Vehicle power system and vehicle

Abstract

An embodiment of the present application provides a vehicle power system, including: a supercapacitor DC / DC converter, arranged in a first chamber; a hydrogen storage device, arranged in a second chamber; wherein the first chamber and the second chamber are connected through a heat exchange channel, and a temperature-controlled sensing valve for controlling the opening or closing of the heat exchange channel is arranged in the heat exchange channel; an embodiment of the present application also provides a vehicle, including: a vehicle body, in which a vehicle power system is arranged; in this way, when the supercapacitor DC / DC converter is in use, the temperature in the space in which it is located will increase, and through the use of the hydrogen storage device, the temperature in the space in which it is located will decrease. By arranging the hydrogen storage device close to the supercapacitor DC / DC converter, the supercapacitor DC / DC converter can avoid a high temperature during operation. At the same time, the supercapacitor DC / DC converter can be more accurately controlled to be at a suitable operating temperature through the heat exchange channel, thereby ensuring the working efficiency of the supercapacitor DC / DC converter.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle power system and a vehicle. Background Art

[0002] When hydrogen-powered vehicles are in use, supercapacitor DC / DC converters on hydrogen-powered vehicles are often used to convert electrical energy, thereby providing electrical energy to the drive motor. However, when the supercapacitor DC / DC converters in the current vehicle power system are in use, because they are in a relatively independent and closed space, the ambient temperature of the supercapacitor DC / DC converter is easily increased due to the influence of the supercapacitor DC / DC converter, which causes the supercapacitor DC / DC converter to fail to be at a relatively suitable operating temperature when in use, resulting in poor use of the supercapacitor DC / DC converter. Summary of the invention

[0003] The present application aims to at least to some extent solve the technical problem of the supercapacitor DC / DC converter having too high a temperature when in use. To this end, the present application provides a vehicle power system and a vehicle.

[0004] The present application provides a vehicle power system, the vehicle power system comprising:

[0005] A supercapacitor DC / DC converter is disposed in the first chamber;

[0006] A hydrogen storage device is disposed in the second chamber;

[0007] The first chamber and the second chamber are connected via a heat exchange channel, and a temperature-controlled sensing valve for controlling the opening or closing of the heat exchange channel is provided in the heat exchange channel.

[0008] In an embodiment of the present application, the temperature-controlled sensing valve includes a temperature sensor, and the temperature sensor is disposed in the first chamber or in the first chamber and the second chamber respectively.

[0009] In an embodiment of the present application, the vehicle power system further includes:

[0010] An accommodating chamber, wherein a heat-insulating partition plate is disposed in the accommodating chamber, and the accommodating chamber is divided into the first chamber and the second chamber by the heat-insulating partition plate;

[0011] Wherein, the heat exchange channel is opened on the heat insulation partition plate.

[0012] In an embodiment of the present application, the vehicle power system includes an engine, a drive motor, a power battery and a supercapacitor, and the hydrogen storage device, the engine, the supercapacitor, the supercapacitor DC / DC converter, the power battery and the drive motor are connected in sequence.

[0013] The present application also provides a vehicle, the vehicle comprising:

[0014] A vehicle body is provided with a vehicle power system.

[0015] In an embodiment of the present application, the vehicle body includes a rear compartment and a frame bottom compartment, the supercapacitor DC / DC converter of the vehicle power system is arranged in the frame bottom compartment, and the hydrogen storage device of the vehicle power system is arranged in the rear compartment.

[0016] In an embodiment of the present application, the thermal insulation partition plate of the automobile power system is arranged between the rear compartment and the frame bottom compartment, and a temperature control sensing valve for controlling the connection or closing of the rear compartment and the frame bottom compartment is arranged on the thermal insulation partition plate.

[0017] In the embodiment of the present application, a supercapacitor is also provided in the rear cabin;

[0018] The hydrogen storage device includes a first hydrogen storage component and a second hydrogen storage component, which are staggered from the bottom to the top of the rear cabin, wherein the first hydrogen storage component is arranged opposite to the first side of the supercapacitor, and the second hydrogen storage component is arranged opposite to the second side of the supercapacitor.

[0019] In the embodiment of the present application, a power battery is also arranged in the bottom compartment of the frame;

[0020] The vehicle body also includes a front cabin, and the engine and drive motor of the vehicle power system are arranged in the front cabin, and the hydrogen storage device, the engine, the supercapacitor, the supercapacitor DC / DC converter, the power battery and the drive motor are connected in sequence.

[0021] In an embodiment of the present application, the supercapacitor DC / DC converter is fixedly installed in the bottom compartment of the frame through a rectangular frame, wherein a protective cover plate is provided at the bottom of the rectangular frame, and the supercapacitor DC / DC converter is provided in the rectangular frame by being provided on the protective cover plate.

[0022] An embodiment of the present application provides a vehicle power system, which includes: a supercapacitor DC / DC converter, which is arranged in a first chamber; a hydrogen storage device, which is arranged in a second chamber; wherein the first chamber and the second chamber are connected through a heat exchange channel, and a temperature-controlled sensing valve for controlling the opening or closing of the heat exchange channel is arranged in the heat exchange channel; an embodiment of the present application also provides a vehicle, which includes: a vehicle body, in which a vehicle power system is arranged; in this way, when the supercapacitor DC / DC converter is in use, the temperature in the space in which it is located will increase, and through the use of the hydrogen storage device, the temperature in the space in which it is located will decrease. By arranging the hydrogen storage device close to the supercapacitor DC / DC converter, the temperature of the supercapacitor DC / DC converter can be avoided from being high during operation. At the same time, the supercapacitor DC / DC converter can be more accurately controlled to be at a suitable operating temperature through the heat exchange channel, thereby ensuring the working efficiency of the supercapacitor DC / DC converter. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 is a module schematic diagram of a vehicle power system provided by an embodiment of the present application;

[0025] Figure 2 It is a schematic diagram of the structure of a vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides various specific examples of processes and materials, but those of ordinary skill in the art may recognize the application of other processes and / or the use of other materials.

[0028] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0029] The present application embodiment provides a vehicle power system, such as Figure 1 and 2 As shown, it is a structural schematic diagram of a vehicle power system, which includes a hydrogen storage device 3 and a supercapacitor DC / DC converter 1. The hydrogen storage device 3 is used to store hydrogen, and when the vehicle power system is working, the hydrogen is transported to the fuel cell engine 61, so that a chemical reaction occurs in the fuel cell engine 61 to generate electricity. The hydrogen storage device 3 can be a container with a hydrogen storage function, and the hydrogen storage device 3 is fixedly arranged in the second chamber 4, wherein the second chamber 4 can be a space on the vehicle for installing the hydrogen storage device 3. The supercapacitor DC / DC converter 1 is used to receive, store and release electrical energy, thereby providing a power source to the vehicle power system. The supercapacitor DC / DC converter 1 is fixedly arranged in the first chamber 2, wherein the first chamber 2 can be a space on the vehicle for installing the supercapacitor DC / DC converter 1.

[0030] Among them, when the supercapacitor DC / DC converter 1 is in use, the high ambient temperature will have a certain impact on the efficiency of the supercapacitor DC / DC converter 1. At the same time, the supercapacitor DC / DC converter 1 will generate a certain amount of heat during operation, which will increase the temperature in the space where the supercapacitor DC / DC converter 1 is located, affecting the working efficiency of the supercapacitor DC / DC converter 1. Therefore, in the embodiment of the present application, it is necessary to cool down the first chamber 2 to ensure that the supercapacitor DC / DC converter 1 is in a working environment with a more suitable temperature.

[0031] Since the hydrogen in the hydrogen storage device 3 can be used as a cooling medium, the second chamber 4 can be cooled down during the process of transporting hydrogen in the second chamber 4 through the hydrogen storage device 3 during use. Therefore, the embodiment of the present application connects the first chamber 2 and the second chamber 4 so that heat exchange can occur between the first chamber 2 and the second chamber 4, thereby avoiding excessive temperature in the first chamber 2, which affects the use of the supercapacitor DC / DC converter 1. For example, in some embodiments, the first chamber 2 and the second chamber 4 are both boxes with an opening on one side, wherein the opening of the first chamber 2 and the opening of the second chamber 4 can be directly connected by direct bonding, or can be indirectly connected by connecting other connectors, wherein the channel between the opening of the first chamber 2 and the opening of the second chamber 4 can be a heat exchange channel 51.

[0032] Among them, when the first chamber 2 is always connected to the second chamber 4 through the heat exchange channel 51, if the temperature in the second chamber 4 is too low, the temperature in the first chamber 2 is also too low through heat exchange, so that the supercapacitor DC / DC converter 1 is not in a suitable ambient temperature when in use, which may also affect the use of the supercapacitor DC / DC converter 1. Therefore, in the embodiment of the present application, a temperature-controlled sensing valve 52 for controlling the opening or closing of the heat exchange channel 51 is provided in the heat exchange channel 51. When the temperature-controlled sensing valve 52 is in use, it can control the opening, closing and opening degree of the heat exchange channel 51 by monitoring the temperature in the first chamber 2. Thereby, it is convenient to control the temperature in the first chamber 2. In some embodiments, the temperature control sensing valve 52 may include a temperature sensor, which is used to sense temperature. The temperature sensor can be set in the first chamber 2 to detect the temperature of the working environment of the supercapacitor DC / DC converter 1, and the detected temperature of the working environment of the supercapacitor DC / DC converter 1 is compared with the set threshold temperature suitable for the operation of the supercapacitor DC / DC converter 1, so as to control the opening, closing and opening degree of the temperature control sensing valve 52. It can also be set in the first chamber 2 and the second chamber 4 respectively, and the opening, closing and opening degree of the temperature control sensing valve 52 are controlled by comparing the temperature in the first chamber 2 and the temperature in the second chamber 4, so that the supercapacitor DC / DC converter 1 is at a suitable working temperature.

[0033] In some embodiments, in order to more accurately ensure that the supercapacitor DC / DC converter 1 is operating at a suitable working environment temperature and avoid being affected by the outside world, especially by the second chamber 4 when it is not necessary, a heat-insulating partition plate 5 is arranged in the placement cavity. The heat-insulating partition plate 5 is used to avoid heat exchange between the first chamber 2 and the second chamber 4 when the heat exchange channel 51 is closed. The material of the heat-insulating partition plate 5 can be a thermal insulation material. For example, in an embodiment of the present application, in a cabin of a car, the cabin is divided into a first cavity and a second cavity by arranging the heat-insulating partition plate 5 in the cabin, wherein a heat exchange channel 51 is opened on the heat-insulating partition plate 5, and a temperature-controlled sensing valve 52 is arranged in the heat exchange channel 51.

[0034] In some embodiments, the vehicle power system further includes an engine 61, a drive motor 62, a power battery 63 and a super capacitor 64, wherein the hydrogen storage device 3, the engine 61, the super capacitor 64, the super capacitor DC / DC converter 1, the power battery 63 and the drive motor 62 are connected in sequence, and the engine 61 can be a fuel cell engine 61. When in use, the hydrogen storage device 3 stores hydrogen and delivers the hydrogen to the fuel cell engine 61, the hydrogen undergoes a chemical reaction in the fuel cell engine 61 to generate electrical energy, and then the electrical energy is delivered to the super capacitor 64, the super capacitor 64 adjusts the electrical energy to direct current output through the super capacitor 64 DC / DC, and finally provides power through the power battery 63 and the drive motor 62.

[0035] The present application also provides a vehicle, such as Figure 1 and 2 As shown, it is a schematic diagram of the structure of a vehicle, which includes a vehicle body 7, and the vehicle body 7 can be a fuel cell vehicle. The vehicle body 7 is provided with a front cabin 73, a rear cabin 71 and a frame bottom, wherein an engine 61 and a drive motor 62 are arranged in the front cabin 73 of the vehicle body 7, a hydrogen storage device 3 and a supercapacitor 64 are arranged in the rear cabin 71 of the vehicle body 7, a power battery 63 and a supercapacitor DC / DC converter 1 are arranged in the frame bottom cabin 72 of the vehicle body 7, and the frame bottom cabin 72 can be a space at the bottom of the frame for installing the power battery 63 and the supercapacitor DC / DC converter 1, wherein the supercapacitor DC / DC converter 1 is arranged near the rear cabin 71 of the vehicle body 7, and the power battery 63 is arranged near the front cabin 73 of the vehicle body 7 relative to the supercapacitor DC / DC converter 1.

[0036] Among them, in the embodiment of the present application, the rear cabin 71 of the vehicle body 7 can be the second chamber 4, the frame bottom cabin 72 can be the first chamber 2, the supercapacitor DC / DC converter 1 can be fixed in the first chamber 2 by means of a fixing bracket or the like, and the hydrogen storage device 3 can be fixed in the second chamber 4 by means of a fixing bracket or the like, wherein a heat exchange channel 51 is opened on the heat insulating partition plate 5, and a temperature control sensing valve 52 is arranged in the heat exchange channel 51.

[0037] Among them, in the embodiment of the present application, the hydrogen storage device 3 includes a first hydrogen storage component 31 and a second hydrogen storage component 32. The first hydrogen storage component 31 and the second hydrogen storage component 32 can both be hydrogen bottles for storing hydrogen. Since the first hydrogen storage component 31 and the second hydrogen storage component 32 occupy a large space, the first hydrogen storage component 31 is arranged below the supercapacitor 64, and the second hydrogen storage component 32 is arranged on one side of the supercapacitor 64, so that the layout of the entire rear cabin 71 is more reasonable.

[0038] Among them, in the embodiments of the present application, Figure 1 and 2As shown, the power battery 63 and the supercapacitor DC / DC converter 1 are installed in the frame bottom compartment 72; the supercapacitor DC / DC converter 1 can be fixedly installed in the frame bottom compartment 72 through a rectangular frame 8, the rectangular frame 8 is fixed in the frame bottom compartment 72, and the supercapacitor DC / DC converter 1 and the rectangular frame 8 are connected by screws; a protective cover plate can be provided at the bottom of the rectangular frame 8, and the supercapacitor DC / DC converter 1 is provided in the rectangular frame 8 by being provided on the protective cover plate. The protective cover plate can protect the supercapacitor DC / DC converter 1 and prevent external foreign objects from impacting the supercapacitor DC / DC converter 1.

[0039] In some embodiments, a waterproof cover may be installed between the supercapacitor DC / DC converter 1 and the wiring harness to ensure the water safety of the supercapacitor DC / DC converter 1 .

[0040] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of the present application, 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" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0043] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0046] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0047] Although the embodiments of the present application 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 application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A vehicle, characterized in that: The vehicle comprises: A vehicle body (7), wherein a vehicle power system is arranged in the vehicle body (7); The vehicle body (7) comprises a rear compartment (71) and a frame bottom compartment (72), a supercapacitor DC / DC converter (1) of the vehicle power system is arranged in the frame bottom compartment (72), and a hydrogen storage device (3) of the vehicle power system is arranged in the rear compartment (71); The heat-insulating partition plate (5) of the vehicle power system is arranged between the rear compartment (71) and the frame bottom compartment (72); a heat exchange channel (51) is provided on the heat-insulating partition plate (5); the rear compartment (71) and the frame bottom compartment (72) are connected via the heat exchange channel (51); and a temperature-controlled sensing valve (52) for controlling the connection or closing of the rear compartment (71) and the frame bottom compartment (72) is provided on the heat-insulating partition plate (5); A super capacitor (64) is also arranged in the rear cabin (71); The hydrogen storage device (3) comprises a first hydrogen storage component (31) and a second hydrogen storage component (32), wherein the first hydrogen storage component (31) and the second hydrogen storage component (32) are arranged in a staggered manner from the bottom to the top of the rear compartment (71), wherein the first hydrogen storage component (31) is arranged opposite to a first side surface of the supercapacitor (64), and the second hydrogen storage component (32) is arranged opposite to a second side surface of the supercapacitor (64).

2. The vehicle according to claim 1, characterized in that The temperature control sensing valve (52) comprises a temperature sensor, and the temperature sensor is arranged in the frame bottom compartment (72) or is respectively arranged in the frame bottom compartment (72) and in the rear compartment (71).

3. The vehicle according to claim 1, characterized in that The vehicle power system comprises an engine (61), a drive motor (62), a power battery (63) and a super capacitor (64), wherein the hydrogen storage device (3), the engine (61), the super capacitor (64), the super capacitor DC / DC converter (1), the power battery (63) and the drive motor (62) are connected in sequence.

4. The vehicle according to claim 1, characterized in that A power battery (63) is also arranged in the vehicle frame bottom compartment (72); The vehicle body (7) also includes a front compartment (73), the engine (61) and the drive motor (62) of the vehicle power system are arranged in the front compartment (73), and the hydrogen storage device (3), the engine (61), the supercapacitor (64), the supercapacitor DC / DC converter (1), the power battery (63) and the drive motor (62) are connected in sequence.

5. The vehicle according to claim 1, characterized in that The supercapacitor DC / DC converter (1) is fixedly mounted in the vehicle frame bottom compartment (72) via a rectangular frame (8), wherein a protective cover plate is provided at the bottom of the rectangular frame (8), and the supercapacitor DC / DC converter (1) is arranged in the rectangular frame (8) by being arranged on the protective cover plate.

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