Motor carrying silicon nitride heating element and stirrer

Abstract

The invention relates to the technical field of motors, in particular to a motor carrying a silicon nitride heating element and a stirrer, and the motor comprises a motor shell, a main body structure, a heating structure, a maintenance structure, an indication structure and a heat dissipation structure. The heating structure adopts a silicon nitride heating element, so that the temperature of insulating oil in the motor shell can be quickly increased, the lubricating effect of the insulating oil in the motor shell is better, the abrasion of parts in the motor is reduced, and the use effect of the motor in a low-temperature environment is improved; the stator iron core is driven to rotate through the maintenance structure, the design of the maintenance hole and the pluggable heating rod is matched, the motor shell does not need to be disassembled, insulating oil does not need to be emptied, the maintenance efficiency is improved, meanwhile, the position of the stator iron core is conveniently locked after maintenance, and normal operation of the motor is prevented from being influenced; the heat dissipation structure is in direct contact with a heating source, the heat dissipation effect is improved, meanwhile, the temperature in the motor is effectively controlled in cooperation with the heating structure, permanent magnet demagnetization and winding insulation aging are effectively avoided, and the service life of the motor is prolonged.

Description

Technical Field

[0001] This invention relates to the field of motor technology, specifically to a motor and a mixer equipped with a silicon nitride heating element. Background Technology

[0002] In the fields of industrial production and civil equipment, motors, as the core components of energy conversion and power output, directly determine the working efficiency and service life of downstream equipment (such as mixers, pumps, and transmission mechanisms) based on their operational stability, environmental adaptability, and ease of maintenance, especially in the application scenarios of mixing equipment.

[0003] In traditional oil-immersed motors, the viscosity of the insulating oil inside increases significantly at low temperatures, resulting in decreased fluidity and an inability to quickly form a uniform oil film. Bearing grease tends to harden at low temperatures, increasing the coefficient of friction. This leads to a sudden increase in bearing friction torque during motor startup, and may even cause a "stuck" phenomenon. The resistance of the stator winding wires increases as the temperature decreases, making it impossible to drive the stirring paddle for high-viscosity materials, which can easily cause a "stalling" fault. Frequent startups over a long period of time can lead to overheating of the windings, accelerated bearing wear, and a shortened motor life. In existing low-temperature startup solutions, traditional metal heating tubes have slow thermal response and poor heating uniformity, while external heating jackets have high heat loss because heat must be conducted through the motor casing, and they cannot accurately heat key heat-generating and heat-requiring components such as the stator core and bearings. Traditional heating elements are mostly installed axially or fixed with bolts. During maintenance, it is necessary to disassemble the motor housing, drain the insulating oil (for oil-immersed motors), and remove the binding tape at the end of the stator winding. The replacement time for a single heating element is long and the disassembly and replacement efficiency is low. In existing heat dissipation solutions, the heat sink on the outer casing relies on air convection, and the heat dissipation efficiency is greatly affected by the ambient temperature. External tubular coolers require additional installation space, and the cooling water needs to be dissipated indirectly through the motor casing, resulting in high thermal resistance and making it difficult to accurately control the internal operating temperature of the motor. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a motor and a mixer equipped with a silicon nitride heating element.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a motor equipped with a silicon nitride heating element, comprising a motor housing, a main structure disposed inside the motor housing, and a heating structure; The main structure includes a motor shaft, a rotor core, a permanent magnet, and a stator core. The motor shaft, rotor core, permanent magnet, and stator core are installed inside the motor housing. The heating structure includes mounting rails and a rotating ring. Two mounting rails are fixedly connected inside the motor housing. A rotating ring is rotatably connected to one of the mounting rails. Multiple sleeves are fixedly connected in a circumferential array on the rotating ring. A first spring is installed inside each sleeve. Multiple silicon nitride heating rods are circumferentially arranged through the stator core. One end of each silicon nitride heating rod has a plug that engages with a sleeve. Both ends of the first spring abut against the rotating ring and the plug, respectively. The plug has an L-shaped limiting groove. A limiting post is fixedly connected inside the sleeve, engaging with the limiting groove. A mounting ring is rotatably connected to the other mounting rail. The other end of each silicon nitride heating rod has a mounting head that penetrates the mounting ring. The mounting ring has a wiring groove to prevent wire tangling. Multiple sets of first contacts are arranged in a circumferential array on the mounting ring. A second contact is provided on the mounting head, and the first and second contacts are in electrical contact.

[0006] Specifically, the mounting head is provided with a drive groove with a regular hexagonal cross-section and a snap-fit ​​groove.

[0007] Specifically, each end of the motor housing is fixedly connected to an end cap, a bearing body is installed between the end cap and the motor shaft, a bearing cap is fixedly connected to the end cap, the bearing cap abuts against the bearing body, a rotor core is fixedly connected to the motor shaft, a permanent magnet is fixedly connected to the rotor core, and the stator core is installed on the motor housing.

[0008] Specifically, a sealing gasket is provided between the end cover and the motor housing, a sealing ring is provided between the bearing cover and the end cover, an oil seal is provided on the end cover, and the motor shaft is rotatably connected to the oil seal.

[0009] Specifically, the motor housing is provided with a maintenance structure, which includes a worm and a worm ring. The worm ring is fixedly connected to the stator core, and the worm is rotatably connected to the motor housing. The worm meshes with the worm ring. A first sealing sleeve is fixedly connected to the motor housing, and the worm is rotatably connected to the first sealing sleeve. A slide rail is provided on the motor housing, and the stator core is rotatably connected to the slide rail. One of the end caps is provided with a maintenance hole, and a first sealing plug is threaded onto the maintenance hole.

[0010] Specifically, the motor housing has two sliding strips slidably connected to it, and two fixing rods are fixedly connected to the sliding strips. The stator core has four insertion holes, and the fixing rods are inserted into the insertion holes. The motor housing has four second sealing sleeves, and the fixing rods are slidably connected to the second sealing sleeves. A first screw is rotatably connected to the motor housing, and the first screw is threadedly connected to the sliding strips.

[0011] Specifically, the motor housing is provided with an indicator structure, which includes a transparent observation window and scale bars. The motor housing is provided with a transparent observation window, and the transparent observation window is provided with multiple scale bars. The mounting ring is provided with a circumferential array of multiple pointers that work in conjunction with the scale bars.

[0012] Specifically, the stator core is provided with a heat dissipation structure, which includes a water-cooling cavity and a water inlet. The stator core has a water-cooling cavity inside and two water inlets. A second spring is fixedly connected inside the stator core. A second sealing plug with a trapezoidal bottom cross-section is fixedly connected to the end of the second spring. The second sealing plug is slidably connected to the stator core. The stator core has two sealing rings that can form a sealing fit with the second sealing plug. Two connecting pipes are fixedly connected to the motor housing. A sliding tube is slidably connected inside the connecting pipe. The sliding tube is slidably connected to the sealing ring. The bottom end of the sliding tube abuts against the second sealing plug. The bottom end of the sliding tube has multiple diversion holes. A third sealing sleeve is provided between the sliding tube and the connecting pipe.

[0013] Specifically, two drive plates are slidably connected to the motor housing, the drive plates are fixedly connected to the slide tube, and a second screw is rotatably connected to the motor housing, the second screw being threadedly connected to the drive plates.

[0014] On the other hand, the present invention also provides a mixer, including the aforementioned motor equipped with a silicon nitride heating element.

[0015] The beneficial effects of this invention are: (1) The present invention provides a motor and a mixer equipped with a silicon nitride heating element. The motor housing is provided with a heating structure. The heating structure uses a silicon nitride heating element, which has a fast thermal response speed and can quickly increase the temperature of the insulating oil inside the motor housing, thereby increasing the motor's low-temperature starting torque. At the same time, it makes the internal insulating oil lubrication effect better, reduces the wear of internal parts of the motor, and improves the motor's performance in low-temperature environments.

[0016] (2) The motor and mixer equipped with silicon nitride heating element of the present invention have a maintenance structure on the motor housing. The maintenance structure drives the stator core to rotate. With the maintenance hole and pluggable heating rod design, there is no need to disassemble the motor housing and drain the insulating oil, which improves the maintenance efficiency. At the same time, it is easy to lock the position of the stator core after maintenance to avoid affecting the normal operation of the motor.

[0017] (3) The motor and mixer equipped with silicon nitride heating element of the present invention have a heat dissipation structure on the motor shell. The heat dissipation structure is in direct contact with the heat source, which improves the heat dissipation effect. At the same time, the heating structure effectively controls the temperature inside the motor, effectively avoids demagnetization of permanent magnets and aging of winding insulation, and improves the service life of the motor. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the motor housing and the main body structure of the present invention; Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A. Figure 4 for Figure 2 The diagram shown is an enlarged view of the structure of section B. Figure 5 for Figure 2 The diagram shows an enlarged view of section C. Figure 6 for Figure 5 The diagram shown is an enlarged view of the structure of part D. Figure 7 This is a schematic diagram of the connection structure between the stator core and the silicon nitride heating rod of the present invention; Figure 8 for Figure 7 The diagram shown is an enlarged view of the structure of part E. Figure 9 This is a schematic diagram of the connection structure between the stator core and the water-cooling cavity of the present invention; Figure 10 This is a schematic diagram of the connection structure between the motor shaft and the rotor core of the present invention; Figure 11 for Figure 10 The diagram shows an enlarged view of the F-section structure. Figure 12 This is a schematic diagram of the connection structure between the motor housing and the transparent observation window of the present invention; Figure 13 for Figure 12 The diagram shows an enlarged view of the G section structure. Figure 14 for Figure 13 The diagram shows an enlarged view of the H-section structure. Figure 15 This is a schematic diagram of the connection structure between the plug and the limiting groove of the present invention.

[0020] In the diagram: 1. Motor housing; 2. Main structure; 201. Motor shaft; 202. Rotor core; 203. Permanent magnet; 204. Stator core; 205. End cap; 206. Bearing body; 207. Bearing cap; 208. Sealing ring; 209. Oil seal; 210. Sealing gasket; 3. Heating structure; 301. Mounting rail; 302. Rotary ring; 303. Sleeve; 304. First spring; 305. Silicon nitride heating rod; 306. Plug; 307. Limiting groove; 308. Limiting post; 309. Mounting head; 310. Mounting ring; 311. Snap-in groove; 312. Drive groove; 313. Wiring groove; 314. First contact; 315. Second contact. 4. Inspection Structure; 401. Worm Gear; 402. Worm Ring; 403. First Sealing Sleeve; 404. Slide Rail; 405. Inspection Hole; 406. First Sealing Plug; 407. Sliding Strip; 408. First Screw; 409. Fixing Rod; 410. Insertion Hole; 411. Second Sealing Sleeve; 5. Indicating Structure; 501. Transparent Observation Window; 502. Scale Bar; 503. Pointer; 6. Heat Dissipation Structure; 601. Water Cooling Chamber; 602. Water Inlet; 603. Second Spring; 604. Second Sealing Plug; 605. Sealing Ring; 606. Sliding Tube; 607. Diverter Hole; 608. Connecting Pipe; 609. Third Sealing Sleeve; 610. Drive Plate; 611. Second Screw. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figures 1-6 , Figures 9-14 and Figure 15 As shown, the present invention provides a motor and a mixer equipped with a silicon nitride heating element, comprising a motor housing 1, a main structure 2 disposed inside the motor housing 1, and a heating structure 3; The main structure 2 includes a motor shaft 201, a rotor core 202, a permanent magnet 203, and a stator core 204. The motor shaft 201, the rotor core 202, the permanent magnet 203, and the stator core 204 are installed inside the motor housing 1. Heating structure 3 includes mounting rails 301 and a rotating ring 302. Two mounting rails 301 are fixedly connected inside the motor housing 1. A rotating ring 302 is rotatably connected to one of the mounting rails 301. Multiple inserts 303 are fixedly connected in a circumferential array on the rotating ring 302. A first spring 304 is installed inside each insert 303. Multiple silicon nitride heating rods 305 are circumferentially arranged through the stator core 204. One end of each silicon nitride heating rod 305 has a plug 306, which is inserted into the insert 303. The two ends of the first spring 304 abut against the rotating ring 302 and the plug 306, respectively. The plug 306 has an L-shaped limiting groove 307. The internal fixed connection of 303 includes a limiting post 308, which engages with a limiting groove 307. Another mounting rail 301 is rotatably connected to a mounting ring 310. The other end of the silicon nitride heating rod 305 is provided with a mounting head 309, which penetrates the mounting ring 310. The mounting ring 310 has a wiring groove 313 to prevent wire tangling. Multiple sets of first contacts 314 are arranged in a circumferential array on the mounting ring 310. The mounting head 309 has second contacts 315, and the first contacts 314 and second contacts 315 are in electrical contact. The mounting head 309 also has a driving groove 312 with a regular hexagonal cross-section and a latching groove 311. An end cap 205 is fixedly connected to each end of the motor housing 1. A bearing body 206 is installed between the end cap 205 and the motor shaft 201. A bearing cap 207 is fixedly connected to the end cap 205, and the bearing cap 207 abuts against the bearing body 206. A rotor core 202 is fixedly connected to the motor shaft 201, and a permanent magnet 203 is fixedly connected to the rotor core 202. A stator core 204 is installed on the motor housing 1. A sealing gasket 210 is provided between the end cap 205 and the motor housing 1. A sealing ring 208 is provided between the 07 and the end cover 205, and an oil seal 209 is provided on the end cover 205. The motor shaft 201 is rotatably connected to the oil seal 209. The rotor core 202 and the permanent magnet 203 are fixed on the motor shaft 201. Bearing bodies 206 are installed at both ends of the motor shaft 201. The stator core 204 is installed on the inner wall of the motor housing 1 to ensure that the air gap between the stator and the rotor is uniform. The end cover 205 is installed, the sealing gasket 210 is pressed and fixed with bolts. Then the bearing cover 207 and the oil seal 209 are installed. The main structure 2 is sealed to prevent leakage of insulating oil from the motor housing 1. The rotating ring 302 and the mounting ring 310 are respectively installed on the two mounting rails 301 to ensure flexible rotation. The plug 306 of the silicon nitride heating rod 305 is aligned with the socket 303 of the rotating ring 302 and inserted. The heating rod is rotated so that the limiting post 308 is engaged with the locking end of the limiting groove 307, the first spring 304 is compressed, and at the same time the second contact 315 of the mounting head 309 contacts the first contact 314 of the mounting ring 310. The external power cord is then embedded into the mounting ring 310. Within the wiring trough 313, the subsequent rotation of the mounting ring 310 will not affect the power supply to the first contact 314. When the ambient temperature is low, the power supply of the silicon nitride heating rod 305 is turned on. The current is transferred to the silicon nitride heating rod 305 through the first contact 314 and the second contact 315. The heating rod generates heat and transfers it to the stator core 204 and the winding. At the same time, it heats the lubricating oil inside the motor housing 1. The stator temperature is monitored by a temperature sensor. When the temperature rises to room temperature, the heating element is turned off and the main power supply of the motor is turned on, and the motor can start normally.

[0023] Specifically, such as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 , Figure 8 and Figure 11As shown, the motor housing 1 is provided with a maintenance structure 4, which includes a worm gear 401 and a worm ring 402. The worm ring 402 is fixedly connected to the stator core 204, and the worm gear 401 is rotatably connected to the motor housing 1. The worm gear 401 meshes with the worm ring 402. A first sealing sleeve 403 is fixedly connected to the motor housing 1, and the worm gear 401 is rotatably connected to the first sealing sleeve 403. The motor housing 1 is provided with a slide rail 404, and the stator core 204 is rotatably connected to the slide rail 404. One end cover 205 is provided with a maintenance... Hole 405, inspection hole 405 is threaded with a first sealing plug 406; two slide bars 407 are slidably connected on the motor housing 1, two fixing rods 409 are fixedly connected on the slide bars 407, four insertion holes 410 are provided on the stator core 204, the fixing rods 409 are inserted into the insertion holes 410, four second sealing sleeves 411 are provided on the motor housing 1, the fixing rods 409 are slidably connected to the second sealing sleeves 411, a first screw 408 is rotatably connected on the motor housing 1, the first screw 408 is threadedly connected to the slide bars 407; The motor housing 1 is provided with an indicator structure 5, which includes a transparent observation window 501 and scale bars 502. The motor housing 1 is provided with a transparent observation window 501, and the transparent observation window 501 is provided with multiple scale bars 502. The mounting ring 310 is provided with multiple pointers 503 arranged in a circumferential array to cooperate with the scale bars 502. During maintenance, the motor is stopped and the main power supply and heating element power supply are disconnected. The first sealing plug 406 on the end cover 205 is unscrewed, and then the first screw 408 is rotated to drive the slide bar 407 to drive the fixing rod 409 to pull out the insertion hole 410 of the stator core 204, thereby unlocking the stator rotation restriction. The worm gear 401 is rotated with a wrench, and the stator core 204 is slowly rotated through the worm ring 402 to observe the transparent observation window 502. Using the pointer 503 and scale bar 502 in the observation window 501, align the silicon nitride heating rod 305 to be inspected with the inspection hole 405. Insert an Allen wrench into the drive slot 312 of the mounting head 309 and rotate the heating rod in the reverse direction to move the limiting pin 308 from the locking end to the unlocking end of the limiting slot 307. The first spring 304 resets, causing the plug 306, silicon nitride heating rod 305, and mounting head 309 to pop out. At this time, use the latch slot 311 to pull out the old heating rod, insert the new heating rod and rotate to lock it. Operate the worm gear 401 in the reverse direction to reset the stator core 204. Rotate the first screw 408 to drive the fixing rod 409 to insert into the socket 410 and lock the stator core 204. Tighten the first sealing plug 406 to complete the inspection.

[0024] Specifically, such as Figure 4 , Figure 5 , Figure 6 and Figure 9As shown, the stator core 204 is provided with a heat dissipation structure 6, which includes a water-cooling cavity 601 and a water inlet 602. The stator core 204 has a water-cooling cavity 601 inside and two water inlets 602. A second spring 603 is fixedly connected inside the stator core 204. A second sealing plug 604 with a trapezoidal bottom cross-section is fixedly connected to the end of the second spring 603. The second sealing plug 604 is slidably connected to the stator core 204. The stator core 204 is provided with... There are two sealing rings 605 that can form a sealing fit with the second sealing plug 604. Two connecting pipes 608 are fixedly connected to the motor housing 1. A slide tube 606 is slidably connected inside the connecting pipe 608. The slide tube 606 is slidably connected to the sealing rings 605. The bottom end of the slide tube 606 abuts against the second sealing plug 604. The bottom end of the slide tube 606 is provided with multiple diversion holes 607. A third sealing sleeve 609 is provided between the slide tube 606 and the connecting pipe 608. Two drive plates are slidably connected to the motor housing 1. 610, the drive plate 610 is fixedly connected to the slide tube 606, and a second screw 611 is rotatably connected to the motor housing 1. The second screw 611 is threadedly connected to the drive plate 610. When stirring high-viscosity materials, if the stator temperature is too high, the second screw 611 is rotated to drive the slide tube 606 to move downward, pushing open the second sealing plug 604. Cooling water enters the water-cooling chamber 601 through the diversion hole 607 and the water inlet 602, absorbs the heat of the stator core 204, and then flows out from another diversion hole 607 and the water inlet. The slide tube 606 connected to 602 is discharged. Based on the feedback from the temperature sensor, the cooling water flow rate is adjusted to control the stator temperature at 60-80℃, so as to avoid demagnetization of the permanent magnet 203 or aging of the winding insulation. When it is necessary to repair the heating element, the second screw 611 can be rotated to retract the slide tube 606 into the motor housing 1. The second spring 603 pushes the second sealing plug 604 to lift the sealing ring 605 to seal, so as to prevent the water inside the water-cooled cavity 601 from leaking into the oil cavity inside the motor housing 1.

[0025] The present invention also provides a mixer, including a motor equipped with a silicon nitride heating element, wherein the motor described in the present invention is installed on the mixer as a power source, and the motor shaft 201 is connected to the mixing blade through a coupling, thereby realizing the mixing operation.

[0026] In use, the rotor core 202 and permanent magnet 203 are fixed to the motor shaft 201. Bearing bodies 206 are installed at both ends of the motor shaft 201. The stator core 204 is installed on the inner wall of the motor housing 1 to ensure uniform air gap between the stator and rotor. The end cap 205 is installed, the sealing gasket 210 is pressed and fixed with bolts. Then, the bearing cap 207 and oil seal 209 are installed to complete the sealing of the main structure 2 and prevent leakage of insulating oil inside the motor housing 1. The rotating ring 302 and the mounting ring 310 are respectively installed on two mounting rails 301 to ensure flexible rotation. The plug 306 of the silicon nitride heating rod 305 is aligned with the socket 303 of the rotating ring 302 and inserted. The heating rod is rotated to make the limiting post 308 engage with the limiting groove 30. At the locking end of 7, the first spring 304 is compressed, and at the same time, the second contact 315 of the mounting head 309 contacts the first contact 314 of the mounting ring 310. The external power line is embedded in the wiring groove 313 of the mounting ring 310. When the mounting ring 310 rotates, it will not affect the power supply to the first contact 314. When the ambient temperature is low, the power supply of the silicon nitride heating rod 305 is turned on. The current is transferred to the silicon nitride heating rod 305 through the first contact 314 and the second contact 315. The heating rod generates heat and transfers it to the stator core 204 and the winding. At the same time, it heats the lubricating oil inside the motor housing 1. The stator temperature is monitored by the temperature sensor. When the temperature rises to room temperature, the heating element is turned off and the main power supply of the motor is turned on. The motor can then start normally. When stirring high-viscosity materials, if the stator temperature is too high, the second screw 611 is rotated to drive the slide tube 606 to move downward, opening the second sealing plug 604. Cooling water enters the water-cooling chamber 601 through the diversion hole 607 and the water inlet 602, absorbs the heat of the stator core 204, and then is discharged from the slide tube 606 connected to another diversion hole 607 and the water inlet 602. According to the feedback of the temperature sensor, the cooling water flow rate is adjusted to control the stator temperature at 60-80℃, so as to avoid demagnetization of the permanent magnet 203 or aging of the winding insulation. When the heating element needs maintenance, the second screw 611 can be rotated to retract the slide tube 606 into the motor housing 1. The second spring 603 will push the second sealing plug 604 up the sealing ring 605 to seal it, preventing water from leaking from the water-cooling cavity 601 into the oil cavity inside the motor housing 1. Then, stop the machine and disconnect the main power supply of the motor from the power supply of the heating element. Unscrew the first sealing plug 406 on the end cap 205, and then rotate the first screw 408 to drive the slide bar 407 to pull the fixing rod 409 out of the insertion hole 410 of the stator core 204, unlocking the stator rotation restriction. Use a wrench to rotate the worm gear 401, which will drive the stator core 204 to rotate slowly through the worm ring 402. Observe through the transparent observation window 5. The pointer 503 and scale bar 502 in 01 are used to align the silicon nitride heating rod 305 to be inspected with the inspection hole 405. An Allen wrench is inserted into the drive groove 312 of the mounting head 309. The heating rod is rotated in the reverse direction, causing the limiting post 308 to move from the locking end to the unlocking end of the limiting groove 307. The first spring 304 is reset, causing the plug 306, silicon nitride heating rod 305 and mounting head 309 to pop out. At this time, the old heating rod is pulled out with the help of the buckle groove 311, the new heating rod is inserted and rotated to lock. The worm gear 401 is operated in the reverse direction to reset the stator core 204. The first screw 408 is rotated to drive the fixing rod 409 to insert into the insertion hole 410 to lock the stator core 204. The first sealing plug 406 is screwed back to complete the inspection. The motor described in this invention is installed on a mixer as a power source, and the motor shaft 201 is connected to the mixing blade through a coupling to realize the mixing operation.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A motor equipped with a silicon nitride heating element, characterized in that: It includes a motor housing (1), a main structure (2) disposed inside the motor housing (1), and a heating structure (3); The main structure (2) includes a motor shaft (201) and a stator core (204), and the stator core (204) is installed inside the motor housing (1). The heating structure (3) includes a mounting rail (301) and a rotating ring (302). Two mounting rails (301) are fixedly connected inside the motor housing (1). A rotating ring (302) is rotatably connected to one of the mounting rails (301). Multiple sleeves (303) are fixedly connected in a circular array on the rotating ring (302). A first spring (304) is installed inside each sleeve (303). Multiple silicon nitride heating rods (305) are circumferentially arranged through the stator core (204). A plug (306) is provided at one end of each silicon nitride heating rod (305). The plug (306) is inserted into the sleeve (303). The two ends of the first spring (304) abut against the rotating ring (302) and the plug (306) respectively. The plug (306) is provided with an L-shaped limiting groove (307). The sleeve (303) is fixedly connected to a limiting post (308). The limiting post (308) engages with the limiting groove (307). Another mounting track (301) is rotatably connected to a mounting ring (310). The other end of the silicon nitride heating rod (305) is provided with a mounting head (309). The mounting head (309) passes through the mounting ring (310).

2. The motor equipped with a silicon nitride heating element according to claim 1, characterized in that: The mounting ring (310) is provided with a wiring groove (313) to prevent the wires from getting tangled. The mounting ring (310) is provided with a circumferential array of multiple sets of first contacts (314). The mounting head (309) is provided with a second contact (315). The first contact (314) and the second contact (315) are in electrical contact. The mounting head (309) is provided with a drive groove (312) with a regular hexagonal cross section. The mounting head (309) is provided with a snap-fit ​​groove (311).

3. The motor equipped with a silicon nitride heating element according to claim 1, characterized in that: An end cap (205) is fixedly connected to each end of the motor housing (1). A bearing body (206) is installed between the end cap (205) and the motor shaft (201). A bearing cap (207) is fixedly connected to the end cap (205). The bearing cap (207) abuts against the bearing body (206). A rotor core (202) is fixedly connected to the motor shaft (201). A permanent magnet (203) is fixedly connected to the rotor core (202). The stator core (204) is installed on the motor housing (1).

4. A motor equipped with a silicon nitride heating element according to claim 3, characterized in that: A sealing gasket (210) is provided between the end cap (205) and the motor housing (1), a sealing ring (208) is provided between the bearing cap (207) and the end cap (205), an oil seal (209) is provided on the end cap (205), and the motor shaft (201) is rotatably connected to the oil seal (209).

5. A motor equipped with a silicon nitride heating element according to claim 3, characterized in that: The motor housing (1) is provided with a maintenance structure (4), which includes a worm (401) and a worm ring (402). The worm ring (402) is fixedly connected to the stator core (204). The worm (401) is rotatably connected to the motor housing (1). The worm (401) meshes with the worm ring (402). The first sealing sleeve (403) is fixedly connected to the motor housing (1). The worm (401) is rotatably connected to the first sealing sleeve (403). The motor housing (1) is provided with a slide rail (404). The stator core (204) is rotatably connected to the slide rail (404). One of the end caps (205) is provided with a maintenance hole (405). A first sealing plug (406) is threaded onto the maintenance hole (405).

6. A motor equipped with a silicon nitride heating element according to claim 5, characterized in that: Two slide bars (407) are slidably connected to the motor housing (1), and two fixing rods (409) are fixedly connected to the slide bars (407). The stator core (204) is provided with four insertion holes (410). The fixing rods (409) are inserted into the insertion holes (410). The motor housing (1) is provided with four second sealing sleeves (411). The fixing rods (409) are slidably connected to the second sealing sleeves (411). The motor housing (1) is rotatably connected with a first screw (408). The first screw (408) is threadedly connected to the slide bars (407).

7. A motor equipped with a silicon nitride heating element according to claim 1, characterized in that: The motor housing (1) is provided with an indicator structure (5), the indicator structure (5) includes a transparent observation window (501) and a scale bar (502). The motor housing (1) is provided with a transparent observation window (501), the transparent observation window (501) is provided with multiple scale bars (502), and the mounting ring (310) is provided with multiple pointers (503) arranged in a circular array to cooperate with the scale bars (502).

8. A motor equipped with a silicon nitride heating element according to claim 1, characterized in that: The stator core (204) is provided with a heat dissipation structure (6), which includes a water-cooling cavity (601) and a water inlet (602). The stator core (204) is provided with a water-cooling cavity (601) and two water inlets (602). A second spring (603) is fixedly connected inside the stator core (204). A second sealing plug (604) with a trapezoidal bottom cross-section is fixedly connected to the end of the second spring (603). The second sealing plug (604) is slidably connected to the stator core (204). The iron core (204) is provided with two sealing rings (605) that can form a sealing fit with the second sealing plug (604). The motor housing (1) is fixedly connected with two connecting pipes (608). The connecting pipe (608) is slidably connected with a slide tube (606). The slide tube (606) is slidably connected with the sealing rings (605). The bottom end of the slide tube (606) abuts against the second sealing plug (604). The bottom end of the slide tube (606) is provided with multiple diversion holes (607). A third sealing sleeve (609) is provided between the slide tube (606) and the connecting pipe (608).

9. A motor equipped with a silicon nitride heating element according to claim 8, characterized in that: Two drive plates (610) are slidably connected to the motor housing (1). The drive plates (610) are fixedly connected to the slide tube (606). A second screw (611) is rotatably connected to the motor housing (1). The second screw (611) is threadedly connected to the drive plates (610).

10. A mixer, characterized in that: Including the motor equipped with a silicon nitride heating element as described in any one of claims 1-9.

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