A wire-embedded stator with intelligent temperature control and heating function

Abstract

A wire-embedded stator with an intelligent temperature-controlled heating function relates to the technical field of vibration motor manufacturing. By providing an isolation plate and utilizing the air holes on the isolation plate, when the motor is working, the airflow generated by the rotor flows to the air holes, enters the wire slots of the stator through the air holes, and impacts the paddle plate, thereby driving the positioning sleeve and the sensor sleeve to rotate. Since the sensor sleeve and the positioning sleeve adopt a soft connection method, the vibration on the positioning sleeve can be buffered. Furthermore, as the sensor sleeve rotates, the gyroscopic effect generated by its own rotation can resist some radial vibration and also have a certain shock-absorbing effect, thereby preventing the vibration from affecting the sensor performance.

Description

Technical Field

[0001] The present invention relates to the technical field of vibration motor manufacturing, and in particular to a wire-embedded stator with an intelligent temperature control and heating function. Background Art

[0002] The vibration motor consists of a stator, a rotor and an eccentric block. The rotor is installed in the stator and the magnetic field changes between the two drive the rotor to rotate. The eccentric block is installed at the end of the rotor shaft and the centrifugal force generated by the high-speed rotation of the eccentric block causes the motor to vibrate.

[0003] When the vibration motor is in a low temperature environment, the low temperature will reduce the resistance of the copper wire on the motor stator and rotor. The reduced resistance will cause the current to increase, which is easy to damage the power supply or the electrical system of the motor. In addition, the low temperature will inhibit the movement of magnetic domains of the magnetic material, resulting in a decrease in the magnetic permeability of the silicon steel sheet. The reduction in magnetic permeability will lead to a weakening of the magnetic field strength under the same current, thereby affecting the torque generation of the motor and affecting the normal starting of the motor. Moreover, if the temperature is too low, the fluidity of the lubricating oil between the shafts in the motor will deteriorate, which will greatly reduce the lubrication effect, increase the wear of the bearings in the motor, and damage the motor. In order to ensure the normal starting of the motor in an extremely cold environment, a preheating treatment is usually adopted before the motor is started. The motor is preheated using the built-in heating wire of the motor. The temperature sensor on the motor monitors that the temperature reaches the set range before the motor is started.

[0004] To facilitate the detection of the winding temperature on the motor, the temperature sensor is usually fixedly installed in the stator winding coil. For the vibration motor with a connected shaft, the motor and the vibration unit are directly connected. During its operation, the vibration will also be transmitted to the stator inside the motor. The traditional temperature sensor installation method is prone to damage to the sensor sensing element under vibration. Summary of the Invention

[0005] The present invention aims to overcome the problem that the traditional installation method of the temperature sensor on the motor stator is easy to cause damage to the temperature sensor when the motor is in a vibrating working state. The purpose is to provide an embedded wire stator with intelligent temperature control and heating function.

[0006] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions:

[0007] A wire-embedded stator with intelligent temperature control and heating function, comprising: a stator body, a heating ring, a support frame, a heat dissipation ring tube, a sensor patch, and an isolation plate;

[0008] The inner ring side of the stator body is provided with winding posts in a matrix at equal angles, and a wire groove is provided between two adjacent winding posts. The heat dissipation ring pipe includes a first straight pipe, a second straight pipe, and a bent pipe. The first straight pipe and the second straight pipe are parallel to each other. The two ends of the first straight pipe and the second straight pipe are connected by a bent pipe to form an annular structure. The first straight pipe is located inside the stator body, and the second straight pipe is located in the wire groove.

[0009] The support frame is fixedly mounted on the second straight tube, a positioning sleeve is rotatably mounted on the support frame, the heating ring is fixedly mounted on the positioning sleeve, the tail end of the positioning sleeve is connected to the sensor sleeve through a flexible connection, the sensor sleeve is sleeved on the second straight tube, the sensor patch is fixed on the sensor sleeve, and the outer ring of the positioning sleeve is provided with a dial plate in an equiangular matrix;

[0010] The two ends of the isolation plate are embedded in two adjacent winding poles. An air hole is provided on the isolation plate. An air guide protrusion is provided at the port of one end of the air hole close to the axis of the stator body. The other end of the air hole is located in the wire groove, and the port is vertically facing one of the shift plate surfaces.

[0011] Furthermore, a flow chamber is provided on the second straight tube, an impeller is installed inside the flow chamber, the axle of the impeller is connected to the rotating shaft by gear meshing, the rotating shaft extends out of the flow chamber, a driven ring is rotatably installed on the second straight tube, the driven ring and the rotating shaft are connected by gear meshing, the outer ring of the driven ring is provided with a first fin plate in an equal angle matrix, the inner ring side of the sensor sleeve is provided with a second fin plate in an equal angle matrix, and the first fin plate and the second fin plate are alternately arranged.

[0012] Furthermore, a buffer rubber sleeve is sleeved on the contact end side of the isolation plate and the winding column.

[0013] Furthermore, the inner side wall of the wire trough is provided with a heat dissipation groove, and the heat dissipation groove is arranged in a spiral shape along the inner side wall of the wire trough.

[0014] Furthermore, a connecting ring is fixed on the second straight tube, and two arc-shaped spring pieces are provided between the connecting ring and the isolation plate.

[0015] Furthermore, a fan blade is installed on the positioning sleeve.

[0016] Furthermore, a buffer spring is provided between the positioning sleeve and the sensor sleeve, and the buffer spring is fixed on the positioning sleeve.

[0017] The beneficial effects of the present invention are:

[0018] By setting up an isolation plate and utilizing the air holes on the isolation plate, when the motor is working, the air flow generated by the rotor flows into the air holes, enters the wire slots of the stator through the air holes, and impacts the paddle plate, thereby driving the positioning sleeve and the sensor sleeve to rotate. Since the sensor sleeve and the positioning sleeve adopt a flexible connection method, the vibration on the positioning sleeve can be buffered. Moreover, as the sensor sleeve rotates, the gyroscopic effect generated by its own rotation can resist some radial vibration and also play a certain shock-absorbing effect, thereby protecting the sensor.

[0019] When the sensor sleeve rotates, the first wing plate and the second wing plate drive the driven ring to rotate. The driven ring drives the rotating shaft to rotate through the gear meshing, thereby driving the impeller in the flow chamber to rotate. The rotation of the impeller drives the transformer oil in the second straight tube to flow, thereby increasing the fluidity of the transformer oil inside the heat dissipation ring tube and improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a side view of the present invention;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the cable duct structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the installation of the positioning sleeve of the present invention;

[0024] Figure 5 This is a schematic diagram of the installation of the driven ring of the present invention;

[0025] Figure 6 This is a structural diagram of the flow chamber of the present invention.

[0026] In the figure: 1. stator body; 2. heating ring; 3. support frame; 4. heat dissipation ring tube; 5. sensor patch; 6. isolation plate; 11. winding column; 12. wire groove; 101. first straight tube; 102. second straight tube; 103. bent tube; 21. positioning sleeve; 22. sensor sleeve; 23. dial plate; 24. air hole; 25. air guide bump; 31. first rubber ring; 32. foot strip; 33. second rubber ring; 41. flow chamber; 42. rotating shaft; 43. impeller; 44. driven ring; 45. gear ring; 46. gear; 47. first fin; 48. second fin; 51. buffer rubber sleeve; 52. heat dissipation groove; 53. connecting ring; 54. arc-shaped spring; 55. fan blade; 56. buffer spring. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0028] Example 1:

[0029] like Figure 1-4 As shown; a wire-embedded stator with intelligent temperature control and heating function, comprising: a stator body 1, a heating ring 2, a support frame 3, a heat dissipation ring tube 4, a sensor patch 5, and an isolation plate 6;

[0030] Winding posts 11 are arranged in a matrix at equal angles on the inner ring side of the stator body 1. A wire slot 12 is provided between two adjacent winding posts 11. The heat dissipation ring tube 4 includes a first straight tube 101, a second straight tube 102, and a curved tube 103. The first straight tube 101 and the second straight tube 102 are parallel to each other. The two ends of the first straight tube 101 and the second straight tube 102 are connected by the curved tube 103 to form an annular structure. The first straight tube 101 is located inside the stator body 1, and the second straight tube 102 is located in the wire slot 12.

[0031] The support frame 3 is fixedly mounted on the second straight tube 102, and a positioning sleeve 21 is rotatably mounted on the support frame 3. The heating ring 2 is fixedly mounted on the positioning sleeve 21. The tail end of the positioning sleeve 21 is connected to the sensor sleeve 22 through a flexible connection. The sensor sleeve 22 is sleeved on the second straight tube 102. The sensor patch 5 is fixed on the sensor sleeve 22. The outer ring of the positioning sleeve 21 is provided with a shift plate 23 in an equiangular matrix. The inner diameter of the sensor sleeve 22 is larger than the outer diameter of the second straight tube 102. The positioning sleeve 21 is coaxially arranged with the second straight tube 102.

[0032] The two ends of the isolation plate 6 are embedded in the two adjacent winding posts 11. The isolation plate 6 is provided with an air hole 24. The air hole 24 is provided with an air guide protrusion 25 at the end near the axis of the stator body 1. The other end of the air hole 24 is located in the wire slot 12, and the end is perpendicular to the surface of one of the shift plates 23.

[0033] The heating ring 2 is an annular bracket, on which a ceramic heating plate is embedded in an equiangular matrix. The sensor patch 5 is a platinum resistance temperature sensor. At least two sensor patches 5 are fixed on the outer ring side of the sensor sleeve 22, and are fixed on the outer ring side of the sensor sleeve 22 in an equiangular matrix. The sensor patch 5 and the ceramic heating plate are respectively connected to the communication interface of the PIC microprocessor. The PIC microprocessor collects the temperature values ​​of all sensor patches 5 on the same sensor outer tube and calculates the average value as the real-time collected temperature value. The real-time collected temperature value is compared with the set temperature range through the PID fuzzy algorithm. When the temperature is lower than the set temperature range, the PIC microprocessor controls the ceramic heating plate to work, and uses the heat generated by the ceramic heating plate to heat the heat dissipation ring tube 4. The heat dissipation ring tube 4 is filled with transformer oil, and the transformer oil is used to conduct heat. After the temperature reaches the set range, the PIC microprocessor controls the ceramic heating plate to turn off.

[0034] The outer ring of the sensor sleeve 22 is surrounded by a first rubber ring 31. A matrix of foot strips 32 are connected to the outside of the first rubber ring 31 at equal angles. The foot strips 32 are made of rubber and embedded with a wire mesh. The other end of the foot strips 32 is fixedly connected to a second rubber ring 33. The second rubber ring 33 is looped around the positioning sleeve 21. When the positioning sleeve 21 rotates, the sensor sleeve 22 is pulled to rotate together through the foot strips 32, reducing the vibration transmission between the positioning sleeve 21 and the sensor sleeve 22.

[0035] When the motor is started, the rotor rotates in the stator, and centrifugal force is generated when the rotor rotates. Due to the viscosity of the air, a rotating air ring is formed on the outer ring of the rotor. When the outer ring of the air ring contacts the air guide protrusion 25, part of the air flow will enter the air hole 24 under the guidance of the air guide protrusion 25, and will be sprayed into the wire slot 12 from the air hole 24. The gas rushes out of the air hole 24 and sprays vertically to one of the paddles 23, thereby pushing the paddle 23 to move around the axis of the positioning sleeve 21. As the paddle 23 moves, the paddle 23 and the positioning sleeve 21 are driven to rotate as a whole. The positioning sleeve 21 is connected to the sensor sleeve 22 with a soft connection. As the positioning The rotation of the sleeve 21 will also drive the sensor sleeve 22 to rotate, and the motor will generate vibration. As the speed of the positioning sleeve 21 increases, it will drive the sensor sleeve 22 to rotate coaxially with the positioning sleeve 21. Since the inner diameter of the sensor sleeve 22 is larger than the outer diameter of the second straight tube 102, the positioning sleeve 21 and the second straight tube 102 are coaxially arranged, so that the sensor sleeve 22 is separated from the second straight tube 102. Due to the use of a soft connection, the transmission of motor vibration to the sensor sleeve 22 is reduced. Furthermore, as the sensor sleeve 22 rotates, a gyro effect will be generated, which can buffer the vibration perpendicular to the axis, thereby protecting the temperature sensor.

[0036] Example 2:

[0037] On the basis of Example 1, after the temperature on the stator rises, the motor works for a long time, and the stator winding will also generate heat during the operation. At this time, although the ceramic heating plate on the heating ring 2 is turned off, this part of the heat will also cause the stator temperature to rise. The transformer oil inside the heat pipe has no fluidity, and the heat transfer efficiency is low, which will affect the heat dissipation effect. In order to solve the above technical problems, as Figure 1-6As shown; a flow chamber 41 is provided on the second straight tube 102, an impeller 43 is installed inside the flow chamber 41, the shaft of the impeller 43 is connected to the rotating shaft 42 by gear meshing, the rotating shaft 42 extends out of the flow chamber 41, the rotating shaft 42 is installed on the flow chamber 41, a driven ring 44 is rotatably installed on the second straight tube 102, one end of the driven ring 44 is fixedly connected to the gear ring 45, a gear 46 is installed at the end of the rotating shaft 42, the gear 46 meshes with the gear ring 45, the outer ring of the driven ring 44 is provided with a first wing plate 47 in an equal angle matrix, the inner ring side of the sensor sleeve 22 is provided with a second wing plate 48 in an equal angle matrix, the first wing plate 47 and the second wing plate 48 are alternately arranged, and when the driven ring 44 is coaxial with the sensor sleeve 22, there is an overlapping part between the first rocker plate and the second rocker plate;

[0038] When the positioning sleeve 21 drives the sensor sleeve 22 to rotate, the second paddle inside the sensor sleeve 22 drives the first paddle to deflect, thereby driving the gear ring 45 on the driven ring 44 to rotate, and the gear ring 45 engages the gear 46 to drive the rotating shaft 42 to rotate. The impeller 43 on the rotating shaft 42 stirs in the flow chamber 41, promoting the flow of transformer oil inside the flow chamber 41, thereby promoting the circulation of transformer oil in the heat dissipation ring tube 4, improving the heat transfer efficiency, and enhancing the heat dissipation effect.

[0039] Example 3:

[0040] On the basis of Example 1, Figure 1 、 Figure 3 As shown, a buffer rubber sleeve 51 is sleeved on the contact end of the isolation plate 6 and the winding post 11, and the side surface of the isolation plate 6 close to the axis of the stator body 1 and the end of the winding post 11 form a cylindrical surface;

[0041] like Figure 2 As shown, the inner wall of the wire trough 12 is provided with a heat dissipation groove 52, and the heat dissipation groove 52 is spirally arranged along the inner wall of the wire trough 12;

[0042] The port of the wire slot 12 close to the rotor side is blocked by the isolation plate 6. When the rotor rotates, the airflow enters the wire slot 12 through the air hole 24. However, it is restricted by the isolation plate 6 and does not flow back to the rotor side, thereby preventing the gas in the wire slot 12 from flowing back to the rotor and causing resistance to the rotor rotation. The inner wall of the wire slot 12 is provided with a heat dissipation groove 52. When the coil is wound on the winding post 11, the heat dissipation groove 52 prevents the innermost coil from completely contacting the winding post 11. When the gas in the wire slot 12 flows, it can also enter the heat dissipation groove 52, thereby improving the heating and heat dissipation effect of the coil on the winding post 11.

[0043] like Figure 3 、 Figure 4As shown, a connecting ring 53 is fixed to the second straight tube 102, and two arc-shaped spring pieces 54 are provided between the connecting ring 53 and the isolation plate 6. The arc openings of the two arc-shaped spring pieces 54 are symmetrically arranged on both sides of the second straight tube 102, forming a triangular structure with the isolation plate 6. The arc-shaped spring pieces 54 support the second straight tube 102 to prevent it from shifting.

[0044] The fan blades 55 are installed on the positioning sleeve 21. There are two positioning sleeves 21, which are located at both ends of the sensor sleeve 22 respectively, and each positioning sleeve 21 is installed with a fan blade 55. When the positioning sleeve 21 rotates, it drives the fan blades 55 to rotate, thereby promoting the air flow in the wire groove 12, thereby improving the heat transfer efficiency.

[0045] A buffer spring 56 is provided between the positioning sleeve 21 and the sensor sleeve 22. One end of the buffer spring 56 is fixed on the positioning sleeve 21, and the other end is located on the inner ring side of the first rubber ring 31. When the motor is not working, the rotor does not rotate, and the positioning sleeve 21 and the sensor sleeve 22 will not rotate. The sensor sleeve 22 will move downward under the action of its own gravity. By providing the buffer spring 56, when the motor is not started, the buffer spring 56 can support the first rubber ring 31, thereby supporting the sensor sleeve 22, reducing the axial offset between the sensor sleeve 22 and the positioning sleeve 21, and reducing the radial jitter of the sensor sleeve 22 when the motor is started.

[0046] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire-embedded stator with intelligent temperature control and heating function, characterized in that: include: Stator body, heating ring, support frame, heat dissipation ring tube, sensor patch, isolation plate; The inner ring side of the stator body is provided with winding posts in a matrix at equal angles, and a wire groove is provided between two adjacent winding posts. The heat dissipation ring pipe includes a first straight pipe, a second straight pipe, and a bent pipe. The first straight pipe and the second straight pipe are parallel to each other. The two ends of the first straight pipe and the second straight pipe are connected by a bent pipe to form an annular structure. The first straight pipe is located inside the stator body, and the second straight pipe is located in the wire groove. The support frame is fixedly mounted on the second straight tube, a positioning sleeve is rotatably mounted on the support frame, the heating ring is fixedly mounted on the positioning sleeve, the tail end of the positioning sleeve is connected to the sensor sleeve through a flexible connection, the sensor sleeve is sleeved on the second straight tube, the sensor patch is fixed on the sensor sleeve, and the outer ring of the positioning sleeve is provided with a dial plate in an equiangular matrix; The two ends of the isolation plate are embedded in two adjacent winding poles. An air hole is provided on the isolation plate. An air guide protrusion is provided at the port of one end of the air hole close to the axis of the stator body. The other end of the air hole is located in the wire groove, and the port is vertically facing one of the shift plate surfaces.

2. The wire-embedded stator with intelligent temperature control and heating function according to claim 1, characterized in that: A flow chamber is provided on the second straight tube, and an impeller is installed inside the flow chamber. The axle of the impeller is connected to the rotating shaft through gear meshing, and the rotating shaft extends out of the flow chamber. A driven ring is rotatably installed on the second straight tube, and the driven ring is connected to the rotating shaft through gear meshing. The outer ring of the driven ring is provided with a first fin plate in an equal angle matrix, and the inner ring side of the sensor sleeve is provided with a second fin plate in an equal angle matrix, and the first fin plate and the second fin plate are alternately arranged.

3. The wire-embedded stator with intelligent temperature control and heating function according to claim 1, characterized in that: The isolation plate is sheathed with a buffer rubber sleeve on the contact end side of the winding column.

4. The wire-embedded stator with intelligent temperature control and heating function according to claim 1, characterized in that: The inner side wall of the wire trough is provided with a heat dissipation groove, and the heat dissipation groove is spirally arranged along the inner side wall of the wire trough.

5. The wire-embedded stator with intelligent temperature control and heating function according to claim 1, characterized in that: A connecting ring is fixed on the second straight tube, and two arc-shaped spring pieces are provided between the connecting ring and the isolation plate.

6. The wire-embedded stator with intelligent temperature control and heating function according to claim 1, characterized in that: The fan blade is installed on the positioning sleeve.

7. The wire-embedded stator with intelligent temperature control and heating function according to claim 1, characterized in that: A buffer spring is provided between the positioning sleeve and the sensor sleeve, and the buffer spring is fixed on the positioning sleeve.

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