CN210741865U - Test auxiliary device and test system for testing heat dissipation performance of whole automobile - Google Patents
Test auxiliary device and test system for testing heat dissipation performance of whole automobile Download PDFInfo
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- CN210741865U CN210741865U CN201921845783.8U CN201921845783U CN210741865U CN 210741865 U CN210741865 U CN 210741865U CN 201921845783 U CN201921845783 U CN 201921845783U CN 210741865 U CN210741865 U CN 210741865U
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Abstract
The utility model discloses an experimental auxiliary device and test system for testing whole car heat dispersion of car belongs to car cooling system technical field. The radiator comprises a radiator and an outer frame used for bearing the gravity of the radiator, wherein two sides of the radiator are respectively provided with a guide plate and a baffle plate, the baffle plate is vertical to a longitudinal section A-A of the radiator, an included angle theta is formed between the guide plate and the longitudinal section A-A of the radiator, theta is larger than 0 degree and smaller than 90 degrees, the guide plates are two, and the guide plates are symmetrically distributed along the longitudinal section A-A. The auxiliary test device can be used for simulating different air inlets of the air inlet grille of the front cabin of the vehicle and the heat dissipation environment of the fuel cell automobile corresponding to the air inlets under different opening ratio coefficients so as to verify whether the selection of the radiator, the design of the air inlet grille and the like are reasonable and feasible.
Description
Technical Field
The utility model relates to a testing arrangement belongs to car cooling system technical field, specifically relates to an experimental auxiliary device and test system for testing whole car heat dispersion of fuel cell car.
Background
The fuel cell electric automobile is considered as the final development direction of the new energy automobile due to the advantages of long driving range, convenient fuel filling, performance similar to that of the traditional automobile and the like. The overall heat dissipation system of a fuel cell vehicle generally comprises two parts: part of the heat source comes from a fuel cell stack (formed by stacking and combining a plurality of single cells in a series connection mode, hereinafter referred to as an electric stack) and the heat dissipation power is 10-120 kW, and part of the heat source comes from an auxiliary system and comprises a voltage converter, a motor controller, an air compressor controller and a lithium battery. The heat dissipation of the fuel cell stack is a difficult point, because the operating temperature of the stack is generally lower than that of an internal combustion engine, which is generally 85-105 ℃, the heat dissipation performance of a heat dissipation system of a fuel cell electric vehicle needs to be tested.
The radiator is often placed behind the air-inlet grille of car, because air-inlet grille and car front face design often involve appearance characteristics such as automobile body pleasing to the eye, degree of discernment, brand, the grid influences the radiating effect of whole car greatly, and the different blocks of car front face and air-inlet grille have important influence to air flow. However, in the prior art, no report is provided for simulating the whole heat dissipation performance of the fuel cell automobile by adopting a test auxiliary device to adjust the opening ratio of the automobile front cabin heat dissipation system to simulate the front cabin air inlet environment.
Disclosure of Invention
In order to solve the technical problem, the utility model provides an experimental auxiliary device and test system for testing whole car heat dispersion of fuel cell car. The test auxiliary device can be used for simulating different air inlets of the front cabin air inlet grille and the heat dissipation environment of the fuel cell automobile corresponding to the air inlets under different opening ratio coefficients so as to verify whether the selection of the radiator, the grille design of the air inlet grille and the like are reasonable and feasible.
In order to realize the purpose, the utility model discloses an experimental auxiliary device for testing whole car heat dispersion of fuel cell car, it includes the radiator and is used for bearing the outer frame of radiator gravity, the both sides of radiator are equipped with guide plate and baffle respectively, the baffle is perpendicular with the longitudinal section A-A of radiator, possess contained angle theta between the longitudinal section A-A of guide plate and radiator, 0 degrees theta < 90, and the guide plate is two, and each guide plate is along longitudinal section A-A symmetric distribution. The two guide plates simulate an air guide structure at the rear part of an automobile air inlet grille, the guide plates are preferably square thin plates, and the thickness and the specific size of the guide plates are not specially limited. The baffle simulates an automobile air inlet grille, the baffle and the outer frame are preferably connected in a detachable mode, and different air inlet areas and the frontal windward area of the radiator are adjusted by replacing baffles with different widths. The baffle is preferably a square thin plate, and the thickness and the specific size of the baffle are not particularly limited.
Furthermore, the outer frame is provided with a sliding chute for the guide plate to slide relative to the radiator, and the length L of the sliding chute is equal to the width dr of the radiator.
Furthermore, a rotating shaft is further arranged on the outer frame and connected with the side edge of the guide plate, and the guide plate rotates around the rotating shaft and forms an included angle theta of 0-45 degrees with the longitudinal section A-A of the radiator. That is, each guide plate can move along the horizontal direction of the outer frame and can rotate along the rotating shaft, wherein the included angle theta is a guide angle, the opening ratio coefficient is increased along with the increase of the guide angle theta under the condition that other parameters are controlled to be unchanged, but when the guide angle theta reaches a certain size, the opening ratio coefficient is almost unchanged, so that the preferable guide angle theta is 0-45 degrees, and the theta does not contain 0 degree. And the utility model discloses thereby select the guide plate can follow its pivot and realize different opening ratio at certain angle within range internal rotation.
Furthermore, the radiator is arranged close to the baffle, and the distance between the radiator and the baffle is smaller than the distance between the radiator and the sliding groove.
Further, the outer frame is enclosed by the longitudinal supporting legs and the transverse connecting frames to form a frame for accommodating and supporting the radiator.
Further, the height of the longitudinal supporting legs can be adjusted according to the height of the radiator and the height requirement of a subsequent actual simulation test environment. I.e. each longitudinal support leg is preferably a telescopic screw. The telescopic lead screw can support the radiator by the supporting seat arranged at the bottom after the length is adjusted.
Furthermore, the utility model also discloses a test system, it includes air inlet device, air-out device, and is located above-mentioned experimental auxiliary device between the two.
Further, the guide plate of the auxiliary test device faces the air inlet device, and the baffle plate is close to the air outlet device.
Furthermore, a front bending section, a rectifying section and a measuring section are arranged on the air inlet device, and an air speed sensor is arranged on the measuring section and connected with an industrial personal computer.
Furthermore, a horn mouth is arranged on the air outlet device, and an opening of the horn mouth faces the radiator.
Has the advantages that:
the utility model discloses a testing arrangement, its can be convenient be used for simulating the real car heat dissipation environment under the different air inlet area of front deck air inlet grille and the different opening ratio coefficient that corresponds to whether reasonable feasible such as the selection of verification radiator, the bars design of air inlet grille.
Drawings
FIG. 1 is a front view of the experimental support device of the present embodiment;
FIG. 2 is a plan view of the experimental support device of this embodiment;
fig. 3 is a schematic structural diagram of the test system of the present embodiment.
Wherein, each part in the above-mentioned figure is marked as follows:
the air conditioner comprises an outer frame 1 (wherein a guide plate 1.1, a baffle plate 1.2, longitudinal support legs 1.3, a first transverse connecting frame 1.4 (wherein a chute 1.41 and a rotating shaft 1.42), a second transverse connecting frame 1.5), a radiator 2, an air inlet device 3 (wherein a front bending section 3.1, a rectifying section 3.2 and a measuring section 3.3) and an air outlet device 4 (wherein a bell mouth 4.1);
longitudinal section A-A;
the width dt of the baffle plate;
a radiator width dr;
the outer frame width w.
Detailed Description
The utility model discloses a test auxiliary device for testing the whole heat dissipation performance of a fuel cell automobile, which comprises a radiator 2 and an outer frame 1 for bearing the gravity of the radiator 2, the outer frame 1 is also used for bearing the gravity and the pulling force generated by the waterway connected with the radiator 2, as shown in fig. 1, the outer frame 1 of the embodiment is preferably enclosed by a longitudinal supporting leg 1.3 and a transverse connecting frame to form a frame for accommodating the radiator 2, wherein the transverse connecting frames comprise first transverse connecting frames 1.4 arranged in parallel and second transverse connecting frames 1.5 arranged in parallel, each first transverse connecting frame 1.4 is connected with each second transverse connecting frame 1.5 end to form a frame for further accommodating the radiator 2, the longitudinal supporting legs 1.3 are preferably telescopic screw rods, so as to ensure that the height of the longitudinal supporting legs 1.3 can be adjusted according to the height of the radiator 2 and the height requirement of the subsequent actual simulation test environment. The bottom end of the longitudinal supporting leg 1.3 is provided with a supporting seat.
In addition, as can be seen from fig. 2, the flow guide plate 1.1 and the baffle plate 1.2 are respectively disposed on two sides of the heat sink 2, and in this embodiment, the flow guide plate 1.1 and the baffle plate 1.2 are preferably disposed on each first transverse connecting frame 1.4; the baffle 1.2 is vertical to the longitudinal section A-A of the radiator 2, an included angle theta is formed between the guide plate 1.1 and the longitudinal section A-A of the radiator 2, theta is larger than 0 degree and smaller than 90 degrees, the guide plates 1.1 are two, and the guide plates 1.1 are symmetrically distributed along the longitudinal section A-A. The height of the deflector 1.1 and the height of the baffle 1.2 are consistent and are both larger than the height of the radiator 2. Wherein, two guide plates 1.1 simulate the gaseous water conservancy diversion structure in car air-intake grid rear portion, and preferred guide plate 1.1 is square sheet metal, and its thickness and specific size do not do special restriction requirement. Baffle 1.2 simulation car air-intake grille, its with outer frame 1 preferred with the connected mode of detachable mode, the preferred bolted connection of this embodiment, when the different radiator frontal windward area of needs simulation, only need dismantle and change the baffle 1.2 that possesses different width, preferred baffle 1.2 is the square sheet metal, its thickness and specific size do not do the special restriction requirement.
As can be seen from fig. 1, the longitudinal section a-a is a section of the heat sink 2 at the middle position. In the present embodiment, the heat sink 2 is more preferably a regular square body.
For simulating the water conservancy diversion structure on the fuel cell electric automobile, and know that the water conservancy diversion angle can influence the opening ratio of car front deck cooling system, the utility model discloses the selection be equipped with on the outer frame 1 and supply guide plate 1.1 to carry out gliding spout 1.41 for radiator 2, the length L of spout 1.41 equals with the width dr of radiator 2. Meanwhile, the outer frame 1 is further provided with a rotating shaft 1.42, the rotating shaft 1.42 is connected with the side edge of the guide plate 1.1, and the guide plate 1.1 rotates around the rotating shaft 1.42 and forms an included angle theta of 0-45 degrees with the longitudinal section A-A of the radiator 2. That is, each guide plate 1.1 can move along the horizontal direction of the outer frame 1 and can rotate along the rotating shaft 1.42, wherein the included angle θ is a guide angle, and under the condition of controlling other parameters to be unchanged, the opening ratio coefficient increases along with the increase of the guide angle θ, but when the guide angle θ reaches a certain size, the opening ratio coefficient is almost unchanged, so that the guide angle θ is preferably 0-45 ° and does not contain 0 °.
It can also be known from fig. 2 that the heat sink 2 is disposed close to the baffle 1.2, and the distance between the heat sink 2 and the baffle 1.2 is smaller than the distance between the heat sink 2 and the chute 1.41.
Since the width of the baffle, the width of the outer frame, the width of the radiator and the diversion angle theta all influence the opening ratio,
the width dt of the baffle 1.2 is 400mm in the embodiment; the width w of the outer frame 1 is 200 mm; the width dr of the radiator 2 is 450-850 mm. At the moment, the opening ratio coefficient is controlled to be 0.1-0.8, when the baffle plates 1.2 with different widths are needed to actually simulate the area of an air inlet grille of a vehicle, only the baffle plates 1.2 need to be replaced, and the baffle plates 1.2 are preferably connected with the outer frame 1 through bolts.
As can be seen from the combination of FIG. 3, the invention also discloses a testing system, which comprises an air inlet device 3, an air outlet device 4 and a test auxiliary device arranged between the air inlet device and the air outlet device. The air intake device 3 is provided with a front bending section 3.1, a rectifying section 3.2 and a measuring section 3.3, and the measuring section 3.3 is provided with an air speed sensor which is connected with an industrial personal computer. The air outlet device 4 is provided with a bell mouth 4.1, and the opening of the bell mouth faces the radiator 2.
Specifically, a small wind tunnel is adopted to simulate a specific real automobile working condition and a front cabin heat dissipation environment. High-speed airflow generated by the fan turns wind into a straight channel through the front turning section 3.1, and after turning, the wind flows through the rectifying section 3.2 to be simply stabilized and then enters the measuring section 3.3. The measuring section 3.3 is provided with a wind speed sensor, and transmits a wind speed value to an industrial personal computer in an electric control mode. The industrial personal computer and the wind speed sensor form closed-loop control on wind speed, so that real working conditions are simulated better. Put this experimental auxiliary device into between measurement section 3.3 and the air-out device 4, admit air at last and collect through horn mouth 4.1, discharge outdoor. The whole radiating air duct simulates the radiating environment of the actual automobile front cabin, and the effects of the radiator and the radiating subsystem under the dynamic working condition are inspected. After the auxiliary test device is added, the test environment is more real, and the test reliability is higher.
The above examples are merely preferred examples and are not intended to limit the embodiments of the present invention. In addition to the above embodiments, the present invention has other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (10)
1. The utility model provides an experimental auxiliary device for testing whole car heat dispersion of fuel cell car which characterized in that: the radiator comprises a radiator and an outer frame used for bearing the gravity of the radiator, wherein two sides of the radiator are respectively provided with a guide plate and a baffle plate, the baffle plate is vertical to the longitudinal section A-A of the radiator, an included angle theta is formed between the guide plate and the longitudinal section A-A of the radiator, theta is larger than 0 degree and smaller than 90 degrees, the guide plates are two, and the guide plates are symmetrically distributed along the longitudinal section A-A.
2. The auxiliary device for testing the heat dissipation performance of the whole fuel cell automobile according to claim 1, wherein: the outer frame is provided with a sliding groove for the guide plate to slide relative to the radiator, and the length L of the sliding groove is equal to the width dr of the radiator.
3. The auxiliary device for testing the heat dissipation performance of the whole fuel cell automobile according to claim 1, wherein: the outer frame is further provided with a rotating shaft, the rotating shaft is connected with the side edge of the guide plate, the guide plate rotates around the rotating shaft and forms an included angle theta of 0-45 degrees with the longitudinal section A-A of the radiator, and the included angle theta does not contain 0 degree.
4. The auxiliary device for testing the heat dissipation performance of the whole fuel cell automobile according to claim 1, wherein: the radiator is close to the baffle, the distance between the radiator and the baffle is smaller than the distance between the radiator and the sliding groove, and the baffle is fixedly connected with the outer framework in a detachable mode.
5. The auxiliary device for testing the heat dissipation performance of the fuel cell automobile as claimed in any one of claims 1 to 4, wherein: the outer frame is surrounded by the longitudinal supporting legs and the transverse connecting frames to form a frame for accommodating and supporting the radiator.
6. The auxiliary device for testing the heat dissipation performance of the whole fuel cell automobile as claimed in claim 5, wherein: the height of the longitudinal support legs can be adjusted according to the height of the radiator.
7. A test system, comprising an air inlet device, an air outlet device, and the test auxiliary device of claim 1 between the air inlet device and the air outlet device.
8. The test system of claim 7, wherein: the guide plate of the test auxiliary device is right opposite to the air inlet device, and the baffle is close to the air outlet device.
9. The test system of claim 7, wherein: the air inlet device is provided with a front bending section, a rectifying section and a measuring section, the measuring section is provided with an air speed sensor, and the air speed sensor is connected with an industrial personal computer.
10. The test system of claim 7, wherein: the air outlet device is provided with a horn mouth, and the opening of the horn mouth faces the radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921845783.8U CN210741865U (en) | 2019-10-30 | 2019-10-30 | Test auxiliary device and test system for testing heat dissipation performance of whole automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921845783.8U CN210741865U (en) | 2019-10-30 | 2019-10-30 | Test auxiliary device and test system for testing heat dissipation performance of whole automobile |
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| CN210741865U true CN210741865U (en) | 2020-06-12 |
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| CN201921845783.8U Active CN210741865U (en) | 2019-10-30 | 2019-10-30 | Test auxiliary device and test system for testing heat dissipation performance of whole automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199584A (en) * | 2021-11-30 | 2022-03-18 | 重庆长安汽车股份有限公司 | Engine heat balance test bench |
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2019
- 2019-10-30 CN CN201921845783.8U patent/CN210741865U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199584A (en) * | 2021-11-30 | 2022-03-18 | 重庆长安汽车股份有限公司 | Engine heat balance test bench |
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