Heat dissipation structure of hybrid power unit and hybrid power unit

Abstract

The heat dissipation structure of the hybrid power unit comprises a base and a shell installed on the base, a water tank used for dissipating heat of a diesel power generation mechanism is arranged on the inner side of the shell, an exhaust hopper is further arranged on the outer side of the shell, the exhaust hopper comprises an air inlet end and an air outlet end, and the air inlet end and the air outlet end are communicated with each other. The air inlet end of the exhaust scoop is communicated with the water tank, a machine base is further arranged on the same side of the shell and the exhaust scoop, a water cooling unit used for cooling the power battery mechanism is arranged on the machine base, and the air exhaust end of the exhaust scoop deviates from the water cooling unit. The heat dissipation structure has the advantages of being good in heat dissipation effect, high in practicability and convenient to maintain.

Description

Technical Field

[0001] This utility model relates to the technical field of generators, and in particular to a heat dissipation structure for a hybrid power unit and a hybrid power unit. Background Technology

[0002] Hybrid power units are systems that combine multiple power generation methods, such as a battery power system and a diesel generator. The battery power system typically includes a battery pack, which in turn usually contains battery modules. This combination leverages the advantages of different power generation types, improving energy efficiency and operational flexibility, thus becoming an important power solution for modern industrial equipment such as tire-mounted cranes.

[0003] To facilitate heat dissipation and ensure stable operation of the hybrid power unit, engineers developed a related heat dissipation structure. This structure includes a hollow base, a housing mounted on the base, and the battery generator and diesel generator mounted on the base. Inside the base is a water-cooled unit for cooling the battery pack; specifically, the water-cooled unit is located at the bottom of the diesel generator and battery generator. A water tank for cooling the diesel generator is located on the housing. During operation, the water-cooled unit cools the battery generator, while the water tank cools the diesel generator.

[0004] However, since the hybrid power unit is usually installed on the saddle platform of the gantry crane, which is about 4.5 meters high, the location of the water-cooled unit restricts the ventilation of the water-cooled unit, affecting the heat dissipation effect of the water-cooled unit. The accumulation of hot air can easily damage the water-cooled unit and make it inconvenient to maintain the water-cooled unit. Utility Model Content

[0005] To address the problems of existing water-cooled units being easily damaged and inconvenient to maintain, this utility model provides a heat dissipation structure and hybrid power unit that have good heat dissipation effect, high practicality, and are easy to maintain.

[0006] The first objective of this utility model is to provide a heat dissipation structure for a hybrid power unit, which adopts the following technical solution:

[0007] A heat dissipation structure for a hybrid power unit includes a base and a housing mounted on the base. A water tank for cooling a diesel generator is disposed inside the housing. The structure is characterized by an exhaust duct on the outside of the housing, comprising an air inlet and an exhaust outlet. The air inlet of the exhaust duct is connected to the water tank. A base is disposed on the same side of the housing and the exhaust duct, and a water-cooled unit for cooling a battery pack is mounted on the base. The exhaust outlet of the exhaust duct is opposite to the water-cooled unit.

[0008] Through the above technical solution, during heat dissipation, the diesel generator is cooled by a water tank, and the heat is transferred to the water tank. The heat from the water tank is then discharged through the exhaust duct. Simultaneously, a water-cooled unit cools the battery pack. The water-cooled unit is located on the outside of the casing, ensuring smooth ventilation and preventing any impact on the unit's heat dissipation effect. Furthermore, the exhaust end of the exhaust duct faces away from the water-cooled unit, ensuring that the hot air discharged from the exhaust duct is directed away from the unit. This facilitates efficient space utilization and prevents the hot air from affecting the normal operation of the water-cooled unit, thus preventing hot air accumulation that could damage the unit and facilitating convenient maintenance.

[0009] Preferably, the exhaust end cover of the exhaust duct is equipped with an isolation net, and the isolation net is compatible with the exhaust end.

[0010] Through the above technical solution, the mesh structure of the isolation net can prevent foreign objects from entering the exhaust duct, thereby avoiding damage or blockage of internal components.

[0011] Preferably, the water-cooled unit includes an outlet for outputting cooling water and a return outlet for recovering hot water. The outlet is connected to an outlet pipe that extends into the housing. The outlet pipe is connected to a branch pipe, which includes an inlet end and an outlet end. The inlet end is connected to the outlet pipe, and the outlet end is connected to a heat dissipation component for cooling the inside of the battery pack.

[0012] The above technical solution reduces the need for piping by using a shunt pipe, and delivers cooling water to the heat dissipation components. The heat dissipation components then cool the inside of the battery pack one by one, allowing the battery pack to dissipate heat synchronously, which improves heat dissipation efficiency.

[0013] Preferably, the heat dissipation assembly includes a cooling water pipe connected to the water outlet, a heat-conducting component disposed within the battery pack, a heat exchange pipe passing through the heat-conducting component, and a hot water pipe with one end connected to the heat exchange pipe. The end of the cooling water pipe away from the distributor pipe extends into the battery pack. The heat-conducting component is used to mount the battery module. Both ends of the heat exchange pipe extend out of the heat-conducting component. One end of the heat exchange pipe is connected to the end of the cooling water pipe that extends into the battery pack. The other end of the heat exchange pipe is connected to the hot water pipe. A section of the heat exchange pipe located within the heat-conducting component (102) abuts against the heat-conducting component. The end of the hot water pipe away from the heat exchange pipe extends out of the battery pack.

[0014] Through the above technical solution, during heat dissipation, cooling water flows from the outlet of the distributor into the cooling water pipe and then from the cooling water pipe to the heat exchange pipe. The battery module exchanges heat with the heat-conducting components, allowing the heat generated by the battery module to be dissipated through the heat-conducting components. The cooling water in the heat exchange pipe exchanges heat with the heat-conducting components, thus carrying away the heat. By continuously supplying cooling water to the heat exchange pipe, the heat exchange pipe continuously exchanges heat with the heat-conducting components, and the heat-conducting components continuously exchange heat with the battery module, thereby dissipating heat from the battery module. This causes the cooling water to become hot water, which then flows out of the battery pack through the hot water pipe. This helps to avoid direct contact between the heat exchange pipe and the battery module, preventing leakage from the heat exchange pipe and preventing condensation inside the battery module due to the low temperature of the cooling water, thus preventing any impact on the battery module.

[0015] Preferably, the heat-conducting component has a mounting groove, the inner wall of the mounting groove is adapted to the battery module, the battery module is installed in the mounting groove, the mounting groove is opened according to the number of battery modules, and the battery modules are installed in the mounting groove one by one.

[0016] The above technical solution allows the inner wall of the mounting slot to abut against the battery module, which facilitates the transfer of heat from the battery module to the heat-conducting component. Multiple mounting slots increase the contact area between the battery module and the heat-conducting component, allowing the heat generated by multiple battery modules to be better transferred to the heat-conducting component.

[0017] Preferably, the heat exchange tube includes an inlet section, a heat exchange section, and an outlet section. The inlet section extends into the heat-conducting element from one end. The heat exchange section is wavy and surrounds multiple mounting slots. The outlet section extends out of the heat-conducting element.

[0018] The above technical solution increases the contact area between the heat exchange tube and the heat-conducting component through the heat exchange section, thereby improving the heat exchange efficiency.

[0019] Preferably, the return port of the water-cooled unit is connected to a return pipe, and the end of the return pipe away from the water-cooled unit is connected to a second branch pipe. The first end of the second branch pipe is connected to the return pipe, and the second end of the second branch pipe is connected to a manifold. The manifold includes a manifold end and a return end. The number of manifold ends is the same as the number of heat dissipation components, and the manifold ends are connected one-to-one to the hot water pipes in the heat dissipation components.

[0020] The above technical solution allows hot water flowing from the hot water pipe to flow from the manifold to the return pipe, and then through the water-cooled unit to cool the hot water again, which is beneficial for the recycling of water resources.

[0021] Preferably, the third end of the second diversion pipe is connected to a connecting pipe, an expansion tank is provided on one side of the exhaust hopper, and the side of the connecting pipe away from the second diversion pipe is connected to the expansion tank.

[0022] The above technical solution allows the expansion tank to absorb the expansion of water in the system caused by temperature changes, thereby maintaining the system pressure stability. In other words, the expansion tank plays a protective and regulatory role.

[0023] Preferably, the base is also provided with tie bars for fixing and guiding the outlet pipe and the diversion pipe, and both the outlet pipe and the diversion pipe pass through the tie bars.

[0024] The above technical solutions are used to fix and guide the water outlet pipe and the branch pipe, so as to ensure the stability of the pipeline and reduce the risk of leakage caused by pipeline movement or instability.

[0025] The second objective of this utility model is to provide a hybrid power unit, including the heat dissipation structure described in any one of the above-mentioned claims.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] During heat dissipation, the diesel generator is cooled by a water tank, and the heat is transferred to the water tank. The heat from the water tank is then discharged through the exhaust duct. Simultaneously, the battery pack is cooled by a water-cooled unit. The water-cooled unit is located on the outside of the casing, ensuring smooth ventilation and preventing any impact on the unit's cooling performance. Furthermore, the exhaust end of the exhaust duct faces away from the water-cooled unit, ensuring that the hot air discharged from the exhaust duct is directed away from the unit. This facilitates efficient space utilization and prevents the hot air from affecting the normal operation of the water-cooled unit, thus preventing the accumulation of hot air that could damage it. It also facilitates convenient maintenance of the water-cooled unit.

[0028] Cooling water flows into the cooling water pipe from the outlet of the distributor pipe and then flows to the heat exchange pipe. The battery module exchanges heat with the heat-conducting components, allowing the heat generated by the battery module to be dissipated through the heat-conducting components. The cooling water in the heat exchange pipe exchanges heat with the heat-conducting components, thus carrying away the heat from the heat-conducting components. By continuously supplying cooling water to the heat exchange pipe, the heat exchange pipe continuously exchanges heat with the heat-conducting components, and the heat-conducting components continuously exchange heat with the battery module, thereby dissipating heat from the battery module. This turns the cooling water into hot water, and the hot water flows out of the battery pack through the hot water pipe. This helps to avoid direct contact between the heat exchange pipe and the battery module, preventing leakage from the heat exchange pipe and preventing condensation inside the battery module due to the low temperature of the cooling water, thus preventing any impact on the battery module. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model.

[0031] Figure 2 This is a schematic diagram of the internal structure of the shell in Embodiment 1 of this utility model.

[0032] Figure 3 This is a schematic diagram of the power battery mechanism and water-cooled unit in Embodiment 1 of this utility model.

[0033] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0034] Figure 5 This is a schematic diagram of the structure of the shunt pipe and the manifold in Embodiment 1 of this utility model.

[0035] Figure 6 This is a schematic diagram of the heat dissipation component in Embodiment 1 of this utility model.

[0036] Figure 7 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0037] The component designations are as follows: 1. Base; 2. Shell; 3. Water tank; 4. Exhaust duct; 5. Base; 6. Water-cooled unit; 7. Isolation net; 8. Outlet pipe; 9. Diverter pipe; 91. Inlet; 92. Outlet; 10. Heat dissipation assembly; 101. Cooling water pipe; 102. Heat-conducting component; 1021. Mounting groove; 103. Heat exchanger pipe; 1031. Inlet section; 1032. Heat exchange section; 1033. Outlet section; 104. Hot water pipe; 12. Return pipe; 13. Second diverter pipe; 14. Manifold; 141. Manifold end; 142. Return end; 15. Connecting pipe; 16. Expansion tank; 17. Cable tie; 18. Diesel generator mechanism; 19. Power battery mechanism; 191. Battery rack; 192. Battery pack; 20. Control and operation mechanism. Detailed Implementation

[0038] The following will refer to the appendix in the embodiments of this utility model. Figures 1 to 6 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example

[0039] A heat dissipation structure for a hybrid power unit, referring to Figure 1It includes a rectangular base 1 and a housing 2 mounted on the base 1, with one end of the base 1 being the front end and the other end being the rear end. (Combined) Figure 2 In this embodiment, the hybrid power unit includes a diesel generator 18 and a power battery 19, and the diesel generator 18 and the power battery 19 are arranged sequentially from the front end to the rear end of the base 1.

[0040] Reference Figure 2 A water tank 3 is provided at one end of the housing 2. The water tank 3 is used to dissipate heat for the diesel generator 18. The water tank 3 is a relatively mature technology in the prior art and will not be described in detail. The water tank 3 is located inside the housing 2 and is close to the front end of the base 1. The water tank 3 includes a heat dissipation end that extends out of the housing 2. Thus, during operation, the diesel generator 18 generates heat, which is dissipated through the water tank 3, transferring the heat to the water tank 3, and then the heat from the water tank 3 is discharged outside the housing 2 through the heat dissipation end.

[0041] Reference Figure 2 and Figure 3 One end of the housing 2 is also provided with an exhaust duct 4. The exhaust duct 4 is away from the water tank 3. The exhaust duct 4 includes an air inlet end and an exhaust end. The air inlet end is connected to the heat exhaust end of the water tank 3. The exhaust end of the exhaust duct 4 faces upward. When exhausting heat, the hot air led out by the heat exhaust end enters the exhaust duct 4 from the air inlet end and is discharged from the exhaust end through the guidance of the exhaust duct 4. This helps to ensure the exhaust direction of the hot air and exhaust the hot air to the top of the housing 2.

[0042] Reference Figure 2 and Figure 3 The exhaust end cover of the exhaust duct 4 is equipped with an isolation net 7. The isolation net 7 is compatible with the exhaust end. The mesh structure of the isolation net 7 can prevent foreign objects from entering the exhaust duct 4, thereby avoiding damage or blockage of internal components.

[0043] Reference Figure 2 and Figure 3 In this embodiment, the power battery mechanism 19 includes a battery rack 191 and a battery pack 192 disposed on the battery rack 191. The battery rack 191 has battery cavities for mounting the battery packs 192. The battery packs 192 are cuboid in shape and distributed along the width direction of the base 1. The battery packs 192 are detachably connected to the battery cavities. Multiple battery cavities are provided, and these cavities are evenly spaced along the height direction of the base 1. Multiple battery packs 192 are correspondingly disposed within these cavities, and each battery pack 192 is mounted in one of the multiple cavities. In this embodiment, six battery cavities are provided, and six battery packs 192 are correspondingly disposed within these six cavities, with each of the six battery packs 192 mounted in one of the six cavities. Furthermore, each battery pack 192 includes multiple sets of battery modules for realizing the functions of the battery pack 192.

[0044] Reference Figure 3 and Figure 4 A base 5 is mounted on the casing 2, on the same side as the exhaust duct 4. The base 5 is aligned with the exhaust duct 4 along the height direction of the base 1, and is close to the air inlet end of the exhaust duct 4. The base 5 is L-shaped, with the shorter side of the L-shape connected to the casing 2. A water-cooled unit 6 is mounted on the longer side of the base 5. The water-cooled unit 6 is a relatively mature technology in the prior art, and will not be described in detail. By placing the water-cooled unit 6 on the outside of the casing 2, the airflow of the water-cooled unit 6 is smooth, preventing any impact on the heat dissipation effect of the unit. Secondly, the water-cooled unit 6 is located on the bottom side of the exhaust duct 4, so that the hot air discharged from the exhaust duct 4 is away from the water-cooled unit 6. This is conducive to the rational use of space, prevents the hot air discharged from the exhaust duct 4 from affecting the normal operation of the water-cooled unit 6, and prevents the accumulation of hot air from damaging the water-cooled unit 6. It also facilitates the maintenance of the water-cooled unit 6.

[0045] Continue to refer to Figure 3 and Figure 4 The water-cooled unit 6 includes an outlet for discharging cooling water and a return outlet for recovering hot water. The outlet is connected to an outlet pipe 8, which passes through the housing 2 and is located near the bottom of the battery rack 191. Figure 5 The end of the water outlet pipe 8 furthest from the water-cooled unit 6 is connected to a branch pipe 9, which is close to the battery rack 191. The branch pipe 9 includes an inlet end 91 and multiple outlet ends 92. The inlet end 91 is connected to the water outlet pipe 8, and the number of outlet ends 92 corresponds to the number of battery packs 192, that is, there are six outlet ends 92, and each of the six outlet ends 92 is close to one of the six battery packs 192. Each outlet end 92 of the branch pipe 9 is connected to a heat dissipation component 10, which is used to dissipate heat from the inside of the battery pack 192.

[0046] During heat dissipation, cooling water is output from the outlet of the water-cooled unit 6 to the outlet pipe 8. The cooling water flows through the outlet pipe 8 to the distribution pipe 9, where it is split and flows out from multiple outlets 92 to the heat dissipation components 10. Thus, the cooling water is distributed to multiple heat dissipation components 10 through the distribution pipe 9. The multiple heat dissipation components 10 dissipate heat from the inside of multiple battery packs 192, resulting in better heat dissipation. The distribution pipe 9 helps reduce the number of pipes, and the simultaneous heat dissipation of the inside of the battery packs 192 by multiple heat dissipation components 10 helps improve heat dissipation efficiency.

[0047] Specifically, refer to Figure 5 and Figure 6The heat dissipation assembly 10 includes a cooling water pipe 101 connected to the outlet 92 of the branch pipe 9, a heat-conducting component 102 disposed within the battery pack 192, a heat exchange pipe 103 connected at one end to the cooling water pipe 101, and a hot water pipe 104 connected at one end to the heat exchange pipe 103. The cooling water pipe 101 is connected to the outlet 92 of the branch pipe 9, and the end of the cooling water pipe 101 away from the branch pipe 9 extends into the battery pack 192.

[0048] Reference Figure 5 and Figure 6 The heat-conducting component 102 is rectangular in shape and is distributed along the length of the battery pack 192. It is made of a material with high thermal conductivity, specifically aluminum. Aluminum has excellent thermal conductivity and is lightweight, which helps prevent increasing the overall weight of the battery pack 192. Furthermore, aluminum's excellent physical and chemical properties make it easy to process into the required shapes. A mounting groove 1021 is provided on the heat-conducting component 102. The battery module extends into the mounting groove 1021, and the inner wall of the mounting groove 1021 is adapted to fit the battery module, so that the inner wall of the mounting groove 1021 abuts against the battery module, thereby facilitating the transfer of heat from the battery module to the heat-conducting component 102. The mounting slots 1021 are provided with multiple slots corresponding to the number of battery modules. The multiple mounting slots 1021 are arranged at equal intervals along the length of the heat conductor 102. The multiple battery modules are installed in the multiple mounting slots 1021 one by one, thereby increasing the contact area between the battery modules and the heat conductor 102, so that the heat generated by the multiple battery modules can be better transferred to the heat conductor 102.

[0049] Reference Figure 6 The heat exchange tube 103 includes an inlet section 1031, a heat exchange section 1032, and an outlet section 1033. The inlet section 1031 extends into one end of the heat-conducting element 102. The heat exchange section 1032 is wavy and surrounds multiple mounting slots 1021. The outlet section 1033 extends out of the heat-conducting element 102, and the outlet section 1033 and the inlet section 1031 are located at the same end of the heat-conducting element 102. Therefore, the heat exchange section 1032 helps to increase the contact area between the heat exchange tube 103 and the heat-conducting element 102, which is beneficial to improving the heat exchange efficiency. The end of the heat exchange tube 103 extending out of the heat-conducting element 102 is connected to the hot water pipe 104. The end of the hot water pipe 104 away from the heat exchange tube 103 extends out of the battery pack 192.

[0050] During heat dissipation, cooling water flows from the outlet 92 of the distributor 9 into the cooling water pipe 101, and then from the cooling water pipe 101 to the heat exchange pipe 103. The battery module exchanges heat with the heat-conducting component 102, allowing the heat generated by the battery module to be dissipated through the heat-conducting component 102. The cooling water in the heat exchange pipe 103 exchanges heat with the heat-conducting component 102, thereby carrying away the heat from the heat-conducting component 102. By continuously supplying cooling water to the heat exchange pipe 103, the heat exchange pipe 103 continuously exchanges heat with the heat-conducting component 102, and the heat-conducting component 102 continuously exchanges heat with the battery module, thus dissipating heat from the battery module. This causes the cooling water to become hot water, and the hot water flows out of the battery pack 192 from the hot water pipe 104. This helps to avoid direct contact between the heat exchange pipe 103 and the battery module, preventing leakage from the heat exchange pipe 103 and preventing condensation inside the battery module due to the low temperature of the cooling water, thus preventing any impact on the battery module.

[0051] Looking back Figure 4 and Figure 5 The return port of the water-cooled unit 6 is connected to a return pipe 12, which also passes through the housing 2. The end of the return pipe 12 furthest from the water-cooled unit 6 is connected to a second branch pipe 13. The second branch pipe 13 is a T-junction, and the return pipe 12 is connected to the first end of the second branch pipe 13. The second end of the second branch pipe 13 is connected to a manifold 14, which is close to the battery rack 191. The manifold 14 includes a return end 142 and multiple manifold ends 141. The second end of the second branch pipe 13 is connected to the return end 142. The number of manifold ends 141 corresponds to the number of battery packs 192. Each of the multiple manifold ends 141 is connected to a hot water pipe 104 in one of the multiple heat dissipation components 10. That is, there are six manifold ends 141, and each of the six manifold ends 141 is close to one of the six battery packs 192 and connected to a hot water pipe 104 in one of the six heat dissipation components 10. The hot water flowing out of the hot water pipe 104 flows from the manifold 141 to the manifold 14, and then from the manifold 141 to the return pipe 12, and is cooled again by the water-cooled unit 6.

[0052] Looking back Figure 3 and Figure 4 The third end of the second diversion pipe 13 is connected to a connecting pipe 15. An expansion tank 16 is provided on one side of the exhaust duct 4. The side of the connecting pipe 15 away from the second diversion pipe 13 is connected to the expansion tank 16. Thus, the expansion tank 16 absorbs the expansion of water in the system caused by temperature changes, and maintains the pressure of the system. That is, the expansion tank 16 plays a protective and regulating role.

[0053] In addition, continue to refer to Figure 3 and Figure 4The base 1 is also equipped with cable ties 17, which are located between the water-cooled unit 6 and the battery rack 191. Cable ties 17 are used to fix and guide the outlet pipe 8 and the branch pipe 9. The cable ties 17 are elongated and distributed along the length of the base 1. The cable ties 17 have grooves that extend along their length and pass through both ends. Both the outlet pipe 8 and the branch pipe 9 pass through the ends of these grooves. This fixes and guides the outlet pipe 8 and the branch pipe 9, ensuring pipe stability and reducing the risk of leakage due to pipe movement or instability.

[0054] The implementation principle of this application is as follows: during heat dissipation, the diesel generator 18 is cooled through the water tank 3, and the heat is transferred to the water tank 3. The heat from the water tank 3 is discharged above the shell 2 through the exhaust duct 4.

[0055] Simultaneously, cooling water is output from the outlet of the water-cooled unit 6 to the outlet pipe 8. The cooling water flows through the outlet pipe 8 to the branch pipe 9. The cooling water flows from the outlet end 92 of the branch pipe 9 into the cooling water pipe 101, and from the cooling water pipe 101 to the heat exchange pipe 103. The battery module exchanges heat with the heat-conducting component 102, so that the heat generated by the battery module is discharged through the heat-conducting component 102. The cooling water in the heat exchange pipe 103 exchanges heat with the heat-conducting component 102, thereby carrying away the heat of the heat-conducting component 102. By continuously supplying cooling water to the heat exchange pipe 103, the heat exchange pipe 103 continuously exchanges heat with the heat-conducting component 102, and the heat-conducting component 102 continuously exchanges heat with the battery module, thereby dissipating heat from the battery module, turning the cooling water into hot water. The hot water flows from the confluence end 141 to the confluence pipe 14, and from the confluence end 141 to the return pipe 12, and is cooled again by the water-cooled unit 6. The expansion tank 16 absorbs the expansion of water in the system caused by temperature changes, maintaining stable system pressure. This helps prevent the heat exchange tube 103 from directly contacting the battery module, preventing leakage from the heat exchange tube 103, and preventing condensation inside the battery module due to the low temperature of the cooling water, thus preventing any impact on the battery module.

[0056] The water-cooled unit 6 is located on the outside of the casing 2, which ensures smooth ventilation of the water-cooled unit 6 and prevents it from affecting the heat dissipation effect of the unit. Secondly, the water-cooled unit 6 is located on the bottom side of the exhaust duct 4, so that the hot air discharged from the exhaust duct 4 is away from the water-cooled unit 6. This is conducive to the rational use of space, prevents the hot air discharged from the exhaust duct 4 from affecting the normal operation of the water-cooled unit 6, thereby preventing the accumulation of hot air from damaging the water-cooled unit 6, and also facilitates the maintenance of the water-cooled unit 6. Example

[0057] Based on Embodiment 1, a hybrid power unit is provided.

[0058] Reference Figure 7According to the control of the diesel generator 18 and the power battery 19 described in Embodiment 1, the hybrid power unit also includes a control and operation mechanism 20 disposed on the base 1. The control and operation mechanism is used to control the operating state of the diesel generator 18 and the battery pack 192. The diesel generator 18, the power battery 19, and the control and operation mechanism 20 are arranged sequentially from the front end to the rear end of the base 1, with the control and operation mechanism 20 located near the rear end of the base. Both the diesel generator 18 and the power battery 19 are electrically connected to the control and operation mechanism 20.

[0059] The implementation principle of this application is as follows: When generating electricity, the working state of the diesel generator 18 and the battery pack 192 is controlled by the control operating mechanism 20. The diesel generator 18 generates electrical energy by burning diesel, and the battery pack 192 stores or releases electrical energy, so that the diesel generator 18 and the battery pack 192 work together to generate electricity, so as to adapt to different power demand and achieve efficient energy utilization and flexible power output.

[0060] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A heat dissipation structure for a hybrid power unit, comprising a base (1) and a housing (2) mounted on the base (1), wherein a water tank (3) for dissipating heat from a diesel generator is provided inside the housing (2), characterized in that: An exhaust duct (4) is also provided on the outside of the housing (2). The exhaust duct (4) includes an air inlet and an air outlet. The air inlet of the exhaust duct (4) is connected to the water tank (3). A base (5) is also provided on the same side of the housing (2) and the exhaust duct (4). A water-cooled unit (6) for cooling the battery pack is provided on the base (5). The exhaust outlet of the exhaust duct (4) is away from the water-cooled unit (6).

2. The heat dissipation structure of a hybrid power unit according to claim 1, characterized in that: The exhaust end cover of the exhaust duct (4) is provided with an isolation net (7), and the isolation net (7) is compatible with the exhaust end.

3. The heat dissipation structure of a hybrid power unit according to claim 1, characterized in that: The water-cooled unit (6) includes an outlet for outputting cooling water and a return outlet for recovering hot water. The outlet is connected to an outlet pipe (8), which extends into the housing (2). The outlet pipe (8) is connected to a branch pipe (9), which includes an inlet end (91) and an outlet end (92). The inlet end (91) is connected to the outlet pipe (8), and the outlet end (92) is connected to a heat dissipation component (10) for dissipating heat inside the battery pack.

4. The heat dissipation structure of a hybrid power unit according to claim 3, characterized in that: The heat dissipation assembly (10) includes a cooling water pipe (101) connected to the water outlet (92), a heat-conducting component (102) disposed in the battery pack, a heat exchange pipe (103) passing through the heat-conducting component (102), and a hot water pipe (104) with one end connected to the heat exchange pipe (103). The end of the cooling water pipe (101) away from the branch pipe (9) extends into the battery pack. The heat-conducting component (102) is used to mount the battery module. The heat exchange tube (103) has both ends extending out of the heat conductor (102). One end of the heat exchange tube (103) is connected to the end of the cooling water pipe (101) that extends into the battery pack. The other end of the heat exchange tube (103) is connected to the hot water pipe (104). A section of the heat exchange tube (103) located inside the heat conductor (102) abuts against the heat conductor. The end of the hot water pipe (104) away from the heat exchange tube (103) extends out of the battery pack.

5. The heat dissipation structure of a hybrid power unit according to claim 4, characterized in that: The heat-conducting component (102) is provided with a mounting groove (1021). The inner wall of the mounting groove (1021) is adapted to the battery module. The battery module is installed in the mounting groove (1021). The mounting groove (1021) is provided in accordance with the number of battery modules. The battery modules are installed in the mounting groove (1021) one by one.

6. The heat dissipation structure of a hybrid power unit according to claim 4, characterized in that: The heat exchange tube (103) includes an inlet section (1031), a heat exchange section (1032), and an outlet section (1033). The inlet section (1031) extends into one end of the heat-conducting element (102). The heat exchange section (1032) is wavy and surrounds a plurality of mounting slots (1021). The outlet section (1033) extends out of the heat-conducting element (102).

7. The heat dissipation structure of a hybrid power unit according to claim 4, characterized in that: The return port of the water-cooled unit (6) is connected to a return pipe (12). The end of the return pipe (12) away from the water-cooled unit (6) is connected to a second branch pipe (13). The first end of the second branch pipe (13) is connected to the return pipe (12). The second end of the second branch pipe (13) is connected to a manifold (14). The manifold (14) includes a manifold end (141) and a return end (142). The number of manifold ends (141) is the same as the number of heat dissipation components (10). The manifold ends (141) are connected one-to-one to the hot water pipe (104) in the heat dissipation components (10).

8. The heat dissipation structure of a hybrid power unit according to claim 7, characterized in that: The third end of the second diversion pipe (13) is connected to a connecting pipe (15), and an expansion tank (16) is provided on one side of the exhaust duct (4). The side of the connecting pipe (15) away from the second diversion pipe (13) is connected to the expansion tank (16).

9. The heat dissipation structure of a hybrid power unit according to claim 8, characterized in that: The base (1) is also provided with a tie bar (17) for fixing and guiding the water outlet pipe (8) and the diversion pipe (9), and both the water outlet pipe (8) and the diversion pipe (9) pass through the tie bar (17).

10. A hybrid power unit, characterized in that: Includes the heat dissipation structure described in any one of claims 1-9.

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