CN219979483U - Plastic case circuit breaker - Google Patents

Abstract

The utility model discloses a molded case circuit breaker, which comprises a shell, a wiring terminal and a power supply, wherein the wiring terminal is arranged in the shell; the binding post includes the gliding grip sleeve in the inside of casing, the one end of grip sleeve pass through the spring with the inside fixing base that is equipped with of casing is connected, just the other end of grip sleeve is connected with the push rod that is equipped with. The clamping sleeve is driven to slide in the shell by the spring to clamp and fix the lead, and the clamping sleeve is driven to be separated from the electrode plate by the push rod to facilitate the disassembly of the lead; one end of the push rod, which is far away from the clamping sleeve, is exposed outside the shell, and a user can clearly know that the clamping sleeve and the electrode plate are in a clamping state, so that the problem that the working position of the clamping sleeve is difficult to determine due to the fact that the clamping sleeve is driven to slide by utilizing a bolt in the existing equipment is solved. According to the utility model, the structure of the existing wiring terminal is optimized, so that the equipment can be used for clamping and fixing the lead and simultaneously knowing the working position of the clamping sleeve in real time.

Description

Plastic case circuit breaker

Technical Field

The utility model relates to the technical field of electrical switches, in particular to a molded case circuit breaker.

Background

The wiring terminal of the existing molded case circuit breaker usually adopts bolts to promote the clamping sleeve to slide outside the electrode slice, so as to clamp and fix the lead; for example, the patent number is: CN104934267B, CN114582677A, CN115223824a, etc.; although the above scheme can realize the fixation and clamping of the lead, when the lead is assembled, the user can hardly know whether the clamping sleeve and the electrode plate are in an open state or not because the screw penetrates into the shell, and the lead can be inserted between the electrode plate and the clamping sleeve only by continuous attempts of the user; therefore, the installation efficiency of the lead is reduced, in addition, the disassembly or fixation of the lead requires the rotation of a screwdriver, so that the clamping force of the lead between the clamping sleeve and the electrode plate is uncontrollable, and the phenomenon of unstable clamping or excessive clamping often occurs.

Disclosure of Invention

The utility model aims to provide a molded case circuit breaker so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a molded case circuit breaker comprises a shell, a wiring terminal and an electrode plate, wherein the wiring terminal and the electrode plate are arranged in the shell; the binding post includes the inside gliding grip sleeve of casing, the one end of grip sleeve through the spring that is equipped with the inside fixing base that is equipped with of casing is connected, just the other end of grip sleeve is connected with the push rod that is equipped with.

As a preferable technical scheme of the utility model: the clamping sleeve faces the positioning hole formed in one surface of the spring.

As a preferable technical scheme of the utility model: the clamping sleeve is provided with an internal threaded hole facing one end of the push rod, and the internal threaded hole is connected with an external threaded column arranged on the push rod in an adaptive manner.

As a preferable technical scheme of the utility model: and the side of the clamping sleeve facing the electrode plate is also provided with anti-skid patterns.

As a preferable technical scheme of the utility model: the clamping sleeve and the push rod are made of plastic.

By adopting the technical scheme, the utility model has the beneficial effects that: 1. the clamping sleeve is enabled to slide in the shell by the aid of the springs, the clamping sleeve can be in contact with the electrode plate arranged in the shell, clamping and fixing of the lead are achieved, meanwhile the clamping sleeve is enabled to be separated from the electrode plate by the aid of the push rod, the lead is convenient to disassemble, and particularly when the clamping sleeve and the electrode plate are in a clamping state, one end, far away from the clamping sleeve, of the push rod is exposed out of the shell, a user can clearly know that the clamping sleeve is in a clamping state with the electrode plate, and the problem that the working position of the clamping sleeve is difficult to determine due to the fact that the clamping sleeve is enabled to slide by the aid of the bolts in existing equipment is solved.

2. Through optimizing binding post's structure, so make this equipment still can know the working position of clamping sleeve in real time when possessing centre gripping and fixed wire, especially, utilize the elasticity of spring to promote clamping sleeve and electrode slice to fix the wire, so make the clamping dynamics of wire invariable, thoroughly solve the wire and appear not hard up or by the problem of excessive centre gripping.

3. Although this technical scheme is comparatively simple, but just because of simple structure not only does not cause the rising of circuit breaker processing cost, but also can not change the overall structure of current circuit breaker, especially, only need promote the push rod when using can realize the separation of grip sleeve and electrode slice, loosen the push rod and can realize the closure of grip sleeve and electrode slice, so make this equipment simple convenient again when using, promote the packaging efficiency of wire.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present utility model;

FIG. 2 is a schematic diagram of an exploded structure of a terminal and an electrode pad of the present utility model;

fig. 3 is a schematic main structure of the clamping sleeve of the present utility model.

In the figure: 1. a housing; 2. a fixing seat; 3. a spring; 4. a clamping sleeve; 5. a push rod; 6. a connection terminal; 7. an electrode sheet; 8. an external threaded column; 9. positioning holes; 10. an internal threaded hole; 11. anti-skid lines.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "upper surface", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-3, an embodiment of the present utility model is provided: a molded case circuit breaker includes a case 1, a connection terminal 6 and an electrode sheet 7 mounted inside the case 1; binding post 6 is including the inside gliding grip housing 4 of casing 1, the one end of grip housing 4 through the spring 3 that is equipped with the inside fixing base 2 that is equipped with of casing 1, just the other end of grip housing 4 is connected with the push rod 5 that is equipped with.

In summary, because the spring 3 is used to urge the clamping sleeve 4 to slide inside the housing 1, so that the clamping sleeve 4 can contact with the electrode plate 7 arranged inside the housing 1, and then the clamping and fixing of the wire are completed, meanwhile, the push rod 5 is used to urge the clamping sleeve 4 to separate from the electrode plate 7, so that the wire is convenient to disassemble, in particular, when the clamping sleeve 4 and the electrode plate 7 are in a clamping state, one end of the push rod 5, which is far away from the clamping sleeve 4, is exposed outside the housing 1, so that a user can clearly understand that the clamping sleeve 4 and the electrode plate 7 are in a clamping state, and the problem that the working position of the clamping sleeve is difficult to determine due to the fact that the clamping sleeve is urged to slide by using a bolt in the existing equipment is solved.

Further, through optimizing the structure of binding post 6, so make this equipment still can know the working position of grip sleeve 4 in real time when possessing centre gripping and fixed wire, especially, utilize the elasticity of spring 3 to impel grip sleeve 4 and electrode slice 7 to fix the wire, so make the clamping strength of wire invariable, thoroughly solve the wire and appear becoming flexible or by the problem of excessive centre gripping.

Furthermore, although the technical scheme is simpler, the processing cost of the circuit breaker is not increased due to the simple structure, the integral structure of the existing circuit breaker is not changed, and particularly, the clamping sleeve 4 and the electrode sheet 7 can be separated only by pushing the push rod 5 when the circuit breaker is used, and the clamping sleeve 4 and the electrode sheet 7 can be closed by loosening the push rod 5, so that the circuit breaker is simple and convenient when the circuit breaker is used, and the assembly efficiency of a lead is improved.

On the basis of the scheme, as the clamping sleeve 4 faces the positioning hole 9 arranged on one surface of the spring 3, the mutual matching of the fixing seat 2 and the positioning hole 9 can be utilized to ensure that the spring 3 stretches or shortens along the axial direction of the spring 3 so as to improve the stability of the spring 3 during working.

Further, because the clamping sleeve 4 is provided with the internal thread hole 10 facing one end of the push rod 5, and the internal thread hole 10 is connected with the external thread column 8 arranged on the push rod 5 in a matched manner, the push rod 5 is convenient to disassemble and assemble, and the push rod 5 and the clamping sleeve 4 can be reliably connected together after assembly, so that the reliability of the device in use is further guaranteed, and meanwhile, after the push rod 5 is damaged, the clamping sleeve 4 is directly pushed by a screwdriver, so that the device can clamp or loosen a wire equally.

Furthermore, since the side of the clamping sleeve 4 facing the electrode plate 7 is further provided with the anti-slip patterns 11, the wire can be further positioned between the clamping sleeve 4 and the electrode plate 7 after being clamped.

On the basis of the scheme, the clamping sleeve 4 and the electrode plate 7 are matched by the spring 3 to clamp the lead, so that the clamping sleeve 4 and the push rod 5 can be made of plastic materials, and the insulating capability of the equipment can be improved and electric shock accidents can be effectively avoided due to the adoption of the plastic materials, and particularly, the production cost of the clamping sleeve 4 and the push rod 5 can be reduced; specifically, the shell is made of steel plastic or plastic which is the same as the shell 1.

The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.

Claims (5)

1. A moulded case circuit breaker, its characterized in that: comprises a shell (1), a wiring terminal (6) and an electrode sheet (7) which are arranged inside the shell (1);

binding post (6) are in including inside gliding grip housing (4) of casing (1), the one end of grip housing (4) through spring (3) that are equipped with fixing base (2) that casing (1) inside was equipped with, just the other end of grip housing (4) is connected with push rod (5) that are equipped with.

2. A molded case circuit breaker according to claim 1, wherein: the clamping sleeve (4) faces a positioning hole (9) arranged on one surface of the spring (3).

3. A molded case circuit breaker according to claim 1 or 2, characterized in that: the clamping sleeve (4) is provided with an internal threaded hole (10) at one end facing the push rod (5), and the internal threaded hole (10) is connected with an external threaded column (8) arranged on the push rod (5) in a matching way.

4. A molded case circuit breaker according to claim 3, wherein: the surface of the clamping sleeve (4) facing the electrode sheet (7) is also provided with anti-skid patterns (11).

5. A molded case circuit breaker according to claim 4, wherein: the clamping sleeve (4) and the push rod (5) are made of plastic.