CN216597647U

CN216597647U - Temperature control housing for low temperature of fuel cell system and fuel cell system

Info

Publication number: CN216597647U
Application number: CN202123237806.7U
Authority: CN
Inventors: 郭晓亮; 原强; 崔天宇
Original assignee: Weishi Energy Technology Co Ltd
Current assignee: Weishi Energy Technology Co Ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-24
Anticipated expiration: 2031-12-21

Abstract

The utility model provides a low-temperature control housing for a fuel cell system and the fuel cell system, and relates to the technical field of fuel cells. The low-temperature control cover shell for the fuel cell system comprises a heating component and a shell; the shell is internally provided with a mounting seat for fixing the fuel cell and is provided with a pipeline through hole for connecting the fuel cell with the outside; the heating assembly is disposed on an inner wall of the housing. The fuel cell system comprises a fuel cell and a temperature control cover shell for low temperature of the fuel cell system; the fuel cell is disposed in a temperature-controlled enclosure for a low temperature of the fuel cell system. The technical effects of reducing the time of cold starting the vehicle and avoiding the tail drainage from being frozen are achieved.

Description

Temperature control housing for low temperature of fuel cell system and fuel cell system

Technical Field

The utility model relates to the technical field of fuel cells, in particular to a low-temperature control housing for a fuel cell system and the fuel cell system.

Background

The hydrogen fuel cell system is a power generation system which takes a fuel cell as a core and consists of a hydrogen supply and circulation system, an air supply system, a heat management system, an exhaust emission system, a control system and the like.

The proper operation temperature of the hydrogen fuel cell system is 70-80 ℃, and when the system exceeds the temperature, the system can generate local overheating, damage to the catalyst and other adverse effects on the galvanic pile; when the temperature of the fuel cell system is too low, the catalyst has low catalytic speed and low reaction efficiency, and the conditions of abnormally low voltage of the single cell and the like can also occur. Therefore, the starting process of the hydrogen fuel cell system at low temperature, which is referred to as the cold starting process for short, is one of the limitations of the development of the toggle fuel cell system in the low temperature region.

Moreover, when the vehicle on which the fuel cell system is mounted is directly exposed to a low-temperature environment, cold start takes a long time. In addition, the voltage fluctuation is easy to be large in the system load-pulling process, and the voltage of the single cell of the fuel cell system is abnormally lowered, so that the service life of the electric pile is influenced.

Therefore, it is an important technical problem to be solved by those skilled in the art to provide a temperature-controlled enclosure for a low temperature of a fuel cell system and a fuel cell system, which do not damage the fuel cell during cold start.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a temperature control cover shell for a low temperature of a fuel cell system and the fuel cell system, so as to solve the technical problem that the cold start in the prior art is easy to damage the fuel cell.

In a first aspect, an embodiment of the present invention provides a temperature control enclosure for a low temperature of a fuel cell system, including a heating assembly and a housing;

the shell is internally provided with a mounting seat for fixing the fuel cell and is provided with a pipeline through hole for connecting the fuel cell with the outside;

the heating assembly is disposed on an inner wall of the housing.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the housing includes a front plate, a rear plate, and four side plates;

the side plates are sequentially connected to form a columnar structure, and two open ends of the columnar structure are respectively connected with the front plate and the rear plate.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the front plate is further provided with a ventilation opening with an adjustable opening degree;

a temperature sensor is arranged in the shell and can control the opening degree of the ventilation opening.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the heating assembly includes a support plate and a heating element;

the heating member sets up in the backup pad, the backup pad sets up on the inner wall of casing, just the backup pad is provided with one side of heating member is kept away from the mount pad.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein a heat conductive silicone grease is disposed between the heating element and the supporting plate.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, where the number of the support plates is four;

the four supporting plates are respectively corresponding to the four side plates, and the four supporting plates are all provided with the heating elements.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the heating element is an electric heating wire.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein a flame retardant insulation board is disposed between the side board and the support board.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the pipeline through hole is formed in the rear plate;

the pipeline through hole comprises an air inlet, a tail discharge port, a cooling liquid inlet, a cooling liquid outlet and a hydrogen inlet.

In a second aspect, an embodiment of the present invention provides a fuel cell system, including a fuel cell and a temperature-controlled enclosure for low temperature of the fuel cell system;

the fuel cell is arranged in the temperature control cover shell for the low temperature of the fuel cell system.

Has the advantages that:

the embodiment of the utility model provides a temperature control housing for a low temperature of a fuel cell system, which comprises a heating component and a shell; the shell is internally provided with a mounting seat for fixing the fuel cell and is provided with a pipeline through hole for connecting the fuel cell with the outside; the heating assembly is disposed on an inner wall of the housing.

When the vehicle cold start, on-vehicle controller can control the heating element who sets up in the casing and carry out work to heating the fuel cell who sets up in the casing, thereby need not fuel cell self and generate heat, can not lead to the fact the harm to fuel cell, reduce cold start time. And the heat preservation of the fuel cell system is realized, the cold start waiting time does not need to be consumed again after the system is stopped for a short time, and the fuel cell system can be actively preheated by the pneumatic heating assembly to be started in advance before the system in a long-time shutdown state is started, so that the long waiting time is avoided.

The embodiment of the utility model provides a fuel cell system, which comprises a fuel cell and a temperature control cover shell for the low temperature of the fuel cell system; the fuel cell is disposed in a temperature-controlled enclosure for a low temperature of the fuel cell system. The fuel cell system has the above-described advantages over the prior art and will not be described herein in detail.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a temperature control enclosure for low temperature of a fuel cell system according to an embodiment of the present invention;

fig. 2 is a schematic view of a temperature-controlled enclosure for low temperature use in a fuel cell system according to an embodiment of the present invention;

fig. 3 is a side view of a temperature-controlled enclosure for low temperature use in a fuel cell system according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a partial enlarged view of the portion B in FIG. 4;

fig. 6 is a schematic diagram of a heating element in a temperature-controlled enclosure for low temperature of a fuel cell system according to an embodiment of the present invention.

Icon:

100-a heating assembly; 110-a support plate; 120-a heating element;

200-a housing; 210-a front plate; 220-a back plate; 230-side plate; 240-a vent; 241-ventilating door plate;

300-a conduit through hole;

400-flame-retardant insulation board.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Referring to fig. 1, 2, 3, 4, 5 and 6, an embodiment of the present invention provides a temperature-controlled enclosure for a low temperature of a fuel cell system, including a heating assembly 100 and a housing 200; a mounting seat for fixing the fuel cell is arranged in the shell 200, and a pipeline through hole 300 for connecting the fuel cell with the outside is formed in the shell 200; the heating assembly 100 is disposed on an inner wall of the housing 200.

When the vehicle cold starts, on-vehicle controller can control the heating element 100 that sets up in casing 200 and work to fuel cell to set up in casing 200 heats, thereby need not fuel cell self and generate heat, can not cause the harm to fuel cell, reduce cold start time. Moreover, the heat preservation of the fuel cell system is realized, the cold start waiting time does not need to be consumed again after the system is stopped for a short time, and the fuel cell system can be actively preheated by the pneumatic heating assembly 100 to be started in advance before the system in a long-time shutdown state is started, so that the long waiting time is avoided.

The housing 200 may be rectangular, and those skilled in the art may also select the shape of the housing 200 according to actual requirements, which is not described herein again.

Wherein, casing 200 can set to the formula of opening and close, and the later stage staff of being convenient for maintains fuel cell.

Referring to fig. 1 and 2, in an alternative of the present embodiment, a case 200 includes a front plate 210, a rear plate 220, and four side plates 230; the plurality of side plates 230 are sequentially connected to form a cylindrical structure, and both open ends of the cylindrical structure are connected to the front plate 210 and the rear plate 220, respectively.

Specifically, the housing 200 is formed by connecting a front plate 210, a rear plate 220 and four side plates 230, wherein the front plate 210, the rear plate 220 and the four side plates 230 may adopt a plate-shaped structure, and may also be changed in shape according to actual requirements, for example: arc plates and other plates with irregular shapes.

The mounting seat for fixing the fuel cell may be disposed on the side plate 230, or may be disposed on the front plate 210, and may be set by a person skilled in the art according to actual requirements.

Referring to fig. 1, in an alternative embodiment, the duct through-hole 300 is formed in the rear plate 220; the pipe through-hole 300 includes an air inlet, a tail discharge port, a coolant inlet, a coolant outlet, and a hydrogen inlet. Through each inlet and outlet of the pipeline through hole 300, pipelines of components such as a hydrogen supply system, a circulation system, an air supply system, a thermal management system, an exhaust emission system and the like can pass through, so that the connection between the fuel cell and vehicle body components outside the system is completed.

Referring to fig. 2 and 3, in an alternative of the present embodiment, a ventilation opening 240 with an adjustable opening degree is further formed on the front plate 210; a temperature sensor is provided in the housing 200, and the temperature sensor can control the opening degree of the vent 240.

Specifically, the front plate 210 is provided with an opening-adjustable ventilation opening 240, a temperature sensor is disposed in the housing 200, and the opening of the ventilation opening 240 is controlled by the temperature sensor, so as to adjust the intake air rate in the housing 200 and further adjust the temperature inside the housing 200.

Wherein, can set up vent 240 on front bezel 210, vent 240 department is provided with ventilation door plant 241 to be provided with power spare such as motor in casing 200, power spare is connected with ventilation door plant 241 through the driving medium, thereby the opening and shutting angle of control ventilation door plant 241 or the size that shelters from vent 240, thereby the aperture size of adjustment vent 240. The vehicle-mounted controller can control the working condition of the power part through the temperature sensor, so that the opening degree of the air vent 240 is controlled. In addition, a person skilled in the art may also select the structure for regulating the opening of the ventilation opening 240 according to the actual situation, and details are not described here.

Referring to fig. 4, 5 and 6, in an alternative of the present embodiment, a heating assembly 100 includes a support plate 110 and a heating member 120; the heating member 120 is disposed on the support plate 110, the support plate 110 is disposed on the inner wall of the housing 200, and the side of the support plate 110 where the heating member 120 is disposed is away from the mounting seat.

Specifically, the heating member 120 is disposed on the support plate 110, the support plate 110 is disposed in the housing 200, and the heating member 120 is opposite to the side wall, i.e., the support plate 110 is located between the fuel cell and the heating member 120, preventing the heating member 120 from directly heating against the fuel cell.

In addition, the thermal conductive silicone grease is disposed between the heating member 120 and the support plate 110, thereby improving thermal diffusion efficiency.

Wherein, the heating member 120 can adopt an electric heating wire, and a person skilled in the art can also select the type of the heating member 120 by himself according to actual requirements, which is not described herein again.

Referring to fig. 4, in an alternative embodiment, the number of the support plates 110 is four; the four support plates 110 correspond to the four side plates 230, respectively, and the heating members 120 are disposed on the four support plates 110.

Referring to fig. 4, in an alternative of the present embodiment, a flame retardant insulation board 400 is disposed between the side plate 230 and the support plate 110.

Specifically, through the setting of fire-retardant heated board 400, can avoid heat rapid transfer to reveal away on the casing 200 to can keep the problem in the casing 200 for a long time, if need adjust the temperature in the casing 200, can adjust the aperture size of vent 240.

In addition, through the setting of temperature sensor, can carry out active temperature compensation according to different user demand and ambient temperature of fuel cell system car, possess following three functions: the system has the functions of early standby in a normal mode, system heat preservation in a standard mode and early preheating in a reinforced mode.

Wherein, standby in advance in the normal mode: in the normal mode, the heating assembly 100 in the housing 200 does not work, but only depends on the heat generated during the normal operation of the system and the heat preservation effect of the flame-retardant heat preservation plate 400 to realize the temperature regulation of the area where the system is located. The built-in temperature sensor intervenes to work, and the controller controls the working state of the power part in real time according to the temperature in the housing, so that the opening degree of the ventilation opening 240 is adjusted, and the fuel cell works at a proper temperature.

And (3) system heat preservation in a standard mode: receive the instruction back of short time parking at the host computer of system, the ventilation regulation mouth is closed completely, the heat preservation function of certain degree can be realized on the flame-retardant heated board 400 layer of design itself, work is intervened to built-in temperature sensor simultaneously, realize the real-time supervision of the interior temperature of casing 200, when the temperature drops to the heating threshold value in casing 200, heating member 120 intervenes and carries out active temperature compensation, when the temperature rise in casing 200 is to the heating threshold value, stop the work of heating member 120, temperature sensor continues monitoring and controls opening of heating member 120 and stops, guarantee that fuel cell is in the ambient temperature condition that can start at any time.

Function of preheating system in advance in the enhanced mode: after the host computer of system received the instruction of short time parking, the ventilation adjusting port is closed completely, heating member 120 intervenes and carries out active temperature compensation, built-in temperature sensor realizes the real-time supervision of the interior temperature of casing 200, temperature in casing 200 is higher than and stops heating member 120 behind the preset temperature, temperature sensor continues the monitoring, when the temperature in casing 200 is less than the temperature condition of normal start, heating member 120 heats once more, thereby keep the interior temperature of casing 200 to satisfy the ambient temperature condition that the fuel cell system can normally start at any time always.

In conclusion, the low-temperature-control housing for the fuel cell system provided by the embodiment makes up for the defect of the lack of heat preservation capability of the traditional fuel cell system, and does not need to consume the cold start waiting time again after the system is stopped for a short time; the system in the long-time shutdown state can be started in advance through the active preheating system before being started, so that long waiting time is avoided, and extra electric energy consumption of the system is reduced.

Moreover, the temperature sensor is arranged in the temperature control cover for low temperature of the fuel cell system provided by the embodiment, active temperature compensation can be performed according to different use requirements and environmental temperatures of the fuel cell system automobile, and functions of early standby in a normal mode, system heat preservation in a standard mode and early preheating of the system in a reinforced mode are realized.

In addition, the fuel cell system that this embodiment provided is with accuse temperature housing through the heat preservation effect to the fuel cell system subassembly, has guaranteed that the water that the system produced can not freeze immediately at the tail row department, can realize the collection of discharge water and handle, concentrates the function of discharging. The situation that the road surface is iced and the vehicle slides due to the fact that water is directly discharged from the tail row is avoided.

The embodiment provides a fuel cell system, which comprises a fuel cell and a temperature control cover shell for low temperature of the fuel cell system; the fuel cell is disposed in a temperature-controlled enclosure for a low temperature of the fuel cell system.

Through the setting of fuel cell system low temperature with accuse temperature encloser, avoided fuel cell system directly to expose in external environment, the fuel cell system directly takes place the heat exchange with external environment, and the condition that the heat gived off is extremely fast. The preheating function of the fuel cell system can be quickly completed by using the low-power heater, and then the quick cold start function of the fuel cell automobile after long-time parking is realized.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A temperature-controlled enclosure for a fuel cell system at low temperatures, comprising: a heating assembly (100) and a housing (200);

a mounting seat for fixing the fuel cell is arranged in the shell (200), and a pipeline through hole (300) for connecting the fuel cell with the outside is formed in the shell (200);

the heating assembly (100) is disposed on an inner wall of the housing (200).

2. The temperature-controlled enclosure for low temperature of fuel cell system according to claim 1, wherein said housing (200) comprises a front plate (210), a rear plate (220) and four side plates (230);

the side plates (230) are sequentially connected to form a columnar structure, and two open ends of the columnar structure are respectively connected with the front plate (210) and the rear plate (220).

3. The temperature-controlled enclosure for the low temperature of the fuel cell system according to claim 2, wherein the front plate (210) further comprises an opening-adjustable ventilation opening (240);

a temperature sensor is arranged in the shell (200) and can control the opening degree of the vent (240).

4. The temperature-controlled enclosure for low temperature of fuel cell system according to claim 2, wherein the heating assembly (100) comprises a support plate (110) and a heating member (120);

the heating member (120) is arranged on the support plate (110), the support plate (110) is arranged on the inner wall of the shell (200), and one side of the support plate (110) provided with the heating member (120) is far away from the mounting seat.

5. The temperature-controlled enclosure for a low temperature of a fuel cell system according to claim 4, wherein a heat-conducting silicone grease is disposed between the heating member (120) and the support plate (110).

6. The temperature-controlled enclosure for a low temperature of a fuel cell system according to claim 5, wherein the number of the support plates (110) is four;

the four support plates (110) correspond to the four side plates (230) respectively, and the four support plates (110) are provided with the heating members (120).

7. The temperature-controlled enclosure for low temperature of fuel cell system according to claim 4, wherein the heating member (120) is an electric heating wire.

8. The temperature-controlled enclosure for a low temperature of a fuel cell system according to claim 4, wherein a flame-retardant insulation board (400) is disposed between the side plate (230) and the support plate (110).

9. The temperature-controlled enclosure for low temperature of fuel cell system according to claim 2, wherein the pipe through hole (300) is opened on the rear plate (220);

the pipeline through hole (300) comprises an air inlet, a tail discharge port, a cooling liquid inlet, a cooling liquid outlet and a hydrogen inlet.

10. A fuel cell system comprising a fuel cell and the temperature-controlled enclosure for low temperature use of the fuel cell system according to any one of claims 1 to 9;