Relay

Abstract

The present disclosure provides a relay, comprising a housing, a first contact portion, and a positioning member. The inner wall surface of the housing is provided with a second positioning portion. The first contact portion comprises a first lead-out tab. The positioning member is arranged in the housing and is connected to the first lead-out tab. The positioning member is provided with a first positioning portion which is in positioning fit with the second positioning portion.

Description

relay

[0001] This disclosure claims priority to Chinese Patent Application No. 202423026886.5, filed on December 09, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of electrical control device technology, and more specifically, to a relay. Background Technology

[0003] 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.

[0004] In related technologies, the contacts of a relay are typically positioned and connected to the housing via lead-out tabs. Specifically, one end of the lead-out tab is bent to form a positioning structure that engages with the housing. Since the lead-out tab connects to the load, its thickness needs to be relatively large to ensure sufficient current carrying capacity. However, when the lead-out tab is thick, it is difficult to bend it to form the positioning structure, and even if a positioning structure is formed, it occupies a significant amount of space. Furthermore, to reduce the space occupied by the positioning structure, it is usually flattened; however, this flattening process can easily damage the components. Summary of the Invention

[0005] This disclosure provides a relay to solve the problem in related technologies where the lead-out piece occupies a large space due to its positioning with the housing.

[0006] The relay of this disclosure embodiment includes:

[0007] The outer casing has a second positioning part on its inner wall surface;

[0008] The first contact portion includes the first lead-out piece; and

[0009] A positioning element is disposed inside the housing and connected to the first lead-out piece; the positioning element has a first positioning part that positions and cooperates with the second positioning part.

[0010] According to some embodiments of this disclosure, the positioning element is a sheet-like structure, and the thickness of the positioning element is less than the thickness of the first lead-out sheet.

[0011] According to some embodiments of this disclosure, the first positioning part is formed by integrally bending one end of the positioning member.

[0012] According to some embodiments of this disclosure, the first contact portion further includes a first stationary contact, and the first stationary contact, the first lead-out piece, and the positioning member are connected.

[0013] According to some embodiments of this disclosure, the first stationary contact, the first lead-out piece, and the positioning member are connected by riveting.

[0014] According to some embodiments of this disclosure, the first contact portion further includes a first movable spring;

[0015] The positioning element has a first through hole, the first movable spring has a second through hole, the first lead-out piece has a third through hole, and the first stationary contact is disposed in the first through hole, the second through hole, and the third through hole to rivet the first movable spring, the positioning element, and the first lead-out piece.

[0016] According to some embodiments of this disclosure, the first contact portion further includes a first movable spring, and the positioning member has a notch;

[0017] The first lead-out piece includes a first lead-out portion and a second lead-out portion. The first lead-out portion is located between the first movable spring and the positioning member. The second lead-out portion is connected to the first lead-out portion and extends through the notch onto the side surface of the positioning member opposite to the first lead-out portion.

[0018] According to some embodiments of this disclosure, the first lead-out sheet further includes a third lead-out portion located outside the housing, the third lead-out portion being connected to the end of the second lead-out portion away from the first lead-out portion; the third lead-out portion is perpendicular to the second lead-out portion, the second lead-out portion is perpendicular to the first lead-out portion, and the third lead-out portion and the first lead-out portion are respectively located on both sides of the thickness direction of the second lead-out portion.

[0019] According to some embodiments of this disclosure, the relay further includes a second contact portion for contacting or separating from the first contact portion;

[0020] Wherein, the second contact portion and the first contact portion form a parallel circuit structure after contact.

[0021] According to some embodiments of this disclosure, the first contact portion further includes a first movable spring, a first stationary contact, and a second movable contact, and the second contact portion includes a second movable spring, a first movable contact, and a second stationary contact. The first movable contact is used to contact or separate from the first stationary contact, and the second movable contact is used to contact or separate from the second stationary contact.

[0022] Wherein, when the first contact portion and the second contact portion are in an open state, the contact gap between the first moving contact and the first stationary contact is smaller than the contact gap between the second moving contact and the second stationary contact.

[0023] According to some embodiments of this disclosure, the second positioning part is a groove.

[0024] One embodiment disclosed above has at least the following advantages or beneficial effects:

[0025] In the relay of this embodiment, the positioning member is connected to the first lead-out piece, and the positioning member has a first positioning part that positions and cooperates with the second positioning part of the housing. On the one hand, the first positioning part of the positioning member can be designed to be small and thin, so as not to occupy too much space inside the relay and to avoid subsequent flattening processing; on the other hand, the setting of the positioning member increases the heat dissipation area of ​​the first lead-out piece, effectively reducing the temperature rise.

[0026] Furthermore, the thinner thickness of the positioning component makes it easier to process when integrally bent to form the first positioning part. In addition, the overall size of the formed first positioning part is small, so during assembly, it will not occupy excessive space in the relay or interfere with other components. Attached Figure Description

[0027] Figure 1 shows a perspective view of a relay according to an embodiment of the present disclosure.

[0028] Figure 2 shows an exploded view of a relay according to an embodiment of the present disclosure.

[0029] Figure 3 shows a top view of the first housing and fasteners, omitting Figure 1.

[0030] Figure 4 shows a top view of the first contact portion and the positioning element installed inside the second housing.

[0031] Figure 5 shows a three-dimensional schematic diagram of the positioning component and the first contact part after assembly from one perspective.

[0032] Figure 6 shows a three-dimensional schematic diagram from another perspective after the positioning component and the first contact part are assembled.

[0033] Figure 7 shows a three-dimensional schematic diagram of the positioning component.

[0034] The reference numerals in the attached drawings are explained as follows: 100, outer casing; 110, first housing; 120, second housing; 121, second positioning part; 130, fixing member; 200, contact assembly; 200a, arc-resistant end contact group; 200b, current-carrying end contact group; 210, first contact portion; 211, first moving spring; 212, first stationary contact; 213, second moving contact; 220, second contact portion; 221, second moving spring; 222, first... Moving contact; 223, second stationary contact; 230, first lead-out piece; 231, first lead-out part; 232, second lead-out part; 233, third lead-out part; 240, second lead-out piece; 300, armature assembly; 331, swing shaft; 500, coil assembly; 710, positioning element; 711, first positioning piece; 7111, notch; 712, second positioning piece; 713, first positioning part; 714, first through hole. Detailed Implementation

[0035] 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 disclosure 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.

[0036] It is understood that the terms "comprising" and "having," and any variations thereof, used in the embodiments of this disclosure, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus 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 such processes, methods, products, or apparatus.

[0037] This disclosure provides a relay, which can be a magnetic latching relay, but is not limited thereto. As shown in Figures 1 and 2, the relay includes a housing 100, a contact assembly 200, an armature assembly 300, and a coil assembly 500. The contact assembly 200 is disposed within the housing 100 and has a closed state and an open state. The armature assembly 300 is disposed within the housing 100 and is used to drive the contact assembly 200 to switch from the closed state to the open state and from the open state to the closed state. The coil assembly 500 is disposed within the housing 100 and is electromagnetically coupled to the armature assembly 300.

[0038] In one embodiment, as shown in FIG2, the outer casing 100 may include a first casing 110 and a second casing 120, which are connected together to form a hollow cavity for accommodating the contact assembly 200, the armature assembly 300, and the coil assembly 500. The shape of the first casing 110 and the second casing 120 after connection can have various embodiments. For example, in the embodiments of this disclosure, the shape of the first casing 110 and the second casing 120 after connection is a hollow cuboid. Of course, in other embodiments, the shape of the first casing 110 and the second casing 120 after connection can also be a hollow cylinder, or other suitable shapes.

[0039] As an example, the second housing 120 is a cuboid shape with an opening, and the contact assembly 200, armature assembly 300, and coil assembly 500 are installed inside the second housing 120 through the opening. The first housing 110 is plate-shaped and is fastened to the opening of the second housing 120 to form a hollow cuboid.

[0040] Of course, in other embodiments, both the first housing 110 and the second housing 120 are cuboid in shape and each has an opening on one side. The opening of the first housing 110 is opposite to the opening of the second housing 120, and the first housing 110 and the second housing 120 are fastened together to form a hollow cavity for accommodating the contact assembly 200, the armature assembly 300 and the coil assembly 500.

[0041] As shown in Figure 3, in one embodiment, the contact assembly 200 includes two contact portions arranged side-by-side along the thickness direction of the contact portions. Furthermore, the two contact portions form a parallel circuit structure after contact. For ease of explanation, the two contact portions are defined as a first contact portion 210 and a second contact portion 220, respectively.

[0042] The first contact portion 210 includes a first movable spring 211, a first stationary contact 212, and a second movable contact 213, which are respectively mounted at both ends of the first movable spring 211 along its length. As an example, the first stationary contact 212 and the second movable contact 213 can be mounted on the first movable spring 211 by riveting, but this is not a limitation.

[0043] The second contact portion 220 includes a second movable spring 221, a first movable contact 222, and a second stationary contact 223, which are respectively mounted at both ends of the second movable spring 221 along its length. As an example, the first movable contact 222 and the second stationary contact 223 can be mounted on the second movable spring 221 by riveting, but this is not a limitation.

[0044] As shown in Figure 3, the first movable spring 211 and the second movable spring 221 are arranged side by side along the thickness direction of the movable springs and are approximately parallel to each other. Along the side-by-side arrangement direction of the first movable spring 211 and the second movable spring 221, the position of the first movable contact 222 corresponds to that of the first stationary contact 212, and the first movable contact 222 is used to contact or separate from the first stationary contact 212; the position of the second movable contact 213 corresponds to that of the second stationary contact 223, and the second movable contact 213 is used to contact or separate from the second stationary contact 223.

[0045] When the contact assembly 200 is in the closed state, the first moving contact 222 is in contact with the first stationary contact 212, and the second moving contact 213 is in contact with the second stationary contact 223, so that the first moving spring 211 and the second moving spring 221 form a parallel circuit structure. When the contact assembly 200 is in the open state, the first moving contact 222 is separated from the first stationary contact 212, and the second moving contact 213 is separated from the second stationary contact 223.

[0046] As shown in Figures 2 and 3, the armature assembly 300 is located on the side of the second contact portion 220 facing away from the first contact portion 210. A fixing member 130 is fixedly provided inside the housing 100; the fixing member 130 can be connected to the second housing 120, but is not limited thereto. The armature assembly 300 is oscillatingly connected to the fixing member 130 via a swing shaft 331, used to drive the first moving spring 211 and the second moving spring 221 to move, so that the first moving contact 222 and the second moving contact 213 respectively contact or separate from the first stationary contact 212 and the second stationary contact 223. The coil assembly 500 is configured to drive the armature assembly 300 to oscillate relative to the fixing member 130 in response to an input signal.

[0047] In one embodiment, when the contact assembly 200 is in the off state, the contact gap between the first moving contact 222 and the first stationary contact 212 is smaller than the contact gap between the second moving contact 213 and the second stationary contact 223.

[0048] For ease of explanation, the first moving contact 222 and the first stationary contact 212 with a smaller contact gap are defined as the arc-resistant end contact group 200a, and the second moving contact 213 and the second stationary contact 223 with a larger contact gap are defined as the current-carrying end contact group 200b.

[0049] Because the contact gap of the arc-resistant contact group 200a is smaller than that of the current-carrying contact group 200b when the contact component 200 is in the open state, the current-carrying contact group 200b will disconnect before the arc-resistant contact group 200a during the switching process from the closed to the open state of the contact component 200. Furthermore, the arc-resistant contact group 200a is not completely disconnected until the current-carrying contact group 200b has just disconnected. Therefore, the current-carrying contact group 200b functions as a current carrier, while the arc-resistant contact group 200a functions as an arc suppressor. In other words, the arc-resistant contact group 200a will generate an electric arc, while the current-carrying contact group 200b will not.

[0050] As shown in Figures 2 and 3, the first contact portion 210 further includes a first lead-out piece 230, and the second contact portion 220 further includes a second lead-out piece 240. The first lead-out piece 230 is connected to one end of the first moving spring 211 that has a first stationary contact 212, and a portion of the first lead-out piece 230 extends beyond the outer surface of the housing 100. The second lead-out piece 240 is connected to one end of the second moving spring 221 that has a second stationary contact 223, and a portion of the second lead-out piece 240 extends beyond the outer surface of the housing 100. The portions of the first lead-out piece 230 and the second lead-out piece 240 extending beyond the outer surface of the housing 100 are used to connect to the positive and negative terminals of the load.

[0051] Of course, in other embodiments, the first contact portion 210 and the second contact portion 220 are not limited to a parallel circuit structure when closed. For example, in another embodiment, the first contact portion 210 includes a first lead-out piece 230 and a first stationary contact 212, with the first stationary contact 212 disposed on the first lead-out piece 230. The second contact portion 220 includes a second moving spring 221 and a first moving contact 222, with the first moving contact 222 disposed on the second moving spring 221. The armature assembly 300 is used to drive the second moving spring 221 to move, so that the first moving contact 222 contacts or separates from the first stationary contact 212.

[0052] As shown in Figures 4 to 6, the inner wall surface of the second housing 120 of the outer casing 100 is provided with a second positioning portion 121. The relay also includes a positioning member 710, which is disposed inside the outer casing 100. The positioning member 710 is connected to the first lead-out piece 230 and has a first positioning portion 713 that positions and cooperates with the second positioning portion 121.

[0053] In the relay of this embodiment, the positioning member 710 is connected to the first lead-out piece 230, and the positioning member 710 has a first positioning part 713 that positions and engages with the second positioning part 121 of the housing 100. On the one hand, the first positioning part 713 of the positioning member 710 can be designed to be small and thin, so as not to occupy too much space inside the relay and to avoid subsequent flattening. On the other hand, the positioning member 710 increases the heat dissipation area of ​​the first lead-out piece 230, effectively reducing the temperature rise.

[0054] Therefore, in this embodiment, the positioning element 710 not only serves a positioning function but also a heat dissipation function. One positioning element 710 has at least two functions, reducing the number of parts required for the relay, thereby simplifying the design and manufacturing process and helping to improve production efficiency. Furthermore, using one part to replace multiple parts can significantly improve space utilization, thereby reducing product size.

[0055] In one embodiment, the first positioning part 713 is formed by integrally bending one end of the positioning member 710.

[0056] In one embodiment, the positioning member 710 is a sheet-like structure, and the thickness of the positioning member 710 is less than the thickness of the first lead-out sheet 230.

[0057] In this embodiment, the positioning member 710 is relatively thin, making it easier to process when integrally bent to form the first positioning portion 713. Furthermore, the overall size of the formed first positioning portion 713 is small, so during assembly, it does not occupy excessive space in the relay or interfere with other components.

[0058] Of course, in other embodiments, the thickness of the positioning member 710 may be equal to or greater than the thickness of the first lead-out piece 230.

[0059] As shown in Figures 4 to 6, the first lead-out piece 230 is located on the side of the first movable spring piece 211 facing away from the second movable spring piece 221, and the first lead-out piece 230 includes a first lead-out portion 231, a second lead-out portion 232, and a third lead-out portion 233. The first lead-out portion 231 is connected to the first movable spring piece 211, and the first lead-out portion 231 is arranged parallel to the first movable spring piece 211. One end of the second lead-out portion 232 is connected to the first lead-out portion 231, and the other end is connected to the third lead-out portion 233. The third lead-out portion 233 extends out of the outer surface of the housing 100 for connection with a load.

[0060] In one embodiment, the third lead-out portion 233 is perpendicular to the second lead-out portion 232, the second lead-out portion 232 is perpendicular to the first lead-out portion 231, and the third lead-out portion 233 and the first lead-out portion 231 are located on both sides of the thickness direction of the second lead-out portion 232.

[0061] As shown in Figures 5 to 7, the positioning member 710 includes a first positioning piece 711 and a second positioning piece 712. The first positioning piece 711 is located on the side of the first movable spring 211 facing away from the second movable spring 221. The second positioning piece 712 is connected to the first positioning piece 711 and is located around the first movable contact 222 and the first stationary contact 212. The end of the first positioning piece 711 away from the second positioning piece 712 has a first positioning portion 713.

[0062] In one embodiment, the first positioning piece 711 and the second positioning piece 712 are vertically connected, but this is not a limitation.

[0063] As shown in Figures 6 and 7, the first positioning piece 711 has a notch 7111. The first lead-out portion 231 is located between the first moving spring 211 and the first positioning piece 711, and the second lead-out portion 232 extends through the notch 7111 onto the side surface of the first positioning piece 711 facing away from the first lead-out portion 231.

[0064] As shown in Figures 5 to 7, the first moving spring 211, the first lead-out piece 230, and the positioning member 710 are connected by riveting.

[0065] In one embodiment, the first positioning piece 711 of the positioning member 710 has a first through hole 714, which penetrates the first positioning piece 711 along its thickness direction. The first movable spring 211 has a second through hole (not shown in the figure), which penetrates the first movable spring 211 along its thickness direction. The first lead-out portion 231 of the first lead-out piece 230 has a third through hole (not shown in the figure), which penetrates the first lead-out portion 231 along its thickness direction. The first through hole 714, the second through hole, and the third through hole are positioned correspondingly, and the first stationary contact 212 passes through the first through hole 714, the second through hole, and the third through hole, and rivets the first movable spring 211, the positioning member 710, and the first lead-out piece 230 together.

[0066] In this embodiment of the present disclosure, the first moving spring 211, the positioning member 710 and the first lead-out piece 230 are riveted together by the first stationary contact 212, which can improve the assembly efficiency of the first contact portion 210, the first lead-out piece 230 and the positioning member 710.

[0067] As shown in Figure 4, the second positioning part 121 is a groove, and the first positioning part 713 is positioned in the groove.

[0068] It is understood that the second positioning part 121 in the second housing 120 that is positioned and engaged with the first positioning part 713 is not limited to a groove. For example, the second positioning part 121 can also be a positioning hole, a positioning protrusion, etc.

[0069] In summary, the relays of the present disclosure embodiments have at least the following advantages and beneficial effects:

[0070] In the relay of this embodiment, the positioning member 710 is connected to the first lead-out piece 230, and the positioning member 710 has a first positioning part 713 that positions and engages with the second positioning part 121 of the housing 100. On the one hand, the first positioning part 713 of the positioning member 710 can be designed to be small and thin, so as not to occupy too much space inside the relay and to avoid subsequent flattening. On the other hand, the positioning member 710 increases the heat dissipation area of ​​the first lead-out piece 230, effectively reducing the temperature rise.

[0071] Furthermore, the positioning element 710 is relatively thin, making it easier to process when integrally bent to form the first positioning part 713. In addition, the overall size of the formed first positioning part 713 is small, so during assembly, it will not occupy too much space in the relay, nor will it interfere with other components.

[0072] It is understood that the various embodiments / implementations provided in this disclosure can be combined with each other without creating contradictions, and will not be described in detail here.

[0073] In the disclosed embodiments, 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 disclosed embodiments according to the specific circumstances.

[0074] In the description of the disclosed embodiments, 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 disclosed embodiments 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 disclosed embodiments.

[0075] 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 disclosed embodiments. 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.

[0076] The above are merely preferred embodiments of the disclosed embodiments and are not intended to limit the disclosed embodiments. For those skilled in the art, the disclosed embodiments can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the disclosed embodiments should be included within the protection scope of the disclosed embodiments.

Claims

1. A relay, characterized in that, include: The outer casing has a second positioning part on its inner wall surface; The first contact portion includes the first lead-out piece; as well as A positioning element is disposed inside the housing and connected to the first lead-out piece; the positioning element has a first positioning part that positions and cooperates with the second positioning part.

2. The relay according to claim 1, characterized in that, The positioning element is a sheet-like structure, and the thickness of the positioning element is less than the thickness of the first lead-out sheet.

3. The relay according to claim 1, characterized in that, The first positioning part is formed by integrally bending one end of the positioning member.

4. The relay according to claim 1, characterized in that, The first contact portion further includes a first stationary contact, and the first stationary contact, the first lead-out piece, and the positioning member are connected.

5. The relay according to claim 4, characterized in that, The first stationary contact, the first lead-out piece, and the positioning member are connected by riveting.

6. The relay according to claim 5, characterized in that, The first contact portion also includes a first movable spring; The positioning element has a first through hole, the first movable spring has a second through hole, the first lead-out piece has a third through hole, and the first stationary contact is disposed in the first through hole, the second through hole, and the third through hole to rivet the first movable spring, the positioning element, and the first lead-out piece.

7. The relay according to claim 1, characterized in that, The first contact portion further includes a first movable spring, and the positioning member has a notch; The first lead-out piece includes a first lead-out portion and a second lead-out portion. The first lead-out portion is located between the first movable spring and the positioning member. The second lead-out portion is connected to the first lead-out portion and extends through the notch onto the side surface of the positioning member opposite to the first lead-out portion.

8. The relay according to claim 7, characterized in that, The first lead-out piece further includes a third lead-out portion located outside the outer shell, the third lead-out portion being connected to the end of the second lead-out portion away from the first lead-out portion; the third lead-out portion is perpendicular to the second lead-out portion, the second lead-out portion is perpendicular to the first lead-out portion, and the third lead-out portion and the first lead-out portion are respectively located on both sides of the thickness direction of the second lead-out portion.

9. The relay according to claim 1, characterized in that, The relay further includes a second contact portion for contacting or separating from the first contact portion; Wherein, the second contact portion and the first contact portion form a parallel circuit structure after contact.

10. The relay according to claim 9, characterized in that, The first contact portion further includes a first movable spring, a first stationary contact and a second movable contact, and the second contact portion includes a second movable spring, a first movable contact and a second stationary contact. The first movable contact is used to contact or separate from the first stationary contact, and the second movable contact is used to contact or separate from the second stationary contact. Wherein, when the first contact portion and the second contact portion are in an open state, the contact gap between the first moving contact and the first stationary contact is smaller than the contact gap between the second moving contact and the second stationary contact.

11. The relay according to any one of claims 1-10, characterized in that, The second positioning part is a groove.

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