CN113757551A

CN113757551A - Power module, carrier and safety management method of power module

Info

Publication number: CN113757551A
Application number: CN202110924667.0A
Authority: CN
Inventors: 李然; 邓飞
Original assignee: Shenzhen Cone Technology Co ltd
Current assignee: Shenzhen Cone Technology Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2021-12-07

Abstract

The invention relates to the technical field of gas storage containers, and provides a power module, a carrier and a safety management method of the power module. The carrier comprises a carrier body and the power module. Compared with the prior art, the power module and the carrier with the power module provided by the invention have the advantages that the requirements of the gas storage cylinder on the design of the vehicle body structure are greatly reduced and the space utilization rate is improved by reducing the diameter of the element of the single gas storage cylinder and matching the configuration mode of the space in the passenger vehicle; the design and forming process difficulty of the fiber laying layer can be reduced, the using amount of the carbon fiber can be reduced to a certain degree, and the gas storage density of the gas storage bottle is reduced.

Description

Power module, carrier and safety management method of power module

Technical Field

The invention belongs to the technical field of gas storage containers, and particularly relates to a power module, a carrier and a safety management method of the power module.

Background

With the development of vehicles such as vehicles and ships, more and more vehicles are using power modules other than traditional fuels such as gasoline and diesel oil, and among them, vehicles using environment-friendly fuels such as hydrogen as power sources are receiving attention.

Taking a fuel cell vehicle as an example, a fuel cell passenger vehicle currently adopts a large-diameter gas storage cylinder (the diameter is about 400mm, and the stored gas is hydrogen), the volume is large, the actual space utilization rate is low, and a special vehicle body design is needed. In addition, because a large-diameter gas storage cylinder needs a thicker fiber layer as an actual bearing layer, the main problem is that the design of the layer, including the winding angle, the thickness of the layer, the selection of epoxy resin, the impregnation process and the like, increases the process complexity with the increase of the thickness. The above problems all result in high cost of the gas storage cylinder, and limit the mass production of the fuel cell vehicle.

Disclosure of Invention

The invention aims to provide a power module, a carrier and a safety management method of the power module, and aims to solve the technical problems that the gas cylinder is low in space utilization rate and high in process complexity due to the fact that the diameter of the gas cylinder is too large in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that:

on the one hand, this application embodiment provides a power module for be connected with the energy conversion subassembly, and do the energy conversion subassembly air feed, power module include at least a set of gas bomb group, gas bomb group includes gas bomb and coupling assembling, gas bomb group has two at least the gas bomb, every group in the gas bomb group each pass through between the gas bomb coupling assembling communicates each other, gas bomb group and/or the gas bomb is according to predetermined mode permutation and combination.

Optionally, the preset manner includes a rectangular array between the gas cylinders of each group of the gas cylinder groups; alternatively, the first and second electrodes may be,

the gas storage cylinders of each group of the gas storage cylinder groups are arranged in a staggered manner; alternatively, the first and second electrodes may be,

the gas storage cylinders of each group of gas storage cylinder groups are respectively arrayed or mutually staggered to form a square shape, a cylindrical shape or an irregular shape.

Optionally, the gas bomb that adjacent setting in the gas bomb group passes through coupling assembling end to end in proper order.

Optionally, the connecting assembly is a connecting hose, and the material of the connecting hose is selected from one of polytetrafluoroethylene, nylon, or high density polyethylene.

Optionally, the gas cylinder set further comprises a safety valve, and the safety valve is connected to the gas cylinder and used for controlling the gas cylinder set to supply gas to the energy conversion assembly.

Optionally, the gas cylinder group further comprises a housing, and the gas cylinder is located in an inner cavity of the housing.

Optionally, the gas cylinder group further comprises a gas sensor connected to the safety valve and configured to detect an operating state of the gas cylinder and/or the gas cylinder group.

Optionally, the gas sensor includes a first gas sensor and a second gas sensor connected to the safety valve, the first gas sensor is disposed inside the gas cylinder and is configured to detect an operating state of the gas cylinder, and the second gas sensor is disposed inside the housing and is configured to detect an operating state of the gas cylinder group.

Optionally, the gas storage cylinder group further comprises a gas exhaust assembly, the gas exhaust assembly is connected to the housing, the gas exhaust assembly is connected to the gas sensor, and exhausts the gas in the inner cavity of the housing based on the detection information of the gas sensor.

Optionally, the power module further includes a communicating pipe assembly, and when more than two gas cylinder groups are provided, each gas cylinder group is connected to the communicating pipe assembly and communicated with the energy conversion assembly through the communicating pipe assembly.

Optionally, the communicating pipe assembly comprises a communicating pipe and a communicating valve, the communicating pipe is connected to the energy conversion assembly, and ports of the communicating valve are respectively connected to the communicating pipe and the gas cylinder group, so that the gas cylinder assembly is communicated with the communicating pipe.

Optionally, the communication pipeline is a metal pipe, and the metal pipe is made of aluminum alloy or stainless steel.

Optionally, the outer diameter of each gas cylinder is 50mm to 240mm, and the length-diameter ratio is greater than or equal to 4; and/or at least one of the gas cylinders has an outer diameter or/and a length different from the other gas cylinders.

On the other hand, the embodiment of the application also provides a carrier, which comprises a carrier body and the power module.

Optionally, the vehicle is a vehicle, the energy conversion assembly is a fuel cell, and the gas stored in the power module is hydrogen.

On the other hand, the embodiment of the present application further provides a safety management method for a power module, which is used for managing the power module, and includes the following steps:

the first gas sensor detects the working state of the gas cylinder, if the first gas sensor detects that the gas cylinder works abnormally, the safety valve controls to close a gas cylinder group where the gas cylinder is located, and the gas cylinder group stops supplying gas to the energy conversion assembly;

and/or the second gas sensor detects the working state of the gas storage bottle group, if the second gas sensor detects that leaked gas exists in the inner cavity of the shell, the safety valve controls to close the gas storage bottle group, the gas storage bottle group stops supplying gas to the energy conversion assembly, and the gas exhaust assembly exhausts the gas in the inner cavity of the shell.

Compared with the gas storage bottle in the prior art, the power module for the carrier is a small-diameter gas storage bottle. The gas storage cylinder has the advantages that the diameter of a single gas storage cylinder element is reduced, and the configuration mode of the space in the passenger car is matched, so that the requirement of the gas storage cylinder on the structural design of the car body is greatly reduced, and the space utilization rate is improved. Due to the reduction of the diameter, according to the relation between the tensile strength, the inner diameter and the bearing pressure of the bearing layer material and the thickness of the bearing layer, the thickness of the bearing layer of the small-diameter gas storage bottle can be reduced compared with the thickness of the large-diameter gas storage bottle. Moreover, the seal head of the large-diameter gas storage cylinder is thick due to resin accumulation, and the utilization rate of fiber strength is low; and the reduction of the thickness of the fiber layering also improves the accumulation phenomenon of the resin at the end socket and improves the strength utilization rate of the fiber at the end socket. The improvement can not only reduce the difficulty of the design and forming process of the fiber laying layer, but also reduce the using amount of the carbon fiber to a certain extent and reduce the gas storage density of the gas storage bottle.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a first arrangement of a power module for a vehicle according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a second arrangement of a power module for a vehicle according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a third arrangement of a power module for a vehicle according to an embodiment of the present invention;

fig. 4 is a schematic control structure diagram of a power module according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-gas storage cylinder group; 11-gas storage cylinder; 12-a connecting assembly; 13-a safety valve; 14-a first gas sensor; 15-a second gas sensor; 16-a gas exhaust assembly; 2-a communicating pipe assembly; 21-a communication pipeline; 22-communication valve.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

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 implicitly indicating 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 application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1, a power module for a vehicle for storing fuel gas, such as hydrogen, methane gas, ethanol, natural gas, liquefied petroleum gas, etc., which can be connected to and supply gas to an energy conversion assembly of the vehicle, is described. For example, when the power module of this embodiment is applied to a hydrogen energy vehicle, the gas stored in the power module is hydrogen, and the energy conversion component of the vehicle may be a fuel cell, in the fuel cell system, the power module of this embodiment mainly stores high-pressure hydrogen, the working pressure may be 20MPa to 75MPa, and the hydrogen of the power module may be supplied to the fuel cell through a pipeline of the vehicle, and reacts with air under the action of a catalyst to convert chemical energy into electric energy and supply power. For convenience of explanation, the present embodiment and the present embodiment will be described by taking an example in which the power module is applied to a hydrogen-powered vehicle, but this is not a specific limitation of the present application.

Referring to fig. 1, the power module of the present embodiment further includes at least one gas cylinder set 1, where the gas cylinder set 1 includes gas cylinders 11 and a connecting assembly 12, each gas cylinder 11 has at least two gas cylinders 11, and the gas cylinders 11 in each gas cylinder set 1 can be communicated with each other through the connecting assembly 12, so that the gas cylinder set 1 can form a "gas reservoir" through the communicated gas cylinders 11. Specifically, when the power module of this embodiment is applied to various carriers, the gas cylinder group 1, the gas cylinder 11, or the gas cylinder 11 and the gas cylinder group 1 may be arranged and combined according to a preset manner according to the conditions such as the type of the carrier, so that the power module of this embodiment can be adapted to carriers of different types and sizes.

In the concrete application, the power module of this embodiment utilizes gas cylinder group 1 to combine in order to form gas cylinder group 1, and according to the particular case of carrier again, selects the gas cylinder group 1 of suitable quantity to supply air for the carrier, compares with current technical scheme who adopts jumbo size gas cylinder 11, and current hydrogen energy vehicle generally adopts major diameter gas cylinder 11 (diameter about 400mm, through the fibre winding resin inner bag), and its volume is great, and actual space utilization is lower, leads to needing dedicated automobile body design. Moreover, since the large diameter gas cylinder 11 needs a thicker fiber layer as the actual bearing layer, the main problem is that the design of the layer, including the winding angle, the thickness of the layer, the selection of epoxy resin and the impregnation process, increases the process complexity with the increase of the thickness. The above problems all result in high cost of the gas cylinder 11, limiting mass production of fuel cell vehicles. In the gas cylinder 11 of the embodiment of the present application, the gas cylinder 11 is a small-diameter gas cylinder 11, compared to the gas cylinder 11 of the prior art. The gas storage bottle has the advantages that the diameter of the element of the single gas storage bottle 11 is reduced, and the configuration mode of the space in the passenger car is matched, so that the requirement of the gas storage bottle 11 on the design of the car body structure is greatly reduced, and the space utilization rate is improved. Due to the reduction of the diameter, it can be known that the thickness of the pressure bearing layer of the small-diameter gas cylinder 11 can be reduced compared with the thickness of the large-diameter gas cylinder 11 according to the relationship between the tensile strength, the inner diameter and the pressure bearing layer material and the thickness of the pressure bearing layer. For example, for a 400mm cylinder 11, the carbon fiber layer needs to be about 30mm thick, whereas for a 100mm small diameter cylinder 11, the carbon fiber layer needs to be about 6mm thick. Moreover, the seal head of the large-diameter gas cylinder 11 is thick due to resin accumulation, and the utilization rate of fiber strength is low; and the reduction of the thickness of the fiber layering also improves the accumulation phenomenon of the resin at the end socket and improves the strength utilization rate of the fiber at the end socket. The improvement can not only reduce the difficulty of the design and forming process of the fiber laying layer, but also reduce the using amount of the carbon fiber to a certain extent and reduce the gas storage density of the gas storage bottle 11.

In one embodiment, when the gas cylinder sets 1 are provided with more than two sets, the arrangement may be performed according to the following predetermined manner. Referring to fig. 1, the predetermined pattern may include a rectangular array between the gas cylinders 11 of each gas cylinder set 1, and specifically, the gas cylinders 11 of each gas cylinder set 1 may be arranged in a "one-line" shape, and the adjacent gas cylinder sets 1 are arranged in parallel at intervals, so that the gas cylinders 11 may be arranged in a matrix manner, for example, 3X4, 4X4, and the like. For example, the gas cylinders 11 of adjacent gas cylinder groups 1 may be stacked in a one-to-one correspondence or staggered one from another, for example, the first gas cylinder 11 of the second gas cylinder group 1 is stacked in a one-to-one correspondence with the first gas cylinder 11 of the first gas cylinder group 1. Through such design, can make each gas bomb group 1 of group arrange in the inside of carrier regularly, the inside limited and relative regular space of make full use of carrier improves the carrier's air-carrying capacity.

Or, referring to fig. 2, the gas cylinders 11 of each gas cylinder set 1 may be arranged in a staggered manner, specifically, in this embodiment, the gas cylinders 11 of each gas cylinder set 1 may still be arranged in a "straight" manner, but the gas cylinders 11 of adjacent gas cylinder sets 1 are staggered with each other. For example, the first gas cylinder 11 of the second gas cylinder set 1 is staggered and stacked in the gap formed between the first gas cylinder 11 of the first gas cylinder set 1 and the second gas cylinder 11, and the space utilization rate of the power module for the carrier can be further improved by adopting the staggered and stacked mode. The number of the gas cylinders 11 contained in each gas cylinder group 1, the diameter of the gas cylinders 11 and the length-diameter ratio of the gas cylinders 11 can be the same or different, and can be specifically selected according to the size and the shape of the placing space; for example, when the number of the gas cylinders 11 in each gas cylinder group 1 is the same, the gas cylinders 11 may be stacked in a one-to-one correspondence manner to form a rectangular cross section; when the number of the gas cylinders 11 in each gas cylinder group 1 is different, the gas cylinders 11 may be stacked in a staggered manner to form a rectangular cross section or other regular or irregular cross section.

Or, the gas cylinders 11 of each group of gas cylinder groups 1 are respectively arranged in an array or staggered manner to form a square, cylindrical or irregular shape, specifically, the gas cylinders 11 of each group of gas cylinder groups 1 can be independently arranged in a square or cylindrical shape, and each group of gas cylinders 11 is communicated to the energy conversion assembly. In a specific application, due to different carriers, in order to improve the utilization rate of the carrier space as much as possible, the shape formed by the gas cylinder set 1 may be various irregular shapes, such as the shape shown in fig. 3, it should be explained that the irregular shape described in the present embodiment generally refers to an irregular pattern other than a regular geometric figure, such as a circle, a rectangle, or a triangle.

In the present embodiment, the shape of the array of the gas cylinders 11 may refer to a projected shape of the array of the gas cylinders 11, or may refer to an outline of the outer portion of the array of the gas cylinders 11. Of course, in other embodiments, the gas cylinder sets 1 and the gas cylinders 11 may be arranged in other suitable ways according to the specific situation of the carrier. In specific applications, multiple gas cylinders 11 and gas cylinder sets 1 may be arranged in the same carrier, and the embodiment is not limited thereto.

In this embodiment, the power module for a vehicle includes a plurality of gas cylinders 11 arranged in an array, the plurality of gas cylinders 11 are divided into a plurality of gas cylinder groups 1, the gas cylinders 11 in each gas cylinder group 1 are arranged side by side at intervals and are sequentially communicated, and the axes of the plurality of gas cylinders 11 are parallel to each other; the outer diameter of each gas cylinder 11 is 50mm-240mm, and the length-diameter ratio is greater than or equal to four. The gas storage bottle 11 adopts a metal end socket with a resin inner container and a bottle valve seat integrated, or the resin inner container and the metal bottle valve seat. The power module can select the gas storage cylinders 11 with different numbers, different length-diameter ratios, different unit configuration modes and different array forms according to the size and the shape of the placing space so as to deal with the limited or special-shaped placing space and improve the space utilization rate; meanwhile, in order to improve the safety and maintainability, after the plurality of gas cylinders 11 in the power module are divided into a plurality of gas cylinder groups 1, a connection mode that the plurality of gas cylinder groups 1 are combined with each other may be adopted, for example, as shown in fig. 3, the plurality of gas cylinder groups 1 may be arranged in different regions according to a special-shaped space between the plurality of gas cylinder groups 1; as shown in fig. 2, the plurality of gas storage bottle sets 1 may be arranged in parallel.

In an embodiment, the two ends of each gas cylinder 11 are respectively provided with a gas inlet and a gas outlet, the gas outlets of the gas cylinders 11 at the head ends of the adjacent two groups of gas cylinder groups 1 are communicated in sequence, and the gas inlets of the gas cylinders 11 at the tail ends of each group of gas cylinder groups 1 are communicated with an external gas supply part. Thus, the tail end of each gas storage cylinder group 1 receives the gas provided by the external gas supply part and conveys the gas to each gas storage cylinder 11 of the whole gas storage cylinder group 1, and when the power module needs to supply gas to the hydrogen fuel cell stack, the gas outlets of the gas storage cylinders 11 at the head end of each gas storage cylinder group 1 can supply gas one by one respectively. Because communicate between the gas bomb 11 of every group gas bomb group 1's head end according to the preface, when having gas bomb 11 to break down among one of them group gas bomb group 1, other gas bomb group 1 of group can continue the air feed to do not influence the air feed of whole power module.

In one embodiment, the gas outlet of the gas cylinder 11 at the head end of each gas cylinder group 1 is provided with a safety valve 13. In the conventional gas cylinder 11, when a plurality of gas cylinders 11 are connected in parallel, they are generally connected to each other by hard metal piping. In this way, each cylinder 11 unit needs to be provided with a separate safety valve 13. Because the safety valve 13 comprises an electric control valve, a temperature control safety valve 13, a manual pressure release valve and the like, the structure is complex, and the volume and the weight are large. In addition, in the process of filling gas into a single gas storage bottle 11 at a high speed, the gas is compressed to cause severe internal temperature rise, and because the thermal conductivity of the plastic liner is extremely poor, internal heat cannot be dissipated, so that the risk of plastic softening caused by overhigh temperature is easily caused. And in this application, communicate each other between each minor diameter gas bomb 11 in the gas bomb group 1, share a relief valve 13, not only can effectual reduction whole weight, and because each gas bomb 11 in the gas bomb group 1 communicates each other, equal to enlarged the thermal capacity of whole gas bomb 11 system, can effectual reduction inside temperature rise speed, prevent the overheat risk. In the concrete application, relief valve 13 can be automatically controlled multichannel solenoid valve, because communicate according to the preface between the gas outlet of the gas bomb 11 of the head end of adjacent two sets of gas bomb group 1, open the relief valve 13 that gas bomb group 1 corresponds and can organize 1 to be connected to whole power module with this group gas bomb, when this group of certain gas bomb 11 trouble in gas bomb group 1, can organize 1 to withdraw from whole power module with this group gas bomb group through closing relief valve 13, the gas outlet of the gas bomb 11 of 1 head end of other gas bomb group still can be through continuing the air feed, do not influence the use of whole power module.

In one embodiment, the power module further includes a communicating pipe assembly 2 for delivering gas to the hydrogen fuel cell stack, when the gas cylinder sets 1 are provided with more than two sets, each gas cylinder set 1 is connected to the communicating pipe assembly 2 and is communicated with the energy conversion assembly through the communicating pipe assembly 2, so that each gas cylinder set 1 can deliver gas to the energy conversion assembly through the communicating pipe assembly 2, and the gas supply amount of the power module is increased.

In one embodiment, the communicating pipe assembly 2 comprises a communicating pipe 21 and a communicating valve 22, the communicating pipe 21 comprises a first metal pipe and a second metal pipe, and the safety valve 13 of each gas storage bottle group 1 is communicated with the first metal pipe through the second metal pipe. Therefore, the gas in the gas storage cylinders 11 of each gas storage cylinder group 1 is sequentially conveyed to the first metal pipeline through the safety valve 13 and the second metal pipeline, and then the gas can be conveyed to the hydrogen fuel cell stack through the first metal pipeline. Due to the effects of the first metal pipeline and the second metal pipeline, the positions of the gas storage bottle groups 1 can be relatively fixed, so that the risk of displacement between the gas storage bottle groups 1 caused by vibration in the driving process, road jolt and the like in the using process can be reduced, and meanwhile, the noise can be reduced. In specific application, due to the good sealing performance of the metal pipelines, the gas of each gas storage bottle group 1 cannot leak in the process of being conveyed to the hydrogen fuel cell stack through the first metal pipeline and the second metal pipeline; the first metal pipe and the second metal pipe may be designed as thin tubes.

In one embodiment, each second metal conduit is in communication with the first metal conduit through a communication valve 22. The communication valve 22 may be in an normally off state and may be energized when gas path switching is required. In the specific application, when the gas storage cylinders 11 in each gas storage cylinder group 1 work normally, the safety valves 13 corresponding to each gas storage cylinder group 1 are in an open state, each gas storage cylinder group 1 can convey gas to the first metal pipeline, when the power module supplies gas to the hydrogen fuel cell stack, only one or more gas storage cylinder groups 1 need to supply gas, and all the gas storage cylinder groups 1 do not need to uniformly supply gas, so that the gas supply of other gas storage cylinder groups 1 can be closed through the communicating valve 22, whether each gas storage cylinder group 1 participates in gas supply can be controlled, when one or more gas storage cylinder groups 1 finish gas supply, the gas supply of the following gas storage cylinder group 1 can be opened in sequence, and the ordered gas supply of the power module is ensured.

In the concrete application, the communicating pipe 21 can be made of aluminum alloy or stainless steel, for example, the communicating pipe 21 can be made of T6061 series aluminum alloy or 316L series stainless steel, the materials have better strength on one hand, and can improve the overall rigidity of the gas storage cylinder group 1, and on the other hand, the materials have better corrosion resistance, especially better hydrogen embrittlement resistance, and can effectively prevent the corrosion of fuel gases such as hydrogen and the like to the communicating pipe 21, improve the safety of the power module, and prolong the service life of the power module.

In one embodiment, the connecting members 12 may be connecting hoses, and the adjacent gas cylinders 11 in each gas cylinder group 1 are sequentially communicated through the connecting hoses; in two adjacent gas cylinders 11 of each gas cylinder group 1, the gas inlet of one gas cylinder 11 and the gas outlet of the other gas cylinder 11 are located on the same side. The gas storage bottles 11 in the gas storage bottle group 1 are communicated through the connecting hoses, so that each gas storage bottle group 1 only needs to be provided with one safety valve 13 at the gas outlet of the gas storage bottle 11 at the head end, and the number of the safety valves 13 is reduced; meanwhile, the hydrogen storage cylinders are communicated with each other under the action of the connecting hose, so that the relative positions and angles of the gas storage cylinders 11 are conveniently adjusted, and the flexibility of configuring the gas storage cylinders 11 is improved. In the concrete application, a plurality of gas bomb 11 in every group gas bomb group 1 side by side interval sets up and the mode that communicates according to the preface can be: the air inlets of the adjacent air storage bottles 11 in each air storage bottle group 1 can be correspondingly arranged on different sides, that is, the connecting hoses are respectively connected with the air inlets and the air outlets between the adjacent air storage bottles 11 in each air storage bottle group 1 on different sides; the air inlets of the adjacent gas storage bottles 11 in each gas storage bottle group 1 can also be correspondingly arranged on the same side, and the air outlets of the gas storage bottles 11 of the adjacent gas storage bottles 11 are also correspondingly arranged on the same side, namely, the air inlets and the air outlets between the adjacent gas storage bottles 11 in each gas storage bottle group 1 are connected at the same end of the gas storage bottles 11, so that the length of the connecting hose can be reduced.

Illustratively, the connection hose may be made of one of Polytetrafluoroethylene (PTFE), Nylon (Nylon, Polyamide, PA) or High Density Polyethylene (HDPE), but in other embodiments, the connection hose may be made of other suitable materials, such as metal bellows.

In one embodiment, the gas cylinder assembly 1 further comprises a housing (not shown), and the gas cylinder 11 is located in an inner cavity of the housing. Illustratively, the housing of the gas cylinder 11 may be one of a plastic housing, a modified plastic housing, a composite material housing of carbon fiber, or a metal housing. In a specific application, for example, when a metal case is used, an aluminum alloy or austenitic stainless steel S is used in consideration of the effect of hydrogen embrittlement. The gas cylinder 11 is free of filler material to prevent gas build-up.

In one embodiment, the gas cylinder set 1 further includes a fixing bracket (not shown), the fixing bracket is connected to the gas cylinder set 1, and when the gas cylinder set 1 is provided with more than two sets, the fixing bracket can be used to fix the relative position between the gas cylinder sets 1. The fixing bracket may be, for example, a metal bracket, and a metal frame is used to fix the mutual positions of the gas cylinders 11 after the configuration of the power module is determined. The metal frame used needs to take hydrogen embrittlement characteristics into consideration, and a material which is not affected by hydrogen embrittlement, such as T aluminum alloy (e.g., T6061 series aluminum alloy), or austenitic stainless steel (e.g., 316L series stainless steel), is used. Adopt rubber packing to carry out the shock attenuation between metal framework and the gas bomb 11 and be connected, prevent metal framework and 11 hard connections of gas bomb, reduce in the use because the vibration and the road surface of the in-process of traveling jolt etc. cause to the impact of gas bomb 11, prevent to produce relative displacement between the gas bomb 11, and can the noise reduction. The frame and the rubber gasket also ensure the safety of the gas cylinder 11 when the housing of the gas cylinder 11 is subjected to external impacts.

In the concrete application, gas bomb group 1 also can not set up the fixed bolster alone, but utilizes the communicating pipe 21 that metal material made to play the effect of fixed gas bomb group 1, and communicating pipe 21 that metal material made has the gas tightness that has the preferred on the one hand, can prevent gas leakage, and on the other hand, metal material's communicating pipe 21 has the structural strength of preferred, and it can regard as the fixed bolster fixed each relative position of gas bomb group 1, improves the reliability of power module.

In an embodiment, the gas cylinder set 1 further comprises a gas sensor connected to the safety valve 13 and configured to detect the working status of the gas cylinder 11, the gas cylinder set 1, or the gas cylinder 11 and the gas cylinder set 1. In the specific application, unexpected gaseous problem of leaking can appear in gas bomb 11 and gas bomb group 1, make fuel gas in the bottle leak outside the bottle, make gas bomb 11 and gas bomb group 1 unable normal work, the gaseous potential safety hazard that exists of leaking simultaneously, and this embodiment passes through the operating condition of each gas bomb 11 of gas sensor real-time supervision and gas bomb group 1 (can detect whether there is fuel gas outside the bottle, or detect the pressure variation numerical value in the gas bomb 11 and judge whether there is the scheduling problem of leaking), when gas bomb 11 or gas bomb group 1 broke down, can organize 1 emergency shut through relief valve 13 with the gas bomb that breaks down, make its air feed that pauses, guarantee the even running of power module.

In an embodiment, referring to fig. 4 in combination, the gas sensor includes a first gas sensor 14 and a second gas sensor 15, and a first gas sensor 14 for detecting the working state of the gas cylinder 11 and sending a detection signal is arranged in each gas cylinder 11; the first gas sensor 14 in each gas storage cylinder group 1 is communicated with the safety valve 13 of the gas storage cylinder group 1, and the safety valve 13 of the gas storage cylinder group 1 is opened and closed according to the signal sent by the first gas sensor 14. In the concrete application, the operating condition of gas bomb 11 can be multiple, rise and lead to the pressure release of temperature control relief valve if unusual temperature, perhaps because hydrogen bomb unit damage leads to unusual pressure drop etc. when first gas sensor 14 detected the operating condition that gas bomb 11 is unusual, can transmit the signal for on the relief valve 13 of the gas bomb group 1 at this gas bomb 11 place, the gas bomb group 1 at the gas bomb 11 place that appears unusual closes corresponding relief valve 13 promptly, withdraw from whole power module.

In an embodiment the housing is provided with a second gas sensor 15 and a gas discharge assembly 16, the first gas sensor 14 and the second gas sensor 15 each being in communication with the gas discharge assembly 16, the gas discharge assembly 16 being capable of discharging leaked gas in dependence of a gas leakage signal detected by the first gas sensor 14 and/or the second gas sensor 15. In the specific application, when the first gas sensor 14 in the gas bomb 11 and/or the second gas sensor 15 on the housing of the gas bomb 11 sense that the gas bomb 11 has gas leakage, the gas exhaust assembly 16 on the housing of the gas bomb 11 is started to exhaust accumulated gas, so that the safety of the gas bomb 11 is effectively improved, and the accumulation of the gas is reduced.

The embodiment of the application also provides a carrier, which comprises a carrier body and the power module, wherein the power module is connected to the energy conversion assembly of the carrier body and provides fuel gas for the energy conversion assembly. In a specific application, the vehicle may be a vehicle, a ship, an aircraft (especially an unmanned aerial vehicle), a logistics vehicle, and the like, and the energy conversion assembly of the vehicle may be a fuel cell, and may also be other suitable energy conversion assemblies, which is not limited in this embodiment.

For example, taking the vehicle as a hydrogen-fueled vehicle, the hydrogen-fueled vehicle includes the power module for the vehicle as described above, and the gas stored in the power module is hydrogen. The embodiment of the application provides a hydrogen fuel automobile, has the power module in any above-mentioned embodiment, therefore, all beneficial effects of the power module that has need not be repeated here. In the concrete application, can place the power module in vapour car trunk, avoid the chassis of automobile to bump and influence the power module, gas bomb group 1 can be piled up and place in vapour car trunk's the same position, also can unpack each gas bomb group 1 apart, and the form of similar battery package is with the different positions of placing in vapour car trunk respectively of a set of gas bomb group 1, selects the diameter and the length of gas bomb 11 in each gas bomb group 1 according to vapour car trunk's space.

The embodiment of the application further provides a safety management method for the power module, which is used for managing the power module and comprises the following steps:

the first gas sensor 14 detects the working state of the gas storage bottle 11, if the first gas sensor 14 detects that the gas storage bottle 11 works abnormally, the safety valve 13 controls to close the gas storage bottle group 1 where the gas storage bottle 11 is located, and the gas storage bottle group 1 stops supplying gas to the energy conversion assembly;

and/or the second gas sensor 15 detects the working state of the gas storage cylinder group 1, if the second gas sensor 15 detects that the leaked gas exists in the inner cavity of the shell, the safety valve 13 controls to close the gas storage cylinder group 1, the gas storage cylinder group 1 stops supplying gas to the energy conversion assembly, and the gas exhaust assembly 16 exhausts the gas in the inner cavity of the shell.

In a specific application, the safety management method of the power module in this embodiment may be used to manage the power module in a vehicle, and specifically, taking the vehicle as an example, when the power module of the vehicle has a fault due to an unfavorable road condition or a vehicle collision, the first gas sensor 14 may detect a working state (for example, a change condition of an internal pressure and a pressure) inside the gas cylinder 11 to determine whether the gas cylinder 11 leaks or not, and the second gas sensor 15 may detect whether the gas cylinder group 1 as a whole leaks or not. When the first gas sensor 14 detects that the gas cylinder 11 is out of order, the safety valve 13 connected with the first gas sensor 14 can close the gas cylinder group 1 where the gas cylinder 11 is located, and stop the gas supply of the energy conversion assembly. When the second gas sensor 15 detects that the leaked fuel gas exists inside the housing, the safety valve 13 can close the gas cylinder group 1 to stop gas supply, and the leaked gas is discharged through the gas discharge assembly 16 of the housing, so that the fuel gas is prevented from being accumulated, and the safety hazard of vehicle combustion and explosion is eliminated.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a power module for be connected with the energy conversion subassembly, and do the energy conversion subassembly air feed, its characterized in that, including at least a set of gas bomb group, gas bomb group includes gas bomb and coupling assembling, gas bomb group has two at least the gas bomb, every group in the gas bomb group pass through between the gas bomb coupling assembling communicates each other, gas bomb group with/or the gas bomb is according to the mode permutation and combination of predetermineeing.

2. The power module of claim 1, wherein said predetermined pattern comprises a rectangular array between said gas cylinders of each of said groups of gas cylinders; alternatively, the first and second electrodes may be,

3. The power module of claim 1, wherein said gas cylinders of said group of gas cylinders are arranged end to end in sequence by said connecting assembly.

4. The power module of claim 1, wherein the coupling assembly is a coupling hose made of a material selected from the group consisting of polytetrafluoroethylene, nylon, and high density polyethylene.

5. The power module of claim 1, wherein the gas cylinder set further comprises a safety valve connected to the gas cylinder and configured to control the gas cylinder set to supply gas to the energy conversion assembly.

6. The power module of claim 5, wherein the gas cylinder set further comprises a housing, the gas cylinder being located in an interior cavity of the housing.

7. The power module as set forth in claim 6, wherein said gas cylinder set further comprises a gas sensor connected to said safety valve for detecting an operating condition of said gas cylinder and/or said gas cylinder set.

8. The power module of claim 7, wherein the gas sensor comprises a first gas sensor and a second gas sensor connected to the safety valve, the first gas sensor being disposed inside the gas cylinder and configured to detect an operating state of the gas cylinder, and the second gas sensor being disposed inside the housing and configured to detect an operating state of the gas cylinder set.

9. The power module as claimed in claim 7, wherein the gas cylinder set further comprises a gas exhaust assembly, the gas exhaust assembly is connected to the housing, the gas exhaust assembly is connected to the gas sensor, and exhausts the gas in the inner cavity of the housing based on the detection information of the gas sensor.

10. The power module of any of claims 1 to 9, further comprising a communication tube assembly, wherein when more than two sets of gas cylinder sets are provided, each gas cylinder set is connected to the communication tube assembly and is in communication with the energy conversion assembly through the communication tube assembly.

11. The power module as set forth in claim 10 wherein said communication tube assembly includes a communication conduit and a communication valve, said communication conduit being connected to said energy conversion assembly, said communication valve having ports connected to said communication conduit and said cylinder bank, respectively, for communicating said cylinder bank with said communication conduit.

12. The power module of claim 11, wherein the communication conduit is a metal tube made of aluminum alloy or stainless steel.

13. The power module of any of claims 1-9, wherein each of said gas cylinders has an outer diameter of 50mm to 240mm, an aspect ratio of 4 or greater; and/or at least one of the gas cylinders has an outer diameter or/and a length different from the other gas cylinders.

14. A vehicle comprising a vehicle body and a power module according to any one of claims 1 to 13.

15. The vehicle of claim 14, wherein the vehicle is a vehicle, the energy conversion component is a fuel cell, and the gas stored in the power module is hydrogen.

16. A method for safety management of a power module, for managing a power module according to any one of claims 1 to 13, comprising the steps of: