Leading-out structural member of relay and relay

Abstract

The utility model relates to a leading-out structural member of a relay and the relay. The lead-out structural member comprises a first connecting section, a second connecting section and a buffer section which are all conductors, the first connecting section is used for connecting a static contact of the relay body, the second connecting section is used for connecting a load circuit, and the buffer section is connected between the first connecting section and the second connecting section; the hardness of the buffer section is smaller than the hardness of the first connecting section and the hardness of the second connecting section, and the second connecting section and the buffer section are of an integrated structure; and / or the thickness of the first connecting section, the thickness of the second connecting section and the thickness of the buffering section are equal. The lead-out structural member can improve the reliability of electrical connection between the static contact and the load circuit, can effectively slow down stress transmission, and reduces the risk of cracking of an insulating cover and a housing of the relay.

Description

Technical Field

[0001] This application relates to the field of relay technology, and in particular to a relay lead-out structure and a relay. Background Technology

[0002] A relay is a very important electrical control device that plays a role in control, protection, and signal conversion in circuits. Some relays include a relay body, a housing, and lead-out components. The relay body is located inside the housing and includes a stationary contact, a moving contact, and an insulating cover inside the housing. The stationary contact is soldered to the insulating cover, with one part inside the insulating cover and the other part extending outside the housing. The moving contact is located inside the insulating cover and can move towards or away from the stationary contact, allowing it to close or separate from the stationary contact. The insulating cover is filled with a protective gas (such as nitrogen or helium) to improve its insulation performance and arc-extinguishing capability. The lead-out components are located outside the housing, with one end connected to the portion of the stationary contact extending out of the housing and the other end connected to the load circuit outside the relay.

[0003] However, in relays of this technology, dimensional tolerances exist at the connection points between the lead-out structure and the stationary contact, as well as at the connection points with the load circuit. This leads to unreliable connections between the lead-out structure and the stationary contact, and between the lead-out structure and the load circuit, affecting the conductivity of the lead-out structure between the stationary contact and the load circuit. In severe cases, it can even cause the electrical connection between the stationary contact and the load circuit to fail. Furthermore, the existence of dimensional tolerances at the connection points between the lead-out structure and the stationary contact, the influence of thermal expansion of the lead-out structure during conduction, and the effects of vibration can all cause stress in the lead-out structure. The stress on the lead-out structure, when transferred to the stationary contact, can easily cause the insulating cover or housing to crack, affecting the normal operation of the relay. Utility Model Content

[0004] Therefore, it is necessary to provide a relay lead-out structure and a relay to address the above-mentioned problems. This lead-out structure can improve the reliability of the electrical connection between the stationary contact and the load circuit, and can effectively reduce stress transmission and reduce the risk of breakage of the relay's insulation cover and housing.

[0005] On one hand, a lead-out structure for a relay is provided, comprising a first connecting section, a second connecting section, and a buffer section, all of which are conductive. The first connecting section is used to connect to the stationary contact of the relay body, the second connecting section is used to connect to the load circuit, and the buffer section is connected between the first connecting section and the second connecting section. The hardness of the buffer section is less than the hardness of both the first connecting section and the second connecting section.

[0006] The first connecting segment, the second connecting segment, and the buffer segment are an integral structure;

[0007] And / or, the thickness of the first connecting segment, the thickness of the second connecting segment, and the thickness of the buffer segment are all equal.

[0008] In one embodiment, the first connecting segment, the second connecting segment, and the buffer segment are all made of copper.

[0009] In one embodiment, the first connecting segment is provided with a first connecting hole for connecting the stationary contact;

[0010] And / or, the second connecting segment is provided with a second connecting hole, which is used to connect the load circuit.

[0011] In one embodiment, when the first connecting segment is provided with a first connecting hole and the second connecting segment is provided with a second connecting hole, at least one of the first connecting hole and the second connecting hole is a waist-shaped hole.

[0012] In one embodiment, the first connecting segment and the second connecting segment are arranged sequentially along a first direction. When the first connecting segment is provided with the first connecting hole and the second connecting segment is provided with the second connecting hole, the orthographic projection of the second connecting hole on the plane where the first connecting segment is located is offset from the first connecting hole in the first direction.

[0013] In one embodiment, a portion of the first connecting segment protrudes from the second connecting segment along a second direction, and the portion of the first connecting segment protruding from the second connecting segment along the second direction is provided with the first connecting hole, wherein the second direction is perpendicular to the first direction.

[0014] In one embodiment, the buffer section includes a main body and a bent portion. The bent portion is a curved structure and is connected between the main body and the first connecting section. The main body is a straight structure, and one end of the main body away from the first connecting section is connected to the second connecting section.

[0015] In one embodiment, the second connecting segment is parallel to the main body, and the first connecting segment is angled to the main body.

[0016] On the other hand, a relay is also provided, including the aforementioned lead-out structure.

[0017] In one embodiment, the system further includes a relay body and a housing, a portion of the relay body being disposed inside the housing, a stationary contact of the relay body extending outside the housing, a lead-out structure being disposed outside the housing, and a first connecting segment of the lead-out structure being connected to the portion of the stationary contact extending outside the housing.

[0018] In one embodiment, the relay has a rated current of 100A or more.

[0019] The aforementioned relay's lead-out structure has a buffer section connected between the first and second connecting sections. Because the buffer section's hardness is less than that of the first and second connecting sections, it possesses a certain degree of flexibility and extensibility. This buffer section can compensate for dimensional tolerances between the connection points of the lead-out structure and the stationary contact, and between the connection points of the load circuit and the stationary contact, improving the reliability of the connection between the lead-out structure and the stationary contact and the load circuit, preventing electrical connection failure between the stationary contact and the load circuit. Furthermore, the buffer section can effectively buffer stress transmission between the first and second connecting sections, thereby reducing the stress transmitted from the lead-out structure to the insulating cover and housing, lowering the risk of breakage of the insulating cover and housing, and preventing damage to the relay.

[0020] Furthermore, by using copper as the lead-out component, the excellent electrical conductivity and heat dissipation properties of copper can be effectively reduced, thereby reducing the overall resistance of the lead-out component and helping to lower the relay's temperature rise.

[0021] Furthermore, the stationary contact is provided with a first threaded hole, and one end of the first fastener passes through the first connecting hole and is tightened in the first threaded hole; the second connecting section is provided with a second connecting hole, which is used to connect the load circuit. The load circuit is provided with a second threaded hole, and one end of the second fastener passes through the second connecting hole and is tightened in the second threaded hole. This type of lead-out structure is convenient for assembly with the relay body and the load circuit.

[0022] Furthermore, when assembling the lead-out structure with the relay body and load circuit, the manufacturing errors and stresses of the lead-out structure can be compensated by the oblong hole, which further improves the electrical connection reliability between the stationary contact and the load circuit, and further reduces the risk of breakage of the insulating cover and housing.

[0023] Furthermore, the second connecting hole is offset from the first connecting hole in the first direction by its orthographic projection on the first connecting segment, thereby reducing the stress transmission from the location near the second connecting hole to the location near the first connecting hole, and thus reducing the stress transmission to the insulating cover and the outer shell.

[0024] Furthermore, the dimension of the first connecting segment in the second direction is larger than that of the second connecting segment in the second direction. This facilitates reserving space on the first connecting segment for opening the first connecting hole, thereby allowing the first connecting hole and the second connecting hole to be staggered in the first direction. It should be noted that the second direction is the direction parallel to any Y-arrow in the figure.

[0025] Furthermore, the bending section of the curved structure can better buffer the transmission of stress, further reducing the stress transmission of the exposed structural components. Attached Figure Description

[0026] Figure 1 This is a perspective view of a relay in some embodiments of this application.

[0027] Figure 2 This is a perspective view of the relay lead-out structure in some embodiments of this application.

[0028] Figure 3 for Figure 2 A top view of the relay lead-out structure in the image.

[0029] Figure 4 for Figure 2 Side view of the relay lead-out structure in the image.

[0030] Figure 5 This is a perspective view of the relay lead-out structure in some other embodiments of this application.

[0031] In the picture:

[0032] 100, Lead-out structural component; 200, Housing; 201, Mounting groove; 300, First fastener; 400, Washer; 500, Positioning protrusion;

[0033] 1. First connecting section; 11. First connecting hole; 12. Positioning groove; 2. Second connecting section; 21. Second connecting hole; 3. Buffer section; 31. Main body; 32. Bending section; 4. Notch. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are 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 this application. However, this application can be implemented 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 this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0036] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that if 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. If 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. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0040] See Figure 1 , Figure 1 A perspective view of a relay according to some embodiments is shown. One embodiment of this application provides a relay including a relay body, a housing 200, and a relay lead-out structure 100 (hereinafter referred to as lead-out structure 100). A portion of the relay body is disposed inside the housing 200, and the lead-out structure 100 is disposed outside the housing 200. The relay body includes an insulating cover, a stationary contact, and a moving contact disposed inside the insulating cover. Exemplarily, the insulating cover is a ceramic cover. The stationary contact is connected to the insulating cover, with a portion disposed inside the insulating cover and another portion extending outside the housing 200. The moving contact is movable toward or away from the stationary contact, allowing the moving contact to close or separate from the stationary contact.

[0041] See Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 2 A perspective view of the lead-out structure in some embodiments is shown. Figure 3 It shows Figure 2 The top view of the leading-out structural component. Figure 4 It shows Figure 2 The image shows a side view of the lead-out structure 100. The lead-out structure 100 includes a first connecting section 1, a second connecting section 2, and a buffer section 3, all of which are conductive. The first connecting section 1 connects the portion of the stationary contact extending outside the housing 200, establishing an electrical connection between the lead-out structure 100 and the stationary contact. The second connecting section 2 connects to a load circuit outside the relay, establishing an electrical connection between the lead-out structure 100 and the load circuit. The buffer section 3 connects between the first connecting section 1 and the second connecting section 2, and the hardness of the buffer section 3 is less than the hardness of the first connecting section 1 and the hardness of the second connecting section 2. In this embodiment, the first connecting section 1, the second connecting section 2, and the buffer section 3 are an integral structure, and the thicknesses of the first connecting section 1, the second connecting section 2, and the buffer section 3 are all the same.

[0042] In this embodiment, the first connecting segment 1, the second connecting segment 2, and the buffer segment 3 are all metallic conductors. The buffer segment 3 is formed through a hardening process to make its hardness less than that of the first connecting segment 1 and the second connecting segment 2. It is understood that the hardness of the metal parts can be reduced through the hardening process, thereby reducing the hardness of the buffer segment 3 and increasing its flexibility.

[0043] In this type of lead-out structure 100, the buffer section 3 is connected between the first connecting section 1 and the second connecting section 2. Since the hardness of the buffer section 3 is less than that of the first connecting section 1 and the second connecting section 2, the buffer section 3 has a certain degree of flexibility and extensibility. Therefore, the buffer section 3 can compensate for the dimensional tolerances between the connection part of the lead-out structure 100 and the stationary contact and the connection part of the load circuit, improve the connection reliability between the lead-out structure 100 and the stationary contact and the load circuit, and prevent the electrical connection failure between the stationary contact and the load circuit. In addition, the buffer section 3 can effectively buffer the stress transmission between the first connecting section 1 and the second connecting section 2, thereby reducing the stress transmitted by the lead-out structure 100 to the insulating cover and the outer shell 200, reducing the risk of the insulating cover and the outer shell 200 breaking, and preventing the relay from being damaged.

[0044] It should be noted that in this application, "the first connecting segment 1, the second connecting segment 2, and the buffer segment 3 are an integral structure" means that the first connecting segment 1, the second connecting segment 2, and the buffer segment 3 are directly integrally formed, rather than being assembled together through connectors or assembly methods. Setting the first connecting segment 1, the second connecting segment 2, and the buffer segment 3 as an integral structure avoids the presence of joints between the first connecting segment 1 and the buffer segment 3, and between the second connecting segment 2 and the buffer segment 3, which is beneficial for improving the electrical performance between the first connecting segment 1 and the buffer segment 3, and between the second connecting segment 2 and the buffer segment 3.

[0045] Since the first connecting section 1, the second connecting section 2, and the buffer section 3 are an integral structure, there is no need to weld adjacent sections or use connectors to assemble and fix them during manufacturing. This avoids joints between adjacent sections, reducing the risk of poor contact or failure due to joints, and thus improving the overall reliability of the lead-out structure 100. Furthermore, the uniform thickness of the first connecting section 1, the second connecting section 2, and the buffer section 3 ensures uniform thickness of all sections in the lead-out structure 100, reducing stress concentration and allowing for even current distribution across these sections. This prevents localized overheating or current concentration, improving the electrical performance and reliability of the lead-out structure 100.

[0046] It should be noted that in practical applications, at least two of the first connecting segment 1, the second connecting segment 2, and the buffer segment 3 can be set as separate structures as needed, that is, two adjacent plate segments can be connected and fixed together by means of connectors (such as screws) or assembly.

[0047] It should be noted that in practical applications, at least one of the thicknesses of the first connecting segment 1, the second connecting segment 2, and the buffer segment 3 can be flexibly adjusted as needed, so that one of the thicknesses of the first connecting segment 1, the rear end of the second connecting segment 2, and the buffer segment 3 is not equal to the remaining two, or all three are not equal to each other.

[0048] In actual implementation, the first connecting segment 1 can be connected to the stationary contact via the first fastener 300, or the first connecting segment 1 can be welded to the stationary contact; the second connecting segment 2 can be connected to the load circuit via the second fastener, or the second connecting segment 2 can be welded to the load circuit.

[0049] In some embodiments, the first connecting segment 1, the second connecting segment 2, and the buffer segment 3 are all made of copper. Making the lead-out structure 100 a copper component is beneficial because copper has good electrical conductivity and excellent heat dissipation properties, effectively reducing the overall resistance of the lead-out structure 100 and thus helping to reduce the temperature rise of the relay. It should be noted that the term "copper component" here is a broad concept; it can be pure copper or a copper-based alloy.

[0050] It should be noted that in other examples, the first connecting segment 1, the second connecting segment 2, and the buffer segment 3 can also be made of other conductive metals, such as silver or aluminum. It's important to note that "silver" here is a broad term, encompassing both pure silver and silver-based alloys; similarly, "aluminum" is also a broad term, referring to both pure aluminum and aluminum-based alloys, such as aluminum-copper alloys. In practical implementation, the materials of the first connecting segment 1, the second connecting segment 2, and the buffer segment 3 can be flexibly selected as needed; no specific restrictions are placed on the material of any of these segments.

[0051] In some embodiments, the first connecting segment 1 is connected to the stationary contact via a first fastener 300, and the second connecting segment 2 is connected to the load circuit via a second fastener (not shown in the figure). The first connecting segment 1 is provided with a first connecting hole 11 for connecting the stationary contact. The stationary contact is provided with a first threaded hole, and one end of the first fastener 300 passes through the first connecting hole 11 and is tightened in the first threaded hole. The second connecting segment 2 is provided with a second connecting hole 21 for connecting the load circuit. The load circuit is provided with a second threaded hole, and one end of the second fastener passes through the second connecting hole 21 and is tightened in the second threaded hole. This type of lead-out structure 100 facilitates assembly with the relay body and the load circuit.

[0052] See Figure 1 The relay has two lead-out structural members 100, and the relay body has two stationary contacts, each corresponding to one of the lead-out structural members 100. The relay includes two washers 400, each corresponding to one of the lead-out structural members 100. Each lead-out structural member 100 has a corresponding washer 400 on its first connecting section 1. One end of a first fastener 300 passes through the corresponding washer 400 and the first connecting hole 11 and is tightened in the first threaded hole.

[0053] When the first connecting segment 1 is provided with a first connecting hole 11 and the second connecting segment 2 is provided with a second connecting hole 21, at least one of the first connecting hole 11 and the second connecting hole 21 is an oblong hole. This design can compensate for the manufacturing error and stress of the leading structure 100 by using the oblong hole when assembling the lead-out structure 100 with the relay body and the load circuit, further improving the electrical connection reliability between the static contact and the load circuit, and further reducing the risk of breakage of the insulating cover and the outer shell 200.

[0054] For example, refer to Figure 1 and Figure 2 The second connecting hole 21 is an oblong hole. In other examples, the first connecting hole 11 can also be an oblong hole, or both the first connecting hole 11 and the second connecting hole 21 can be oblong holes.

[0055] In some embodiments, see Figure 1 and Figure 2The first connecting segment 1 and the second connecting segment 2 are sequentially arranged along a first direction. When the first connecting segment 1 is provided with a first connecting hole 11 and the second connecting segment 2 is provided with a second connecting hole 21, the orthographic projection of the second connecting hole 21 on the plane of the first connecting segment 1 is offset from the first connecting hole 11 in the first direction. The first direction is parallel to any X-arrow in the figure. It should be noted that in this application, "the orthographic projection of the second connecting hole 21 on the plane of the first connecting segment 1 is offset from the first connecting hole 11 in the first direction" means that the orthographic projection of the second connecting hole 21 on the plane of the first connecting segment 1 is not completely aligned with the first connecting hole in the first direction, but is offset or staggered. Setting the orthographic projection of the second connecting hole 21 on the first connecting segment 1 to the first connecting hole 11 in the first direction reduces the stress transmission from the location near the second connecting hole 21 to the location near the first connecting hole 11, thereby reducing the stress transmission to the insulating cover and the outer shell 200.

[0056] Continue reading Figure 1 and Figure 2 A portion of the first connecting segment 1 protrudes from the second connecting segment 2 along a second direction. A first connecting hole 11 is provided on the portion of the first connecting segment 1 protruding from the second connecting segment 2 along the second direction. The second direction is perpendicular to the first direction, making the dimension of the first connecting segment 1 in the second direction larger than the dimension of the second connecting segment 2 in the second direction. This facilitates reserving space on the first connecting segment 1 for the first connecting hole 11, thereby allowing the first connecting hole 11 and the second connecting hole 21 to be staggered in the first direction. It should be noted that the second direction is parallel to any of the Y-arrows in the figure.

[0057] See Figure 2 and Figure 5 When a portion of the first connecting segment 1 protrudes beyond the second connecting segment 2 along the second direction, one end of the first connecting segment 1 protrudes beyond the buffer segment 3 along the second direction. A notch 4 is formed at the connection between the first connecting segment 1 and the buffer segment 3. The orthographic projection of the geometric center of the first connecting hole 11 onto the target plane is the first projection, and the orthographic projection of the notch 4 onto the target plane is the second projection. The first projection falls within the second projection. The target plane is perpendicular to the first connecting segment 1. In this embodiment, the target plane is perpendicular to the first direction. By setting the notch 4, the connection position between the buffer segment 3 and the first connecting segment 1 does not cover the geometric center of the first connecting hole 11 in the first direction, which helps to reduce the force on the first connecting segment 1 and, to a certain extent, reduces the possibility that the first connecting segment 1 may be affected by prying due to the first connecting segment 1, thus reducing the risk of the outer casing 200 breaking.

[0058] In some embodiments, see Figure 1 and Figure 2The buffer section 3 includes a main body 31 and a bent section 32. The bent section 32 is a curved structure and is connected between the main body 31 and the first connecting section 1. The main body is a straight structure. The end of the main body 31 away from the first connecting section 1 is connected to the second connecting section 2. The bent section 32 with its curved structure can better buffer the transmission of stress and further reduce the stress transmission of the lead-out structural member 100.

[0059] In some practical applications, the connection points between the stationary contact and the lead-out structure 100, and the connection points between the load circuit and the lead-out structure 100, are not on the same horizontal plane. To adapt the lead-out structure to the positions of the stationary contact and the load circuit, the second connecting segment 2 is parallel to the main body 31, and the first connecting segment 1 is set at an angle to the main body 31. In this example, the first connecting segment 1 is set at 90° to the main body 31, making the lead-out structure 100 as a whole "L" shape. Of course, in other examples, the angle between the first connecting segment 1 and the main body 31 can be flexibly adjusted according to the actual situation, such as 10°, 20°, 30°, 40°, 50°, 60°, 70°, or 80°.

[0060] With the second connecting segment 2 parallel to the main body 31 and the first connecting segment 1 set at 90° to the main body 31 (i.e., the first connecting segment 1 is perpendicular to the main body 31), the first connecting segment 1 and the main body 31 are distributed sequentially in a third direction, which is the direction parallel to any Z arrow in the figure.

[0061] In some embodiments, see Figure 1 A mounting groove 201 is provided on the outer side of the housing 200 corresponding to the stationary contact. At least a portion of the first connecting section 1 is disposed within the mounting groove 201. A positioning protrusion 500 is provided on the inner wall of the mounting groove 201, protruding towards the interior of the mounting groove 201. A positioning groove 12 is provided on one side of the first connecting section 1, and the positioning protrusion 500 is located within the positioning groove 12. When assembling the lead-out structure 100 with the relay body, the positioning protrusion 500 can be used to prevent incorrect installation of the lead-out structure 100. Furthermore, the cooperation between the positioning protrusion 500 and the positioning groove 12 improves the stability of the lead-out structure 100 within the mounting groove 201, reduces the risk of the lead-out structure 100 rotating relative to the housing 200, and reduces the risk of connection failure between the lead-out structure 100 and the stationary contact and load circuit due to rotation within the mounting groove 201.

[0062] In this example, the outer side of the housing 200 is provided with two mounting slots 201, which are spaced apart. The lead-out structural member 100 corresponds to the mounting slot 201 one by one, and the lead-out structural member 100 is installed in the corresponding mounting slot 201.

[0063] In the relay of this application, a buffer section 3 is provided in the lead-out structure 100 and connected between the first connecting section 1 and the second connecting section 2. Since the hardness of the buffer section 3 is less than that of the first connecting section 1 and the second connecting section 2, the stress transmission between the first connecting section 1 and the second connecting section 2 can be buffered by the buffer section 3, thereby reducing the stress transmitted from the lead-out structure 100 to the insulating cover and the outer shell 200, preventing the insulating cover and the outer shell 200 from cracking, and reducing the risk of relay damage.

[0064] In one embodiment, the relay has a rated current of 100A or more. This type of relay can carry and switch high current loads and is suitable for applications that require high current control, such as electric vehicle charging, energy storage systems, and motor drives.

[0065] Of course, in practical applications, the rated current of the relay can be adjusted as needed, and no specific limit is placed on the rated current of the relay here.

[0066] 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.

[0067] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An extraction structure of a relay characterized by comprising: The lead-out structure comprises a first connecting segment, a second connecting segment and a buffer segment, the first connecting segment is used for connecting a static contact of a relay body, the second connecting segment is used for connecting a load circuit, the buffer segment is connected between the first connecting segment and the second connecting segment, the hardness of the buffer segment is less than the hardness of the first connecting segment and the hardness of the second connecting segment, wherein, The first connecting segment, the second connecting segment and the buffer segment are in an integrated structure. The thickness of the first connecting segment, the thickness of the second connecting segment and the thickness of the buffer segment are equal.

2. The lead structure of a relay according to claim 1, wherein The first connecting segment, the second connecting segment and the buffer segment are copper pieces.

3. The lead structure of a relay according to claim 1, wherein The first connecting segment is provided with a first connecting hole used for connecting the static contact. The second connecting segment is provided with a second connecting hole used for connecting the load circuit.

4. The lead structure of a relay according to claim 3, wherein When the first connecting segment is provided with the first connecting hole and the second connecting segment is provided with the second connecting hole, at least one of the first connecting hole and the second connecting hole is a waist-shaped hole.

5. The lead structure of a relay according to claim 3, wherein The first connecting segment and the second connecting segment are sequentially arranged along a first direction, when the first connecting segment is provided with the first connecting hole and the second connecting segment is provided with the second connecting hole, the second connecting hole and the first connecting hole are distributed in a staggered manner in the first direction.

6. The lead structure of a relay according to claim 5, wherein Part of the first connecting segment protrudes from the second connecting segment along a second direction, the first connecting hole is arranged on the part of the first connecting segment protruding from the second connecting segment along the second direction, and the second direction is perpendicular to the first direction.

7. The lead structure of a relay according to any one of claims 1 to 6, wherein The buffer segment comprises a main body part and a bending part, the bending part is a curved structure, the bending part is connected between the main body part and the first connecting segment, the main body part is a flat structure, and one end of the main body part away from the first connecting segment is connected with the second connecting segment.

8. The lead structure of a relay according to claim 7, wherein The second connecting segment is parallel to the main body part, and the first connecting segment is arranged at an angle with the main body part.

9. A relay characterized by comprising: The lead-out structure comprises the lead-out structure of any one of claims 1 to 8.

10. The relay of claim 9, wherein The relay body is partially arranged in the inside of the shell, the static contact of the relay body protrudes to the outside of the shell, the lead-out structure is arranged outside the shell, and the first connecting segment of the lead-out structure is connected with the part of the static contact protruding to the outside of the shell.

11. A relay according to claim 9 or 10, characterised in that The rated current of the relay is 100 A or more.

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