Trailer and vehicle traction system
By installing a hydrogen fuel power generation range extension device on the trailer and replenishing its electricity to the towed vehicles of new energy vehicles, the problem of low power and endurance when traction of new energy vehicles is solved, and the endurance is significantly improved.
Patent Information
- Application Number
- CN202421820072.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-07-29
AI Technical Summary
When new energy vehicles are tow vehicles, their power endurance is low, resulting in inconvenience for users in daily use.
A trailer is designed to be equipped with a hydrogen fuel power generation range-extended device, which supplies the generated power to the traction vehicle through the power supply connection line, thereby improving the power endurance of the traction vehicle.
The hydrogen fuel power generation range-extended device on the trailer chassis is used to replenish the power endurance of new energy vehicles and solve the problem of low traction vehicles.
Smart Images
Figure CN223001393U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of new energy vehicles, and particularly to trailers and vehicle towing systems. Background Art
[0002] New energy vehicles have four major advantages: near-zero emissions, regenerative braking energy recovery, no noise pollution, and low failure rate. They symbolize the beginning of the environmentally friendly era of human transportation and are thus developing faster and faster. However, for traditional new energy vehicles, due to the limited volume of the built-in batteries, their power endurance is not strong. When used as towing vehicles, their power endurance is further reduced because they also need to drive the trailers to move synchronously, which brings a lot of inconvenience to users' daily use. Summary of the Utility Model
[0003] An embodiment of this application provides a trailer and a vehicle towing system, aiming to improve the technical problem that when the towing vehicle in the existing vehicle towing system is a new energy vehicle, its power endurance is relatively low, which brings a lot of inconvenience to users' daily use.
[0004] To this end, an embodiment of this application provides a trailer, which is applied in a vehicle towing system. The vehicle towing system includes a towing vehicle for towing the trailer to move. The trailer includes a trailer chassis, on which a hydrogen fuel power generation range extender device and a power supply connection line are provided. One end of the power supply connection line is electrically connected to the power output end of the hydrogen fuel power generation range extender device, and the other end of the power supply connection line can be docked with the corresponding towing vehicle to supply the electric energy in the hydrogen fuel power generation range extender device to the towing vehicle.
[0005] Optionally, in some embodiments of this application, the hydrogen fuel power generation range extender device includes a hydrogen fuel power generation component and a housing box. The housing box is installed on the bottom side of the trailer chassis, the hydrogen fuel power generation component is built in the housing box, and the power output end of the hydrogen fuel power generation component is electrically connected to one end of the power supply connection line.
[0006] Optionally, in some embodiments of this application, the trailer further includes trailer wheels, which are movably installed on the bottom side of the trailer chassis, and the trailer wheels are located at one end of the trailer chassis away from the housing box.
[0007] Optionally, in some embodiments of this application, the hydrogen fuel power generation component includes a high-pressure hydrogen storage tank, a fuel cell stack module, and a fuel cell booster. The gas outlet of the high-pressure hydrogen storage tank is communicated with the gas inlet of the fuel cell stack module. The fuel cell stack module is electrically connected to the fuel cell booster, and the power output end is led out from the fuel cell booster.
[0008] Optionally, in some embodiments of the present application, the hydrogen fuel power generation assembly further includes a storage battery, and the storage battery is also electrically connected to the fuel cell stack module and the fuel cell booster respectively.
[0009] Optionally, in some embodiments of the present application, the accommodation box body is a metal box body, and a plurality of heat dissipation holes are provided on both opposite side walls of the accommodation box body in the moving direction of the trailer.
[0010] Optionally, in some embodiments of the present application, the trailer further includes a trailer body, the trailer body is installed on the top side of the trailer chassis, and the trailer body is in the structure of a recreational vehicle body or a transport vehicle body.
[0011] Optionally, in some embodiments of the present application, the trailer further includes a trailer hitch and a trailer rope. One end of the trailer rope is fastened to the trailer chassis, and the other end of the trailer rope is fixedly provided with the trailer hitch to be fixedly connected to the tail end of the towing vehicle through the trailer hitch.
[0012] Optionally, in some embodiments of the present application, the trailer further includes a CAN bus. One end of the CAN bus is electrically connected to the power control end of the hydrogen fuel power generation range extender device, and the other end of the CAN bus can be docked with the corresponding towing vehicle to adjust the power generation power of the hydrogen fuel power generation range extender device under the control of the corresponding towing vehicle.
[0013] In addition, an embodiment of the present application further provides a vehicle towing system, including a towing vehicle and the above-mentioned trailer. An electric energy input connection port is provided at the tail end of the towing vehicle, and the other end of the power supply connection line can be pluggably electrically connected to the electric energy input connection port to supply the electric energy in the hydrogen fuel power generation range extender device to the towing vehicle.
[0014] For the trailer and the vehicle towing system provided by the technical solution of the present application, through the above structural settings, when the towing vehicle is a new energy vehicle, during the process of towing the trailer of the present application, it can be replenished with electric energy through the hydrogen fuel power generation range extender device provided on the trailer chassis to increase the endurance of its own power, so that the endurance of its power is greatly improved. It can be seen that this technical solution can effectively improve the technical problem that when the towing vehicle of the existing vehicle towing system is a new energy vehicle, its power endurance is low, which brings many inconveniences to the daily use of users. Description of the Drawings
[0015] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.
[0016] Figure 1 Schematic structural diagram of the vehicle traction system according to an embodiment of the present application;
[0017] Figure 2 is Figure 1 Schematic partial structure of the vehicle traction system shown Figure 1 ;
[0018] Figure 3 is Figure 1 Schematic partial structure of the vehicle traction system shown Figure 2 .
[0019] The realization of the purpose, functional characteristics and advantages of the present application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Detailed implementation manners
[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.
[0021] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, the directional indications will also change accordingly.
[0022] In addition, the descriptions involving "first", "second", etc. in the present application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.
[0023] In one embodiment, as Figures 1 to 3As shown in the figure, an embodiment of the present application provides a trailer 100, which may specifically include a trailer 100 chassis. A hydrogen fuel power generation range extender 120 and a power supply connection line 130 are provided on the trailer 100 chassis. One end of the power supply connection line 130 is electrically connected to the power output terminal of the hydrogen fuel power generation range extender 120, and the other end of the power supply connection line 130 can be docked with the corresponding towing vehicle 200 to supply the electric energy in the hydrogen fuel power generation range extender 120 to the towing vehicle 200.
[0024] It can be understood that the trailer 100 of the embodiment of the present application can be specifically applied in the vehicle towing system 1 to move synchronously with the towing vehicle 200 under the traction of the towing vehicle 200. The above-mentioned hydrogen fuel power generation range extender 120 specifically refers to a device that converts hydrogen into electric energy to provide power, that is, it can add hydrogen to utilize the reaction between hydrogen and other substances to generate electric energy in real time. At the same time, the generated electric energy can be directly supplied to the towing vehicle 200 through the power supply connection line 130, or can be stored first and then directly supplied to the towing vehicle 200 through the power supply connection line 130 when needed. To facilitate the better docking of the other end of the power supply connection line 130 with the corresponding towing vehicle 200, an electric energy input connection plug should be provided at the other end of the power supply connection line 130, so that it can be plugged into the electric energy input connection port 210 provided on the towing vehicle 200 at any time to achieve the electrical connection between the two.
[0025] In this way, through the above structural settings, when the towing vehicle 200 is a new energy vehicle, it can be electrically supplemented through the hydrogen fuel power generation range extender 120 provided on the trailer 100 chassis during the process of towing the trailer 100 of the present application, so as to increase the endurance of its own power, and the endurance of its power is greatly improved.
[0026] In some examples, such as Figures 1 to 3As shown in the figure, the hydrogen fuel power generation range extender 120 may specifically include a hydrogen fuel power generation component 121 and a housing box 122. The housing box 122 is installed on the bottom side of the chassis of the trailer 100. The hydrogen fuel power generation component 121 is built in the housing box 122, and the power output end of the hydrogen fuel power generation component 121 is electrically connected to one end of the power supply connection line 130. In this way, through the above structural arrangement, the entire hydrogen fuel power generation range extender 120 is mainly installed on the bottom side of the chassis of the trailer 100, thereby effectively reducing the structural center of gravity of the trailer 100 and ensuring the stability during its movement following the towing vehicle 200. Further, the trailer 100 further includes trailer wheels. The trailer wheels are movably installed on the bottom side of the chassis of the trailer 100, and the trailer wheels are located at one end of the chassis of the trailer 100 away from the housing box 122. In this way, through the above structural arrangement, the structural center of gravity of the trailer 100 is advanced. The towing vehicle 200 only needs a relatively small force to tow the trailer 100 to move synchronously, thereby achieving the purpose of improving the climbing ability and energy saving of the towing vehicle 200. That is, compared with the traditional trailer chassis, the design with the advanced structural center of gravity can alleviate the problems of climbing slippage and vehicle sinking to a certain extent.
[0027] It can be understood that for the convenience of installation and maintenance of the hydrogen fuel power generation component 121, the housing box 122 may be provided with a flip-up opening structure on the top side of the chassis of the trailer 100, so as to facilitate opening the internal space of the housing box 122 in the form of a flip-up, so as to facilitate the installation and maintenance personnel to perform corresponding installation and maintenance on the hydrogen fuel power generation component 121. The specific number of the trailer wheels is preferably two, both located at the rear end of the chassis of the trailer 100 and oppositely arranged on both sides perpendicular to its movement direction. At this time, the hydrogen fuel power generation range extender 120 is located at the front end of the chassis of the trailer 100. The towing vehicle 200 specifically drives the trailer 100 to move synchronously by towing the front end of the chassis of the trailer 100.
[0028] In some examples, such as Figures 1 to 3As shown, the hydrogen fuel power generation component 121 includes a high-pressure hydrogen storage tank, a fuel cell stack module, and a fuel cell booster. The gas outlet of the high-pressure hydrogen storage tank is communicatively connected to the gas inlet of the fuel cell stack module. The fuel cell stack module is electrically connected to the fuel cell booster, and a power output terminal is led out from the fuel cell booster. In this way, through the above structural arrangement, when the valve of the high-pressure hydrogen storage tank is opened to deliver hydrogen into the fuel cell stack module, the hydrogen can react with the substances in the fuel cell stack module to generate hydrogen ions and positrons, thereby generating a relatively low voltage. At this time, by boosting the voltage through the fuel cell booster, the power supply requirement of the towing vehicle 200 can be met, and the electrical energy can be supplied to the towing vehicle 200 through the power output terminal on the fuel cell booster and the power supply connection line 130, so as to increase the endurance of the power of the towing vehicle 200 and greatly improve its power endurance ability. Further, the hydrogen fuel power generation component 121 further includes a storage battery, and the storage battery is also electrically connected to the fuel cell stack module and the fuel cell booster respectively. In this way, through the above structural arrangement, the electrical energy generated when the fuel cell stack module generates electricity can be further stored in the storage battery, and when needed, the electrical energy can be supplied to the towing vehicle 200 through the power output terminal on the fuel cell booster and the power supply connection line 130, thereby meeting the usage requirements of more scenarios.
[0029] In some examples, as Figures 1 to 3 shown, the accommodating box body 122 is a metal box body, and a plurality of heat dissipation holes are formed in the opposite side walls of the accommodating box body 122 in the moving direction of the trailer 100. In this way, through the above structural arrangement, when the trailer 100 moves synchronously with the towing vehicle 200, a large amount of wind can flow in from the heat dissipation holes on one side and flow out through the heat dissipation holes on the other side, thereby greatly increasing the fluidity of the internal air of the accommodating box body 122, enabling the heat generated when the hydrogen fuel power generation component 121 generates electricity to be discharged in a timely and effective manner through the side walls and heat dissipation holes of the accommodating box body 122, and thus effectively improving the service life of the hydrogen fuel power generation range extender device 120.
[0030] In some examples, as Figures 1 to 3As shown, the trailer 100 further includes a trailer body 100, which is installed on the top side of the trailer chassis 100. The trailer body 100 can specifically be a recreational vehicle body structure or a transport vehicle body structure. In this way, through the above structural arrangement, the trailer 100 can be applied to different vehicle towing systems 1 to meet the requirements of different usage scenarios. Further, the trailer 100 also includes a trailer hook 100 and a trailer rope 100. One end of the trailer rope 100 is fastened to the trailer chassis 100, and the other end of the trailer rope 100 is fixedly provided with a trailer hook 100 to be fixedly connected to the tail end of the towing vehicle 200 through the trailer hook 100. In this way, through the above structural arrangement, it is ensured that an effective and firm towing connection can be quickly established between the trailer 100 and the corresponding towing vehicle 200.
[0031] In some examples, as Figures 1 to 3 shown, the trailer 100 further includes a CAN bus 180. One end of the CAN bus 180 is electrically connected to the power control terminal of the hydrogen fuel power generation range extender 120, and the other end of the CAN bus 180 can be docked with the corresponding towing vehicle 200 to adjust the power generation power of the hydrogen fuel power generation range extender 120 under the control of the corresponding towing vehicle 200. It can be understood that the hydrogen fuel power generation range extender 120 can be provided with a corresponding power controller at the power control terminal, and the other end of the CAN bus 180 can be docked with the corresponding towing vehicle 200, specifically, it can be electrically connected to the central controller of the towing vehicle 200. In this way, through the above structural arrangement, the towing vehicle 200 (specifically, the central controller) can communicate with the power control terminal (specifically, the power controller) of the hydrogen fuel power generation range extender 120 through the CAN bus 180. The towing vehicle 200 can make corresponding adjustments to the power control terminal of the hydrogen fuel power generation range extender 120 by real-time monitoring the output power of the current power supply connection line 130, so that the power control terminal of the hydrogen fuel power generation range extender 120 can reasonably adjust the power generation power of the hydrogen fuel power generation range extender 120 (specifically, the fuel cell stack module) to control it within the range most suitable for the current output power, thereby achieving the purpose of high efficiency and energy conservation.
[0032] In one embodiment, as Figures 1 to 3 shown, the embodiment of the present application further provides a vehicle towing system 1. The vehicle towing system 1 includes a towing vehicle 200 and the above-mentioned trailer 100. An electric energy input connection port 210 is provided at the tail end of the towing vehicle 200, and the other end of the power supply connection line 130 can be plugged and electrically connected to the electric energy input connection port 210 to supply the electric energy in the hydrogen fuel power generation range extender 120 to the towing vehicle 200. Since the vehicle towing system 1 uses the trailer 100 in the above embodiment, it has the same technical effects as the above trailer 100, which will not be elaborated here.
[0033] It can be understood that the above-mentioned electric energy input connection port 210 is preferably a bus bar interface of a range extender, which can effectively realize the power supply connection between the towing vehicle 200 and the trailer 100.
[0034] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the specification and drawings of the present application under the inventive concept of the present application, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present application.
Claims
1. A trailer, used in a vehicle towing system, wherein the vehicle towing system comprises a towing vehicle for towing the trailer, characterized in that: The trailer includes a trailer chassis, on which a hydrogen fuel power generation range extender and a power supply connection line are arranged, one end of the power supply connection line is electrically connected to the power output end of the hydrogen fuel power generation range extender, and the other end of the power supply connection line can be connected to the corresponding traction vehicle to supply the electric energy in the hydrogen fuel power generation range extender to the traction vehicle.
2. The trailer according to claim 1, characterized in that The hydrogen fuel power generation range extender device includes a hydrogen fuel power generation component and a containing box, the containing box is installed on the bottom side of the trailer chassis, the hydrogen fuel power generation component is built into the containing box, and the power output end of the hydrogen fuel power generation component is electrically connected to one end of the power supply connection line.
3. The trailer according to claim 2, characterized in that The trailer further comprises trailer wheels, which are movably mounted on the bottom side of the trailer chassis and are located at one end of the trailer chassis away from the accommodating box.
4. The trailer according to claim 2, characterized in that The hydrogen fuel power generation assembly includes a high-pressure hydrogen storage tank, a fuel cell stack module and a fuel cell booster. The gas outlet of the high-pressure hydrogen storage tank is connected to the gas inlet of the fuel cell stack module. The fuel cell stack module is electrically connected to the fuel cell booster, and the power output end is led out from the fuel cell booster.
5. The trailer according to claim 4, characterized in that The hydrogen fuel power generation assembly also includes a battery, and the battery is also electrically connected to the fuel cell stack module and the fuel cell booster respectively.
6. The trailer according to claim 2, characterized in that The accommodating box is a metal box, and two side walls of the accommodating box opposite to each other in the moving direction of the trailer are provided with a plurality of heat dissipation holes.
7. The trailer according to claim 1, characterized in that The trailer further comprises a trailer body, which is arranged on the top side of the trailer chassis and is a recreational vehicle body structure or a transport vehicle body structure.
8. The trailer according to claim 1, characterized in that The trailer also includes a trailer hook and a trailer rope, one end of the trailer rope is fastened to the trailer chassis, and the other end of the trailer rope is fixedly provided with the trailer hook so as to be fastened and connected to the rear end of the towing vehicle through the trailer hook.
9. The trailer according to any one of claims 1 to 8, characterized in that: The trailer also includes a CAN bus, one end of which is electrically connected to the power control end of the hydrogen fuel power generation and range extender, and the other end of the CAN bus can be connected to the corresponding traction vehicle to adjust the power generation power of the hydrogen fuel power generation and range extender under the control of the corresponding traction vehicle.
10. A vehicle traction system, characterized in that: It comprises a tractor vehicle and a trailer as described in any one of claims 1 to 9, wherein a power input connection port is provided at the rear end of the tractor vehicle, and the other end of the power supply connection line can be plug-in electrically connected to the power input connection port to supply the power in the hydrogen fuel power generation range extender to the tractor vehicle.