CN117191855A - Testing device and testing method for temperature difference resistance of metal bipolar plate - Google Patents
Testing device and testing method for temperature difference resistance of metal bipolar plate Download PDFInfo
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- CN117191855A CN117191855A CN202311165115.1A CN202311165115A CN117191855A CN 117191855 A CN117191855 A CN 117191855A CN 202311165115 A CN202311165115 A CN 202311165115A CN 117191855 A CN117191855 A CN 117191855A
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- 238000012360 testing method Methods 0.000 title claims abstract description 104
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- 239000007921 spray Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 10
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention relates to the technical field of metal bipolar plates and discloses a testing device and a testing method for temperature difference resistance of metal bipolar plates, wherein the testing device comprises a testing box and an air supply box, and as two groups of hot air storage tanks and cold air storage tanks are respectively arranged on the rear end surface of the air supply box, and piston blocks and second driving racks are arranged in the hot air storage tanks and the cold air storage tanks, when cold air or hot air is rotationally switched along with driving worm wheels, the hot air or cold air is effectively sucked and collected through alternate meshing of a connecting tooth opening and the two second driving racks, hot air or cold air in a first cavity can be rapidly converted, and after one circulation, the collected hot air or cold air can be discharged into the first cavity, so that the gas transmission efficiency is improved to a certain extent.
Description
Technical Field
The invention relates to the technical field of metal bipolar plates, in particular to a testing device and a testing method for temperature difference resistance of a metal bipolar plate.
Background
Metal bipolar plates, also known as current collector plates, are one of the important components of fuel cells, which have the following functions and properties: separating the fuel from the oxidant to prevent gas permeation; collecting and conducting current, and having high conductivity; the gas can be uniformly distributed to the reaction layer of the electrode to carry out electrode reaction by designing and processing a runner; the heat can be discharged, and the temperature field of the battery is kept uniform; corrosion resistance; impact and vibration resistance; the thickness is thin; the weight is light; meanwhile, the cost is low, the machining is easy, the method is suitable for batch manufacturing and the like, and after the metal bipolar plate is processed, the through groove is required to be subjected to temperature difference resistance test.
In the prior art, when the temperature difference resistance test is performed on the metal bipolar plate, cold air or hot air is usually injected into the temperature difference resistance test box in turn respectively, but the injection mode in turn is not only performed after most of the hot air or cold air is discharged, but also the operation time is longer, so that operators are required to spend more manpower and material resources, and meanwhile, the discharged hot air and cold air are wasted to a certain extent, so that the processing cost of users is increased to a certain extent.
Therefore, the existing requirements are not met, and a testing device and a testing method for the temperature difference resistance of the metal bipolar plate are provided.
Disclosure of Invention
The invention provides a testing device and a testing method for temperature difference resistance of a metal bipolar plate, and solves the problems in the background art.
The invention provides the following technical scheme: the test device comprises a test box and an air supply box, wherein the air supply box is arranged at the rear end of the test box, the air supply box is fixedly connected with the test box, and the air supply box is communicated with the test box;
two groups of hot air conveying cylinders and cold air conveying cylinders are respectively arranged on two sides of the air supply box, and the two groups of hot air conveying cylinders and the two groups of cold air conveying cylinders are respectively used for conveying hot air and cold air into the test box;
the rear end of the air supply box is also provided with two groups of hot air storage tanks and cold air storage tanks, and the two groups of hot air storage tanks and the cold air storage tanks are respectively used for storing hot air and cold air in the test box.
As an alternative scheme of the testing device and the testing method for the temperature difference resistance of the metal bipolar plate, the invention comprises the following steps: one end of each group of the hot air conveying cylinder and one end of each group of the cold air conveying cylinder are respectively communicated with an external hot air source and an external cold air source, and the other end of each group of the hot air conveying cylinder and the other end of each group of the cold air conveying cylinder are respectively arranged on one side of the driving worm wheel in a sliding manner;
the driving worm wheel is close to one side surface of the hot air conveying cylinder and one side surface of the cold air conveying cylinder, a movable chute is formed in the surface of one side of the driving worm wheel, the cross section of the movable chute is of an annular structure, one end of each group of hot air conveying cylinder and one end of each group of cold air conveying cylinder respectively slide in the movable chute, and an air outlet through hole is formed in the movable chute.
As an alternative scheme of the testing device and the testing method for the temperature difference resistance of the metal bipolar plate, the invention comprises the following steps: one side surface that hot-blast transport section of thick bamboo is kept away from to the drive worm wheel forms fixed connection with the one side surface of wind-storage jar, just be linked together between drive worm wheel and the wind-storage jar, and the air-out through-hole has also been seted up to the opposite side surface of wind-storage jar, just the connection tooth mouth has still been seted up to the outer department of following of wind-storage jar, simultaneously the top and the below of wind-storage jar all are provided with the second drive rack, two the second drive rack activity respectively sets up inside hot-blast holding tank and cold wind holding tank.
As an alternative scheme of the testing device and the testing method for the temperature difference resistance of the metal bipolar plate, the invention comprises the following steps: the surface of the hot air storage tank far away from the second driving rack is further provided with a first gas one-way valve and a second gas one-way valve respectively, meanwhile, a piston block is movably arranged in the hot air storage tank, one side surface of the piston block is fixedly connected with the second driving rack, the first gas one-way valve and the second gas one-way valve are both connected with an air pipe, and the air inlet directions of the first gas one-way valve and the second gas one-way valve are opposite.
As an alternative scheme of the testing device and the testing method for the temperature difference resistance of the metal bipolar plate, the invention comprises the following steps: the upper part of the driving worm wheel is also provided with a driving worm, the driving worm wheel and the driving worm are meshed with each other, one end of the driving worm is fixedly connected with the output end of the driving motor, the other end of the driving worm is fixedly connected with one end of the connecting rod, one end of the connecting rod is fixedly connected with one end of the driving screw rod, and the other end of the driving screw rod is movably arranged on the inner wall of the third cavity;
the movable block is movably sleeved on the surface of the driving screw rod, a first driving rack is fixedly arranged on one side surface of the movable block, an air supply opening is further formed in one end, close to the first cavity, of the third cavity, the air supply opening and the first cavity are movably provided with a transmission rod, a driving gear is fixedly sleeved at one end of the transmission rod, the driving gear and the first driving rack are meshed with each other, and in addition, the air supply opening is further communicated with the other end of the air pipe.
As an alternative scheme of the testing device and the testing method for the temperature difference resistance of the metal bipolar plate, the invention comprises the following steps: the utility model discloses a wind power generation device, including the transfer line, the transfer line surface is still fixed to be provided with the U type and connects, the one end fixedly connected with that the U type connects deposits the wind pole, it is inside the supply-air outlet to deposit the wind pole equally, and the supply-air outlet is kept away from the transfer line one side surface and is provided with a plurality of connection shower nozzle, and every connection shower nozzle all is linked together with depositing the wind pole simultaneously.
As an alternative scheme of the testing device and the testing method for the temperature difference resistance of the metal bipolar plate, the invention comprises the following steps: the one side that the hot-blast transport section of thick bamboo was kept away from to the third cavity still is provided with the second cavity, the inside conveyer pipe that is provided with of second cavity, the one end and the wind-storage jar of conveyer pipe are linked together, and be linked together between the other end and the supply-air outlet of conveyer pipe, simultaneously the conveyer pipe surface is provided with a plurality of dead levers, and a plurality of dead levers are used for fixed setting up the conveyer pipe in the second cavity inside.
As an alternative scheme of the testing device and the testing method for the temperature difference resistance of the metal bipolar plate, the invention comprises the following steps: the one end that the third cavity is close to the supply-air outlet still is provided with the limiting plate, the limiting plate is used for spacing the second drive rack, and the limiting plate surface has still been seted up and has been linked together the groove, the linked together the groove and be used for the removal of movable block.
As an alternative scheme of the testing device and the testing method for the temperature difference resistance of the metal bipolar plate, the invention comprises the following steps: the testing box is characterized in that the front end surface of the testing box is movably provided with a box door through a hinge, a first cavity is further formed in the testing box, a plurality of bearing strips are symmetrically arranged on the inner walls of two sides of the first cavity, and corresponding two bearing strips are respectively lapped with a bearing plate, and the bearing plates are used for bearing metal bipolar plates.
The invention provides a technical scheme that: a testing method of a testing device for temperature difference resistance of a metal bipolar plate comprises the following steps:
s1, before testing the temperature difference resistance performance of a metal bipolar plate, an operator firstly needs to place the metal bipolar plate to be tested on a supporting plate arranged in a testing box in sequence, and after a box door is closed, a hot air conveying cylinder is started at the moment, and because one ends of the hot air conveying cylinder and a cold air conveying cylinder are movably arranged in a movable sliding chute, an air outlet through hole is formed in the movable sliding chute, an external hot air source is conveyed into a driving worm wheel through the hot air conveying cylinder and is conveyed into a conveying pipe through an air storage tank arranged at the other side of the driving worm wheel, and because the other end of the conveying pipe is communicated with an air supply port which is communicated with a first cavity, the external hot air source can be conveyed into the testing box in the mode, and heat treatment of the metal bipolar plate is completed;
s2, after the metal bipolar plate is subjected to heat treatment for a period of time, starting a driving motor, rotating a driving worm fixedly connected with the driving motor and driving a driving worm wheel to rotate, wherein an air outlet through hole is fixedly formed in a movable chute, so that the air outlet through hole is separated from a hot air conveying cylinder along with the rotation of the driving worm wheel, gradually contacts with a cold air conveying cylinder along with the continuous rotation, and is communicated with the cold air conveying cylinder, at the moment, the cold air conveying cylinder is started, an external cold air source can be conveyed into a test box in such a way, and the cold treatment of the metal bipolar plate is completed;
s3, when the driving worm wheel rotates, the air storage tank is fixedly connected to one side surface of the driving worm wheel, and a plurality of connecting tooth openings are formed in the outer edge of the air storage tank, so that when the driving worm wheel rotates, the air storage tank also rotates in a stepping manner, when the air storage tank rotates, the connecting tooth openings are clamped with a second driving rack in the hot air storage tank, when the air outlet through hole is communicated with the cold air conveying cylinder, the connecting tooth openings are correspondingly meshed with the second driving rack, and hot air in the test box can be collected into the hot air storage tank in the mode;
s4, when the driving worm rotates, the driving screw rod is fixedly connected with the driving worm through the connecting rod, so that the driving screw rod can synchronously rotate with the driving worm, the surface of the driving screw rod is movably sleeved with the moving block, the surface of the moving block is provided with the first driving rack, the first driving rack moves towards the direction of the transmission rod along with the rotation of the driving screw rod, and the first driving rack is meshed with the driving gear, in this way, the wind storage rod arranged on the transmission rod can effectively realize synchronous angle adjustment along with the rotation of the driving screw rod, and when the wind outlet through hole is communicated with the cold wind conveying cylinder, the connecting spray head arranged on the wind storage rod is in a downward spraying state;
s5, when the metal bipolar plate is subjected to cold treatment for a period of time, the driving motor is started again, hot air switching, cold air collection and upward adjustment of a connecting spray head can be completed in the mode, and after the metal bipolar plate is circulated for a plurality of times, corresponding performance detection can be performed on the metal bipolar plate through a detection instrument.
The invention has the following beneficial effects:
1. according to the testing device and the testing method for the temperature difference resistance performance of the metal bipolar plate, as the two groups of hot air storage tanks and cold air storage tanks are respectively arranged on the rear end surface of the air supply box, and the piston blocks and the second driving racks are arranged in the hot air storage tanks and the cold air storage tanks, when the cold air or the hot air is switched along with the rotation of the driving worm wheel, the hot air or the cold air in the first cavity is effectively sucked and collected through the alternate engagement of the connecting tooth openings and the two second driving racks, hot air or cold air in the first cavity can be quickly converted in this way, and after one circulation, the collected hot air or cold air can be discharged into the first cavity, so that the air transmission efficiency is improved to a certain extent.
2. According to the testing device and the testing method for the temperature difference resistance performance of the metal bipolar plate, one end of the driving worm is fixedly connected with the driving screw rod through the connecting rod, so that the driving screw rod can rotate in the same step along with the rotation of the driving worm, meanwhile, the moving block is sleeved on the surface of the driving screw rod, the first driving rack is fixedly arranged on the moving block and meshed with the driving gear, the driving gear is fixedly sleeved on the surface of the transmission rod movably arranged in the air supply outlet, the air storage rod fixedly connected with the transmission rod can be effectively prevented from synchronously adjusting the angle along with the rotation of the driving screw rod in the mode, and the heated air is expanded and ascended according to the hydrodynamic analysis, so that the chilled air is sunk, and cold air or hot air can flow in an accelerating mode when the connecting nozzle is downwards or upwards for adjusting the angle, so that the efficiency of cold treatment or heat treatment is improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
FIG. 2 is a schematic diagram of the internal structure of the test box according to the present invention.
Fig. 3 is an enlarged schematic view of the structure of the present invention at a.
FIG. 4 is a schematic rear view of the blow box of the present invention.
FIG. 5 is a schematic view showing the longitudinal section of a partial blow box according to the present invention.
FIG. 6 is a schematic view of a partial drive worm gear section according to the present invention.
Fig. 7 is a schematic diagram of a meshing structure of a partial air reservoir and a second driving rack.
Fig. 8 is a schematic structural diagram of a hot air storage tank according to the present invention.
FIG. 9 is a schematic view of a sectional structure of a local hot air storage tank according to the present invention.
FIG. 10 is a schematic view of the transverse structure of a partial blow box according to the present invention.
Fig. 11 is an enlarged schematic view of the structure of the present invention at B.
Fig. 12 is a schematic view of a meshing structure of a partial first driving rack and a driving gear according to the present invention.
Fig. 13 is a schematic view of the structure of the conveying pipe according to the present invention.
In the figure: 1. a test box; 2. a blow box;
101. a door; 102. a first cavity; 103. a bearing plate; 104. a support bar;
201. a hot air delivery cartridge; 202. a cold air delivery cylinder; 203. a hot air storage tank; 204. a cold air storage tank; 205. a driving motor; 206. a second cavity; 207. a third cavity; 208. a delivery tube; 209. a drive worm wheel; 210. a wind storage tank; 211. driving a worm; 212. a second drive rack; 213. driving a screw rod; 214. a first drive rack; 215. a moving block; 216. a drive gear; 217. an air supply port; 218. a wind storage rod; 219. a transmission rod; 220. a U-shaped joint; 221. the nozzle is connected; 222. a limiting plate; 224. connecting the through groove; 225. connecting the tooth openings; 226. a connecting rod; 227. an air outlet through hole; 228. moving the chute; 229. a fixed rod; 230. an air pipe; 231. a first gas check valve; 232. a second gas check valve; 233. a piston block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, 2, 3, 4, 5 and 13, a testing device and a testing method for temperature difference resistance of a metal bipolar plate include a testing box 1 and an air supply box 2, wherein the air supply box 2 is arranged at the rear end of the testing box 1, the air supply box 2 and the testing box 1 form a fixed connection, and the air supply box 2 is communicated with the testing box 1;
two sides of the air supply box 2 are respectively provided with two groups of hot air conveying cylinders 201 and cold air conveying cylinders 202, and the two groups of hot air conveying cylinders 201 and the two groups of cold air conveying cylinders 202 are respectively used for conveying hot air and cold air into the test box 1;
the rear end of the air box 2 is further provided with two groups of hot air storage tanks 203 and cold air storage tanks 204, and the two groups of hot air storage tanks 203 and cold air storage tanks 204 are respectively used for storing hot air and cold air in the test box 1.
The front end surface of the test box 1 is movably provided with a box door 101 through a hinge, a first cavity 102 is further formed in the test box 1, a plurality of bearing strips 104 are symmetrically arranged on the inner walls of two sides of the first cavity 102, and corresponding two bearing strips 104 are respectively lapped with a bearing plate 103, and the bearing plates 103 are used for bearing metal bipolar plates.
One end of each group of hot air conveying cylinder 201 and cold air conveying cylinder 202 is respectively communicated with an external hot air source and an external cold air source, and the other end of each group of hot air conveying cylinder 201 and cold air conveying cylinder 202 is respectively arranged on one side of a driving worm gear 209 in a sliding manner;
the driving worm gear 209 is close to one side surface of the hot air conveying cylinder 201 and the cold air conveying cylinder 202 and is provided with a movable chute 228, the cross section of the movable chute 228 is of an annular structure, one end of each group of hot air conveying cylinder 201 and one end of each group of cold air conveying cylinder 202 respectively slide in the movable chute 228, and an air outlet through hole 227 is formed in the movable chute 228.
The side of the third cavity 207 far away from the hot air conveying cylinder 201 is further provided with a second cavity 206, a conveying pipe 208 is arranged in the second cavity 206, one end of the conveying pipe 208 is communicated with the air storage tank 210, the other end of the conveying pipe 208 is communicated with the air supply outlet 217, and meanwhile, the surface of the conveying pipe 208 is provided with a plurality of fixing rods 229, and the fixing rods 229 are used for fixing the conveying pipe 208 in the second cavity 206.
In this embodiment: before testing the temperature difference resistance of the metal bipolar plate, an operator firstly needs to place the metal bipolar plate to be tested on the bearing plates 103 arranged in the testing box 1 in sequence, and after the box door 101 is closed, the hot air conveying cylinder 201 is started at the moment, and the fact that each bearing plate 103 is movably lapped on the bearing strip 104 is needed to be described, so that the metal bipolar plate can move through the bearing plates 103 after being subjected to cyclic heat treatment and cold treatment, and the safety of the operator is guaranteed to a certain extent;
because one end of the hot air conveying cylinder 201 and one end of the cold air conveying cylinder 202 are movably arranged in the movable chute 228, and an air outlet through hole 227 is formed in the movable chute 228, the movable chute 228 is arranged so that the hot air conveying cylinder 201 or the cold air conveying cylinder 202 can be slidably arranged in the movable chute 228 when the driving worm gear 209 rotates, so that the situation of blocking is avoided;
when the external hot air source is conveyed into the driving worm gear 209 through the hot air conveying cylinder 201, the air storage tank 210 arranged at the other side of the driving worm gear 209 is communicated with the driving worm gear 209, and a fixed connection is formed between the air storage tank 210 and the driving worm gear 209, so that the external hot air source can be conveyed into the conveying pipe 208 through the air storage tank 210, and the other end of the conveying pipe 208 is communicated with the air supply outlet 217, and the air supply outlet 217 is communicated with the first cavity 102, so that the external hot air source can be conveyed into the test box 1 in such a way, and the heat treatment of the metal bipolar plate is completed;
it should be noted that, the communicating positions between the conveying pipe 208 and the third cavity 207 and the air supply outlet 217 are all provided with sealing treatment, so that the tightness during conveying the air can be effectively ensured, and the communicating positions between the conveying pipe 208 and the air supply outlet 217 are also provided with one-way valves, so that the air discharged from the conveying pipe 208 into the first cavity 102 is not returned to the conveying pipe 208.
Example 2
This embodiment is an improvement made on the basis of embodiment 1, according to fig. 5-9, a side surface of the driving worm gear 209 far away from the hot air conveying cylinder 201 forms a fixed connection with a side surface of the air storage tank 210, the driving worm gear 209 is communicated with the air storage tank 210, an air outlet through hole 227 is also formed on the other side surface of the air storage tank 210, a connecting tooth opening 225 is also formed at the outer edge of the air storage tank 210, and meanwhile, second driving racks 212 are respectively arranged above and below the air storage tank 210, and the two second driving racks 212 are respectively movably arranged inside the hot air storage tank 203 and the cold air storage tank 204.
The surface of the hot air storage tank 203 far away from the second driving rack 212 is also respectively provided with a first gas check valve 231 and a second gas check valve 232, meanwhile, the inside of the hot air storage tank 203 is also movably provided with a piston block 233, one side surface of the piston block 233 is also fixedly connected with the second driving rack 212, the first gas check valve 231 and the second gas check valve 232 are both connected with an air pipe 230, and the air inlet directions of the first gas check valve 231 and the second gas check valve 232 are opposite.
In this embodiment: when the metal bipolar plate is subjected to heat treatment for a period of time, the driving motor 205 is started, the driving worm 211 fixedly connected with the driving motor 205 rotates and drives the driving worm wheel 209 to rotate, the air outlet through hole 227 is fixedly formed in the moving chute 228, so that the air outlet through hole 227 gradually breaks away from the hot air conveying cylinder 201 along with the rotation of the driving worm wheel 209, the air outlet through hole 227 gradually contacts with the cold air conveying cylinder 202 along with the continuous rotation of the driving worm wheel 209 and finally is communicated with the cold air conveying cylinder 202, the cold air conveying cylinder 202 is started, and an external cold air source can be conveyed into the test box 1 in such a way, and the cold treatment of the metal bipolar plate is completed;
on the one hand, when the driving worm wheel 209 rotates, since the wind storage tank 210 is fixedly connected to one side surface of the driving worm wheel 209, and the outer edge of the wind storage tank 210 is provided with the plurality of connecting tooth openings 225, the wind storage tank 210 also rotates with the step along with the rotation of the driving worm wheel 209, when the wind storage tank 210 rotates, the connecting tooth openings 225 form clamping with the second driving rack 212 inside the hot air storage tank 203, when the air outlet through hole 227 is communicated with the cold air conveying cylinder 202, the second driving rack 212 arranged inside the hot air storage tank 203 extends to a certain extent, and because one end of the second driving rack 212 is fixedly connected with the piston block 233, the piston block 233 moves to a certain extent under the action of the second driving rack 212, and when the piston block 233 moves, the inside of the hot air storage tank 203 generates a certain negative pressure, and hot air inside the test box 1 can be collected into the hot air storage tank 203 through the negative pressure;
it should be noted that, since the surface of the hot air storage tank 203 far away from the second driving rack 212 is further provided with the first gas check valve 231 and the second gas check valve 232 respectively, and meanwhile, the hot air storage tank 203 is further movably provided with the piston block 233, a fixed connection is formed between one side surface of the piston block 233 and the second driving rack 212, the first gas check valve 231 and the second gas check valve 232 are both connected with the air pipe 230, and the air inlet directions of the first gas check valve 231 and the second gas check valve 232 are opposite, so that after the hot air in the test box 1 is collected in the hot air storage tank 203, the hot air can enter the left end of the piston block 233 from the second gas check valve 232, and when the hot air is discharged subsequently, the hot air can be discharged from the first gas check valve 231 to the hot air storage tank 203, in this way, the air tightness of the inside of the hot air storage tank 203 can be effectively ensured, so that the problem that the hot air in the hot air storage tank 203 accidentally flows back due to the hot air is prevented to a certain extent.
Example 3
The present embodiment is an improvement based on embodiment 2, and according to fig. 10-12, a driving worm 211 is further disposed above the driving worm gear 209, the driving worm gear 209 and the driving worm 211 are meshed with each other, one end of the driving worm 211 forms a fixed connection with the output end of the driving motor 205, the other end of the driving worm 211 forms a fixed connection with one end of the connecting rod 226, one end of the connecting rod 226 forms a fixed connection with one end of the driving screw 213, and the other end of the driving screw 213 is movably disposed on the inner wall of the third cavity 207;
the surface of the driving screw rod 213 is movably sleeved with a moving block 215, one side surface of the moving block 215 is fixedly provided with a first driving rack 214, one end of the third cavity 207, which is close to the first cavity 102, is also provided with an air supply opening 217, the air supply opening 217 is movably provided with a transmission rod 219 inside the air supply opening 217, one end of the transmission rod 219 is fixedly sleeved with a driving gear 216, the driving gear 216 is meshed with the first driving rack 214, and in addition, the air supply opening 217 is also communicated with the other end of the air pipe 230.
The surface of the transmission rod 219 is also fixedly provided with a U-shaped connector 220, one end of the U-shaped connector 220 is fixedly connected with a wind storage rod 218, the wind storage rod 218 is also arranged inside the air supply outlet 217, a plurality of connecting spray heads 221 are arranged on the surface of one side, far away from the transmission rod 219, of the air supply outlet 217, and meanwhile, each connecting spray head 221 is communicated with the wind storage rod 218.
The end of the third cavity 207, which is close to the air supply outlet 217, is further provided with a limiting plate 222, the limiting plate 222 is used for limiting the second driving rack 212, the surface of the limiting plate 222 is further provided with a connecting slot 224, and the connecting slot 224 is used for moving the moving block 215.
In this embodiment: on the other hand, when the driving worm 211 rotates, since the driving screw 213 is fixedly connected with the driving worm 211 through the connecting rod 226, the driving screw 213 is also synchronously rotated with the driving worm 211, the surface of the driving screw 213 is movably sleeved with the moving block 215, and the surface of the moving block 215 is provided with the first driving rack 214, so that the first driving rack 214 moves towards the direction of the driving rod 219 along with the rotation of the driving screw 213, the driving rod 219 is movably arranged in the air supply opening 217, one end of the driving rod 219 is fixedly sleeved with the driving gear 216, the first driving rack 214 is gradually meshed with the driving gear 216 along with the gradual movement of the first driving rack 214, and the driving gear 216 is driven to rotate, the driving rod 219 is synchronously rotated, the air storage rod 218 is synchronously rotated along with the rotation of the air storage rod 218 through the fixed connection formed between the U-shaped joint 220, a plurality of connecting spray heads 221 arranged on the air storage rod 218 are synchronously rotated along with the rotation of the air storage rod 218, and the spray nozzles 202 are synchronously adjusted to be connected with the air supply drum 227 at the moment, and the spray nozzles 221 are connected with the air supply drum 218 at the time when the spray nozzles 221 are connected with the air supply drum 218;
in the above manner, the wind storage rod 218 arranged on the transmission rod 219 can effectively perform synchronous angle adjustment along with the rotation of the driving screw rod 213, it should be noted that according to the hydrodynamic analysis, heated air expands and rises, and cooled air sinks, so that when the connection nozzle 221 performs angle adjustment downwards, cold air can flow in an accelerated manner, thereby improving the efficiency of cold treatment;
in addition, the limiting plate 222 is provided for limiting the second driving rack 212, and the connecting groove 224 is provided for moving the moving block 215, so that the blocking is prevented.
In order to further better explain the above examples, the present invention also provides an embodiment, a testing device and a testing method for temperature difference resistance of a metal bipolar plate, comprising the following steps:
firstly, before testing the temperature difference resistance performance of the metal bipolar plate, an operator firstly needs to place the metal bipolar plate to be tested on a supporting plate 103 arranged in the testing box 1 in sequence, and after the box door 101 is closed, a hot air conveying cylinder 201 is started at the moment, and because one ends of the hot air conveying cylinder 201 and a cold air conveying cylinder 202 are movably arranged in a moving chute 228, and an air outlet through hole 227 is formed in the moving chute 228, an external hot air source is conveyed into a driving worm gear 209 through the hot air conveying cylinder 201 and is conveyed into a conveying pipe 208 by an air storage tank 210 arranged on the other side of the driving worm gear 209, and because the other end of the conveying pipe 208 is communicated with an air supply outlet 217 and the air supply outlet 217 is communicated with a first cavity 102, the external hot air source can be conveyed into the testing box 1 in the mode, and heat treatment of the metal bipolar plate is completed;
step two, after the metal bipolar plate is subjected to heat treatment for a period of time, the driving motor 205 is started at the moment, the driving worm 211 fixedly connected with the driving motor 205 rotates and drives the driving worm wheel 209 to rotate, as the air outlet through hole 227 is fixedly formed in the moving chute 228, the air outlet through hole 227 is separated from the hot air conveying cylinder 201 along with the rotation of the driving worm wheel 209, and along with the continuous rotation, the air outlet through hole 227 gradually contacts with the cold air conveying cylinder 202 and is finally communicated with the cold air conveying cylinder 202, the cold air conveying cylinder 202 is started, and an external cold air source can be conveyed into the test box 1 in such a way, and the cold treatment of the metal bipolar plate is completed;
step three, when the driving worm gear 209 rotates, as the wind storage tank 210 is fixedly connected to one side surface of the driving worm gear 209, and the outer edge of the wind storage tank 210 is provided with a plurality of connection tooth openings 225, when the driving worm gear 209 rotates, the wind storage tank 210 also rotates with the step, when the wind storage tank 210 rotates, the connection tooth openings 225 form clamping with the second driving rack 212 in the hot air storage tank 203, when the air outlet through hole 227 is communicated with the cold air conveying cylinder 202, the connection tooth openings 225 are correspondingly meshed with the second driving rack 212, and in this way, hot air in the test box 1 can be collected into the hot air storage tank 203;
step four, when the driving worm 211 rotates, since the driving screw 213 is fixedly connected with the driving worm 211 through the connecting rod 226, the driving screw 213 also rotates synchronously with the driving worm 211, the surface of the driving screw 213 is movably sleeved with the moving block 215, and the surface of the moving block 215 is provided with the first driving rack 214, so that the first driving rack 214 moves towards the direction of the driving rod 219 and is meshed with the driving gear 216 along with the rotation of the driving screw 213, in this way, the wind storage rod 218 arranged on the driving rod 219 can effectively perform synchronous angle adjustment along with the rotation of the driving screw 213, and when the wind outlet through hole 227 is communicated with the cold wind conveying cylinder 202, the connecting spray nozzle 221 arranged on the wind storage rod 218 is in a downward spraying state;
step five, when the metal bipolar plate is subjected to cold treatment for a period of time, the driving motor 205 is started again at this time, so that the hot air switching, the cold air collecting and the upward adjustment of the connecting spray nozzle 221 can be completed, and after the metal bipolar plate is circulated for a plurality of times, the corresponding performance detection can be performed on the metal bipolar plate through the detecting instrument.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (10)
1. The utility model provides a testing arrangement of metal bipolar plate temperature difference resistance performance, includes test box (1) and air supply case (2), its characterized in that: the air supply box (2) is arranged at the rear end of the test box (1), the air supply box (2) is fixedly connected with the test box (1), and the air supply box (2) is communicated with the test box (1);
two groups of hot air conveying cylinders (201) and cold air conveying cylinders (202) are respectively arranged on two sides of the air supply box (2), and the two groups of hot air conveying cylinders (201) and the two groups of cold air conveying cylinders (202) are respectively used for conveying hot air and cold air into the test box (1);
the rear end of the air supply box (2) is also provided with two groups of hot air storage tanks (203) and cold air storage tanks (204), and the two groups of hot air storage tanks (203) and cold air storage tanks (204) are respectively used for storing hot air and cold air in the test box (1).
2. The test device for temperature difference resistance of a metal bipolar plate according to claim 1, wherein: one end of each group of the hot air conveying cylinder (201) and one end of the cold air conveying cylinder (202) are respectively communicated with an external hot air source and an external cold air source, and the other end of each group of the hot air conveying cylinder (201) and the other end of the cold air conveying cylinder (202) are respectively arranged on one side of a driving worm wheel (209) in a sliding manner;
the driving worm wheel (209) is close to one side surface of the hot air conveying cylinder (201) and one side surface of the cold air conveying cylinder (202) and is provided with a movable chute (228), the cross section of the movable chute (228) is of an annular structure, one end of each group of hot air conveying cylinder (201) and one end of each group of cold air conveying cylinder (202) respectively slide inside the movable chute (228), and an air outlet through hole (227) is further formed inside the movable chute (228).
3. The test device for temperature difference resistance of a metal bipolar plate according to claim 2, wherein: one side surface that hot-blast transport section of thick bamboo (201) was kept away from to drive worm wheel (209) forms fixed connection with one side surface of wind storage tank (210), just be linked together between drive worm wheel (209) and wind storage tank (210), and wind outlet through-hole (227) have also been seted up on the opposite side surface of wind storage tank (210), and connection tooth mouth (225) have still been seted up in the outer department of wind storage tank (210), simultaneously the top and the below of wind storage tank (210) all are provided with second drive rack (212), two second drive rack (212) activity respectively set up in hot-blast holding tank (203) and cold wind holding tank (204) inside.
4. A device for testing the temperature difference resistance of a metal bipolar plate according to claim 3, wherein: the surface that second drive rack (212) was kept away from to hot-blast holding vessel (203) still is provided with first gaseous check valve (231) and second gaseous check valve (232) respectively, simultaneously the inside activity of hot-blast holding vessel (203) is provided with piston piece (233) still, form fixed connection between one side surface of piston piece (233) and second drive rack (212), first gaseous check valve (231) and second gaseous check valve (232) all are connected with trachea (230), first gaseous check valve (231) and second gaseous check valve (232) intake opposite direction.
5. The test device for temperature difference resistance of a metal bipolar plate according to claim 2, wherein: a driving worm (211) is further arranged above the driving worm wheel (209), the driving worm wheel (209) and the driving worm (211) are meshed with each other, one end of the driving worm (211) is fixedly connected with the output end of the driving motor (205), the other end of the driving worm (211) is fixedly connected with one end of the connecting rod (226), one end of the connecting rod (226) is fixedly connected with one end of the driving screw rod (213), and the other end of the driving screw rod (213) is movably arranged on the inner wall of the third cavity (207);
the movable driving screw rod (213) is movably sleeved with a movable block (215), one side surface of the movable block (215) is fixedly provided with a first driving rack (214), one end, close to the first cavity (102), of the third cavity (207) is further provided with an air supply opening (217), the air supply opening (217) is in movable connection with the first cavity (102), a transmission rod (219) is movably arranged in the air supply opening (217), one end of the transmission rod (219) is fixedly sleeved with a driving gear (216), the driving gear (216) is meshed with the first driving rack (214) in a meshed mode, and in addition, the air supply opening (217) is further communicated with the other end of the air pipe (230).
6. The testing device for temperature difference resistance of a metal bipolar plate according to claim 5, wherein: the novel air conditioner is characterized in that a U-shaped connector (220) is fixedly arranged on the surface of the transmission rod (219), one end of the U-shaped connector (220) is fixedly connected with an air storage rod (218), the air storage rod (218) is also arranged inside the air supply outlet (217), a plurality of connecting spray heads (221) are arranged on the surface of one side, far away from the transmission rod (219), of the air supply outlet (217), and meanwhile each connecting spray head (221) is communicated with the air storage rod (218).
7. The testing device for temperature difference resistance of a metal bipolar plate according to claim 5, wherein: one side of a third cavity (207) far away from the hot air conveying cylinder (201) is further provided with a second cavity (206), a conveying pipe (208) is arranged inside the second cavity (206), one end of the conveying pipe (208) is communicated with the air storage tank (210), the other end of the conveying pipe (208) is communicated with the air supply outlet (217), a plurality of fixing rods (229) are arranged on the surface of the conveying pipe (208), and the fixing rods (229) are used for fixing the conveying pipe (208) inside the second cavity (206).
8. The testing device for temperature difference resistance of a metal bipolar plate according to claim 7, wherein: one end of the third cavity (207) close to the air supply outlet (217) is further provided with a limiting plate (222), the limiting plate (222) is used for limiting the second driving rack (212), the surface of the limiting plate (222) is further provided with a connecting groove (224), and the connecting groove (224) is used for moving the moving block (215).
9. The test device for temperature difference resistance of a metal bipolar plate according to claim 1, wherein: the testing box is characterized in that a box door (101) is movably mounted on the front end surface of the testing box (1) through a hinge, a first cavity (102) is further formed in the testing box (1), a plurality of bearing strips (104) are symmetrically arranged on the inner walls of two sides of the first cavity (102), bearing plates (103) are respectively lapped on the corresponding two bearing strips (104), and the bearing plates (103) are used for bearing metal bipolar plates.
10. A method for testing the temperature difference resistance of a metal bipolar plate, which adopts the testing device for the temperature difference resistance of the metal bipolar plate according to any one of the claims 1-9, and is characterized by comprising the following steps:
s1, before testing the temperature difference resistance performance of a metal bipolar plate, an operator firstly needs to place the metal bipolar plate to be tested on a supporting plate (103) arranged in a test box (1) in sequence, and after a box door (101) is closed, a hot air conveying cylinder (201) is started at the moment, as one end of the hot air conveying cylinder (201) and one end of a cold air conveying cylinder (202) are movably arranged in a movable sliding groove (228), an air outlet through hole (227) is formed in the movable sliding groove (228), an external hot air source can be conveyed into a driving worm wheel (209) through the hot air conveying cylinder (201) and conveyed into a conveying pipe (208) through an air storage tank (210) arranged on the other side of the driving worm wheel (209), and the other end of the conveying pipe (208) is communicated with an air supply outlet (217) which is communicated with a first cavity (102), so that the external hot air source can be conveyed into the test box (1) in the mode, and heat treatment of the metal bipolar plate is completed;
s2, after the metal bipolar plate is subjected to heat treatment for a period of time, a driving motor (205) is started at the moment, a driving worm (211) fixedly connected with the driving motor (205) rotates and drives a driving worm wheel (209) to rotate, an air outlet through hole (227) is fixedly formed in a moving chute (228), so that the air outlet through hole (227) is separated from a hot air conveying cylinder (201) along with the rotation of the driving worm wheel (209), the air outlet through hole (227) gradually contacts with a cold air conveying cylinder (202) along with the continuous rotation, and finally is communicated with the cold air conveying cylinder (202), at the moment, the cold air conveying cylinder (202) is started, an external cold air source can be conveyed into a test box (1) in such a way, and the cold treatment of the metal bipolar plate is completed;
s3, when the driving worm wheel (209) rotates, as the wind storage tank (210) is fixedly connected to one side surface of the driving worm wheel (209), and a plurality of connecting tooth openings (225) are formed in the outer edge of the wind storage tank (210), when the driving worm wheel (209) rotates, the wind storage tank (210) also rotates along with the step, when the wind storage tank (210) rotates, the connecting tooth openings (225) are clamped with the second driving racks (212) in the hot air storage tank (203), and when the air outlet through hole (227) is communicated with the cold air conveying cylinder (202), the connecting tooth openings (225) are correspondingly meshed with the second driving racks (212), and hot air in the test box (1) can be collected into the hot air storage tank (203) in the mode;
s4, when the driving worm (211) rotates, as the driving screw (213) is fixedly connected with the driving worm (211) through the connecting rod (226), the driving screw (213) can synchronously rotate with the driving worm (211), the surface of the driving screw (213) is movably sleeved with the moving block (215), the surface of the moving block (215) is provided with the first driving rack (214), the first driving rack (214) moves towards the direction of the transmission rod (219) and is meshed with the driving gear (216), in this way, the wind storage rod (218) arranged on the transmission rod (219) can effectively perform synchronous angle adjustment along with the rotation of the driving screw (213), and when the wind outlet through hole (227) is communicated with the cold wind conveying cylinder (202), the connecting spray head (221) arranged on the wind storage rod (218) is in a downward spraying state;
s5, after the metal bipolar plate is subjected to cold treatment for a period of time, the driving motor (205) is started again, hot air switching, cold air collection and upward adjustment of the connecting spray heads (221) can be completed in this way, and after the metal bipolar plate is circulated for a plurality of times, corresponding performance detection can be performed on the metal bipolar plate through the detecting instrument.
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| CN202311165115.1A CN117191855A (en) | 2023-09-11 | 2023-09-11 | Testing device and testing method for temperature difference resistance of metal bipolar plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118010786A (en) * | 2024-04-09 | 2024-05-10 | 深圳市正天伟科技有限公司 | Circuit board blind hole filling electroplating detection equipment and detection method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118010786A (en) * | 2024-04-09 | 2024-05-10 | 深圳市正天伟科技有限公司 | Circuit board blind hole filling electroplating detection equipment and detection method |
| CN118010786B (en) * | 2024-04-09 | 2024-06-21 | 深圳市正天伟科技有限公司 | Circuit board blind hole filling electroplating detection equipment and detection method |
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