Relay control device

Abstract

The invention relates to the technical field of relays, in particular to a relay control device. A relay control device comprises a relay, a control mechanism used for controlling abutting between a first wiring terminal and a second wiring terminal after the relay is attracted is arranged in a shell, and the control mechanism comprises a control frame fixedly connected to the bottom wall of the shell. The side, close to the first wiring terminal, of the control frame is provided with a first sliding plate through a first telescopic assembly, and the other side of the first sliding plate is fixedly connected with a first fixing plate. The electromagnetic relay has the beneficial effects that through the arrangement of the control mechanism and under the driving action of the driving mechanism, the coil on the electromagnet does not need to be maintained on the action voltage in the process that the relay keeps the circuit closed, so that the problem of overheating caused by loss is reduced, and the service life of the electromagnetic relay is prolonged. Therefore, the normal service life of the relay is ensured while the characteristic parameters of the relay are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of relays, and in particular to a relay control device. Background Art

[0002] The working principle of the relay is based on the electromagnetic effect. In a relay, there is usually a coil and a set of iron cores. When the coil is energized, a magnetic field is generated, which attracts the armature and makes it move. The movement of the armature controls the on and off of the controlled system, thereby achieving control of large currents.

[0003] For example, the relay control device disclosed in Patent No. CN110582827B can suppress the surge current to the relay when outputting the switching current.

[0004] Specifically, when the coil is energized, a magnetic field is generated and attracts the armature, which moves and touches the moving contact. When the armature touches the moving contact, the moving contact contacts the stationary contact, thereby connecting the controlled system. If the coil is de-energized, the magnetic field disappears, the armature loses its attraction, the moving contact separates from the stationary contact, and the controlled system is disconnected.

[0005] After the relay is energized, if the coil voltage is maintained above the operating voltage, the coil voltage will have a certain loss, and the overheating problem caused by this loss is very common. The main cause of relay overheating is the loss of the relay coil, and the loss of the coil is one of the main heat sources of the relay. The overheating of the relay will not only affect the characteristic parameters of the relay itself, but also affect the service life of the relay. Summary of the invention

[0006] The present invention aims at the technical problems existing in the prior art and provides a relay control device to solve the problem of serious loss of the relay coil after the relay is energized.

[0007] The technical solution of the present invention to solve the above technical problems is as follows: a relay control device, comprising a relay, the relay comprising a housing and an armature arranged in the housing, an iron plate being arranged on one side of the armature, an electromagnet being arranged on the bottom wall of the housing, the electromagnet being arranged opposite to the iron plate, a first terminal being connected to the housing via two connecting rods, two second terminals being connected to the side wall of the housing via a mounting plate, the two second terminals being arranged opposite to the first terminal, a control mechanism being arranged in the housing for controlling the abutment between the first terminal and the second terminal after the relay is attracted; The control mechanism includes a control frame fixedly connected to the bottom wall of the shell, a first sliding plate is provided on a side of the control frame close to the first terminal through a first telescopic assembly, a first fixed plate is fixedly connected to the other side of the first sliding plate, a plurality of control plates are fixedly connected to the side of the first fixed plate away from the bottom wall of the control frame, each of the control plates is provided with a first inclined surface on a side close to the mounting plate, a first L-shaped plate is fixedly connected to one side of the mounting plate, and the other end of the first L-shaped plate slides on each first inclined surface.

[0008] The beneficial effects of the present invention are: This type of relay control device, through the setting of the control mechanism, under the driving action of the driving mechanism, makes it no longer necessary for the coil on the electromagnet to maintain the circuit path of the relay, thereby reducing the overheating problem caused by loss, thereby ensuring the normal service life of the relay while ensuring the characteristic parameters of the relay itself.

[0009] Based on the above technical solution, the present invention can also be improved as follows.

[0010] Further, the first telescopic assembly includes two first telescopic tubes fixedly connected to the bottom wall of the control frame and symmetrically arranged, the two first telescopic tubes are slidably connected with a first telescopic rod, one end of the two first telescopic rods is connected to a first sliding plate, and a first spring is sleeved on the side walls of the two first telescopic tubes, and the two ends of the two first springs are respectively connected to the bottom wall of the control frame and the first sliding plate.

[0011] The beneficial effect of adopting the above further solution is that, through the provision of the first telescopic assembly, a guiding and limiting function is provided for the movement of the first sliding plate.

[0012] Furthermore, a pushing mechanism for pushing the two second connecting terminals is provided in the shell, and the pushing mechanism includes a second fixed plate fixedly connected to the side wall of the shell, and a U-shaped plate is fixedly connected to one side of the two second fixed plates close to the second connecting terminals, and a rotating shaft is rotatably connected between the two U-shaped plates, one end of the rotating shaft passes through the U-shaped plate and is fixedly connected to a cam, and the peripheral side of the cam slides on the side wall of the mounting plate, and the armature is provided with a driving mechanism for driving the cam.

[0013] The beneficial effect of adopting the above further solution is that, by setting the pushing mechanism, the second wiring terminal on one side of the mounting plate is pushed against the first wiring terminal, thereby realizing the connection of the circuit.

[0014] Furthermore, the driving mechanism includes a driving plate fixedly connected to the armature, a driving hole is opened at one end of the driving plate close to the cam, a second sliding plate is connected to the driving hole through a second telescopic assembly, a plurality of driving blocks are fixedly connected to the other side of the second sliding plate, a driving wheel is fixedly connected to the side wall of the rotating shaft, and the driving wheel is meshed with each driving block.

[0015] The beneficial effect of adopting the above further solution is that, through the setting of the driving mechanism, the cam will be driven to rotate during the downward movement of the mounting plate.

[0016] Furthermore, each of the driving blocks is provided with a second inclined surface on a side away from the mounting plate, and each of the second inclined surfaces slides on the side wall of the driving wheel.

[0017] The beneficial effect of adopting the above further solution is that, by setting the second inclined surface, the cam will not be driven to rotate during the upward movement of the mounting plate, thereby maintaining the stability of the connection between the first terminal and the second terminal.

[0018] Further, the second telescopic assembly includes two second telescopic tubes fixedly connected to the bottom wall of the driving hole, and the two second telescopic tubes are slidably connected to the second telescopic rods, one end of the two second telescopic rods is connected to the second sliding plate, and the side walls of the two second telescopic tubes are sleeved with second springs, and the two ends of the two second springs are respectively connected to the bottom wall of the driving hole and the second sliding plate.

[0019] The beneficial effect of adopting the above further solution is that, through the provision of the second telescopic assembly, a guiding and resetting function is provided for the movement of the second sliding plate.

[0020] Furthermore, the driving wheel is provided with an unlocking mechanism for unlocking the abutment between the first terminal and the second terminal, the unlocking mechanism includes an unlocking plate fixedly connected to the side wall of the driving wheel, a third inclined surface is provided on two opposite side walls of the unlocking plate, a second L-shaped plate is slidably connected to the mounting plate, and one end of the second L-shaped plate slides on the side walls of the two third inclined surfaces.

[0021] The beneficial effect of adopting the above further solution is that, by setting the unlocking mechanism, it is easy to release the restriction of the control board on the first L-shaped board.

[0022] Furthermore, an avoidance hole is formed at one end of the control frame close to the mounting plate, and the other end of the second L-shaped plate slides on the avoidance hole and is connected to the first sliding plate.

[0023] The beneficial effect of adopting the above further solution is that, by providing the avoidance hole, the second L-shaped plate can easily drive the first sliding plate to move.

[0024] Furthermore, the shell is provided with a reset component for resetting the two second connecting terminals, and the reset component includes two reset plates fixedly connected to the side wall of the shell and symmetrically arranged, and the two reset plates are slidably connected with T-shaped rods, one end of the two T-shaped rods is connected to the mounting plate, and the side walls of the two T-shaped rods are sleeved with third springs, and the two ends of the two third springs are respectively connected to the side walls of the T-shaped rods and the reset plate.

[0025] The beneficial effect of adopting the above further solution is that, through the arrangement of the reset component, a guiding and reset function is provided for the movement of the two second connecting terminals.

[0026] Furthermore, the shell is provided with a rotating mechanism for rotating the armature in the opposite direction, the rotating mechanism includes a third L-shaped plate fixedly connected to the side wall of the shell, a rotating rod is rotatably connected to the third L-shaped plate, one end of the armature is connected to the side wall of the rotating rod, one end of the rotating rod passes through the third L-shaped plate and is fixedly connected to a gear, two third fixed plates are fixedly connected to the side wall of the third L-shaped plate, two guide rods are connected between the two third fixed plates, the two guide rods are connected to a rack through a guide block, the rack and the gear are meshed with each other, a fourth spring is sleeved on the side walls of the two guide rods, and the two ends of the two fourth springs are respectively connected to the guide block and the third fixed plate.

[0027] The beneficial effect of adopting the above further solution is that, through the setting of the rotating mechanism, when the electromagnet is powered off, the armature will be driven to reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of a relay control device of the present invention; Figure 2 A schematic diagram of the control mechanism structure of a relay control device of the present invention; Figure 3 A schematic diagram of the driving mechanism structure of a relay control device of the present invention; Figure 4 for Figure 2 The enlarged view of point A in the middle; Figure 5 for Figure 2 The enlarged view of point B in the middle; Figure 6 for Figure 3 Enlarged view of point C in the middle; Figure 7 for Figure 5 Enlarged view of point D in the middle.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 101, housing; 102, armature; 103, iron plate; 104, electromagnet; 105, connecting rod; 106, first connecting terminal; 107, mounting plate; 108, second connecting terminal; 201, control frame; 202, first slide; 203, control board; 204, first inclined plane; 205, first L-shaped plate; 301, first telescopic tube; 302, first telescopic rod; 303, first spring; 401, second fixed plate; 402, U-shaped plate; 403, rotating shaft; 404, cam; 501, driving plate; 502, driving Movable hole; 503, second sliding plate; 504, driving block; 505, second inclined plane; 506, driving wheel; 601, second telescopic tube; 602, second telescopic rod; 603, second spring; 701, unlocking plate; 702, third inclined plane; 703, second L-shaped plate; 801, reset plate; 802, T-shaped rod; 803, third spring; 901, third L-shaped plate; 902, rotating rod; 903, gear; 904, third fixed plate; 905, rack; 906, guide rod; 907, guide block; 908, fourth spring. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] The working principle of the relay is based on the electromagnetic effect. In a relay, there is usually a coil and a set of iron cores. When the coil is energized, a magnetic field is generated, which attracts the armature and makes it move. The movement of the armature controls the on and off of the controlled system, thereby achieving control of large currents.

[0032] Specifically, when the coil is energized, a magnetic field is generated and attracts the armature, which moves and touches the moving contact. When the armature touches the moving contact, the moving contact contacts the stationary contact, thereby connecting the controlled system. If the coil is de-energized, the magnetic field disappears, the armature loses its attraction, the moving contact separates from the stationary contact, and the controlled system is disconnected.

[0033] After the relay is energized, if the coil voltage is maintained above the operating voltage, the coil voltage will have a certain loss, and the overheating problem caused by this loss is very common. The main cause of relay overheating is the loss of the relay coil, and the loss of the coil is one of the main heat sources of the relay. The overheating of the relay will not only affect the characteristic parameters of the relay itself, but also affect the service life of the relay. In this regard, the inventor has proposed a relay control device to solve the above problem.

[0034] The present invention provides the following preferred embodiments like Figure 1-Figure 7As shown, a relay control device includes a relay, the relay is composed of a housing 101 and an armature 102 arranged in the housing 101, an iron plate 103 is arranged on one side of the armature 102, an electromagnet 104 is arranged on the bottom wall of the housing 101, the electromagnet 104 is arranged opposite to the iron plate 103, a first terminal 106 is connected to the housing 101 through two connecting rods 105, two second terminals 108 are connected to the side wall of the housing 101 through a mounting plate 107, the two second terminals 108 are arranged opposite to the first terminal 106, and a control mechanism for controlling the abutment between the first terminal 106 and the second terminal 108 after the relay is attracted is arranged in the housing 101; The control mechanism includes a control frame 201 fixedly connected to the bottom wall of the shell 101, a first sliding plate 202 is provided on one side of the control frame 201 close to the first terminal 106 through a first telescopic assembly, a first fixed plate is fixedly connected to the other side of the first sliding plate 202, a plurality of control boards 203 are fixedly connected to the side of the first fixed plate away from the bottom wall of the control frame 201, a first inclined surface 204 is provided on one side of each control board 203 close to the mounting plate 107, a first L-shaped plate 205 is fixedly connected to one side of the mounting plate 107, and the other end of the first L-shaped plate 205 slides on each first inclined surface 204.

[0035] In this embodiment, Figure 7 As shown, in order to provide guidance and limit for the movement of the first sliding plate 202, the first telescopic assembly includes two first telescopic tubes 301 fixedly connected to the bottom wall of the control frame 201 and symmetrically arranged, the two first telescopic tubes 301 are slidably connected with the first telescopic rods 302, one end of the two first telescopic rods 302 is connected to the first sliding plate 202, the side walls of the two first telescopic tubes 301 are sleeved with first springs 303, and the two ends of the two first springs 303 are respectively connected to the bottom wall of the control frame 201 and the first sliding plate 202.

[0036] In this embodiment, Figure 5 As shown, in order to push the second terminal 108 on one side of the mounting plate 107 to abut against the first terminal 106, thereby realizing the interconnection of the circuit, a pushing mechanism for pushing the two second terminals 108 is provided in the housing 101, and the pushing mechanism includes a second fixed plate 401 fixedly connected to the side wall of the housing 101, and a U-shaped plate 402 is fixedly connected to one side of the two second fixed plates 401 close to the second terminal 108, and a rotating shaft 403 is rotatably connected between the two U-shaped plates 402, one end of the rotating shaft 403 is arranged through the U-shaped plate 402, and is fixedly connected to a cam 404, and the peripheral side of the cam 404 slides on the side wall of the mounting plate 107, and the armature 102 is provided with a driving mechanism for driving the cam 404.

[0037] In this embodiment, Figure 5 and Figure 6 In order to drive the cam 404 to rotate when the mounting plate 107 moves downward and not to drive the cam 404 to rotate when the mounting plate 107 moves upward, the driving mechanism includes a driving plate 501 fixedly connected to the armature 102, and a driving hole 502 is provided at one end of the driving plate 501 close to the cam 404, and a second sliding plate 503 is connected to the driving hole 502 through a second telescopic assembly, and a plurality of driving blocks 504 are fixedly connected to the other side of the second sliding plate 503, and a driving wheel 506 is fixedly connected to the side wall of the rotating shaft 403, and the driving wheel 506 is meshed with each driving block 504, and a second inclined surface 505 is provided on the side of each driving block 504 away from the mounting plate 107, and each second inclined surface 505 slides on the side wall of the driving wheel 506.

[0038] In this embodiment, Figure 6 In order to provide guidance and reset for the movement of the second sliding plate 503, the second telescopic assembly includes two second telescopic tubes 601 fixedly connected to the bottom wall of the driving hole 502 and symmetrically arranged, the two second telescopic tubes 601 are slidably connected with second telescopic rods 602, one end of the two second telescopic rods 602 is connected to the second sliding plate 503, and the side walls of the two second telescopic tubes 601 are sleeved with second springs 603, and the two ends of the two second springs 603 are respectively connected to the bottom wall of the driving hole 502 and the second sliding plate 503.

[0039] In this embodiment, Figure 6 and Figure 7 As shown, in order to facilitate the release of the control board 203 from the limiting position of the first L-shaped plate 205, the driving wheel 506 is provided with an unlocking mechanism for unlocking the abutment between the first terminal 106 and the second terminal 108, and the unlocking mechanism includes an unlocking plate 701 fixedly connected to the side wall of the driving wheel 506, and third inclined surfaces 702 are provided on two opposite side walls of the unlocking plate 701. The second L-shaped plate 703 is slidably connected to the mounting plate 107, and one end of the second L-shaped plate 703 slides on the side walls of the two third inclined surfaces 702. An avoidance hole is provided at one end of the control frame 201 close to the mounting plate 107, and the other end of the second L-shaped plate 703 slides on the avoidance hole and is connected to the first sliding plate 202.

[0040] In this embodiment, Figure 7In order to provide a guide and reset function for the movement of the two second connecting terminals 108, a reset component for resetting the two second connecting terminals 108 is provided on the housing 101, and the reset component includes two reset plates 801 fixedly connected to the side wall of the housing 101 and symmetrically arranged with each other, and T-shaped rods 802 are slidably connected to the two reset plates 801, and one end of the two T-shaped rods 802 is connected to the mounting plate 107, and the side walls of the two T-shaped rods 802 are sleeved with third springs 803, and the two ends of the two third springs 803 are respectively connected to the side walls of the T-shaped rods 802 and the reset plate 801.

[0041] In this embodiment, Figure 4 It is shown that in order to drive the armature 102 to reset when the electromagnet 104 is powered off, a rotating mechanism for reversely rotating the armature 102 is provided on the housing 101, and the rotating mechanism includes a third L-shaped plate 901 fixedly connected to the side wall of the housing 101, and a rotating rod 902 is rotatably connected to the third L-shaped plate 901, one end of the armature 102 is connected to the side wall of the rotating rod 902, one end of the rotating rod 902 penetrates the third L-shaped plate 901 and is fixedly connected to a gear 903, two third fixed plates 904 are fixedly connected to the side wall of the third L-shaped plate 901, two guide rods 906 are connected between the two third fixed plates 904, the two guide rods 906 are connected to a rack 905 through a guide block 907, the rack 905 and the gear 903 are meshed with each other, and fourth springs 908 are sleeved on the side walls of the two guide rods 906, and the two ends of the two fourth springs 908 are respectively connected to the guide block 907 and the third fixed plate 904.

[0042] The specific working process of the present invention is as follows: (1) During the use of the relay, when the relay is energized, the electromagnet 104 is energized to generate magnetism. Under the effect of magnetism, the iron plate 103 on the armature 102 is driven to move downward. When the electromagnet 104 and the iron plate 103 are engaged, the driving plate 501 is driven to move synchronously. During the movement of the driving plate 501, the driving block 504 on the second sliding plate 503 is driven to move. During the movement of the driving block 504, the cam 404 is driven to rotate through the mutual meshing transmission with the driving wheel 506. During the rotation of the cam 404, when the cam 404 abuts against the mounting plate 107, the second terminal 108 on one side of the mounting plate 107 is pushed against the first terminal 106 under the driving force and the guiding action of the reset component, thereby realizing the connection of the circuit; (2) When the mounting plate 107 moves downward, the first L-shaped plate 205 will be driven to move downward synchronously. When the first L-shaped plate 205 abuts against the control plate 203, the control plate 203 will be pushed to retract into the control frame 201 under the interaction force of the first inclined surface 204 and the guiding action of the first telescopic component. When the second wiring terminal 108 abuts against the first wiring terminal 106, the mounting plate 107 will not move downward. At this time, under the elastic action of the first telescopic component, the control plate 203 will be pushed out of the control frame 201, so that the first L-shaped plate 205 abuts against the side wall of the control plate 203, thereby achieving the second wiring terminal 108 and the first wiring terminal 106. The limit of the L-shaped plate 205 further keeps the first terminal 106 and the second terminal 108 against each other. After the first terminal 106 and the second terminal 108 are kept against each other, the electromagnet 104 is powered off, so that the electromagnet 104 and the iron plate 103 are separated, and the armature 102 will be reset under the action of the rotating mechanism, so that in the process of the relay maintaining the circuit, the coil on the electromagnet 104 no longer needs to be maintained at the action voltage, thereby reducing the overheating problem caused by loss, thereby ensuring the characteristic parameters of the relay itself and ensuring the normal service life of the relay; (3) At the same time, during the resetting process of the armature 102, the plurality of driving blocks 504 on the driving plate 501 will be driven to move. During the upward movement of each driving block 504, when the driving block 504 abuts against the driving wheel 506, the interaction force between the driving wheel 506 and the second inclined surface 505 and the guiding action of the first telescopic assembly will push each driving block 504 to retract into the driving hole 502. Therefore, during the resetting process of the armature 102, the driving block 504 will not drive the driving wheel 506 to rotate, and further will not drive the cam 404 to rotate, thereby maintaining the stability of the connection between the first terminal 106 and the second terminal 108. When the relay needs to be disconnected, the electromagnet 104 is energized to make the driving wheel 506 rotate again. During the rotation of the driving wheel 506, the unlocking plate 701 will be against the second L-shaped plate 703, so that under the interaction force of the third inclined surface 702, the second L-shaped plate 703 will be pushed away from the cam 404, thereby further driving the control plate 203 on the first sliding plate 202 to retract into the control frame 201. At this time, the control plate 203 is released from the limit of the first L-shaped plate 205, so that under the resetting action of the resetting component, the second terminal 108 on the mounting plate 107 will be driven away from the first terminal 106, so that the first terminal 106 is separated from the second terminal 108, thereby realizing the disconnection operation of the relay.

Claims

1. A relay control device, It is characterized in that The relay comprises a housing (101) and an armature (102) arranged in the housing (101); an iron plate (103) is arranged on one side of the armature (102); an electromagnet (104) is arranged on the bottom wall of the housing (101); the electromagnet (104) and the iron plate (103) are arranged opposite to each other; a first terminal (106) is connected to the housing (101) via two connecting rods (105); two second terminals (108) are connected to the side wall of the housing (101) via a mounting plate (107); the two second terminals (108) are arranged opposite to the first terminal (106); and a control mechanism for controlling the abutment between the first terminal (106) and the second terminal (108) after the relay is energized is arranged in the housing (101).

2. A relay control device according to claim 1, It is characterized in that The control mechanism comprises a control frame (201) fixedly connected to the bottom wall of the housing (101); a first sliding plate (202) is provided on one side of the control frame (201) close to the first wiring terminal (106) via a first telescopic assembly; and a first fixed plate is fixedly connected to the other side of the first sliding plate (202).

3. A relay control device according to claim 2, It is characterized in that A plurality of control boards (203) are fixedly connected to a side of the first fixed plate away from the bottom wall of the control frame (201); a first inclined surface (204) is provided on a side of each of the control boards (203) close to the mounting plate (107); a first L-shaped plate (205) is fixedly connected to one side of the mounting plate (107); the other end of the first L-shaped plate (205) slides on each of the first inclined surfaces (204); the first telescopic assembly comprises two first telescopic tubes (301) symmetrically arranged and fixedly connected to the bottom wall of the control frame (201); first telescopic rods (302) are slidably connected to the two first telescopic tubes (301); one end of the two first telescopic rods (302) is connected to the first sliding plate (202); first springs (303) are sleeved on the side walls of the two first telescopic tubes (301); and two ends of the two first springs (303) are respectively connected to the bottom wall of the control frame (201) and the first sliding plate (202); A pushing mechanism for pushing the two second connecting terminals (108) is provided in the housing (101), the pushing mechanism comprising a second fixing plate (401) fixedly connected to the side wall of the housing (101), a U-shaped plate (402) fixedly connected to one side of the two second fixing plates (401) close to the second connecting terminals (108), a rotating shaft (403) rotatably connected between the two U-shaped plates (402), one end of the rotating shaft (403) passing through the U-shaped plate (402) and fixedly connected to a cam (404), the peripheral side of the cam (404) sliding on the side wall of the mounting plate (107), and a driving mechanism for driving the cam (404) is provided on the armature (102); The driving mechanism comprises a driving plate (501) fixedly connected to the armature (102); a driving hole (502) is formed at one end of the driving plate (501) close to the cam (404); a second sliding plate (503) is connected to the driving hole (502) via a second telescopic assembly; a plurality of driving blocks (504) are fixedly connected to the other side of the second sliding plate (503); a driving wheel (506) is fixedly connected to the side wall of the rotating shaft (403); and the driving wheel (506) is meshed with each driving block (504); The second telescopic assembly comprises two second telescopic tubes (601) fixedly connected to the bottom wall of the driving hole (502) and symmetrically arranged with each other, the two second telescopic tubes (601) are slidably connected with second telescopic rods (602), one end of the two second telescopic rods (602) is connected to the second sliding plate (503), the side walls of the two second telescopic tubes (601) are sleeved with second springs (603), and the two ends of the two second springs (603) are respectively connected to the bottom wall of the driving hole (502) and the second sliding plate (503); The housing (101) is provided with a reset component for resetting the two second connecting terminals (108), the reset component comprising two reset plates (801) fixedly connected to the side wall of the housing (101) and symmetrically arranged with each other, the two reset plates (801) being slidably connected with T-shaped rods (802), one end of the two T-shaped rods (802) being connected to the mounting plate (107), the side walls of the two T-shaped rods (802) being sleeved with third springs (803), the two ends of the two third springs (803) being respectively connected to the side walls of the T-shaped rods (802) and the reset plate (801); The housing (101) is provided with a rotation mechanism for rotating the armature (102) in the opposite direction, the rotation mechanism comprising a third L-shaped plate (901) fixedly connected to the side wall of the housing (101), a rotation rod (902) being rotatably connected to the third L-shaped plate (901), one end of the armature (102) being connected to the side wall of the rotation rod (902), one end of the rotation rod (902) passing through the third L-shaped plate (901) and being fixedly connected to a gear (903).

4. A relay control device according to claim 3, It is characterized in that Two third fixed plates (904) are fixedly connected to the side wall of the third L-shaped plate (901), two guide rods (906) are connected between the two third fixed plates (904), the two guide rods (906) are connected to racks (905) via guide blocks (907), and the racks (905) and the gears (903) are arranged to mesh with each other.

5. A relay control device according to claim 3, It is characterized in that A second inclined surface (505) is provided on a side of each of the driving blocks (504) away from the mounting plate (107), and each of the second inclined surfaces (505) slides on a side wall of the driving wheel (506).

6. A relay control device according to claim 5, It is characterized in that The driving wheel (506) is provided with an unlocking mechanism for unlocking the abutment between the first connecting terminal (106) and the second connecting terminal (108).

7. A relay control device according to claim 6, It is characterized in that The unlocking mechanism comprises an unlocking plate (701) fixedly connected to a side wall of the driving wheel (506); two opposite side walls of the unlocking plate (701) are provided with third inclined surfaces (702); a second L-shaped plate (703) is slidably connected to the mounting plate (107); one end of the second L-shaped plate (703) slides on the side walls of the two third inclined surfaces (702).

8. A relay control device according to claim 7, It is characterized in that An avoidance hole is provided at one end of the control frame (201) close to the mounting plate (107), and the other end of the second L-shaped plate (703) slides on the avoidance hole and is connected to the first sliding plate (202).

9. A relay control device according to claim 4, It is characterized in that A fourth spring (908) is sleeved on the side walls of the two guide rods (906), and two ends of the two fourth springs (908) are respectively connected to the guide block (907) and the third fixing plate (904).

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