CN220543823U - Mounting structure of flash barrier on terminal cover - Google Patents
Mounting structure of flash barrier on terminal cover Download PDFInfo
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- CN220543823U CN220543823U CN202322054950.XU CN202322054950U CN220543823U CN 220543823 U CN220543823 U CN 220543823U CN 202322054950 U CN202322054950 U CN 202322054950U CN 220543823 U CN220543823 U CN 220543823U
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- arc
- terminal cover
- flash barrier
- shaped
- barrier
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- 230000004888 barrier function Effects 0.000 title claims abstract description 54
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000016507 interphase Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a mounting structure of flash barrier on terminal cover, it includes terminal cover (1) and flash barrier (2, 2 '), one side towards the circuit breaker body on terminal cover (1) is provided with at least one arc extinguishing chamber (1 a), be provided with two flash barrier mounting grooves (101) side by side around in arc extinguishing chamber (1 a) at least, flash barrier (2, 2') are adorned in two flash barrier mounting grooves (101) side by side around separate arc extinguishing chamber (101) and form a plurality of cavities, its characterized in that: the arc barrier mounting groove (101) and the arc barriers (2, 2 ') completely separate a plurality of chambers so as to enable an arc to pass through corresponding holes on the arc barriers (2, 2') to form an arc serpentine exhaust channel. The whole mounting structure reduces the volume of the terminal cover and can also achieve the purpose of zero flashover.
Description
Technical Field
The utility model belongs to the technical field of molded case circuit breakers, and particularly relates to a mounting structure of an arc-shield plate on a terminal cover.
Background
The plastic shell circuit breaker is a common distribution protection electric appliance, has the functions of on/off and overload and short-circuit protection for supplying power to a load, and is widely applied to an electric power distribution system. The molded case circuit breaker has stronger arc extinguishing capability and can bear larger short-circuit current. However, when the plastic case circuit breaker bears a large short-circuit current, interphase short-circuit at an external wiring position or short-circuit between adjacent products is easy to occur, so that the distribution box is burnt.
In order to avoid the phenomenon that when the plastic shell circuit breaker bears large short-circuit current, interphase short circuit at an external wiring position or short circuit between adjacent products occurs to cause burning loss of a distribution box, the zero-flashover terminal cover is added to the wiring end of the circuit breaker, and the flash-over plates are arranged on the terminal cover, but in the prior art, the flash-over plates are arranged in an in-line mode on the terminal cover, so that a plurality of flash-over plates are required to be arranged for realizing the breaking zero-flashover function of the circuit breaker, the size of the terminal cover is overlarge, and the actual size of the circuit breaker product is large and is not suitable for occasions with small space.
Disclosure of Invention
The utility model aims to provide the installation structure of the arc-shield on the terminal cover, aiming at the defects that the prior arc-shield installation structure causes the overlarge volume of the terminal cover, so that the actual size of a circuit breaker product is larger and the circuit breaker product is not suitable for occasions with smaller space, and the arc-shield is transversely staggered on the terminal cover to form a snake-shaped exhaust channel. The volume of the terminal cover is reduced, and the purpose of zero flashover can be realized.
Technical proposal
In order to achieve the technical purpose, the utility model provides a mounting structure of an arc-shield plate on a terminal cover, which comprises the terminal cover and the arc-shield plate, wherein one side of the terminal cover facing to a breaker body is provided with at least one arc-extinguishing cavity, at least two arc-shield plate mounting grooves which are arranged in parallel in the front and the rear are arranged in the arc-extinguishing cavity, and the arc-shield plate is arranged in the two arc-shield plate mounting grooves which are arranged in the front and the rear to separate the arc-extinguishing cavity into a plurality of cavities, and the mounting structure is characterized in that: the arc barrier mounting groove and the arc barrier completely separate the chambers so that the arc passes through the corresponding holes on the arc barrier to form an arc serpentine exhaust channel.
In one embodiment, the two arc-shaped mounting grooves arranged side by side are arranged in a transversely non-aligned manner.
In one embodiment, the arc-shaped plate is provided with a plurality of holes scattered on part of the surface, and the holes scattered on the part of the surface of the arc-shaped plate are not aligned in the transverse direction and/or the longitudinal direction after the arc-shaped plate is arranged in the front and back two arc-shaped plate mounting grooves side by side.
In one embodiment, holes are distributed on the whole surface of the arc-shaped plate, and the arc-shaped plate is arranged in the front arc-shaped plate mounting grooves and the rear arc-shaped plate mounting grooves which are arranged side by side to form a transverse serpentine exhaust channel.
In one embodiment, the upper half of the flash barrier is provided with a first hole, and the flash barriers in the two flash barrier mounting grooves arranged in parallel in front and back are reversely arranged to form a longitudinal snake-shaped exhaust channel.
In one embodiment, two parts of the diagonal line of the arc-shaped plate are provided with holes II, and the arc-shaped plates in the front arc-shaped plate mounting grooves and the rear arc-shaped plate mounting grooves which are arranged side by side are reversely arranged to form crisscross snake-shaped exhaust channels;
in one embodiment, the left part of the flash barrier is provided with a third hole, and flash barriers in the front flash barrier mounting groove and the rear flash barrier mounting groove are arranged in a left-right staggered mode so as to form a transverse serpentine exhaust channel.
In one embodiment, the two arc-shaped mounting grooves arranged side by side are arranged in a transverse alignment.
In one embodiment, the two arc-shaped mounting grooves arranged side by side are arranged in a transverse alignment.
Advantageous effects
The utility model provides a mounting structure of an arc-shield plate on a terminal cover, which comprises the terminal cover and the arc-shield plate, wherein one side of the terminal cover facing a circuit breaker body is provided with at least one arc-extinguishing cavity, at least two arc-shield plate mounting grooves which are arranged in parallel front and back are arranged in the arc-extinguishing cavity, the arc-shield plate is arranged in the two arc-shield plate mounting grooves which are arranged in parallel front and back to separate the arc-extinguishing cavity into a plurality of chambers, and the arc-shield plate mounting grooves and the arc-shield plate completely separate the chambers so that an arc passes through corresponding holes on the arc-shield plate to form an arc snakelike exhaust channel. The whole mounting structure reduces the volume of the terminal cover and can also achieve the purpose of zero flashover.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a product in which a flash barrier is mounted on a terminal cover in embodiment 1 of the present utility model;
FIG. 2 is a top view of the arc shield of embodiment 1 of the present utility model mounted on a terminal cover;
FIG. 3 is a schematic view of a terminal cover product in example 1 of the present utility model;
fig. 4 is a front view of the terminal cover in embodiment 1 of the present utility model;
FIG. 5 is a schematic view showing the positions of the arc-shield mounting grooves in embodiment 1 of the present utility model;
FIG. 6 is a schematic diagram of a flash barrier product according to example 1 of the present utility model;
FIG. 7 is a schematic view showing a product in which a flash barrier is mounted on a terminal cover in embodiment 2 of the present utility model;
FIG. 8 is a front view of the arc shield of embodiment 2 of the present utility model mounted on a terminal cover;
FIG. 9 is a schematic diagram of a flash barrier product according to example 2 of the present utility model;
FIG. 10 is a schematic view showing a product in which a flash barrier is mounted on a terminal cover in embodiment 3 of the present utility model;
FIG. 11 is a front view of the arc shield of embodiment 3 of the present utility model mounted on a terminal cover;
FIG. 12 is a schematic view of a flash barrier product according to example 3 of the present utility model;
FIG. 13 is a schematic view showing a product in which a flash barrier is mounted on a terminal cover in embodiment 4 of the present utility model;
FIG. 14 is a front view of the arc shield of embodiment 4 of the present utility model mounted on a terminal cover;
FIG. 15 is a schematic view of a flash barrier product according to example 3 of the present utility model;
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used in the description of the present application for purposes of illustration only and do not represent the only embodiment.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be a direct contact of the first feature with the second feature, or an indirect contact of the first feature with the second feature via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.
Unless defined otherwise, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. The term "and/or" as used in the specification of this application includes any and all combinations of one or more of the associated listed items.
Example 1
In order to solve the problem that the existing arc-shield mounting structure causes the size of the terminal cover to be too large, which is not suitable for the occasion with smaller space, as shown in fig. 1 and 2, the embodiment provides a mounting structure of an arc-shield on the terminal cover, which comprises a terminal cover 1 and arc-shields 2,2', wherein at least one arc-extinguishing cavity 1a is arranged on one side of the terminal cover 1 facing the circuit breaker body, as shown in fig. 3 and 4, at least two arc-shield mounting grooves 101 which are arranged side by side in front of and behind are arranged in the arc-extinguishing cavity 1a, arc-shields 2,2' are arranged in the two arc-shield mounting grooves 101 which are arranged side by side in front of and behind to separate the arc-extinguishing cavity 1a into a plurality of chambers, and the arc-shields mounting grooves 101 and the arc shields 2,2 'completely separate the chambers, so that the electric arcs pass through corresponding holes on the arc shields 2,2' to form a snakelike exhaust channel.
In this embodiment, as shown in fig. 1, the direction indicated by the X-axis arrow in the longitudinal direction of the terminal cover 1 is set to be transverse, the direction indicated by the Y-axis arrow in the width direction of the terminal cover is set to be longitudinal, and as shown in fig. 1,2 and 5, the two arc-shaped plate mounting grooves 101 arranged side by side in front and back are arranged in a laterally misaligned manner. The arc baffles 2,2 'are provided with holes scattered over the whole surface as shown in fig. 6, and the arc baffles 2,2' are mounted in the front and rear side-by-side arc baffle mounting grooves 101 to form a transverse serpentine exhaust passage. After the arc generated by breaking of the circuit breaker passes through the cavity after passing through the holes on the front arc-shielding plate 2, the arc passes through the holes on the rear arc-shielding plate 2' and is discharged through the exhaust hole 1b on the terminal cover 1 due to air flow. The arc discharge passage is a transverse serpentine exhaust passage.
Example 2
In another embodiment of the present utility model, the arc-shaped plates 2,2' are provided with holes scattered on part of the surface, and after the arc-shaped plates 2,2' are mounted in the two arc-shaped plate mounting grooves 101 arranged side by side, the holes scattered on part of the surface of the arc-shaped plates 2,2' are not aligned in the transverse direction and/or the longitudinal direction.
Specifically, as shown in fig. 7,8 and 9, the upper half of the arc-shaped plate 2,2 'is provided with a hole 2a, and the arc-shaped plates 2,2' in the two arc-shaped plate mounting grooves 101 arranged in parallel in front and back are reversely arranged into a solar grid so as to form a longitudinal serpentine exhaust channel. In this embodiment, the two arc-shaped mounting grooves 101 are aligned and arranged side by side. After the arc generated by breaking of the circuit breaker passes through the cavity after passing through the holes at the upper part of the front arc-shielding plate 2, the arc passes through the holes at the lower part of the rear arc-shielding plate 2' and is discharged through the exhaust hole 1a on the terminal cover 1 due to air flow. The arc discharge passage is a longitudinal serpentine exhaust passage.
Of course, further, when the front arc-shield mounting grooves 101 and the rear arc-shield mounting grooves 101 are arranged in a staggered manner, a transverse serpentine exhaust channel is added to the arc, and the arc exhaust channel is a serpentine exhaust channel combining the transverse direction and the longitudinal direction.
Example 3
As shown in fig. 10, 11 and 12, in a further embodiment of the present utility model, two portions of the diagonal line of the arc-shaped plates 2,2' are provided with holes 2b,2b ', and the arc-shaped plates 2,2' in the two arc-shaped plate mounting grooves 101 arranged in parallel in front and back are reversely mounted in a grid shape to form crisscross serpentine exhaust passages.
Specifically, in this embodiment, two arc-shaped mounting grooves 101 are aligned and arranged side by side. At the beginning, the arc moves forward along the hole to form a longitudinal arc serpentine channel, but when the arc moves to strike the front arc baffle, most of the arc moves longitudinally, and part of the arc also moves transversely to form a transverse serpentine channel, so that crisscross serpentine exhaust channels are formed.
Of course, further, the two arc-baffle mounting slots 101 arranged side by side in front and back are staggered, so that the length of the transverse serpentine exhaust channel is increased, and the effect of the arc-eliminating channel is better.
Example 4
As shown in fig. 13, 14 and 15, in a further embodiment of the present utility model, the left portion of the arc barrier 2 is provided with a hole three 2a, and the arc barriers 2,2' in the two arc barrier mounting slots 101 arranged in parallel in front and back are staggered left and right to form a horizontal cross-shaped grid so as to form a transverse serpentine exhaust channel. In this embodiment, two arc-shaped plate mounting grooves 101, which are arranged side by side in front and rear, are aligned. After the arc generated by breaking of the circuit breaker passes through the cavity after passing through the holes on the left side of the front arc-shielding plate 2, the arc passes through the holes on the right side of the rear arc-shielding plate 2' and is discharged through the exhaust hole 1b on the terminal cover 1 due to air flow. The arc discharge passage is a transverse serpentine exhaust passage.
Of course, further, the two arc-baffle mounting slots 101 arranged side by side in front and back are staggered, so that the length of the transverse serpentine exhaust channel is increased, and the effect of the arc-eliminating channel is better.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (9)
1. The utility model provides a mounting structure of flash barrier on terminal cover, it includes terminal cover (1) and flash barrier (2, 2 '), one side towards the circuit breaker body on terminal cover (1) is provided with at least one arc extinguishing chamber (1 a), be provided with two flash barrier mounting grooves (101) side by side around in arc extinguishing chamber (1 a) at least, flash barrier (2, 2') are adorned in two flash barrier mounting grooves (101) side by side around separate arc extinguishing chamber (1 a) and form a plurality of cavities, its characterized in that: the arc barrier mounting groove (101) and the arc barriers (2, 2 ') completely separate a plurality of chambers so as to enable an arc to pass through corresponding holes on the arc barriers (2, 2') to form an arc serpentine exhaust channel.
2. The mounting structure of a flash barrier on a terminal cover as claimed in claim 1, wherein: the front arc-shaped baffle installation grooves (101) and the rear arc-shaped baffle installation grooves are arranged in a transversely non-aligned mode.
3. The mounting structure of a flash barrier on a terminal cover as claimed in claim 1, wherein: the arc-shaped plates (2, 2 ') are provided with a plurality of holes scattered on part of the surfaces, and the holes scattered on part of the surfaces of the arc-shaped plates (2, 2 ') are not aligned in the transverse direction and/or the longitudinal direction after the arc-shaped plates (2, 2 ') are arranged in the front arc-shaped plate mounting grooves (101) and the rear arc-shaped plate mounting grooves which are arranged side by side.
4. The mounting structure of a flash barrier on a terminal cover as claimed in claim 2, wherein: holes distributed on the whole surface are formed in the arc-shaped plates (2, 2 '), and the arc-shaped plates (2, 2') are arranged in the front arc-shaped plate mounting grooves (101) and the rear arc-shaped plate mounting grooves which are arranged side by side to form a transverse serpentine exhaust channel.
5. A mounting structure of a flash barrier to a terminal cover as claimed in claim 3, wherein: the upper half part of each arc-shaped plate (2, 2 ') is provided with a hole I (2 a), and the arc-shaped plates (2, 2') in the two arc-shaped plate mounting grooves (101) which are arranged in parallel at the front and the back are reversely mounted so as to form a longitudinal snake-shaped exhaust channel.
6. A mounting structure of a flash barrier to a terminal cover as claimed in claim 3, wherein: two parts of the diagonal line of the flash barrier plates (2, 2 ') are provided with holes two (2 b,2b '), and the flash barrier plates (2, 2 ') in the two flash barrier plate mounting grooves (101) which are arranged in parallel front and back are reversely mounted so as to form crisscrossed snake-shaped exhaust channels.
7. A mounting structure of a flash barrier to a terminal cover as claimed in claim 3, wherein: and the left part of each arc barrier (2, 2 ') is provided with a hole III (2 c), and the arc barriers (2, 2') in the front arc barrier mounting grooves (101) and the rear arc barrier mounting grooves (101) are arranged in a left-right staggered manner so as to form a transverse snake-shaped exhaust channel.
8. The mounting structure of a flash barrier to a terminal cover as claimed in claim 5, 6 or 7, wherein: the front arc-shaped baffle installation grooves (101) and the rear arc-shaped baffle installation grooves are arranged in a transverse alignment mode.
9. A mounting structure of a flash barrier to a terminal cover as claimed in claim 3, wherein: the front arc-shaped baffle installation grooves (101) and the rear arc-shaped baffle installation grooves are arranged in a transverse alignment mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322054950.XU CN220543823U (en) | 2023-08-01 | 2023-08-01 | Mounting structure of flash barrier on terminal cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322054950.XU CN220543823U (en) | 2023-08-01 | 2023-08-01 | Mounting structure of flash barrier on terminal cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220543823U true CN220543823U (en) | 2024-02-27 |
Family
ID=89970311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322054950.XU Active CN220543823U (en) | 2023-08-01 | 2023-08-01 | Mounting structure of flash barrier on terminal cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220543823U (en) |
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2023
- 2023-08-01 CN CN202322054950.XU patent/CN220543823U/en active Active
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