Circuit breaker handle and molded case circuit breaker
By designing a detachable handle base and multiple handle caps of different heights, combined with a positioning structure, the height of the circuit breaker handle is adjustable, solving the applicability problem of the circuit breaker in different scenarios and improving the applicability and ease of operation of the circuit breaker.
Patent Information
- Application Number
- CN202422838109.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-20
AI Technical Summary
The height of existing circuit breakers is usually fixed, which makes it difficult to adapt to the needs of various application scenarios, resulting in their inability to be used in some scenarios.
A circuit breaker handle is provided, including a detachable handle base and multiple handle caps of different heights. A positioning structure enables a reliable connection between the handle caps and the handle base, facilitating the replacement of handle caps of different heights as needed.
The adjustable handle solves the problem of circuit breakers being unusable in certain scenarios due to insufficient height, simplifies the assembly process, and improves the applicability and ease of operation of the circuit breaker.
Smart Images
Figure CN223598650U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of electrical connection devices, in particular to a circuit breaker handle and a molded case circuit breaker. BACKGROUND
[0002] A circuit breaker is an important electrical protection device, widely used in power systems and various electrical equipment. Its main function is to protect the circuit from overload, short circuit and other electrical faults, and ensure the safe and reliable operation of the electrical system.
[0003] The circuit breaker may have multiple application scenarios when in use, and different application scenarios have different height requirements for the circuit breaker. The height of the existing circuit breaker is usually fixed, and sometimes it is difficult to meet the application requirements of multiple scenarios. CONTENT OF THE UTILITY MODEL
[0004] The application provides a circuit breaker handle that can solve the technical problem that some circuit breakers cannot be used in specific scenarios due to insufficient height.
[0005] The technical solution of the utility model is as follows:
[0006] In a first aspect, the application provides a circuit breaker handle, which comprises a handle seat and a handle cap.
[0007] The handle seat is used to connect with the linkage structure inside the circuit breaker to drive the circuit breaker to close and open.
[0008] The number of handle caps is at least two, and any one of the handle caps can be detachably connected with the handle seat. Different handle caps have different heights.
[0009] The handle seat is detachably connected with one of the plurality of handle caps.
[0010] The circuit breaker handle provided by the first aspect comprises a detachable handle seat and handle cap, and a plurality of handle caps are provided for one handle seat. Different handle caps have different heights. In this way, when the circuit breaker is in use, the handle cap with the required height can be matched according to the use scenario of the circuit breaker, and the problem that the circuit breaker cannot be used due to insufficient height in some cases can be solved.
[0011] It can be understood that the problem of excessively high height of the circuit breaker can be solved from multiple angles. The application solves the problem of excessively high height of the circuit breaker in some cases by improving the structure of the circuit breaker handle, and the solution has the characteristics of simplicity and easy implementation.
[0012] In a possible design, a positioning structure is arranged between the handle seat and the handle cap, and the handle cap is positioned and installed with the handle seat through the positioning structure.
[0013] The handle of the circuit breaker provided by the embodiment is provided with a positioning structure between the handle seat and the handle cap, and the handle cap is positioned and installed with the handle seat through the positioning structure. In this way, the accuracy of the relative position between the handle cap and the handle seat can be ensured, and in addition, the fixation of the handle cap and the handle seat is facilitated, and assembly is convenient.
[0014] In a possible design, the positioning structure comprises a limiting protrusion and a limiting groove capable of being inserted, and the shape of the limiting groove is matched with the shape of the limiting protrusion.
[0015] The handle seat is provided with the limiting protrusion on the side used for connecting with the handle cap.
[0016] The handle cap is provided with the limiting groove on the side used for connecting with the handle seat.
[0017] The handle of the circuit breaker provided by the embodiment is provided with a positioning structure between the handle seat and the handle cap, and the handle cap is positioned and installed with the handle seat through the positioning structure. In this way, the accuracy of the relative position between the handle cap and the handle seat can be ensured, and in addition, the fixation of the handle cap and the handle seat is facilitated, and assembly is convenient.
[0018] In a possible design, the handle seat is provided with a reference plane on the side used for connecting with the handle cap, and the limiting protrusion is arranged on the reference plane.
[0019] In the first direction, the handle cap and the handle seat are inserted through the positioning structure, and the end face of the side of the handle cap used for connecting with the handle seat is in contact with the reference plane.
[0020] The handle of the circuit breaker provided by the embodiment is provided with a positioning structure between the handle seat and the handle cap, and the handle cap is positioned and installed with the handle seat through the positioning structure. In this way, the accuracy of the relative position between the handle cap and the handle seat can be ensured, and in addition, the fixation of the handle cap and the handle seat is facilitated, and assembly is convenient.
[0021] In a possible design, in the second direction, the limiting protrusion comprises opposite first and second sides, and the first and second sides are stress sides.
[0022] The surface of the first side is a first surface, and the surface of the second side is a second surface, and the first and second surfaces are both planes.
[0023] The limiting groove comprises opposite first and second groove walls, and the first and second groove walls are both planes.
[0024] In the inserted state of the handle cap and the handle seat, the first surface is in contact with the first groove wall, and the second surface is in contact with the second groove wall.
[0025] The second direction is perpendicular to the first direction.
[0026] The handle cap and the handle base are positioned in the second direction. In addition, in the present application, the first surface and the second surface are planes, and the first slot wall and the second slot wall are also planes. In the second direction, the limiting protrusion and the limiting recess are positioned through the larger plane contact, which helps to improve the positioning reliability of the handle cap and the handle base.
[0027] In a possible design, in the third direction, the limiting protrusion includes opposite third and fourth sides, and the third and fourth sides are non-stressed sides.
[0028] The third side is provided with a first positioning slot, and the fourth side is provided with a second positioning slot.
[0029] The limiting recess is provided with a first limiting rib and a second limiting rib, and the first limiting rib and the second limiting rib extend from the bottom of the limiting recess to the slot opening of the limiting recess in the first direction.
[0030] In the plugged state, the handle cap and the handle base are in contact in the third direction. The first limiting rib is in contact with the first positioning slot, and the second limiting rib is in contact with the second positioning slot.
[0031] The third direction is perpendicular to the first direction and the second direction.
[0032] The handle cap and the handle base are positioned in the third direction. In addition, since the third side and the fourth side are non-stressed sides, even if the contact area of the first positioning slot and the first limiting rib and the contact area of the second positioning slot and the second limiting rib are small, the positioning requirements of the handle cap and the handle base in the third direction can also be met.
[0033] In a possible design, the handle base includes a base body and a connecting column connected to each other. When the handle base is installed on the circuit breaker, in the first direction, the base body is located in the shell of the circuit breaker, and the connecting column protrudes out of the shell of the circuit breaker. One end of the connecting column protruding out of the shell is detachably connected to the handle cap.
[0034] The handle cap and the handle base are positioned in the third direction. In addition, since the third side and the fourth side are non-stressed sides, even if the contact area of the first positioning slot and the first limiting rib and the contact area of the second positioning slot and the second limiting rib are small, the positioning requirements of the handle cap and the handle base in the third direction can also be met.
[0035] In a possible design, the handle cap is provided with a screw mounting hole, and the screw mounting hole penetrates the handle cap.
[0036] The limiting protrusion is provided with a threaded hole matched with the screw mounting hole, and the handle cap and the handle base are fixedly connected through the screw.
[0037] The handle cap and the handle base of the circuit breaker handle provided by the embodiment are first positioned through the positioning structure and then fastened and connected through the screw during assembly, and the connecting structure has the characteristics of accurate positioning, reliable connection and convenient disassembly.
[0038] In a second aspect, based on the same inventive concept, the application further provides a molded case circuit breaker comprising the circuit breaker handle of any structure provided in the first aspect.
[0039] The circuit breaker handle provided in the second aspect has the beneficial effects as described in the first aspect and the possible embodiments of the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS
[0040] Figure 1 A structure schematic diagram of a circuit breaker provided by the prior art is shown.
[0041] Figure 2 A structure schematic diagram of a circuit breaker handle provided by an embodiment of the application is shown.
[0042] Figure 3 A structure schematic diagram of a handle cap of the circuit breaker handle is shown. Figure 2 A structure schematic diagram of a handle base of the circuit breaker handle is shown.
[0043] Figure 4 A structure schematic diagram of a handle cap of the circuit breaker handle is shown. Figure 2 A structure schematic diagram of a handle cap of the circuit breaker handle is shown.
[0044] Figure 5 A structure schematic diagram of a handle cap of the circuit breaker handle is shown. Figure 3 A structure schematic diagram of the handle base of the circuit breaker handle from another perspective is shown.
[0045] Figure 6 A front view of the circuit breaker handle is shown. Figure 2
[0046] An A-A sectional view of the circuit breaker handle is shown. Figure 7 Figure 6 A B-B sectional view of the circuit breaker handle is shown.
[0047] Figure 8 A B-B sectional view of the circuit breaker handle is shown. Figure 6 A B-B sectional view of the circuit breaker handle is shown.
[0048] The reference signs in the prior art: A, circuit breaker handle;
[0049] The reference signs in the application: B, circuit breaker handle;
[0050] B1, handle base; B11, reference plane; B12, base body; B13, connecting column; B14, blind hole;
[0051] B2, handle cap;
[0052] B3, positioning structure; B31, limiting protrusion; B311, first surface; B312, second surface; B313, first positioning groove; B314, second positioning groove; B32, limiting groove; B321, first groove wall; B322, second groove wall; B323, first limiting rib; B324, second limiting rib;
[0053] B4, screw;
[0054] D1, first direction; D2, second direction; D3, third direction. DETAILED DESCRIPTION
[0055] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.
[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The use of the terms "including," "comprising," or "having" and variations thereof in the specification and claims of this application and the summary are intended to cover both the inclusive and exclusive cases.
[0057] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that any of the embodiments described herein can be incorporated into any other embodiment.
[0058] The term "and / or", used in the present document, is used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of existence of A, existence of A and B, and existence of B. In addition, the character " / " in the present document generally represents an "or" relationship between the front and rear associated objects.
[0059] In addition, the terms "first", "second", and the like in the description and claims of the present application or the above drawings are used to distinguish different objects, and are not used to describe a particular order, which can be explicitly or implicitly included one or more features.
[0060] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more (including two), and similarly, "a plurality of groups" means two or more groups (including two groups).
[0061] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", and "connecting" should be understood broadly, for example, "connecting" or "connecting" of mechanical structure can mean physical connection, for example, physical connection can be fixed connection, for example, fixed connection by spacer, for example, fixed connection by screw, bolt or other spacer. Physical connection can also be detachable connection, for example, mutual clamping or clamping connection. Physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0062] The present application will be described in detail below with reference to the accompanying drawings.
[0063] Figure 1 The structure diagram of the circuit breaker provided by the prior art is shown in Figure 1 The height of the circuit breaker is defined as: the maximum distance H between the end surface of the circuit breaker handle A and the bottom surface of the circuit breaker in the first direction during the closing and opening process of the circuit breaker.
[0064] The circuit breaker can have multiple application scenarios when in use, and different application scenarios have different height requirements for the circuit breaker. In the prior art, the height of the circuit breaker is usually fixed, and sometimes it is difficult to meet the application requirements of multiple scenarios.
[0065] In order to solve the technical problem that some circuit breakers cannot be used due to height problems, the present application focuses on the circuit breaker handle A, and solves the technical problem that the use scenario of the circuit breaker is limited due to the height not meeting the requirements in some cases by changing the height of the circuit breaker handle A.
[0066] Figure 2 The structure diagram of a circuit breaker handle provided by an embodiment of the present application is shown in Figure 3 The structure diagram of the handle seat in Figure 2 The structure diagram of the handle cap in Figure 4 The structure diagram of the handle cap in Figure 2 The structure diagram of the handle cap in
[0067] Please refer to Figures 2 to 4The circuit breaker handle B provided by the application comprises a handle seat B1 and a handle cap B2; the handle seat B1 is used to be connected with a linkage structure inside the circuit breaker to drive the circuit breaker to close and open;
[0068] The number of the handle cap B2 is at least two, any one of the handle cap B2 can be detachably connected with the handle seat B1, and different handle caps B2 have different heights; the handle seat B1 is detachably connected with one of the plurality of handle caps B2.
[0069] Please continue to refer to Figure 2 Specifically, in the structure of the circuit breaker, the circuit breaker handle B is an important component. Generally, part of the circuit breaker handle B is located outside the circuit breaker shell, another part of the circuit breaker handle B is located inside the circuit breaker shell, and the part of the circuit breaker handle B located inside the shell is connected with the linkage structure inside the circuit breaker. When the circuit breaker is used, the linkage structure can be driven by pulling the part of the circuit breaker handle B outside the shell, so as to close and open the circuit breaker.
[0070] The circuit breaker handle B provided by the application, at least part of the handle seat B1 is located inside the circuit breaker shell, so as to be connected with the linkage structure inside the circuit breaker; the handle cap B2 is arranged on the side of the handle seat B1 facing the outside of the circuit breaker, which is the part of the circuit breaker handle B located outside the shell, and the circuit breaker can be operated by means of the handle cap B2 to close and open the circuit breaker.
[0071] In the application, the circuit breaker handle B is divided into a handle seat B1 and a handle cap B2 which can be detached, and a handle seat B1 is equipped with a plurality of handle caps B2 at the same time, and different handle caps B2 have different heights; in this way, when the circuit breaker is used, the handle cap B2 with the required height can be matched according to the use scene of the circuit breaker, thereby solving the problem that the circuit breaker cannot be used due to the height not meeting the requirements in some cases.
[0072] It can be understood that the problem of excessively high height of the circuit breaker can be solved from multiple angles. The application solves the problem of excessively high height of the circuit breaker in some cases by improving the structure of the circuit breaker handle B, and the solution has the characteristics of simplicity and easy implementation.
[0073] In addition, in some scenes, the length of the force arm of the circuit breaker handle B can be changed by replacing the handle cap B2, so that the closing and opening of the circuit breaker can be more labor-saving.
[0074] Please continue to refer to Figure 3 and Figure 4 In some embodiments of the application, a positioning structure B3 is arranged between the handle seat B1 and the handle cap B2, and the handle cap B2 is positioned and installed with the handle seat B1 through the positioning structure B3.
[0075] Specifically, in some embodiments of the present application, by arranging the positioning structure B3 between the handle seat B1 and the handle cap B2, when the handle cap B2 is connected with the handle seat B1, the handle cap B2 can determine the positional relationship between the handle cap B2 and the handle seat B1 through the positioning structure B3, and then the handle cap B2 and the handle seat B1 are fixed by the fastener.
[0076] Therefore, the circuit breaker handle B provided by the present application can ensure the accuracy of the relative position between the handle cap B2 and the handle seat B1, and is beneficial to the subsequent fixation of the handle cap B2 and the handle seat B1, and facilitates assembly.
[0077] Please continue to refer to Figure 3 With Figure 4 In some embodiments of the present application, the positioning structure B3 comprises a limiting protrusion B31 and a limiting groove B32 capable of being inserted, the shape of the limiting groove B32 is matched with the shape of the limiting protrusion B31; the side of the handle seat B1 for connecting with the handle cap B2 is provided with the limiting protrusion B31; and the side of the handle cap B2 for connecting with the handle seat B1 is provided with the limiting groove B32.
[0078] Specifically, in the present application, the shape of the limiting groove B32 is matched with the shape of the limiting protrusion B31, which means that after the limiting groove B32 and the limiting protrusion B31 are inserted, the limiting protrusion B31 can play a role of positioning the handle cap B2 through the limiting groove B32, and the position of the handle cap B2 on the handle seat B1 is determined.
[0079] Figure 5 For Figure 3 The structure schematic view of another perspective of the handle seat is shown in Figure 5 In some embodiments of the present application, the circuit breaker handle B is the handle of a plastic shell circuit breaker. For the plastic shell circuit breaker, the side of the circuit breaker handle B for connecting with the linkage structure is generally provided with a relatively deep blind hole B14, which is matched with the connecting shaft of the linkage structure, and the connecting shaft is inserted into the blind hole B14, so that the circuit breaker handle B can better drive the linkage structure through the connecting shaft.
[0080] In some embodiments of the present application, the limiting protrusion B31 is arranged on the handle seat B1 for connecting one side of the handle cap B2, and the limiting groove B32 is arranged on the handle cap B2 for connecting one side of the handle seat B1; in this way, the arrangement of the limiting protrusion B31 on the handle seat B1 does not affect the arrangement of the blind hole B14 on the handle seat B1, and further does not affect the assembly of the handle seat B1 and the linkage structure.
[0081] In summary, in the present application, the limiting protrusion B31 is arranged on the side of the handle seat B1 for connecting the handle cap B2, and the limiting groove B32 is arranged on the side of the handle cap B2 for connecting the handle seat B1; the limiting groove B32 and the limiting protrusion B31 cooperate to position the handle cap B2, and the limiting structure is simple and easy to implement, and the arrangement of the limiting structure does not affect the assembly of the handle seat B1 and the linkage structure.
[0082] Figure 6 For Figure 2 the front view, Figure 7 For Figure 6 the A-A cross-sectional view, please refer to Figure 3 and Figure 7 In some embodiments of the present application, the side of the handle seat B1 for connecting the handle cap B2 is provided with a reference plane B11, and the limiting protrusion B31 is arranged on the reference plane B11; in the first direction D1, the handle cap B2 and the handle seat B1 are inserted through the positioning structure B3, and the end surface of the side of the handle cap B2 for connecting the handle seat B1 is in contact with the reference plane B11.
[0083] Please refer to Figure 2 and Figure 7 In the present application, the circuit breaker handle B is composed of a handle seat B1 and a handle cap B2, and the handle cap B2 is generally located outside the circuit breaker. When the circuit breaker is operated to close or open, an acting force is applied through the handle cap B2 to make the circuit breaker close or open.
[0084] In some embodiments of the present application, the limiting protrusion B31 is arranged on the reference plane B11 of the handle seat B1, and the end surface of the side of the handle cap B2 for connecting the handle seat B1 is in contact with the reference plane B11; in this way, in the first direction D1, the handle cap B2 and the handle seat B1 are positioned.
[0085] In addition, the end surface of the side of the handle cap B2 for connecting the handle seat B1 is in contact with the reference plane B11, in this way, the connection between the handle cap B2 and the handle seat B1 is relatively tight, the force acting on the handle cap B2 can be better transmitted to the handle seat B1, and it is easier to control the circuit breaker through the handle cap B2.
[0086] Figure 8 For Figure 6 B-B cross-sectional view. Please combine Figure 3 , Figure 4 and Figure 8 , in some embodiments of the application, along the second direction D2, the limiting protrusion B31 includes opposite first and second sides, the first and second sides are the force side; the surface of the first side is the first surface B311, the surface of the second side is the second surface B312, the first surface B311 and the second surface B312 are both planes; the limiting groove B32 includes opposite first and second groove walls B321 and B322, the first and second groove walls B321 and B322 are both planes;
[0087] The handle cap B2 and the handle seat B1 are in the plugged state, the first surface B311 is in contact with the first groove wall B321, and the second surface B312 is in contact with the second groove wall B322; the second direction D2 is perpendicular to the first direction D1.
[0088] Please combine Figure 3 and Figure 8 , in this application, in the second direction D2, the surfaces of the first and second sides of the limiting protrusion B31 are both planes. Correspondingly, the first and second groove walls B321 and B322 of the limiting groove B32 are also both planes, in the plugged state of the handle cap B2 and the handle seat B1, the first surface B311 is in contact with the first groove wall B321, and the second surface B312 is in contact with the second groove wall B322, so that the positioning between the handle cap B2 and the handle seat B1 can be realized in the second direction D2.
[0089] In addition, please combine Figure 2 and Figure 8 , when the circuit breaker is operated, the handle cap B2 will apply force to the circuit breaker. In the second direction D2, the first and second sides of the limiting protrusion B31 are the force side and need to bear the external force applied to the circuit breaker. In this application, the first and second surfaces B311 and B312 are planes, and the first and second groove walls B321 and B322 are also planes, in the second direction D2, the limiting protrusion B31 and the limiting groove B32 are limited by large plane contact, so as to improve the positioning reliability of the handle cap B2 and the handle seat B1.
[0090] Please combine Figure 3 and Figure 8In some embodiments of the present application, the limiting protrusion B31 comprises opposite third and fourth sides in the third direction D3, which are non-force-bearing sides; the third side is provided with a first positioning groove B313, and the fourth side is provided with a second positioning groove B314;
[0091] For reference Figure 4 , the limiting recess B32 is provided with a first limiting rib B323 and a second limiting rib B324, both of which extend from the groove bottom of the limiting recess B32 to the groove opening of the limiting recess B32 in the first direction D1;
[0092] For reference Figure 3 , Figure 4 and Figure 8 , in the plugged state of the handle cap B2 and the handle base B1, the first limiting rib B323 contacts the first positioning groove B313, and the second limiting rib B324 contacts the second positioning groove B314 in the third direction D3;
[0093] The third direction D3 is perpendicular to the first direction D1 and the second direction D2.
[0094] Specifically, for reference Figure 8 , in some embodiments of the present application, in the third direction D3, the first positioning groove B313 of the limiting protrusion B31 contacts the first limiting rib B323 in the limiting recess B32, and the second positioning groove B314 of the limiting protrusion B31 contacts the second limiting rib B324 in the limiting recess B32, so that the handle base B1 and the handle cap B2 can be positioned in the third direction D3.
[0095] In addition, for reference Figure 2 and Figure 8 , in some embodiments of the present application, the third side and the fourth side are non-force-bearing sides, so that even if the contact area of the first positioning groove B313 and the first limiting rib B323, and the second positioning groove B314 and the second limiting rib B324 is small, the positioning requirement of the handle cap B2 and the handle base B1 in the third direction D3 can be met.
[0096] It should be noted that in some embodiments of the present application, the first positioning groove B313 and the second positioning groove B314 can be rectangular grooves, the cross-sectional shape of the first limiting rib B323 can be adapted to the cross-sectional shape of the first positioning groove B313, and the cross-sectional shape of the second limiting rib B324 can be adapted to the cross-sectional shape of the second positioning groove B314; in this way, the cooperation of the first limiting rib B323 and the first positioning groove B313, and the second limiting rib B324 and the second positioning groove B314 is more stable.
[0097] Please continue to refer to Figure 3 In some embodiments of the present application, the handle seat B1 comprises a seat body B12 and a connecting column B13 connected thereto,
[0098] When the handle seat B1 is installed on the circuit breaker, along the first direction D1, the seat body B12 is located in the housing of the circuit breaker, the connecting column B13 protrudes out of the housing of the circuit breaker, and one end of the connecting column B13 protruding out of the housing is detachably connected with the handle cap B2.
[0099] Specifically, please refer to Figure 2 and Figure 3 In some embodiments of the present application, the handle seat B1 comprises a seat body B12 and a connecting column B13 connected thereto, the seat body B12 is located in the housing of the circuit breaker, and the connecting column B13 protrudes out of the housing of the circuit breaker, so as to facilitate the dismounting and mounting of the handle cap B2.
[0100] Please refer to Figure 2 and Figure 7 In some embodiments of the present application, the handle cap B2 is provided with a screw B4 mounting hole penetrating through the handle cap B2.
[0101] The limiting protrusion B31 is provided with a threaded hole matched with the screw B4 mounting hole, and the handle cap B2 and the handle seat B1 are fixedly connected through the screw B4.
[0102] Specifically, in some embodiments of the present application, along the first direction D1, the head of the screw B4 is located at the screw B4 mounting hole, and the shank of the screw B4 is threadedly connected with the threaded hole, so that the detachable connection of the handle cap B2 and the handle seat B1 can be realized.
[0103] Based on the above, when the handle cap B2 and the handle seat B1 are assembled, the handle cap B2 and the handle seat B1 are first positioned through the positioning structure B3, and then fastened and connected through the screw B4. This kind of connection structure has the characteristics of accurate positioning, reliable connection and convenient dismounting.
[0104] Please continue to refer to Figure 5 Based on the same inventive concept, the present application also provides a molded case circuit breaker comprising the circuit breaker handle B of any of the above.
[0105] The molded case circuit breaker may have various application scenarios when in use, and different application scenarios have different height requirements for the molded case circuit breaker.
[0106] It should be noted that the application scenarios mentioned in the present application include not only installation environments, requirements of different countries and regions, but also use environments. Taking the installation environment as an example, the molded case circuit breaker is generally installed with a distribution box or a power distribution cabinet, and the installation space is limited. In some cases, the height of the molded case circuit breaker may be too high to be installed. At this time, the shorter circuit breaker handle B can be replaced to solve the problem of the molded case circuit breaker being too high to be installed.
[0107] For example, in some foreign countries or regions, there are requirements for the overall height of the molded case circuit breaker. At this time, the height of the circuit breaker handle B can be selected to improve the compliance of the molded case circuit breaker.
[0108] For example, when the molded case circuit breaker is used, it sometimes needs to be connected with an external electric operator to control the closing and opening of the molded case circuit breaker. In this case, the molded case circuit breaker needs to have a higher handle, so that the circuit breaker handle B can be connected with the electric operator. Therefore, the molded case circuit breaker can be matched with a higher circuit breaker handle B.
[0109] In summary, the present application provides a molded case circuit breaker, which is matched with the circuit breaker handle B provided by the present application. Therefore, the molded case circuit breaker has higher compliance and wider use scenarios. In addition, the molded case circuit breaker of the present application has other beneficial effects, which can be seen from the beneficial effects of the circuit breaker handle B.
[0110] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features. The modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A circuit breaker handle characterized by, The handle seat is used for connecting with a linkage structure inside the circuit breaker to drive the circuit breaker to open and close; The number of the handle caps is at least two, and any one of the handle caps can be detachably connected with the handle seat, and the heights of different handle caps are different; The handle seat is detachably connected with one of the handle caps. The handle seat and the handle cap are provided with a positioning structure, and the handle cap is positioned and installed with the handle seat through the positioning structure.
2. The circuit breaker handle of claim 1, wherein, The positioning structure comprises a limiting protrusion and a limiting groove capable of being inserted, and the shape of the limiting groove is matched with the shape of the limiting protrusion; 3. The circuit breaker handle of claim 2, wherein, The side of the handle seat used for connecting with the handle cap is provided with the limiting protrusion; The side of the handle cap used for connecting with the handle seat is provided with the limiting groove. The side of the handle seat used for connecting with the handle cap is provided with a reference plane, and the limiting protrusion is arranged on the reference plane; 4. The circuit breaker handle of claim 3, wherein, In a first direction, the handle cap and the handle seat are inserted through the positioning structure, and the end surface of the side of the handle cap used for connecting with the handle seat is in contact with the reference plane. In a second direction, the limiting protrusion comprises opposite first and second sides, and the first and second sides are stress sides; 5. The circuit breaker handle of claim 4, wherein, The surface of the first side is a first surface, and the surface of the second side is a second surface, and the first and second surfaces are planes; The limiting groove comprises opposite first and second groove walls, and the first and second groove walls are planes; In the inserted state of the handle cap and the handle seat, the first surface is in contact with the first groove wall, and the second surface is in contact with the second groove wall; The second direction is perpendicular to the first direction. In a third direction, the limiting protrusion comprises opposite third and fourth sides, and the third and fourth sides are non-stress sides; 6. The circuit breaker handle of claim 5, wherein, The third side is provided with a first positioning groove, and the fourth side is provided with a second positioning groove; The limiting groove is provided with a first limiting rib and a second limiting rib, and the first and second limiting ribs extend from the groove bottom of the limiting groove to the groove opening of the limiting groove along the first direction; In the inserted state of the handle cap and the handle seat, along the third direction, the first limiting rib is in contact with the first positioning groove, and the second limiting rib is in contact with the second positioning groove; The third direction is perpendicular to the first and second directions. The handle seat comprises a seat body and a connecting column connected with each other, 7. The handle of any of claims 1-4, wherein, When the handle seat is installed in the circuit breaker, along a first direction, the seat body is located in the shell of the circuit breaker, and the connecting column protrudes out of the shell of the circuit breaker, and one end of the connecting column protruding out of the shell is detachably connected with the handle cap. The handle cap is provided with a screw mounting hole penetrating through the handle cap; 8. The handle of claim 3 or 4, wherein, The limiting protrusion is provided with a threaded hole matched with the screw mounting hole, and the handle cap and the handle seat are fixedly connected through a screw. The circuit breaker handle comprises any one of the handle seat according to claims 1 to 8.
9. A molded case circuit breaker characterized by,