Auxiliary switch and nanocrystalline relay

Abstract

The invention discloses an auxiliary switch and a nanocrystalline relay, and relates to the technical field of relays. The device comprises a preassembling plate, a containing cavity is formed in the preassembling plate, a connecting rod is inserted into the preassembling plate, and an expansion plate is installed on the connecting rod. During use, the preassembling plate is connected with the relay in advance, during use, the switch box is inserted into the containing cavity, the insertion plate is arranged in the fall between the connecting rod and the expansion plate, the expansion plate shields the insertion plate so as to limit the trend of separation of the switch box and the preassembling plate, and the insertion rod is inserted into the insertion hole, so that the switch box is prevented from being separated from the preassembling plate. The rotation of the insertion plate is limited, the limiting plate abuts against the insertion rod to limit the sliding of the insertion rod, when disassembly is needed, the limiting plate is slid to release the sliding limitation on the insertion rod, then the insertion plate is rotated to be separated from the fall, the switch box can be taken out, and the convenience of the device in disassembly is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of relays, and in particular to an auxiliary switch and a nanocrystalline relay. Background Art

[0002] A relay is an electrical control device that causes a predetermined step change in the controlled quantity in the electrical output circuit when the change in the input quantity reaches the specified requirement. It has an interactive relationship between the control system (also known as the input circuit) and the controlled system (also known as the output circuit). It is usually used in automated control circuits. It is actually an "automatic switch" that uses a small current to control the operation of a large current. Therefore, it plays the role of automatic regulation, safety protection, and circuit conversion in the circuit. Existing relays also use auxiliary switches to control the on and off of the relay's internal path.

[0003] When in use, existing auxiliary switches are mostly installed on the panel of the relay, and the panel of the relay is installed on the relay by bolts or rigid clamps. When the conductor on the auxiliary switch has a problem and needs to be replaced, additional tools are required, making replacement and maintenance more troublesome.

[0004] Therefore, the present invention proposes an auxiliary switch and a nanocrystalline relay to improve this problem. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the above-mentioned background technology, and the present invention provides an auxiliary switch and a nanocrystalline relay.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] An auxiliary switch, comprising:

[0008] A pre-installed plate is provided with a receiving cavity, a connecting rod is inserted into the pre-installed plate, an expansion plate is installed on the connecting rod, and the diameter of the expansion plate is larger than the diameter of the connecting rod so as to form a drop between the connecting rod and the expansion plate;

[0009] A switch box is used to be inserted in the accommodating cavity. A plug-in plate is hinged on the switch box to be inserted in the drop. A connecting spring is installed on the switch box. An insertion rod is installed on the free end of the connecting spring. A socket for accommodating the insertion rod is provided on the plug-in plate. A limiting plate for resisting the insertion rod is slidably installed on the switch box.

[0010] Furthermore, a cavity is provided in the switch box, a rotating rod is rotatably installed in the cavity, two symmetrical splints are slidably installed on the switch box, one end of the splint passes through the switch box and is located in the cavity, a return spring is installed between the splints, a hinged rod is hinged on the free end of the splint, one end of the rotating rod passes through the inner wall of the switch box and is located on the outside, a driving rod is installed on the other end, both ends of the driving rod are hinged to the two hinged rods respectively, a protrusion is installed on the end of the rotating rod located on the outside, a fixing plate is installed on the switch box, a pulling spring is installed on the fixing plate, a limited rotation plate is slidably installed on the free end of the pulling spring, and a groove for accommodating the protrusion is provided on the limited rotation plate.

[0011] Furthermore, a connecting plate is installed in the cavity, the clamping plate is connected to the connecting plate through a wire, a reset spring is installed in the cavity, a conductor plate is installed on the free end of the reset spring, a switch button is rotatably installed on the switch box, and a resistance plate for resisting the conductor plate is installed on the switch button. When the resistance plate resists the conductor plate, a passage is formed between the conductor plate and the connecting plate.

[0012] Furthermore, a water drop plate is installed on the switch button shaft, a push spring is installed on the switch box, and a separation plate is installed on the free end of the push spring. The separation plate is used to resist the rotation limit plate. When the separation plate resists the rotation limit plate, the protrusion is separated from the groove.

[0013] Furthermore, the connecting spring is installed in the cavity, a through slot is provided on the switch box, the insertion rod is slidably engaged with the through slot, a shielding plate for shielding the through slot is installed on the insertion rod, and a shielding slot for accommodating the shielding plate is provided in the through slot.

[0014] Furthermore, a slope is provided on the side of the rotation limiting plate that contacts the separation plate.

[0015] Furthermore, a knob is installed on the outer end of the rotating rod.

[0016] Furthermore, a guide rod is installed on the fixed plate, and a guide hole for accommodating the guide rod is opened on the rotation-limiting plate.

[0017] The present invention further provides a nanocrystalline relay, comprising any of the auxiliary switches described above, and further comprising:

[0018] The relay housing is provided with a receiving groove for receiving the switch box. The relay housing is provided with a threaded hole. The connecting rod is provided with an external thread so that the connecting rod is threadedly connected to the threaded hole.

[0019] Furthermore, a conductor rod is installed in the accommodating groove, and the clamping plate is used to clamp the conductor rod.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. When the present invention is in use, the pre-installed plate and the relay are connected in advance. When in use, the switch box is inserted into the accommodating cavity, and the plug-in plate is set in the drop between the connecting rod and the expansion plate. The expansion plate blocks the plug-in plate and thus limits the tendency of the switch box and the pre-installed plate to separate. The plug-in rod is inserted into the insertion hole to limit the rotation of the plug-in plate. The limiting plate contacts the plug-in rod to limit the sliding of the plug-in rod. When disassembly is required, the sliding limiting plate releases the sliding restriction on the plug-in rod, and then the plug-in plate is rotated to separate it from the drop, and the switch box can be taken out, which increases the convenience of the device during disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the auxiliary switch structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the switch box of the present invention;

[0024] Figure 3 This is another schematic diagram of the three-dimensional structure of the switch box of the present invention;

[0025] Figure 4 It is a three-dimensional schematic diagram of part of the structure of the present invention;

[0026] Figure 5 This is a three-dimensional cross-sectional view of the switch box structure of the present invention;

[0027] Figure 6 This is another three-dimensional cross-sectional view of the switch box structure of the present invention;

[0028] Figure 7 This is a schematic structural diagram of the connecting plate and the conductor plate of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the rotating rod of the present invention;

[0030] Figure 9 It is an exploded view of part of the structure of the present invention;

[0031] Figure 10 This is another three-dimensional cross-sectional view of the switch box structure of the present invention;

[0032] Figure 11 This is a schematic diagram of the three-dimensional structure of the relay housing of the present invention;

[0033] Figure 12 This is a schematic diagram of the connection between the auxiliary switch and the relay housing of the present invention;

[0034] Reference numerals: 1, pre-installed plate; 101, accommodating cavity; 102, connecting rod; 103, expansion plate; 2, switch box; 201, plug plate; 202, connecting spring; 203, plug rod; 204, plug hole; 205, limit plate; 3, cavity; 301, rotating rod; 302, clamping plate; 303, return spring; 304, hinged rod; 305, driving rod; 306, bump; 307, fixing plate; 308, Pull spring; 309, rotation limit plate; 3010, groove; 4, connecting plate; 5, reset spring; 6, conductor plate; 7, switch button; 8, resistance plate; 9, water drop plate; 10, push spring; 11, separation plate; 12, through groove; 13, shielding plate; 14, shielding groove; 15, knob; 16, guide rod; 17, guide hole; 18, relay housing; 19, receiving groove; 20, threaded hole; 21, conductor rod. DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0036] like Figures 1-10 As shown, an auxiliary switch provided by one embodiment of the present invention includes:

[0037] The pre-installed plate 1 has a receiving cavity 101 formed thereon. A connecting rod 102 is inserted into the pre-installed plate 1. An expansion plate 103 is mounted on the connecting rod 102. The diameter of the expansion plate 103 is larger than that of the connecting rod 102 so that a drop is formed between the connecting rod 102 and the expansion plate 103. When in use, the pre-installed plate 1 is connected to the relay in advance. The drop between the expansion plate 103 and the connecting rod 102 forms a cavity with the outer surface of the pre-installed plate 1.

[0038] The switch box 2 is inserted into the accommodating cavity 101. A plug-in plate 201 is hingedly connected to the switch box 2 for inserting into the drop. During installation, the switch box 2 is inserted into the accommodating cavity 101. The inner wall of the accommodating cavity 101 blocks and restricts the side walls of the switch box 2. At this time, the plug-in plate 201 is rotated to insert it into the drop. The expansion plate 103 blocks and restricts the plug-in plate 201, thereby limiting the tendency of the switch box 2 to separate from the pre-installed board 1.

[0039] The switch box 2 is provided with a connecting spring 202, and an inserting rod 203 is installed on the free end of the connecting spring 202. A socket 204 for accommodating the inserting rod 203 is provided on the plugging plate 201. A limiting plate 205 for resisting the inserting rod 203 is slidably installed on the switch box 2. There are multiple inserting rods 203, and in this embodiment, there are four, two in each group, and they are symmetrically distributed on both sides of the switch box 2. The inserting rods 203 on the same side of the connecting spring 202 are close to each other, so that when the plugging plate 201 is rotated and inserted into the drop, the inserting rod 203 will not block the plugging plate 201. When the plugging plate 201 is inserted into the drop, the socket 204 is aligned with the inserting rod 203, and the plugging rod 203 is opened. The sliding limiting plate 205 is moved between the insertion rods 203, thereby interfering with the insertion rods 203, so that the insertion rods 203 move away from each other and are inserted into the insertion holes 204. At this time, the connecting spring 202 is stretched, exerting a force in the opposite direction on the insertion rods 203, so that the insertion rods 203 conflict with the limiting plate 205, thereby also limiting the sliding of the limiting plate 205, thereby increasing the stability of the device when in use. When the relay is in use, it and the auxiliary switch are both located in the protective shell and are less affected by external forces. Therefore, the connecting spring 202 forces the insertion rod 203 to conflict with the limiting plate 205, which can also make the limiting plate 205 more stable when in use.

[0040] When disassembly is required, the sliding limiting plate 205 is released from the interference with the insertion rod 203. At this time, the connecting spring 202 pulls the insertion rod 203 away from the insertion hole 204. At this time, the plug plate 201 is rotated to separate it from the drop, so that the switch box 2 can be separated from the pre-installed plate 1, which increases the convenience of disassembly of the device;

[0041] Compared with the prior art, when in use, the pre-installed board 1 is connected to the relay in advance. When in use, the switch box 2 is inserted into the accommodating cavity 101, and the plug-in plate 201 is arranged in the drop between the connecting rod 102 and the expansion plate 103. The plug-in plate 201 is blocked by the expansion plate 103 to limit the tendency of the switch box 2 to separate from the pre-installed board 1, and the plug-in rod 203 is inserted into the insertion hole 204 to limit the rotation of the plug-in plate 201. The limiting plate 205 conflicts with the plug-in rod 203 to limit the sliding of the plug-in rod 203. When disassembly is required, the sliding limiting plate 205 is used to release the sliding restriction of the plug-in rod 203, and then the plug-in plate 201 is rotated to separate it from the drop, and the switch box 2 can be taken out, which increases the convenience of the device during disassembly.

[0042] like Figure 4 、 Figure 8 and Figure 10As shown, part of the structure of the switch box 2 is disclosed. A cavity 3 is defined in the switch box 2. A rotating rod 301 is rotatably mounted in the cavity 3. The rotating rod 301 is rotatably mounted on the switch box 2 via an axis. Two symmetrical clamping plates 302 are slidably mounted on the switch box 2. One end of the clamping plate 302 passes through the switch box 2 and is located in the cavity 3. A return spring 303 is installed between the clamping plates 302. The return spring 303 forces the clamping plates 302 to move away from each other. When the auxiliary switch and the relay are installed, the conductor on the relay is clamped and connected by sliding the clamping plates 302. The clamping plates 302 are made of copper or other conductive materials. The clamping of the clamping plates 302 increases the connection strength between the device and the relay.

[0043] A hinged rod 304 is hinged on the free end of the splint 302. One end of the rotating rod 301 passes through the inner wall of the switch box 2 and is located on the outside. A driving rod 305 is installed on the other end. The two ends of the driving rod 305 are respectively hinged to the two hinged rods 304. Since there are two splints 302, there are two hinged rods 304, which are configured as rod 1 and rod 2. Rod 1 and rod 2 are not in the same plane, so that when rod 1 and rod 2 rotate closer to each other, the free ends of the two can overlap, thereby improving the feasibility of the device.

[0044] When the rotating rod 301 rotates, the positions of the two ends of the driving rod 305 are changed, and the position of the hinged rod 304 hinged to the driving rod 305 is changed, and the two clamping plates 302 are pulled closer to each other.

[0045] A protrusion 306 is mounted on one end of the rotating rod 301 located on the outside. A fixing plate 307 is mounted on the switch housing 2. A pulling spring 308 is mounted on the fixing plate 307. A rotation limiting plate 309 is slidably mounted on the free end of the pulling spring 308. The rotation limiting plate 309 has a groove 3010 for accommodating the protrusion 306. The pulling spring 308 forces the rotation limiting plate 309 toward the fixing plate 307. When the rotating rod 301 is rotated to bring the clamping plates 302 closer together, the protrusion 306 aligns with the groove 3010. When the protrusion 306 is inserted into the groove 3010, the inner wall of the groove 3010 blocks the side wall of the protrusion 306, thereby limiting the rotation of the rotating rod 301.

[0046] When the device is in use, first pull the limiting plate 309 away from the fixed plate 307, then rotate the rotating rod 301, and force the two clamping plates 302 to move closer to each other by pulling the driving rod 305 and the hinge rod 304, and then release the limiting plate 309 so that the groove 3010 can accommodate the protrusion 306, limiting the rotation of the rotating rod 301 and clamping the conductor on the relay through the clamping plate 302, thereby increasing the connection strength of the device.

[0047] like Figure 5 and Figure 7 As shown, part of the structure in the cavity 3 is disclosed. A connecting plate 4 is installed in the cavity 3. The clamping plate 302 is connected to the connecting plate 4 through a wire. A plurality of contacts are installed on the connecting plate 4. A plurality of conductors are also installed in the switch box 2. A reset spring 5 is installed in the cavity 3. A conductor plate 6 is installed on the free end of the reset spring 5. A switch button 7 is rotatably installed on the switch box 2. A contact plate 8 for resisting the conductor plate 6 is installed on the switch button 7. When the contact plate 8 resists the conductor plate 6, the conductor plate 6 and the connecting plate 4 form a passage. When in use, the connecting plate 4, the clamping plate 302, and the conductor plate 6 and the conductor in the switch box 2 form a complete path, and the return spring 5 forces the conductor plate 6 to move away from the connecting plate 4, thereby disconnecting the path. A plurality of protrusions are installed on the rotating shaft of the switch button 7. The protrusions are made of rubber and can be deformed. A plate body is installed on the switch box 2. The plate body is provided with a channel that rotates with the rotating shaft of the switch button 7. A groove body for accommodating the protrusions is provided in the channel. The switch button 7 is clamped in the groove body through the protrusions to increase the stability between the switch button 7 and the plate body. A channel is provided on the switch box 2 that runs through its side wall. The free end of the contact plate 8 is located in the cavity 3 through the channel;

[0048] When the device is in use, by rotating the switch button 7, the contact plate 8 is also rotated, and the contact plate 8 is used to resist the conductor plate 6, forcing the conductor plate 6 to approach the connecting plate 4 and contact the connecting plate 4, so that a path is formed. At this time, the switch button 7 is in the starting state. When the switch button 7 is rotated in the opposite direction, the contact plate 8 is driven to release the resistance to the conductor plate 6, and the return spring 5 pushes the conductor plate 6 to separate from the connecting plate 4, thereby disconnecting the path and enabling the switch to function as a switch. At this time, the switch button 7 is in the circuit-breaking state.

[0049] Among them, the cavity 3 can also be installed with structures such as an electromagnetic coil, an iron core, an armature and a reaction spring, which is consistent with the tripping structure in the existing relay, so that when the device is short-circuited, the switch button 7 can be forced to rotate to complete the tripping, thereby increasing the safety of the device.

[0050] like Figure 4 and Figure 7 As shown, part of the structure on the switch button 7 is disclosed. A water drop plate 9 is installed on the rotation shaft of the switch button 7. When the switch button 7 is rotated, the free end of the water drop plate 9 is driven to perform a circular motion around the axis of the rotation shaft of the switch button 7. A push spring 10 is installed on the switch box 2. A separation plate 11 is installed on the free end of the push spring 10. The separation plate 11 is used to resist the rotation limit plate 309. When the separation plate 11 resists the rotation limit plate 309, the protrusion 306 is separated from the groove 3010. When the switch button 7 is in the off-circuit state, the free end of the water drop plate 9 is driven to resist the separation plate 11, so that the separation plate 11 resists the rotation limit plate 309, forcing the rotation limit plate 309 to move away from the fixed plate 307, so that the rotation of the rotating rod 301 is restored. When the switch button 7 is in the on state, the free end of the water drop plate 9 is away from the separation plate 11, and the push spring 10 forces the separation plate 11 to move away from the rotation limit plate 309, which will not affect the rotation restriction of the rotating rod 301, thereby increasing the practicality of the device.

[0051] like Figure 6 As shown, part of the structure in the cavity 3 is disclosed. The connecting spring 202 is installed in the cavity 3. A through slot 12 is provided on the switch box 2. The insertion rod 203 slides with the through slot 12. A shielding plate 13 for shielding the through slot 12 is installed on the insertion rod 203. A shielding slot 14 for accommodating the shielding plate 13 is provided in the through slot 12. The connecting spring 202 is located in the cavity 3 and is used to protect the connecting spring 202. A plate body is installed at the end of the insertion rod 203, and the plate body is slidably installed in the through slot 12. The shielding plate 13 is connected to the plate body, and limits the side wall of the plate body on the insertion rod 203 through the inner wall of the through groove 12, so that it can only slide in a straight line direction, thereby increasing the stability of the insertion rod 203 when sliding. When the plate body slides in the through groove 12, the shielding plate 13 also slides in the shielding groove 14, so that the shielding plate 13 will continue to block the through groove 12, reducing the possibility of the cavity 3 being connected to the outside world, reducing the possibility of dust entering the cavity 3 and causing damage to electrical components, and increasing the practicality of the device.

[0052] like Figure 4 As shown, the specific structure on the rotation limit plate 309 is disclosed. An inclined surface is provided on the side of the rotation limit plate 309 that contacts the separation plate 11. When the separation plate 11 contacts the rotation limit plate 309, the separation plate 11 is guided by the inclined surface, so that the separation plate 11 can better contact the rotation limit plate 309, thereby increasing the feasibility of the device.

[0053] like Figure 4 As shown, the specific structure on the rotating rod 301 is disclosed. A knob 15 is installed on the outer end of the rotating rod 301. The knob 15 is in the shape of a hexagonal prism, providing a gripping position for the operator, reducing the possibility of slipping when rotating the rotating rod 301, and making it easier for the operator to rotate the rotating rod 301.

[0054] like Figure 4 As shown, the specific structure on the fixed plate 307 is disclosed. A guide rod 16 is installed on the fixed plate 307, and a guide hole 17 for accommodating the guide rod 16 is opened on the rotation limiting plate 309. The inner wall of the guide hole 17 restricts the side wall of the guide rod 16, forcing the rotation limiting plate 309 and the guide rod 16 to approach or move away from the fixed plate 307 only in a straight line direction, thereby increasing the stability of the rotation limiting plate 309 when sliding.

[0055] like Figure 11 and Figure 12 As shown, the present invention further provides a nanocrystalline relay, comprising any of the above auxiliary switches, and in some embodiments, further comprising:

[0056] The relay housing 18 is provided with a receiving slot 19 for accommodating the switch box 2. The relay housing 18 is provided with a threaded hole 20, and the connecting rod 102 is provided with external threads for threaded connection with the threaded hole 20. The magnetic material within the relay is nanocrystalline, which can increase the contact force between the contacts. Therefore, when a larger instantaneous surge current flows through the contact group, the generated electromotive force cannot cause the closed contact group to repel. This improves the relay's ability to withstand overload surge currents. After project research and development experiments, the relay can withstand a current of 2700A for 10 seconds at a rated current of 200A, that is, 13.5Ie / 10s, and Ie>200A.

[0057] When installing the auxiliary switch, the pre-installed plate 1 is connected through the threaded connection between the connecting rod 102 and the threaded hole 20, and the accommodating cavity 101 is connected to the accommodating groove 19 to accommodate the switch box 2. When disassembling, since there is no need to disassemble the pre-installed plate 1, the threaded connection between the pre-installed plate 1 and the relay housing 18 will not affect the convenience of disassembly of the device.

[0058] like Figure 11 As shown, part of the structure inside the accommodating groove 19 is disclosed. A conductor rod 21 is installed in the accommodating groove 19, and the clamping plate 302 is used to clamp the conductor rod 21. During use, when the rotating rod 301 rotates to force the clamping plates 302 to approach each other, the clamping plates 302 clamp the conductor rod 21, thereby enabling the switch box 2 to be electrically connected to the conductor rod 21 through the clamping plates 302, so that the passage in the switch box 2 can be connected to the passage in the relay housing 18, thereby increasing the feasibility of the device.

[0059] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An auxiliary switch, characterized in that: include: A pre-installed plate (1) is provided with a receiving cavity (101), a connecting rod (102) is inserted into the pre-installed plate (1), an expansion plate (103) is installed on the connecting rod (102), and the diameter of the expansion plate (103) is larger than the diameter of the connecting rod (102) so as to form a height difference between the connecting rod (102) and the expansion plate (103); A switch box (2) is provided for being inserted into an accommodating cavity (101), wherein a plug plate (201) for being inserted into the drop is hingedly connected to the switch box (2), a connecting spring (202) is installed on the switch box (2), an insertion rod (203) is installed on the free end of the connecting spring (202), a socket (204) for accommodating the insertion rod (203) is provided on the plug plate (201), and a limiting plate (205) for resisting the insertion rod (203) is slidably installed on the switch box (2).

2. An auxiliary switch according to claim 1, characterized in that: A cavity (3) is provided in the switch box (2), a rotating rod (301) is rotatably installed in the cavity (3), two symmetrical clamping plates (302) are slidably installed on the switch box (2), one end of the clamping plate (302) passes through the switch box (2) and is located in the cavity (3), a return spring (303) is installed between the clamping plates (302), a hinged rod (304) is hinged on the free end of the clamping plate (302), one end of the rotating rod (301) passes through the inner wall of the switch box (2) and is located outside, and the other end is installed on the inner wall of the switch box (2). A driving rod (305) is provided, and both ends of the driving rod (305) are hinged to two hinged rods (304) respectively. A protrusion (306) is installed on one end of the rotating rod (301) located on the outside. A fixing plate (307) is installed on the switch box (2). A pulling spring (308) is installed on the fixing plate (307). A limited rotation plate (309) is slidably installed on the free end of the pulling spring (308). A groove (3010) for accommodating the protrusion (306) is provided on the limited rotation plate (309).

3. An auxiliary switch according to claim 2, characterized in that: A connecting plate (4) is installed in the cavity (3), the clamping plate (302) is connected to the connecting plate (4) via a wire, a return spring (5) is installed in the cavity (3), a conductor plate (6) is installed on the free end of the return spring (5), a switch button (7) is rotatably installed on the switch box (2), and a contact plate (8) for contacting the conductor plate (6) is installed on the switch button (7), and when the contact plate (8) contacts the conductor plate (6), a passage is formed between the conductor plate (6) and the connecting plate (4).

4. An auxiliary switch according to claim 3, characterized in that: A water drop plate (9) is mounted on the rotating shaft of the switch button (7), a push spring (10) is mounted on the switch box (2), and a separation plate (11) is mounted on the free end of the push spring (10). The separation plate (11) is used to abut against the rotation limit plate (309). When the separation plate (11) abuts against the rotation limit plate (309), the protrusion (306) is separated from the groove (3010).

5. An auxiliary switch according to claim 4, characterized in that: The connecting spring (202) is installed in the cavity (3), a through slot (12) is provided on the switch box (2), an insertion rod (203) is slidably engaged with the through slot (12), a shielding plate (13) for shielding the through slot (12) is installed on the insertion rod (203), and a shielding slot (14) for accommodating the shielding plate (13) is provided in the through slot (12).

6. The auxiliary switch according to claim 5, characterized in that: An inclined surface is provided on the side of the rotation limiting plate (309) that contacts the separation plate (11).

7. An auxiliary switch according to claim 6, characterized in that: A knob (15) is mounted on one end of the rotating rod (301) located outside.

8. An auxiliary switch according to claim 7, characterized in that: A guide rod (16) is mounted on the fixed plate (307), and a guide hole (17) for accommodating the guide rod (16) is provided on the rotation-limiting plate (309).

9. A nanocrystalline relay comprising the auxiliary switch according to any one of claims 1 to 9, characterized in that: Also includes: A relay housing (18) is provided with a receiving groove (19) for receiving the switch box (2), a threaded hole (20) is provided on the relay housing (18), and an external thread is provided on the connecting rod (102) so that the connecting rod (102) is threadedly connected to the threaded hole (20).

10. The nanocrystalline relay according to claim 9, characterized in that: A conductor rod (21) is installed in the accommodating groove (19), and the clamping plate (302) is used to clamp the conductor rod (21).

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