A drainage control system

Abstract

The present invention discloses a drainage control system, comprising: a shell; a motor component, comprising a coil frame, a rotor gear and a conductive component, wherein a sealed cavity is provided in the coil frame, the sealed cavity is filled with potting glue, and an installation plane is provided in the outer cavity; a brake gear mechanism, comprising a first transmission wheel group and a brake gear group, the first transmission wheel group and the brake gear group are meshed with each other, and the first transmission wheel group is meshed with the rotor gear; a traction gear mechanism, comprising a traction gear and a transition gear, the traction gear and the transition gear are meshed with each other, and a second transmission wheel group is provided between the transition gear and the rotor gear; in an installation plane component coordinate system, the rotor gear forms an origin, and a line connecting the rotor gear and the first transmission wheel group forms a Y axis, and a vector angle β between the first transmission wheel group and the rotor gear and the brake gear group is greater than 68°; and a vector angle α between the transition gear and the rotor gear and the traction gear is greater than 69°, thereby ensuring a large torque in a small volume.

Description

Technical Field

[0001] The present invention relates to the technical field of drainage systems, and in particular to a drainage control system. Background Art

[0002] At present, the traction device is a key component in the fully automatic washing machine that controls the opening and closing of the drain valve and whether the brake disc is disengaged. Therefore, whether the traction device is qualified or not is particularly important for the quality of the whole machine. The traction device has a pull rod on the outside, and the inside is composed of a motor and a gear transmission system. The types of drainage motors on the market are diverse and complex in structure. In addition, the various transmission control parts are distributed on different installation bases, and there are many control and transmission parts, so the cost is high. At the same time, due to the large number of transmission gear trains, each set of gear trains needs to be arranged with a mounting shaft, and the installation environment of the traction device is relatively harsh, and it is difficult to meet the requirements of small size and large torque between gear trains at the same time.

[0003] A traction device in the prior art has a motor disposed therein, and the rotation and timing are controlled by energizing the motor. The motor terminals need to be connected to the conductive wires to complete the energization. A coil skeleton and a terminal seat are formed integrally in the motor. The winding portion of the coil skeleton is open and is closed only by the shell. The terminal seat is provided with wiring terminals and wires, and the coil skeleton and the terminal seat are covered by the traction device shell. However, the external wiring terminals of the wiring terminals are exposed, and there is inevitably an assembly gap between the shell and the wiring terminals. Especially in the northern region, due to the influence of moisture and humid environment in the bathroom, water is easily seeped from the assembly gap, affecting the normal use of the traction device. The traction device shakes when the washing machine is working, resulting in a greater risk of the coil skeleton encountering water. Another traction device in the prior art has a sealing ring disposed between the shell and the wiring terminal, but this method still cannot ensure waterproofness in the assembly gap on the peripheral side, and the sealing ring is subject to oxidation corrosion after long-term use, resulting in poor contact of the traction device or even fire, posing a safety hazard. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a drainage control system.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A drainage control system, comprising:

[0006] case;

[0007] The motor assembly includes a coil frame, a rotor gear for outputting torque, and a conductive component, wherein the coil frame divides the shell to form an outer cavity, a sealed cavity for accommodating the conductive component is formed in the coil frame, the sealed cavity is filled with potting glue and the conductive component is fixed, and a mounting plane is provided in the outer cavity, and the mounting plane is arranged on the coil frame;

[0008] The brake gear mechanism comprises a first transmission wheel set and a brake gear set arranged on the mounting plane, the first transmission wheel set and the brake gear set meshing with each other, and the first transmission wheel set meshing with the rotor gear;

[0009] A traction gear mechanism, comprising a traction gear and a transition gear arranged on a mounting plane, the traction gear and the transition gear meshing with each other, and a second transmission wheel set provided between the transition gear and the rotor gear, the traction gear being connected with a traction rope, and the second transmission wheel set being used to transmit the rotor gear torque to the traction gear;

[0010] Wherein, a sink for accommodating the power supply component is provided in the shell, and the connection terminal of the conductive component extends out of the shell through the coil frame.

[0011] In the installation plane component coordinate system, the rotor gear forms the origin, and the line connecting it with the first transmission wheel set constitutes the Y axis, and the vector angle β between the first transmission wheel set and the rotor gear and the brake gear set is greater than 68°; and the vector angle α between the transition gear and the rotor gear and the traction gear is greater than 69°.

[0012] Furthermore, the conductive component includes a terminal block and a coil component, the coil component is wound in a coil frame, and the terminal block includes a connector and an insulating sleeve fixed in a sealed cavity, the insulating sleeve extends out of the sealed cavity and has a wire inside, one end of the connector is connected to the insulating sleeve, and the other end of the connector is connected to the coil component.

[0013] Furthermore, the coil frame includes an upper seat and a lower seat, which are closed to form an annular winding cavity and a terminal cavity located on one side of the winding cavity, the terminal cavity is connected to the winding cavity, and the rotor gear is arranged at the center of the winding cavity.

[0014] Furthermore, a glue injection port is provided at the terminal cavity, and a shielding unit is closed on the glue injection port by the sealing glue.

[0015] Furthermore, a ring-shaped winding portion is formed on the upper seat, and the lower seat has a surrounding edge surrounding the winding portion, and the upper seat and the lower seat are fixed by ultrasonic welding.

[0016] Furthermore, the reduction ratio between the traction gear mechanism and the driving gear is greater than 245.

[0017] Preferably, the vector angle β between the first transmission gear set and the driving gear and the brake gear set is 73°; the vector angle α between the transition gear and the driving gear and the traction gear is 71°.

[0018] Furthermore, the traction gear system also includes a cam assembly that is in transmission cooperation with the second transmission wheel set, and the brake gear assembly also includes a sector-shaped toothed plate that cooperates with the first transmission wheel set, and the cam assembly is meshed with the second transmission wheel set.

[0019] Furthermore, the brake gear set includes: a mounting shaft, a brake gear sequentially sleeved on the mounting shaft, a sleeve, a magnet embedded in the outer periphery of the sleeve, and a gear cup covered on the outer periphery of the magnet, a disk body and a first positioning seat are formed on the brake gear, a torsion spring is disposed on the outer sleeve of the first positioning seat, and the free end of the torsion spring abuts against the disk body, a first shaft protrusion extending between the mounting shaft and the first positioning seat is provided at the bottom of the sleeve, and the bottom of the sleeve is supported on the end face of the first positioning seat.

[0020] Furthermore, a second positioning seat is provided on the top of the shaft sleeve, a second shaft protrusion inserted into the second positioning seat is provided on the bottom of the gear cup, and a convex point supported on the second positioning seat is also provided on the bottom of the second shaft protrusion.

[0021] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. By optimizing the spatial layout of the installation plane, the relative position of the torque rotation axis of the gear system and the input torque rotation axis of the traction device is adjusted to ensure the compactness of the gear systems, meet the requirements of small space installation of the traction device, effectively save design space, and make full use of the circumferential space of the rotor gear on the installation plane to increase the transmission ratio of the gear system, thereby increasing the rotational torque of the gear system. By adopting this gear system layout, the initial input torque of the motor can be reduced under the premise that the output torque of the gear system remains unchanged.

[0022] 2. By setting a closed coil skeleton in the shell, the shell is divided into an outer cavity and a sealed cavity, and the conductive component is placed in the sealed cavity and completely filled with potting glue to achieve sealing, thereby ensuring the stability and sealing of the conductive component and achieving complete separation of the transmission part and the conductive part in the tractor;

[0023] 3. The upper seat and the lower seat are closed to form a terminal cavity, and one side of the terminal cavity is open to form a glue filling port. The conductive component is initially positioned and installed through the first positioning structure in the terminal cavity, and then fully glued and sealed through the glue filling port. The sealing glue fills the terminal cavity and fills the assembly gap between the conductive component and the first positioning structure and the terminal cavity. The sealing glue improves the position stability of the conductive component while ensuring the sealing of the terminal cavity. After the glue filling is completed, the shielding unit is used to close the glue filling port. The shielding unit is in full contact with the sealing glue in the terminal cavity and then the glue filling port is sealed, thereby achieving the expected waterproof level. The terminal cavity is filled with glue to completely isolate the live part and the transmission part of the tractor, and the connecting structure between the shielding unit and the terminal cavity is omitted, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the exploded structure of the housing and the gear system of the present invention;

[0025] Figure 2 It is an exploded schematic diagram of the traction gear mechanism and the brake gear mechanism of the present invention;

[0026] Figure 3 A top view of the present invention;

[0027] Figure 4 It is a schematic diagram of the arrangement of the gear system of the present invention;

[0028] Figure 5 It is an exploded schematic diagram of the traction gear mechanism of the present invention;

[0029] Figure 6 An exploded schematic diagram of the brake gear mechanism of the present invention;

[0030] Figure 7 is a cross-sectional schematic diagram of a brake gear set of the present invention;

[0031] Figure 8 It is a schematic structural diagram of the coil skeleton of the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the upper seat of the present invention;

[0033] Fig.10 It is a structural schematic diagram of the upper seat of the present invention from another angle;

[0034] Fig.11 is a cross-sectional view of the shielding unit and the insulating sleeve of the present invention;

[0035] Fig.12 is a cross-sectional view of a coil skeleton of the present invention;

[0036] Fig.13 A cross-sectional view of the coil skeleton of the present invention from another angle;

[0037] Fig.14 It is an exploded schematic diagram of the coil skeleton of the present invention;

[0038] Fig.15 It is an exploded schematic diagram of the coil skeleton of the present invention from another angle;

[0039] In the figure: 1. housing;

[0040] 2. Motor assembly; 2.1. Coil frame;

[0041] 2.11, upper seat; 2.111, winding part; 2.112, inner ring wall; 2.113, upper side wall; 2.114, lower side wall;

[0042] 2.12, lower seat; 2.121, outer ring wall; 2.122, receiving edge;

[0043] 2.2, terminal cavity; 2.21, arc surface; 2.22, guide opening;

[0044] 2.3, winding cavity; 2.31, winding groove;

[0045] 2.4, glue filling port;

[0046] 2.5, shielding unit; 2.51, second positioning structure; 2.52, fourth slot; 2.53, positioning edge;

[0047] 2.6, conductive component; 2.61, insulating sleeve; 2.62, plug-in connector; 2.621, fixing plate; 2.622, main body; 2.63, coil terminal;

[0048] 2.7, first positioning structure; 2.71, first card slot; 2.72, second card slot; 2.73, third card slot;

[0049] 2.8, first side seat; 2.81, third welding surface; 2.82, plug block;

[0050] 2.9, second side seat; 2.91, fourth welding surface; 2.92, socket;

[0051] 3. Braking gear mechanism; 3.1. Sector-shaped gear plate;

[0052] 4. Traction gear mechanism; 4.1. Traction gear; 4.2. Transition gear; 4.3. Cam assembly;

[0053] 5. First transmission wheel set; 5.1. First double gear; 5.2. Check gear set;

[0054] 6. Braking gear set;

[0055] 6.1, brake gear; 6.11, disc body; 6.12, first positioning seat;

[0056] 6.2, shaft sleeve; 6.21, first shaft protrusion; 6.22, second positioning seat;

[0057] 6.3, magnetic steel; 6.4, gear cup; 6.41, second shaft convex; 6.42, convex point;

[0058] 6.5, torsion spring; 6.6, sector tooth plate;

[0059] 7. Second transmission wheel set; 7.1. Planetary gear assembly; 7.11. External gear plate; 7.12. Cage; 7.13. Planetary gear structure; 7.2. Clutch check gear set; 7.21. Clutch check wheel; 7.22. Clutch wheel; 7.23. Compression spring; 7.3. Clutch check member;

[0060] 8. External cavity;

[0061] 9. Installation plane;

[0062] 10. Rotor gear;

[0063] 11. first welding surface; 12. second welding surface; DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0065] It should be understood that although the terms upper, middle, lower, top, end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for easy understanding, and are not used to define any direction or order limitation.

[0066] like Figure 1-15 As shown, a drainage control system comprises:

[0067] The housing 1, comprising an upper shell and a lower shell, is provided for mounting the motor assembly 2, the traction gear mechanism 4 and the brake gear 6.1 mechanism, and provides protection for them;

[0068] The motor assembly 2 includes a coil frame 2.1, a rotor gear 10 for outputting torque, and a conductive assembly 2.6, wherein the coil frame 2.1 separates the housing 1 to form an outer cavity 8, a sealed cavity for accommodating the conductive assembly 2.6 is formed in the coil frame 2.1, the sealed cavity is filled with potting glue and the conductive assembly 2.6 is fixed, and a mounting plane 9 is provided in the outer cavity 8, and the mounting plane 9 is arranged on the coil frame 2.1;

[0069] like Figure 3 As shown, the mounting plane 9 is arranged in the outer cavity 8, and the outer cavity 8 is used for arranging the gear transmission system, so as to completely isolate the live part and the transmission part in the housing 1, and the first shaft and the second shaft are arranged on one side of the rotor gear 10 on the mounting plane 9, and the third shaft and the fourth shaft are arranged on the other side of the rotor gear 10;

[0070] In the rectangular coordinate system of the mounting plane 9 component plane, the rotor gear 10 forms an origin, and the line connecting the rotor gear 10 and the first axis forms a Y axis, and the vector angle β between the first axis and the rotor gear 10 and the second axis is greater than 68°; and the vector angle α between the third axis and the rotor gear 10 and the fourth axis is greater than 69°.

[0071] Preferably, the vector angle β between the first transmission gear set and the driving gear and the brake gear set is 73°; the vector angle α between the transition gear and the driving gear and the traction gear is 71°. This preferred arrangement is beneficial to saving internal space and increasing the total reduction ratio of the traction gear system.

[0072] Specifically, the reduction ratio between the traction gear system and the driving gear is greater than 245, and preferably is 256.6, and the reduction ratio refers to the total reduction ratio from the traction gear to the driving gear.

[0073] Specifically, the transmission ratio between the traction gear and the transition gear is 4.2, and the transmission ratio between the driving gear and the second transmission gear set is 3.4.

[0074] like Figures 1 to 7 As shown, in this embodiment, the gear transmission system includes a braking gear 6 . 1 mechanism and a traction gear mechanism 4 , and both the braking gear 6 . 1 mechanism and the traction gear mechanism 4 are capable of receiving torque from the rotor gear 10 .

[0075] Among them, the traction gear mechanism 4 is connected to the traction rope. When the motor assembly 2 is working, the traction gear mechanism 4 drives the traction rope to keep extending. When the motor assembly 2 is powered off, the traction gear mechanism 4 recovers under the action of external force; the brake gear 6.1 mechanism is used to control the traction gear mechanism 4 to maintain traction or recovery.

[0076] The brake gear 6.1 mechanism comprises a first transmission wheel set 5 and a brake gear set 6 arranged on the mounting plane 9, the first transmission wheel set 5 is arranged on the first shaft, the brake gear set 6 is arranged on the second shaft, the first transmission wheel set 5 and the brake gear set 6 are meshed with each other, and the first transmission wheel set 5 is meshed with the rotor gear 10;

[0077] like Figure 5 As shown, the traction gear mechanism 4 comprises a traction gear 4.1 and a transition gear 4.2 arranged on the mounting plane 9, the transition gear 4.2 being arranged on the third shaft, and the traction gear 4.1 being arranged on the fourth shaft, the traction gear 4.1 and the transition gear 4.2 being meshed with each other, and a second transmission wheel set 7 being arranged between the transition gear 4.2 and the rotor gear 10, the traction gear 4.1 being connected with a traction rope, the traction rope being connected with an external load to control the opening and closing of the drain valve, and the second transmission wheel set 7 being used to transmit the torque of the rotor gear 10 to the traction gear 4.1;

[0078] The housing 1 is provided with a sink for accommodating the electric motor component 2, and the connection terminals of the conductive component 2.6 extend out of the housing 1 through the coil frame 2.1.

[0079] In the component coordinate system of the installation plane 9, the rotor gear 10 forms the origin, and the line connecting the rotor gear 10 and the first transmission wheel group 5 constitutes the Y axis, and the vector angle β between the first transmission wheel group 5 and the rotor gear 10 and the brake gear group 6 is less than °; and the vector angle α between the transition gear 4.2 and the rotor gear 10 and the traction gear 4.1 is less than °, which ensures the compactness of the gear system, meets the requirements of small space installation of the traction device, and effectively saves the design space. With this gear system layout, the initial input torque of the motor can be reduced while ensuring that the output torque of the gear system and the volume of the housing 1 remain unchanged.

[0080] Preferably, the planetary gear assembly 7.1 is located in the second quadrant close to the negative direction of the X-axis, the cam assembly 4.3 is located in the third quadrant close to the negative direction of the X-axis, and the transition gear 4.2 is located in the second quadrant close to the positive direction of the Y-axis.

[0081] like Figure 5 As shown, in this embodiment, the traction gear mechanism 4 also includes a cam assembly 4.3 that is in transmission cooperation with the second transmission wheel set 7, and the braking gear set 6 also includes a sector-shaped tooth plate 3.1, which cooperates with the first transmission wheel set 5, wherein the cam assembly 4.3 has a stopping portion, the sector-shaped tooth plate 3.1 is connected to an elastic member, and the sector-shaped tooth plate 3.1 can rotate between an initial position and a braking position.

[0082] When the motor is working, the sector tooth plate 3.1 can overcome the force of the elastic member under the action of the brake gear 6.1 mechanism and rotate to the braking position, and engage with the stop part of the cam assembly 4.3, thereby preventing the cam assembly 4.3 from rotating when the motor is running, and when the motor stops rotating, the sector tooth plate 3.1 disengages and returns to the initial position under the action of the elastic member, so that the cam assembly 4.3 can rotate.

[0083] As a further explanation of the traction gear mechanism 4, the second transmission wheel set 7 includes a coaxially arranged planetary gear assembly 7.1 and a clutch check gear set 7.2. The planetary gear assembly 7.1 can engage with the cam assembly 4.3, and the cam assembly 4.3 controls the transmission between the planetary gear assembly 7.1 and the transition gear 4.2. The clutch check gear set 7.2 can be clutched relative to the planetary gear assembly 7.1 to control the transmission of the traction gear mechanism 4.

[0084] The planetary gear assembly 7.1 comprises an outer toothed disc 7.11, a retaining frame 7.12, and a planetary gear structure 7.13 arranged between the outer toothed disc 7.11 and the retaining frame 7.12. An inner gear ring is provided in the outer toothed disc 7.11. The clutch check gear set 7.2 is meshed with the rotor gear. The outer toothed disc 7.11 is meshed with the cam assembly 4.3. The retaining frame 7.12 is meshed with the transition gear 4.2.

[0085] The clutch check gear set 7.2 is located below the planetary gear assembly 7.1, and includes a coaxially arranged clutch check wheel 7.21, a clutch wheel, and a compression spring 7.23 arranged between the clutch check wheel 7.21 and the clutch wheel 7.22, wherein the clutch wheel 7.22 is meshed with the rotor gear and transmits torque to the planetary gear assembly 7.1 through the compression spring and the clutch check wheel;

[0086] The clutch check member 7.3 is coaxially arranged with the transition gear 4.2 and has a pawl that can approach the clutch check wheel 7.21. The clutch check wheel 7.21 is formed with a ratchet wheel on its outer periphery to prevent reverse rotation through the pawl ratchet wheel structure.

[0087] Specifically, the transition gear 4.2 refers to the second duplex gear, the upper portion of the second duplex gear is meshed with the retaining frame 7.12, and the lower portion of the second duplex gear is meshed with the traction wheel.

[0088] When the motor is working, the clutch check gear set 7.2 and the planetary gear assembly 7.1 form a transmission fit, the outer toothed disc 7.11 meshes with the cam assembly 4.3 for transmission and drives the cam assembly 4.3 to rotate. At this time, the planetary gear assembly 7.1 is idling due to the rotation of the outer toothed disc 7.11 until the cam assembly 4.3 and the fan-shaped toothed plate 3.1 form a stop limit. At this time, the outer toothed disc 7.11 is restricted from rotating, and the rotor gear 10 provides torque for the clutch wheel, thereby driving the retaining frame 7.12 of the planetary gear assembly 7.1 to rotate, and then driving the transition gear 4.2 and the traction gear 4.1 to rotate. After the traction gear 4.1 is in place, the clutch check member 7.3 is driven by the traction gear 4.1 and moves close to the clutch check wheel 7.21, and the pawl and ratchet are matched.

[0089] When the motor is powered off, the brake gear 6.1 resets, the sector gear plate 3.1 is disengaged from the cam assembly 4.3, and the traction gear 4.1 is driven by the external load and sequentially transmitted to the second transmission gear set to complete the reset.

[0090] like Figure 6As shown, as a further explanation of the brake gear 6.1 system 3, the first transmission wheel group 5 includes a first double gear 5.1 and a non-return gear group 5.2 arranged coaxially, the upper part of the first double gear 5.1 is meshed with the brake gear group 6, the lower part of the first double gear 5.1 is meshed with the fan-shaped gear plate 3.1, and the non-return gear group 5.2 is meshed with the rotor gear.

[0091] Specifically, the non-return gear set 5.2 includes a non-return pawl and a non-return gear which are coaxially arranged. The non-return pawl is located below the non-return gear and is slidably connected to the non-return gear. The non-return gear is meshed with the brake gear set 6 and the rotor gear 10.

[0092] After the motor is powered on, the rotor gear 10 drives the check gear to rotate, and then drives the brake gear 6.1 of the brake gear set 6 to rotate. The gear cup 6.4 of the brake gear set 6 drives the first double gear 5.1 to rotate, and then drives the toothed fan plate to rotate, so that the toothed fan plate overcomes the force of the elastic component and forms a stop limit with the cam assembly 4.3.

[0093] like Figure 7 As shown, in other embodiments, in order to facilitate the rapid assembly of the brake gear set 6, the brake gear set 6 includes: a mounting shaft, a brake gear 6.1 sleeved on the mounting shaft, a shaft sleeve 6.2, a magnetic steel 6.3 embedded in the outer periphery of the shaft sleeve 6.2, and a gear cup 6.4 covered on the outer periphery of the magnetic steel 6.3, the brake gear 6.1 is formed with a disk body 6.11 and a first positioning seat 6.12, the first positioning seat 6.12 is outer-circumferentially provided with a torsion spring 6.5, and the free end of the torsion spring 6.5 abuts against the disk body 6.11, and the bottom of the shaft sleeve 6.2 is provided with a torsion spring 6.5. A first shaft protrusion 6.21 extending between the mounting shaft and the first locating seat 6.12 is provided, and the first shaft protrusion 6.21 is supported on the end face of the first locating seat 6.12. A second locating seat 6.22 is also provided on the top of the sleeve 6.2. A second shaft protrusion 6.41 is provided at the bottom of the gear cup 6.4 and inserted into the second locating seat 6.22. A convex point 6.42 supported on the second locating seat 6.22 is also provided at the bottom of the second shaft protrusion 6.41, so that the brake gear 6.1, the sleeve 6.2 and the gear cup 6.4 support each other to ensure concentricity.

[0094] Through the above improvements, during the assembly process of the brake gear set 6, it is only necessary to put the brake gear 6.1, the torsion spring 6.5, the shaft sleeve 6.2 with the magnetic steel 6.3 and the gear in sequence, and the torsion spring 6.5 is directly positioned by the outer surface of the first positioning seat 6.12 and is directly limited by the lower end surface of the shaft sleeve 6.2, and the first shaft protrusion 6.21 is plugged into the first positioning seat 6.12 to ensure the axial position between the brake gear 6.1 and the shaft sleeve 6.2, and the second shaft protrusion 6.41 is plugged into the second positioning seat 6.22 to ensure the axial position between the shaft protrusion and the gear cup 6.4, which is convenient for the rapid assembly of the brake gear set 6 and improves the overall concentricity. After the torsion spring 6.5 is inserted, it is automatically corrected under the action of the shaft sleeve 6.2 with the magnetic steel 6.3.

[0095] The top of the gear cup 6.4 is provided with a gear portion meshing with the double gears at the top of the first transmission wheel set 5, and the brake gear 6.1 is meshed with the non-return gear at the bottom of the first transmission wheel set 5.

[0096] Through the above-mentioned space optimization arrangement, the transmission ratio between the traction gear and the lower part of the second double gear is preferably 4.2, and the transmission ratio between the clutch gear and the driving gear is preferably 3.4.

[0097] Embodiment 2

[0098] like Figures 8 to 12 As shown, based on the first embodiment, it is a further implementation of the coil skeleton 2.1 and the conductive component 2.6.

[0099] Specifically, the coil frame 2.1 includes an upper seat 2.11 and a lower seat 2.12, and the upper seat 2.11 and the lower seat 2.12 are closed to form a ring-shaped winding cavity 2.3 and a terminal cavity 2.2 located on one side of the winding cavity 2.3, and the terminal cavity 2.2 is connected to the winding cavity 2.3. The rotor gear 10 is arranged at the center of the winding cavity 2.3, and the terminal cavity and the winding cavity form a sealed cavity.

[0100] Specifically, the conductive component 2.6 includes a wiring terminal and a coil component. The coil component is wound in the coil frame 2.1, and the wiring terminal includes a connector 2.62 and an insulating sleeve 2.61 fixed in the sealed cavity. The insulating sleeve 2.61 extends out of the sealed cavity and has a wire inside. One end of the connector 2.62 is connected to the insulating sleeve 2.61, and the other end of the connector 2.62 is connected to the coil component.

[0101] Specifically, a glue injection port 2.4 is provided at the terminal cavity 2.2, and a shielding unit 2.5 is closed on the glue injection port 2.4 by a potting glue. Preferably, the potting glue can be epoxy resin.

[0102] In other embodiments, the sealed cavity may also be sealed by plastic sealing.

[0103] Specifically, a ring-shaped winding portion 2.111 is formed on the upper seat 2.11, and the lower seat 2.12 has a surrounding edge surrounding the winding portion 2.111.

[0104] Among them, the terminal cavity 2.2 is provided with a first positioning structure 2.7 for the conductive component 2.6 to be clamped therein, and the glue filling port 2.4 is also closed with a shielding unit 2.5. After the terminal cavity 2.2 is filled with potting glue, the potting glue seals the peripheral gap of the terminal cavity 2.2 and the assembly gap between the conductive component 2.6 and the first positioning structure 2.7. The terminal cavity 2.2 is closed by the shielding unit 2.5, and an integrated structure is formed with the terminal cavity 2.2 through the potting glue.

[0105] The glue filling port 2.4 matches the cross-section of the terminal cavity 2.2, that is, one side of the terminal cavity 2.2 is open, the shielding unit 2.5 is a cover body, and the conductive component 2.6 and the positioning structure are exposed at the glue filling port 2.4, so that the potting glue can fully contact with the conductive component 2.6 and the positioning structure to ensure a waterproof sealing effect.

[0106] Specifically, the glue injection port 2.4 is opened on the vertical surface of the terminal cavity 2.2. During the glue injection process, the coil skeleton 2.1 is fixed with the glue injection port 2.4 facing upward, so that the terminal cavity 2.2 is vertically connected with the winding cavity 2.3, thereby filling the sealed cavity.

[0107] In this embodiment, a second positioning structure 2.51 is provided on the shielding unit 2.5, and the second positioning structure 2.51 cooperates with the first positioning structure 2.7 to fix the conductive component 2.6, and the shielding unit 2.5 is positioned with the terminal cavity 2.2 through the second positioning structure 2.51, thereby achieving stable cooperation between the shielding unit 2.5 and the terminal cavity 2.2, and further ensuring the position stability of the conductive component 2.6 in the terminal cavity 2.2.

[0108] As a further explanation of the terminal cavity 2.2 and the glue pouring port 2.4, the glue pouring port 2.4 is opened at the installation surface of the conductive component 2.6 so that the potting glue is in full contact with the conductive component 2.6. During the assembly process and the glue pouring process of the conductive component 2.6, the coil frame 2.1 always remains fixed in the same posture.

[0109] Specifically, an arc surface 2.21 is provided at the bottom of the terminal cavity 2.2 facing the glue filling port 2.4, and the conductive component 2.6 is provided on both sides of the arc surface 2.21. Through the setting of the arc surface 2.21, the potting glue is guided toward the conductive component 2.6 to ensure full contact between the potting glue and the conductive component 2.6, so that the horizontal plane of the potting glue in the terminal cavity 2.2 is kept rising evenly, reducing the overflow of the potting glue in the terminal cavity 2.2 and the air gap in the terminal cavity 2.2. At the same time, the volume of the terminal cavity 2.2 is relatively reduced by the arc surface 2.21, thereby reducing the amount of glue filling.

[0110] Specifically, a guide opening 2.22 is formed between the terminal cavity 2.2 and the winding cavity 2.3, and the guide opening 2.22 is located at the highest horizontal position of the bottom of the terminal cavity 2.2. Preferably, the guide opening 2.22 is located in the middle of the terminal cavity 2.2 and at the highest position of the arc surface 2.21.

[0111] Specifically, a winding groove 2.31 is further provided at the entrance of the winding cavity 2.3, and the winding groove 2.31 is arranged adjacent to the terminal cavity 2.2, and the conductive component 2.6 has a coil terminal 2.63 extending into the winding cavity 2.3, and the winding groove 2.31 is arranged opposite to the coil terminal 2.63, wherein the winding groove 2.31 is arranged in an arc shape facing the guide opening 2.22, and a back plate is provided on the side of the winding groove 2.31 away from the guide opening 2.22, and the back plate should be regarded as a part of the winding groove 2.31, so that part of the wire can be fixed and sealed by the potting glue, and the winding groove 2.31 extends to the tangential position of the winding part 2.111., so as to facilitate the winding of the wire.

[0112] like Fig. 9 As shown, as a further explanation of the conductive component 2.6 and the first positioning structure 2.7, the conductive component 2.6 includes an insulating sleeve 2.61 and a connector 2.62 embedded in the terminal cavity 2.2, and the connector 2.62 extends into the winding cavity 2.3 through the terminal cavity 2.2, and the first positioning structure 2.7 has a first positioning portion that cooperates with the connector 2.62, and a second positioning portion that cooperates with the insulating sleeve 2.61.

[0113] Among them, the insulating sleeve 2.61 is inserted with a conductive wire, and the plug connector 2.62 includes:

[0114] A fixing plate 2.621, wherein the fixing plate 2.621 is open toward the glue injection port 2.4 to allow the conductive wire to be placed therein;

[0115] The main body 2.622 is bent relative to the fixing piece 2.621 and inserted into the first positioning part. Optionally, the main body 2.622 is provided with sharp protrusions on both sides. The sharp protrusions can be sawtooth-shaped to ensure the position stability of the plug-in 2.62 in the terminal cavity 2.2.

[0116] The coil terminal 2.63 is bent about the main body 2.622 and arranged in the same direction as the fixing plate 2.621. The coil terminal 2.63 is provided with a plurality of openings for winding wires, and the coil terminal 2.63 is fixed after being placed in the first positioning position along with the main body 2.622.

[0117] like Fig. 9 and Fig.10 As shown, specifically, the first positioning structure 2.7 includes:

[0118] A first card slot 2.71, wherein the first card slot 2.71 matches the profile of the insulating sleeve 2.61, and the first card slot 2.71 is engaged with both ends of the insulating sleeve 2.61, and the second positioning portion refers to two transverse ribs formed in the terminal cavity 2.2, one of which constitutes the outer wall of the terminal cavity 2.2, and the first card slot 2.71 is arranged on the above-mentioned transverse rib;

[0119] A second card slot 2.72, wherein the second card slot 2.72 is used for the main body 2.622 of the plug-in component 2.62 to be inserted;

[0120] The third slot 2.73 is for the coil terminal 2.63 of the connector 2.62 to slide into, and the bottom of the third slot 2.73 is open so that the coil terminal 2.63 can enter the winding cavity 2.3. The second slot 2.72 and the third slot 2.73 limit the insulating sleeve 2.61 and the connector 2.62 to be in the same direction. At the same time, the second slot 2.72 and the third slot 2.73 constitute a first positioning position.

[0121] like Fig.11 and Fig.12 As shown, as a further explanation of the second positioning member structure, the second positioning structure 2.51 includes a fourth slot 2.52 that is snapped into the middle of the insulating sleeve 2.61, and a positioning edge 2.53 set about the inner contour of the terminal cavity 2.2, wherein a boss is formed at the bottom of the shielding unit 2.5, and the fourth slot 2.52 is formed on the boss, and the spacing between the two first slots 2.71 matches the length of the fourth slot 2.52, thereby ensuring the positioning of the insulating sleeve 2.61, and in addition, the positioning edge 2.53 can cooperate with the inner contours of the terminal cavity 2.2 parts of the upper seat 2.11 and the lower seat 2.12 respectively.

[0122] Optionally, the positioning edge 2.53 on the shielding unit 2.5 also squeezes the potting glue in the terminal cavity 2.2, causing it to overflow and connect the shielding unit 2.5 with the outer edge of the terminal cavity 2.2.

[0123] Coil skeleton 2.1 sealing process: The conductive component 2.6 is first initially positioned by the first positioning structure 2.7 in the terminal cavity 2.2, and then glue is poured through the glue pouring port 2.4. The potting glue is evenly extended through the arc surface 2.21 at the bottom of the terminal cavity 2.2 to ensure the uniformity of the potting glue in the terminal cavity 2.2, thereby filling and sealing the assembly gap between the upper seat 2.11 and the lower seat 2.12, and the assembly gap of the conductive component 2.6 on the first positioning structure 2.7, so that the potting glue fills the terminal cavity 2.2 and seals the conductive component 2.6 at all angles, thereby achieving the expected waterproof level. The terminal cavity 2.2 is used. By means of glue pouring, the live part and the transmission part of the traction device are completely isolated, and finally the glue pouring port 2.4 is closed by the shielding unit 2.5. The second positioning structure 2.51 on the shielding unit 2.5 further defines the position of the conductive component 2.6. At the same time, the positioning edge 2.53 on the peripheral side of the shielding unit 2.5 is inserted into the terminal cavity 2.2, thereby squeezing the potting glue to make it overflow in and out of the terminal cavity 2.2, thereby further improving the sealing of the potting glue to the peripheral side of the terminal cavity 2.2. In addition, due to the open setting of the glue pouring port 2.4, the end face of the shielding unit 2.5 is in full contact with the potting glue, thereby forming an integrated structure with the terminal cavity 2.2.

[0124] Embodiment 3

[0125] like Figures 12 to 15 As shown, as an implementation manner of fixing the upper seat 2.11 and the lower seat 2.12, the upper seat 2.11 and the lower seat 2.12 are fixed by ultrasonic welding.

[0126] The upper seat 2.11 has a winding part 2.111, and the lower seat 2.12 has a lower frame part, and the surrounding edge is formed on the lower frame part. The winding part 2.111 and the lower frame part are closed to form an annular cavity, and the annular cavity is used for winding the coil assembly;

[0127] A first welding matching structure is provided between the upper seat 2.11 and the lower seat 2.12, and the first welding matching structure includes at least a first welding surface 11 formed on the bottom surface of the winding part 2.111, and a second welding surface 12 formed on the inner side of the lower frame part, and the first welding surface 11 and the second welding surface 12 are stepped matched, or the first welding surface 11 and the second welding surface 12 are plane matched.

[0128] Specifically, the first welding surface 11 and the second welding surface 12 are matched with each other on a horizontal plane and are fixed by ultrasonic welding, wherein the horizontal plane matching refers to that the matching surfaces of the first and second welding surfaces 12 are mainly on a horizontal plane. Optionally, the first welding surface 11 and the second welding surface 12 are matched with each other in a step manner, and there is a vertical welding matching surface between the two, and the vertical surface mainly serves to increase the welding surface area and position the upper and lower frame parts.

[0129] In this embodiment, the winding portion 2.111 is roller-shaped and has a peripheral opening, and is provided with radially extending extended edges at the upper and lower ends. The winding portion 2.111 specifically includes an inner annular wall 2.112, and an upper side wall 2.113 and a lower side wall 2.114 radially extending at the upper and lower ends of the inner annular wall 2.112, and the ends of the upper side wall 2.113 and the lower side wall 2.114 form a first welding surface 11. Optionally, the ends of the upper side wall 2.113 and the lower side wall 2.114 form a concave step surface, and the step surface forms the first welding surface 11.

[0130] Specifically, the lower skeleton portion includes an outer annular wall 2.121 closed on the peripheral side of the winding portion 2.111, the bottom of the outer annular wall 2.121 extends radially inward to form a receiving edge 2.122, and the lower side wall 2.114 of the winding portion 2.111 is supported on the receiving edge 2.122, so that the upper and lower ends of the outer annular wall 2.121 constitute a second welding surface 12 that cooperates with the first welding surface 11 on the winding portion 2.111.

[0131] As a further explanation of the first welding matching structure, the end of the upper side wall 2.113 forms an L-shaped first step, and the upper end of the outer ring wall 2.121 forms an L-shaped second step, and the first step and the second step are fixed by ultrasonic welding;

[0132] An L-shaped third step is formed at the bottom of the lower side wall 2.114, and a bottom edge extending into the third step is formed at the bottom of the outer ring wall 2.121, wherein the bottom of the third step is open for the outer ring wall 2.121 to extend into, and the horizontal surface of the third step is larger than the vertical surface to achieve horizontal connection between the winding part 2.111 and the lower frame part, and ultrasonic welding is performed between the third step and the bottom edge of the outer ring wall 2.121 to fix them.

[0133] Specifically, a welding ring is provided on the upper welding surface or the lower welding surface, and the welding ring provides fusible material during the ultrasonic welding process to ensure the tightness of the fixation between the upper skeleton structure and the lower skeleton structure, wherein the welding ring is slender and is arranged on the horizontal plane of the third step.

[0134] In other embodiments of the present invention, the winding portion 2.111 is roller-shaped and has a peripheral opening, and is provided with a radially extending extension edge at the upper end. The winding portion 2.111 specifically includes an inner annular wall 2.112 and an upper side wall 2.113 radially extending from the upper end of the inner annular wall 2.112, and the end of the upper side wall 2.113 and the lower end of the inner annular wall 2.112 form a first welding surface 11.

[0135] Specifically, the lower skeleton portion includes an outer annular wall 2.121 closed on the peripheral side of the winding portion 2.111, and the bottom of the outer annular wall 2.121 extends radially inward to form a receiving edge 2.122, and the inner annular wall 2.112 of the winding portion 2.111 is supported on the receiving edge 2.122, so that the upper and lower ends of the outer annular wall 2.121 constitute a second welding surface 12 that cooperates with the first welding surface 11 on the winding portion 2.111, wherein the first welding surface 11 and the second welding surface 12 are fixed by ultrasonic welding.

[0136] like Figure 14 to Figure 15 As shown, based on the above embodiment, the coil skeleton 2.1 assembly also includes a terminal seat, wherein the upper seat 2.11 also has a first side seat 2.8, and the lower seat 2.12 also has a second side seat 2.9, the first side seat 2.8 and the second side seat 2.9 are closed to form a terminal seat, and the first welding surface 11 and the second welding surface 12 are extended about the outline of the terminal seat to ensure the tightness of the fit between the upper seat 2.11 and the lower seat 2.12.

[0137] Specifically, a second welding matching structure is provided between the first side seat 2.8 and the second side seat 2.9, and the second welding matching structure includes a third welding surface 2.81. formed on the first side seat 2.8, and a fourth welding surface 2.91. formed on the second side seat 2.9, and the third welding surface 2.81. and the fourth welding surface 2.91. are matched with respect to the vertical surface, wherein, the vertical surface matching refers to that the third welding surface 2.81. and the fourth welding surface 2.91. are mainly fitted with the vertical surface, and there is still a horizontal plane between the two, and the horizontal plane mainly plays an indispensable bearing role, as well as a part of the welding surface.

[0138] Specifically, the side of the first side seat 2.8 is provided with an insert block 2.82, the side of the second side seat 2.9 is provided with a socket 2.92, the third welding surface 2.81 is formed on the vertical surface of the insert block 2.82, and the fourth welding surface 2.91 is formed on the vertical surface of the socket 2.92.

[0139] The plug block 2.82 and the socket 2.92 include a portion serving as a boundary of the terminal seat, and a portion extending outside the terminal seat to increase a welding surface area between the first side seat 2.8 and the second side seat 2.9.

[0140] As a further explanation of the second welding fitting structure, the vertical fitting area of ​​the first side seat 2.8 and the second side seat 2.9 is larger than the horizontal fitting area, thereby providing welding fixation on the vertical plane and further ensuring the position stability of the upper seat 2.11 and the lower seat 2.12.

[0141] Specifically, the plug block 2.82 is arranged in an L shape, and the socket 2.92 matches the contour of the plug block 2.82, thereby ensuring the matching stability of the terminal seat and improving the sealing of the terminal seat after closing.

[0142] Optionally, the plug block 2.82 and the socket 2.92 have a first portion extending outside the terminal block, and a second portion located on the boundary of the terminal block, and the thickness of the first portion is greater than that of the second portion.

[0143] Specifically, the third welding surface 2.81. and the fourth welding surface 2.91. are welded by ultrasonic welding.

[0144] Specifically, the third welding surface 2.81. and the fourth welding surface 2.91. are matched in a step manner, thereby increasing the matching area between the two and ensuring welding stability.

[0145] The coil frame 2.1 assembly of the above-mentioned embodiments one to three is adopted, and the upper seat 2.11 and the lower seat 2.12 are closed to each other to form a closed annular cavity, so as to ensure the protection of the coil assembly. The first and second welding surfaces between the winding part 2.111 and the lower frame part are fitted on the horizontal plane, and the third and fourth welding surfaces between the first side seat 2.8 and the second side seat 2.9 are fitted on the vertical plane. After the welding surfaces are matched in stepped surfaces, ultrasonic welding is used to ensure the matching stability of the upper seat 2.11 and the lower seat 2.12.

[0146] By pre-assembling the coil assembly and the wiring terminals in the upper seat 2.11 and the lower seat 2.12, integrated assembly is achieved, which facilitates the assembly of the tractor.

[0147] In the above embodiment, the winding part 2.111 is coplanar with the circumferential side boundary of the lower frame part, and the winding part 2.111 is coplanar with the bottom boundary of the lower frame part.

[0148] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A drainage control system, characterized in that: include: Housing (1); A motor assembly (2), comprising a coil frame (2.1), a rotor gear (10) for outputting torque, and a conductive assembly (2.6), wherein the coil frame (2.1) separates the housing (1) to form an outer cavity (8), a sealed cavity for accommodating the conductive assembly (2.6) is formed inside the coil frame (2.1), the sealed cavity is filled with potting glue to fix the conductive assembly (2.6), and a mounting plane (9) is arranged on the coil frame (2.1); A mounting plane (9) comprising a first shaft and a second shaft located on one side of the rotor gear (10), and a third shaft and a fourth shaft located on the other side of the rotor gear (10); A brake gear mechanism (3) comprises a first transmission wheel set (5) arranged on a first shaft, and a brake gear set (6) arranged on a second shaft, the first transmission wheel set (5) and the brake gear set (6) being meshed with each other, and the first transmission wheel set (5) being meshed with a rotor gear (10); A traction gear mechanism (4), comprising a transition gear (4.2) arranged on the third shaft, and a traction gear (4.1) arranged on the fourth shaft, the traction gear (4.1) and the transition gear (4.2) meshing with each other, a second transmission wheel set (7) being arranged between the transition gear (4.2) and the rotor gear (10), the traction gear (4.1) being connected to a traction rope, and the second transmission wheel set (7) being used for transmitting the torque of the rotor gear (10) to the traction gear (4.1); A coordinate system is constructed with the installation plane (9), the rotor gear (10) forms an origin, and a line connecting the rotor gear (10) and the first axis forms a Y axis, and a vector angle β between the first axis and the rotor gear (10) and the second axis is greater than 68°; and a vector angle α between the third axis and the rotor gear (10) and the fourth axis is greater than 69°.

2. A drainage control system according to claim 1, characterized in that: The conductive component (2.6) comprises a wiring terminal and a coil component, the coil component is wound in a coil frame (2.1), and the wiring terminal comprises a plug connector (2.62) and an insulating sleeve (2.61) fixed in a sealed cavity, the insulating sleeve (2.61) protrudes out of the sealed cavity and is provided with a wire, one end of the plug connector (2.62) is connected to the insulating sleeve (2.61), and the other end of the plug connector (2.62) is connected to the coil component.

3. A drainage control system according to claim 1, characterized in that: The coil frame (2.1) comprises an upper seat (2.11) and a lower seat (2.12); the upper seat (2.11) and the lower seat (2.12) are closed to form an annular winding cavity (2.3) and a terminal cavity (2.2) located on one side of the winding cavity (2.3); the terminal cavity (2.2) is connected to the winding cavity (2.3); the rotor gear (10) is arranged at the center of the winding cavity (2.3); and the winding cavity and the terminal cavity form a sealed cavity.

4. A drainage control system according to claim 3, characterized in that: The terminal cavity (2.2) is provided with a glue injection port (2.4), and a shielding unit (2.5) is closed on the glue injection port (2.4) by the sealing glue.

5. A drainage control system according to claim 3, characterized in that: An annular winding portion (2.111) is formed on the upper seat (2.11), and the lower seat (2.12) has a surrounding edge surrounding the winding portion (2.111). The upper seat (2.11) and the lower seat (2.12) are fixed by ultrasonic welding.

6. A drainage control system according to claim 1, characterized in that: The reduction ratio between the traction gear system and the rotor gear is greater than 245.

7. A drainage control system according to claim 6, characterized in that: The transmission ratio between the traction gear and the transition gear is 4.2, and the transmission ratio between the rotor gear and the second transmission gear set is 3.

4.

8. A drainage control system according to claim 1, characterized in that: The traction gear mechanism (4) further comprises a cam assembly (4.3) which is in transmission cooperation with the second transmission wheel set (7); the brake gear set (6) further comprises a sector tooth plate (6.6); the sector tooth plate (6.6) cooperates with the first transmission wheel set (5); and the cam assembly (4.3) meshes with the second transmission wheel set (7).

9. A drainage control system according to claim 1, characterized in that: The brake gear set (6) comprises: a mounting shaft, a brake gear (6.1) sleeved on the mounting shaft in sequence, a shaft sleeve (6.2), a magnetic steel (6.3) embedded in the outer periphery of the shaft sleeve (6.2), and a gear cup (6.4) covered on the outer periphery of the magnetic steel (6.3); a disk body (6.11) and a first positioning seat (6.12) are formed on the brake gear (6.1); a torsion spring (6.5) is provided on the outer sleeve of the first positioning seat (6.12), and the free end of the torsion spring (6.5) abuts against the disk body (6.11); a first shaft protrusion (6.21) extending between the mounting shaft and the first positioning seat (6.12) is provided at the bottom of the shaft sleeve (6.2), and the bottom of the shaft sleeve (6.2) is supported on the end surface of the first positioning seat (6.12).

10. A drainage control system according to claim 9, characterized in that: A second positioning seat (6.22) is provided on the top of the shaft sleeve (6.2), a second shaft protrusion (6.41) inserted into the second positioning seat (6.22) is provided on the bottom of the gear cup (6.4), and a convex point (6.42) supported on the second positioning seat (6.22) is also provided on the bottom of the second shaft protrusion (6.41).

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