Electromagnetic assembly and circuit breaker

Abstract

The utility model discloses an electromagnetic assembly and a circuit breaker, and relates to the technical field of circuit breakers, the electromagnetic assembly is applied to the circuit breaker, the electromagnetic assembly comprises a coil, an iron core, a wiring board and a static contact, and the coil is wound on the iron core. The coil comprises a first connecting end and a second connecting end, the wiring board comprises a first wrapping part, and the static contact comprises a second wrapping part. At least part of the first connecting end is wrapped in the first wrapping part, the first connecting end is connected with the first wrapping part in a riveting mode, at least part of the second connecting end is wrapped in the second wrapping part, and the second connecting end is connected with the second wrapping part in a riveting mode. According to the electromagnetic assembly and the circuit breaker, the electrical connection stability of the electromagnetic assembly can be improved, and the risk that the circuit breaker breaks down is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of circuit breakers, and in particular to an electromagnetic component and a circuit breaker. Background Art

[0002] Circuit breakers are usually equipped with electromagnetic components, which can control the tripping mechanism in the circuit breaker to trip when a short circuit occurs in the circuit where the circuit breaker is located, so that the circuit breaker cuts off the circuit and protects the circuit and equipment from damage.

[0003] Electromagnetic components typically include a coil, an iron core, a terminal block, and a static contact. The coil is wound around the iron core and electrically connected between the terminal block and the static contact. Conventional terminal blocks and static contacts are typically made of copper, allowing for direct soldering to the copper coil. However, using coils made of other materials, such as aluminum or silver, can complicate soldering and create unstable connections, hindering the proper functioning of the electromagnetic assembly.

[0004] Therefore, there is an urgent need to propose an electromagnetic component to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this application is to provide an electromagnetic assembly and a circuit breaker, which can improve the electrical connection stability of the electromagnetic assembly and reduce the risk of circuit breaker failure.

[0006] In a first aspect, embodiments of the present application provide an electromagnetic assembly comprising a coil, an iron core, a terminal block, and a static contact, wherein the coil is wound around the iron core. The coil comprises a first connecting end and a second connecting end, the terminal block comprises a first enclosing portion, and the static contact comprises a second enclosing portion. The first connecting end is at least partially enclosed within the first enclosing portion and riveted to the first enclosing portion, and the second connecting end is at least partially enclosed within the second enclosing portion and riveted to the second enclosing portion.

[0007] Based on the above-described embodiments of the present application, by providing a first enclosing portion on the terminal block for enclosing the first connecting end of the coil, and providing a second enclosing portion on the static contact for enclosing the second connecting end of the coil, it is possible to achieve a stable connection between coils of different materials and the terminal block and the static contact. Furthermore, by enhancing the connection stability between the first connecting end and the first enclosing portion, and between the second connecting end and the second enclosing portion, through riveting, the coil and the terminal block, and the coil and the static contact, can maintain a relatively fixed and tight connection, thereby facilitating improved electrical connection stability between the coil and the terminal block and the static contact, ensuring that the electromagnetic assembly can provide stable electromagnetic tripping capability while reducing heat generation.

[0008] In some examples, the first enclosing portion is configured as a first groove, and the first groove correspondingly encloses at least a portion of the first connecting end.

[0009] Based on the above-mentioned embodiments of the present application, the first enclosing portion is set in the form of a first groove, which can enclose at least a portion of the first connection end. The structure is simple, which not only facilitates the connection operation but also provides a more stable connection.

[0010] In some examples, the first enclosing portion includes a first bottom plate, a first side plate, and a second side plate. The first side plate and the second side plate are relatively arranged on both sides of the first bottom plate. The first side plate, the second side plate, and the first bottom plate enclose each other to form a first groove.

[0011] Based on the above-mentioned embodiments of the present application, a first bottom plate is provided, and a first side plate and a second side plate are provided on both sides of the first bottom plate respectively. In this way, a first groove can be formed at the first bottom plate through the first side plate and the second side plate, so that an enclosing connection of the first connection end can be achieved through the first groove. The structure is simple, easy to assemble, and the connection stability can be improved with the cooperation of the first side plate and the second side plate.

[0012] In some examples, the second enclosing portion is configured as a second groove, and the second groove correspondingly encloses at least a portion of the second connecting end.

[0013] Based on the above-mentioned embodiments of the present application, the second enclosing portion is set in the form of a second groove, which is used to enclose at least part of the second connection end. Like the first enclosing portion, it has the advantages of simple structure, easy connection operation and stable connection.

[0014] In some examples, the second enclosing portion includes a second bottom plate, a third side plate, and a fourth side plate. The third side plate and the fourth side plate are relatively arranged on both sides of the second bottom plate. The third side plate, the fourth side plate, and the second bottom plate enclose each other to form a second groove.

[0015] Based on the above-mentioned embodiments of the present application, by setting a second base plate, and setting a third side plate and a fourth side plate on both sides of the second base plate respectively, a second groove can be formed at the second base plate through the third side plate and the fourth side plate, so that the second connection end can be enclosed and connected through the second groove. The structure is simple, easy to assemble, and the connection stability can be improved with the cooperation of the third side plate and the fourth side plate.

[0016] In some examples, the first side panel and the second side panel are both configured to be arc-shaped and are bent toward each other.

[0017] Based on the above-mentioned embodiments of the present application, by setting the first side panel and the second side panel to be arc-shaped, the first side panel and the second side panel can fit the first connection end more closely when enclosing the first connection end, thereby improving the connection tightness between the first connection end and the first enclosing portion.

[0018] In some examples, the third side panel and the fourth side panel are both configured to be arc-shaped and are bent toward each other.

[0019] Based on the above-mentioned embodiments of the present application, by setting the third side panel and the fourth side panel to be arc-shaped, the third side panel and the fourth side panel can fit the second connection end more closely when enclosing the second connection end, thereby improving the connection tightness between the second connection end and the second enclosing portion.

[0020] In some examples, the first connecting end includes a first avoidance surface, the first enclosing portion includes a first opening, and the first avoidance surface is adapted to the first opening; the second connecting end includes a second avoidance surface, the second enclosing portion includes a second opening, and the second avoidance surface is adapted to the second opening.

[0021] Based on the aforementioned embodiments of this application, the provision of the first relief surface can be used to avoid interference with other components, such as the iron core, during assembly. Furthermore, the first relief surface can reduce the volume of the first connecting end, facilitating the first and second side panels to enclose the first connecting end, thereby avoiding the problem of the first slot being unable to effectively enclose the first connecting end due to its excessive size. The second relief surface has the same configuration as the first relief surface and achieves the same technical effect.

[0022] In some examples, the first enclosing portion includes a first hole, the first connecting end is correspondingly connected to the first hole, and the second enclosing portion includes a second hole, the second connecting end is correspondingly connected to the second hole.

[0023] Based on the above-described embodiments of this application, by configuring the first enclosing portion as a first hole, the first connection end of the coil can be directly inserted into the first hole, effectively simplifying the connection between the terminal block and the coil. Furthermore, the first hole can largely enclose the first connection end, which helps improve connection stability. The configuration of the second enclosing portion as a second hole is similar to that of the first hole and will not be further described here.

[0024] In a second aspect, an embodiment of the present application further provides a circuit breaker comprising the electromagnetic assembly of the first aspect.

[0025] The electromagnetic assembly provided in the embodiments of the present application differs from conventional direct welding connections, enabling the terminal block and static contact to adapt to coils made of different materials, significantly expanding the electromagnetic assembly's applicability. Furthermore, the electromagnetic assembly effectively improves the connection stability between the coil and the terminal block, as well as between the coil and the static contact, thereby facilitating stable electrical connections between the coil and the terminal block, and between the coil and the static contact. This allows the electromagnetic assembly to respond promptly and accurately to current changes, providing reliable short-circuit protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic diagram of the structure of the electromagnetic component provided in an embodiment of the present application installed in a circuit breaker.

[0028] Figure 2 A schematic diagram of the structure of the electromagnetic component provided in an embodiment of the present application.

[0029] Figure 3 This is a schematic diagram of the structure of the coil, terminal block and static contact provided in an embodiment of the present application.

[0030] Figure 4 A schematic structural diagram of the terminal block and static contact provided in an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 100. Shell; 200. Electromagnetic assembly; 1. Terminal block; 11. First enclosing portion; 111. First bottom plate; 112. First side plate; 113. Second side plate; 2. Static contact; 21. Second enclosing portion; 211. Second bottom plate; 212. Third side plate; 213. Fourth side plate; 3. Coil; 31. First connecting end; 311. First avoidance surface; 32. Second connecting end; 321. Second avoidance surface; 4. Iron core. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, 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.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0036] In the description of this application, it should be noted that the terms "inner" and "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0037] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0038] The electromagnetic assembly in a circuit breaker provides short-circuit protection. Specifically, when a short-circuit current flows through the electromagnetic assembly, it generates a magnetic field in the electromagnetic coil, which activates the electromagnetic core. This core then triggers the circuit breaker's trip mechanism to trip, disconnecting the circuit.

[0039] In existing circuit breakers, the coil in the electromagnetic assembly is fixedly connected to both the terminal block and the static contact to achieve electrical connection. The terminal block and static contact are typically made of copper, making them easy to weld to the copper coil. However, when the coil is made of other conductive materials, such as aluminum or silver, welding the coil to the terminal block and static contact is complex and has low connection stability, making it difficult to achieve a stable electrical connection and affecting the normal operation of the electromagnetic assembly.

[0040] Based on this, an embodiment of the present application provides an electromagnetic assembly and a circuit breaker, which can improve the electrical connection stability of the electromagnetic assembly and reduce the risk of circuit breaker failure.

[0041] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0042] Figure 1This is a schematic diagram of the structure of the electromagnetic component provided in the embodiment of the present application installed in the circuit breaker. The present application provides a circuit breaker, which includes Figure 1 The housing 100 and the electromagnetic assembly 200 are shown, and the electromagnetic assembly 200 is fixedly connected to the housing 100 .

[0043] The electromagnetic assembly 200 provided in this embodiment of the present application differs from conventional direct welding connections by enabling the terminal block 1 and the static contact 2 to adapt to coils 3 made of various materials, significantly expanding the scope of application of the electromagnetic assembly 200. Furthermore, the electromagnetic assembly 200 effectively improves the connection stability between the coil 3 and the terminal block 1, and between the coil 3 and the static contact 2, thereby facilitating stable electrical connections between the coil 3 and the terminal block 1, and between the coil 3 and the static contact 2. This allows the electromagnetic assembly 200 to respond promptly and accurately to changes in current, thereby providing reliable short-circuit protection.

[0044] Figure 2 The schematic diagram of the structure of the electromagnetic assembly provided in the embodiment of the present application is shown in FIG. Figure 2 This embodiment provides an electromagnetic assembly 200, which includes a coil 3, an iron core 4, a terminal block 1, and a static contact 2. The coil 3 is wound around the iron core 4. The coil 3 includes a first connecting end 31 and a second connecting end 32. The terminal block 1 includes a first enclosing portion 11. The static contact 2 includes a second enclosing portion 21. The first connecting end 31 is at least partially enclosed by the first enclosing portion 11 and is riveted to the first enclosing portion 11. The second connecting end 32 is at least partially enclosed by the second enclosing portion 21 and is riveted to the second enclosing portion 21.

[0045] Based on the above-described embodiment of the present application, by providing a first enclosing portion 11 on the terminal block 1 for enclosing the first connection end 31 of the coil 3, and providing a second enclosing portion 21 on the static contact 2 for enclosing the second connection end 32 of the coil 3, it is possible to achieve that coils 3 made of different materials can be connected to the terminal block 1 and the static contact 2. Furthermore, by enhancing the connection stability between the first connection end 31 and the first enclosing portion 11, and between the second connection end 32 and the second enclosing portion 21 through riveting, the coil 3 and the terminal block 1, and the coil 3 and the static contact 2, can be maintained relatively fixed and tightly connected, thereby facilitating improved electrical connection stability between the coil 3 and the terminal block 1, and between the coil 3 and the static contact 2, and ensuring that the electromagnetic assembly 200 can reduce heat generation while providing stable electromagnetic tripping capability.

[0046] Enclosure refers to a connection form that can form a clamping, semi-enclosure, or full enclosure. Compared with the welding connection form, the enclosure connection form provided in the embodiment of the present application has the characteristics of simple structure, easy operation, and low production cost.

[0047] The first and second enclosing portions 11, 21 can be adapted to connect coils 3 of different materials and shapes. For example, the coil 3 in this embodiment is made of aluminum enameled wire. Using this connection method avoids the complex welding process between the aluminum enameled wire and the copper terminal block 1. The same applies to the aluminum enameled wire and the copper static contact 2, effectively simplifying the connection operation.

[0048] For another example, the cross-sectional shape of the first connection end 31 of the coil 3 can be circular, square, or other shapes, and can be within the enclosure range of the first enclosure portion 11, and can be fastened by riveting. The same applies to the second connection end 32 and the second enclosure portion 21. This effectively expands the scope of application of the electromagnetic assembly 200.

[0049] Specifically, refer to Figure 2 The coil 3 is wound on the iron core 4. When a short circuit occurs in the circuit, the short-circuit current flowing through the coil 3 will generate a strong magnetic field at the coil 3. The iron core 4 in the coil 3 will be affected by the magnetic field force and move to drive the circuit breaker to disconnect the circuit.

[0050] Both the first connection end 31 and the second connection end 32 extend along the axis of the coil 3, away from the coil 3, and face opposite directions. The first connection end 31 is used to connect to the terminal block 1, and the second connection end 32 is used to connect to the static contact 2, thereby electrically connecting the coil 3 between the terminal block 1 and the static contact 2.

[0051] Terminal block 1 is typically located at the circuit breaker's wiring location, connecting the input circuit. Stationary contact 2 is typically located within the circuit breaker, cooperating with the circuit breaker's movable contact to open and close the circuit breaker. Coil 3 and core 4 are positioned between terminal block 1 and stationary contact 2 to ensure a timely response to short-circuit currents flowing from terminal block 1.

[0052] Furthermore, the first enclosing portion 11 is provided on a side of the terminal block 1 close to the coil 3, corresponding to the first connection end 31 of the coil 3. The first enclosing portion 11 can be configured to fully or partially enclose the first connection end 31. For example, the first enclosing portion 11 can be configured as a through hole, a blind hole, or a through slot. These structures can provide a stable connection and simplify the connection operation.

[0053] The first enclosing portion 11 encloses the first connecting end 31 and is fastened by riveting, which can further enhance the tightness of the connection between the first enclosing portion 11 and the first connecting end 31, reduce the possibility of the first connecting end 31 detaching from the first enclosing portion 11, or a gap appearing between the first enclosing portion 11, effectively improve the connection stability between the first connecting end 31 and the first enclosing portion 11, avoid the situation where the electromagnetic assembly 200 fails due to loose structural connection affecting the electrical connection, and help the circuit breaker have reliable short-circuit protection capabilities.

[0054] The second enclosing portion 21 is provided on a side of the stationary contact 2 close to the coil 3 to correspond to the second connection end 32 of the coil 3. Similar to the first enclosing portion 11, the second enclosing portion 21 can also be provided in a structure capable of fully or partially enclosing the second connection end 32.

[0055] The connection between the second enclosing portion 21 and the second connecting end 32 can also be fastened by riveting, which can further enhance the tightness of the connection between the second enclosing portion 21 and the second connecting end 32, reduce the possibility of the second connecting end 32 detaching from the second enclosing portion 21, or a gap appearing between the second enclosing portion 21, and effectively improve the stability of the connection between the second connecting end 32 and the second enclosing portion 21, thereby achieving the same technical effect as the connection between the first connecting end 31 and the first enclosing portion 11, which will not be repeated here.

[0056] In some examples, reference Figure 3 and Figure 4 The first enclosing portion 11 is configured as a first groove, and the first groove corresponds to enclosing at least a portion of the first connecting end 31.

[0057] Based on the above-mentioned embodiments of the present application, the first enclosing portion 11 is set in the form of a first groove, which can enclose at least a portion of the first connecting end 31. The structure is simple, which not only facilitates the connection operation but also provides a more stable connection.

[0058] There are many ways to set the first groove. For example, the first groove can be a sunken groove opened on the terminal block 1, or it can be a groove set on the surface of the terminal block 1 and protruding from the terminal block 1. The structural form of the first groove usually has an opening, and the first connection end 31 can enter the first groove from the opening to achieve partial encapsulation of the first groove on the first connection end 31. This setting has the advantages of simple structure and easy connection operation. In addition, compared with the welding connection form, this embodiment is conducive to the rapid and stable connection of coils 3 made of other materials and the terminal block 1, effectively expanding the scope of application of the electromagnetic assembly 200.

[0059] In some examples, reference Figure 3 and Figure 4The first enclosing portion 11 includes a first bottom plate 111, a first side plate 112 and a second side plate 113. The first side plate 112 and the second side plate 113 are relatively arranged on both sides of the first bottom plate 111. The first side plate 112, the second side plate 113 and the first bottom plate 111 enclose each other to form a first groove.

[0060] Based on the above-mentioned embodiments of the present application, by setting a first bottom plate 111, and setting a first side plate 112 and a second side plate 113 on both sides of the first bottom plate 111, a first groove can be formed at the first bottom plate 111 through the first side plate 112 and the second side plate 113, so as to realize an enclosing connection of the first connection end 31 through the first groove. The structure is simple, easy to assemble, and the connection stability can be improved with the cooperation of the first side plate 112 and the second side plate 113.

[0061] Specifically, refer to Figure 4 The first bottom plate 111, the first side plate 112 and the second side plate 113 are arranged on the side of the terminal block 1 close to the coil 3. The first bottom plate 111 is an extension of the terminal block 1. The first side plate 112 and the second side plate 113 are opposite to and spaced apart on both sides of the first bottom plate 111. The first side plate 112 and the second side plate 113 both maintain a preset angle with the first bottom plate 111 to form a first slot with a stable structure.

[0062] Among them, the preset angle can be an acute angle or an obtuse angle. For example, the first side panel 112 can be at a 60° angle with the first bottom panel 111, and the second side panel 113 can be at a 60° angle with the first bottom panel 111. In this way, the first bottom panel 111, the first side panel 112 and the second side panel 113 can form a stable enclosing space. The connection of the first connecting end 31 to such a first groove can effectively reduce the possibility of detachment from the first groove.

[0063] In addition, the first side panel 112 and the second side panel 113 can also be bent relative to the first bottom panel 111, so that after the first connecting end 31 is connected to the first groove, the first side panel 112 and the second side panel 113 can be fully fitted with the first connecting end 31 through a riveting process, thereby achieving a riveted and fastened connection of the first connecting end 31.

[0064] In some examples, reference Figure 3 and Figure 4 The second enclosing portion 21 is configured as a second groove, and the second groove corresponds to enclosing at least a portion of the second connecting end 32.

[0065] Based on the above-mentioned embodiments of the present application, the second enclosing portion 21 is set in the form of a second groove, which is used to enclose at least a portion of the second connection end 32. Like the first enclosing portion 11, it has the advantages of simple structure, easy connection operation and the ability to provide stable connection.

[0066] Specifically, the second groove can be configured in the same or different structural form as the first groove. Like the first groove, the second groove has an opening, and the second connecting end 32 can enter the second groove through the opening, thereby partially enclosing the second connecting end 32. The configuration of the second groove has the same technical effect as the first groove and will not be further described here.

[0067] Reference Figure 3 and Figure 4 In some examples, the second enclosing portion 21 includes a second bottom plate 211, a third side plate 212 and a fourth side plate 213. The third side plate 212 and the fourth side plate 213 are relatively arranged on both sides of the second bottom plate 211. The third side plate 212, the fourth side plate 213 and the second bottom plate 211 enclose each other to form a second groove.

[0068] Based on the above-mentioned embodiments of the present application, by setting a second bottom plate 211, and setting a third side plate 212 and a fourth side plate 213 on both sides of the second bottom plate 211, a second groove can be formed at the second bottom plate 211 through the third side plate 212 and the fourth side plate 213, so as to realize the enclosing connection of the second connection end 32 through the second groove. The structure is simple, easy to assemble, and the connection stability can be improved with the cooperation of the third side plate 212 and the fourth side plate 213.

[0069] Specifically, the second bottom plate 211, the third side plate 212, and the fourth side plate 213 are disposed on the side of the static contact 2 closest to the coil 3. The second bottom plate 211 supports the second connecting end 32, and also supports the third side plate 212 and the fourth side plate 213. The third side plate 212 and the fourth side plate 213 are disposed opposite and spaced apart on either side of the second bottom plate 211, thereby forming a second slot with the second bottom plate 211. The third side plate 212 and the fourth side plate 213 maintain a predetermined angle with the second bottom plate 211 to form a second slot with a relatively stable structure.

[0070] Similarly, refer to Figure 4 The preset angles between the third side panel 212 and the second bottom panel 211 and between the fourth side panel 213 and the second bottom panel 211 can be acute or obtuse. For example, the third side panel 212 and the second bottom panel 211 can have a 60° angle, and the fourth side panel 213 and the second bottom panel 211 can also have a 60° angle. In this way, the second bottom panel 211, the third side panel 212 and the fourth side panel 213 can form a stable enclosing space. The second connecting end 32 connected to such a second groove can effectively reduce the possibility of detachment from the second groove.

[0071] In addition, the third side panel 212 and the fourth side panel 213 can also be bent relative to the second bottom panel 211, so that after the second connection end 32 is connected to the second groove, the third side panel 212 and the fourth side panel 213 can fully fit the second connection end 32 through the riveting process, thereby realizing the riveting and fastening connection of the second connection end 32.

[0072] In some examples, reference Figure 3 and Figure 4 The first side plate 112 and the second side plate 113 are both configured to be arc-shaped and bend toward each other.

[0073] Based on the above-mentioned embodiments of the present application, by setting the first side panel 112 and the second side panel 113 to an arc shape, the first side panel 112 and the second side panel 113 can be more closely fitted to the first connection end 31 when enclosing the first connection end 31, thereby improving the connection tightness between the first connection end 31 and the first enclosing portion 11.

[0074] Specifically, the arc-shaped first side plate 112 and the second side plate 113 are both bent in a direction toward each other, which means that the first side plate 112 and the second side plate 113 are both bent toward the center direction of the first slot so as to adapt to the shape of the first connection end 31 inserted into the first slot. In this way, the first side plate 112 and the second side plate 113 can fit more closely to the surface of the first connection end 31 to increase the contact area. The riveting process can further enhance the enclosing effect of the first side plate 112 and the second side plate 113 on the first connection end 31, thereby further improving the connection stability between the coil 3 and the terminal block 1.

[0075] In some examples, reference Figure 3 and Figure 4 The third side plate 212 and the fourth side plate 213 are both configured to be arc-shaped and bent in a direction toward each other.

[0076] Based on the above-mentioned embodiments of the present application, by setting the third side panel 212 and the fourth side panel 213 to be arc-shaped, the third side panel 212 and the fourth side panel 213 can be more closely fitted to the second connection end 32 when enclosing the second connection end 32, thereby improving the connection tightness between the second connection end 32 and the second enclosing portion 21.

[0077] Specifically, the arc-shaped third side plate 212 and the fourth side plate 213 are both bent toward each other, meaning that the third side plate 212 and the fourth side plate 213 are both bent toward the center of the second slot to conform to the shape of the first connection end 31 inserted into the second slot. This allows the third side plate 212 and the fourth side plate 213 to more closely fit the surface of the second connection end 32, thereby increasing the contact area. The riveting process further enhances the engagement of the third side plate 212 and the fourth side plate 213 with the second connection end 32, thereby further improving the connection stability between the coil 3 and the static contact 2.

[0078] Reference Figure 3 and Figure 4 In some examples, the first connection end 31 includes a first avoidance surface 311, the first enclosing portion 11 includes a first opening, and the first avoidance surface 311 is adapted to the first opening; the second connection end 32 includes a second avoidance surface 321, the second enclosing portion 21 includes a second opening, and the second avoidance surface 321 is adapted to the second opening.

[0079] Based on the aforementioned embodiments of the present application, the provision of the first relief surface 311 can be used to avoid interference with other components, such as the iron core 4, during assembly. Furthermore, the first relief surface 311 can reduce the volume of the first connection end 31, facilitating the first side plate 112 and the second side plate 113 to enclose the first connection end 31, thereby avoiding the problem of the first slot being unable to effectively enclose the first connection end 31 due to its excessive size. The second relief surface 321 has the same configuration as the first relief surface 311 and has the same technical effect.

[0080] The first relief surface 311 can be provided directly on the first connection end 31 or can be formed when the first connection end 31 and the first enclosing portion 11 are riveted. Providing the first relief surface 311 directly on the first connection end 31 allows for clearance of other components, such as the portion of the core 4 extending beyond the coil 3. This prevents interference during assembly.

[0081] Specifically, refer to Figure 3 and Figure 4 The first avoidance surface 311 is arranged on the side of the first connection end 31 away from the first bottom plate 111, and the direction of the first avoidance surface 311 is the same as the opening direction of the first groove. This arrangement can make the first connection end 31 completely in the first groove, avoiding the part of the first connection end 31 protruding from the first groove affecting the enclosing effect of the first groove on the first connection end 31.

[0082] Furthermore, the provision of the first avoidance surface 311 facilitates applying force to the first connecting end 31 during the riveting process, so that the first connecting end 31 and the first enclosing portion 11 maintain a tight connection.

[0083] The second avoidance surface 321 has the same technical effect as the first avoidance surface 311 , and will not be described in detail here.

[0084] In some examples, the first enclosing portion 11 includes a first hole (not shown in the figure), and the first connecting end 31 is correspondingly connected to the first hole; the second enclosing portion 21 includes a second hole, and the second connecting end 32 is correspondingly connected to the second hole (not shown in the figure).

[0085] Based on the above-described embodiments of the present application, configuring the first enclosing portion 11 as a first hole allows the first connection end 31 of the coil 3 to be directly inserted into the first hole, effectively simplifying the connection between the terminal block 1 and the coil 3. Furthermore, the first hole can largely enclose the first connection end 31, which helps improve connection stability. Configuring the second enclosing portion 21 as a second hole is similar to configuring the first hole and will not be further described here.

[0086] Specifically, the first hole can be set on the side of the terminal block 1 close to the coil 3, and the shape and size of the first hole can be the same as the shape and size of the first connection end 31, so that the first connection end 31 can be inserted into the first hole easily, and then the first hole and the first connection end 31 can be riveted together in a riveting process. Alternatively, the size of the first hole can be slightly smaller than the size of the first connection end 31, and the shape of the first hole can be the same as the shape of the first connection end 31, so that the first connection end 31 and the first hole can achieve an interference fit, which can not only achieve a stable connection, but also further simplify the connection operation. Similarly, the connection form of the second hole and the second connection end 32 can be set to the same form as the first hole and the first connection end 31, which can achieve the same technical effect. The first hole and the second hole cooperate to achieve a stable electrical connection of the electromagnetic component 200.

[0087] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An electromagnetic component, characterized in that Applied to a circuit breaker, the electromagnetic assembly comprises a coil, an iron core, a terminal block and a static contact, wherein the coil is wound around the iron core; The coil includes a first connecting end and a second connecting end, the terminal block includes a first enclosing portion, and the static contact includes a second enclosing portion; The first connection end is at least partially enclosed by the first enclosing portion, and the first connection end is riveted to the first enclosing portion. The second connection end is at least partially enclosed by the second enclosing portion, and the second connection end is riveted to the second enclosing portion.

2. The electromagnetic assembly according to claim 1, wherein: The first enclosing portion is configured as a first groove, and the first groove correspondingly encloses at least a portion of the first connecting end.

3. The electromagnetic assembly according to claim 2, characterized in that The first enclosing portion includes a first bottom plate, a first side plate and a second side plate. The first side plate and the second side plate are relatively arranged on both sides of the first bottom plate. The first side plate, the second side plate and the first bottom plate enclose each other to form the first groove.

4. The electromagnetic assembly according to claim 1, wherein: The second enclosing portion is configured as a second groove, and the second groove correspondingly encloses at least a portion of the second connecting end.

5. The electromagnetic assembly according to claim 4, characterized in that The second enclosing portion includes a second bottom plate, a third side plate and a fourth side plate. The third side plate and the fourth side plate are relatively arranged on both sides of the second bottom plate. The third side plate, the fourth side plate and the second bottom plate enclose each other to form the second groove.

6. The electromagnetic assembly according to claim 3, characterized in that The first side plate and the second side plate are both configured to be arc-shaped and are bent in a direction of approaching each other.

7. The electromagnetic assembly according to claim 5, characterized in that The third side plate and the fourth side plate are both configured to be arc-shaped and bent in a direction of approaching each other.

8. The electromagnetic assembly according to claim 1, wherein: The first connecting end includes a first avoidance surface, the first enclosing portion includes a first opening, and the first avoidance surface is adapted to the first opening; the second connecting end includes a second avoidance surface, the second enclosing portion includes a second opening, and the second avoidance surface is adapted to the second opening.

9. The electromagnetic assembly according to claim 1, wherein: The first enclosing portion includes a first hole, and the first connecting end is correspondingly connected to the first hole. The second enclosing portion includes a second hole, and the second connecting end is correspondingly connected to the second hole.

10. A circuit breaker, characterized in that: The electromagnetic assembly comprises the electromagnetic assembly according to any one of claims 1 to 9.

Images