CN213094543U

CN213094543U - Anti-static structure and circuit breaker with same

Info

Publication number: CN213094543U
Application number: CN202022497703.3U
Authority: CN
Inventors: 杨启勇; 潘礼云; 胡浪涛; 杨红艺; 王兴利; 汪秀旵
Original assignee: Zhejiang Tengen Electric Co Ltd
Current assignee: Zhejiang Tengen Electric Co Ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-04-30
Anticipated expiration: 2030-11-02

Abstract

The utility model provides a pair of prevent static structure and have its circuit breaker belongs to circuit breaker technical field, prevents static structure, is suitable for to set up on the first lid of mutually supporting and second lid, include: the anti-static climbing plate is arranged at least one circle around the edge of the first cover body, and the top end of the anti-static climbing plate extends out of the first cover body upwards; when the first cover body and the second cover body are buckled, the anti-static climbing plate is attached to the inner wall and/or the outer wall of the second cover body; the utility model discloses a prevent static structure, the setting of preventing static climbing board can increase the creepage distance between first lid and the second lid binding face, promotes the static performance of circuit breaker product.

Description

Anti-static structure and circuit breaker with same

Technical Field

The utility model relates to a circuit breaker technical field, concretely relates to prevent static structure and have its circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time.

In the small-size intelligent molded case circuit breaker, the circuit board occupies a large space and the product is easy to have unqualified electrostatic performance due to small size, compact structure and multiple functions. However, in the circuit breaker product, when static electricity with certain intensity exists around, the product is easy to malfunction, even can damage a circuit board when serious,

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides an anti-static structure;

the utility model also provides a circuit breaker.

The utility model provides a pair of prevent static structure is suitable for the setting on the first lid of mutually supporting and second lid, include:

the anti-static climbing plate is arranged at least one circle around the edge of the first cover body, and the top end of the anti-static climbing plate extends out of the first cover body upwards;

when the first cover body is buckled with the second cover body, the anti-static climbing plate is attached to the inner wall and/or the outer wall of the second cover body.

Preferably, the anti-static climbing plate is provided with a circle around the edge of the first cover body.

Preferably, when the first cover body and the second cover body are buckled, the anti-static climbing plate extends into the second cover body.

As a preferable scheme, a first mounting hole is formed in the first cover body, and a second mounting hole is formed in the second cover body; the first mounting hole and the second mounting hole are correspondingly arranged; the joint of the first mounting hole and the second mounting hole forms a joint surface, the joint of the second cover body and the first cover body forms a matching surface, and the joint surface and the matching surface are arranged in a staggered mode.

Preferably, the first cover body is provided with a sunken jack, and a first mounting hole is formed in the jack; be provided with on the second lid and insert the post, insert and have the second mounting hole that link up in the post, insert the post and stretch into in the jack.

Preferably, the sunken jack portion is a circular recess.

The utility model also provides a breaker, which comprises a first cover body and a second cover body; any one of the above-mentioned anti-static structures is arranged between the first cover body and the second cover body, and the circuit board is arranged in a space formed by the first cover body and the second cover body.

Preferably, the second cover body is provided with a plurality of indicator light hole sites, the indicator light hole sites are provided with hollow guide posts extending towards the first cover body, and the circuit board is provided with lights corresponding to the hollow guide posts.

Preferably, a chamfer is arranged at one end, far away from the second cover body, of the inner part of the guide post.

Preferably, a reinforcing rib is arranged between the guide post and the second cover body.

The utility model discloses technical scheme has following advantage:

1. the utility model provides an antistatic structure, include: an anti-static climbing plate; the anti-static climbing plate is arranged on the upper surface of the first cover body; because the circuit breaker that generally has this antistatic structure, the product is small, and the circuit board overall arrangement is intensive, and the creepage distance between first lid and the second lid binding face can be increased in the setting of antistatic climbing board, promotes the static performance of circuit breaker product.

2. The utility model provides an anti-static structure, the anti-static climbing plate is arranged around the edge position of the upper surface of the first cover body, and after the first cover body and the second cover body are buckled, the anti-static climbing plate is attached to the inner wall of the side wall of the second cover body; the arrangement of the structure can enhance the limit of the second cover body, so that the first cover body and the second cover body are matched more closely.

3. The utility model provides a prevent static structure, first mounting hole with second mounting hole interface is personally submitted the height dislocation cooperation structure for the cooperation of first lid and second lid respectively, can increase the creepage distance of first lid and second lid cooperation department, promotes the product static performance.

4. The utility model provides a circuit breaker, a guide post is arranged on a second cover body; the arrangement of the guide post can prevent the displacement of the light source of the indicator light arranged on the hole site of the indicator light, so that the light is more concentrated; positioning the indicator lamp to align the indicator lamp with the hole position of the indicator lamp; and simultaneously, the indicator lamp can be protected.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a perspective view of a housing.

Fig. 2 is a perspective view of the first cover in fig. 1.

Fig. 3 is an enlarged view of the area a in fig. 2.

Fig. 4 is a perspective view of the second cover in fig. 1.

Fig. 5 is an enlarged view of a region B in fig. 4.

Fig. 6 is an enlarged view of the region C in fig. 4.

Fig. 7 is a top view of the housing.

Fig. 8 is a cross-sectional view taken along line D-D of fig. 7.

Fig. 9 is an enlarged view of region F in fig. 8.

Fig. 10 is a cross-sectional view taken along line E-E of fig. 7.

Fig. 11 is an enlarged view of the region G in fig. 10.

Fig. 12 is a perspective view of the transmission mechanism within the housing.

Fig. 13 is a perspective view of the transmission structure with the handle in the second position within the housing.

Fig. 14 is a front view of fig. 13.

FIG. 15 is a perspective view of the transmission structure with the handle in the first position within the housing.

Fig. 16 is a front view of fig. 15.

Fig. 17 is an exploded view of the handle.

FIG. 18 is a side cross-sectional view of the handle cap of FIG. 17.

FIG. 19 is a perspective view of another embodiment of a handle cap.

Fig. 20 is a perspective view of an electrostatic current transfer structure within a housing.

Fig. 21 is an enlarged view of the region H in fig. 20.

Fig. 22 is an exploded view of the manually operated mechanism.

Fig. 23 is a perspective view of the manual drive gear of fig. 22.

Description of reference numerals:

1. a first cover body; 2. a second cover body; 3. a circuit board; 4. an anti-static climbing plate; 5. a first mounting hole; 6. a jack; 7. a second mounting hole; 8. inserting a column; 9. indicating lamp hole sites; 10. a hollow guide post; 11. reinforcing ribs; 12. a handle; 13. a fixing plate; 14. a connecting shaft; 15. a connecting rod; 16. a driven gear; 17. an extension end; 18. an annular flange; 19. a handle body; 20. a handle cap; 21. a first connection hole; 22. a circular groove; 23. a barrier; 24. a second connection hole; 25. the side edge is open; 26. a metal bracket; 27. an electrostatic discharge line; 28. a wire limit hook; 29. a manual drive lever; 30. a manual drive gear; 31. one-way teeth; 32. a manual-automatic switching device; 33. embedding a nut; 34. a rocker arm.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

In this embodiment, a specific implementation manner of an anti-static structure of a reclosure breaker is provided, as shown in fig. 1, a housing of the reclosure breaker includes a first cover 1 and a second cover 2 that are matched with each other, and the anti-static structure is disposed between the first cover 1 and the second cover 2.

As shown in fig. 2, a circuit board 3 is provided in the first cover 1 of the case, and the circuit board 3 is used for circuit control. The antistatic structure includes: prevent static board 4 that climbs, prevent that static board 4 that climbs sets up the upper surface at first lid 1, prevent that the top of static board 4 that climbs stretches out upwards first lid 1 works as first lid 1 with when the second lid 2 lock, prevent that static board 4 that climbs extends in the second lid 2. Because the reclosing circuit breaker who generally has this antistatic structure, the product is small, and circuit board 3 overall arrangement is intensive, and the creepage distance between first lid 1 and the 2 binding surfaces of second lid can be increased in the setting of antistatic climbing board 4, promotes the static performance of reclosing circuit breaker product.

As shown in fig. 3, the first cover 1 has a sunken jack 6, the top surface of the jack is lower than the mating surfaces of the first cover and the second cover, the jack has a first mounting hole 5 therein, and the first mounting hole has an internal thread therein.

As shown in fig. 4 and 5, the second lid body 2 is provided with an insertion post 8, the insertion post 8 extends from the second lid body 2, and a through second mounting hole is provided in the insertion post 8.

As shown in fig. 9, when the first cover body 1 and the second cover body 2 are closed, the insertion post 8 of the second cover body 2 extends into the insertion hole 6 of the first cover body 1, and the matching surface between the insertion post 8 and the insertion hole 6 and the matching surface between the first cover body 1 and the second cover body 2 form a height difference, so as to increase the electrostatic climbing distance.

As an alternative embodiment, the first cover body is provided with an insertion column, and the second cover body is provided with an insertion hole.

As shown in fig. 4 and 6, a lamp is arranged on the circuit board, and corresponds to the lamp on the circuit board, a plurality of indicator hole sites 9 are arranged on the second cover body 2, a hollow guide post 10 extending towards the first cover plate is arranged on the indicator hole sites 9, the hollow guide post 10 extends towards the indicator arranged on the first cover body 1, and is finally sleeved outside the indicator after assembly, and a chamfer is arranged at one end of the inside of the hollow guide post 10 far away from the second cover body 2; and a reinforcing rib 11 is arranged between the hollow guide post 10 and the second cover body 2.

As shown in fig. 7, 8, and 9, when the first cover 1 and the second cover 2 are fastened, the first mounting hole 5 and the second mounting hole 7 are disposed in a height-staggered manner with respect to the mating surfaces of the first cover 1 and the second cover 2, so that the bolt fixing positions of the first cover 1 and the second cover 2 increase the creepage distance, improve the electrostatic performance of the product, and enable the circuit board 3 to be disposed at a position close to one side of the second cover 2.

As shown in fig. 7, 10, and 11, when the first cover body 1 and the second cover body 2 are fastened, the anti-static climbing plate 4 extends into the inner wall of the second cover body 2, so as to increase the static climbing distance and improve the anti-static performance of the product, and in addition, the anti-static climbing plate 4 can limit the second cover body 2, so that the first cover body 1 and the second cover body 2 are more tightly fitted.

This prevent static structure mainly uses in reclosing circuit breaker, and a lot of reclosing circuit breaker's product, small, and 3 overall arrangement of circuit board are intensive, prevent static climb board 4 through the setting and can improve the climb distance, promote the static performance of product.

Example 2

This embodiment provides a reclosing circuit breaker's transmission structure's embodiment, as shown in fig. 12, be provided with the mounting groove in reclosing circuit breaker's the casing, handle 12 rotates and installs in the mounting groove, handle 12 passes through transmission structure and is connected with drive arrangement, and when needs reclosed, drive arrangement passed through transmission structure drive handle and rotates in reclosing circuit breaker's casing.

As shown in fig. 12 and 20, a manual operation mechanism and an automatic operation mechanism are provided on both sides of the driven gear 16 in the case of the reclosing breaker; the manual operating mechanism and the automatic operating mechanism can drive the driven gear 16 to rotate, so that the handle 12 can move between the first position and the second position. Specifically, the automatic operating mechanism has an automatic drive gear that meshes with the driven gear 16, and the automatic drive gear is drivingly connected to a drive motor. The manual operating mechanism is provided with a manual driving gear 30, the manual driving gear 30 is meshed with the driven gear 16, the manual driving gear 30 is connected to the bottom end of a manual driving rod 29, the manual driving rod 29 can drive the manual driving gear 30 to rotate, and the manual driving rod 29 is connected with the shell through a metal bracket 26.

As shown in fig. 13, the transmission structure includes: fixed plate 13, connecting axle 14, connecting rod 15 and driven gear 16. The fixing plate 13 is connected to the top end of the handle, and the fixing plate 13 is provided with an extending end 17 extending towards one side of the handle; the connecting shaft 14 is connected to the extending end 17, and the driving handle can avoid an interference piece above the handle when rotating through the arrangement of the extending end 17, so that the space layout in the shell is more compact.

As shown in fig. 14, the handle has a first position within the housing that rotates to a first end, at which time the reclosing circuit breaker is in an open state.

As shown in fig. 16, the handle has a second position within the housing that rotates to a second end, at which time the reclosing circuit breaker is in a closed state.

Meanwhile, in the process that the handle is switched from the first position to the second position, the top end face of the handle is always lower than the lower surface of the driven gear; therefore, the size of the handle can be greatly reduced, the overall structure is more compact, the overall volume of the reclosure is reduced, and the cost is saved.

As shown in fig. 15, the fixing plate 13 connected to the top end of the handle has an extending end 17 extending in a direction away from the first position of the handle, the extending end 17 is vertically connected to a connecting shaft 14, and one end of the connecting rod 15 is connected to the connecting shaft 14. When the handle is rotated to the first position, the connecting shaft 14 vertically disposed at the upper end of the extension end 17 can avoid the interference member above the handle, and specifically, the handle can be extended below the driven gear 16, so that the spatial layout is more compact.

As shown in fig. 15, one end of the connecting rod 15 is provided with a circular hole, the circular hole is connected with one end of a rocker arm 34, and the other end of the rocker arm is connected with a driven gear; the rocker arm 34 is a Z-shaped connecting rod; the other end of the connecting rod 15 is provided with a waist circular hole which is connected with the connecting shaft 14.

As shown in fig. 16, the connecting rod 15 is a "Z" shaped link, and since there is a height difference between the driven gear 16 and the upper end of the connecting shaft 14, the connecting rod 15 is arranged in a "Z" shape, so that the connecting rod 15 can be reliably assembled when the handle is at both the first position and the second position.

As shown in fig. 17, a through hole is formed in the extending end 17 of the fixing plate 13, one end of the connecting shaft 14 passes through the through hole, an annular flange 18 is formed on the connecting shaft 14, and the lower end of the annular flange 18 abuts against the extending end 17; the connecting mode of the connecting shaft 14 and the extending end 17 can be spin riveting or welding, and the firmness of the connection between the connecting shaft 14 and the extending end 17 can be increased. Meanwhile, due to the arrangement of the extension end 17, the eccentric connection between the connecting shaft 14 and the handle is realized, and the connecting shaft is prevented from contacting with a rear gear.

As shown in fig. 17, the upper end of the connecting shaft 14 passes through the oval hole of the connecting rod 15, a threaded hole is formed in the upper top end of the connecting shaft 14, and the upper end of the annular flange 18 abuts against the lower end of the connecting rod 15; and nuts are screwed in the threaded holes of the connecting shaft 14, and the connecting shaft 14 cannot penetrate out of the waist circular holes of the connecting rods 15 due to the blocking of the nuts, so that the connecting shaft 14 and the connecting rods 15 do sliding circular motion.

As shown in fig. 18, the handle comprises a handle body 19 and a handle cap 20, the handle cap 20 is sleeved on the upper end of the handle body 19, and has a first connecting hole 21 in the middle of the handle cap 20, and the upper end of the first connecting hole 21 has an annular groove 22; first bolt passes first connecting hole 21 and is used for carrying out the fastening connection to handle cap 20 and handle body 19, the nut of first bolt can be screwed into first connecting hole 21 completely, with first bolt screw in first connecting hole 21 completely after, seal in the ring groove 22 of the top of first connecting hole 21 and set up separation piece 23, separation piece 23 can select insulating material such as red vulcanized fiber board to increase the electrostatic protection to handle body 19, increase creepage distance, strengthen insulating withstand voltage, can also play when the screw is not hard up between handle body and the handle cap, utilize separation piece to support (the fixed plate supports separation piece, separation piece supports the screw), prevent that the screw from thoroughly coming off and leading to the relation of connection between the two to be destroyed.

As shown in fig. 19, the top end of the handle cap 20 is provided with a second connecting hole 24, and an embedded nut 33 is respectively embedded in the second connecting hole 24, specifically, the embedded nut 33 can be embedded into the second connecting hole 24 from the side opening 25 of the handle cap 20, and can also be embedded into the second connecting hole 24 from above the second connecting hole 24; two through holes are formed in the fixing plate 13, and bolts penetrate through the through holes to be screwed with the embedded nuts 33, so that the handle cap 20 is connected with the fixing plate 13; the embedded nut 33 can fix the handle cap 20 and the fixing plate 13 and enhance the bearing capacity of the handle cap 20.

Example 3

The embodiment provides a specific implementation manner of an electrostatic current transfer structure of a reclosing circuit breaker, as shown in fig. 18, a circuit board 3, a manual operation mechanism and a manual/automatic switching device 32 are arranged inside a casing of the reclosing circuit breaker, wherein a protective ground wire is connected to the circuit board 3, the manual operation mechanism is provided with a metal bracket 26 arranged in the casing, and the manual/automatic switching device 32 is arranged in the casing in parallel with the metal bracket 26 of the manual operation mechanism and is electrically connected with the circuit board 3 through a signal line.

The electrostatic current transfer structure includes: and an electrostatic discharge wire 27 provided between the metal holder 26 of the manual operation mechanism and the protective earth wire.

As shown in fig. 19, a conductor guide channel is provided in the housing between the manual-automatic switching device 32 and the circuit controller board, and the signal lines between the manual-automatic switching device 32 and the circuit board 3 are accommodated in the conductor guide channel; one end of the electrostatic discharge wire 27 is connected to the metal bracket 26 of the manual operating mechanism, the other end of the electrostatic discharge wire 27 is connected to the protective earth, and the electrostatic discharge wire 27 is also accommodated in the wire guide passage.

As shown in fig. 19, the wire guide channel is provided with two wire limiting hooks 28, the two wire limiting hooks 28 are arranged at intervals, and the inlet and outlet directions of the two wire limiting hooks 28 are opposite.

As shown in fig. 20, the manual operation mechanism includes: a metal bracket 26, a manual drive lever 29 and a manual drive gear 30. The metal bracket 26 is used for being connected in a shell, the manual driving rod 29 is rotatably connected to the metal bracket 26, one end of the manual driving rod 29 penetrates through the metal bracket 26, the other end of the manual driving rod 29 is suitable for driving operation, and the manual driving rod 29 is suitable for transversely penetrating through a limiting rod. The manual driving gear 30 is connected to the bottom end of the manual driving rod 29 and is adapted to be driven to rotate by the manual driving rod 29.

As shown in fig. 21, the center of the manual driving gear 30 has a one-way tooth 31 for engaging with the stopper rod.

As shown in fig. 22 and 23, the manual driving rod 29 is adapted to cross two limiting rods, wherein the limiting rod at the lower end is used for cooperating with the one-way teeth 31 of the manual driving gear 30, and the limiting rod at the upper end is used for cooperating with the metal bracket 26, so that the manual driving rod 29 cannot be drawn out of the metal bracket 26.

The casing of reclosing circuit breaker that this embodiment provided adopts embodiment one the casing, including first lid 1 and the second lid 2 of mutually supporting promptly, still including preventing structures such as static climbing board 4 to the static of preventing of further assurance reclosing circuit breaker's casing.

The transmission mechanism described in the second embodiment is further provided in the housing of the reclosing circuit breaker provided in this embodiment, and the connecting rod 15 of the transmission mechanism is in an operating state, so that the movement of the connecting rod 15 is not affected by the adoption of the electrostatic current transfer structure.

Example 4

The embodiment provides a reclosing circuit breaker, which comprises the electrostatic current transfer structure, the anti-static structure and the transmission mechanism in the embodiments 1 to 3.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. An antistatic structure adapted to be provided on a first cover body (1) and a second cover body (2) which are fitted to each other, comprising:

the anti-static climbing plate (4) is arranged on the upper surface of the first cover body (1), and the top end of the anti-static climbing plate (4) extends upwards out of the upper surface of the first cover body (1);

when the first cover body (1) is matched with the second cover body (2), the anti-static climbing plate (4) is attached to the inner wall and/or the outer wall of the side wall of the second cover body (2).

2. The structure according to claim 1, characterized in that the anti-static climbing plate (4) is provided around the upper surface of the first cover (1) at the edge position.

3. The structure according to claim 2, characterized in that when the first cover (1) and the second cover (2) are mated, the anti-static climbing plate (4) protrudes into the second cover (2).

4. An antistatic construction according to any one of claims 1-3, characterized in that a first mounting hole (5) is provided in the first cover (1) and a second mounting hole (7) is provided in the second cover (2); the first mounting hole (5) and the second mounting hole (7) are correspondingly arranged; the joint of the first mounting hole (5) and the second mounting hole (7) forms a joint surface, the joint of the second cover body (2) and the first cover body (1) forms a matching surface, and the joint surface and the matching surface are arranged in a staggered mode.

5. The antistatic structure according to claim 4, characterized in that the first cover body is provided with a sunken jack (6) which is internally provided with a first mounting hole (5); be provided with on the second lid and insert post (8), insert and have the second mounting hole that link up in the post, insert post (8) and stretch into in jack (6).

6. The antistatic structure of claim 5 wherein the sunken jack portion is a circular recess.

7. The circuit breaker is characterized by comprising a first cover body (1) and a second cover body (2); an antistatic structure as claimed in any one of claims 1 to 6 is arranged between the first cover body (1) and the second cover body (2), and the circuit board (3) is arranged in a space formed by the first cover body (1) and the second cover body (2).

8. The circuit breaker according to claim 7, wherein the second cover (2) is provided with a plurality of indicator holes (9), the indicator holes (9) are provided with hollow guide posts (10) extending towards the first cover (1), and the circuit board is provided with lamps corresponding to the hollow guide posts.

9. The circuit breaker according to claim 8, characterized in that the end of the interior of the guide post remote from the second cover (2) is provided with a chamfer.

10. The circuit breaker according to claim 8 or 9, characterized in that a reinforcement (11) is provided between the guide post and the second cover (2).