An outdoor emergency generator

Abstract

The present invention relates to the technical field of generators, and discloses an outdoor emergency generator, including a stator assembly, a rotor assembly and a cooling assembly; the stator assembly is provided with an air duct, the extension direction of the air duct is the same as the extension direction of the stator assembly, and runs through the stator assembly, the ends of the air duct are embedded with support members, and the support members are provided with air outlets; the air outlet of one support member is used for air intake, and the air outlet of the other support member is used for air outlet; the rotor assembly is arranged in the air duct, the two ends of the rotor assembly are respectively rotatably connected to two support members, and the rotor assembly and the air outlet are staggered; the cooling assembly includes a coolant pipe with coolant flowing. The outdoor emergency generator improves the heat dissipation effect in a limited space, can meet the high heat dissipation requirements in the summer environment or the scorching sun environment with high heat dissipation requirements outdoors, and effectively maintains the best working state of the stator assembly.

Description

Technical Field

[0001] The invention relates to the technical field of generators, and in particular to an outdoor emergency generator. Background Art

[0002] So far, the technology of generators has become mature, among which the cooling of the generator is one of the important factors to increase the life of the generator. The cooling of the generator mainly includes the cooling of the rotor and the stator. The temperature rise of the stator will produce thermal stress and accelerate the aging rate of the stator and the rotor, thereby affecting the service life of the stator and the rotor. At present, there are many ways to cool the generator, such as: air cooling, water cooling, oil cooling, or a combination of water cooling and air cooling. Emergency generators need to be moved to the use scene when in use, such as outdoors or indoors. When the generator is used outdoors in summer, the heat dissipation of the stator and the rotor of the generator is further challenged.

[0003] At present, most generators use a cooling method that combines water cooling and air cooling for the heat dissipation of the stator and rotor. Water cooling is assisted by air cooling to meet outdoor use with high heat dissipation requirements. However, in summer or in summer under the scorching sun, only the coolant in the water-cooling tube combined with air cooling is not enough to overcome the rapid heating of the stator. The coolant in the water-cooling tube will heat up along with the rapid heating of the stator, which greatly reduces the heat dissipation efficiency. In particular, when the stator heats up rapidly, the temperature of the stator cannot be quickly absorbed. If high-efficiency coolant is used for heat dissipation at the beginning (for example, a coolant with a lower temperature or a liquid circulating in a refrigerator), it is easy to over-cool and affect the temperature stability of the stator, thereby affecting the working efficiency of the generator. Only using coolant in combination with air cooling for heat dissipation has a poor heat dissipation effect in a limited space and cannot meet the high heat dissipation requirements in the summer environment or in the scorching sun environment with high heat dissipation requirements outdoors. Summary of the invention

[0004] The purpose of the present invention is to provide an outdoor emergency generator, which improves the heat dissipation effect in a limited space, can meet the high heat dissipation requirements in the summer environment or the scorching sun environment with high heat dissipation requirements outdoors, and effectively maintain the optimal working state of the stator assembly.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] Design an outdoor emergency generator, including a stator assembly, a rotor assembly and a cooling assembly;

[0007] The stator assembly is provided with an air duct, the extension direction of the air duct is the same as the extension direction of the stator assembly and passes through the stator assembly, the ends of the air duct are embedded with support members, and the support members are provided with air outlets; the air outlet of one support member is used for air intake, and the air outlet of the other support member is used for air outlet;

[0008] The rotor assembly is arranged in the air duct, the two ends of the rotor assembly are rotatably connected to two support members respectively, and the rotor assembly and the air outlet are staggered;

[0009] The cooling component includes a coolant pipe with coolant flowing therein, and the coolant pipe is spirally attached to the stator component; a plurality of phase change balls are evenly distributed in the coolant, and a plurality of the phase change balls are built with phase change materials for absorbing heat.

[0010] Optionally, the phase change material built into the phase change ball is a high melting point phase change material, which is used to undergo phase change at a temperature of 100 degrees to 120 degrees to absorb a large amount of heat. Several of the phase change balls are evenly distributed in the coolant and located in the coolant pipeline.

[0011] Optionally, the phase change material built into the phase change ball is a low-melting-point phase change material, which is used to undergo phase change at a temperature of 50 degrees to 80 degrees to absorb a large amount of heat. Several of the phase change balls are evenly distributed in the coolant and located in the coolant pipeline.

[0012] Optionally, at least part of the phase change material built into the phase change ball is a high melting point phase change material, which is used to undergo phase change at a temperature of 100 degrees to 120 degrees and absorb a large amount of heat; the rest of the phase change material built into the phase change ball is a low melting point phase change material, which is used to undergo phase change at a temperature of 50 degrees to 80 degrees and absorb a large amount of heat.

[0013] Optionally, the phase change ball is provided with a first accommodating cavity and a second accommodating cavity, the first accommodating cavity and the second accommodating cavity are separated by a partition, the first accommodating cavity is used to accommodate a high melting point phase change material, and the second accommodating cavity is used to accommodate a low melting point phase change material.

[0014] Optionally, the cooling assembly further comprises a circulation pump disposed on one side of the stator assembly, an input end of the circulation pump being connected to one end of a coolant pipe via a pipe, and an output end of the circulation pump being connected to the other end of the coolant pipe via a pipe.

[0015] Optionally, the stator assembly includes a stator shell, a stator core member and a fan plate, the air duct is opened in the stator core member, the two support members are respectively fixedly connected to the two ends of the stator core member, the stator shell is arranged in a hollow shell structure, the stator core member is arranged in the stator shell and is spaced from the inner ring of the stator shell, the fan plate is installed at one end of the stator shell, the coolant pipe is spirally attached to the outer surface of the stator core member, and a plurality of air flow openings are opened in the circumferential direction at one end of the stator shell away from the fan plate.

[0016] Optionally, a plurality of heat sinks are fixedly connected to the outer surface of the stator housing, an extension direction of the plurality of heat sinks is the same as an extension direction of the stator housing, the plurality of heat sinks are evenly distributed along the circumference of the stator housing, and the plurality of heat sinks are at least partially located in the stator housing and connected to a coolant pipe.

[0017] Optionally, it also includes a supporting base, which includes a mobile chassis and a driving member. The stator housing is detachably connected to the mobile chassis, the driving member is arranged on the mobile chassis and the output end is located in the stator housing, and the output end of the driving member is connected to one end of the rotor assembly for driving the rotor assembly to rotate.

[0018] Optionally, a protective shell is detachably connected to the mobile chassis, a side of the protective shell is provided with an escape opening, and a cover plate is slidably connected to the side of the protective shell, and the cover plate is used to cover the escape opening.

[0019] The present invention provides an outdoor emergency generator, which has the following beneficial effects:

[0020] The outdoor emergency generator supports the rotor assembly through a support member, and the rotor assembly rotates in the air duct of the stator assembly to generate electricity. The air outlets on the support member cooperate with the air duct to form an air flow channel in the stator assembly to dissipate heat for the stator assembly. The coolant introduced into the coolant pipe spirally attached to the stator assembly is used to assist the air flow channel in dissipating heat in the summer environment or hot sun environment with high heat dissipation requirements outdoors, avoiding safety hazards caused by rapid heating of the stator assembly, and also avoiding the stability of the stator assembly and the rotor assembly cooperating to generate electricity due to the rapid heating of the stator assembly. Phase change balls with built-in phase change material are distributed in the coolant, so that the phase change material can absorb more heat and cooperate with the coolant to achieve better heat dissipation effect in a limited space, thereby improving the heat dissipation efficiency. Thermal efficiency, and the temperature remains constant during the phase change process, which helps to maintain a stable operating temperature of the generator. The phase change material starts the phase change process only when the temperature reaches the phase change point, avoiding the coolant temperature from continuing to rise as the heat is absorbed or failing to absorb the sudden increase in heat of the stator assembly in time. The stator assembly often undergoes drastic thermal changes, especially when used outdoors in summer. The phase change material can quickly absorb heat fluctuations in the coolant and prevent drastic temperature fluctuations of the stator assembly, which plays a protective role in temperature control and further avoids the safety hazards caused by the rapid heating of the stator assembly. The phase change material can provide temperature stability, which can effectively maintain the optimal working state of the stator assembly. The temperature stability can also significantly reduce thermal stress and extend the service life of the stator assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the explosion structure of the outdoor emergency generator in the present invention;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the outdoor emergency generator in the present invention;

[0023] Figure 3 It is a schematic diagram of the exploded structure of the stator assembly in the present invention;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the stator assembly in the present invention;

[0025] Figure 5 It is a cross-sectional structural schematic diagram of the stator assembly in the present invention;

[0026] Figure 6 For the present invention Figure 3 A local enlarged structural schematic diagram;

[0027] Figure 7 For the present invention Figure 5 Schematic diagram of the local enlarged structure at point B.

[0028] In the figure: 1. stator assembly; 11. air duct; 12. support member; 13. stator housing; 14. stator core member; 15. fan plate; 16. air flow port; 17. heat sink; 2. rotor assembly; 3. cooling assembly; 31. coolant pipeline; 32. phase change ball; 321. first accommodating chamber; 322. second accommodating chamber; 323. partition; 33. circulating pump; 4. support base; 41. mobile chassis; 42. drive member; 43. protective shell; 44. cover plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field without making creative work based on the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0030] See also Figures 1 to 7 , the present invention provides a technical solution: an outdoor emergency generator, comprising a stator assembly 1, a rotor assembly 2 and a cooling assembly 3;

[0031] The stator assembly 1 is provided with an air duct 11, the extension direction of the air duct 11 is the same as the extension direction of the stator assembly 1, and the air duct 11 passes through the stator assembly 1. Support members 12 are embedded at the ends of the air duct 11, and air outlets are provided on the support members 12; the air outlet of one support member 12 is used for air intake, and the air outlet of the other support member 12 is used for air outlet;

[0032] The rotor assembly 2 is arranged in the air duct 11, and the two ends of the rotor assembly 2 are rotatably connected to the two support members 12 respectively, and the rotor assembly 2 is staggered with the air outlet;

[0033] The cooling assembly 3 includes a coolant pipe 31 in which a coolant flows, and the coolant pipe 31 is spirally attached to the stator assembly 1; a plurality of phase change balls 32 are evenly distributed in the coolant, and a plurality of phase change balls 32 have a phase change material built therein for absorbing heat;

[0034] The stator assembly 1 is a fixed part, generating a magnetic field and generating electromagnetic induction with the rotor assembly 2. The air duct 11 is opened in the stator assembly 1 for air circulation and heat dissipation. The opening direction of the air duct 11 is consistent with that of the stator assembly 1, ensuring the air flow in the entire stator assembly 1. The air duct 11 runs through the stator assembly 1, making the cooling effect more uniform. The support 12 is embedded at both ends of the air duct 11 to provide support for the rotor assembly 2. At the same time, air outlets are opened. The two air outlets are used for air inlet and outlet, respectively, to ensure the air circulation in the air duct 11 and take away the heat generated by the stator and the rotor. The support 12 not only supports the rotor assembly 2, but also guides the air flow through the air outlet, so that the stator assembly 1 and the rotor assembly 2 are effectively cooled. The rotor assembly 2 is located in the air duct 11 and is rotatably connected to the support 12. It is the moving part of the generator. It generates electromagnetic induction with the stator assembly 1 through rotation to generate electrical energy. The two ends of the rotor assembly 2 are rotatably connected to the support 12 to ensure its stable operation in the air duct 11. It is staggered with the air outlet to avoid shielding the air outlet and affecting the inlet and outlet, ensuring that the air flows through the stator and rotor surfaces for heat dissipation. The coolant pipe 31 is a pipe with coolant flowing, which is It is attached to the stator assembly 1 in a spiral shape, which effectively increases the heat dissipation area. The phase change ball 32 has a built-in phase change material and is evenly distributed in the coolant. When the coolant temperature rises, it absorbs heat and undergoes phase change, thereby improving the cooling effect. The coolant pipe 31 is attached to the stator assembly 1, and directly absorbs the heat generated by the stator assembly 1. The phase change ball 32 is evenly distributed in the coolant, and absorbs heat through phase change, thereby further improving the cooling efficiency. The phase change material can absorb more heat, and cooperate with the coolant to achieve a better heat dissipation effect in a limited space, thereby improving the heat dissipation efficiency. The temperature remains constant during the phase change process, which helps to maintain a stable operating temperature of the generator. The phase change material has good chemical stability, and can be used for a long time without significant performance degradation. It can be reused in multiple thermal cycles, and can achieve more efficient thermal management in a smaller space. The combination of air flow and coolant, especially the application of the phase change ball 32, can greatly improve the heat dissipation efficiency, and avoid the influence of high temperature on the performance of the stator assembly 1 and the rotor assembly 2.

[0035] The spiral flow channel of the coolant pipe 31 can be used to keep the phase change ball 32 suspended and evenly distributed in the coolant, so as to prevent the phase change ball 32 from sinking to the bottom of the coolant pipe 31 extending in a straight line and being unable to circulate with the coolant. At the same time, the spiral flow channel of the coolant pipe 31 can increase the contact area between the coolant and the stator assembly 1, improve the utilization rate of the coolant, reduce the waste of the coolant, and enable the heat to be more effectively transferred from the stator assembly 1 to the coolant, thereby improving the overall heat dissipation efficiency. The spiral design enables the coolant to absorb heat more evenly when flowing through the entire stator assembly 1, reduce local overheating, ensure the uniformity of temperature distribution, improve the performance and life of the stator assembly 1, and keep the temperature of the stator assembly 1 stable. The uniform temperature distribution and more efficient heat dissipation can reduce the thermal stress inside the stator assembly 1 and reduce the uneven expansion of the material caused by the temperature difference, thereby improving the reliability of the stator assembly 1. The spiral flow channel can increase the turbulence of the coolant, and the liquid heat transfer performance in the turbulent state is better, which can further improve the cooling effect.

[0036] The material of the phase change ball 32 is polyurethane or polyetheretherketone or polyimide, and the corresponding coolant is a synthetic oil or a water-based coolant, such as an ethylene glycol aqueous solution. A polymer with a density of about 1.1-1.2 g / cm³, such as polyurethane, is used in combination with an ethylene glycol aqueous solution with a density of 1.05 g / cm³, and the surface of the phase change ball 32 is treated hydrophilically or hydrophobically to increase its dispersibility in the coolant. A small amount of heat-conductive nanoparticles can also be added to the coolant to increase the viscosity and thermal conductivity of the cooling liquid and help the phase change ball 32 to suspend, for example, by adding aluminum oxide or carbon nanotubes;

[0037] The rotor assembly 2 is composed of a rotor core, a rotor winding and a rotor shaft. The rotor core is made of stacked silicon steel sheets to form a cylindrical structure. The rotor winding is a coil made of a conductive material (such as copper or aluminum) and is wound on the rotor core. The rotor shaft passes through the central axis of the rotor core and is used to be rotatably connected to the support 12.

[0038] A bearing is provided on the support member 12, and the support member 12 is rotatably connected to the end of the rotor assembly 2 (that is, rotatably connected to the end of the rotor shaft) through the bearing, thereby reducing friction, increasing the service life of the support member 12 and the rotor assembly 2, and making the rotor assembly 2 rotate more smoothly;

[0039] The air vents provided on the support member 12 can further effectively dissipate heat for the bearing, reduce the thermal stress caused by the bearing heating up during use, avoid affecting the service life of the bearing due to the thermal stress, and effectively increase the service life of the bearing.

[0040] In this embodiment, as a preferred solution, the phase change material built into the phase change ball 32 is a high melting point phase change material, which is used to undergo phase change and absorb a large amount of heat at a temperature of 100 degrees to 120 degrees. A number of phase change balls 32 are evenly distributed in the coolant and located in the coolant pipe 31. The phase change material is a high melting point material, such as paraffin, fatty acids or inorganic salts. When the temperature conducted by the coolant reaches the melting point, the phase change material absorbs a large amount of heat and undergoes a phase change, that is, from a solid state to a liquid state, which plays a role in buffering the temperature increase. Preferably, it is paraffin, specifically a long-chain alkane, with a melting point of about 105 degrees, that is, 105 degrees Celsius, and its latent heat of thermal melting is high.

[0041] In this embodiment, as a preferred solution, the phase change material built into the phase change ball 32 is a low melting point phase change material, which is used to undergo phase change and absorb a large amount of heat at a temperature of 50 degrees to 80 degrees. A number of phase change balls 32 are evenly distributed in the coolant and located in the coolant pipe 31. The phase change material is a low melting point material, paraffin, fatty acid, low melting point metal alloy. The phase change material absorbs a large amount of heat and undergoes phase change, that is, from solid to liquid, which plays a role in buffering the temperature increase. It is preferably paraffin, specifically short-chain alkane, with a melting point of about 60 degrees, that is, 60 degrees Celsius.

[0042] In this embodiment, as a preferred solution, at least part of the built-in phase change material of the phase change ball 32 is a high melting point phase change material, which is used to undergo phase change and absorb a large amount of heat at a temperature of 100 degrees to 120 degrees, and the built-in phase change material of the remaining part of the phase change ball 32 is a low melting point phase change material, which is used to undergo phase change and absorb a large amount of heat at a temperature of 50 degrees to 80 degrees;

[0043] The phase change latent heat capacity of using a single material is limited, which restricts the heat storage density. The composite phase change ball 32 can store more heat in the same volume by utilizing the phase change latent heat of materials with different melting points. The phase change ball 32 provides continuous thermal management at different temperature stages to avoid thermal stress or thermal damage to the system when the temperature changes rapidly, and increase the temperature range of temperature absorption. The phase change ball 32 can provide the function of absorbing heat in a wider temperature range.

[0044] In this embodiment, as a preferred solution, the phase change ball 32 is provided with a first accommodating cavity 321 and a second accommodating cavity 322, the first accommodating cavity 321 and the second accommodating cavity 322 are separated by a partition 323, the first accommodating cavity 321 is used to accommodate a phase change material with a high melting point, and the second accommodating cavity 322 is used to accommodate a phase change material with a low melting point;

[0045] When the temperature of the coolant reaches the melting point of the low-melting-point phase change material, the low-melting-point phase change material in the second accommodating chamber 322 melts first, absorbing the heat in the low-temperature environment of the system to prevent the temperature from rising rapidly. When the temperature continues to rise, the high-melting-point phase change material in the first accommodating chamber 321 begins to melt, absorbing a large amount of high-temperature heat, thereby further delaying the temperature rise and protecting the stator assembly 1 and the rotor assembly 2.

[0046] In this embodiment, as a preferred solution, the cooling assembly 3 further includes a circulation pump 33 disposed on one side of the stator assembly 1, the input end of the circulation pump 33 is connected to one end of the coolant pipe 31 through a pipe, and the output end of the circulation pump 33 is connected to the other end of the coolant pipe 31 through a pipe;

[0047] The circulation pump 33 is specifically a vortex pump, which is a known technology. Its purpose is to cooperate with the spirally arranged coolant pipe 31. The vortex pump continuously stirs the coolant during the pumping process, so that the phase change balls 32 are evenly distributed in the coolant, and the coolant in the coolant pipe 31 circulates in the coolant pipe 31.

[0048] In this embodiment, as a preferred solution, the stator assembly 1 includes a stator housing 13, a stator core member 14 and a fan plate 15, the air duct 11 is opened in the stator core member 14, the two support members 12 are respectively fixedly connected to the two ends of the stator core member 14, the stator housing 13 is arranged in a hollow shell structure, the stator core member 14 is arranged in the stator housing 13 and is spaced from the inner ring of the stator housing 13, the fan plate 15 is installed at one end of the stator housing 13, the coolant pipe 31 is spirally attached to the outer surface of the stator core member 14, and the end of the stator housing 13 away from the fan plate 15 is circumferentially provided with a plurality of air flow openings 16;

[0049] The stator housing 13 provides a protective shell to prevent the external environment from invading the internal stator core 14, such as dust, moisture, etc. It provides mechanical support for the internal stator core 14 and keeps the entire stator assembly 1 structurally intact. The stator housing 13 is provided with a plurality of airflow openings 16 at one end away from the fan plate 15. These airflow openings 16 are conducive to air circulation, help heat dissipation, and allow gas to flow out of the stator housing 13. The stator core 14 is the core part of the stator assembly 1, and is usually composed of stacked silicon steel sheets to form the required electromagnetic field. The stator core 14 is a core part of the stator assembly 1. An air duct 11 is provided in 14, and the heat generated during operation can be effectively dissipated through ventilation. The main function of the fan plate 15 is to ventilate and guide air into the stator housing 13, and discharge hot air at the same time, thereby improving the heat dissipation efficiency. At the same time, the air enters the stator core member 14 through the air outlet on the support member 12. The two support members 12 are respectively fixed at both ends of the stator core member 14 to provide support, ensuring that the stator core member 14 is stable in the stator housing 13. The air outlets 16 are distributed along the circumference of the stator housing 13, which can promote air circulation and discharge hot air.

[0050] In this embodiment, as a preferred solution, a plurality of heat sinks 17 are fixedly connected to the outer surface of the stator housing 13, and the extension direction of the plurality of heat sinks 17 is the same as the extension direction of the stator housing 13. The plurality of heat sinks 17 are evenly distributed along the circumference of the stator housing 13. The plurality of heat sinks 17 are at least partially located in the stator housing 13 and connected to the coolant pipe 31. The heat sink 17 is made of a material with good thermal conductivity, such as aluminum or copper. The heat dissipation efficiency is improved by increasing the surface area of ​​the stator housing, which can ensure that the heat of the entire motor housing is evenly dissipated. The heat sink 17 is connected to the coolant pipe 31 through the coolant pipe 31, and the heat sink 17 takes away the heat from the flowing coolant, thereby further enhancing the heat dissipation effect. The heat sink 17 is connected to the spirally arranged coolant pipe 31, which effectively increases the contact area with the spirally arranged coolant pipe 31 and improves the heat conduction efficiency.

[0051] The phase change process starts only when the temperature reaches the phase change point through the phase change material, which provides a passive temperature control to avoid overcooling and affect the temperature stability of the stator.

[0052] In this embodiment, as a preferred solution, it also includes a support base 4, the support base 4 includes a mobile chassis 41 and a driving member 42, the stator housing 13 is detachably connected to the mobile chassis 41, the driving member 42 is arranged on the mobile chassis 41 and the output end is located in the stator housing 13, the output end of the driving member 42 is connected to one end of the rotor assembly 2, and is used to drive the rotor assembly 2 to rotate;

[0053] The driving member 42 can be a turbine or an internal combustion engine, which is used as a power source for the rotation of the rotor assembly 2. By setting the movable chassis 41, the stator assembly 1 and the rotor assembly 2 can be moved, which improves a certain convenience. This is an existing well-known technology and is only cited here.

[0054] In this embodiment, as a preferred solution, a protective shell 43 is detachably connected to the mobile chassis 41, a side of the protective shell 43 is provided with an escape opening, and a cover plate 44 is slidably connected to the side of the protective shell 43, and the cover plate 44 is used to cover the escape opening;

[0055] The protective shell 43 is used to protect the structure on the mobile chassis 41. The avoidance opening is provided to facilitate maintenance personnel to repair or replace the structure inside the protective shell 43. The cover plate 44 is used to shield the avoidance opening to play a protective role.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An outdoor emergency generator, characterized in that: It comprises a stator assembly (1), a rotor assembly (2) and a cooling assembly (3); The stator assembly (1) is provided with an air duct (11), the extension direction of the air duct (11) being the same as the extension direction of the stator assembly (1) and penetrating the stator assembly (1), the ends of the air duct (11) being embedded with support members (12), the support members (12) being provided with air outlets; the air outlet of one support member (12) being used for air intake, and the air outlet of the other support member (12) being used for air outlet; The rotor assembly (2) is arranged in the air duct (11), the two ends of the rotor assembly (2) are rotatably connected to two support members (12) respectively, and the rotor assembly (2) and the air outlet are arranged staggered; The cooling component (3) comprises a cooling liquid pipeline (31) in which cooling liquid flows, and the cooling liquid pipeline (31) is spirally attached to the stator component (1); a plurality of phase change balls (32) are evenly distributed in the cooling liquid, and a plurality of the phase change balls (32) are embedded with phase change materials for absorbing heat; The phase change material built into at least part of the phase change ball (32) is a high melting point phase change material, which is used to undergo phase change at a temperature of 100 to 120 degrees to absorb a large amount of heat; the phase change material built into the rest of the phase change ball (32) is a low melting point phase change material, which is used to undergo phase change at a temperature of 50 to 80 degrees to absorb a large amount of heat; The phase change ball (32) is provided with a first accommodating cavity (321) and a second accommodating cavity (322), the first accommodating cavity (321) and the second accommodating cavity (322) being separated by a partition portion (323), the first accommodating cavity (321) being used to accommodate a phase change material with a high melting point, and the second accommodating cavity (322) being used to accommodate a phase change material with a low melting point; The cooling assembly (3) further comprises a circulation pump (33) arranged on one side of the stator assembly (1), wherein an input end of the circulation pump (33) is connected to one end of the coolant pipeline (31) via a pipeline, and an output end of the circulation pump (33) is connected to the other end of the coolant pipeline (31) via a pipeline.

2. An outdoor emergency generator according to claim 1, characterized in that: The stator assembly (1) comprises a stator housing (13), a stator core member (14) and a fan plate (15); the air duct (11) is provided in the stator core member (14); the two support members (12) are respectively fixedly connected to the two ends of the stator core member (14); the stator housing (13) is provided in a hollow shell structure; the stator core member (14) is provided in the stator housing (13) and is spaced apart from the inner ring of the stator housing (13); the fan plate (15) is mounted on one end of the stator housing (13); the coolant pipe (31) is spirally attached to the outer surface of the stator core member (14); and a plurality of air flow openings (16) are provided along the circumferential direction at one end of the stator housing (13) away from the fan plate (15).

3. An outdoor emergency generator according to claim 2, characterized in that: A plurality of heat sinks (17) are fixedly connected to the outer surface of the stator housing (13); the extension direction of the plurality of heat sinks (17) is the same as the extension direction of the stator housing (13); the plurality of heat sinks (17) are evenly distributed along the circumference of the stator housing (13); and the plurality of heat sinks (17) are at least partially located inside the stator housing (13) and connected to the coolant pipe (31).

4. The outdoor emergency generator according to claim 2, characterized in that: The invention also comprises a support base (4), wherein the support base (4) comprises a movable chassis (41) and a driving member (42), wherein the stator housing (13) is detachably connected to the movable chassis (41), and the driving member (42) is arranged on the movable chassis (41) and an output end is located in the stator housing (13), and the output end of the driving member (42) is connected to one end of the rotor assembly (2) for driving the rotor assembly (2) to rotate.

5. An outdoor emergency generator according to claim 4, characterized in that: The mobile chassis (41) is detachably connected to a protective shell (43), a side of the protective shell (43) is provided with an escape opening, and a cover plate (44) is slidably connected to the side of the protective shell (43), and the cover plate (44) is used to cover the escape opening.

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