Circuit breaker and electrical equipment

Abstract

The utility model provides a circuit breaker and electrical equipment, and relates to the technical field of electrical equipment. The circuit breaker comprises a shell, an electromagnetic actuator, a handle, an electromagnetic release and a thermal release processor. The shell is provided with a first mounting chamber and a second mounting chamber which are communicated with each other, and the first mounting chamber is located at the top of the second mounting chamber; the electromagnetic actuator and the handle are connected and arranged in the first mounting cavity, the electromagnetic actuator and the handle are arranged in the first mounting cavity in the first direction, the axis direction of the electromagnetic actuator is parallel to the first direction, and the first direction is the length direction of the shell; the electromagnetic release and the thermal release processor are arranged in the second installation chamber. The circuit breaker is simple in structure, a plurality of electrical elements are reasonably arranged in the first mounting cavity and the second mounting cavity, and are regularly and compactly mounted, and the mounting space of the shell is effectively utilized, so that the size of the circuit breaker is reduced, the production and equipment efficiency is improved, and the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical equipment technical field, specifically, a circuit breaker and electrical equipment. BACKGROUND

[0002] A circuit breaker is a device used to protect electrical circuits and equipment from damage caused by overloads or short circuits. They are widely used in various electrical systems to ensure the safety and reliability of the system.

[0003] However, the layout of multiple electrical elements in the existing circuit breaker is unreasonable, which not only leads to a large size of the circuit breaker, but also increases the assembly difficulty, thus making the cost of the circuit breaker higher. SUMMARY

[0004] The utility model discloses a circuit breaker and electrical equipment, the circuit breaker of which is simple in structure, and multiple electrical elements inside are reasonably arranged, so as to reduce the occupied space of internal elements, thereby reducing the size of the circuit breaker, the assembly difficulty and the production cost.

[0005] The embodiment of the utility model is implemented as follows:

[0006] In a first aspect, the utility model provides a circuit breaker, which comprises a shell, an electromagnetic actuator, a handle, an electromagnetic release and a thermal release processor.

[0007] The shell is provided with a first installation chamber and a second installation chamber in communication, and the first installation chamber is located at the top of the second installation chamber.

[0008] The electromagnetic actuator is connected with the handle and arranged in the first installation chamber, and the electromagnetic actuator and the handle are arranged in the first installation chamber along a first direction, the axis direction of the electromagnetic actuator is parallel to the first direction, and the first direction is the length direction of the shell.

[0009] The electromagnetic release and the thermal release processor are arranged in the second installation chamber.

[0010] In an optional embodiment, the axis direction of the electromagnetic release is parallel to the axis direction of the electromagnetic actuator, and the electromagnetic release is located below the electromagnetic actuator and close to one side of the handle.

[0011] In an optional embodiment, the circuit breaker further comprises an outgoing terminal and an incoming terminal, and the outgoing terminal and the incoming terminal are arranged on both sides of the second installation chamber respectively, and the handle is located on one side of the first installation chamber close to the outgoing terminal.

[0012] In an optional embodiment, the circuit breaker further comprises an arc extinguishing chamber, which is arranged in the second mounting chamber and adjacent to the outgoing terminal.

[0013] In an optional embodiment, the thermal trip processor comprises a circuit board and a sensor, and the outgoing terminal, the arc extinguishing chamber, the circuit board, the sensor and the incoming terminal are arranged in the first direction in sequence.

[0014] In an optional embodiment, the circuit breaker further comprises a movable contact assembly, which is arranged in the second mounting chamber.

[0015] In the first direction, one side of the movable contact assembly is adjacent to the outgoing terminal, and the other side is adjacent to the electromagnetic trip unit.

[0016] In a second direction perpendicular to the first direction, the top of the movable contact assembly is adjacent to the side of the handle away from the electromagnetic actuator, and the bottom of the movable contact assembly is adjacent to the arc extinguishing chamber.

[0017] In an optional embodiment, the movable contact assembly and the handle are connected through a connecting rod, and the rotation axis of the movable contact assembly is below the rotation axis of the connecting rod.

[0018] In an optional embodiment, the second mounting chamber comprises a first region, a second region, a third region and a fourth region connected in the first direction in sequence, the incoming terminal is located in the first region, the arc extinguishing chamber and the movable contact assembly are located in the second region, the electromagnetic trip unit and the thermal trip processor are arranged in the third region, and the incoming terminal and part of the thermal trip processor are located in the fourth region.

[0019] In an optional embodiment, the circuit breaker further comprises a pole connecting terminal, and the outer bottom wall of the second mounting chamber is recessed with a mounting portion, and the pole connecting terminal is arranged in the mounting portion.

[0020] In a second aspect, the utility model provides an electrical equipment, comprising the circuit breaker of any one of the preceding embodiments.

[0021] The circuit breaker and the electrical equipment have the beneficial effects that the handle and the electromagnetic actuator are arranged in the first installation chamber, and the handle part of the handle is arranged outside the first installation chamber, so that the operator can pull the handle to perform manual operation; the electromagnetic actuator and the handle are arranged along the length direction of the shell in the first installation chamber, that is, the electromagnetic actuator is located on one side of the handle, so that the handle can be conveniently driven to rotate by the electromagnetic actuator to realize the electric closing function, and the space of the first installation chamber is fully utilized; the electromagnetic release and the thermal release processor are arranged in the second installation chamber, the electric opening function can be realized by the release function of the electromagnetic release in the circuit fault condition, and the electric signal is recognized by the thermal release processor. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced below, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 The circuit breaker structure schematic diagram one provided by the embodiments of the present application is shown in the figure.

[0024] Figure 2 The circuit breaker structure schematic diagram two provided by the embodiments of the present application is shown in the figure.

[0025] Icon: 10-circuit breaker; 100-shell; 110-first installation chamber; 120-second installation chamber; 121-first area; 122-second area; 123-third area; 124-fourth area; 130-installation part; 200-electromagnetic actuator; 300-handle; 400-electromagnetic release; 500-thermal release processor; 510-circuit board; 520-sensor; 600-outgoing terminal; 700-incoming terminal; 800-arc extinguishing chamber; 900-moving contact assembly; 1000-pole terminal. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0028] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships in which the product of the present application is usually placed during use, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, the terms "horizontal", "vertical", etc. do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0031] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] A circuit breaker is a device used to protect electrical lines and equipment from damage caused by overload or short circuit. They are widely used in various electrical systems to ensure the safety and reliability of the system.

[0033] However, the unreasonable layout of multiple electrical components in existing circuit breakers not only results in large circuit breaker size but also increases assembly difficulty, thus making the circuit breaker cost higher.

[0034] Based on the above issues, please refer to Figure 1 and Figure 2 This utility model provides a circuit breaker 10, which is applied to low-voltage electrical equipment. The circuit breaker 10 provided by this utility model has a simple structure and a reasonable layout of multiple internal electrical components, thereby reducing the space occupied by the internal components, thus reducing the volume of the circuit breaker 10, simplifying the production process, improving production and equipment efficiency, and reducing manufacturing costs.

[0035] In detail, the circuit breaker 10 includes a housing 100, an electromagnetic actuator 200, a handle 300, an electromagnetic trip unit 400, and a thermal trip processor 500.

[0036] The housing 100 is provided with a first mounting chamber 110 and a second mounting chamber 120 that are connected. The first mounting chamber 110 is located on top of the second mounting chamber 120, so that the structure of the housing 100 is convex.

[0037] The electromagnetic actuator 200 is connected to the handle 300 and is both located in the first mounting chamber 110. The electromagnetic actuator 200 and the handle 300 are arranged in the first mounting chamber 110 along a first direction. The axial direction of the electromagnetic actuator 200 is parallel to the first direction, which is the length direction of the housing 100. The electromagnetic trip unit 400 and the thermal trip processor 500 are both located in the second mounting chamber 120.

[0038] It should be noted that the electromagnetic actuator 200 is connected to the handle 300 in a transmission manner; the first direction is also the horizontal X direction as shown in the figure.

[0039] In the embodiment, the volume of the first installation chamber 110 is smaller than the volume of the second installation chamber 120, therefore, the handle 300 and the electromagnetic actuator 200 are arranged in the first installation chamber 110, and the handle part of the handle 300 is arranged outside the first installation chamber 110, so as to facilitate the operator to pull the handle 300 to perform manual operation; and the electromagnetic actuator 200 and the handle 300 are arranged along the length direction of the shell 100 in the first installation chamber 110, that is, the electromagnetic actuator 200 is located on one side of the handle 300, which can facilitate the rotation of the handle 300 driven by the electromagnetic actuator 200 to realize the electric closing function, and fully utilize the space of the first installation chamber 110; and the electromagnetic release 400 and the thermal release processor 500 are arranged in the second installation chamber 120, the electromagnetic release 400 can realize the electric opening function through the release function in the case of circuit failure, and the thermal release processor 500 can identify the electric signal.

[0040] Therefore, the circuit breaker 10 has simple structure, the multiple electrical elements are reasonably arranged in the first installation chamber 110 and the second installation chamber 120, and the installation is regular and compact, the installation space of the shell 100 is effectively utilized, and therefore the volume of the circuit breaker 10 is reduced, the production and equipment efficiency are improved, and the manufacturing cost is reduced.

[0041] Further, the axis direction of the electromagnetic release 400 is parallel to the axis direction of the electromagnetic actuator 200, and the electromagnetic release 400 is located below the electromagnetic actuator 200 and close to one side of the handle 300.

[0042] In the embodiment, the axis direction of the electromagnetic release 400 and the axis direction of the electromagnetic actuator 200 are parallel to the length direction of the shell 100, so that the electromagnetic release 400 and the electromagnetic actuator 200 are more regularly and compactly distributed in the shell 100, and the layout of the circuit breaker 10 is reasonable.

[0043] Further, the circuit breaker 10 further comprises an outgoing terminal 600 and an incoming terminal 700, the outgoing terminal 600 and the incoming terminal 700 are arranged on the left and right sides of the second installation chamber 120, and the handle 300 is located on the left side of the first installation chamber 110 close to the outgoing terminal 600.

[0044] In the embodiment, the outgoing terminal 600 and the incoming terminal 700 are arranged on the left and right sides of the second installation chamber 120 respectively, so as to form a loop by connecting the outgoing terminal 600 and the incoming terminal 700 with an external circuit; and the handle 300 is located on the left side of the first installation chamber 110 close to the outgoing terminal 600, therefore, the electromagnetic actuator 200 is located on the right side of the first installation chamber 110 close to the incoming terminal 700, so that the layout of the circuit breaker 10 is reasonable.

[0045] Further, the circuit breaker 10 further comprises an arc extinguishing chamber 800, which is arranged in the second installation chamber 120 and adjacent to the outgoing terminal 600.

[0046] In the embodiment, the arc extinguishing chamber 800 is arranged to extinguish the arc generated in the process of opening and closing, so as to improve the safety and service life of the circuit breaker 10; the left side of the arc extinguishing chamber 800 is adjacent to the outgoing terminal 600, and the right side is adjacent to the thermal trip processor 500, so that the outgoing terminal 600, the arc extinguishing chamber 800 and the thermal trip processor 500 are arranged more regularly and compactly in the second installation chamber 120, so as to improve the space utilization in the circuit breaker 10 and make the circuit breaker 10 arranged reasonably.

[0047] Further, the thermal trip processor 500 comprises a circuit board 510 and a sensor 520, and the outgoing terminal 600, the arc extinguishing chamber 800, the circuit board 510, the sensor 520 and the incoming terminal 700 are arranged in sequence along the first direction.

[0048] In the embodiment, the sensor 520 is adjacent to and located on the left side of the incoming terminal 700, and the sensor 520 is used to identify the electrical signal; the circuit board 510 is adjacent to and located on the right side of the arc extinguishing chamber 800, in other words, the outgoing terminal 600, the arc extinguishing chamber 800, the circuit board 510, the sensor 520 and the incoming terminal 700 are arranged in sequence along the horizontal first direction in the second installation chamber 120, so that the outgoing terminal 600, the arc extinguishing chamber 800, the circuit board 510, the sensor 520 and the incoming terminal 700 are arranged more regularly and compactly in the second installation chamber 120, so as to improve the space utilization in the circuit breaker 10 and make the circuit breaker 10 arranged reasonably.

[0049] It is worth mentioning that the electromagnetic trip 400 is located on the upper left side of the circuit board 510.

[0050] Further, the circuit breaker 10 further comprises a movable contact assembly 900, which is arranged in the second installation chamber 120; along the first direction, one side of the movable contact assembly 900 is adjacent to the outgoing terminal 600, and the other side is adjacent to the electromagnetic trip 400; along the second direction perpendicular to the first direction, the top of the movable contact assembly 900 is adjacent to the side of the bottom of the handle 300 away from the electromagnetic actuator 200, and the bottom of the movable contact assembly 900 is adjacent to the arc extinguishing chamber 800.

[0051] It should be noted that the second direction is the height direction of the shell 100, and is also the vertical Y direction shown in the figure.

[0052] In other words, taking the drawing as an example, the movable contact assembly 900 is located at the lower left side of the handle 300 and vertically above the arc extinguishing chamber 800, the left side of the movable contact assembly 900 is adjacent to the outgoing terminal 600, and the right side is adjacent to the electromagnetic release 400, so it can be seen that the outgoing terminal 600, the movable contact assembly 900, the arc extinguishing chamber 800, the electromagnetic release 400, the circuit board 510, the sensor 520, and the incoming terminal 700 are arranged regularly and compactly in the second installation chamber 120, effectively utilizing the internal space of the shell 100.

[0053] In detail, the movable contact assembly 900 and the handle 300 are connected by a connecting rod, and the rotation axis of the movable contact assembly 900 is located below the rotation axis of the connecting rod.

[0054] Further, the second installation chamber 120 includes a first area 121, a second area 122, a third area 123, and a fourth area 124 connected in sequence along the first direction, the incoming terminal 700 is located in the first area 121, the arc extinguishing chamber 800 and the movable contact assembly 900 are located in the second area 122, the electromagnetic release 400 and the thermal release processor 500 are both arranged in the third area 123, and the incoming terminal 700 and part of the thermal release processor 500 are located in the fourth area 124.

[0055] First of all, it needs to be pointed out that the first installation chamber 110, the first area 121, the second area 122, the third area 123, and the fourth area 124 are distinguished by the dashed line in the drawing, which is a general distinction and is only for illustration, not for actual structure.

[0056] In this embodiment, taking the drawing as an example, the first area 121, the second area 122, the third area 123, and the fourth area 124 are connected in sequence along the first direction, and the incoming terminal 700 is located in the first area 121, the arc extinguishing chamber 800 and the movable contact assembly 900 are located in the second area 122, the electromagnetic release 400, the circuit board 510, and the sensor 520 are all arranged in the third area 123, and the incoming terminal 700 and part of the circuit board 510 are located in the fourth area 124, so it can be seen that the outgoing terminal 600, the movable contact assembly 900, the arc extinguishing chamber 800, the electromagnetic release 400, the circuit board 510, the sensor 520, and the incoming terminal 700 are regularly and compactly distributed in the second installation chamber 120, effectively utilizing the internal space of the shell 100, thereby making the layout of the circuit breaker 10 reasonable.

[0057] Further, the circuit breaker 10 further includes a pole connecting terminal 1000, and the outer bottom wall of the second installation chamber 120 is recessed with a mounting portion 130, and the pole connecting terminal 1000 is arranged in the mounting portion 130.

[0058] In the embodiment, the mounting portion 130 is arranged at the outer bottom of the second mounting chamber 120, the pole connection terminal 1000 is arranged at the mounting portion 130, and the mounting portion 130 is in a recessed structure, so as to avoid increasing the volume of the circuit breaker 10 due to mounting of the pole connection terminal 1000, and thus the circuit breaker 10 is rationally arranged.

[0059] In conclusion, the circuit breaker 10 is provided, the handle 300 and the electromagnetic actuator 200 are arranged in the first mounting chamber 110, and the handle part of the handle 300 is arranged outside the first mounting chamber 110, so as to facilitate an operator to pull the handle 300 to perform manual operation; the electromagnetic actuator 200 and the handle 300 are arranged along the length direction of the shell 100 in the first mounting chamber 110, that is, the electromagnetic actuator 200 is arranged on one side of the handle 300, so as to facilitate the handle 300 to be driven to rotate by the electromagnetic actuator 200 to realize electric closing function, and the space of the first mounting chamber 110 is fully utilized; the electromagnetic release 400 and the thermal release processor 500 are arranged in the second mounting chamber 120, the electric opening function is realized by the electromagnetic release 400 under the condition of circuit failure, and the electric signal is recognized by the thermal release processor 500. It can be seen that the circuit breaker 10 provided by the utility model has simple structure, the multiple electrical elements are rationally arranged in the first mounting chamber 110 and the second mounting chamber 120, the installation is regular and compact, the mounting space of the shell 100 is effectively utilized, and thus the volume of the circuit breaker 10 is reduced, so as to improve production and equipment efficiency and reduce manufacturing cost.

[0060] Further, the utility model provides an electrical equipment, including the circuit breaker 10 in above-mentioned embodiment.

[0061] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model, and the utility model can have various changes and changes for the person skilled in the art. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A circuit breaker (10) characterized by, The circuit breaker (10) comprises a shell (100), an electromagnetic actuator (200), a handle (300), an electromagnetic tripping device (400) and a thermal tripping processor (500); The shell (100) is provided with a first installation chamber (110) and a second installation chamber (120) in communication, the first installation chamber (110) is located on top of the second installation chamber (120); The electromagnetic actuator (200) and the handle (300) are connected and arranged in the first installation chamber (110), the electromagnetic actuator (200) and the handle (300) are arranged in the first direction in the first installation chamber (110), the axis direction of the electromagnetic actuator (200) is parallel to the first direction, and the first direction is the length direction of the shell (100); The electromagnetic tripping device (400) and the thermal tripping processor (500) are arranged in the second installation chamber (120).

2. The circuit breaker (10) of claim 1, characterized in that The axis direction of the electromagnetic tripping device (400) is parallel to the axis direction of the electromagnetic actuator (200), and the electromagnetic tripping device (400) is located below the electromagnetic actuator (200) and close to one side of the handle (300).

3. The circuit breaker (10) of claim 1, wherein, The circuit breaker (10) further comprises an outgoing terminal (600) and an incoming terminal (700), the outgoing terminal (600) and the incoming terminal (700) are arranged on both sides of the second installation chamber (120), and the handle (300) is arranged on one side of the first installation chamber (110) close to the outgoing terminal (600).

4. The circuit breaker (10) of claim 3, characterized in that The circuit breaker (10) further comprises an arc-extinguishing chamber (800), the arc-extinguishing chamber (800) is arranged in the second installation chamber (120) and adjacent to the outgoing terminal (600).

5. The circuit breaker (10) of claim 4, characterized in that The thermal tripping processor (500) comprises a circuit board (510) and a sensor (520), the outgoing terminal (600), the arc-extinguishing chamber (800), the circuit board (510), the sensor (520) and the incoming terminal (700) are sequentially arranged in the first direction.

6. The circuit breaker (10) of claim 4, wherein, The circuit breaker (10) further comprises a movable contact assembly (900), the movable contact assembly (900) is arranged in the second installation chamber (120); In the first direction, one side of the movable contact assembly (900) is adjacent to the outgoing terminal (600), and the other side is adjacent to the electromagnetic tripping device (400); In the second direction perpendicular to the first direction, the top of the movable contact assembly (900) is adjacent to the side of the handle (300) away from the electromagnetic actuator (200), and the bottom of the movable contact assembly (900) is adjacent to the arc-extinguishing chamber (800).

7. The circuit breaker (10) of claim 6, characterized in that The movable contact assembly (900) and the handle (300) are connected through a connecting rod, and the rotation axis of the movable contact assembly (900) is located below the rotation axis of the connecting rod.

8. The circuit breaker (10) of claim 6, wherein, The second installation chamber (120) comprises a first area (121), a second area (122), a third area (123) and a fourth area (124) connected in sequence along the first direction, the line-in terminal (700) is located in the first area (121), the arc-extinguishing chamber (800) and the movable contact assembly (900) are located in the second area (122), the electromagnetic tripping device (400) and the thermal tripping processor (500) are both arranged in the third area (123), and the line-in terminal (700) and part of the thermal tripping processor (500) are located in the fourth area (124).

9. The circuit breaker (10) of claim 1, wherein, The circuit breaker (10) further comprises a pole connection terminal (1000), and an outer bottom wall of the second installation chamber (120) is concave to form an installation portion (130), and the pole connection terminal (1000) is arranged in the installation portion (130).

10. An electrical device, characterized by The circuit breaker (10) comprises the circuit breaker (10) according to any one of claims 1-9.

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