Rotating speed regulation switch module of motor, junction box assembly and pump

Abstract

The invention relates to the technical field of control switches of motors, and provides a rotating speed regulation switch module of a motor, a junction box assembly and a pump, the rotating speed regulation switch module of the motor comprises a base connecting plate and a speed regulation plug connector arranged on the base connecting plate, and the speed regulation plug connector is provided with a speed regulation plug interface; one end of the external connection sheet is connected to the speed regulation plug interface, and the other end of the external connection sheet is connected to a wire outlet interface of an internal winding of the motor; a gear control circuit is arranged in the speed regulator, and the speed regulator can be inserted into the speed regulation insertion port; and a plurality of external connection positions are arranged on the base connection plate, and the external connection positions are electrically connected with the speed regulation plug interface.

Description

Technical Field

[0001] The invention belongs to the technical field of motor control switches, and in particular relates to a motor speed regulating switch module, a junction box assembly and a pump. Background Art

[0002] The existing asynchronous motor pump speed regulating switch conventionally uses a rotary contact switch for speed regulation. The connection method between the output wires of the rotary contact switch and the windings inside the motor is as follows: according to the gear requirements of the motor, the windings inside the motor are connected in series or in parallel through connecting pieces inside the motor, and the output wire interface of the winding is connected to the connection point of the corresponding gear of the contact speed regulating switch during rotation. Because the gear setting of the motor depends on the series and parallel connection of multiple groups of windings inside the motor, and the multiple groups of windings inside the motor are connected by connecting pieces, there will be multiple connecting pieces inside the motor, resulting in a complex structure of the rotary contact switch and difficult production. In addition, due to the presence of multiple connecting pieces inside the motor, the motor has a large external size, and it is even impossible to achieve gear control of the motor within the limited space size, and it is impossible to achieve modular design.

[0003] Specifically, there are three-phase windings in the asynchronous motor. When the motor is in the first gear, the connection method of the windings inside the motor is that the first winding and the second winding are connected in series. When the motor is in the second gear, the connection method of the windings inside the motor is that the first winding and the second winding are connected in parallel. As a result, the windings inside the motor cannot be connected in series and in parallel at the same time, and the windings inside the motor cannot be connected in any way, which in turn limits the gear adjustment of the motor. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a motor speed regulating switch module, a junction box assembly and a pump. The motor speed regulating switch module does not require a connecting plate structure to be set inside the motor, and the motor speed regulating structure is modularly designed to reduce the structural size of the motor.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A motor speed regulating switch module, comprising:

[0007] A base connecting plate, and a speed regulating connector arranged on the base connecting plate, wherein the speed regulating connector is provided with a speed regulating plug interface;

[0008] An external connecting piece, one end of which is connected to the speed regulating plug interface, and the other end of which is connected to the outlet interface of the internal winding of the motor;

[0009] A speed regulator, which has a gear control circuit disposed therein, and the speed regulator can be plugged into the speed regulation interface;

[0010] External connection positions: a plurality of external connection positions are arranged on the base connection plate, and the external connection positions are electrically connected to the speed regulating plug interface.

[0011] Preferably, the external connection position includes a power connection position, a ground connection position, a start capacitor connection position and a sensor connection position.

[0012] Preferably, the speed regulating plug interface comprises three rows of wiring holes arranged in parallel, and the speed regulator is provided with a connecting piece, which can be plugged into the wiring holes, wherein one row of the wiring holes is electrically connected to the external connection position.

[0013] Preferably, the external connection position includes an L1 connection position, an L2 connection position, an L3 connection position, a ground connection position, a T1 connection position and a T2 connection position;

[0014] The L1 connection position, the L2 connection position, and the L3 connection position are connected to an external power supply;

[0015] The ground connection point is connected to a ground wire;

[0016] The T1 connection point and the T2 connection point can selectively connect a startup capacitor and / or a sensor component.

[0017] Preferably, the sensor connection position is used to connect a sensor component, and the sensor component includes a temperature control sensor connected to the sensor connection position.

[0018] Preferably, the speed regulator comprises:

[0019] A housing, wherein openings are provided on opposite sides of the housing;

[0020] A first drive board and a second drive board, both of which are arranged in the housing, the first drive board and the second drive board are arranged in parallel up and down, and a plurality of control gear position circuits are arranged in the first drive board and the second drive board;

[0021] At least one group of the connecting pieces are disposed on both the first driving plate and the second driving plate, one end of the connecting piece disposed on the first driving plate is connected to the first driving plate, and the other end extends to a side away from the second driving plate;

[0022] One end of the connecting piece provided on the second driving board is connected to the second driving board, and the other end thereof extends to a side away from the first driving board;

[0023] A group of control gear position circuits are arranged inside the first driving board and the second driving board corresponding to each group of connecting pieces;

[0024] One group of the connecting pieces arranged on the first driving board and the second driving board is plugged into the speed regulating plug interface.

[0025] Preferably, a first group of connecting plates is provided on the first driving board, and a second group of connecting plates and a third group of connecting plates are provided on the second driving board;

[0026] A first control gear position circuit for controlling a first gear position of the motor is disposed inside the first driving board, and the first control gear position circuit is electrically connected to the first group of connecting sheets;

[0027] A second control gear position circuit for controlling a second gear position of the motor and a third control gear position circuit for controlling a third gear position of the motor are arranged inside the second driving board;

[0028] The second control gear position circuit is connected to the second group of connecting pieces, and the third control gear position circuit is connected to the third group of connecting pieces.

[0029] Preferably, the first driving board and the second driving board are both covered with an injection-molded body, the connecting pieces on the first driving board and the second driving board pass through the injection-molded body, and the injection-molded body is arranged in the housing.

[0030] A junction box assembly comprises a motor speed regulating switch module and a junction box, wherein the motor speed regulating switch module is installed in the junction box, and the external connecting piece passes through the junction box and is connected to the outlet interface of the motor winding.

[0031] A pump comprises the junction box assembly.

[0032] Compared with the prior art, the present invention has the following beneficial effects: the external power supply of the speed regulating switch module of the motor in the present invention is connected to the external connection position, and is connected to the output line interface of the winding inside the motor through the circuit inside the base connecting plate, the speed regulator, and the external connecting piece, thereby realizing series and parallel output of the winding, and realizing quick and convenient connection with the external power supply.

[0033] The motor speed regulating switch module in the present invention can realize universal connection of three-phase electricity and two-phase electricity.

[0034] The speed regulating switch module of the motor in the present invention is modularly designed, and the speed regulator is modularly designed. Different speed regulators can be replaced according to actual needs, and can achieve control of multiple speeds and different phase sequences, thereby improving efficiency during mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a partial structural schematic diagram of the pump and junction box assembly in the present invention;

[0036] Figure 2 It is a partial structural schematic diagram of the pump in the present invention;

[0037] Figure 3 It is a structural schematic diagram of the speed regulating switch module of the motor in the present invention;

[0038] Figure 4 It is a schematic diagram of the exploded structure of the speed regulating switch module of the motor in the present invention;

[0039] Figure 5 It is a front view of the base connecting plate, the speed regulating connector and the external connection position in the present invention;

[0040] Figure 6 It is a structural schematic diagram of the base connecting plate, the speed regulating connector and the external connection position in the present invention;

[0041] Figure 7 Schematic diagram of the internal structure of the speed regulator in the present invention;

[0042] Figure 8 It is a structural schematic diagram of the first driving plate, the second driving plate and the connecting plate in the present invention;

[0043] Fig. 9 It is a front view of the speed regulator in the present invention (excluding the box cover);

[0044] Fig.10 It is a rear view of the speed regulator in the present invention (excluding the box cover);

[0045] Fig.11 is a schematic diagram of the gear positions of the speed regulator in the present invention;

[0046] Fig.12 It is a partial structural schematic diagram of the junction box assembly in the present invention.

[0047] Among them, 1. base connecting plate; 2. speed regulating connector; 20. speed regulating plug interface; 201. first row of wiring holes; 202. second row of wiring holes; 203. third row of wiring holes; 3. external connecting piece; 4. speed regulator; 41. housing; 42. first drive board; 43. second drive board; 44. box cover; 45. injection molding body; 401. first group of connecting pieces; 402. second group of connecting pieces; 403. third group of connecting pieces; 4011. first row of connecting pieces; 4012. second row of connecting pieces; 4013. third row of connecting pieces; 5. external connection position; 7. outlet interface. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0051] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0052] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0054] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0055] like Figure 1-Figure 12 As shown, in this embodiment, a speed regulating switch module of a motor is provided, which is mainly used for asynchronous motors. The speed regulating switch module of the above-mentioned motor includes a base connecting plate 1, a speed regulating connector 2, an external connecting piece 3, a speed regulator 4 and an external connecting position 5, wherein the speed regulating connector 2 is arranged on the base connecting plate 1, and a speed regulating plug interface 20 is arranged on the speed regulating connector 2.

[0056] One end of the external connection piece 3 is connected to the speed regulating plug interface 20, and the other end is connected to the outlet interface 7 of the internal winding of the motor.

[0057] A gear control circuit is provided inside the speed regulator 4 . The speed regulator 4 can be plugged into the speed regulation plug interface 20 . The speed regulator 4 is used to control the gear of the motor.

[0058] A plurality of external connection positions 5 are provided on the base connection plate 1 , and the external connection positions 5 are electrically connected to the speed regulating plug interface 20 .

[0059] Preferably, the external connection position 5 includes at least a power connection position, which is electrically connected to the speed control interface 20. The external connection position 5 also includes a start capacitor connection position and / or a sensor component connection position. Specifically, an internal connection piece is provided inside the bottom plate connection plate 1, and the internal connection piece is used to connect the external connection position 5 and the speed control interface 20.

[0060] Further preferably, the external connection position 5 in this embodiment includes a power connection position, a ground connection position, a start capacitor connection position and a sensor connection position. The external connection position 5 can be connected to an external power supply, a start capacitor and a sensor component.

[0061] With respect to the specific structure of the above-mentioned speed regulating plug-in interface 20, the speed regulating plug-in interface 20 of the speed regulating plug-in connector 2 includes three rows of wiring holes arranged in parallel, and a connecting piece is correspondingly arranged on the speed regulator 4, and the connecting piece can be plugged into the wiring hole, so that the speed regulator 4 is electrically connected to the bottom plate connecting plate 1, and one row of wiring holes is electrically connected to the external connection position 5. Specifically, an internal connecting piece is arranged inside the base connecting plate 1, one end of the internal connecting piece is electrically connected to the external connection position 5, and the other end is electrically connected to a row of wiring holes electrically connected to the external connection position 5. Preferably, the internal connecting piece is a copper foil. The other two rows of wiring holes are connected to the outlet interface 7 of the winding inside the motor through the external connecting piece, and the speed regulator 4 is plugged into the three rows of wiring holes. A control gear circuit is arranged inside the speed regulator 4 to control the speed of the motor.

[0062] Preferably, each row of wiring holes includes a plurality of wiring holes.

[0063] Preferably, the external connection position 5 includes at least three connection positions for connecting an external power source, the number of wiring holes in a row of wiring holes electrically connected to the external connection position 5 is the same as the number of connection positions, and each wiring hole corresponds to the position of the connection position one by one. Specifically, in this embodiment, the number of connection positions and wiring positions is six.

[0064] The power connection point can be connected to two-phase or three-phase power. Figure 3-Figure 6 As shown, the external connection position 5 in this embodiment includes an L1 connection position, an L2 connection position, an L3 connection position, a ground connection position, a T1 connection position and a T2 connection position, wherein the L1 connection position, the L2 connection position and the L3 connection position are used as power connection positions to connect an external power supply. The L1 connection position is also an L connection position, the L2 connection position is an N connection position, and the T1 connection position and the T2 connection position are used as a start capacitor connection position and a sensor connection position. The ground connection position is used to connect a ground wire. The T1 connection position and the T2 connection position can selectively connect a start capacitor and / or a sensor component. The T1 connection position and the T2 connection position are universal, and both the T1 connection position and the T2 connection position can be connected to a start capacitor or a sensor component. The T1 connection position and the T2 connection position can be selected according to actual needs.

[0065] When the external power supply of the asynchronous motor is two-phase 220V, the external connection position 5 used is L connection position, N connection position, ground connection position, T1 connection position and T2 connection position, and the power connection position includes L connection position and N connection position, L connection position is used to connect the neutral line of the power supply, and N connection position is used to connect the live line of the power supply. The ground connection position is used to connect the ground line. T1 connection position and T2 connection position can be selectively connected to the starting capacitor, and then the speed regulator 4 is plugged into the speed regulating plug interface 20 to realize the electrical connection of the winding inside the motor, thereby connecting the circuit.

[0066] When the external power supply of the asynchronous motor is a three-phase power supply of 380V, the external connection positions 5 used are L1 connection position, L2 connection position, L3 connection position, ground connection position, T1 connection position and T2 connection position. The power connection positions include L1 connection position, L2 connection position and L3 connection position, and the power connection positions are connected to the three-phase power line. The ground connection position is used to connect the ground line, and the T1 connection position and the T2 connection position have no external starting capacitor. The T1 connection position and the T2 connection position can be selectively connected to the sensor assembly, and then transferred to the winding through the speed regulator 4, thereby connecting the external circuit.

[0067] The above-mentioned sensor assembly includes a temperature sensor, a connecting wire and a connecting head. The connecting head is plugged into the T1 connecting position or the T2 connecting position. The asynchronous motor is installed in the circulation system. When the circulation system adjusts the working gear of the asynchronous motor according to the temperature detected by the temperature sensor, the temperature sensor is connected to the sensor connecting position through the connecting wire.

[0068] Preferably, a row of wiring holes near the external connection position 5 is electrically connected to the external connection position 5, and the distance between the two is small, which facilitates the electrical connection between the wiring holes and the external connection position 5. The size of the internal connection sheet is reduced to make the overall structure more compact. Specifically, in this embodiment, Figure 5 As shown, the speed regulating plug interface 20 comprises a first row of wiring holes 201, a second row of wiring holes 202 and a third row of wiring holes 203 which are arranged in parallel in sequence, the third row of wiring holes 203 are arranged close to the external connection position 5, and the third row of wiring holes 203 are electrically connected to the external connection position 5. Specifically, the third row of wiring holes 203 are electrically connected to the external connection position 5 through an internal connection sheet arranged inside the bottom plate connection plate 1.

[0069] Specifically, in this embodiment, the arrangement of the connection positions is the same as the arrangement of the wiring holes of the three rows of wiring holes. The first row of wiring holes 201 and the second row of wiring holes 202 each include seven wiring holes, and the spacing between two adjacent groups of wiring holes in the first row of wiring holes 201 and the spacing between two adjacent groups of wiring holes in the second row of wiring holes 202 can be determined according to actual needs.

[0070] In this embodiment, the number of the wiring holes in the third row of wiring holes 203 is the same as the number of the connection positions of the external connection positions 5, and the positions correspond one to one, and each wiring hole is electrically connected to each external connection position through a set of internal connection sheets.

[0071] With regard to the specific structure of the speed regulator 4, the speed regulator 4 includes a housing 41, a first driving plate 42, a second driving plate 43 and a connecting piece, and openings are provided on two opposite sides of the housing 41.

[0072] The first drive board 42 and the second drive board 43 are both disposed in the housing 41, and the first drive board 42 and the second drive board 43 are disposed in parallel up and down, and multiple groups of control gear position circuits are disposed in the first drive board 42 and the second drive board 43, which are used to control the gear position of the motor. Specifically, multiple control gear position circuits can be disposed inside the first drive board 42 and the second drive board 43, and different control gear position circuits correspond to different gear positions. The control gear position circuit is connected to the output interface 7 of the winding inside the motor through the speed regulating plug interface 20 and the external connecting piece 3, so as to control the motor to work at different gear positions.

[0073] At least one group of connecting pieces are disposed on the first driving plate 42 and the second driving plate 43. One end of the connecting piece disposed on the first driving plate 42 is connected to the first driving plate 42, and the other end extends to a side away from the second driving plate 43. One end of the connecting piece disposed on the second driving plate 43 is connected to the second driving plate 43, and the other end extends to a side away from the first driving plate 42.

[0074] A group of control gear position circuits are provided inside the first driving board 42 and the second driving board 43 corresponding to each group of connecting plates, so as to control different gear positions of the motor.

[0075] One set of connecting pieces disposed on the first driving plate 42 and the second driving plate 43 is plugged into the speed regulating plug-in interface 20 .

[0076] Specifically, one set of connecting plates on the first drive plate 42 and the second drive plate 43 is plugged into the speed control plug port 20, and is connected to the external connector of the internal winding of the motor through the connecting plate and the external connecting plate 3, thereby forming a different electrical circuit with the internal winding of the motor, thereby achieving the gear control of the motor.

[0077] When the windings inside the motor are connected in series or in parallel, the control gear circuit is integrated into the speed regulator. The speed regulator has a modular design and can be used directly without setting connecting pieces inside the motor, thereby reducing the space size of the motor, reducing the difficulty of motor production, and reducing production costs.

[0078] The speed regulator 4 is modularly designed, and different speed regulators 4 can achieve different speed controls, thereby achieving different gear controls on the motor. Therefore, when the motor has more requirements for gears, different speed regulators 4 can be replaced. Because each speed regulator 4 can be set with multiple gears, and the speed of the motor corresponding to each gear can be different, therefore, the motor can be controlled to work at multiple different speeds by replacing different speed regulators 4. The modular speed regulator 4 is easy to disassemble and assemble, and can be quickly replaced, thereby improving work efficiency. At the same time, the speed regulator 4 is suitable for mass production, easy to store and transport, and reduces production costs.

[0079] Specifically, Figure 8-Figure 10As shown, in this embodiment, a first group of connecting pieces 401 are provided on the first driving plate 42, a second group of connecting pieces 402 and a third group of connecting pieces 403 are provided on the second driving plate 43, a first control gear circuit for controlling the first gear of the motor is provided inside the first driving plate 42, and the first control gear circuit is electrically connected to the first group of connecting pieces 401. A second control gear circuit for controlling the second gear of the motor and a third control gear circuit for controlling the third gear are provided inside the second driving plate 43, the second control gear circuit is connected to the second group of connecting pieces 402, and the third control gear circuit is connected to the third group of connecting pieces 403. Exemplarily, in this embodiment, the first gear is the first gear of the motor, the second gear is the second gear of the motor, and the third gear is the third gear of the motor.

[0080] Preferably, the position of the first group of connecting pieces 401 provided on the first driving plate 42 is rotated 180° in the up-down direction to coincide with the position of the third group of connecting pieces 403 provided on the second driving plate 43, and the position of the second group of connecting pieces 402 provided on the second driving plate 42 is rotated 180° in the front-back direction to coincide with the position of the third group of connecting pieces 403, where the directions "up", "down", "front" and "back" are in the order of Figure 8 When the regulator is flipped 180° in the up-down direction or rotated 180° in the front-back direction, the speed regulating plug interface 20 on the speed regulating plug connector 2 needs to be plugged in, so that each group of connecting pieces can be adapted to the speed regulating plug interface 20, which can reduce the number of designs of the speed regulating plug interface 20 and simplify the speed regulating plug interface 20, thereby reducing the production cost.

[0081] In this embodiment, the speed regulator 4 controls the motor to work with three gears. In other embodiments, a fourth group of connecting pieces can be provided on the first drive plate 42, and a control gear circuit for controlling the fourth gear of the motor is provided inside the first drive plate 42, and the control gear circuit is electrically connected to the fourth group of connecting pieces. Exemplarily, the fourth gear is the reserved gear of the motor.

[0082] In this embodiment, when the first group of connecting pieces 401 is plugged into the outlet interface, the motor is in the first gear of the working gear, the speed regulator is flipped 180° in the vertical direction, and when the third group of connecting pieces 403 is plugged into the outlet interface, the motor is switched between the first gear and the third gear. When the speed regulator is rotated 180° in the horizontal direction and the second group of connecting pieces 402 is plugged into the speed regulating plug interface 20, the motor is switched from the first gear to the second gear.

[0083] like Fig. 9 and Fig.10 As shown, the first group of connection sheets 401, the second group of connection sheets 402 and the third group of connection sheets 403 all include a first row of connection sheets 4011, a second row of connection sheets 4012 and a third row of connection sheets 4013. The third row of connection sheets 4013 is electrically connected to the external connection position 5.

[0084] Preferably, a mark for indicating the gear position is provided on the housing 41 .

[0085] Preferably, the first drive plate 42 and the second drive plate 43 are covered with an injection molding body 45, and each group of connecting pieces arranged on the first drive plate 42 and the second drive plate 43 are all penetrated through the injection molding body 45, and the injection molding body 45 is arranged in the housing 41. The speed regulator 4 is an independent module, which is convenient for disassembly and assembly. When the gear position of the motor needs to be adjusted, the speed regulator 4 is unplugged, and the front and rear position, or the up and down position of the speed regulator 4 is adjusted, so that one group of connecting pieces is reinserted into the speed regulating plug interface 20 to achieve gear shifting.

[0086] Preferably, the injection molding body 45 is located on the inner wall of the housing 41 and is integrally injection molded with the housing 41. The injection molding body 45 protects and fixes the first drive plate 42 and the second drive plate 43, and simultaneously fixes each group of connecting plates provided on the first drive plate 42 and the second drive plate 43. The housing 41 and the injection molding body 45 of the speed regulator 4 are an integral structure, and the speed regulator 4 has a simple structure, good structural stability, is easy to produce, has a low cost, and is not prone to damage.

[0087] Preferably, the speed regulator 4 further includes a box cover 44, and each opening of the housing 41 is provided with a box cover 44, which is detachably connected to the housing 41. When the gear position of the motor needs to be adjusted, after adjusting the position of the speed regulator 4, the box cover 44 on one side corresponding to the gear position is removed, so that one group of connecting pieces is plugged into the speed regulating plug interface 20, and the box cover 44 on the other side is covered on the housing 41 to prevent external dust from entering the housing 41 and affecting the electrical connection between each group of connecting pieces and the speed regulating plug interface 20.

[0088] The external power supply of the speed regulating switch module of the motor in this embodiment is connected to the external connection position 5, and is connected to the output line interface 7 of the internal winding of the motor through the circuit inside the base connecting plate 1, the speed regulator 4, and the external connecting plate 3, so as to realize the series and parallel output of the winding and realize quick and convenient connection with the external power supply.

[0089] The motor speed regulating switch module in this embodiment can realize universal connection of three-phase electricity and two-phase electricity.

[0090] The speed regulating switch module of the motor in this embodiment is modularly designed, and the speed regulator 4 is modularly designed. Different speed regulators 4 can be replaced according to actual needs, and can achieve control of multiple speeds and different phase sequences, thereby improving efficiency during mass production.

[0091] The speed regulating switch module of the motor in this embodiment can realize complex series and / or parallel connection of multiple windings inside the motor by adjusting the internal circuits of the first drive board 42 and the second drive board 43, thereby realizing the control of the motor's first gear, second gear, third gear and fourth gear, or even more gears.

[0092] like Figure 1 , Figure 2 and Fig.12 As shown, this embodiment also provides a junction box assembly, including a junction box 6, and a speed regulating switch module of the motor installed in the junction box 6, and the external connecting piece 3 passes through the junction box 6 and is connected to the output interface 7 of the motor winding.

[0093] Preferably, an observation window is provided on the junction box 6, and a mark for displaying the gear position on the housing 41 of the motor speed regulating switch module is located in the observation window, so that external staff can learn the working gear position of the motor through the observation window.

[0094] Preferably, this embodiment further provides a pump, comprising the above-mentioned junction box assembly. The junction box 6 controls the working gear of the motor, thereby controlling the working state of the pump.

[0095] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A motor speed regulating switch module, characterized in that: include: A base connecting plate (1), and a speed regulating plug connector (2) arranged on the base connecting plate (1), wherein the speed regulating plug connector (2) is provided with a speed regulating plug interface (20); An external connecting piece (3), one end of which is connected to the speed regulating plug interface (20), and the other end of which is connected to the outlet interface (7) of the internal winding of the motor; A speed regulator (4) having a gear control circuit disposed therein, and the speed regulator (4) can be plugged into the speed regulation plug interface (20); External connection positions (5), a plurality of external connection positions (5) are provided on the base connection plate (1), and the external connection positions (5) are electrically connected to the speed regulating plug interface (20).

2. The motor speed regulating switch module according to claim 1, characterized in that: The external connection position (5) includes a power connection position, a ground connection position, a start capacitor connection position and a sensor connection position.

3. The motor speed regulating switch module according to claim 1, characterized in that: The speed regulating plug interface (20) comprises three rows of wiring holes arranged in parallel, and the speed regulator (4) is provided with a connecting piece, which can be plugged into the wiring holes, wherein one row of the wiring holes is electrically connected to the external connection position (5).

4. The motor speed regulating switch module according to claim 2, characterized in that: The external connection position (5) includes an L1 connection position, an L2 connection position, an L3 connection position, a ground connection position, a T1 connection position and a T2 connection position; The L1 connection position, the L2 connection position, and the L3 connection position are connected to an external power supply; The ground connection point is connected to a ground wire; The T1 connection point and the T2 connection point can selectively connect a startup capacitor and / or a sensor component.

5. The motor speed regulating switch module according to claim 2 or 4, characterized in that: The sensor connection position is used to connect a sensor component, and the sensor component includes a temperature control sensor connected to the sensor connection position.

6. The motor speed regulating switch module according to claim 3, characterized in that: The speed regulator (4) comprises: A housing (41), wherein openings are provided on two opposite sides of the housing (41); A first drive board (42) and a second drive board (43), both of which are arranged in the housing (41), the first drive board (42) and the second drive board (43) are arranged in parallel up and down, and a plurality of groups of control gear position circuits are arranged in the first drive board (42) and the second drive board (43); At least one group of the connecting plates are disposed on each of the first driving plate (42) and the second driving plate (43); one end of the connecting plate disposed on the first driving plate (42) is connected to the first driving plate (42), and the other end extends to a side away from the second driving plate (43); One end of the connecting piece provided on the second driving plate (43) is connected to the second driving plate (43), and the other end extends to a side away from the first driving plate (42); A group of control gear position circuits are provided inside the first driving board (42) and the second driving board (43) corresponding to each group of connecting pieces; One group of the connecting pieces provided on the first drive plate (42) and the second drive plate (43) is plugged into the speed regulating plug interface (20).

7. The motor speed regulating switch module according to claim 6, characterized in that: The first driving plate (42) is provided with a first group of connecting plates (401), and the second driving plate (43) is provided with a second group of connecting plates (402) and a third group of connecting plates (403); A first gear control circuit for controlling a first gear of the motor is disposed inside the first driving plate (42), and the first gear control circuit is electrically connected to the first group of connecting pieces (401); A second control gear position circuit for controlling a second gear position of the motor and a third control gear position circuit for controlling a third gear position of the motor are arranged inside the second driving board (43); The second control gear position circuit is connected to the second group of connecting pieces (402), and the third control gear position circuit is connected to the third group of connecting pieces (403).

8. The motor speed regulating switch module according to claim 6, characterized in that: The first drive plate (42) and the second drive plate (43) are both covered with an injection molded body (45); the connecting pieces on the first drive plate (42) and the second drive plate (43) pass through the injection molded body (45); and the injection molded body (45) is arranged in the housing (41).

9. A junction box assembly, characterized in that: It comprises a motor speed regulating switch module as described in any one of claims 1 to 8, and a junction box (6), wherein the motor speed regulating switch module is installed in the junction box (6), and the external connecting piece (3) passes through the junction box (6) to be connected to the output interface (7) of the motor winding.

10. A pump, characterized in that: The junction box assembly comprises the junction box assembly according to claim 9.

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