CN210866066U - Relay with a movable contact - Google Patents

Abstract

The utility model provides a relay, be in including the relay casing and accept rotating member and electromagnetic component in the relay casing, the relay still include with rotating member links to each other and control the elevating gear that rotating member goes up and down, be equipped with a plurality of first contacts on rotating member's the lateral wall, be equipped with the second contact on the electromagnetic component, the electromagnetic component with the adjacent setting of rotating member, with control after the circular telegram of electromagnetic component rotating member rotates, and according to under elevating gear's the drive second contact with correspond the connection or the disconnection of first contact, the timesharing break-make of control relay. Compared with the prior art, the utility model discloses combine electromagnetic induction and elevating gear to control the connection of different contacts, realized the timesharing on-off control of a relay, reduced the quantity of the relay in the equipment control circuit, the cost is reduced has optimized circuit structure.

Description

Relay with a movable contact

Technical Field

The utility model relates to a relay belongs to the relay field.

Background

A relay is an electric control device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount meets a predetermined requirement. It has an interactive relationship between an input loop and an output loop, is usually applied to an automatic control circuit, and is actually an 'automatic switch' which uses a small current to control a large current to operate. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.

However, due to the limitations of the shape and the internal structure of the conventional relay, a single relay cannot realize the function of time-sharing on-off control, so that the number of relays needs to be increased, and the cost is increased.

In view of the above, there is a need for an improvement of the existing relay to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel relay, this relay have timesharing on-off control's function, can reduce cost.

In order to achieve the above object, the utility model provides a relay, include the relay casing and accept rotatory component and electromagnetic component in the relay casing, the relay still include with rotatory component links to each other and control the elevating gear that rotatory component goes up and down, be equipped with a plurality of first contacts on the lateral wall of rotatory component, be equipped with the second contact on the electromagnetic component, the electromagnetic component with rotatory component is close to the setting, with control after the electromagnetic component circular telegram rotatory component rotates, and according to under elevating gear's the drive the second contact with correspond the connection or the disconnection of first contact, the timesharing break-make of control relay.

As a further improvement of the present invention, the rotating member extends in the vertical direction and is cylindrical, the one end of the lifting device is fixedly connected to the relay housing, the other end of the lifting device is fixedly connected to the bottom of the rotating member.

As a further improvement of the present invention, the first contacts are arranged up and down in the extending direction of the rotating member, and the lifting device is used to control the rotating member to ascend or descend, so as to drive the first contacts located at different heights on the outer side wall of the rotating member to be connected to the second contacts.

As a further improvement of the present invention, the electromagnetic assembly includes an electromagnet, an electromagnetic coil, and an armature, the armature is disposed above the electromagnet, the electromagnetic coil is parallel to the rotation member, the electromagnetic coil is controlled by changing the polarity of the electromagnet after the energization, and the rotation member rotates.

As a further improvement of the present invention, the second contact is connected to the armature through an insulating thin rod.

As a further improvement of the present invention, the electromagnet is disposed under the armature, so that the electromagnetic assembly is controlled after being energized so that the second contact is moved up and down.

As a further improvement of the utility model, the electromagnetic coil is an alternating current electromagnetic coil.

As a further improvement, the both ends of solenoid are equipped with the pin respectively, the pin projection surpasss the relay casing to let in electric current from the outside.

As a further improvement of the utility model, the relay still includes reset spring, reset spring is in encircle the round on the lateral wall of rotating member, just reset spring's both ends are fixed respectively on the relay casing, with drive after the electricity-off of electromagnetic component the rotating member resets.

As a further improvement of the present invention, the second contact is a non-magnetic metal sheet.

The utility model has the advantages that: the utility model discloses a set up the elevating gear that the rotatory component of control goes up and down, set up a plurality of first contacts and set up the second contact on electromagnetic component on the lateral wall of rotatory component simultaneously, thereby electromagnetic component after the usable circular telegram controls the lift that rotatory component rotates and elevating gear, and according to being in the first contact of different level and being connected or the disconnection of second contact, realize the timesharing break-make of a relay, and then reduced the quantity of the relay in the equipment control circuit, the cost is reduced, the circuit structure has been optimized.

Drawings

Fig. 1 is a schematic structural diagram of the relay of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the present invention discloses a relay 100, which comprises a relay housing 1, and a rotary member 2 and an electromagnetic assembly 3 accommodated in the relay housing 1.

The relay case 1 is provided in a substantially rectangular parallelepiped shape, and has a bottom wall 10 and two side walls 11 extending upward from two long sides of the bottom wall 10, respectively. The rotary member 2 and the electromagnetic assembly 3 are both housed in the relay case 1 and fixed to the bottom wall 10. Of course, the arrangement form of the relay housing 1 may be determined according to actual situations, and is not limited herein.

The relay 100 further includes a lifting device 21 connected to the rotating member 2 and controlling the rotating member 2 to lift, specifically, the rotating member 2 extends in a vertical direction and has a cylindrical shape, one end of the lifting device 21 is fixedly connected to the relay housing 1, and the other end of the lifting device 21 is fixedly connected to the bottom of the rotating member 2, so that the rotating member 2 can be lifted and lowered by the lifting device 21. In this embodiment, the lifting device 21 is provided in a rod shape, and the rotating member 2 is sleeved on the lifting device 21, so that the rotating member 2 can be lifted or lowered along the lifting device 21, and at the same time, the rotating member 2 can also rotate on the lifting device 21.

The outer side wall of the rotating component 2 is provided with a plurality of first contacts 6, and the electromagnetic component 3 is provided with a second contact 5. Specifically, the first contacts 6 are arranged in an array on the outer side surface of the rotary member 2, and the second contacts 5 are connected to the electromagnetic assembly 3, so that the second contacts 5 can be connected to or disconnected from the first contacts 6 of the corresponding height by the electromagnetic induction of the electromagnetic assembly 3.

In this embodiment, the first contacts 6 include normally open contacts and normally closed contacts, and when the second contacts 5 are in contact with different first contacts 6, time-sharing on-off is realized by presetting the normally open or normally closed states of different first contacts 6. Preferably, the second contact 5 is a non-magnetic metal sheet to prevent the second contact 5 from being disturbed by the magnetic field generated by the electromagnetic assembly 3.

The electromagnetic assembly 3 comprises an electromagnet 31, an electromagnetic coil 32 wound on the electromagnet 31, and an armature 33, wherein the armature 33 is disposed above the electromagnet 31, the electromagnetic coil 32 is disposed parallel to the rotary member 2, two ends of the electromagnetic coil 32 are respectively provided with a pin 321, and the pins 321 protrude beyond the bottom wall 10 of the relay housing 1 to pass current from the outside to energize the electromagnetic coil 32. The electromagnetic coil 32 controls the rotation of the rotary member 2 by changing the polarity of the electromagnet 31 after the energization, and performs time-sharing on-off control according to the connection or disconnection of the second contact 5 and the first contacts 6 at different heights.

In this embodiment, the second contact 5 is connected to an armature 33 through an insulating thin rod 36, a magnet 34 is connected to the bottom of the armature 33, and the electromagnet 31 is disposed right below the magnet 34 so as to control the second contact 5 to move up and down after the electromagnetic assembly 3 is powered on. Preferably, the electromagnetic coil 32 is an alternating current electromagnetic coil.

The electromagnetic component 3 further comprises a fixing frame 30 for fixing the electromagnet 31, the armature 33 and the magnet 34, the bottom of the fixing frame 30 is fixedly connected with the bottom wall 10 of the relay shell 1, the electromagnet 31, the armature 33 and the magnet 34 are all fixed on the fixing frame 30 close to one side of the rotating member 2, a spring 35 is further arranged on one side of the fixing frame 30 far away from the rotating member 2, and the spring 35 is used for pulling the magnet 34 to be disconnected with the electromagnet 31 after the electromagnetic component 3 is powered off, so that the second contact 5 is disconnected with the first contact 6.

The utility model discloses in, electromagnetic component 3 with the neighbouring setting of rotating member 2 to control after 3 circular telegrams of electromagnetic component rotating member 2 rotates, and according to under elevating gear 21's the drive second contact 5 with correspond first contact 6 be connected or break off, control relay 100's timesharing break-make.

The relay 100 further includes a return spring 4, the return spring 4 surrounds the outer side wall of the rotating member 2 by one circle, and two ends of the return spring 4 are respectively fixed on the side wall 11 of the relay housing 1, so that the electromagnetic assembly 3 can drive the rotating member 2 to reset after being powered off. Specifically, the rotating member 2 is subjected to a driving force from the magnetic field generated by the electromagnetic assembly 3 and a resistance force from the return spring 4 when rotating, the driving force is greater than the resistance force when the current in the electromagnetic assembly 3 increases, the rotating member 2 starts to rotate, and the driving force is less than the resistance force when the current in the electromagnetic assembly 3 decreases, the return spring 4 brings the rotating member 2 to return to a position before rotation (i.e., an initial position), and the connection or disconnection of the second contact 5 with or from the first contact 6 can be periodically controlled in this cycle.

The working principle of the relay 100 of the present invention will be described in detail below:

the electromagnetic assembly 3 is energized to rotate the rotary member 2 by electromagnetic induction; the rotating member 2 rotates to connect the first contact 6 with the second contact 5, and at this time, the relay 100 is in the on state; and when the rotary member 2 continues to rotate and the first contact 6 is disconnected from the second contact 5, the relay 100 is in the open state.

When the relay 100 is in a connected state, the time-sharing on-off control of the relay 100 is realized by setting the first contact 6 as a normally open contact or a normally closed contact; by changing the current magnitude, the polarity of the electromagnet 31 and thus the magnitude of the rotation angle of the rotary member 2 can be changed such that the second contact 5 is connected with a different set of first contacts 6. Meanwhile, the lifting device 21 drives the rotating member 2 to ascend or descend, so that the second contact 5 can be connected with the first contacts 6 at different levels, and time-sharing on-off is finally realized.

To sum up, the utility model discloses a set up the elevating gear 21 that control rotating member 2 goes up and down, set up a plurality of first contacts 6 and set up second contact 5 on electromagnetic component 3 simultaneously on rotating member 2's lateral wall, thereby electromagnetic component 3 after the usable circular telegram controls rotating member 2 and rotates and elevating gear 21's lift, and according to being connected or the disconnection of first contact 6 and second contact 5 at different level, realize the timesharing break-make of a relay 100, and then reduced the quantity of the relay in the equipment control circuit, the cost is reduced, the circuit structure has been optimized.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. A relay comprising a relay housing, and a rotary member and an electromagnetic assembly housed in the relay housing, characterized in that: the relay further comprises a lifting device which is connected with the rotating member and controls the rotating member to lift, a plurality of first contacts are arranged on the outer side wall of the rotating member, a second contact is arranged on the electromagnetic assembly, the electromagnetic assembly is arranged adjacent to the rotating member so as to control the rotating member to rotate after the electromagnetic assembly is electrified, and the time-sharing on-off of the relay is controlled according to the connection or disconnection of the second contacts and the corresponding first contacts under the driving of the lifting device.

2. The relay according to claim 1, characterized in that: the rotating member extends along the vertical direction and is cylindrical, one end of the lifting device is fixedly connected with the relay shell, and the other end of the lifting device is fixedly connected with the bottom of the rotating member.

3. The relay according to claim 2, characterized in that: the first contacts are arranged up and down in the extending direction of the rotating member, and the lifting device is used for controlling the rotating member to ascend or descend so as to drive the first contacts at different heights on the outer side wall of the rotating member to be connected with the second contacts.

4. The relay according to claim 1, characterized in that: the electromagnetic assembly comprises an electromagnet, an electromagnetic coil and an armature, the armature is arranged above the electromagnet, the electromagnetic coil is arranged in parallel to the rotating component, and the electromagnetic coil controls the rotating component to rotate by changing the polarity of the electromagnet after being electrified.

5. The relay according to claim 4, wherein: the second contact is connected with the armature through an insulating thin rod.

6. The relay according to claim 4, wherein: the electromagnet is arranged right below the armature so as to control the second contact to move up and down after the electromagnetic assembly is electrified.

7. The relay according to claim 4, wherein: the electromagnetic coil is an alternating current electromagnetic coil.

8. The relay according to claim 4, wherein: pins are arranged at two ends of the electromagnetic coil respectively, and protrude out of the relay shell so as to be electrified from the outside.

9. The relay according to claim 1, characterized in that: the relay further comprises a return spring, the return spring surrounds a circle on the outer side wall of the rotating member, and two ends of the return spring are respectively fixed on the relay shell so as to drive the rotating member to reset after the electromagnetic assembly is powered off.

10. The relay according to claim 1, characterized in that: the second contact is a non-magnetic metal sheet.

Images