High-voltage relay

Abstract

The utility model discloses a high-voltage relay, which relates to the technical field of electric power equipment and comprises a shell, a contact assembly, an annular magnetizer, a coil assembly, a magnetomotive element and an elastic assembly. The contact assembly is arranged on the shell and has a closed state and an open state; the annular magnetizer is arranged in a cavity of the shell, an annular cavity is formed in the annular magnetizer, and the annular cavity is arranged in the circumferential direction of the annular magnetizer; the coil assembly is sleeved on the annular magnetizer, and the coil assembly is located in the annular cavity; the magnetomotive element is inserted into the annular magnetizer, the magnetomotive element is in transmission connection with the contact assembly, and the magnetomotive element can be driven by the coil assembly to move so that the contact assembly can be kept in a closed state or an open state; and the elastic assembly is connected with the magnetomotive element and is used for driving the magnetomotive element to reset. According to the high-voltage relay of the utility model, the magnetic field distribution of the internal magnetizer is uniform, the magnetic flux leakage is less, and the magnetic tension value is large.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power equipment, especially relates to a high voltage relay. BACKGROUND

[0002] The relay is an electric control device, is when the change of input reaches the specified requirement, in the electrical output circuit makes the controlled quantity has the predetermined step change one kind of electric appliance. High voltage relay is usually applied to the control circuit of automation, it actually is with small current or small voltage to control big current or big voltage operation an automatic switch.

[0003] The relay is usually composed of coil, core, armature, contact spring piece etc. When the coil is electrified, will produce the magnetic field around the core, this magnetic field will attract the armature, make the armature drive the moving contact and static contact attract, thereby make the circuit electrification. However, the magnetic field around the core in the relay structure of the prior art has small attraction to the armature, cannot meet the demand in some occasions, and the magnetic flux leakage of the core is more, and the energy loss is big. SUMMARY

[0004] The utility model aims at at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a high voltage relay, the magnetic field distribution of internal magnetic conductor is uniform, and the magnetic flux leakage is less, and the magnetic force value is big.

[0005] The high voltage relay according to the utility model embodiment, comprising: a shell, the shell has a closed chamber;

[0006] Contact assembly, the contact assembly is arranged in the shell, and the contact assembly has a closed state and an open state;

[0007] Annular magnetic conductor, the annular magnetic conductor is arranged in the chamber of the shell, and the annular magnetic conductor is internally provided with an annular chamber, and the annular chamber is arranged along the circumference direction of the annular magnetic conductor;

[0008] Coil assembly, the coil assembly is sleeved on the annular magnetic conductor, and the coil assembly is located in the annular chamber;

[0009] Magnetic moving element, the magnetic moving element is inserted in the annular magnetic conductor, the magnetic moving element is in transmission connection with the contact assembly, and the magnetic moving element can be driven to move by the coil assembly to make the contact assembly keep the closed state or the open state;

[0010] Elastic assembly, the elastic assembly is connected with the magnetic moving element, and the elastic assembly is used for driving the magnetic moving element to reset.

[0011] The high-voltage relay has at least the following beneficial effects: the coil assembly is sleeved on the annular magnetic conductor, a magnetic field can be generated in the annular magnetic conductor when the coil assembly is electrified, the coil assembly is arranged in the annular chamber with a specific structure, the leakage of magnetic flux can be greatly reduced, the magnetic field of the annular magnetic conductor is uniformly distributed, and the annular magnetic conductor generates a large magnetic pulling force on the magnetic moving element; the magnetic moving element drives the touch assembly to move to maintain the touch point assembly in a closed state or an open state; and the elastic assembly is used for resetting the magnetic moving element when the coil assembly is de-energized.

[0012] According to some embodiments of the present application, the annular magnetic conductor comprises a first magnetic conducting part and a second magnetic conducting part spliced along the axial direction of the annular magnetic conductor, a first annular groove is formed on the splicing surface of the first magnetic conducting part, a second annular groove is formed on the splicing surface of the second magnetic conducting part, and the first annular groove and the second annular groove are in communication with each other and form the annular chamber.

[0013] According to some embodiments of the present application, the coil assembly comprises an annular support and a conductive coil, both ends of the annular support are respectively provided with annular baffles, the conductive coil is wound on the side wall of the annular support, and the conductive coil is located between the two annular baffles, the annular support is sleeved on the annular magnetic conductor, and the annular support is located in the annular chamber.

[0014] According to some embodiments of the present application, one side surface of the annular baffle close to the bottom of the first groove is provided with a first protruding part, one side surface of the annular baffle close to the bottom of the second groove is provided with a second protruding part, the bottom of the first groove is provided with a first groove, the bottom of the second groove is provided with a second groove, the first protruding part is embedded in the first groove, and the second protruding part is embedded in the second groove.

[0015] According to some embodiments of the present application, the first magnetic conducting part is provided with a first bolt, the first bolt penetrates through the first magnetic conducting part and is connected to the annular support, the second magnetic conducting part is provided with a second bolt, and the second bolt penetrates through the second magnetic conducting part and is connected to the annular support.

[0016] According to some embodiments of the present application, the touch point assembly comprises fixed touch points and a movable touch point, two fixed touch points are arranged, the movable touch point is connected to the magnetic moving element, and the magnetic moving element can drive the movable touch point to move towards the fixed touch points and connect the two fixed touch points.

[0017] According to some embodiments of the utility model, the magnetic moving element includes a push-pull rod and a moving iron core, the push-pull rod is inserted into the annular magnetic conductor, the push-pull rod can move along the axial direction of the push-pull rod, the moving iron core is sleeved on the push-pull rod and fixed with the push-pull rod, and the moving iron core is arranged on the inner side of the coil assembly, and the moving contact is fixed on the push-pull rod.

[0018] According to some embodiments of the utility model, the annular magnetic conductor is provided with a fixed iron core, the fixed iron core is fixed with the annular magnetic conductor, the fixed iron core is located on the inner side of the coil assembly, the push-pull rod passes through the fixed iron core, and the fixed iron core is located between the moving iron core and the moving contact.

[0019] According to some embodiments of the utility model, the push-pull rod is sleeved with a spring, one end of the spring is connected with the push-pull rod, the other end of the spring is connected with the annular magnetic conductor, and the spring is configured in a compressed state and used for driving the moving contact to move away from the fixed contact.

[0020] According to some embodiments of the utility model, the cavity of the shell is provided with a first positioning cylinder and a second positioning cylinder, the annular magnetic conductor is arranged between the first positioning cylinder and the second positioning cylinder, one end of the first positioning cylinder abuts against the inner wall of the shell, the other end of the first positioning cylinder abuts against the annular magnetic conductor, one end of the second positioning cylinder abuts against the inner wall of the shell, and the other end of the second positioning cylinder abuts against the annular magnetic conductor.

[0021] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0022] The utility model will be further explained in combination with the drawings and embodiments, wherein:

[0023] Figure 1 It is the structure schematic drawing when the high voltage relay of the utility model embodiment is in the off state;

[0024] Figure 2 It is the structure schematic drawing when the high voltage relay of the utility model embodiment is in the closed state;

[0025] Figure 3 It is the sectional view of the high voltage relay of the utility model embodiment.

[0026] REFERENCE NUMERALS

[0027] The shell 100, the first positioning cylinder 110, the second positioning cylinder 120, the contact assembly 200, the fixed contact 210, the movable contact 220, the annular magnetic conductor 300, the annular cavity 301, the first magnetic conducting part 310, the first slot body 311, the first recess 312, the second magnetic conducting part 320, the second slot body 321, the second recess 322, the first bolt 330, the second bolt 340, the coil assembly 400, the annular support 410, the annular baffle 411, the first convex part 412, the second convex part 413, the conductive coil 420, the magnetic moving element 500, the push-pull rod 510, the movable iron core 520, the fixed iron core 530, the elastic assembly 600. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0029] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0030] In the description of the present application, the plural means more than two. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implying indicating the number of indicated technical features or implying indicating the sequence of indicated technical features.

[0031] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical solution.

[0032] The relay is an electric control device, which is an electric appliance that makes a predetermined step change in the controlled quantity in the electrical output circuit when the change of the input quantity reaches the specified requirement. The high-voltage relay is usually applied in the control circuit of automation, which is actually an automatic switch for controlling the operation of small current or small voltage by small current or small voltage.

[0033] The relay is generally composed of a coil, a core, an armature, contact spring blades, etc. When the coil is energized, a magnetic field is generated around the core, which attracts the armature, so that the moving contact is attracted to the static contact, thereby energizing the circuit. However, in the existing relay structure, the magnetic field generated around the core has a small attractive force on the armature, which cannot meet the requirements in some cases, and the leakage magnetic flux of the core is large, resulting in large energy loss.

[0034] If a magnetic conductor structure is proposed, the leakage of magnetic flux can be reduced, so that the attractive force of the magnetic field on the armature is increased under the condition that the same current is passed through the coil, thereby improving the reliability of the relay operation. Even if the same attractive force of the magnetic field on the armature is required, the reduction of the leakage of magnetic flux can also appropriately reduce the size of the current passed through the coil, thereby reducing energy consumption and improving efficiency.

[0035] Referring to Figure 1 , Figure 2 and Figure 3 , the high-voltage relay of one embodiment of the present application comprises a shell 100, a contact assembly 200, an annular magnetic conductor 300, a coil assembly 400, a magnetic moving element 500 and an elastic assembly 600.

[0036] The shell 100 has a closed chamber, and the contact assembly 200, the annular magnetic conductor 300, the coil assembly 400, the magnetic moving element 500 and the elastic assembly 600 can be arranged in the chamber and filled with sulfur hexafluoride gas in the chamber. The sulfur hexafluoride gas has good electrical insulation, which can effectively prevent the contact assembly 200 from being broken or short-circuited under high voltage, and ensure the safe operation of the high-voltage relay.

[0037] The contact assembly 200 is arranged in the shell 100, and the contact assembly 200 has a closed state and an open state; the annular magnetic conductor 300 is arranged in the chamber of the shell 100, and the annular magnetic conductor 300 has an annular chamber 301 arranged along the circumference of the annular magnetic conductor 300; the coil assembly 400 is sleeved on the annular magnetic conductor 300, and the coil assembly 400 is located in the annular chamber 301.

[0038] The annular chamber 301 is arranged in the interior of the annular magnetic conductor 300, and the annular chamber 301 has a ring structure like the annular magnetic conductor 300, and the two are coaxially arranged optimally. The coil assembly 400 is in the annular chamber 301, and the annular chamber 301 is a closed structure. After the coil assembly 400 is energized, the magnetic field generated by the coil assembly 400 is basically limited in the annular magnetic conductor 300, greatly reducing the leakage of the magnetic flux.

[0039] The magnetic moving element 500 is inserted into the annular magnetic conductor 300, and the magnetic moving element 500 is in transmission connection with the contact assembly 200. The magnetic moving element 500 can be driven to move by the coil assembly 400 to keep the contact assembly 200 in the closed state or the disconnected state.

[0040] When the coil assembly 400 is powered, the annular magnetic conductor 300 generates a magnetic field, and the magnetic field generates a magnetic force on the magnetic moving element 500 to drive the magnetic moving element 500 to move the contact assembly 200. If the coil assembly 400 is powered off when the contact assembly 200 is in the disconnected state, the coil assembly 400 is powered, and the magnetic moving element 500 will drive the contact assembly 200 to move and keep in the closed state. If the coil assembly 400 is powered off when the contact assembly 200 is in the closed state, the coil assembly 400 is powered, and the magnetic moving element 500 will drive the contact assembly 200 to move and keep in the disconnected state.

[0041] It should be understood that in the following embodiments, the coil assembly 400 is powered off when the contact assembly 200 is in the disconnected state.

[0042] The elastic assembly 600 is connected with the magnetic moving element 500, and the elastic assembly 600 is used to drive the magnetic moving element 500 to reset.

[0043] When the coil assembly 400 is powered, the magnetic moving element 500 drives the contact assembly 200 to move and keep in the closed state. After the current of the coil assembly 400 is turned off, the elastic assembly 600 drives the magnetic moving element 500 to reset, that is, the magnetic moving element 500 drives the contact assembly 200 to return to the disconnected state. Specifically, the elastic assembly 600 can be configured to always drive the contact assembly 200 to keep in the disconnected state. When the coil assembly 400 is powered, the magnetic moving element 500 drives the contact assembly 200 to move and keep in the closed state after overcoming the force of the elastic assembly 600.

[0044] The high-voltage relay with the above structure can still work normally after more than 90,000 start tests. During the test process, it is verified that the magnetic force of the magnetic field on the magnetic moving element 500 can reach 3600N, and the high-voltage relay can safely and effectively operate.

[0045] It can be understood that the annular magnetic conductor 300 includes a first magnetic conducting part 310 and a second magnetic conducting part 320 spliced along the axial direction of the annular magnetic conductor 300. The splicing surface of the first magnetic conducting part 310 is provided with a first annular groove body 311, and the splicing surface of the second magnetic conducting part 320 is provided with a second annular groove body 321. The first groove body 311 and the second groove body 321 are in communication with each other and form an annular chamber 301.

[0046] The annular magnetic conductor 300 is divided into the first magnetic conducting part 310 and the second magnetic conducting part 320, which facilitates the installation of the coil assembly 400 in the annular cavity 301. Since the annular cavity 301 is formed by the first slot body 311 and the second slot body 321, the coil assembly 400 can be first placed in the second slot body 321 of the second magnetic conducting part 320, and then the first magnetic conducting part 310 is coaxially placed with the second magnetic conducting part 320, and the first slot body 311 is aligned with the second slot body 321, so that the coil assembly 400 can be set in the annular cavity 301.

[0047] It can be understood that the coil assembly 400 includes the annular support 410 and the conductive coil 420, the annular support 410 is provided with the annular baffle 411 at both ends, the conductive coil 420 is wound on the side wall of the annular support 410, and the conductive coil 420 is located between the two annular baffles 411, the annular support 410 is sleeved on the annular magnetic conductor 300, and the annular support 410 is located in the annular cavity 301.

[0048] The annular support 410 provides a winding basis for the conductive coil 420. The annular support 410 is provided with the annular baffle 411 at both ends, which prevents the conductive coil 420 from being pulled out of the end of the annular support 410.

[0049] Further, the annular baffle 411 can also be provided with a positioning structure for cooperation with the annular magnetic conductor 300.

[0050] For example, it can be understood that the annular baffle 411 is provided with the first protrusion 412 on one side surface close to the bottom of the first slot body 311, the annular baffle 411 is provided with the second protrusion 413 on one side surface close to the bottom of the second slot body 321, the bottom of the first slot body 311 is provided with the first recess 312, the bottom of the second slot body 321 is provided with the second recess 322, the first protrusion 412 is embedded in the first recess 312, and the second protrusion 413 is embedded in the second recess 322.

[0051] The annular baffle 411 in the first slot body 311 is provided with the first protrusion 412 on one side surface close to the bottom of the first slot body 311, and the first protrusion 412 can be embedded in the first recess 312. The annular baffle 411 in the second slot body 321 is provided with the second protrusion 413 on one side surface close to the bottom of the second slot body 321, and the second protrusion 413 can be embedded in the second recess 322. The first protrusion 412 cooperates with the first recess 312, and the second protrusion 413 cooperates with the second recess 322, which can limit the movement of the annular support 410 in the radial direction, and ensure that the conductive coil 420 can be set in the correct position.

[0052] It can be understood that the first magnetic conducting part 310 is provided with the first bolt 330 which penetrates the first magnetic conducting part 310 and is connected to the annular support 410, and the second magnetic conducting part 320 is provided with the second bolt 340 which penetrates the second magnetic conducting part 320 and is connected to the annular support 410.

[0053] The first magnetic conducting part 310 and the second magnetic conducting part 320 are combined together, and one of the ways to fix the first magnetic conducting part 310 and the second magnetic conducting part 320 is to connect them by the first bolt 330 and the second bolt 340. The annular support 410 is a whole, the first magnetic conducting part 310 is connected to the annular support 410 by the first bolt 330, the second magnetic conducting part 320 is connected to the annular support 410 by the second bolt 340, and the first magnetic conducting part 310 and the second magnetic conducting part 320 together with the annular support 410 form a whole structure.

[0054] Preferably, the first bolt 330 penetrates the end surface of the first magnetic conducting part 310 and is connected to the first convex part 412, and the second bolt 340 penetrates the end surface of the second magnetic conducting part 320 and is connected to the second convex part 413. The first convex part 412 and the second convex part 413 can increase the entity on the annular support 410, and more specifically, increase the thickness on the annular baffle 411, so that the first bolt 330 and the second bolt 340 can be screwed deeper.

[0055] It can be understood that the contact assembly 200 includes the fixed contact 210 and the movable contact 220, the fixed contact 210 is provided with two, the two fixed contacts 210 are distributed at intervals, and the movable contact 220 is connected to the magnetic moving element 500, the magnetic moving element 500 can drive the movable contact 220 to move towards the fixed contact 210 and communicate the two fixed contacts 210.

[0056] The fixed contact 210 and the movable contact 220 are both arranged in the cavity of the shell 100 and filled with sulfur hexafluoride gas for protection. It should be understood that the fixed contact 210 is also provided with a connecting part which penetrates the shell 100 to the outside of the shell 100 for connection of external circuits.

[0057] It can be understood that the magnetic moving element 500 includes the push-pull rod 510 and the movable iron core 520, the push-pull rod 510 is inserted into the annular magnetic conductor 300 and can move along the axial direction of the push-pull rod 510, the movable iron core 520 is sleeved on the push-pull rod 510 and fixed with the push-pull rod 510, and the movable iron core 520 is arranged on the inner side of the coil assembly 400, and the movable contact 220 is fixed on the push-pull rod 510.

[0058] When the coil assembly 400 is electrified, the magnetic field generated in the annular magnetic conductor 300 can act on the movable iron core 520 to drive the movable iron core 520 to move. The movable iron core 520 drives the push-pull rod 510 to move, so that the movable contact 220 moves.

[0059] Further, the annular magnetic conductor 300 is provided with a fixed core 530, the fixed core 530 is fixed with the annular magnetic conductor 300, the fixed core 530 is located at the inner side of the coil assembly 400, the push-pull rod 510 passes through the fixed core 530, and the fixed core 530 is located between the moving core 520 and the moving contact 220.

[0060] After the coil assembly 400 passes through the current, the fixed core 530 also generates a magnetic pull on the moving core 520 under the action of the magnetic field, thereby assisting in enhancing the magnetic pull on the moving core 520. The fixed core 530 is between the moving contact 220 and the moving core 520, and after the coil assembly 400 passes through the current, the fixed core 530 attracts the moving core 520 to move towards itself, and the moving core 520 also moves towards the moving contact 220, and the moving contact 220 is pushed to contact and close with the fixed contact 210.

[0061] It can be understood that the push-pull rod 510 is sleeved with a spring, one end of the spring is connected with the push-pull rod 510, the other end of the spring is connected with the annular magnetic conductor 300, and the spring is configured in a compressed state for driving the moving contact 220 to move away from the fixed contact 210.

[0062] The spring is a specific implementation structure of the elastic assembly 600. After the coil assembly 400 passes through the current, the magnetic pull of the magnetic field on the moving core 520 drives the push-pull rod 510 to overcome the compression force of the spring, so that the moving contact 220 can contact the fixed contact 210. After the coil assembly 400 is powered off, the magnetic pull disappears, and the compression force of the spring acting on the push-pull rod 510 resets the push-pull rod 510, and the moving contact 220 is disconnected from the fixed contact 210.

[0063] It can be understood that the cavity of the shell 100 is provided with a first positioning cylinder 110 and a second positioning cylinder 120, the annular magnetic conductor 300 is arranged between the first positioning cylinder 110 and the second positioning cylinder 120, one end of the first positioning cylinder 110 abuts against the inner wall of the shell 100, the other end of the first positioning cylinder 110 abuts against the annular magnetic conductor 300, one end of the second positioning cylinder 120 abuts against the inner wall of the shell 100, and the other end of the second positioning cylinder 120 abuts against the annular magnetic conductor 300.

[0064] The first positioning cylinder 110 and the second positioning cylinder 120 clamp and fix the annular magnetic conductor 300 in the cavity of the shell 100, and the coil assembly 400, the magnetic moving element 500 and the elastic assembly 600 are installed on the annular magnetic conductor 300, and the above structures can be fixed in the cavity of the shell 100 by the first positioning cylinder 110 and the second positioning cylinder 120.

[0065] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range that the person skilled in the art has possesses without departing from the utility model's tenet under the precondition that the knowledge range that the person skilled in the art has possesses.

Claims

1. A high voltage relay, characterized by The utility model relates to a magnetic switch, which comprises the following parts: a shell (100) having a closed cavity; a contact assembly (200) arranged in the shell (100), the contact assembly (200) having a closed state and an open state; a ring-shaped magnetic conductor (300) arranged in the cavity of the shell (100), the ring-shaped magnetic conductor (300) having a ring-shaped cavity (301) in the interior thereof, the ring-shaped cavity (301) being arranged along the circumference of the ring-shaped magnetic conductor (300); a coil assembly (400) sleeved on the ring-shaped magnetic conductor (300), the coil assembly (400) being located in the ring-shaped cavity (301); a magnetic moving element (500) inserted into the ring-shaped magnetic conductor (300), the magnetic moving element (500) being in transmission connection with the contact assembly (200), the magnetic moving element (500) being driven to move by the coil assembly (400) to keep the contact assembly (200) in the closed state or the open state; an elastic assembly (600) connected with the magnetic moving element (500), the elastic assembly (600) being used for driving the magnetic moving element (500) to reset.

2. The high voltage relay according to claim 1, characterized in that The ring-shaped magnetic conductor (300) comprises a first magnetic conducting part (310) and a second magnetic conducting part (320) spliced along the axial direction of the ring-shaped magnetic conductor (300), the splicing surface of the first magnetic conducting part (310) is provided with a ring-shaped first slot body (311), the splicing surface of the second magnetic conducting part (320) is provided with a ring-shaped second slot body (321), and the first slot body (311) and the second slot body (321) are in communication with each other and form the ring-shaped cavity (301).

3. The high voltage relay according to claim 2, characterized in that The coil assembly (400) comprises a ring-shaped support (410) and a conductive coil (420), the two ends of the ring-shaped support (410) are respectively provided with ring-shaped baffles (411), the conductive coil (420) is wound on the side wall of the ring-shaped support (410), the conductive coil (420) is located between the two ring-shaped baffles (411), the ring-shaped support (410) is sleeved on the ring-shaped magnetic conductor (300), and the ring-shaped support (410) is located in the ring-shaped cavity (301).

4. The high voltage relay according to claim 3, characterized in that The ring-shaped baffle (411) is provided with a first convex part (412) on one side surface close to the bottom of the first slot body (311), the ring-shaped baffle (411) is provided with a second convex part (413) on one side surface close to the bottom of the second slot body (321), the bottom of the first slot body (311) is provided with a first recess (312), the bottom of the second slot body (321) is provided with a second recess (322), the first convex part (412) is embedded in the first recess (312), and the second convex part (413) is embedded in the second recess (322).

5. The high voltage relay of claim 3, wherein, The first magnetic conducting part (310) is provided with a first bolt (330) penetrating through the first magnetic conducting part (310) and connected to the annular support (410), and the second magnetic conducting part (320) is provided with a second bolt (340) penetrating through the second magnetic conducting part (320) and connected to the annular support (410).

6. The high voltage relay of claim 1, wherein, The contact assembly (200) comprises fixed contacts (210) and a movable contact (220), the fixed contacts (210) are provided in two, the fixed contacts (210) are spaced apart, the movable contact (220) is connected to the magnetic moving element (500), and the magnetic moving element (500) can drive the movable contact (220) to move towards the fixed contact (210) and connect two fixed contacts (210).

7. The high voltage relay according to claim 6, characterized in that The magnetic moving element (500) comprises a push-pull rod (510) and a movable iron core (520), the push-pull rod (510) is inserted into the annular magnetic conductor (300), the push-pull rod (510) can move along the axial direction of the push-pull rod (510), the movable iron core (520) is sleeved on the push-pull rod (510) and fixed with the push-pull rod (510), and the movable iron core (520) is arranged on the inner side of the coil assembly (400), and the movable contact (220) is fixed on the push-pull rod (510).

8. The high voltage relay according to claim 7, characterized in that The annular magnetic conductor (300) is provided with a fixed iron core (530), the fixed iron core (530) is fixed with the annular magnetic conductor (300), the fixed iron core (530) is located on the inner side of the coil assembly (400), the push-pull rod (510) penetrates through the fixed iron core (530), and the fixed iron core (530) is located between the movable iron core (520) and the movable contact (220).

9. The high voltage relay of claim 7, wherein, The push-pull rod (510) is sleeved with a spring, one end of the spring is connected with the push-pull rod (510), the other end of the spring is connected with the annular magnetic conductor (300), and the spring is configured in a compressed state for driving the movable contact (220) away from the fixed contact (210).

10. The high voltage relay of claim 1, wherein, The cavity of the shell (100) is provided with a first positioning cylinder (110) and a second positioning cylinder (120), the annular magnetic conductor (300) is arranged between the first positioning cylinder (110) and the second positioning cylinder (120), one end of the first positioning cylinder (110) abuts against the inner wall of the shell (100), the other end of the first positioning cylinder (110) abuts against the annular magnetic conductor (300), one end of the second positioning cylinder (120) abuts against the inner wall of the shell (100), and the other end of the second positioning cylinder (120) abuts against the annular magnetic conductor (300).

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