Motor with silicon nitride heat dissipation structure and meat grinder

Abstract

The invention belongs to the technical field of motor equipment, particularly relates to a motor provided with a silicon nitride heat dissipation structure and a meat grinder, and aims to solve the problem that the heat dissipation capability of the current motor cannot be adaptively adjusted according to a real-time thermal load state, the following scheme is provided: the motor comprises a shell, and one side of the shell is fixedly connected with a sealing block; a tail shell is fixedly connected to the other side of the machine shell, an inner machine is arranged in the machine shell and fixedly connected with the inner ring of the sealing block, and a partition plate is fixedly connected to the side, close to the tail shell, of the inner machine. According to the motor with the silicon nitride heat dissipation structure and the meat grinder, the opening and closing degree of the heat dissipation air channel is automatically adjusted according to the actual working temperature of the motor, the defect that a traditional motor heat dissipation system cannot be adjusted in real time along with load changes is overcome, cold air entering is reduced during low load, the motor is prevented from being too cold, and the service life of the motor is prolonged. And the heat dissipation airflow is enhanced during high load, and the temperature rise is effectively controlled, so that the heat dissipation efficiency and the operation stability of the motor under different working conditions are improved.

Description

Technical Field

[0001] This invention relates to the field of motor equipment technology, and in particular to a motor and a meat grinder equipped with a silicon nitride heat dissipation structure. Background Technology

[0002] An electric motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. A meat grinder is an important piece of equipment in the meat processing process. It processes raw meat into granular minced meat of different sizes according to different process requirements, and its core power equipment is an electric motor.

[0003] Currently, common motor cooling methods are mainly divided into two categories: passive cooling and active cooling. Passive cooling usually relies on natural convection and radiation on the surface of the motor housing, or adds fixed heat dissipation fins to the housing to increase the heat dissipation area. Active cooling usually involves adding a cooling fan to the tail of the motor, using the fan rotation to force the introduction of cooling airflow, forming a fixed axial or radial heat dissipation channel. The cooling capacity of these two types is fixed or only changes unidirectionally with the motor speed, and cannot be adaptively adjusted according to the real-time thermal load of the motor. Summary of the Invention

[0004] This invention discloses a motor and a meat grinder with a silicon nitride heat dissipation structure, aiming to solve the technical problem in the background art that the heat dissipation capacity of motors cannot be adaptively adjusted according to the real-time thermal load status.

[0005] The present invention proposes a motor with a silicon nitride heat dissipation structure, including a housing, a sealing block fixedly connected to one side of the housing, a tail shell fixedly connected to the other side of the housing, and an inner unit disposed inside the housing. The inner unit is fixedly connected to the inner ring of the sealing block. A partition plate is fixedly connected to the side of the inner unit near the tail shell. A silicon nitride ring is fixedly connected to the outer surface of the middle part of the inner unit, and a temperature control component is disposed on the silicon nitride ring. An adaptive heat dissipation module is disposed on the partition plate. The partition plate has multiple ventilation strips and ventilation openings that are equidistantly distributed in a circle; The temperature control component includes a bimetallic strip and two external sliding stages that are slidably connected to the outer surface of a silicon nitride ring. The adaptive heat dissipation module includes two sliding rings slidably connected to the outer surface of the partition plate. A solenoid valve is fixedly connected to the outer surface of the partition plate, and a cylinder is provided on the solenoid valve. Multiple cover plates distributed equidistantly in a circle are slidably connected to the side of the partition plate near the indoor unit.

[0006] In a preferred embodiment, the silicon nitride ring has an embedded mounting groove, a bimetallic strip is disposed inside the embedded mounting groove, an encapsulation block is fixedly connected between the bimetallic strip and the embedded mounting groove, and symmetrical sliding grooves are formed on both sides of the embedded mounting groove. Two external sliding platforms are slidably connected to the two sliding grooves respectively. A return spring is fixedly connected between the two external sliding platforms and the inner wall of the sliding groove. An extension rod is fixedly connected to the opposite side of the two external sliding platforms. A ball seat is fixedly connected to the end of the extension rod. The ball seat contacts the bimetallic strip. A through hole is formed on the two external sliding platforms. A support rod is fixedly connected inside the through hole. The other end of the two support rods is fixedly connected to the two sliding rings respectively.

[0007] In a preferred embodiment, an annular groove is provided on the side of the partition plate near the indoor unit. Two sliding rings are slidably connected inside the annular groove and are symmetrically distributed. An internal control switch is provided on the solenoid valve. The internal control switch has two control slots. Control rods are fixedly connected to both sliding rings. The two control rods are slidably connected inside the two control slots respectively. A connecting frame is fixedly connected to the telescopic end of the cylinder. The connecting frame is fixedly connected to a cover plate. Multiple cover plates are fixedly connected to the same parallel ring.

[0008] In a preferred embodiment, the internal unit includes a rotor, and a ventilation mesh is provided on the tail casing.

[0009] In a preferred embodiment, an additional rotating rod is provided inside the tail housing. One end of the additional rotating rod is fixedly connected to the end of the rotor via a sleeve, and the other end of the additional rotating rod is fixedly connected to the inner surface of the tail housing. The outer wall of the additional rotating rod is non-cylindrical, and a cooling fan is slidably connected to the outside of the additional rotating rod.

[0010] In a preferred embodiment, a plurality of heat dissipation fins are fixedly connected to the housing, the heat dissipation fins are distributed equidistantly in a circle on the housing, and a plurality of heat dissipation strips are distributed equidistantly in a circle on the housing, the heat dissipation strips having the same length as the heat dissipation fins.

[0011] In a preferred embodiment, the external sliding connection of the additional rotating rod is a linkage ring seat, which is located between the cooling fan and the partition plate. The linkage ring seat and the cooling fan are fixedly connected by a short rod. A buffer spring is sleeved on the external side of the additional rotating rod. The two ends of the buffer spring are fixedly connected to the linkage ring seat and the sleeve of the additional rotating rod, respectively. A movable heat dissipation module is provided on the linkage ring seat.

[0012] In a preferred embodiment, the active heat dissipation module includes multiple active heat sinks, which are respectively disposed inside the heat dissipation strips. Multiple L-shaped hangers distributed equidistantly in a circle are fixedly connected to the inner surface of the housing. Multiple bearing blocks distributed equidistantly in a circle are fixedly connected to the inner surface of the sealing block. The L-shaped hangers and bearing blocks are symmetrically distributed on both sides of the multiple active heat sinks. A sliding groove is provided on the opposite side of the L-shaped hangers and bearing blocks. Both ends of the active heat sinks are slidably connected to the sliding grooves of the L-shaped hangers and bearing blocks, respectively. A functional spring is fixedly connected to the sliding grooves of the L-shaped hangers and bearing blocks. One end of the functional spring is fixedly connected to the active heat sink, and the other end of the functional spring is fixedly connected to the inner wall of the sliding groove.

[0013] In a preferred embodiment, the active heat dissipation module further includes multiple umbrella frames, which are circumferentially and equidistantly fixedly connected to the linkage ring seat. The lower side of each of the multiple active heat dissipation plates is fixedly connected to a base frame. The top of each of the multiple umbrella frames and the multiple base frames are rotatably connected to a collar via bearings. The L-shaped hanger is rotatably connected to a lower pulley and an upper pulley via bearings. The same traction rope is fixedly connected between the collar at the top of the umbrella frame and the collar on the base frame. The traction rope starts from the collar at the top of the umbrella frame, passes around the upper pulley and the lower pulley in sequence, and is finally fixedly connected to the collar on the base frame.

[0014] A meat grinder includes a motor configured with a silicon nitride heat dissipation structure as described above.

[0015] As can be seen from the above, the motor with a silicon nitride heat dissipation structure provided by the present invention can automatically adjust the opening and closing degree of the heat dissipation air duct according to the actual operating temperature of the motor, which overcomes the shortcomings of traditional motor heat dissipation systems that cannot adjust in real time with load changes. It reduces the entry of cold air and avoids the motor from overcooling when the load is low, and enhances the heat dissipation airflow and effectively controls the temperature rise when the load is high, thereby improving the heat dissipation efficiency and operating stability of the motor under different operating conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the mounting position structure of a motor with a silicon nitride heat dissipation structure proposed in this invention; Figure 2 This is a schematic diagram of the overall structure of a motor with a silicon nitride heat dissipation structure proposed in this invention. Figure 3 This is a schematic diagram showing the disassembled structure of a motor with a silicon nitride heat dissipation structure proposed in this invention; Figure 4 This is a schematic diagram of the internal structure of an electric motor with a silicon nitride heat dissipation structure proposed in this invention. Figure 5 This is a schematic diagram of a low-load temperature control component and adaptive heat dissipation module structure for a motor with a silicon nitride heat dissipation structure proposed in this invention. Figure 6 This is a schematic diagram of a high-load temperature control component and adaptive heat dissipation module structure for a motor with a silicon nitride heat dissipation structure proposed in this invention. Figure 7 This is a schematic diagram of the solenoid valve position structure of a motor with a silicon nitride heat dissipation structure proposed in this invention. Figure 8 This is a schematic diagram of the internal structure of the tail housing of an electric motor with a silicon nitride heat dissipation structure proposed in this invention. Figure 9 This is a schematic diagram of a live-position heat dissipation module structure for a motor with a silicon nitride heat dissipation structure proposed in this invention. Figure 10 This is a schematic diagram of the linkage ring seat and the live-position heat dissipation module structure of a motor with a silicon nitride heat dissipation structure proposed in this invention. Figure 11 This is a schematic diagram of the L-shaped hanger position structure of a motor with a silicon nitride heat dissipation structure proposed in this invention.

[0017] In the diagram: 1. Housing; 2. Sealing block; 3. Tail housing; 4. Indoor unit; 5. Divider plate; 501. Ventilation strip; 502. Ventilation opening; 6. Silicon nitride ring; 7. Temperature control component; 701. Bimetallic strip; 702. External slide; 703. Embedded mounting slot; 704. Encapsulation block; 705. Return spring; 706. Extension rod; 707. Ball seat; 708. Support rod; 8. Adaptive heat dissipation module; 801. Sliding ring; 802. Cylinder; 803. Cover plate; 804. Solenoid valve; 805. Internal control switch; 806. Adjustment slot ; 807, Control rod; 808, Connecting frame; 809, Parallel ring; 9, Rotor; 10, Ventilation mesh; 11, Additional rotating rod; 12, Cooling fan; 13, Cooling fins; 14, Cooling strips; 15, Linkage ring seat; 16, Buffer spring; 17, Live-position cooling module; 1701, Live-position heat sink; 1702, Umbrella frame; 1703, L-shaped hanger; 1704, Bearing block; 1705, Functional spring; 1706, Lower pulley; 1707, Upper pulley; 1708, Base frame; 1709, Axle collar; 1710, Traction rope. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] The motor with a silicon nitride heat dissipation structure disclosed in this invention is mainly used in scenarios where the heat dissipation capacity of current motors cannot be adaptively adjusted according to the real-time thermal load status.

[0020] Reference Figures 1-11A motor with a silicon nitride heat dissipation structure includes a housing 1, a sealing block 2 fixedly connected to one side of the housing 1, a tail shell 3 fixedly connected to the other side of the housing 1, and an inner unit 4 disposed inside the housing 1. The inner unit 4 is fixedly connected to the inner ring of the sealing block 2. A partition plate 5 is fixedly connected to the side of the inner unit 4 near the tail shell 3. A silicon nitride ring 6 is fixedly connected to the outer surface of the middle part of the inner unit 4, and a temperature control component 7 is disposed on the silicon nitride ring 6. An adaptive heat dissipation module 8 is disposed on the partition plate 5. The partition plate 5 has multiple ventilation strips 501 and ventilation openings 502 that are equidistantly distributed in a circle; Temperature control component 7 includes a bimetallic strip 701 and two external slides 702 that are slidably connected to the outer surface of silicon nitride ring 6; The adaptive heat dissipation module 8 includes two sliding rings 801 that are slidably connected to the outer surface of the partition plate 5. A solenoid valve 804 is fixedly connected to the outer surface of the partition plate 5. A cylinder 802 is provided on the solenoid valve 804. A plurality of cover plates 803 that are circumferentially distributed are slidably connected to the side of the partition plate 5 near the indoor unit 4.

[0021] Specifically, the partition plate 5 separates the working environment of the indoor unit 4 from the ventilation environment of the tail shell 3, which facilitates adaptive heat dissipation of the motor. The ventilation strip 501 is for conventional ventilation and heat dissipation, and the ventilation opening 502 is a specific part for adjusting the heat dissipation efficiency of the motor, that is, the degree of air circulation is controlled by changing the opening size of the ventilation opening 502. The silicon nitride ring 6 has excellent thermal conductivity, which can quickly transfer the heat inside the motor to the bimetallic strip 701 of the temperature control component 7. The bimetallic strip 701 deforms according to temperature changes, and the deformation is precisely converted into the relative displacement of the two external slides 702 through the structure of the extension rod 706 and the ball seat 707. This displacement is transmitted in real time to the sliding ring 801 of the adaptive heat dissipation module 8 through the support rod 708. Finally, the opening and closing angle of the cover plate 803 is controlled by the solenoid valve 804 and the cylinder 802, thereby linearly and accurately adjusting the opening area of ​​the vent 502. The device automatically adjusts the opening and closing degree of the heat dissipation air duct according to the actual operating temperature of the motor, overcoming the shortcomings of traditional motor heat dissipation systems that cannot adjust in real time with load changes. At low loads, it reduces the entry of cold air and avoids the motor from overcooling, while at high loads, it enhances the heat dissipation airflow and effectively controls the temperature rise, thereby improving the heat dissipation efficiency and operating stability of the motor under different operating conditions.

[0022] Reference Figure 4 , Figure 5 and Figure 6In a preferred embodiment, the silicon nitride ring 6 has an embedded mounting groove 703, a bimetallic strip 701 is disposed inside the embedded mounting groove 703, an encapsulation block 704 is fixedly connected between the bimetallic strip 701 and the embedded mounting groove 703, and symmetrical sliding grooves are provided on both sides of the embedded mounting groove 703. Two external sliding platforms 702 are slidably connected to the two sliding grooves respectively. A return spring 705 is fixedly connected between the two external sliding platforms 702 and the inner wall of the sliding groove. An extension rod 706 is fixedly connected to the opposite side of the two external sliding platforms 702. A ball seat 707 is fixedly connected to the end of the extension rod 706. The ball seat 707 is in contact with the bimetallic strip 701. A through hole is provided on the two external sliding platforms 702. A support rod 708 is fixedly connected inside the through hole. The other end of the two support rods 708 is fixedly connected to the two sliding rings 801 respectively.

[0023] Specifically, motor operation involves two extreme conditions: low load and high load; At low load, the motor output power is small and the temperature is low. In order to control the internal temperature and facilitate the subsequent motor heating operation, it is necessary to reduce the internal air convection: the silicon nitride ring 6 transfers the temperature of the indoor unit 4 to the bimetallic strip 701. The bimetallic strip 701 has a small opening and closing degree and the relative displacement of the two external slides 702 is small. Under high load, the motor output power is high and the temperature is high, so it is necessary to enhance the internal air convection: the temperature of the indoor unit 4 is transferred to the bimetallic strip 701, the opening and closing degree is large, and the relative displacement of the two external slides 702 is large. Low load and high load alternation process: The temperature change of the motor can be directly fed back through the bimetallic strip 701, which is then converted into the relative displacement distance between the two external slides 702; When unloaded, only the ventilation strip 501 is used for heat dissipation, maintaining a relatively sealed internal environment and reducing external pollution; The return spring 705 can reset the external slide 702, and together with the extension rod 706 and the ball seat 707, it ensures that the ball seat 707 is always in contact with the bimetallic strip 701, so as to ensure real-time feedback of the relative displacement of the two external slides 702 when the temperature changes.

[0024] Reference Figure 5 , Figure 6 and Figure 7In a preferred embodiment, an annular groove is provided on the side of the partition plate 5 near the indoor unit 4. Two sliding rings 801 are slidably connected inside the annular groove and are symmetrically distributed. An internal control switch 805 is provided on the solenoid valve 804. Two control slots 806 are provided on the internal control switch 805. Control rods 807 are fixedly connected to both sliding rings 801. The two control rods 807 are slidably connected inside the two control slots 806 respectively. A connecting frame 808 is fixedly connected to the telescopic end of the cylinder 802. The connecting frame 808 is fixedly connected to a cover plate 803. Multiple cover plates 803 are fixedly connected to the same parallel ring 809.

[0025] Specifically, the displacement changes of the two external slides 702 will drive the two sliding rings 801 in real time, and the degree of activation of the solenoid valve 804 controlled by the internal control switch 805 is determined by the deflection position of the two control rods 807 in the control groove 806. When under low load, the two control rods 807 deflection distance in the control groove 806 is small, the extension distance of the starting cylinder 802 is short, the rotation amplitude of the cover plate 803 is small, the opening degree of the vent 502 is small, and the degree of internal air convection is low. Under high load, the two control rods 807 deflect a large distance in the control groove 806, the cylinder 802 extends a long distance after starting, the cover plate 803 rotates a large amplitude, the vent 502 has a large opening degree, and the internal air convection degree is high. The cover plate 803 is a component that regulates the opening degree of the vent 502: after the sliding ring 801 rotates, the deflection degree of the two regulating rods 807 in the regulating groove 806 controls the solenoid valve 804, adjusts the extension distance of the cylinder 802, and controls the rotation of the cover plate 803.

[0026] Reference Figure 2 and Figure 3 In a preferred embodiment, the indoor unit 4 includes a rotor 9, and a ventilation mesh 10 is provided on the tail shell 3.

[0027] Specifically, the tail shell 3 is connected to the outside through the ventilation net 10, and the internal temperature of the motor is dissipated through the partition plate 5 and the ventilation net 10 in sequence.

[0028] Reference Figure 3 and Figure 4 In a preferred embodiment, an additional rotating rod 11 is provided inside the tail shell 3. One end of the additional rotating rod 11 is fixedly connected to the end of the rotor 9 through a sleeve, and the other end of the additional rotating rod 11 is fixedly connected to the inner surface of the tail shell 3. The outer wall of the additional rotating rod 11 is non-cylindrical, and a cooling fan 12 is slidably connected to the outside of the additional rotating rod 11.

[0029] Specifically, when the motor is operating, the rotation of the rotor 9 will drive the auxiliary rotating rod 11 to rotate, and the cooling fan 12 will rotate, accelerating the internal airflow to be discharged from the ventilation net 10, thereby achieving heat dissipation.

[0030] Reference Figure 2 and Figure 3 In a preferred embodiment, a plurality of heat dissipation fins 13 are fixedly connected to the housing 1. The heat dissipation fins 13 are distributed equidistantly in a circle on the housing 1, and a plurality of heat dissipation strips 14 are distributed equidistantly in a circle on the housing 1. The heat dissipation strips 14 are the same length as the heat dissipation fins 13.

[0031] Specifically, heat dissipation fin 13 is for conventional heat dissipation; The heat sink 14 is the part that achieves adaptive heat dissipation. Normally, the movable heat sink 1701 blocks the heat sink 14 to maintain the sealed environment of the housing 1. During operation, as the movable heat sink 1701 moves within the heat sink 14, the heat sink 14 will form an opening to allow airflow to pass through. The sealed environment of the housing 1 is broken, forming a breathing heat dissipation. External airflow enters the housing 1 from the opening of the heat sink 14.

[0032] Reference Figure 4 , Figure 8 and Figure 9 In a preferred embodiment, the external sliding connection of the auxiliary rotating rod 11 is a linkage ring seat 15, which is located between the cooling fan 12 and the partition plate 5. The linkage ring seat 15 and the cooling fan 12 are fixedly connected by a short rod. A buffer spring 16 is sleeved on the external side of the auxiliary rotating rod 11. The two ends of the buffer spring 16 are fixedly connected to the linkage ring seat 15 and the sleeve of the auxiliary rotating rod 11, respectively. A movable heat dissipation module 17 is provided on the linkage ring seat 15.

[0033] Specifically, the cooling fan 12 rotates synchronously with the rotor 9. Since the cooling fan 12 can move along the auxiliary rotating rod 11, as the speed of the rotor 9 increases, under the action of centrifugal force, the cooling fan 12 will drive the linkage ring seat 15 to move away from the indoor unit 4. After the speed decreases, it will reset under the action of the elastic force of the buffer spring 16.

[0034] Reference Figures 8-11In a preferred embodiment, the retractable heat dissipation module 17 includes multiple retractable heat sinks 1701, which are respectively disposed inside the heat dissipation strip 14. Multiple L-shaped hangers 1703, equidistantly distributed circumferentially, are fixedly connected to the inner surface of the housing 1. Multiple bearing blocks 1704, equidistantly distributed circumferentially, are fixedly connected to the inner surface of the sealing block 2. The L-shaped hangers 1703 and bearing blocks 1704 are symmetrically located on both sides of the multiple retractable heat sinks 1701. The L-shaped hanger 1703 and the support block 1704 are respectively provided with sliding grooves on the opposite side. The two ends of the movable heat sink 1701 are slidably connected in the sliding grooves of the L-shaped hanger 1703 and the support block 1704. Functional springs 1705 are fixedly connected in the sliding grooves of the L-shaped hanger 1703 and the support block 1704. One end of the functional spring 1705 is fixedly connected to the movable heat sink 1701, and the other end of the functional spring 1705 is fixedly connected to the inner wall of the sliding groove.

[0035] In this solution, the movable heat dissipation module 17 also includes multiple umbrella frames 1702. The multiple umbrella frames 1702 are fixedly connected to the linkage ring seat 15 at equal intervals around the circumference. The lower side of the multiple movable heat dissipation plates is fixedly connected to the base frame 1708. The top of the multiple umbrella frames 1702 and the multiple base frames 1708 are rotatably connected to the collars 1709 through bearings. The L-shaped hanger 1703 is rotatably connected to the lower pulley 1706 and the upper pulley 1707 through bearings. The same traction rope 1710 is fixedly connected between the collar 1709 at the top of the umbrella frame 1702 and the collar 1709 on the base frame 1708. The traction rope 1710 starts from the collar 1709 at the top of the umbrella frame 1702, passes around the upper pulley 1707 and the lower pulley 1706 in sequence, and is finally fixedly connected to the collar 1709 on the base frame 1708.

[0036] Specifically, the live heat dissipation module 17 can further adaptively adjust the heat dissipation efficiency of the motor; Under low load, the rotor 9 rotates at a lower speed, the cooling fan 12 rotates slowly, the centrifugal force it experiences is small, the live heat sink 1701 is slightly changed or not changed, and the internal air convection is low. Under high load, the rotor 9 speed increases, the cooling fan 12 rotates at a high speed and experiences a large centrifugal force. The linkage ring seat 15 moves away from the indoor unit 4 on the auxiliary rotating rod 11. At this time, under the pulling action of the traction rope 1710, the movable heat sink 1701 is pulled downward and moves up and down on the L-shaped hanger 1703 and the bearing block 1704. The functional spring 1705 is compressed, and the movable heat sink 1701 moves down from the heat sink 14. The heat sink 14 changes from a blocked state to an open edge state. The external airflow enters from the open part of the heat sink 14, and with the blowing of the cooling fan 12, a rapid airflow convection is formed inside. In practical application scenarios: When under low load / no load: The system keeps the ventilation opening 502 at a small opening or closed, maintaining a relatively sealed environment inside the casing 1. This not only reduces heat loss caused by excessive ventilation (which helps the motor to quickly reach the optimal operating temperature), but more importantly, it effectively prevents external pollutants such as dust, oil, and water vapor from entering, extending the motor's lifespan. It is especially suitable for meat grinders to work in humid and oily environments. Under high load: The system responds quickly, opening the vent 502 to the maximum, and combined with the accelerated rotation of the cooling fan 12 directly driven by the rotor 9, a powerful "breathing" cooling air duct is formed (external air enters from the heat sink 14, and internal hot air is discharged from the vent 10 of the tail shell 3), which greatly enhances the forced convection cooling effect, can quickly suppress the motor temperature rise, ensure the motor operates stably under continuous high load, and improve power density.

[0037] A meat grinder includes a motor configured with a silicon nitride heat dissipation structure as described above.

[0038] Working principle: The motor proposed in this invention adopts two independent but related adaptive heat dissipation mechanisms; The first set, based on temperature sensing, adjusts the opening of the vent 502, specifically as follows: At low load, the motor output power is small and the temperature is low. In order to control the internal temperature and facilitate the subsequent motor heating operation, it is necessary to reduce the internal air convection: the silicon nitride ring 6 transfers the temperature of the indoor unit 4 to the bimetallic strip 701. The opening and closing degree of the bimetallic strip 701 is small, the relative displacement of the two external slides 702 is small, the deflection distance of the two control rods 807 in the control groove 806 is small, the extension distance of the starting cylinder 802 is short, the rotation amplitude of the cover plate 803 is small, the opening degree of the vent 502 is small, and the degree of internal air convection is low. Under high load, the motor output power is high and the temperature is high, so it is necessary to enhance the internal air convection: the temperature of the indoor unit 4 is transferred to the bimetallic strip 701, the opening and closing degree is large, the relative displacement of the two external slides 702 is large, the deflection distance of the two control rods 807 in the control groove 806 is large, the extension distance of the starting cylinder 802 is long, the rotation amplitude of the cover plate 803 is large, the opening degree of the vent 502 is large, and the degree of internal air convection is high. The second set, based on speed sensing, adjusts the opening of the heat sink 14 on the casing 1, specifically as follows: Under low load, the rotor 9 rotates at a lower speed, the cooling fan 12 rotates slowly, the centrifugal force it experiences is small, the live heat sink 1701 is slightly changed or not changed, and the internal air convection is low. Under high load, the rotor 9 speed increases, the cooling fan 12 rotates at a high speed and experiences a large centrifugal force. The linkage ring seat 15 moves away from the indoor unit 4 on the auxiliary rotating rod 11. At this time, under the pulling action of the traction rope 1710, the movable heat sink 1701 is pulled downward and moves up and down on the L-shaped hanger 1703 and the bearing block 1704. The functional spring 1705 is compressed, and the movable heat sink 1701 moves down from the heat sink 14. The heat sink 14 changes from a blocked state to an open edge state. The external airflow enters from the open part of the heat sink 14, and with the blowing of the cooling fan 12, a rapid airflow convection is formed inside. This increases the air intake area and creates a synergistic heat dissipation effect with the first system, directly linking it to the motor speed (i.e., the heat source) to form a fast-response heat dissipation path.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A motor with a silicon nitride heat dissipation structure, comprising a housing (1), characterized in that, A sealing block (2) is fixedly connected to one side of the housing (1), and a tail shell (3) is fixedly connected to the other side of the housing (1). An internal unit (4) is provided inside the housing (1). The internal unit (4) is fixedly connected to the inner ring of the sealing block (2). A partition plate (5) is fixedly connected to the side of the internal unit (4) near the tail shell (3). A silicon nitride ring (6) is fixedly connected to the outer surface of the middle part of the internal unit (4). A temperature control component (7) is provided on the silicon nitride ring (6). An adaptive heat dissipation module (8) is provided on the partition plate (5). The partition plate (5) is provided with a plurality of ventilation strips (501) and ventilation openings (502) that are equidistantly distributed in a circle. The temperature control component (7) includes a bimetallic strip (701) and two external sliding stages (702) that are slidably connected to the outer surface of the silicon nitride ring (6). The adaptive heat dissipation module (8) includes two sliding rings (801) that are slidably connected to the outer surface of the partition plate (5). A solenoid valve (804) is fixedly connected to the outer surface of the partition plate (5). A cylinder (802) is provided on the solenoid valve (804). A plurality of cover plates (803) that are circumferentially distributed are slidably connected to the side of the partition plate (5) near the indoor unit (4).

2. The motor with a silicon nitride heat dissipation structure according to claim 1, characterized in that, The silicon nitride ring (6) has an embedded mounting groove (703), and a bimetallic strip (701) is disposed inside the embedded mounting groove (703). An encapsulation block (704) is fixedly connected between the bimetallic strip (701) and the embedded mounting groove (703). Symmetrical sliding grooves are provided on both sides of the embedded mounting groove (703). Two external sliding platforms (702) are slidably connected to the two sliding grooves respectively. The two external sliding platforms (702) are fixed to the inner wall of the sliding groove. A return spring (705) is connected to each of the two external slides (702), and extension rods (706) are fixedly connected to each other on opposite sides. Ball seats (707) are fixedly connected to the ends of the extension rods (706). Ball seats (707) are in contact with bimetallic strips (701). Through holes are provided on the two external slides (702), and support rods (708) are fixedly connected inside the through holes. The other ends of the two support rods (708) are fixedly connected to two sliding rings (801) respectively.

3. The motor with a silicon nitride heat dissipation structure according to claim 1, characterized in that, An annular groove is provided on the side of the partition plate (5) near the indoor unit (4). Two sliding rings (801) are slidably connected inside the annular groove and are symmetrically distributed. An internal control switch (805) is provided on the solenoid valve (804). Two control slots (806) are provided on the internal control switch (805). Control rods (807) are fixedly connected to both sliding rings (801). The two control rods (807) are slidably connected inside the two control slots (806). A connecting frame (808) is fixedly connected to the telescopic end of the cylinder (802). The connecting frame (808) is fixedly connected to a cover plate (803). Multiple cover plates (803) are fixedly connected to the same parallel ring (809).

4. The motor with a silicon nitride heat dissipation structure according to claim 1, characterized in that, The internal unit (4) includes a rotor (9), and a ventilation mesh (10) is provided on the tail shell (3).

5. A motor with a silicon nitride heat dissipation structure according to claim 4, characterized in that, An additional rotating rod (11) is provided inside the tail shell (3). One end of the additional rotating rod (11) is fixedly connected to the end of the rotor (9) through a sleeve. The other end of the additional rotating rod (11) is fixedly connected to the inner surface of the tail shell (3). The outer wall of the additional rotating rod (11) is non-cylindrical. A cooling fan (12) is slidably connected to the outside of the additional rotating rod (11).

6. A motor with a silicon nitride heat dissipation structure according to claim 5, characterized in that, Multiple heat dissipation fins (13) are fixedly connected to the housing (1). The heat dissipation fins (13) are distributed equidistantly in a circle on the housing (1). Multiple heat dissipation strips (14) are distributed equidistantly in a circle on the housing (1). The heat dissipation strips (14) are the same length as the heat dissipation fins (13).

7. A motor with a silicon nitride heat dissipation structure according to claim 6, characterized in that, The external sliding connection of the additional rotating rod (11) is a linkage ring seat (15), which is located between the cooling fan (12) and the partition plate (5). The linkage ring seat (15) and the cooling fan (12) are fixedly connected by a short rod. The external sleeve of the additional rotating rod (11) is fitted with a buffer spring (16), and the two ends of the buffer spring (16) are fixedly connected to the linkage ring seat (15) and the sleeve of the additional rotating rod (11) respectively. A live heat dissipation module (17) is provided on the linkage ring seat (15).

8. A motor with a silicon nitride heat dissipation structure according to claim 7, characterized in that, The active heat dissipation module (17) includes multiple active heat sinks (1701), which are respectively disposed inside the heat dissipation strip (14). Multiple L-shaped hangers (1703) are fixedly connected to the inner surface of the housing (1) and are distributed equidistantly in a circular pattern. Multiple bearing blocks (1704) are fixedly connected to the inner surface of the sealing block (2) and are distributed equidistantly in a circular pattern. The L-shaped hangers (1703) and the bearing blocks (1704) are symmetrically distributed on both sides of the multiple active heat sinks (1701). The L-shaped hanger (1703) and the bearing block (1704) are respectively provided with a sliding groove on the opposite side. The two ends of the movable heat sink (1701) are slidably connected in the sliding groove of the L-shaped hanger (1703) and the bearing block (1704). A functional spring (1705) is fixedly connected in the sliding groove of the L-shaped hanger (1703) and the bearing block (1704). One end of the functional spring (1705) is fixedly connected to the movable heat sink (1701), and the other end of the functional spring (1705) is fixedly connected to the inner wall of the sliding groove.

9. A motor with a silicon nitride heat dissipation structure according to claim 8, characterized in that, The active heat dissipation module (17) also includes multiple umbrella frames (1702), which are circumferentially and equidistantly fixedly connected to the linkage ring seat (15). A base frame (1708) is fixedly connected to the lower side of each of the multiple active heat dissipation plates. A bearing collar (1709) is rotatably connected to the top of each umbrella frame (1702) and to each base frame (1708). A lower pulley (1709) is rotatably connected to the L-shaped hanger (1703) via a bearing. 6) The same traction rope (1710) is fixedly connected between the top collar (1709) of the umbrella frame (1702) and the collar (1709) on the base frame (1708). The traction rope (1710) starts from the top collar (1709) of the umbrella frame (1702), passes around the top pulley (1707) and the lower pulley (1706) in sequence, and is finally fixedly connected to the collar (1709) on the base frame (1708).

10. A meat grinder, characterized in that, Including a motor with a silicon nitride heat dissipation structure as described in any one of claims 1-9.

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