CN110660620A - Circuit breaker with protective structure - Google Patents

Abstract

The invention provides a circuit breaker with a protective structure, which includes a seat plate, two side plates are fixedly welded symmetrically at the top of the seat plate, and a back plate located on the rear side of the two side plates is fixedly connected to the top of the seat plate. The circuit breaker body is embedded in the upper part, and a top plate is slidably fitted between the two side plates relative to the inner wall and above the circuit breaker body. A suspension frame is fixedly connected, and a window mechanism located on the front side of the circuit breaker body is arranged between the side plates. The lower part and the lower part of the window mechanism are respectively in contact with the inner wall of the seat plate and the top plate, and the two sides of the window mechanism are respectively connected with the inner walls of the two side plates. Contact, the circuit breaker adopts a spliced structure, which is convenient for the docking and installation of the protective plate. The top plate and the window mechanism are clipped and installed on the inner wall of the side plate, which is easy to disassemble and install. The seat plate, side plate, top plate, back plate and window mechanism are formed. In a closed space, it can prevent external objects from hitting the circuit breaker.

Description

A circuit breaker with protective structure

technical field

The invention relates to a circuit breaker with a protective structure.

Background technique

A circuit breaker refers to a switching device that can close, carry and break current under normal circuit conditions, and can close, carry and break current under abnormal circuit conditions within a specified time. Attention, the installation of circuit breakers on transmission lines has become an indispensable step. The existence of circuit breakers not only ensures the safety of electricity use, but also improves the safety of life and property of power users.

During the use of traditional circuit breakers, there is no protective structure, and the circuit breaker is directly fixed to the distribution box or directly fixed on the base plate through multiple screws, which is easy to cause external objects to hit the circuit breaker and cause damage to it. Moreover, after long-term use, it is easy to cause mosquitoes or dust to contact the circuit breaker. When mosquitoes fall on the wire joints of the circuit breaker, it is easy to cause a short circuit. Long-term accumulation of dust will also affect the normal use of the circuit breaker, greatly reducing its protective performance. The device needs to be fixed by multiple screws during installation. Due to the small size of the screws, it is inconvenient to operate during fixing, which greatly reduces the convenience of its installation. In this regard, it is necessary to design a protective structure with convenient installation and good protection performance. circuit breaker.

SUMMARY OF THE INVENTION

The present invention improves the above problems, that is, the technical problem to be solved by the present invention is that the traditional circuit breaker is not provided with a protective structure during use, which may easily cause mosquitoes or dust to contact the circuit breaker after long-term use.

The specific embodiment of the present invention is: a circuit breaker with a protective structure, comprising a seat plate, the top of the seat plate is symmetrically fixed and welded with two side plates, and the top of the seat plate is fixedly connected with two side plates located at the top of the seat plate. The back plate on the rear side, the upper part of the seat plate and the position between the two side plates is embedded with the circuit breaker body, and the two side plates are slidably fitted with a top plate between the opposite inner walls and above the circuit breaker body, The side of the top plate close to the back plate is attached to the back plate, the back plate is fixedly connected to the side plate, the rear side of the top plate is fixedly connected with a suspension frame, and there is a window located on the front side of the circuit breaker body between the side plates The lower part and the lower part of the window mechanism are respectively in contact with the inner walls of the seat plate and the top plate, and the two sides of the window mechanism are respectively in contact with the inner walls of the two side plates.

Further, the upper end surface of the seat plate is provided with a concave limit groove, and the bottom of the circuit breaker body is embedded in the limit groove, and the top of the seat plate is drilled with a position corresponding to the window mechanism. A first card slot, and one end of the window mechanism close to the seat plate is engaged with the first card slot.

Further, a third card slot is drilled on the opposite inner walls of the two side plates and at positions corresponding to the top plate, and both sides of the top plate are inserted into the third card grooves on the corresponding side plates. A second card slot is drilled on the opposite inner wall of the side plate and at a position corresponding to the window mechanism, and both ends of the window mechanism close to the side plate are snap-connected with the corresponding second card grooves. .

Further, two wire holes are drilled symmetrically on the back plate at positions corresponding to the circuit breaker body, and a heat dissipation port is drilled on the back plate at a position between the two circuit breaker bodies, and the inner wall of the heat dissipation port is drilled. A dust filter is fixedly installed.

Further, two ends of the top plate close to the side plates are symmetrically and fixedly installed with rubber plates, and both of the rubber plates are snap-connected to correspondingly provided third card grooves.

Further, the hanger and the top plate pass through the top plate and the fastening screws threadedly connected to the hanger. perpendicular to the two side panels.

Further, the window mechanism includes a rubber frame, and one side of the rubber frame close to the two side plates is engaged with the second slot corresponding to the side plate, and the rubber frame is close to the seat plate. One end of the rubber frame is engaged with the first card slot, and a tempered glass plate is fixedly installed on the inner wall of the rubber frame.

Further, a first rubber pad is fixedly bonded to the two side plates relative to the inner wall, and one end of the first rubber pad away from the correspondingly arranged side plate is in close contact with the outer side wall of the circuit breaker body.

Further, a concave handle is excavated at the top of the top plate and away from the back plate, the end of the top plate away from the concave handle is fixedly bonded with a second rubber pad, and the second rubber pad is away from the top plate. Make close contact with the top of the circuit breaker body.

Compared with the prior art, the present invention has the following beneficial effects: the circuit breaker adopts a spliced structure, which is convenient for the butt installation of the protective plate, wherein the top plate and the window mechanism are both clamped and installed on the inner wall of the side plate, which is convenient for disassembly and installation, and the circuit is disconnected. The main body of the device is limited to the inner wall of the side plate, the seat plate and the top plate, and there is no need to use screws to fix it, which greatly improves the convenience of its installation. The circuit breaker places the circuit breaker body in the closed space formed by the seat plate, side plate, top plate, back plate and window mechanism, which can prevent the impact of external objects on the circuit breaker, and is provided with a heat dissipation port to ensure the safety of the circuit breaker body. Heat dissipation, combined with a dust-proof net to prevent mosquitoes or dust from entering, avoid mosquitoes contacting the wire connectors on the circuit breaker and cause its short circuit, and can prevent dust from adhering to the circuit breaker to affect its normal use, greatly improving its protective performance.

Description of drawings

1 is a schematic diagram of the overall structure of a circuit breaker with a protective structure proposed by the present invention;

2 is a schematic structural diagram of a circuit breaker base plate with a protective structure proposed by the present invention;

FIG. 3 is a schematic structural diagram of a circuit breaker backplane with a protective structure proposed by the present invention;

4 is a schematic structural diagram of a side plate of a circuit breaker with a protective structure proposed by the present invention;

5 is a schematic structural diagram of the top plate of a circuit breaker with a protective structure proposed by the present invention;

6 is a schematic structural diagram of a circuit breaker window mechanism with a protective structure proposed by the present invention.

In the figure: seat plate 1, limit slot 11, first slot 12, side plate 2, first rubber pad 21, second slot 22, third slot 23, fastening screw 3, hanger 4, back Plate 5, wire hole 51, heat dissipation port 52, dustproof net 53, top plate 6, recessed handle 61, rubber plate 62, second rubber pad 63, circuit breaker body 7, window mechanism 8, rubber frame 81, tempered Glass plate 82 , limit screw 9 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

1-6, a circuit breaker with a protective structure includes a seat plate 1, two side plates 2 are fixedly welded on the top of the seat plate 1 symmetrically, and the upper surface of the seat plate 1 is located at the top of the side plate 1. The back plate 5 is fixedly installed on the rear side, and the back plate 5 and the two side plates 2 are arranged in a vertical state and connected to each other, the two side plates and the seat plate 1 are vertically arranged, and the top of the seat plate 1 is located at The circuit breaker body 7 is embedded and installed at the position between the side plates 2 , and the top plate 6 is slidably inserted and installed between the two side plates 2 relative to the inner walls and above the circuit breaker body 7 , and the top plate 6 is close to the back plate. 5. The outer side wall of one side is in close contact with the back plate 5, and a limit screw 9 is inserted on the two side plates 2 and the position corresponding to the top plate 6, and the threaded ends of the two limit screws 9 are both. Passing through the correspondingly arranged side plates 2 and screwed with the top plate 6, the outer wall of the side of the back plate 5 away from the circuit breaker body 7 is fixedly mounted with a hanger 4, and the back plate 5 is located on both sides. One side of the plate 2 is symmetrically inserted with two fastening screws 3, and the threaded ends of the two fastening screws 3 pass through the back plate 5 and are threadedly connected with the inner wall of the hanger 4 close to the back plate 5. A window mechanism 8 is installed between the opposite inner walls of the side plate 2 and located on one side of the circuit breaker body 7, and the other two end faces of the window mechanism 8 are in contact with the opposite inner walls of the seat plate 1 and the top plate 6 respectively. , it is convenient to install the device in the distribution box as a whole through the hanging frame 4, and it is fixed by the fastening screws 3 to ensure the firmness after the hanging installation. The closed space formed by the window mechanism 8 can protect the circuit breaker body 7 and prevent external objects from directly hitting the circuit breaker body 7 to cause damage to it, and the circuit breaker body 7 is located in the closed space to prevent mosquitoes or dust from contacting it and prevent mosquitoes from falling. Entering the circuit breaker body 7 and contacting the wire connector to cause a short circuit, preventing dust from adhering to the surface of the circuit breaker body 7 to form accumulated dirt and affecting its service life, greatly improving its protective performance.

Wherein, a limit slot 11 is drilled on the upper surface of the base plate 1 corresponding to the circuit breaker body 7 , and the bottom end of the circuit breaker body 7 is embedded in the limit slot 11 , and the top end of the base plate 1 is A first card slot 12 is drilled at a position corresponding to the window mechanism 8 , and one end of the window mechanism 8 close to the seat plate 1 is engaged with the first card groove 12 , that is, the window mechanism 8 is close to the seat plate 1 . The lower end is inserted into the first card slot 12 .

The circuit breaker body 7 can be limited by the engagement of the limiting slot 11 and the circuit breaker body 7 to ensure that it is firmly installed on the upper end surface of the base plate 1 , and the first locking slot 12 is connected to the window mechanism 8 By engaging and docking, the window mechanism 8 can be firmly connected to the top of the seat plate 1 .

Wherein, a third card slot 23 is drilled on the opposite inner walls of the two side plates 2 and corresponding to the top plate 6 , and both ends of the top plate 6 away from each other are correspondingly provided with the third card slot. 23 is connected by sliding and snapping, a second slot 22 is drilled on the opposite inner walls of the two side plates 2 and corresponding to the window mechanism 8, and the window mechanism 8 is close to both ends of the side plate 2 Both are connected with the corresponding second card slot 22, and the third card slot 23 is connected with the top plate 6, so that the top plate 6 can be inserted and installed between the two side plates 2, and the second card slot 22 The engagement with the window mechanism 8 ensures that the window mechanism 8 is firmly installed between the inner walls of the two side plates 2 .

The above structure uses the bottom of the window mechanism 8 to be snapped into the first card slot 12 and both sides of the window structure to be snapped into the second card slots 22 of the side plates on both sides of the window structure, thereby ensuring that the window structure is stably limited to the seat plate and the two sides. between the side panels.

Wherein, two wire holes 51 are symmetrically drilled on the back plate 5 at positions corresponding to the circuit breaker body 7 , and heat dissipation ports 52 are drilled on the back plate 5 and located between the two circuit breaker bodies 7 . A dustproof net 53 is fixedly installed on the inner wall of the heat dissipation port 52, and the wire connected to the circuit breaker body 7 can pass through the back plate 5 through the wire hole 51, and the dustproof net 53 can prevent dust or mosquitoes from entering the device, avoiding Mosquitoes contacting the wire joints cause the circuit breaker body 7 to short-circuit, and the dustproof net 53 can also ensure the heat dissipation of the circuit breaker body 7 under the effect of dust prevention.

Wherein, two rubber plates 62 are symmetrically and fixedly installed on the two ends of the top plate 6 close to the side plate 2 , and the two rubber plates 62 are snap-connected with the corresponding third card slots 23 . The top plate 6 A recessed handle 61 is excavated at the top of the top and away from the back plate 5. The rubber plate 62 can make the top plate 6 and the third card slot 23 snap more tightly, and improve the firmness of the connection between the top plate 6 and the side plate 2. The top plate 6 can be easily pulled out from the third card slot 23 through the recessed handle 61 to facilitate its installation and disassembly.

Wherein, the window mechanism 8 includes a rubber frame 81, and one end of the rubber frame 81 close to the two side plates 2 is engaged with the correspondingly provided second slot 22, and the rubber frame 81 is close to One end of the seat plate 1 is engaged with the first card slot 12. A tempered glass plate 82 is fixedly installed on the inner wall of the rubber frame body 81. The window mechanism 8 can be connected to the side plate 2 and the seat plate 1 through the rubber frame body 81. It is more compact, and the firmness after installation is improved, and the signal lamp and display screen of the circuit breaker body 7 can be easily observed through the tempered glass plate 82 .

Wherein, a first rubber pad 21 is fixedly bonded to the positions of the two side plates 2 opposite to the inner wall and corresponding to the circuit breaker body 7, and the two first rubber pads 21 are far away from the corresponding side plates. One end of 2 is in close contact with the outer side wall of the circuit breaker body 7, the end of the top plate 6 away from the recessed handle 61 is fixedly bonded with a second rubber pad 63, and the end of the second rubber pad 63 away from the top plate 6 is in contact with it. The top of the circuit breaker body 7 is in close contact, and through the close contact between the first rubber pad 21 and the circuit breaker body 7, the circuit breaker body 7 can be firmly clamped at the position between the inner walls of the side plate 2, and the second rubber pad 63 The close contact with the circuit breaker body 7 enables the circuit breaker body 7 to be firmly clamped at the position between the top plate 6 and the base plate 1 , thereby improving the stability of the circuit breaker body 7 after installation.

Working principle: Specifically, when the present invention is used, first, insert the circuit breaker body 7 into the limit slot 11 to ensure that the circuit breaker body 7 is firmly installed on the top of the base plate 1, and then insert the window mechanism 8 into the two Insert the bottom end of the second card slot 22 into the first card slot 12, and increase the tightness between the window mechanism 8 and the first card slot 12 and the second card slot 22 through the rubber frame 81. When the window mechanism 8 After the installation is completed, insert the top plate 6 into the third slot 23. When one end of the top plate 6 is in contact with the back plate 5, the top plate 6 is fixed between the inner walls of the two side plates 2 by the limit screws 9. At this time The window mechanism 8 can be limited by the top plate 6 to prevent it from disengaging from the first card slot 12 and the second card slot 22, and the circuit breaker body 7 can be firmly secured by the first rubber pad 21 and the second rubber pad 63 It is built in the closed space formed by the seat plate 1, the two side plates 2, the back plate 5, the top plate 6 and the window mechanism 8 to avoid damage to the circuit breaker body 7 caused by the impact of external objects, and the back plate 5 is drilled with wires. The hole 51 is convenient for wiring. The heat dissipation port 52 ensures the heat dissipation of the circuit breaker body 7, and the dustproof net 53 is combined to prevent mosquitoes or dust from entering and contacting the circuit breaker body 7, so as to prevent mosquitoes from contacting the wire joints on the circuit breaker body 7. Short circuit, preventing dust from entering and accumulating on the circuit breaker body 7 for a long time and affecting its performance, greatly improving its protective performance, when the circuit breaker body 7 is fixed, directly install the hanger 4 to the designated installation position, The installation of the circuit breaker can be completed by reinforcing it with one fastening screw 3, without using multiple screws to fix the circuit breaker, and the circuit breaker body 7 does not need to be reinforced with screws when fixing it, which greatly improves the convenience of its installation. sex.

Unless otherwise stated in any of the technical solutions disclosed in the present invention, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred numerical range is only Among the many implementable numerical values, the technical effect is relatively obvious or representative. Since the numerical values are too numerous to be exhaustive, only some numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values shall not constitute a limitation on the protection scope of the present invention.

If words such as "first" and "second" are used herein to define components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of describing components The above terms have no special meaning unless otherwise stated.

At the same time, if the above-mentioned invention discloses or involves parts or structural parts that are fixedly connected to each other, then, unless otherwise stated, fixed connection can be understood as: detachable fixed connection (for example, using bolts or screws), or It is understood as: non-removable fixed connections (such as riveting, welding), of course, the mutual fixed connections can also be replaced by a one-piece structure (for example, integrally formed using a casting process) (except that it is obviously impossible to use the one-piece forming process).

In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in the present disclosure used to represent positional relationships or shapes include states or shapes that are similar to, similar to, or close to.

Any component provided by the present invention may be assembled from a plurality of individual components, or may be a single component manufactured by an integral molding process.

Finally it should be noted that: the above embodiment is only used to illustrate the technical scheme of the present invention and not to limit it; Although the present invention has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand: The specific embodiments of the invention are modified or some technical features are equivalently replaced; without departing from the spirit of the technical solutions of the present invention, all of them should be included in the scope of the technical solutions claimed in the present invention.

Claims (9)

1. The utility model provides a circuit breaker with protective structure, a serial communication port, includes the bedplate, the top symmetry fixed welding of bedplate has two curb plates, bedplate top fixedly connected with is located the backplate of two curb plate rear sides, the upper portion of bedplate and the position embedding that is located between two curb plates have the circuit breaker body, two just be located the top sliding fit of circuit breaker body between the relative inner wall of curb plate has the roof, the roof is close to backplate one side and the laminating of backplate, backplate and curb plate fixed connection, roof rear side fixedly connected with mounted frame, the window body mechanism who is located circuit breaker body front side has between the curb plate, the lower part and the lower part of window body mechanism contact with bedplate and roof inner wall respectively, the both sides of window body mechanism contact with both sides inboard wall respectively.

2. The circuit breaker with a protective structure according to claim 1, wherein the upper end surface of the seat plate is provided with a concave limiting groove, the bottom of the circuit breaker body is embedded into the limiting groove, a first clamping groove is formed in the top end of the seat plate and at a position corresponding to the window mechanism, and one end of the window mechanism close to the seat plate is in clamping butt joint with the first clamping groove.

3. The circuit breaker with the protection structure according to claim 2, wherein a third slot is cut on the inner wall of each of the two opposite side plates corresponding to the top plate, two sides of the top plate are inserted into the third slots on the corresponding side plates, a second slot is cut on the inner wall of each of the two opposite side plates corresponding to the window mechanism, and two ends of the window mechanism close to the side plates are connected with the second slots.

4. The circuit breaker with the protection structure according to claim 1 or 2, wherein two wire holes are symmetrically cut on the back plate at positions corresponding to the circuit breaker bodies, a heat dissipation opening is cut on the back plate at a position between the two circuit breaker bodies, and a dust screen is fixedly mounted on the inner wall of the heat dissipation opening.

5. The circuit breaker with the protection structure according to claim 3, wherein rubber plates are symmetrically and fixedly installed at two ends of the top plate close to the side plates, and the two rubber plates are respectively connected with the correspondingly arranged third clamping grooves in a clamping manner.

6. The circuit breaker with the protection structure according to claim 1 or 2, wherein the suspension bracket and the top plate are connected by a fastening screw penetrating through the top plate and being in threaded connection with the suspension bracket, the side portion of the side plate is provided with a limit screw penetrating through the side plate and the inner end of the side plate abuts against the side portion of the top plate, and the back plate is perpendicular to the two side plates.

7. The circuit breaker with a protective structure according to claim 3, wherein the window mechanism comprises a rubber frame, one side of the rubber frame close to the two side plates is in clamping butt joint with the second clamping grooves of the corresponding side plates, one end of the rubber frame close to the seat plate is in clamping butt joint with the first clamping grooves, and a toughened glass plate is fixedly mounted on the inner wall of the rubber frame.

8. The circuit breaker with the protection structure as claimed in claim 1, wherein the first rubber pads are fixedly bonded to the opposite inner walls of the two side plates, and one ends of the first rubber pads, which are far away from the corresponding side plates, are in close contact with the outer side wall of the circuit breaker body.

9. The circuit breaker with the protection structure as claimed in claim 1, wherein a recessed handle is cut on a top end of the top plate and a side away from the back plate, a second rubber pad is fixedly bonded to an end of the top plate away from the recessed handle, and an end of the second rubber pad away from the top plate is in close contact with a top end of the circuit breaker body.

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