Electronic water pump test cycle durability bench with safety protection and bench system

Abstract

The utility model provides a kind of electronic water pump test cycle endurance rack with safety protection, including first sealed box and first liquid storage tank, first liquid storage tank is set in first sealed box, and a plurality of stations are equipped on first liquid storage tank, station is evenly distributed along the axial direction of first liquid storage tank, and first liquid outlet and first liquid inlet for the connection of electronic water pump are equipped in each station, and first liquid outlet and first liquid inlet are communicated first liquid storage tank.The utility model further provides a kind of electronic water pump test cycle endurance rack with safety protection and rack system.The utility model is simple in structure, effectively reduces manufacturing cost, improves test efficiency and safety.

Description

Technical Field

[0001] This utility model relates to the field of electronic water pump testing technology, and in particular to an electronic water pump testing cycle durability test bench and test bench system with safety protection. Background Technology

[0002] With the rapid development of the automotive industry, vehicle thermal management systems play a crucial role in improving overall vehicle performance, energy efficiency, and safety. As a core component of thermal management systems, the electric water pump's application has expanded from traditional gasoline vehicles to new energy vehicles and hybrid vehicles, demonstrating unique technological advantages in different models.

[0003] If the electric water pump malfunctions, causing interruption or insufficient coolant circulation, the engine of gasoline and hybrid vehicles may not be able to dissipate heat effectively, easily leading to engine overheating. In new energy and hybrid vehicles, this can easily cause battery pack cooling failure, resulting in a rapid rise in battery temperature, degrading battery performance, and in severe cases, causing the battery to catch fire or explode. Therefore, durability testing of the electric water pump is crucial.

[0004] However, in existing technologies, conventional electronic water pump durability testing equipment is only suitable for ambient temperatures during testing, resulting in a limited testing environment and making it unsuitable for extreme conditions. Furthermore, conventional equipment is prone to liquid boiling in the reservoir during testing. Additionally, when liquid leakage occurs, the liquid level in the reservoir drops, causing the pump to continue running. Throughout the cycle of durability testing, the continuous reduction in liquid level can easily lead to damage from dry running. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the technical problem to be solved by this utility model is to provide an electronic water pump test cycle durability test bench and bench system with safety protection, which can adapt to extreme ambient temperatures to perform cycle durability tests on multiple electronic water pumps at the same time, and effectively protect the electronic water pumps from damage due to dry running.

[0006] This utility model proposes a test cycle durability test bench for an electronic water pump with safety protection, including a first sealed box and a first liquid storage tank. The first liquid storage tank is disposed inside the first sealed box and has a plurality of workstations. The workstations are evenly distributed along the axial direction of the first liquid storage tank, and each workstation has a first liquid outlet and a first liquid inlet for connecting to the electronic water pump. The first liquid outlet and the first liquid inlet are connected to the first liquid storage tank.

[0007] Preferably, the baffles on the side walls of the first sealed box are all transparent.

[0008] Preferably, the top of the liquid container is provided with multiple connection ports for connecting equipment pipelines.

[0009] Preferably, the first liquid storage tank has a second liquid inlet and a second liquid outlet on its side wall for connecting a heat exchange device.

[0010] Preferably, the first liquid storage tank has a viewing window at one end, and the viewing window has a transparent sealing plate.

[0011] Preferably, both the first inlet and the first outlet are equipped with flow control devices.

[0012] Preferably, the plurality of first sealed boxes are connected in parallel.

[0013] Another aspect of this utility model proposes a test bench system for the cyclic durability of an electronic water pump with safety protection, including a heat exchange device, a pressurization and replenishment device, a temperature detection device, a liquid level detection device, a control system, and the aforementioned bench. The bench includes a first liquid storage tank, and the electronic water pump is connected to a first inlet and a first outlet of the first liquid storage tank. The heat exchange device is connected to a second inlet and a second outlet on the first liquid storage tank. The pressurization and replenishment device is connected to the first liquid storage tank through a connector, and the temperature detection device is inserted into the first liquid storage tank through the connector. The liquid level detection device is disposed in the first liquid storage tank. The electronic water pump, the heat exchange device, the pressurization and replenishment device, the temperature detection device, and the liquid level detection device are all electrically connected to the control system.

[0014] Preferably, both the first liquid outlet and the second liquid outlet are equipped with a flow control device, and the flow control device is electrically connected to the control system.

[0015] Preferably, the pressurized liquid replenishment device includes a second sealed box and a second liquid storage tank. The second liquid storage tank is disposed inside the second sealed box. The second liquid storage tank has a third liquid inlet, a third liquid outlet and an air inlet. The third liquid outlet is connected to the connection port, the air inlet is connected to an air source, and the third liquid inlet is connected to a liquid supply source.

[0016] As described above, the present invention relates to an electronic water pump testing cycle durability test bench and system with safety protection, which has the following beneficial effects:

[0017] This utility model provides a test bench for the cyclic durability of electronic water pumps with safety protection. The first liquid storage tank has multiple stations, and each electronic water pump can be connected to a first and second inlet at each station, enabling simultaneous testing of multiple pumps. The first liquid storage tank is equipped with a liquid level detection device. If leakage occurs and the liquid level falls below a predetermined value, the cyclic durability test can be stopped, preventing damage from dry running. This utility model has a simple structure, effectively reducing manufacturing costs and improving testing efficiency.

[0018] This utility model provides a test bench system for the cyclic durability of an electronic water pump with safety protection. The system controls a heat exchange device, a pressurization and replenishment device, a temperature detection device, a liquid level detection device, and an electronic water pump. When the temperature detection device detects a temperature exceeding a preset temperature, the control system activates the heat exchange device to exchange heat with the first liquid storage tank, thereby lowering the liquid temperature and preventing boiling. If the electronic water pump leaks, causing the liquid level in the first storage tank to drop to a predetermined value, the control system stops the electronic water pump to protect it. This utility model features a simple overall system structure, effectively reducing manufacturing costs and improving testing efficiency and safety. Attached Figure Description

[0019] Figure 1 A three-dimensional schematic diagram of a test cycle durability test bench for an electronic water pump with safety protection provided in an embodiment of this utility model.

[0020] Figure 2 This is a front view of an electronic water pump test cycle durability test bench with safety protection provided in an embodiment of the present invention.

[0021] Figure 3 A side view of a test cycle durability test bench for an electronic water pump with safety protection, provided in an embodiment of this utility model.

[0022] Figure 4 This is a top view of an electronic water pump test cycle durability test bench with safety protection provided in an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the assembly of an electronic water pump test cycle durability test bench with safety protection, provided as an embodiment of the present invention.

[0024] Figure 6 A schematic diagram showing the connection between a test cycle durability test bench with safety protection and a pressurization and replenishment device for an embodiment of this utility model.

[0025] Figure 7 This is an overall schematic diagram of an electronic water pump test cycle durability test bench system with safety protection provided in an embodiment of the present invention.

[0026] Figure 8 A flowchart illustrating the workflow of a test cycle durability test bench system with safety protection for an electronic water pump provided in an embodiment of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100. First sealed box; 200. First liquid storage tank; 210. First liquid inlet; 220. First liquid outlet; 230. Connection port; 240. Second liquid inlet; 250. Second liquid outlet; 260. Viewing window; 300. Electronic water pump; 400. Pressurization and replenishment device; 410. Second sealed box; 420. Second liquid storage tank; 421. Third liquid inlet; 422. Third liquid outlet; 423. Air inlet; 500. Flow control device; 600. Control system; 700. Heat exchange device; 800. Temperature detection device; 900. Liquid level detection device. Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0030] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, the terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this utility model.

[0031] like Figures 1 to 5As shown, an embodiment of a test cycle durability test bench for electronic water pumps with safety protection includes a first sealed box 100 and a first liquid storage tank 200. The first liquid storage tank 200 is suspended inside the first sealed box 100. The first liquid storage tank 200 has several stations for installing electronic water pumps 300, evenly distributed along the axial direction of the first liquid storage tank 200. Each station has a first inlet 210 and a first outlet 220 for connecting the electronic water pump 300, and the first inlet 210 and first outlet 220 are connected to the first liquid storage tank 200. A liquid level detection device is installed inside the first liquid storage tank 200. The liquid level detection device and the electronic water pump are connected to a control system. The control system can control the operation of the electronic water pump based on the signal fed back by the liquid level detection device. The first sealed boxes can be connected in parallel to increase the number of stations, allowing multiple electronic water pumps to be tested simultaneously. The liquid level detection device includes, but is not limited to, a float level gauge, and can also be a capacitive level gauge, a hydrostatic level gauge, etc.

[0032] In use, the electronic water pump to be tested is sealed and connected to the first inlet 210 and the first outlet 220 via a conduit. The control system then starts the electronic water pump 300, allowing liquid to enter from the first outlet 220. The electronic water pump 300 pumps the liquid through the first inlet 210 into the first storage tank 200, thus circulating the liquid. The remaining electronic water pumps are tested in the same manner for cyclic durability testing. During this process, if any electronic water pump leaks, the liquid level in the first storage tank 200 will drop. When the liquid level drops to a predetermined value, the level detection device sends feedback to the control system, which then stops the electronic water pump 300 to prevent damage from idling. It should be noted that this test bench can test the cyclic durability of the electronic water pump 300 in ambient temperatures ranging from -40℃ to 125℃, reducing the limitations of the testing environment.

[0033] In one embodiment, the baffles on the side walls of the first sealed container 100 are all transparent, preferably transparent glass. One end of the first liquid storage tank 200 is provided with a viewing window 260, and this viewing window 260 is equipped with a transparent sealing plate, which includes, but is not limited to, transparent glass. In use, the liquid is prepared into a red solution, and the liquid level changes inside the liquid storage tank 200 can be easily observed through the viewing window 260 from the first sealed container 100.

[0034] In one embodiment, the top of the first liquid storage tank 200 is provided with multiple connection ports 230 for connecting equipment pipelines, including pressurization and replenishment device pipelines, temperature detection pipelines, etc. The connection ports 230 are threaded and can be connected to water pipe pagoda connectors, parallel circulation pipeline connectors, pressure relief valves, etc.

[0035] In one embodiment, the side wall of the first liquid storage tank 200 is provided with a second inlet 240 and a second outlet 250 for connecting a heat exchange device. Simultaneous cyclic durability testing by multiple electric water pumps 300 can easily cause the liquid temperature inside the first liquid storage tank 200 to rise. When the temperature of the first liquid storage tank 200 rises, liquid enters the heat exchange device from the second outlet 250 to cool the liquid. After cooling, the liquid flows through a pipeline back into the first liquid storage tank via the second inlet 240, thus circulating and effectively reducing the temperature of the liquid inside the first liquid storage tank 200. Furthermore, when the ambient temperature is low, causing insufficient liquid temperature in the first liquid storage tank 200, the temperature can be increased through the heat exchange device.

[0036] In one embodiment, both the first inlet 210 and the first outlet 220 are equipped with flow control devices 500. These flow control devices 500 include, but are not limited to, mechanical water valves, and may also include proportional valves. According to testing requirements, the flow rate of the electronic water pump can be adjusted manually by regulating the mechanical water valves of the first outlet 210 and the first outlet 220. Alternatively, the flow rate of the electronic water pump 300 can be adjusted by controlling the proportional valve through the control system. If it is necessary to disassemble and install a particular electronic water pump, the flow control devices 500 of both the first inlet 210 and the first outlet 220 can be simultaneously closed to replace the pump without affecting the operation of electronic water pumps at other workstations.

[0037] like Figures 6 to 8 As shown, this utility model also provides a test bench system for the cyclic durability of an electronic water pump with safety protection, including a heat exchange device 700, a pressurizing and replenishing device 400, a temperature detection device 800, a liquid level detection device 900, a control system 600, and the aforementioned bench. The bench includes a first liquid storage tank 200. The electronic water pump 300 is connected to the first liquid inlet 210 and the first liquid outlet 220 of the first liquid storage tank 200. The heat exchange device 700 is connected to the second liquid inlet 240 and the second liquid outlet 250 on the first liquid storage tank 200. The pressurizing and replenishing device is connected to the first liquid storage tank 200 through a connection port. The temperature detection device 800 is inserted into the first liquid storage tank 200 through the connection port. The liquid level detection device 900 is disposed in the first liquid storage tank 200. The electronic water pump 300, the heat exchange device 700, the pressurizing and replenishing device 400, the temperature detection device 800, and the liquid level detection device 900 are all electrically connected to the control system.

[0038] In operation, the electronic water pump 300 is activated by the control system. The temperature detection device 800 monitors the temperature of the solution in the first storage tank 200. If the temperature is higher or lower than a predetermined range, the control system activates the heat exchange device 700, allowing the solution in the tank 200 to circulate and cool or heat itself, ensuring the temperature in the first storage tank 200 remains within the predetermined range. This guarantees the smooth operation of the electronic water pump during the cyclic durability test. When the liquid temperature in the first storage tank 200 is high, to prevent boiling, the control system can control the pressurizing and replenishing device 400 to introduce compressed air at 1.2 bar to 1.6 bar into the first storage tank 200 to raise the liquid's boiling point. If the electronic water pump leaks, causing the liquid level in the first storage tank 200 to fall below a preset value, the control system can stop the electronic water pump 300, the heat exchange device 700, and the pressurizing and replenishing device 400 to prevent damage from idling. The control system controls the pressurization and replenishment device 400 to replenish the first liquid storage tank 200 with cooling liquid to replenish the leaked liquid, so that the liquid in the first liquid storage tank 200 is maintained at the initial state.

[0039] In one embodiment, both the first inlet 210 and the first outlet 220 are equipped with flow control devices, which are electrically connected to the control system. If any electronic water pump 300 leaks, the flow control device 500 can be shut down through the control system, allowing for the individual removal or replacement of the electronic water pump 300 while ensuring the continued operation of the other electronic water pumps 300, thus effectively improving testing efficiency.

[0040] In one embodiment, the pressurized liquid replenishment device 400 includes a second sealed box 410 and a second liquid storage tank 420. The second liquid storage tank 420 is disposed inside the second sealed box 410. The second liquid storage tank 420 has a third liquid inlet 421, a third liquid outlet 422, and an air inlet 423. The third liquid outlet 422 is connected to a connection port 230, the air inlet 423 is connected to an air source, and the third liquid inlet 421 is connected to a liquid supply source. The second liquid storage tank 420 is also equipped with a pressure relief valve. When the relative pressure of the pressure relief valve reaches 2 bar, the valve opens to release pressure, effectively preventing excessive internal pressure caused by the rise in internal solution temperature when the system is operating at high temperatures.

[0041] When in use, the air source supplies air to the air inlet 423, so that the liquid in the second liquid storage tank 420 flows through the water pipe from the third liquid outlet 422 through the connection port 230 into the first liquid storage tank 420, so as to replenish the first liquid storage tank 420.

[0042] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A test bench for the cyclic durability of an electronic water pump with safety protection, characterized in that, The system includes a first sealed box (100) and a first liquid storage tank (200). The first liquid storage tank (200) is located inside the first sealed box (100). The first liquid storage tank (200) has several workstations, which are evenly distributed along the axial direction of the first liquid storage tank (200). Each workstation has a first inlet (210) and a first outlet (220) for connection to an electronic water pump (300). The first inlet (210) and the first outlet (220) are connected to the first liquid storage tank (200). The first liquid storage tank (200) is equipped with a liquid level detection device.

2. The electronic water pump test cycle durability test bench with safety protection according to claim 1, characterized in that, The baffles on the side walls of the first sealed box (100) are all transparent.

3. The electronic water pump test cycle durability test bench with safety protection according to claim 1 or 2, characterized in that, The top of the first liquid storage tank (200) is provided with multiple connection ports (230) for connecting equipment pipelines.

4. The electronic water pump test cycle durability test bench with safety protection according to claim 1, characterized in that, The first liquid storage tank (200) has a second liquid inlet (240) and a second liquid outlet (250) on its side wall for connecting a heat exchange device.

5. The electronic water pump test cycle durability test bench with safety protection according to claim 2, characterized in that, The first liquid storage tank (200) has a viewing window (260) at one end, and the viewing window (260) has a transparent sealing plate.

6. The electronic water pump test cycle durability test bench with safety protection according to any one of claims 1-5, characterized in that, Both the first liquid inlet (210) and the first liquid outlet (220) are equipped with flow control devices (500).

7. The electronic water pump test cycle durability test bench with safety protection according to claim 1, characterized in that, The multiple first sealed boxes (100) are connected in parallel.

8. A test bench system for the cyclic durability of an electronic water pump with safety protection, characterized in that, The device includes a heat exchange device, a pressurizing and replenishing device (400), a temperature detection device, a liquid level detection device, a control system, and a stand as described in any one of claims 1-7. The stand includes a first liquid storage tank (200), and an electronic water pump (300) is connected to the first liquid storage tank (200) via a first inlet (210) and a first outlet (220). The heat exchange device is connected to the first liquid storage tank via a second inlet (240) and a second outlet (250). The pressurizing and replenishing device is connected to the first liquid storage tank (200) via a connection port. The temperature detection device is inserted into the first liquid storage tank (200) via a connection port. The liquid level detection device is disposed in the first liquid storage tank (200). The electronic water pump (300), the heat exchange device, the pressurizing and replenishing device (400), the temperature detection device, and the liquid level detection device are all electrically connected to the control system.

9. The electronic water pump test cycle durability test bench system with safety protection according to claim 8, characterized in that, Both the first liquid inlet (210) and the first liquid outlet (220) are equipped with flow control devices, which are electrically connected to the control system.

10. The electronic water pump test cycle durability test bench system with safety protection according to claim 8 or 9, characterized in that, The pressurized liquid replenishment device (400) includes a second sealed box (410) and a second liquid storage tank (420). The second liquid storage tank (420) is disposed inside the second sealed box (410). The second liquid storage tank (420) is provided with a third liquid inlet (421), a third liquid outlet (422) and an air inlet (423). The third liquid outlet (422) is connected to the connection port (230), the air inlet (423) is connected to the air source, and the third liquid inlet (421) is connected to the liquid supply source.

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