Magnetic latching relay

Abstract

The invention belongs to the technical field of low-voltage electric appliances, and discloses a magnetic latching relay which comprises a shell provided with a partition plate, and the partition plate divides the shell into a first cavity and a second cavity. A first electromagnetic assembly and a first movable contact piece which are connected are arranged in the first cavity, a second electromagnetic assembly and a second movable contact piece which are connected are arranged in the second cavity, and the partition plate is provided with a static contact piece. The static contact piece is located between the two movable contact pieces, the first electromagnetic assembly is arranged on the side, back to the static contact piece, of the first movable contact piece, and the second electromagnetic assembly is arranged on the side, back to the static contact piece, of the second movable contact piece. The first movable contact piece is driven by the first electromagnetic assembly to make contact with or be separated from the corresponding first contact on the static contact piece through the second contact. The second movable contact piece is driven by the second electromagnetic assembly to make contact with or be separated from the corresponding first contact on the static contact piece through the second contact. The two electromagnetic assemblies share one static contact piece, the scene that two relays need to be used at the same time and need to be connected and disconnected respectively without mutual influence can be met, and the size of the shell can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of low-voltage electrical appliances, and in particular to a magnetic latching relay. Background Art

[0002] Smart meters with features like remote control and remote billing are gradually replacing conventional meters. Relays, such as latching relays, are widely used to automatically connect and disconnect circuits. A latching relay's normally closed or normally open state relies entirely on a permanent magnet, and its switching is triggered by a pulsed electrical signal of a certain width.

[0003] In some situations, two or more latching relays must be used simultaneously, each requiring independent switching without affecting the other. Conventional solutions use two relays for separate control, which occupies more mounting space and is costly. Furthermore, while some latching relays have two internal main circuits, they can only control both circuits simultaneously, rendering them incapable of switching independently.

[0004] Therefore, there is an urgent need for a magnetic latching relay to solve the above problems existing in the prior art. Summary of the Invention

[0005] The object of the present invention is to provide a magnetic latching relay that can meet the needs of scenarios where two or more relays need to be used simultaneously and are required to be switched on and off separately without affecting each other, thereby reducing the occupied cavity and reducing costs.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A magnetic latching relay is provided, comprising a housing, wherein a partition is provided in the housing, and the partition divides the interior of the housing into a first chamber and a second chamber;

[0008] A first electromagnetic assembly and a first movable contact piece are connected in the first chamber, a second electromagnetic assembly and a second movable contact piece are connected in the second chamber, and a static contact piece is provided on the partition; the static contact piece is located between the first movable contact piece and the second movable contact piece, the first electromagnetic assembly is provided on a side of the first movable contact piece facing away from the static contact piece, and the second electromagnetic assembly is provided on a side of the second movable contact piece facing away from the static contact piece;

[0009] Both sides of the stationary contact piece are provided with a first contact point, and both the first movable contact piece and the second movable contact piece are provided with a second contact point on the side facing the stationary contact piece;

[0010] The first movable contact piece is used to electrically contact or separate with the corresponding first contact through the second contact when driven by the first electromagnetic assembly; the second movable contact piece is used to electrically contact or separate with the corresponding first contact through the second contact when driven by the second electromagnetic assembly; the first electromagnetic assembly and the second electromagnetic assembly share a static contact piece. As an optional solution of the magnetic latching relay provided by the present invention, the magnetic latching relay also includes a first conductive piece disposed in the first chamber and a second conductive piece disposed in the second chamber;

[0011] The first conductive sheet and the first electromagnetic assembly are respectively connected to two ends of the first movable contact sheet; the second conductive sheet and the second electromagnetic assembly are respectively connected to two ends of the second movable contact sheet;

[0012] The housing is provided with a first outlet and two second outlets, the first outlet is used to lead out the static contact piece, and the two second outlets are used to lead out the first conductive piece and the second conductive piece respectively.

[0013] As an optional solution of the magnetic latching relay provided by the present invention, the first electromagnetic component is provided with a first terminal, and the second electromagnetic component is provided with a second terminal;

[0014] The first terminal, the second terminal, the first conductive piece, and the second conductive piece are all led out from the same side of the housing.

[0015] As an optional solution of the magnetic latching relay provided by the present invention, the first conductive piece and the second conductive piece are rotationally symmetrical, and the first electromagnetic assembly and the second electromagnetic assembly are rotationally symmetrical;

[0016] The housing includes a housing body and two cover plates; the housing body is provided with a first opening and a second opening, wherein one of the cover plates covers the first opening and, together with the housing body, encloses the first chamber; the other cover plate covers the second opening and, together with the housing body, encloses the second chamber; the first chamber and the second chamber are distributed along a first direction;

[0017] The first opening and the second opening are oriented in opposite directions. The two cover plates are disposed on opposite sides of the shell body along a second direction and are staggered in the second direction. The second direction is perpendicular to the first direction.

[0018] As an optional solution of the magnetic latching relay provided by the present invention, the first conductive piece and the second conductive piece extend in a first direction away from each other; the static contact piece and the first conductive piece are respectively led out on opposite sides of the shell body;

[0019] The first conductive sheet is provided with a first avoidance groove, and the first terminal and the first avoidance groove are arranged opposite each other in the second direction; the second conductive sheet is provided with a second avoidance groove, and the second terminal and the second avoidance groove are arranged opposite each other in the second direction.

[0020] As an optional solution of the magnetic latching relay provided by the present invention, the housing includes a housing body and a cover plate; the housing body is provided with a third opening, and the cover plate is sealed on the third opening;

[0021] The first electromagnetic component is provided with a first terminal passing through the shell body, and the second electromagnetic component is provided with a second terminal passing through the shell body. The first electromagnetic component and the second electromagnetic component are arranged in mirror symmetry, and the first conductive sheet and the second conductive sheet are led out through the side of the shell body away from the first terminal.

[0022] As an optional solution of the magnetic latching relay provided by the present invention, the portion of the static contact piece located outside the housing is provided with a first pin;

[0023] And / or, a second pin is provided on a portion of the first conductive sheet located outside the housing;

[0024] And / or, a third pin is provided on a portion of the second conductive sheet located outside the housing.

[0025] As an optional solution of the magnetic latching relay provided by the present invention, the housing is provided with a contoured structure corresponding to the first electromagnetic assembly and the second electromagnetic assembly, and the first electromagnetic assembly and the second electromagnetic assembly are clamped in the corresponding contoured structure;

[0026] And / or, the partition is provided with a first slot for clamping the static contact piece;

[0027] And / or, the housing is provided with two second slots, and one end of the first conductive sheet connected to the first movable contact sheet and one end of the second conductive sheet connected to the second movable contact sheet are respectively secured in the two second slots.

[0028] As an optional solution of the magnetic latching relay provided by the present invention, the first electromagnetic assembly and the second electromagnetic assembly each include an electromagnetic coil, a permanent magnet and a push rod; the permanent magnet is rotatably connected to the housing, a connecting plate is provided on the permanent magnet, the connecting plate is movably connected to the first end of the push rod, and a first limiting groove is provided at the second end of the push rod; the push rod is movably provided on the housing;

[0029] The first movable contact piece and the second movable contact piece each include a first spring piece and a second spring piece; the first end of the first spring piece and the first end of the second spring piece are in contact with each other, and a gap exists between the second end of the first spring piece and the second end of the second spring piece and the first spring piece and the second spring piece are clamped in the first limiting groove;

[0030] The permanent magnet is used to rotate under the drive of the electromagnetic coil and drive the push rod to move.

[0031] As an optional solution of the magnetic latching relay provided by the present invention, the first electromagnetic assembly and the second electromagnetic assembly each further include a mounting bracket, a mounting plate is provided in the housing, the first movable contact piece and the corresponding permanent magnet, as well as the second movable contact piece and the corresponding permanent magnet are separated by the mounting plate, a first end of the mounting bracket is connected to the mounting plate, and a second end of the mounting bracket is rotatably connected to the permanent magnet;

[0032] The mounting plate is provided with a communicating groove, and the push rod is movably arranged through the communicating groove.

[0033] Beneficial effects of the present invention:

[0034] The present invention provides a magnetic latching relay, wherein a housing is divided into a first chamber and a second chamber by a partition, and a static contact is provided on the partition, a first electromagnetic assembly and a first moving contact are provided in the first chamber, and a second electromagnetic assembly and a second moving contact are provided in the second chamber, so that the two electromagnetic assemblies and the two moving contacts can share a single static contact. When the first electromagnetic assembly is energized, it can drive the first moving contact to move relative to the static contact, so that the first moving contact, through the second contact thereon, can be brought into conductive contact with or separated from the first contact on the static contact, thereby connecting or disconnecting the circuit in which the first moving contact is located. When the second electromagnetic assembly is energized, it can drive the second moving contact to move relative to the static contact, so that the second moving contact, through the second contact thereon, can be brought into conductive contact with or separated from the first contact on the static contact, thereby connecting or disconnecting the circuit in which the second moving contact is located. That is, when the first electromagnetic component is energized, it can independently control the separation of the first moving contact piece and the static contact piece. When the second electromagnetic component is energized, it can independently control the separation of the second moving contact piece and the static contact piece. Moreover, the first electromagnetic component and the second electromagnetic component can also be energized at the same time to control the circuits where the two moving contact pieces are located to be disconnected at the same time, which can meet the scenario where two or more relays need to be used at the same time and they are required to be turned on and off separately without affecting each other.

[0035] Moreover, the housing of the magnetic latching relay is divided into a first chamber and a second chamber by a partition, which facilitates the reasonable arrangement of the first electromagnetic component, the first moving contact piece, the static contact piece, the second moving contact piece and the second electromagnetic component in the housing. While the two electromagnetic components and the two moving contacts share one static contact piece, the static contact piece is arranged between multiple moving contacts. The structural layout is reasonable and compact. The two electromagnetic components, the two moving contacts and the static contact piece are all arranged in the same housing, which can reduce the space occupied by the relay and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying any creative work.

[0037] Figure 1 This is a first exploded schematic diagram of a magnetic latching relay provided in the first embodiment of the present invention;

[0038] Figure 2 is a cross-sectional view of a magnetic latching relay provided in Embodiment 1 of the present invention;

[0039] Figure 3 This is a second exploded schematic diagram of the magnetic latching relay provided in the first embodiment of the present invention;

[0040] Figure 4 1 is a schematic structural diagram of a drive circuit and a main circuit of a magnetic latching relay provided in a first embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of the connection between the electromagnetic assembly and the moving contact piece of the magnetic latching relay provided in the first embodiment of the present invention;

[0042] Figure 6 yes Figure 4 A partial enlarged view of point A in the middle;

[0043] Figure 7 1 is a schematic structural diagram of a push rod of an electromagnetic assembly provided in a first embodiment of the present invention;

[0044] Figure 8 is an axonometric diagram of a magnetic latching relay provided in the first embodiment of the present invention;

[0045] Figure 9 1 is a structural diagram of a housing body of a magnetic latching relay provided in Embodiment 1 of the present invention;

[0046] Figure 10 yes Figure 2 A partial enlarged view of point B in the middle;

[0047] Figure 11 is an axonometric diagram of a magnetic latching relay provided in the second embodiment of the present invention;

[0048] Figure 12 1 is an exploded schematic diagram of a magnetic latching relay provided in a second embodiment of the present invention;

[0049] Figure 13 This is an internal view of a magnetic latching relay provided in the second embodiment of the present invention;

[0050] Figure 14 1 is a schematic structural diagram of a drive circuit and a main circuit of a magnetic latching relay provided in a second embodiment of the present invention;

[0051] Figure 15 Schematic diagram of the structure of the shell body of the magnetic latching relay provided in the second embodiment of the present invention.

[0052] In the picture:

[0053] 1. Housing; 4. Static contact piece;

[0054] 11. Shell body; 12. Cover plate; 13. Contour structure; 14. First outlet; 15. Second outlet; 16. First chamber; 17. Second chamber;

[0055] 111, first opening; 112, second opening; 113, third opening; 114, mounting plate; 115, partition; 116, second slot; 117, buckle;

[0056] 1141, connecting groove; 1142, limiting frame; 1143, slot; 1144, second limiting groove;

[0057] 1151, first card slot; 1152, exposure port;

[0058] 121, extension portion; 122, clamping hole;

[0059] 131, third slot; 132, limiting rib; 133, fourth slot;

[0060] 21. First electromagnetic assembly; 22. Second electromagnetic assembly;

[0061] 210, first terminal; 220, second terminal;

[0062] 211. Electromagnetic coil; 212. Permanent magnet; 213. Push rod; 214. Mounting bracket;

[0063] 2111. Coil skeleton; 2112. Coil; 2113. Yoke;

[0064] 2121, connecting plate; 2122, connecting shaft;

[0065] 2131, first limiting groove; 2132, movable cavity; 2133, limiting hole; 2141, plug post;

[0066] 30. Second contact point; 31. First moving contact piece; 32. Second moving contact piece;

[0067] 311, first reed; 312, second reed;

[0068] 40. First contact; 41. First pin;

[0069] 51. First conductive sheet; 52. Second conductive sheet;

[0070] 511, first avoidance groove; 512, second pin; 513, limiting protrusion; 514, give way groove;

[0071] 521, second avoidance groove; 522, third pin. DETAILED DESCRIPTION

[0072] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0073] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0074] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0075] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0076] In this embodiment, the term "and / or" simply describes the association relationship between associated objects, indicating that three possible relationships exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this invention generally indicates that the associated objects are in an "or" relationship.

[0077] In the embodiments of the present invention, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted.

[0078] Example 1

[0079] like Figure 1 、 Figure 2 and Figure 3 As shown, this embodiment provides a magnetic latching relay, including a housing 1, a static contact piece 4, a drive circuit and a main circuit, wherein two drive circuits are provided, respectively including a first electromagnetic component 21 and a second electromagnetic component 22, and two main circuits are provided, respectively including a first moving contact piece 31 and a second moving contact piece 32.

[0080] A partition 115 is provided within the housing 1, dividing the interior of the housing 1 into a first chamber 16 and a second chamber 17. A first electromagnetic assembly 21 and a first movable contact piece 31 are disposed within the first chamber 16, with the first electromagnetic assembly 21 connected to the first movable contact piece 31. A second electromagnetic assembly 22 and a second movable contact piece 32 are disposed within the second chamber 17, with the second electromagnetic assembly 22 connected to the second movable contact piece 32. A stationary contact piece 4 is mounted on the partition 115, positioned between the first and second movable contact pieces 31 and 32. The first electromagnetic assembly 21 is disposed on the side of the first movable contact piece 31 facing away from the stationary contact piece 4, and the second electromagnetic assembly 22 is disposed on the side of the second movable contact piece 32 facing away from the stationary contact piece 4. First contacts 40 are provided on both sides of the stationary contact piece 4, and second contacts 30 are provided on the sides of the first and second movable contact pieces 31 and 32 facing the stationary contact piece 4.

[0081] The first movable contact piece 31 is used to conductively contact or separate with the corresponding first contact 40 through the second contact 30 under the drive of the first electromagnetic component 21; the second movable contact piece 32 is used to conductively contact or separate with the corresponding first contact 40 through the second contact 30 under the drive of the second electromagnetic component 22; the first electromagnetic component 21 and the second electromagnetic component 22 share a static contact piece 4.

[0082] In this embodiment, the first electromagnetic assembly 21 is linked to the static contact piece 4 through the first movable contact piece 31, and the second electromagnetic assembly 22 is linked to the static contact piece 4 through the second movable contact piece 32. The two electromagnetic assemblies and the two movable contact pieces share a central static contact piece 4.

[0083] The magnetic latching relay provided in this embodiment has a housing 1 divided into a first chamber 16 and a second chamber 17 by a partition 115. A stationary contact 4 is disposed on the partition 115, a first electromagnetic assembly 21 and a first movable contact 31 are disposed within the first chamber 16, and a second electromagnetic assembly 22 and a second movable contact 32 are disposed within the second chamber 17. This allows the two electromagnetic assemblies and the two movable contacts to share a single stationary contact 4. When the first electromagnetic assembly 21 is energized, it drives the first movable contact 31 to move relative to the stationary contact 4, causing the first movable contact 31 to electrically contact or separate with the first contact 40 on the stationary contact 4 through its second contact 30, thereby connecting or disconnecting the circuit in which the first movable contact 31 resides. When the second electromagnetic assembly 22 is energized, it drives the second movable contact 32 to move relative to the stationary contact 4, causing the second movable contact 32 to electrically contact or separate with the first contact 40 on the stationary contact 4 through its second contact 30, thereby connecting or disconnecting the circuit in which the second movable contact 32 resides. That is, when the first electromagnetic component 21 is energized, it can independently control the separation of the first moving contact piece 31 and the static contact piece 4. When the second electromagnetic component 22 is energized, it can independently control the separation of the second moving contact piece 32 and the static contact piece 4. Moreover, the first electromagnetic component 21 and the second electromagnetic component 22 can also be energized at the same time to control the circuits where the two moving contact pieces are located to be disconnected at the same time, which can meet the scenario where two or more relays need to be used at the same time and are required to be turned on and off separately without affecting each other.

[0084] Moreover, the housing 1 of the magnetic latching relay is divided into a first chamber 16 and a second chamber 17 by a partition 115, which facilitates the reasonable arrangement of the first electromagnetic assembly 21, the first movable contact piece 31, the static contact piece 4, the second movable contact piece 32 and the second electromagnetic assembly 22 in the housing 1. While the two electromagnetic assemblies and the two movable contact pieces share one static contact piece 4, the static contact piece 4 is arranged between multiple movable contacts. The structural layout is reasonable and compact. The two electromagnetic assemblies, the two movable contact pieces and the static contact piece 4 are all arranged in the same housing 1, which can reduce the space occupied by the relay and reduce costs.

[0085] In this embodiment, the first electromagnetic assembly 21 and the second electromagnetic assembly 22 can be independently controlled by different voltages.

[0086] For example, in the initial state, the first and second electromagnetic assemblies 21 and 22 are de-energized, and the first and second movable contact pieces 31 and 32 are in contact with the corresponding first contacts 40 via their respective second contacts 30. That is, the two drive circuits are de-energized, and both main circuits are electrically connected. When the first electromagnetic assembly 21 is energized, it can independently control the separation of the first movable contact piece 31 from the static contact piece 4, thereby electrically disconnecting the corresponding main circuit. When the second electromagnetic assembly 22 is energized, it can independently control the separation of the second movable contact piece 32 from the static contact piece 4, thereby electrically disconnecting the corresponding main circuit. Furthermore, the first and second electromagnetic assemblies 21 and 22 can also be energized simultaneously to disconnect both main circuits.

[0087] like Figure 2 、 Figure 3 as well as Figure 4 As shown, the relay further includes a first conductive sheet 51 provided in the first chamber 16 and a second conductive sheet 52 provided in the second chamber 17. The first conductive sheet 51 and the first electromagnetic assembly 21 are respectively connected to the two ends of the first movable contact piece 31; the second conductive sheet 52 and the second electromagnetic assembly 22 are respectively connected to the two ends of the second movable contact piece 32, making the structural layout more reasonable. The housing 1 is provided with a first outlet 14 and two second outlets 15 (such as Figure 9 As shown), the first lead-out port 14 is used to lead out the static contact piece 4, and the two second lead-out ports 15 are respectively used to lead out the first conductive piece 51 and the second conductive piece 52, so as to facilitate wiring. Specifically, the two ends of the first movable contact piece 31 and the two ends of the second movable contact piece 32 are respectively fixed ends and movable ends. The fixed ends are used to connect with the corresponding first conductive piece 51 and the second conductive piece 52, and the movable ends are used to connect with the corresponding first electromagnetic assembly 21 and the second electromagnetic assembly 22. When the first electromagnetic assembly 21 is energized, it can drive the movable end of the first movable contact piece 31 to deform relative to the fixed end, so that the corresponding second contact 30 moves, and realizes contact or separation with the corresponding first contact 40. When the second electromagnetic assembly 22 is energized, it can drive the movable end of the second movable contact piece 32 to deform relative to the fixed end, so that the corresponding second contact 30 moves, and realizes contact or separation with the corresponding first contact 40.

[0088] like Figure 4 and Figure 5As shown, the first electromagnetic assembly 21 and the second electromagnetic assembly 22 each include an electromagnetic coil 211, a permanent magnet 212, and a push rod 213. The permanent magnet 212 is rotatably connected to the housing 1. A connecting plate 2121 is provided on the permanent magnet 212. The connecting plate 2121 is movably connected to the first end of the push rod 213. The second end of the push rod 213 is provided with a first limiting groove 2131. The push rod 213 is movably provided on the housing 1 and connected to the corresponding first movable contact piece 31 or second movable contact piece 32. When the electromagnetic coil 211 is energized, the permanent magnet 212 is driven to rotate by the electromagnetic coil 211, driving the push rod 213 to move. The push rod 213 then drives the corresponding first movable contact piece 31 or second movable contact piece 32 to separate from the static contact piece 4, disconnecting the corresponding main circuit.

[0089] Further, if Figure 4 、 Figure 5 、 Figure 6 as well as Figure 7 As shown, the first and second movable contact pieces 31 and 32 each include a first spring piece 311 and a second spring piece 312. The first end of the first spring piece 311 and the first end of the second spring piece 312 are in contact with each other, while the second end of the first spring piece 311 and the second end of the second spring piece 312 are spaced apart and are retained within the first limiting groove 2131. Specifically, the second end of the second spring piece 312 is tilted relative to the second end of the first spring piece 311, allowing them to elastically deform toward or away from each other. When the first and second movable contact pieces 31 and 32 are retained within the first limiting groove 2131, the elastic force causes them to abut against the inner wall of the first limiting groove 2131, thereby achieving a stable connection with the push rod 213.

[0090] like Figure 6 and Figure 7 As shown, the first end of the push rod 213 is provided with an active cavity 2132 and a limiting hole 2133 connected to the active cavity 2132, a permanent magnet 212 bracket is provided outside the permanent magnet 212, the permanent magnet 212 bracket is provided with the above-mentioned connecting plate 2121, and one end of the connecting plate 2121 is provided with a connecting shaft 2122, which can be movably located in the active cavity 2132, and the end is passed through the limiting hole 2133 to prevent the connecting shaft 2122 from escaping from the active cavity 2132.

[0091] like Figure 5 and Figure 9As shown, the first electromagnetic assembly 21 and the second electromagnetic assembly 22 each further include a mounting bracket 214. A mounting plate 114 is provided within the housing 1. The first movable contact piece 31 and the corresponding permanent magnet 212, as well as the second movable contact piece 32 and the corresponding permanent magnet 212, are separated by the mounting plate 114. This provides independent mounting spaces for the first electromagnetic assembly 21 and the first movable contact piece 31, and for the second electromagnetic assembly 22 and the second movable contact piece 32, to prevent interference. The first end of the mounting bracket 214 is connected to the mounting plate 114, and the second end of the mounting bracket 214 is rotatably connected to the permanent magnet 212, enabling rotation of the permanent magnet 212 within the housing 1. Specifically, a pivot is provided on the bracket of the permanent magnet 212, and a rotation hole is provided on the mounting bracket 214. The pivot extends through the rotation hole and rotatably engages with the rotation hole. At least one pin 2141 is protruded from the first end of the mounting bracket 214, and a limit frame 1142 is provided on the mounting plate 114. The limit frame 1142 defines a slot 1143, and the pin 2141 is inserted into the slot 1143 to achieve fixed installation of the mounting bracket 214 in the shell 1.

[0092] See also Figure 9 The mounting plate 114 is provided with a communication groove 1141 , and the push rod 213 is movably provided in the communication groove 1141 to connect the permanent magnet 212 with the corresponding first movable contact piece 31 or the second movable contact piece 32 .

[0093] like Figure 4 and Figure 8 As shown, the first electromagnetic assembly 21 is provided with a first terminal 210, and the second electromagnetic assembly 22 is provided with a second terminal 220. The first terminal 210, the second terminal 220, the first conductive plate 51, and the second conductive plate 52 are all led out on the same side of the housing 1, that is, the lead-out end of the drive circuit and the lead-out end of the main circuit are on the same side, which is convenient for wiring on the same side of the relay. The static contact 4 is led out on the side of the housing 1 away from the first conductive plate 51. Figure 9 As shown, the housing 1 is provided with a first outlet 14 and two second outlets 15 . The first outlet 14 is used to lead out the static contact piece 4 , and the two second outlets 15 are used to lead out the first conductive piece 51 and the second conductive piece 52 , respectively.

[0094] In this embodiment, see Figure 3 、 Figure 4 as well as Figure 8 The first conductive sheet 51 and the second conductive sheet 52 are rotationally symmetrical about the middle static contact sheet 4, and the first electromagnetic assembly 21 and the second electromagnetic assembly 22 are rotationally symmetrical about the middle static contact sheet 4. The housing 1 includes a housing body 11 and two cover plates 12. The housing body 11 is provided with a first opening 111 and a second opening 112. Figure 2One cover plate 12 covers the first opening 111 and encloses the aforementioned first chamber 16 with the housing body 11. The other cover plate 12 covers the second opening 112 and encloses the aforementioned second chamber 17 with the housing body 11. The first chamber 16 and the second chamber 17 are distributed along a first direction. The first electromagnetic assembly 21, the first conductive piece 51, and the first movable contact piece 31 are disposed in the first chamber 16. The second electromagnetic assembly 22, the second conductive piece 52, and the second movable contact piece 32 are disposed in the second chamber 17. Furthermore, the first electromagnetic assembly 21 and the second electromagnetic assembly 22 are distributed along the first direction, and the first movable contact piece 31 and the second movable contact piece 32 are distributed along the first direction.

[0095] The first opening 111 and the second opening 112 face opposite directions, and the two cover plates 12 are disposed on opposite sides of the housing body 11 along a second direction, and are staggered in the second direction, wherein the second direction is perpendicular to the first direction. This arrangement facilitates placement and proper arrangement of the corresponding electromagnetic assembly and movable contact piece through the first opening 111 and the second opening 112, and facilitates the extraction of the first conductive piece 51, the second conductive piece 52, and the stationary contact piece 4 from the housing 1.

[0096] Because the first conductive sheet 51 and the second conductive sheet 52 are rotationally symmetrical, and the first electromagnetic assembly 21 and the second electromagnetic assembly 22 are rotationally symmetrical, the first conductive sheet 51 and the second conductive sheet 52 can be configured to have identical structures, and the first electromagnetic assembly 21 and the second electromagnetic assembly 22 can be configured to have identical structures. During installation, the components in the first and second spaces of the housing 1 can be rotationally symmetrical, which reduces production and transportation difficulties and saves costs. Furthermore, the two cover plates 12 are also rotationally symmetrically arranged.

[0097] like Figure 8 As shown, the first conductive sheet 51 and the second conductive sheet 52 extend away from each other along a first direction; the static contact sheet 4 and the first conductive sheet 51 are respectively led out on opposite sides of the housing body 11. Specifically, the static contact sheet 4 extends along the first direction, and the static contact sheet 4 and the conductive sheet 5 are respectively led out on opposite sides of the housing body 11 along a third direction. This layout is more reasonable and avoids interference between the static contact sheet 4 and the conductive sheet 5 when they are led out. The third direction, the second direction, and the first direction are perpendicular to each other.

[0098] Furthermore, the first conductive sheet 51 is provided with a first avoidance groove 511. The first terminal 210 and the first avoidance groove 511 are arranged opposite each other in the second direction, preventing interference between the first conductive sheet 51 and the first terminal 210 while leaving space for connecting the first terminal 210 to related components. The second conductive sheet 52 is provided with a second avoidance groove 521. The second terminal 220 and the second avoidance groove 521 are arranged opposite each other in the second direction, preventing interference between the second conductive sheet 52 and the second terminal 220 while leaving space for connecting the second terminal 220 to related components.

[0099] See also Figure 2 、 Figure 5 and Figure 6 Taking the first movable contact piece 31 and the first conductive piece 51 as an example, the portion of the first conductive piece 51 located inside the housing 1 and the first movable contact piece 31 both extend along the third direction. A clearance groove 514 is provided on the first conductive piece 51, and the push rod 213 is located in the clearance groove 514 to avoid interference between the push rod 213 and the first conductive piece 51.

[0100] like Figure 4 and Figure 8 As shown, the portion of the static contact piece 4 located outside the housing 1 is provided with a first pin 41; the portion of the first conductive piece 51 located outside the housing 1 is provided with a second pin 512; and the portion of the second conductive piece 52 located outside the housing 1 is provided with a third pin 522. The first pin 41, the second pin 512, and the third pin 522 all serve as electrical signal collection points and are located on the same side as the first conductive piece 51 and the second conductive piece 52.

[0101] In this embodiment, see Figure 2 and Figure 9 The shell 1 is provided with a profiling structure 13 corresponding to the first electromagnetic component 21 and the second electromagnetic component 22. The first electromagnetic component 21 and the second electromagnetic component 22 are clamped in the corresponding profiling structure 13 to facilitate the assembly and positioning of the first electromagnetic component 21 and the second electromagnetic component 22 in the shell 1. Specifically, Figure 4 The electromagnetic coil 211 includes a coil bobbin 2111, a coil 2112 wound on the coil bobbin 2111, and a yoke 2113 partially inserted into the coil bobbin 2111. The contoured structure 13 includes a third clamping groove 131, a limiting rib 132, and a fourth clamping groove 133 provided on the shell body 11 and / or the cover plate 12. For example, the shell body 11 and the cover plate 12 are both provided with third clamping grooves 131 at both ends along the third direction. The third clamping grooves 131 are used to clamp the end plates at both ends of the coil bobbin 2111. The shell body 11 and the cover plate 12 are both provided with limiting ribs 132 on the inner walls. The fourth clamping grooves 133 are formed between the limiting ribs 132. The portion of the yoke 2113 located outside the coil bobbin 2111 is engaged with the corresponding fourth clamping groove 133.

[0102] like Figure 9 As shown, the movable contacts 3 are separated by a partition 115. The partition 115 is provided with a first retaining groove 1151 for retaining the stationary contact 4, ensuring that the stationary contact 4 is securely mounted. Specifically, the first retaining groove 1151 and the first outlet 14 for leading out the stationary contact 4 are arranged opposite each other in the third direction. When the cover 12 is fastened to the housing body 11, the partition 115 divides the housing 1 into a first chamber 16 and a second chamber 17.

[0103] Furthermore, a revealing opening 1152 is provided on the partition 115 , and conductive contact is achieved between the second contact 30 and the first contact 40 through the revealing opening 1152 .

[0104] like Figure 2 and Figure 9 As shown, the shell body 11 is provided with two second card slots 116, and one end of the first conductive piece 51 connected to the first movable contact piece 31, and one end of the second conductive piece 52 connected to the second movable contact piece 32 are respectively clamped in the two second card slots 116, which facilitates the positioning of the installation positions of the first movable contact piece 31 and the first conductive piece 51, as well as the positioning of the installation positions of the second movable contact piece 32 and the second conductive piece 52, and ensures a stable installation. Figure 10 A second limiting groove 1144 is provided on the mounting plate 114 , and a limiting protrusion 513 is provided on the first conductive sheet 51 . The limiting protrusion 513 is clamped in the second limiting groove 1144 to improve the installation stability of the first conductive sheet 51 .

[0105] like Figure 3 As shown, the shell body 11 and the cover plate 12 are connected by buckles 117 and locking holes 122. Specifically, a plurality of buckles 117 are provided on the outer wall of the shell body 11, and a plurality of extensions 121 are provided on the side of the cover plate 12 facing the shell body 11. The extensions 121 are provided with locking holes 122. The cover plate 12 is buckled onto the shell body 11 and is engaged with the buckles 117 through the locking holes 122, which ensures a stable connection and easy assembly.

[0106] Example 2

[0107] Based on the same inventive concept as that of the first embodiment, this embodiment provides a magnetic latching relay, which is different from the first embodiment.

[0108] In this embodiment, see Figure 11 、 Figure 12 as well as Figure 13 As shown, the housing 1 includes a housing body 11 and a cover plate 12; the housing body 11 is provided with a third opening 113, and the cover plate 12 covers the third opening 113. In this embodiment, a portion of the cover plate 12 is surrounded by the housing body 11 to form a first chamber 16, and another portion of the cover plate 12 is surrounded by the housing body 11 to form a second chamber 17. Figure 14The first electromagnetic assembly 21 and the second electromagnetic assembly 22 are arranged in a mirror-symmetrical manner, so that they are connected to the corresponding first moving contact piece 31 or the second moving contact piece 32. Figure 15 As shown, a partition 115 is provided within the housing body 11, and the housing body 11 is mirror-symmetrical with respect to the partition 115. A slot 1143 defined by an upper limit frame 1142 on the mounting plate 114 faces the side where the third opening 113 is located. When two electromagnetic assemblies 2 are installed, the pins 2141 of the mounting brackets 214 of the two electromagnetic assemblies 2 can pass through the third opening 113 and be inserted into the slot 1143.

[0109] Because the third opening 113 is provided only on one side of the housing body 11, the first electromagnetic assembly 21, the second electromagnetic assembly 22, the first movable contact piece 31, the second movable contact piece 32, and the stationary contact piece 4 are all installed into the housing body 11 through the third opening 113, eliminating the need for installation on both sides of the housing body 11. After installation, the cover 12 is snapped into the third opening 113 and connected to the housing body 11 via the buckle 117 and the latch hole 122. It will be understood that in this embodiment, the first electromagnetic assembly 21 and the second electromagnetic assembly 22 need to be prepared to have mirror-symmetrical structures.

[0110] like Figure 11 、 Figure 13 as well as Figure 14 As shown, the first electromagnetic assembly 21 is provided with a first terminal 210 extending through the housing body 11, and the second electromagnetic assembly 22 is provided with a second terminal 220 extending through the housing body 11. The first conductive plate 51 and the second conductive plate 52 are led out through the side of the housing body 11 away from the first terminal 210. In other words, the lead-out terminal of the drive circuit and the lead-out terminal of the main circuit are on different sides of the housing 1. The static contact 4, the first terminal 210, and the second terminal 220 are all led out on the same side of the housing body 11.

[0111] The second end of the first movable contact piece 31 and the second end of the second movable contact piece 32 are fixed ends, which are used to connect with the corresponding first conductive piece 51 and second conductive piece 52, and are clamped in the second clamping groove 116 of the shell body 11. The first end of the first movable contact piece 31 and the first end of the second movable contact piece 32 are movable ends, which are used to connect with the push rod 213, and the second contact point 30 is set close to the movable end. Figure 13 and Figure 14 In the orientation in the middle, the first contact 40 and the second contact 30 are both close to the lower end of the shell 1, the fixed ends of the first movable contact piece 31 and the second movable contact piece 32 are both located at the upper end of the shell 1, and the first conductive piece 51 and the second conductive piece 52 are led out through the second lead-out port 15 at the upper end of the shell 1, and the static contact piece 4 is led out through the first lead-out port 14 at the lower end of the shell 1, which can save the material usage of the static contact piece 4 and the conductive piece 5, further reduce the occupied space in the shell 1, and reduce the cost.

[0112] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A magnetic latching relay, comprising a housing (1), characterized in that: A partition (115) is provided in the shell (1), and the partition (115) divides the interior of the shell (1) into a first chamber (16) and a second chamber (17); A first electromagnetic assembly (21) and a first moving contact piece (31) connected to each other are provided in the first chamber (16); a second electromagnetic assembly (22) and a second moving contact piece (32) connected to each other are provided in the second chamber (17); a static contact piece (4) is provided on the partition (115); the static contact piece (4) is located between the first moving contact piece (31) and the second moving contact piece (32); the first electromagnetic assembly (21) is provided on a side of the first moving contact piece (31) facing away from the static contact piece (4); and the second electromagnetic assembly (22) is provided on a side of the second moving contact piece (32) facing away from the static contact piece (4); Both sides of the stationary contact piece (4) are provided with first contacts (40), and both sides of the first movable contact piece (31) and the second movable contact piece (32) facing the stationary contact piece (4) are provided with second contacts (30); The first movable contact piece (31) is used for electrically contacting or separating with the corresponding first contact (40) through the second contact (30) under the drive of the first electromagnetic component (21); the second movable contact piece (32) is used for electrically contacting or separating with the corresponding first contact (40) through the second contact (30) under the drive of the second electromagnetic component (22); the first electromagnetic component (21) and the second electromagnetic component (22) share the static contact piece (4).

2. The magnetic latching relay according to claim 1, wherein: The magnetic latching relay further includes a first conductive sheet (51) provided in the first chamber (16) and a second conductive sheet (52) provided in the second chamber (17); The first conductive sheet (51) and the first electromagnetic assembly (21) are respectively connected to two ends of the first movable contact sheet (31); the second conductive sheet (52) and the second electromagnetic assembly (22) are respectively connected to two ends of the second movable contact sheet (32); The housing (1) is provided with a first outlet (14) and two second outlets (15), wherein the first outlet (14) is used to lead out the static contact piece (4), and the two second outlets (15) are used to lead out the first conductive piece (51) and the second conductive piece (52), respectively.

3. The magnetic latching relay according to claim 2, wherein: The first electromagnetic component (21) is provided with a first terminal (210), and the second electromagnetic component (22) is provided with a second terminal (220); The first terminal (210), the second terminal (220), the first conductive sheet (51), and the second conductive sheet (52) are all led out from the same side of the housing (1).

4. The magnetic latching relay according to claim 3, wherein: The first conductive sheet (51) and the second conductive sheet (52) are rotationally symmetrical, and the first electromagnetic assembly (21) and the second electromagnetic assembly (22) are rotationally symmetrical; The shell (1) comprises a shell body (11) and two cover plates (12); the shell body (11) is provided with a first opening (111) and a second opening (112); one of the cover plates (12) covers the first opening (111) and, together with the shell body (11), encloses a first chamber (16); the other cover plate (12) covers the second opening (112) and, together with the shell body (11), encloses a second chamber (17); the first chamber (16) and the second chamber (17) are distributed along a first direction; The first opening (111) and the second opening (112) are oriented in opposite directions, and the two cover plates (12) are arranged on opposite sides of the shell body (11) along a second direction and are staggered in the second direction, which is perpendicular to the first direction.

5. The magnetic latching relay according to claim 4, wherein: The first conductive sheet (51) and the second conductive sheet (52) extend in a first direction away from each other; the static contact sheet (4) and the first conductive sheet (51) are respectively led out on opposite sides of the shell body (11); The first conductive sheet (51) is provided with a first avoidance groove (511), and the first terminal (210) and the first avoidance groove (511) are arranged opposite each other in the second direction; the second conductive sheet (52) is provided with a second avoidance groove (521), and the second terminal (220) and the second avoidance groove (521) are arranged opposite each other in the second direction.

6. The magnetic latching relay according to claim 2, wherein: The housing (1) comprises a housing body (11) and a cover plate (12); the housing body (11) is provided with a third opening (113), and the cover plate (12) is sealed on the third opening (113); The first electromagnetic component (21) is provided with a first terminal (210) passing through the shell body (11), and the second electromagnetic component (22) is provided with a second terminal (220) passing through the shell body (11). The first electromagnetic component (21) and the second electromagnetic component (22) are arranged in a mirror-symmetrical manner, and the first conductive sheet (51) and the second conductive sheet (52) are led out through a side of the shell body (11) facing away from the first terminal (210).

7. The magnetic latching relay according to claim 2, wherein: The portion of the static contact piece (4) located outside the housing (1) is provided with a first plug pin (41); And / or, a second plug pin (512) is provided on a portion of the first conductive sheet (51) located outside the housing (1); And / or, a third plug pin (522) is provided on a portion of the second conductive sheet (52) located outside the housing (1).

8. The magnetic latching relay according to claim 2, wherein: The housing (1) is provided with a contoured structure (13) corresponding to the first electromagnetic component (21) and the second electromagnetic component (22); the first electromagnetic component (21) and the second electromagnetic component (22) are clamped in the corresponding contoured structure (13); And / or, the partition (115) is provided with a first slot (1151) for clamping the static contact piece (4); And / or, the housing (1) is provided with two second card slots (116), and one end of the first conductive sheet (51) connected to the first movable contact sheet (31), and one end of the second conductive sheet (52) connected to the second movable contact sheet (32) are respectively clamped in the two second card slots (116).

9. The magnetic latching relay according to any one of claims 1 to 8, characterized in that: The first electromagnetic assembly (21) and the second electromagnetic assembly (22) both comprise an electromagnetic coil (211), a permanent magnet (212) and a push rod (213); the permanent magnet (212) is rotatably connected to the housing (1); a connecting plate (2121) is provided on the permanent magnet (212); the connecting plate (2121) is movably connected to the first end of the push rod (213); the second end of the push rod (213) is provided with a first limiting groove (2131); the push rod (213) is movably provided on the housing (1); The first movable contact piece (31) and the second movable contact piece (32) both comprise a first spring piece (311) and a second spring piece (312); the first end of the first spring piece (311) and the first end of the second spring piece (312) are in contact with each other, and a gap exists between the second end of the first spring piece (311) and the second end of the second spring piece (312) and the first limiting groove (2131); The permanent magnet (212) is used to rotate under the drive of the electromagnetic coil (211) and drive the push rod (213) to move.

10. The magnetic latching relay according to claim 9, wherein: The first electromagnetic assembly (21) and the second electromagnetic assembly (22) both further include a mounting bracket (214); a mounting plate (114) is provided in the housing (1); the first movable contact piece (31) and the corresponding permanent magnet (212), as well as the second movable contact piece (32) and the corresponding permanent magnet (212) are separated by the mounting plate (114); a first end of the mounting bracket (214) is connected to the mounting plate (114); and a second end of the mounting bracket (214) is rotatably connected to the permanent magnet (212); The mounting plate (114) is provided with a communication groove (1141), and the push rod (213) is movably arranged through the communication groove (1141).

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