Relay contact structure, relay and vehicle
By setting an arc extinguishing angle in the relay contact structure and increasing the length and surface area of the arc, the problem of difficulty in extinguishing the arc of the power battery relay in the high-voltage circuit is solved, and the arc extinguishing ability and service life are improved.
Patent Information
- Application Number
- CN202420895291.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The relay of the power battery is prone to arc discharge during the opening and closing operation in the high-voltage circuit, resulting in ablation of the contact surface, degradation of insulation performance, and difficulty in extinguishing the arc, especially in a DC current environment.
A relay contact structure is designed, by setting the first and second arc extinguishing angles on the static contact conductor and the dynamic contact conductor, increasing the length and surface area of the arc, increasing the contact area between the arc and the external medium, reducing the density and temperature of the arc, thereby improving the arc extinguishing ability.
By increasing the length and surface area of the arc, reducing the density and temperature of the arc, the arc extinguishing ability of the relay contact structure is significantly improved, the service life is extended, and the generation of arcs is suppressed to a certain extent.
Smart Images
Figure CN222953002U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of new energy vehicles, and in particular to a relay contact structure, a relay and a vehicle. Background Art
[0002] With the popularization of new energy vehicles, research on the safety of power batteries for new energy vehicles has gradually deepened. Due to the complex and unstable internal chemical reactions of power batteries and their sensitivity to the environment, relays need to be set as the last line of defense to disconnect the high-voltage circuit of the power battery in an emergency.
[0003] In the related technology, during the opening and closing action of the relay in the high-voltage circuit, arc discharge will occur when the two contact planes of the moving contact and the static contact are infinitely close. The generated arc can release huge heat in a short period of time, and the contact surface will be burned under the action of heat. The evaporation after the burning will reduce the insulation performance of the moving contact or the static contact, making it difficult to extinguish the arc after it is generated, especially for the high-voltage circuit of the power battery. Since the current in the high-voltage circuit is direct current, it is more difficult to extinguish the arc than alternating current.
[0004] Therefore, effectively extinguishing the arc generated during the operation of the power battery relay is also one of the key issues in improving the safety of new energy vehicles. Utility Model Content
[0005] The present application provides a relay contact structure, a relay and a vehicle, so as to at least solve the problem that the arc extinguishing effect of the relay of the power battery in the related art is poor. The technical solution of the present application is as follows:
[0006] According to a first aspect of the present application, a relay contact structure is provided, comprising a stationary contact conductor and a moving contact conductor, the stationary contact conductor may comprise a stationary contact conductor body and a first arc extinguishing angle arranged on opposite sides of the stationary contact conductor body along a first direction, the moving contact conductor may comprise a moving contact conductor body and a second arc extinguishing angle arranged on opposite sides of the moving contact conductor body along a first direction, the moving contact conductor body and the stationary contact conductor body are arranged opposite to each other along a second direction, the first arc extinguishing angle is arranged at one end of the stationary contact conductor body facing the moving contact conductor, the second arc extinguishing angle is arranged at one end of the moving contact conductor body facing the stationary contact conductor, and the first arc extinguishing angle extends along the first direction toward a side away from the stationary contact conductor body, and the second arc extinguishing angle extends along the first direction toward a side away from the moving contact conductor body.
[0007] According to the above-mentioned technical means, the setting of the first arc extinguishing angle and the second arc extinguishing angle in the present application increases the length and surface area of the arc, which is beneficial to increase the contact area between the arc and the external medium (such as air or an insulator), thereby reducing the density and temperature of the arc, so that the energy of the arc becomes relatively dispersed, thereby improving the arc extinguishing ability of the relay contact structure; on the other hand, the setting of the first arc extinguishing angle and the second arc extinguishing angle changes the direction of the arc, reduces the burning of the arc on the contact surface between the static contact conductor body and the moving contact conductor body, and extends the service life of the relay contact structure; on the other hand, the setting of the first arc extinguishing angle and the second arc extinguishing angle also increases the heat dissipation area of the relay contact structure and reduces the temperature of the relay contact structure, thereby suppressing the generation of the arc to a certain extent.
[0008] In a possible embodiment, the first arc extinguishing angle has a first curved surface and a second curved surface arranged opposite to each other along the second direction, and the second arc extinguishing angle has a third curved surface and a fourth curved surface arranged opposite to each other along the second direction, the curvature of the first curved surface is greater than the curvature of the second curved surface, the curvature of the third curved surface is greater than the curvature of the fourth curved surface, and the first curved surface and the third curved surface are arranged opposite to each other and are both curved in a direction away from each other.
[0009] According to the above technical means, the present application not only promotes the stretching effect of the first arc extinguishing angle and the second arc extinguishing angle on the arc, but also ensures that the first arc extinguishing angle and the second arc extinguishing angle will not interfere with each other when the static contact conductor body and the moving contact conductor body are in contact.
[0010] In one possible embodiment, a first discharge tip is formed at one end of the first arc extinguishing angle away from the static contact conductor body, and a second discharge tip is formed at one end of the second arc extinguishing angle away from the moving contact conductor body. When the moving contact conductor body moves toward the static contact conductor body, tip discharge is generated between the first discharge tip and the second discharge tip.
[0011] According to the above-mentioned technical means, the present application changes the position where the arc is generated in the relay contact structure during the opening and closing process, thereby avoiding the sticking phenomenon between the static contact conductor body and the moving contact conductor body caused by the melting and solidification of the contact surface between the static contact conductor body and the moving contact conductor body under the ablation action of the arc. At the same time, it also avoids the influence of the evaporation generated by the accumulation of ablation on the insulation performance of the relay contact structure, thereby ensuring the arc extinguishing ability of the relay contact structure.
[0012] In a possible implementation manner, the first discharge tip and the second discharge tip are arranged opposite to each other along the second direction, and when the relay contact structure is in a closed state, the distance L between the first discharge tip and the second discharge tip is 0 ≥ 3 L 1 -L 2 -L 3 , where L 1L is the arcing distance of the moving contact conductor body, 2 is the arc distance of the first discharge tip, L 3 is the arc drawing distance of the second discharge tip.
[0013] According to the above technical means, the present application can promote the first discharge tip and the second discharge tip to discharge preferentially.
[0014] In a possible implementation manner, when the relay contact structure is in the disconnected state, the matching clearance between the moving contact conductor body and the stationary contact conductor body is greater than L 1 .
[0015] According to the above technical means, the present application can ensure that in the disconnected state, no arc or short circuit will occur between the moving contact conductor body and the stationary contact conductor body.
[0016] In a possible implementation, the stationary contact conductor body includes a first stationary contact conductor body and a second stationary contact conductor body, the first stationary contact conductor body and the second stationary contact conductor body are spaced apart along a first direction, and the matching gap between the first stationary contact conductor body and the second stationary contact conductor body is greater than L 1 .
[0017] According to the above technical means, the present application can ensure that no arc or circuit phenomenon occurs between the first stationary contact conductor body and the second stationary contact conductor body.
[0018] In a possible implementation manner, a DC voltage or an equivalent AC voltage between the moving contact conductor body and the stationary contact conductor body is not less than 600V.
[0019] According to the above technical means, the present application can promote the first discharge tip and the second discharge tip to discharge preferentially.
[0020] In a possible implementation, the first arc extinguishing angle and the second arc extinguishing angle both have a fifth curved surface and a sixth curved surface arranged opposite to each other along a third direction, the third direction is perpendicular to the first direction and the second direction, and the fifth curved surface and the sixth curved surface are bent toward each other along the third direction.
[0021] According to the above technical means, the present application can form a first discharge tip at the first arc extinguishing angle and a second discharge tip at the second arc extinguishing angle.
[0022] According to a second aspect provided by the present application, a relay is provided, comprising the above-mentioned relay contact structure.
[0023] According to a third aspect provided by the present application, a vehicle is provided, comprising the above-mentioned relay.
[0024] Therefore, the above technical features of the present application have the following beneficial effects:
[0025] (1) The length and surface area of the arc are increased by setting the first arc extinguishing angle and the second arc extinguishing angle, which is beneficial to increase the contact area between the arc and the external medium (such as air or an insulator), thereby reducing the density and temperature of the arc, making the energy of the arc relatively dispersed, thereby improving the arc extinguishing ability of the relay contact structure; on the other hand, the setting of the first arc extinguishing angle and the second arc extinguishing angle changes the direction of the arc, reduces the arc burning on the contact surface between the static contact conductor body and the moving contact conductor body, and prolongs the service life of the relay contact structure; on the other hand, the setting of the first arc extinguishing angle and the second arc extinguishing angle also increases the heat dissipation area of the relay contact structure and reduces the temperature of the relay contact structure, thereby suppressing the generation of the arc to a certain extent.
[0026] (2) The first arc extinguishing angle has a first curved surface and a second curved surface arranged opposite to each other along the second direction, and the second arc extinguishing angle has a third curved surface and a fourth curved surface arranged opposite to each other along the second direction, the curvature of the first curved surface is greater than the curvature of the second curved surface, the curvature of the third curved surface is greater than the curvature of the fourth curved surface, and the first curved surface and the third curved surface are arranged opposite to each other and are curved in a direction away from each other. This not only promotes the stretching effect of the first arc extinguishing angle and the second arc extinguishing angle on the arc, but also ensures that the first arc extinguishing angle and the second arc extinguishing angle will not interfere with each other when the static contact conductor body and the moving contact conductor body are in contact.
[0027] (3) A first discharge tip is formed at one end of the first arc extinguishing angle away from the static contact conductor body, and a second discharge tip is formed at one end of the second arc extinguishing angle away from the moving contact conductor body. When the moving contact conductor body moves toward the static contact conductor body, tip discharge is generated between the first discharge tip and the second discharge tip, thereby changing the position where the arc is generated in the relay contact structure during the opening and closing process, avoiding the sticking phenomenon between the static contact conductor body and the moving contact conductor body caused by the melting and solidification of the contact surface between the static contact conductor body and the moving contact conductor body under the ablation action of the arc, and also avoiding the influence of the evaporation generated by the ablation accumulation on the insulation performance of the relay contact structure, thereby ensuring the arc extinguishing ability of the relay contact structure.
[0028] (4) The first discharge tip and the second discharge tip are arranged opposite to each other along the second direction. When the relay contact structure is in the closed state, the distance L between the first discharge tip and the second discharge tip is 0 ≥ 3 L 1 -L 2 -L 3 , where L 1 L is the arcing distance of the moving contact conductor body, 2 is the arc distance of the first discharge tip, L 3 is the arcing distance of the second discharge tip, thereby promoting preferential discharge between the first discharge tip and the second discharge tip.
[0029] (5) When the relay contact structure is in the disconnected state, the matching clearance between the moving contact conductor body and the static contact conductor body is greater than L 1 , which can ensure that in the disconnected state, no arc or short circuit will occur between the moving contact conductor body and the static contact conductor body.
[0030] (6) The stationary contact conductor body includes a first stationary contact conductor body and a second stationary contact conductor body, the first stationary contact conductor body and the second stationary contact conductor body are arranged at intervals along the first direction, and the matching gap between the first stationary contact conductor body and the second stationary contact conductor body is greater than L 1 , it can be ensured that no arc or circuit phenomenon will occur between the first static contact conductor body and the second static contact conductor body.
[0031] (7) The DC voltage or the equivalent AC voltage between the movable contact conductor body and the stationary contact conductor body is not less than 600 V, thereby promoting the first discharge tip and the second discharge tip to discharge preferentially.
[0032] (8) Both the first arc extinguishing angle and the second arc extinguishing angle have a fifth curved surface and a sixth curved surface arranged relatively along a third direction, the third direction is perpendicular to the first direction and the second direction, the fifth curved surface and the sixth curved surface are bent toward each other along the third direction, and a first discharge tip can be formed on the first arc extinguishing angle and a second discharge tip can be formed on the second arc extinguishing angle.
[0033] It should be noted that the technical effects brought about by any implementation method in the second aspect to the third aspect can refer to the technical effects brought about by the corresponding implementation method in the first aspect, and will not be repeated here.
[0034] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute an improper limitation on the present application.
[0036] Figure 1 One of the structural schematic diagrams of the relay contact structure provided by an embodiment of the present application is shown;
[0037] Figure 2 A second structural schematic diagram of a relay contact structure provided by an embodiment of the present application is shown;
[0038] Figure 3 A schematic diagram of the top view structure of a first arc extinguishing angle provided in an embodiment of the present application is shown.
[0039] Figure Number:
[0040] Relay contact structure 1;
[0041] Stationary contact conductor 10; stationary contact conductor body 11; first stationary contact conductor body 111; second stationary contact conductor body 112; first arc extinguishing angle 12; first curved surface 121; second curved surface 122; first discharge tip 123; fifth curved surface 124; sixth curved surface 125;
[0042] Moving contact conductor 20; moving contact conductor body 21; second arc extinguishing angle 22; third curved surface 221; fourth curved surface 222;
[0043] A second discharge tip 223;
[0044] The first direction F1; the second direction F2; the third direction F3. DETAILED DESCRIPTION
[0045] In order to enable ordinary persons in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.
[0046] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.
[0047] Figure 1 FIG. 1 shows one of the structural diagrams of the relay contact structure provided by an embodiment of the present application, see FIG. Figure 1 According to a first aspect of the present application, a relay contact structure 1 is provided, which may include a stationary contact conductor 10 and a moving contact conductor 20. The stationary contact conductor 10 may include a stationary contact conductor body 11 and a first arc extinguishing angle 12 arranged on opposite sides of the stationary contact conductor body 11 along a first direction F1. The moving contact conductor 20 may include a moving contact conductor body 21 and a second arc extinguishing angle 22 arranged on opposite sides of the moving contact conductor body 21 along the first direction F1. The moving contact conductor body 21 and the stationary contact conductor body 11 are arranged opposite to each other along a second direction F2.
[0048] It should be noted that the first direction F1 is perpendicular to the second direction F2, the first arc extinguishing angle 12 is arranged at one end of the static contact conductor body 11 facing the moving contact conductor 20, the second arc extinguishing angle 22 is arranged at one end of the moving contact conductor body 21 facing the static contact conductor 10, and the first arc extinguishing angle 12 extends along the first direction F1 toward the side away from the static contact conductor body 11, and the second arc extinguishing angle 22 extends along the first direction F1 toward the side away from the moving contact conductor body 21.
[0049] In this way, when the moving contact conductor body 21 moves toward the stationary contact conductor body 11 and when the contact surfaces of the two are infinitely close, the arc generated at the contact surface will move along the first direction F1 toward the first arc extinguishing angle 12 on both sides of the stationary contact conductor body 11 and the second arc extinguishing angle 22 on both sides of the moving contact conductor body 21 under the driving action of electromagnetic force due to the magnetic arc extinguishing principle.
[0050] It can be understood that, on the one hand, the setting of the first arc extinguishing angle 12 and the second arc extinguishing angle 22 increases the length and surface area of the arc, which is beneficial to increase the contact area between the arc and the external medium (such as air or an insulator), thereby reducing the density and temperature of the arc, making the energy of the arc relatively dispersed, thereby improving the arc extinguishing ability of the relay contact structure; on the other hand, the setting of the first arc extinguishing angle 12 and the second arc extinguishing angle 22 changes the direction of the arc, reduces the arc burning on the contact surface of the static contact conductor body 11 and the moving contact conductor body 21, and extends the service life of the relay contact structure; on the other hand, the setting of the first arc extinguishing angle 12 and the second arc extinguishing angle 22 also increases the heat dissipation area of the relay contact structure 1 and reduces the temperature of the relay contact structure 1, thereby suppressing the generation of the arc to a certain extent.
[0051] Continue reading Figure 1 In some embodiments of the present application, the first arc extinguishing angle 12 has a first curved surface 121 and a second curved surface 122 relatively arranged along the second direction F2, and the second arc extinguishing angle 22 has a third curved surface 221 and a fourth curved surface 222 relatively arranged along the second direction F2, the curvature of the first curved surface 121 is greater than the curvature of the second curved surface 122, the curvature of the third curved surface 221 is greater than the curvature of the fourth curved surface 222, the first curved surface 121 and the third curved surface 221 are relatively arranged, and both are curved in a direction away from each other.
[0052] It should be noted that, since charge accumulation is more likely to occur in conductive conductors where the curvature is larger, the curvature of the above-mentioned surfaces will affect the charge accumulation density and the stretching effect of the arc. The curvature of the first surface 121 may be the same as or different from the curvature of the third surface 221, and the curvature of the second surface 122 may be the same as or different from the curvature of the fourth surface 222. When the curvature of the first surface 121 is the same as the curvature of the third surface 221, and the curvature of the second surface 122 is the same as the curvature of the fourth surface 222, the first arc extinguishing angle 12 and the second arc extinguishing angle 22 have the same stretching effect on the arc.
[0053] In this way, the stretching effect of the first arc extinguishing angle 12 and the second arc extinguishing angle 22 on the arc is promoted, and it is ensured that the first arc extinguishing angle 12 and the second arc extinguishing angle 22 will not interfere with each other when the static contact conductor body 11 and the moving contact conductor body 21 are in contact.
[0054] In some embodiments, Figure 1 As shown, a first discharge tip 123 is formed at one end of the first arc extinguishing angle 12 away from the static contact conductor body 11, and a second discharge tip 223 is formed at one end of the second arc extinguishing angle 22 away from the moving contact conductor body 21. When the moving contact conductor body 21 moves toward the static contact conductor body 11, tip discharge is generated between the first discharge tip 123 and the second discharge tip 223.
[0055] It can be understood that since tip discharge is easier to produce than plane discharge, when the first arc extinguishing angle 12 and the second arc extinguishing angle 22 form a discharge tip, the location where the arc is generated is no longer between the static contact conductor body 11 and the moving contact conductor body 21, but between the first discharge tip 123 and the second discharge tip 223.
[0056] In this way, the position where the arc is generated in the relay contact structure 1 during the opening and closing process is changed, thereby avoiding the sticking phenomenon between the static contact conductor body 11 and the moving contact conductor body 21 caused by the melting and solidification of the contact surface between the static contact conductor body 11 and the moving contact conductor body 21 under the ablation action of the arc. At the same time, it also avoids the influence of the evaporation generated by the ablation accumulation on the insulation performance of the relay contact structure 1, thereby ensuring the arc extinguishing ability of the relay contact structure 1.
[0057] In some embodiments, the first discharge tip 123 and the second discharge tip 223 are arranged opposite to each other along the second direction F2. When the relay contact structure 1 is in the closed state, the distance L between the first discharge tip 123 and the second discharge tip 223 is 0 ≥ 3 L 1 -L 2 -L 3 , where L 1 is the arcing distance of the moving contact conductor body 21, L2 is the arcing distance of the first discharge tip 123, L 3 is the arcing distance of the second discharge tip 223 .
[0058] That is to say, the vertical distance between the first discharge tip 123 and the second discharge tip 223 is the sum of the arcing distance of the moving contact conductor body 21, the preferential discharge distance of the first discharge tip 123 and the preferential discharge distance of the second discharge tip 223, so that the preferential discharge of the first discharge tip 123 and the second discharge tip 223 can be promoted.
[0059] In some embodiments, the DC voltage or the equivalent AC voltage between the moving contact conductor body 21 and the stationary contact conductor body 11 is not less than 600V, thereby promoting the first discharge tip 123 and the second discharge tip 223 to discharge preferentially.
[0060] Table 1 shows the influence of DC voltage on arc distance when the test environment is standard atmospheric pressure and the indoor temperature is 22.2℃, where the minimum arc distance is the arc distance from the tip to the plane calculated based on empirical data, and the maximum arc distance is the arc distance from the plane to the plane calculated based on empirical data. It can be seen from Table 1 that when a DC voltage of 600V or more (or an equivalent AC voltage) is applied between the two conductors, the safe distance of the arc that is likely to be generated in the air between the tip conductor and the plane conductor begins to differ. Therefore, in order to ensure that the tip discharges before the plane, it is necessary to ensure that the voltage of the application scenario is not less than 600V. At this time, the tip has a priority discharge distance of 0.03mm compared to the plane, that is, when the vertical distance between the tip and the charged conductor is 0-0.03mm farther than the distance between the plane and the charged conductor, the tip discharges first, and this distance range increases with the increase of the voltage of the application scenario.
[0061] Table 1 Effect of DC voltage on arc distance
[0062] DC voltage(V) Minimum arc distance in air (mm) Maximum arc distance in air (mm) 3000 0.48 3.02 2500 0.38 1.96 2000 0.3 1.04 1500 0.2 0.48 1000 0.13 0.15 900 0.15 0.15 800 0.1 0.1 700 0.08 0.08 600 0.05 0.08 500 0.05 0.05 400 0.03 0.03
[0063] In some embodiments, when the relay contact structure 1 is in the disconnected state, the matching clearance between the moving contact conductor body 21 and the stationary contact conductor body 11 is greater than L 1 Since 3000V DC voltage can handle most high voltage electrical appliances, L 1 It can be 3.02 mm, thereby ensuring that in the disconnected state, no arc or short circuit occurs between the moving contact conductor body 21 and the stationary contact conductor body 11 .
[0064] Figure 2 FIG. 2 shows a second structural diagram of a relay contact structure provided by an embodiment of the present application, referring to FIG. Figure 2In some embodiments, the stationary contact conductor body 11 includes a first stationary contact conductor body 111 and a second stationary contact conductor body 112, the first stationary contact conductor body 111 and the second stationary contact conductor body 112 are arranged at intervals along the first direction F1, and the matching gap between the first stationary contact conductor body 111 and the second stationary contact conductor body 112 is greater than L 1 , L 1 It can be 3.02 mm, thereby ensuring that no arc or circuit phenomenon occurs between the first stationary contact conductor body 111 and the second stationary contact conductor body 112 .
[0065] Figure 3 FIG. 1 shows a schematic diagram of a top view of a first arc extinguishing angle provided by an embodiment of the present application, see FIG. Figure 3 In some embodiments, the first arc extinguishing angle 12 and the second arc extinguishing angle 22 both have a fifth curved surface 124 and a sixth curved surface 125 that are relatively arranged along a third direction F3, and the third direction F3 is perpendicular to the first direction F1 and the second direction F2 in pairs, and the fifth curved surface 124 and the sixth curved surface 125 are bent toward each other along the third direction F3, thereby forming a first discharge tip 123 on the first arc extinguishing angle 12 and a second discharge tip 223 on the second arc extinguishing angle 22.
[0066] According to a second aspect of the present application, a relay is provided, which includes the above-mentioned relay contact structure 1. The advantages possessed by the relay contact structure 1 mentioned above are also possessed by the relay provided in the present application, which will not be repeated here.
[0067] According to a third aspect of the present application, a vehicle is provided, which includes the above-mentioned relay. The advantages possessed by the relay contact structure 1 mentioned above are also possessed by the vehicle provided in the present application, and will not be repeated here.
[0068] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the present application for which protection is claimed, those skilled in the art may understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in a claim. Certain measures are recorded in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.
[0069] Although the present application has been described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely exemplary illustrations of the present application as defined by the appended claims, and are deemed to have covered any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.
[0070] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A relay contact structure, characterized in that: The relay contact structure (1) comprises: A stationary contact conductor (10) comprising a stationary contact conductor body (11) and first arc extinguishing angles (12) arranged on opposite sides of the stationary contact conductor body (11) along a first direction; and a moving contact conductor (20), comprising a moving contact conductor body (21) and second arc extinguishing angles (22) arranged on opposite sides of the moving contact conductor body (21) along the first direction, the moving contact conductor body (21) and the stationary contact conductor body (11) being arranged opposite to each other along the second direction; the first direction is perpendicular to the second direction; The first arc extinguishing angle (12) is arranged at one end of the stationary contact conductor body (11) facing the moving contact conductor (20), and the second arc extinguishing angle (22) is arranged at one end of the moving contact conductor body (21) facing the stationary contact conductor (10), and the first arc extinguishing angle (12) extends along the first direction toward a side away from the stationary contact conductor body (11), and the second arc extinguishing angle (22) extends along the first direction toward a side away from the moving contact conductor body (21).
2. A relay contact structure according to claim 1, characterized in that: The first arc extinguishing angle (12) has a first curved surface (121) and a second curved surface (122) arranged opposite to each other along the second direction, and the second arc extinguishing angle (22) has a third curved surface (221) and a fourth curved surface (222) arranged opposite to each other along the second direction; The curvature of the first curved surface (121) is greater than the curvature of the second curved surface (122), the curvature of the third curved surface (221) is greater than the curvature of the fourth curved surface (222), and the first curved surface (121) and the third curved surface (221) are arranged opposite to each other and are curved in a direction away from each other.
3. A relay contact structure according to claim 2, characterized in that: A first discharge tip (123) is formed at one end of the first arc extinguishing angle (12) away from the static contact conductor body (11), and a second discharge tip (223) is formed at one end of the second arc extinguishing angle (22) away from the movable contact conductor body (21); When the movable contact conductor body (21) moves toward the stationary contact conductor body (11), tip discharge is generated between the first discharge tip (123) and the second discharge tip (223).
4. A relay contact structure according to claim 3, characterized in that: The first discharge tip (123) and the second discharge tip (223) are arranged opposite to each other along the second direction; When the relay contact structure (1) is in a closed state, the distance L0 between the first discharge tip (123) and the second discharge tip (223) is ≥3L1-L2-L3, wherein L1 is the arcing distance of the moving contact conductor body (21), L2 is the arcing distance of the first discharge tip (123), and L3 is the arcing distance of the second discharge tip (223).
5. A relay contact structure according to claim 4, characterized in that: When the relay contact structure is in an off state, the matching clearance between the movable contact conductor body and the stationary contact conductor body is greater than L1.
6. A relay contact structure according to claim 4, characterized in that: The stationary contact conductor body (11) comprises a first stationary contact conductor body (111) and a second stationary contact conductor body (112); The first stationary contact conductor body (111) and the second stationary contact conductor body (112) are arranged at intervals along the first direction, and a matching gap between the first stationary contact conductor body (111) and the second stationary contact conductor body (112) is greater than L1.
7. A relay contact structure according to claim 3, characterized in that: The DC voltage or the equivalent AC voltage between the moving contact conductor body (21) and the stationary contact conductor body (11) is not less than 600V.
8. A relay contact structure according to claim 3, characterized in that: The first arc extinguishing angle (12) and the second arc extinguishing angle (22) both have a fifth curved surface (124) and a sixth curved surface (125) arranged opposite to each other along a third direction; the third direction is perpendicular to the first direction and the second direction in pairs; The fifth curved surface (124) and the sixth curved surface (125) are bent toward each other along the third direction to form the first discharge tip (123) and the second discharge tip (223).
9. A relay, characterized in that: The relay comprises the relay contact structure (1) according to any one of claims 1 to 8.
10. A vehicle, characterized in that: The vehicle includes the relay of claim 9.