Forward and reverse rotation control device

Abstract

The embodiment of the invention provides a forward and reverse rotation control device for electric equipment, and the device comprises a first input part which is suitable for being electrically connected with a first power supply line; the second input part is suitable for being electrically connected with a second power supply line; the first output part and the second output part are suitable for being connected to the input end of the electric equipment; and a moving assembly capable of switching between a first connection position and a second connection position, in the case that the moving assembly is in the first connection position, the moving assembly connects the first input piece to the first output piece and connects the second input piece to the second output piece, in the case that the moving assembly is in the second connection position, and in the case that the moving assembly is in the second connection position, the moving assembly connects the first input piece to the first output piece and connects the second input piece to the second output piece. When the moving assembly is in the first connecting position, the moving assembly connects the first input piece to the second output piece and connects the second input piece to the first output piece under the condition that the moving assembly is in the second connecting position.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the technical field of electrical equipment, and more specifically, to a forward and reverse rotation control device for electrical equipment. Background Art

[0002] The forward and reverse rotation of the motor is determined by the phase sequence of the motor's windings. The motor is divided into three-phase motors according to the phase composition. For example, a three-phase motor has three phase circuits, namely phase A, phase B and phase C. Under normal circumstances, the phase sequence of the motor's windings is ABC, and this phase sequence makes the motor rotate forward. In the case where the motor needs to rotate in the reverse direction, it is necessary to change the phase sequence of the motor's windings to CBA through a forward and reverse control device.

[0003] A conventional forward and reverse control device usually includes two contactors, and an interlocking module needs to be installed between the two contactors to prevent the input component and each output component from being turned on at the same time. As a result, the conventional forward and reverse control device is too large and easily occupies the installation space, and the wiring between the conventional forward and reverse control devices is complicated. Summary of the invention

[0004] An object of the present disclosure is to provide a forward and reverse rotation control device to at least partially solve the above problems.

[0005] The present disclosure provides a forward and reverse control device for an electrical device, the forward and reverse control device comprising a first input member, suitable for being electrically connected to a first power supply line; a second input member, suitable for being electrically connected to a second power supply line; a first output member and a second output member, suitable for being connected to an input end of the electrical device; and a moving component, the moving component being capable of switching between a first connection position and a second connection position, wherein when the moving component is in the first connection position, the moving component connects the first input member to the first output member and connects the second input member to the second output member, and when the moving component is in the second connection position, the moving component connects the first input member to the second output member and connects the second input member to the first output member.

[0006] According to an embodiment of the present disclosure, when the moving component is in the first connection position, the first input member is connected to the first output member, and the second input member is connected to the second output member; and when the moving component is in the second connection position, the first input member is connected to the second output member, and the second input member is connected to the first output member. Therefore, the forward and reverse control device of the embodiment of the present disclosure can change the phase sequence of the winding of the motor by changing the different connection relationships between the input member and the output member, thereby controlling the forward and reverse rotation of the motor, and no matter whether the moving component is in the first connection position or the second connection position, each input member is only connected to a corresponding output member, and there is no need to install an interlocking module. The forward and reverse control device has a simple structure and does not occupy an installation space. In addition, since the first input member is electrically connected to the first power supply line, the second input member is electrically connected to the second power supply line, and the first output member and the second output member are connected to the input end of the electrical equipment, the forward and reverse control device of the embodiment of the present disclosure has simple wiring.

[0007] In some embodiments, the forward and reverse control device also includes a third input component and a third output component, the third input component is suitable for being electrically connected to a third power supply line, the third output component is suitable for being connected to the input end of the electrical equipment, and the third input component is connected to the third output component.

[0008] In some embodiments, the first input member includes a first input end and a first connection portion connected to the first input end, the second input member includes a second input end and a second connection portion connected to the second input end, the first output member includes a first output end and a third connection portion connected to the first output end, and the second output member includes a second output end and a fourth connection portion connected to the second output end, wherein when the moving component is in the first connection position, the moving component connects the first connection portion to the third connection portion and connects the second connection portion to the fourth connection portion, and when the moving component is in the second connection position, the moving component connects the first connection portion to the fourth connection portion and connects the second connection portion to the third connection portion.

[0009] In some embodiments, the forward and reverse control device further includes a driving component, and the driving component is connected to the moving component to drive the moving component to switch between the first connection position and the second connection position.

[0010] In some embodiments, the moving component includes a drive shaft and a first mounting portion and a second mounting portion connected to the drive shaft. The drive component is connected to the drive shaft and can drive the drive shaft to move along its axial direction so that the first mounting portion and the second mounting portion can move with the drive shaft.

[0011] In some embodiments, a first conductive member and a second conductive member are provided on the first mounting portion, a third conductive member and a fourth conductive member are provided on the second mounting portion, and along the axial direction of the drive shaft, the first end of the first conductive member is provided corresponding to the first end of the first connecting portion and the second end of the first conductive member is provided corresponding to the first end of the third connecting portion, the first end of the second conductive member is provided corresponding to the first end of the fourth connecting portion and the second end of the second conductive member is provided corresponding to the first end of the second connecting portion, the first end of the third conductive member is provided corresponding to the second end of the first connecting portion and the second end of the third conductive member is provided corresponding to the second end of the fourth connecting portion, the first end of the fourth conductive member is provided corresponding to the second end of the third connecting portion and the second end of the fourth conductive member is provided corresponding to the second end of the second connecting portion.

[0012] In some embodiments, when the moving component is in the first connection position, the first conductive member connects the first connection part to the third connection part, and the second conductive member connects the second connection part to the fourth connection part; when the moving component is in the second connection position, the third conductive member connects the first connection part to the fourth connection part, and the fourth conductive member connects the second connection part to the third connection part.

[0013] In some embodiments, a first mounting hole and a second mounting hole are provided on the first mounting portion, a third mounting hole and a fourth mounting hole are provided on the second mounting portion, the first conductive member is provided in the first mounting hole, the second conductive member is provided in the second mounting hole, the third conductive member is provided in the third mounting hole, and the fourth conductive member is provided in the fourth mounting hole.

[0014] In some embodiments, along the axial direction of the drive shaft, the drive assembly is located between the first mounting portion and the second mounting portion, a first elastic member is arranged in the first mounting hole, one end of the first elastic member is connected to the inner wall surface of the first mounting hole, and the other end is arranged on the side of the first conductive member away from the drive assembly, and the first conductive member can move in the first mounting hole to squeeze the first elastic member.

[0015] In some embodiments, the drive assembly includes one of a bistable permanent magnet mechanism, an electric push rod, a hydraulic push rod, and an electromagnetic push rod.

[0016] In some embodiments, the forward and reverse control device also includes a first shell and a sensor, and the sensor is arranged inside or outside the first shell to detect the position of the drive shaft, wherein when the sensor is arranged outside the first shell, the drive shaft passes through the first shell.

[0017] It should be understood that the content described in this section is not intended to limit the key features or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0019] Figure 1 A schematic structural diagram of a forward and reverse rotation control device according to some embodiments of the present disclosure is shown;

[0020] Figure 2 A schematic diagram showing the structure of a moving assembly and a driving assembly according to some embodiments of the present disclosure is shown;

[0021] Figure 3 A schematic diagram showing the structure of an input member and an output member according to some embodiments of the present disclosure is shown;

[0022] Figure 4 A schematic diagram of the structure of an input member, an output member, a driving assembly, and a portion of a moving assembly according to some embodiments of the present disclosure is shown, wherein the moving assembly is in a first connection position, and a first mounting portion and a second mounting portion of the moving assembly are not shown;

[0023] Figure 5 A schematic diagram of the structure of an input member, an output member, a driving assembly, and a portion of a moving assembly according to some embodiments of the present disclosure is shown, wherein the moving assembly is in a second connection position, and a first mounting portion and a second mounting portion of the moving assembly are not shown;

[0024] Figure 6 A cross-sectional view of a drive assembly and drive shaft is shown according to some embodiments of the present disclosure.

[0025] Description of reference numerals:

[0026] 100 is a forward and reverse control device;

[0027] 11 is a first input member, 111 is a first input end, 112 is a first connecting portion, 12 is a second input member, 121 is a second input end, and 122 is a second connecting portion;

[0028] 21 is a first output member, 211 is a first output end, 212 is a third connection portion, 22 is a second output member, 221 is a second output end, and 222 is a fourth connection portion;

[0029] 3 is a moving component, 31 is a driving shaft, 32 is a first mounting portion, 321 is a first conducting member, 322 is a second conducting member, 323 is a first mounting hole, 324 is a first elastic member, 325 is a second mounting hole, 326 is a second elastic member, 33 is a second mounting portion, 331 is a third conducting member, 332 is a fourth conducting member, 333 is a third mounting hole, 334 is a third elastic member, 335 is a fourth mounting hole, and 336 is a fourth elastic member;

[0030] 4 is a driving assembly, 41 is a second housing, 42 is a coil, 43 is a moving iron core, 44 is a first magnetic conductor, 45 is a second magnetic conductor, 46 is a permanent magnet, and 47 is a motion space;

[0031] 5 is a first shell. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0033] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects.

[0034] As described above, a conventional forward and reverse control device needs to be equipped with an interlocking module to prevent the input component from being connected to each output component at the same time during the process of adjusting the forward and reverse rotation of the motor, which causes problems of occupying installation space and complicated wiring. The embodiment of the present disclosure provides a forward and reverse control device 100, which can change the phase sequence of the motor windings by changing the different connection relationships between the input component and the output component, thereby controlling the forward and reverse rotation of the motor, and no matter whether the moving component is in the first connection position or the second connection position, each input component is only connected to a corresponding output component, and there is no need to install an interlocking module. The forward and reverse control device 100 has a simple structure and does not occupy installation space. In addition, since the input component is electrically connected to the power supply line and the output component is connected to the input end of the electrical equipment, the forward and reverse control device 100 of the embodiment of the present disclosure has simple wiring. In the following, it will be combined with Figures 1 to 6 The principles of the present disclosure are described.

[0035] Figure 1 A schematic structural diagram of a forward and reverse rotation control device 100 according to some embodiments of the present disclosure is shown. Figure 2 A schematic structural diagram of a moving assembly 3 and a driving assembly 4 according to some embodiments of the present disclosure is shown. Figure 3 Schematic diagrams of the structure of input components and output components according to some embodiments of the present disclosure are shown. Figures 1 to 3 As shown, the forward and reverse control device 100 described herein generally includes a first housing 5, a first input member 11, a second input member 12, a first output member 21, a second output member 22, a moving assembly 3, and a driving assembly 4. The first housing 5 serves as a mounting carrier, which is used to set the first input member 11, the second input member 12, the first output member 21, the second output member 22, the moving assembly 3, and the driving assembly 4.

[0036] like Figure 1 As shown, in some embodiments, the first input member 11 is connected to the first power supply line, and the second input member 12 is connected to the second power supply line. The first output member 21 and the second output member 22 are respectively connected to the input end of the power-consuming device. With the above configuration, the forward and reverse control device 100 of the embodiment of the present disclosure has simple wiring.

[0037] It should be understood that the forward and reverse control device 100 of the embodiment of the present disclosure is applicable to various types of motors. For example, in other embodiments, when the number of input parts and output parts is three, that is, when the input parts include a first input part 11, a second input part 12 and a third input part (not shown in the figure), and the output parts include a first output part 21, a second output part 22 and a third output part (not shown in the figure), the forward and reverse control device 100 is applicable to a three-phase motor. In this applicable scenario, the third input part is electrically connected to the third power supply line, the third output part is connected to the input end of the electrical equipment, and the third input part is always connected to the third output part. In the following, the forward and reverse control device 100 will be mainly described as being applicable to two phases in a three-phase motor. It is similar for other situations and will not be described separately in the following.

[0038] It should be noted that the forward and reverse control device 100 can change the phase sequence of the motor windings by simply changing the connection relationship between two sets of input components (the first input component 11 and the second input component 12) and output components (the first output component 21 and the second output component 22) without changing the connection relationship between all three sets of input components and output components.

[0039] In some embodiments, the third input member and the third output member can pass through the first housing 5 and form a whole with the first housing 5. In other embodiments, the third input member and the third output member can also not pass through the first housing 5, but be disposed separately from the first housing 5.

[0040] like Figure 2 As shown, in some embodiments, the moving component 3 can switch between the first connection position and the second connection position to change the connection relationship between the first input member 11 and the second input member 12 and the second input member 21 and the second output member 22. When the moving component 3 is in the first connection position, the moving component 3 connects the first input member 11 to the first output member 21 and the second input member 12 to the second output member 22. When the moving component 3 is in the second connection position, the moving component 3 connects the first input member 11 to the second output member 22 and the second input member 12 to the first output member 21. With the above configuration, the forward and reverse control device 100 of the embodiment of the present disclosure can change the phase sequence of the winding of the motor by changing the different connection relationships between the input member and the output member, thereby controlling the forward and reverse rotation of the motor, and no matter whether the moving component is in the first connection position or the second connection position, each input member is only connected to a corresponding output member, and there is no need to install an interlocking module. The forward and reverse control device 100 has a simple structure and does not occupy an installation space.

[0041] Continue as Figure 2As shown, in some embodiments, the moving assembly 3 includes a driving shaft 31 and a first mounting portion 32 and a second mounting portion 33 connected to the driving shaft 31. The driving assembly 4 is connected to the driving shaft 31, and the driving assembly 4 can drive the driving shaft 31 to move along its axial direction, so that the first mounting portion 32 and the second mounting portion 33 can move with the driving shaft 31, so that the moving assembly 3 can switch between the first connection position and the second connection position.

[0042] like Figure 3 As shown, in some embodiments, the first input member 11 includes a first input terminal 111 and a first connection portion 112 connected to the first input terminal 111, and the first input terminal 111 is electrically connected to the first power supply line. The second input member 12 includes a second input terminal 121 and a second connection portion 122 connected to the second input terminal 121, and the second input terminal 121 is electrically connected to the second power supply line. The first output member 21 includes a first output terminal 211 and a third connection portion 212 connected to the first output terminal 211, and the first output terminal 211 is suitable for connecting to the input terminal of the electrical device. The second output member 22 includes a second output terminal 221 and a fourth connection portion 222 connected to the second output terminal 221, and the second output terminal 221 is suitable for connecting to the input terminal of the electrical device. Similarly, the third input member includes a third input terminal and a fifth connection portion connected to the third input terminal, and the third input terminal is electrically connected to the third power supply line. The third output member includes a third output terminal and a sixth connection portion connected to the third output terminal, and the third output terminal is suitable for connecting to the input terminal of the electrical device.

[0043] Continue as Figure 3 As shown, it should be noted that the positional relationship between the input member and the output member can be changed as needed. As long as it can be ensured that when the moving component 3 is in the first connection position, the first input member 11 is connected to the first output member 21 and the second input member 12 is connected to the second output member 22, when the moving component 3 is in the second connection position, the moving component 3 connects the first input member 11 to the second output member 22 and connects the second input member 12 to the first output member 21.

[0044] Continue as Figures 2 to 3 As shown, when the moving component 3 is in the first connection position, the moving component 3 connects the first connection part 112 to the third connection part 212 and connects the second connection part 122 to the fourth connection part 222. When the moving component 3 is in the second connection position, the moving component 3 connects the first connection part 112 to the fourth connection part 222 and connects the second connection part 122 to the third connection part 212.

[0045] In some embodiments, Figure 4A schematic structural diagram of an input member, an output member, a driving assembly 4 and a portion of a moving assembly 3 according to some embodiments of the present disclosure is shown, wherein the moving assembly 3 is in a first connection position, and the first mounting portion 32 and the second mounting portion 33 of the moving assembly 3 are not shown. Figure 5 A schematic structural diagram of an input member, an output member, a driving assembly 4 and a portion of a moving assembly 3 according to some embodiments of the present disclosure is shown, wherein the moving assembly is in a second connection position and the first mounting portion 32 and the second mounting portion 33 of the moving assembly 3 are not shown. Figures 4 to 5 The first mounting portion 32 and the second mounting portion 33 of the moving component 3 are not shown in the figure to avoid blocking the input component and the output component, thereby better showing the connection relationship between the moving component 3 and the input component and the output component. Figures 2 to 5 As shown, the first mounting portion 32 is provided with a first conductive member 321 and a second conductive member 322, and the second mounting portion 33 is provided with a third conductive member 331 and a fourth conductive member 332. Along the axial direction of the drive shaft 31, the first end of the first conductive member 321 is provided corresponding to the first end of the first connection portion 112, and the second end of the first conductive member 321 is provided corresponding to the first end of the third connection portion 212. The first end of the second conductive member 322 is provided corresponding to the first end of the fourth connection portion 222, and the second end of the second conductive member 322 is provided corresponding to the first end of the second connection portion 122. The first end of the third conductive member 331 is provided corresponding to the second end of the first connection portion 112, and the second end of the third conductive member 331 is provided corresponding to the second end of the fourth connection portion 222. The first end of the fourth conductive member 332 is provided corresponding to the second end of the third connection portion 212, and the second end of the fourth conductive member 332 is provided corresponding to the second end of the second connection portion 122.

[0046] Using the above configuration, on the one hand, if Figure 4As shown, along the axial direction of the driving shaft 31, when the moving assembly 3 is in the first connection position, the first end of the first conductive member 321 is connected to the first end of the first connection portion 112, and the second end of the first conductive member 321 is connected to the first end of the third connection portion 212. The first end of the second conductive member 322 is connected to the first end of the fourth connection portion 222, and the second end of the second conductive member 322 is connected to the first end of the second connection portion 122. The first end of the third conductive member 331 is spaced apart from the second end of the first connection portion 112, and the second end of the third conductive member 331 is spaced apart from the second end of the fourth connection portion 222. The first end of the fourth conductive member 332 is spaced apart from the second end of the third connection portion 212, and the second end of the fourth conductive member 332 is spaced apart from the second end of the second connection portion 122. Therefore, the first conductive member 321 connects the first connection part 112 to the third connection part 212, and the first input terminal 111, the first connection part 112, the first conductive member 321, the third connection part 212 and the first output terminal 211 form a path, that is, the first input member 11 is connected to the first output member 21. In addition, the second conductive member 322 connects the second connection part 122 to the fourth connection part 222, and the second input terminal 121, the second connection part 122, the second conductive member 322, the fourth connection part 222 and the second output terminal 221 form a path, that is, the second input member 12 is connected to the second output member 22.

[0047] On the other hand, Figure 5 As shown, along the axial direction of the driving shaft 31, when the moving assembly 3 is in the second connection position, the first end of the first conductive member 321 is spaced apart from the first end of the first connection portion 112, and the second end of the first conductive member 321 is spaced apart from the first end of the third connection portion 212. The first end of the second conductive member 322 is spaced apart from the first end of the fourth connection portion 222, and the second end of the second conductive member 322 is spaced apart from the first end of the second connection portion 122. The first end of the third conductive member 331 is connected to the second end of the first connection portion 112, and the second end of the third conductive member 331 is connected to the second end of the fourth connection portion 222. The first end of the fourth conductive member 332 is connected to the second end of the third connection portion 212, and the second end of the fourth conductive member 332 is connected to the second end of the second connection portion 122. Therefore, the third conductive member 331 connects the first connection part 112 to the fourth connection part 222, and the first input terminal 111, the first connection part 112, the third conductive member 331, the fourth connection part 222 and the second output terminal 221 form a path, that is, the first input member 11 is connected to the second output member 22. In addition, the fourth conductive member 332 connects the second connection part 122 to the third connection part 212, and the second input terminal 121, the second connection part 122, the fourth conductive member 332, the third connection part 212 and the first output terminal 211 form a path, that is, the second input member 12 is connected to the first output member 21.

[0048] It should be noted that the first input member 11, the second input member 12, the first output member 21 and the second output member 22 are not limited to Figure 3 As shown in the structure, other structural features are also possible, as long as it can be ensured that when the moving component 3 is in the first connection position and the second connection position, the connection relationship between the first input member 11 and the second input member 12 and the first output member 21 and the second output member 22 satisfies Figure 3 The connection relationship of the structure shown is sufficient.

[0049] In summary, the embodiments of the present disclosure change the connection relationship between the first input member 11 and the second input member 12 and the first output member 21 and the second output member 22 by changing the different positions of the moving component 3, thereby changing the phase sequence of the motor windings, and finally achieving the requirement of controlling the forward and reverse rotation of the motor.

[0050] Continue as Figures 2 to 5 As shown, in some embodiments, the first end and the second end of the first conductive member 321 facing the first input member 11 are both provided with a first contact. The first end and the second end of the second conductive member 322 facing the first input member 11 are both provided with a first contact. The first end and the second end of the third conductive member 331 facing the first input member 11 are both provided with a first contact. The first end and the second end of the fourth conductive member 332 facing the first input member 11 are both provided with a first contact. Similarly, the first end and the second end of the first input member 11, the second input member 12, the first output member 21 and the second output member 22 are also provided with second contacts that match the corresponding first contacts to ensure that they meet the tight fit requirements when in contact with each other.

[0051] Back to Figure 2 As shown, in some embodiments, the first mounting portion 32 is provided with a first mounting hole 323 and a second mounting hole 325. The second mounting portion 33 is provided with a third mounting hole 333 and a fourth mounting hole 335. The first conductive member 321 is disposed in the first mounting hole 323. The second conductive member 322 is disposed in the second mounting hole 325. The third conductive member 331 is disposed in the third mounting hole 333. The fourth conductive member 332 is disposed in the fourth mounting hole 335.

[0052] In some embodiments, along the axial direction of the drive shaft 31, when the drive assembly 4 is located between the first mounting portion 32 and the second mounting portion 33, a first elastic member 324 is disposed in the first mounting hole 323. One end of the first elastic member 324 is connected to the inner wall surface of the first mounting hole 323, and the other end is disposed on a side of the first conductive member 321 away from the drive assembly 4. Figure 4As shown, when the moving assembly 3 moves along the axial direction of its driving shaft 31, in a certain intermediate state during the movement, the first conductive member 321 just contacts the first connecting portion 112 and the third connecting portion 212. At this time, the moving assembly 3 continues to move along the axial direction of its driving shaft 31, and the first conductive member 321 can move in the first mounting hole 323 and squeeze the first elastic member 324. The reaction force of the first elastic member 324 makes the first conductive member 321 contact the first connecting portion 112 and the third connecting portion 212 more closely. Similarly, a second elastic member 326 is arranged in the second mounting hole 325. One end of the second elastic member 326 is connected to the inner wall surface of the second mounting hole 325, and the other end is arranged on the side of the second conductive member 322 away from the driving assembly 4. A third elastic member 334 is arranged in the third mounting hole 333. One end of the third elastic member 334 is connected to the inner wall surface of the third mounting hole 333, and the other end is arranged on the side of the third conductive member 331 away from the driving assembly 4. A fourth elastic member 336 is disposed in the fourth mounting hole 335. One end of the fourth elastic member 336 is connected to the inner wall surface of the fourth mounting hole 335, and the other end is disposed on the side of the fourth conductive member 332 away from the driving assembly 4. The effects of the second elastic member 326, the third elastic member 334 and the fourth elastic member 336 are similar to those of the first elastic member 324, and are all required to ensure that the conductive member and the connecting portion are closely fitted, and will not be described separately here.

[0053] Specifically, the forward and reverse control device 100 further includes a sensor (not shown in the figure), which can be arranged inside or outside the first housing 5. The sensor is used to detect the position of the drive shaft 31. That is, the sensor can detect whether the moving component 3 is in the first connection position and the second connection position, and then the controller connected to the sensor can judge whether the moving component 3 is in the first connection position or the second connection position.

[0054] In some embodiments, the sensor is disposed outside the first housing 5. And in the case where the sensor is disposed outside the first housing 5, the drive shaft 31 passes through the first housing 5. Figure 1 As shown, in some other embodiments, the sensor is disposed inside the first housing 5 .

[0055] In some embodiments, the drive component 4 is connected to the mobile component 3. The drive component 4 can drive the mobile component 3 to switch between the first connection position and the second connection position, thereby controlling the forward and reverse rotation of the motor. According to the drive component 4 of the embodiment of the present disclosure, it can be various types of drive components 4 that are currently known or available in the future. As long as it can drive the mobile component 3 to move, the embodiment of the present disclosure is not limited to this. For example, in some embodiments, the drive component 4 may include a bistable permanent magnet mechanism. In some embodiments, the drive component 4 may also include a dual-coil permanent magnet mechanism, an electric push rod, a hydraulic push rod or an electromagnetic push rod. In the following, the working principle will be mainly described in the scenario where the drive component 4 includes a bistable permanent magnet mechanism. Other situations will not be described separately in the following.

[0056] It should be noted that, when the drive assembly 4 includes a bistable permanent magnet mechanism, the drive assembly 4 is located between the first mounting portion 32 and the second mounting portion 33. When the drive assembly 4 includes an electric push rod, a hydraulic push rod or an electromagnetic push rod, the drive assembly 4 is located at an end of the first mounting portion 32 away from the second mounting portion 33, or at an end of the second mounting portion 33 away from the first mounting portion 32.

[0057] In some embodiments, Figure 6 4 and a cross-sectional view of the drive assembly 4 and the drive shaft 31 according to some embodiments of the present disclosure. Figure 6 As shown, the driving assembly 4 includes a bistable permanent magnet mechanism, and the bistable permanent magnet mechanism is located between the first mounting portion 32 and the second mounting portion 33 .

[0058] Continue as Figure 6 As shown, in some embodiments, the bistable permanent magnet mechanism includes a second housing 41, a coil 42, a moving iron core 43, a first magnet 44, a second magnet 45, a support frame 48 and two permanent magnets 46. The coil 42, the moving iron core 43, the first magnet 44, the second magnet 45, the permanent magnet 46 and the support frame 48 are all located in the second housing 41. The coil 42 and the permanent magnet 46 are both arranged inside the support frame 48. The permanent magnet 46 is arranged in the middle position of the coil 42, and a circular channel for the movement of the moving iron core 43 is arranged inside the support frame 48. Along the axial direction of the circular channel, the first magnet 44 is arranged at one end of the circular channel, the second magnet 45 is arranged at the other end of the circular channel, and the moving iron core 43 is located between the first magnet 44 and the second magnet 45, so that the support frame 48, the first magnet 44 and the second magnet 45 together constitute a motion space 47, so that the moving iron core 43 can move in the motion space 47.

[0059] It should be noted that the numbers, values, etc. mentioned above and elsewhere in the present disclosure are exemplary and are not intended to limit the scope of the present disclosure in any way. Any other appropriate numbers and values ​​are possible. The permanent magnet 46 can also include two or more. For example, when the permanent magnet 46 includes three, one side of the moving iron core 43 is provided with a permanent magnet 46, and the other side is provided with two permanent magnets 46. And for the case where the permanent magnet 46 includes more than three, the arrangement of the permanent magnet 46 is similar, and it will not be repeated here. In addition, the magnetic poles of the mutually close ends of the permanent magnets 46 on both sides should be the same.

[0060] Using the above configuration, if Figure 6 As shown, when the moving iron core 43 is adjacent to / fitted to the left side of the motion space 47, the permanent magnet 46, the first magnetizer 44, the second shell 41 and the moving iron core 43 form a first magnetic circuit, and the magnetic force generated by the first magnetic circuit of the permanent magnet 46 makes the moving iron core 43 adjacent to / fitted to the first magnetizer 44 and keeps the moving iron core 43 in this position. When it is necessary to move the moving iron core 43 in the bistable permanent magnet mechanism to the right along the motion space 47, a current in a certain direction is passed through the coil 42, and the direction of the electromagnetic field generated by the current through the coil 42 is opposite to the direction of the magnetic field generated by the permanent magnet 46 at the position where the moving iron core 43 and the first magnetizer 44 are adjacent to / fitted, so as to offset the magnetic field generated by the permanent magnet 46 and generate a rightward electromagnetic force on the moving iron core 43. The combined action of the electromagnetic force and the elastic member on the moving component 3 drives the moving iron core 43 to move to the right. When the moving iron core 43 moves to the position close to the second magnet 45, the permanent magnet 46, the second magnet 45, the second shell 41 and the moving iron core 43 form a second magnetic circuit. As the gap between the moving iron core 43 and the second magnet 45 decreases, the electromagnetic force of the coil 42 on the moving iron core 43 and the magnetic force of the second magnetic circuit of the permanent magnet 46 on the moving iron core 43 both increase, so that the moving iron core 43 accelerates to move to the right and reaches a position adjacent to / fitting the second magnet 45. When the current is stopped from being passed into the coil 42, the permanent magnet 46 keeps the moving iron core 43 in a position adjacent to / fitting the second magnet 45. Similarly, when the moving iron core 43 in the bistable permanent magnet mechanism needs to be moved to the left along the motion space 47, a reverse current is passed into the coil 42, and the embodiments of the present disclosure will not be described in detail. It can be understood that, on the one hand, the position movement of the moving iron core 43 can be achieved through the bistable permanent magnet mechanism, thereby realizing the switching of the moving component 3 between the first connection position and the second connection position. On the other hand, when the bistable permanent magnet mechanism stops supplying current to the coil 42 , the positions of the moving iron core 43 at both ends can be maintained by the permanent magnets 46 , and continuous power supply is not required, thereby reducing the cost of use.

[0061] In some embodiments, the drive shaft 31 can be made of a magnetically conductive material, such as the same material as the moving iron core 43. In other embodiments, the drive shaft 31 can also be made of a non-magnetically conductive material, which is not limited in the embodiments of the present disclosure.

[0062] In some embodiments, the number of the drive shaft 31 is one, and the drive shaft 31 passes through the moving iron core 43, and also passes through the second shell 41, the first magnetic conductor 44, and the second magnetic conductor 45. The drive shaft 31 can be formed integrally with the moving iron core 43, and can also be the same component as the moving iron core 43. In other embodiments, the number of the drive shaft 31 is two, and along the axial direction of the circular channel, the drive shafts 31 are respectively arranged at both ends of the moving iron core 43, and the arrangement method includes but is not limited to welding and connecting through a connector. The drive shaft 31 at one end of the moving iron core 43 passes through the second shell 41 and the first magnetic conductor 44, and the drive shaft 31 at the other end of the moving iron core 43 passes through the second shell 41 and the second magnetic conductor 45. With the above two configurations, the moving iron core 43 can drive the drive shaft 31 to move when it moves in the movement space 47.

[0063] The forward and reverse control device 100 according to the embodiment of the present disclosure can be applied to various motors, such as three-phase motors. It should be understood that the forward and reverse control device 100 according to the embodiment of the present disclosure can also be applied to other electrical equipment, and the embodiment of the present disclosure does not limit this.

[0064] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A forward and reverse rotation control device (100) for an electrical device, characterized in that: The forward and reverse rotation control device (100) comprises: A first input member (11), adapted to be electrically connected to a first power supply line; A second input member (12) adapted to be electrically connected to a second power supply line; A first output member (21) and a second output member (22) adapted to be connected to an input terminal of the electrical device; and A moving component (3), the moving component (3) being switchable between a first connection position and a second connection position, wherein when the moving component (3) is in the first connection position, the moving component (3) connects the first input member (11) to the first output member (21) and connects the second input member (12) to the second output member (22), and when the moving component (3) is in the second connection position, the moving component (3) connects the first input member (11) to the second output member (22) and connects the second input member (12) to the first output member (21).

2. The forward and reverse control device (100) according to claim 1, characterized in that: The forward and reverse control device (100) further comprises a third input element and a third output element, wherein the third input element is suitable for being electrically connected to a third power supply line, and the third output element is suitable for being connected to an input end of the electrical equipment, and the third input element is connected to the third output element.

3. The forward and reverse control device (100) according to claim 1, characterized in that: The first input member (11) comprises a first input end (111) and a first connecting portion (112) connected to the first input end (111); the second input member (12) comprises a second input end (121) and a second connecting portion (122) connected to the second input end (121); the first output member (21) comprises a first output end (211) and a third connecting portion (212) connected to the first output end (211); the second output member (22) comprises a second output end (221) and a third connecting portion (212) connected to the second output end (221); Four connecting parts (222), wherein when the moving component (3) is in the first connecting position, the moving component (3) connects the first connecting part (112) to the third connecting part (212) and connects the second connecting part (122) to the fourth connecting part (222), and when the moving component (3) is in the second connecting position, the moving component (3) connects the first connecting part (112) to the fourth connecting part (222) and connects the second connecting part (122) to the third connecting part (212).

4. The forward and reverse rotation control device (100) according to claim 3, characterized in that: The forward and reverse rotation control device (100) further comprises a driving component (4), wherein the driving component (4) is connected to the moving component (3) to drive the moving component (3) to switch between the first connection position and the second connection position.

5. The forward and reverse rotation control device (100) according to claim 4, characterized in that: The moving component (3) comprises a driving shaft (31) and a first mounting portion (32) and a second mounting portion (33) connected to the driving shaft (31); the driving component (4) is connected to the driving shaft (31) and is capable of driving the driving shaft (31) to move along its axial direction, so that the first mounting portion (32) and the second mounting portion (33) can move along with the driving shaft (31).

6. The forward and reverse rotation control device (100) according to claim 5, characterized in that: The first mounting portion (32) is provided with a first conductive member (321) and a second conductive member (322), the second mounting portion (33) is provided with a third conductive member (331) and a fourth conductive member (332), and along the axial direction of the drive shaft (31), the first end of the first conductive member (321) is arranged corresponding to the first end of the first connecting portion (112), the second end of the first conductive member (321) is arranged corresponding to the first end of the third connecting portion (212), the first end of the second conductive member (322) is arranged corresponding to the first end of the fourth connecting portion (222), and the second end of the first conductive member (321) is arranged corresponding to the first end of the third connecting portion (212). The first end of the second conductive member (322) is arranged correspondingly and the second end of the second connecting portion (122) is arranged correspondingly, the first end of the third conductive member (331) is arranged correspondingly to the second end of the first connecting portion (112) and the second end of the third conductive member (331) is arranged correspondingly to the second end of the fourth connecting portion (222), the first end of the fourth conductive member (332) is arranged correspondingly to the second end of the third connecting portion (212) and the second end of the fourth conductive member (332) is arranged correspondingly to the second end of the second connecting portion (122).

7. The forward and reverse rotation control device (100) according to claim 6, characterized in that: When the moving component (3) is in the first connection position, the first conductive member (321) connects the first connection part (112) to the third connection part (212), and the second conductive member (322) connects the second connection part (122) to the fourth connection part (222); when the moving component (3) is in the second connection position, the third conductive member (331) connects the first connection part (112) to the fourth connection part (222), and the fourth conductive member (332) connects the second connection part (122) to the third connection part (212).

8. The forward and reverse rotation control device (100) according to claim 6, characterized in that: The first mounting portion (32) is provided with a first mounting hole (323) and a second mounting hole (325), the second mounting portion (33) is provided with a third mounting hole (333) and a fourth mounting hole (335), the first conductive member (321) is arranged in the first mounting hole (323), the second conductive member (322) is arranged in the second mounting hole (325), the third conductive member (331) is arranged in the third mounting hole (333), and the fourth conductive member (332) is arranged in the fourth mounting hole (335).

9. The forward and reverse rotation control device (100) according to claim 8, characterized in that: Along the axial direction of the drive shaft (31), the drive assembly (4) is located between the first mounting portion (32) and the second mounting portion (33); a first elastic member (324) is arranged in the first mounting hole (323); one end of the first elastic member (324) is connected to the inner wall surface of the first mounting hole (323); the other end is arranged on a side of the first conductive member (321) away from the drive assembly (4); the first conductive member (321) can move in the first mounting hole (323) to squeeze the first elastic member (324).

10. The forward and reverse rotation control device (100) according to claim 4, characterized in that: The driving component (4) comprises one of a bistable permanent magnet mechanism, an electric push rod, a hydraulic push rod and an electromagnetic push rod.

11. The forward and reverse rotation control device (100) according to claim 5, characterized in that: The forward and reverse control device (100) also includes a first housing (5) and a sensor, wherein the sensor is arranged inside or outside the first housing (5) to detect the position of the drive shaft (31), wherein when the sensor is arranged outside the first housing (5), the drive shaft (31) passes through the first housing (5).

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