relay

Abstract

This application discloses a relay, including a first stationary contact assembly, a second stationary contact assembly, a moving assembly, and a blocking structure. The moving assembly includes a first moving assembly and a second moving assembly, the first moving assembly being used to contact or separate from the first stationary contact assembly, and the second moving assembly being used to contact or separate from the second stationary contact assembly. The blocking structure is configured to prevent the second moving assembly from contacting the second stationary contact assembly when the first moving assembly is in contact with the first stationary contact assembly, and to prevent the first moving assembly from contacting the first stationary contact assembly when the second moving assembly is in contact with the second stationary contact assembly.

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 consists of two sets of moving parts. When one set of moving parts moves, the relay is in a first state, and when the other set moves, the relay is in a second state. For example, the first state can be either a series or parallel connection, and the second state can be either a series or parallel connection. However, when the relay is subjected to a significant impact during operation, or when abnormal conditions such as contact sticking occur in one of the series or parallel circuits, there is a possibility that both moving parts may close simultaneously. This would cause all contacts of the relay to be closed, leading to a short circuit or even the relay exploding. Utility Model Content

[0004] This application provides a relay to solve the problem that relays in related technologies are prone to short circuits or even explosions.

[0005] The relay in this application embodiment includes: First static contact assembly and second static contact assembly; A moving component includes a first moving component and a second moving component, wherein the first moving component is used to contact or separate from the first stationary contact component, and the second moving component is used to contact or separate from the second stationary contact component; and A blocking structure is configured to block the second moving component from contacting the second stationary contact component when the first moving component contacts the first stationary contact component, and to block the first moving component from contacting the first stationary contact component when the second moving component contacts the second stationary contact component.

[0006] According to some embodiments of this application, the relay further includes a contact cavity; the blocking structure includes a seesaw, the seesaw being oscillating relative to the contact cavity, the seesaw being configured to block the second moving component from contacting the second stationary contact component when the first moving component contacts the first stationary contact component, and to block the first moving component from contacting the first stationary contact component when the second moving component contacts the second stationary contact component.

[0007] According to some embodiments of this application, the seesaw has a first force-bearing part and a second force-bearing part; When the first moving component moves toward the first stationary contact component, the first moving component pushes the seesaw to swing along the first swing direction, so that the first force-receiving part tilts upward and the second force-receiving part descends, and the second force-receiving part can stop the second moving component from moving to the position of contacting the second stationary contact component; When the second moving component moves toward the direction of the second stationary contact component, the second moving component pushes the seesaw to swing along the second swing direction, so that the second force-receiving part tilts upward and the first force-receiving part tilts downward. The first force-receiving part can stop the first moving component from moving to the position of contacting the first stationary contact component. The first swing direction is opposite to the second swing direction.

[0008] According to some embodiments of this application, the contact cavity includes a yoke plate; when the first moving component contacts the first stationary contact component, the distance between the first force-receiving part and the yoke plate is H1, and the distance between the second force-receiving part and the yoke plate is H2, where H1 > H2; when the second moving component contacts the second stationary contact component, the distance between the second force-receiving part and the yoke plate is H3, and the distance between the first force-receiving part and the yoke plate is H4, where H3 > H4.

[0009] According to some embodiments of this application, the contact cavity includes a yoke plate, and the seesaw further has a base plate, with the first force-receiving part and the second force-receiving part protruding from the side surface of the base plate facing the yoke plate.

[0010] According to some embodiments of this application, when the first moving component contacts the first stationary contact component, the second moving component contacts or separates from the second force-receiving part; when the second moving component contacts the second stationary contact component, the first moving component contacts or separates from the first force-receiving part.

[0011] According to some embodiments of this application, the first moving component includes a first stop portion, which is located on the side of the seesaw opposite to the first stationary contact component. When the first moving component contacts the first stationary contact component, the first stop portion abuts against the first force-bearing portion. The second moving component includes a second stop portion located on the side of the seesaw opposite to the second stationary contact component. When the second moving component contacts the second stationary contact component, the second stop portion abuts against the second force-bearing portion.

[0012] According to some embodiments of this application, the first moving component further includes a first push rod, a first mounting base, a first contact bracket, and a first moving contact component. The first mounting base is connected to the first push rod, the first contact bracket is mounted on the first mounting base, and the first moving contact component is mounted between the first mounting base and the first contact bracket for contacting or separating from the first stationary contact component. The first stop portion is provided on the first mounting base or the first contact bracket. The second moving component further includes a second push rod, a second mounting base, a second contact bracket, and a second moving contact component. The second mounting base is connected to the second push rod, the second contact bracket is mounted on the second mounting base, and the second moving contact component is mounted between the second mounting base and the second contact bracket for contacting or separating from the second stationary contact component. The second stop is provided on the second mounting base or the second contact bracket.

[0013] According to some embodiments of this application, the first stop portion is disposed on the first mounting base, the first mounting base has a first base and a first fixing piece, the first base is connected to the first push rod and the first fixing piece, and the first stop portion is disposed on the first base or the first fixing piece. The second stop is disposed on the second mounting base, the second mounting base has a second base and a second fixing plate, the second base is connected to the second push rod and the second fixing plate, and the second stop is disposed on the second base or the second fixing plate.

[0014] According to some embodiments of this application, the blocking structure further includes a fixing member, which is fixedly connected to the contact cavity, and the seesaw is oscillatingly connected to the fixing member.

[0015] According to some embodiments of this application, the blocking structure further includes an elastic element for providing an elastic force to the seesaw so that the seesaw can remain in a position where it is not in contact with either the first moving component or the second moving component when the relay is not energized.

[0016] According to some embodiments of this application, the fastener includes a connecting portion and two spaced-apart side portions, the connecting portion being connected between the two side portions, the seesaw being located within the space enclosed by the two side portions and the connecting portion, and the elastic element being located between the connecting portion and the seesaw.

[0017] According to some embodiments of this application, the blocking structure further includes a first limiting structure and a second limiting structure. The first limiting structure is disposed on the connecting portion, and the second limiting structure is disposed on the seesaw. The elastic member has a third limiting structure and a fourth limiting structure. The first limiting structure and the third limiting structure are mutually limiting and cooperating, and the second limiting structure and the fourth limiting structure are mutually limiting and cooperating.

[0018] According to some embodiments of this application, the first limiting structure includes two lugs, which are respectively connected to both ends of the connecting portion in the width direction and extend from the connecting portion toward the seesaw. The elastic element is a spring, and the two ends of the spring abut against the connecting part and the seesaw respectively. One end of the spring is the third limiting structure, and the other end is the fourth limiting structure. The third limiting structure is located between the two lugs. The second limiting structure protrudes from the surface of the seesaw facing the spring and is inserted into the fourth limiting structure.

[0019] According to some embodiments of this application, the elastic element is a leaf spring, and one of the first limiting structure and the third limiting structure is a first limiting protrusion and the other is a first limiting hole, with the first limiting protrusion located within the first limiting hole; The second limiting structure and the fourth limiting structure are respectively a second limiting protrusion and a second limiting hole, with the second limiting protrusion located within the second limiting hole.

[0020] According to some embodiments of this application, the blocking structure further includes a pin connecting the two sides; The contact cavity has a yoke plate, and the seesaw has a bent section located on the side of the pin facing or away from the yoke plate, and the bent section is rotatably engaged with the pin.

[0021] According to some embodiments of this application, the seesaw has two connecting lugs, which are rotatably connected to the two sides respectively.

[0022] According to some embodiments of this application, the blocking structure further includes a pin connecting the two sides, and the seesaw is rotatably connected to the pin.

[0023] According to some embodiments of this application, the relay further includes a contact cavity, the first stationary contact assembly and the second stationary contact assembly are fixedly disposed relative to the contact cavity, and the moving assembly is movably located within the contact cavity. The moving assembly is configured to switch the relay between a first state and a second state in response to an input signal. When the relay is in the first state, the first moving assembly is in contact with the first stationary contact assembly, while the second moving assembly is separated from the second stationary contact assembly. When the relay is in the second state, the second moving assembly is in contact with both the first stationary contact assembly and the second stationary contact assembly, while the first moving assembly is separated from the first stationary contact assembly.

[0024] According to some embodiments of this application, the first static contact component includes two first static contacts, the second static contact component includes two second static contacts, and the two first static contacts correspond to the two second static contacts respectively; the first moving component includes a first moving contact component, and the second moving component includes two second moving contact components. When the relay is in the first state, the first moving contact component is in contact with both of the first stationary contacts simultaneously, and the second moving contact component is separated from the second stationary contacts. When the relay is in the second state, both ends of each second moving contact component are in contact with the corresponding first stationary contact and the second stationary contact, respectively, and the first moving contact component is separated from the first stationary contact.

[0025] According to some embodiments of this application, the first static contact includes a static component and a conductive component, the conductive component being connected to the static component and extending from the static component toward the second static contact, the conductive component being used to contact the first dynamic contact assembly and the second dynamic contact assembly.

[0026] According to some embodiments of this application, the blocking structure is located between the first moving component and the second moving component.

[0027] According to some embodiments of this application, the relay further includes a contact cavity, and the blocking structure is mounted in the contact cavity; or... The relay also includes a contact cavity having a yoke plate, and the blocking structure is mounted on the yoke plate.

[0028] An embodiment of the above application has at least the following advantages or beneficial effects: The relay in this application embodiment has a blocking structure configured to block the second moving component from contacting the second stationary contact component when the first moving component contacts the first stationary contact component, and to block the first moving component from contacting the first stationary contact component when the second moving component contacts the second stationary contact component. This avoids the first moving component and the second moving component from contacting the first stationary contact component simultaneously, thereby preventing the relay from short-circuiting or even exploding due to all contacts being in a closed state.

[0029] Furthermore, the blocking structure includes a seesaw. When one of the first moving component and the second moving component moves, it can drive the seesaw to swing, thereby achieving the effect that the seesaw can block the other of the first moving component and the second moving component from moving, thus avoiding the short circuit problem caused by the simultaneous closure of the first moving component and the second moving component.

[0030] Furthermore, when one of the first and second force-bearing parts of the seesaw tilts upward, the other tilts downward. By setting up a seesaw, the first and second moving components can be controlled simultaneously, which has the advantages of simple structure and space saving.

[0031] Furthermore, the first and second force-bearing parts protrude from the side surface of the substrate facing the yoke plate, reducing the contact area between the first stop and the seesaw and between the second stop and the seesaw, thereby preventing the generation of scrapes due to excessive friction between the first stop and the seesaw and between the second stop and the seesaw.

[0032] Furthermore, the elastic element and the connecting part are limited by the first limiting structure and the third limiting structure, and the elastic element and the seesaw are limited by the second limiting structure and the fourth limiting structure, which can prevent the elastic element from coming out of the connecting part and the seesaw. Attached Figure Description

[0033] 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.

[0034] Figure 1 This is a side view of a relay according to an embodiment of this application.

[0035] Figure 2 yes Figure 1 A schematic diagram of its decomposition.

[0036] Figure 3 It is along Figure 1 A sectional view after being cut along the AA section line.

[0037] Figure 4 yes Figure 1 Another exploded diagram.

[0038] Figure 5 It is a three-dimensional schematic diagram of the assembled yoke plate, first moving component, second moving component and static contact component.

[0039] Figure 6 yes Figure 5 A side view diagram taken along direction B.

[0040] Figure 7 It is along Figure 6 The cross-sectional view after being cut by the CC section line shows that the first moving contact component is separated from the first stationary contact component, and the second moving contact component is separated from the second stationary contact component.

[0041] Figure 8 It is along Figure 6 The sectional view after being cut by the CC section line, at which point the relay is in the first state.

[0042] Figure 9 It is along Figure 6 The sectional view after being cut by the CC section line shows the relay in its second state.

[0043] Figure 10 This is a side view of the blocking structure according to the first embodiment of this application.

[0044] Figure 11 It is along Figure 10 A sectional view after cutting along the DD section line.

[0045] Figure 12 yes Figure 10 A schematic diagram of its breakdown.

[0046] Figure 13 This is a three-dimensional schematic diagram of the blocking structure according to the second embodiment of this application.

[0047] Figure 14 This is a side view of the blocking structure according to the second embodiment of this application.

[0048] Figure 15 It is along Figure 14 A sectional view after cutting along the EE section line.

[0049] Figure 16 This is an exploded view of the blocking structure according to the second embodiment of this application.

[0050] Figure 17 This is a three-dimensional schematic diagram of the blocking structure according to the third embodiment of this application.

[0051] Figure 18 This is a side view of the blocking structure according to the third embodiment of this application.

[0052] Figure 19 It is along Figure 18 A sectional view after being cut along the FF section line.

[0053] Figure 20 This is an exploded view of the blocking structure according to the third embodiment of this application.

[0054] Figure 21 This is a three-dimensional schematic diagram of the blocking structure according to the fourth embodiment of this application.

[0055] Figure 22 This is an exploded view of the blocking structure according to the fourth embodiment of this application.

[0056] Figure 23 This is a perspective view of the first stop portion located on the first mounting base of the first moving assembly.

[0057] Figure 24 This is a perspective view of the first contact support of the first moving component, where the first stop is located. Detailed Implementation

[0058] 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.

[0059] 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.

[0060] like Figures 1 to 4As shown, the relay of this embodiment includes a housing 10, a contact cavity 20, a stationary contact assembly 30, a moving assembly 40, and a magnetic circuit portion 60. The contact cavity 20, the stationary contact assembly 30, the moving assembly 40, and the magnetic circuit portion 60 are disposed within the housing 10. The stationary contact assembly 30 is mounted on the contact cavity 20, and a portion of the moving assembly 40 is located within the contact chamber 23 enclosed by the contact cavity 20 and is movable relative to the contact cavity 20. The magnetic circuit portion 60 is configured to drive the moving assembly 40 to move in response to an input signal, so that the moving assembly 40 contacts or separates from the stationary contact assembly 30, thereby switching the relay between a first state and a second state.

[0061] The term "contact" refers to direct or indirect contact between the moving component 40 and the stationary contact component 30, allowing current to flow between them; the term "separation" refers to the disconnection between the moving component 40 and the stationary contact component 30, preventing current from flowing between them.

[0062] In one embodiment, in the first state and the second state, one is an external circuit controlled by a relay in parallel, and the other is an external circuit controlled by a relay in series.

[0063] Of course, in other embodiments, one of the first state and the second state can be a closed state and the other is an open state.

[0064] The following explanation will be based on the example where the external circuit controlled by the relay is in series in the first state and in parallel in the second state.

[0065] As an example, the outer casing 10 may include a first casing 11 and a second casing 12, which are connected to form a cavity for accommodating the contact cavity 20, the static contact assembly 30, the moving assembly 40, and the magnetic circuit portion 60. The shape of the first casing 11 and the second casing 12 connected together can be a cuboid, a cylinder, etc. In the embodiments of this application, the first casing 11 and the second casing 12 are connected to form a hollow cuboid, but this is not a limitation.

[0066] In one embodiment, both the first shell 11 and the second shell 12 are cuboid in shape and each has an opening on one side. The opening of the first shell 11 is opposite to the opening of the second shell 12, and the first shell 11 and the second shell 12 are fastened together to form a cavity for accommodating the cavity.

[0067] Of course, in other embodiments, the first shell 11 can be a flat plate structure, and the second shell 12 can be a cuboid shape with an opening, forming a cavity after the first shell 11 and the second shell 12 are fastened together.

[0068] like Figure 2 and Figure 3As shown, the contact cavity 20 includes an insulating cover 21 and a yoke plate 22. The insulating cover 21 covers one side surface of the yoke plate 22 in the thickness direction, and the insulating cover 21 and the yoke plate 22 form a contact cavity 23. The magnetic circuit portion 60 is located on the side of the yoke plate 22 facing away from the insulating cover 21.

[0069] In one embodiment, the insulating cover 21 may include a ceramic cover 211 and a frame plate 212. The ceramic cover 211 is made of ceramic material and is connected to the yoke plate 22 via the frame plate 212. The frame plate 212 may be a ring-shaped metal component, for example, made of an iron-nickel alloy. One end of the frame plate 212 is connected to the opening edge of the ceramic cover 211, for example, by laser welding, brazing, resistance welding, or adhesive bonding. The other end of the frame plate 212 is connected to the yoke plate 22, for example, by laser welding, brazing, resistance welding, or adhesive bonding.

[0070] like Figure 2 and Figure 3 As shown, the static contact assembly 30 includes a first static contact assembly 31 and a second static contact assembly 32, both of which are mounted on the ceramic cover 211.

[0071] In one embodiment, the first static contact assembly 31 has two first static contacts 311, and the second static contact assembly 32 has two second static contacts 321. Both the first static contacts 311 and the second static contacts 321 are mounted on a ceramic cover 211. The two first static contacts 311 are arranged at a distance along a first direction D1, and the two second static contacts 321 are also arranged at a distance along the first direction D1. The positions of the two first static contacts 311 correspond to the positions of the two second static contacts 321 along a third direction D3.

[0072] Among them, the direction of motion of the moving component 40 is the second direction D2, and the first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other.

[0073] The yoke plate 22 has a first through hole 221 and a second through hole 222. The first through hole 221 and the second through hole 222 penetrate the yoke plate 22 along the second direction D2, and both the first through hole 221 and the second through hole 222 communicate with the contact chamber 23. The moving assembly 40 includes a first moving assembly 40a and a second moving assembly 40b. The first moving assembly 40a is movably disposed in the first through hole 221, and the second moving assembly 40b is movably disposed in the second through hole 222.

[0074] like Figure 3As shown, the first moving assembly 40a includes a first push rod 411, a first mounting base 412, a first contact bracket 413, and a first moving contact assembly 415. The first push rod 411 is movably inserted into the first through hole 221. The first mounting base 412, the first contact bracket 413, and the first moving contact assembly 415 are located in the contact chamber 23. The first mounting base 412 is connected to the first push rod 411, the first contact bracket 413 is connected to the first mounting base 412, and the first moving contact assembly 415 is installed between the first mounting base 412 and the first contact bracket 413. The first moving contact assembly 415 is used to contact or separate from the first stationary contact assembly 31.

[0075] The second moving assembly 40b includes a second push rod 421, a second mounting base 422, a second contact bracket 423, and two second moving contact assemblies 425. The second push rod 421 is movably inserted into the second through hole 222. The second mounting base 422, the second contact bracket 423, and the second moving contact assembly 425 are located in the contact chamber 23. The second mounting base 422 is connected to the second push rod 421, and the second contact bracket 423 is connected to the second mounting base 422. The second moving contact assembly 425 is installed between the second mounting base 422 and the second contact bracket 423. The second moving contact assembly 425 is used to simultaneously contact or separate from the first stationary contact assembly 31 and the second stationary contact assembly 32.

[0076] The magnetic circuit portion 60 includes a first magnetic circuit portion 61 and a second magnetic circuit portion 62. The first magnetic circuit portion 61 is located on the side of the yoke plate 22 facing away from the insulating cover 21 and is connected to the first push rod 411. The first magnetic circuit portion 61 is configured to drive the first push rod 411 to move in response to a first input signal, causing the first push rod 411 to contact or separate from the first moving contact assembly 415 and the first stationary contact assembly 31. The second magnetic circuit portion 62 is located on the side of the yoke plate 22 facing away from the insulating cover 21 and is connected to the second push rod 421. The second magnetic circuit portion 62 is configured to drive the second push rod 421 to move in response to a second input signal, causing the second push rod 421 to contact or separate from the second moving contact assembly 425 and the second stationary contact assembly 32.

[0077] The first magnetic circuit portion 61 can be a magnetic holding structure or a non-magnetic holding structure, and the second magnetic circuit portion 62 can be a magnetic holding structure or a non-magnetic holding structure.

[0078] When the external circuit controlled by the relay is in series, the first moving component 40a is in contact with the first stationary contact component 31, while the second moving component 40b is separated from the second stationary contact component 32. When the external circuit controlled by the relay is in parallel, the second moving component 40b is in contact with both the first stationary contact component 31 and the second stationary contact component 32, while the first moving component 40a is separated from the first stationary contact component 31.

[0079] In the embodiments of this application, when the external circuit controlled by the relay is in a series connection state, both ends of the first moving contact component 415 are simultaneously in contact with the two first stationary contacts 311, and the second moving contact component 425 is separated from the second stationary contact 321, so that the two first stationary contacts 311 are connected in series through the first moving contact component 415. When the external circuit controlled by the relay is in a parallel connection state, both ends of each second moving contact component 425 are in contact with the corresponding first stationary contact 311 and second stationary contact 321, and the first moving contact component 415 is separated from the first stationary contact 311, so that the two sets of corresponding first stationary contact components 31 and second stationary contact components 32 are connected in parallel.

[0080] Of course, in other embodiments, when the relay is in the first state, the two ends of the first moving contact component 415 are in contact with the two first stationary contacts 311 respectively, and the two ends of the second moving contact component 425 are separated from the two second stationary contacts 321; when the relay is in the second state, the two ends of the second moving contact component 425 are in contact with the two second stationary contacts 321 respectively, and the two ends of the first moving contact component 415 are separated from the two first stationary contacts 311.

[0081] like Figure 5 As shown, the first stationary contact 311 includes a stationary component 311a and a conductive component 311b. The conductive component 311b is connected to the stationary component 311a and extends from the stationary component 311a toward the second stationary contact 321. The conductive component 311b is used to contact the first moving contact assembly 415 and the second moving contact assembly 425.

[0082] In one embodiment, the conductive element 311b is connected to the side surface of the stationary element 311a facing the yoke plate 22. When the external circuit controlled by the relay is in series, the first moving contact assembly 415 contacts the conductive element 311b; when the external circuit controlled by the relay is in parallel, one end of each of the two second moving contact assemblies 425 contacts the two conductive elements 311b, and the other end of each of the two second moving contact assemblies 425 contacts the two second stationary contacts 321.

[0083] Of course, in other embodiments, the conductive element 311b may also be connected to the outer peripheral side of the stationary element 311a. When the external circuit controlled by the relay is in series, the first moving contact assembly 415 is in contact with the stationary element 311a; when the external circuit controlled by the relay is in parallel, one end of each of the two second moving contact assemblies 425 is in contact with the two conductive elements 311b, and the other end of each of the two second moving contact assemblies 425 is in contact with the two second stationary contacts 321.

[0084] In one implementation, such as Figure 5As shown, the first movable contact assembly 415 has one or more first movable contact elements 4151. When the first movable contact assembly 415 has multiple first movable contact elements 4151, the multiple first movable contact elements 4151 are arranged side by side along a third direction D3. Each second movable contact assembly 425 has one or more second movable contact elements 4251. When the second movable contact assembly 425 has multiple second movable contact elements 4251, the multiple second movable contact elements 4251 are arranged side by side along a first direction D1.

[0085] like Figures 6 to 9 As shown, the relay in this embodiment of the application further includes a blocking structure 50, which is disposed within the contact chamber 23 and located between the first moving component 40a and the second moving component 40b. The blocking structure 50 is configured to prevent the second moving component 40b from contacting the second stationary contact component 32 when the first moving component 40a contacts the first stationary contact component 31, and to prevent the first moving component 40a from contacting the first stationary contact component 31 when the second moving component 40b contacts the second stationary contact component 32.

[0086] The relay in this embodiment of the application provides a blocking structure 50 in the contact cavity 20. The blocking structure 50 is configured to prevent the second moving component 40b from contacting the second stationary contact component 32 when the first moving component 40a contacts the first stationary contact component 31, and to prevent the first moving component 40a from contacting the first stationary contact component 31 when the second moving component 40b contacts the second stationary contact component 32. This avoids the first moving component 40a and the second moving component 40b from contacting the first stationary contact component 31 and the second stationary contact component 32 at the same time, thereby avoiding the problem of short circuit or even explosion caused by all contacts being in a closed state.

[0087] In one embodiment, the blocking structure 50 can be mounted on the yoke plate 22. Of course, in other embodiments, the blocking structure 50 can also be mounted on the insulating cover 21.

[0088] like Figures 7 to 9 As shown, the blocking structure 50 includes a seesaw 51, which is swayable relative to the contact cavity 20. The seesaw 51 has a first force-receiving part 511 and a second force-receiving part 512. When the relay is in the first state, the first moving component 40a is in contact with the first force-receiving part 511, and the second force-receiving part 512 stops the second moving component 40b from moving to the position of contacting the second stationary contact component 32. When the relay is in the second state, the second moving component 40b is in contact with the second force-receiving part 512, and the first force-receiving part 511 stops the first moving component 40a from moving to the position of contacting the first stationary contact component 31.

[0089] In one embodiment, when the relay is in the first state, the second moving component 40b is in contact with or separates from the second force-receiving part 512; when the relay is in the second state, the first moving component 40a is in contact with or separates from the first force-receiving part 511.

[0090] In detail, when the relay is in the first state and the second moving component 40b is in contact with the second force receiving part 512, the second force receiving part 512 can block the movement of the second moving component 40b; when the relay is in the first state and the second moving component 40b is separated from the second force receiving part 512, the second moving component 40b can move toward the direction of the second stationary contact component 32, but when the second moving component 40b moves to the position of contacting the second force receiving part 512, the second force receiving part 512 can block the second moving component 40b from continuing to move.

[0091] Similarly, when the relay is in the second state and the first moving component 40a is in contact with the first force receiving part 511, the first force receiving part 511 can block the movement of the first moving component 40a; when the relay is in the second state and the first moving component 40a is separated from the first force receiving part 511, the first moving component 40a can move toward the direction of the first stationary contact component 31, but when the first moving component 40a moves to the position of contacting the first force receiving part 511, the first force receiving part 511 can block the first moving component 40a from continuing to move.

[0092] The first moving assembly 40a includes a first stop 414, located on the side of the seesaw 51 opposite to the first stationary contact assembly 31. When the relay is in the first state, the first stop 414 abuts against the first force-bearing part 511. The second moving assembly 40b includes a second stop 424, located on the side of the seesaw 51 opposite to the second stationary contact assembly 32. When the relay is in the second state, the second stop 424 abuts against the second force-bearing part 512. The first force-bearing part 511 and the first stop 414 have overlapping first projections on a target plane, and the second force-bearing part 512 and the second stop 424 have overlapping second projections on the target plane. The target plane is perpendicular to the second direction D2.

[0093] like Figure 8 and Figure 9As shown, when the relay switches from the second state to the first state, the first moving component 40a drives the seesaw 51 to swing along the first swing direction D4, so that the first force-receiving part 511 moves away from the yoke plate 22, while the second force-receiving part 512 moves closer to the yoke plate 22; when the relay switches from the first state to the second state, the second moving component 40b drives the seesaw 51 to swing along the second swing direction D5, so that the second force-receiving part 512 moves away from the yoke plate 22, while the first force-receiving part 511 moves closer to the yoke plate 22; the first swing direction D4 is opposite to the second swing direction D5.

[0094] In the embodiments of this application, when one of the first moving component 40a and the second moving component 40b moves, it can drive the seesaw 51 to swing, thereby achieving the effect that the seesaw 51 can block the other moving component 40a and the second moving component 40b, avoiding the short circuit problem caused by the simultaneous closure of the first moving component 40a and the second moving component 40b.

[0095] like Figure 8 As shown, when the relay is in the first state, the distance between the first force-receiving part 511 and the yoke plate 22 is H1, and the distance between the second force-receiving part 512 and the yoke plate 22 is H2, where H1 > H2.

[0096] like Figure 9 As shown, when the relay is in the second state, the distance between the second force-receiving part 512 and the yoke plate 22 is H3, and the distance between the first force-receiving part 511 and the yoke plate 22 is H4, where H3 > H4.

[0097] In the embodiments of this application, when one of the first force-receiving part 511 and the second force-receiving part 512 of the seesaw 51 tilts upward, the other tilts downward. By setting a seesaw 51, the first moving component 40a and the second moving component 40b can be controlled simultaneously, which has the advantages of simple structure and space saving.

[0098] like Figures 10 to 12 As shown, the blocking structure 50 also includes a fixing member 53, which is fixedly connected to the contact cavity 20, and the seesaw 51 is oscillatingly connected to the fixing member 53.

[0099] In one embodiment, the fastener 53 can be fixedly connected to the yoke plate 22, or fixedly connected to the insulating cover 21, or the fastener 53 can be fixedly connected to both the yoke plate 22 and the insulating cover 21.

[0100] The blocking structure 50 also includes an elastic element 54, which provides an elastic force to the seesaw 51 so that the seesaw 51 can remain in a position where it is not in contact with either the first moving component 40a or the second moving component 40b when the relay is not energized.

[0101] In this context, "unenergized" means that the relay coil is not energized and is in its natural position when it is in an unexcited state.

[0102] The fixing member 53 includes a fixing part 533, a connecting part 531, and two spaced-apart side parts 532. The fixing part 533 is fixedly connected to the yoke plate 22. One end of each side part 532 is connected to the fixing part 533, and the other end is connected to the connecting part 531. The seesaw 51 is located within the space enclosed by the two side parts 532 and the connecting part 531. The elastic member 54 is located between the connecting part 531 and the seesaw 51.

[0103] In one embodiment, the elastic element 54 is a spring 54a, one end of which abuts against the connecting portion 531, and the other end of which abuts against the seesaw 51.

[0104] like Figure 11 and Figure 12 As shown, the seesaw 51 has a base plate 513 and two connecting ears 514, which are rotatably connected to two sides 532 respectively. A first force-bearing part 511 and a second force-bearing part 512 protrude from the surface of the base plate 513 facing the yoke plate 22.

[0105] In the embodiments of this application, the first force-receiving part 511 and the second force-receiving part 512 protrude from the side surface of the substrate 513 facing the yoke plate 22, reducing the contact area between the first stop part 414 and the seesaw 51 and the second stop part 424 and the seesaw 51, thereby avoiding the generation of scraping due to large friction between the first stop part 414 and the seesaw 51 and between the second stop part 424 and the seesaw 51.

[0106] In one embodiment, the first force-receiving part 511 and the second force-receiving part 512 may be hemispherical, but are not limited thereto.

[0107] like Figure 11 and Figure 12 As shown, the blocking structure 50 also includes a first limiting structure 55 and a second limiting structure 56. The first limiting structure 55 is provided on the connecting part 531, and the second limiting structure 56 is provided on the seesaw 51. The elastic member 54 has a third limiting structure 541 and a fourth limiting structure 542. The first limiting structure 55 and the third limiting structure 541 are in a limiting cooperation, and the second limiting structure 56 and the fourth limiting structure 542 are in a limiting cooperation.

[0108] In the embodiments of this application, the elastic member 54 and the connecting part 531 are limited and engaged by the first limiting structure 55 and the third limiting structure 541, and the elastic member 54 and the seesaw 51 are limited and engaged by the second limiting structure 56 and the fourth limiting structure 542, which can prevent the elastic member 54 from coming out of the connecting part 531 and the seesaw 51.

[0109] like Figure 11 and Figure 12 As shown, the first limiting structure 55 includes two lugs 551, which are respectively connected to the two ends of the connecting part 531 in the width direction and extend from the connecting part 531 toward the seesaw 51; the two ends of the spring 54a abut against the connecting part 531 and the seesaw 51 respectively, one end of the spring 54a is the third limiting structure 541, and the other end is the fourth limiting structure 542. The third limiting structure 541 is located between the two lugs 551, and the second limiting structure 56 protrudes from the surface of the seesaw 51 facing the spring 54a and is inserted into the fourth limiting structure 542.

[0110] like Figures 13 to 16 As shown, the similarities between the blocking structure 50 of the second embodiment and the blocking structure 50 of the first embodiment will not be repeated here. The differences are as follows: The blocking structure 50 of this embodiment includes a seesaw 51, a fixing member 53, a pin 57, and an elastic member 54. The pin 57 is connected between the two sides 532 of the fixing member 53, and the seesaw 51 is rotatably connected to the pin 57. The elastic member 54 is a leaf spring 54b. One of the first limiting structure 55 and the third limiting structure 541 is a first limiting protrusion 552 and the other is a first limiting hole 5411, with the first limiting protrusion 552 confined within the first limiting hole 5411. One of the second limiting structure 56 and the fourth limiting structure 542 is a second limiting protrusion 561 and the other is a second limiting hole 5421, with the second limiting protrusion 561 confined within the second limiting hole 5421.

[0111] In one embodiment, the first limiting structure 55 is a first limiting protrusion 552, and the third limiting structure 541 is a first limiting hole 5411. The first limiting protrusion 552 protrudes from the connecting portion 531, and the first limiting hole 5411 is formed on the leaf spring 54b. The second limiting structure 56 is a second limiting protrusion 561, and the fourth limiting structure 542 is a second limiting hole 5421. The seesaw 51 is provided with two second limiting protrusions 561, which are arranged at intervals along a third direction D3. Both ends of the leaf spring 54b have second limiting holes 5421, and the two second limiting protrusions 561 are respectively confined within the two second limiting holes 5421.

[0112] like Figures 17 to 20 As shown, the similarities between the blocking structure 50 of the third embodiment and the blocking structure 50 of the second embodiment will not be repeated here. The differences are as follows: The seesaw 51 has a bent section 5131, which is located on the side of the pin 57 facing away from the yoke plate 22, and the bent section 5131 is rotatably engaged with the pin 57.

[0113] like Figure 21 and Figure 22 As shown, the similarities between the blocking structure 50 of the fourth embodiment and the blocking structure 50 of the third embodiment will not be repeated here. The differences are as follows: The fixing part 533 is connected to the connecting part 531. The seesaw 51 has a bent section 5131, which is located on the side of the pin 57 facing the yoke plate 22, and the bent section 5131 is rotatably engaged with the pin 57.

[0114] like Figure 23 As shown, the first stop 414 can be provided on the first mounting base 412 of the first moving assembly 40a. Similarly, the second stop 424 can be provided on the second mounting base 422 of the second moving assembly 40b.

[0115] like Figure 24 As shown, the first stop 414 can also be provided on the first contact support 413 of the first moving assembly 40a. Similarly, the second stop 424 can be provided on the second contact support 423 of the second moving assembly 40b.

[0116] Please return to the reference. Figure 3 The first mounting base 412 has a first base 4121 and a first fixing piece 4122. The first base 4121 is made of plastic material and is integrally connected to the first push rod 411 and the first fixing piece 4122. When the first stop 414 is provided on the first mounting base 412, the first stop 414 can be provided on the first base 4121 or the first fixing piece 4122.

[0117] The second mounting base 422 has a second base 4221 and a second fixing piece 4222. The second base 4221 is made of plastic material and is integrally connected to the second push rod 421 and the second fixing piece 4222. When the second stop 424 is provided on the second mounting base 422, the second stop 424 can be provided on the second base 4221 or the second fixing piece 4222.

[0118] In summary, the relays of the embodiments of this application have at least the following advantages and beneficial effects: The relay in this embodiment of the application provides a blocking structure 50 in the contact cavity 20. The blocking structure 50 is configured to prevent the second moving component 40b from contacting the second stationary contact component 32 when the first moving component 40a contacts the first stationary contact component 31, and to prevent the first moving component 40a from contacting the first stationary contact component 31 when the second moving component 40b contacts the second stationary contact component 32. This avoids the first moving component 40a and the second moving component 40b from contacting the first stationary contact component 31 and the second stationary contact component 32 at the same time, thereby avoiding the problem of short circuit or even explosion caused by all contacts being in a closed state.

[0119] Furthermore, the blocking structure 50 includes a seesaw 51. When one of the first moving component 40a and the second moving component 40b moves, it can drive the seesaw 51 to swing, thereby achieving the effect that the seesaw 51 can block the other of the first moving component 40a and the second moving component 40b from moving, thus avoiding the short circuit problem caused by the simultaneous closure of the first moving component 40a and the second moving component 40b.

[0120] Furthermore, when one of the first force-bearing part 511 and the second force-bearing part 512 of the seesaw 51 tilts upward, the other tilts downward. By setting up a seesaw 51, the first moving component 40a and the second moving component 40b can be controlled simultaneously, which has the advantages of simple structure and space saving.

[0121] Furthermore, the first force-bearing part 511 and the second force-bearing part 512 protrude from the side surface of the substrate 513 facing the yoke plate 22, reducing the contact area between the first stop part 414 and the seesaw 51 and the second stop part 424 and the seesaw 51, thereby avoiding the generation of scraping due to large friction between the first stop part 414 and the seesaw 51 and between the second stop part 424 and the seesaw 51.

[0122] Furthermore, the elastic member 54 is limited and engaged with the connecting part 531 by the first limiting structure 55 and the third limiting structure 541, and the elastic member 54 is limited and engaged with the seesaw 51 by the second limiting structure 56 and the fourth limiting structure 542, which can prevent the elastic member 54 from coming off between the connecting part 531 and the seesaw 51.

[0123] 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.

[0124] 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.

[0125] 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.

[0126] 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.

[0127] 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: First static contact assembly and second static contact assembly; The moving component includes a first moving component and a second moving component, wherein the first moving component is used to contact or separate from the first stationary contact component, and the second moving component is used to contact or separate from the second stationary contact component; as well as A blocking structure is configured to block the second moving component from contacting the second stationary contact component when the first moving component contacts the first stationary contact component, and to block the first moving component from contacting the first stationary contact component when the second moving component contacts the second stationary contact component.

2. The relay according to claim 1, characterized in that, The relay further includes a contact cavity; the blocking structure includes a seesaw, which is oscillating relative to the contact cavity, and the seesaw is configured to block the second moving component from contacting the second stationary contact component when the first moving component contacts the first stationary contact component, and to block the first moving component from contacting the first stationary contact component when the second moving component contacts the second stationary contact component.

3. The relay according to claim 2, characterized in that, The seesaw has a first force-bearing part and a second force-bearing part; When the first moving component moves toward the first stationary contact component, the first moving component pushes the seesaw to swing along the first swing direction, so that the first force-receiving part tilts upward and the second force-receiving part descends, and the second force-receiving part can stop the second moving component from moving to the position of contacting the second stationary contact component; When the second moving component moves toward the direction of the second stationary contact component, the second moving component pushes the seesaw to swing along the second swing direction, so that the second force-receiving part tilts upward and the first force-receiving part tilts downward. The first force-receiving part can stop the first moving component from moving to the position of contacting the first stationary contact component. The first swing direction is opposite to the second swing direction.

4. The relay according to claim 3, characterized in that, The contact cavity includes a yoke plate; when the first moving component contacts the first stationary contact component, the distance between the first force-receiving part and the yoke plate is H1, and the distance between the second force-receiving part and the yoke plate is H2, where H1 > H2; when the second moving component contacts the second stationary contact component, the distance between the second force-receiving part and the yoke plate is H3, and the distance between the first force-receiving part and the yoke plate is H4, where H3 > H4.

5. The relay according to claim 3, characterized in that, The contact cavity includes a yoke plate, and the seesaw also has a base plate, with the first force-receiving part and the second force-receiving part protruding from the side surface of the base plate facing the yoke plate.

6. The relay according to claim 3, characterized in that, When the first moving component contacts the first stationary contact component, the second moving component contacts or separates from the second force-receiving part; when the second moving component contacts the second stationary contact component, the first moving component contacts or separates from the first force-receiving part.

7. The relay according to claim 3, characterized in that, The first moving component includes a first stop portion, which is located on the side of the seesaw opposite to the first stationary contact component. When the first moving component contacts the first stationary contact component, the first stop portion abuts against the first force-bearing portion. The second moving component includes a second stop portion located on the side of the seesaw opposite to the second stationary contact component. When the second moving component contacts the second stationary contact component, the second stop portion abuts against the second force-bearing portion.

8. The relay according to claim 7, characterized in that, The first moving assembly further includes a first push rod, a first mounting base, a first contact bracket, and a first moving contact assembly. The first mounting base is connected to the first push rod, the first contact bracket is mounted on the first mounting base, and the first moving contact assembly is mounted between the first mounting base and the first contact bracket for contacting or separating from the first stationary contact assembly. The first stop portion is provided on the first mounting base or the first contact bracket. The second moving component further includes a second push rod, a second mounting base, a second contact bracket, and a second moving contact component. The second mounting base is connected to the second push rod, the second contact bracket is mounted on the second mounting base, and the second moving contact component is mounted between the second mounting base and the second contact bracket for contacting or separating from the second stationary contact component. The second stop is provided on the second mounting base or the second contact bracket.

9. The relay according to claim 8, characterized in that, The first stop portion is disposed on the first mounting base, the first mounting base has a first base and a first fixing piece, the first base is connected to the first push rod and the first fixing piece, and the first stop portion is disposed on the first base or the first fixing piece; The second stop is disposed on the second mounting base, the second mounting base has a second base and a second fixing plate, the second base is connected to the second push rod and the second fixing plate, and the second stop is disposed on the second base or the second fixing plate.

10. The relay according to claim 2, characterized in that, The blocking structure also includes a fixing member, which is fixedly connected to the contact cavity, and the seesaw is oscillatingly connected to the fixing member.

11. The relay according to claim 10, characterized in that, The blocking structure also includes an elastic element for providing an elastic force to the seesaw so that the seesaw can remain in a position where it is not in contact with either the first moving component or the second moving component when the relay is not energized.

12. The relay according to claim 11, characterized in that, The fastener includes a connecting portion and two spaced-apart side portions, the connecting portion being connected between the two side portions, the seesaw being located within the space enclosed by the two side portions and the connecting portion, and the elastic element being located between the connecting portion and the seesaw.

13. The relay according to claim 12, characterized in that, The blocking structure further includes a first limiting structure and a second limiting structure. The first limiting structure is disposed at the connecting part, and the second limiting structure is disposed at the seesaw. The elastic element has a third limiting structure and a fourth limiting structure. The first limiting structure and the third limiting structure are mutually limiting and cooperating, and the second limiting structure and the fourth limiting structure are mutually limiting and cooperating.

14. The relay according to claim 13, characterized in that, The first limiting structure includes two lugs, which are respectively connected to both ends of the connecting part in the width direction and extend from the connecting part toward the seesaw. The elastic element is a spring, and the two ends of the spring abut against the connecting part and the seesaw respectively. One end of the spring is the third limiting structure, and the other end is the fourth limiting structure. The third limiting structure is located between the two lugs. The second limiting structure protrudes from the surface of the seesaw facing the spring and is inserted into the fourth limiting structure.

15. The relay according to claim 13, characterized in that, The elastic element is a leaf spring, and one of the first limiting structure and the third limiting structure is a first limiting protrusion and the other is a first limiting hole. The first limiting protrusion is limited to the first limiting hole. The second limiting structure and the fourth limiting structure are respectively a second limiting protrusion and a second limiting hole, with the second limiting protrusion located within the second limiting hole.

16. The relay according to claim 12, characterized in that, The blocking structure also includes a pin that connects the two sides; The contact cavity has a yoke plate, and the seesaw has a bent section located on the side of the pin facing or away from the yoke plate, and the bent section is rotatably engaged with the pin.

17. The relay according to claim 12, characterized in that, The seesaw has two connecting lugs, which are rotatably connected to the two sides respectively.

18. The relay according to claim 12, characterized in that, The blocking structure also includes a pin connecting the two sides, and the seesaw is rotatably connected to the pin.

19. The relay according to any one of claims 1-18, characterized in that, The relay further includes a contact cavity, the first stationary contact assembly and the second stationary contact assembly are fixedly disposed relative to the contact cavity, the moving assembly is movably located within the contact cavity, and the moving assembly is configured to switch the relay between a first state and a second state in response to an input signal; When the relay is in the first state, the first moving component is in contact with the first stationary contact component, while the second moving component is separated from the second stationary contact component; when the relay is in the second state, the second moving component is in contact with both the first stationary contact component and the second stationary contact component, while the first moving component is separated from the first stationary contact component.

20. The relay according to claim 19, characterized in that, The first static contact component includes two first static contacts, and the second static contact component includes two second static contacts, with the two first static contacts corresponding to the two second static contacts respectively; the first moving component includes a first moving contact component, and the second moving component includes two second moving contact components. When the relay is in the first state, the first moving contact component is in contact with both of the first stationary contacts simultaneously, and the second moving contact component is separated from the second stationary contacts. When the relay is in the second state, both ends of each second moving contact component are in contact with the corresponding first stationary contact and the second stationary contact, respectively, and the first moving contact component is separated from the first stationary contact.

21. The relay according to claim 20, characterized in that, The first static contact includes a static component and a conductive component. The conductive component is connected to the static component and extends from the static component toward the second static contact. The conductive component is used to contact the first moving contact assembly and the second moving contact assembly.

22. The relay according to any one of claims 1-18, characterized in that, The blocking structure is located between the first moving component and the second moving component.

23. The relay according to any one of claims 1-18, characterized in that, The relay further includes a contact cavity, and the blocking structure is mounted in the contact cavity; or... The relay also includes a contact cavity having a yoke plate, and the blocking structure is mounted on the yoke plate.

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