High-low-temperature low-pressure test box with rapid temperature change

Abstract

The utility model relates to a battery test high-low temperature low pressure test chamber with fast temperature change, especially relates to a high-low temperature low pressure test chamber with fast temperature change, comprising a test chamber and a water tank, the lower surface of the test chamber is fixedly connected with the water tank, the inner wall of the water tank is fixedly connected with a separator plate, the upper surface of the separator plate is fixedly connected with a heating pipe, and the heating pipe is fixedly connected with the water tank. A circulation assembly is arranged on the left side face of the water tank, a mounting box is arranged on the right side face of the water tank, a heat conduction box is fixedly connected into the test box, an air blowing assembly is arranged on the upper surface of the test box, water in the water tank is pumped through a three-way pipe a by a centrifugal pump a, and the water is discharged into a cavity between the test box and the heat conduction box through a liquid discharging pipe. And the centrifugal pump b pumps water in the test box and the heat conduction box through the water pumping pipe, the water is discharged into the water tank through the three-way pipe b, and the cycle is repeated, so that the problem of rapid temperature change is solved.

Description

Technical Field

[0001] The utility model relates to a high-low temperature and low-pressure test box with rapid temperature change, in particular to a high-low temperature and low-pressure test box with rapid temperature change for battery testing. Background Art

[0002] Humidity, temperature and low pressure can affect the performance of many products. The low-pressure high and low temperature humidity test chamber is mainly used to simulate complex experimental environments under the action of humidity, temperature and low pressure alone or simultaneously, to test the environmental adaptability and reliability of electronic technology products during transportation and storage, and to energize the test pieces to test electrical performance parameters at the same time.

[0003] High and low temperature environment test equipment is mainly used to simulate the extreme climate of high or low temperature in the natural environment to evaluate the performance of batteries under extreme conditions. When the low pressure test chamber is conducting a wet heat test under low pressure, a rapid temperature change is required. For this purpose, a high and low temperature low pressure test chamber with rapid temperature change is proposed. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a high-low-temperature and low-pressure test box with rapid temperature change.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-low temperature and low-pressure test box with rapid temperature change, comprising a test box and a water tank, the lower surface of the test box is fixedly connected to the water tank, the inner wall of the water tank is fixedly connected to a partition, the upper surface of the partition is fixedly connected to a heating pipe, the left side of the water tank is provided with a circulation component, the right side of the water tank is provided with an installation box, the interior of the test box is fixedly connected to a heat conduction box, the upper surface of the test box is provided with a blowing component, the upper surface of the test box is fixedly connected to a lifting frame, the interior of the lifting frame is provided with a lifting component, the right side of the lifting frame is slidably connected to the left side of the placement box, and a box door is installed on the front of the test box.

[0006] Preferably, the blowing assembly includes a servo motor mounted on the upper surface of the test box, and the output shaft of the servo motor passes through bearings mounted on the upper surfaces of the test box and the heat conduction box and is fixedly connected to the upper surface of the fan blade.

[0007] Preferably, a semiconductor refrigeration sheet is installed inside the installation box, a heat dissipation fan is installed at the heat dissipation end of the semiconductor refrigeration sheet, and a filter is installed on the right side of the inner wall of the installation box.

[0008] Preferably, the circulation component includes a centrifugal pump a installed on the left side of the water tank, the liquid suction end of the centrifugal pump a is connected to one end of the three-way pipe a, the other two ends of the three-way pipe a are respectively connected to the upper and lower sides of the left side of the water tank, a three-way valve a is installed on the upper surface of the three-way pipe a, and the discharge end of the centrifugal pump a is connected to the left side of the test box through a discharge pipe.

[0009] Preferably, the lifting assembly includes a screw rod rotatably connected to the upper surface of the inner wall of the lifting frame, the bottom end of the screw rod is fixedly connected to the upper surface of the bevel gear a, the outer surface of the bevel gear a is meshed with the outer surface of the bevel gear b, the outer surface of the screw rod is threadedly connected with a threaded sleeve, and the right side surface of the threaded sleeve is fixedly connected to the left side surface of the placement box.

[0010] Preferably, a centrifugal pump b is installed on the right side of the water tank, the suction end of the centrifugal pump b is connected to the right side of the test box through a suction pipe, the discharge end of the centrifugal pump b is connected to one end of a three-way pipe b, the other two ends of the three-way pipe b are respectively connected to the upper and lower sides of the right side of the water tank, and a three-way valve b is installed on the upper surface of the three-way pipe b.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model uses a centrifugal pump a to extract water from a water tank through a three-way pipe a, and discharges the water into a cavity between a test box and a heat conduction box through a discharge pipe, so as to quickly change the temperature inside the heat conduction box; a centrifugal pump b extracts water from the test box and the heat conduction box through a water extraction pipe, and discharges the water into the water tank through a three-way pipe b, and the cycle is repeated to achieve the problem of rapid temperature change.

[0013] The utility model drives the bevel gear a to rotate by rotating the bevel gear b, and the rotation of the bevel gear a drives the screw to rotate, and the rotation of the screw drives the threaded sleeve and the placement box to move upward, thereby raising the height of the batteries in the placement box, and the servo motor drives the fan blades to rotate, and the fan blades discharge the hot air or cold air inside the heat conduction box to the batteries inside the placement box, so that the air inside the heat conduction box is evenly discharged to the batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in the front view;

[0017] Figure 3It is a three-dimensional structural schematic diagram of the lifting frame and the placement box in the utility model;

[0018] In the figure: 1. Test box; 2. Water tank; 3. Partition; 4. Heat transfer box;

[0019] Blowing components: 51, servo motor; 52, fan blades; 6, lifting frame;

[0020] Lifting assembly: 71, bevel gear a; 72, bevel gear b; 73, screw rod; 74, threaded sleeve;

[0021] 8. Place the box;

[0022] Circulation components: 91, centrifugal pump a; 92, three-way pipe a; 93, three-way valve a; 94, drain pipe;

[0023] 10. Heating tube; 11. Installation box; 12. Cooling fan; 13. Semiconductor cooling sheet; 14. Filter; 15. Box door; 16. Centrifugal pump b; 17. Suction pipe; 18. Three-way pipe b; 19. Three-way valve b. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example

[0026] See also Figure 1-3 The utility model provides the following technical solutions: a high-low temperature and low-pressure test box with rapid temperature change, comprising a test box 1 and a water tank 2, the lower surface of the test box 1 is fixedly connected to the water tank 2, the inner wall of the water tank 2 is fixedly connected to a partition 3, the upper surface of the partition 3 is fixedly connected to a heating pipe 10, the left side of the water tank 2 is provided with a circulation component, the right side of the water tank 2 is provided with an installation box 11, the interior of the test box 1 is fixedly connected to a heat conduction box 4, the upper surface of the test box 1 is provided with a blowing component, the upper surface of the inner wall of the heat conduction box 4 is fixedly connected to a lifting frame 6, the interior of the lifting frame 6 is provided with a lifting component, the right side of the lifting frame 6 is slidably connected to the left side of the placement box 8, and the front of the test box 1 is provided with a box door 15.

[0027] Specifically, a semiconductor cooling sheet 13 is installed inside the installation box 11, a cooling fan 12 is installed at the heat dissipation end of the semiconductor cooling sheet 13, and a filter screen 14 is installed on the right side of the inner wall of the installation box 11;

[0028] The water below the partition plate 3 in the water tank 2 is cooled by the semiconductor cooling sheet 13, and the heat dissipation fan 12 dissipates heat at the heat dissipation end of the semiconductor cooling sheet 13;

[0029] The water in the cavity above the partition 3 is heated by the heating pipe 10 .

[0030] Specifically, the circulation assembly includes a centrifugal pump a91 installed on the left side of the water tank 2, the liquid extraction end of the centrifugal pump a91 is connected to one end of a three-way pipe a92, the other two ends of the three-way pipe a92 are respectively connected to the upper and lower sides of the left side of the water tank 2, a three-way valve a93 is installed on the upper surface of the three-way pipe a92, and the liquid discharge end of the centrifugal pump a91 is connected to the left side of the test box 1 through a liquid discharge pipe 94;

[0031] Specifically, a centrifugal pump b16 is installed on the right side of the water tank 2, the liquid suction end of the centrifugal pump b16 is connected to the right side of the test box 1 through the water suction pipe 17, the liquid discharge end of the centrifugal pump b16 is connected to one end of the three-way pipe b18, the other two ends of the three-way pipe b18 are respectively connected to the upper and lower sides of the right side of the water tank 2, and a three-way valve b19 is installed on the upper surface of the three-way pipe b18;

[0032] Turn the three-way valve a93, the centrifugal pump a91 extracts water from the water tank 2 through the three-way pipe a92, and discharges the water into the cavity between the test box 1 and the heat transfer box 4 through the drain pipe 94, so as to quickly change the temperature inside the heat transfer box 4;

[0033] By turning the three-way valve b19, the centrifugal pump b16 extracts water from the test box 1 and the heat transfer box 4 through the pumping pipe 17, and discharges the water into the water tank 2 through the three-way pipe b18, thus achieving rapid temperature change.

[0034] Specifically, the blowing assembly includes a servo motor 51 installed on the upper surface of the test box 1, and the output shaft of the servo motor 51 passes through the bearings installed on the upper surfaces of the test box 1 and the heat conduction box 4 and is fixedly connected to the upper surface of the fan blade 52;

[0035] The servo motor 51 drives the fan blades 52 to rotate, and the fan blades 52 discharge the hot air or cold air inside the temperature conduction box to the batteries inside the placement box 8.

[0036] Specifically, the lifting assembly includes a screw 73 rotatably connected to the upper surface of the inner wall of the lifting frame 6, the bottom end of the screw 73 is fixedly connected to the upper surface of the bevel gear a71, the outer surface of the bevel gear a71 is meshed with the outer surface of the bevel gear b72, the outer surface of the screw 73 is threadedly connected with a threaded sleeve 74, and the right side surface of the threaded sleeve 74 is fixedly connected to the left side surface of the placement box 8;

[0037] The bevel gear b72 is rotated to drive the bevel gear a71 to rotate, and the rotation of the bevel gear a71 drives the screw rod 73 to rotate, and the rotation of the screw rod 73 drives the threaded sleeve 74 and the placement box 8 to move upward, thereby raising the height of the batteries in the placement box 8.

[0038] The working principle and use process of this utility model:

[0039] The utility model, when in use:

[0040] The battery is placed inside the placement box 8, and the bevel gear b72 is rotated to drive the bevel gear a71 to rotate. The rotation of the bevel gear a71 drives the screw 73 to rotate. The rotation of the screw 73 drives the threaded sleeve 74 and the placement box 8 to move upward, thereby raising the height of the battery in the placement box 8. The semiconductor refrigeration sheet 13 cools the water below the partition 3 in the water tank 2. The heating tube 10 heats the water in the cavity above the partition 3. The centrifugal pump a91 draws water from the water tank 2 through the three-way pipe a92, and discharges it into the cavity between the test box 1 and the heat conduction box 4 through the drain pipe 94, thereby rapidly changing the temperature inside the heat conduction box 4. The centrifugal pump b16 draws water from the test box 1 and the heat conduction box 4 through the pumping pipe 17, and discharges it into the water tank 2 through the three-way pipe b18, thereby realizing rapid temperature change. The servo motor 51 drives the fan blades 52 to rotate, and the fan blades 52 discharge the hot air or cold air inside the heat conduction box to the battery inside the placement box 8.

[0041] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-low-temperature and low-pressure test chamber with rapid temperature change, comprising a test chamber (1) and a water tank (2), characterized in that: The lower surface of the test box (1) is fixedly connected to a water tank (2), the inner wall of the water tank (2) is fixedly connected to a partition (3), the upper surface of the partition (3) is fixedly connected to a heating pipe (10), the left side of the water tank (2) is provided with a circulation component, the right side of the water tank (2) is provided with an installation box (11), the interior of the test box (1) is fixedly connected to a heat conduction box (4), the upper surface of the test box (1) is provided with a blowing component, the upper surface of the inner wall of the heat conduction box (4) is fixedly connected to a lifting frame (6), the interior of the lifting frame (6) is provided with a lifting component, the right side of the lifting frame (6) is slidably connected to the left side of the placement box (8), and the front of the test box (1) is provided with a box door (15).

2. A high-low-temperature and low-pressure test chamber with rapid temperature change according to claim 1, characterized in that: The blowing assembly comprises a servo motor (51) mounted on the upper surface of the test box (1), and an output shaft of the servo motor (51) passes through bearings mounted on the upper surfaces of the test box (1) and the heat conduction box (4) and is fixedly connected to the upper surface of the fan blade (52).

3. The high-low-temperature and low-pressure test chamber with rapid temperature change according to claim 1, characterized in that: A semiconductor refrigeration sheet (13) is installed inside the installation box (11), a heat dissipation fan (12) is installed at the heat dissipation end of the semiconductor refrigeration sheet (13), and a filter screen (14) is installed on the right side of the inner wall of the installation box (11).

4. The high-low-temperature and low-pressure test chamber with rapid temperature change according to claim 1, characterized in that: The circulation assembly comprises a centrifugal pump a (91) installed on the left side of the water tank (2); the liquid suction end of the centrifugal pump a (91) is connected to one end of a three-way pipe a (92); the other two ends of the three-way pipe a (92) are respectively connected to the upper and lower sides of the left side of the water tank (2); a three-way valve a (93) is installed on the upper surface of the three-way pipe a (92); and the liquid discharge end of the centrifugal pump a (91) is connected to the left side of the test box (1) through a liquid discharge pipe (94).

5. The high-low-temperature and low-pressure test chamber with rapid temperature change according to claim 1, characterized in that: The lifting assembly comprises a screw rod (73) rotatably connected to the upper surface of the inner wall of the lifting frame (6); the bottom end of the screw rod (73) is fixedly connected to the upper surface of the bevel gear a (71); the outer surface of the bevel gear a (71) is meshed with the outer surface of the bevel gear b (72); the outer surface of the screw rod (73) is threadedly connected to a threaded sleeve (74); the right side surface of the threaded sleeve (74) is fixedly connected to the left side surface of the placement box (8).

6. The high-low-temperature and low-pressure test chamber with rapid temperature change according to claim 1, characterized in that: A centrifugal pump b (16) is installed on the right side of the water tank (2); the suction end of the centrifugal pump b (16) is connected to the right side of the test box (1) through a suction pipe (17); the discharge end of the centrifugal pump b (16) is connected to one end of a three-way pipe b (18); the other two ends of the three-way pipe b (18) are respectively connected to the upper and lower sides of the right side of the water tank (2); and a three-way valve b (19) is installed on the upper surface of the three-way pipe b (18).

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