CN213150603U

CN213150603U - Quick circuit breaker switching-on and switching-off retaining device

Info

Publication number: CN213150603U
Application number: CN202021595471.9U
Authority: CN
Inventors: 刘锦辉; 杨韬; 汪尧
Original assignee: HEFEI MAXWE SHUNJIE POWER TECHNOLOGY CO LTD
Current assignee: HEFEI MAXWE SHUNJIE POWER TECHNOLOGY CO LTD
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-05-07
Anticipated expiration: 2030-08-04

Abstract

The utility model discloses a quick circuit breaker closes separating brake keeper relates to circuit breaker technical field. Including three arrester, the below of three arrester is all fixed and is provided with the floodgate, the floodgate includes dish spring depression bar, the lower extreme overcoat of dish spring depression bar is equipped with dish spring set nut, the bottom mounting of dish spring depression bar is provided with the dish spring, the bottom overcoat of dish spring depression bar is equipped with dish spring sleeve, the below of three floodgate all is provided with the insulator, the below of three insulator is provided with screw group holding device, screw group holding device is provided with the box outward. Has the advantages that: the mechanical structure and the manufacturing process are simplified, the manufacturing cost is reduced, the circuit breaker is prevented from being refused to move, and the normal work of the circuit breaker is ensured.

Description

Quick circuit breaker switching-on and switching-off retaining device

Technical Field

The utility model relates to a circuit breaker technical field particularly, relates to a quick circuit breaker closes separating brake keeper.

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. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances.

Along with the rapid development of social economy, the power consumption of various large enterprises and cities is increased day by day, and the increase of the whole power load is directly caused, so the requirement on the power supply reliability is higher and higher, the common rapid breaker switching-on and switching-off retaining device on the market is a retaining device attached to a spring type operating mechanism, specifically, after the breaker completes the switching-on operation, a limit switch switches on an energy storage motor and completes a series of actions under the action of the energy storage motor, a switching-on release locks a switching-on stop pin, the spring operating mechanism is kept in a switching-on state, a switching-off spring releases energy during switching-off, and a breaker body is kept at a switching-off position by the precompression force of the switching-off spring, so that the switching-on and switching-off retaining of the rapid breaker are realized.

However, although the opening and closing retaining device attached to the spring type operating mechanism can meet the requirements in most scenes, the opening and closing retaining device has the disadvantages of complex structure, complex manufacturing process, high processing precision requirement, higher manufacturing cost and large switching action impulse force, and is easy to cause mechanical failure to block the operating mechanism, so that the circuit breaker fails to operate.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem among the correlation technique, the utility model provides a quick circuit breaker closes separating brake keeper to overcome the above-mentioned technical problem that current correlation technique exists.

The technical scheme of the utility model is realized like this:

a quick breaker switching on/off holding device comprises: the three arrester, the below of three arrester is all fixed and is provided with the floodgate, the floodgate includes dish spring depression bar, the lower extreme overcoat of dish spring depression bar is equipped with dish spring set nut, the bottom mounting of dish spring depression bar is provided with the dish spring, the bottom overcoat of dish spring depression bar is equipped with the dish spring sleeve, the below of three floodgate all is provided with the insulator, the below of three insulator is provided with screw group holding device, screw group holding device is provided with the box outward.

Further, the screw group holding device comprises a first screw, a central shaft stud is sleeved outside the first screw, a nut is sleeved outside the upper end of the first screw, a closing holding magnetic yoke is sleeved outside the nut, fixing rods are fixedly arranged at four corners of the closing holding magnetic yoke, four closing magnets are fixedly arranged on the bottom surface of the closing holding magnetic yoke, a suction plate is arranged below the closing holding magnetic yoke, second screws are arranged at two ends of the suction plate in a penetrating manner, magnetic yoke support columns are arranged at positions of the suction plate corresponding to the four corners of the closing holding magnetic yoke in a penetrating manner, opening holding magnetic yokes are fixedly arranged at the bottom ends of the four magnetic yoke support columns, a central shaft support sleeve is arranged in the middle of each opening holding magnetic yoke in a penetrating manner, four opening magnets are fixedly arranged in the top surface of each opening holding magnetic yoke, and an opening coil is fixedly arranged below each opening holding magnetic yoke, the four corners of the opening coil are provided with coil support columns in a penetrating mode, the bottom ends of the four coil support columns are fixedly provided with closing coils, an eddy current disc is fixedly arranged between the opening coil and the closing coils, a bottom plate is fixedly arranged below the closing coils, and a nylon guide sleeve is arranged between the bottom plate and the closing coils in a penetrating mode.

Further, the bottom end of the first screw rod is provided with a fixing nut.

Furthermore, the suction plate is fixedly connected with the first screw rod and the second screw rod through welding.

Furthermore, the middle shaft stud penetrates through the nut, the suction plate, the middle shaft support sleeve, the vortex disc and the nylon guide sleeve in sequence.

Further, the fixing rod, the middle shaft support sleeve, the closing holding magnetic yoke, the closing magnet, the magnetic yoke support column, the opening holding magnetic yoke, the middle shaft support sleeve, the opening coil of the opening magnet, the coil support column, the closing coil, the vortex disc, the bottom plate, the middle shaft stud and the nylon guide sleeve are fixedly connected with each other.

Further, the specification of the first screw and the second screw is M10.

Furthermore, the top end of the fixing rod is fixedly connected with the top surface of the box body through screws and nuts.

Further, the closing holding magnetic yoke is fixedly connected with the four closing magnets through AB glue, and the opening holding magnetic yoke is fixedly connected with the four opening magnets through AB glue.

The utility model has the advantages that: when a brake is closed, a closing coil is electrified to generate magnetism, a closing keeping magnetic yoke conducts the magnetism to a closing magnet, the closing keeping magnetic yoke and a box body are fixed together through a fixing rod, and the opening keeping magnetic yoke is fixed together with the closing keeping magnetic yoke through a magnetic yoke supporting column, so that a suction plate can move upwards under the action of magnetic force and is adsorbed to the closing magnet, and the suction plate is fixedly connected with a first screw rod and a second screw rod, so that a contact at the top ends of the first screw rod and the second screw rod can be contacted with a moving contact connected with a disc spring compression bar, the moving contact connected with the disc spring compression bar is kept in a contact state with a fixed contact, and closing keeping is realized; when a brake is disconnected, the brake separating coil is electrified to generate magnetism, the brake separating maintaining magnetic yoke conducts the magnetism to the brake separating magnet, the closing maintaining magnetic yoke and the box body are fixed together through the fixing rod, the brake separating maintaining magnetic yoke is fixed together with the closing maintaining magnetic yoke through the magnetic yoke supporting column, the suction plate can move downwards under the action of magnetic force and is adsorbed to the closing magnet, and the suction plate is fixedly connected with the first screw rod and the second screw rod, so that a contact at the top end of the first screw rod and the top end of the second screw rod can be far away from a moving contact connected with the disc spring pressing rod, and the moving contact connected with the disc spring pressing rod is separated from a fixed contact, so that brake separating maintaining is achieved. The device utilizes the principle of electromagnetism generation, changes the original pure mechanical structure into the up-and-down movement controlled by current, simplifies the mechanical structure and the manufacturing process, and reduces the manufacturing cost. Because the distance between the opening and closing maintaining magnetic yokes is fixed, when the suction plate moves up and down, the suction plate cannot move over due to the action of magnetic force, and further the phenomenon that the impulse force of switching action is large is avoided, so that the mechanical fault caused by the large impulse force is avoided, the circuit breaker is prevented from being refused to move, and the normal work of the circuit breaker is ensured.

Drawings

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

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a cross-sectional view according to an embodiment of the invention;

fig. 3 is an enlarged view at a of fig. 2 according to an embodiment of the present invention;

fig. 4 is one of the overall explosion schematics according to an embodiment of the present invention;

fig. 5 is a second schematic diagram of the overall explosion according to the embodiment of the present invention;

fig. 6 is a third schematic diagram of the overall explosion according to the embodiment of the present invention.

In the figure:

1. a lightning arrester; 2. a gate; 201. a disc spring compression bar; 202. a disc spring sleeve nut; 203. a disc spring; 204. a disc spring sleeve; 3. an insulator; 4. a screw group holding device; 401. a first screw; 402. a nut; 403. a closing holding yoke; 404. fixing the rod; 405. a closing magnet; 406. sucking a plate; 407. a magnet yoke support post; 408. A switching-off holding yoke; 409. a middle shaft supporting sleeve; 4010. a brake separating magnet; 4011. a brake separating coil; 4012. a coil support post; 4013. a closing coil; 4014. a vortex disk; 4015. a base plate; 4016. a nylon guide sleeve; 4017. a second screw; 4018. fixing a nut; 4019. a middle shaft stud; 5. and (4) a box body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

According to the utility model discloses an embodiment provides a quick circuit breaker closes separating brake keeper.

As shown in fig. 1-6, according to the utility model discloses quick circuit breaker switching on/off holding device includes: three arrester 1, the below of three arrester 1 is all fixed and is provided with floodgate 2, floodgate 2 includes dish spring depression bar 201, the lower extreme overcoat of dish spring depression bar 201 is equipped with dish spring set nut 202, the bottom mounting of dish spring depression bar 201 is provided with dish spring 203, the bottom overcoat of dish spring depression bar 201 is equipped with dish spring sleeve 204, the below of three floodgate 2 all is provided with insulator 3, the below of three insulator 3 is provided with screw group retention device 4, screw group retention device 4 is provided with box 5 outward.

In one embodiment, for the back plate 1, the screw group holding device 4 includes a first screw 401, a central shaft stud is sleeved outside the first screw 401, a nut 402 is sleeved outside an upper end of the first screw 401 in 4019, a closing holding yoke 403 is sleeved outside the nut 402, fixing rods 404 are fixedly disposed at four corners of the closing holding yoke 403, four closing magnets 405 are fixedly disposed on a bottom surface of the closing holding yoke 403, a suction plate 406 is disposed below the closing holding yoke 403, a second screw 4017 is disposed at both ends of the suction plate 406, yoke support columns 407 are penetratingly disposed at positions of the suction plate 406 corresponding to the four corners of the closing holding yoke 403, a separating yoke 408 is fixedly disposed at bottom ends of the four yoke support columns 407, so that a certain distance can be maintained between the separating yoke 408 and the closing holding yoke 403 by the yoke support columns 407, furthermore, the suction plate 406 can move in the distance, a middle shaft support sleeve 409 penetrates through the middle of the opening maintaining magnetic yoke 408, four opening magnets 4010 are fixedly arranged in the top surface of the opening maintaining magnetic yoke 408, an opening coil 4011 is fixedly arranged below the opening maintaining magnetic yoke 408, coil support columns 4012 are arranged at four corners of the opening coil 4011 in a penetrating mode, closing coils 4013 are fixedly arranged at the bottom ends of the four coil support columns 4012, and an eddy current disc 4014 is fixedly arranged between the opening coil 4011 and the closing coils 4013, so that when a magnetic field changes, the eddy current strength can be reduced, the energy loss is reduced, a bottom plate 4015 is fixedly arranged below the closing coils 4013, and a nylon guide sleeve 4016 penetrates through the middle of the bottom plate 4015 and the closing coils 4013.

In one embodiment, as for the first screw 401, a fixing nut 4018 is disposed at a bottom end of the first screw 401, so that the bottom plate 4015 can be limited and the bottom plate 4015 can be prevented from falling off the first screw 401.

In one embodiment, for the suction plate 406, the suction plate 406 is fixed to the first screw 401 and the second screw 4017 by welding, so that the suction plate 406 can drive the first screw 401 and the second screw 4017 to move together.

In one embodiment, for the above central shaft stud 4019, the central shaft stud 4019 sequentially penetrates through the nut 402, the suction plate 406, the central shaft support sleeve 409, the vortex disc 4014 and the nylon guide sleeve 4016.

In one embodiment, for the fixing rod 404, the middle shaft support sleeve 409, the closing holding yoke 403, the closing magnet 405, the yoke support post 407, the opening holding yoke 408, the middle shaft support sleeve 409, the opening magnet 4010, the opening coil 4011, the coil support post 4012, the closing coil 4013, the vortex plate 4014, the bottom plate 4015, the middle shaft stud 4019 and the nylon guide sleeve 4016 are fixedly connected to each other.

In one embodiment, for the first screw 401, the specification of the first screw 401 and the second screw 4017 is M10.

In one embodiment, for the fixing rod 404, the top end of the fixing rod 404 is fixedly connected to the top surface of the box 5 by a screw nut.

In one embodiment, the closing holding yoke 403 is fixedly connected to the four closing magnets 405 by an AB adhesive, so that the closing holding yoke 403 and the four closing magnets 405 are integrated, the opening holding yoke 408 and the four opening magnets 4010 are fixedly connected by an AB adhesive, and the opening holding yoke 408 and the four opening magnets 4010 are integrated.

In summary, with the aid of the technical solution of the present invention, when the gate 2 is closed, the closing coil 4013 is energized to generate magnetism, the closing holding yoke 403 conducts magnetism to the closing magnet 405, because the fixing rod 404 fixes the closing holding yoke 403 to the box 5, the opening holding yoke 408 is fixed to the closing holding yoke 403 through the yoke support column 407, so the attraction plate 406 can move upward under the action of magnetic force and is attracted to the closing magnet 405, and because the attraction plate 406 is fixedly connected to the first screw rod and the second screw rod 4017, the top end contact of the first screw rod and the second screw rod 4017 can contact the movable contact connected to the disc spring pressing rod 201, so that the movable contact connected to the disc spring pressing rod 201 is kept in contact with the fixed contact, thereby realizing closing holding; when the brake 2 is disconnected, the opening coil 4011 is electrified to generate magnetism, the opening maintaining magnetic yoke 408 guides the magnetism to the opening magnet 4010, the closing maintaining magnetic yoke 403 is fixed with the box body 5 through the fixing rod 404, and the opening maintaining magnetic yoke 408 is fixed with the closing maintaining magnetic yoke 403 through the magnetic yoke support column 407, so that the attraction plate 406 moves downwards under the action of magnetic force and is attracted to the closing magnet 405, and the attraction plate 406 is fixedly connected with the first screw and the second screw 4017, so that a contact at the top ends of the first screw and the second screw 4017 is far away from a movable contact connected with the disc spring pressing rod 201, and the movable contact and a fixed contact connected with the disc spring pressing rod 201 are separated, so that opening maintaining is realized.

Has the advantages that: 1. the device utilizes the principle of electromagnetism generation, changes the original pure mechanical structure into the up-and-down movement controlled by current, simplifies the mechanical structure and the manufacturing process, and reduces the manufacturing cost.

2. Because the distance between the opening and closing maintaining magnetic yokes is fixed, when the suction plate moves up and down, the suction plate cannot move over due to the action of magnetic force, and further the phenomenon that the impulse force of switching action is large is avoided, so that the mechanical fault caused by the large impulse force is avoided, the circuit breaker is prevented from being refused to move, and the normal work of the circuit breaker is ensured.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick breaker switching on/off holding device comprises: the lightning arrester comprises three lightning arresters (1) and is characterized in that a brake (2) is fixedly arranged below the three lightning arresters (1), the brake (2) comprises a disc spring pressing rod (201), a disc spring sleeve nut (202) is sleeved outside the lower end of the disc spring pressing rod (201), a disc spring (203) is fixedly arranged at the bottom end of the disc spring pressing rod (201), a disc spring sleeve (204) is sleeved outside the bottom end of the disc spring pressing rod (201), insulators (3) are arranged below the brake (2), a screw rod group retaining device (4) is arranged below the insulators (3), and a box body (5) is arranged outside the screw rod group retaining device (4).

2. The quick breaker switching-on/off holding device according to claim 1, wherein the screw group holding device (4) comprises a first screw (401), a central shaft stud (4019) is sleeved outside the first screw (401), a nut (402) is sleeved outside the upper end of the first screw (401), a switching-on holding yoke (403) is sleeved outside the nut (402), fixing rods (404) are fixedly arranged at four corners of the switching-on holding yoke (403), four switching-on magnets (405) are fixedly arranged on the bottom surface of the switching-on holding yoke (403), a suction plate (406) is arranged below the switching-on holding yoke (403), second screws (4017) are arranged at two ends of the suction plate (406) in a penetrating manner, and yoke support columns (407) are arranged at positions of the suction plate (406) corresponding to the four corners of the switching-on holding yoke (403), the bottom ends of the four magnetic yoke supporting columns (407) are fixedly provided with a switching-off holding magnetic yoke (408), a middle shaft supporting sleeve (409) penetrates through the middle of the opening retaining magnetic yoke (408), four opening magnets (4010) are fixedly arranged in the top surface of the opening holding magnetic yoke (408), a brake separating coil (4011) is fixedly arranged below the brake separating and holding magnetic yoke (408), coil support columns (4012) are arranged at four corners of the opening coil (4011) in a penetrating manner, closing coils (4013) are fixedly arranged at the bottom ends of the four coil support columns (4012), an eddy current disc (4014) is fixedly arranged between the opening coil (4011) and the closing coil (4013), the fixed bottom plate (4015) that is provided with in below of closing coils (4013), bottom plate (4015) with the centre of closing coils (4013) is run through and is provided with nylon uide bushing (4016).

3. The quick breaker opening and closing holding device of claim 2, wherein the bottom end of the first screw rod (401) is provided with a fixing nut (4018).

4. The opening and closing holding device of the quick breaker as claimed in claim 2, wherein the suction plate (406) is fixed with the first screw rod (401) and the second screw rod (4017) by welding.

5. The quick breaker switching-on and switching-off holding device as claimed in claim 2, characterized in that the central shaft stud (4019) penetrates through the nut (402), the suction plate (406), the central shaft support sleeve (409), the vortex disc (4014) and the nylon guide sleeve (4016) in sequence.

6. The on-off holding device of the quick breaker as claimed in claim 2, characterized in that the fixing rod (404), the middle shaft support sleeve (409), the closing holding yoke (403), the closing magnet (405), the yoke support post (407), the opening holding yoke (408), the middle shaft support sleeve (409), the opening magnet (4010), the opening coil (4011), the coil support post (4012), the closing coil (4013), the eddy current plate (4014), the bottom plate (4015), the middle shaft stud (4019) and the nylon guide sleeve (4016) are fixedly connected to each other.

7. The device for holding the opening and closing of the quick breaker as claimed in claim 2, wherein the specification of the first screw (401) and the second screw (4017) is M10.

8. The device for holding the opening and closing of the quick breaker as claimed in claim 2, wherein the top end of the fixing rod (404) is fixedly connected with the top surface of the box body (5) by a screw and a nut.

9. The device for holding the opening and closing of the quick breaker as claimed in claim 2, wherein the closing holding yoke (403) is fixedly connected with the four closing magnets (405) by AB glue, and the opening holding yoke (408) is fixedly connected with the four opening magnets (4010) by AB glue.