Airtightness detection equipment for runner plate of thermal management system

Abstract

The utility model discloses air tightness detection equipment for a runner plate of a thermal management system, which comprises a bottom plate, a placement table is fixed at the top of the bottom plate, and the runner plate is placed on the placement table and comprises a body, a middle body and a lower body; a plug device is installed at the top of the bottom plate and comprises a first detection mechanism, a second detection mechanism and a third detection mechanism, and the first detection mechanism, the second detection mechanism and the third detection mechanism are all connected with an air source and a leak detector through air pipes. And the pressing device is used for pressing the runner plate on the placing table. According to the utility model, external leakage and internal leakage detection can be carried out, the automation degree is high, and the problem that the traditional detection method can only detect external leakage but cannot find internal unsoldering, insufficient soldering and other defects is effectively solved.

Description

Technical Field

[0001] This utility model relates to an airtightness testing device for a flow channel plate in a thermal management system. Background Technology

[0002] As a key component of the thermal management module in new energy vehicles, the flow channel plate of the thermal management system is typically composed of three layers—upper, middle, and lower—fixed together by welding. After welding, its airtightness must be rigorously tested. Currently, the commonly used airtightness testing methods in the industry primarily target external leaks, i.e., detecting leaks on the outermost welded surface. However, this method has limitations: when internal ribs exhibit defects such as detachment or incomplete welding due to unstable welding processes, external leak testing alone cannot effectively identify leaks in internal interconnected areas (the welded surfaces at the pump and valve inlets are internal leak points). Therefore, to ensure the overall sealing reliability of the flow channel plate under complex operating conditions, internal leak testing of the internal flow channels must be implemented after completing external leak testing. Utility Model Content

[0003] In view of the above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a thermal management system flow channel plate air tightness testing device.

[0004] The technical solution of this utility model is: a thermal management system flow channel plate air tightness testing device, which includes a base plate, a placement platform fixed on the top of the base plate, a flow channel plate placed on the placement platform, the flow channel plate including an upper body, a middle body and a lower body distributed from top to bottom, an injection port provided at the top of the upper body, a first liquid outlet pipe provided at the left end of the upper body, a second liquid outlet pipe provided at the right front end of the upper body, a third liquid outlet pipe provided at the left front end of the middle body, a fourth liquid outlet pipe, a fifth liquid outlet pipe and a sixth liquid outlet pipe distributed from left to right at the front end of the lower body, and a water valve port and a water pump port provided at the bottom of the lower body;

[0005] The top of the base plate is equipped with a plugging device for opening or blocking the injection port, the first liquid outlet pipe, the second liquid outlet pipe, the third liquid outlet pipe, the fourth liquid outlet pipe, the fifth liquid outlet pipe, the sixth liquid outlet pipe, the water valve port, and the water pump port. The plugging device includes a first detection mechanism for opening or blocking the injection port, a second detection mechanism for opening or blocking the third liquid outlet pipe and the fourth liquid outlet pipe, and a third detection mechanism for opening or blocking the fifth liquid outlet pipe. The first detection mechanism, the second detection mechanism, and the third detection mechanism are all connected to an air source and a leak detector through air pipes.

[0006] It also includes a clamping device for pressing the flow channel plate onto the placement table.

[0007] Furthermore, the plug device includes a first bracket fixed to the left end of the base plate, a first cylinder extending laterally and fixed to the top of the first bracket, a first plug fixed to the piston rod end of the right end of the first cylinder, a second bracket fixed to the right front end of the base plate, a second cylinder extending front-back and fixed to the top of the second bracket, and a second plug fixed to the piston rod end of the rear end of the second cylinder. The first plug is located to the left of the first liquid outlet pipe, and the second plug is located in front of the second liquid outlet pipe.

[0008] Furthermore, the second detection mechanism includes a third bracket fixed to the left front end of the base plate, a third cylinder extending forward and backward and fixed to the top of the third bracket, and a third plug fixed to the end of the piston rod at the rear end of the third cylinder. The third plug is located in front of the third liquid outlet pipe, and an air pipe for connecting the third liquid outlet pipe is installed on the third plug.

[0009] Furthermore, the second testing mechanism also includes a fourth cylinder that extends forward and backward and is fixed to the lower end of the third bracket, and a fourth plug that is fixed to the end of the piston rod at the rear end of the fourth cylinder. The fourth plug is located in front of the fourth liquid outlet pipe, and an air pipe for connecting the fourth liquid outlet pipe is installed on the fourth plug.

[0010] Furthermore, the third testing mechanism includes a fifth cylinder that extends forward and backward and is fixed to the lower end of the second bracket, and a fifth plug that is fixed to the end of the piston rod at the rear end of the fifth cylinder. The fifth plug is located in front of the fifth liquid outlet pipe, and an air pipe for connecting the fifth liquid outlet pipe is installed on the fifth plug.

[0011] Furthermore, a sixth plug is fixed to the end of the piston rod at the rear end of the fifth cylinder. The fifth plug is located to the left of the sixth plug, and the sixth plug is located in front of the sixth liquid outlet pipe.

[0012] Furthermore, the first testing mechanism includes a support base fixed to the right end of the base plate, a sixth cylinder extending vertically and fixed to the upper end of the support base, a lifting plate fixed to the lower end of the piston rod of the sixth cylinder, and a seventh plug fixed to the bottom of the lifting plate. The seventh plug is located above the injection port and is equipped with an air pipe for connecting to the injection port.

[0013] Furthermore, the plug device includes a seventh cylinder and an eighth cylinder that are fixedly fixed to the lower end of the placement platform extending vertically. The piston rod end of the upper end of the seventh cylinder is fixed with an eighth plug located below the water valve port, and the piston rod end of the upper end of the eighth cylinder is fixed with a ninth plug located below the water pump port.

[0014] Furthermore, the third, fourth, and fifth liquid outlet pipes are all connected to the water valve port, and the sixth liquid outlet pipe is connected to the water pump port.

[0015] Furthermore, the pressing device includes a first pressure plate, a second pressure plate, a third pressure plate and a fourth pressure plate. The left rear end of the lower body has an outwardly protruding first protrusion. The left rear end of the placement platform is fixed with an obliquely arranged tenth cylinder. The piston rod end of the front end of the tenth cylinder is fixed to the first pressure plate for pressing on the top of the first protrusion.

[0016] The lower body has a second protruding protrusion at the right rear end, and an eleventh cylinder extending forward and backward is fixed at the right rear end of the placement platform. The piston rod end at the front end of the eleventh cylinder is fixed to a second pressure plate for pressing on the top of the second protrusion.

[0017] The lower body has a third protruding protrusion on the left front end. A support platform is fixed at the middle of the front end of the base plate. A twelfth cylinder extending forward and backward is fixed on the top of the support platform. The piston rod end of the rear end of the twelfth cylinder is fixed to a third pressure plate for pressing on the top of the third protrusion.

[0018] A thirteenth cylinder extending to the left and right is fixed to the front right side of the base plate. The piston rod end of the thirteenth cylinder is fixed to the fourth pressure plate used to press against the top of the sixth liquid outlet pipe.

[0019] The advantages of the airtightness testing equipment for the flow channel plate of the thermal management system provided by this utility model are: it can detect both external and internal leaks, and has a high degree of automation, effectively solving the problem that traditional testing methods can only detect external leaks and cannot detect internal defects such as desoldering and poor soldering. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is another overall structural schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram showing the usage state of the clamping device of this utility model when clamping the flow channel plate;

[0023] Figure 4 This is a schematic diagram of the clamping device of this utility model in use when the flow channel plate is not clamped;

[0024] Figure 5 This is a schematic diagram of the flow channel plate of this utility model;

[0025] Figure 6 This is another structural schematic diagram of the flow channel plate of this utility model;

[0026] Figure 7 This is a schematic diagram of the lower body of this utility model.

[0027] As shown in the diagram: 1—Base plate, 2—Placement platform, 3—Flow channel plate, 301—Upper body, 3011—Injection port, 3012—First outlet pipe, 3013—Second outlet pipe, 302—Middle body, 3021—Third outlet pipe, 303—Lower body, 3031—Fourth outlet pipe, 3032—Fifth outlet pipe, 3033—Sixth outlet pipe, 3034—Water valve port, 3035—Water pump port, 3036—First protrusion, 3037—Second protrusion, 3038—Third protrusion, 4—First bracket, 5—First cylinder, 6—First plug, 7—Second bracket, 8—Second cylinder, 9—[unclear text - possibly a typo, should be "1"], 1 ... 10—Third support, 11—Third cylinder, 12—Third plug, 13—Fourth cylinder, 14—Fourth plug, 15—Fifth cylinder, 16—Fifth plug, 17—Sixth plug, 18—Support seat, 19—Sixth cylinder, 20—Lifting plate, 21—Seventh plug, 22—Seventh cylinder, 23—Eighth cylinder, 24—Eighth plug, 25—Ninth plug, 26—First pressure plate, 27—Second pressure plate, 28—Third pressure plate, 29—Fourth pressure plate, 30—Tenth cylinder, 31—Eleventh cylinder, 32—Support platform, 33—Twelfth cylinder, 34—Thirteenth cylinder. Detailed Implementation

[0028] To provide a more intuitive and complete understanding of the technical solution of this utility model, the following non-limiting features are described in conjunction with the accompanying drawings:

[0029] like Figure 1 — Figure 7As shown, a thermal management system flow channel plate airtightness testing device includes a base plate 1, a placement platform 2 fixed on the top of the base plate 1, and a flow channel plate 3 placed on the placement platform 2. The flow channel plate 3 includes an upper body 301, a middle body 302, and a lower body 303 distributed from top to bottom. The top of the upper body 301 is provided with a liquid injection port 3011, the left end of the upper body 301 is provided with a first liquid outlet pipe 3012, the right front end of the upper body 301 is provided with a second liquid outlet pipe 3013, the left front end of the middle body 302 is provided with a third liquid outlet pipe 3021, the front end of the lower body 303 is provided with a fourth liquid outlet pipe 3031, a fifth liquid outlet pipe 3032, and a sixth liquid outlet pipe 3033 distributed from left to right, and the bottom of the lower body 303 is provided with a water valve port 3034 and a water pump port 3035. The top of the base plate 1 The device is equipped with a plugging device for opening or blocking the injection port 3011, the first outlet pipe 3012, the second outlet pipe 3013, the third outlet pipe 3021, the fourth outlet pipe 3031, the fifth outlet pipe 3032, the sixth outlet pipe 3033, the water valve port 3034, and the water pump port 3035. The plugging device includes a first detection mechanism for opening or blocking the injection port 3011, a second detection mechanism for opening or blocking the third outlet pipe 3021 and the fourth outlet pipe 3031, and a third detection mechanism for opening or blocking the fifth outlet pipe 3032. The first detection mechanism, the second detection mechanism, and the third detection mechanism are all connected to an air source (not shown in the figure) and a leak detector (not shown in the figure) through an air pipe (not shown in the figure).

[0030] like Figure 1 As shown, the plugging device includes a first bracket 4 fixed to the left end of the base plate 1, a first cylinder 5 extending laterally and fixed to the top of the first bracket 4, a first plug 6 fixed to the piston rod end of the right end of the first cylinder 5, a second bracket 7 fixed to the right front end of the base plate 1, a second cylinder 8 extending rearward and fixed to the top of the second bracket 7, and a second plug 9 fixed to the piston rod end of the rear end of the second cylinder 8. The first plug 6 is located to the left of the first outlet pipe 3012, and the second plug 9 is located in front of the second outlet pipe 3013. The first cylinder 5 controls the first plug 6 to move to the right to block the first outlet pipe 3012, and the second cylinder 8 controls the second plug 9 to move backward to block the second outlet pipe 3013.

[0031] like Figure 1As shown, the second detection mechanism includes a third bracket 10 fixed to the left front end of the base plate 1, a third cylinder 11 extending backward and fixed to the top of the third bracket 10, and a third plug 12 fixed to the end of the piston rod at the rear end of the third cylinder 11. The third plug 12 is located in front of the third liquid outlet pipe 3021, and an air pipe for connecting to the third liquid outlet pipe 3021 is installed on the third plug 12. The second detection mechanism also includes a fourth cylinder 13 extending backward and fixed to the lower end of the third bracket 10, and a fourth plug 14 fixed to the end of the piston rod at the rear end of the fourth cylinder 13. The fourth plug 14 is located in front of the fourth liquid outlet pipe 3031, and an air pipe for connecting to the fourth liquid outlet pipe 3031 is installed on the fourth plug 14. The third cylinder 11 controls the third plug 12 to move backward to block the third liquid outlet pipe 3021, and the fourth cylinder 13 controls the fourth plug 14 to move backward to block the fourth liquid outlet pipe 3031.

[0032] like Figure 1 As shown, the third detection mechanism includes a fifth cylinder 15 extending forward and backward and fixed to the lower end of the second bracket 7, and a fifth plug 16 fixed to the end of the piston rod at the rear end of the fifth cylinder 15. The fifth plug 16 is located in front of the fifth liquid outlet pipe 3032, and an air pipe for connecting to the fifth liquid outlet pipe 3032 is installed on the fifth plug 16. The fifth cylinder 15 controls the fifth plug 16 to move backward, thus blocking the fifth liquid outlet pipe 3032.

[0033] like Figure 1 As shown, a sixth plug 17 is also fixed to the end of the piston rod at the rear end of the fifth cylinder 15. The fifth plug 16 is located to the left of the sixth plug 17, and the sixth plug 17 is located in front of the sixth liquid outlet pipe 3033. The fifth cylinder 15 controls the sixth plug 17 to move backward, which can block the sixth liquid outlet pipe 3033.

[0034] like Figure 1 As shown, the first detection mechanism includes a support base 18 fixed to the right end of the base plate 1, a sixth cylinder 19 extending vertically and fixed to the upper end of the support base 18, a lifting plate 20 fixed to the lower piston rod end of the sixth cylinder 19, and a seventh plug 21 fixed to the bottom of the lifting plate 20. The seventh plug 21 is located above the injection port 3011, and an air pipe for connecting to the injection port 3011 is installed on the seventh plug 21. The sixth cylinder 19 controls the seventh plug 21 to move downward to block the injection port 3011.

[0035] like Figure 2As shown, the plugging device includes a seventh cylinder 22 and an eighth cylinder 23, which are fixed vertically to the lower end of the placement platform 2. An eighth plug 24, located below the water valve port 3034, is fixed to the piston rod end of the upper end of the seventh cylinder 22. A ninth plug 25, located below the water pump port 3035, is fixed to the piston rod end of the upper end of the eighth cylinder 23. The seventh cylinder 22 controls the eighth plug 24 to move upwards to block the water valve port 3034, and the eighth cylinder 23 controls the ninth plug 25 to move upwards to block the water pump port 3035.

[0036] The third outlet pipe 3021, the fourth outlet pipe 3031, and the fifth outlet pipe 3032 are all connected to the water valve port 3034, and the sixth outlet pipe 3033 is connected to the water pump port 3035. For example... Figure 7 As shown, the corresponding flow channels of the fourth outlet pipe 3031 and the fifth outlet pipe 3032 are both inside the lower body 303. The internal flow channel of the fifth outlet pipe 3032 passes through the welding position of the water pump port 3035. Therefore, the airtightness test of the water pump port 3035 can be performed through the fifth outlet pipe 3032. The flow channel of the sixth outlet pipe 3033 is located at the bottom of the lower body 303 and does not pass through the interior of the lower body 303. Therefore, the sixth outlet pipe 3033 does not need to participate in the internal leakage test.

[0037] like Figure 3 , Figure 4 As shown, a thermal management system flow channel plate airtightness testing device further includes a clamping device for pressing the flow channel plate 3 onto the placement platform 2. The clamping device includes a first pressure plate 26, a second pressure plate 27, a third pressure plate 28, and a fourth pressure plate 29. The left rear end of the lower body 303 has an outwardly protruding first protrusion 3036. A tenth cylinder 30 is fixed to the left rear end of the placement platform 2 at an angle. The piston rod end of the tenth cylinder 30 is fixed to the first pressure plate 26 for pressing on the top of the first protrusion 3036. The right rear end of the lower body 303 has an outwardly protruding second protrusion 3037. An eleventh cylinder 31 extending forward and backward is fixed to the right rear end of the placement platform 2. The piston rod end of the eleventh cylinder 31 is fixed to the first pressure plate 26 for pressing on the first protrusion 3036. The second pressure plate 27 is located on top of the two protrusions 3037; the lower body 303 has a third protrusion 3038 protruding outward at its left front end; a support platform 32 is fixed at the middle of the front end of the base plate 1; a twelfth cylinder 33 extending forward and backward is fixed on the top of the support platform 32; the piston rod end of the twelfth cylinder 33 is fixed to the third pressure plate 28 for pressing against the top of the third protrusion 3038; a thirteenth cylinder 34 extending left and right is fixed to the right front end of the base plate 1; the piston rod end of the thirteenth cylinder 34 is fixed to the fourth pressure plate 29 for pressing against the top of the sixth liquid outlet pipe 3033. The clamping device can press the flow channel plate 3 firmly onto the placement platform 2 to prevent the flow channel plate 3 from shaking during testing.

[0038] During external leakage detection, the first outlet pipe 3012, the second outlet pipe 3013, the third outlet pipe 3021, the fourth outlet pipe 3031, the fifth outlet pipe 3032, the sixth outlet pipe 3033, the water valve port 3034, and the water pump port 3035 are all blocked, and air is introduced into the injection port 3011. The amount of gas leakage inside the product is tested by a leak detector to determine whether the product is leaking externally.

[0039] During internal leakage testing, the injection port 3011, the first outlet pipe 3012, the second outlet pipe 3013, the water valve port 3034, and the water pump port 3035 are all blocked, while the sixth outlet pipe 3033 is left unused and not included in the test. Three sets of tests are performed during the testing:

[0040] The first group has all three outlet pipes (3021, 3031, and 3032) inlet with air. The second group has outlet pipes 3031 and 3032 open, with outlet pipe 3021 inlet. The third group has outlet pipes 3021 and 3031 open, with outlet pipe 3032 inlet. During testing, the tests are performed sequentially and automatically controlled by solenoid valves. A leak detector is used to measure the amount of gas leakage within the product to determine if there is an internal leak. If any of the three groups shows a leak, the product is deemed to have failed the internal leak test.

[0041] The present invention provides a thermal management system flow channel plate air tightness testing device, which can perform external and internal leakage detection and has a high degree of automation. It effectively solves the problem that traditional detection methods can only detect external leakage and cannot detect internal defects such as desoldering and poor soldering.

[0042] Of course, the above are only preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any simple modifications and equivalent structural changes made based on the contents of the present utility model specification and drawings should also be included within the patent protection scope of the present utility model.

Claims

1. A heat management system flow channel plate airtight detection device, it includes the bottom plate, the bottom plate top is fixed with a placement platform, the placement platform is placed with a flow channel plate, the flow channel plate includes from top to bottom distribution upper body, middle body and lower body, it is characterized by: The upper body top is equipped with the liquid injection port, the upper body left end is equipped with the first liquid outlet pipe, the upper body right front end is equipped to be equipped with the second liquid outlet pipe, the middle body left front end is equipped with the third liquid outlet pipe, the lower body front end is equipped with the fourth liquid outlet pipe, the fifth liquid outlet pipe, the sixth liquid outlet pipe from left to right distribution, the lower body bottom is equipped with water valve mouth and water pump mouth; The bottom plate top is installed with the plug device for opening or blocking the liquid injection port, the first liquid outlet pipe, the second liquid outlet pipe, the third liquid outlet pipe, the fourth liquid outlet pipe, the fifth liquid outlet pipe, the sixth liquid outlet pipe, water valve mouth and water pump mouth, the plug device includes the first detection mechanism for opening or blocking the liquid injection port, the second detection mechanism for opening or blocking the third liquid outlet pipe, the fourth liquid outlet pipe and the third detection mechanism for opening or blocking the fifth liquid outlet pipe, the first detection mechanism, the second detection mechanism, the third detection mechanism are all connected with gas source and leak detector through air pipe; It also includes the pressing device for pressing the flow channel plate on the placement platform.

2. The leak detection apparatus of claim 1, wherein: The plug device includes the first support fixed in the left end of the bottom plate, the first air cylinder fixed on the top of the first support and extending left and right, the first plug fixed on the end of the piston rod of the right end of the first air cylinder, the second support fixed in the right front end of the bottom plate, the second air cylinder fixed on the top of the second support and extending forward and backward, and the second plug fixed on the end of the piston rod of the rear end of the second air cylinder, the first plug is located on the left side of the first liquid outlet pipe, and the second plug is located in front of the second liquid outlet pipe.

3. The leak detection apparatus of claim 1, wherein: The second detection mechanism includes the third support fixed in the left front end of the bottom plate, the third air cylinder fixed on the top of the third support and extending forward and backward, and the third plug fixed on the end of the piston rod of the rear end of the third air cylinder, the third plug is located in front of the third liquid outlet pipe, and the third plug is installed with the air pipe for communicating the third liquid outlet pipe.

4. The hermetic test apparatus for a flow channel plate of a thermal management system according to claim 3, characterized by: The second detection mechanism further includes the fourth air cylinder fixed on the lower end of the third support and extending forward and backward, the fourth plug fixed on the end of the piston rod of the rear end of the fourth air cylinder, and the fourth plug is located in front of the fourth liquid outlet pipe, and the fourth plug is installed with the air pipe for communicating the fourth liquid outlet pipe.

5. The leak detection apparatus of claim 1, wherein: The third detection mechanism includes the fifth air cylinder fixed on the lower end of the second support and extending forward and backward, the fifth plug fixed on the end of the piston rod of the rear end of the fifth air cylinder, and the fifth plug is located in front of the fifth liquid outlet pipe, and the fifth plug is installed with the air pipe for communicating the fifth liquid outlet pipe.

6. A hermetic test apparatus for a flow channel plate of a thermal management system according to claim 5, characterized in that: The end of the piston rod of the rear end of the fifth air cylinder is further fixed with the sixth plug, the fifth plug is located on the left side of the sixth plug, and the sixth plug is located in front of the sixth liquid outlet pipe.

7. The leak detection apparatus of claim 1, wherein: The first detection mechanism includes the support seat fixed in the right end of the bottom plate, the sixth air cylinder fixed on the upper end of the support seat and extending upward and downward, the lifting plate fixed on the end of the piston rod of the lower end of the sixth air cylinder, and the seventh plug fixed on the bottom of the lifting plate, the seventh plug is located above the liquid injection port, and the seventh plug is installed with the air pipe for communicating the liquid injection port.

8. The thermal management system flow channel plate air tightness inspection apparatus of claim 1, wherein: The plug device comprises a seventh cylinder and an eighth cylinder fixed to the lower end of the placement table, a piston rod end of the upper end of the seventh cylinder is fixed with an eighth plug located below the water valve port, and a piston rod end of the upper end of the eighth cylinder is fixed with a ninth plug located below the water pump port.

9. The hermetic test apparatus for a flow channel plate of a thermal management system according to any one of claims 1 to 8, characterized in that: The third liquid outlet pipe, the fourth liquid outlet pipe and the fifth liquid outlet pipe are in communication with the water valve port, and the sixth liquid outlet pipe is in communication with the water pump port.

10. The leak detection apparatus of claim 1, wherein: The pressing device comprises a first pressing plate, a second pressing plate, a third pressing plate and a fourth pressing plate, the left rear end of the lower body has a first protrusion, the left rear end of the placement table is fixed with a tenth cylinder arranged obliquely, a piston rod end of the front end of the tenth cylinder is fixed with the first pressing plate for pressing on the top of the first protrusion; The right rear end of the lower body has a second protrusion, the right rear end of the placement table is fixed with an eleventh cylinder extending in front and back directions, a piston rod end of the front end of the eleventh cylinder is fixed with the second pressing plate for pressing on the top of the second protrusion; The left front end of the lower body has a third protrusion, a support table is fixed to the middle position of the front end of the bottom plate, the support table is fixed with a twelfth cylinder extending in front and back directions, a piston rod end of the rear end of the twelfth cylinder is fixed with the third pressing plate for pressing on the top of the third protrusion; The right front end of the bottom plate is fixed with a thirteenth cylinder extending in left and right directions, a piston rod end of the left end of the thirteenth cylinder is fixed with the fourth pressing plate for pressing on the top of the sixth liquid outlet pipe.

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