Gas path adjusting system and vehicle

Abstract

The utility model discloses an air path adjusting system and a vehicle, and the air path adjusting system comprises an air suspension which is provided with an air supply unit; and the battery pack is provided with a containing space, and the containing space selectively communicates with the air supply unit. According to the air path adjusting system, the air suspension is provided with the air supply unit, and the battery pack is provided with the containing space and is selectively communicated with the air supply unit through the containing space, so that air pressure balance inside and outside the battery pack is realized. Meanwhile, air pressure balance inside and outside the battery pack is achieved through the air supply unit of the air suspension, other devices do not need to be additionally arranged, and the size of an air path adjusting system is reduced. Besides, an internal circulation closed route is formed between the accommodating space and the gas supply unit, so that the gas entering and exiting the accommodating space of the battery pack is free of impurities and is not polluted by the outside, and the reliability of the battery pack and the gas path adjusting system is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an air path regulating system and a vehicle. Background Art

[0002] During the charge and discharge process of the battery pack, the temperature change will cause the internal air pressure of the battery pack to change. In the prior art, the battery pack is usually directly ventilated with the external environment through an explosion-proof valve to achieve the balance of the internal and external air pressure of the battery pack. However, the aging of the explosion-proof valve poses the risk of impurities from the external environment entering the battery pack, affecting the safety of the battery pack.

[0003] In addition, the waterproof and breathable membrane of the explosion-proof valve has two disadvantages: 1. It cannot filter water vapor, so in areas with high humidity or when doing high temperature and high humidity experiments, a large amount of water vapor will enter the battery pack. After returning to the normal environment, the water vapor will condense into water, causing insulation failure. 2. As the service life of the battery pack increases, the surface of the waterproof and breathable membrane may be blocked by filtered dust impurities, causing its balanced ventilation function to decrease or even fail. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an air path regulating system, which uses the air supply unit of the air suspension to achieve air pressure balance inside and outside the battery pack, ensuring that the gas in and out of the storage space of the battery pack is free of impurities and is not polluted by the outside world.

[0005] The utility model also provides a vehicle, which comprises the above-mentioned air path regulating system.

[0006] According to an embodiment of the utility model, the air path regulating system includes: an air suspension having an air supply unit; a battery pack having a storage space, and the storage space is optionally connected to the air supply unit.

[0007] According to the gas path regulating system of the utility model embodiment, the air suspension has an air supply unit, and the battery pack has a storage space, which can be optionally connected to the air supply unit through the storage space, so as to achieve the balance of air pressure inside and outside the battery pack. At the same time, the battery pack uses the air supply unit of the air suspension to achieve the balance of air pressure inside and outside the battery pack, without the need to add other devices, reducing the volume of the gas path regulating system. In addition, through the internal circulation closed route formed between the storage space and the air supply unit, it is ensured that the gas in the storage space of the battery pack is free of impurities and is not polluted by the outside world, effectively improving the reliability of the battery pack and the gas path regulating system.

[0008] In some embodiments of the utility model, it also includes: a solenoid valve, the solenoid valve includes a main interface and a first branch interface, the main interface is connected to the accommodating space, the air supply unit includes an air tank, the air tank is used to store compressed air, the first branch interface is connected to the outlet of the air tank, and the main interface is optionally connected to the first branch interface.

[0009] In some embodiments of the present invention, the air supply unit further includes: a dryer, wherein the inlet of the dryer is connected to the external environment, and the outlet of the dryer is connected to the inlet of the air storage tank.

[0010] In some embodiments of the present invention, the solenoid valve further includes a second branch interface, the second branch interface is connected to the inlet of the dryer, and the main interface is optionally connected to the first branch interface or the second branch interface.

[0011] In some embodiments of the present invention, the air supply unit further includes: a filter assembly, the inlet of the filter assembly is connected to the external environment, and the outlet of the filter assembly is connected to the inlet of the dryer.

[0012] In some embodiments of the present invention, the air supply unit further includes: an air compressor, the inlet of the air compressor is connected to the outlet of the dryer, and the outlet of the air compressor is connected to the inlet of the air storage tank.

[0013] In some embodiments of the present invention, the solenoid valve further includes a third branch interface, wherein the third branch interface is connected to the external environment, and the main interface is optionally connected to the first branch interface, the second branch interface or the third branch interface.

[0014] In some embodiments of the present utility model, the solenoid valve further includes a blocking port, and the main interface is optionally connected to the first branch interface, the second branch interface, the third branch interface or the blocking port.

[0015] In some embodiments of the present invention, the battery pack includes a BMS and a pressure sensor, the BMS is communicatively connected to the sensor and the solenoid valve, respectively, and the pressure sensor is located in the accommodating space.

[0016] A vehicle according to an embodiment of the utility model includes the above-mentioned air path regulating system.

[0017] According to the vehicle of the embodiment of the utility model, an air circuit regulating system is provided, the air suspension has an air supply unit, and the battery pack has a storage space, which can be optionally connected to the air supply unit through the storage space, so as to achieve the balance of air pressure inside and outside the battery pack. At the same time, the battery pack uses the air supply unit of the air suspension to achieve the balance of air pressure inside and outside the battery pack, without the need to add other devices, thereby reducing the volume of the vehicle occupied by the air circuit regulating system. In addition, through the internal circulation closed route formed between the storage space and the air supply unit, it is ensured that the gas in the storage space of the battery pack is free of impurities and is not polluted by the outside world, which effectively improves the reliability and safety of the vehicle.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a structural schematic diagram of the gas path regulation system according to an embodiment of the utility model.

[0021] Reference numerals:

[0022] 1000. Gas circuit adjustment system;

[0023] 100. air supply unit; 11. air storage tank; 12. dryer; 13. filter assembly; 14. air compressor;

[0024] 200, battery pack;

[0025] 300, solenoid valve; 31, main interface; 32, first branch interface; 33, second branch interface; 34, third branch interface; 35, plugging port. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The gas circuit regulation system 1000 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0030] like Figure 1 As shown, the air circuit regulating system 1000 according to an embodiment of the present utility model is used in a vehicle.

[0031] The air path regulating system 1000 includes an air suspension and a battery pack 200 . The air suspension has an air supply unit 100 . The battery pack 200 has a receiving space, and the receiving space is optionally connected to the air supply unit 100 .

[0032] It can be understood that the air suspension system has an air supply unit 100 and an air spring unit. When the vehicle is traveling on an uneven road and the height of the vehicle body needs to be increased, air is supplied to the air spring unit through the air supply unit 100 to increase the height of the vehicle body and reduce the contact between the chassis and the ground, thereby reducing the impact and vibration of the vehicle and improving ride comfort.

[0033] When the air pressure in the battery pack 200 is lower than the minimum value, the storage space is connected to the air supply unit 100, and the air supply unit 100 supplies air to the storage space, thereby increasing the air pressure in the storage space; when the air pressure in the battery pack 200 is higher than the maximum value, the storage space is connected to the air supply unit 100, and the storage space releases pressure to the air supply unit 100, thereby reducing the air pressure in the storage space; when the air pressure in the battery pack 200 is between the maximum value and the minimum value, the storage space is disconnected from the air supply unit 100 to maintain the current air pressure in the battery pack 200. Therefore, the storage space can be optionally connected to the air supply unit 100 of the air suspension, thereby achieving air pressure balance inside and outside the battery pack 200.

[0034] According to the gas circuit regulating system 1000 of the embodiment of the utility model, the air suspension has an air supply unit 100, and the battery pack 200 has a storage space, which can be optionally connected to the air supply unit 100 through the storage space, so as to achieve the balance of air pressure inside and outside the battery pack 200. At the same time, the battery pack 200 uses the air supply unit 100 of the air suspension to achieve the balance of air pressure inside and outside the battery pack 200, without adding other devices, and reducing the volume of the gas circuit regulating system 1000. In addition, through the internal circulation closed route formed between the storage space and the air supply unit 100, it is ensured that the gas in the storage space of the battery pack 200 is free of impurities and is not polluted by the outside world, which effectively improves the reliability of the battery pack 200 and the gas circuit regulating system 1000.

[0035] In some embodiments of the present invention, Figure 1 As shown, the gas circuit regulation system 1000 further includes a solenoid valve 300. The solenoid valve 300 includes a main interface 31 and a first branch interface 32, the main interface 31 is connected to the accommodating space, the gas supply unit 100 includes a gas storage tank 11, the gas storage tank 11 is used to store compressed air, the first branch interface 32 is connected to the outlet of the gas storage tank 11, and the main interface 31 is optionally connected to the first branch interface 32.

[0036] Thus, the main interface 31 of the solenoid valve 300 is optionally connected to the first branch interface 32, so that the accommodating space is optionally connected to the gas storage tank 11, thereby achieving the balance of air pressure inside and outside the battery pack 200. At the same time, the solenoid valve 300 has the advantage of precise control, thereby further improving the reliability of the gas circuit regulation system 1000.

[0037] Specifically, when the air pressure in the battery pack 200 is lower than the minimum value, the main interface 31 is connected to the first branch interface 32, and the gas storage tank 11 supplies air to the accommodating space, thereby increasing the air pressure in the accommodating space. At the same time, when the air pressure in the battery pack 200 is higher than the minimum value, the main interface 31 is disconnected from the first branch interface 32 to maintain the current air pressure in the battery pack 200; or, when the air pressure in the battery pack 200 is between the maximum value and the minimum value, the main interface 31 is disconnected from the first branch interface 32 to maintain the current air pressure in the battery pack 200.

[0038] In some embodiments of the present invention, Figure 1 As shown, the battery pack 200 includes a BMS (BATTERY MANAGEMENT SYSTEM), which is in communication with the solenoid valve 300. Thus, the BMS controls the connection or disconnection between the main interface 31 and the first branch interface 32 of the solenoid valve 300 according to the air pressure in the battery pack 200 to ensure the balance of air pressure inside and outside the battery pack 200, thereby further improving the reliability of the air path regulation system 1000.

[0039] In some embodiments of the present invention, Figure 1 As shown, the air supply unit 100 further includes a dryer 12. The inlet of the dryer 12 is connected to the external environment, and the outlet of the dryer 12 is connected to the inlet of the gas tank 11. Thus, the air from the external environment enters the gas tank 11 through the dryer 12, and the moisture in the air is removed by the dryer 12 to ensure the dryness of the gas entering the gas tank 11, so that the gas tank 11 delivers dry gas to the air spring unit and the accommodation space, avoiding insulation failures caused by water vapor entering the battery pack 200, thereby improving the reliability and safety of the battery pack 200.

[0040] In some embodiments of the present invention, Figure 1 As shown, the solenoid valve 300 further includes a second branch interface 33 , which is in communication with the inlet of the dryer 12 , and the main interface 31 is selectively in communication with the first branch interface 32 or the second branch interface 33 .

[0041] Therefore, when the air pressure in the battery pack 200 is lower than the minimum value, it is connected with the first branch interface 32 through the main interface 31, and the gas storage tank 11 supplies gas to the accommodating space, thereby increasing the air pressure in the accommodating space; when the air pressure in the battery pack 200 is higher than the maximum value, it is connected with the second branch interface 33 through the main interface 31, and the accommodating space is depressurized to the dryer 12, thereby reducing the air pressure in the accommodating space, and the rest is dried again and transported to the air outlet pipe through the dryer 12, further ensuring the dryness of the gas in the internal circulation closed route formed between the accommodating space and the air supply unit 100, further improving the reliability and safety of the gas path regulation system 1000, and when the air pressure in the battery pack 200 is lower than the maximum value, the main interface 31 is disconnected from the second branch interface 33 to maintain the current air pressure in the battery pack 200.

[0042] In some embodiments of the present invention, Figure 1 As shown, the air supply unit 100 also includes a filter assembly 13. The inlet of the filter assembly 13 is connected to the external environment, and the outlet of the filter assembly 13 is connected to the inlet of the dryer 12. As a result, the air from the external environment enters the gas storage tank 11 through the filter assembly 13 and the dryer 12 in sequence, and the dust, oil mist and other impurities in the gas are filtered out by the filter assembly 13, thereby ensuring the purity of the gas entering the dryer 12, avoiding the corrosion and damage of the air spring unit and the battery pack 200 by impurities, reducing the failure rate of the gas circuit regulation system 1000, and improving the reliability and service life of the gas circuit regulation system 1000.

[0043] In some embodiments of the present invention, Figure 1 As shown, the air supply unit 100 further includes an air compressor 14. The inlet of the air compressor 14 is connected to the outlet of the dryer 12, and the outlet of the air compressor 14 is connected to the inlet of the air tank 11. Thus, the air from the external environment is drawn into the air tank 11 through the air compressor 14 in sequence through the filter assembly 13, the dryer 12, and the air compressor 14, and the air compressor 14 compresses the dry and impurity-free gas into high-pressure gas and then transports it to the air tank 11 for storage, so that when the air spring unit or the accommodation space has an air supply demand, the air tank 11 can quickly supply air to the air spring unit or the accommodation space, thereby improving the reliability of the air path regulation system 1000.

[0044] In some embodiments of the present invention, Figure 1As shown, the solenoid valve 300 further includes a third branch interface 34, which is connected to the external environment, and the main interface 31 is optionally connected to the first branch interface 32, the second branch interface 33 or the third branch interface 34. Therefore, when the battery pack 200 is in thermal runaway, the main interface 31 is connected to the third branch interface 34 to enable the battery pack 200 to quickly release pressure to the outside, effectively reducing the risk of explosion of the battery pack 200 and improving the reliability and safety of the gas circuit regulation system 1000.

[0045] In some embodiments of the present invention, Figure 1 As shown, the solenoid valve 300 further includes a blocking port 35, and the main interface 31 is optionally connected to the first branch interface 32, the second branch interface 33, the third branch interface 34 or the blocking port 35. Therefore, when the air pressure in the battery pack 200 is between the highest value and the lowest value, the main interface 31 is connected to the blocking port 35, so as to maintain the current air pressure in the battery pack 200.

[0046] In some embodiments of the present invention, Figure 1 As shown, the battery pack 200 includes a BMS (BATTERY MANAGEMENT SYSTEM) and a pressure sensor, and the BMS is respectively connected to the pressure sensor and the solenoid valve 300. Therefore, the air pressure in the battery pack 200 is obtained through the pressure sensor, and the pressure sensor and the BMS are connected to each other through communication, so that the BMS can control the main interface 31 of the solenoid valve 300 to selectively connect or disconnect with the first branch interface 32 according to the air pressure in the battery pack 200 obtained in real time by the pressure sensor, so as to ensure the balance of air pressure inside and outside the battery pack 200, thereby further improving the reliability of the gas circuit regulation system 1000.

[0047] Furthermore, the solenoid valve 300 also includes a second branch interface 33, a third branch interface 34 and a plugging port 35. The BMS controls the main interface 31 of the solenoid valve 300 to selectively connect with the first branch interface 32, the second branch interface 33, the third branch interface 34 or the plugging port 35 according to the real-time acquisition of the air pressure in the battery pack 200 by the pressure sensor to ensure the balance of air pressure inside and outside the battery pack 200, thereby further improving the reliability of the air path regulation system 1000.

[0048] Compared with the existing battery packs that exchange gas with the outside environment through explosion-proof valves, in areas with high humidity or when conducting high temperature and high humidity experiments, the explosion-proof valve's waterproof and breathable membrane cannot filter water vapor, allowing a large amount of water vapor to enter the battery pack. After returning to the normal environment, the water vapor will condense into water, causing insulation failure of the battery pack. At the same time, as the battery pack's service life increases, the surface of the waterproof and breathable membrane may be blocked by filtered dust impurities, causing its balanced ventilation function to decrease or even fail.

[0049] Therefore, the main interface 31 of the solenoid valve 300 of the present application is optionally connected to the first branch interface 32, the second branch interface 33, the third branch interface 34 or the plugging port 35, so as to maintain the current air pressure in the battery pack 200. At the same time, the air from the external environment enters the gas storage tank 11 through the filter assembly 13 and the dryer 12 in sequence, and the dust, oil mist and other impurities in the gas are filtered out by the filter assembly 13, and the moisture in the air is removed by the dryer 12 to ensure the dryness and purity of the gas entering the gas storage tank 11, so that the gas storage tank 11 delivers dry and impurity-free gas to the battery pack 200, avoiding insulation and other faults caused by water vapor entering the battery pack 200, and improving the reliability and safety of the battery pack 200.

[0050] The following describes a vehicle according to an embodiment of the present utility model.

[0051] The vehicle according to the embodiment of the utility model includes an air path regulating system 1000 .

[0052] According to the vehicle of the embodiment of the utility model, an air circuit regulating system 1000 is provided, the air suspension has an air supply unit 100, and the battery pack 200 has a storage space, which can be optionally connected to the air supply unit 100 through the storage space, so as to achieve the balance of air pressure inside and outside the battery pack 200. At the same time, the battery pack 200 uses the air supply unit 100 of the air suspension to achieve the balance of air pressure inside and outside the battery pack 200, without adding other devices, thereby reducing the volume of the vehicle occupied by the air circuit regulating system 1000. In addition, through the internal circulation closed route formed between the storage space and the air supply unit 100, it is ensured that the gas in and out of the storage space of the battery pack 200 is free of impurities and is not polluted by the outside world, which effectively improves the reliability and safety of the vehicle.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. A gas path regulating system for a vehicle, characterized in that: include: an air suspension, the air suspension having an air supply unit; A battery pack, wherein the battery pack has a receiving space, and the receiving space is optionally connected to the air supply unit.

2. The gas path adjustment system according to claim 1, characterized in that: Also includes: A solenoid valve, wherein the solenoid valve comprises a main interface and a first branch interface, wherein the main interface is connected to the accommodating space, wherein the air supply unit comprises an air storage tank, wherein the air storage tank is used to store compressed air, wherein the first branch interface is connected to the outlet of the air storage tank, and wherein the main interface is optionally connected to the first branch interface.

3. The gas path adjustment system according to claim 2, characterized in that: The air supply unit also includes: A dryer, wherein the inlet of the dryer is communicated with the external environment, and the outlet of the dryer is communicated with the inlet of the gas storage tank.

4. The gas path regulating system according to claim 3, characterized in that: The solenoid valve further comprises a second branch interface, wherein the second branch interface is communicated with the inlet of the dryer, and the main interface is selectively communicated with the first branch interface or the second branch interface.

5. The gas path regulating system according to claim 3, characterized in that: The air supply unit also includes: A filter assembly, wherein the inlet of the filter assembly is communicated with the external environment, and the outlet of the filter assembly is communicated with the inlet of the dryer.

6. The gas path regulating system according to claim 3, characterized in that: The air supply unit also includes: An air compressor, wherein the inlet of the air compressor is communicated with the outlet of the dryer, and the outlet of the air compressor is communicated with the inlet of the air storage tank.

7. The gas path regulating system according to claim 4, characterized in that: The solenoid valve further includes a third branch interface, wherein the third branch interface is in communication with the external environment, and the main interface is selectively in communication with the first branch interface, the second branch interface or the third branch interface.

8. The gas path regulating system according to claim 7, characterized in that: The solenoid valve further comprises a blocking port, and the main port is optionally connected to the first branch port, the second branch port, the third branch port or the blocking port.

9. The gas path regulating system according to claim 2, characterized in that: The battery pack includes a BMS and a pressure sensor. The BMS is communicatively connected to the sensor and the solenoid valve respectively. The pressure sensor is located in the accommodation space.

10. A vehicle, characterized in that: It comprises a gas circuit regulating system according to any one of claims 1-9.

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