A motor capable of emergency cooling

Abstract

The present invention relates to the field of motor technology, and in particular to a motor capable of emergency cooling, comprising a housing, a cover, a rotor, a storage box, and a heat conduction plate; the housing is provided with two covers; a rotor is rotatably connected to the interior of the housing; the housing is provided with an interlayer; a plurality of storage boxes are connected to the interlayer; the storage boxes are made of a heat-conducting metal material; each storage box is connected to a heat conduction plate; and the heat conduction plate divides the interior of the storage box into a water storage chamber and a material storage chamber. The present invention achieves a reduction in the temperature inside the storage box by mixing carbonamide stored in the storage box with water. The storage box directly contacts the housing, transferring the low temperature to the housing, achieving continuous heat dissipation, and thereby performing emergency cooling of the housing, effectively preventing damage to the rotor and other key components due to abnormally high temperatures, and significantly improving the thermal protection performance and safety reliability of the motor under extremely high temperature or overload conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a motor capable of emergency cooling. Background Art

[0002] When a motor is used to drive a farm irrigation pump or a reservoir drainage pump, it must be mounted directly on the ground during operation. To prevent impurities such as dust and weeds from being drawn into the motor during operation and heat dissipation, a conventional solution is to install a filter at the motor's air intake. However, as the motor continues to operate and draws in external cooling air, impurities accumulate on the filter surface, forming a blockage. This causes the air intake resistance to continue to increase, resulting in a gradual decrease in the motor's heat dissipation efficiency, and ultimately leads to abnormal overheating due to insufficient heat dissipation.

[0003] Furthermore, when the motor overheats due to factors such as sudden load changes or excessively high ambient temperature, the existing cooling fan installed at the end of the motor is limited by its inherent air volume and heat dissipation efficiency, and it is difficult to effectively cope with the sudden temperature rise demand, resulting in the heat accumulated inside the casing unable to be discharged in time, ultimately causing the rotor winding insulation to age, the bearing lubrication to fail, and other key components to suffer irreversible performance degradation or even permanent damage due to continuous high temperature. Summary of the Invention

[0004] In order to overcome the disadvantages that when the motor is running on the ground, the heat dissipation efficiency of the air inlet filter decreases due to impurities accumulation, and the heat dissipation capacity of the existing cooling fan is insufficient, resulting in heat accumulation inside the motor, and ultimately causing key components such as the rotor windings and bearings to be permanently damaged due to overheating, the present invention provides a motor with emergency cooling.

[0005] Technical solution: A motor capable of emergency cooling, comprising a casing, a cover and a rotor; two covers are provided on the casing; a rotor is rotatably connected inside the casing; the front end of the rotor passes through the cover located on the front side; a plurality of cooling fins are provided on the casing; it also includes a storage box, a heat conduction plate and a heat dissipation component; an interlayer is provided on the casing; a plurality of storage boxes are connected in the interlayer; the storage boxes are made of heat-conducting metal material; each storage box is connected to a heat conduction plate; the heat conduction plate divides the interior of the storage box into a water storage chamber and a material storage chamber; each storage box is connected to a cover plate; each heat conduction plate is provided with a bimetallic strip; the cross-section of the bimetallic strip is serrated; a heat dissipation component for dissipating heat from the motor is provided on the cover.

[0006] Furthermore, the heat dissipation assembly includes an impeller, an annular sealing plate, electromagnet 1 and electromagnet 2; two impellers for dissipating heat for the motor are fixedly connected to the rotor; several air inlets are provided on each machine cover; each air inlet is provided with a filter for intercepting impurities; several air output ports are provided on each machine cover; the interior of the machine cover is connected with the casing and the interior of the interlayer through the air output ports; each machine cover is provided with an air outlet groove; each machine cover is rotatably connected to an annular sealing plate for sealing the air output port; the annular sealing plate is composed of several sealing plates and a fixed ring; an electromagnet 1 is fixedly connected to each annular sealing plate; an electromagnet 2 is fixedly connected to each machine cover; electromagnet 1 and electromagnet 2 generate magnetic attraction to each other when energized.

[0007] Furthermore, two rotating plates are rotatably connected to the housing; each storage box is located between the rotating plate and the housing.

[0008] Furthermore, each water storage cavity is located above the corresponding material storage cavity.

[0009] Furthermore, each cover plate is provided with an air valve; each air valve is communicated with the interior of the storage cavity; and the interior of the storage cavity is generally in a negative pressure state.

[0010] Furthermore, it also includes a guide plate; two guide plates for guiding airflow are fixedly connected to the casing; each guide plate is located between the air delivery port and the casing, and the side wall of the guide plate is inclined toward the interlayer.

[0011] Furthermore, each air inlet is arranged on the upper side of the hood.

[0012] Furthermore, a protective cover is also included; a protective cover for blocking impurities is fixedly connected to the upper side of each cover; the protective cover is located on the upper side of the air inlet.

[0013] Furthermore, an annular shield is also included; an annular shield for reducing airflow disturbance is fixedly connected to the inside of each cover; each annular shield is located between the corresponding air outlet slot and the impeller.

[0014] Furthermore, the outer side of each annular shield is arranged to be inclined toward the air inlet.

[0015] Beneficial Effects: The present invention achieves the goal of lowering the temperature inside the storage box by mixing the carbonamide stored inside the storage box with water. The storage box directly contacts the casing, transferring the low temperature to the casing, achieving continuous heat dissipation, and then urgently cooling the casing, effectively preventing damage to the rotor and other key components due to abnormally high temperatures, and significantly improving the thermal protection performance and safety and reliability of the motor under extremely high temperature or overload conditions.

[0016] By switching the airflow path, the exhaust airflow is used to reversely sweep away impurities on the air inlet filter, avoiding the loss of air intake efficiency caused by blockage, thereby maintaining the heat dissipation efficiency of the motor;

[0017] The guide plate diverts part of the airflow to the interlayer, allowing the airflow to fully contact the heat sink fins and remove the absorbed heat, thereby simultaneously improving the heat absorption efficiency of the heat sink fins to the interior of the case and the overall utilization of the airflow.

[0018] By setting an annular shield between the air outlet slot and the impeller, the airflow blown out of the air outlet slot is separated from the impeller, reducing the disturbance of the impeller on the airflow and ensuring the impact force of the airflow when it is discharged from the air inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the motor capable of emergency cooling according to the present invention;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the combination of the engine cover, rotor, heat dissipation assembly, protective cover and annular shield of the present invention;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the cover, rotor, storage box and heat dissipation assembly of the present invention;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the housing, storage box and heat conducting plate combination of the present invention;

[0023] Figure 5 A cross-sectional view of the storage box and heat conducting plate assembly of the present invention;

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the housing, cover, heat dissipation assembly, guide plate and annular shield assembly of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the combination of the machine cover, heat dissipation assembly, protective cover and annular shield of the present invention.

[0026] The reference numbers in the figure are: 1- housing, 1001- interlayer, 1002- rotating plate, 2- machine cover, 2001- air inlet, 2002- air outlet, 2003- air outlet, 3- rotor, 4- storage box, 4001- water storage chamber, 4002- material storage chamber, 4003- cover plate, 4004- air valve, 5- heat conduction plate, 5001- bimetallic strip, 101- impeller, 102- annular sealing plate, 103- electromagnet 1, 104- electromagnet 2, 201- guide plate, 301- protective cover, 401- annular baffle. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1: Figure 1-Figure 7 As shown, a motor capable of emergency cooling includes a housing 1, a cover 2, and a rotor 3; the housing 1 is provided with two symmetrically arranged covers 2; the housing 1 is internally rotatably connected to the rotor 3; the front end of the rotor 3 passes through the cover 2 located at the front side; the housing 1 is provided with a plurality of heat dissipation fins;

[0029] It also includes a storage box 4, a heat conduction plate 5 and a heat dissipation component; an interlayer 1001 is provided on the casing 1; two symmetrically arranged storage boxes 4 are connected in the interlayer 1001 by bolts; the storage boxes 4 are made of heat-conducting metal; each storage box 4 is detachably connected to a heat conduction plate 5; the heat conduction plate 5 divides the interior of the storage box 4 into a water storage chamber 4001 and a material storage chamber 4002; each storage box 4 is detachably connected to a cover plate 4003; each heat conduction plate 5 is provided with a bimetallic strip 5001; the cross-section of the bimetallic strip 5001 is serrated; a heat dissipation component is provided on the cover 2.

[0030] The heat dissipation assembly includes an impeller 101, an annular sealing plate 102, an electromagnet 103 and an electromagnet 2 104; two symmetrically arranged impellers 101 are fixed to the rotor 3; each cover 2 is provided with a number of air inlets 2001; each air inlet 2001 is provided with a filter; each cover 2 is provided with a number of air outlets 2002 in an annular array; the interior of the cover 2 is connected with the casing 1 and the interior of the interlayer 1001 through the air outlet 2002; each cover 2 is provided with an air outlet groove 2003; each cover 2 is rotatably connected to an annular sealing plate 102 through a torsion spring; the annular sealing plate 102 consists of a number of sealing plates and a fixed ring; each annular sealing plate 102 is fixed with an electromagnet 103; each cover 2 is fixed with an electromagnet 2 104; electromagnet 1 103 and electromagnet 2 104 generate magnetic attraction to each other when power is applied.

[0031] The housing 1 is rotatably connected to two symmetrically arranged rotating plates 1002; each storage box 4 is located between the rotating plate 1002 and the housing 1, which ensures the protection of the storage box 4 while facilitating the disassembly and assembly of the storage box 4.

[0032] Each water storage cavity 4001 is located on the upper side of the corresponding material storage cavity 4002 , which is conducive to allowing the water inside the water storage cavity 4001 to quickly flow into the material storage cavity 4002 when emergency cooling is performed.

[0033] An air valve 4004 is provided on each cover plate 4003; each air valve 4004 is connected to the interior of the storage chamber 4002; the interior of the storage chamber 4002 is normally in a negative pressure state, which is conducive to quickly pumping the water inside the water storage chamber 4001 into the storage chamber 4002 for reaction during the subsequent reaction with water, thereby improving the emergency heat dissipation efficiency.

[0034] It also includes a guide plate 201 ; two symmetrically arranged guide plates 201 are fixed to the casing 1 ; each guide plate 201 is located between the gas outlet 2002 and the casing 1 , and the side walls of the guide plates 201 are inclined toward the interlayer 1001 .

[0035] Each air inlet 2001 is arranged on the upper side of the machine cover 2, which helps to reduce the impurities on the ground from being sucked in, adhering to and clogging the filter on the air inlet 2001.

[0036] It also includes a protective cover 301 ; a protective cover 301 is fixedly connected to the upper side of each cover 2 ; the protective cover 301 is located above the air inlet 2001 .

[0037] In the initial state, the electromagnet 1 103 and the electromagnet 2 104 on the rear side are energized to generate magnetic attraction, driving the annular sealing plate 102 on the rear side to rotate until the air inlet 2002 on the rear cover 2 is completely closed, and at the same time, the torsion spring on the annular sealing plate 102 on the rear side is compressed. When the motor enters the normal working heat dissipation stage, the temperature inside the casing 1 is transferred to the outside through the heat dissipation fins on the casing 1 to dissipate heat for the motor. At the same time, the rotor 3 drives the front impeller 101 to rotate inside the cover 2, so that the external air is sucked into the interior of the front cover 2 through the air inlet 2001 with the filter. At this time, the filter effectively intercepts impurities in the air, ensuring that clean airflow enters the motor. The introduced airflow enters the interior of the casing 1 through the front air inlet 2002, fully contacts the rotor 3 and takes away the heat generated during its operation. At the same time, since the rear air inlet 2002 is continuously in a closed state of the annular sealing plate 102, the rear impeller 101 cannot draw in external air. Finally, the airflow that completes the heat exchange is introduced into the interior of the rear cover 2 from the air outlet groove 2003 of the rear cover 2, and is discharged to the external environment through the rear air inlet 2001, thereby forming a complete heat dissipation path.

[0038] When the airflow enters the interior of the casing 1 through the air inlet 2002, the guide plate 201 diverts part of the airflow to the interlayer 1001, allowing the airflow to fully contact the heat sink fins and take away the heat absorbed by them, thereby simultaneously improving the heat absorption efficiency of the heat sink fins inside the casing 1 and the overall utilization effect of the airflow.

[0039] It is also considered that when the temperature inside the casing 1 rises due to abnormal overheating of the motor, the impeller 101 on the existing motor cannot meet the heat dissipation demand of the motor, resulting in damage to the rotor 3 and other key components due to abnormal high temperature. Therefore, when the temperature inside the casing 1 rises abnormally, the high temperature is quickly transferred to the inside of the storage box 4 through the heat conducting plate 5, causing the bimetallic strip 5001 to be heated. Since the bimetallic strip 5001 is arranged in a serrated shape, the bimetallic strip 5001 bends and deforms due to the difference in thermal expansion coefficients of the two metals when heated, resulting in the bimetallic strip 5001 being bent and deformed as a whole in length. The bimetallic strip 5001 and the heat conducting plate 5 are linearly displaced in the direction of the angle, so that a gap is formed between the bimetallic strip 5001 and the heat conducting plate 5. Since the storage chamber 4002 maintains a negative pressure state in advance, the moment the gap is formed between the bimetallic strip 5001 and the heat conducting plate 5, the negative pressure immediately draws the water in the water storage chamber 4001 into the storage chamber 4002, accelerating the mixing reaction process of water and carbonamide, thereby improving the emergency heat dissipation response speed. When the water in the water storage chamber 4001 and the carbonamide in the storage chamber 4002 are quickly mixed, the endothermic dissolution reaction occurs simultaneously, causing the temperature inside the storage box 4 to rise sharply in a short period of time. The temperature drops by about twelve degrees. The low temperature state of the storage box 4 forms a continuous heat exchange through direct contact with the casing 1, thereby urgently cooling the casing 1, effectively preventing the rotor 3 and other key components from being damaged due to abnormally high temperatures, and significantly improving the thermal protection performance and safety reliability of the motor under extreme high temperature or overload conditions. After the work is completed, the staff will open the rotating plate 1002 and remove the bolts on the storage box 4. The storage box 4 and the heat conducting plate 5 can be easily removed from the casing 1, and then the heat conducting plate 5 can be removed from the storage box 4. Through cooling and manual assistance The stretched bimetallic strip 5001 is reset on the heat conducting plate 5, and then the heat conducting plate 5 is reinserted into the storage box 4, and the cover 4003 is opened to replenish the water storage chamber 4001 and the material storage chamber 4002 with raw materials. After the cover 4003 is closed on the storage box 4 and sealed, the external vacuum pipe is inserted into the material storage chamber 4002 through the air valve 4004, and the material storage chamber 4002 is sucked to a negative pressure state to ensure the reaction efficiency between the raw materials during the next emergency heat dissipation. Finally, the storage box 4 is tightened and fixed to the casing 1 by bolts to realize the reuse of the system.

[0040] When the airflow enters the motor from the front air inlet 2001 and cools the motor for thirty minutes, the front electromagnet 103 and the electromagnet 2 104 are energized by timing control, driving the annular sealing plate 102 to rotate and close the air delivery port 2002 of the front cover 2. At the same time, the rear electromagnet 103 and the electromagnet 2 104 are de-energized, and the rear annular sealing plate 102 rotates and resets under the action of the torsion spring, releasing the blockage of the air delivery port 2002 of the rear cover 2. As the rear impeller 101 rotates with the rotor 3 in the rear cover 2, the external airflow passes through the air inlet 2 with the filter. 001 sucks in the rear cover 2 and enters the interior of the casing 1 through the rear air inlet 2002, fully contacts the rotor 3 and takes away its heat. Since the front air inlet 2002 is closed, the front impeller 101 cannot inhale air, and the heated air flow is introduced into the interior of the front cover 2 from the air outlet slot 2003 of the front cover 2, and then discharged in the opposite direction through the front air inlet 2001. This design switches the airflow path and uses the heat-dissipating airflow to reversely sweep the impurities on the filter screen of the air inlet 2001, avoiding the attenuation of the air intake efficiency caused by blockage, thereby maintaining the heat dissipation efficiency of the motor.

[0041] When the motor is working outdoors, a protective cover 301 is set on the upper side of the air inlet 2001 to prevent external impurities such as leaves from falling onto the air inlet 2001, thereby preventing the air inlet 2001 from being blocked by impurities, ensuring that the air inlet 2001 always remains unobstructed, and ensuring the normal heat dissipation effect of the motor.

[0042] Example 2: Based on Example 1, Figure 2-Figure 4 、 Figure 6 and Figure 7 As shown, an annular shield 401 is also included; an annular shield 401 is fixedly connected to the inside of each cover 2; each annular shield 401 is located between the corresponding air outlet groove 2003 and the impeller 101.

[0043] The outer side of each annular shield 401 is arranged to be inclined toward the air inlet 2001, which is conducive to guiding the airflow blown out of the air outlet slot 2003 to directly impact the filter on the air inlet 2001, thereby enhancing the reverse blowing and cleaning effect of the filter.

[0044] It is also taken into consideration that when the heat dissipation airflow passes through the air outlet slot 2003 and is discharged from the air inlet 2001 to the outside, the heat dissipation airflow is easily disturbed by the impeller 101 on the side of the closed air supply port 2002, resulting in the dissipation of the kinetic energy of the exhaust airflow, which reduces the impact force of the airflow when it is discharged from the air inlet 2001, thereby reducing the reverse blowing and cleaning effect on the filter on the air inlet 2001. Therefore, an annular baffle 401 is provided between the air outlet slot 2003 and the impeller 101 to separate the airflow blown out of the air outlet slot 2003 from the impeller 101, reduce the disturbance of the airflow by the impeller 101, and ensure the impact force of the airflow when it is discharged from the air inlet 2001. At the same time, the airflow blown out of the air outlet slot 2003 is guided toward the filter on the air inlet 2001 through the annular baffle 401, thereby enhancing the reverse blowing and cleaning effect of the airflow on the filter.

[0045] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A motor capable of emergency cooling, comprising a housing (1), a cover (2), and a rotor (3); two covers (2) are provided on the housing (1); a rotor (3) is rotatably connected inside the housing (1); a front end of the rotor (3) passes through the cover (2) located at the front side; a plurality of heat dissipation fins are provided on the housing (1); and the motor is characterized by: The invention also includes a storage box (4), a heat conducting plate (5) and a heat dissipation component; a sandwich layer (1001) is provided on the casing (1); a plurality of storage boxes (4) are connected to the sandwich layer (1001); the storage boxes (4) are made of heat-conducting metal; each storage box (4) is connected to a heat conducting plate (5); the heat conducting plate (5) divides the interior of the storage box (4) into a water storage chamber (4001) and a material storage chamber (4002); each storage box (4) is connected to a cover plate (4003); each heat conducting plate (5) is provided with a bimetallic strip (5001); the cross section of the bimetallic strip (5001) is serrated; a heat dissipation component for dissipating heat from the motor is provided on the cover (2); The heat dissipation component includes an impeller (101), an annular sealing plate (102), an electromagnet 1 (103) and an electromagnet 2 (104); two impellers (101) for dissipating heat for the motor are fixedly connected to the rotor (3); a plurality of air inlets (2001) are provided on each cover (2); a filter screen for intercepting impurities is provided on each air inlet (2001); a plurality of air delivery ports (2002) are provided on each cover (2); the interior of the cover (2) is connected to the housing (1) and the interlayer (1002) through the air delivery ports (2002). 01) are internally connected; an air outlet groove (2003) is provided on each cover (2); an annular sealing plate (102) for sealing the air outlet (2002) is rotatably connected to each cover (2); the annular sealing plate (102) is composed of a plurality of sealing plates and a fixed ring; an electromagnet 1 (103) is fixedly connected to each annular sealing plate (102); an electromagnet 2 (104) is fixedly connected to each cover (2); the electromagnet 1 (103) and the electromagnet 2 (104) generate magnetic attraction to each other when power is supplied.

2. The motor capable of emergency cooling according to claim 1, characterized in that: Two rotating plates (1002) are rotatably connected to the housing (1); each storage box (4) is located between the rotating plate (1002) and the housing (1).

3. The motor capable of emergency cooling according to claim 1, characterized in that: Each water storage cavity (4001) is located on the upper side of the corresponding material storage cavity (4002).

4. The motor capable of emergency cooling according to claim 3, characterized in that: Each cover plate (4003) is provided with an air valve (4004); each air valve (4004) is in communication with the interior of the storage cavity (4002); and the interior of the storage cavity (4002) is normally maintained at a negative pressure.

5. The motor capable of emergency cooling according to claim 2, characterized in that: It also includes a guide plate (201); two guide plates (201) for guiding airflow are fixedly connected to the casing (1); each guide plate (201) is located between the air delivery port (2002) and the casing (1), and the side wall of the guide plate (201) is inclined toward the interlayer (1001).

6. The motor capable of emergency cooling according to claim 1, characterized in that: Each air inlet (2001) is arranged on the upper side of the machine cover (2).

7. The motor capable of emergency cooling according to claim 6, characterized in that: It also includes a protective cover (301); a protective cover (301) for blocking impurities is fixedly connected to the upper side of each cover (2); the protective cover (301) is located on the upper side of the air inlet (2001).

8. The motor capable of emergency cooling according to claim 7, characterized in that: It also includes an annular shield (401); each cover (2) is fixedly connected to an annular shield (401) for reducing airflow disturbance; each annular shield (401) is located between the corresponding air outlet groove (2003) and the impeller (101).

9. The motor capable of emergency cooling according to claim 8, characterized in that: The outer side of each annular shield (401) is arranged to be inclined toward the air inlet (2001).

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