Mechanism for preventing horizontal deflection of the high-voltage DC relay

Abstract

Mechanism for preventing horizontal deflection of the high-voltage DC relay, comprising an arrangement of dynamic contacts (15, 16), wherein the arrangement of dynamic contacts (15, 16) comprises a movable spring disc (1) and dynamic contacts (15, 16) arranged at the left and right ends of the movable spring disc (1), respectively, and wherein the upper segment of the push rod (3) is located on the yoke plate (4) and is attached to the movable spring disc (1), and wherein a positioning plate (6) is arranged on the yoke plate (4), and wherein a left restoring spring (13) is connected between the left end of the movable spring disc (1) and the positioning plate (6), and wherein a right restoring spring (14) is connected between the right end of the movable spring disc (1) and the positioning plate (6), characterized in thatthat an upwardly extending spring mounting plate (17, 18) is arranged at each of the lower positions of the left end and the right end of the positioning plate (6) associated with the movable spring disc (1), wherein a lower mounting hole (12) of the spring is formed on the spring mounting plate, and wherein a protective ring is fitted to the inner wall of the lower mounting hole (12) of the spring.

Description

Technical field

[0001] The present invention relates to a high-voltage direct current relay, in particular a mechanism for preventing the horizontal deflection of the high-voltage direct current relay in order to prevent a deflection of the internal movable spring disc of the high-voltage direct current relay. State of the art

[0002] In the high-voltage DC relay, the movable iron core will drive the push rod to move upwards and downwards, so that the dynamic contacts and static contacts attached to the movable spring disc at the top of the push rod touch each other or are separated from each other.From a standstill, the push rod used to connect the movable iron core and the movable spring disc only has axial guidance, while there is no positional limitation in the circumferential direction of the push rod. As a result, the push rod can rotate circumferentially during the upward and downward movement process, causing the movable spring disc attached to the push rod to deflect horizontally. This prevents the dynamic and static contacts from aligning precisely, thus impairing the reliability of the relay.

[0003] JP 2013-243 110 A relates to a relay comprising several stationary terminals with stationary contact points; a movable contact with a movable contact point; a drive element for moving the movable contact in a first direction towards each stationary terminal and in a second direction away from each stationary terminal; a first insulating container; and a second container forming an airtight space in which the movable contact and each stationary contact are housed together with the first container and the several stationary terminals. The relay further comprises an element of magnetic material that is not mechanically connected to the movable contact and the drive element and is located in the airtight space closer to the first direction than the movable contact.

[0004] JP 2005-26183A relates to an electromagnetic switching device for opening and closing an electrical circuit in a movable body powered by electrical energy. The electromagnetic device comprises a magnetic coil, a movable iron core, a yoke and another yoke, a pair of fixed contacts, a pair of movable contacts, a shaft, and a container body to house the shaft, wherein a pair of movable contacts is brought into contact with or separated from the pair of fixed contacts by the shaft by advancing / retracting the movable iron core along an axis through the electromagnetic device.

[0005] JP H06- 203 725 A discloses a sealed container filled with electrically insulating gas to form an airtight space for receiving the contact sealing element attached to one end of the bellows attached to the container body. Content of the invention

[0006] An objective of the present invention is to provide a mechanism for preventing the horizontal deflection of the high-voltage DC relay, which can prevent horizontal deflection of the movable spring disc, ensure accurate contact between the dynamic and static contacts of the relay, and improve the reliability of the relay.

[0007] To achieve the above objective, the present invention employs the following technical solution: a mechanism for preventing the horizontal deflection of the high-voltage DC relay, comprising an arrangement of dynamic contacts, wherein the arrangement of dynamic contacts includes a movable spring disc and dynamic contacts arranged at the left and right ends of the movable spring disc, respectively, and wherein the upper segment of the push rod is located on the yoke plate and is attached to the movable spring disc, and wherein a positioning plate is arranged on the yoke plate, and wherein a left restoring spring is connected between the left end of the movable spring disc and the positioning plate, and wherein a right restoring spring is connected between the right end of the movable spring disc and the positioning plate.

[0008] In the present invention, a left return spring and a right return spring are arranged at the left and right ends of the movable spring disc, which are provided with dynamic contacts. On the one hand, a separation force can be provided between the dynamic and static contacts. Since the left return spring and the right return spring act directly on the movable spring disc, the dynamic contacts and the static contacts can be quickly separated from each other when necessary, and the relay reacts quickly.Furthermore, both ends of the movable spring disc exert tension on the positioning plate. Therefore, the left and right return springs always provide a force to prevent horizontal rotation of the movable spring disc, ensuring precise alignment of the dynamic and static contacts, reliable contact between them, and preventing contact between the movable spring disc and other parts from causing a fault. The positioning plate is made of insulating material, such as plastic.

[0009] According to the present invention, an upwardly extending spring mounting plate is arranged at each of the lower positions of the left end and the right end of the positioning plate, respectively, corresponding to the movable spring disc. The spring mounting plate has a lower mounting hole for the spring, and a protective ring is fitted to the inner wall of the lower mounting hole. The protective ring can be an iron ring or made of a material of a specific thickness to prevent the left and right return springs from tearing the spring mounting plate of the positioning plate, thus ensuring the reliability of the relay.

[0010] Preferably, the axis of the left return spring and the axis of the right return spring are each aligned parallel to the axis of the push rod, with the connection point between the left return spring and the movable spring disc, as well as the connection point between the right return spring and the movable spring disc, each being located between two dynamic contacts and approaching the inner surface of the dynamic contacts. The axis of the left return spring and the axis of the right return spring being aligned parallel to the axis of the push rod further improves the stability of the movable spring disc in the horizontal direction.Preferably, the connection point between the left return spring and the movable spring disc, as well as the connection point between the right return spring and the movable spring disc, are located on the front and rear sides of the movable spring disc, respectively. This arrangement allows the force exerted on the movable spring disc by the left and right return springs to prevent deflection to be further increased.

[0011] Preferably, the connection point between the left return spring and the movable spring disc, as well as the connection point between the right return spring and the movable spring disc, are both located on the front or rear side of the movable spring disc. The position of the left and right return springs can be selected as required. If the left and right return springs are located on the same side, the movable spring disc will tilt. When the dynamic and static contacts make contact and are separated, a kneading motion occurs to ensure contact between the dynamic and static contacts.

[0012] Preferably, the connection point between the left return spring and the movable spring disc, as well as the connection point between the right return spring and the movable spring disc, are located on a center line of the movable spring that is symmetrical with respect to the front and rear sides.

[0013] Preferably, an upper mounting hole for the spring is provided at each end of the movable spring disc, wherein the spring mounting plate comprises a left spring mounting plate and a right spring mounting plate, and wherein a lower mounting hole for the spring is formed on the left spring mounting plate, and wherein a lower mounting hole for the spring is formed on the right spring mounting plate.

[0014] Preferably, the left and right return springs are each an S-shaped tension spring. The above arrangement ensures the stability of the present invention.

[0015] Preferably, a metallic permeability clamp and an insulating plate are arranged on the yoke plate, forming an enclosed structure, wherein the yoke plate and the insulating plate are fastened by a fastening element such that the metallic permeability clamp is confined between the yoke plate and the insulating plate, and wherein the insulating plate, the metallic permeability clamp and the yoke plate form a chamber for receiving the arrangement of static contacts and the arrangement of dynamic contacts, and wherein the arrangement of static contacts comprises an extended end and static contacts attached to the extended end, and wherein the extended end and the insulating plate are fastened together, and wherein the upper end face of the positioning plate and the lower end of the metallic permeability clamp abut each other.and wherein the lower end face of the positioning plate and the yoke plate abut each other. The above arrangement is used to secure the positioning plate, wherein the positioning plate is firmly clamped between the metallic permeability clamp and the yoke plate.

[0016] Preferably, a positioning frame extends upwards from the positioning plate, with the metallic permeability clamp mounted on the periphery of the positioning frame. The arrangement of the positioning frame ensures that the metallic permeability clamp has no deflection in the horizontal direction.

[0017] The present invention has the following advantages: horizontal deflection of the movable spring disc can be avoided, precise contact between the dynamic and static contacts of the relay can be ensured, and the reliability of the relay can be improved. Short description of the drawing Fig. Figure 1 shows a first schematic structural view of the first embodiment of the present invention. Fig. Figure 2 shows a second schematic structural view of the first embodiment of the present invention. Fig. Figure 3 shows a third schematic structural view of the first embodiment of the present invention. Fig. 4 shows a cross-sectional view according to Fig. 3. Fig. 5 shows a top view according to Fig. 3. Fig. Figure 6 shows a first schematic structural view of the second embodiment of the present invention. Fig. Figure 7 shows a second schematic structural view of the second embodiment of the present invention. Fig. Figure 8 shows a third schematic structural view of the second embodiment of the present invention. Fig. Figure 9 shows a fourth schematic structural view of the second embodiment of the present invention. Fig. Figure 10 shows a first schematic structural view of the third embodiment of the present invention. Fig. Figure 11 shows a second schematic structural view of the third embodiment of the present invention. Fig. Figure 12 shows a third schematic structural view of the third embodiment of the present invention. Detailed embodiments First embodiment

[0018] As in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. Figure 5 shows a mechanism for preventing the horizontal deflection of the high-voltage DC relay according to the present invention, comprising an arrangement of dynamic contacts, wherein the arrangement of dynamic contacts comprises a movable spring disc 1 and dynamic contacts arranged at the left and right ends of the movable spring disc 1, wherein the upper segment of the push rod 3, which is attached to the movable iron core 2, is located on the yoke plate 4 and is attached to the movable spring disc 1, wherein a main spring 5 is mounted on the push rod 3, and wherein a positioning plate 6 made of insulating plastic material is arranged on the yoke plate 4, and wherein a left-hand restoring spring 13 is connected between the left end of the movable spring disc 1 and the positioning plate 6.and wherein a right-hand restoring spring 14 is connected between the right end of the movable spring disc 1 and the positioning plate 6, and wherein the left-hand restoring spring 13 and the right-hand restoring spring 14 are each an S-shaped tension spring. The upper segment of the push rod 3 located above the yoke plate 4 is formed as a projection 21, wherein the lower end of the main spring 5 and the projection 21 abut each other, and wherein the upper end of the main spring 5 and the movable spring disc 1 abut each other. The axis of the left-hand restoring spring 13 and the axis of the right-hand restoring spring 14 are each aligned parallel to the axis of the push rod 3.wherein the connection point between the left return spring 13 and the movable spring disc 1 and the connection point between the right return spring 14 and the movable spring disc 1 are each located between two dynamic contacts and approach the inside of the dynamic contacts.

[0019] An upper mounting hole 11 for the spring is provided at the left end of the movable spring disc, and an upper mounting hole 11 for the spring is also provided at the right end of the movable spring disc. The upper end of the left return spring 13 is located within the upper mounting hole of the spring at the left end, and the upper end of the right return spring 14 is located within the upper mounting hole of the spring at the right end. The dynamic contact comprises a left dynamic contact 15 and a right dynamic contact 16. The upper mounting hole 11 for the spring at the left end of the movable spring disc is located on the inside of the left dynamic contact 15, and the upper mounting hole 11 for the spring at the right end of the movable spring disc is located on the inside of the right dynamic contact 16.

[0020] At each of the lower positions of the left end and the right end of the positioning plate 6, respectively, an upwardly extending spring mounting plate is arranged, wherein a lower mounting hole 12 for the spring is formed on the spring mounting plate, and wherein a protective ring is fitted to the inner wall of the lower mounting hole 12 for the spring, and wherein the protective ring is an iron ring. The spring mounting plate comprises a left spring mounting plate 17 located on the left side and a right spring mounting plate 18 located on the right side, wherein the left spring mounting plate 17 and the right spring mounting plate 18 each form a lower mounting hole 12 for the spring.

[0021] Preferably, the connection point between the left return spring and the movable spring disc, as well as the connection point between the right return spring and the movable spring disc, are located on the front and rear sides of the movable spring disc, respectively, wherein the upper mounting hole of the spring of the left return spring 13 is located on the front side of the movable spring disc, and wherein the upper mounting hole of the spring of the right return spring 14 is located on the rear side of the movable spring disc.The section of the left spring mounting plate 17 and the right spring mounting plate 18 is T-shaped, wherein the left spring mounting plate and the right spring mounting plate each comprise a first section and a second section, such that the section of the left spring mounting plate and the right spring mounting plate is T-shaped, and wherein the lower mounting hole of the spring is provided on the first section, and wherein the first section of the left spring mounting plate and the first section of the right spring mounting plate are aligned parallel to each other, and wherein the second section of the left spring mounting plate and the second section of the right spring mounting plate are aligned parallel to each other.

[0022] As in Fig. As shown in Figure 1, a metallic permeability clamp 7 and an insulating plate 8 made of ceramic material are arranged on the upper side of the yoke plate 4, forming an enclosed structure, wherein the yoke plate 4 and the insulating plate 8 are fastened by a fastening element such that the metallic permeability clamp 7 is confined between the yoke plate 4 and the insulating plate 8, and wherein the insulating plate 8, the metallic permeability clamp 7 and the yoke plate 4 form a chamber for receiving the arrangement of static contacts and the arrangement of dynamic contacts, and wherein the arrangement of static contacts comprises an extended end 10 and static contacts 9 attached to the extended end, and wherein the extended end 10 and the insulating plate 8 form a soldered or threaded connection.and wherein the upper end face of the positioning plate and the lower end of the metallic permeability clamp abut each other, and wherein the lower end face of the positioning plate and the yoke plate abut each other, and wherein the positioning plate 6 is firmly clamped between the metallic permeability clamp 7 and the yoke plate 4. A positioning frame 22 extends upwards from the positioning plate 6, with the metallic permeability clamp 7 being mounted on the periphery of the positioning frame to ensure that the metallic permeability clamp has no deflection in the horizontal direction.

[0023] As in Fig. 1 and Fig. As shown in Figure 2, the insulating plate 8 and the yoke plate 4 are each a square structure, with a first fastening hole formed at each of the four corners of the insulating plate 8, and a second fastening hole 20 formed at each of the four corners of the yoke plate 4, and a transfer notch for the second fastening hole 20 formed at each of the four corners of the positioning plate 6. The fastening element is a screw 19, with one screw 19 fitted into each first fastening hole, and the positions of the first fastening holes and the positions of the second fastening holes being aligned, and the screw 19 forming a threaded connection through the first fastening hole with the second fastening hole, such that the lower end of the screw 19 is fastened to the yoke plate and the head section of the screw 19 tightly presses the insulating plate 8. Second embodiment

[0024] As in Fig. 6, Fig. 7, Fig. 8 and Fig. Figure 9 shows a mechanism for preventing the horizontal deflection of the high-voltage DC relay according to the present invention, comprising an arrangement of dynamic contacts, wherein the arrangement of dynamic contacts comprises a movable spring disc 1 and dynamic contacts arranged at the left and right ends of the movable spring disc 1, wherein the upper segment of the push rod 3, which is attached to the movable iron core 2, is located on the yoke plate 4 and is attached to the movable spring disc 1, wherein a main spring 5 is mounted on the push rod 3, and wherein a positioning plate 6 made of insulating plastic material is arranged on the yoke plate 4, and wherein a left-hand restoring spring 13 is connected between the left end of the movable spring disc 1 and the positioning plate 6.and wherein a right-hand restoring spring 14 is connected between the right end of the movable spring disc 1 and the positioning plate 6, and wherein the left-hand restoring spring 13 and the right-hand restoring spring 14 are each an S-shaped tension spring. The upper segment of the push rod 3 located above the yoke plate 4 is formed as a projection 21, wherein the lower end of the main spring 5 and the projection 21 abut each other, and wherein the upper end of the main spring 5 and the movable spring disc 1 abut each other. The axis of the left-hand restoring spring 13 and the axis of the right-hand restoring spring 14 are each aligned parallel to the axis of the push rod 3.wherein the connection point between the left return spring 13 and the movable spring disc 1 and the connection point between the right return spring 14 and the movable spring disc 1 are each located between two dynamic contacts and approach the inside of the dynamic contacts.

[0025] An upper mounting hole 11 for the spring is provided at the left end of the movable spring disc, and an upper mounting hole 11 for the spring is also provided at the right end of the movable spring disc. The upper end of the left return spring 13 is located within the upper mounting hole of the spring at the left end, and the upper end of the right return spring 14 is located within the upper mounting hole of the spring at the right end. The dynamic contact comprises a left dynamic contact 15 and a right dynamic contact 16. The upper mounting hole 11 for the spring at the left end of the movable spring disc is located on the inside of the left dynamic contact 15, and the upper mounting hole 11 for the spring at the right end of the movable spring disc is located on the inside of the right dynamic contact 16.

[0026] At each of the lower positions of the left end and the right end of the positioning plate 6, respectively, an upwardly extending spring mounting plate is arranged, wherein a lower mounting hole 12 for the spring is formed on the spring mounting plate, and wherein a protective ring is fitted to the inner wall of the lower mounting hole 12 for the spring, and wherein the protective ring is an iron ring. The spring mounting plate comprises a left spring mounting plate 17 located on the left side and a right spring mounting plate 18 located on the right side, wherein the left spring mounting plate 17 and the right spring mounting plate 18 each form a lower mounting hole 12 for the spring.

[0027] Preferably, the connection point between the left return spring and the movable spring disc, as well as the connection point between the right return spring and the movable spring disc, are both located on the front side of the movable spring disc, wherein the upper mounting hole of the spring of the left return spring 13 is located on the front side of the movable spring disc, and wherein the upper mounting hole of the spring of the right return spring 14 is also located on the front side of the movable spring disc.

[0028] A metallic permeability clamp 7 and a ceramic insulating plate 8 are arranged on the upper side of the yoke plate 4, forming an enclosed structure. The yoke plate 4 and the insulating plate 8 are fastened by a fastening element such that the metallic permeability clamp 7 is confined between the yoke plate 4 and the insulating plate 8. The insulating plate 8, the metallic permeability clamp 7, and the yoke plate 4 form a chamber for receiving the arrangement of static contacts and the arrangement of dynamic contacts. The arrangement of static contacts comprises an extended end 10 and static contacts 9 attached to the extended end. The extended end 10 and the insulating plate 8 form a soldered or threaded connection.and wherein the upper end face of the positioning plate and the lower end of the metallic permeability clamp abut each other, and wherein the lower end face of the positioning plate and the yoke plate abut each other, and wherein the positioning plate 6 is firmly clamped between the metallic permeability clamp 7 and the yoke plate 4. A positioning frame 22 extends upwards from the positioning plate 6, with the metallic permeability clamp 7 being mounted on the periphery of the positioning frame to ensure that the metallic permeability clamp has no deflection in the horizontal direction.

[0029] The insulating plate 8 and the yoke plate 4 are each square structures, with a first fastening hole formed at each of the four corners of the insulating plate 8, and a second fastening hole 20 formed at each of the four corners of the yoke plate 4, and a transfer notch for the second fastening hole 20 formed at each of the four corners of the positioning plate 6. The fastening element is a screw 19, with one screw 19 fitted into each first fastening hole, and the positions of the first fastening holes and the positions of the second fastening holes being aligned, and the screw 19 forming a threaded connection through the first fastening hole with the second fastening hole 20, such that the lower end of the screw 19 is fastened to the yoke plate and the head section of the screw 19 tightly presses the insulating plate 8. Third embodiment

[0030] As in Fig. 10, Fig. 11 and Fig. Figure 12 shows a mechanism for preventing the horizontal deflection of the high-voltage DC relay according to the present invention, comprising an arrangement of dynamic contacts, wherein the arrangement of dynamic contacts comprises a movable spring disc 1 and dynamic contacts arranged at the left and right ends of the movable spring disc 1, wherein the upper segment of the push rod 3, which is attached to the movable iron core 2, is located on the yoke plate 4 and is attached to the movable spring disc 1, wherein a main spring 5 is mounted on the push rod 3, and wherein a positioning plate 6 made of insulating plastic material is arranged on the yoke plate 4, and wherein a left-hand restoring spring 13 is connected between the left end of the movable spring disc 1 and the positioning plate 6.and wherein a right-hand restoring spring 14 is connected between the right end of the movable spring disc 1 and the positioning plate 6, and wherein the left-hand restoring spring 13 and the right-hand restoring spring 14 are each an S-shaped tension spring. The upper segment of the push rod 3 located above the yoke plate 4 is formed as a projection 21, wherein the lower end of the main spring 5 and the projection 21 abut each other, and wherein the upper end of the main spring 5 and the movable spring disc 1 abut each other. The axis of the left-hand restoring spring 13 and the axis of the right-hand restoring spring 14 are each aligned parallel to the axis of the push rod 3.

[0031] An upper mounting hole 11 for the spring is provided at the left end of the movable spring disc, and an upper mounting hole 11 for the spring is also provided at the right end of the movable spring disc. The upper end of the left return spring 13 is located within the upper mounting hole of the spring at the left end, and the upper end of the right return spring 14 is located within the upper mounting hole of the spring at the right end. The dynamic contact comprises a left dynamic contact 15 and a right dynamic contact 16. The upper mounting hole 11 for the spring at the left end of the movable spring disc is located on the outside of the left dynamic contact 15, and the upper mounting hole 11 for the spring at the right end of the movable spring disc is located on the outside of the right dynamic contact 16.

[0032] At each of the lower positions of the left end and the right end of the positioning plate 6, respectively, an upwardly extending spring mounting plate is arranged, wherein a lower mounting hole 12 for the spring is formed on the spring mounting plate, and wherein a protective ring is fitted to the inner wall of the lower mounting hole 12 for the spring, and wherein the protective ring is an iron ring. The spring mounting plate comprises a left spring mounting plate 17 located on the left side and a right spring mounting plate 18 located on the right side, wherein the left spring mounting plate 17 and the right spring mounting plate 18 each form a lower mounting hole 12 for the spring.

[0033] The connection point between the left return spring 13 and the movable spring washer 1, as well as the connection point between the right return spring 14 and the movable spring washer 1, are located on a center line of the movable spring that is symmetrical with respect to the front and rear sides. Specifically, the upper mounting hole of the spring of the left return spring 13 and the upper mounting hole of the spring of the right return spring 14 are located on a center line of the movable spring washer that is symmetrical with respect to the front and rear sides. The left spring mounting plate 17 and the right spring mounting plate 18 are arranged symmetrically on the positioning plate 6, with the axis of the lower mounting hole 11 of the spring of the left spring mounting plate 17 and the axis of the lower mounting hole 11 of the spring of the right spring mounting plate 18 lying on the same straight line.

[0034] As in Fig. As shown in Figure 10, a metallic permeability clamp 7 and an insulating plate 8 made of ceramic material are arranged on the upper side of the yoke plate 4, forming an enclosed structure, wherein the yoke plate 4 and the insulating plate 8 are fastened by a fastening element such that the metallic permeability clamp 7 is confined between the yoke plate 4 and the insulating plate 8, and wherein the insulating plate 8, the metallic permeability clamp 7 and the yoke plate 4 form a chamber for receiving the arrangement of static contacts and the arrangement of dynamic contacts, and wherein the arrangement of static contacts comprises an extended end 10 and static contacts 9 attached to the extended end, and wherein the extended end 10 and the insulating plate 8 form a soldered or threaded connection.and wherein the upper end face of the positioning plate and the lower end of the metallic permeability clamp abut each other, and wherein the lower end face of the positioning plate and the yoke plate abut each other, and wherein the positioning plate 6 is firmly clamped between the metallic permeability clamp 7 and the yoke plate 4. A positioning frame 22 extends upwards from the positioning plate 6, with the metallic permeability clamp 7 being mounted on the periphery of the positioning frame to ensure that the metallic permeability clamp has no deflection in the horizontal direction.

[0035] As in Fig. 10 and Fig.As shown in Figure 12, the insulating plate 8 and the yoke plate 4 are each square structures, with a first fastening hole formed at each of the four corners of the insulating plate 8, and a second fastening hole 20 formed at each of the four corners of the yoke plate 4, and a transfer notch for the second fastening hole 20 formed at each of the four corners of the positioning plate 6. The fastening element is a screw 19, with one screw 19 fitted into each first fastening hole, and the positions of the first fastening holes and the positions of the second fastening holes being aligned, and the screw 19 forming a threaded connection through the first fastening hole with the second fastening hole, such that the lower end of the screw 19 is fastened to the yoke plate and the head section of the screw 19 tightly presses the insulating plate 8.

[0036] The present invention is used for the high-voltage DC relay. The present invention has the following advantages: horizontal deflection of the movable spring disc can be avoided, precise contact between the dynamic and static contacts of the relay can be ensured, and the reliability of the relay can be improved.

Claims

[1] A mechanism for preventing horizontal deflection of a high-voltage DC relay, comprising an array of dynamic contacts (15, 16), the array of dynamic contacts (15, 16) comprising a movable spring washer (1) and dynamic contacts (15, 16) arranged at the left and right ends of the movable spring washer (1), the upper segment of the push rod (3) being located on the yoke iron plate (4) and secured to the movable spring washer (1), a positioning plate (6) being arranged on the yoke iron plate (4), a left return force spring (13) being connected between the left end of the movable spring washer (1) and the positioning plate (6), and a right return force spring (14) being connected between the right end of the movable spring washer (1) and the positioning plate (6), characterized bythat an upwardly extending spring fastening plate (17, 18) is arranged at a lower position of the left end assigned to the movable spring washer (1) and a lower position of the right end of the positioning plate (6) assigned to the movable spring washer (1), wherein a lower fastening hole (12) of the spring is formed on the spring fastening plate, and wherein a protective ring is adapted to the inner wall of the lower fastening hole (12) of the spring. [2] A mechanism for preventing horizontal deflection of the high-voltage DC relay according to claim 1, characterized bythat the axis of the left return force spring (13) and the axis of the right return force spring (14) are each aligned parallel to the axis of the push rod (3), wherein the connection point between the left return force spring (13) and the movable spring washer (1) and the connection point between the right return force spring (14) and the movable spring washer (1) are each located between two dynamic contacts (15, 16) and approach the inside of the dynamic contacts (15, 16). [3] A mechanism for preventing horizontal deflection of the high-voltage DC relay according to claim 1, characterized by that the connection point between the left return force spring (13) and the movable spring washer (1) and the connection point between the right return force spring (14) and the movable spring washer (1) are located on the front and rear sides of the movable spring washer (1). [4] A mechanism for preventing horizontal deflection of the high-voltage DC relay according to claim 1, characterized by that the connection point between the left return force spring (13) and the movable spring washer (1) as well as the connection point between the right return force spring (14) and the movable spring washer (1) are both located on the front side of the movable spring washer (1) or the rear side of the movable spring washer (1). [5] A mechanism for preventing horizontal deflection of the high-voltage DC relay according to claim 1, characterized by that the connection point between the left return force spring (13) and the movable spring washer (1) and the connection point between the right return force spring (14) and the movable spring washer (1) are located on a center line of the movable spring which is symmetrical with respect to the front and rear sides. [6] A mechanism for preventing horizontal deflection of the high-voltage DC relay according to claim 1, characterized by that an upper fastening hole (12) of the spring is provided at each of the two ends of the movable spring washer (1), wherein the spring fastening plate (17, 18) comprises a left spring fastening plate (17) and a right spring fastening plate (18), and wherein a lower fastening hole (12) of the spring is formed on the left spring fastening plate (17), and wherein a lower fastening hole (12) of the spring is formed on the right spring fastening plate (18). [7] A mechanism for preventing horizontal deflection of the high-voltage DC relay according to claim 1, characterized by that the left return force spring (13) and the right return force spring (14) are each an S-shaped tension spring. [8] A mechanism for preventing horizontal deflection of the high-voltage DC relay according to claim 1, characterized bythat a metallic permeability clamp (7) and an insulating plate (8) are arranged on the yoke iron plate (4), forming an enclosed structure, wherein the yoke iron plate (4) and the insulating plate (8) are fastened via a fastening element so that the metallic permeability clamp is delimited between the yoke iron plate and the insulating plate, and wherein the insulating plate, the metallic permeability clamp (7), and the yoke iron plate (4) form a chamber for accommodating the arrangement of static contacts (9) and the arrangement of dynamic contacts, and wherein the arrangement of static contacts (9) comprises a projecting end (10) and static contacts (9) fastened to the projecting end, and wherein the projecting end and the insulating plate (8) are fastened to one another, and wherein the upper end surface of the positioning plate (6) and the lower end of the metallic permeability clamp (7) abut each other,and wherein the lower end surface of the positioning plate (6) and the yoke iron plate (4) abut each other., [9] A mechanism for preventing horizontal deflection of the high-voltage DC relay according to claim 8, characterized by that a positioning frame (22) extends upwards from the positioning plate (6), wherein the metallic permeability clamp (7) is placed on the periphery of the positioning frame (22).

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