CN113632192A - Cover of air circuit breaker - Google Patents
Cover of air circuit breaker Download PDFInfo
- Publication number
- CN113632192A CN113632192A CN201980094765.7A CN201980094765A CN113632192A CN 113632192 A CN113632192 A CN 113632192A CN 201980094765 A CN201980094765 A CN 201980094765A CN 113632192 A CN113632192 A CN 113632192A
- Authority
- CN
- China
- Prior art keywords
- cover
- engaging
- circuit breaker
- air circuit
- attachment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/06—Housings; Casings; Bases; Mountings
Landscapes
- Breakers (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The cover of the air circuit breaker has: a cover main body (20); and 2 or more engaging pieces (3) that are supported by the cover main body (20) in a cantilever manner and engage with an engagement object in the air circuit breaker. Each of the 2 or more engaging pieces (3) has: a V-shaped elastic part (31) the base end of which is supported at the end of the cover main body (20); and a protruding part (32) which is provided at the front end of the elastic part (31) and engages with the engagement object.
Description
Technical Field
The present invention relates to a cover for an air circuit breaker, which is detachably configured.
Background
Conventionally, a circuit breaker is provided with a cover detachably attached to a circuit breaker main body. For example, patent document 1 discloses a technique in which a snap structure is provided in a cover attached to a breaker body so that the cover can be attached and detached.
Patent document 1: japanese laid-open patent publication No. 2009-266480
Disclosure of Invention
The air circuit breaker can be mounted with accessories, and has a structure that the cover can be detached from the breaker main body, so that the accessories can be replaced or added after the air circuit breaker is arranged on a switchboard. The cover is generally fastened to the air circuit breaker main body at a plurality of locations by fastening members such as screws so as to be able to withstand the internal pressure of gas generated during the circuit breaking. Therefore, it is difficult to easily perform the replacement or addition work of accessories.
When the snap structure described in patent document 1 is adopted for the cover for covering accessories, the accessories can be easily replaced or added, but the fixing strength with respect to the gas internal pressure generated at the time of disconnection may be insufficient. The present invention is not limited to a cover for covering accessories, and the same applies to other covers to which the internal pressure of gas generated at the time of disconnection is applied.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cover for an air circuit breaker, which can be easily removed with a fixing strength against an internal pressure of gas generated at the time of breaking.
In order to solve the above problems and achieve the object, a cover for an air circuit breaker according to the present invention includes: a cover main body; and 2 or more engaging pieces supported by the cover main body with a cantilever beam and engaged with an engaging object in the air circuit breaker. Each of the 2 or more engaging pieces has:
a V-shaped elastic part, the base end of which is supported on the end part of the cover main body; and a protruding part which is arranged at the front end of the elastic part and is clamped with the clamping object.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the present invention, the gas valve has an effect that the gas valve can be easily detached with a fixing strength against the internal pressure of the gas generated at the time of disconnection.
Drawings
Fig. 1 is an external perspective view of a cover of an air circuit breaker according to embodiment 1 of the present invention.
Fig. 2 is a front view of a cover of an air circuit breaker according to embodiment 1.
Fig. 3 is a diagram showing a state in which the attachment/detachment cover according to embodiment 1 is detached from the main cover.
Fig. 4 is a perspective view of an engagement piece of the accessory attaching and detaching cover according to embodiment 1.
Fig. 5 is a sectional view taken along line V-V of fig. 2.
Fig. 6 is a diagram for explaining a method of detaching the attachment cover from the main cover according to embodiment 1.
Fig. 7 is a cross-sectional view for explaining a force applied to the engagement piece when the attachment/detachment cover is detached from the main cover according to embodiment 1.
Fig. 8 is a diagram showing a state in which the engagement between the engagement piece of the accessory attaching and detaching cover and the main cover according to embodiment 1 is released.
Fig. 9 is a diagram for explaining a force generated in the elastic portion of the engaging piece when it is assumed that the rotation center exists on the housing side compared to the rotation center shown in fig. 6.
Fig. 10 is a diagram showing an example of a cover of an air circuit breaker according to embodiment 2 of the present invention.
Detailed Description
Hereinafter, a cover of an air circuit breaker according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the embodiments.
Embodiment 1.
Fig. 1 is an external perspective view of a cover of an air circuit breaker according to embodiment 1 of the present invention. Fig. 2 is a front view of a cover of an air circuit breaker according to embodiment 1.
As shown in fig. 1 and 2, the cover 100 of the air circuit breaker includes: a main cover 1 attached to the housing 200; and an attachment/detachment cover 2 detachably attached to the main cover 1. In fig. 1, the outer shape of the housing 200 is shown by a phantom line, but the shape of the housing 200 is not limited to the example shown in fig. 1.
Further, the main cover 1 includes: a 1 st front wall portion 11 in which an on button, an off button, a display, and the like are disposed; and a plurality of side wall portions 12, 13, 14, 15, one end of which is continuous with the outer edge of the first front wall portion 11 and extends from one end toward the other end toward the housing 200. Further, the main cover 1 includes: a 2 nd front wall portion 16 having one end continuous with the other end of the side wall portion 12 and extending in a direction parallel to the 1 st front wall portion 11 and spaced apart from the other end of the side wall portion 12; and a 3 rd front wall portion 17 continuous with the other end of the side wall portion 13 and extending in a direction parallel to the 1 st front wall portion 11 and spaced apart from the other end of the side wall portion 13.
Further, the main cover 1 includes: a side wall portion 18 having one end continuous with the other end of the 2 nd front wall portion 16 and extending from the one end toward the other end toward the housing 200; and a side wall portion 19 having one end continuous with the other end of the 3 rd front wall portion 17 and extending from the one end toward the other end toward the housing 200.
The 2 nd front wall portion 16 is formed with a plurality of fastening portions 16a, 16b, the 3 rd front wall portion 17 is formed with a plurality of fastening portions 17a, 17b, and the side wall portion 18 is formed with a fastening portion 18 a. These fastening portions 16a, 16b, 17a, 17b, 18a and the case 200 are fastened by screws. Accordingly, the main cover 1 is firmly fixed to the case 200, and the fixing strength against the internal pressure of the gas generated when the air circuit breaker is opened can be secured.
The attachment/detachment cover 2 includes: a cover main body 20 for covering accessories not shown; and 2 engaging pieces 3 supported by the end of the cover main body 20 in a cantilever manner. The cover body 20 is formed with a concave engagement portion 4 into which a convex engagement portion, not shown, of the main cover 1 is inserted. The attachment/detachment cover 2 is fixed to the main cover 1 by 2 engaging pieces 3 and an engaging portion 4. The accessories, not shown, are, for example, a voltage trip device that disconnects the air circuit breaker from a remote place, an insufficient voltage trip device that disconnects the air circuit breaker when the voltage of the circuit is lower than a reference value, and an auxiliary switch that electrically displays the on or off state of the air circuit breaker.
The cover main body 20 includes: a front wall portion 21 disposed at a cutout portion of the 1 st front wall portion 11 of the main cover 1 and located on the same plane as the 1 st front wall portion 11; a side wall portion 22 having one end continuous with the upper end of the front wall portion 21 and extending from the one end toward the other end toward the housing 200; and a side wall portion 23 having one end continuous with one end of the front wall portion 21 and extending from the one end toward the other end toward the housing 200. The cover main body 20 has a protruding portion 24, and one end of the protruding portion 24 is continuous with the other end of the side wall portion 23 and extends in a direction parallel to the front wall portion 21 and away from the other end of the side wall portion 23. The projecting portion 24 is located on the same plane as the 2 nd front wall portion 16.
Each engaging piece 3 has a snap structure. The accessory attaching/detaching cover 2 is fixed to the main cover 1 by inserting a convex engaging portion, not shown, of the main cover 1 into a concave engaging portion 4 formed in the cover main body 20 and engaging 2 engaging pieces 3 with the 2 nd front wall portion 16 of the main cover 1. Next, the engagement between the main cover 1 and the attachment cover 2 by the 2 engaging pieces 3 and the engaging portion 4 will be specifically described.
Fig. 3 is a diagram showing a state in which the attachment/detachment cover according to embodiment 1 is detached from the main cover. Fig. 4 is a perspective view of an engagement piece of the accessory attaching and detaching cover according to embodiment 1. Fig. 5 is a sectional view taken along line V-V of fig. 2.
As shown in fig. 3, the 2 engaging pieces 3 of the attachment/detachment cover 2 and the 2 nd front wall portion 16 of the main cover 1 can be disengaged from each other by using a tool 300 such as a screwdriver.
As shown in fig. 4, the engaging piece 3 includes: a V-shaped elastic portion 31 whose base end is supported by the other end of the extension portion 24; and a pair of projections 32 provided at positions spaced apart from each other at the distal end of the elastic portion 31 and engaged with the 2 nd front wall portion 16.
The elastic portion 31 has: a 1 st extending portion 31a whose base end is supported by the other end of the extending portion 24 and extends from the base end toward the leading end in a direction orthogonal to the extending direction of the extending portion 24; and a folded portion 31b having a base end continuous with a front end of the 1 st extending portion 31a and folded back toward the 2 nd front wall portion 16. The elastic portion 31 has a 2 nd extending portion 31c, and a base end of the 2 nd extending portion 31c is continuous with a tip end of the folded portion 31b and extends in a region facing the 1 st extending portion 31 a. The 2 nd extending portion 31c extends in a direction opposite to the 1 st extending portion 31a so as to be separated from the 1 st extending portion 31a from the base end toward the tip end.
The engaging piece 3 further includes: a guide groove 33 for guiding the tip of the tool 300; and a hooking rib 34 for hooking the front end of the tool 300. The guide groove 33 and the hooking rib 34 are formed in the center portion in the direction in which the pair of projecting portions 32 in the front end portion of the elastic portion 31 face each other.
As shown in fig. 5, an engaging portion 7 is provided at an end portion of the 2 nd front wall portion 16 facing the engaging piece 3. The engaging portion 7 includes: an engaging surface 71 serving as a surface on the housing 200 side; and an inclined surface 72 formed on a surface opposite to the case 200 and inclined toward the case 200 as it goes toward the front end. In the state shown in fig. 5, the projecting portion 32 of the engaging piece 3 abuts against the engaging surface 71 of the engaging portion 7, and the projecting portion 32 of the engaging piece 3 is engaged with the engaging portion 7. This suppresses detachment of the attachment cover 2 from the main cover 1.
Further, since the accessory attaching/detaching cover 2 is engaged with the main cover 1 by the 2 engaging pieces 3, it is firmly fixed to the main cover 1, and the fixing strength against the internal pressure of the gas generated at the time of the disconnection of the air circuit breaker can be secured. The attachment cover 2 may have 3 or more engaging pieces 3. Further, since the fastening portion 16a is fixed to the case 200 by a screw between the 2 engaging pieces 3 in the main cover 1, it is possible to suppress a change in the position of the engaging portion 7 due to the internal pressure of gas generated at the time of the disconnection of the air circuit breaker. This can further secure fixing strength against the internal pressure of gas generated at the time of opening of the air circuit breaker.
Next, a method of detaching the attachment cover 2 from the main cover 1 will be described. Fig. 6 is a diagram for explaining a method of detaching the attachment/detachment cover from the main cover according to embodiment 1. As shown in fig. 6, in a state where the accessory attaching/detaching cover 2 is attached to the main cover 1, the convex engaging portion 5 formed on the 1 st front wall portion 11 of the main cover 1 is inserted into the concave engaging portion 4 formed on the cover main body 20.
As shown in fig. 6, the attachment/detachment cover 2 is detached from the main cover 1 by inserting the tip of the tool 300 into the engagement piece 3. Specifically, the tip of the tool 300 is inserted into the guide groove 33 shown in fig. 5 of the engaging piece 3, so that the tip of the tool 300 is guided to the position of the hooking rib 34 shown in fig. 5 and hooked to the hooking rib 34. In this state, the tip of the tool 300 is moved in the direction in which the elastic portion 31 of the engagement piece 3 is deflected, whereby the protruding portion 32 of the engagement piece 3 is moved in the direction away from the engagement portion 7.
In a state where the pair of projections 32 are separated from the engagement portion 7, the attachment/detachment cover 2 can rotate about the engagement portion 5 as a rotation center. By rotating the attachment/detachment cover 2 around the half hour hand in fig. 6, the attachment/detachment cover 2 can be detached from the main cover 1 as shown in fig. 6.
Here, a force applied to the engagement piece 3 when the attachment/detachment cover 2 is detached from the main cover 1 will be described. Fig. 7 is a cross-sectional view for explaining a force applied to the engagement piece when the attachment/detachment cover according to embodiment 1 is detached from the main cover. Fig. 8 is a diagram showing a state in which the engagement between the engagement piece of the accessory attaching and detaching cover and the main cover according to embodiment 1 is released.
In a state where the operator bends the elastic portion 31 of one of the engaging pieces 3 with the tool 300, if the accessory attaching and detaching cover 2 rotates about the engaging portion 5 shown in fig. 6, the state shown in fig. 7 is obtained. In the state shown in fig. 7, the elastic portion 31 of one of the engaging pieces 3 is in a state of being deflected by the engaging portion 7, and a force trying to return to the original shape 9 shown by the imaginary line, that is, a force in the direction of the arrow a is generated in the elastic portion 31.
Since the rotation center of the attachment/detachment cover 2 is the engagement portion 5 shown in fig. 6, the elastic portion 31 of the engagement piece 3 moves on the circular arc orbit 51 centered on the engagement portion 5 by the rotation of the attachment/detachment cover 2 as shown in fig. 7. Therefore, the elastic portion 31 of the engaging piece 3 moves in a direction approaching the inclined surface 72 as it moves in the direction of arrow B. Therefore, the force of the elastic portion 31 trying to return to the original shape 9, that is, the force in the direction of arrow a generated in the elastic portion 31 can be increased.
As described above, the inclined surface 72 is formed in the engagement portion 7, and in the state shown in fig. 7, the elastic portion 31 abuts against the inclined surface 72. Therefore, a force trying to move in the direction of arrow B with the engaging portion 5 as the rotation center is generated by the inclined surface 72. The direction of arrow B is a direction in which the auxiliary attaching/detaching cover 2 is detached from the main cover 1 among the circular-arc rails 51 of the elastic portion 31 having the engaging portion 5 as a rotation center.
Therefore, even when the operator separates his or her hand from the accessory attaching and detaching cover 2, the position of one of the engaging pieces 3 is maintained at the position shown in fig. 7, and the position shown in fig. 5 is not returned to unless an external force in the direction opposite to the direction of the arrow B is intentionally applied.
In this state, if the elastic portion 31 of the other engagement piece 3 is flexed, the accessory attaching and detaching cover 2 moves in the direction of arrow B by the force that is generated in the one engagement piece 3 and tries to move in the direction of arrow B. Thereby, as shown in fig. 8, the attachment/detachment cover 2 is detached from the main cover 1. This makes it possible to easily detach the attachment/detachment cover 2 having a structure of 2 or more engaging pieces 3 from the main cover 1.
In addition, the cover 100 may be configured so that the attachment/detachment cover 2 does not move in the direction of the arrow B when the elastic portion 31 of the other engagement piece 3 is deflected in the state where one engagement piece 3 is shown in fig. 7. In this case, a force trying to move in the direction of arrow B is also generated in one of the engaging pieces 3. Therefore, the worker can reduce the force for moving the accessory attachment/detachment cover 2 in the direction of arrow B, and can easily detach the accessory attachment/detachment cover 2 from the main cover 1.
Here, it is assumed that the rotation center is not the engaging portion 5 shown in fig. 6 but the end portion 8 shown in fig. 6. Fig. 9 is a diagram for explaining a force generated in the elastic portion of the engagement piece, assuming that a rotation center exists on the housing side compared to the rotation center shown in fig. 6.
As shown in fig. 9, when the end portion 8 shown in fig. 6 becomes the rotation center of the attachment cover 2, the elastic portion 31 of the engaging piece 3 moves on the circular arc rail 52 centered on the end portion 8 shown in fig. 6. In this case, the elastic portion 31 of the engaging piece 3 moves in the direction away from the inclined surface 72 along with the movement in the direction of arrow C, and therefore the force generated in the direction of arrow a is weaker than that in the case shown in fig. 7.
On the other hand, when the engaging portion 5 shown in fig. 6 is the rotation center of the accessory attachment/detachment cover 2, the elastic portion 31 of the engaging piece 3 moves in the direction approaching the inclined surface 72 as described above, and therefore the force generated in the direction of the arrow a is stronger than that in the state shown in fig. 8. Therefore, the attachment/detachment cover 2 according to embodiment 1 can increase the force for moving the cover main body 20 in the direction of arrow B.
Further, since the elastic portion 31 of the engaging piece 3 is formed in a V shape, the amount of deflection can be increased as compared with the case where it is formed in a U shape. Therefore, when the elastic portion 31 of the engaging piece 3 moves in the direction approaching the inclined surface 72, the force of the elastic portion 31 trying to return to the original shape 9 can be increased. Therefore, the attachment/detachment cover 2 having a structure of 2 or more engaging pieces 3 can be easily detached from the main cover 1.
The object of providing the engagement piece 3 and the engagement portion 4 is set as the accessory attachment/detachment cover 2, but the engagement piece 3 and the engagement portion 4 are not limited to the accessory attachment/detachment cover 2, and may be provided in a cover other than the accessory attachment/detachment cover 2 to which the internal pressure of gas generated at the time of disconnection is applied. The engagement target of the accessory attachment/detachment cover 2 may be the housing 200 instead of the main cover 1.
In the above example, the engaging portion 4 is formed in a concave shape, and the engaging portion 5 is formed in a convex shape, but the present invention is not limited to this example. For example, the cover 100 may have a structure in which the engaging portion 4 is formed in a convex shape and the engaging portion 5 is formed in a concave shape.
As described above, the attachment/detachment cover 2 of the cover 100 includes: a cover main body 20; and 2 or more engaging pieces 3 that are supported by the cover main body 20 so as to be cantilevered thereto and engage with the main cover 1 that is an engagement object in the air circuit breaker. Each engaging piece 3 has: a V-shaped elastic portion 31 whose base end is supported by an end portion of the cover main body 20; and a protrusion 32 provided at the tip of the elastic portion 31 and engaged with an engagement object. As described above, since the accessory attaching/detaching cover 2 is engaged with the main cover 1 by the 2 engaging pieces 3, it is firmly fixed to the main cover 1, and the fixing strength against the internal pressure of the gas generated at the time of the disconnection of the air circuit breaker can be secured. Further, since the engagement piece 3 has a snap structure, the attachment/detachment cover 2 can be easily attached/detached when the attachment is replaced or added. Further, since the elastic portion 31 of the engaging piece 3 is formed in a V shape, the amount of deflection can be increased. Therefore, for example, the force of the elastic portion 31 trying to return to the original shape 9 can be increased, and the force of moving in the direction of detaching the accessory attachment cover 2 becomes large, so that the accessory attachment cover 2 having a structure of 2 or more engaging pieces 3 can be easily detached from the main cover 1.
The cover main body 20 has an engaging portion 4 that is rotatably engaged with an engaging portion 5 of the main cover 1, which is different from the engaging portion 7 with which 2 or more engaging pieces 3 are engaged, when the cover main body 20 is detached from the main cover 1. The engaging portion 7 is an example of the 1 st engaging portion, the engaging portion 5 is an example of the 2 nd engaging portion, and the engaging portion 4 is an example of the cover main body engaging portion. The engaging portion 4 is disposed at a position where the elastic portion 31 of the engaging piece 3 and the engaging portion 7 are close to each other when the cover main body 20 is detached from the main cover 1. This can increase the force for moving the cover main body 20 in the direction in which the attachment/detachment cover 2 is detached from the main cover 1. Therefore, the attachment/detachment cover 2 having a structure of 2 or more engaging pieces 3 can be easily detached from the main cover 1.
Further, the cover 100 includes: an accessory mounting/dismounting cover 2 having a cover main body 20 and 2 or more engaging pieces 3 and covering accessories of the air circuit breaker; and a main cover 1 for attaching the attachment/detachment cover 2. The accessory attaching/detaching cover 2 is an example of the 1 st cover, and the main cover 1 is an example of the 2 nd cover. This allows the cover 100 to be partially removed, and thus, the accessories can be easily replaced or added as compared with a case where the cover 100 is entirely removed.
The air circuit breaker cover according to embodiment 2 is different from the air circuit breaker cover according to embodiment 1 in that the engaging piece has a catch portion. Hereinafter, the same reference numerals are used to designate components having the same functions as those of embodiment 1, and the description thereof will be omitted, and the differences from cover 100 of embodiment 1 will be mainly described. Fig. 10 is a diagram showing an example of a cover of an air circuit breaker according to embodiment 2 of the present invention.
As shown in fig. 10, a cover 100A of an air circuit breaker according to embodiment 2 includes a main cover 1 and an accessory attaching/detaching cover 2A. The attachment/detachment cover 2A includes a cover main body 20 and an engagement piece 3A. The engaging piece 3A is different from the engaging piece 3 in that it has a grip portion 35, and the grip portion 35 is projected to the outside of the main cover 1 in a state where the main cover 1 is attached to the accessory attachment/detachment cover 2A and can be gripped by a finger of an operator. In addition, the accessory attaching/detaching cover 2A is provided with 2 or more engaging pieces 3A.
The proximal end of the grip 35 is continuous with the distal end of the elastic portion 31, and the distal end projects from the 2 nd front wall portion 16 in the state shown in fig. 10. The operator can release the engagement between the elastic portion 31 of the engagement piece 3A and the engagement portion 7 of the 2 nd front wall portion 16 by holding the grip portion 35 and moving it in the direction toward the cover main body 20. Further, in the accessory attaching/detaching cover 2A, the grip portion 35 is provided to each of the engaging pieces 3A, but the grip portion 35 may be provided to at least one of 2 or more engaging pieces 3A.
As described above, in the accessory attaching and detaching cover 2A of the cover 100A according to embodiment 2, at least one of the engaging pieces 3A of 2 or more engaging pieces 3A has the grasping portion 35 that bends the elastic portion 31. This makes it possible to easily release the engagement between the attachment/detachment cover 2A and the main cover 1. Therefore, the attachment/detachment cover 2A can be easily detached from the main cover 1.
The configuration described in the above embodiment is an example of the content of the present invention, and may be combined with other known techniques, and a part of the configuration may be omitted or modified without departing from the scope of the present invention.
Description of the reference numerals
The main cover 1, the auxiliary detachable cover 2, 2A, the engaging piece 3, 3A, the engaging part 4, 5, 7, the end part 8, the shape 9, the 1 st front wall part 11, the side wall parts 12, 13, 14, 15, 18, 19, 22, 23, the 2 nd front wall part 16, the fastening part 16a, 16b, 17a, 17b, 18a, the 3 rd front wall part 17, the cover body 20, the front wall part 21, the protruding part 24, the elastic part 31, the 1 st extending part 31a, the folded part 31b, the 2 nd extending part 31c, the protruding part 32, the guiding groove 33, the rib 34, the grasping part 35, the circular arc track 51, 52, the engaging surface 71, the inclined surface 72, the cover 100, 100A, the shell 200, the tool 300, the arrow A, B, C.
Claims (4)
1. A cover for an air circuit breaker, comprising:
a cover main body; and
more than or equal to 2 clamping sheets, the cantilever beams of which are supported on the cover main body and clamped with a clamping object in the air circuit breaker,
the 2 or more engaging pieces each have:
a V-shaped elastic portion having a base end supported by an end of the cover main body; and
and a protruding part which is arranged at the front end of the elastic part and is clamped with the clamping object.
2. The cover for an air circuit breaker according to claim 1,
at least one of the 2 or more engaging pieces has a grip portion that flexes the elastic portion.
3. Cover for air circuit breaker according to claim 1 or 2,
the cover body has a cover body engaging portion which is rotatably engaged with the cover body when the cover body is detached from the engagement object, at a 2 nd engaging portion different from a 1 st engaging portion with which the 2 or more engaging pieces of the engagement object are engaged,
the cover body engaging portion is disposed at a position where the elastic portion and the 1 st engaging portion are close to each other when the cover body is detached from the engagement object.
4. Cover for air circuit breaker according to any of claims 1 to 3,
comprising:
a 1 st cover having the cover main body and the 2 or more engaging pieces, and covering accessories of the air circuit breaker; and
and a 2 nd cover which is attached to the 1 st cover and is the engagement target.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2019/015206 WO2020202569A1 (en) | 2019-04-05 | 2019-04-05 | Air circuit breaker cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113632192A true CN113632192A (en) | 2021-11-09 |
| CN113632192B CN113632192B (en) | 2024-01-05 |
Family
ID=72666382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980094765.7A Active CN113632192B (en) | 2019-04-05 | 2019-04-05 | Cover for air circuit breaker |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7161034B2 (en) |
| CN (1) | CN113632192B (en) |
| TW (1) | TWI732468B (en) |
| WO (1) | WO2020202569A1 (en) |
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| CN201084662Y (en) * | 2007-08-10 | 2008-07-09 | 上海电器股份有限公司人民电器厂 | A shunt release used in double-break plastic-housing breakers |
| JP4935747B2 (en) | 2008-04-23 | 2012-05-23 | 富士電機機器制御株式会社 | Circuit breaker terminal cover |
| CN204335223U (en) * | 2012-08-31 | 2015-05-13 | 三菱电机株式会社 | Lid structure |
| TWI538607B (en) * | 2014-03-04 | 2016-06-11 | 鴻海精密工業股份有限公司 | Cover opening and closing mechanism |
| JP2015176650A (en) * | 2014-03-13 | 2015-10-05 | パナソニックＩｐマネジメント株式会社 | Switch cover and operation terminal unit |
| US9936595B2 (en) * | 2015-11-23 | 2018-04-03 | Thomson Licensing | Wire retention cover for printed circuit boards in an electronic device |
| TWM563722U (en) * | 2018-04-18 | 2018-07-11 | 美商定誼科技股份有限公司 | Lockable flip cover structure for electronic devices |
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2019
- 2019-04-05 JP JP2021511068A patent/JP7161034B2/en active Active
- 2019-04-05 CN CN201980094765.7A patent/CN113632192B/en active Active
- 2019-04-05 WO PCT/JP2019/015206 patent/WO2020202569A1/en active Application Filing
-
2020
- 2020-02-25 TW TW109106015A patent/TWI732468B/en active
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|---|---|---|---|---|
| JPS6139977U (en) * | 1984-08-16 | 1986-03-13 | 株式会社東芝 | Lid holding device |
| JPH11168807A (en) * | 1997-07-30 | 1999-06-22 | General Electric Co <Ge> | Programmer cover for breaker |
| CN2809989Y (en) * | 2005-06-02 | 2006-08-23 | 王研 | A wall-type automatic air circuit breaker base plate |
| JP2007088037A (en) * | 2005-09-20 | 2007-04-05 | Nec Viewtechnology Ltd | Mounting structure of cover |
| CN102136399A (en) * | 2010-01-27 | 2011-07-27 | 三菱电机株式会社 | Circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7161034B2 (en) | 2022-10-25 |
| CN113632192B (en) | 2024-01-05 |
| TW202038278A (en) | 2020-10-16 |
| JPWO2020202569A1 (en) | 2021-10-14 |
| TWI732468B (en) | 2021-07-01 |
| WO2020202569A1 (en) | 2020-10-08 |
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