CN213816015U

CN213816015U - Shell structure of plastic shell type circuit breaker

Info

Publication number: CN213816015U
Application number: CN202023218943.1U
Authority: CN
Inventors: 周亚; 王宗丰
Original assignee: Zhejiang Xihai Electric Co ltd
Current assignee: Zhejiang Xihai Electric Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-07-27
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a shell structure of plastic casing type circuit breaker, comprising a base plate, the front of bottom plate is by both sides upper end being provided with two sets of spouts, the inside of spout is provided with the slider, the front of slider is provided with the back casing, the front of back casing is provided with the front casing, the front of front casing is provided with the switch in the middle, the top of front casing is by rear end both sides and middle part be provided with three sets of wire releasing holes, one side of front casing is provided with the vent in the middle, the vent inner wall is by outside front and back end being provided with two sets of fixed slides, the inside of fixed slide is provided with the dust guard, the vent inner wall is by inboard being provided with ventilative layer, the front and back end that runs through the bottom plate is by four corners and is provided with four sets of through-holes; a shell structure of plastic casing formula circuit breaker for the circuit breaker has better heat dispersion, can not damage because of overheated, conveniently installs and dismantles the circuit breaker, and installs enough stably.

Description

Shell structure of plastic shell type circuit breaker

Technical Field

The utility model relates to a shell structure field, in particular to shell structure of plastic casing formula circuit breaker.

Background

The plastic case type circuit breaker is called as a molded case circuit breaker for short and is also called as a device type circuit breaker, all parts are arranged in the plastic case, and the case structure of the plastic case type circuit breaker presents a diversified trend due to different environments in which the circuit breaker is applied;

however, the existing case structure of the plastic case type circuit breaker has certain disadvantages to be improved when in use, and the existing case structure of the plastic case type circuit breaker is not good in heat dissipation performance and is easy to damage due to overheating when in use; the shell structure of current plastic casing formula circuit breaker is inconvenient when using to install and dismantle the circuit breaker, and the installation is stable inadequately, has brought certain influence for in-service use.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a shell structure of a plastic shell type circuit breaker, which can effectively solve the problems of the prior shell structure of the plastic shell type circuit breaker in the background art that the heat dissipation performance is not good and the damage is easy to be caused by overheating when in use; the shell structure of current plastic casing formula circuit breaker is inconvenient when using installs and dismantles the circuit breaker, and installs the not stable problem inadequately.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a shell structure of a plastic shell type circuit breaker comprises a bottom plate, wherein two groups of sliding grooves are formed in the front surface of the bottom plate by the upper ends of two sides, a sliding block is arranged in each sliding groove, a rear shell is arranged on the front surface of the sliding block, a front shell is arranged on the front surface of the rear shell, four groups of fixing bolts are arranged on the front surface of the front shell by the upper ends and the lower ends of the two sides, a switch is arranged in the middle of the front shell, three groups of wire placing holes are formed in the top of the front shell by the two sides and the middle of the rear end, three groups of fastening screws are arranged in the front surface of the front shell by the two sides and the middle of the top, a vent is arranged in the middle of one side of the front shell, two groups of fixing slideways are arranged at the front end and the rear end of the inner wall of the vent by the outer side, a dustproof door is arranged in the middle of one side of the bottom end of the dustproof door, and a ventilating layer is arranged on the inner side of the inner wall of the vent, four groups of through holes are arranged near four corners of the front end and the rear end which penetrate through the bottom plate.

As a further aspect of the utility model, the bottom plate is the rectangle setting, bottom plate and back casing swing joint, back casing and procapsid fixed connection.

As a further aspect of the present invention, the vent is rectangular, the first half of the vent is closed, and the lower half of the vent is open.

As a further aspect of the utility model, fixed slide uses with the dustproof door is supporting, fixed slide and dustproof door swing joint, and the height that highly equals the vent and is open portion of dustproof door.

As a further proposal of the utility model, the ventilating layer is internally provided with a dust screen, and is arranged in a square shape and fixedly connected with the ventilation opening.

As a further scheme of the utility model, the slider is the setting of T style of calligraphy, and the slider uses with the spout is supporting, slider and spout swing joint.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a set up vent, fixed slide, dustproof door and ventilative layer, when needing to use the circuit breaker, earlier through the handle with dustproof door in fixed slide upwards the slide, until the top of dustproof door and the inner wall top of vent are laminated mutually, close the switch again, make the circuit breaker work, the heat that the circuit breaker during operation distributed is discharged through ventilative layer, when not using the circuit breaker for a long time, pull dustproof door to the bottommost can, make the circuit breaker have better heat dispersion, can not damage because of overheated;

through setting up back casing, bottom plate, slider and spout, when needs are installed the circuit breaker, fix the assigned position with the bottom plate through the through-hole earlier, then with the back casing through the slider on it install in the spout for circuit breaker monolithic stationary is on the bottom plate, when needs change the circuit breaker, with the whole upwards promotion of circuit breaker, slider cooperation spout can be with the whole taking off of circuit breaker, conveniently installs and dismantles the circuit breaker, and the installation is enough stable.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a housing structure of a plastic housing type circuit breaker according to the present invention;

fig. 2 is a right side sectional view of a bottom plate and a rear case of a case structure of a plastic case type circuit breaker according to the present invention;

fig. 3 is a schematic diagram of the overall structure of the rear housing of the housing structure of the plastic case type circuit breaker according to the present invention;

fig. 4 is a schematic diagram of the overall structure of the bottom plate of the housing structure of the plastic case type circuit breaker of the present invention.

In the figure: 1. a base plate; 2. a rear housing; 3. a front housing; 4. fixing the bolt; 5. a switch; 6. a wire releasing hole; 7. fastening screws; 8. a vent; 9. fixing the slideway; 10. a dust-proof door; 11. a handle; 12. a breathable layer; 13. a slider; 14. a chute; 15. and a through hole.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-4, a housing structure of a plastic case type circuit breaker comprises a bottom plate 1, two sets of sliding grooves 14 are arranged at the upper ends of the front surface of the bottom plate 1 near both sides, a sliding block 13 is arranged inside the sliding grooves 14, a rear housing 2 is arranged at the front surface of the sliding block 13, a front housing 3 is arranged at the front surface of the rear housing 2, four sets of fixing bolts 4 are arranged at the upper and lower ends of the front surface of the front housing 3 near both sides, a switch 5 is arranged in the center of the front surface of the front housing 3, three sets of wire placing holes 6 are arranged at the two sides and the middle part of the top surface of the front housing 3 near the rear end, three sets of fastening screws 7 are arranged at the two sides and the middle part of the front housing 3, a vent 8 is arranged in the center of one side of the front housing 3, two sets of fixing slideways 9 are arranged at the front and rear ends of the inner wall of the vent 8 near the outer side, a dust-proof door 10 is arranged in the center at the bottom end of the fixing slideways 9, the inner wall of the ventilation opening 8 is provided with a ventilation layer 12 near the inner side, and four groups of through holes 15 are arranged near four corners of the front end and the rear end of the through bottom plate 1.

Bottom plate 1 is the rectangle setting,

bottom plate

1 and 2 swing joint of back casing, and

back casing

2 and 3 fixed connection of procapsid guarantee the stability of circuit breaker during operation.

The vent 8 is the rectangle setting, and the first half of vent 8 is the closed setting, and the lower half of vent 8 is open setting.

Fixed slide 9 uses with dustproof door 10 is supporting, fixed slide 9 and dustproof door 10 swing joint, and the height of dustproof door 10 equals the height that vent 8 is open portion, guarantees that dustproof door 10 can seal vent 8.

Ventilative layer 12 is interior to contain the dust screen, and ventilative layer 12 is square setting, and ventilative layer 12 and vent 8 fixed connection prevent that the dust from getting into inside the circuit breaker.

Slider 13 is T style of calligraphy setting, and slider 13 uses with spout 14 is supporting, and slider 13 and spout 14 swing joint make things convenient for the installation and the dismantlement of circuit breaker.

It should be noted that, the utility model relates to a shell structure of plastic casing type circuit breaker, when using, at first fix bottom plate 1 to the assigned position through-hole 15, then install back shell 2 in spout 14 through slider 13 above it, make the circuit breaker fix on bottom plate 1 as a whole, put the wire into put the line hole 6, fix the wire to the circuit breaker through fastening screw 7, slide dust-proof door 10 upwards in fixed slideway 9 through handle 11, until the top of dust-proof door 10 and the inner wall top of vent 8 are laminated, close switch 5 again, make the circuit breaker work, the heat that the circuit breaker wore out discharges through ventilative layer 12, when not using the circuit breaker for a long time, break switch 5, pull dust-proof door 10 to the bottommost, when needing to change the circuit breaker, cut off the power to the circuit breaker first, and loosening the fastening screw 7 again, taking out the lead from the wire releasing hole 6, then lifting the whole breaker upwards, taking down the whole breaker by matching the sliding block 13 with the sliding groove 14, and installing a new breaker according to the steps.

The utility model discloses a set up vent 8, fixed slide 9, dustproof door 10 and ventilative layer 12, when needing to use the circuit breaker, earlier through handle 11 with dustproof door 10 in fixed slide 9 the slide that makes progress, until the top of dustproof door 10 and the inner wall top of vent 8 are laminated mutually, close switch 5 again, make the circuit breaker work, the heat that the circuit breaker during operation distributed is discharged through ventilative layer 12, when not using the circuit breaker for a long time, it can to pull dustproof door 10 to the bottommost, make the circuit breaker have better heat dispersion, can not damage because of overheated; through setting up back casing 2, bottom plate 1, slider 13 and spout 14, when needs are installed the circuit breaker, earlier through-hole 15 with bottom plate 1 fixed to assigned position, then install back casing 2 in spout 14 through slider 13 above that, make circuit breaker monolithic stationary on bottom plate 1, when needs change circuit breaker, upwards promote the circuit breaker is whole, slider 13 cooperation spout 14 can be with the whole taking off of circuit breaker, conveniently install and dismantle the circuit breaker, and the installation is enough stable.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A shell structure of a plastic shell type circuit breaker is characterized in that: comprises a bottom plate (1), two groups of sliding grooves (14) are arranged on the upper ends of the two sides of the front surface of the bottom plate (1), a sliding block (13) is arranged in each sliding groove (14), a rear shell (2) is arranged on the front surface of each sliding block (13), a front shell (3) is arranged on the front surface of each rear shell (2), four groups of fixing bolts (4) are arranged on the upper ends and the lower ends of the two sides of the front shell (3), a switch (5) is arranged in the middle of the front surface of each front shell (3), three groups of wire releasing holes (6) are arranged on the two sides and the middle part of the rear end of the top of each front shell (3), three groups of fastening screws (7) are arranged on the two sides and the middle part of the front surface of each front shell (3), a vent (8) is arranged in the middle of one side of each front shell (3), two groups of fixing slide ways (9) are arranged on the front end and the inner wall of each vent (8) close to the outer side, the novel air-permeable dust-proof door is characterized in that a dust-proof door (10) is arranged inside the fixed slide way (9), a handle (11) is arranged on one side of the dust-proof door (10) close to the bottom end in the middle, an air-permeable layer (12) is arranged on the inner side of the inner wall of the ventilation opening (8) close to the inner side, and four groups of through holes (15) are arranged on the front end and the rear end penetrating through the bottom plate (1) close to four corners.

2. The case structure of the plastic case type circuit breaker according to claim 1, wherein: the bottom plate (1) is arranged in a rectangular shape, the bottom plate (1) is movably connected with the rear shell (2), and the rear shell (2) is fixedly connected with the front shell (3).

3. The case structure of the plastic case type circuit breaker according to claim 1, wherein: vent (8) are the rectangle setting, and the first half of vent (8) is closed setting, and the lower half of vent (8) is open setting.

4. The case structure of the plastic case type circuit breaker according to claim 1, wherein: the fixed slideway (9) is matched with the dustproof door (10) for use, the fixed slideway (9) is movably connected with the dustproof door (10), and the height of the dustproof door (10) is equal to the height of the opening part of the ventilation opening (8).

5. The case structure of the plastic case type circuit breaker according to claim 1, wherein: the ventilating layer (12) is internally provided with a dust screen, the ventilating layer (12) is arranged in a square shape, and the ventilating layer (12) is fixedly connected with the ventilating opening (8).

6. The case structure of the plastic case type circuit breaker according to claim 1, wherein: the sliding block (13) is arranged in a T shape, the sliding block (13) is matched with the sliding groove (14) for use, and the sliding block (13) is movably connected with the sliding groove (14).