CN214624640U

CN214624640U - Special current transformer for motor car

Info

Publication number: CN214624640U
Application number: CN202023288111.7U
Authority: CN
Inventors: 毕风雷; 毕永翔
Original assignee: Suzhou Jingyi Switch Co ltd
Current assignee: Suzhou Jingyi Switch Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-05
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a special current transformer of motor car, comprising a base plate, the top of bottom plate is provided with the current transformer body, first standing groove has been seted up to the inner wall of protection casing, the other end of first spring is fixed with the lug, the second standing groove has been seted up at the top of bottom plate, bracing piece through connection has the roof, the spout has been seted up to the inner wall of roof. This special current transformer of motor car, be provided with the second spring, guard plate and third spring, second spring through setting up, guard plate and third spring, the impact force of object to the guard plate has been reduced, the object has been prevented from leading to the fact the harm to the current transformer body, when the impact force of object is great, make the roof receive the buffering and compress the second spring, guarantee the stability of spacing ring through the bracing piece, prevent that the spacing ring from taking place the skew, and then prevented that the object from leading to the fact direct harm to protection casing and current transformer body, the life of current transformer body has been improved.

Description

Special current transformer for motor car

Technical Field

The utility model relates to a current transformer technical field specifically is a special current transformer of motor car.

Background

The current transformer is an instrument for converting a large primary side current into a small secondary side current to measure according to the electromagnetic induction principle, and consists of a closed iron core and a winding, wherein the primary side winding has few turns and is connected in series in a circuit of the current to be measured, so that all the current of the circuit always flows through the current transformer, the secondary side winding has more turns and is connected in series in a measuring instrument and a protection loop, and a secondary side loop of the current transformer is always closed when the current transformer works, so that the impedance of the series coil of the measuring instrument and the protection loop is very small, the working state of the current transformer is close to short circuit, the current transformer converts the large primary side current into the small secondary side current to measure, and the secondary side cannot be opened.

Current transformer uses very extensively in people's daily life, wherein the special current transformer of motor car, the known special current transformer of motor car generally has the relatively poor problem of protective effect on the existing market, because current transformer uses on the trolley-bus, and then just can't bump and article collision, often lead to current transformer to take place the phenomenon of harm easily, and then need the user to carry out the maintenance of indefinite time, extravagant user's limited time, user's work efficiency has been reduced, when user need maintain current transformer, generally need dismantle the protective housing, general protective housing is generally not convenient for user and is dismantled fast, and then user's maintenance efficiency has been reduced, can't satisfy user's daily work demand.

Therefore, a current transformer special for a motor car is provided so as to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special current transformer of motor car to solve the special current transformer of motor car on the existing market that above-mentioned background art provided and generally have the relatively poor problem of protective effect.

For the purpose that realizes that this special current transformer of motor car protective effect is good, the utility model provides a following technical scheme: the utility model provides a special current transformer of motor car, includes the bottom plate, the top of bottom plate is provided with the current transformer body, and the top of bottom plate has seted up the draw-in groove to the inner wall of draw-in groove is provided with the protection casing, first standing groove has been seted up to the inner wall of protection casing, and the inner wall of first standing groove is provided with first spring, the other end of first spring is fixed with the lug, and the outer wall of lug is provided with the recess, the second standing groove has been seted up at the top of bottom plate, and the inner wall of second standing groove is provided with the bracing piece to the outer wall of bracing piece is provided with the second spring, bracing piece through connection has the roof, and the bottom of roof is fixed with the spacing ring, the spout has been seted up to the inner wall of roof, and the inner wall of spout is provided with the guard plate to the bottom of guard plate is fixed with the third spring.

Preferably, the inner wall of draw-in groove is provided with the protection casing, and draw-in groove and protection casing constitution block structure, the draw-in groove has been seted up at the top of bottom plate, and the bottom plate passes through the draw-in groove and constitutes integrated structure with the protection casing.

Preferably, a protruding block is fixed on the left side of the first spring, the first spring and the protruding block form a lifting structure, a groove is formed in the outer wall of the protruding block, and the groove and the protruding block form a clamping structure.

Preferably, the outer wall of bracing piece is provided with the second spring, and the second spring constitutes elevation structure with the bracing piece to the outer wall through connection of bracing piece has the roof, and the roof passes through the spacing ring and constitutes integrated structure with the second spring.

Preferably, a limiting ring is fixed to the bottom of the top plate.

Preferably, the inner wall of spout is provided with the guard plate, and guard plate and spout constitution sliding construction to the bottom of guard plate is provided with the third spring, and the guard plate constitutes elevation structure with the third spring moreover.

Compared with the prior art, the beneficial effects of the utility model are that: the current transformer special for the bullet train;

1. the second spring, the protection plate and the third spring are arranged, when a user needs to ensure the stability of the current transformer special for the bullet train, through the second spring, the protection plate and the third spring, when an object falls off from the upper part, the object falls on the surface of the protection plate, thereby causing buffer force to the protection plate and driving the third spring to compress so that the protection plate slides along the sliding groove arranged on the inner wall of the top plate, thereby reducing the impact force of the object on the protection plate, preventing the object from damaging the current transformer body, when the impact force of the object is larger, the top plate is buffered by the second spring to compress the second spring, the stability of the limiting ring is ensured by the supporting rod to prevent the limiting ring from deviating, the direct damage of the protective cover and the current transformer body caused by objects is prevented, and the service life of the current transformer body is prolonged;

2. the protective cover is provided with a clamping groove, a first spring and a lug, when a user needs to install and detach the protective cover, the protective cover is inserted into the clamping groove formed in the top of the bottom plate through the clamping groove, the first spring and the lug, the lug is in contact with a groove formed in the inner wall of the bottom plate, the lug is extruded by the clamping groove and is further compressed by the first spring to be placed in a first placing groove formed in the inner wall of the clamping groove, when the protective cover reaches the position of the groove formed in the inner wall of the bottom plate, the first spring recovers due to disappearance of extrusion force in front of the lug, the lug is bounced into the position of the groove, the fixing of the groove is completed, the bottom plate is connected with the protective cover, the installing and detaching processes of the bottom plate and the protective cover by the user are simplified, the limited assembling and detaching time of the user is saved, and the working efficiency of the user is improved, the stability of the whole device is increased.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the connection structure of the bottom plate and the protective cover of the present invention;

FIG. 3 is a schematic top view of the present invention;

fig. 4 is a schematic view of the connecting structure of the chute and the protection plate of the present invention.

In the figure: 1. a base plate; 2. a current transformer body; 3. a card slot; 4. a protective cover; 5. a first placing groove; 6. a first spring; 7. a bump; 8. a groove; 9. a second placing groove; 10. a support bar; 11. a second spring; 12. a limiting ring; 13. a top plate; 14. a chute; 15. a protection plate; 16. and a third spring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a current transformer special for a bullet train comprises a bottom plate 1, a current transformer body 2, a clamping groove 3, a protective cover 4, a first placing groove 5, a first spring 6, a convex block 7, a groove 8, a second placing groove 9, a supporting rod 10, a second spring 11, a limiting ring 12, a top plate 13, a sliding groove 14, a protective plate 15 and a third spring 16, wherein the current transformer body 2 is arranged on the top of the bottom plate 1, the clamping groove 3 is arranged on the top of the bottom plate 1, the protective cover 4 is arranged on the inner wall of the clamping groove 3, the first placing groove 5 is arranged on the inner wall of the protective cover 4, the first spring 6 is arranged on the inner wall of the first placing groove 5, the convex block 7 is fixed on the other end of the first spring 6, the groove 8 is arranged on the outer wall of the convex block 7, the second placing groove 9 is arranged on the top of the bottom plate 1, the supporting rod 10 is arranged on the inner wall of the second placing groove 9, and the second spring 11 is arranged on the outer wall of the supporting rod 10, the supporting rod 10 is connected with a top plate 13 in a penetrating manner, a limiting ring 12 is fixed at the bottom of the top plate 13, a sliding groove 14 is formed in the inner wall of the top plate 13, a protection plate 15 is arranged on the inner wall of the sliding groove 14, and a third spring 16 is fixed at the bottom of the protection plate 15.

The inner wall of draw-in groove 3 is provided with protection casing 4, and draw-in groove 3 constitutes the block structure with protection casing 4, and draw-in groove 3 has been seted up at the top of bottom plate 1, and bottom plate 1 passes through draw-in groove 3 and protection casing 4 constitution integral structure, through the draw-in groove 3 that sets up, has increased the stability of being connected between protection casing 4 and the bottom plate 1, has ensured the security of current transformer body 2.

The left side of first spring 6 is fixed with lug 7, and first spring 6 constitutes elevation structure with lug 7 to the outer wall of lug 7 is provided with recess 8, and recess 8 constitutes the block structure with lug 7 moreover, through the lug 7 that sets up, has made things convenient for the user to dismantle and install protection casing 4 and bottom plate 1, has simplified the user and has improved user's work efficiency to the installation flow of protection casing 4 and bottom plate 1.

The outer wall of bracing piece 10 is provided with second spring 11, and second spring 11 constitutes elevation structure with bracing piece 10 to the outer wall through connection of bracing piece 10 has roof 13, and roof 13 passes through spacing ring 12 and second spring 11 constitution integral structure, through the second spring 11 that sets up, makes roof 13 receive and assaults the back and cushion, has reduced roof 13 and to the extrusion of protection casing 4, has ensured the security of current transformer body 2.

The bottom of roof 13 is fixed with spacing ring 12, and through the spacing ring 12 that sets up, has prevented that second spring 11 from following bracing piece 10 and rising together and causing the dead phenomenon of part card, has increased second spring 11 and is carrying out the stability of during operation, has improved the life of whole device.

The inner wall of spout 14 is provided with guard plate 15, and guard plate 15 constitutes sliding construction with spout 14 to the bottom of guard plate 15 is provided with third spring 16, and guard plate 15 constitutes elevation structure with third spring 16 in addition, through the guard plate 15 that sets up, has prevented that the top from dropping article and causes the harm to current transformer body 2 and protection casing 4, has reduced the impact force that the top article dropped, has improved current transformer body 2's security.

The working principle is as follows: when the special current transformer for the bullet train is used, firstly, the bottom plate 1 is connected with the current transformer body 2, the protective cover 4 is inserted into the clamping groove 3 formed in the top of the bottom plate 1, so that the lug 7 is in contact with the groove 8 formed in the inner wall of the bottom plate 1, the lug 7 is extruded by the clamping groove 3, further, the lug 7 is continuously compressed by the first spring 6 to be in the first placing groove 5 formed in the inner wall of the clamping groove 3, when the protective cover 4 reaches the position of the groove 8 formed in the inner wall of the bottom plate 1, the extrusion force in front of the lug 7 disappears, further, the first spring 6 recovers, the lug 7 bounces into the position of the groove 8, the fixing of the groove 8 is completed, the bottom plate 1 is connected with the protective cover 4, when an object above drops, the lug drops on the surface of the protective plate 15, further, the buffer force is generated on the protective plate 15, and the third spring 16 is driven to compress, make guard plate 15 slide along spout 14 that roof 13 inner wall was seted up, and then reduced the impact force of object to guard plate 15, prevented that the object from causing the harm to current transformer body 2, when the impact force of object is great, through the second spring 11 that sets up, make roof 13 receive the buffering and compress second spring 11, ensure the stability of spacing ring 12 through bracing piece 10, prevent that spacing ring 12 from taking place the skew, and then prevented that the object from causing direct harm to protection casing 4 and current transformer body 2, the life of current transformer body 2 is improved, the user is simplified simultaneously and the installation dismantlement flow to bottom plate 1 and protection casing 4, the limited dismouting time of user has been practiced thrift, user's work efficiency has been improved, the stability of integrated device has been increased.

Thereby completing a series of works. Those not described in detail in this specification are within the skill of the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a special current transformer of motor car, includes bottom plate (1), current transformer body (2), draw-in groove (3), protection casing (4), first standing groove (5), first spring (6), lug (7), recess (8), second standing groove (9), bracing piece (10), second spring (11), spacing ring (12), roof (13), spout (14), guard plate (15) and third spring (16), its characterized in that: the current transformer comprises a bottom plate (1), a current transformer body (2) is arranged at the top of the bottom plate (1), a clamping groove (3) is formed in the top of the bottom plate (1), a protective cover (4) is arranged on the inner wall of the clamping groove (3), a first placing groove (5) is formed in the inner wall of the protective cover (4), a first spring (6) is arranged on the inner wall of the first placing groove (5), a convex block (7) is fixed to the other end of the first spring (6), a groove (8) is formed in the outer wall of the convex block (7), a second placing groove (9) is formed in the top of the bottom plate (1), a supporting rod (10) is arranged on the inner wall of the second placing groove (9), a second spring (11) is arranged on the outer wall of the supporting rod (10), a top plate (13) is connected to the supporting rod (10) in a penetrating mode, a limiting ring (12) is fixed to the bottom of the top plate (13), a sliding groove (14) is formed in the inner wall of the top plate (13), and the inner wall of the sliding chute (14) is provided with a protective plate (15), and the bottom of the protective plate (15) is fixed with a third spring (16).

2. The current transformer special for the bullet train according to claim 1, wherein: the inner wall of draw-in groove (3) is provided with protection casing (4), and draw-in groove (3) constitute the block structure with protection casing (4), draw-in groove (3) have been seted up at the top of bottom plate (1), and bottom plate (1) constitutes integrated structure through draw-in groove (3) and protection casing (4).

3. The current transformer special for the bullet train according to claim 1, wherein: a convex block (7) is fixed on the left side of the first spring (6), the first spring (6) and the convex block (7) form a lifting structure, a groove (8) is formed in the outer wall of the convex block (7), and the groove (8) and the convex block (7) form a clamping structure.

4. The current transformer special for the bullet train according to claim 1, wherein: the outer wall of bracing piece (10) is provided with second spring (11), and second spring (11) and bracing piece (10) constitute elevation structure to the outer wall through connection of bracing piece (10) has roof (13), and roof (13) pass through spacing ring (12) and second spring (11) constitution integral structure.

5. The current transformer special for the bullet train according to claim 1, wherein: a limiting ring (12) is fixed at the bottom of the top plate (13).

6. The current transformer special for the bullet train according to claim 1, wherein: the inner wall of spout (14) is provided with guard plate (15), and guard plate (15) and spout (14) constitute sliding construction to the bottom of guard plate (15) is provided with third spring (16), and guard plate (15) and third spring (16) constitute elevation structure moreover.