CN113632192B - Cover for air circuit breaker - Google Patents
Cover for air circuit breaker Download PDFInfo
- Publication number
- CN113632192B CN113632192B CN201980094765.7A CN201980094765A CN113632192B CN 113632192 B CN113632192 B CN 113632192B CN 201980094765 A CN201980094765 A CN 201980094765A CN 113632192 B CN113632192 B CN 113632192B
- 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.)
- Active
Links
- 238000009751 slip forming Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
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
-
- 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
Abstract
The cover of the air circuit breaker has: a cover main body (20); and greater than or equal to 2 engaging pieces (3), wherein the cantilever beams are supported on the cover main body (20) and engaged with an engaging object in the air circuit breaker. And 2 or more engaging pieces (3) each having: a V-shaped elastic part (31) with a base end supported by 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 of an air circuit breaker configured to be detachable.
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 of providing a snap structure in a cover attached to a breaker main body so that the cover can be attached and detached.
Patent document 1: japanese patent laid-open No. 2009-266480
Disclosure of Invention
The air circuit breaker is capable of mounting accessories and has a structure capable of dismounting the cover from the breaker main body so that the accessories can be replaced or added after being arranged on the distribution board. In order to withstand the internal pressure of the gas generated during disconnection, the cover is generally fastened to the air circuit breaker main body by fastening members such as screws at a plurality of positions. Therefore, it is difficult to easily perform replacement or addition work of accessories.
When the cover for covering the accessories is configured by the buckle structure described in patent document 1, the replacement or addition of the accessories can be easily performed, but there is a possibility that the fixing strength against the gas internal pressure generated at the time of disconnection is insufficient. The present invention is not limited to the case where the accessory is covered, and the same applies to other cases where the internal pressure of the 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 that can have a fixed strength against the internal pressure of gas generated at the time of breaking and can be easily detached.
In order to solve the above problems and achieve the object, a cover of an air circuit breaker according to the present invention includes: a cover main body; and more than or equal to 2 clamping pieces, wherein the cantilever beams are supported on the cover main body and are clamped with a clamping object in the air circuit breaker. The greater than or equal to 2 engaging pieces each have:
a V-shaped elastic part, the base end of which is supported on the end of the cover main body; and a protruding part which is arranged at the front end of the elastic part and is engaged with the engaging object.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the present invention, the gas pressure sensor has an effect that the gas pressure sensor can be easily detached while having a fixed strength against the gas pressure generated at the time of disconnection.
Drawings
Fig. 1 is an external oblique 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 the air circuit breaker according to embodiment 1.
Fig. 3 is a diagram showing a case where the attachment/detachment cover according to embodiment 1 is detached from the main cover.
Fig. 4 is an external oblique view of an engaging piece of the attachment/detachment 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 removing the attachment/detachment cover according to embodiment 1 from the main cover.
Fig. 7 is a cross-sectional view for explaining the 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 attachment/detachment 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 engagement piece assuming that the rotation center exists on the housing side as compared with 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
The cover of the air circuit breaker according to the embodiment of the present invention will be described in detail below with reference to the drawings. The present invention is not limited to the present embodiment.
Embodiment 1.
Fig. 1 is an external oblique 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 the 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 mounted 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 case 200 is shown by a virtual line, but the shape of the case 200 is not limited to the example shown in fig. 1.
The main cover 1 further includes: a 1 st front wall 11 for disposing an on button, an off button, a display, and the like; and a plurality of side wall portions 12, 13, 14, 15, one end of which is continuous with the outer edge of the 1 st front wall portion 11, and extends from one end toward the other end toward the case 200 side. The main cover 1 further 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 separated 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 separated from the other end of the side wall portion 13.
The main cover 1 further 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 one end toward the other end toward the case 200; and a side wall 19 having one end continuous with the other end of the 3 rd front wall 17 and extending from one end toward the other end toward the case 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 18a. These fastening portions 16a, 16b, 17a, 17b, 18a and the housing 200 are fastened by screws. Accordingly, the main cover 1 is firmly fixed to the case 200, and a fixed strength against the gas internal pressure generated at the time of breaking the air circuit breaker can be ensured.
The attachment/detachment cover 2 includes: a cover main body 20 for covering accessories not shown; and 2 engagement pieces 3 cantilever-supported by the end of the cover main body 20. Further, the cover main 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 engaging portions 4. Further, accessories not shown are, for example, a voltage tripping device for disconnecting the air circuit breaker from a remote place, an insufficient voltage tripping device for disconnecting the air circuit breaker when the voltage of the circuit is lower than a reference value, and an auxiliary switch for electrically displaying the on or off state of the air circuit breaker.
The cover main body 20 has: a front wall portion 21 which is disposed in the cutout portion of the 1 st front wall portion 11 of the main cover 1 and is located on the same plane as the 1 st front wall portion 11; a side wall portion 22 having one end connected to the upper end of the front wall portion 21 and extending from one end toward the other end toward the case 200; and a side wall portion 23 having one end connected to one end of the front wall portion 21 and extending from one end toward the other end toward the case 200. The cover main body 20 has an extension 24, and one end of the extension 24 is continuous with the other end of the side wall 23, and extends in a direction parallel to the front wall 21 and away from the other end of the side wall 23. The extension 24 is located on the same plane as the 2 nd front wall portion 16.
Each engagement piece 3 has a snap-in structure. The attachment/detachment cover 2 is fixed to the main cover 1 by inserting a convex engagement portion, not shown, in the main cover 1 into a concave engagement portion 4 formed in the cover main body 20, and engaging the 2 nd front wall portion 16 of the main cover 1 with the 2 nd engagement pieces 3. Next, the engagement of the main cover 1 and the attachment/detachment cover 2 by the 2 engagement pieces 3 and the engagement portions 4 will be specifically described.
Fig. 3 is a diagram showing a case where the attachment/detachment cover according to embodiment 1 is detached from the main cover. Fig. 4 is an external oblique view of an engaging piece of the attachment/detachment 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 engagement between 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 released 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 having a base end supported by the other end of the protruding portion 24; and a pair of protruding portions 32 provided at positions apart from each other at the tip end portions of the elastic portions 31, and engaged with the 2 nd front wall portion 16.
The elastic portion 31 includes: a 1 st extension 31a having a base end supported by the other end of the extension 24 and extending from the base end toward the tip in a direction orthogonal to the extending direction of the extension 24; and a folded-back portion 31b whose base end is continuous with the front end of the 1 st extension portion 31a and is folded back toward the 2 nd front wall portion 16. The elastic portion 31 has a 2 nd extension portion 31c, and a base end of the 2 nd extension portion 31c is continuous with a distal end of the folded-back portion 31b and extends in a region opposed to the 1 st extension portion 31 a. The 2 nd extension portion 31c extends so as to be separated from the 1 st extension portion 31a as going from the base end toward the tip end in the direction opposite to the 1 st extension portion 31 a.
The engaging piece 3 further includes: a guide groove 33 that guides 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 at the central portion in the direction in which the pair of protruding portions 32 face each other, among the front end portions of the elastic portion 31.
As shown in fig. 5, an engaging portion 7 is provided at an end portion of the 2 nd front wall portion 16 opposite to the engaging piece 3. The engagement portion 7 includes: the surface on the housing 200 side is the engagement surface 71; and an inclined surface 72 formed on the 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 protruding portion 32 of the engaging piece 3 abuts against the engaging surface 71 of the engaging portion 7, and the protruding portion 32 of the engaging piece 3 is engaged with the engaging portion 7. This suppresses the removal of the attachment/detachment cover 2 from the main cover 1.
Further, the attachment/detachment cover 2 is engaged with the main cover 1 by the 2 engagement pieces 3, and thus is firmly fixed to the main cover 1, and can ensure a fixed strength against the gas internal pressure generated at the time of breaking of the air circuit breaker. The attachment/detachment cover 2 may have a structure having 3 or more engagement pieces 3. Further, since the fastening portion 16a is fixed to the housing 200 by the screws 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 gas internal pressure generated at the time of breaking the air circuit breaker. This can further ensure a fixed strength against the gas internal pressure generated at the time of breaking the air circuit breaker.
Next, a method of removing the attachment/detachment cover 2 from the main cover 1 will be described. Fig. 6 is a diagram for explaining a method of removing the attachment/detachment cover according to embodiment 1 from the main cover. As shown in fig. 6, in a state where the attachment/detachment cover 2 is attached to the main cover 1, the convex engaging portion 5 formed in the 1 st front wall portion 11 of the main cover 1 is inserted into the concave engaging portion 4 formed in 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, by inserting the tip of the tool 300 into the guide groove 33 shown in fig. 5 of the engaging piece 3, 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 engaging piece 3 is deflected, so that the protruding portion 32 of the engaging piece 3 is moved in the direction away from the engaging portion 7.
The attachment/detachment cover 2 is rotatable about the engagement portion 5 in a state where the pair of protruding portions 32 are separated from the engagement portion 7. By rotating the attachment/detachment cover 2 counterclockwise 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 engaging 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 the 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 attachment/detachment cover and the main cover according to embodiment 1 is released.
When the worker rotates the attachment/detachment cover 2 about the engagement portion 5 shown in fig. 6 in a state in which the elastic portion 31 of one engagement piece 3 is deflected by the tool 300, the attachment/detachment cover is brought into a state shown in fig. 7. In the state shown in fig. 7, the elastic portion 31 of one engagement piece 3 is in a state of being deflected by the engagement portion 7, and a force attempting to return to the original shape 9 shown by the virtual line, that is, a force toward the arrow a is generated in the elastic portion 31.
Further, 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 rail 51 centering 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 the direction approaching the inclined surface 72 as it moves in the direction of the arrow B. Therefore, the force of the elastic portion 31 that attempts to return to the original shape 9, that is, the force of the arrow a generated in the elastic portion 31 can be increased.
As described above, the engagement portion 7 is formed with the inclined surface 72, and in the state shown in fig. 7, the elastic portion 31 abuts against the inclined surface 72. Therefore, a force attempting to move in the direction of arrow B with the engagement portion 5 as a rotation center is generated by the inclined surface 72. The direction of arrow B is the direction in which the attachment/detachment cover 2 is detached from the main cover 1, out of the circular arc track 51 of the elastic portion 31 having the engagement portion 5 as the rotation center.
Therefore, even when the worker separates his/her hand from the attachment/detachment cover 2, the position of one engagement piece 3 is maintained at the position shown in fig. 7, and the worker does not return to the position shown in fig. 5 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 deflected, the attachment/detachment cover 2 moves in the direction of arrow B by the force generated in the one engagement piece 3 that tries to move in the direction of arrow B. As a result, 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 engagement pieces 3 from the main cover 1.
In addition, the cover 100 may be configured such 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 the one engagement piece 3 is shown in fig. 7. In this case, a force that tries to move in the direction of arrow B is also generated in one engagement piece 3. Therefore, the worker can reduce the force for moving the attachment/detachment cover 2 in the direction of the arrow B, and can easily detach the attachment/detachment cover 2 from the main cover 1.
Here, it is assumed that the rotation center is not the engagement 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 engaging piece, assuming that the rotation center is present on the housing side than the rotation center shown in fig. 6.
As shown in fig. 9, when the end 8 shown in fig. 6 becomes the rotation center of the attachment/detachment cover 2, the elastic portion 31 of the engaging piece 3 moves on the circular arc rail 52 centering on the end 8 shown in fig. 6. In this case, the elastic portion 31 of the engaging piece 3 moves in the direction separating from the inclined surface 72 along with the movement in the direction of the arrow C, and therefore the force generated in the direction of the 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 becomes the rotation center of the 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 of forming the engaging piece 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 that tries 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 to be provided with the engaging piece 3 and the engaging portion 4 is the attachment/detachment cover 2, but the engaging piece 3 and the engaging portion 4 are not limited to the attachment/detachment cover 2, and may be provided in a cover other than the attachment/detachment cover 2 to which the internal pressure of the gas generated at the time of disconnection is applied. The engaging object of the attachment/detachment cover 2 may be the case 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 thereto. 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 greater than or equal to 2 engaging pieces 3, the cantilever beams of which are supported by the cover main body 20 and engage with the main cover 1, which is an engaging object in the air circuit breaker. Each engaging piece 3 has: a V-shaped elastic portion 31 having a base end supported by an end portion of the cover main body 20; and a protruding portion 32 provided at the front end of the elastic portion 31 and engaged with the engagement object. As described above, the attachment/detachment cover 2 is engaged with the main cover 1 by the 2 engagement pieces 3, and is therefore firmly fixed to the main cover 1, and the fixing strength against the gas internal pressure generated at the time of breaking the air circuit breaker can be ensured. Further, the engaging piece 3 has a snap structure, and therefore, the attachment/detachment cover 2 can be easily 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 that tries to return to the original shape 9 increases, and the force that moves in the direction of removing the attachment/detachment cover 2 increases, so that the attachment/detachment cover 2 having a structure of 2 or more engaging pieces 3 can be easily removed from the main cover 1.
The cover main body 20 has an engaging portion 4 which is engaged rotatably when the cover main body 20 is detached from the main cover 1, in an engaging portion 5 which is different from the engaging portion 7 which engages with 2 or more engaging pieces 3 in 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 approaches the engaging portion 7 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 for removing the attachment/detachment cover 2 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.
In addition, the cover 100 has: an accessory attaching/detaching cover 2 having a cover main body 20 and 2 or more engaging pieces 3 for covering accessories of the air circuit breaker; and a main cover 1 to which the attachment/detachment cover 2 is attached. The attachment/detachment 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 allows accessories to be easily replaced or added as compared with the case where the cover 100 is removed entirely.
Embodiment 2.
The cover of the air circuit breaker according to embodiment 2 is different from the cover of the air circuit breaker according to embodiment 1 in that the engaging piece has a grip portion. The same reference numerals are given to the constituent elements having the same functions as those of embodiment 1, and description thereof will be omitted, focusing on differences from the cover 100 of embodiment 1. 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 attachment/detachment cover 2A. The attachment/detachment cover 2A includes a cover main body 20 and an engagement piece 3A. The engagement piece 3A differs from the engagement piece 3 in that it has a grip portion 35, and the grip portion 35 protrudes outward of the main cover 1 in a state where the attachment/detachment cover 2A is attached to the main cover 1, and can be gripped by an operator's finger. Further, 2 or more engaging pieces 3A are provided in the attachment/detachment cover 2A.
The base end of the grip portion 35 is continuous with the front end of the elastic portion 31, and the front end protrudes 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 grasping the grasping portion 35 and moving in the direction toward the cover main body 20. In the attachment/detachment cover 2A, the grip portion 35 is provided on each engagement piece 3A, but the grip portion 35 may be provided on at least one of the 2 or more engagement pieces 3A.
As described above, in the attachment/detachment cover 2A of the cover 100A according to embodiment 2, at least one engagement piece 3A of the 2 or more engagement pieces 3A has the grip portion 35 for flexing 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 shown in the above embodiment shows an example of the content of the present invention, and other known techniques may be combined, and a part of the configuration may be omitted or changed without departing from the scope of the present invention.
Description of the reference numerals
A main cover 1, a cover for attaching and detaching 2 and 2A, a 3, 3A engaging piece, a 4, 5, 7 engaging portion, an 8-end portion, a 9-shape, an 11 st front wall portion, 12, 13, 14, 15, 18, 19, 22, 23-side wall portion, a 16 nd front wall portion, 16a, 16b, 17a, 17b, 18a fastening portion, a 17 rd front wall portion, a 20 cover main body, a 21 front wall portion, a 24 extending portion, a 31 elastic portion, a 31a 1 st extending portion, a 31b folded portion, a 31c 2 nd extending portion, a 32 protruding portion, a 33 guiding groove, a 34 hooking rib, a 35 gripping portion, a 51, 52 circular arc rail, a 71 engaging surface, a 72 inclined surface, a 100, 100A cover, a 200 housing, a 300 tool, A, B, C arrow.
Claims (5)
1. An air circuit breaker cover, comprising:
a cover main body; and
more than or equal to 2 clamping pieces, which are respectively supported at one end of the cover main body by cantilever beams and are clamped with a clamping object in the air circuit breaker,
the greater than or equal to 2 engaging pieces each have:
a V-shaped elastic part, the base end of which is supported by the end of the cover main body; and
a pair of protruding parts which are arranged at the front ends of the elastic parts at positions separated from each other and are engaged with the engaging object,
at the front end of the elastic part, a hooking rib for hooking the front end of the tool and a guiding groove for guiding the front end of the tool to the hooking rib are formed at the central part of the pair of protruding parts opposite to each other,
the guide groove is continuously formed from an end surface of the front end of the elastic portion to the hooking rib.
2. The cover of an air circuit breaker according to claim 1, wherein,
at least one of the greater than or equal to 2 engaging pieces has a grip portion that deflects the elastic portion.
3. The cover of an air circuit breaker according to claim 1 or 2, characterized in that,
the cover body has a cover body engaging portion which is rotatably engaged with a 2 nd engaging portion when the cover body is detached from the engaging object, the 2 nd engaging portion being different from a 1 st engaging portion in which the greater than or equal to 2 engaging pieces of the engaging object are engaged,
the cover body engagement portion is disposed at a position such that the elastic portion is brought close to the 1 st engagement portion when the cover body is detached from the engagement object.
4. The cover of an air circuit breaker according to claim 1 or 2, characterized in that,
the device comprises:
a 1 st cover having the cover main body and the greater than or equal to 2 engaging pieces, covering accessories of the air circuit breaker; and
and a 2 nd cover, which is the engaging object and is attached to the 1 st cover.
5. A cover for an air circuit breaker according to claim 3 wherein,
the device comprises:
a 1 st cover having the cover main body and the greater than or equal to 2 engaging pieces, covering accessories of the air circuit breaker; and
and a 2 nd cover, which is the engaging object and is attached to the 1 st cover.
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 CN113632192A (en) | 2021-11-09 |
| CN113632192B true 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) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2019
- 2019-04-05 JP JP2021511068A patent/JP7161034B2/en active Active
- 2019-04-05 WO PCT/JP2019/015206 patent/WO2020202569A1/en active Application Filing
- 2019-04-05 CN CN201980094765.7A patent/CN113632192B/en active Active
-
2020
- 2020-02-25 TW TW109106015A patent/TWI732468B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JPWO2020202569A1 (en) | 2021-10-14 |
| TWI732468B (en) | 2021-07-01 |
| CN113632192A (en) | 2021-11-09 |
| WO2020202569A1 (en) | 2020-10-08 |
| TW202038278A (en) | 2020-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0744886A1 (en) | Structure for holding switching board in small size electronic appliance | |
| CN113632192B (en) | Cover for air circuit breaker | |
| CN113433623A (en) | Tool for connector plug, and cable with connector plug | |
| RU2225666C1 (en) | Device for fastening electrical apparatus on locating guide and electrical apparatus equipped with such device (alternatives) | |
| KR20020090886A (en) | Attached terminal board of circuit breaker | |
| US20100018847A1 (en) | Trigger switch | |
| CN102136399A (en) | Circuit breaker | |
| CN101055822A (en) | Circuit breaker | |
| JP2003317865A (en) | Separation structure of connector and connector separation fixture | |
| CN112003044B (en) | Locking structure of terminal table cover | |
| JP2002353698A (en) | Electronic component mounter | |
| JP3875747B2 (en) | Electric component holder and its fixing mechanism | |
| JP2007032810A (en) | Clamping mechanism | |
| KR100387533B1 (en) | Fuse installation and pull out tool | |
| JP6887319B2 (en) | Power supply systems, power tool systems, and power tools | |
| US11086204B2 (en) | Imaging device, and mounting/removing mechanism for imaging device | |
| KR101382824B1 (en) | Switch assembly | |
| KR200409204Y1 (en) | Fixing structure of bracket for junction box | |
| EP0159556A3 (en) | An adapter, particularly intended for an electrical contact rail | |
| CN111565537B (en) | Electronic device | |
| JP4983443B2 (en) | Terminal device for electrical equipment and electromagnetic contactor | |
| EP4215314A1 (en) | Electric working machine | |
| KR200361438Y1 (en) | structure for display case | |
| JPH06134149A (en) | Hair cutter | |
| JPH07326275A (en) | Terminal device for switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |