Energy storage assembly and circuit breaker

Abstract

The utility model provides an energy storage assembly and a circuit breaker, and belongs to the technical field of electrical equipment. The energy storage assembly is applied to the circuit breaker, the circuit breaker comprises a side plate and a portal frame, the portal frame is movably connected with the side plate, and the energy storage assembly comprises a support, a connecting piece and an energy storage spring. The support is fixedly connected with the side plate and provided with a first limiting part. The connecting piece is supported on the support and is a plate-shaped stamping piece. The connecting piece comprises a matching part and a second limiting part, the matching part is matched with the first limiting part to limit the position of the connecting piece, and the second limiting part is bent towards the portal frame relative to the matching part. The energy storage spring is fixedly arranged between the connecting piece and the portal frame, the end, close to the connecting piece, of the energy storage spring is matched with the second limiting part, and the second limiting part is used for limiting the swing amplitude of the energy storage spring. The connecting piece is simple in structure, raw materials needed in the production process can be saved, the manufacturing cost of the energy storage assembly is reduced, and the use cost of the circuit breaker is saved.

Description

Technical Field

[0001] This application relates to the technical field of electrical equipment, and particularly to an energy storage component and a circuit breaker. Background Art

[0002] With the continuous development of the circuit breaker industry, circuit breakers are developing towards high efficiency and high reliability. As one of the important components of a circuit breaker, the energy storage component directly affects the efficiency and reliability of the circuit breaker.

[0003] In the prior art, due to the relatively complex structure of the energy storage component, the manufacturing cost of the energy storage component is relatively high, resulting in a relatively high use cost of the circuit breaker. Therefore, there is an urgent need for an energy storage component and a circuit breaker. Summary of the Utility Model

[0004] This application provides an energy storage component and a circuit breaker, which can reduce the manufacturing cost of the energy storage component, thereby reducing the use cost of the circuit breaker.

[0005] In a first aspect, this application provides an energy storage component, which is applied to a circuit breaker. The circuit breaker includes side plates and a gantry, and the gantry is movably connected to the side plates. The energy storage component includes: a bracket, a connecting piece, and an energy storage spring. The bracket is fixedly connected to the side plates, and the bracket is provided with a first limiting portion. The connecting piece is supported on the bracket, and the connecting piece is a plate-shaped stamping part. The connecting piece includes a matching portion and a second limiting portion. The matching portion cooperates with the first limiting portion to limit the position of the connecting piece, and the second limiting portion is bent towards the gantry relative to the matching portion. The energy storage spring is fixedly arranged between the connecting piece and the gantry, and one end of the energy storage spring close to the connecting piece cooperates with the second limiting portion, and the second limiting portion is used to limit the swinging amplitude of the energy storage spring.

[0006] Through the above solution, the connecting piece provided in this application is a plate-shaped stamping part, which not only has a simple structure, but also can save the raw materials required in the production process, so as to achieve the purpose of reducing the manufacturing cost of the energy storage component and saving the use cost of the circuit breaker. In addition, the connecting piece provided in this application further includes a matching portion and a second limiting portion. The matching portion can cooperate with the first limiting portion provided on the bracket to limit the connecting piece by using the bracket. The second limiting portion can limit one end of the energy storage spring close to the connecting piece, thereby reducing the swinging amplitude of the energy storage spring. In this way, on the basis of saving costs, the use reliability of the connecting piece is ensured.

[0007] In a possible design, the connecting piece further includes a body portion, and both the matching portion and the second limiting portion are connected to the body portion. The body portion is supported on the bracket. The connecting piece has a slit, and the matching portion is formed by stamping the connecting piece on one side of the slit, and the second limiting portion is formed by stamping the connecting piece on the other side of the slit.

[0008] Through the above solution, the connecting member has slits. The slits divide the connecting member into multiple regions, and all the multiple regions are connected to the body portion of the connecting member, which can not only ensure the integrity of the connecting member, but also, during the stamping process, the different regions can be shaped separately, thus ensuring that the functions of the connecting member will not be reduced due to the integral setting. In this way, on the basis of cost savings, the reliability of the connecting member in use is guaranteed.

[0009] In a possible design, the side plate includes a first sub-plate and a second sub-plate arranged at intervals. The bracket is U-shaped and includes a first connecting plate, a support plate, and a second connecting plate connected in sequence. The first connecting plate is fixedly connected to the first sub-plate, and the second connecting plate is fixedly connected to the second sub-plate. The body portion is supported on the support plate.

[0010] Through the above solution, since the side plate includes a first sub-plate and a second sub-plate, and there is a gap between the first sub-plate and the second sub-plate for installing the internal components of the circuit breaker, the bracket is set as a U-shaped structure, so that the bracket can be respectively connected to the first sub-plate and the second sub-plate, thereby improving the stability of the bracket. And the U-shaped structure in which the first connecting plate, the support plate, and the second connecting plate are connected in sequence can also reduce the possibility of the connecting member falling out of the bracket during use, increasing the reliability of the energy storage component in use, and thus ensuring the reliability of the circuit breaker in use.

[0011] In a possible design, the first limiting portion is a first slot provided on the first connecting plate, and the matching portion is a first insertion strip extending from the body portion towards the first connecting plate, and the first insertion strip is inserted into the first slot. And / or, the first limiting portion is a second slot provided on the second connecting plate, and the matching portion is a second insertion strip extending from the body portion towards the second connecting plate, and the second insertion strip is inserted into the second slot.

[0012] Through the above solution, firstly, the cooperation between the insertion strip and the slot is relatively simple, and the insertion strip and the slot are simple to manufacture with fewer manufacturing steps, so that the production process of the connecting member can be simplified, and the production cost and time of the connecting member can be reduced. Secondly, the first limiting portion can be separately provided on the first connecting plate or the second connecting plate, or the first limiting portion is provided on both the first connecting plate and the first connecting plate. The matching portion is set according to the setting of the first limiting portion, so that the setting of the first limiting portion and the matching portion can be diversified and can be selected according to actual needs.

[0013] In a possible design, the first limiting portion is a card slot provided on the support plate, and the matching portion is a card strip bent towards the support plate relative to the body portion, and the card strip is snapped into the card slot.

[0014] With the above solution, the mating part is a clamping strip bent towards the support plate. When the clamping strip is inserted into the card slot, the bracket limits the connecting piece. The bent clamping strip enables the connecting piece to hook the bracket. In this way, the limiting effect of the bracket on the connecting piece is improved, the reliability of the energy storage component in use is increased, the possibility of the connecting piece falling off the bracket is reduced, and the reliability of the circuit breaker in use is increased.

[0015] In a possible design, there is a gap between the mating part located within the first limiting part and the first limiting part.

[0016] With the above solution, when the connecting piece is supported on the bracket, there is a certain gap between the part of the mating part inserted or snapped into the first limiting part and the inner wall of the first limiting part. In this way, when the energy storage spring drives the connecting piece and the connecting piece swings with the protrusion as the fulcrum, the first limiting part and the mating part can provide sufficient space for the swinging of the connecting piece, reducing the probability of the problem that the connecting piece cannot swing due to the first limiting part over-limiting the mating part.

[0017] In a possible design, the second limiting part is a cylindrical structure provided on the main body part, and the aperture of the central hole of the second limiting part is larger than the outer diameter of the energy storage spring. The end of the energy storage spring close to the connecting piece is located within the second limiting part.

[0018] With the above solution, the second limiting part is set as a cylindrical structure, and the end of the energy storage spring close to the connecting piece is located within the cylindrical structure, which can achieve the effect of fully wrapping the end of the energy storage spring close to the connecting piece. In this way, no matter in the process of the energy storage spring storing energy and no matter which direction the energy storage spring swings, it can be supported by the second limiting part, thereby increasing the reliability of the energy storage spring in use and improving the reliability of the energy storage component in use.

[0019] In a possible design, the second limiting part is a plurality of limiting strips provided on the main body part, and the plurality of limiting strips are arranged at intervals along a circular track. The end of the energy storage spring close to the connecting piece is located within the space enclosed by the plurality of limiting strips.

[0020] With the above solution, by stamping a plurality of limiting strips on the connecting piece, this method is relatively simple and has few manufacturing steps. In this way, the production process of the connecting piece can be simplified, and the production cost and time of the connecting piece can be reduced. And the plurality of limiting strips are arranged according to a circular track, which can also make the plurality of limiting strips closer to the energy storage spring. In this way, when the energy storage spring has a swinging problem during the energy storage process, it can effectively limit the energy storage spring, increasing the reliability of the connecting piece in use, thereby improving the reliability of the energy storage component in use.

[0021] In a possible design, the support plate is provided with a protrusion facing the body part. The protrusion abuts against the body part, and there is a gap between the body part and the support plate at all other positions except the position where the protrusion abuts, so that the connecting piece can swing relative to the bracket with the protrusion as a fulcrum.

[0022] Through the above solution, a protrusion is provided on the bracket in this application. When the connecting piece is supported on the bracket, the protrusion abuts against part of the connecting piece. Since the energy storage spring abuts against the connecting piece, when the energy storage spring swings during the energy storage process, the energy storage spring can drive the connecting piece to swing together. In this way, the energy storage spring can be made to be as straight as possible as a whole during the energy storage process, thereby increasing the reliability of the energy storage spring and improving the reliability of the energy storage component.

[0023] In a second aspect, this application provides a circuit breaker, which includes a housing and the energy storage component mentioned in the first aspect above. The energy storage component, the side plate, and the gantry are all arranged inside the housing.

[0024] Through the above solution, the circuit breaker provided in this application selects a connecting piece with an integrated structure, simplifies the production process of the connecting piece, reduces the production cost and time of the connecting piece, uses 45 steel material to replace the original brass material to produce the connecting piece, and reduces the cost of raw materials while ensuring the strength of the connecting piece. Using the stamping process instead of the original casting process can not only reduce the material consumption but also improve the production efficiency of the connecting piece.

[0025] For the circuit breaker provided in the second aspect above, its beneficial effects can refer to the beneficial effects brought by the first aspect and each possible implementation manner of the first aspect, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an assembly drawing of the energy storage component, the side plate, and the gantry provided by the embodiment of this application.

[0027] Figure 2 It is a schematic structural diagram of the energy storage component provided by the embodiment of this application.

[0028] Figure 3 It is a schematic structural diagram of the connecting piece provided by the embodiment of this application.

[0029] Figure 4 It is a schematic structural diagram of the bracket provided by the embodiment of this application.

[0030] Figure 5 It is a schematic assembly structure diagram of the bracket and the connecting piece provided by the embodiment of this application.

[0031] Figure 6Another schematic diagram of the assembly structure of the bracket and the connector provided by the embodiment of the present application.

[0032] Explanation of reference numerals:

[0033] 100, bracket; 110, first limiting part; 120, first connecting plate; 130, support plate; 140, second connecting plate; 150, protrusion;

[0034] 200, connector; 210, mating part; 220, second limiting part; 230, body part;

[0035] 300, energy storage spring;

[0036] 400, side plate; 410, first sub-plate; 420, second sub-plate;

[0037] 500, gantry. Detailed implementation manners

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without making creative efforts shall fall within the protection scope of the present application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0040] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the accompanying drawings are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the presence of a plurality.

[0041] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0042] As used herein, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships may exist. For example, A and / or B may represent three cases: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this text generally indicates that the associated objects before and after are in an "or" relationship.

[0043] All directional terms used in the following description refer to the directions shown in the figures and do not limit the static contact of a circuit breaker and the specific structure of the circuit breaker in this application. For example, in the description of this application, terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0044] In addition, terms such as "first", "second", etc. in the description, claims or the above-mentioned drawings of this application are used to distinguish different objects, rather than to describe a specific order, and may explicitly or implicitly include one or more of such features.

[0045] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, "connected" or "coupled" in a mechanical structure may refer to a physical connection. For example, a physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a screw, bolt or other fixing member; a physical connection may also be a detachable connection, such as a snap connection or a snap-fit connection; a physical connection may also be an integral connection, such as a welded, bonded or integrally formed connection. "Connected" or "coupled" in a circuit structure may refer to not only a physical connection but also an electrical connection or a signal connection. For example, it may be a direct connection, that is, a physical connection, or it may be indirectly connected through at least one intermediate element, as long as the circuit is connected. It may also be the communication inside two elements; a signal connection may refer to not only a signal connection through a circuit but also a signal connection through a media medium, such as radio waves. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] With the continuous development of the circuit breaker industry, circuit breakers are evolving towards higher efficiency and reliability. As one of the important components of a circuit breaker, the energy storage component can drive the movement of the mechanism inside the circuit breaker. Therefore, the energy storage component has a significant impact on the circuit breaker.

[0047] In the prior art, due to the relatively complex structure of the energy storage component, and the connecting parts inside the energy storage component are usually cast from brass materials, this will result in a relatively high manufacturing cost of the energy storage component, thereby leading to a relatively high usage cost of the circuit breaker.

[0048] Based on this, the present application provides an energy storage component and a circuit breaker to solve the problems of high manufacturing cost of the energy storage component and high usage cost of the circuit breaker.

[0049] Figure 1 This is the assembly drawing of the energy storage component provided in the embodiment of the present application with the side plate and the gantry. As Figure 1 shown, the circuit breaker provided by the present application includes a housing and an energy storage component. The energy storage component, the side plate 400, and the gantry 500 are all arranged inside the housing.

[0050] The housing includes a base and an upper cover. After the upper cover and the base are closed, an installation space is formed. The energy storage component, the side plate 400, and the gantry 500 are all located in this installation space, and the gantry 500 is movably connected to the side plate 400.

[0051] The energy storage component includes: a bracket 100, a connecting part 200, and an energy storage spring 300. The bracket 100 is fixedly connected to the side plate 400. The connecting part 200 can be an integral structure. The connecting part 200 can be made of 45 steel material and can be formed by stamping.

[0052] The movement of the gantry 500 can drive the compression of the energy storage spring 300 inside the energy storage component, so that the energy storage spring 300 stores energy. During the release process of the energy storage spring 300, it can drive the moving contact of the circuit breaker through the components inside the circuit breaker.

[0053] In summary, the circuit breaker provided by the present application selects a connecting part 200 with an integral structure, simplifies the production process of the connecting part 200, reduces the production cost and time of the connecting part 200, uses 45 steel material to replace the original brass material to produce the connecting part 200, reduces the raw material cost while ensuring the strength of the connecting part 200, and uses the stamping process to replace the original casting process, which can not only reduce the material consumption but also improve the production efficiency of the connecting part 200.

[0054] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0055] Figure 2 This is a schematic structural diagram of the energy storage component provided by the embodiment of the present application. As Figure 1 and Figure 2 shown, the present application provides an energy storage component, and this energy storage component is applied to a circuit breaker.

[0056] The energy storage component includes: a bracket 100, a connecting piece 200, and an energy storage spring 300. The bracket 100 is fixedly connected to the side plate 400, and the bracket 100 is provided with a first limiting portion 110. The connecting piece 200 is supported on the bracket 100, and the connecting piece 200 is a plate-shaped stamping part. The connecting piece 200 includes a matching portion 210 and a second limiting portion 220. The matching portion 210 cooperates with the first limiting portion 110 to limit the position of the connecting piece 200, and the second limiting portion 220 bends towards the gantry 500 relative to the matching portion 210. The energy storage spring 300 is fixedly arranged between the connecting piece 200 and the gantry 500. One end of the energy storage spring 300 close to the connecting piece 200 cooperates with the second limiting portion 220, and the second limiting portion 220 is used to limit the swinging amplitude of the energy storage spring 300.

[0057] The bracket 100 and the side plate 400 can be connected by bolts and nuts, or the bracket 100 can be clamped on the side plate 400 to achieve the fixed connection between the bracket 100 and the side plate 400. The first limiting portion 110 can be integrally formed with the bracket 100, or the first limiting portion 110 can be arranged on the bracket 100 after the bracket 100 is formed.

[0058] The connecting piece 200 can be flat, and the connecting piece 200 can be manufactured by a stamping process. Both the matching portion 210 and the second limiting portion 220 can be formed on the flat plate by a stamping process. The matching portion 210 can cooperate with the first limiting portion 110 so that the bracket 100 can play a limiting role on the connecting piece 200, reducing the possibility of the connecting piece 200 falling off the bracket 100.

[0059] Since the bracket 100 is fixedly connected to the side plate 400, and the bracket 100 limits the connecting piece 200, the gantry 500 is movably connected to the side plate 400, and the energy storage spring 300 is installed in a compressed state. Under the action of the elastic force, both ends of the energy storage spring 300 can respectively abut against the connecting piece 200 and the gantry 500, enabling the energy storage spring 300 to be fixedly arranged between the connecting piece 200 and the gantry 500, thereby reducing the possibility of the energy storage spring 300 falling off.

[0060] During the process of the gantry 500 moving to drive the energy storage spring 300 to compress and store energy, the energy storage spring 300 will swing. Therefore, the second limiting part 220 is provided and the second limiting part 220 is bent towards the gantry 500 direction, so that the energy storage spring 300 can be limited, and thus the swing amplitude of the energy storage spring 300 can be limited, improving the use reliability of the energy storage component.

[0061] In summary, the connecting piece 200 provided by the present application is a plate-shaped stamping part, which not only has a simple structure, but also can save the raw materials required in the production process, so as to achieve the purpose of reducing the manufacturing cost of the energy storage component and saving the use cost of the circuit breaker. Moreover, the connecting piece 200 provided by the present application further includes a matching part 210 and a second limiting part 220. The matching part 210 can cooperate with the first limiting part 110 provided on the bracket 100 to limit the connecting piece 200 by using the bracket 100. The second limiting part 220 can limit one end of the energy storage spring 300 close to the connecting piece 200, thereby reducing the swing amplitude of the energy storage spring 300. In this way, on the basis of cost savings, the use reliability of the connecting piece 200 is ensured.

[0062] The structures of the connecting piece 200 and the bracket 100 and the cooperation relationship between the two will be introduced below with reference to the drawings.

[0063] Figure 3 is a schematic structural diagram of the connecting piece provided by the embodiment of the present application. As Figure 3 shown, the connecting piece 200 further includes a body part 230, and both the matching part 210 and the second limiting part 220 are connected to the body part 230. Combining Figure 2 and Figure 3 , the body part 230 is supported on the bracket 100. The connecting piece 200 has a slit. The matching part 210 is formed by stamping the connecting piece 200 on one side of the slit, and the second limiting part 220 is formed by stamping the connecting piece 200 on the other side of the slit.

[0064] The slit on the connecting piece 200 can be set by means of cutting or the like before stamping, and the slit on the connecting piece 200 can also be set by means of blanking or the like during the stamping process. The slit divides the plate-shaped connecting piece 200 into multiple regions, and part of the regions are formed into the matching part 210 by stamping, and the remaining regions are formed into the second limiting part 220 by stamping.

[0065] The body part 230 can be in a flat plate shape. An installation groove can be provided on the body part 230, which can be used to install a telescopic rod. One end of the telescopic rod is located in the installation groove, the other end of the telescopic rod abuts against the gantry 500, and the energy storage spring 300 is sleeved on the telescopic rod. By arranging the telescopic rod between the connecting piece 200 and the gantry 500 and sleeving the energy storage spring 300 on the telescopic rod, the swinging amplitude of the energy storage spring 300 during energy storage can be reduced.

[0066] In summary, the connecting piece 200 has a slit, and the arrangement of the slit divides the connecting piece 200 into multiple regions, and multiple regions are all connected to the body part 230 of the connecting piece 200. It can not only ensure that the connecting piece 200 is integrated, but also, during the stamping process, different regions can be shaped separately, so as to ensure that the functions of the connecting piece 200 will not be reduced due to the integrated setting. In this way, on the basis of cost savings, the use reliability of the connecting piece 200 is guaranteed.

[0067] Figure 4 is a schematic structural diagram of the bracket provided by the embodiment of the present application, as Figure 1 and Figure 4 shown, the side plate 400 includes a first sub-plate 410 and a second sub-plate 420 arranged at intervals. The bracket 100 is in a U shape and includes a first connecting plate 120, a support plate 130 and a second connecting plate 140 connected in sequence. The first connecting plate 120 is fixedly connected to the first sub-plate 410, and the second connecting plate 140 is fixedly connected to the second sub-plate 420. The body part 230 is supported on the support plate 130.

[0068] The first sub-plate 410 and the second sub-plate 420 can be symmetrically arranged, and the first sub-plate 410 and the second sub-plate 420 can have the same size and shape. There can be a gap between the first sub-plate 410 and the second sub-plate 420 to form an installation space for accommodating the gantry 500 and part of the energy storage components.

[0069] The first connecting plate 120, the support plate 130 and the second connecting plate 140 can be integrally formed into a U-shaped structure, or the first connecting plate 120, the support plate 130 and the second connecting plate 140 can be separately formed and then assembled into a U-shaped structure. The first connecting plate 120, the support plate 130 and the second connecting plate 140 can all be in a plate-like structure.

[0070] The first connecting plate 120 and the first sub-plate 410 can be connected by bolts and nuts, and the first connecting plate 120 and the first sub-plate 410 can also be snap-connected to each other. Similarly, the second connecting plate 140 and the second sub-plate 420 can be connected by bolts and nuts, and the second connecting plate 140 and the second sub-plate 420 can also be snap-connected to each other.

[0071] When the first connecting plate 120 is fixedly connected to the first sub-plate 410 and the second connecting plate 140 is fixedly connected to the second sub-plate 420, the positions of the first connecting plate 120 and the second connecting plate 140 relative to the side plate 400 are fixed. Since the first connecting plate 120, the support plate 130, and the second connecting plate 140 are connected in sequence, the position of the support plate 130 relative to the side plate 400 is also fixed. The body portion 230 can be at least partially in contact with the support plate 130. Based on this, when the position of the support plate 130 is relatively fixed, the support plate 130 can support the body portion 230.

[0072] In summary, since the side plate 400 includes the first sub-plate 410 and the second sub-plate 420, and there is a gap between the first sub-plate 410 and the second sub-plate 420 for installing the internal components of the circuit breaker, the bracket 100 is set in a U-shaped structure. In this way, the bracket 100 can be respectively connected to the first sub-plate 410 and the second sub-plate 420, thereby improving the stability of the bracket 100. And the U-shaped structure in which the first connecting plate 120, the support plate 130, and the second connecting plate 140 are connected in sequence can also reduce the possibility that the connecting member 200 falls out of the bracket 100 during use, increasing the reliability of the energy storage component in use, and thus ensuring the reliability of the circuit breaker in use.

[0073] There can be various ways for the bracket 100 to limit the connecting member 200. The following combines Figure 5 and Figure 6 Only two of them are illustrated as examples, but Figure 5 and Figure 6 do not constitute a limitation to the technical solution of this application.

[0074] Figure 5 FIG. 18 is a schematic assembly structure diagram of a bracket and a connecting member provided by an embodiment of this application.

[0075] In the first way, as Figure 5 shown, the first limiting portion 110 can be a first slot provided on the first connecting plate 120. Correspondingly, the mating portion 210 can be a first insertion bar extending from the body portion 230 towards the first connecting plate 120. The first insertion bar is inserted into the first slot. And / or, the first limiting portion 110 is a second slot provided on the second connecting plate 140, and the mating portion 210 is a second insertion bar extending from the body portion 230 towards the second connecting plate 140. The second insertion bar is inserted into the second slot.

[0076] When the first limiting portion 110 is the first slot, the first limiting portion 110 can be integrally formed with the first connecting plate 120 when the first connecting plate 120 is formed, or the first limiting portion 110 can also be provided on the first connecting plate 120 by means of cutting or engraving after the first connecting plate 120 is formed.

[0077] When the first limiting part 110 is the second slot, the first limiting part 110 can be integrally formed with the second connecting plate 140 when the second connecting plate 140 is formed, or the first limiting part 110 can also be disposed on the second connecting plate 140 by means of cutting or engraving after the second connecting plate 140 is formed.

[0078] The second insert bar can be disposed on the connecting member 200 by stamping.

[0079] The first limiting part 110 can be disposed only on the first connecting plate 120, or the first limiting part 110 can be disposed only on the second connecting plate 140, or the first limiting part 110 can be disposed on both the first connecting plate 120 and the second connecting plate 140.

[0080] When the first limiting part 110 is disposed on both the first connecting plate 120 and the second connecting plate 140, that is, the first slot is disposed on the first connecting plate 120 and the second slot is disposed on the second connecting plate 140. At this time, the main body part 230 extends the first insert bar toward the first slot, and the main body part 230 extends the second insert bar toward the second slot. At the same time, inserting the first insert bar and the second insert bar into the first slot and the second slot respectively can complete the limiting of the connecting member 200 by the bracket 100.

[0081] When the first method is selected, first, the cooperation between the insert bar and the slot is relatively simple, and the insert bar and the slot are simple to manufacture with fewer manufacturing steps. In this way, the production process of the connecting member 200 can be simplified, and the production cost and time of the connecting member 200 can be reduced. Second, the first limiting part 110 can be separately disposed on the first connecting plate 120 or the second connecting plate 140, or the first limiting part 110 can be disposed on both the first connecting plate 120 and the first connecting plate 120. The matching part 210 is disposed according to the setting of the first limiting part 110, so that the setting selection of the first limiting part 110 and the matching part 210 can be diversified and can be selected according to actual needs.

[0082] Figure 6 It is another schematic diagram of the assembly structure of the bracket and the connecting member provided by the embodiment of the present application.

[0083] The second method is as Figure 6 shown. The first limiting part 110 is a card slot disposed on the support plate 130, and the matching part 210 is a card bar bent toward the support plate 130 relative to the main body part 230, and the card bar is snapped into the card slot.

[0084] The first limiting part 110 can be integrally formed with the support plate 130 when the support plate 130 is formed, or the first limiting part 110 can also be disposed on the support plate 130 by means of cutting or engraving after the support plate 130 is formed.

[0085] The card strip can be provided on the connecting member 200 by stamping.

[0086] When the second method is selected, the engaging portion 210 is a card strip bent toward the support plate 130. When the card strip is snapped into the card slot, the bracket 100 limits the connecting member 200. The bent card strip can cause the connecting member 200 to hook the bracket 100. In this way, the limiting effect of the bracket 100 on the connecting member 200 is improved, the reliability of the energy storage component is increased, the possibility of the connecting member 200 falling off the bracket 100 is reduced, and the reliability of the circuit breaker is increased.

[0087] There can be various forms of setting the second limiting portion 220. Only two of them are illustrated in this application.

[0088] In the first setting form, the second limiting portion 220 is a cylindrical structure provided on the main body portion 230. The diameter of the central hole of the second limiting portion 220 is larger than the outer diameter of the energy storage spring 300. One end of the energy storage spring 300 close to the connecting member 200 is located inside the second limiting portion 220.

[0089] The cylindrical structure can be provided on the connecting member 200 by stamping. The cylindrical structure can be a square cylinder or a circular cylinder, etc. The diameter of the central hole of the cylindrical structure can be slightly larger than the outer diameter of the energy storage spring 300. In this way, the probability that the energy storage spring 300 cannot be installed due to the too small diameter of the central hole of the cylindrical structure when the energy storage spring 300 is placed into the second limiting portion 220 can be reduced.

[0090] Selecting the first setting form and setting the second limiting portion 220 as a cylindrical structure, with one end of the energy storage spring 300 close to the connecting member 200 located inside the cylindrical structure, can achieve a comprehensive wrapping effect on one end of the energy storage spring 300 close to the connecting member 200. In this way, no matter which direction the energy storage spring 300 swings during the energy storage process of the energy storage spring 300, it can be supported by the second limiting portion 220, thereby increasing the reliability of the energy storage spring 300 and improving the reliability of the energy storage component.

[0091] In the second setting form, as Figures 1 to 3 shown, the second limiting portion 220 is a plurality of limiting strips provided on the main body portion 230. The plurality of limiting strips are arranged at intervals along a circular track. One end of the energy storage spring 300 close to the connecting member 200 is located in the space formed by the plurality of limiting strips.

[0092] The limiting strips can be provided on the connecting member 200 by stamping. The arrangement track of the plurality of limiting strips can be circular, and the diameter of this circular track can be larger than the outer diameter of the energy storage spring 300. In this way, the problem that the energy storage spring 300 cannot be placed inside the second limiting portion 220 due to the too close arrangement position of the plurality of limiting strips can be reduced.

[0093] Select the second setting form. By stamping a plurality of limiting strips on the connecting member 200, this method is relatively simple and has few manufacturing steps, which can simplify the production process of the connecting member 200 and reduce the production cost and time of the connecting member 200. And the plurality of limiting strips are arranged in a circular track, which can also make the plurality of limiting strips closer to the energy storage spring 300. In this way, when the energy storage spring 300 swings during the energy storage process, it can effectively limit the energy storage spring 300, increasing the reliability of use of the connecting member 200, thereby improving the reliability of use of the energy storage assembly.

[0094] Since the energy storage spring 300 will shake during the energy storage process, the present application also makes some settings to reduce the negative effects generated when the energy storage spring 300 shakes.

[0095] As Figure 2 and Figures 4 to 6 shown, the support plate 130 is provided with a protrusion 150 towards the body portion 230. The protrusion 150 abuts against the body portion 230, and there is a gap between the remaining portions of the body portion 230 except the portion abutting against the protrusion 150 and the support plate 130, so that the connecting member 200 can swing relative to the bracket 100 with the protrusion 150 as a fulcrum.

[0096] The protrusion 150 can be integrally formed with the bracket 100, or the protrusion 150 can be formed separately from the bracket 100 and then assembled. An arc chamfer can be provided on the side of the protrusion 150 close to the connecting member 200. When the connecting member 200 is supported on the bracket 100, the protrusion 150 abuts against a part of the connecting member 200, and there is a gap between the parts not abutting against the protrusion 150 and the support plate 130 of the bracket 100.

[0097] There is a gap between the mating portion 210 located in the first limiting portion 110 and the first limiting portion 110. That is, when the connecting member 200 is supported on the bracket 100, there is a certain gap between the part of the mating portion 210 inserted or snapped into the first limiting portion 110 and the inner wall of the first limiting portion 110.

[0098] In this way, when the energy storage spring 300 drives the connecting member 200 to swing with the protrusion 150 as a fulcrum, the first limiting portion 110 and the mating portion 210 can provide sufficient space for the swing of the connecting member 200, reducing the probability of the problem that the connecting member 200 cannot swing due to excessive limiting of the mating portion 210 by the first limiting portion 110.

[0099] In summary, in the present application, a protrusion 150 is provided on the bracket 100. When the connecting member 200 is supported on the bracket 100, the protrusion 150 abuts against a part of the connecting member 200. Since the energy storage spring 300 abuts against the connecting member 200, when the energy storage spring 300 shakes during the energy storage process, the energy storage spring 300 can drive the connecting member 200 to shake together, so that the energy storage spring 300 can be kept as straight as possible as a whole during the energy storage process, thereby increasing the reliability of the energy storage spring 300 and improving the reliability of the energy storage component.

Claims

1. An energy storage component, applied to a circuit breaker, the circuit breaker comprising a side plate and a gantry, the gantry being movably connected to the side plate, characterized in that: The energy storage component comprises: A bracket, fixedly connected to the side plate, the bracket being provided with a first limiting portion; A connecting piece, supported on the bracket, wherein the connecting piece is a plate-shaped stamping piece; The connecting member includes a matching portion and a second limiting portion, wherein the matching portion matches with the first limiting portion to limit the position of the connecting member, and the second limiting portion is bent toward the gantry relative to the matching portion; An energy storage spring is fixedly arranged between the connecting member and the gantry, and one end of the energy storage spring close to the connecting member cooperates with the second limiting portion, and the second limiting portion is used to limit the swing amplitude of the energy storage spring.

2. The energy storage assembly according to claim 1, characterized in that: The connecting member further comprises a main body portion, and the matching portion and the second limiting portion are both connected to the main body portion; The main body is supported by the bracket; The connecting piece has a slit, and the connecting piece on one side of the slit is punched to form the matching portion, and the connecting piece on the other side of the slit is punched to form the second limiting portion.

3. The energy storage assembly according to claim 2, characterized in that: The side plate includes a first sub-plate and a second sub-plate arranged at intervals, the bracket is U-shaped, and includes a first connecting plate, a supporting plate, and a second connecting plate connected in sequence, the first connecting plate is fixedly connected to the first sub-plate, and the second connecting plate is fixedly connected to the second sub-plate; The main body is supported on the support plate.

4. The energy storage assembly according to claim 3, characterized in that: The first limiting portion is a first slot provided on the first connecting plate, the matching portion is a first inserting strip extending from the main body toward the first connecting plate, and the first inserting strip is inserted into the first slot; and / or, The first limiting portion is a second slot provided on the second connecting plate, the matching portion is a second inserting strip extending from the main body toward the second connecting plate, and the second inserting strip is inserted into the second slot.

5. The energy storage assembly according to claim 3, characterized in that: The first limiting portion is a slot provided on the support plate, the matching portion is a clip that is bent toward the support plate relative to the main body, and the clip is clipped into the slot.

6. The energy storage assembly according to claim 4 or 5, characterized in that: There is a gap between the matching portion located in the first limiting portion and the first limiting portion.

7. The energy storage assembly according to claim 2, characterized in that: The second limiting portion is a cylindrical structure provided on the main body, and the diameter of the central hole of the second limiting portion is larger than the outer diameter of the energy storage spring; One end of the energy storage spring close to the connecting member is located in the second limiting portion.

8. The energy storage assembly according to claim 2, characterized in that: The second limiting portion is a plurality of limiting strips disposed on the main body, and the plurality of limiting strips are disposed at intervals along a circular track; One end of the energy storage spring close to the connecting piece is located in a space surrounded by a plurality of limit strips.

9. The energy storage assembly according to claim 3, characterized in that: The support plate is provided with a protrusion toward the main body, the protrusion abuts against the main body, and all parts of the main body except the part abutting against the protrusion have a gap with the support plate, so that the connecting member can swing relative to the bracket with the protrusion as a fulcrum.

10. A circuit breaker, characterized in that: A device comprising a housing and an energy storage assembly as claimed in any one of claims 1 to 9; The energy storage assembly, the side plate and the gantry are all arranged in the shell.

Images