the top of the second chamber; an electric operating module is arranged in the first chamber; the handle and the electric operating module are arranged in a first chamber along a second direction; the first direction is perpendicular to the second direction; the handle is driven to rotate and drives the operating mechanism to rotate through a connecting rod; the rotating direction of the handle is opposite to that of the operating mechanism. The application optimizes the layout of the operating mechanism to form a chamber for arranging the electric operating module, thereby enhancing the function of the main interaction area of the circuit breaker and improving the operation convenience.

Description

Technical Field

[0001] This application relates to the field of low-voltage electrical technology, and more specifically, to a circuit breaker. Background Technology

[0002] A circuit breaker is an electrical device used to protect circuits from damage caused by overloads or short circuits. It automatically disconnects the circuit upon detecting abnormal current, thus preventing equipment damage or other safety accidents. Currently, circuit breakers have a mechanism base and spring element on the handle side. Because the operating mechanism occupies a large space, it's impossible to arrange electrical operating modules (supported by a circuit board) and indicator lights above the mechanism base. Since the circuit breaker's handle is typically the primary area of ​​user interaction, the inability to install electrically operated buttons or other electrical operating modules on the handle limits the functional integration of the circuit breaker on the operating surface. In frequent operation or emergency situations, the lack of an electrical operating module in current technology causes inconvenience for users and increases the difficulty of operation. Summary of the Invention

[0003] The purpose of this application is to provide a circuit breaker that optimizes the layout of the operating mechanism to form a chamber for arranging the electrical operating module, thereby enhancing the functionality of the main interactive area of ​​the circuit breaker and improving operational convenience.

[0004] The embodiments of this application are implemented as follows:

[0005] This application provides a circuit breaker, including a housing, a handle, and an operating mechanism. The housing forms a first chamber and a second chamber arranged in a first direction, with the first chamber located at the top of the second chamber. An electrical operating module is disposed in the first chamber. The handle and the electrical operating module are arranged in the first chamber in a second direction, which is perpendicular to the second direction. The handle is driven to rotate and, through a connecting rod, drives the operating mechanism to rotate to the closed position. The rotation direction of the handle is opposite to the rotation direction of the operating mechanism. The operating mechanism includes a reset spring disposed in the second chamber, which generates an elastic force that causes the operating mechanism to move to the open position.

[0006] As an optional implementation, the reset spring is a compression spring element, and a spindle is provided in the second chamber; the compression spring element is sleeved on the spindle, and the compression spring element abuts against the operating mechanism; the operating mechanism is provided with a moving contact, and the operating mechanism drives the moving contact to close the circuit, and the compression spring element is compressed to store elastic force; the spindle, the rotation center of the operating mechanism, and the electrical operating module are arranged sequentially along the first direction.

[0007] As an optional implementation, the operating mechanism has a first spindle hole; one end of the spindle abuts against the housing and the other end passes through the first spindle hole; the spindle has a first limiting part near the abutting end, and the first limiting part abuts against the compression spring element.

[0008] As an optional implementation, a second spindle hole is provided on the housing; one end of the spindle abuts against the operating mechanism and the other end passes through the second spindle hole; a second limiting part is provided on the housing, and one end of the compression spring element abuts against the second limiting part and the other end abuts against the outer ring of the second spindle hole.

[0009] As an optional implementation, the mandrel includes a first shaft and a second shaft; the first shaft and the second shaft extend in the same direction and are spaced apart; the end of the first shaft away from the second shaft abuts against the operating mechanism, and the end of the second shaft away from the first shaft abuts against the housing.

[0010] As an optional implementation, the housing is provided with a receiving groove, the mandrel is installed in the receiving groove, and a pre-reserved distance is made between the inner wall of the receiving groove and the mandrel.

[0011] As an optional implementation, the operating mechanism includes a mechanism base and a latch; the mechanism base is provided with a rotating part; both the latch and the moving contact can move around the rotating part; a first torsion spring and a second torsion spring are sleeved on the rotating part, one end of the first torsion spring abuts against the moving contact, and the compression of the first torsion spring generates a force that pushes the moving contact against the mechanism base; one end of the second torsion spring abuts against the latch, and the compression of the second torsion spring generates a force that pushes the latch against the mechanism base.

[0012] As an optional implementation, the housing is provided with a release device, and the release device is provided with a push rod. The release device drives the push rod to move in a first direction, so that the push rod pushes the latch to move around the rotating part.

[0013] As an optional implementation, the mechanism base is provided with a clearance groove; the contact head of the moving contact can pass through the clearance groove.

[0014] As an optional implementation, the housing is provided with a contact limiting structure; when the moving contact is open, the elastic force provided by the compression spring element causes the moving contact to abut against the contact limiting structure.

[0015] As an optional implementation, the housing contains a circuit board; the circuit board is partially arranged in the first chamber; the electrical operation module includes a circuit breaker button located on a portion of the circuit board.

[0016] As an optional implementation, the housing has an operating surface through which the handle passes, and two windows are opened on the operating surface. The opening and closing button passes through the first window to the outside of the housing, and an indicator light is also provided on the circuit board of the first chamber; the light emitted by the indicator light can pass through the second window.

[0017] The beneficial effects of the embodiments of this application include:

[0018] This application provides a circuit breaker, including a housing, a handle, and an operating mechanism. The housing forms a first chamber and a second chamber arranged in a first direction, with the first chamber located at the top of the second chamber. An electrical operating module is disposed in the first chamber. The handle and the electrical operating module are arranged in the first chamber along a second direction, perpendicular to the second direction. The handle is driven to rotate and, through a connecting rod, drives the operating mechanism to rotate, with the handle rotating in the opposite direction to the operating mechanism. The operating mechanism includes a return spring disposed in the second chamber, used to generate an elastic force that moves the operating mechanism to the open position. This application optimizes the layout of the operating mechanism to form a chamber for arranging the electrical operating module, thereby enhancing the functionality of the main interactive area of ​​the circuit breaker and improving operational convenience. This application embodiment enhances the user experience, allowing users to more conveniently use electric opening and closing functions in emergencies or during frequent operations, reducing operational difficulty and improving ease of use and safety. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is one of the structural schematic diagrams of the circuit breaker according to an embodiment of this application;

[0021] Figure 2 This is a second schematic diagram of the circuit breaker structure according to an embodiment of this application;

[0022] Figure 3 This is the third schematic diagram of the circuit breaker in the embodiments of this application;

[0023] Figure 4 This is the fourth schematic diagram of the circuit breaker in the embodiments of this application;

[0024] Figure 5 This is the fifth schematic diagram of the circuit breaker in the embodiments of this application;

[0025] Figure 6 This is the sixth schematic diagram of the circuit breaker in the embodiments of this application.

[0026] Icons: 100-Housing; 101-Handle; 102-First direction; 103-First chamber; 104-Second chamber; 105-Electrical operation module; 106-Second direction; 107-Connecting rod; 108-Spindle; 109-Compression spring element; 110-Moving contact; 111-First spindle hole; 112-First shaft; 113-Second shaft; 114-Mechanism seat; 115-Lock; 116-Rotating part; 117-First torsion spring; 118-Second torsion spring; 119-Trigger; 120-Push rod; 121-Contact limiting structure; 122-Circuit board; 123-Operating surface. 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. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] It should be noted that similar reference numerals 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. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] 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.

[0031] A circuit breaker is an electrical device used to protect circuits from overload or short-circuit damage. It automatically disconnects the circuit upon detecting abnormal current, thus preventing equipment damage or other safety accidents. Currently, circuit breakers have a mechanism base 114 and spring element on one side of the handle 101. Due to the large space occupied by the operating mechanism, it is impossible to arrange the electrical operating module 105 supported by the circuit board 122 and other modules such as indicator lights above the mechanism base 114. Since the operating surface 123 of the circuit breaker handle 101 is usually the main area for user interaction with the equipment, the inability to install the electrically operated button and other electrical operating module 105 on the operating surface 123 limits the functional integration of the circuit breaker on the operating surface 123. In frequent operation or emergency situations, the lack of an electrical operating module 105 in the existing technology causes inconvenience for users and increases the difficulty of operation.

[0032] To address the aforementioned technical problems, this application provides a circuit breaker.

[0033] Reference Figure 1 As shown, the circuit breaker provided in this embodiment includes a housing 100, a handle 101, and an operating mechanism. The housing 100 forms a first chamber 103 and a second chamber 104 arranged in communication along a first direction 102, with the first chamber 103 located at the top of the second chamber 104. An electrical operating module 105 is provided in the first chamber 103. The handle 101 and the electrical operating module 105 are arranged in the first chamber 103 along a second direction 106. The first direction 102 and the second direction 106 are perpendicular. The handle 101 is driven to rotate and, through a connecting rod 107, drives the operating mechanism to rotate to the closed position, wherein the rotation direction of the handle 101 is opposite to the rotation direction of the operating mechanism. The operating mechanism includes a return spring disposed in the second chamber 104, which generates an elastic force to move the operating mechanism to the open position.

[0034] Among them, reference Figure 1 As shown, a circuit board 122 is provided inside the housing 100; part of the circuit board 122 is arranged in the first chamber 103; the electrical operation module 105 includes a circuit breaker button provided on part of the circuit board 122.

[0035] It should be noted that the housing 100 has an operating surface 123 through which the handle 101 passes. Two windows are opened on the operating surface 123. The opening and closing buttons pass through the first window to the outside of the housing 100. An indicator light is also provided on the circuit board 122 of the first chamber 103. The light emitted by the indicator light can pass through the second window.

[0036] It should be noted that the first direction 102 can be the height direction of the housing 100. The second direction 106 can be the length direction of the housing 100.

[0037] In this embodiment, the handle 101 drives the operating mechanism to rotate via the connecting rod 107. The rotation direction of the handle 101 is opposite to the rotation direction of the disengagement mechanism; that is, when the handle 101 rotates clockwise, the operating mechanism rotates counterclockwise. When the handle 101 rotates counterclockwise, the operating mechanism rotates clockwise.

[0038] It should be noted that the circuit breaker housing 100 of this application embodiment is provided with a first chamber 103 and a second chamber 104 arranged along the first direction 102. The electric operation module 105 is placed in the first chamber 103, which avoids space competition with the operating area of ​​the handle 101 and solves the problem that the electric operation module 105 cannot be arranged due to the large space occupied by the operating mechanism in the traditional design.

[0039] It should be noted that, in this embodiment, the first chamber 103 and the second chamber 104 are arranged in communication along the first direction 102, and the handle 101 and the electrical operation module 105 are arranged in the first chamber 103 along the second direction 106. The handle 101 and the electrical operation module 105 have a certain distance between them in the second direction 106, which realizes spatial isolation between the electrical operation module 105 and the rotating part of the handle 101, and avoids interference between the handle 101 and the connecting rod 107 and the electrical operation module 105. In addition, the electrical operation module 105 is located above the operating mechanism, and the two have a certain distance between them to avoid structural interference with the operating mechanism. In this layout, not only is a compact structural arrangement achieved and space utilization improved, but the operating surface 123 can also realize quick operation of the electrical operation module 105, improving the functionality of the circuit breaker.

[0040] The technical effects that the embodiments of this application can produce are as follows:

[0041] The embodiments of this application can improve the functional integration. By placing the electric operation module 105 in an independent chamber, the embodiments of this application can not only provide space for the circuit board 122, but also directly install the electric operation module 105 on the circuit board 122. This allows more electronic functions, such as electric opening and closing buttons and indicator lights, to be integrated on the operating surface 123 of the circuit breaker, thereby improving the overall functionality of the equipment.

[0042] The embodiments of this application can enhance the user experience, making it easier for users to use functions such as electric opening and closing in emergency situations or when frequent operations are required. This reduces the difficulty of operation and improves the convenience and safety of use.

[0043] The embodiments of this application adopt a compartmentalized chamber design and a special linkage method between the handle 101 and the operating mechanism, which not only optimizes the layout of internal components and reduces space waste, but also ensures the reliability and efficiency of mechanical operation.

[0044] Reference Figure 2 , Figure 3As shown, in one optional implementation, the reset spring is a compression spring element 109, and a spindle 108 is provided in the second chamber 104; the compression spring element 109 is sleeved on the spindle 108, and the compression spring element 109 abuts against the operating mechanism; the operating mechanism is provided with a moving contact 110, and the operating mechanism drives the moving contact 110 to close the circuit, and the compression spring element 109 is compressed to store elastic force; the spindle 108, the rotation center of the operating mechanism, and the electric operating module 105 are arranged sequentially along the first direction 102.

[0045] In this embodiment, a spindle 108 is added to the second chamber 104. The spindle 108 is mainly used to mount and support the spring element 109. The spring element 109 is sleeved on the spindle 108, and one end of the spring element 109 abuts against the operating mechanism. When the operating mechanism is activated, it can compress or release the spring element 109, storing or releasing elastic force. The operating mechanism in this embodiment is equipped with a moving contact 110, and the opening and closing operations are achieved through the operation of the operating mechanism. Specifically, during the closing process, the operating mechanism drives the moving contact 110 to move, while the spring element 109 is compressed to store elastic force. During the opening process, the spring element 109 releases its elastic force to push the operating mechanism to rotate, causing the moving contact 110 to move away from the stationary contact, thus opening the circuit.

[0046] It should be noted that the spring element 109 is typically a relatively long spring. During closing compression, the spring element 109 is prone to bending, resulting in a reduction in the elastic thrust generated by the spring element 109 and thus a decrease in the opening force applied to the operating mechanism. In fault conditions, the reduced spring thrust affects the circuit breaker's opening sensitivity and safety. Furthermore, bending of the spring element 109 also leads to a larger structural component volume, which is detrimental to reducing the size of the housing 100. If the housing 100 volume is reduced to achieve compact assembly, the bent spring element 109 is more likely to collide and interfere with other structural components.

[0047] Reference Figure 2 , Figure 3 As shown, in this embodiment of the application, the mandrel 108 can prevent the spring element 109 from bending, thereby preventing the spring element 109 from occupying a large space in the first direction 102. At the same time, it can avoid interference with other structural components, thereby reducing the assembly space occupied by the entire operating mechanism, so as to reserve space for the electric operating module 105.

[0048] It should be noted that, in this embodiment of the application, the spindle 108, the rotation center of the operating mechanism, and the electric operating module 105 are arranged sequentially along the first direction 102.

[0049] In this embodiment, the handle 101 and the compression spring element 109 are located on opposite sides of the moving contact 110. To ensure that the movement direction of the handle 101 is consistent with the installation direction of the compression spring element 109 and the spindle 108, the rotation direction of the operating mechanism is opposite to that of the handle 101. Therefore, even when the spindle 108 is located below the rotation center of the disengagement mechanism, it can still be compressed in a direction away from the handle 101.

[0050] The effects that the embodiments of this application can produce are:

[0051] The embodiments of this application can improve mechanical stability. By introducing a compression spring element 109, the operating mechanism can be opened more quickly in the event of a fault by releasing elastic potential energy, thus reducing the impact of the fault. In addition, when in the open position, the compression spring element can provide additional elastic support when the operating mechanism is in motion, which helps to absorb impact force, reduce wear between mechanical parts, and thus extend the service life of the equipment.

[0052] The embodiments of this application can optimize space utilization, ensuring the functional independence of each component while achieving a compact design, making the entire circuit breaker structure more compact and reasonable, and suitable for more application scenarios.

[0053] Reference Figure 3 , Figure 4 as well as Figure 5 As shown, in one optional implementation, the operating mechanism has a first spindle hole 111; one end of the spindle 108 abuts against the housing 100 and the other end passes through the first spindle hole 111; the spindle 108 has a first limiting part near the abutting end, and the first limiting part abuts against the compression spring element 109.

[0054] As an optional implementation, a second spindle hole is provided on the housing 100; one end of the spindle 108 abuts against the operating mechanism and the other end passes through the second spindle hole; a second limiting part is provided at the end of the spindle 108 near the operating mechanism, and the second limiting part abuts against the compression spring element 109.

[0055] Unlike the above implementation method, refer to Figure 2 As shown, the spindle 108 includes a first shaft 112 and a second shaft 113; the first shaft 112 and the second shaft 113 extend in the same direction and are spaced apart; the end of the first shaft 112 away from the second shaft 113 abuts against the operating mechanism, and the end of the second shaft 113 away from the first shaft 112 abuts against the housing 100.

[0056] It should be noted that those skilled in the art can rotate the mandrel 108 in different ways as needed, and no special limitation is made in this regard. Among them, the mandrel 108 can be an optical axis, and its diameter can be selected as needed.

[0057] Furthermore, the housing 100 is provided with a receiving groove, and the spindle 108 is installed in the receiving groove, with a pre-reserved gap between the inner wall of the receiving groove and the spindle 108.

[0058] It should be noted that, in this embodiment, a dedicated receiving groove for mounting the mandrel 108 is added within the housing 100. The mandrel 108 is mounted in the receiving groove, and a certain distance is reserved between the mandrel 108 and the inner wall of the receiving groove. By leaving a certain distance between the mandrel 108 and the inner wall of the receiving groove, direct contact between the two can be effectively reduced, thereby reducing friction and wear. This not only helps to extend the service life of the mandrel 108 and its supporting structure but also reduces the risk of mechanical failure due to long-term use.

[0059] It should be noted that the operating mechanism will cause the spindle 108 to float to a certain extent during rotation.

[0060] The reserved spacing design allows the mandrel 108 to float freely to a certain extent, enabling it to adjust its position more flexibly under load, thereby improving the overall operational stability and reliability of the mechanism. Especially in high-pressure or frequent operation environments, this design can significantly reduce vibration and noise, enhancing the user experience.

[0061] Reference Figure 3 , Figure 4 , Figure 5 as well as Figure 6 As shown, in one optional embodiment, the operating mechanism includes a mechanism base 114 and a latch 115; the mechanism base 114 is provided with a rotating part 116; both the latch 115 and the moving contact 110 can move around the rotating part 116; a first torsion spring 117 and a second torsion spring 118 are sleeved on the rotating part 116, one end of the first torsion spring 117 abuts against the moving contact 110, and the compression of the first torsion spring 117 generates a force that pushes the moving contact 110 against the mechanism base 114; one end of the second torsion spring 118 abuts against the latch 115, and the compression of the second torsion spring 118 generates a force that pushes the latch 115 against the mechanism base 114.

[0062] It should be noted that in this embodiment, the rotation centers of the latch 115, moving contact 110, first torsion spring 117, and second torsion spring 118 coincide. This allows these components to work collaboratively within a very compact space. In related technologies, the rotation centers of the torsion spring and the mechanism base 114 are different, thus requiring more space to arrange the positions and movement trajectories of each component, resulting in a larger overall structure.

[0063] The centralized rotation center in this embodiment reduces the need for complex mechanical connections and transmission devices, simplifying the internal structure. This not only saves space but also reduces manufacturing costs and improves assembly efficiency. Since all key components are arranged around the same rotation center, limited space can be utilized more efficiently. For example, the first torsion spring 117 and the second torsion spring 118 can be closely arranged on both sides of the mechanism base 114, thereby reducing the additional space requirements caused by dispersed arrangement.

[0064] It should be noted that the complete operation process of this application embodiment is as follows:

[0065] In the open state according to this embodiment, the spring element 109 abuts against the mechanism seat 114, and then the mechanism seat 114 abuts against the moving contact 110 and the contact limiting structure 121. The spring element 109 acts on the mechanism seat 114 to provide a reset force for the mechanism seat 114. The first torsion spring 117 acts on the mechanism seat 114 and the moving contact 110, causing the mechanism seat 114 to abut against the moving contact 110, and is used to provide contact pressure. The second torsion spring 118 acts on the latch 115 and the mechanism seat 114, causing the latch 115 to abut against the mechanism seat 114.

[0066] During the closing action, the connecting rod 107 directly contacts the latch 115 and the mechanism seat 114. The handle 101 directly drives the latch 115 and the mechanism seat 114 to move via the connecting rod 107 until the moving contact 110 abuts against the stationary contact. In this action, the rotation direction of the handle 101 is opposite to that of the mechanism seat 114. Specifically, the handle 101 rotates clockwise, and the mechanism seat 114 rotates counterclockwise. During the operation, the compression spring element 109 continuously compresses the stored elastic force.

[0067] During the overtravel motion after the moving contact 110 contacts the stationary contact, the handle 101 drives the mechanism seat 114 and the latch 115 to continue moving, that is, the mechanism seat 114 and the moving contact 110 generate relative movement. At this time, the first torsion spring 117 is compressed and stores energy, and the first torsion spring 117 generates contact pressure to ensure that the moving contact 110 abuts against the stationary contact. At this time, the compression spring element 109 also continues to compress and store elastic force.

[0068] During the tripping action, the trip unit 119 pushes the latch 115 via the push rod 120, causing the latch 115 to move relative to the mechanism seat 114, thus releasing the latch 115 from its previous contact with the mechanism seat 114. At this time, the second torsion spring 118 is compressed and stores energy. Due to the release of the latch 115, the connecting rod 107 loses support and becomes unbalanced. At this time, the connecting rod 107 releases its contact with the mechanism seat 114, and the compression spring element 109 releases its elastic potential energy to push the moving contact 110 into the open state. Among them, the release of elastic potential energy by the first torsion spring 117 and the second torsion spring 118 keeps the entire structure in its initial contact relationship.

[0069] The housing 100 is provided with a release device 119, and the release device 119 is provided with a push rod 120. The release device 119 drives the push rod 120 to move along the first direction 102, so that the push rod 120 pushes the latch 115 to move around the rotating part 116.

[0070] It should be noted that in this embodiment, the top rod 120 is arranged along the height direction of the circuit breaker, which can make full use of the vertical space inside the equipment without occupying the horizontal or vertical space, which is conducive to achieving a compact overall arrangement.

[0071] Furthermore, because the push rod 120 moves along the height direction, the effect of lateral forces is reduced, thereby lowering the lateral stress exerted on other components. This design helps improve the stability and reliability of the entire operating mechanism, preventing component deformation or damage caused by lateral forces.

[0072] As an optional implementation, the mechanism base 114 is provided with a clearance groove; the contact head of the moving contact 110 can pass through the clearance groove.

[0073] It should be noted that the thickness of the contact head of the moving contact 110 is less than or equal to the width of the clearance groove, which facilitates the quick assembly of the moving contact 110 on the mechanism seat 114.

[0074] The moving contact 110 has a wire bonding area where a flexible connecting wire is bonded. This bonding area is located away from the contact head and close to the rotation center. This arrangement helps to reduce the range of motion of the flexible wire, prevents it from affecting the movement of the moving contact 110, and improves safety.

[0075] Reference Figure 3 , Figure 4 as well as Figure 5 As shown, as an optional implementation, the housing 100 is provided with a contact limiting structure 121; when the moving contact 110 is open, the elastic force provided by the compression spring element 109 causes the moving contact 110 to abut against the contact limiting structure 121.

[0076] It should be noted that the mechanism seat 114 can drive the moving contact 110 to rotate counterclockwise under the elastic force of the compression spring element 109 until it abuts against the contact limiting structure 121. The specific structure of the contact limiting structure 121 can be configured as needed by those skilled in the art, and no special limitations are made therein.

[0077] 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 circuit breaker, characterized in that, The device includes a housing (100), a handle (101), and an operating mechanism. The housing (100) forms a first chamber (103) and a second chamber (104) arranged in communication along a first direction (102), with the first chamber (103) located at the top of the second chamber (104). An electric operating module (105) is provided in the first chamber (103). The handle (101) and the electric operating module (105) are arranged in the first chamber (103) along a second direction (106). The first direction (102) and the second direction (106) are perpendicular. The handle (101) is driven to rotate and drives the operating mechanism to rotate to the closed position via a connecting rod (107). The rotation direction of the handle (101) is opposite to the rotation direction of the operating mechanism. The operating mechanism includes a reset spring disposed in the second chamber (104), which generates an elastic force to move the operating mechanism to the open position.

2. The circuit breaker according to claim 1, characterized in that, The reset spring is a compression spring element (109), and a spindle (108) is provided in the second chamber (104); the compression spring element (109) is sleeved on the spindle (108), and the compression spring element (109) abuts against the operating mechanism; the operating mechanism is provided with a moving contact (110), and the operating mechanism drives the moving contact (110) to close the circuit, and the compression spring element (109) compresses and stores elastic force; the spindle (108), the rotation center of the operating mechanism, and the electric operating module (105) are arranged sequentially along the first direction (102).

3. The circuit breaker according to claim 2, characterized in that, The operating mechanism has a first spindle hole (111); one end of the spindle (108) abuts against the housing (100) and the other end passes through the first spindle hole (111); the spindle (108) has a first limiting part near the abutting end, and the first limiting part abuts against the compression spring element (109).

4. The circuit breaker according to claim 2, characterized in that, The housing (100) has a second spindle hole; one end of the spindle (108) abuts against the operating mechanism and the other end passes through the second spindle hole; the housing (100) has a second limiting part, and one end of the compression spring element (109) abuts against the second limiting part and the other end abuts against the outer ring of the second spindle hole.

5. The circuit breaker according to claim 2, characterized in that, The spindle (108) includes a first shaft (112) and a second shaft (113); the first shaft (112) and the second shaft (113) extend in the same direction and are spaced apart; the end of the first shaft (112) away from the second shaft (113) abuts against the operating mechanism, and the end of the second shaft (113) away from the first shaft (112) abuts against the housing (100).

6. The circuit breaker according to claim 2, characterized in that, The housing (100) is provided with a receiving groove, and the mandrel (108) is installed in the receiving groove. The inner wall of the receiving groove and the mandrel (108) are reserved with a distance.

7. The circuit breaker according to any one of claims 1-6, characterized in that, The operating mechanism includes a mechanism base (114) and a latch (115); the mechanism base (114) is provided with a rotating part (116); the latch (115) and the moving contact (110) can both move around the rotating part (116); a first torsion spring (117) and a second torsion spring (118) are sleeved on the rotating part (116), one end of the first torsion spring (117) abuts against the moving contact (110), and the compression of the first torsion spring (117) generates a force that pushes the moving contact (110) to abut against the mechanism base (114); one end of the second torsion spring (118) abuts against the latch (115), and the compression of the second torsion spring (118) generates a force that pushes the latch (115) to abut against the mechanism base (114).

8. The circuit breaker according to claim 7, characterized in that, The mechanism base (114) is provided with a clearance groove; the contact head of the moving contact (110) can pass through the clearance groove.

9. The circuit breaker according to any one of claims 2-6, characterized in that, The housing (100) is provided with a contact limiting structure (121); when the moving contact (110) is opened, the elastic force provided by the compression spring element (109) causes the moving contact (110) to abut against the contact limiting structure (121).

10. The circuit breaker according to any one of claims 1-6 and claim 8, characterized in that, The housing (100) is provided with a circuit board (122); part of the circuit board (122) is arranged in the first chamber (103); the electrical operation module (105) includes a circuit breaker button provided on part of the circuit board (122).

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