CN213304032U - Low-voltage circuit breaker - Google Patents
Low-voltage circuit breaker Download PDFInfo
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- CN213304032U CN213304032U CN202022651753.2U CN202022651753U CN213304032U CN 213304032 U CN213304032 U CN 213304032U CN 202022651753 U CN202022651753 U CN 202022651753U CN 213304032 U CN213304032 U CN 213304032U
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- protective housing
- circuit breaker
- voltage circuit
- fixedly connected
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Abstract
The utility model discloses a low-voltage circuit breaker, including the protective housing, the inside of protective housing is equipped with the protective housing, the inner wall fixedly connected with circuit-breaking control unit of protective housing, the louvre that the equidistance was arranged is all seted up to the left and right sides face of protective housing, the equal two sets of symmetrical fixed plates of fixedly connected with of the left and right sides face of protective housing, two first backup pads of inside wall fixedly connected with of protective housing, every the equal fixed inlaying in bottom surface of first backup pad has first bearing, a set of symmetrical spout, every have been seted up to the inside wall of protective housing the equal joint in inside of spout has the slider. This low-voltage circuit breaker, through threaded rod, the screw hole that sets up, utilize threaded connection between threaded rod and the screw hole to drive the second backup pad and remove, through the cooperation with the fixed plate, effectually press from both sides tight fixed to the fixed plate, and then realize the fastening to the protective housing, for the staff to the installation of circuit breaker with dismantle and provide convenience.
Description
Technical Field
The utility model belongs to the technical field of the circuit breaker, especially, relate to low-voltage circuit breaker.
Background
The low-voltage circuit breaker called automatic switch not only can switch on and break normal load current and overload current, but also can switch on and break short-circuit current, besides the control function, the low-voltage circuit breaker also has certain protection function, such as overload, short circuit, undervoltage and leakage protection, etc. in the circuit operation process, the circuit breaker is often needed to carry out power-off protection on the used electric appliance, the existing low-voltage circuit breaker is inconvenient to install when in use, and does not have the cooling function, the heating phenomenon is easy to generate when in use, the damage of the low-voltage circuit breaker is caused to influence the service life of the circuit breaker, therefore, the low-voltage circuit breaker is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a, aim at solving above-mentioned current low voltage circuit breaker inconvenient installation when using of existence, do not have the cooling function moreover, produce the phenomenon of generating heat easily during the use, cause low voltage circuit breaker's harm to influence circuit breaker life's problem.
The utility model is realized in such a way, the low-voltage circuit breaker comprises a protective box, wherein the protective box is internally provided with a protective shell, the inner wall of the protective shell is fixedly connected with a circuit breaking control unit, the left side surface and the right side surface of the protective shell are respectively provided with heat dissipation holes which are arranged at equal intervals, the left side surface and the right side surface of the protective shell are respectively fixedly connected with two groups of symmetrical fixed plates, the inner side wall of the protective box is fixedly connected with two first supporting plates, the bottom surface of each first supporting plate is fixedly embedded with a first bearing, the inner side wall of the protective box is provided with a group of symmetrical chutes, each chute is internally provided with a sliding block in a clamping way, one side surface, which is close to each other, of the two sliding blocks is respectively fixedly connected with a second supporting plate, the bottom surface of each second, two the top of threaded rod run through two screw holes respectively and with the inner circle fixed connection of two first bearings, two sets of through wires holes have all been seted up to the upper surface of protective housing and the bottom surface of protective housing, the left and right sides face of protective housing all is fixed to be inlayed and is had the fan.
Preferably, a rotating wheel is arranged below each threaded rod, and the upper surface of each rotating wheel is fixedly connected with the bottom end of each threaded rod.
Preferably, the left side of protective housing is equipped with the warning subsides, the right flank of warning subsides and the left surface fixed connection of protective housing.
Preferably, the left side and the right side of the protection box are both provided with handrails, and one ends of the two handrails, which are close to each other, are fixedly connected with the left side surface and the right side surface of the protection box respectively.
Preferably, the left and right sides of protective housing all is equipped with two mounting panels, and is two sets of a side that the mounting panel is close to each other is respectively with the left and right sides face fixed connection of protective housing.
Preferably, the left side and the right side of the protective housing are both provided with filter plates, and one side face, close to each other, of the two filter plates is fixedly connected with the left side face and the right side face of the protective housing respectively.
Preferably, the left side face and the right side face of the protection box are both provided with ventilation holes which are arranged at equal intervals, and the ventilation holes are located below the fan.
Compared with the prior art, the beneficial effects of the utility model, through the fan that sets up, can utilize fan work, blow to the protective housing, through the cooperation with the louvre, make the inside of the convenient entering protective housing of cool wind, effectually cool down to the control unit, avoid control unit high temperature, cause the damage of circuit breaker, threaded rod through setting up, the screw hole, can utilize threaded connection between threaded rod and the screw hole to drive the second backup pad and remove, through the cooperation with the fixed plate, effectually press from both sides tight fixed to the fixed plate, and then realize the fastening to the protective housing, facilitate for the staff to the installation and the dismantlement of circuit breaker.
Drawings
Fig. 1 is a sectional view of the front view of the protective shell of the present invention;
FIG. 2 is a cross-sectional view of the front view of the protective box of the present invention;
fig. 3 is a side view of the protection box of the present invention.
In the figure: 1. a protective box; 2. threading holes; 3. a circuit breaking control unit; 4. a warning label; 5. a first support plate; 6. a filter plate; 7. a threaded rod; 8. a fixing plate; 9. a threaded hole; 10. a second support plate; 11. a rotating wheel; 12. a slider; 13. a chute; 14. heat dissipation holes; 15. a vent hole; 16. a fan; 17. a handrail; 18. mounting a plate; 19. a first bearing; 20. a protective shell.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-3, the low-voltage circuit breaker includes a protection case 1, a protection case 20 is disposed inside the protection case 1, a circuit breaking control unit 3 is fixedly connected to an inner wall of the protection case 20, heat dissipation holes 15 are formed in left and right side surfaces of the protection case 20, two sets of symmetrical fixing plates 8 are fixedly connected to left and right side surfaces of the protection case 20, two first support plates 5 are fixedly connected to an inner side wall of the protection case 1, a first bearing 19 is fixedly embedded in a bottom surface of each first support plate 5, a set of symmetrical sliding grooves 13 are formed in an inner side wall of the protection case 1, a sliding block 12 is clamped inside each sliding groove 13, a second support plate 10 is fixedly connected to a side surface of each sliding block 12 close to each other, a threaded hole 9 is formed in a bottom surface of each second support plate 10, two threaded rods 7 adapted to the threaded hole 9 are disposed, two threaded holes 9 are run through respectively and two first bearing 19's inner circle fixed connection with two threaded rod 7's top, and two sets of through wires hole 2 have all been seted up to the upper surface of protective housing 1 and protective housing 1's bottom surface, and the left and right sides face of protective housing 1 all is fixed to be inlayed and has had fan 16.
The utility model discloses in, the below of every threaded rod 7 all is equipped with runner 11, the upper surface of every runner 11 all with the bottom fixed connection of threaded rod 7, can make the rotation threaded rod 7 that the staff is more convenient, it is fixed to be convenient for realize pressing from both sides tight the protective housing 20, the left side of protective housing 1 is equipped with warning subsides 4, the right flank of warning subsides 4 and protective housing 1's left surface fixed connection, can warn the non-staff, avoid non-staff's touching protective housing 1 to cause the emergence of dangerous accident, the left and right sides of protective housing 1 all is equipped with handrail 17, the one end that two handrail 17 are close to each other respectively with protective housing 1's left and right sides face fixed connection, can make the easier control protective housing 1 of staff, the fixed of protective housing 1 of being convenient for.
The left and right sides of protective housing 1 all is equipped with two mounting panels 18, the side that two sets of mounting panels 18 are close to each other respectively with protective housing 1's left and right sides face fixed connection, can make the staff easier fix protective housing 1, facilitate for staff's work, the left and right sides of protective housing 20 all is equipped with filter 6, the side that two filter 6 are close to each other respectively with protective housing 20's left and right sides face fixed connection, can block the outside dust of protective housing 20, avoid the dust to carry out the inside of protective housing 20, cause the damage of circuit breaking control unit 3, ventilation hole 14 that the equidistance was arranged is all seted up to protective housing 1's the left and right sides face, ventilation hole 14 is located fan 16's below, can effectively increase protective housing 1's air circulation, be convenient for realize the inside cooling of protective housing 20.
The utility model discloses a theory of operation is: when the protective case is used, firstly, the protective case 1 is moved to a position needing to be installed by holding the armrest 17, the protective case 1 is fixedly installed through the installation plate 18, then, the protective case 20 and the circuit-breaking control unit 3 are placed in the protective case 1, then, the rotating wheel 11 is rotated to drive the threaded rod 7 to rotate, the second support plate 10 is driven to move through the threaded connection between the threaded rod 7 and the threaded hole 9 and through the matching of the threaded rod 7 and the sliding groove 13 and the sliding block 12, the second support plate 10 and the first support plate 5 are close to each other to generate clamping force, the fixed plate 8 is clamped and fixed, further, the protective case 20 is fixed, then, the fan 16 is switched on and switched off, the fan 16 works to blow air to the protective case 20, external air flow enters the protective case 20 through the heat dissipation holes 15, and blowing to the surface of the circuit-breaking control unit 3 is realized, reach the cooling of the control unit 3 that opens circuit, avoid the inside high temperature of protective housing 20, cause the damage of the control unit 3 that opens circuit, influence the use of circuit breaker.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. Low-voltage circuit breaker, including protective housing (1), its characterized in that: the protection box comprises a protection box (1), a protection shell (20) is arranged in the protection box (1), a circuit breaking control unit (3) is fixedly connected to the inner wall of the protection shell (20), heat dissipation holes (15) are formed in the left side surface and the right side surface of the protection shell (20) and are arranged equidistantly, two groups of symmetrical fixing plates (8) are fixedly connected to the left side surface and the right side surface of the protection shell (20), two first supporting plates (5) are fixedly connected to the inner side wall of the protection box (1), a first bearing (19) is fixedly embedded in the bottom surface of each first supporting plate (5), a group of symmetrical sliding grooves (13) are formed in the inner side wall of the protection box (1), a sliding block (12) is clamped in each sliding groove (13), a second supporting plate (10) is fixedly connected to one side surface, close to each other, of the two sliding blocks (12), and a threaded hole, the inside of protective housing (1) is equipped with two threaded rod (7) with screw hole (9) looks adaptation, two the top of threaded rod (7) run through respectively two screw hole (9) and with the inner circle fixed connection of two first bearings (19), two sets of through wires hole (2) have all been seted up to the upper surface of protective housing (1) and the bottom surface of protective housing (1), the left and right sides face of protective housing (1) all is fixed inlays and has fan (16).
2. Low voltage circuit breaker as claimed in claim 1, characterized in that: every the below of threaded rod (7) all is equipped with runner (11), every the upper surface of runner (11) all with the bottom fixed connection of threaded rod (7).
3. Low voltage circuit breaker as claimed in claim 1, characterized in that: the left side of protective housing (1) is equipped with warning subsides (4), the right flank of warning subsides (4) and the left surface fixed connection of protective housing (1).
4. Low voltage circuit breaker as claimed in claim 1, characterized in that: the left side and the right side of the protective box (1) are respectively provided with handrails (17), and one ends of the handrails (17) which are close to each other are respectively fixedly connected with the left side surface and the right side surface of the protective box (1).
5. Low voltage circuit breaker as claimed in claim 1, characterized in that: the left and right sides of protective housing (1) all is equipped with two mounting panels (18), and is two sets of a side that mounting panel (18) are close to each other respectively with the left and right sides face fixed connection of protective housing (1).
6. Low voltage circuit breaker as claimed in claim 1, characterized in that: the left and right sides of protective housing (20) all is equipped with filter (6), two a side that filter (6) are close to each other respectively with the left and right sides face fixed connection of protective housing (20).
7. Low voltage circuit breaker as claimed in claim 1, characterized in that: the left side face and the right side face of the protection box (1) are provided with ventilation holes (14) which are arranged equidistantly, and the ventilation holes (14) are located below the fan (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022651753.2U CN213304032U (en) | 2020-11-17 | 2020-11-17 | Low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022651753.2U CN213304032U (en) | 2020-11-17 | 2020-11-17 | Low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213304032U true CN213304032U (en) | 2021-05-28 |
Family
ID=76017049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022651753.2U Active CN213304032U (en) | 2020-11-17 | 2020-11-17 | Low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213304032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113451070A (en) * | 2021-06-29 | 2021-09-28 | 河北弘业电气有限公司 | Installation protective structure of circuit breaker |
-
2020
- 2020-11-17 CN CN202022651753.2U patent/CN213304032U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113451070A (en) * | 2021-06-29 | 2021-09-28 | 河北弘业电气有限公司 | Installation protective structure of circuit breaker |
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