CN102136399A - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- CN102136399A CN102136399A CN2010101995502A CN201010199550A CN102136399A CN 102136399 A CN102136399 A CN 102136399A CN 2010101995502 A CN2010101995502 A CN 2010101995502A CN 201010199550 A CN201010199550 A CN 201010199550A CN 102136399 A CN102136399 A CN 102136399A
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- CN
- China
- Prior art keywords
- concavity
- circuit
- terminal cover
- roughly
- breaker
- 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
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Abstract
The invention discloses a circuit breaker, which solves the problems that a terminal cover is troublesome to uninstall and the terminal cover is easy to tilt. The circuit breaker in the invention comprises a circuit breaker main body with a concave-shaped part provided with a first concave-shaped wall part and a second concave-shaped wall part, and the terminal cover provided with a nearly U-shaped hook part imbedded in the concave-shaped part on the circuit breaker main body. The base of the nearly U-shaped hook part is located on the first concave-shaped wall part side of the concave-shaped part while the flexible part is located on the second concave-shaped wall part side of the concave-shaped part. Furthermore, the base of the nearly U-shaped hook part is provided with a projection which is clamped to a locking part equipped on the first concave-shaped wall part of the concave-shaped part.
Description
Technical field
The present invention relates to a kind of circuit-breaker, especially, relate to following circuit-breaker, it utilizes the roughly elastic force of the hook portion of U word shape, make on the terminal cover that is arranged on circuit-breaker rubber-like roughly the hook portion of U word shape and this hook portion engage with the holding section of circuit-breaker main body, thereby the terminal cover is installed on the circuit-breaker main body.
Background technology
For example, as existing circuit-breaker, there is structure shown in Figure 6.Fig. 6 is the side cutaway view of the existing circuit-breaker of expression.In Fig. 6, the 1st, the circuit-breaker main body is formed with concavity portion 2.In the 1st concavity wall portion 3 of circuit-breaker main body 1 side of concavity portion 2, be provided with fastener 4.In addition, the opposition side of the circuit-breaker main body 1 of concavity portion 2, that is, the 2nd concavity wall portion 5 of terminal screw 6 sides forms plane.
The 21st, be used to prevent terminal screw 6 be that charging part is exposed to the outside, by the terminal cover of non-conductive material moulding such as plastics, below the wallboard 22 of this terminal cover 21, be provided with and be used to through hole 23 that not shown connection electric wire is passed through.
In addition, terminal cover 21 is provided with the hook portion 24 with the integrally formed roughly U word shape of wallboard 22.Roughly the base portion 24a of the hook portion 24 of U word shape is positioned at the 2nd concavity wall portion 5 sides of concavity portion 2, and roughly the 24b of flexible portion of the hook portion 24 of U word shape is positioned at the 1st concavity wall portion 3 sides of concavity portion 2.And, on the 24b of flexible portion of the hook portion 24 of U word shape roughly, be provided be arranged on the 1st concavity wall portion 3 on the raised body 25 that engages of fastener 4.In addition, roughly the 24b of flexible portion deflection in mobile space portion 26 of the hook portion 24 of U word shape is moved.
The state that the hook portion 24 that Fig. 6 represents to be arranged on the roughly U word shape on the terminal cover 21 and the concavity portion of circuit-breaker main body 12 are chimeric, shown in C portion, the raised body 25 that is arranged on the 24b of flexible portion of the hook portion 24 of U word shape roughly engages with fastener 4 on being arranged on the 1st concavity wall portion 3, and terminal cover 21 can not extracted from the concavity portion 2 of circuit-breaker main body 1.
Constitute with terminal cover 21 when circuit-breaker main body 1 is pulled down, under the state of the main body that keeps terminal cover 21 with a hand, the another hand utilize instrument such as screwdriver or manually roughly the leading section of the 24b of flexible portion of the hook portion 24 of U word shape push to the arrow directions X, make its deflection shown in double dot dash line, remove the raised body 25 on the 24b of flexible portion be arranged on the hook portion 24 of U word shape roughly and be arranged on fastening state between the fastener 4 in the 1st concavity wall portion 3 of circuit-breaker main body 1.Then, having removed the raised body 25 on the 24b of flexible portion that is arranged at the hook portion 24 of U word shape roughly and being arranged under the state of the fastening state between the fastener 4 in the 1st concavity wall portion 3 of circuit-breaker main body 1, terminal cover 21 is extracted to arrow Y direction with a hand.(for example, with reference to patent documentation 1) patent documentation 1: Japanese kokai publication sho 59-90372 communique
Summary of the invention
In above-mentioned available circuit circuit breaker, owing to constitute when pulling down the terminal cover, under the state of the main body that keeps terminal cover 21 with a hand, the another hand utilize instrument such as screwdriver or manually roughly the leading section of the 24b of flexible portion of the hook portion 24 of U word shape push to the arrow directions X, and make its deflection, removing the raised body 25 on the 24b of flexible portion that is arranged at the hook portion 24 of U word shape roughly and be arranged under the state of the fastening state between the fastener 4 in the 1st concavity wall portion 3 of circuit-breaker main body 1, with a hand terminal cover 21 is extracted to arrow Y direction, so need two manual tasks, have the problem of dismounting trouble.
In addition, under the state that terminal cover 21 is installed on the circuit-breaker main body 1, there is following problem, that is,, then connects electric wire and terminal cover 21 is upwards pushed and made its perk if will lift with the not shown electric wire that is connected of circuit-breaker wiring.
The present invention proposes in order to solve above-mentioned problem, and its purpose is, a kind of circuit-breaker is provided, and tool using just can not pulled down the terminal cover simply.
In addition, the objective of the invention is to, a kind of circuit-breaker is provided,, also can suppress the perk of terminal cover even it will lift with the electric wire that is connected of circuit-breaker wiring.
Circuit-breaker involved in the present invention has: the circuit-breaker main body, and it is formed with concavity portion, and this concavity portion has the 1st concavity wall portion and the 2nd concavity wall portion; And terminal cover, it has the hook portion with the chimeric roughly U word shape of the described concavity portion on the described circuit-breaker main body of being formed on, the base portion of the hook portion of described roughly U word shape is positioned at described the 1st concavity wall portion side of described concavity portion, the flexible portion of the hook portion of described roughly U word shape is positioned at described the 2nd concavity wall portion side of described concavity portion, and on the base portion of the hook portion of described roughly U word shape, be provided with the raised body that engages with fastener in described the 1st concavity wall portion that is arranged on described concavity portion.
The effect of invention
Circuit-breaker involved in the present invention, by making the base portion of the hook portion of U word shape roughly be positioned at the 1st concavity wall portion side of the concavity portion of circuit-breaker main body, make the flexible portion of the hook portion of U word shape roughly be positioned at the 2nd concavity wall portion side of the concavity portion of circuit-breaker main body, can obtain the circuit-breaker that simply the terminal cover to be pulled down.
In addition, even can obtain and to lift with the electric wire that is connected of circuit-breaker wiring, also can suppress the circuit-breaker of the perk of terminal cover.
Description of drawings
Fig. 1 is the oblique view of the terminal cover in the related circuit-breaker of expression embodiments of the present invention 1.
Fig. 2 is the side cutaway view that the terminal cover perk in the related circuit-breaker of expression embodiments of the present invention 1 is suppressed.
Fig. 3 is the side cutaway view of the related circuit-breaker of expression embodiments of the present invention 1.
Fig. 4 is the side cutaway view of the terminal cover in the related circuit-breaker of expression embodiments of the present invention 1.
Fig. 5 is the elevation cross-sectional view of the related circuit-breaker of expression embodiments of the present invention 2.
Fig. 6 is the side cutaway view of the existing circuit-breaker of expression.
Embodiment
Below, based on Fig. 1 to Fig. 4, embodiments of the present invention 1 are described.Fig. 1 is the oblique view of the terminal cover in the related circuit-breaker of expression embodiments of the present invention 1, is the figure of the shape of the expression terminal cover that is provided with hook portion, and this hook portion has elasticity, is U word shape roughly.Fig. 2 is the side cutaway view that the perk of the terminal cover in the related circuit-breaker of expression embodiments of the present invention 1 is suppressed, even lifting of the connection electric wire that is used for connecting passing through applies the structure that external force also can suppress the perk of terminal cover and carry out diagram.Fig. 3 is the side cutaway view of the related circuit-breaker of expression embodiments of the present invention 1, is used for state that the terminal cover is engaged with the circuit-breaker main body and the method pulled down under this state is carried out diagram.Fig. 4 is the side cutaway view of the terminal cover in the related circuit-breaker of expression embodiments of the present invention 1, the shape of the hook portion of the roughly U word shape that is used to represent that the terminal cover is had.
In above-mentioned each figure, the 1st, the circuit-breaker main body is formed with concavity portion 2.In the 1st concavity wall portion 3 of circuit-breaker main body 1 side of concavity portion 2, be provided with fastener 4.In addition, the opposition side of the circuit-breaker main body 1 of concavity portion 2, that is, the 2nd concavity wall portion 5 of terminal screw 6 sides becomes plane.
The 11st, be used to prevent terminal screw 6 be that charging part is exposed to the outside, by the terminal cover of non-conductive material moulding such as plastics, below the wallboard 12 of this terminal cover 11, be provided with to be used to make and connect the through hole 13 that electric wire 7 passes through.
In addition, terminal cover 11 is provided with the hook portion 14 with the integrally formed roughly U word shape of wallboard 12.Roughly the base portion 14a of the hook portion 14 of U word shape is positioned at the 1st concavity wall portion 3 sides of concavity portion 2, and roughly the 14b of flexible portion of the hook portion 14 of U word shape is positioned at the 2nd concavity wall portion 5 sides of concavity portion 2.
And, on the base portion 14a of the hook portion 14 of U word shape roughly, be provided be arranged on the 1st concavity wall portion 3 on the raised body 15 that engages of fastener 4.In addition, roughly the 14b of flexible portion deflection in mobile space portion 16 of the hook portion 14 of U word shape is moved.
In addition, roughly the 14b of flexible portion of the hook portion 14 of U word shape constitutes, and the wall thickness of root B is thicker, and the wall thickness of leading section D is thinner.
As shown in Figure 2, terminal cover 11 in the embodiments of the present invention 1 adopts following structure, promptly, in the direction pull-up of the connection electric wire 7 that will utilize terminal screw 6 wiring to arrow F, when applying the external force that makes 11 perks of terminal cover, terminal cover 11 will be the direction perk of pivot to arrow G with A portion, but roughly the 2nd concavity wall portion 5 of the concavity portion 2 of the B portion of the root of the 14b of flexible portion of the hook portion 14 of U word shape and circuit-breaker main body 1 interferes, and suppresses the perk of terminal cover 11.Therefore, in order to be difficult to deflection and to show rigidity, roughly the B portion of the root of the 14b of flexible portion of the hook portion 14 of U word shape forms the thicker shape of wall thickness.
As shown in Figure 3; the terminal cover 11 of the hook portion 14 of U word shape constitutes in embodiments of the present invention 1 related having band elasticity and be roughly; the raised body 15 that constitutes by claw shape that is used to engage by configuration in the minimum position C portion of the deflection of the base portion 14a of the hook portion 14 of U word shape roughly; in addition; at opposition side; the bigger D portion of leading section configuration deflection at the 14b of flexible portion of the hook portion 14 of U word shape roughly; thus; if terminal cover 11 is filled on the circuit-breaker main body 1; then the elasticity by D portion is fixed the engaging of C portion, charging part such as protection terminal screw 6.
When under this state, pulling down terminal cover 11, keep terminal cover 11 with hand, under this state, only terminal cover 11 is slided to arrow H direction, just can shown in double dot dash line, make terminal cover 11 and roughly the base portion 14a of the hook portion 14 of U word shape move to arrow H direction, remove the holding section of C portion, terminal cover 11 is pulled down.
As shown in Figure 4, terminal cover 11 in the embodiments of the present invention 1 constitutes, in order to be difficult to deflection and to show rigidity, the B portion of the root of the 14b of flexible portion of the hook portion 14 of U word shape forms the thicker shape of wall thickness and make roughly, by making i.e. the 2nd concavity wall portion 5 butts of the concavity portion 2 of the B portion of the root of the 14b of flexible portion of the hook portion 14 of U word shape and circuit breaker main body 1 roughly in the minimum position of deflection, can suppress the perk of terminal cover 11.
And, the wall thickness of the D portion of the leading section of the 14b of flexible portion of the hook portion 14 of U word shape is made as thinner by inciting somebody to action roughly, make the bigger position of deflection, i.e. the 2nd concavity wall portion 5 butts of the concavity portion 2 of the D portion of the leading section of the 14b of flexible portion of the hook portion 14 of U word shape and circuit-breaker main body 1 roughly, thus, terminal cover 11 is fixed on the circuit-breaker main body 1.When under this state, pulling down terminal cover 11, keep terminal cover 11 with hand, terminal cover 11 is slided to arrow H direction, the holding section that just can remove C portion is pulled down terminal cover 11 simply.
As noted above, according to present embodiment 1, keep terminal cover 11 with hand, terminal cover 11 is slided to arrow H direction, just can remove the holding section of C portion, thereby need not to use instruments such as screwdriver, a hand just can be pulled down terminal cover 11 simply.
In addition, owing to be arranged on the 2nd concavity wall portion 5 butts of the concavity portion 2 of the B portion of root of the 14b of flexible portion of hook portion 14 of the roughly U word shape on the terminal cover 11 and circuit-breaker main body 1, and stop the rotation of terminal cover 11, so can suppress because of with the perk that is connected the terminal cover 11 that lifting of electric wire 7 cause of circuit-breaker main body 1 wiring.
Based on Fig. 5, embodiments of the present invention 2 are described.Fig. 5 is the elevation cross-sectional view of the related circuit-breaker of expression embodiments of the present invention 2.
As shown in Figure 5, hook portion 14 owing to the roughly U word shape on the terminal cover 11 that is arranged on embodiments of the present invention 2, with be that concavity portion 2 between the terminal screw 6 is chimeric and engage between the terminal of circuit-breaker main body 1, so under situation about being installed on the circuit-breaker main body 1 of this 3 utmost points, be configured on the off-centered position.
As shown in Figure 5, hook portion 14 owing to the roughly U word shape on the terminal cover 11 that is arranged on embodiments of the present invention 2, be configured on the off-centered position, so when terminal cover 11 is pulled down to the slip of arrow H direction, power acts on unevenly, the tendency that existence can't be slided as the crow flies, thereby in order to slide as the crow flies, and guide body 17 is set on terminal cover 11, it is used for respect to sliding part 18 slips of motor-operted switch main body 1 and terminal cover 11 is slided as the crow flies.
As noted above, owing to, can slide, by these sliding part 18 guiding guide body 17 with respect to the sliding part 18 of circuit-breaker main body 1 by guide body 17 is set on terminal cover 11, terminal cover 11 is slided as the crow flies, so can more easily carry out the dismounting of terminal cover 11.
Industrial applicibility
The present invention is applicable to that realization can pull down terminal cover simply, and can suppress the circuit-breaker of the perk of terminal cover.
Claims (4)
1. a circuit-breaker is characterized in that,
Have: circuit-breaker main body (1), it is formed with concavity portion (2), and this concavity portion (2) has the 1st concavity wall portion (3) and the 2nd concavity wall portion (5); And terminal cover (11), it has the hook portion (14) with the chimeric roughly U word shape of the described concavity portion (2) on the described circuit-breaker main body (1) of being formed on, the base portion (14a) of the hook portion (14) of described roughly U word shape is positioned at described the 1st concavity wall portion (3) side of described concavity portion (2), the flexible portion (14b) of the hook portion (14) of described roughly U word shape is positioned at described the 2nd concavity wall portion (5) side of described concavity portion (2), and on the base portion (14a) of the hook portion (14) of described roughly U word shape, be provided with the raised body (15) that engages with fastener (4) in described the 1st concavity wall portion (3) that is arranged on described concavity portion (2).
2. circuit-breaker according to claim 1 is characterized in that,
By described terminal cover (11) is slided, and make flexible portion (14b) deflection of the hook portion (14) of described roughly U word shape, remove engaging between the fastener (4) in described raised body (15) and described the 1st concavity wall portion (3) that is arranged on described concavity portion (2), described terminal cover (11) is pulled down from described circuit-breaker main body (1).
3. circuit-breaker according to claim 1 and 2 is characterized in that,
The wall thickness of the root of the flexible portion (14b) of the hook portion (14) of described roughly U word shape is thicker, and the wall thickness of leading section is thinner.
4. circuit-breaker according to claim 2 is characterized in that,
Described terminal cover (11) is provided with can be with respect to the guide body (17) of described circuit-breaker main body (1) slip.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-015547 | 2010-01-27 | ||
| JP2010015547A JP5355438B2 (en) | 2010-01-27 | 2010-01-27 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102136399A true CN102136399A (en) | 2011-07-27 |
| CN102136399B CN102136399B (en) | 2014-04-23 |
Family
ID=44296147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010199550.2A Expired - Fee Related CN102136399B (en) | 2010-01-27 | 2010-06-10 | Circuit breaker |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5355438B2 (en) |
| CN (1) | CN102136399B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293454A (en) * | 2016-04-13 | 2017-10-24 | 富士电机机器制御株式会社 | Circuit-breaker |
| CN113632192A (en) * | 2019-04-05 | 2021-11-09 | 三菱电机株式会社 | Cover of air circuit breaker |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103503523B (en) | 2011-07-13 | 2018-01-23 | 太阳专利信托公司 | terminal device and transmission method |
| JP6710109B2 (en) * | 2016-06-14 | 2020-06-17 | 河村電器産業株式会社 | Circuit breaker |
| JP7178581B2 (en) * | 2018-03-20 | 2022-11-28 | パナソニックＩｐマネジメント株式会社 | Feed terminal cover and distribution board |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5990372A (en) * | 1982-11-12 | 1984-05-24 | 三菱電機株式会社 | Terminal cover unit for electric device |
| JPS62129747U (en) * | 1986-02-10 | 1987-08-17 | ||
| JP2002163972A (en) * | 2000-11-27 | 2002-06-07 | Matsushita Electric Works Ltd | Terminal cover device of switch |
| JP3664073B2 (en) * | 2000-11-27 | 2005-06-22 | 松下電工株式会社 | Terminal cover device for switch |
| CN1963975A (en) * | 2005-11-07 | 2007-05-16 | 富士电机机器制御株式会社 | Relay terminal device of circuit breaker |
| JP2007280863A (en) * | 2006-04-11 | 2007-10-25 | Tempearl Ind Co Ltd | Terminal cover and terminal cover mounting method |
| DE602005006814D1 (en) * | 2005-09-29 | 2008-06-26 | Hager Electro Sas | Clamping screw cover with a device for controlling the fastening of the screws |
| JP2008153029A (en) * | 2006-12-15 | 2008-07-03 | Sharp Corp | Terminal cover fall-off prevention structure and electronic equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0110838Y2 (en) * | 1981-04-15 | 1989-03-29 | ||
| JPH0416342Y2 (en) * | 1986-08-13 | 1992-04-13 | ||
| JPH081552Y2 (en) * | 1986-08-25 | 1996-01-17 | 株式会社東芝 | Circuit and breaker terminal cover |
-
2010
- 2010-01-27 JP JP2010015547A patent/JP5355438B2/en not_active Expired - Fee Related
- 2010-06-10 CN CN201010199550.2A patent/CN102136399B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5990372A (en) * | 1982-11-12 | 1984-05-24 | 三菱電機株式会社 | Terminal cover unit for electric device |
| JPS62129747U (en) * | 1986-02-10 | 1987-08-17 | ||
| JP2002163972A (en) * | 2000-11-27 | 2002-06-07 | Matsushita Electric Works Ltd | Terminal cover device of switch |
| JP3664073B2 (en) * | 2000-11-27 | 2005-06-22 | 松下電工株式会社 | Terminal cover device for switch |
| DE602005006814D1 (en) * | 2005-09-29 | 2008-06-26 | Hager Electro Sas | Clamping screw cover with a device for controlling the fastening of the screws |
| CN1963975A (en) * | 2005-11-07 | 2007-05-16 | 富士电机机器制御株式会社 | Relay terminal device of circuit breaker |
| JP2007280863A (en) * | 2006-04-11 | 2007-10-25 | Tempearl Ind Co Ltd | Terminal cover and terminal cover mounting method |
| JP2008153029A (en) * | 2006-12-15 | 2008-07-03 | Sharp Corp | Terminal cover fall-off prevention structure and electronic equipment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293454A (en) * | 2016-04-13 | 2017-10-24 | 富士电机机器制御株式会社 | Circuit-breaker |
| CN107293454B (en) * | 2016-04-13 | 2019-05-10 | 富士电机机器制御株式会社 | Circuit-breaker |
| CN113632192A (en) * | 2019-04-05 | 2021-11-09 | 三菱电机株式会社 | Cover of air circuit breaker |
| CN113632192B (en) * | 2019-04-05 | 2024-01-05 | 三菱电机株式会社 | Cover for air circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5355438B2 (en) | 2013-11-27 |
| CN102136399B (en) | 2014-04-23 |
| JP2011154885A (en) | 2011-08-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 |