Special high and low temperature environment box for testing performance of electric fuel pump

Abstract

The utility model relates to the technical field of environment test boxes, and discloses a special high and low temperature environment box for testing the performance of an electric fuel pump, which comprises a box body, the front side of the box body is rotatably connected with a connecting assembly, the connecting assembly is convenient for detecting the electric fuel pump, the rear side of the box body is fixedly connected with a permeable plate, and the permeable plate is fixedly connected with a water inlet. The rear side of the box body is fixedly connected with a heating box, the interior of the heating box is fixedly connected with electric heating wires which are uniformly distributed, the left side of the upper part of the box body is fixedly connected with a first air extracting pump, and the output end of the first air extracting pump is fixedly connected with an air conveying pipe. According to the utility model, the internal temperature of the box body can be accurately controlled, the influence of overlarge local temperature difference on the test result is avoided, the comprehensive and accurate test on the performance of the electric fuel pump is ensured, the equipment has a humidity control function, and different humidity environments can be simulated in the test process.

Description

Technical Field

[0001] This utility model relates to the field of environmental test chamber technology, and in particular to a high and low temperature environmental chamber specifically for testing the performance of electric fuel pumps. Background Technology

[0002] With the continuous development of automotive technology, electric fuel pumps are playing an increasingly important role in car engines. The performance of the electric fuel pump is directly related to the normal operation of the engine, therefore, comprehensive and accurate testing is particularly important. To ensure the reliability and stability of the electric fuel pump under various environmental conditions, it is often necessary to test it under different temperature and humidity conditions.

[0003] Traditional electric fuel pump performance testing typically employs standard environmental chambers. However, the temperature and humidity control precision of these chambers is often insufficient to meet more demanding testing requirements. Especially when conducting high and low temperature tests on electric fuel pumps, the efficiency and accuracy of the temperature control system, as well as the impact of humidity control on the test results, all affect the accuracy and comprehensiveness of the results. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high and low temperature environment chamber specifically for testing the performance of electric fuel pumps, aiming to improve the problem that the temperature and humidity control accuracy in the existing technology is often insufficient and difficult to meet the higher testing requirements.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high and low temperature environment chamber for testing the performance of an electric fuel pump, comprising a chamber body, a connecting assembly rotatably connected to the front side of the chamber body for convenient testing of the electric fuel pump, a vent plate fixedly connected to the rear side of the chamber body, a heating chamber fixedly connected to the rear side of the chamber body, uniformly distributed heating wires fixedly connected inside the heating chamber, a first suction pump fixedly connected to the upper left side of the chamber body, an air supply pipe fixedly connected to the output end of the first suction pump, the air supply pipe fixedly connected to the rear side of the heating chamber, a second suction pump fixedly connected to the upper right side of the chamber body, a delivery pipe fixedly connected to the output end of the second suction pump, a cooler fixedly connected to the left end of the delivery pipe, a connecting pipe fixedly connected to the output end of the cooler, and a screening frame fixedly connected to the bottom end of the connecting pipe.

[0006] As a further description of the above technical solution:

[0007] The connecting assembly includes a door, which is rotatably connected to the front of the box body. A viewing window is fixedly connected inside the door. A control panel is fixedly connected to the right side of the box body. A fixed frame is fixedly connected to the lower inside of the box body. Hydraulic rods are fixedly connected to both sides inside the fixed frame. A support block is fixedly connected to the output end of the hydraulic rod. A limit block is fixedly connected to the opposite side of the support block. A bearing plate is fixedly connected to the upper side of the support block.

[0008] As a further description of the above technical solution:

[0009] A base plate is fixedly connected to the rear side of the box, a water tank is fixedly connected to the upper side of the base plate, a water inlet is fixedly connected to the upper side of the water tank, and a humidification component is fixedly connected to the left side of the water tank. The humidification component can simulate different humidity environments during the test.

[0010] As a further description of the above technical solution:

[0011] The humidification component includes a water outlet pipe, which is fixedly connected to the left side of the water storage tank. A water pump is fixedly connected to the left end of the water outlet pipe, and a connecting pipe is fixedly connected to the output end of the water pump. An atomizing nozzle is fixedly connected to the right end of the connecting pipe.

[0012] As a further description of the above technical solution:

[0013] The atomizing nozzle is fixedly connected to the inside left side of the housing, and the water pump is fixedly connected to the upper side of the base plate.

[0014] As a further description of the above technical solution:

[0015] The screening frame is fixedly connected to the upper side of the inside of the box.

[0016] As a further description of the above technical solution:

[0017] Limiting grooves are provided on both sides of the fixed frame, and limiting blocks are slidably connected inside the limiting grooves.

[0018] As a further description of the above technical solution:

[0019] The cooler is fixedly connected to the upper side of the housing.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the control panel facilitates observation of the internal temperature of the chamber. By activating the first air pump, gas is transported to the gas delivery pipe and the interior of the heating chamber. The installed heating wire heats the gas, and the hot gas enters the chamber from inside the vent plate, heating the interior of the chamber. By activating the second air pump, gas enters the delivery pipe and the interior of the cooler, and the installed cooler cools the gas. The cold gas enters the screening frame from inside the connecting pipe and is ejected, cooling the interior of the chamber. This allows for precise control of the internal temperature of the chamber, avoiding the influence of excessive local temperature differences on the test results, and ensuring comprehensive and accurate testing of the electric fuel pump performance.

[0022] 2. In this utility model, by starting the water pump, the water outlet pipe is driven to draw water from the storage tank. The water flows from inside the water outlet pipe into the connecting pipe and the atomizing nozzle, and then sprays out from inside the atomizing nozzle. This enables the equipment to have a humidity control function, which can simulate different humidity environments during the test and further verify the performance stability of the electric fuel pump under humid conditions. Attached Figure Description

[0023] Figure 1 A perspective view of a high and low temperature environmental chamber for testing the performance of an electric fuel pump, as proposed in this utility model;

[0024] Figure 2 This is a rear view of a high and low temperature environmental chamber specifically designed for testing the performance of an electric fuel pump, as proposed in this utility model.

[0025] Figure 3 This is a cross-sectional view of the high and low temperature environment chamber for testing the performance of an electric fuel pump, as proposed in this utility model.

[0026] Figure 4 This is a schematic diagram of the internal structure of the heating chamber of a high and low temperature environment chamber specifically for testing the performance of an electric fuel pump, as proposed in this utility model.

[0027] Figure 5 This is a schematic diagram of the support component structure of a high and low temperature environment chamber for testing the performance of an electric fuel pump, as proposed in this utility model.

[0028] Legend:

[0029] 1. Box body; 2. Box door; 3. Viewing window; 4. Control panel; 5. Fixing frame; 6. Hydraulic rod; 7. Support block; 8. Limiting block; 9. Limiting groove; 10. Bearing plate; 11. Ventilation plate; 12. Heating box; 13. Heating wire; 14. First air pump; 15. Air supply pipe; 16. Second air pump; 17. Delivery pipe; 18. Refrigerator; 19. Connecting pipe; 20. Screening frame; 21. Base plate; 22. Water storage tank; 23. Water inlet; 24. Water outlet pipe; 25. Water pump; 26. Connecting pipe; 27. Atomizing nozzle. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 - Figure 5 This utility model provides an embodiment of a high and low temperature environmental chamber for testing the performance of an electric fuel pump. The chamber includes a body 1, with a connecting assembly rotatably connected to the front of the body 1 for convenient testing of the electric fuel pump. A vent plate 11 is fixedly connected to the rear of the body 1, and a heating chamber 12 is also fixedly connected to the rear of the body 1. Evenly distributed heating wires 13 are fixedly connected inside the heating chamber 12. A first suction pump 14 is fixedly connected to the upper left side of the body 1, and an air supply pipe 15 is fixedly connected to the output end of the first suction pump 14, which is fixedly connected to the rear of the heating chamber 12. A second suction pump 16 is fixedly connected to the upper right side of the body 1. The output end is fixedly connected to a conveying pipe 17, the left end of the conveying pipe 17 is fixedly connected to a cooler 18, the output end of the cooler 18 is fixedly connected to a connecting pipe 19, and the bottom end of the connecting pipe 19 is fixedly connected to a screening frame 20; the connecting assembly includes a door 2, which is rotatably connected to the front side of the box body 1, and a viewing window 3 is fixedly connected inside the door 2. A control panel 4 is fixedly connected to the right side of the box body 1, and a fixed frame 5 is fixedly connected to the lower inside of the box body 1. Hydraulic rods 6 are fixedly connected to both sides inside the fixed frame 5, and a support block 7 is fixedly connected to the output end of the hydraulic rod 6. A limit block 8 is fixedly connected to the side of the support block 7 that is furthest away from it, and a bearing plate 10 is fixedly connected to the upper side of the support block 7.

[0032] Manually open the door 2, and activate the hydraulic rod 6 to move the support block 7 and the bearing plate 10. Simultaneously, the movement of the support block 7 causes the limiting block 8 to slide inside the limiting groove 9. Place the electric fuel pump on the upper side of the bearing plate 10, and activate the hydraulic rod 6 to return the support block 7 and the bearing plate 10 to their original positions. The control panel 4 facilitates observation of the internal temperature of the box 1. Activating the first air pump 14 drives gas to be delivered to the gas pipe 15 and the heating box 12. The electric heating wire 13 heats the gas. The hot gas enters the box 1 from the vent plate 11, heating the interior of the box 1. Activating the second air pump 16 drives gas to the delivery pipe 17 and the cooler 18. The cooler 18 cools the gas. The cold gas enters the screening frame 20 from the connecting pipe 19 and is ejected, cooling the interior of the box 1. This system enables precise control of the internal temperature of the box 1.

[0033] Reference Figure 1 , Figure 2 , Figure 3 A base plate 21 is fixedly connected to the rear side of the housing 1. A water storage tank 22 is fixedly connected to the upper side of the base plate 21. A water inlet 23 is fixedly connected to the upper side of the water storage tank 22. A humidification component is fixedly connected to the left side of the water storage tank 22. The humidification component can simulate different humidity environments during the test. The humidification component includes a water outlet pipe 24, which is fixedly connected to the left side of the water storage tank 22. A water pump 25 is fixedly connected to the left end of the water outlet pipe 24. A connecting pipe 26 is fixedly connected to the output end of the water pump 25. An atomizing nozzle 27 is fixedly connected to the right end of the connecting pipe 26.

[0034] By starting the water pump 25, the water outlet pipe 24 is driven to draw water from the water storage tank 22. The water flows from the inside of the water outlet pipe 24 into the connecting pipe 26 and the atomizing nozzle 27, and then sprays out from the inside of the atomizing nozzle 27, which enables the equipment to have a humidity control function.

[0035] Reference Figure 1 - Figure 5 The atomizing nozzle 27 is fixedly connected to the inside left side of the box 1, the water pump 25 is fixedly connected to the upper side of the base plate 21, the screening frame 20 is fixedly connected to the inside upper side of the box 1, the fixed frame 5 has limit grooves 9 on both sides, and the limit blocks 8 are slidably connected inside the limit grooves 9, and the cooler 18 is fixedly connected to the upper side of the box 1.

[0036] The atomizing nozzle 27 is fixedly connected to the inside left side of the housing 1, and the water pump 25 is fixedly connected to the upper side of the base plate 21, which serves to fix and support the atomizing nozzle 27 and the water pump 25; the screening frame 20 is fixedly connected to the inside upper side of the housing 1, which serves to support and fix the screening frame 20; the fixed frame 5 has limit grooves 9 on both sides, and the limit blocks 8 are slidably connected inside the limit grooves 9, which serves to support and limit the bearing plate 10; the cooler 18 is fixedly connected to the upper side of the housing 1, which serves to fix and support the cooler 18.

[0037] Working Principle: When using this device, manually open the door 2. Activate the hydraulic rod 6, which moves the support block 7, causing it to move. Simultaneously, the support block 7 moves the limiting block 8, which slides within the limiting groove 9. Place the electric fuel pump on top of the supporting plate 10. Activate the hydraulic rod 6 again, moving the support block 7 and restoring the supporting plate 10 to its original position. Observe the control panel 4 to control the internal temperature of the housing 1. Activate the first suction pump 14, which delivers gas to the gas delivery pipe 15. The gas then enters the heating chamber 12 from the gas delivery pipe 15, where the heating wire 13 heats the gas. The hot gas enters the housing 1 from the vent plate 11, further heating the interior of the housing 1. Activate the second suction pump 16, which delivers gas into the delivery pipe 17, where it enters the cooler 18. The cooler 18 then heats the gas... The cooling process involves cold air entering the connecting pipe 19 from inside the cooler 18, then entering the screening frame 20, where it is cooled before being sprayed out into the chamber 1. This cooling process allows for precise temperature control within the chamber 1, preventing excessive local temperature differences from affecting the test results and ensuring comprehensive and accurate testing of the electric fuel pump's performance. The water pump 25 is activated, driving the water outlet pipe 24 to draw water from the water storage tank 22. Water flows from the tank 22 into the outlet pipe 24, then through the pump 25 into the connecting pipe 26, and finally into the atomizing nozzle 27 before being sprayed out. This provides humidity control functionality, simulating different humidity environments during testing and further verifying the electric fuel pump's performance stability under humid conditions.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high and low temperature environmental chamber dedicated to performance test of an electric fuel pump, comprising a cabinet (1), characterized in that: The front side of the box (1) is rotationally connected with a connecting assembly, which facilitates the detection of the electric fuel pump, the rear side of the box (1) is fixedly connected with a breathable plate (11), the rear side of the box (1) is fixedly connected with a heating box (12), the inside of the heating box (12) is fixedly connected with evenly distributed electric heating wires (13), the upper left side of the box (1) is fixedly connected with a first air suction pump (14), the output end of the first air suction pump (14) is fixedly connected with a gas conveying pipe (15), the gas conveying pipe (15) is fixedly connected to the rear side of the heating box (12), the upper right side of the box (1) is fixedly connected with a second air suction pump (16), the output end of the second air suction pump (16) is fixedly connected with a conveying pipe (17), the left end of the conveying pipe (17) is fixedly connected with a refrigerator (18), the output end of the refrigerator (18) is fixedly connected with a connecting pipe (19), and the bottom end of the connecting pipe (19) is fixedly connected with a screening frame (20).

2. The high and low temperature environmental chamber for performance test of electric fuel pump according to claim 1, characterized in that: The connecting assembly comprises a box door (2), which is rotationally connected to the front side of the box (1), the inside of the box door (2) is fixedly connected with a perspective window (3), the right side of the box (1) is fixedly connected with a control panel (4), the inside of the lower side of the box (1) is fixedly connected with a fixed frame (5), the inside of the fixed frame (5) is fixedly connected with a hydraulic rod (6) on both sides, the output end of the hydraulic rod (6) is fixedly connected with a supporting block (7), the side away from the supporting block (7) is fixedly connected with a limiting block (8), and the upper side of the supporting block (7) is fixedly connected with a bearing plate (10).

3. The high and low temperature environmental chamber for performance test of electric fuel pump of claim 1, wherein: The rear side of the box (1) is fixedly connected with a bottom plate (21), the upper side of the bottom plate (21) is fixedly connected with a water storage tank (22), the upper side of the water storage tank (22) is fixedly connected with a water inlet (23), the left side of the water storage tank (22) is fixedly connected with a humidifying assembly, and the humidifying assembly can simulate different humidity environments during the test.

4. The high and low temperature environmental chamber for performance test of electric fuel pump of claim 3, characterized in that: The humidifying assembly comprises a water outlet pipe (24), the water outlet pipe (24) is fixedly connected to the left side of the water storage tank (22), the left end of the water outlet pipe (24) is fixedly connected with a water pump (25), the output end of the water pump (25) is fixedly connected with a communication pipe (26), and the right end of the communication pipe (26) is fixedly connected with an atomizing nozzle (27).

5. The high and low temperature environmental chamber for performance test of electric fuel pump of claim 4, wherein: The atomizing nozzle (27) is fixedly connected to the inside left side of the box (1), and the water pump (25) is fixedly connected to the upper side of the bottom plate (21).

6. The high and low temperature environmental chamber for performance test of electric fuel pump of claim 1, wherein: The screening frame (20) is fixedly connected to the inside upper side of the box (1).

7. The high and low temperature environmental chamber for performance test of electric fuel pump of claim 2, characterized in that: Both sides of the fixed frame (5) are provided with limiting grooves (9), and the limiting grooves (9) are slidably connected with limiting blocks (8).

8. The high and low temperature environmental chamber for performance test of electric fuel pump of claim 1, wherein: The refrigerator (18) is fixedly connected to the upper side of the box (1).

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