CN219738871U - Plastic case circuit breaker - Google Patents
Plastic case circuit breaker Download PDFInfo
- Publication number
- CN219738871U CN219738871U CN202321058474.2U CN202321058474U CN219738871U CN 219738871 U CN219738871 U CN 219738871U CN 202321058474 U CN202321058474 U CN 202321058474U CN 219738871 U CN219738871 U CN 219738871U
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- China
- Prior art keywords
- shell
- circuit breaker
- grooves
- casing
- fixedly connected
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- 239000004033 plastic Substances 0.000 title description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of circuit breakers, in particular to a molded case circuit breaker, which comprises a first shell and a second shell, wherein two groups of connecting grooves are formed in the left side surface and the right side surface of the first shell, clamping grooves are formed in the inner wall of each connecting groove, a connecting plate is fixedly connected with the left side surface and the right side surface of the second shell, a clamping block is fixedly connected with the lower end of each connecting plate, a plurality of groups of radiating holes are formed in the left side surface and the right side surface of the first shell, the connecting blocks are clamped into the connecting grooves and the clamping blocks into the clamping grooves, at the moment, the first shell and the second shell are fixed, and then the connecting grooves are reinforced and fixed by screws, so that the stability of the connection of the shells is improved, the use safety of the circuit breaker is improved by one step, and the problems that the use safety of the circuit breaker is low, the connection strength is weak, the safety accident is easy to cause, and the installation of the shells is inconvenient.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a molded case circuit breaker.
Background
The plastic shell type breaker is equipment for overload long delay and short circuit instantaneous movement, and comprises the characteristics of rated limit short circuit breaking capacity, current limiting breaking capacity and the like; low-voltage circuit breakers are widely visible in electrical product exhibitions and the electrical appliance market, and particularly plastic-shell circuit breakers are favored. The plastic shell type circuit breaker has the two-section protection function of overload long delay and short circuit snap, and can also be matched with a module unit such as a leakage device, measurement, electric operation and the like. In a low-voltage distribution system, the low-voltage distribution system is commonly used as a terminal switch or a branch switch to replace a fuse and a knife switch which are commonly used in the past;
in the use process of the circuit breaker, the current can generate heat in the circuit breaker for a long time, so that high temperature is generated, the traditional circuit breaker is closed, the high temperature in the circuit breaker cannot be dispersed for a long time and is accumulated in the circuit breaker shell, the temperature of the circuit breaker shell is increased, and the circuit breaker shell is a plastic shell, so that the plastic shell is dissolved when the temperature is increased to a certain strength, and the use safety of the circuit breaker is affected; and the upper and lower two sets of shells are mainly fixedly connected through screws in the use process of the circuit breaker, when the screw falling-off condition occurs, the shell above the circuit breaker can slide down, so that elements inside the circuit breaker are exposed, safety accidents are easy to cause, and the upper and lower two sets of shells are inconvenient to install.
In view of this, we propose a molded case circuit breaker.
Disclosure of Invention
In order to remedy the above shortcomings, the present utility model provides a molded case circuit breaker.
The technical scheme of the utility model is as follows:
the utility model provides a moulded case circuit breaker, includes first casing and second casing, the top of first casing is provided with the second casing, two sets of spread grooves have all been seted up on the left and right sides surface of first casing, the draw-in groove has been seted up to the inner wall of spread groove, the left and right sides fixedly connected with connecting plate of second casing, the lower extreme fixedly connected with fixture block of connecting plate, the connecting plate with the position of spread groove corresponds, the fixture block with the position of draw-in groove corresponds, a plurality of groups louvres have been seted up on the left and right sides surface of first casing.
As the preferable technical scheme, three groups of first grooves are formed in the surfaces of the front side and the rear side of the first shell, wiring holes are formed in the inner walls of the first grooves, and sealing rubber strips are fixedly connected to the inside of the wiring holes.
As the preferable technical scheme, second grooves are formed in the middle of the surfaces of the left side and the right side of the first shell, first connecting rods are fixedly connected to the positions, corresponding to the second grooves, of the inner walls of the left side and the right side of the first shell, and fixing screw holes are formed in the upper inner portions of the first connecting rods.
As the preferable technical scheme, third grooves are formed in the middle of the surfaces of the left side and the right side of the second shell, and second connecting rods are fixedly connected to the positions, corresponding to the third grooves, of the inner walls of the left side and the right side of the second shell.
As the preferable technical scheme, the inside of second connecting rod has seted up the connection through-hole, the connection through-hole with fixed wire hole position is corresponding, the inside of connection through-hole is provided with the fixed screw.
As the preferable technical scheme, fixed panel is fixedly connected with the middle position of the upper side surface of the second shell, an adjusting through hole is formed in the middle position of the fixed panel, and an adjusting block is arranged in the adjusting through hole.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, two groups of connecting grooves are formed in the left and right side surfaces of the first shell, the clamping grooves are formed in the inner walls of the connecting grooves, the connecting plates are fixedly connected with the left and right side surfaces of the second shell, the clamping blocks are fixedly connected with the lower ends of the connecting plates, in the installation process, the connecting plates are aligned with the connecting grooves to press the first shell and the second shell inwards, when the surfaces of the two groups of shells are attached, the clamping blocks are just clamped in the clamping grooves, the first shell and the second shell are fixed at the moment, then the first shell and the second shell are reinforced and fixed by using screws, the stability of the connection of the shells is improved, the use safety is improved, the upper and lower groups of shells are conveniently connected, the installation speed is improved, and the problems that after the screws fall off, the upper shells fall off, the elements in the circuit breaker are exposed, and safety accidents are easily caused are avoided.
2. According to the utility model, the left side surface and the right side surface of the first shell are provided with the plurality of groups of radiating holes, so that high temperature generated in the circuit breaker can be radiated to the outer side of the circuit breaker through the radiating holes, the temperature in the circuit breaker is reduced, the use safety of equipment is further improved, and the problem that the use safety of the circuit breaker is influenced because the shell of the circuit breaker is a plastic shell and the plastic shell is dissolved when the temperature is high to a certain strength is solved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the upper side structure of the second housing of the present utility model;
FIG. 3 is a schematic view of the lower side structure of the second housing of the present utility model;
fig. 4 is a schematic view of a first housing structure of the present utility model.
In the figure: 1. a first housing; 11. a connecting groove; 12. a clamping groove; 13. a heat radiation hole; 14. a first groove; 15. a wiring hole; 16. a sealing rubber strip; 17. a second groove; 18. a first connecting rod; 19. fixing the wire hole; 2. a second housing; 21. a connecting plate; 22. a clamping block; 23. a third groove; 24. a second connecting rod; 25. a connecting through hole; 26. fixing the panel; 27. adjusting the through hole; 28. an adjusting block; 29. and (5) fixing a screw.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two elements; the specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 4, the present utility model provides a technical solution:
the molded case circuit breaker comprises a first shell 1 and a second shell 2, wherein the second shell 2 is arranged above the first shell 1, two groups of connecting grooves 11 are formed in the left side surface and the right side surface of the first shell 1, clamping grooves 12 are formed in the inner walls of the connecting grooves 11, connecting plates 21 are fixedly connected with the left side surface and the right side surface of the second shell 2, clamping blocks 22 are fixedly connected with the lower ends of the connecting plates 21, the connecting plates 21 correspond to the positions of the connecting grooves 11, the clamping blocks 22 correspond to the positions of the clamping grooves 12, and a plurality of groups of heat dissipation holes 13 are formed in the left side surface and the right side surface of the first shell 1.
The second shell 2 is placed above the first shell 1 in the installation process, so that the connecting plate 21 is aligned with the connecting groove 11, meanwhile, the second shell 2 is pressed towards one side of the first shell 1, the connecting plate 21 is clamped into the connecting groove 11, and after the second shell 2 contacts with the surface of the first shell 1, the clamping block 22 is clamped in the clamping groove 12 to fix the second shell 2 and the first shell 1;
after the inside temperature of circuit breaker risees, inside heat can be outwards distributed through louvre 13, avoids heat long-time gathering in the inside of circuit breaker, effectively reduces the inside temperature of circuit breaker, effectively ensures the safety in utilization of circuit breaker.
As a preference of this embodiment, three groups of first grooves 14 are respectively provided on the front and rear side surfaces of the first housing 1, the inner walls of the first grooves 14 are respectively provided with a wiring hole 15, the inside of the wiring holes 15 are respectively fixedly connected with a sealing rubber strip 16, the middle positions of the left and right side surfaces of the first housing 1 are respectively provided with a second groove 17, the left and right side inner walls of the first housing 1 are respectively fixedly connected with a first connecting rod 18 corresponding to the second grooves 17, the upper inner parts of the first connecting rods 18 are respectively provided with a fixing screw hole 19, the middle positions of the left and right side surfaces of the second housing 2 are respectively provided with a third groove 23, the left and right side inner walls of the second housing 2 are respectively fixedly connected with a second connecting rod 24 corresponding to the third grooves 23, the inside of the second connecting rods 24 are respectively provided with a connecting through hole 25, the connecting through holes 25 are respectively corresponding to the fixing screw holes 19, and fixing screws 29 are respectively arranged in the connecting through holes 25.
Firstly, the electric wire passes through the wiring hole 15 to be connected with the internal element, the sealing rubber strip 16 is used for protecting the surface of the electric wire, so that the surface of the electric wire is prevented from being worn out when the side wall of the wiring hole 15 is contacted with the electric wire for a long time, and the circuit safety is improved;
after connecting the electric wire with the circuit breaker internal component, fix first casing 1 and second casing 2 joint, the lower surface of second connecting rod 24 can contact with the upper surface of head rod 18 simultaneously, make connecting through-hole 25 and fixed wire hole 19 correspond, then screw fixing screw 29 into fixed wire hole 19, further fix first casing 1 and second casing 2, in the use, in case the screw drops, connecting plate 21 and fixture block 22 block respectively in the inside of spread groove 11 and draw-in groove 12, avoid the second casing 2 of top to drop.
As a preference of this embodiment, a fixing panel 26 is fixedly connected to the middle position of the upper side surface of the second housing 2, an adjusting through hole 27 is formed in the middle position of the fixing panel 26, and an adjusting block 28 is disposed in the adjusting through hole 27.
Further, the adjusting block 28 is used for adjusting the internal energizing condition of the circuit breaker, and when a short circuit is hard, the adjusting block 28 automatically wants to rotate at the rear side to cut off the circuit.
When the molded case circuit breaker is used, in the use process, a worker firstly passes through a wiring hole 15 to connect with an internal element, then a second shell 2 is placed above a first shell 1, a connecting plate 21 is aligned with a connecting groove 11, meanwhile, the second shell 2 is pressed towards one side of the first shell 1, the connecting plate 21 is clamped into the connecting groove 11, after the second shell 2 is contacted with the surface of the first shell 1, a clamping block 22 is clamped in the clamping groove 12, the second shell 2 and the first shell 1 are fixed, meanwhile, the lower surface of a second connecting rod 24 is contacted with the upper surface of a first connecting rod 18, a connecting through hole 25 corresponds to a fixing wire hole 19, and then a fixing screw 29 is screwed into the fixing wire hole 19 to further fix the first shell 1 and the second shell 2; meanwhile, in the use process, heat inside the circuit breaker can be emitted to the outside through the heat dissipation holes 13, so that the heat is prevented from being accumulated inside the circuit breaker for a long time, and the temperature inside the circuit breaker is effectively reduced.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. Moulded case circuit breaker, including first casing (1) and second casing (2), its characterized in that: the utility model discloses a heat dissipation device for the solar cell module, including first casing (1), second casing (2) is provided with to the top of first casing (1), two sets of spread groove (11) have all been seted up on the left and right sides surface of first casing (1), draw-in groove (12) have been seted up to the inner wall of spread groove (11), the left and right sides fixedly connected with connecting plate (21) of second casing (2), the lower extreme fixedly connected with fixture block (22) of connecting plate (21), connecting plate (21) with the position of spread groove (11) corresponds, fixture block (22) with the position of draw-in groove (12) corresponds, a plurality of sets of louvres (13) have been seted up on the left and right sides surface of first casing (1).
2. The molded case circuit breaker of claim 1, wherein: three groups of first grooves (14) are formed in the surfaces of the front side and the rear side of the first shell (1), wiring holes (15) are formed in the inner walls of the first grooves (14), and sealing rubber strips (16) are fixedly connected inside the wiring holes (15).
3. The molded case circuit breaker of claim 1, wherein: the middle parts of the surfaces of the left side and the right side of the first shell (1) are provided with second grooves (17), first connecting rods (18) are fixedly connected to the positions, corresponding to the second grooves (17), of the inner walls of the left side and the right side of the first shell (1), and fixing wire holes (19) are formed in the upper inner parts of the first connecting rods (18).
4. A molded case circuit breaker as in claim 3 wherein: third grooves (23) are formed in the middle of the surfaces of the left side and the right side of the second shell (2), and second connecting rods (24) are fixedly connected to the positions, corresponding to the third grooves (23), of the inner walls of the left side and the right side of the second shell (2).
5. The molded case circuit breaker of claim 4, wherein: the inside of second connecting rod (24) has seted up connecting through-hole (25), connecting through-hole (25) with fixed silk hole (19) position is corresponding, the inside of connecting through-hole (25) is provided with fixed screw (29).
6. The molded case circuit breaker of claim 1, wherein: the upper side surface middle part position fixedly connected with fixed panel (26) of second casing (2), regulation through-hole (27) have been seted up in the middle part position of fixed panel (26), the inside of regulation through-hole (27) is provided with regulating block (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321058474.2U CN219738871U (en) | 2023-05-06 | 2023-05-06 | Plastic case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321058474.2U CN219738871U (en) | 2023-05-06 | 2023-05-06 | Plastic case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219738871U true CN219738871U (en) | 2023-09-22 |
Family
ID=88058599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321058474.2U Active CN219738871U (en) | 2023-05-06 | 2023-05-06 | Plastic case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219738871U (en) |
-
2023
- 2023-05-06 CN CN202321058474.2U patent/CN219738871U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |