Protective cover for circuit breaker and circuit breaker

Abstract

The utility model relates to the technical field of circuit breakers, and discloses a protective cover for a circuit breaker and the circuit breaker, the protective cover comprises a main cover body, an auxiliary cover body and a connecting cover body, the main cover body is used for sleeving a wiring terminal of the circuit breaker; the auxiliary cover body is used for sleeving an insulator of the circuit breaker; the connecting cover body is connected to the main cover body and the auxiliary cover body and used for being arranged at the joint of the insulator and the wiring terminal in a sleeving mode. The main cover body is sleeved outside the wiring terminal, so that the wiring terminal can be protected, rain, snow, dust and the like are effectively prevented from entering the wiring terminal, and the normal work of the wiring terminal is ensured; the main cover body plays an electrical isolation role on the wiring terminal, so that an external object can be prevented from accidentally contacting the wiring terminal, and short circuit or electrical fault can be avoided; through the auxiliary cover body and the connecting cover body, an insulation protection effect can be achieved, and external rain and snow or dust can be prevented from entering the wiring terminal through the joint of the insulator and the wiring terminal.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit breaker, in particular, relate to a protective cover for circuit breaker and circuit breaker. BACKGROUND

[0002] Circuit breaker (or called high voltage switch) can not only cut off or close the no-load current and load current in high voltage circuit, but also cut off over-load current and short circuit current through the action of relay protection device when system fault occurs, it has quite perfect arc extinguishing structure and enough breaking capacity.

[0003] Circuit breaker plays a control role in high voltage circuit, and is one of important electrical components in high voltage circuit. Circuit breaker is used to turn on or turn off circuit in normal operation, and rapidly turn off circuit under the action of relay protection device in fault condition, and reliably turn on short circuit current in special condition (such as automatic reclosing to fault line). High voltage circuit breaker is a special electrical appliance for turning on or turning off high voltage circuit in normal or fault condition.

[0004] Circuit breaker is generally arranged outdoors, and the wiring terminal of circuit breaker is generally exposed, which is not only easy to be attacked by rain and snow, but also has the risk of short circuit. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a protective cover for circuit breaker, which can protect the wiring terminal of circuit breaker and reduce the risk of short circuit.

[0006] Other characteristics and advantages of the utility model will become apparent from the following detailed description, or will be learned partly by practice of the utility model.

[0007] The utility model provides a protective cover for circuit breaker, which can protect the wiring terminal of circuit breaker and reduce the risk of short circuit.

[0008] Main cover body, for being sleeved on the outside of the wiring terminal of the circuit breaker;

[0009] Auxiliary cover body, for being sleeved on the outside of the insulator of the circuit breaker;

[0010] Connecting cover body, connected to the main cover body and the auxiliary cover body, and used for being sleeved on the connecting place of the insulator and the wiring terminal.

[0011] The main cover body is sleeved outside the terminal, can protect the terminal, effectively prevent rain, snow, dust and the like from entering the terminal, and ensure normal work of the terminal; the main cover body electrically isolates the terminal, can prevent external objects (such as tools, sundries and the like) from accidentally contacting the terminal, and avoid causing short circuit or electrical failure; the auxiliary cover body is sleeved outside the insulator, and the connecting cover body connecting the main cover body and the auxiliary cover body is sleeved at a connecting position of the insulator and the terminal, can play an insulation protection role, and prevent external rain, snow or dust from entering the terminal through the connecting position of the insulator and the terminal.

[0012] In an embodiment of the utility model, the main cover body includes a main body part and an extension part connected to each other, and the extension part is connected to the connecting cover body; a first gap is formed between the main body part and the extension part.

[0013] In an embodiment of the utility model, the main body part is a cylinder, and a second gap is arranged on the cylinder and penetrates the cylinder along the center line direction of the protective cover.

[0014] In an embodiment of the utility model, the cylinder is provided with two pull rings, and the two pull rings are arranged on two sides of the second gap.

[0015] In an embodiment of the utility model, the extension part is arc-shaped, and a first opening is arranged on one side of the extension part close to the first gap.

[0016] In an embodiment of the utility model, the connecting cover body is provided with a binding wall, the binding wall is used for limiting movement of the connecting position of the insulator and the terminal; the binding wall is arc-shaped, and the curvature of the binding wall is greater than the curvature of the cylinder.

[0017] In an embodiment of the utility model, the binding wall is provided with an extension wall on two sides in the bending direction of the binding wall, a second opening is formed between the two extension walls, and the second opening corresponds to the second gap.

[0018] In an embodiment of the utility model, the auxiliary cover body includes a bottom plate and a side wall, the bottom plate is connected to an end of the connecting cover body, the side wall is arranged around the periphery of the bottom plate, and the bottom plate and the side wall define a mounting space of the insulator.

[0019] In an embodiment of the utility model, the side wall is provided with a third opening.

[0020] The utility model discloses a second aspect embodiment provides a kind of circuit breaker, the circuit breaker includes circuit breaker main body, insulator, terminal and the protective cover of the circuit breaker of any one of above first aspect embodiment;The insulator is connected in the circuit breaker main body with the terminal, the main cover body is set in the external of the terminal of the circuit breaker, the sub-cover body is set in the external of the insulator of the circuit breaker, the connecting cover body is set in the connecting place of the insulator with the terminal.

[0021] It should be understood that the above general description and subsequent detailed description are exemplary and explanatory only and are not restrictive of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and serve to explain the principles of the utility model. It is apparent that the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art. In the drawings:

[0023] Figure 1 It is the overall structural drawing of protective cover for circuit breaker shown according to the utility model embodiment;

[0024] Figure 2 It is the overall structural drawing of protective cover for circuit breaker shown according to the utility model embodiment;

[0025] Figure 3 It is the overall structural drawing of protective cover for circuit breaker shown according to the utility model embodiment;

[0026] Figure 4 It is the structural schematic diagram of insulator and terminal in existing circuit breaker.

[0027] REFERENCE NUMERALS

[0028] 100, main cover body;110, main body part;111, second gap;112, pull ring;120, extension;121, first opening;130, first gap;

[0029] 200, sub-cover body;210, bottom plate;220, side wall;221, third opening;230, mounting space;

[0030] 300, connecting cover body;310, tight wall;320, extension wall;330, second opening;

[0031] 410, terminal;420, insulator;430, the connecting place of insulator and terminal. DETAILED DESCRIPTION

[0032] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the example implementations to those skilled in the art.

[0033] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the claimed subject matter. One skilled in the relevant art will recognize, however, that the implementations can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, devices, and so forth have not been shown or described in detail to avoid obscuring aspects of the claimed subject matter.

[0034] It should be noted that: the "multiple" mentioned in this paper refers to two or more than two. The association relationship of the associated object is described as "and / or", which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after are a "or" relationship.

[0035] In order to more fully understand the technical content of the present application, the technical scheme of the present application will be further introduced and explained below in combination with specific embodiments, but not limited to this.

[0036] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0037] It should be understood that when used in the specification and the appended claims, the terms "comprise" and "include" indicate the presence of described features, whole, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, whole, steps, operations, elements, components, and / or sets thereof.

[0038] It should also be understood that the term "and / or" used in the specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0039] The wiring terminal of the circuit breaker is a key part of the circuit breaker for carrying current and voltage. Generally, the circuit breaker is arranged outdoors, so that the wiring terminal is exposed, which is vulnerable to rain and snow and has the risk of short circuit.

[0040] The implementation details of the technical solutions of the embodiments of the utility model will be described in detail below.

[0041] The first aspect of the utility model, as shown in Figure 1 and Figure 4 , a protective cover for a circuit breaker is provided, the protective cover comprises a main cover body 100, a secondary cover body 200 and a connecting cover body 300, the main cover body 100 is used for being sleeved outside the wiring terminal 410 of the circuit breaker; the secondary cover body 200 is used for being sleeved outside the insulator 420 of the circuit breaker; the connecting cover body 300 is connected to the main cover body 100 and the secondary cover body 200, and is used for being sleeved at the connecting position 430 of the insulator 420 and the wiring terminal 410.

[0042] The main cover body 100 is sleeved outside the wiring terminal 410, which can protect the wiring terminal 410, effectively prevent rain, snow, dust and the like from entering the wiring terminal 410, and ensure the normal work of the wiring terminal 410; the main cover body 100 plays an electrical isolation role on the wiring terminal 410, which can prevent external objects (such as tools, sundries and the like) from accidentally contacting the wiring terminal 410, and avoid causing short circuit or electrical failure; by sleeving the secondary cover body 200 outside the insulator 420 and sleeving the connecting cover body 300 connected to the main cover body 100 and the secondary cover body 200 at the connecting position 430 of the insulator 420 and the wiring terminal 410, an insulation protection role can be played, which prevents external rain, snow or dust from entering the wiring terminal 410 through the connecting position 430 of the insulator 420 and the wiring terminal 410.

[0043] The main cover body 100 plays a protection role on the wiring terminal 410, and the secondary cover body 200 and the connecting cover body 300 play a further insulation protection role, which avoids the connecting position 430 of the wiring terminal 410 and the insulator 420 from being exposed to cause water immersion or short circuit, and improves the safety performance of the circuit breaker.

[0044] Generally, the protective cover is made of silica gel or rubber material, of course, in other embodiments, the protective cover can also be made of other materials for waterproof insulation. The wiring terminal 410 and the insulator 420 are located on the same straight line, and correspondingly, the main cover body 100, the secondary cover body 200 and the connecting cover body 300 are located on the same straight line, which facilitates the installation of the protective cover.

[0045] In some embodiments, as shown in Figure 2 and Figure 4As shown, the main cover body 100 comprises a main body part 110 and an extension part 120 connected to each other, and the extension part 120 is connected to the connecting cover body 300; a first gap 130 is formed between the main body part 110 and the extension part 120, the main body part 110 is used to wrap the main body of the terminal 410, and the extension part 120 is used to wrap the end part of the terminal 410; through the first gap 130, the main body part 110 and the extension part 120 can be more conveniently bent, and the installation of the protective cover on the disconnector is facilitated. The first gap 130 surrounds the circumferential side of the protective cover, and the length of the first gap 130 is greater than half of the circumference of the protective cover, so that the bending between the main body part 110 and the extension part 120 is more flexible.

[0046] In some embodiments, as shown in Figure 2 and Figure 4 The main body part 110 is a cylinder, which can better wrap the terminal 410 and prevent rain, snow or dust from entering the terminal 410 from the side of the terminal 410; the cylinder is provided with a second gap 111 which penetrates the cylinder along the center line direction of the protective cover; through the second gap 111, the cylinder can be opened, and the main body part 110 can be conveniently wrapped outside the terminal 410 from the side of the terminal 410.

[0047] In some embodiments, as shown in Figure 3 and Figure 4 The cylinder is provided with two pull rings 112 which are arranged on the two sides of the second gap 111, and by pulling the two pull rings 112 in opposite directions, the width of the second gap 111 is increased, so that the terminal 410 can enter the inside of the main body part 110 through the second gap 111, and the main body part 110 is realized to be sleeved outside the terminal 410; when the pull ring 112 is loosened, the second gap 111 restores the original width, and the main body part 110 restores. In actual operation, the two pull rings 112 can be pulled in opposite directions by a tool. In the restored state of the main body part 110, the width of the second gap 111 is smaller than the diameter of the terminal 410, so that the terminal 410 can be limited in the main body part 110.

[0048] In some embodiments, as shown in Figure 3 and Figure 4As shown, the extension 120 is arc-shaped, which facilitates the extension 120 to wrap around the end of the terminal 410; the extension 120 is provided with a first opening 121, through which the extension 120 can be directly sleeved on the end of the terminal 410 from the side of the terminal 410, facilitating installation. The first opening 121 is provided on the side of the extension 120 close to the second gap 111, so that the terminal 410 can enter the main cover 100 from the same direction. It should be noted that the width of the first opening 121 is greater than the width of the terminal 410, so that the terminal 410 can enter the extension 120 from the first opening 121.

[0049] In some embodiments, as shown in Figure 3 and Figure 4 The connecting cover 300 is provided with a binding wall 310 for limiting the movement of the connecting portion 430 of the terminal 410 and the insulator 420; the binding wall 310 is arc-shaped to adapt to the shape of the connecting portion 430 of the terminal 410 and the insulator 420; generally, the size of the connecting portion 430 of the terminal 410 and the insulator 420 is smaller than that of the terminal 410, so the curvature of the binding wall 310 is greater than that of the barrel, so that the binding wall 310 can tightly fit on the connecting portion 430 of the terminal 410 and the insulator 420, that is, the binding wall 310 is closer to the center line of the protective cover relative to the main cover 100, so that the binding wall 310 can limit the movement of the connecting portion 430 of the terminal 410 and the insulator 420.

[0050] In some embodiments, as shown in Figure 3 and Figure 4 The binding wall 310 is provided with an extension wall 320 on both sides of the bending direction, and the second opening 330 is formed between the two extension walls 320, through which the connecting portion 430 of the terminal 410 and the insulator 420 enters the connecting cover 300, and the second opening 330 corresponds to the second gap 111, so that the connecting portion 430 of the terminal 410 and the insulator 420 and the terminal 410 can enter the main cover 100 and the connecting cover 300 from the same direction, respectively. It should be noted that the width of the second opening 330 is greater than the width of the connecting portion 430 of the terminal 410 and the insulator 420, so that the connecting portion 430 of the terminal 410 and the insulator 420 can enter the connecting cover 300 from the second opening 330.

[0051] In some embodiments, as shown in Figure 3 and Figure 4As shown, the auxiliary cover body 200 includes a bottom plate 210 connected to the end of the connecting cover body 300 and a side wall 220 surrounding the periphery of the bottom plate 210, and the bottom plate 210 and the side wall 220 define a mounting space 230 of the insulator 420; it can be understood that part of the insulator 420 is located inside the mounting space 230, and through the auxiliary cover body 200, the insulator 420 connected with the terminal can be isolated and protected, further preventing the rain and snow from flowing to the terminal through the insulator 420 to cause a short circuit.

[0052] In some embodiments, as shown in Figure 3 and Figure 4 As shown, the side wall 220 is provided with a third opening 221, and the insulator 420 can enter the auxiliary cover body 200 through the third opening 221, and the third opening 221 corresponds to the second gap 111, so that the terminal 410 and the insulator 420 can enter the main cover body 100 and the auxiliary cover body 200 from the same direction. It should be noted that the width of the third opening 221 is greater than the width of the insulator 420, so that the insulator 420 can enter the auxiliary cover body 200 from the third opening 221.

[0053] As shown in Figure 3 and Figure 4 The edges of the first gap 130, the second gap 111, the first opening 121, the second opening 330, and the third opening 221 are all designed as circular arcs, which can prevent scratching the user.

[0054] The second aspect of the utility model provides a circuit breaker, as shown in Figure 3 and Figure 4 The circuit breaker includes a circuit breaker body, an insulator 420, a terminal 410, and a protective cover for the circuit breaker of the first aspect of the embodiment; the insulator 420 is connected to the circuit breaker body and the terminal 410, the main cover body 100 is sleeved outside the terminal 410 of the circuit breaker, the auxiliary cover body 200 is sleeved outside the insulator 420 of the circuit breaker, and the connecting cover body 300 is sleeved at the connection 430 of the insulator 420 and the terminal 410.

[0055] It can be understood that the protective cover for the circuit breaker has the beneficial effects of the above-mentioned embodiments, and the circuit breaker accordingly has the beneficial effects of the above-mentioned embodiments, and the specific implementation can refer to the above-mentioned embodiments, which will not be described herein.

[0056] It should be understood that the utility model is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the utility model is only limited by the appended claims.

[0057] It has to be noted that, in the present document, relational terms are intended only to convey a possible relationship between entities or between a process and an entity without necessarily implying a causal relationship or a requirement for one to exist. Also, the terms "comprises", "comprising", "includes", "including", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or even include additional elements inherent to such process, method, article, or apparatus. Without limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0058] The foregoing is merely illustrative of the principles of the application and various modifications can be made by those skilled in the art without departing from the spirit and scope of the application. The above embodiments are illustrative of the only principles of the application and various modifications can be made by those skilled in the art without departing from the spirit and scope of the application. The present application commends the widest scope and therefore is not to be limited to the above described embodiments but is to cover each and every variation falling within the scope of the present application.

Claims

1. A protective cover for a circuit breaker, characterized by, The protective cover for circuit breaker comprises a main cover body, a sub-cover body, and a connecting cover body. The main cover body comprises a main body part and an extension part connected to each other, and a first gap is formed between the main body part and the extension part. The main body part is a cylinder provided with a second gap penetrating the cylinder along the center line of the protective cover. The cylinder is provided with two pull rings arranged on both sides of the second gap.

2. The protective cover for a circuit breaker of claim 1, wherein, The extension part is arc-shaped, and a first opening is arranged on the side of the extension part close to the second gap.

3. The protective cover for a circuit breaker of claim 2, wherein, The connecting cover body is provided with a binding wall for limiting the movement of the connecting part of the insulator and the terminal.

4. The protective cover for a circuit breaker of claim 3, wherein, The binding wall is arc-shaped, and the curvature of the binding wall is greater than that of the cylinder.

5. The protective cover for a circuit breaker of claim 3, wherein, The binding wall is provided with extension walls on both sides of the bending direction, and a second opening is formed between the two extension walls.

6. The protective cover for a circuit breaker of claim 3, wherein, The second opening corresponds to the second gap.

7. The protective cover for a circuit breaker of claim 6, wherein, The sub-cover body comprises a bottom plate and a side wall.

8. The protective cover for a circuit breaker according to any one of claims 1 to 7, characterized in that The bottom plate is connected to the end of the connecting cover body, and the side wall is arranged around the periphery of the bottom plate.

9. The protective cover for a circuit breaker of claim 8, wherein, The bottom plate and the side wall define a mounting space for the insulator.

10. A circuit breaker characterized by, The side wall is provided with a third opening. The protective cover for circuit breaker comprises a main cover body, a sub-cover body, and a connecting cover body. The main cover body is arranged outside the terminal of the circuit breaker. The sub-cover body is arranged outside the insulator of the circuit breaker. The connecting cover body is arranged at the connecting part of the insulator and the terminal.

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