A high and low temperature environment chamber drum test system

Abstract

The present invention relates to the technical field of vehicle testing, and in particular to a high and low temperature environment chamber drum test system for testing vehicles, wherein the test system comprises a drum test bench and a flame retardant system; the flame retardant system is arranged on the drum test bench and is located below a vehicle, wherein the vehicle comprises wheels, and the wheels are connected to the drum test bench; the flame retardant system comprises a plurality of injection assemblies, wherein the plurality of injection assemblies are respectively arranged corresponding to one or more of an engine compartment, a power battery, a fuel tank and an exhaust arrangement position of the vehicle; the injection assembly comprises a main body and a plurality of carbon dioxide injection ports and a plurality of high-pressure fine water mist injection ports arranged on the main body; the present invention adopts a dual-medium injection device, and can use carbon dioxide medium as a flame retardant and cooling material under low temperature conditions to cool down and flame retard a fire point and the surrounding area of ​​the fire point, thereby ensuring that personnel have more time to escape from the vehicle to a safe place.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle testing, and in particular to a high and low temperature environment chamber drum test system. Background Art

[0002] At present, all OEMs and third-party verification companies have purchased and used high and low temperature environmental chamber drum test chambers. The fire-fighting devices installed in the test chambers are mostly high-pressure fine water mist, which is sprayed from the bulkhead. When a fire occurs, it is impossible to spray directly to cool the fire point. In low-temperature tests, especially at -45℃, the high-pressure fine water mist will have the risk of freezing and will not have a flame retardant effect. Most of the current vehicles are hybrid vehicles (transmission vehicles + power batteries), traditional vehicles, and electric vehicles. Electric vehicles and hybrid vehicles all have power battery arrangements. The raw materials of power batteries are lithium iron phosphate materials. It is difficult to extinguish a fire quickly. If the fire point is not controlled in the first time, the driver of the vehicle will not be able to escape from the vehicle.

[0003] At present, most vehicle test laboratories are protected by high-pressure fine water mist, and the vehicle is directly fixed on the drum system with a small distance from the ground. If a fire starts from the bottom, the existing high-pressure fine water mist will be sprayed from the bulkhead and cannot directly reach the fire source. The direct effect on the vehicle fire is low and the driver's safety cannot be protected. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a high and low temperature environment chamber drum test system to solve the problem of accidental vehicle fire during the high and low temperature environment chamber drum system test of the whole vehicle, delay the spread of fire, increase the handling time for the driver and related personnel, reduce economic losses and reduce the probability of the driver being trapped.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A high and low temperature environment chamber drum test system, used for vehicle testing, the test system comprises a drum test bench and a flame retardant system;

[0007] The flame retardant system is arranged on a drum test bench and is located below a vehicle, the vehicle includes wheels, and the wheels are connected to the drum test bench;

[0008] The flame retardant system includes a plurality of injection assemblies, and the plurality of injection assemblies are respectively arranged corresponding to one or more of the engine compartment, the power battery, the fuel tank and the exhaust arrangement position of the vehicle;

[0009] The injection assembly comprises a body and a plurality of carbon dioxide injection ports and a plurality of high-pressure fine water mist injection ports arranged on the body.

[0010] Preferably, the low temperature environment chamber drum test system further comprises a fixing system;

[0011] The fixing system comprises a plurality of mutually parallel beams, and a slide rail is arranged on the upper side of the beams;

[0012] Matching blocks matching with the slide rail are arranged at both ends of the injection assembly, and a plurality of the injection assemblies are slidably connected with the slide rail through the matching blocks and are arranged between two parallel beams.

[0013] Preferably, the cross beam is hollowed out.

[0014] Preferably, there are four cross beams.

[0015] Preferably, there are four groups of injection assemblies, and the four groups of injection assemblies are distributed between four beams in a one-to-two-to-one distribution pattern.

[0016] Preferably, the crossbeam is provided with a plurality of fixing grooves, and the drum test bench is provided with connecting pieces that cooperate with the fixing grooves.

[0017] Preferably, the injection assembly further includes a connecting pipe, the body includes an upper part and a lower part, the upper part is a quadrangular pyramid structure, and the carbon dioxide injection port and the high-pressure fine water mist injection port are arranged on the upper surface and the side surface of the upper part;

[0018] The lower connecting pipe is arranged in the lower part and is connected with the carbon dioxide injection port and the high-pressure fine water mist injection port.

[0019] Preferably, the carbon dioxide injection ports and the high-pressure water mist injection ports are arranged alternately.

[0020] The beneficial effects of the present invention are as follows: by setting a plurality of carbon dioxide injection ports and a plurality of high-pressure fine water mist injection ports, modular assembly can be performed according to the type of test vehicle model, and the injection medium can be selected, and the injection assembly supports modular arrangement, and different numbers and positions of injection assemblies can be selected according to different vehicles for combination, so that traditional vehicles, hybrid vehicles, and electric vehicles can be arranged specifically, the points involved are clear, and the protection effect is direct and effective; the existing environmental chamber environment simulation temperature range is -45°C to +60°C, and the use of a device with a medium of water in an extremely low temperature environment will cause part of the pipeline to freeze, or the sprayed liquid will freeze, resulting in reduced injection effect; the present invention adopts a dual-medium injection device, and can use carbon dioxide as a flame retardant and cooling material under low temperature conditions to cool and flame retard the fire point and the surrounding area of ​​the fire point, thereby ensuring that personnel have more time to escape from the vehicle to a safe place. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural schematic diagram of a high and low temperature environment chamber drum test system according to a specific embodiment of the present invention

[0022] Figure 2 for Figure 1Enlarged view of part A;

[0023] Explanation of reference numerals: 1. Injection assembly; 2. Carbon dioxide injection port; 3. High-pressure water mist injection port; 4. Crossbeam; 5. Slide rail; 6. Fixing groove; DETAILED DESCRIPTION

[0024] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0025] Please refer to Figure 1 as well as Figure 2 , a high and low temperature environment chamber drum test system, used for vehicle testing, the test system includes a drum test bench and a flame retardant system;

[0026] The flame retardant system is arranged on a drum test bench and is located below a vehicle, the vehicle includes wheels, and the wheels are connected to the drum test bench;

[0027] The flame retardant system comprises a plurality of injection assemblies 1, wherein the plurality of injection assemblies 1 are respectively arranged corresponding to one or more of the engine compartment, the power battery, the fuel tank and the exhaust arrangement position of the vehicle;

[0028] The injection assembly 1 includes a body and a plurality of carbon dioxide injection ports 2 and a plurality of high-pressure fine water mist injection ports 3 arranged on the body.

[0029] From the above description, it can be seen that the beneficial effects of the present invention are: by setting multiple carbon dioxide injection ports 2 and multiple high-pressure fine water mist injection ports 3, modular assembly can be carried out according to the type of test vehicle model, and the injection medium can be selected, and the injection component 1 supports modular arrangement, and different numbers and positions of injection components 1 can be selected according to different vehicles for combination, and traditional vehicles, hybrid vehicles, and electric vehicles are arranged specifically, the points involved are clear, and the protection effect is direct and effective; the existing environmental chamber environment simulation temperature range is -45°C to +60°C, and the use of a device with a medium of water in an extremely low temperature environment will cause part of the pipeline to freeze, or the sprayed liquid will freeze, resulting in a reduction in the injection effect; the present invention adopts a dual-medium injection device, and can use carbon dioxide as a flame retardant and cooling material under low temperature conditions to cool and flame retard the fire point and the surrounding area of ​​the fire point, ensuring that people have more time to escape from the vehicle to a safe place.

[0030] From the above description, it can be seen that the working process of the present invention is:

[0031] Traditional fuel vehicles:

[0032] When a fire occurs in the engine compartment / fuel tank due to electrical short circuit / fuel leakage, the engine compartment / fuel tank section device is turned on and the spray medium is carbon dioxide. When the exhaust temperature is too high and a fire occurs, the device of the exhaust section is sprayed and the spray medium is water. When the medium is carbon dioxide, people must evacuate immediately. Wait for professional firefighters.

[0033] Hybrid:

[0034] The fuel part is the same as traditional fuel vehicles. When the power battery part catches fire, the injection device in the closed position is activated first. The medium is carbon dioxide. The injection medium of the remaining protection sections is water. At the same time, personnel evacuate and wait for professional firefighters.

[0035] Electric Vehicles:

[0036] When the power battery catches fire, the spray is carried out according to the ambient temperature. When the temperature is extremely low (the ambient chamber temperature can be as low as -45°C), carbon dioxide is selected as the medium. For other temperatures, the medium is selected according to the situation.

[0037] Furthermore, the low temperature environment chamber drum test system also includes a fixing system;

[0038] The fixing system comprises a plurality of mutually parallel beams 4, and a slide rail 5 is arranged on the upper side of the beams 4;

[0039] Matching blocks matching with the slide rail 5 are arranged at both ends of the injection assembly 1 , and a plurality of the injection assemblies 1 are slidably connected with the slide rail 5 through the matching blocks and are arranged between two parallel beams 4 .

[0040] It can be seen from the above description that the arrangement of the crossbeam 4 and the slide rail 5 can facilitate installation, fixation and position adjustment, thereby improving efficiency.

[0041] Furthermore, the crossbeam 4 is hollowed out.

[0042] It can be seen from the above description that the hollow crossbeam 4 can greatly reduce the overall weight, making it easier to carry and adjust.

[0043] Furthermore, there are four crossbeams 4.

[0044] Furthermore, there are four groups of the injection assemblies 1 , and the four groups of the injection assemblies 1 are distributed between the four beams 4 in a one-to-two-to-one distribution pattern.

[0045] From the above description, it can be seen that the four groups of injection assemblies 1 are distributed in a one-to-two-to-one distribution between the four beams 4, which can be divided into four areas, corresponding to the wheel installation locations of the four drum tests, and the two distributions in the middle correspond to the exhaust or battery pack, which is also the main location where fire occurs.

[0046] Furthermore, the crossbeam 4 is provided with a plurality of fixing grooves 6 , and the drum test bench is provided with connecting pieces that cooperate with the fixing grooves 6 .

[0047] Furthermore, the injection assembly further includes a connecting pipe, the body includes an upper part and a lower part, the upper part is a quadrangular pyramid structure, and the carbon dioxide injection port 2 and the high-pressure fine water mist injection port 3 are arranged on the upper surface and the side surface of the upper part;

[0048] The lower connecting pipe is arranged in the lower part and is connected with the carbon dioxide injection port 2 and the high-pressure fine water mist injection port 3 .

[0049] Furthermore, the carbon dioxide injection port 2 and the high-pressure water mist injection port 3 are arranged alternately.

[0050] Embodiment 1

[0051] A high and low temperature environment chamber drum test system, used for vehicle testing, the test system comprises a drum test bench and a flame retardant system;

[0052] The flame retardant system is arranged on a drum test bench and is located below a vehicle, the vehicle includes wheels, and the wheels are connected to the drum test bench;

[0053] The flame retardant system includes a plurality of injection assemblies, and the plurality of injection assemblies are respectively arranged corresponding to one or more of the engine compartment, the power battery, the fuel tank and the exhaust arrangement position of the vehicle;

[0054] The injection assembly comprises a body and a plurality of carbon dioxide injection ports and a plurality of high-pressure fine water mist injection ports arranged on the body.

[0055] The low temperature environment chamber drum test system also includes a fixing system;

[0056] The fixing system comprises a plurality of mutually parallel beams, and a slide rail is arranged on the upper side of the beams;

[0057] Matching blocks matching with the slide rail are arranged at both ends of the injection assembly, and a plurality of the injection assemblies are slidably connected with the slide rail through the matching blocks and are arranged between two parallel beams.

[0058] The crossbeam is hollowed out.

[0059] There are four crossbeams.

[0060] There are four groups of injection components, and the four groups of injection components are distributed between four beams in a one-to-two-to-one distribution pattern.

[0061] The crossbeam is provided with a plurality of fixing grooves, and the drum test bench is provided with connecting pieces matched with the fixing grooves.

[0062] The injection assembly also includes a connecting pipe, the body includes an upper part and a lower part, the upper part is a quadrangular pyramid structure, and the carbon dioxide injection port and the high-pressure fine water mist injection port are arranged on the upper surface and the side surface of the upper part;

[0063] The lower connecting pipe is arranged in the lower part and is connected with the carbon dioxide injection port and the high-pressure fine water mist injection port.

[0064] The high and low temperature environment chamber drum test system also includes a carbon dioxide source (carbon dioxide gas tank) and a water source (water tank / external tap water) which are supplied to the carbon dioxide injection port and the high-pressure fine water mist injection port through pipelines.

[0065] The carbon dioxide injection port and the high-pressure water mist injection port are arranged alternately.

[0066] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high and low temperature environment chamber drum test system, used for vehicle testing, characterized in that: The experimental system includes a drum test bench and a flame retardant system; The flame retardant system is arranged on a drum test bench and is located below a vehicle, the vehicle includes wheels, and the wheels are connected to the drum test bench; The flame retardant system includes a plurality of injection assemblies, and the plurality of injection assemblies are respectively arranged corresponding to one or more of the engine compartment, the power battery, the fuel tank and the exhaust arrangement position of the vehicle; The injection assembly includes a body and a plurality of carbon dioxide injection ports and a plurality of high-pressure fine water mist injection ports arranged on the body; Wherein, the flame retardant system also includes a fixing system; The fixing system comprises a plurality of mutually parallel beams, and a slide rail is arranged on the upper side of the beams; Matching blocks matching with the slide rail are arranged at both ends of the injection assembly, and a plurality of the injection assemblies are slidably connected with the slide rail through the matching blocks and are arranged between two parallel beams.

2. The high and low temperature environment chamber drum test system according to claim 1 is characterized in that: The crossbeam is hollowed out.

3. The high and low temperature environment chamber drum test system according to claim 2 is characterized in that: There are four crossbeams.

4. The high and low temperature environment chamber drum test system according to claim 3 is characterized in that: There are four groups of injection components, and the four groups of injection components are distributed between four beams in a one-to-two-to-one distribution pattern.

5. The high and low temperature environment chamber drum test system according to claim 4 is characterized in that: The crossbeam is provided with a plurality of fixing grooves, and the drum test bench is provided with connecting pieces matched with the fixing grooves.

6. The high and low temperature environment chamber drum test system according to claim 5, characterized in that: The injection assembly also includes a connecting pipe, the body includes an upper part and a lower part, the upper part is a quadrangular pyramid structure, and the carbon dioxide injection port and the high-pressure fine water mist injection port are arranged on the upper surface and the side surface of the upper part; The lower connecting pipe is arranged in the lower part and is connected with the carbon dioxide injection port and the high-pressure fine water mist injection port.

7. The high and low temperature environment chamber drum test system according to claim 6, characterized in that: The carbon dioxide injection port and the high-pressure water mist injection port are arranged alternately.

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