CN221353918U - A kind of opening and closing coil protection device - Google Patents

Abstract

The utility model relates to the technical field of circuit breaker protection, in particular to a switching-on/off coil protection device, which comprises a coil protector; a detachable upper cover is arranged above the bottom plate, fixed blocks are fixed at the bottom ends of the front and rear outer walls of the upper cover and are inserted into the gaps, clamping grooves are formed in the two side walls of the fixed blocks, and one end of the sliding block is in clamping fit with the clamping grooves; elastic pieces are arranged at the four corners of the inner cavity of the upper cover; the upper cover both ends are provided with the fixed block, and the fixed block inserts the breach department between two archs, under the elastic action of first spring, applys effort to the slider for in the draw-in groove on the fixed block was gone into to the one end card of slider, under the restriction of slider, can restrict the upper cover at the top of bottom plate, this design can be with the stable top of installing at the bottom plate of upper cover, has guaranteed the connection stability between upper cover and the bottom plate, has guaranteed the protection effect of upper cover to inside partial coil assembly protection component.

Description

Opening and closing coil protection device

Technical Field

The utility model relates to the technical field of circuit breaker protection, in particular to a switching-on/off coil protection device.

Background

The switching-on coil and the switching-off coil are widely applied to a circuit breaker in a power system and used for controlling the on-off of a circuit, the circuit breaker is in a closed state under normal conditions, the switching-on coil is electrified to generate a magnetic field to attract a contact to be closed so as to electrify the circuit, and when the circuit needs to be disconnected, the switching-off coil is electrified to generate the magnetic field to push the contact open so as to disconnect the circuit; the reliable control and protection of the circuit in the power system can be realized through the control of the closing coil and the opening coil; however, in the actual use process, when the breaker fails to break or break due to mechanical failure, overload of the closing coil and the opening coil is caused to burn out, so that the closing coil and the opening coil are both required to be protected by a protector.

The utility model patent with the authorized bulletin number of CN214590573U discloses a circuit breaker opening and closing coil protection device, which comprises an upper cover, a base, a wiring terminal and an opening and closing coil protection component, wherein the upper cover is buckled on the base and is fixedly connected with the base, the opening and closing coil protection component is packaged between the upper cover and the base, the wiring terminal is arranged on the base, and the wiring terminal is electrically connected with the opening and closing coil protection component; the opening and closing coil protection assembly comprises a first current sensor, a second current sensor, a central processing unit, an opening and closing protection actuator, a closing coil protection actuator and a fault alarm; the device detects current data in the opening coil loop and the closing coil protection loop in real time through the first current sensor and the second current sensor, sends the current data to the central processing unit for processing, and timely cuts off power supply of the abnormal coil loop through the opening protection actuator and the closing coil protection actuator when the current data are abnormal, so that the safety of the circuit breaker is ensured.

Although the breaker opening and closing coil protection device can further guarantee the safety of a breaker working circuit through the opening and closing coil protection component, the device also has the following problems when in use: the device comprises upper cover, base, binding post and divide-shut brake coil protection subassembly, divide-shut brake coil protection subassembly encapsulation department between upper cover and base, and the upper cover knot is placed in on the base, and this mounting means makes the connection stability between upper cover and the base relatively poor for the upper cover can lead to the direct naked injury that receives of inside divide-shut brake coil protection subassembly under the circumstances such as receiving unexpected and colliding with extremely easily appearing the circumstances that drops, in view of this, we propose a divide-shut brake coil protection device.

Disclosure of utility model

The utility model aims to provide a switching-on/off coil protection device which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a switching-on and switching-off coil protection device comprises a coil protector;

The coil protector comprises a bottom plate, a base plate is arranged at the center of the top of the bottom plate, and a split coil protection assembly is arranged at the top of the base plate; binding post rows are arranged at two sides of the backing plate;

Protrusions are arranged at the front end and the rear end of the top of the bottom plate, a notch is formed in the center of the protrusion, sliding cavities are formed in the two side walls of the notch, first springs are fixed in the sliding cavities, a sliding block is further arranged in the sliding cavities in a sliding mode, one end of the sliding block protrudes into the notch, and one end of the first spring abuts against the sliding block;

A detachable upper cover is arranged above the bottom plate, fixed blocks are fixed at the bottom ends of the front and rear outer walls of the upper cover and are inserted into the gaps, clamping grooves are formed in the two side walls of the fixed blocks, and one end of the sliding block is in clamping fit with the clamping grooves; elastic pieces are arranged at the four corners of the inner cavity of the upper cover.

As the preferable technical scheme of the utility model, the elastic piece comprises an ear plate fixedly connected with the inner wall of the upper cover, a connecting rod is slidably arranged at the center of the ear plate, two ends of the connecting rod are coaxially fixed with limiting blocks, the lower limiting blocks are abutted against the top of the backing plate, second springs are sleeved on the connecting rod, and two ends of the second springs are abutted against the lower limiting blocks and the ear plate respectively.

As a preferable technical scheme of the utility model, the size of the pad plate is matched with the size of the bottom opening of the upper cover, and the thickness of the pad plate is 0.6-0.8cm.

As the preferable technical scheme of the utility model, the upper cover and the fixed block are of an integrated structure, and the upper cover and the fixed block are manufactured products made of aluminum alloy materials.

As the preferable technical scheme of the utility model, the top of the bulge is provided with the connecting groove, the deflector rod is slidably arranged in the connecting groove, and the bottom end of the deflector rod is fixedly connected with the sliding block.

As the preferable technical scheme of the utility model, the wiring terminal row is fixedly connected with the top surface of the bottom plate through bolts, and a plurality of wiring screws are further connected to the wiring terminal row in a threaded manner.

As a preferable technical scheme of the utility model, the size of the fixing block is matched with the size of the notch, and the fixing block and the notch are positioned on the same vertical plane.

As the preferable technical scheme of the utility model, the bottom plate and the backing plate are of an integrated structure, and the bottom plate and the backing plate are manufactured products made of plastic materials.

Compared with the prior art, the utility model has the beneficial effects that:

1. Coil protector through setting up: the upper cover is provided with the fixed blocks at two ends, the fixed blocks are inserted into the gaps between the two bulges, acting force is applied to the sliding block under the elastic action of the first spring, one end of the sliding block is clamped into the clamping groove on the fixed block, and the upper cover can be limited at the top of the bottom plate under the limitation of the sliding block;

2. The sliding block can be separated from the clamping groove by pushing the deflector rod, the limit on the upper cover is conveniently removed, and the upper cover is conveniently detached, so that the split coil protection assembly can be conveniently overhauled in the later period;

3. Through the backing plate that sets up at the bottom plate top, can carry out the bed hedgehopping to split coil protection component, simultaneously because the bottom and the backing plate grafting of upper cover to can improve split coil protection component's waterproof performance.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a part of the structure of the present utility model;

FIG. 3 is a cross-sectional view of a portion of the structure of the present utility model;

FIG. 4 is a cross-sectional view of a projection of the present utility model;

FIG. 5 is a schematic view of the structure of the upper cover of the present utility model;

Fig. 6 is a schematic structural view of an elastic member in the present utility model.

In the figure:

1. A coil protector; 10. a bottom plate; 101. a backing plate; 11. a protrusion; 111. a notch; 112. a sliding cavity; 113. a connecting groove; 12. a terminal block; 13. a split coil protection assembly; 14. a slide block; 141. a deflector rod; 15. a first spring; 16. an upper cover; 161. a fixed block; 1611. a clamping groove; 17. an elastic member; 170. ear plates; 171. a connecting rod; 172. a limiting block; 173. and a second spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment provides a technical scheme:

Referring to fig. 1-6, a switching-on/off coil protection device includes a coil protector 1. The coil protector 1 comprises a bottom plate 10, a base plate 101 is arranged at the center of the top of the bottom plate 10, and a split coil protection assembly 13 is arranged at the top of the base plate 101; the two sides of the backing plate 101 are provided with wiring terminal rows 12; the top of the bottom plate 10 is provided with bulges 11 at the front end and the rear end, the bulges 11 are fixedly connected with the bottom plate 10 through bolts, a gap 111 is formed in the center of each bulge 11, sliding cavities 112 are formed in the two side walls of each gap 111, first springs 15 are fixed in the sliding cavities 112, a sliding block 14 is also slidably arranged in each sliding cavity 112, one end of each sliding block 14 protrudes into each gap 111, and one end of each first spring 15 abuts against each sliding block 14; a detachable upper cover 16 is arranged above the bottom plate 10, fixed blocks 161 are fixed at the bottom ends of the front and rear outer walls of the upper cover 16, the fixed blocks 161 are inserted into the gaps 111, clamping grooves 1611 are formed in two side walls of the fixed blocks 161, and one end of the sliding block 14 is matched with the clamping grooves 1611 in a clamping manner; the inner cavities of the upper cover 16 are provided with elastic pieces 17 at four corners.

Further, the elastic member 17 includes an ear plate 170 fixedly connected to the inner wall of the upper cover 16, a connecting rod 171 is slidably mounted in the center of the ear plate 170, two ends of the connecting rod 171 are coaxially fixed with a limiting block 172, the lower limiting block 172 abuts against the top of the pad 101, the connecting rod 171 is sleeved with a second spring 173, and two ends of the second spring 173 abut against the lower limiting block 172 and the ear plate 170 respectively; when the upper cover 16 is covered on the top of the bottom plate 10, the second spring 173 is in a compressed state, and when the restriction on the fixing block 161 is released, the upper cover 16 can be lifted up under the elastic action of the second spring 173, so that the upper cover 16 can be conveniently and rapidly detached.

In this embodiment, the size of the pad 101 is adapted to the size of the bottom opening of the upper cover 16, and the thickness of the pad 101 is 0.6-0.8cm, and the preferred thickness of the pad 101 is 0.7cm, and the design can raise the split coil protection assembly 13 by the pad 101, so that the waterproof performance of the split coil protection assembly 13 can be improved by matching with the upper cover 16.

In this embodiment, the upper cover 16 and the fixing block 161 are integrally formed, and the upper cover 16 and the fixing block 161 are made of aluminum alloy, and the integrally formed upper cover 16 and fixing block 161 have better structural strength, so that the upper cover 16 and the fixing block 161 are firmly connected, and the upper cover 16 can be stably fixed after the fixing block 161 is fixed.

In this embodiment, the top of the protrusion 11 is provided with the connecting groove 113, the driving lever 141 is slidably mounted in the connecting groove 113, and the bottom end of the driving lever 141 is fixedly connected with the sliding block 14, and the driving lever 141 is arranged to facilitate the sliding block 14 to move horizontally, so that the sliding block 14 is conveniently clamped with or separated from the clamping groove 1611, and the fixing block 161 is conveniently dismounted.

In this embodiment, the terminal block 12 is fixedly connected to the top surface of the bottom plate 10 by bolts, and a plurality of terminal screws are further screwed on the terminal block 12, so that the design is convenient for connecting wires through the terminal block 12.

In this embodiment, the size of the fixing block 161 is matched with the size of the notch 111, and the fixing block 161 and the notch 111 are located on the same vertical plane, which is beneficial to ensuring the stability of the fixing block 161 in the notch 111 and avoiding the shaking of the upper cover 16.

In this embodiment, the bottom plate 10 and the pad plate 101 are integrally formed, and the bottom plate 10 and the pad plate 101 are made of plastic materials, so that the integrally formed bottom plate 10 and pad plate 101 have better structural strength, the connection strength of the bottom plate 10 and the pad plate 101 is ensured, and the plastic material has the advantage of insulation, so that the use safety of the device is ensured.

It should be noted that, the split coil protection assembly 13 in this embodiment is a conventional technology, and its technical principle is well known to the workers in the field, and will not be described herein.

When the upper cover 16 is mounted, a user pushes the shift lever 141 from the middle to both sides, the shift lever 141 pushes the slide block 14 to slide along the slide cavity 112, the first spring 15 is compressed by the slide block 14, at this time, one end of the slide block 14 is retracted into the slide cavity 112, then the user inserts the fixing blocks 161 at both ends of the upper cover 16 in alignment with the notch 111, at this time, the bottom opening of the upper cover 16 passes through the pad 101 and covers the outside of the split coil protection assembly 13, at the same time, the fixing blocks 161 are inserted into the notch 111, then the user releases the shift lever 141, under the elastic action of the first spring 15, one end of the slide block 14 is inserted into the clamping groove 1611, the fixing blocks 161 are fixed in the notch 111, the upper cover 16 is fixed at the top of the bottom plate 10, and the upper cover 16 is assembled.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a divide, closing coil protection device, includes coil protector (1), its characterized in that:

The coil protector (1) comprises a bottom plate (10), a base plate (101) is arranged at the center of the top of the bottom plate (10), and a split coil protection assembly (13) is arranged at the top of the base plate (101); binding post rows (12) are arranged at two sides of the backing plate (101);

The top of the bottom plate (10) is provided with bulges (11) at the front end and the rear end, a notch (111) is formed in the center of each bulge (11), sliding cavities (112) are formed in two side walls of each notch (111), first springs (15) are fixed in the sliding cavities (112), sliding blocks (14) are further arranged in the sliding cavities (112) in a sliding manner, one ends of the sliding blocks (14) protrude into the notches (111), and one ends of the first springs (15) are abutted against the sliding blocks (14);

A detachable upper cover (16) is arranged above the bottom plate (10), fixed blocks (161) are fixed at the bottom ends of the front and rear outer walls of the upper cover (16), the fixed blocks (161) are inserted into the gaps (111), clamping grooves (1611) are formed in the two side walls of the fixed blocks (161), and one end of the sliding block (14) is matched with the clamping grooves (1611) in a clamping mode; elastic pieces (17) are arranged at the four corners of the inner cavity of the upper cover (16).

2. The opening and closing coil protection device according to claim 1, wherein: the elastic piece (17) comprises an ear plate (170) fixedly connected with the inner wall of the upper cover (16), a connecting rod (171) is slidably arranged at the center of the ear plate (170), limiting blocks (172) are coaxially fixed at two ends of the connecting rod (171), the limiting blocks (172) below are abutted against the top of the base plate (101), second springs (173) are sleeved on the connecting rod (171), and two ends of each second spring (173) are abutted against the limiting blocks (172) below and the ear plate (170) respectively.

3. The opening and closing coil protection device according to claim 1, wherein: the size of the backing plate (101) is matched with the size of the bottom opening of the upper cover (16), and the thickness of the backing plate (101) is 0.6-0.8cm.

4. The opening and closing coil protection device according to claim 1, wherein: the upper cover (16) and the fixed block (161) are of an integrated structure, and the upper cover (16) and the fixed block (161) are manufactured products made of aluminum alloy materials.

5. The opening and closing coil protection device according to claim 1, wherein: the top of protruding (11) has all been seted up spread groove (113), and slidable mounting has driving lever (141) in spread groove (113), and the bottom and the slider (14) fixed connection of driving lever (141).

6. The opening and closing coil protection device according to claim 1, wherein: the wiring terminal strip (12) is fixedly connected with the top surface of the bottom plate (10) through bolts, and a plurality of wiring screws are further connected to the wiring terminal strip (12) in a threaded mode.

7. The opening and closing coil protection device according to claim 1, wherein: the size of the fixing block (161) is matched with the size of the notch (111), and the fixing block (161) and the notch (111) are positioned on the same vertical plane.

8. The opening and closing coil protection device according to claim 1, wherein: the base plate (10) and the backing plate (101) are of an integrated structure, and the base plate (10) and the backing plate (101) are manufactured products made of plastic materials.