relay

Abstract

The application discloses a relay, which comprises a contact cavity, a connected component and a ring-shaped part. The ring-shaped part comprises a first connecting ring and a second connecting ring. The first connecting ring comprises an inner ring part and an outer ring part. The outer ring part surrounds the outer periphery of the inner ring part. The inner ring part protrudes from the inner ring surface of the second connecting ring. The outer ring part protrudes from the outer ring surface of the second connecting ring. One of the connected component and the contact cavity is connected with the inner ring part and the outer ring part. The second connecting ring is connected with the first connecting ring at one axial end. The other of the connected component and the contact cavity is connected with the second connecting ring at the other axial end.

Description

Technical Field

[0001] This application relates to the field of electrical control device technology, and more specifically, to a relay. Background Technology

[0002] A relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit), and is commonly used in automatic control circuits. Essentially, a relay is an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching in circuits.

[0003] In the field of relays, the connected components are typically mounted on the contact cavity to ensure the stability of relay operation. However, as electronic devices move towards miniaturization and high-density integration, the mounting structure of the connected components in related technologies results in an excessively large overall relay size, making it difficult to meet the installation requirements of modern compact devices. Utility Model Content

[0004] This application provides a relay to improve the problem of large relay size.

[0005] The relay of this application embodiment includes a contact cavity, a connected component, and an annular component. The annular component includes a first connecting ring and a second connecting ring. The first connecting ring includes an inner ring portion and an outer ring portion. The outer ring portion surrounds the outer periphery of the inner ring portion. The inner ring portion extends out of the inner ring surface of the second connecting ring, and the outer ring portion extends out of the outer ring surface of the second connecting ring. One of the connected component and the contact cavity is connected to the inner ring portion and the outer ring portion. One axial end of the second connecting ring is connected to the first connecting ring, and the other axial end of the connected component and the contact cavity is connected to the other axial end of the second connecting ring.

[0006] According to some embodiments of this application, the connected component is welded to the inner ring portion and the outer ring portion; and / or, the second connecting ring is welded to the contact cavity at the other end axially.

[0007] According to some embodiments of this application, the first connecting ring and the second connecting ring are perpendicularly connected.

[0008] According to some embodiments of this application, the thickness of the first connecting ring is greater than or equal to the wall thickness of the second connecting ring.

[0009] According to some embodiments of this application, the ring width of the inner ring portion is equal to the ring width of the outer ring portion.

[0010] According to some embodiments of this application, the second connecting ring is axially connected at one end to the outer or inner wall surface of the contact cavity.

[0011] According to some embodiments of this application, the contact cavity has a mounting hole, at least a portion of the connected component is located within the mounting hole, and the second connecting ring is axially connected at its other end to the edge of the mounting hole opening;

[0012] The orthographic projection of the mounting hole on a target plane is the first projection, and the orthographic projection of the second connecting ring on the target plane is the second projection. The first projection is located within the inner circle of the second projection, and the target plane is perpendicular to the axis of the second connecting ring.

[0013] According to some embodiments of this application, the connected component is connected to the inner ring portion and the outer ring portion, the contact cavity is axially connected to the other end of the second connecting ring, and the connected component includes an exciter.

[0014] According to some embodiments of this application, the connected component further includes an adapter, including a sleeve and a first flange, the exciter being fixed inside the sleeve, the first flange protruding from the outer peripheral side of the sleeve, and the first flange being connected to the inner ring portion and the outer ring portion.

[0015] According to some embodiments of this application, the contact cavity is further provided with two lead-out members, and the connected component is located between the two lead-out members.

[0016] According to some embodiments of this application, the contact cavity includes a ceramic cover, and the second connecting ring is axially connected to the ceramic cover at the other end.

[0017] According to some embodiments of this application, the first connecting ring further includes a middle ring portion connected between the inner ring portion and the outer ring portion;

[0018] One of the inner ring portion, the middle ring portion, and the outer ring portion forms a first annular surface, and the connected component is connected to the first annular surface; the other of the inner ring portion, the middle ring portion, and the outer ring portion forms a second annular surface, and the second connecting ring is connected to the second annular surface; the first annular surface and the second annular surface are arranged opposite to each other along the thickness direction of the first connecting ring.

[0019] According to some embodiments of this application, the contact cavity is provided with an annular boss, and the surface of the annular boss facing the annular component is a third annular surface, and the second connecting ring is axially connected to the other end of the radial middle region of the third annular surface.

[0020] According to some embodiments of this application, the cross-sectional shape of the annular component is T-shaped.

[0021] According to some embodiments of this application, the connected component includes a pressure relief valve.

[0022] An embodiment of the above application has at least the following advantages or beneficial effects:

[0023] In the relay of this application embodiment, the inner ring portion of the first connecting ring extends out of the inner ring surface of the second connecting ring, and the outer ring portion of the first connecting ring extends out of the outer ring surface of the second connecting ring. That is, the first connecting ring is generally recessed. When the ring width of the first connecting ring remains unchanged and the connection position between the second connecting ring and the contact cavity remains unchanged, the first connecting ring will not extend excessively out of the outer and inner ring surfaces of the second connecting ring, thereby not occupying excessive space around the annular component, which is conducive to realizing the miniaturization design of the relay.

[0024] Furthermore, designing the cross-sectional shape of the annular component as T-shaped can improve the stability of the annular component, thereby enhancing the robustness of the connection between the connected components, the annular component, and the contact cavity.

[0025] Furthermore, when the first annular surface of the first connecting ring of the annular component is welded to the connected component, and the second connecting ring of the annular component is welded to the contact cavity, the larger area of ​​the first annular surface of the first connecting ring results in a larger solder pad between the first connecting ring and the connected component, reducing the welding precision requirements and improving production efficiency. Conversely, the smaller solder pad between the second connecting ring and the contact cavity leads to lower welding stress when the second connecting ring is connected to the ceramic cover, ensuring welding reliability and thus guaranteeing the strong connection between the annular component and the ceramic cover, as well as the sealing performance of the contact cavity.

[0026] Furthermore, when the connected component is located between the two leads, since the first connecting ring does not extend excessively beyond the outer ring surface of the second connecting ring, the annular component will not occupy too much space between the two leads. Therefore, the distance between the two leads can be appropriately shortened, improving the space utilization rate outside the contact cavity.

[0027] Furthermore, by designing the thickness of the first connecting ring to be relatively large, when the first connecting ring is welded to the connected component, it is beneficial to increase the laser welding penetration depth, avoid defects such as incomplete welding and incomplete penetration, and improve the reliability of the connection. Attached Figure Description

[0028] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0029] Figure 1 This is a top view of a relay according to an embodiment of this application.

[0030] Figure 2 It is along Figure 1 A sectional view after being cut along the AA section line.

[0031] Figure 3 yes Figure 2 A simplified schematic diagram of the connected components assembled on top of the ceramic cover via an annular component, wherein the annular component is located outside the contact cavity.

[0032] Figure 4 yes Figure 2 A simplified schematic diagram of the connected components assembled on top of the ceramic cover via an annular component, wherein the annular component is located within the contact cavity.

[0033] Figure 5 This is a simplified schematic diagram of the exciter being assembled on top of a ceramic cover via a ring-shaped component, with a portion of the exciter's housing located within a mounting hole.

[0034] Figure 6 This is a simplified schematic diagram of the exciter assembled on top of the ceramic cover via a ring-shaped component, wherein the exciter's housing is not located within the mounting hole.

[0035] Figure 7 This is a three-dimensional schematic diagram of the ring-shaped component.

[0036] Figure 8 It is along Figure 7 A sectional view after cutting along the BB section line.

[0037] The reference numerals in the attached figures are explained as follows:

[0038] 100. Contact cavity; 101. Contact chamber; 103. Drive chamber; 110. Yoke plate; 111. Through hole; 120. Insulating cover; 121. Ceramic cover; 1211. Annular boss; 1212. Third annular surface; 122. Frame piece; 123. Mounting hole; 130. Metal cover;

[0039] 200. Contact assembly; 210. Static contact; 211. Lead-out component; 220. Movable component; 221. Moving contact; 222. Push rod component;

[0040] 300, Connected component; 310, Actuator; 311, Housing; 312, Second flange; 340, Adapter; 341, Sleeve; 342, First flange;

[0041] 500. Magnetic circuit section;

[0042] 700, Annular component; 710, First connecting ring; 711, First annular surface; 712, Second annular surface; 713, Inner ring portion; 714, Outer ring portion; 715, Middle ring portion; 720, Second connecting ring. Detailed Implementation

[0043] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0044] It is understood that the terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0045] For ease of explanation, the terms "X-axis direction," "Y-axis direction," and "Z-axis direction" are used in the specific embodiments of this application. These terms simply refer to a feature having one of these directions being perpendicular to a feature having the other direction; they do not require implementation according to the "X-axis direction," "Y-axis direction," and "Z-axis direction" described in the embodiments. In the embodiments, the X-axis direction, Y-axis direction, and Z-axis direction are mutually perpendicular. Specifically, the X-axis direction can be divided into left and right (the direction indicated by the arrow in the X-axis direction is left, and the opposite direction is right); the Y-axis direction can be divided into up and down (the direction indicated by the arrow in the Y-axis direction is up, and the opposite direction is down); and the Z-axis direction can be divided into front and back (the direction indicated by the arrow in the Z-axis direction is front, and the opposite direction is back).

[0046] like Figure 1 and Figure 2 As shown, the relay of this embodiment includes a contact cavity 100, a contact assembly 200, and a magnetic circuit portion 500. The contact cavity 100 has a contact chamber 101, and the contact assembly 200 includes a stationary contact 210 and a movable member 220. The stationary contact 210 is fixed to the contact cavity 100. A portion of the movable member 220 is movably located within the contact chamber 101 along the Y-axis direction. The magnetic circuit portion 500 is configured to drive the movable member 220 to move in response to an input signal, so that the movable member 220 can contact or separate from the stationary contact 210. When the movable member 220 contacts the stationary contact 210, at least one conductive path can be formed.

[0047] The term "contact" can be direct or indirect, as long as current can flow between the stationary contact 210 and the movable member 220.

[0048] The static contact 210 may include at least two leads 211, each lead 211 being mounted on the contact cavity 100, with a portion of each lead 211 extending into the contact cavity 101 and the other portion of the lead 211 extending out of the outer surface of the contact cavity 100.

[0049] The movable member 220 may include at least one movable contact 221 and a push rod member 222. The movable contact 221 is mounted on the push rod member 222, and the push rod member 222 can drive the movable contact 221 to move along the Y-axis. The two ends of a movable contact 221 along the X-axis can respectively contact or separate from the two corresponding leads 211.

[0050] In one embodiment, the stationary contact 210 includes two leads 211, which are spaced apart along the X-axis. The movable member 220 includes a movable contact 221 that can simultaneously contact both leads 211. When the movable contact 221 contacts both leads 211, current can flow in from one lead 211, pass through the movable contact 221, and then flow out from the other lead 211, thus forming a conductive path between the two leads 211 and the movable contact 221.

[0051] Of course, in other embodiments, the static contact 210 may include four leads 211, and the movable member 220 may include two movable contacts 221, one of which can contact one pair of leads 211 to form a conductive path, and the other movable contact 221 can contact another pair of leads 211 to form another conductive path.

[0052] In addition, the static contact 210 may include six or more lead-out members 211, and the movable member 220 may include three or more moving contact members 221, which will not be listed here.

[0053] Of course, in other embodiments, the static contact 210 may also include three or five leads 211.

[0054] like Figure 2As shown, the contact cavity 100 includes a yoke plate 110 and an insulating cover 120. The insulating cover 120 covers one side surface of the yoke plate 110 in the thickness direction, and a stationary contact member 210 is mounted on the insulating cover 120. The insulating cover 120 and the yoke plate 110 form a contact cavity 101, and a movable contact member 221 is located inside the contact cavity 101. The yoke plate 110 has a through hole 111 that penetrates the yoke plate 110 along the Y-axis and communicates with the contact cavity 101. A push rod member 222 is movably inserted into the through hole 111.

[0055] The relay also includes a metal cover 130, which covers the side of the yoke plate 110 facing away from the insulating cover 120. The metal cover 130 and the yoke plate 110 form a drive chamber 103, which is connected to the contact chamber 101 through a through hole 111.

[0056] The insulating cover 120 includes a ceramic cover 121 and a frame 122. The ceramic cover 121 is made of ceramic, and the frame 122 is a ring structure made of metal. The ceramic cover 121 is connected to the yoke plate 110 through the frame 122. A static contact 210 is installed on the top of the ceramic cover 121.

[0057] Please continue reading. Figure 2 and Figure 3 The relay in this embodiment further includes a connected assembly 300 and an annular component 700. The annular component 700 includes a first connecting ring 710 and a second connecting ring 720. The first connecting ring 710 includes an inner ring portion 713 and an outer ring portion 714. The outer ring portion 714 surrounds the outer periphery of the inner ring portion 713. The inner ring portion 713 extends out of the inner ring surface 721 of the second connecting ring 720, and the outer ring portion 714 extends out of the outer ring surface 722 of the second connecting ring 720. One of the connected assembly 300 and the contact cavity 100 is connected to the inner ring portion 713 and the outer ring portion 714. One axial end of the second connecting ring 720 is connected to the first connecting ring 710, and the other of the connected assembly 300 and the contact cavity 100 is connected to the other axial end of the second connecting ring 720.

[0058] In the relay of this application embodiment, the inner ring portion 713 of the first connecting ring 710 extends out of the inner ring surface 721 of the second connecting ring 720, and the outer ring portion 714 of the first connecting ring 710 extends out of the outer ring surface 722 of the second connecting ring 720. That is, the first connecting ring 710 is generally recessed. When the ring width of the first connecting ring 710 remains unchanged and the connection position between the second connecting ring 720 and the contact cavity 100 remains unchanged, the first connecting ring 710 will not extend excessively out of the outer ring surface 722 and the inner ring surface 721 of the second connecting ring 720, thereby not occupying excessive space around the annular component 700, which is conducive to realizing the miniaturization design of the relay.

[0059] It should be noted that the term "ring" in this application is not limited to circular rings. In addition to circular rings, the rings in this application have various shapes, such as rectangular rings, elliptical rings, etc. As long as they meet the requirement of being "closed rings", they fall within the scope of "rings" in this application.

[0060] The first connecting ring 710 also includes a middle ring portion 715, which is connected between the inner ring portion 713 and the outer ring portion 714. That is, the middle ring portion 715 surrounds the outer periphery of the inner ring portion 713, and the outer ring portion 714 surrounds the outer periphery of the middle ring portion 715.

[0061] One of the inner ring portion 713, the middle ring portion 715, and the outer ring portion 714, on the same side, constitutes a first annular surface 711. The other surface on the same side of the inner ring portion 713, the middle ring portion 715, and the outer ring portion 714 constitutes a second annular surface 712. The first annular surface 711 and the second annular surface 712 are arranged opposite to each other in the thickness direction of the first connecting ring 710. The first annular surface 711 is connected to the connected component 300, and the second annular surface 712 is connected to the second connecting ring 720.

[0062] In one exemplary embodiment, the upper surface of the inner ring portion 713, the upper surface of the middle ring portion 715, and the upper surface of the outer ring portion 714 are flush to form a first annular surface 711; the lower surface of the inner ring portion 713, the lower surface of the middle ring portion 715, and the lower surface of the outer ring portion 714 are flush to form a second annular surface 712.

[0063] In one embodiment, the inner ring portion 713, the middle ring portion 715, and the outer ring portion 714 constitute a sheet-like annular structure, wherein one side surface of the sheet-like annular structure in the thickness direction is a first annular surface 711, and the other side surface is a second annular surface 712.

[0064] In one embodiment, both the connected component 300 and the annular component 700 are located between the two leads 211. In this embodiment, since the first connecting ring 710 does not extend excessively beyond the outer surface of the second connecting ring 720, the annular component 700 does not occupy excessive space between the two leads 211. Therefore, the distance between the two leads 211 can be appropriately shortened, improving the space utilization rate outside the contact cavity 100.

[0065] In one embodiment, the annular component 700 has a T-shaped cross-section. The first connecting ring 710 and the second connecting ring 720 are perpendicularly connected, and the width of the inner ring portion 713 is equal to the width of the outer ring portion 714.

[0066] In this embodiment of the application, the cross-sectional shape of the annular component 700 is designed as T-shaped, which can improve the stability of the annular component 700 and thus improve the firmness of the connection between the connected component 300, the annular component 700 and the contact cavity 100.

[0067] Of course, in other embodiments, the first connecting ring 710 and the second connecting ring 720 may not be connected perpendicularly; the ring width of the inner ring portion 713 may not be equal to the ring width of the outer ring portion 714. For example, the ring width of the inner ring portion 713 may be greater than the ring width of the outer ring portion 714; or, the ring width of the inner ring portion 713 may be less than the ring width of the outer ring portion 714.

[0068] In one embodiment, the annular component 700 is circular in shape.

[0069] In one embodiment, the connected component 300 is welded to the first annular surface 711; and / or, the other axial end of the second connecting ring 720 is welded to the top of the ceramic cover 121.

[0070] In this embodiment, when the first annular surface 711 of the first connecting ring 710 of the annular component 700 is welded to the connected component 300, and the second connecting ring 720 of the annular component 700 is welded to the contact cavity 100, the area of ​​the first annular surface 711 of the first connecting ring 710 is large, resulting in a larger solder pad between the first connecting ring 710 and the connected component 300. This reduces the welding precision requirements and improves production efficiency. Conversely, the solder pad between the second connecting ring 720 and the contact cavity 100 is smaller. When the second connecting ring 720 is connected to the ceramic cover 121, the welding stress between the second connecting ring 720 and the ceramic cover 121 is lower, ensuring welding reliability and thus guaranteeing the strong connection between the annular component 700 and the ceramic cover 121 and the sealing performance of the contact cavity 100.

[0071] In one embodiment, the other axial end of the second connecting ring 720 is connected to the edge of the mounting hole 123. The orthographic projection of the mounting hole 123 on a target plane is the first projection, and the orthographic projection of the second connecting ring 720 on the target plane is the second projection. The first projection is located within the inner circle of the second projection, and the target plane is perpendicular to the axial direction (Y-axis direction) of the second connecting ring 720.

[0072] Please continue reading. Figure 3 The ceramic cover 121 is provided with an annular boss 1211. The surface of the annular boss 1211 facing the annular component 700 is a third annular surface 1212. The other end of the second connecting ring 720 is connected to the radial middle area of ​​the third annular surface 1212 to ensure the reliability of the welding between the second connecting ring 720 and the annular boss 1211.

[0073] In one embodiment, the second connecting ring 720 is welded to the third annular surface 1212 of the annular boss 1211.

[0074] In one exemplary embodiment, the connected component 300 may include an exciter 310 configured to drive the movable member 220 downward along the Y-axis in response to an excitation signal, thereby disconnecting at least one of the at least one conductive path, achieving the purpose of disconnecting the path.

[0075] In another embodiment, the connected component 300 may include a pressure relief valve that, upon rupture, releases gas from the contact cavity 100 to prevent an explosion of the contact cavity 100.

[0076] like Figure 2 As shown, at least a portion of the connected component 300 is located within the contact cavity 100. The connected component 300 is mounted on top of the ceramic cover 121 via an annular member 700.

[0077] In one embodiment, the top of the ceramic cover 121 has a mounting hole 123 extending through the top of the ceramic cover 121 along the Y-axis direction, and at least a portion of the connected component 300 is located within the mounting hole 123.

[0078] Of course, in other embodiments, the connected component 300 may not be located within the mounting hole 123.

[0079] Please continue reading. Figure 3 The connected assembly 300 also includes an adapter 340, through which the exciter 310 is assembled to the top of the ceramic cover 121. The adapter 340 includes a sleeve 341 and a first flange 342. The sleeve 341 passes through the mounting hole 123, and the first flange 342 protrudes from the outer peripheral side of the sleeve 341 and connects to the first annular surface 711, so that at least a portion of the exciter 310 is fixed within the sleeve 341. The exciter 310 and the sleeve 341 can be connected by welding.

[0080] In one embodiment, the exciter 310 is able to release gas after being aroused, and the gas pressure acts on the movable member 220 to cause the movable member 220 to move downward along the Y-axis direction.

[0081] In another embodiment, the connected component 300 further includes an impact member. When the exciter 310 is activated, it releases gas. The gas pressure drives the impact member to move, causing it to strike the movable member 220, thereby moving the movable member 220 downwards along the Y-axis. The impact member can be made of an insulating material, such as plastic or ceramic.

[0082] The "excitation signal" is generated when the threshold current (i.e., a large short-circuit current) passes through the contact component 200.

[0083] For monitoring the threshold current, a current sensor can be used to monitor the current value of the contact component 200.

[0084] In one embodiment, the igniter 310 may include gunpowder. When a threshold current passes through the contact component 200, the gunpowder is ignited, instantly generating a large amount of gas.

[0085] In one embodiment, the exciter 310 may be an electric detonator or an electric detonating tube, but is not limited thereto.

[0086] In one embodiment, the other end of the second connecting ring 720 is located outside the contact cavity 100, i.e., the annular component 700 is located on the outer wall surface of the contact cavity 100.

[0087] Of course, in another implementation, such as Figure 4 As shown, the other end of the second connecting ring 720 is connected to the inner wall of the contact cavity 100, that is, the annular component 700 is located inside the contact cavity 100.

[0088] As a modified embodiment, the exciter 310 may also be directly connected to the annular component 700 instead of being connected to the annular component 700 via the adapter 340.

[0089] Specifically, such as Figure 5 As shown, the exciter 310 has a housing 311, and the outer periphery of the housing 311 has a second flange 312. The second flange 312 is connected to the first annular surface 711 of the first connecting ring 710 of the annular component 700. The second flange 312 and the first connecting ring 710 may be welded together.

[0090] In this embodiment of the application, the exciter 310 is directly connected to the annular component 700 instead of through the adapter 340, saving a part and a welding process, thereby reducing costs and improving assembly efficiency.

[0091] In one embodiment, gunpowder is encapsulated within the outer casing 311.

[0092] like Figure 5 As shown, the annular component 700 is located outside the contact cavity 100, and after the exciter 310 is connected to the annular component 700, part of the housing 311 is located inside the mounting hole 123.

[0093] As a modified embodiment, such as Figure 6As shown, the annular component 700 may also be located inside the contact cavity 100, and the housing 311 of the exciter 310 may not be located inside the mounting hole 123, or a portion of the housing 311 of the exciter 310 may be located inside the mounting hole 123.

[0094] like Figure 7 and Figure 8 As shown, the thickness t1 of the first connecting ring 710 is greater than the wall thickness t2 of the second connecting ring 720.

[0095] In this embodiment of the application, the thickness t1 of the first connecting ring 710 is designed to be relatively large. When the first connecting ring 710 is welded to the connected component 300, it is beneficial to increase the laser welding penetration depth, avoid defects such as incomplete welding and incomplete penetration, and improve the reliability of the connection.

[0096] Of course, as a variation, such as Figure 3 As shown, the thickness of the first connecting ring 710 can also be equal to the wall thickness of the second connecting ring 720.

[0097] In summary, the advantages and beneficial effects of the relays in the embodiments of this application include at least the following:

[0098] In the relay of this application embodiment, the inner ring portion 713 of the first connecting ring 710 extends out of the inner ring surface of the second connecting ring 720, and the outer ring portion 714 of the first connecting ring 710 extends out of the outer ring surface of the second connecting ring 720. That is, the first connecting ring 710 is generally recessed. When the ring width of the first connecting ring 710 remains unchanged and the connection position between the second connecting ring 720 and the contact cavity 100 remains unchanged, the first connecting ring 710 will not extend excessively out of the outer ring surface and inner ring surface 72 of the second connecting ring 720, thereby not occupying excessive space around the annular component 700, which is conducive to realizing the miniaturization design of the relay.

[0099] Furthermore, designing the cross-sectional shape of the annular component 700 as T-shaped can improve the stability of the annular component 700, thereby enhancing the robustness of the connection between the connected component 300, the annular component 700, and the contact cavity 100.

[0100] Furthermore, when the first annular surface 711 of the first connecting ring 710 of the annular component 700 is welded to the connected component 300, and the second connecting ring 720 of the annular component 700 is welded to the contact cavity 100, the area of ​​the first annular surface 711 of the first connecting ring 710 is relatively large, resulting in a larger solder pad between the first connecting ring 710 and the connected component 300. This reduces the welding precision requirements and helps improve production efficiency. Conversely, the solder pad between the second connecting ring 720 and the contact cavity 100 is smaller. When the second connecting ring 720 is connected to the ceramic cover 121, the welding stress between the second connecting ring 720 and the ceramic cover 121 is lower, ensuring welding reliability and thus guaranteeing the strong connection between the annular component 700 and the ceramic cover 121 and the sealing performance of the contact cavity 100.

[0101] Furthermore, when the connected component 300 is located between the two leads 211, since the first connecting ring 710 does not extend excessively beyond the outer ring surface of the second connecting ring 720, the annular component 700 does not occupy excessive space between the two leads 211. Therefore, the distance between the two leads 211 can be appropriately shortened, improving the space utilization rate outside the contact cavity 100.

[0102] Furthermore, the thickness of the first connecting ring 710 is designed to be relatively large. When the first connecting ring 710 is welded to the connected component 300, it is beneficial to increase the laser welding penetration depth, avoid defects such as incomplete welding and incomplete penetration, and improve the reliability of the connection.

[0103] It is understood that the various embodiments / implementations provided in this application can be combined with each other without creating contradictions, and will not be described one by one here.

[0104] In the embodiments of this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0105] In the description of the embodiments of the application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the application.

[0106] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the claims. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0107] The above are merely preferred embodiments of the application examples and are not intended to limit the application examples. For those skilled in the art, the application examples can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the application examples should be included within the protection scope of the application examples.

Claims

1. A relay, characterized in that, include: Contact cavity; The connected component; as well as An annular component includes a first connecting ring and a second connecting ring. The first connecting ring includes an inner ring portion and an outer ring portion. The outer ring portion surrounds the outer periphery of the inner ring portion. The inner ring portion extends out of the inner ring surface of the second connecting ring, and the outer ring portion extends out of the outer ring surface of the second connecting ring. One of the connected components and the contact cavity is connected to the inner ring portion and the outer ring portion. One axial end of the second connecting ring is connected to the first connecting ring, and the other of the connected components and the contact cavity is connected to the other axial end of the second connecting ring.

2. The relay according to claim 1, characterized in that, The connected component is welded to the inner ring and the outer ring; and / or, the other end of the second connecting ring is welded to the contact cavity.

3. The relay according to claim 1, characterized in that, The first connecting ring is perpendicularly connected to the second connecting ring.

4. The relay according to claim 1, characterized in that, The thickness of the first connecting ring is greater than or equal to the wall thickness of the second connecting ring.

5. The relay according to claim 1, characterized in that, The width of the inner ring is equal to the width of the outer ring.

6. The relay according to any one of claims 1-5, characterized in that, The second connecting ring is axially connected at its other end to the outer or inner wall of the contact cavity.

7. The relay according to any one of claims 1-5, characterized in that, The contact cavity has a mounting hole, at least a portion of the connected component is located within the mounting hole, and the second connecting ring is axially connected at its other end to the edge of the mounting hole opening; The orthographic projection of the mounting hole on a target plane is the first projection, and the orthographic projection of the second connecting ring on the target plane is the second projection. The first projection is located within the inner circle of the second projection, and the target plane is perpendicular to the axis of the second connecting ring.

8. The relay according to any one of claims 1-5, characterized in that, The connected component is connected to the inner ring portion and the outer ring portion, the contact cavity is axially connected to the other end of the second connecting ring, and the connected component includes an exciter.

9. The relay according to claim 8, characterized in that, The connected component further includes an adapter, comprising a sleeve and a first flange, wherein the exciter is fixed inside the sleeve, the first flange protrudes from the outer peripheral side of the sleeve, and the first flange is connected to the inner ring portion and the outer ring portion.

10. The relay according to any one of claims 1-5, characterized in that, The contact cavity is also provided with two lead-out members, and the connected component is located between the two lead-out members.

11. The relay according to any one of claims 1-5, characterized in that, The contact cavity includes a ceramic cover, and the second connecting ring is axially connected to the ceramic cover at the other end.

12. The relay according to any one of claims 1-5, characterized in that, The first connecting ring further includes a middle ring portion, which is connected between the inner ring portion and the outer ring portion; One of the inner ring portion, the middle ring portion, and the outer ring portion forms a first annular surface, and the connected component is connected to the first annular surface; the other of the inner ring portion, the middle ring portion, and the outer ring portion forms a second annular surface, and the second connecting ring is connected to the second annular surface; the first annular surface and the second annular surface are arranged opposite to each other along the thickness direction of the first connecting ring.

13. The relay according to any one of claims 1-5, characterized in that, The contact cavity is provided with an annular boss, and the surface of the annular boss facing the annular component is a third annular surface. The second connecting ring is axially connected to the other end of the radial middle region of the third annular surface.

14. The relay according to any one of claims 1-5, characterized in that, The cross-sectional shape of the annular component is T-shaped.

15. The relay according to any one of claims 1-5, characterized in that, The connected component includes a pressure relief valve.

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