Thermal management system and electric equipment

Abstract

The embodiment of the utility model provides a thermal management system and electric equipment, and the thermal management system comprises a battery shell used for accommodating a battery monomer, the battery shell is provided with a fluid channel, the fluid channel is used for accommodating a cooling medium, and the cooling medium exchanges heat with the battery monomer; the electric driving mechanism is connected with the battery pack, so that the cooling medium flows between the electric driving mechanism and the battery pack; the heat dissipation mechanism is connected to the electric driving mechanism; the heating medium is used for heating the cooling medium; the heater is connected with the battery pack and the heat dissipation mechanism and used for heating the cooling medium. The battery pack is respectively connected with the heater and the electric driving mechanism, and the heat dissipation mechanism is respectively connected with the electric driving mechanism and the heater, so that a cooling medium can circulate between the battery pack and the electric driving mechanism, and the cooling medium can be heated by the heater and cooled by the oil cooling mechanism, and the requirements of the battery pack and the electric driving mechanism on temperature are met; two sets of systems are combined into a whole, the cost of the whole vehicle is reduced, and meanwhile the available space of a front cabin is increased.

Description

Technical Field

[0001] The present application relates to the field of thermal management technology, and in particular to a thermal management system and electrical equipment. Background Art

[0002] In recent years, with the decline of fossil fuels and the increasing prominence of environmental issues, people's concerns about global warming and oil safety have accelerated the development of environmentally friendly energy. The government and relevant groups have taken measures to make energy development in an environmentally friendly direction, thereby reducing greenhouse gas emissions and meeting energy needs.

[0003] As a new energy vehicle, electric vehicles have the advantages of energy saving and environmental protection, and are becoming more and more a hot topic in the automotive field. As the power source of electric vehicles, power batteries are one of the main directions of electric vehicle power development in the world.

[0004] Traditional vehicle cooling has two systems: water cooling and oil cooling. Both systems have their own components, which increases the cost of the vehicle accordingly. At the same time, the front cabin space of the vehicle is high, the control logic of the two systems is complex, and the after-sales maintenance cost is high. Utility Model Content

[0005] The purpose of the embodiments of the present application is to provide a thermal management system and electrical equipment that can combine two systems into one, reduce the cost of the entire vehicle, and increase the available space in the front cabin.

[0006] In a first aspect, an embodiment of the present application provides a thermal management system, comprising: a battery pack, comprising a battery housing and a battery cell, the battery housing being configured to accommodate the battery cell, and the battery housing being provided with a fluid channel, the fluid channel being configured to accommodate a cooling medium, the cooling medium being configured to exchange heat with the battery cell; an electric drive mechanism connected to the battery pack so that the cooling medium flows between the electric drive mechanism and the battery pack; a heat dissipation mechanism connected to the electric drive mechanism for heating the cooling medium; and a heater, respectively connected to the battery pack and the heat dissipation mechanism for heating the cooling medium.

[0007] In the above implementation process, the battery pack is respectively connected to the heater and the electric drive mechanism, and the heat dissipation mechanism is respectively connected to the electric drive mechanism and the heater, so that the cooling medium can flow between the battery pack and the electric drive mechanism, and the cooling medium can be heated by the heater and cooled by the oil cooling mechanism, which meets the temperature requirements of the battery pack and the electric drive mechanism, realizes the integration of the two systems, reduces the cost of the whole vehicle, and increases the available space in the front cabin.

[0008] In some embodiments, the heat dissipation mechanism includes a radiator and an oil pump, the radiator is connected to the oil pump and the heater respectively, and the oil pump is connected to the electric drive mechanism.

[0009] In the above implementation process, the radiator is connected to the oil pump. When the oil pump is working, it can drive the cooling medium to flow between the battery pack and the electric drive mechanism, thereby meeting the cooling needs of core components at the same time, reducing a set of cooling systems, and simplifying the control logic of the cooling system, which has a positive effect on reducing the cost of the entire vehicle.

[0010] In some embodiments, the heat dissipation mechanism further includes an expansion tank, which is connected to the radiator and the oil pump respectively, and can be used to absorb the volume of the cooling medium that expands as the temperature rises, thereby reducing the pressure of the thermal management system.

[0011] In some embodiments, the cooling medium includes an oil cooling medium. The cooling medium of the battery pack and the cooling medium of the electric drive mechanism are unified, which can meet the cooling requirements of core components, reduce a set of cooling systems, simplify the control logic of the cooling system, and play a positive role in reducing the cost of the entire vehicle.

[0012] In some embodiments, the electric drive mechanism includes an electric drive controller and an electric drive system, the electric drive controller is connected to the battery pack and the electric drive system respectively, and the electric drive system is connected to the oil pump.

[0013] In some embodiments, the battery housing includes a battery cover and a battery tray, the battery cover is connected to the battery tray, and the battery cover and / or the battery tray are configured with the fluid channel.

[0014] In the above implementation process, the battery cover is connected to the battery tray, and the battery cover and / or the battery tray are configured with a fluid channel, so that when the battery cell is configured in the accommodating cavity, the battery cell can be soaked, thereby improving the heat exchange efficiency of the battery cell.

[0015] In some embodiments, the thermal management system further includes a first valve body member connected to the heater.

[0016] In some embodiments, the thermal management system further includes a second valve body, wherein the second valve body is connected to the heat dissipation mechanism.

[0017] In some embodiments, the thermal management system further includes a third valve body, and the third valve body is connected to the electric drive mechanism.

[0018] In a second aspect, the present application also provides an electrical device, comprising a thermal management system as described in any of the above items.

[0019] The electrical equipment provided in the second embodiment of the present application includes the thermal management system described in the technical solution of the first aspect, and thus has all the technical effects of the above embodiments, which will not be repeated here.

[0020] Other features and advantages of the present disclosure will be set forth in the following description, or some features and advantages may be inferred or unambiguously determined from the description, or may be learned by implementing the above-mentioned technology of the present disclosure.

[0021] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of a thermal management system provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the specific structure of a thermal management system provided in one embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of a battery pack of a thermal management system provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the partial structure of a battery pack of the thermal management system provided in an embodiment of the present application.

[0027] Reference numerals

[0028] 100. Battery pack; 101. Battery cover; 102. Battery tray; 103. Battery cell; 200. Electric drive mechanism; 201. Electric drive controller; 202. Electric drive system; 300. Heat dissipation mechanism; 301. Oil radiator; 302. Oil pump; 303. Expansion tank; 400. Heater; 500. First valve body; 600. Third valve body. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0030] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or a point connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0032] Example

[0033] Power batteries, electric drives and electronic controls are the three core components of new energy vehicles. They are responsible for the input and output of current and have high requirements for heat dissipation. The cooling medium for power battery systems and electric drive controllers is usually water + ethylene glycol, while the cooling medium for electric drives is usually oil. As a result, the vehicle has two cooling systems that play different roles.

[0034] Traditional vehicle cooling has two systems: water cooling and oil cooling. Both systems have their own parts, which increases the cost of the vehicle accordingly. At the same time, the front cabin space of the vehicle is high, the control logic of the two systems is complex, and the after-sales maintenance cost is high.

[0035] In view of this, if Figure 1-Figure 4As shown, in the first aspect, an embodiment of the present application provides a thermal management system, including: a battery pack 100, including a battery shell and a battery cell 103, the battery shell being configured to accommodate the battery cell 103, and the battery shell being provided with a fluid channel, the fluid channel being configured to accommodate a cooling medium, the cooling medium being configured to exchange heat with the battery cell 103; an electric drive mechanism 200, which is connected to the battery pack 100 so that the cooling medium flows between the electric drive mechanism 200 and the battery pack 100; a heat dissipation mechanism 300, which is connected to the electric drive mechanism 200; for heating the cooling medium; a heater 400, which is respectively connected to the battery pack 100 and the heat dissipation mechanism 300, for heating the cooling medium.

[0036] Exemplarily, the battery pack 100 has heating, cooling and temperature equalization requirements, and the electric drive mechanism 200 only has cooling requirements, wherein the heating temperature of the battery pack 100 is generally between 30°C and 45°C, and the cooling temperature is generally between 15°C and 25°C. Since a fluid channel is configured on the battery housing, when the battery cell 103 is arranged in the accommodating cavity, the battery cell 103 can be wetted through the fluid channel, thereby effectively solving the temperature equalization problem of the battery pack 100. The cooling requirement temperature of the electric drive mechanism 200 is generally between 40°C and 50°C. The thermal management system unifies and simplifies the traditional vehicle thermal management system and combines the two systems into one.

[0037] In the above implementation process, the battery pack 100 is respectively connected to the heater 400 and the electric drive mechanism 200, and the heat dissipation mechanism 300 is respectively connected to the electric drive mechanism 200 and the heater 400, so that the cooling medium can flow between the battery pack 100 and the electric drive mechanism 200, and the cooling medium can be heated by the heater 400 and cooled by the oil cooling mechanism, thereby meeting the temperature requirements of the battery pack 100 and the electric drive mechanism 200, realizing the integration of the two systems into one, reducing the cost of the entire vehicle, and increasing the available space in the front cabin.

[0038] In some embodiments, the heat dissipation mechanism 300 includes a radiator and an oil pump 302 . The radiator includes but is not limited to an oil cooling radiator 301 . The radiator is respectively connected to the oil pump 302 and the heater 400 . The oil pump 302 is connected to the electric drive mechanism 200 .

[0039] In the above implementation process, the radiator is connected to the oil pump 302. When the oil pump 302 is working, it can drive the cooling medium to flow between the battery pack 100 and the electric drive mechanism 200, thereby meeting the cooling requirements of the core components at the same time, reducing a set of cooling systems, simplifying the control logic of the cooling system, and playing a positive role in reducing the cost of the entire vehicle.

[0040] In some embodiments, the heat dissipation mechanism 300 further includes an expansion tank 303, which is respectively connected to the radiator and the oil pump 302. The expansion tank 303 can be used to absorb the volume of the cooling medium that expands as the temperature rises, thereby reducing the pressure of the thermal management system.

[0041] In some embodiments, the cooling medium includes an oil cooling medium. The cooling medium of the battery pack 100 and the cooling medium of the electric drive mechanism 200 are unified, which can meet the cooling requirements of core components, reduce a set of cooling systems, simplify the control logic of the cooling system, and play a positive role in reducing the cost of the whole vehicle.

[0042] In some embodiments, the electric drive mechanism 200 includes an electric drive controller 201 and an electric drive system 202 , the electric drive controller 201 is connected to the battery pack 100 and the electric drive system 202 , respectively, and the electric drive system 202 is connected to the oil pump 302 .

[0043] In some embodiments, the battery housing includes a battery cover 101 and a battery tray 102 , the battery cover 101 is connected to the battery tray 102 , and the battery cover 101 and / or the battery tray 102 are configured with the fluid channel.

[0044] In the above implementation process, the battery cover 101 is connected to the battery tray 102, and the battery cover 101 and / or the battery tray 102 are configured with a fluid channel, so that when the battery cell 103 is configured in the accommodating cavity, the battery cell 103 can be soaked, thereby improving the heat exchange efficiency of the battery cell 103.

[0045] In one embodiment, the thermal management system further includes a first valve body 500, which is connected to the heater 400; the thermal management system further includes a second valve body, which is connected to the heat dissipation mechanism 300; the thermal management system further includes a third valve body 600, which is connected to the electric drive mechanism 200. Figure 1 As shown, the dotted boxes in the figure can be used to set the valve body parts. Through the control of the first valve body part 500, the second valve body part and the third valve body part 600, it can be used to control functions such as on and off to meet the cooling and heating conditions in different scenarios.

[0046] In a second aspect, the present application also provides an electrical device, including the thermal management system described above. The electrical device may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, and the like. Among them, the electric toy may include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, and an electric airplane toy, and the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, and the like.

[0047] For the convenience of description, the following embodiments are described by taking a vehicle as an example of an electrical device in an embodiment of the present application.

[0048] The vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery pack 100 is arranged inside the vehicle, and the battery pack 100 can be arranged at the bottom, head or tail of the vehicle. The battery pack 100 can be used to power the vehicle, for example, the battery pack 100 can be used as an operating power source for the vehicle. The vehicle can also include a controller and a motor, and the controller is used to control the battery pack 100 to power the motor, for example, for starting, navigating and driving the vehicle. Working power requirements.

[0049] In some embodiments of the present application, the battery pack 100 can be used not only as an operating power source for the vehicle, but also as a driving power source for the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0050] The electrical equipment provided in the second embodiment of the present application includes the thermal management system described in the technical solution of the first aspect, and thus has all the technical effects of the above embodiments, which will not be repeated here.

[0051] In all the embodiments of the present application, "big" and "small" are relative, "more" and "less" are relative, and "up" and "down" are relative. The expressions of such relative terms are not elaborated in the embodiments of the present application.

[0052] It should be understood that the "in this embodiment", "in the embodiment of the present application" or "as an optional implementation" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in this embodiment", "in the embodiment of the present application" or "as an optional implementation" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. Those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required for the present application.

[0053] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the above-mentioned processes does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0054] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A thermal management system, characterized in that: include: A battery pack, comprising a battery housing and a battery cell, wherein the battery housing is configured to accommodate the battery cell, and the battery housing is configured with a fluid channel, wherein the fluid channel is configured to accommodate a cooling medium, and the cooling medium is configured to exchange heat with the battery cell; an electric drive mechanism connected to the battery pack so that the cooling medium flows between the electric drive mechanism and the battery pack; A heat dissipation mechanism connected to the electric drive mechanism for heating the cooling medium; A heater is connected to the battery pack and the heat dissipation mechanism respectively to heat the cooling medium.

2. The thermal management system according to claim 1, characterized in that: The heat dissipation mechanism includes a radiator and an oil pump, the radiator is connected to the oil pump and the heater respectively, and the oil pump is connected to the electric drive mechanism.

3. The thermal management system according to claim 2, characterized in that: The heat dissipation mechanism also includes an expansion tank, and the expansion tank is respectively connected to the radiator and the oil pump.

4. The thermal management system according to claim 1, characterized in that: The cooling medium includes oil cooling medium.

5. The thermal management system according to claim 2, characterized in that: The electric drive mechanism includes an electric drive controller and an electric drive system. The electric drive controller is connected to the battery pack and the electric drive system respectively, and the electric drive system is connected to the oil pump.

6. The thermal management system according to claim 1, characterized in that: The battery housing includes a battery cover and a battery tray, the battery cover is connected to the battery tray, and the battery cover and / or the battery tray are provided with the fluid channel.

7. The thermal management system according to claim 1, characterized in that: The thermal management system further includes a first valve body member connected to the heater.

8. The thermal management system according to claim 1 or 2, characterized in that: The thermal management system further includes a second valve body, wherein the second valve body is connected to the heat dissipation mechanism.

9. The thermal management system according to claim 1 or 5, characterized in that: The thermal management system further includes a third valve body, and the third valve body is connected to the electric drive mechanism.

10. An electrical device, characterized in that: Comprising a thermal management system as claimed in any one of claims 1 to 9.

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