Relay

Abstract

The utility model discloses a relay which comprises a static spring part and a movable spring part. The static spring part is provided with a static contact group; the movable spring part comprises a leading-out part, a bent section, a movable section and a movable contact group, one end of the bent section is connected with the leading-out part, the other end of the bent section is integrally connected with the movable section, and the movable contact group is connected to the movable section and used for being in contact with or separated from the static contact group; wherein the movable section is reversely bent to a position opposite to the leading-out part in a first direction by means of the bending section, and the first direction is a contact and separation direction of the movable contact group and the static contact group.

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] A relay comprises a moving spring section, a stationary spring section, and a magnetic circuit section. The moving spring section includes a moving spring lead, a moving spring plate, and a moving contact. In existing technology, the moving spring plate is typically elongated, with its lower end connected to the moving spring lead and its upper end connected to the magnetic circuit section. The magnetic circuit section is configured to drive the moving spring plate to deform, which in turn causes the moving spring plate to contact or separate the moving contact from the stationary spring section. Because the moving spring plate needs to deform, its length needs to be designed to be relatively long to improve its flexibility. Furthermore, to further improve the flexibility of the moving spring plate, a bending structure is often incorporated, which necessitates an even longer length. This longer length of the moving spring plate is detrimental to material cost savings and increases the relay's height, hindering miniaturization design. Utility Model Content

[0004] This application provides a relay to address the problems of excessive height and high cost of relays in related technologies.

[0005] The relay in this application embodiment includes:

[0006] The stationary spring section has a stationary contact group;

[0007] The moving spring part includes an outlet, a curved section, a movable section, and a moving contact group. One end of the curved section is connected to the outlet, and the other end of the curved section is integrally connected to the movable section. The moving contact group is connected to the movable section and is used to contact or separate from the stationary contact group.

[0008] The movable section is bent in the opposite direction by means of the curved section to a position opposite to the lead-out portion in a first direction, where the first direction is the contact separation direction of the moving contact group and the stationary contact group.

[0009] According to some embodiments of this application, the bending path of the bending segment is an arc, and the central angle of the arc is θ, 180°≤θ≤240°.

[0010] According to some embodiments of this application, the movable spring portion further includes a drive section connected to the movable section;

[0011] The relay also includes a magnetic circuit portion connected to the drive section. The magnetic circuit portion is configured to drive the movable section to move via the drive section in response to an input signal, so that the movable section drives the moving contact group to move.

[0012] According to some embodiments of this application, the drive segment is connected to the end of the movable segment away from the curved segment.

[0013] According to some embodiments of this application, the driving segment and the movable segment are an integral structure.

[0014] According to some embodiments of this application, the drive segment includes a first segment and a second segment, one end of the first segment is connected to the movable segment, one end of the second segment is connected to the other end of the first segment, and the second segment extends out of the side surface of the first segment opposite to the magnetic circuit portion.

[0015] The magnetic circuit includes a coil assembly, an armature assembly, and a push rod. The coil assembly is magnetically coupled to the armature assembly. One end of the push rod is connected to the armature assembly, and the other end is connected to the first segment. The second segment supports the other end of the push rod.

[0016] According to some embodiments of this application, the first segment includes a bending portion and a force-bearing portion, one end of the bending portion is connected to the movable segment, one end of the force-bearing portion is connected to the other end of the bending portion, and the other end of the force-bearing portion is connected to the second segment;

[0017] The other end of the push rod has a slot, and the force-receiving part is engaged in the slot.

[0018] According to some embodiments of this application, the relay further includes a magnetic circuit portion configured to drive the movable segment to move in response to an input signal, so that the movable segment drives the moving contact group to move;

[0019] The magnetic circuit section has a coil assembly, and when the coil assembly is not energized, the movable section is parallel to the lead-out section.

[0020] According to some embodiments of this application, the lead-out portion includes a movable spring lead-out piece and a connecting section, the connecting section being connected to the movable spring lead-out piece, and one end of the bent section being integrally connected to the connecting section; the movable section is arranged opposite to at least one of the movable spring lead-out piece and the connecting section in a first direction.

[0021] According to some embodiments of this application, the connecting section, the bending section, and the movable section constitute a movable spring. The movable spring is composed of two conductive sheets stacked together. The two conductive sheets are made of different materials, and the stiffness of one of the conductive sheets is greater than that of the other conductive sheet.

[0022] According to some embodiments of this application, the stationary spring portion includes a first stationary spring lead-out piece and a second stationary spring lead-out piece, the stationary contact group includes a first stationary contact group and a second stationary contact group, the first stationary contact group is connected to the first stationary spring lead-out piece, and the second stationary contact group is connected to the second stationary spring lead-out piece; the moving contact group is located between the first stationary contact group and the second stationary contact group.

[0023] According to some embodiments of this application, the curved section is provided with at least one opening;

[0024] The opening starts from the lead-out portion and extends towards the movable section along the bending direction of the curved section, with the size of the opening gradually increasing.

[0025] An embodiment of the above application has at least the following advantages or beneficial effects:

[0026] The relay in this embodiment includes a moving spring portion comprising a lead-out portion, a bent section, and a movable section. The movable section is bent in the opposite direction by the bent section to a position opposite to the lead-out portion in a first direction. This bent section provides sufficient flexibility, allowing the movable section to drive the moving contact group to contact or separate from the stationary contact group. The bent section in the moving spring portion eliminates the need for an excessively long overall length while ensuring sufficient flexibility, thus saving material costs. Furthermore, the bending of the movable section to a position opposite to the lead-out portion significantly reduces the height occupied by the moving spring portion, facilitating product miniaturization.

[0027] Furthermore, by setting openings on the curved section, and designing the size of the openings to gradually increase in the direction extending from the lead-out portion towards the movable section, on the one hand, the setting of the openings can reduce the rigidity of the curved section, so that the curved section has sufficient flexibility to ensure the flexibility of the movable section's movement; on the other hand, the size of the opening is smaller at the end near the lead-out portion and larger at the end near the movable section. This ensures that the end of the curved section near the lead-out portion has sufficient rigidity to prevent the curved section and the movable section from wobbling relative to the connecting section when the coil assembly is not energized, and also ensures that the end of the curved section near the movable section has sufficient flexibility to facilitate the flexible movement of the movable section.

[0028] Furthermore, the second section extends from the side surface of the first section facing away from the magnetic circuit, and the second section supports the other end of the push rod, thus preventing the push rod from detaching from the moving spring during the reciprocating pushing and pulling of the first section.

[0029] Furthermore, the force-bearing part is engaged in the slot of the push rod, which can further prevent the push rod from disengaging from the moving spring. Attached Figure Description

[0030] 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.

[0031] Figure 1 This is a three-dimensional schematic diagram of a relay according to an embodiment of this application.

[0032] Figure 2 It is an omission Figure 1 A 3D diagram of the base.

[0033] Figure 3 This is a three-dimensional schematic diagram of the assembled moving spring and stationary spring parts according to an embodiment of this application.

[0034] Figure 4 It is along Figure 3 A schematic diagram of a side view taken from direction A.

[0035] Figure 5 This is a side view of the moving reed.

[0036] Figure 6 This is a three-dimensional schematic diagram of the moving reed.

[0037] Figure 7 This is a side view of the moving spring section.

[0038] Figure 8 This is a top view of an embodiment of this application.

[0039] Figure 9 It is along Figure 8 A sectional view after cutting along the BB section line.

[0040] The reference numerals in the attached figures are explained as follows:

[0041] 10. Base

[0042] 20. Static spring section

[0043] 20a. Stationary spring lead-out plate

[0044] 20b. Static contact group

[0045] 21. First stationary spring lead-out plate

[0046] 22. Second stationary spring lead-out plate

[0047] 23. First stationary contact group

[0048] 24. Second stationary contact group

[0049] 30. Moving spring section

[0050] 30a. Lead-out section

[0051] 31. Moving spring lead-out plate

[0052] 32. Moving reed

[0053] 32a. Conductive sheet

[0054] 321. Connecting Section

[0055] 322. Curved section

[0056] 323. Movable segment

[0057] 324. Drive segment

[0058] 3241, First paragraph

[0059] 3241a, Bending section

[0060] 3241b, Force-bearing part

[0061] 3242, Second paragraph

[0062] 325. Opening

[0063] 33. Moving contact group

[0064] 40. Magnetic Circuit Section

[0065] 41. Coil Assembly

[0066] 42. Armature assembly

[0067] 43. Push rod

[0068] 431. Card slot

[0069] D1, First Direction

[0070] D2, Second Direction

[0071] D3. Third direction Detailed Implementation

[0072] 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.

[0073] 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.

[0074] like Figure 1 and Figure 2 As shown, the relay in this embodiment includes a base 10, a stationary spring portion 20, a movable spring portion 30, and a magnetic circuit portion 40, which are mounted on the base 10. The magnetic circuit portion 40 is configured to drive the movable spring portion 30 to move in response to an input signal, so that the movable spring portion 30 contacts or separates from the stationary spring portion 20.

[0075] Understandably, the relay may also include a top cover (not shown in the figure), which engages with the base 10 to enclose the stationary spring portion 20, the moving spring portion 30, and the magnetic circuit portion 40 within the cavity formed by the top cover and the base 10.

[0076] In one embodiment, the base 10 and the top cover are made of an insulating material, such as plastic, but are not limited thereto.

[0077] like Figure 2 and Figure 3 As shown, the stationary spring portion 20 includes a stationary spring lead-out piece 20a and a stationary contact assembly 20b. The stationary spring lead-out piece 20a is connected to the base 10, and a portion of the stationary spring lead-out piece 20a extends out of the lower surface of the base 10. In one embodiment, the stationary spring lead-out piece 20a is inserted into the base 10, but this is not a limitation.

[0078] The stationary contact assembly 20b is connected to the stationary spring lead-out piece 20a. In one embodiment, the stationary contact assembly 20b and the stationary spring lead-out piece 20a are separate structures; in another embodiment, the stationary contact assembly 20b and the stationary spring lead-out piece 20a are an integral structure. When the stationary contact assembly 20b and the stationary spring lead-out piece 20a are separate structures, the stationary contact assembly 20b can be installed on the stationary spring lead-out piece 20a by riveting, welding, or other methods.

[0079] like Figure 4As shown, the movable spring portion 30 includes an outlet portion 30a, a bent section 322, a movable section 323, and a movable contact assembly 33. One end of the bent section 322 is connected to the outlet portion 30a, and the other end of the bent section 322 is integrally connected to the movable section 323. The movable contact assembly 33 is connected to the movable section 323 and is used to contact or separate from the stationary contact assembly 20b. The movable section 323 is bent in the opposite direction by means of the bent section 322 to a position opposite to the outlet portion 30a in the first direction D1.

[0080] The lead-out portion 30a is connected to the base 10, and a portion of the lead-out portion 30a extends beyond the lower surface of the base 10. In one embodiment, the moving spring portion 30 includes a moving spring lead-out piece 31, a moving spring piece 32, and a moving contact assembly 33. The moving spring lead-out piece 31 is connected to the base 10, and a portion of the moving spring lead-out piece 31 extends beyond the lower surface of the base 10. In one embodiment, the moving spring lead-out piece 31 is inserted into the base 10, but this is not a limitation. The portions of the stationary spring lead-out piece 20a and the moving spring lead-out piece 31 extending beyond the lower surface of the base 10 are used for connection to an external circuit.

[0081] The movable spring 32 is fixedly connected to the movable spring lead-out piece 31, for example, by riveting or welding. The movable contact assembly 33 is connected to the movable spring 32. In one embodiment, the movable contact assembly 33 and the movable spring 32 can be separate structures; in another embodiment, the movable contact assembly 33 and the movable spring 32 can be an integral structure. When the movable contact assembly 33 and the movable spring 32 are separate structures, the movable contact assembly 33 can be installed on the movable spring 32 by riveting or welding.

[0082] The magnetic circuit section 40 can drive the moving spring 32 to move, so that the moving spring 32 drives the moving contact group 33 to contact or separate from the stationary contact group 20b.

[0083] like Figure 2 As shown, the magnetic circuit portion 40 includes a coil assembly 41, an armature assembly 42, and a push rod 43. The coil assembly 41 is magnetically coupled to the armature assembly 42. One end of the push rod 43 is connected to the armature assembly 42, and the other end is connected to the movable spring 32. The coil assembly 41 is configured to drive the armature assembly 42 to oscillate in response to an input signal. In turn, the armature assembly 42 drives the push rod 43 to reciprocate. The push rod 43 drives the movable spring 32 to move, thereby causing the movable contact group 33 to contact or separate from the stationary contact group 20b.

[0084] Of course, in other embodiments, the magnetic circuit portion 40 can also be linearly driven. For example, the coil assembly 41 is configured to drive the armature assembly 42 to move linearly in response to an input signal.

[0085] In addition, the magnetic circuit part 40 may not include the push rod 43, but the armature assembly 42 is directly connected to the moving spring 32, and the movement of the moving spring 32 is directly driven by the movement of the armature assembly 42.

[0086] It is understood that the relays in the embodiments of this application can be changeover type, normally open type, or normally closed type.

[0087] When the relay is normally open, the moving contact group 33 is separated from the stationary contact group 20b when the coil assembly 41 is not energized; when the relay is normally closed, the moving contact group 33 is in contact with the stationary contact group 20b when the coil assembly 41 is not energized.

[0088] When the relay is a changeover type, the stationary spring lead-out piece 20a may include a first stationary spring lead-out piece 21 and a second stationary spring lead-out piece 22, which are mounted on the base 10. The stationary contact group 20b may include a first stationary contact group 23 and a second stationary contact group 24, with the first stationary contact group 23 mounted on the first stationary spring lead-out piece 21 and the second stationary contact group 24 mounted on the second stationary spring lead-out piece 22; the moving contact group 33 is located between the first stationary contact group 23 and the second stationary contact group 24. When the coil assembly 41 is supplied with a forward current, the moving contact group 33 contacts the first stationary contact group 23 and separates from the second stationary contact group 24; when the coil assembly 41 is supplied with a reverse current, the moving contact group 33 contacts the second stationary contact group 24 and separates from the first stationary contact group 23.

[0089] The moving contact group 33 may have one or more moving contacts, the first stationary contact group 23 may have one or more stationary contacts, and the second stationary contact group 24 may have one or more stationary contacts. This application does not limit these features.

[0090] The following explanation will use a relay as an example of a switching type. Also, for ease of explanation, as... Figure 1 As shown, a first direction D1, a second direction D2, and a third direction D3 are defined. Among them, the first direction D1 is the contact separation direction between the moving contact group 33 and the stationary contact group 20b, the second direction D2 is the axial direction of the coil assembly 41, and the first direction D1, the second direction D2, and the third direction D3 are all perpendicular to each other.

[0091] like Figure 4As shown, the movable spring 32 has a connecting section 321, a bent section 322, and a movable section 323. In this embodiment, the lead-out portion 30a includes the connecting section 321 and the movable spring lead-out piece 31. The connecting section 321 is connected to the movable spring lead-out piece 31. In one embodiment, the connecting section 321 and the movable spring lead-out piece 31 are connected separately, for example, by riveting, welding, or other methods. One end of the bent section 322 is integrally connected to the connecting section 321, and the other end of the bent section 322 is integrally connected to the movable section 323. The movable contact group 33 is mounted on the movable section 323 for contacting or separating from the stationary contact group 20b. The movable section 323 is bent in the opposite direction by means of the bent section 322 to a position opposite to at least one of the movable spring lead-out piece 31 and the connecting section 321 in the first direction D1.

[0092] The relay of this application embodiment includes a moving spring 32 comprising an integrally connected connecting section 321, a bent section 322, and a movable section 323. The movable section 323 is bent in the opposite direction by the bent section 322 to a position opposite to at least one of the moving spring lead-out piece 31 and the connecting section 321 in a first direction D1. This bent section 322 provides sufficient flexibility, allowing the movable section 323 to drive the moving contact group 33 to contact or separate from the stationary contact group 20b. The bent section 322 of the moving spring 32 eliminates the need for an excessively long overall length, ensuring sufficient flexibility and saving material costs. Furthermore, the bending of the movable section 323 to a position opposite to at least one of the moving spring lead-out piece 31 and the connecting section 321 significantly reduces the height occupied by the moving spring 32, facilitating miniaturization. Additionally, the integral connection of the connecting section 321, the bent section 322, and the movable section 323 forms a single unit, improving assembly efficiency.

[0093] In one embodiment, the movable segment 323 and the spring extension piece 31 are arranged opposite to each other in the first direction D1, while the movable segment 323 and the connecting segment 321 are arranged offset in the first direction D1. The orthographic projections of the movable segment 323 and the spring extension piece 31 on a target plane have overlapping areas, while the orthographic projections of the movable segment 323 and the connecting segment 321 on the target plane do not have overlapping areas; the target plane is perpendicular to the first direction D1.

[0094] In another embodiment, the movable segment 323 and the connecting segment 321 are arranged opposite to each other in the first direction D1, while the movable segment 323 and the spring extension piece 31 are arranged offset in the first direction D1. The orthographic projections of the movable segment 323 and the connecting segment 321 on the target plane have overlapping areas, while the orthographic projections of the movable segment 323 and the spring extension piece 31 on the target plane do not have overlapping areas.

[0095] In another embodiment, the movable segment 323 and the spring extension piece 31 are arranged opposite to each other in the first direction D1, and the movable segment 323 and the connecting segment 321 are also arranged opposite to each other in the first direction D1. The orthographic projections of the movable segment 323 and the spring extension piece 31 on the target plane have overlapping areas, and the orthographic projections of the movable segment 323 and the connecting segment 321 on the target plane also have overlapping areas.

[0096] like Figure 4 As shown, the bending path of the curved segment 322 is an arc, and the central angle of this arc is θ, where 180°≤θ≤240°. For example, θ can be 180°, 190°, 200°, 210°, 220°, 230°, 240°, etc. For example, but not limited to, the bending path of the movable spring 32 can be U-shaped, M-shaped, V-shaped, etc.

[0097] Of course, in other embodiments, the bending path of the bending segment 322 can also be a non-circular curve, as long as the movable segment 323 bends in the opposite direction by means of the bending segment 322 to a position that is arranged opposite to at least one of the moving spring lead-out piece 31 and the connecting segment 321 in the first direction D1.

[0098] In one embodiment, when the coil assembly 41 is not energized, the movable section 323 is parallel to the connecting section 321.

[0099] like Figure 3 and Figure 5 As shown, the curved section 322 has at least one opening 325; the opening 325 starts from the connecting section 321 and extends along the bending direction of the curved section 322 toward the movable section 323, and the size of the opening 325 gradually increases.

[0100] In this embodiment, by providing an opening 325 on the bent section 322, and designing the size of the opening 325 to gradually increase in the direction extending from the connecting section 321 to the movable section 323, on the one hand, the setting of the opening 325 can reduce the rigidity of the bent section 322, so that the bent section 322 has sufficient flexibility to ensure the flexibility of the movable section 323; on the other hand, the size of the opening 325 is smaller at the end near the connecting section 321 and larger at the end near the movable section 323. This ensures that the end of the bent section 322 near the connecting section 321 has sufficient rigidity to prevent the bent section 322 and the movable section 323 from swaying relative to the connecting section 321 when the coil assembly 41 is not energized, and also ensures that the end of the bent section 322 near the movable section 323 has sufficient flexibility to facilitate the flexible movement of the movable section 323.

[0101] In one embodiment, the curved section 322 has a plurality of openings 325 arranged side by side along a third direction D3. For example, the number of openings 325 may be two, but is not limited thereto.

[0102] like Figure 6 and Figure 7 As shown, the movable spring 32 also has a drive section 324, which is connected to the movable section 323. A push rod 43 is connected to the drive section 324 and is used to drive the movable section 323 to move through the drive section 324, so that the movable section 323 drives the movable contact group 33 to move.

[0103] In one embodiment, the drive segment 324 is connected to the end of the movable segment 323 away from the curved segment 322. The drive segment 324 and the movable segment 323 are an integral structure.

[0104] Of course, in other embodiments, the drive segment 324 may also be connected to one side of the movable segment 323 along the third direction D3.

[0105] like Figure 6 and Figure 7 As shown, the drive section 324 includes a first section 3241 and a second section 3242. One end of the first section 3241 is connected to the end of the movable section 323 away from the curved section 322. One end of the second section 3242 is connected to the other end of the first section 3241, and the second section 3242 extends out of the side surface of the first section 3241 facing away from the magnetic circuit portion 40.

[0106] like Figure 8 and Figure 9 As shown, one end of the push rod 43 is connected to the armature assembly 42, the other end of the push rod 43 is connected to the first segment 3241, and the second segment 3242 supports the other end of the push rod 43.

[0107] In this embodiment of the application, the second segment 3242 extends from the side surface of the first segment 3241 facing away from the magnetic circuit portion 40, and the second segment 3242 supports the other end of the push rod 43, which can prevent the push rod 43 from detaching from the moving spring 32 during the reciprocating pushing and pulling of the first segment 3241.

[0108] like Figure 7 and Figure 9 As shown, the first segment 3241 includes a bending portion 3241a and a force-receiving portion 3241b. One end of the bending portion 3241a is connected to the movable segment 323, and one end of the force-receiving portion 3241b is connected to the other end of the bending portion 3241a. The other end of the force-receiving portion 3241b is connected to the second segment 3242. The other end of the push rod 43 has a slot 431, and the force-receiving portion 3241b is inserted into the slot 431.

[0109] In the embodiments of this application, the force-receiving part 3241b is inserted into the slot 431 of the push rod 43, which can further prevent the push rod 43 from disengaging from the moving spring 32.

[0110] like Figure 7As shown, the movable spring 32 is composed of two conductive sheets 32a stacked together. The two conductive sheets 32a are made of different materials, and the stiffness of one conductive sheet 32a is greater than that of the other conductive sheet 32a.

[0111] In this embodiment, the movable spring 32 is composed of two conductive sheets 32a, which reduces the number of parts, simplifies assembly, and lowers costs. Furthermore, compared to stacked conductive sheets 32a (three or more), the movable spring 32 of this application, composed of two conductive sheets 32a, is more flexible and easier to deform.

[0112] In one embodiment, one conductive sheet 32a is made of pure copper, and the other conductive sheet 32a is made of alloy copper. Pure copper improves the conductivity of the moving spring sheet 32, while alloy copper provides better rigidity.

[0113] As a modified embodiment, the lead-out portion 30a may include a connecting section 321 but not the movable spring lead-out piece 31. The connecting section 321, the bent section 322, and the movable section 323 are integrally connected to form the movable spring piece 32. The connecting section 321 is connected to the base 10, and a portion of the connecting section 321 extends out of the lower surface of the base 10.

[0114] In summary, the relays of the embodiments of this application have at least the following advantages and beneficial effects:

[0115] The relay of this application embodiment includes a moving spring 32 comprising an integrally connected connecting section 321, a bent section 322, and a movable section 323. The movable section 323 is bent in the opposite direction by the bent section 322 to a position opposite to at least one of the moving spring lead-out piece 31 and the connecting section 321 in a first direction D1. This bent section 322 provides sufficient flexibility, allowing the movable section 323 to drive the moving contact group 33 to contact or separate from the stationary contact group 20b. The bent section 322 of the moving spring 32 eliminates the need for an excessively long overall length, ensuring sufficient flexibility and saving material costs. Furthermore, the bending of the movable section 323 to a position opposite to at least one of the moving spring lead-out piece 31 and the connecting section 321 significantly reduces the height occupied by the moving spring 32, facilitating miniaturization. Additionally, the integral connection of the connecting section 321, the bent section 322, and the movable section 323 forms a single unit, improving assembly efficiency.

[0116] Furthermore, by providing an opening 325 on the bent section 322, and designing the size of the opening 325 to gradually increase in the direction extending from the connecting section 321 to the movable section 323, on the one hand, the setting of the opening 325 can reduce the rigidity of the bent section 322, so that the bent section 322 has sufficient flexibility to ensure the flexibility of the movable section 323; on the other hand, the size of the opening 325 is smaller at the end near the connecting section 321 and larger at the end near the movable section 323. This ensures that the end of the bent section 322 near the connecting section 321 has sufficient rigidity to prevent the bent section 322 and the movable section 323 from swaying relative to the connecting section 321 when the coil assembly 41 is not energized, and also ensures that the end of the bent section 322 near the movable section 323 has sufficient flexibility to facilitate the flexible movement of the movable section 323.

[0117] Furthermore, the second segment 3242 extends from the side surface of the first segment 3241 facing away from the magnetic circuit portion 40, and the second segment 3242 supports the other end of the push rod 43, thus preventing the push rod 43 from detaching from the moving spring 32 during the reciprocating pushing and pulling of the first segment 3241.

[0118] Furthermore, the force-receiving part 3241b is engaged in the slot 431 of the push rod 43, which can further prevent the push rod 43 from disengaging from the moving spring 32.

[0119] 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.

[0120] 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.

[0121] 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.

[0122] 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.

[0123] 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 by comprising: The relay comprises: a static spring part having a static contact group; a dynamic spring part comprising a leading part, a bending segment, a movable segment and a dynamic contact group, one end of the bending segment being connected with the leading part, the other end of the bending segment being integrally connected with the movable segment, the dynamic contact group being connected with the movable segment for contact or separation with the static contact group; wherein the movable segment is reversely bent to a position opposite to the leading part in a first direction by means of the bending segment, the first direction being a contact / separation direction of the dynamic contact group and the static contact group.

2. The relay according to claim 1, characterized in that The bending path of the bending segment is an arc, and the central angle of the arc is θ, 180°≤θ≤240°.

3. The relay of claim 1, wherein The dynamic spring part further has a driving segment connected with the movable segment. The relay further comprises a magnetic circuit part connected with the driving segment, the magnetic circuit part being configured to drive the movable segment to move by means of the driving segment in response to an input signal, so that the movable segment drives the dynamic contact group to move.

4. The relay according to claim 3, characterized in that The driving segment is connected with the movable segment at an end away from the bending segment.

5. The relay of claim 3, wherein The driving segment and the movable segment are in an integral structure.

6. The relay of claim 3, wherein The driving segment comprises a first segment and a second segment, one end of the first segment being connected with the movable segment, one end of the second segment being connected with the other end of the first segment, and the second segment extending from a side surface of the first segment away from the magnetic circuit part. The magnetic circuit part comprises a coil assembly, an armature assembly and a push rod, the coil assembly being magnetically coupled with the armature assembly, one end of the push rod being connected with the armature assembly, the other end of the push rod being connected with the first segment, and the second segment supporting the other end of the push rod.

7. The relay according to claim 6, characterized in that The first segment comprises a bending part and a force receiving part, one end of the bending part being connected with the movable segment, one end of the force receiving part being connected with the other end of the bending part, and the other end of the force receiving part being connected with the second segment. The other end of the push rod has a clamping groove, and the force receiving part is clamped into the clamping groove.

8. The relay of claim 1, wherein The relay further comprises a magnetic circuit part configured to drive the movable segment to move in response to an input signal, so that the movable segment drives the dynamic contact group to move. The magnetic circuit part has a coil assembly, when the coil assembly is not energized, the movable segment is parallel to the leading part.

9. The relay of claim 1, wherein The leading part comprises a dynamic spring leading sheet and a connecting segment, the connecting segment being connected with the dynamic spring leading sheet, one end of the bending segment being integrally connected with the connecting segment; the movable segment is oppositely arranged with at least one of the dynamic spring leading sheet and the connecting segment in a first direction.

10. The relay of claim 9, wherein The connecting segment, the bending segment and the movable segment constitute a dynamic spring sheet, the dynamic spring sheet is composed of two laminated conductive sheets, the two conductive sheets are made of different materials, and the rigidity of one of the conductive sheets is greater than that of the other conductive sheet.

11. The relay of claim 1, wherein The static spring part comprises a first static spring lead-out piece and a second static spring lead-out piece, the static contact group comprises a first static contact group and a second static contact group, the first static contact group is connected to the first static spring lead-out piece, and the second static contact group is connected to the second static spring lead-out piece; the movable contact group is located between the first static contact group and the second static contact group.

12. The relay of claim 1, wherein The bending section is provided with at least one opening; The opening starts from the lead-out part and extends to the movable section along the bending direction of the bending section, and the size of the opening gradually increases.

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