Relay with on-off state detection function

Abstract

The utility model relates to a relay with an opening and closing state detection function. The relay comprises a shell, a base, a connecting assembly and an electromagnetic assembly, the shell is provided with an insertion box and an electromagnetic switch. And an indicating lamp is arranged on the electromagnetic switch. The outer surface of the housing is also provided with a clamping box and a wire duct. The electromagnetic assembly comprises a coil assembly, an armature assembly and a swing connecting rod. The coil assembly comprises a coil body, a first yoke and a second yoke. The armature assembly comprises magnetic steel, a rotating shaft, a first armature, a second armature, a connecting block and a pushing protruding block. The swing connecting rod comprises a rotating axis, a connecting hole and a swing end. Compared with the prior art, the swing connecting rod is arranged to hit the electromagnetic switch to enable the electromagnetic switch to be switched on and switched off, the structure is simple, and it is guaranteed that the closed state in the relay can be fed back in real time. And the electromagnetic switch and the indicating lamp are arranged, so that a user can more intuitively know the opening and closing states of the contacts in the relay.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic control devices, in particular to a relay with an opening and closing state detection function. Background Art

[0002] A relay is an electrical control device. When the change of the input quantity (excitation quantity) reaches the specified requirement, it is an electrical appliance that makes the controlled quantity change in a predetermined step in the electrical output circuit. It has a control system (also known as the input circuit) and a controlled system (also known as the output circuit), and is usually applied to an automatic control circuit. It is actually an "automatic switch" that uses a small current to control the operation of a large current. It plays roles such as automatic regulation, safety protection, and circuit conversion in the circuit.

[0003] The existing relay includes a housing, an electromagnetic coil assembly, a permanent magnet armature located on one side of the electromagnetic coil assembly, a slider with one end abutted against the permanent magnet armature, a moving contact unit abutted against the other end of the slider, and a stationary contact unit oppositely arranged with respect to the moving contact unit. After the electromagnetic coil assembly is energized, it drives the permanent magnet armature to rotate, and the permanent magnet armature drives the slider to move, so that the moving contact unit is connected or separated from the stationary contact unit, thereby controlling the on-off of the main circuit connected to the moving contact unit and the stationary contact unit. In some devices or places that need to remotely monitor or control the relay, it is necessary to detect the on-off state of the relay. The existing detection method generally realizes it by detecting the electrical signal of the main circuit. Doing so has some drawbacks. For example, the electrical signal of the main circuit is often controlled by multiple relays or switches together. When the electrical signal of the main circuit disappears, it can only be known that there is a node break in the main circuit, but it cannot be known which specific relay is disconnected; in addition, there are also some situations where the relay fails. For example, although the slider of the relay is in the off state, due to faults such as thermal fusion short circuit between the moving contact unit and the stationary contact unit, the moving contact unit of the relay is still connected to the stationary contact unit, or although the slider of the relay is in the connected state, the moving contact unit is not connected to the stationary contact unit due to reasons such as elastic failure.

[0004] It is impossible to indicate or visually show whether the current moving contact and stationary contact are in a closed or open state. Summary of the Utility Model

[0005] In view of this, the utility model provides a relay with an opening and closing state detection function to solve the above technical problems.

[0006] A relay with an opening and closing state detection function, which includes a housing, a base inserted in the housing, a connection component arranged in the base, and an electromagnetic component arranged in the base. An insertion box is provided on the housing, and an electromagnetic switch inserted in the insertion box. An indicator light is provided on the electromagnetic switch. A clamping box for placing an electromagnetic plug and a wire groove for fixing wires are also provided on the outer surface of the housing. One side of the insertion box is open, and its interior communicates with the inner cavity of the housing. The connection component includes a moving component arranged in the housing. The electromagnetic component includes a coil component arranged in the housing, an armature component arranged on one side of the coil component, and a swinging connecting rod connected to the armature component. The coil component includes a coil body, a first yoke connected to one end of the coil body, and a second yoke connected to the other end of the coil body. The first yoke and the second yoke are respectively connected to both ends of the coil body and are bent relatively. The armature component includes a magnet arranged between the first yoke and the second yoke, a rotating shaft inserted in the magnet, two first armatures arranged on the magnet, two second armatures arranged on the magnet, a connecting block arranged on the magnet, and a pushing convex block arranged on the magnet. The connecting block is a convex block arranged on the magnet, extending in a direction away from the rotating shaft, located on the side of the magnet away from the coil component, and a columnar connecting rod is provided at the free end. The pushing convex block and the connecting block are on the same side, with the extending direction opposite to that of the connecting block, and is connected to the moving component. The swinging connecting rod includes a rotation axis, a connection hole located on one side of the rotation axis, and a swinging end located on the other side of the rotation axis away from the connection hole. An insertion hole is provided at the rotation axis. The connection hole is an oblong hole. The swinging end is provided with a columnar or spherical striking part.

[0007] Further, the housing includes a first housing and a second housing that are buckled with each other, and the two are buckled with each other to form a rectangular boxed structure, and a plurality of sockets are provided on one side.

[0008] Further, the base is fixed to the housing by means of a buckle or a fastener, and is located on the side where the sockets are located.

[0009] Further, the connection component includes a static component arranged on one side of the moving component, and a plurality of overflow grooves arranged through the sockets. A pair of contacts are respectively arranged oppositely on the moving component and the static component.

[0010] Further, the permanent magnet is located between the first yoke and the second yoke, and is spaced from both the first yoke and the second yoke.

[0011] Further, the rotating shaft passes through the center point of the permanent magnet.

[0012] Further, the first armature and the second armature are respectively arranged in pairs on both sides of the permanent magnet, and both extend towards the first yoke and the second yoke, and the first yoke and the second yoke are respectively located between the first armature and the second armature.

[0013] Further, the length of the swing end is greater than the length of the connection hole.

[0014] Compared with the prior art, the relay with an opening and closing state detection function provided by the present utility model is provided with the swing connecting rod, which is connected to the armature assembly. Through the rotation of the permanent magnet, the swing connecting rod is driven to rotate, hitting the electromagnetic switch to make it closed and disconnected. The structure is simple, and the rotation angle is amplified by using the lever principle, so that it is not necessary to additionally increase the internal space of the relay. At the same time, it is connected to the rotating permanent magnet to ensure that the internal closed state of the relay can be feedback in real time. And by setting the electromagnetic switch and the indicator light, the disconnection and closing of the electromagnetic switch are feedback through the indicator light, and the user can more intuitively understand the opening and closing state of the internal contacts of the relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a schematic structural diagram of a relay with an opening and closing state detection function provided by the present utility model.

[0016] Figure 2 is Figure 1 The internal structural diagram of the relay with an opening and closing state detection function of

[0017] Figure 3 is Figure 1 The internal structural diagram of the relay with an opening and closing state detection function of

[0018] Figure 4 is Figure 3 The enlarged view of the relay with an opening and closing state detection function of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further details the specific embodiments of the present utility model. It should be understood that the description of the embodiments of the present utility model herein does not limit the protection scope of the present utility model.

[0020] As Figures 1 to 4As shown in the figure, it is a schematic structural diagram of a relay with an opening and closing state detection function provided by the present utility model. The relay with an opening and closing state detection function includes a housing 10, a base 20 inserted into the housing 10, a connection component 30 disposed in the base 20, and an electromagnetic component 40 disposed in the base 20. It can be imagined that the relay with an opening and closing state detection function also includes some other functional modules such as rivets, terminal blocks, etc., which are well-known technologies in the art and will not be elaborated here one by one.

[0021] The housing 10 includes a first housing 11 and a second housing 12 that are buckled with each other. The two are buckled with each other to form a rectangular boxed structure, and a plurality of sockets 13 are provided on one side for fixing the base 20 and inserting the corresponding structures of the connection component 30 and the electromagnetic component 40.

[0022] On the other side of the housing 10 away from the socket 13, there is an insertion box 14 and an electromagnetic switch 15 inserted into the insertion box 14. One side of the insertion box 14 is open, and its interior is communicated with the inner cavity of the housing 10, so that the electromagnetic switch 15 faces the inside of the housing 10, which is convenient for switch control through the electromagnetic component 40. This will be described in detail below in combination with the specific structure of the electromagnetic component 40. An indicator light 19 is provided on the electromagnetic switch 15, and the indicator light 19 is used to display the closing and opening of the electromagnetic switch 15.

[0023] On the outer surface of the housing 10, there is also a clamping box 17 for placing an electromagnetic plug 16 and a wire groove 18 for fixing wires. The above structures are all prior arts and should be conceivable by those skilled in the art. Therefore, only a brief description is given here.

[0024] The base 20 is fixed on the housing 10 by means of buckles or fasteners, etc., and is located on the side where the jack 13 is located, and an opening corresponding to the jack 13 is reserved for inserting the corresponding structures of the connection component 30 and the electromagnetic component 40.

[0025] The connection component 30 includes a moving component 31 disposed in the housing 10, a static component 32 disposed on one side of the moving component 31, and a plurality of overflow grooves 33 passing through the socket 13. A pair of contact points 34 are respectively and oppositely arranged on the moving component 31 and the static component 32. The above structures are all prior arts. For example, relevant content has been described in the utility model with the application number CN202223049119.7 authorized by the applicant, and it is not the main content of this application. Therefore, no detailed description will be given here one by one.

[0026] The electromagnetic component 40 includes a coil assembly 41 disposed within the housing 10, an armature assembly 42 disposed on one side of the coil assembly 41, and a swing connecting rod 43 connected to the armature assembly 42.

[0027] The coil assembly 41 includes a coil body 411, a first yoke 412 connected to one end of the coil body 411, and a second yoke 413 connected to the other end of the coil body 411.

[0028] The coil body 411 is an electromagnetic coil that generates magnetism when energized, thereby attracting the armature assembly 42. The first yoke 412 and the second yoke 413 are respectively connected to both ends of the coil body 411 and are bent relatively to have different magnetic poles when the coil body 411 is energized.

[0029] The armature assembly 42 includes a magnet 421 disposed between the first yoke 412 and the second yoke 413, a rotating shaft 422 inserted into the magnet 421, two first armatures 423 disposed on the magnet 421, two second armatures 424 disposed on the magnet 421, a connecting block 425 disposed on the magnet 421, and a pushing lug 426 disposed on the magnet 421.

[0030] The magnet 421 is located between the first yoke 412 and the second yoke 413 and is spaced from both the first yoke 412 and the second yoke 413. The rotating shaft 422 passes through the center point of the magnet 421 to fix the position of the magnet 421 and enable the magnet 421 to rotate around the rotating shaft 422. The first armatures 423 and the second armatures 424 are respectively arranged in pairs on both sides of the magnet 421 and both extend towards the first yoke 412 and the second yoke 413, and the first yoke 412 and the second yoke 413 are respectively located between the first armatures 423 and the second armatures 424, so that when the magnet 421 rotates, the first yoke 412 and the second yoke 413 respectively come into contact with the first armatures 423 and the second armatures 424.

[0031] The connecting block 425 is a lug disposed on the magnet 421, extending in a direction away from the rotating shaft 422, located on the side of the magnet 421 away from the coil assembly 41, and a columnar connecting rod is provided at the free end for easy insertion into the swing connecting rod 43, and the rotation of the magnet 421 drives the connecting block 425 to swing up and down.

[0032] The driving bump 426 and the connecting block 425 are located on the same side, with the extending direction opposite to that of the connecting block 425, and is connected to the moving component 31. When the magnet 421 rotates and contacts the moving component 31, the moving component 31 is pushed towards the static component 32, so that the two contacts 34 come into contact with each other to achieve the connection of the main circuit.

[0033] The swing connecting rod 43 includes a rotation axis 431, a connection hole 432 located on one side of the rotation axis 431, and a swing end 433 located on the other side of the rotation axis 431 away from the connection hole 432.

[0034] An insertion hole is provided at the rotation axis 431. By inserting a rotating shaft, while fixing the position of the swing connecting rod 43, the swing connecting rod 43 can rotate around the rotation axis 431. The connection hole 432 is an oblong hole. By inserting the rod-shaped structure of the connecting block 425 into the connection hole 432, the swing connecting rod 43 is driven to rotate when the magnet 421 rotates. The swing end 433 is provided with a columnar or spherical striking portion for striking the electromagnetic switch 15. Preferably, the length of the swing end 433 can be greater than the length of the connection hole 432, so as to obtain a larger rotation angle with a smaller stroke through the lever principle.

[0035] During use, when the direction of the current flowing through the coil body 411 changes, the first yoke 412 and the second yoke 413 generate different magnetic properties. When the first yoke 412 attracts the first armature 423, the second yoke 413 attracts the second armature 424, so that the magnet 421 rotates. At the same time, the driving bump 426 raises and pushes the moving component 31 closer to the static component 32, so that the two contacts 34 come into contact with each other to achieve the connection of the main circuit. At this time, the connecting block 425 drops, and under the rotation action of the swing connecting rod 43, the swing end 433 is raised, thereby achieving the disconnection of the electromagnetic switch 15. The disconnection and closing of the electromagnetic switch 15 are both displayed by the lighting, dimming or different colors of the indicator light 19, thereby realizing the display of whether the contacts inside the relay are closed or separated through the indicator light 19.

[0036] Compared with the prior art, the relay with an opening and closing state detection function provided by the present utility model is provided with the swing connecting rod 43, which is connected to the armature assembly 42. Through the rotation of the permanent magnet 421, the swing connecting rod 43 is driven to rotate, hitting the electromagnetic switch 15 to make it close and disconnect. The structure is simple, and the rotation angle is amplified by using the lever principle, so that there is no need to additionally increase the internal space of the relay. At the same time, it is connected to the rotating permanent magnet 421 to ensure that the internal closed state of the relay can be fed back in real time. By setting the electromagnetic switch 15 and the indicator light 19, the disconnection and closing of the electromagnetic switch 15 are fed back through the indicator light 10, and the user can more intuitively understand the opening and closing state of the internal contacts of the relay.

[0037] The above are only the preferred embodiments of the present utility model and are not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements or improvements within the spirit of the present utility model are covered by the claims of the present utility model.

Claims

1. A relay with an opening and closing state detection function, characterized in that: The relay with the opening and closing state detection function includes a housing, a base inserted into the housing, a connection component arranged in the base, and an electromagnetic component arranged in the base. There is an insertion box on the housing and an electromagnetic switch inserted into the insertion box. There is an indicator light on the electromagnetic switch. There is also a clamping box for placing an electromagnetic plug and a wire groove for fixing wires on the outer surface of the housing. One side of the insertion box is open, and its interior communicates with the inner cavity of the housing. The connection component includes a moving component arranged in the housing. The electromagnetic component includes a coil component arranged in the housing, an armature component arranged on one side of the coil component, and a swinging connecting rod connected to the armature component. The coil component includes a coil body, a first yoke connected to one end of the coil body, and a second yoke connected to the other end of the coil body. The first yoke and the second yoke are respectively connected to both ends of the coil body and are bent relatively. The armature component includes a magnet arranged between the first yoke and the second yoke, a rotating shaft inserted into the magnet, two first armatures arranged on the magnet, two second armatures arranged on the magnet, a connecting block arranged on the magnet, and a pushing convex block arranged on the magnet. The connecting block is a convex block arranged on the magnet, extending in the direction away from the rotating shaft, located on the side of the magnet away from the coil component, and a columnar connecting rod is arranged at the free end. The pushing convex block and the connecting block are on the same side, and the extending direction is opposite to the extending direction of the connecting block and is connected to the moving component. The swinging connecting rod includes a rotation axis, a connection hole on one side of the rotation axis, and a swinging end on the other side of the rotation axis away from the connection hole. There is an insertion hole at the rotation axis. The connection hole is an oblong hole. The swinging end is provided with a columnar or spherical striking part.

2. The relay with an opening / closing state detection function according to claim 1, wherein: The housing includes two mutually buckled first housing and second housing, which are mutually buckled to form a rectangular boxed structure, and a plurality of sockets are arranged on one side.

3. The relay with an opening / closing state detection function according to claim 2, wherein: The base is fixed on the housing by means of snap or fastener, and is located on the side where the sockets are located.

4. The relay with an opening / closing state detection function according to claim 2, characterized in that: The connection component includes a static component arranged on one side of the moving component and a plurality of overflow grooves arranged through the sockets. A pair of contacts are respectively arranged oppositely on the moving component and the static component.

5. The relay with an opening and closing state detection function as described in claim 1, characterized in that: The magnet is located between the first yoke and the second yoke and is spaced from both the first yoke and the second yoke.

6. The relay with an opening / closing state detection function according to claim 1, characterized in that: The rotating shaft passes through the center point of the magnet.

7. The relay with an opening / closing state detection function as described in claim 1, wherein: The first armature and the second armature are respectively arranged in pairs on both sides of the magnet and both extend towards the first yoke and the second yoke, and the first yoke and the second yoke are respectively located between the first armature and the second armature.

8. The relay with an opening / closing state detection function according to claim 1, wherein: The length of the swinging end is greater than the length of the connection hole.

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