CN212486404U

CN212486404U - Vacuum electromagnetic starter with electric leakage locking protection circuit

Info

Publication number: CN212486404U
Application number: CN202020970648.2U
Authority: CN
Inventors: 周旭旺; 赵连山
Original assignee: Guizhou Zhongkuang Hengtai Mining Equipment Co ltd
Current assignee: Guizhou Zhongkuang Hengtai Mining Equipment Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-02-05
Anticipated expiration: 2030-06-01

Abstract

The utility model discloses a vacuum electromagnetic starter with electric leakage shutting protection circuit relates to vacuum electromagnetic starter technical field. The vacuum electromagnetic starter with the electric leakage locking protection circuit comprises a starter body, wherein a shell is welded at the position, close to one side edge, of the inner bottom surface of the starter body, and a central processing unit is fixed on the inner surface wall of one side of the shell. This vacuum electromagnetic starter with electric leakage shutting protection circuit, current on to inside thread is detected through the current detector, when detecting the electric current unusual, make the current detector carry central processing unit with the signal, make central processing unit control electric telescopic handle carry out timely moving down, make insulating breaker plate slide between two arc slides and move down, thereby make first metal conducting strip and second metal conducting strip separation, carry out the outage with inside thread and external conductor and handle, in the use, can be timely carry out timely outage to the electric leakage condition of starter body and handle.

Description

Vacuum electromagnetic starter with electric leakage locking protection circuit

Technical Field

The utility model relates to a vacuum electromagnetic starter technical field specifically is a vacuum electromagnetic starter with electric leakage shutting protection circuit.

Background

The vacuum electromagnetic starter is used for start-stop control and motor protection of a coal mine underground fully-mechanized mining equipment motor, but in the prior art, the vacuum electromagnetic starter can generate electric leakage in the using process, the electric leakage condition of the vacuum electromagnetic starter is mainly the electric leakage condition of an internal main line and an external lead, so that the short circuit condition of an electronic device inside the vacuum electromagnetic starter can be greatly increased, the vacuum electromagnetic starter can be damaged, and the maintenance cost of a user is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a vacuum electromagnetic starter with electric leakage shutting protection circuit detects the junction of external conductor and inside thread through adopting current detection appearance, is convenient for carry out timely outage to the condition of electric leakage and handles.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a vacuum electromagnetic starter with a leakage locking protection circuit comprises a starter body, wherein a shell is welded at the position, close to one side edge, of the inner bottom surface of the starter body, a central processing unit is fixed on the inner surface wall of one side of the shell, two insulation plates are welded at the position, close to one side edge, of the bottom of the shell in the vertical direction, two insulation springs are welded on the opposite outer surfaces of the two insulation plates in the vertical direction, the number of the insulation springs is four, the insulation springs are divided into two groups, a first metal conducting strip is fixed at one end of one group of the two insulation springs, a second metal conducting strip is fixed at one end of the other group of the two insulation springs, an internal main line is fixed at the center of the outer surface of one side of the second metal conducting strip, a current detector is connected inside the internal main line, the welding of table wall center department has insulating fixed plate in one side of casing, the battery is installed at insulating fixed plate's top, one side surface of battery is close to top edge and is provided with the interface that charges, and the one end of the interface that charges extends to the outside of starter body, electric telescopic handle is installed along vertical direction in the bottom of insulating fixed plate, electric telescopic handle's bottom welding has insulating breaker plate.

Preferably, the outer surfaces of the four insulating springs are all sleeved with insulating rubber tubes, one ends of the insulating rubber tubes are adhered to the outer surface of the insulating plate, and the other ends of the insulating rubber tubes are adhered to the outer surface of the first metal conducting strip or the outer surface of the second metal conducting strip.

Preferably, the first metal conducting strip and the second metal conducting strip are attached to each other, and arc-shaped sliding plates are fixed at the tops of the first metal conducting strip and the second metal conducting strip.

Preferably, an external lead is fixed at the center of the outer surface of one side of the first metal conducting strip, and one end of the external lead extends to the outside of the starter body.

The utility model provides a vacuum electromagnetic starter with electric leakage shutting protection circuit. The method has the following beneficial effects:

this vacuum electromagnetic starter with electric leakage shutting protection circuit, current on to inside thread through the current detection appearance detects, when detecting the electric current unusual, make the current detection appearance carry central processing unit with the signal, thereby make central processing unit control electric telescopic handle carry out timely moving down, make insulating board slide between two arc slide and move down, thereby make first metal conducting strip and second metal conducting strip separation, can be better carry out the outage with external conductor to inside thread and handle, in the use, can be timely carry out timely outage to the electric leakage condition of starter body and handle, thereby the internal circuit of protection starter body that can be better.

Drawings

Fig. 1 is a front sectional view of the present invention;

fig. 2 is an enlarged view of a portion of a section a in fig. 1 according to the present invention;

fig. 3 is a top sectional view of a portion of the insulating panel of the present invention.

In the figure: 1. a starter body; 2. a housing; 3. a central processing unit; 4. an internal main line; 5. a current detector; 6. an insulating plate; 7. connecting a lead externally; 8. an insulation blocking plate; 9. an electric telescopic rod; 10. an insulating fixing plate; 11. a charging interface; 12. a storage battery; 13. a first metal conductive sheet; 14. an arc-shaped sliding plate; 15. a second metal conductive sheet; 16. an insulating rubber tube; 17. an insulating spring.

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.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a vacuum electromagnetic starter with a leakage locking protection circuit comprises a starter body 1, a shell 2 is welded at the position, close to one side edge, of the inner bottom surface of the starter body 1, the shell 2 can better protect internal equipment, a central processing unit 3 is fixed on the inner surface wall of one side of the shell 2, the central processing unit 3 is electrically connected with a current detector 5 and an electric telescopic rod 9 through leads respectively, two insulating plates 6 are welded at the position, close to one side edge, of the bottom of the shell 2 in the vertical direction, the insulating plates 6 can better fix the positions of insulating springs 17, two insulating springs 17 are welded on the opposite outer surfaces of the two insulating plates 6 in the vertical direction, the number of the insulating springs 17 is four, the insulating springs are divided into two groups, a first metal conducting strip 13 is fixed at one end of one group of the two insulating springs 17, a second metal conducting strip 15 is fixed at one end of the other, the first metal conducting strip 13 and the second metal conducting strip 15 are attached by the elastic force of the insulating spring 17, thereby facilitating the electrical connection between the external lead 7 and the internal main line 4, detecting the current on the internal main line 4 by the current detector 5, when the current abnormality is detected, the current detector 5 transmits a signal to the central processing unit 3, thereby leading the central processor 3 to control the electric telescopic rod 9 to move downwards in time, leading the insulation blocking plate 8 to slide between the two arc-shaped sliding plates 14 to move downwards, thereby separating the first metal conducting strip 13 from the second metal conducting strip 15, better performing power-off treatment on the internal main wire 4 and the external lead 7, in use, the power-off condition of the starter body 1 can be timely subjected to power-off processing, so that the internal circuit of the starter body 1 can be better protected.

The outer surfaces of the four insulating springs 17 are all sleeved with insulating rubber tubes 16, one ends of the insulating rubber tubes 16 are adhered to the outer surface of the insulating plate 6, the other ends of the insulating rubber tubes 16 are adhered to the outer surfaces of the first metal conducting plate 13 or the second metal conducting plate 15, the insulating rubber tubes 16 can better protect the insulating springs 17, the first metal conducting plate 13 and the second metal conducting plate 15 are adhered to each other, arc-shaped sliding plates 14 are fixed at the tops of the first metal conducting plate 13 and the second metal conducting plate 15 respectively, the arc-shaped sliding plates 14 facilitate the insulating blocking plates 8 to slide downwards so that the first metal conducting plate 13 and the second metal conducting plate 15 are separated to facilitate power-off treatment, an external lead 7 is fixed at the center of the outer surface of one side of the first metal conducting plate 13, one end of the external lead 7 extends to the outside of the starter body 1, and the external lead 7 extends to the outside of the starter body 1 through the insulating, an inner main wire 4 is fixed at the center of the outer surface of one side of the second metal conducting strip 15, the inner main wire 4 penetrates through the insulating plate 6, the inner part of the inner main wire 4 is connected with a current detector 5, the current detector 5 adopts a model of CS9975L, the bottom of the current detector 5 is fixedly connected with the top of the shell 2, the current of the inner main wire 4 can be detected in real time through the current detector 5, an insulating fixing plate 10 is welded at the center of the inner surface wall of one side of the shell 2, the insulating fixing plate 10 can better fix the positions of the storage battery 12 and the electric telescopic rod 9, the storage battery 12 is installed at the top of the insulating fixing plate 10, the storage battery 12 is respectively and electrically connected with the electric telescopic rod 9, the current detector 5 and the central processing unit 3 through wires, independent power supply processing can be better performed, a charging interface 11 is, and the one end of interface 11 that charges extends to starter body 1's outside, can be better charge to battery 12 through interface 11 that charges, electric telescopic handle 9 is installed along vertical direction in the bottom of insulating fixed plate 10, electric telescopic handle 9 adopts NKLA 34's model, electric telescopic handle 9's bottom welding has insulating breaker 8, electric telescopic handle 9 moves down, be convenient for drive insulating breaker 8 and move down, thereby make insulating breaker 8 slide in between two arc slides 14, be convenient for separate first metal conducting strip 13 and second metal conducting strip 15, thereby can be better carry out timely outage to the condition of electric leakage.

During the use, current detection on inside thread 4 through current detection appearance 5, when detecting the electric current unusual, current detection appearance 5 carries central processing unit 3 with the signal, through the extension of central processing unit 3 control electric telescopic handle 9, make insulating breaker plate 8 move down, thereby make insulating breaker plate 8 slide in between two arc slide 14, thereby make first metal conducting strip 13 and the separation of second metal conducting strip 15, be convenient for make inside thread 4 and external conductor 7 separation, thereby can be better carry out the outage to starter body 1 and handle, be convenient for carry out earth leakage protection to starter body 1.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A vacuum electromagnetic starter with earth leakage blocking protection circuit, comprising a starter body (1), characterized in that: the starter is characterized in that a shell (2) is welded at the position, close to one side edge, of the inner bottom surface of the starter body (1), a central processing unit (3) is fixed on the inner surface wall of one side of the shell (2), two insulation plates (6) are welded at the position, close to one side edge, of the bottom of the shell (2) in the vertical direction, two insulation springs (17) are welded on the opposite outer surfaces of the two insulation plates (6) in the vertical direction, the number of the insulation springs (17) is four, the insulation springs are divided into two groups, a first metal conducting strip (13) is fixed at one end of one group of two insulation springs (17), a second metal conducting strip (15) is fixed at one end of the other group of two insulation springs (17), an inner main line (4) is fixed at the center of the outer surface of one side of the second metal conducting strip (, and the bottom of current detection appearance (5) and the top fixed connection of casing (2), the welding of table wall center department has insulating fixed plate (10) in one side of casing (2), battery (12) are installed at the top of insulating fixed plate (10), one side surface of battery (12) is close to top edge and is provided with interface (11) that charges, and the one end of interface (11) that charges extends to the outside of starter body (1), electric telescopic handle (9) are installed along vertical direction in the bottom of insulating fixed plate (10), the bottom welding of electric telescopic handle (9) has insulating rupture plate (8).

2. A vacuum electromagnetic starter with earth leakage blocking protection circuit as claimed in claim 1, wherein: the outer surface of the four insulation springs (17) is sleeved with an insulation rubber tube (16), one end of the insulation rubber tube (16) is adhered to the outer surface of the insulation plate (6), and the other end of the insulation rubber tube (16) is adhered to the outer surface of the first metal conducting strip (13) or the second metal conducting strip (15).

3. A vacuum electromagnetic starter with earth leakage blocking protection circuit as claimed in claim 1, wherein: the first metal conducting strip (13) and the second metal conducting strip (15) are attached to each other, and arc-shaped sliding plates (14) are fixed at the tops of the first metal conducting strip (13) and the second metal conducting strip (15).

4. A vacuum electromagnetic starter with earth leakage blocking protection circuit as claimed in claim 1, wherein: an external lead (7) is fixed at the center of the outer surface of one side of the first metal conducting strip (13), and one end of the external lead (7) extends to the outside of the starter body (1).