Closing assembly and circuit breaker

Abstract

The utility model provides a closing assembly and a circuit breaker, and relates to the technical field of circuit breakers. The closing assembly comprises a base provided with a placing part, a first hooking part and a first jack, a cover plate provided with a plate body part, a second hooking part and a second jack, a limiting piece inserted into the second jack and the first jack, and an elastic piece connected to one side, facing the placing part, of the plate body part, and the closing coil is placed on the placing part; the elastic member is supported on one side of the closing coil away from the placing portion. According to the closing assembly and the circuit breaker provided by the invention, a dismounting tool is not needed in the dismounting process and the mounting process of the closing coil, so that the replacement of the closing coil is more convenient and faster, and the replacement efficiency of the closing coil is improved. And meanwhile, when a part of closing coils break down, the circuit breaker can be switched to perform closing action through the other closing coils, so that the risk of power failure accidents is reduced.

Description

Technical Field

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

[0002] The information disclosed in this Background section is only intended to enhance understanding of the general background of the present disclosure.

[0003] A circuit breaker is a switching device that can close, carry and interrupt current under normal circuit conditions and can close, carry and interrupt current under abnormal circuit conditions within a specified time.

[0004] The closing coil is a vulnerable part in the circuit breaker. When a fault occurs, the circuit breaker cannot be closed normally, resulting in a serious power outage. Therefore, it needs to be replaced in time. In the related art, the closing coil is installed on the mounting part of the circuit breaker by multiple screws, so that the closing coil is detachable.

[0005] However, when a closing coil fails, it is necessary to use a disassembly tool such as a screwdriver to replace the closing coil, which makes the disassembly and installation process of the closing coil time-consuming and labor-intensive, thereby affecting the replacement efficiency of the closing coil. Utility Model Content

[0006] In view of this, the purpose of the present application is to provide a closing assembly and a circuit breaker, aiming to solve the technical problem in the related art that the closing coil needs to be replaced with the help of disassembly tools, which affects the replacement efficiency.

[0007] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0008] In a first aspect, an embodiment of the present application provides a closing assembly, comprising:

[0009] Closing coil;

[0010] The base comprises a placement portion and a first hooking portion connected to each other, the placement portion is provided with a first insertion hole penetrating therethrough, and the closing coil is placed on the placement portion;

[0011] The cover plate comprises a plate body and a second hooking portion connected to each other, wherein the plate body is provided with a second insertion hole penetrating therethrough, and the second hooking portion is hooked with the first hooking portion;

[0012] Limiting members, respectively inserted into the second plug hole and the first plug hole;

[0013] The elastic member is connected to a side of the plate body facing the placement portion, and is supported on a side of the closing coil away from the placement portion.

[0014] In one embodiment of the first aspect, a plurality of closing coils are provided, and two adjacent closing coils are spaced apart from each other. At least one of the limiting member, the first socket and the second socket is provided respectively, and each limiting member is respectively plugged into one of the second sockets and one of the first sockets to separate two adjacent closing coils.

[0015] In one embodiment of the first aspect, the limiting member includes a first limiting portion and a second limiting portion connected to each other, the first limiting portion is respectively inserted into the second insertion hole and the first insertion hole, and the second limiting portion abuts against an edge of the second insertion hole.

[0016] In one embodiment of the first aspect, the placement portion is provided with a plurality of first heat dissipation holes penetrating therethrough; and / or

[0017] The plate body is provided with a plurality of second heat dissipation holes penetrating therethrough.

[0018] In one embodiment of the first aspect, the plate body portion includes a first plate body, a second plate body and a third plate body connected between the first plate body and the second plate body, the third plate body is provided with the second insertion hole, the elastic member is connected to a side of the third plate body facing the placement portion, and the first plate body and the second plate body are respectively provided with the second hook portion.

[0019] In one of the embodiments of the first aspect, the placement portion includes a base plate and a first connecting plate, a second connecting plate, a first side plate and a second side plate respectively connected to the base plate, the first connecting plate and the second connecting plate are arranged opposite to each other and are respectively provided with the first hooking portion, and the first side plate and the second side plate are arranged opposite to each other.

[0020] In one embodiment of the first aspect, the elastic member is a cylindrical spring, a hole seat is provided on the side of the plate body facing the placement portion, the hole seat has a connecting hole, and one end of the cylindrical spring is inserted into the connecting hole.

[0021] In one of the embodiments of the first aspect, the placement portion and the plate body portion jointly define a receiving space, and the receiving space is used to accommodate at least a portion of the closing coil.

[0022] In one embodiment of the first aspect, the first hooking portion includes a first section, a second section and a third section, the first section is connected to the placement portion, the second section is vertically connected to an end of the first section away from the placement portion, the third section is vertically connected to an end of the second section away from the first section, the second hooking portion includes a fourth section, a fifth section and a sixth section, the fourth section is connected to the plate body, the fifth section is vertically connected to an end of the fourth section away from the plate body, the sixth section is vertically connected to an end of the fifth section away from the fourth section, the third section is located between the fourth section and the sixth section and abuts against the fifth section, and the sixth section is located between the first section and the third section and abuts against the second section.

[0023] In a second aspect, an embodiment of the present application further provides a circuit breaker, comprising the closing assembly described in any of the above embodiments.

[0024] The beneficial effects of this application are:

[0025] The present application provides a closing assembly. When disassembling the closing coil, first pull out the limiter, then press the cover plate to overcome the elastic force of the elastic member, then make the second hooking part disengage from the limit of the first hooking part, thereby removing the cover plate, and finally taking out the closing coil. When installing the closing coil, first place the closing coil on the placement part, then place the cover plate on the side of the closing coil away from the placement part, so that the elastic member is supported on the closing coil, then press the cover plate to overcome the elastic force of the elastic member, and hook the second hooking part on the first hooking part, then loosen the cover plate to rely on the elastic force of the elastic member to make the first hooking part and the second hooking part hook each other, and finally insert the limiter into the second jack and the first jack. The closing assembly provided by the present application does not require the aid of disassembly tools during the above-mentioned disassembly and installation processes, making the replacement of the closing coil more convenient and quick, thereby improving the replacement efficiency of the closing coil.

[0026] In order to make the above-mentioned objects, features and advantages of the present application more obvious and understandable, preferred embodiments are given below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the structure of a closing assembly from one perspective in some embodiments of the present application is shown;

[0029] Figure 2 Another perspective structural schematic diagram of the closing assembly in some embodiments of the present application is shown;

[0030] Figure 3 Another perspective structural schematic diagram of the closing assembly in some embodiments of the present application is shown;

[0031] Figure 4 Shows Figure 3 Schematic diagram of the enlarged structure of the A area in the middle;

[0032] Figure 5 A schematic diagram of the exploded structure of a closing assembly in some embodiments of the present application is shown;

[0033] Figure 6 A schematic diagram of the assembly structure of the cover plate and the elastic member in some embodiments of the present application is shown;

[0034] Figure 7 A schematic diagram of the three-dimensional structure of a base in some embodiments of the present application is shown;

[0035] Figure 8 A schematic diagram of the three-dimensional structure of a circuit breaker in some embodiments of the present application is shown.

[0036] Description of main component symbols:

[0037] 1000-circuit breaker; 100-closing assembly; 110-closing coil; 120-base; 121-placement portion; 1211-bottom plate; 12111-first plug hole; 12112-first heat dissipation hole; 1212-first connecting plate; 1213-second connecting plate; 1214-first side plate; 1215-second side plate; 122-first hooking portion; 1221-first section; 1222-second section; 1223-third section; 123-accommodation space; 130-cover plate; 13 1-plate body; 1311-first plate body; 1312-second plate body; 1313-third plate body; 13131-second plug hole; 13132-hole seat; 13133-connecting hole; 13134-second heat dissipation hole; 132-second hooking part; 1321-fourth section; 1322-fifth section; 1323-sixth section; 140-limiting member; 141-first limiting part; 142-second limiting part; 150-elastic member; 151-column spring; 200-circuit breaker body. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] In the related art, the closing coil is installed on the mounting part of the circuit breaker by multiple screws, so that the closing coil is detachable. However, when the closing coil fails, it is necessary to use disassembly tools such as screwdrivers to replace the closing coil, which makes the disassembly and installation process of the closing coil time-consuming and labor-intensive, thereby affecting the replacement efficiency of the closing coil. In addition, the circuit breaker is usually only provided with a single closing coil. When the closing coil fails, the circuit breaker cannot be closed normally, and power outages are likely to occur, affecting the daily life of users.

[0044] In order to solve the above technical problems, Figure 1 As shown, in the first aspect, an embodiment of the present application provides a closing assembly, which relates to the technical field of circuit breakers and is mainly used in circuit breakers.

[0045] Combination Figure 2 , Figure 3 and Figure 5 As shown, the closing assembly 100 provided in this embodiment includes: a closing coil 110 , a base 120 , a cover plate 130 , a limiter 140 and an elastic member 150 .

[0046] The base 120 includes a placement portion 121 and a first hooking portion 122 connected to each other. The placement portion 121 is provided with a first insertion hole 12111 penetrating therethrough, and the closing coil 110 is placed on the placement portion 121. The cover plate 130 includes a plate body portion 131 and a second hooking portion 132 connected to each other. The plate body portion 131 is provided with a second insertion hole 13131 penetrating therethrough, and the second hooking portion 132 is hooked with the first hooking portion 122. The stopper 140 is respectively inserted into the second insertion hole 13131 and the first insertion hole 12111. The elastic member 150 is connected to a side of the plate body portion 131 facing the placement portion 121, and is supported on a side of the closing coil 110 away from the placement portion 121.

[0047] It is understandable that when disassembling the closing coil 110, first pull out the limiting member 140, then press the cover plate 130 to overcome the elastic force of the elastic member 150, then make the second hook portion 132 disengage from the limiting position of the first hook portion 122, thereby removing the cover plate 130, and finally taking out the closing coil 110. When installing the closing coil 110, first place the closing coil 110 on the placement portion 121, and then place the cover 130 on the side of the closing coil 110 away from the placement portion 121, so that the elastic member 150 is supported on the closing coil 110, and then press the cover 130 to overcome the elastic force of the elastic member 150, and hook the second hooking portion 132 on the first hooking portion 122, and then loosen the cover 130 to rely on the elastic force of the elastic member 150 to make the first hooking portion 122 and the second hooking portion 132 hooked with each other, and finally insert the limit member 140 into the second socket 13131 and the first socket 12111.

[0048] The closing assembly 100 provided in this embodiment does not require any disassembly tools during the above-mentioned disassembly and installation processes, making the replacement of the closing coil 110 more convenient and quick, thereby improving the replacement efficiency of the closing coil 110.

[0049] like Figure 1 and Figure 5 As shown, in one embodiment, a plurality of closing coils 110 are provided, and two adjacent closing coils 110 are arranged at intervals, and at least one limiting member 140, a first plug hole 12111 and a second plug hole 13131 are respectively provided, and each limiting member 140 is respectively plugged into a second plug hole 13131 and a first plug hole 12111, so as to separate two adjacent closing coils 110.

[0050] Exemplarily, the number of the stopper 140, the first plug hole 12111, and the second plug hole 13131 are all two, and the number of the closing coil 110 is three. Of course, the number of the stopper 140, the first plug hole 12111, and the second plug hole 13131 can also be one, three, four, five, etc., and the number of the closing coil 110 can be two, three, four, five, etc. No specific limitation is made here.

[0051] In this embodiment, two adjacent closing coils 110 are separated by the limiting member 140 , so that when the closing coil 110 is overheated, the heat will not spread to the adjacent closing coil 110 , thereby improving the safety of the closing coil 110 .

[0052] like Figure 5 As shown, in one embodiment, the limiting member 140 includes a first limiting portion 141 and a second limiting portion 142 connected to each other, the first limiting portion 141 is respectively inserted into the second plug hole 13131 and the first plug hole 12111, and the second limiting portion 142 abuts against the edge of the second plug hole 13131.

[0053] In this embodiment, the first limiting portion 141 can limit the relative movement of the cover plate 130 and the base 120, so that the first hooking portion 122 and the second hooking portion 132 can be stably hooked. The second limiting portion 142 can limit the insertion stroke of the limiting member 140 to limit the relative position of the limiting member 140 and the cover plate 130.

[0054] like Figure 5 As shown, in one embodiment, the placement portion 121 is provided with a plurality of first heat dissipation holes 12112 extending therethrough, or the plate body 131 is provided with a plurality of second heat dissipation holes 13134 extending therethrough, or the placement portion 121 is provided with a plurality of first heat dissipation holes 12112 extending therethrough and the plate body 131 is provided with a plurality of second heat dissipation holes 13134 extending therethrough.

[0055] In this embodiment, since a first heat dissipation hole 12112 is opened on the placement portion 121 and a second heat dissipation hole 13134 is opened on the plate body portion 131, the first heat dissipation hole 12112 and the second heat dissipation hole 13134 facilitate the circulation of airflow, thereby effectively helping the closing coil 110 to dissipate heat, thereby reducing the risk of overheating of the closing coil 110.

[0056] like Figure 5 As shown, further, a plurality of first heat dissipation holes 12112 and a plurality of second heat dissipation holes 13134 are respectively provided, and adjacent first heat dissipation holes 12112 are arranged at intervals, and adjacent second heat dissipation holes 13134 are arranged at intervals.

[0057] Exemplarily, the number of the first heat dissipation holes 12112 and the second heat dissipation holes 13134 is two, three, four, five, etc., and can be specifically set according to design requirements.

[0058] In this embodiment, by setting the number of the first heat dissipation holes 12112 and the number of the second heat dissipation holes 13134 to be plural respectively, the heat dissipation range and the heat dissipation area can be increased, thereby more effectively helping the closing coil 110 to dissipate heat.

[0059] like Figure 6 and Figure 7 As shown, in one embodiment, the plate body portion 131 includes a first plate body 1311, a second plate body 1312 and a third plate body 1313, the third plate body 1313 is connected between the first plate body 1311 and the second plate body 1312, a second plug hole 13131 is provided on the third plate body 1313, the elastic member 150 is connected to a side of the third plate body 1313 facing the placement portion 121, and a second hook portion 132 is respectively provided on the first plate body 1311 and the second plate body 1312. The placement portion 121 includes a bottom plate 1211 and a first connecting plate 1212, a second connecting plate 1213, a first side plate 1214 and a second side plate 1215. The first connecting plate 1212, the second connecting plate 1213, the first side plate 1214 and the second side plate 1215 are respectively connected to the bottom plate 1211. The first connecting plate 1212 and the second connecting plate 1213 are arranged opposite to each other and are respectively provided with a first hooking portion 122. The first side plate 1214 and the second side plate 1215 are arranged opposite to each other.

[0060] In this embodiment, since the first plate body 1311 and the second plate body 1312 of the plate body 131 are respectively provided with the second hooking portion 132, and the first connecting plate 1212 and the second connecting plate 1213 of the placement portion 121 are respectively provided with the first hooking portion 122, each second hooking portion 132 is used to hook on a first hooking portion 122, so that the stability of the mutual hooking of the cover plate 130 and the base 120 can be increased. At the same time, the first plate body 1311, the second plate body 1312, the first connecting plate 1212, the second connecting plate 1213, the first side plate 1214 and the second side plate 1215 are jointly covered around the closing coil 110, which plays a role in protecting the closing coil 110 and prolonging the service life of the closing coil 110.

[0061] like Figure 6 As shown, in one embodiment, the elastic member 150 is a cylindrical spring 151, and a hole seat 13132 is provided on the side of the plate body 131 facing the placement portion 121. The hole seat 13132 has a connecting hole 13133, and one end of the cylindrical spring 151 is inserted into the connecting hole 13133.

[0062] In this embodiment, a hole seat 13132 is provided on the side of the plate body 131 facing the placement portion 121, and the hole seat 13132 has a connecting hole 13133. One end of the columnar spring 151 is inserted into the connecting hole 13133, thereby realizing a detachable connection between the columnar spring 151 and the plate body 131, and facilitating the installation and disassembly of the columnar spring 151.

[0063] Of course, for the above embodiment, the elastic member 150 may also be a spring sheet, an elastic arm or other element that can also provide elastic force, and no specific limitation is imposed on the type of use of the elastic member 150.

[0064] like Figure 1 As shown, in one embodiment, the placement portion 121 and the plate portion 131 together define a receiving space 123 , and the receiving space 123 is used to accommodate at least a portion of the closing coil 110 .

[0065] Exemplarily, the plate body 131 includes a first plate body 1311, a second plate body 1312, and a third plate body 1313 connected between the first plate body 1311 and the second plate body 1312, and the placement portion 121 includes a bottom plate 1211 and a first connecting plate 1212, a second connecting plate 1213, a first side plate 1214, and a second side plate 1215 respectively connected to the bottom plate 1211. The first plate body 1311, the second plate body 1312, the third plate body 1313, the bottom plate 1211, the first connecting plate 1212, the second connecting plate 1213, the first side plate 1214, and the second side plate 1215 together define the above-mentioned accommodation space 123.

[0066] In this embodiment, the placement portion 121 and the plate portion 131 together define an accommodation space 123 , and the accommodation space 123 can accommodate at least a portion of the closing coil 110 , thereby protecting the closing coil 110 and extending the service life of the closing coil 110 .

[0067] like Figure 3 and Figure 4 As shown, in one embodiment, the first hooking portion 122 includes a first section 1221, a second section 1222 and a third section 1223, the first section 1221 is connected to the placement portion 121, the second section 1222 is vertically connected to an end of the first section 1221 away from the placement portion 121, the third section 1223 is vertically connected to an end of the second section 1222 away from the first section 1221, and the second hooking portion 132 includes a fourth section 1321, a fifth section 1322 and a sixth section 1323 The fourth section 1321 is connected to the plate body 131, the fifth section 1322 is vertically connected to the end of the fourth section 1321 away from the plate body 131, the sixth section 1323 is vertically connected to the end of the fifth section 1322 away from the fourth section 1321, the third section 1323 is located between the fourth section 1321 and the sixth section 1323, and abuts against the fifth section 1322, and the sixth section 1323 is located between the first section 1221 and the third section 1223, and abuts against the second section 1222.

[0068] In this embodiment, the first section 1221, the second section 1222 and the third section 1223 together form a first hook, and the fourth section 1321, the fifth section 1322 and the sixth section 1323 together form a second hook. In this way, by using the mutual hooking of the first hook and the second hook, and the elastic force applied to the plate body 131 by the limiting member 140 and the elastic member 150, the cover plate 130 and the base 120 can be mutually limited.

[0069] In another embodiment, the first hooking portion 122 may be a hook and the second hooking portion 132 may be a hanging hole, or the first hooking portion 122 may be a hanging hole and the second hooking portion 132 may be a hook, both of which can achieve the effect of mutual hooking and limiting. The structures of the first hooking portion 122 and the second hooking portion 132 are not specifically limited here.

[0070] like Figure 8 As shown, in the second aspect, an embodiment of the present application provides a circuit breaker 1000, comprising a circuit breaker body 200 and a closing assembly 100 mentioned in any embodiment of the first aspect, the closing assembly 100 is located inside the circuit breaker body 200 and connected to the circuit breaker body 200, and a plurality of closing coils 110 are provided.

[0071] In this embodiment, by providing a plurality of closing coils 110 , when a part of the closing coils 110 fails, the circuit breaker 1000 can switch to performing the closing action through the remaining closing coils 110 , thereby reducing the risk of power outage accidents.

[0072] It can be understood that since the closing assembly 100 provided in this embodiment has the closing assembly 100 in any embodiment of the first aspect mentioned above, it has all the beneficial effects of the closing assembly 100, which will not be listed one by one here.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0074] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A closing assembly, characterized in that: include: Closing coil; The base comprises a placement portion and a first hooking portion connected to each other, the placement portion is provided with a first insertion hole penetrating therethrough, and the closing coil is placed on the placement portion; The cover plate comprises a plate body and a second hooking portion connected to each other, wherein the plate body is provided with a second insertion hole penetrating therethrough, and the second hooking portion is hooked with the first hooking portion; Limiting members, respectively inserted into the second plug hole and the first plug hole; The elastic member is connected to a side of the plate body facing the placement portion, and is supported on a side of the closing coil away from the placement portion.

2. The closing assembly according to claim 1, characterized in that: There are multiple closing coils, and two adjacent closing coils are arranged at intervals. At least one of the limiter, the first socket and the second socket is respectively provided, and each of the limiters is respectively plugged into one of the second sockets and one of the first sockets to separate two adjacent closing coils.

3. The closing assembly according to claim 1, characterized in that: The limiting member includes a first limiting portion and a second limiting portion connected to each other, the first limiting portion is respectively inserted into the second insertion hole and the first insertion hole, and the second limiting portion abuts against an edge of the second insertion hole.

4. The closing assembly according to claim 1, characterized in that: The placement portion is provided with a plurality of first heat dissipation holes penetrating therethrough; and / or The plate body is provided with a plurality of second heat dissipation holes penetrating therethrough.

5. The closing assembly according to any one of claims 1 to 4, characterized in that: The plate body portion includes a first plate body, a second plate body and a third plate body connected between the first plate body and the second plate body, the third plate body is provided with the second insertion hole, the elastic member is connected to the side of the third plate body facing the placement portion, and the first plate body and the second plate body are respectively provided with the second hooking portion.

6. The closing assembly according to any one of claims 1 to 4, characterized in that: The placement portion includes a bottom plate and a first connecting plate, a second connecting plate, a first side plate and a second side plate respectively connected to the bottom plate. The first connecting plate and the second connecting plate are arranged opposite to each other and are respectively provided with the first hooking portion. The first side plate and the second side plate are arranged opposite to each other.

7. The closing assembly according to any one of claims 1 to 4, characterized in that: The elastic member is a columnar spring. A hole seat is provided on the side of the plate body facing the placement portion. The hole seat has a connecting hole. One end of the columnar spring is inserted into the connecting hole.

8. The closing assembly according to any one of claims 1 to 4, characterized in that: The placement portion and the plate body portion jointly define a receiving space, and the receiving space is used to accommodate at least a portion of the closing coil.

9. The closing assembly according to any one of claims 1 to 4, characterized in that: The first hooking portion includes a first section, a second section and a third section, the first section is connected to the placement portion, the second section is vertically connected to an end of the first section away from the placement portion, the third section is vertically connected to an end of the second section away from the first section, the second hooking portion includes a fourth section, a fifth section and a sixth section, the fourth section is connected to the plate body, the fifth section is vertically connected to an end of the fourth section away from the plate body, the sixth section is vertically connected to an end of the fifth section away from the fourth section, the third section is located between the fourth section and the sixth section and abuts against the fifth section, the sixth section is located between the first section and the third section and abuts against the second section.

10. A circuit breaker, characterized in that: The invention comprises a closing assembly as claimed in any one of claims 1 to 9.

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