Combined circuit breaker

Abstract

The present application discloses a combined circuit breaker. The combined circuit breaker comprises a plurality of circuit breaker bodies and a protective accessory; the plurality of circuit breaker bodies are successively arranged, combined and installed; the circuit breaker bodies are successively connected by means of power lines; each circuit breaker body is provided with a line passing opening for accommodating a corresponding power line, and the line passing openings are communicated with each other to form a line passing groove; and the protective accessory is installed on the plurality of circuit breaker bodies, and corresponds to the line passing groove so as to cover the power lines.

Description

Combined circuit breaker

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 10, 2023, with application number 202322163226.0 and invention name “Combined Circuit Breaker”, the entire contents of which are incorporated by reference into the application. Technical Field

[0002] The present application relates to the field of electrical technology, and in particular to a combined circuit breaker. Background Art

[0003] A circuit breaker is a switching device capable of closing, carrying, and interrupting current under normal circuit conditions, and closing, carrying, and interrupting current under abnormal circuit conditions within a specified timeframe. Circuit breakers are categorized by their scope of use as high-voltage combination circuit breakers and low-voltage circuit breakers. The distinction between high and low voltage is relatively vague, with voltages above 3kV generally considered high-voltage electrical equipment. Circuit breakers can be used to distribute electrical energy, infrequently start asynchronous motors, and protect power lines and motors. They automatically disconnect circuits in the event of severe overloads, short circuits, undervoltages, or other faults. Their functionality is equivalent to a combination of a fuse switch and an over- and under-temperature relay, and interrupting the fault current generally requires no component changes.

[0004] Currently, combined circuit breakers arrange and combine multiple circuit breakers, and each circuit breaker needs to be connected in sequence through power cables. However, since the power cables are exposed to the circuit breaker during connection and there is no corresponding cable management structure, the power cables are messy and affect the appearance. At the same time, the power cables are easily damaged by moisture, which shortens the service life of the power cables. Technical issues

[0005] The main purpose of this application is to propose a combined circuit breaker, aiming to solve the problem that the power cord of the combined circuit breaker affects the appearance and has a short service life. Technical Solutions

[0006] To achieve the above objectives, the combined circuit breaker proposed in this application includes:

[0007] A plurality of circuit breaker bodies, wherein the plurality of circuit breaker bodies are sequentially arranged and assembled, and each of the circuit breaker bodies is sequentially connected via a power line;

[0008] Wherein, each of the circuit breaker bodies is provided with a wire opening for accommodating the power line, and each of the wire openings is interconnected to form a wire slot;

[0009] A protective accessory is installed on the plurality of circuit breaker bodies and corresponds to the wire duct to cover each of the power lines.

[0010] In one embodiment, each circuit breaker body is provided with snap-fitting parts on opposite sides of the wire-passing opening, and the protective accessory is provided with snap-fitting parts on opposite sides of the wire-passing slot in the longitudinal direction, and the snap-fitting parts match the snap-fitting parts.

[0011] In one embodiment, each of the circuit breaker bodies is provided with a wire outlet hole, the wire outlet hole is located in the wire passage, and the wire outlet hole is used for allowing the power line to pass through.

[0012] In one embodiment, the two buckle portions are formed by bending the protective attachment inward.

[0013] In one embodiment, the protective attachment and the buckle portion are integrally formed.

[0014] In one embodiment, the length of the protective accessory is consistent with the sum of the thicknesses of each of the circuit breaker bodies.

[0015] In one embodiment, the protective attachment is made of metal.

[0016] In one embodiment, each of the wire passing openings has the same shape.

[0017] In one embodiment, the wire duct is rectangular.

[0018] In one embodiment, each circuit breaker body is provided with a first wiring terminal and a second wiring terminal, and the first wiring terminal and the second wiring terminal are connected to form a main circuit. Beneficial effects

[0019] The technical solution of the present application is to arrange and combine multiple circuit breaker bodies in sequence, and each of the circuit breaker bodies is connected in sequence through a power cord; wherein each of the circuit breaker bodies is provided with a wire port for accommodating the power cord, and each of the wire ports is interconnected to form a wire slot; the protective accessories are installed on the multiple circuit breaker bodies and correspond to the wire slots to cover each of the power cords. With this arrangement, the power cords are accommodated in the wire slots, and all of the power cords are covered by the protective accessories, which not only enhances the overall aesthetics of the combined circuit breaker, but also allows the protective accessories to hold the entire body together and help maintain overall stability. In addition, the protective accessories can effectively isolate interference from external factors such as water and wind, thereby extending the service life of the power cord. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] FIG1 is an external view of an embodiment of a combined circuit breaker of the present application without protective accessories;

[0022] FIG2 is an appearance diagram of an embodiment of a combined circuit breaker of the present application;

[0023] FIG3 is an appearance diagram of a single circuit breaker body of an embodiment of a combined circuit breaker of the present application;

[0024] FIG4 is a schematic structural diagram of a protective accessory of an embodiment of a combined circuit breaker of the present application;

[0025] FIG5 is a schematic diagram of the internal structure of a circuit breaker body according to an embodiment of the combined circuit breaker of the present application.

[0026] Description of Figure Numbers:

[0027] Reference numerals Reference numerals 100 Circuit breaker body 150 First connection terminal 110 Wire opening 160 Second connection terminal 120 Wire outlet 200 Protective attachment 130 Snap-fit ​​portion 210 Clamping portion 140 Wire slot

[0028] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Modes for Carrying Out the Invention

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0032] A circuit breaker is a switching device capable of closing, carrying, and interrupting current under normal circuit conditions, and closing, carrying, and interrupting current under abnormal circuit conditions within a specified timeframe. Circuit breakers are categorized by their scope of use as high-voltage combination circuit breakers and low-voltage circuit breakers. The distinction between high and low voltage is relatively vague, with voltages above 3kV generally considered high-voltage electrical equipment. Circuit breakers can be used to distribute electrical energy, infrequently start asynchronous motors, and protect power lines and motors. They automatically disconnect circuits in the event of severe overloads, short circuits, undervoltages, or other faults. Their functionality is equivalent to a combination of a fuse switch and an over- and under-temperature relay, and interrupting the fault current generally requires no component changes.

[0033] Currently, combined circuit breakers arrange and combine multiple circuit breakers, and each circuit breaker needs to be connected in sequence through power cables. However, since the power cables are exposed to the circuit breaker during connection and there is no corresponding cable management structure, the power cables are messy and affect the appearance. At the same time, the power cables are easily damaged by moisture, which shortens the service life of the power cables.

[0034] Please refer to FIG. 1 to FIG. 4 , the present application proposes a combined circuit breaker.

[0035] The combined circuit breaker includes a plurality of circuit breaker bodies 100 and protective accessories 200. The plurality of circuit breaker bodies 100 are arranged and assembled in sequence, and each of the circuit breaker bodies 100 is connected in sequence through a power cord. Each of the circuit breaker bodies 100 is provided with a wire opening 110 for accommodating the power cord, and each of the wire openings 110 is interconnected to form a wire slot 140. The protective accessories 200 are installed on the plurality of circuit breaker bodies 100 and correspond to the wire slot 140 to cover each of the power cords.

[0036] In one embodiment, the circuit breaker body 100 includes various components, including but not limited to arc extinguishing mechanisms and power terminals. The number of circuit breaker bodies 100 is not limited. Here, four circuit breaker bodies 100 are used as an example: the power cord of circuit breaker body 100 No. 1 is connected to circuit breaker body 100 No. 2 via a power cord. Circuit breaker body 100 No. 2 is further connected to circuit breaker body 100 No. 3 via a power cord. Circuit breaker body 100 No. 3 is further connected to circuit breaker body 100 No. 4 via a power cord. The four wire openings 110 form a large wire trough 140. The power cords are housed within the trough 140 and covered by protective accessories 200. This arrangement, housing the power cords within the trough 140 and covering them with protective accessories 200, not only enhances the aesthetics of the combined circuit breaker, but also provides stability by securing the entire assembly with protective accessories 200. Furthermore, it effectively isolates the power cords from external factors such as water and wind, extending their service life.

[0037] Referring to Figures 1 to 4 , the protective accessory 200 can be installed in the wire channel 140 in a variety of ways, including but not limited to screwing, snapping, and buttoning. To facilitate assembly and disassembly of the protective accessory 200 from the combined circuit breaker, in one embodiment, each circuit breaker body 100 is provided with snap-fitting portions 130 on opposite sides of the wire channel opening 110. The protective accessory 200 is provided with snap-fitting portions 210 on opposite sides of the wire channel 140 in the longitudinal direction, and the snap-fitting portions 210 mate with the snap-fitting portions 130. It is understood that during assembly, the snap-fitting portion 210 on one side of the protective accessory 200 is first aligned with the snap-fitting portion 130 on the outermost side of the circuit breaker body 100, and then the snap-fitting portion 210 on the other side of the circuit breaker body 100 is snapped into place to complete assembly. This arrangement improves the convenience of the protective accessory 200 during both assembly and disassembly.

[0038] Referring to Figure 4 , in one embodiment, each circuit breaker body 100 is provided with a wire outlet 120 located within the wire opening 110 . This outlet 120 is used to pass a power cord through. In this configuration, a power cord extends through the outlet 120 of a circuit breaker body 100 and connects to the next circuit breaker body 100 through the outlet 120 of the next circuit breaker body 100 . In one embodiment, the outlet 120 is circular.

[0039] Referring to Figure 3 , in one embodiment, the two latching portions 210 are formed by bending the protective accessory 200 inward. During assembly, the two sides of the protective accessory 200 are bent to clamp the circuit breaker body 100, and the latching portions 210 on both sides of the protective accessory 200 are respectively snapped into the locking portions 130 located at the ends of the circuit breaker body 100.

[0040] In one embodiment, the protective accessory 200 and the buckle portion 210 are integrally formed, thereby ensuring the rigidity of the protective accessory 200 and the buckle portion 210 and improving the structural stability of the protective accessory 200 when installed in the wire duct 140 formed by multiple circuit breaker bodies 100.

[0041] Referring to Figures 1 and 2, in one embodiment, the length of the protective accessory 200 is consistent with the sum of the thicknesses of each of the circuit breaker bodies 100. It is understandable that when the circuit breaker bodies 100 are assembled, only one protective accessory 200 is needed to cover all power lines. Of course, in other embodiments, the protective accessory 200 may include multiple sub-protective components, and the number of sub-protective components is consistent with the number of circuit breaker bodies 100. In this way, each sub-protective component is installed in the corresponding wire opening 110 of the circuit breaker body 100, sealing the power line at the wire opening 110. In this way, when the circuit breaker body 100 is used alone, it can still play a role in protecting the power line. Of course, this embodiment can protect all power lines with a single protective accessory 200, improving assembly efficiency while saving materials.

[0042] In one embodiment, the protective accessory 200 is made of metal, which ensures the rigidity of the protective accessory 200 and improves the waterproof performance of the protective accessory 200, thereby protecting the power cord from moisture and extending the service life of the power cord.

[0043] 1 and 4 , in one embodiment, the shape of each of the wire openings 110 is the same. This arrangement allows the wire openings 110 of each circuit breaker body 100 to be aligned and connected to each other without requiring careful alignment when the circuit breaker bodies 100 are assembled.

[0044] Referring to FIG. 1 , the shape of the cable trough 140 can be various, including trapezoidal, square, and other irregular shapes. In one embodiment, the cable trough 140 is rectangular. The protective attachment 200 is adapted to the shape of the cable trough 140, facilitating processing and improving production efficiency.

[0045] Referring to Figure 5 , in one embodiment, each circuit breaker body 100 is provided with a first terminal 150 and a second terminal 160. The first terminal 150 and the second terminal 160 are connected to form a main circuit. When the circuit breaker bodies 100 are combined, the second terminal 160 of the previous circuit breaker body 100 is connected to the first terminal 150 of the next circuit breaker body 100 via the power cord. The first terminal 150 can serve as either the input or output of the circuit breaker. This embodiment uses the first terminal 150 as the input of the circuit breaker as an example, and the second terminal 160 as the output. The first terminal 150 and the second terminal 160 are electrically connected to form a main circuit. When combined, the current connected to the first terminal 150 is output to the second terminal 160. The current from the second terminal 160 is then connected to the first terminal 150 of the next circuit breaker body 100 via the power cord, and so on.

[0046] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the contents of the present application specification and drawings under the application concept of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A combined circuit breaker, wherein: The combined circuit breaker comprises: A plurality of circuit breaker bodies, wherein the plurality of circuit breaker bodies are sequentially arranged and assembled, and each of the circuit breaker bodies is sequentially connected via a power line; Wherein, each of the circuit breaker bodies is provided with a wire passing opening for accommodating the power line, and each of the wire passing openings is interconnected to form a wire passing slot; A protective accessory is installed on the plurality of circuit breaker bodies and corresponds to the wire duct to cover each of the power lines.

2. The combined circuit breaker according to claim 1, wherein: Each circuit breaker body is provided with buckling parts on opposite sides of the wire passing opening, and the protective accessory is provided with buckling parts on opposite sides of the wire passing slot in the length direction, and the buckling parts match the buckling parts.

3. The combined circuit breaker according to claim 2, wherein: Each of the circuit breaker bodies is provided with a wire outlet hole, the wire outlet hole is located in the wire passage opening, and the wire outlet hole is used for the power line to pass through.

4. The combined circuit breaker according to claim 3, wherein: The two buckle parts are formed by bending the protective attachment inwards.

5. The combined circuit breaker according to claim 4, wherein: The protective attachment is integrally formed with the buckle portion.

6. The combined circuit breaker according to claim 5, wherein: The length of the protection accessory is consistent with the sum of the thicknesses of each of the circuit breaker bodies.

7. The combined circuit breaker according to claim 2, wherein: The material of the protective attachment is metal.

8. The combined circuit breaker according to claim 1, wherein: Each of the wire passing openings has the same shape.

9. The combined circuit breaker according to claim 8, wherein: The wire passing groove is arranged in a rectangular shape.

10. The combined circuit breaker according to any one of claims 1 to 9, wherein: Each circuit breaker body is provided with a first wiring terminal and a second wiring terminal, and the first wiring terminal and the second wiring terminal are connected to form a main circuit.

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