CN115283023A

CN115283023A - Test chamber

Info

Publication number: CN115283023A
Application number: CN202210914469.0A
Authority: CN
Inventors: 运伟国; 张俨; 叶连生; 李晓鹏
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd; Zhejiang Remote Commercial Vehicle R&D Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd; Zhejiang Remote Commercial Vehicle R&D Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-04

Abstract

The invention discloses a test chamber which comprises a base platform, a chamber body, a test bed and a fire-fighting device, wherein the chamber body is covered above the base platform; the test bed is positioned on the base platform, the test bed and/or the base platform are/is provided with a water collecting tank, and the water collecting tank is also communicated with the outer side of the cabin body; the fire control unit is located the cabin body, the fire control unit is including fire control pipeline and the shower head that is linked together, the shower head orientation the test bench sets up. The technical scheme of the invention can improve the fire-fighting effect of the test chamber.

Description

Test chamber

Technical Field

The invention relates to the technical field of test cabins, in particular to a test cabin.

Background

The existing fire-fighting schemes of the test cabin have the defects that only a plurality of dry powder fire extinguishers are generally configured, and if a test object or electrical equipment is subjected to a rapid and violent fire, the dry powder fire extinguishers cannot completely suppress and extinguish the fire, for example, when a power battery of a new energy automobile fires due to thermal runaway, if a conventional fire extinguishing means such as the dry powder fire extinguishers is adopted, the fire extinguishing effect is very limited, and further, the personnel safety and the property safety are damaged. Therefore, it is desirable to provide a new fire protection solution for a test chamber to improve or solve the above technical problems.

Disclosure of Invention

The invention mainly aims to provide a test chamber, aiming at improving the fire-fighting and fire-extinguishing effect of the test chamber.

In order to achieve the above object, the test chamber provided by the invention comprises:

a base station;

the cabin body is covered above the base station;

the test bed is positioned on the base platform, the test bed and/or the base platform are/is provided with a water collecting tank, and the water collecting tank is also communicated with the outer side of the cabin body; and

the fire control unit is located the cabin body, the fire control unit is including the fire service pipe way and the shower head that are linked together, the shower head orientation the test bench sets up.

Optionally, the base station be equipped with the pit that the water catch bowl is linked together, the test bench is including locating the bearing apron of pit top and being located rotary drum test device in the pit, the bearing apron is equipped with dodges the hole, rotary drum test device include the rotary drum, and drive connection in the driving piece of rotary drum, the rotary drum appears in dodge the hole.

Optionally, the drum test device further includes a power distribution cabinet and a waterproof cover which are arranged in the pit, the power distribution cabinet is electrically connected with the driving member, and the waterproof cover at least covers the power distribution cabinet and the driving member.

Optionally, a water collecting pit is arranged on the pit bottom wall of the pit, the water collecting pit is communicated with the outer side of the cabin body, the test chamber further comprises a confluence pipeline, and the confluence pipeline is communicated between the water collecting tank and the water collecting pit.

Optionally, the test chamber further comprises a drain pump, the drain pump is communicated with the bottom of the sump, and the drain pump is used for draining accumulated water in the sump out of the test chamber.

Optionally, the bearing cover plate includes a first plate section, a second plate section and a third plate section that are connected in sequence, the avoidance hole is formed in the second plate section, the first plate section and/or the third plate section are provided with grid holes, and the water collection tank includes a first trough section located below the grid holes.

Optionally, the header pipe comprises a first header pipe located within the sump, the first header pipe extending downwardly from the first trough section to the sump.

Optionally, the test chamber further comprises an air conditioning device and a temperature sensor which are electrically connected with each other, the temperature sensor is arranged in the chamber body, and the air conditioning device is used for refrigerating or heating air in the chamber body; a pit heat insulation structure is arranged on the pit wall of the pit, and a pit heat insulation structure is arranged on the pit wall of the water collecting pit.

Optionally, the sump further comprises a second trough section, the second trough section being located at an upper side edge of the pit.

Optionally, the second groove segment is configured in an annular configuration.

Optionally, the confluence pipeline further comprises a second confluence pipe arranged on the base platform, and the second confluence pipe extends downwards from the second groove section to the water collecting pit.

Optionally, a groove section heat insulation structure is arranged on a groove wall of the second groove section.

Optionally, the number of the spray headers is at least two, and at least two spray headers are distributed on two opposite sides of the test bed.

Optionally, the showerhead is configured as a fire monitor.

Optionally, the shower head is movably connected to the cabin, and the fire fighting device further includes a flexible pipe connected between the shower head and the fire fighting pipeline.

Optionally, the test chamber further includes a refrigeration device and a temperature sensor electrically connected to each other, the temperature sensor is disposed in the chamber body, the refrigeration device is configured to refrigerate air in the chamber body, the chamber body includes a covering plate and a heat insulation layer disposed on an outer side of the covering plate, the fire fighting device further includes the first valve communicated between the fire fighting pipeline and the spray header, and the fire fighting pipeline and the first valve are disposed on an outer side of the heat insulation layer.

Optionally, the fire fighting device further comprises a liquid storage tank and a second valve communicated between the liquid storage tank and the fire fighting pipeline, and the liquid storage tank is used for storing anti-freezing liquid.

Optionally, the second valve is configured as an electrically operated valve and is electrically connected to the temperature sensor.

Optionally, a liquid outlet is arranged at the bottom of the liquid storage tank, the liquid outlet is communicated with the second valve, and the ground clearance of the liquid outlet is greater than the ground clearance of the fire-fighting pipeline.

Optionally, the first valve is configured as an electrically actuated valve, and the test chamber further comprises a fire detector electrically connected to the first valve, the fire detector being configured to detect a fire condition within the chamber.

Optionally, the test chamber further comprises a heating device electrically connected to the temperature sensor, and the heating device is used for heating air in the chamber body.

According to the technical scheme of the invention, when a fire disaster occurs in the test cabin, for example, a test object such as a vehicle and a power battery catches a fire on the test bed, fire fighting water in the fire fighting pipeline is sprayed out through the spray header to cover a fire catching area on the test object and reduce the temperature of the fire catching area, so that the purpose of quickly extinguishing the fire is achieved. And the hydroenergy that falls to on base station and the test bench can in time flow in the water catch bowl to final discharge test chamber, thereby avoid appearing ponding on base station and test bench, lead to the electrical equipment of base station and test bench to suffer from the water invasion and break down, the problem of incident such as personnel's electric shock appears even. That is, the technical scheme of the invention can improve the fire-fighting effect and efficiency of the test chamber and avoid the harm of fire to personnel safety and property safety.

Drawings

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

FIG. 1 is a schematic structural view of an embodiment of a test chamber of the present invention;

FIG. 2 is another schematic view of the test chamber of FIG. 1;

fig. 3 is a schematic view of a further configuration of the test chamber of fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Base station	42	Converging pipeline
11	Pit	421	First collecting pipe
				12	Water gathering pit	422	Second collecting pipe
20	Cabin body	43	Water discharge pump
				21	Covering plate	50	Fire fighting device
22	Heat insulation layer	51	Fire-fighting pipeline
				30	Test bed	52	Spray head
31	Bearing cover plate	53	Flexible pipe
				311	Grid hole	54	Liquid storage tank
32	Rotary drum test device	55	First valve
				41	Water collecting tank	56	Second valve
411	First groove section	57	Third valve
				412	Second groove section	91	Vehicle with a steering wheel

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one of the feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a test chamber, please refer to fig. 1 to 3, wherein fig. 1 is a schematic structural view of an embodiment of the test chamber of the invention, which mainly shows the structure of a fire fighting device (in a front view); FIG. 2 is another schematic view of the test chamber of FIG. 1, showing the structure of the base and the test bed (in a side view); fig. 3 is a schematic view of another structure of the test chamber of fig. 1, which mainly shows the structure of the base and the test bed (in a top view). In one embodiment of the invention, the test chamber comprises:

a base 10;

a cabin 20 covering the base 10;

the test bed 30 is positioned on the base platform 10, the test bed 30 and/or the base platform 10 are/is provided with a water collecting tank 41, and the water collecting tank 41 is also communicated with the outer side of the cabin body 20; and

the fire fighting device 50 is arranged on the cabin body 20, the fire fighting device 50 comprises a fire fighting pipeline 51 and a spray head 52 which are communicated, and the spray head 52 is arranged towards the test bed 30.

In the technical scheme of the invention, when a fire disaster occurs in the test chamber, for example, a test object such as a vehicle 91 and a power battery catches a fire on the test bed 30, fire water in the fire fighting pipeline 51 is sprayed out through the spray header 52 to cover a fire area on the test object and reduce the temperature of the fire area, so that the aim of quickly extinguishing the fire is fulfilled. The water falling onto the base station 10 and the test bed 30 can flow into the water collecting tank 41 in time and is finally discharged out of the test chamber, so that the problems that the electrical equipment of the base station 10 and the test bed 30 is invaded by water and breaks down, even the safety accidents such as electric shock of personnel occur due to the fact that the accumulated water is generated on the base station 10 and the test bed 30 are avoided. That is, the technical scheme of the invention can improve the fire-fighting effect and efficiency of the test chamber and avoid the harm of fire to personnel safety and property safety.

The test chamber according to the technical scheme of the invention can be applied to a complete vehicle test, such as a drum test of a vehicle, and can also be applied to a part test, such as a performance test of a power battery. It is worth mentioning that, for the whole vehicle test of new energy vehicles using power batteries, or the performance test of power batteries, when the power batteries cause fire due to thermal runaway and other reasons, if a conventional fire extinguishing means such as a dry powder fire extinguisher is used, the fire extinguishing effect is very limited. According to the technical scheme, a large amount of fire-fighting water is sprayed to the power battery on fire, so that heat in the area on fire can be taken away quickly, the temperature of the area on fire can be reduced, and a good fire-extinguishing effect can be achieved.

Referring to fig. 3, in order to improve the fire extinguishing efficiency and effect of the fire-fighting water jet, in one embodiment, at least two spray headers 52 are provided, and at least two spray headers 52 are distributed on two opposite sides of the test bed 30. So, fire water is sprayed to the area of starting a fire in the test cabin simultaneously through a plurality of shower heads 52, can cover the area of starting a fire better to effectively promote fire extinguishing efficiency and effect of fire control unit 50. Specifically, in the present embodiment, four shower heads 52 are provided, two shower heads 52 are provided on the left side of the test stand 30, and two shower heads 52 are provided on the right side of the test stand 30. Of course, in other embodiments, only one showerhead 52 may be provided, or multiple showerheads 52 may be provided on the same side of the test bed 30.

In one embodiment, the showerhead 52 is configured as a fire monitor. Therefore, the water column sprayed by the fire monitor has the advantage of large water flow, so that heat on a fire area can be taken away rapidly in a targeted manner. Specifically, in this embodiment, the nozzles of the fire monitor may be rotated relative to the test stand 30, thereby enabling a larger spray coverage area for a single fire monitor. Of course, in other embodiments, the showerhead 52 may also be configured as a spray manifold located above the test stand 30, the spray manifold comprising a plurality of successively folded manifold sections, the underside of which is provided with a plurality of nozzles.

To increase the spray coverage area of a single spray header 52, in one embodiment, the spray header 52 is movably connected to the tank 20, and the fire apparatus 50 further includes a flexible pipe 53 connected between the spray header 52 and the fire-fighting piping 51. In this manner, the showerhead 52 can translate or oscillate above the test stand 30, thereby enabling its spray coverable area to be increased. It should be noted that the flexible tube 53 means that the structure of the pipeline has flexibility and bending deformation, and specifically, in this embodiment, the flexible tube 53 is configured as a stainless steel braided hose. In this embodiment, optionally, the cabin 20 is provided with a slide rail extending along the length direction of the cabin 20, and the shower head 52 is slidably connected to the slide rail. Of course, in other embodiments, a rubber hose may be used, or a steel pipe, a plastic pipe, or the like, which is not bendable and deformable may be used.

Referring to fig. 1, in an embodiment, the test chamber further includes a refrigeration device (not shown in the drawings) and a temperature sensor (not shown in the drawings) electrically connected to each other, the temperature sensor is disposed in the cabin 20, the refrigeration device is configured to refrigerate air in the cabin 20, the cabin 20 includes a cover plate 21 and an insulating layer 22 disposed on an outer side of the cover plate 21, the fire fighting device 50 further includes a first valve 55 connected between the fire fighting pipeline 51 and the shower head 52, and the fire fighting pipeline 51 and the first valve 55 are disposed on an outer side of the insulating layer 22. It should be noted that the covering plate 21, the base 10 and the test bed 30 together enclose a test space, and a tester and a test object such as a vehicle 91 can move in the test space; the outer side of the cover plate 21 refers to the side of the cover plate 21 remote from the test stand 30, and the outer side of the insulation layer 22 refers to the side of the insulation layer 22 remote from the cover plate 21. That is, the test chamber in the present embodiment can be used to perform a low temperature test, for example, in a low temperature test of a whole vehicle, the temperature inside the cabin 20 is usually set to be below zero (i.e. 0 ℃), so that the fire fighting pipe 51 and the first valve 55 are both disposed outside the insulating layer 22, and the fire fighting water inside the fire fighting pipe 51 and the first valve 55 can be prevented from being frozen by the influence of low temperature air, so that the fire fighting water inside the fire fighting pipe 51 can normally flow through the first valve 55 and flow to the shower head 52 and be sprayed out from the shower head 52 after the first valve 55 is opened due to a fire.

In one embodiment, the insulation layer 22 comprises high density polyurethane foam board, for example, the density can be configured to be between 300Kg/m3 and 400Kg/m3 (kilograms per cubic meter), and the thickness can be configured to be 15cm. Therefore, a good heat insulation effect can be achieved, the heat insulation performance of the test chamber is improved, the power consumption loss of the test chamber during a high-temperature test or a low-temperature test is reduced, and the effects of energy conservation and emission reduction are achieved. Of course, in other embodiments, the insulation layer 22 may also include insulation wool, insulation blankets, and the like.

In one embodiment, the first valve 55 is configured as an electrically operated valve, and the test chamber further includes a fire detector (not shown) electrically connected to the first valve 55 for detecting a fire condition within the chamber 20. So, can automated inspection conflagration and self-starting fire control unit 50 to in time spout out the area of catching a fire, and can make the tester can in time flee from the test chamber and need not go to operate the start-up of fire control unit 50. Specifically, the fire detector may be configured as at least one of a smoke detector, a temperature detector, a flame detector, and a special gas detector. Of course, in other embodiments, it is also possible that the first valve 55 is configured as a manual valve; or the first valve 55 is configured with an electric valve, and the test chamber further comprises a background controller which is electrically connected with the first valve 55 to remotely control the first valve 55.

Referring to fig. 1, in an embodiment, the fire fighting device 50 further includes a storage tank 54 connected to the fire fighting pipeline 51, and the storage tank 54 is used for storing anti-freezing liquid. As described above, when the antifreeze in the reservoir 54 is mixed with the water in the fire-fighting pipe 51 and sprayed to the outside, the antifreeze is not frozen by the low-temperature environment, and is particularly suitable for a fire occurring during a low-temperature test. Specifically, in the present embodiment, the antifreeze is configured as a glycol-water type antifreeze. Of course, in some embodiments, the antifreeze can also be configured as an ethanol-water type antifreeze, a glycerol-water type antifreeze, or the like. In other embodiments, where the test chamber is not to be subjected to sub-zero cryogenic testing, the reservoir 54 may not be provided.

Referring to fig. 1, in one embodiment, the fire fighting device 50 further includes a second valve 56, and the second valve 56 is connected between the tank 54 and the fire fighting pipeline 51. In this way, the second valve 56 is opened only during the low-temperature test, and the second valve 56 can be selectively closed in other time periods to interrupt the supply of the antifreeze to the fire-fighting pipeline 51, so that the problem that the antifreeze is used when the temperature in the cabin 20 is above zero and the material of the antifreeze is wasted is avoided. Of course, in other embodiments, the second valve 56 may not be provided.

In one embodiment, the second valve 56 is configured as an electrically actuated valve and is electrically connected to a temperature sensor. Thus, when the temperature sensor detects that the temperature in the cabin body 20 drops to zero or below, that is, the second valve 56 is automatically opened when the low-temperature test is performed, so that the convenience of the antifreeze solution is improved, and the intelligence of the test cabin is improved. Specifically, in the present embodiment, a liquid outlet is disposed at the bottom of the liquid storage tank 54, the liquid outlet is communicated with the second valve 56, and the height from the ground of the liquid outlet is greater than the height from the ground of the fire fighting pipeline 51. In this way, the hydrostatic pressure difference of the antifreeze in the reservoir 54 can be utilized to allow the antifreeze to smoothly pass through the second valve 56 and enter the fire-fighting pipeline 51. Of course, the fire-fighting piping 51 of the test chamber may also be provided with a third valve 57 at the location of connection to the main water inlet piping, so that maintenance of the fire-fighting equipment 50 on the test chamber can be carried out, or the third valve 57 can be selectively closed after the fire has been extinguished. Of course, in some embodiments, the second valve 56 may also be configured as a manual valve. In other embodiments, the fire fighting device 50 may further comprise an electric pump connected between the liquid outlet and the second valve 56, so that the antifreeze solution can be pumped into the fire fighting pipeline 51 by the electric pump regardless of whether the liquid outlet is at a height above the ground greater than the height above the fire fighting pipeline 51.

In one embodiment, the test chamber further includes a heating device (not shown) electrically connected to the temperature sensor, the heating device being configured to heat air within the chamber 20. That is, this test chamber can be used to high temperature test, low temperature test and rotary drum test, for example the high temperature test of whole car or high low temperature alternation test, so, can enrich the function of this test chamber and improve its convenience in utilization and flexibility. Specifically, in the present embodiment, the heating device and the cooling device are configured in the same configuration, and for example, the principle and configuration of the cooling and heating circuits of the current main-stream air conditioner can be referred to. Of course, in other embodiments, the heating device and the cooling device may be configured as two independent structures, for example, the heating device includes an electric heating wire and a fan.

Referring to fig. 2 and 3, in an embodiment, the base 10 is provided with a pit 11 communicated with the water collecting tank 41, the test bed 30 includes a supporting cover plate 31 disposed above the pit 11, and a drum test device 32 disposed in the pit 11, the supporting cover plate 31 is provided with an avoiding hole (not shown in the drawings), the drum test device 32 includes a drum and a driving member drivingly connected to the drum, and the drum is exposed from the avoiding hole. That is, the test chamber can also be used for the drum test of the whole vehicle, so that the function of the test chamber can be enriched and the use convenience and flexibility of the test chamber can be improved. Specifically, in the present embodiment, the driving member may be a driving motor, a hydraulic motor, or a pneumatic motor; the opposite two sides of the cabin body 20 are respectively provided with an entry hatch and an exit hatch, the vehicle 91 can enter the test space in the cabin body 20 through the entry hatch, then the driving wheels are parked on the rotary drum to perform the rotary drum test, and the vehicle is exited through the exit hatch after the test is completed. The drive wheels of the vehicle 91 may be two or four wheels without loss of generality, so the drum pairs may be configured to be two or four, of course, in order to enable the drum test apparatus 32 to be adapted to a variety of vehicle models, the drum pairs are typically configured to be four.

In order to protect the important electrical equipment including the driving members, in one embodiment, the drum test rig 32 further comprises a switch cabinet (not shown in the drawings) and a waterproof cover (not shown in the drawings) arranged in the pit 11, the switch cabinet being electrically connected with the driving members, and the waterproof cover at least covering the switch cabinet and the driving members. So, can avoid getting into switch board or driving piece by the water that bearing apron 31 oozed down, lead to these two important electrical equipment to break down, the problem of incident such as personnel's electric shock appears even to improve the life and the safety in utilization in test cabin.

In one embodiment, the ground clearance of the power distribution cabinet is greater than or equal to 25cm, for example, the ground clearance can be set to be 30cm or 35cm; and similarly, the ground clearance of the driving part is more than or equal to 25cm. It should be noted that the ground clearance here refers to the height of the bottom surface of the switch board or the driving member from the bottom wall of the pit 11. So, even more ponding appears in the pit bottom wall of pit 11, can not influence switch board and driving piece yet. Of course, in other embodiments, the switch board and the driving element may be disposed on the bottom wall of the pit 11, and water baffles are annularly disposed around the switch board and the driving element, and the height of the water baffles is configured to be greater than or equal to 20cm.

Referring to fig. 2 and 3, in some embodiments, a water collecting pit 12 may be further disposed on a pit bottom wall of the pit 11, the water collecting pit 12 is communicated with an outer side of the cabin body 20, the test cabin further includes a collecting pipe 42, and the collecting pipe 42 is communicated between the water collecting tank 41 and the water collecting pit 12. That is, the water in the sump 41 directly arranges to sump 12 through converging pipe 42, arranges to the outside of test chamber via sump 12 again, so, can avoid the problem that leads to the water droplet to splash everywhere when sump 41 directly drains towards pit 11 to through the fire water after sump 12 centralized management uses, can avoid the problem that ponding appears in the pit bottom wall of pit 11. Of course, in other embodiments, the water collection pit 12 may not be provided, the water in the water collection tank 41 is directly drained into the pit 11, and the fitting gap between the supporting cover plate 31 and the base 10 may be penetrated downward, and the water is drained out of the test chamber through the pit 11.

Referring to fig. 2, in an embodiment, the test chamber further includes a drain pump 43, the drain pump 43 is connected to the bottom of the sump 12, and the drain pump 43 is used for draining the accumulated water in the sump 12 to the outside of the test chamber. In this way, the drainage pump 43 can discharge the accumulated water in the water collecting pit 12 in time, and during the low-temperature test, the flow speed and the kinetic energy of the water flow can be improved, so as to avoid the problem that the water flow is influenced by the low-temperature environment and freezes, and ensure that the accumulated water can be discharged smoothly. It will be appreciated that slower water flow rates may gradually freeze and clog the flow conduits.

In an embodiment, a pit thermal insulation structure is arranged on the pit wall of the pit 11, and a pit thermal insulation structure is arranged on the pit wall of the water collecting pit 12. Wherein, the pit wall includes pit diapire and pit lateral wall, that is, all lay insulation construction in the large tracts of land exposed area of pit 11 and sump 12, can avoid the test chamber during high temperature test or low temperature test, hot air in the cabin body 20 carries out the heat exchange with the pit wall of pit 11 and sump 12 and leads to the heat to run off fast, or cold air in the cabin body 20 carries out the heat exchange with the pit wall of pit 11 and sump 12 and leads to the problem that the temperature rises fast, thereby can improve the thermal insulation performance of test chamber, and reduce the power consumption loss of test chamber during high temperature test or low temperature test, in order to realize energy saving and emission reduction effect. Specifically, in the present embodiment, the foundation 10 is configured as a concrete foundation, that is, the pit 11 and the puddle 12 are formed by excavating on the ground, and then concrete is laid on the outer surfaces of the ground, the pit 11, and the puddle 12. Of course, in some embodiments, the foundation 10 may also be a concrete structure platform protruding from the ground, and the pit 11 and the sump 12 are both located above the ground. In other embodiments, the base 10 may be a frame structure formed by assembling a metal bracket and a metal plate.

Specifically, pit insulation construction and sump insulation construction's structural style has the multiple, for example, in an embodiment, pit insulation construction includes 11 mounting panels in pit and 11 heated boards in pit, and 11 heated boards in pit are located between 11 mounting panels in pit and 11 pit's the pit wall, and sump insulation construction includes sump mounting panel and sump heated board, and the sump heated board is located between the pit wall of sump mounting panel and sump. That is, the sump mounting plate and the pit 11 mounting plate are exposed to the outside. So, through 11 mounting panels in pit and sump mounting panel, can play the guard action to 11 heated boards in pit and sump heated board. Specifically, optionally, the material of the sump mounting plate and the pit 11 mounting plate may be configured to be a stainless steel material, and the sump insulation board and the pit 11 insulation board may be configured to be a high-density polyurethane foam board. Therefore, the anti-corrosion effect can be achieved, and the service life of the pit heat insulation structure and the water pit heat insulation structure is prolonged. Of course, in other embodiments, only the pit 11 insulation board and the sump insulation board may be laid without the pit 11 mounting board and the sump mounting board; the insulation board can also be configured as insulation cotton, insulation blanket, etc.

Referring to fig. 2 and 3, in an embodiment, the supporting cover plate 31 includes a first plate section, a second plate section and a third plate section connected in sequence, the avoiding hole is disposed in the second plate section, both the first plate section and the third plate section are provided with a grid hole 311, and the water collecting tank 41 includes a first tank section 411 located below the grid hole 311. That is, there are at least two first slot segments 411, at least one first slot segment 411 is disposed on the first plate segment, at least one first slot segment 411 is disposed on the third plate segment, and the first slot segments 411 are disposed corresponding to the grid holes 311. It will be appreciated that when the vehicle 91 is driven over the support deck 31, the second panel section is primarily load bearing and therefore requires greater structural strength, and therefore the grid holes 311 are not provided to ensure structural strength; the first plate section and the third plate section have a secondary bearing function, so that the structural strength of the first plate section and the third plate section can still meet the design requirements after the grid holes 311 are formed in the first plate section and the third plate section. When the vehicle 91 is in a fire during a roll test, the plurality of sprinklers 52 spray fire-fighting water toward the fire area of the vehicle 91, where most of the water drips or splashes on the bearing cover 31 and then flows into the first trough section 411 through the grid holes 311. Thus, the efficiency of collecting and flowing water into the water collecting tank 41 on the supporting cover plate 31 and the base 10 can be improved, the overall drainage efficiency and effect of the test chamber can be improved, and the problem that the accumulated water invades important electrical equipment can be avoided. Of course, in some embodiments, the grid holes 311 may be formed only in the first plate section, or the grid holes 311 may be formed only in the third plate section. In other embodiments, the material of the second plate segment may be configured to be high-strength steel, and the second plate segment is also provided with grid holes 311.

Referring to fig. 2, in an embodiment, the collecting pipe 42 includes a first collecting pipe 421 located in the pit 11, and the first collecting pipe 421 extends downward from the first trough section 411 to the sump 12. Thus, the structure of the confluence pipeline 42 is simple, which is beneficial to reducing the construction cost of the test chamber.

Referring to fig. 2 and 3, only two drums are arranged in the pit 11 in fig. 2, i.e. suitable for a two-wheel-drive vehicle 91 for carrying out a drum test. In an embodiment, the water collection sump 41 further comprises a second sump section 412, the second sump section 412 being arranged at an upper side edge of the pit 11. A second channel section 412 is provided at the edge of the foundation 10 adjacent the pit 11, in particular in embodiments where the foundation 10 is configured as a concrete foundation on the ground, the second channel section 412 being a flow channel excavated in the ground. Therefore, water on the base station 10 and the bearing cover plate 31 can flow into the water collecting tank 41 more quickly and is collected and discharged, so that the problem that a large amount of accumulated water is generated on the base station 10 to cause water to flow randomly around to invade important electrical equipment is avoided, and the service life of the test chamber is prolonged.

It should be noted that only two rotating drums are arranged in the pit 11 in the present embodiment, that is, the present embodiment is suitable for the two-wheel-driven vehicle 91 to perform the drum test, so that the whole vehicle 91 does not completely rest on the supporting cover 31, and a part of the vehicle 91 is located on the base 10; for example, if the front of the vehicle is parked on the base 10 in the case of the rear drive type, the water will first drip or splash onto the base 10 when the shower head 52 sprays water toward the front of the vehicle, and just because the second tank section 412 is provided, the water can be quickly flowed into and disappeared in the second tank section 412. That is, in the test chamber in which only two rotary drums are disposed in the pit 11, the second tank section 412 can provide a good supplementary effect, and together with the first tank section 411, the second tank section and the first tank section can quickly eliminate water on the base 10 and the supporting cover plate 31. Of course, it will be readily understood that for a test cabin with four drums in the pit 11, both for two-drive and four-drive vehicles, the vehicle 91 will normally be entirely resting on the bearing cover 31, so that most of the water will flow onto the bearing cover 31 and into the first trough section 411; on this basis, optionally, the first trough section 411 is provided with at least four, and at least four first trough sections 411 are respectively arranged adjacent to four rotating drums. Of course, whether two or four drums are disposed in the pit 11, the second groove section 412 may be additionally disposed on the upper side edge of the pit 11. Also, the arrangement position and form of the second groove section 412 may be specifically defined as needed, for example, if the head portion of the vehicle 91 rests on the upper side edge of the front end of the pit 11, the second groove section 412 is provided in this area; if the rear portion of the vehicle 91 rests on the upper edge of the rear end of the pit 11, the second trough section 412 is located in this area; or at least two second groove sections 412 are arranged, and the two second groove sections 412 are respectively arranged at the upper side edges of the front end and the rear end of the pit 11.

To increase the efficiency of the second trough section 412 in collecting the flowing water, in one embodiment, the second trough section 412 is configured in an annular configuration. Of course, in other embodiments, the second groove section 412 may be configured as a multi-segment continuously bent and circuitous structure, such as an S-shaped structure.

In one embodiment, the groove wall of the second groove section 412 is provided with a groove section heat insulation structure. Since the second groove section 412 is formed by excavation of the foundation, and the surface area of the groove wall of the second groove section 412 is large, the second groove section 412 cannot participate in heat exchange with the air in the cabin 20. By paving the groove section heat-insulating structure on the groove bottom wall and the groove side wall of the second groove section 412, the heat-insulating property of the test chamber can be improved, and the power consumption loss of the test chamber during a high-temperature test or a low-temperature test is reduced, so that the effects of energy conservation and emission reduction are realized. It can be understood that since the first tank section 411 and the first manifold 421 are both in the pit 11, which do not interfere with the hot or cold air in the nacelle 20 by means of the foundation structure, it is possible to eliminate the tank section heat insulation structure provided on the first tank section 411. Of course, in other embodiments, the second trough section 412 may not be provided with a trough section insulation structure therein; alternatively, a tank section heat insulation structure is laid on the first tank section 411.

In an embodiment, the groove section heat-insulating structure includes a first clamping plate, a second clamping plate, and a groove section heat-insulating plate clamped between the first clamping plate and the second clamping plate, wherein the first clamping plate is exposed to the outside in the second groove section 412. So, the groove section heated board receives the protection of first splint and second splint to it is fixed still to make things convenient for groove section insulation construction to install as a whole. Specifically, in the present embodiment, the first clamping plate and the second clamping plate are both made of stainless steel. Therefore, the corrosion resistance of the groove section heat insulation structure can be improved, and the service life of the groove section heat insulation structure is prolonged. Of course, in some embodiments, the material of the first clamping plate and the second clamping plate can also be configured to be plastic. In other embodiments, only the first clamping plate may be made of stainless steel.

In order to improve the heat insulation performance of the groove section heat insulation plate, in one embodiment, the groove section heat insulation plate is configured as a polyurethane foam plate. Of course, in other embodiments, the groove section heat insulation board may also be heat insulation cotton, heat insulation blanket, etc.

Referring to fig. 2 and 3, in an embodiment, the collecting pipe 42 further includes a second collecting pipe 422 disposed on the base platform 10, and the second collecting pipe 422 extends downward from the second groove section 412 to the sump 12. Thus, the centralized management of the water elimination and prevention is realized by utilizing the water gathering pit 12, thereby being beneficial to shortening the input and use length of the confluence pipeline 42 and reducing the material cost of the confluence pipeline 42. Specifically, in the embodiment where the second trough section 412 is a flow channel formed by excavating on a foundation, the second manifold 422 is implemented by excavating a hole downwards in the bottom wall of the second trough section 412 and embedding a water pipe, that is, the trough section insulation board is provided with an overflowing hole corresponding to the embedded second manifold 422, and the second manifold 422 is installed on the overflowing hole.

In one embodiment, the groove section heat preservation structure is provided with a first overflowing hole corresponding to the second collecting pipe 422, the upper end of the second collecting pipe 422 is installed at the first overflowing hole, and the second collecting pipe 422 is sealed with the first overflowing hole through a first rubber strip. Therefore, the heat insulation performance of the test chamber can be improved, and flowing water can be prevented from permeating into the foundation through a matching gap between the second collecting pipe 422 and the first overflowing hole.

In one embodiment, the sump thermal insulation structure is provided with a second overflowing hole corresponding to the second collecting pipe 422, the lower end of the second collecting pipe 422 is installed at the second overflowing hole, and the second collecting pipe 422 and the second overflowing hole are sealed by a second rubber strip. Therefore, the heat insulation performance of the test chamber can be improved, and flowing water can be prevented from permeating into a foundation through a matching gap between the second collecting pipe 422 and the second overflowing hole.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A test chamber, comprising:

a base station;

the cabin body is covered above the base station;

the test bed is positioned on the base station, the test bed and/or the base station are/is provided with a water collecting tank, and the water collecting tank is also communicated with the outer side of the cabin body; and

the fire fighting device is arranged in the cabin body and comprises a fire fighting pipeline and a spray head which are communicated, and the spray head faces the test bed.

2. A test chamber as claimed in claim 1, wherein the base station is provided with a pit in communication with the sump, the test bed includes a support cover plate disposed above the pit and a drum test device disposed in the pit, the support cover plate is provided with an avoiding hole, the drum test device includes a drum and a driving member drivingly connected to the drum, and the drum is exposed from the avoiding hole.

3. A test chamber as claimed in claim 2, wherein the drum test apparatus further comprises a switch cabinet disposed within the pit and electrically connected to the drive member, and a waterproof cover covering at least the switch cabinet and the drive member.

4. A test chamber as claimed in claim 2, wherein the pit bottom wall of the pit is provided with a sump which communicates with the outside of the chamber body, the test chamber further comprising a junction pipe which communicates between the sump and the sump.

5. A test chamber as claimed in claim 4, further comprising a drain pump in communication with the bottom of the sump, the drain pump being configured to drain standing water from the sump to the outside of the test chamber.

6. A test chamber as claimed in claim 4, wherein the bearing cover plate comprises a first plate section, a second plate section and a third plate section connected in series, the relief hole is provided in the second plate section, the first plate section and/or the third plate section is provided with a grid hole, and the water collection tank comprises a first tank section located below the grid hole.

7. A test chamber as claimed in claim 6, wherein the manifold duct comprises a first manifold pipe located within the sump, the first manifold pipe extending downwardly from the first trough section to the sump.

8. A test chamber as claimed in claim 4, further comprising an air conditioning device and a temperature sensor electrically connected to each other, the temperature sensor being disposed within the chamber body, the air conditioning device being configured to cool or heat air within the chamber body; a pit heat insulation structure is arranged on the pit wall of the pit, and a pit heat insulation structure is arranged on the pit wall of the water collecting pit.

9. A test chamber as claimed in claim 8, wherein the sump further comprises a second sump section located at an upper side edge of the pit.

10. A test chamber as claimed in claim 9, wherein the second channel section is configured in an annular configuration;

and/or the confluence pipeline further comprises a second confluence pipe arranged on the base platform, and the second confluence pipe extends downwards from the second groove section to the water collecting pit;

and/or a groove section heat insulation structure is arranged on the groove wall of the second groove section.

11. A test chamber as claimed in claim 1, wherein there are at least two said spray headers, at least two said spray headers being disposed on opposite sides of said test bed;

and/or the spray header is configured as a fire water monitor;

and/or the spray header is movably connected with the cabin body, and the fire fighting device further comprises a flexible pipe connected between the spray header and the fire fighting pipeline.

12. A test chamber as claimed in any one of claims 1 to 11, wherein the test chamber further comprises a refrigeration device and a temperature sensor electrically connected to each other, the temperature sensor being disposed within the chamber, the refrigeration device being configured to refrigerate air within the chamber, the chamber including a cover plate and an insulating layer disposed on an outer side of the cover plate, the fire-fighting device further including a first valve communicating between the fire-fighting pipe and the shower head, the fire-fighting pipe and the first valve being disposed on an outer side of the insulating layer.

13. A test chamber as claimed in claim 12, wherein the fire apparatus further comprises a reservoir for storing anti-freeze fluid, and a second valve communicating between the reservoir and the fire-fighting piping.

14. A test chamber as claimed in claim 13, wherein the second valve is configured as an electrically operated valve and is electrically connected to the temperature sensor;

and/or a liquid outlet is arranged at the bottom of the liquid storage tank and communicated with the second valve, and the ground clearance of the liquid outlet is greater than that of the fire-fighting pipeline.

15. A test chamber as claimed in claim 12, wherein the first valve is configured as an electrically operated valve, the test chamber further comprising a fire detector electrically connected to the first valve, the fire detector being arranged to detect a fire condition within the chamber;

and/or the test chamber further comprises a heating device electrically connected with the temperature sensor, and the heating device is used for heating the air in the chamber body.