CN211293033U - Contactless contactor short-circuit prevention device - Google Patents

Abstract

The utility model relates to a contactless contactor prevents short circuit device, including contactor body, contactor body's bottom is connected with contact head one, and the output of contact head one is pegged graft and is had connecting wire one, and connecting wire one is kept away from the one end of contact head one and is pegged graft and have the relay, and the top of contact head one is pegged graft and is had contact head two, and two right-hand member interfaces of contact head are pegged graft and are had connecting wire two, and connecting wire two keeps away from the one end of contact head two and pegs graft at the right side port of relay, and the output electricity of relay is connected with the motor. When the short circuit's situation appears in this, the electric current can increase to the switch-on relay for motor and alarm circular telegram, and then play the effect of warning, the motor rotates simultaneously, drives the screw rod and rotates and move upward, and then drives contact two and contact one disconnection, thereby has played the guard action.

Description

Contactless contactor short-circuit prevention device

Technical Field

The utility model relates to a contactless contactor technical field specifically is a contactless contactor prevents short circuit device.

Background

The contact head of the contactless contactor on the current market is generally fixed together through suction, and under no external force effect again, it can be in the electrical connection state all the time, thereby the condition that the contactor was burnt out can be caused to the electric current can increase under the condition that appears the short circuit.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a contactless contactor prevents short-circuit device reaches the purpose of protection when the short circuit.

In order to achieve the above object, the utility model provides a following technical scheme: a contactless contactor short circuit prevention device comprises a contactor body, wherein the bottom of the contactor body is connected with a first contact, the output end of the first contact is spliced with a first connecting wire, one end, far away from the first contact, of the first connecting wire is spliced with a relay, the top of the first contact is spliced with a second contact, a right end interface of the second contact is spliced with a second connecting wire, one end, far away from the second contact, of the second connecting wire is spliced at a right end port of the relay, the output end of the relay is electrically connected with a motor, the output end of the relay is electrically connected with an alarm, a screw rod is fixedly connected with a top screw of the second contact, a threaded hole is formed in the top of the contactor body, a left supporting plate is fixedly connected with the top screw of the contactor body, and a right screw positioned on the left supporting plate is fixedly connected with a right supporting, the right-hand member face of left side supporting plate and the left end face of right side supporting plate have all seted up the spout, motor sliding connection is at the inner wall of spout, the top that the transmission end of motor just is located contactor body passes through retainer plate fixedly connected with shaft coupling, the one end that the motor output was kept away from to the shaft coupling passes through retainer plate fixedly connected with screw rod, the helicoid and the screw hole threaded connection of screw rod, the one end that the motor was kept away from to the screw rod is passed the inside screw connection that the screw hole extended to contactor body and is at the top of contact head two, alarm screw fixed connection is at the top of right side.

Preferably, the motor and the alarm are connected in parallel, and the motor and the alarm are both connected in series with the relay.

Preferably, the left and right support plates are symmetrical to each other along an axis of the screw hole.

Preferably, the distance between the left end surface of the right support plate and the right end surface of the left support plate is matched with the size of the motor in the left-right direction.

Preferably, two through holes are formed in the top of the contactor body, and the first connecting wire and the second connecting wire penetrate through the two through holes respectively and extend to the upper side of the contactor body.

Preferably, the alarm consists of a sounding module and a bulb part, and is in the prior art.

The utility model provides a contactless contactor prevents short circuit device. The method has the following beneficial effects: when the short circuit condition appears, the current can increase to the switch-on relay makes motor and alarm circular telegram, and then plays the effect of reporting to the police, and the motor rotates simultaneously, drives the screw rod and rotates and move up, and then drives contact two and contact one disconnection, thereby has played the guard action.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a cross-sectional view taken along line a-a of fig. 2 in accordance with the present invention;

fig. 4 is an enlarged view of fig. B according to the present invention.

In the figure: the contactor comprises a contactor body 1, a contact head I2, a contact head II 3, a threaded hole 4, a screw rod 5, a left supporting plate 6, a right supporting plate 7, a sliding groove 8, a motor 9, a coupler 10, a connecting wire II 11, a connecting wire I12, a relay 13 and an alarm 14.

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 without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a contactless contactor short circuit prevention device comprises a contactor body 1, wherein the top of the contactor body 1 is provided with two through holes, a first connecting lead 12 and a second connecting lead 11 respectively penetrate through the two through holes and extend to the upper part of the contactor body 1, the bottom of the contactor body 1 is connected with a first contact 2, the output end of the first contact is inserted with the first connecting lead 12, one end, away from the first contact 2, of the first connecting lead 12 is inserted with a relay 13, the relay 13 is in a normally open state and is automatically switched on when the current is larger, in the prior art, the top of the first contact 2 is inserted with a second contact 3, a right end interface of the second contact 3 is inserted with the second connecting lead 11, one end, away from the second contact 3, of the second connecting lead 11 is inserted at a right end port of the relay 13, the output end of the relay 13 is electrically connected with a motor 9, the motor 9 is connected with an alarm 14 in parallel, and, when the contactor is used, when a short circuit occurs, the current is increased, so that an internal circuit of the relay 13 is switched on, the motor 9 and the alarm 14 are powered on, an alarm effect is achieved, meanwhile, the motor 9 rotates to drive the coupler 10 to rotate and further drive the screw rod 5 to rotate and move upwards, and further drive the contact head II 3 to be disconnected with the contact head I2, so that a protection effect is achieved, the output end of the relay 13 is electrically connected with the alarm 14, the alarm 14 consists of a buzzer module and a bulb part, in the prior art, the screw rod 5 is fixedly connected with the top of the contact head II 3, the threaded hole 4 is formed in the top of the contactor body 1, the left support plate 6 is fixedly connected with the top screw of the contactor body 1, the left support plate 6 and the right support plate 7 are mutually symmetrical along the axis of the threaded hole 4, the right support plate 7 is fixedly connected with the top of, distance and the motor 9 left and right sides direction's of the left end face of right side support plate 7 and the right-hand member face of left side support plate 6 size phase-match, spout 8 has all been seted up to left side support plate 6's right-hand member face and right side support plate 7's left end face, motor 9 sliding connection is at the inner wall of spout 8, motor 9's transmission end just is located contactor body 1's top and passes through retainer plate fixedly connected with shaft coupling 10, retainer plate fixedly connected with screw rod 5 is passed through to the one end that motor 9 output was kept away from to shaft coupling 10, screw rod 5's helicoid and 4 threaded connection of screw hole, screw rod 5 keeps away from motor 9's one end and passes screw hole 4 and extend to contactor body 1's inside screwed connection at contact two.

The working principle is as follows: during the use, when the situation of short circuit appears, the electric current can increase to the internal circuit of switch-on relay 13 makes motor 9 and alarm 14 circular telegram, and then plays the effect of reporting to the police, and motor 9 rotates simultaneously, drives shaft coupling 10 and rotates and then drive screw rod 5 and rotate and move up, and then drives contact two 3 and contact one 2 disconnection, thereby has played the guard action.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a contactless contactor prevents short circuit device, includes contactor body (1), its characterized in that: the contactor comprises a contactor body (1), and is characterized in that the bottom of the contactor body (1) is connected with a first contact head (2), the output end of the first contact head is spliced with a first connecting wire (12), one end, far away from the first contact head (2), of the first connecting wire (12) is spliced with a relay (13), the top of the first contact head (2) is spliced with a second contact head (3), a right end interface of the second contact head (3) is spliced with a second connecting wire (11), one end, far away from the second contact head (3), of the second connecting wire (11) is spliced at a right side port of the relay (13), the output end of the relay (13) is electrically connected with a motor (9), the output end of the relay (13) is electrically connected with an alarm (14), a top screw of the second contact head (3) is fixedly connected with a screw rod (5), and the top of the, top screw fixedly connected with left backup pad (6) of contactor body (1), the top of contactor body (1) just is located right-hand screw fixedly connected with right side backup pad (7) of left side backup pad (6), spout (8) have all been seted up to the right-hand screw fixedly connected with right side backup pad (7) of the right-hand member face of left side backup pad (6) and the left end face of right side backup pad (7), motor (9) sliding connection is at the inner wall of spout (8), the transmission end of motor (9) just is located the top of contactor body (1) and passes through retainer plate fixedly connected with shaft coupling (10), the one end that motor (9) output was kept away from in shaft coupling (10) passes through retainer plate fixedly connected with screw rod (5), the helicoid and screw hole (4) threaded connection of screw rod (5), the one end that motor (9) were kept away from in screw rod (5) passes screw hole (4) and extends to the inside screw connection And the alarm (14) is fixedly connected to the top of the right side support plate (7) through a screw.

2. The short-circuit preventing device of a contactless contactor according to claim 1, wherein: the motor (9) and the alarm (14) are connected in parallel, and the motor (9) and the alarm (14) are connected in series with the relay (13).

3. The short-circuit preventing device of a contactless contactor according to claim 1, wherein: the left supporting plate (6) and the right supporting plate (7) are symmetrical to each other along the axis of the threaded hole (4).

4. The short-circuit preventing device of a contactless contactor according to claim 1, wherein: the distance between the left end face of the right supporting plate (7) and the right end face of the left supporting plate (6) is matched with the size of the motor (9) in the left-right direction.

5. The short-circuit preventing device of a contactless contactor according to claim 1, wherein: two through holes are formed in the top of the contactor body (1), and the connecting wire I (12) and the connecting wire II (11) penetrate through the two through holes respectively and extend to the upper side of the contactor body (1).

6. The short-circuit preventing device of a contactless contactor according to claim 1, wherein: the alarm (14) consists of a sounding module and a bulb part, and belongs to the prior art.

Images