Three-phase relay

Abstract

The utility model relates to the technical field of relays, and discloses a three-phase relay, which comprises a shell, a driving part is arranged on the shell, three moving plates and three static plates are arranged in the shell, a moving plate is arranged on the shell, and the driving part realizes separation or abutting of the moving plates and the static plates through the moving plate. According to the application, the moving plate is driven by the driving piece, the moving plate drives the moving plate and the static plate to realize separation or abutting, so that the three circuits can realize disconnection or connection, and the relay can control the connection or disconnection of the three circuits and can control the three circuits at the same time; and meanwhile, the three moving plates and the three static plates are arranged on one relay, so that the installation process of the relay can be completed only by installing the circuit with one relay, the circuit can meet the use requirement without installing too many relays, and the relay can be conveniently installed in the circuit.

Description

Technical Field

[0001] The present application relates to the technical field of relays, and in particular to a three-phase relay. Background Art

[0002] A magnetic latching relay is an electrically controlled switching device that uses electromagnetic principles to open or close a circuit. The magnetic latching relay can be used in the fields of agricultural irrigation and household water storage pump motor automatic control. Agricultural irrigation and household water storage pump motors usually use three relays as control switches to ensure control of the three circuits.

[0003] In the related technology, the relay includes a shell, a placement groove is opened on the shell, and a driving part, a moving piece and a static piece are fixedly connected in the placement groove. The moving piece and the static piece are both connected to the driving part, the moving piece is connected to one circuit, and the static piece is connected to another circuit. A switch is provided on the shell, and the switch can realize the separation or abutment of the moving piece and the static piece through the driving part to realize the opening or closing of the circuit.

[0004] Since agricultural irrigation and household water storage pump motors usually require three relays for control, and the three relays need to be installed separately in the circuit, it is time-consuming and labor-intensive. It is difficult to achieve parameter consistency when the three relays are used in combination, that is, it is difficult to synchronize the three relays. Utility Model Content

[0005] In order to improve the problem that three relays are difficult to operate synchronously, the present application provides a three-phase relay.

[0006] The present application provides a three-phase relay, which adopts the following technical solution:

[0007] A three-phase relay comprises a shell, a driving member is arranged on the shell, three moving pieces and three static pieces are arranged in the shell, a moving plate is arranged on the shell, and the driving member realizes separation or abutment of the moving piece and the static piece through the moving plate.

[0008] By adopting the above technical solution, the moving plate is driven by the driving member, so that the moving plate drives the moving plate and the static plate to separate or abut, so that the three circuits can be opened or closed, so that the relay can control the closing or opening of the three circuits, so that the relay can control the three circuits at the same time; at the same time, since the three moving plates and the static plates are arranged on one relay, the circuit only needs to be installed with one relay to complete the installation process of the relay, so that the circuit can meet the use requirements without installing too many relays, and the relay is easy to install in the circuit.

[0009] Optionally, the moving piece is provided with a first bending portion, and the static piece is provided with a second bending portion, and the first bending portion and the second bending portion are respectively located on two sides of the shell.

[0010] By adopting the above technical solution, the first bending portion and the second bending portion are respectively located on both sides of the shell, so that people can distinguish the moving plate and the static plate by being located on different sides of the shell, so that people will not connect the moving plate and the static plate incorrectly, reducing the possibility of people connecting the wrong line, so that the line can be correct for the use of the machine.

[0011] Optionally, the movable plate is provided with a first movable block and a second movable block, the first movable block is used to drive the movable plate to move toward the static plate, and the second movable block is used to drive the movable plate to separate from the static plate.

[0012] By adopting the above technical solution, the first moving block drives the moving piece to move toward the static piece, so that the moving piece and the static piece are in contact, so that the circuit can be closed. The second moving block drives the moving piece to move away from the static piece, so that the moving piece and the static piece are separated, so that the moving plate can realize whether the circuit is opened or closed.

[0013] Optionally, a placement groove and a receiving groove are provided on the shell, the placement groove is used to place the driving member, and the receiving groove is used to place the moving plate and the static plate, and a through hole is provided on the shell, and the through hole is used for the moving plate to pass through.

[0014] By adopting the above technical solution, the driving member is arranged in the placement groove, and the moving plate and the static plate are arranged in the accommodating groove, so that the arc generated when the moving plate and the static plate are separated will not be blocked by the shell, so that the arc will not cause damage to the driving member, and the moving plate moves in the through hole, so that the driving member can drive the moving plate and the static plate; at the same time, when people repair the driving member in the placement groove, it will not affect the moving plate and the static plate.

[0015] Optionally, two installation covers are provided on the shell, and the installation covers are used to cover the opening of the placement groove or the receiving groove. The installation covers are provided with fixing parts, and the fixing parts are used to limit the separation of the installation covers from the shell.

[0016] By adopting the above technical solution, the opening of the placement groove or the accommodating groove can be covered by the installation cover, so that the installation cover can limit the driving part, the moving piece and the static piece from being separated from the shell, and the installation cover can protect the driving part, the moving piece and the static piece, thereby reducing the loss suffered by the driving part, the moving piece and the static piece.

[0017] Optionally, the fixing member includes a fixing block, which is arranged on the mounting cover, a stop hole is provided on the fixing block, and a stop block is provided on the shell. When the stop block is located in the stop hole, the fixing block and the shell are fixed to each other.

[0018] By adopting the above technical solution, the stop block is inserted into the stop hole, and the hole wall of the stop hole restricts the stop block, making it difficult for the stop block to move in the stop hole, so that the fixing block can be fixed to the stop block, that is, the installation cover and the shell are fixed to each other, reducing the possibility of the installation cover detaching from the shell.

[0019] Optionally, the fixing member includes a limit block, which is arranged on the mounting cover, and a limit groove for inserting the limit block is opened on the shell. When the limit block is inserted into the limit groove, the mounting cover is fixed on the shell.

[0020] By adopting the above technical solution, the limiting block is inserted into the limiting groove, so that the limiting block and the shell are fixed to each other, and the installation cover and the shell are fixed to each other, reducing the possibility of separation of the installation cover and the shell.

[0021] Optionally, the fixing member also includes a pop-up block, the shell is provided with a pop-up member, the limiting block is provided with a pop-up hole for inserting the pop-up block, the pop-up member drives the pop-up block to be inserted into the pop-up hole, and when the pop-up block is inserted into the pop-up hole, the limiting block is located in the limiting groove.

[0022] By adopting the above technical solution, the pop-up block is driven to move by the pop-up member, and the pop-up block is inserted into the pop-up hole, so that the hole wall of the pop-up hole restricts the pop-up block, reducing the possibility of the pop-up block moving in the pop-up hole, so that the pop-up block can be stably located in the pop-up hole, and people can press the pop-up block to make the pop-up block detach from the pop-up hole, so that the limit block can be taken out of the limit groove.

[0023] Optionally, a sliding plate is slidably connected to the shell, the pop-up member is arranged on the sliding plate, and the pop-up block has an inclined surface. When the pop-up block is inserted into the pop-up hole, the inclined surface is inclined toward the sliding direction of the sliding plate and the direction of the limiting groove.

[0024] By adopting the above technical solution, the pop-up member is driven to move by the sliding plate, so that the limit block can move along the inclined surface, so that the pop-up block moves toward the pop-up member, and the pop-up block can be separated from the pop-up hole, thereby realizing the pop-up block unlocking the limit block, making it easier for the pop-up block to be separated from the pop-up hole.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The driving member drives the moving plate, so that the moving plate drives the moving plate and the static plate to separate or abut, so that the three circuits can be opened or closed, so that the relay can control the closing or opening of the three circuits; at the same time, the circuit only needs to install one relay to complete the control of the three circuits, so that the circuit does not need to install too many relays, reduces the installation steps, and facilitates the installation of relays and circuits.

[0027] 2. The driving member is arranged in the placement groove, and the moving piece and the static piece are arranged in the accommodating groove, so that the arc generated when the moving piece and the static piece are separated will not affect the driving member; at the same time, people can only repair one side of the driving member or one side of the moving piece and the static piece, so that people will not affect the other side when repairing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of Example 1;

[0029] Figure 2 is a structural schematic diagram highlighting the accommodation groove in Example 1;

[0030] Figure 3 is a schematic diagram of the structure of the placement slot in Example 1;

[0031] Figure 4 is an exploded schematic diagram highlighting the limit block in Example 2;

[0032] Figure 5 is a partial cross-sectional view highlighting the sliding plate in Example 2;

[0033] Figure 6 It is a structural schematic diagram highlighting the installation cover in Example 2.

[0034] Reference numerals: 1, housing; 11, driving member; 111, coil frame; 112, armature member; 113, yoke block; 114, coil; 12, moving plate; 121, first bending portion; 13, stationary plate; 131, second bending portion; 14, placement groove; 141, through hole; 15, receiving groove; 151, baffle; 16, moving plate; 161, first moving block; 162, second moving block; 17, stop 1. movable block; 171. stop surface; 172. fixed groove; 173. disengagement groove; 18. limiting groove; 181. sliding groove; 182. operating hole; 2. mounting cover; 21. fixing piece; 211. fixing block; 212. stop hole; 22. limiting block; 221. pop-up hole; 222. limiting surface; 23. pop-up block; 24. sliding plate; 241. pop-up groove; 242. pop-up piece; 243. operating block. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-6 This application is described in further detail.

[0036] Example 1

[0037] This embodiment discloses a three-phase relay. Figure 1 and Figure 2A three-phase relay includes a housing 1, on which are provided three moving pieces 12 and three static pieces 13. The moving piece 12 is connected to one circuit, and the static piece 13 is connected to another circuit. When the moving piece 12 abuts against the static piece 13, the two circuits are closed, and when the moving piece 12 is separated from the static piece 13, the two circuits are disconnected.

[0038] Reference Figure 1 and Figure 2 The moving piece 12 is integrally formed with a first bent portion 121, and the extending direction of the first bent portion 121 is different from the extending direction of the moving piece 12. The static piece 13 is integrally formed with a second bent portion 131, and the extending direction of the second bent portion 131 is different from the extending direction of the static piece 13. The first bent portion 121 protrudes toward one side of the housing 1, and the second bent portion 131 protrudes toward the other side of the housing 1, so that people can distinguish the moving piece 12 from the static piece 13.

[0039] Reference Figure 2 and Figure 3 The end surface of the housing 1 is provided with a placement groove 14, in which the driving member 11 is fixedly connected, and the placement groove 14 is used for placing the driving member 11. The driving member 11 includes a coil frame 111, an armature 112 and two yoke blocks 113. The coil frame 111 is fixedly connected to the placement groove 14, the armature 112 is rotatably connected to the placement groove 14, the yoke block 113 is fixedly connected to the coil frame 111, and a coil 114 is arranged in the coil frame 111. When the coil 114 is energized, the yoke block 113 can drive the armature 112 to rotate.

[0040] Reference Figure 2 and Figure 3 The housing 1 has an end surface with a receiving groove 15, which is used to accommodate three moving pieces 12 and three static pieces 13. Two baffles 151 are fixedly connected in the receiving groove 15, and the baffles 151 are located between two adjacent static pieces 13 to reduce the arc generated when the static pieces 13 and the moving pieces 12 are separated. A through hole 141 is provided on the bottom wall of the placement groove 14, and the through hole 141 is connected to the receiving groove 15. A moving plate 16 is provided in the through hole 141, and the moving plate 16 is connected to the armature 112. When the armature 112 rotates, the moving plate 16 can move.

[0041] Reference Figure 2 The moving plate 16 is fixedly connected with three first moving blocks 161 and three second moving blocks 162, and the moving piece 12 is located between the first moving blocks 161 and the second moving blocks 162. The driving member 11 drives the moving plate 16 to move, so that the first moving block 161 drives the moving piece 12 to move toward the static piece 13, so that the moving piece 12 abuts against the static piece 13; the second moving block 162 drives the moving piece 12 to move away from the static piece 13, so that the moving piece 12 is separated from the static piece 13.

[0042] Reference Figure 1 , Figure 2 and Figure 3 Two mounting covers 2 are provided on the housing 1. The mounting covers 2 can cover the opening of the placement slot 14 or the receiving slot 15. The mounting covers 2 protect the driving member 11, the moving piece 12 and the static piece 13. The mounting covers 2 are provided with a plurality of fixing members 21, which realize the mutual fixing of the mounting covers 2 and the housing 1. The plurality of fixing members 21 are distributed in an array along the circumference of the mounting covers 2.

[0043] Reference Figure 1 The fixing member 21 includes a fixing block 211, and the fixing block 211 is fixedly connected to the end surface of the mounting cover 2. A stop hole 212 is provided on the end surface of the fixing block 211. A plurality of stop blocks 17 are fixedly connected to the housing 1, and the stop blocks 17 can be inserted into the stop holes 212. The plurality of stop blocks 17 are divided into two groups, and the two groups of stop blocks 17 extend along the width direction of the housing 1, and the same group of stop blocks 17 are distributed in a circumferential array along the housing 1.

[0044] Reference Figure 1 A stop surface 171 is formed on the end surface of the stop block 17, and the stop surface 171 is inclined in the direction away from the housing 1 in the installation direction of the installation cover 2. The stop surface 171 is located in the insertion path of the fixing block 211, that is, when the fixing block 211 can be inserted into the stop hole 212 along the stop surface 171.

[0045] Reference Figure 1 , Figure 2 and Figure 3 The housing 1 is provided with a fixing groove 172 for inserting the fixing block 211. The fixing groove 172 is provided with a plurality of fixing grooves 172. The fixing groove 172 penetrates to the side of the housing 1 where the placement groove 14 or the receiving groove 15 is provided. The housing 1 is provided with a disengagement groove 173 connected to the fixing groove 172. The disengagement groove 173 is provided with a plurality of disengagement grooves 173. The fixing block 211 is taken out of the fixing groove 172.

[0046] The implementation principle of the embodiment 1 is as follows: when the fixing block 211 is inserted into the fixing groove 172 , the fixing block 211 is moved along the stop surface 171 , and the stop block 17 is inserted into the stop hole 212 , so that the mounting cover 2 and the housing 1 are fixed to each other.

[0047] Example 2

[0048] Reference Figure 4 and Figure 5 The difference between this embodiment and the first embodiment is that the fixing member 21 includes a limiting block 22 and an ejecting block 23, and the limiting block 22 is fixedly connected to the mounting cover 2. An ejecting hole 221 is provided on the end surface of the limiting block 22 for the ejecting block 23 to be inserted.

[0049] Reference Figure 5 The end surfaces on opposite sides of the housing 1 are provided with limit slots 18 for inserting the limit blocks 22, and a plurality of limit slots 18 are provided. The groove wall of the limit slot 18 is provided with a sliding slot 181, and a sliding plate 24 is slidably connected in the sliding slot 181.

[0050] Reference Figure 5 The end surface of the sliding plate 24 is provided with an ejection slot 241, and an ejection member 242 is provided in the ejection slot 241. The ejection member 242 includes a spring. In other embodiments, the ejection member 242 may be other elastic structures. One end of the spring is fixedly connected to the bottom wall of the ejection slot 241, and the other end of the spring is fixedly connected to the ejection block 23. When the ejection block 23 is inserted into the ejection hole 221, the spring is in a normal state, that is, the spring drives the ejection block 23 to be inserted into the ejection hole 221.

[0051] Reference Figure 5 and Figure 6 The housing 1 is provided with a plurality of operating holes 182, and the operating holes 182 are all connected to the sliding groove 181. An operating block 243 is fixedly connected to the end surface of the sliding plate 24, and the operating block 243 is used to drive the sliding plate 24 to move in the sliding groove 181. The ejection block 23 has an inclined surface, and when the ejection block 23 is located in the ejection hole 221, the inclined surface is inclined toward the opening direction of the limiting groove 18 and the sliding direction of the sliding plate 24, and the inclined surface is always located in the ejection groove 241.

[0052] Reference Figure 5 and Figure 6 The end surface of the limit block 22 has a limit surface 222. When the limit block 22 is located in the limit groove 18, the limit surface 222 is inclined toward the opening direction of the limit groove 18 and the direction of the sliding groove 181, and the limit surface 222 can drive the ejection block 23 to be located in the ejection groove 241.

[0053] The implementation principle of Example 2 is as follows: the staff drives the limit block 22 to be inserted into the limit groove 18, and allows the pop-up block 23 to move along the limit surface 222, so that the pop-up block 23 can be located in the pop-up groove 241, until the pop-up groove 241 is aligned with the pop-up hole 221, and the pop-up block 23 is inserted into the pop-up hole 221, so that the pop-up block 23 fixes the limit block 22.

[0054] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0055] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A three-phase relay, comprising a housing (1), wherein a driving member (11) is provided on the housing (1), characterized in that: Three moving plates (12) and three stationary plates (13) are arranged in the shell (1), a moving plate (16) is arranged on the shell (1), and the driving member (11) realizes the separation or abutment of the moving plates (12) and the stationary plates (13) through the moving plate (16).

2. A three-phase relay according to claim 1, characterized in that: The moving plate (12) is provided with a first bending portion (121), and the static plate (13) is provided with a second bending portion (131); the first bending portion (121) and the second bending portion (131) are respectively located on two sides of the shell (1).

3. A three-phase relay according to claim 1, characterized in that: The movable plate (16) is provided with a first movable block (161) and a second movable block (162); the first movable block (161) is used for driving the movable plate (12) to move toward the static plate (13); and the second movable block (162) is used for driving the movable plate (12) to separate from the static plate (13).

4. A three-phase relay according to claim 1, characterized in that: The housing (1) is provided with a placement groove (14) and a receiving groove (15), the placement groove (14) is used to place the driving member (11), and the receiving groove (15) is used to place the moving plate (12) and the static plate (13), and the housing (1) is provided with a through hole (141), and the through hole (141) is used for the moving plate (16) to pass through.

5. A three-phase relay according to claim 4, characterized in that: The shell (1) is provided with two installation covers (2), the installation covers (2) are used to cover the opening of the placement groove (14) or the receiving groove (15), and the installation covers (2) are provided with fixing parts (21), and the fixing parts (21) are used to limit the separation of the installation covers (2) from the shell (1).

6. A three-phase relay according to claim 5, characterized in that: The fixing member (21) comprises a fixing block (211), the fixing block (211) is arranged on the mounting cover (2), a stop hole (212) is provided on the fixing block (211), and a stop block (17) is provided on the shell (1). When the stop block (17) is located in the stop hole (212), the fixing block (211) and the shell (1) are fixed to each other.

7. A three-phase relay according to claim 5, characterized in that: The fixing member (21) comprises a limit block (22), the limit block (22) is arranged on the mounting cover (2), and the housing (1) is provided with a limit groove (18) for the limit block (22) to be inserted into. When the limit block (22) is inserted into the limit groove (18), the mounting cover (2) is fixed on the housing (1).

8. A three-phase relay according to claim 7, characterized in that: The fixing member (21) further comprises an ejection block (23); the housing (1) is provided with an ejection member (242); the limiting block (22) is provided with an ejection hole (221) for inserting the ejection block (23); the ejection member (242) drives the ejection block (23) to be inserted into the ejection hole (221); when the ejection block (23) is inserted into the ejection hole (221), the limiting block (22) is located in the limiting groove (18).

9. A three-phase relay according to claim 8, characterized in that: The housing (1) is slidably connected to a sliding plate (24), the ejection member (242) is arranged on the sliding plate (24), and the ejection block (23) has an inclined surface. When the ejection block (23) is inserted into the ejection hole (221), the inclined surface is inclined in the direction of the sliding direction of the sliding plate (24) and in the direction of the limiting groove (18).

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