Pushing structure of high-voltage direct-current relay

Abstract

This invention provides a driving structure for a high-voltage DC relay, comprising: a fixed bracket, a stop plate, a movable spring, and an elastic element. The fixed bracket includes two fixed side arms, a receiving plate, and a pushing rod. The two fixed side arms are respectively disposed on both sides of the receiving plate, and the pushing rod is connected to the bottom of the receiving plate. One end of the stop plate is connected to the end of one fixed side arm, and the other end of the stop plate is connected to the end of the other fixed side arm. One end of the elastic element abuts against the receiving plate, and the other end of the elastic element abuts against the movable spring. The movable spring abuts against the stop plate, and the stop plate is provided with an arc-isolating portion. The above-mentioned driving structure for the high-voltage DC relay adopts a bottom-up assembly method, with the elastic element, movable spring, and stop plate stacked sequentially. The stop plate is connected and fixed to the two fixed side arms, making the assembly process simple and fast, improving the assembly efficiency of the high-voltage DC relay. Furthermore, the arc-isolating portion isolates electric arcs, improving the reverse electrical life of the high-voltage DC relay.

Description

Technical Field

[0001] This invention relates to the technical field of high-voltage DC relays, and in particular to a driving structure for a high-voltage DC relay. Background Technology

[0002] Currently, Chinese patent CN105551897B discloses a high-voltage DC relay and its assembly method, including two stationary contacts and a moving assembly; the moving assembly includes a moving spring part, a main spring, and a push rod assembly; the characteristic is that the push rod assembly consists of two independent parts: a push rod part and a U-shaped basket. The push rod part includes a straight-plate type fixing piece and a push rod fixed together with insulating plastic. After the main spring, the moving spring part, and the U-shaped basket are sequentially installed on the top of the push rod part, the two ends of the straight-plate type fixing piece are respectively fixed to the bottom of the side of the U-shaped basket, so that the main spring is elastically tensioned between the bottom surface of the moving spring part and the insulating plastic of the push rod part, and the moving spring plate of the moving spring part is pushed towards the inner side of the top of the U-shaped basket.

[0003] However, during the assembly process of the U-shaped basket, one side of the basket must first be engaged with one end of the fixing plate, and then the other side of the basket must be engaged with the other end of the fixing plate. Since the moving spring and main spring are housed within the space of the U-shaped basket, the assembly process makes it easy for the moving spring and main spring to misalign and fall off, resulting in significant assembly difficulties for the push rod assembly. Furthermore, because the U-shaped basket is made of metal, when a reverse arc is generated, the U-shaped basket cannot extinguish the arc due to short-circuiting, making the relay prone to burnout and reducing its reverse electric life. Summary of the Invention

[0004] Therefore, it is necessary to provide a driving structure for a high-voltage DC relay to address the technical problems of high assembly difficulty and low reverse electrical life.

[0005] A driving structure for a high-voltage DC relay includes: a fixed bracket, a stop plate, a movable spring, and an elastic element. The fixed bracket includes two fixed side arms, a receiving plate, and a pushing rod. The two fixed side arms are respectively disposed on both sides of the receiving plate, and the pushing rod, facing away from the fixed side arms, is connected to the bottom of the receiving plate. One end of the stop plate is connected to the end of one of the fixed side arms, and the other end of the stop plate is connected to the end of the other fixed side arm. The elastic element and the movable spring are both disposed between the two fixed side arms. One end of the elastic element abuts against the receiving plate, and the other end of the elastic element abuts against the movable spring. The side of the movable spring facing away from the elastic element abuts against the stop plate. The stop plate is provided with an arc-blocking portion for isolating electric arcs.

[0006] In one embodiment, the elastic element is a compression spring.

[0007] In one embodiment, the receiving plate is provided with a limiting protrusion on the side facing the compression spring, the limiting protrusion being inserted into the end of the compression spring adjacent to the receiving plate.

[0008] In one embodiment, a limiting groove is formed on the side of the movable spring facing the compression spring, and one end of the compression spring adjacent to the movable spring is inserted into the limiting groove.

[0009] In one embodiment, the fixed side arm has a first connecting hole at its end, one end of the stop piece is inserted into one of the first connecting holes, and the other end of the stop piece is inserted into another of the first connecting holes.

[0010] In one embodiment, the stop piece has a second connecting hole on each side, and the end of each fixed side arm is inserted into a second connecting hole, and the two fixed side arms are riveted to the stop piece respectively.

[0011] In one embodiment, the arc-blocking portion is an insulating coating, which is applied to the central region of the stop piece.

[0012] In one embodiment, the arc-blocking portion is an insulating layer that wraps around the outer surface of the central region of the stop piece.

[0013] In one embodiment, the stop piece has a strip-shaped structure, and each of the fixed side arms is connected to one short side of the stop piece, and the thickness of the stop piece decreases uniformly from one short side to the other short side.

[0014] In one embodiment, the two fixed side arms, the receiving plate, and the push rod are integrally formed.

[0015] The aforementioned high-voltage DC relay's actuation structure employs a bottom-up assembly method, with the elastic element, moving spring, and stop plate stacked sequentially. The stop plate is connected and fixed to two fixed side arms on both sides. These fixed side arms also limit the elastic element during assembly, preventing it from tilting. The entire assembly process is simple and quick, greatly improving the assembly efficiency of the high-voltage DC relay. Furthermore, the arc-isolating section isolates the electric arc, improving the reverse electrical life of the high-voltage DC relay. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the driving structure of a high-voltage DC relay in one embodiment;

[0017] Figure 2This is a disassembled structural diagram of the driving structure of a high-voltage DC relay in one embodiment;

[0018] Figure 3 This is a schematic diagram of the stop plate of the drive structure of a high-voltage DC relay in one embodiment;

[0019] Figure 4 This is a schematic diagram showing the working state of a high-voltage DC relay.

[0020] Figure 5 This is another schematic diagram of the driving structure of the high-voltage DC relay in one embodiment;

[0021] Figure 6 This is a schematic diagram of another structure of the stop plate of the high-voltage DC relay's drive structure in one embodiment;

[0022] Figure 7 This is a schematic diagram of another operating state of the high-voltage DC relay;

[0023] Figure 8 This is another schematic diagram of the stop plate of the drive structure of a high-voltage DC relay in one embodiment;

[0024] Figure 9 This is a schematic diagram of another working state of the high-voltage DC relay. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] Please also refer to Figures 1 to 3This invention provides a driving structure 10 for a high-voltage DC relay, comprising: a fixed bracket 100, a stop plate 200, a movable spring 300, and an elastic element 400. The fixed bracket 100 includes two fixed side arms 110, a receiving plate 120, and a pushing rod 130. The two fixed side arms 110 are respectively disposed on both sides of the receiving plate 120, and the pushing rod 130 is connected to the bottom of the receiving plate 120, facing away from the fixed side arms 110. One end of the stop plate 200 is connected to the end of one fixed side arm 110, and the other end of the stop plate 200 is connected to the end of the other fixed side arm 110. The elastic element 400 and the movable spring 300 are both disposed between the two fixed side arms 110, with one end of the elastic element 400 abutting against the receiving plate 120 and the other end of the elastic element 400 abutting against the movable spring 300. The side of the movable spring 300 facing away from the elastic member 400 abuts against the stop plate 200. The stop plate 200 is provided with an arc-blocking portion 210, which is used to block electric arcs.

[0032] The aforementioned high-voltage DC relay's actuating structure 10 employs a bottom-up assembly method, with the elastic element 400, moving spring 300, and stop plate 200 stacked sequentially. The stop plate 200 is connected and fixed to two fixed side arms 110 on both sides. During assembly, the two fixed side arms 110 also limit the elastic element 400, ensuring it does not tilt. The entire assembly process is simple and quick, greatly improving the assembly efficiency of the high-voltage DC relay. Furthermore, the arc-isolating part 210 isolates the electric arc, improving the reverse electrical life of the high-voltage DC relay.

[0033] Please also refer to Figures 1 to 4 The working principle of the high-voltage DC relay's drive structure is as follows: When the coil inside the high-voltage DC relay is energized, under the action of electromagnetic force, the fixed bracket 100 drives the stop plate 200, the moving spring 300, and the elastic element 400 to move towards the stationary contact 500 of the high-voltage DC relay. The two ends of the moving spring 300 will contact the two stationary contacts 500 respectively, thus completing the circuit. At this time, the elastic element 400 is in an elastically compressed state, and a certain gap is formed between the stop plate 200 and the moving spring 300. Under the elastic force of the elastic element 400, the two ends of the moving spring 300 maintain a contact relationship with the two stationary contacts 500. When the coil is de-energized, the fixed bracket 100 drives the stop plate 200, the moving spring 300, and the elastic element 400 to move away from the stationary contact 500. The two ends of the moving spring 300 separate from the two stationary contacts 500, thus breaking the circuit. During the process of the moving spring 300 separating from the two stationary contacts 500, the elastic element 400 pushes the moving spring 300 toward the stop plate 200 until the moving spring 300 and the stop plate 200 come into contact.

[0034] The actuation structure of the high-voltage DC relay is assembled as follows: First, the elastic element 400 is placed on the receiving plate 120 between the two fixed side arms 110. Then, the moving spring 300 abuts against the end of the elastic element 400 away from the receiving plate 120. Finally, the stop plate 200 is pressed against the moving spring 300, and the ends of the two fixed side arms 110 are connected to the two sides of the stop plate 200 respectively. The elastic element 400 and the moving spring 300 are located between the receiving plate 120 and the stop plate 200. The entire assembly process proceeds from bottom to top, using a "stacking" method, making installation convenient and quick.

[0035] The fixed bracket 100 is used to support the elastic element 400, the movable spring 300, and the stop plate 200. In one embodiment, the fixed side arm 110 has a cuboid plate structure, the receiving plate 120 has a cuboid plate structure, and the push rod 130 has a cylindrical structure. This makes the fixed bracket 100 structure, composed of the two fixed side arms 110, the receiving plate 120, and the push rod 130, more stable and robust. The receiving plate 120 supports the elastic element 400. The two fixed side arms 110 limit the elastic element 400, preventing it from tilting outwards, thus facilitating assembly. The push rod 130 is a force-bearing component; electromagnetic force acts on the push rod 130 to drive the movement of the entire push structure. To strengthen the connection between the two fixed side arms 110, the receiving plate 120, and the push rod 130, in one embodiment, the two fixed side arms 110, the receiving plate 120, and the push rod 130 are integrally formed. In this way, the two fixed side arms 110, the receiving plate 120, and the push rod 130 are firmly connected, and the fixed bracket 100 has a certain impact resistance. During assembly, the two fixed side arms 110, the receiving plate 120, and the push rod 130 are not easily separated. This improves the strength of the fixed bracket 100 and enhances the structural stability of the high-voltage DC relay's drive structure.

[0036] The elastic element 400 provides an elastic force. When the two ends of the moving spring 300 contact the two stationary contacts 500, the elastic force of the elastic element 400 acts on the moving spring 300 to maintain the contact relationship between the moving spring 300 and the stationary contacts 500. In one embodiment, the elastic element 400 is a compression spring. A compression spring is a helical spring that withstands axial pressure. Compression springs have high elastic strength and high elastic force when recovering elastic deformation. This ensures that the elastic element 400 can stably maintain the contact relationship between the moving spring 300 and the stop plate 200. When the high-voltage DC relay operates and the moving spring 300 contacts the two stationary contacts 500, the elastic element 400 ensures a good contact relationship between the moving spring 300 and the two stationary contacts 500. In this way, the elastic potential energy of the elastic element 400 is increased, and the working stability of the high-voltage DC relay's actuation structure is improved.

[0037] The moving reed 300 is used to connect the circuit. When the high-voltage DC relay is connected to an external circuit, and the two stationary contacts 500 in the high-voltage DC relay are in contact with the two ends of the moving reed 300, the external circuit is connected, and current flows through the moving reed 300.

[0038] The stop piece 200 further limits the elastic element 400 and the moving spring 300, ensuring a stable and secure actuation structure for the high-voltage DC relay. One end of the stop piece 200 is connected to the end of one fixed-side arm 110, and the other end is connected to the end of another fixed-side arm 110. In one embodiment, please refer to... Figure 2 The fixed side arm 110 has a first connecting hole 111 at its end. One end of the stop piece 200 is inserted into one of the first connecting holes 111, and the other end of the stop piece 200 is inserted into another first connecting hole 111. In other words, the stop piece 200 and the two fixed side arms 110 are in a snap-fit ​​relationship, thus ensuring a stable connection between the stop piece 200 and the two fixed side arms 110. This improves the stability of the connection between the stop piece 200 and the two fixed side arms 110.

[0039] Furthermore, each end of the stop piece 200 is provided with a first connecting block 220, and each first connecting block 220 is inserted into a first connecting hole 111 and connected to a fixed side arm 110. In this embodiment, the first connecting hole 111 is a rectangular hole, and the first connecting block 220 has a cuboid structure, with the first connecting hole 111 and the first connecting block 220 fitting together. In another embodiment, the first connecting hole 111 is a circular hole, and the first connecting block 220 has a cylindrical structure, with the first connecting hole 111 and the first connecting block 220 fitting together. In this way, each first connecting block 220 is inserted into a first connecting hole 111 to engage the stop piece 200 with the two fixed side arms 110. This achieves the engaging relationship between the stop piece 200 and the two fixed side arms 110, improving the connection strength between the stop piece 200 and the two fixed side arms 110.

[0040] Please see Figure 5In one embodiment, the stop piece 200 has second connecting holes 230 on both sides, and the end of each fixed side arm 110 is inserted into a second connecting hole 230. The two fixed side arms 110 are riveted to the stop piece 200. In this embodiment, the second connecting hole 230 is a rectangular hole, and the end of the fixed side arm 110 has a cuboid structure, with the second connecting hole 230 fitting to the end of the fixed side arm 110. In another embodiment, the second connecting hole 230 is a circular hole, and the end of the fixed side arm 110 has a cylindrical structure, with the second connecting hole 230 fitting to the end of the fixed side arm 110. After the ends of the two fixed side arms 110 are inserted into the stop piece 200, the connection between the two fixed side arms 110 and the stop piece 200 is further secured by riveting. In another embodiment, the two fixed side arms 110 are welded to the stop piece 200. In this way, the stop piece 200 is not easily separated from the two fixed side arms 110, which further strengthens the connection between the two fixed side arms 110 and the stop piece 200.

[0041] To improve the anti-adhesion capability of the movable spring 300, in one embodiment, please refer to [the relevant documentation / reference]. Figure 6 and Figure 7 The stop plate 200 has a strip-shaped structure. Each fixed side arm 110 is connected to one short side of the stop plate 200. The thickness of the stop plate 200 decreases uniformly from one long side to the other. That is, the thickness of the stop plate 200 is not uniform, and the side of the stop plate 200 facing the moving spring 300 is an inclined surface. When the moving spring 300 abuts against the stop plate 200, the moving spring 300 will tilt. When the high-voltage DC relay operates, the coil is energized, and the moving spring 300 moves towards the two stationary terminals, with its two ends contacting the two stationary terminals in sequence. When the coil is de-energized, the moving spring 300 moves away from the two stationary terminals, with its two ends separating from the two stationary terminals in sequence. In the field of relay technology, the stationary terminals are usually set as a hemispherical structure. During the process of the moving spring 300 moving towards the two stationary terminals, the two stationary terminals abut against the two ends of the moving spring 300 in sequence, and the moving spring 300 will change from inclined to horizontal. During the contact process between the two stationary terminals and the moving spring 300, the contact point between the stationary terminals and the moving spring 300 will roll along the hemispherical arc surface of the stationary terminals, thereby effectively preventing adhesion. In this way, the anti-adhesion ability of the moving spring 300 is enhanced, and the durability of the moving spring 300 is improved.

[0042] Furthermore, please refer to the following: Figure 8 and Figure 9In one embodiment, the stop piece 200 has a strip-shaped structure, with each fixed side arm 110 connected to one short side of the stop piece 200. The thickness of the stop piece 200 decreases uniformly from one short side to the other. That is, the thickness of the stop piece 200 is not uniform, and the side of the stop piece 200 facing the movable spring 300 is an inclined surface. When the movable spring 300 abuts against the stop piece 200, the movable spring 300 will tilt. During the contact between the two stationary terminals and the movable spring 300, the movable spring 300 gradually changes from an inclined state to a horizontal state, and the contact point between the stationary terminals and the movable spring 300 will roll along the hemispherical arc surface of the stationary terminals, thereby effectively preventing adhesion. This enhances the anti-adhesion capability of the movable spring 300.

[0043] The arc-isolating part 210 is used to isolate electric arcs. When the moving spring 300 is about to contact the two stationary terminals, an electric arc will be generated between the two stationary terminals and the moving spring 300. (See also...) Figure 4 Especially in the event of a reverse arc 600, the arc short-circuits through the stop plate 200, easily causing the stop plate 200 to burn out, and even destroying the entire high-voltage DC relay. In one embodiment, the arc-isolating part 210 is an insulating coating, applied to the central area of ​​the stop plate 200. In this embodiment, the insulating coating is polytetrafluoroethylene (PTFE), which has excellent insulation properties, effectively isolating the reverse arc 600. PTFE also has excellent properties such as high temperature resistance, wear resistance, and corrosion resistance, thereby enhancing the durability of the arc-isolating part 210, allowing it to isolate the reverse arc 600 for a long period. This enhances the operational stability of the arc-isolating part 210 and improves the reverse electrical life of the high-voltage DC relay's drive structure.

[0044] In one embodiment, the arc-blocking portion 210 is an insulating layer that wraps around the outer surface of the central region of the stop piece 200. In this embodiment, the insulating layer is a polyvinyl chloride (PVC) layer. In another embodiment, the insulating layer is a polyethylene (PE) layer. Both PVC and PE are materials with excellent insulating properties, and also possess characteristics such as chemical stability, cold resistance, flame retardancy, aging resistance, and corrosion resistance. The insulating layer effectively isolates the reverse arc, preventing it from short-circuiting through the stop piece 200. This avoids reverse arc conduction and short-circuiting, further improving the reverse electrical life of the high-voltage DC relay's drive structure.

[0045] Please see Figure 2To limit the contact position between the compression spring and the receiving plate 120, in one embodiment, a limiting protrusion 121 is provided on the side of the receiving plate 120 facing the compression spring. The limiting protrusion 121 is inserted into the end of the compression spring adjacent to the receiving plate 120. In this embodiment, the limiting protrusion 121 is a cylindrical protrusion. The limiting protrusion 121 is inserted into the end of the compression spring to limit the contact position between the compression spring and the receiving plate 120, thereby making it less likely for the compression spring to wobble or tilt towards the receiving plate 120 during the assembly of the high-voltage DC relay's drive structure, and less likely for it to detach from the receiving plate 120 and pop out. This facilitates the user in assembling the elastic element 400 and improves the assembly efficiency of the high-voltage DC relay's drive structure.

[0046] To define the contact position between the compression spring and the movable spring 300, in one embodiment, please refer to... Figure 2 A limiting groove 310 is formed on the side of the movable spring 300 facing the compression spring, and one end of the compression spring adjacent to the movable spring 300 is inserted into the limiting groove 310. In this embodiment, the limiting groove 310 is a circular groove. The limiting groove 310 is adapted to the end of the elastic member 400. The insertion of one end of the compression spring adjacent to the movable spring 300 into the limiting groove 310 limits the contact position between the compression spring and the movable spring 300, making it less likely for the compression spring to move laterally, thereby making the contact relationship between the compression spring and the movable spring 300 more stable, and making it easier for the user to complete the assembly of the movable spring 300 and the elastic member 400. In this way, it is convenient for the user to complete the assembly of the movable spring 300, further improving the assembly efficiency of the drive structure of the high-voltage DC relay.

[0047] Furthermore, in one embodiment, a limiting boss (not shown) is provided on the side of the movable spring 300 facing the compression spring. The limiting boss is inserted into the end of the compression spring adjacent to the movable spring 300. In this embodiment, the limiting boss has a cylindrical structure. The limiting boss is adapted to the end of the elastic member 400 adjacent to the movable spring 300. The limiting boss is inserted into the end of the compression spring adjacent to the movable spring 300 to limit the contact position between the compression spring and the movable spring 300. The compression spring is less likely to move laterally, thereby making the contact relationship between the compression spring and the movable spring 300 more stable, and making it easier for the user to complete the assembly operation of the movable spring 300 and the elastic member 400. In this way, it is convenient for the user to complete the assembly of the movable spring 300, and the assembly efficiency of the drive structure of the high-voltage DC relay is further improved.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A driving structure for a high-voltage DC relay, characterized in that, include: Fixed bracket, stop plate, movable spring, and elastic element; The fixed bracket includes two fixed side arms, a receiving plate, and a push rod; the two fixed side arms are respectively disposed on both sides of the receiving plate, and the push rod is connected to the bottom of the receiving plate, facing away from the fixed side arms. One end of the stop piece is connected to the end of one of the fixed side arms, and the other end of the stop piece is connected to the end of the other fixed side arm; the elastic element and the movable spring are both disposed between the two fixed side arms, one end of the elastic element abuts against the receiving plate, and the other end of the elastic element abuts against the movable spring; the side of the movable spring facing away from the elastic element abuts against the stop piece; the stop piece is provided with an arc-blocking portion, which is used to isolate electric arc; The arc-blocking portion is an insulating coating, which is applied to the central region of the stop piece.

2. The driving structure of the high-voltage DC relay according to claim 1, characterized in that, The elastic element is a compression spring.

3. The driving structure of the high-voltage DC relay according to claim 2, characterized in that, The receiving plate is provided with a limiting protrusion on the side facing the compression spring, and the limiting protrusion is inserted into the end of the compression spring adjacent to the receiving plate.

4. The driving structure of the high-voltage DC relay according to claim 3, characterized in that, The movable spring sheet has a limiting groove on the side facing the compression spring, and one end of the compression spring adjacent to the movable spring sheet is inserted into the limiting groove.

5. The driving structure of the high-voltage DC relay according to claim 1, characterized in that, The fixed side arm has a first connecting hole at its end. One end of the stop piece is inserted into one of the first connecting holes, and the other end of the stop piece is inserted into another of the first connecting holes.

6. The driving structure of the high-voltage DC relay according to claim 1, characterized in that, The stop piece has a second connecting hole on each side, and the end of each fixed side arm is inserted into a second connecting hole. The two fixed side arms are riveted to the stop piece respectively.

7. The driving structure of the high-voltage DC relay according to claim 1, characterized in that, The stop piece has a strip-shaped structure, and each of the fixed side arms is connected to one short side of the stop piece. The thickness of the stop piece decreases uniformly from one short side to the other short side.

8. The driving structure of the high-voltage DC relay according to any one of claims 1 to 7, characterized in that, The two fixed side arms, the receiving plate, and the push rod are integrally formed.

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