High and low temperature test box for testing power battery

Abstract

The utility model discloses a high and low temperature test box for testing a power battery, relates to the technical field of battery detection, and provides the following scheme aiming at the problems proposed in the background technology: the high and low temperature test box comprises a box body, the front surface of the box body is provided with a detection groove, the front surface of the box body is rotatably connected with a sealing door, and the inner rear wall of the detection groove is fixedly connected with a positioning assembly; heating devices and cooling devices are fixedly connected to the inner bottom wall, the inner top wall, the left inner wall and the right inner wall of the detection groove, and a feeding assembly is rotationally connected to the upper surface of the positioning assembly. According to the utility model, through the arrangement of the positioning assembly, during use, four corners of a battery can be locked by utilizing the lateral extrusion plate, the first forward extrusion plate and the second forward extrusion plate, so that the shielding area of the surface of the battery is reduced, the battery is prevented from being in direct contact with the inner wall of the detection groove, and the contact area between high-temperature and low-temperature air and the battery is increased; therefore, the accuracy of detection data of the battery is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, and in particular to a high and low temperature test chamber for testing power batteries. Background Technology

[0002] A power battery is a power source that provides power to tools, primarily referring to the batteries that power electric vehicles, electric trains, electric bicycles, and golf carts. Power batteries are a core component of new energy vehicles and an important direction for future energy transition. To ensure production quality, power batteries typically undergo high and low temperature testing after production, thus requiring the use of high and low temperature testing chambers.

[0003] Currently, high and low temperature test chambers typically place the power battery directly inside the test chamber during testing, with the bottom of the battery in complete contact with the inner wall of the chamber. The high and low temperature air inside the chamber can only conduct high and low temperature tests on the bottom of the battery through the inner wall of the chamber. Due to the different materials of the inner wall of the test chamber and the inability of the high and low temperature air to directly contact the bottom of the battery, the temperature of the bottom of the battery can easily differ from the temperature of other surfaces, thus reducing the accuracy of the battery test data and indicating room for improvement. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high and low temperature test chamber for testing power batteries.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high and low temperature test chamber for testing power batteries includes a chamber body. A test groove is provided on the front of the chamber body. A sealing door is rotatably connected to the front of the chamber body. A positioning component is fixedly connected to the inner rear wall of the test groove. A heating device and a cooling device are fixedly connected to the inner bottom wall, inner top wall and left and right inner walls of the test groove. A feeding component is rotatably connected to the upper surface of the positioning component.

[0007] The positioning component is used to reduce the contact area with the battery and improve the accuracy of battery detection data, while the feeding component is used to improve the efficiency of battery removal and feeding.

[0008] Preferably, the positioning component includes two first positioning frames and two second positioning frames, the left and right positions of the two first positioning frames and the two second positioning frames are corresponding, and the up and down positions of the first positioning frames and the second positioning frames are corresponding.

[0009] Preferably, the two first positioning frames and the two second positioning frames are threadedly connected to the opposite sides of each other with lateral adjusting screws, and the opposite ends of the two sets of lateral adjusting screws are rotatably connected to lateral pressing plates. The opposite sides of the two sets of lateral pressing plates are fixedly connected to two lateral limiting rods, and the opposite sides of the two first positioning frames and the two second positioning frames are provided with two circular through holes that are adapted to the lateral limiting rods.

[0010] Preferably, both the first positioning frame and the second positioning frame are threaded with vertical adjustment screws on their opposite sides. The opposite ends of the two sets of vertical adjustment screws are respectively fixedly connected with a first positive pressing plate and a second positive pressing plate. Both the first positive pressing plate and the second positive pressing plate are fixedly connected with two vertical limiting rods on their opposite sides. Both the first positioning frame and the second positioning frame have two circular holes that are adapted to the vertical limiting rods.

[0011] Preferably, the feeding assembly includes a plurality of rotating shafts, and feeding wheels are fixedly connected to the surface of the rotating shafts.

[0012] Preferably, the upper surfaces of the two second positive extrusion plates are provided with strip grooves, and the left and right inner walls of the strip grooves are provided with a number of rotating grooves. Every two left and right corresponding rotating grooves form a group, and the rotating shaft is rotatably connected to the inner wall of each group of rotating grooves.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By setting up the positioning components, the four corners of the battery can be locked by the side extrusion plate, the first positive extrusion plate and the second positive extrusion plate during use, thereby reducing the obstruction area on the battery surface, avoiding direct contact between the battery and the inner wall of the detection slot, increasing the contact area between high temperature and low temperature air and the battery, thereby improving the accuracy of the battery detection data.

[0015] 2. By designing the feeding assembly, the feeding wheel can contact the bottom of the battery during use, thereby reducing the friction generated by the feeding wheel during movement, making it easier to feed the battery into and out of the testing slot, and improving the efficiency of battery loading and unloading. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a high and low temperature test chamber for power battery testing proposed in this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the first positioning frame of a high and low temperature test chamber for power battery testing proposed in this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the feeding assembly of a high and low temperature test chamber for power battery testing proposed in this utility model.

[0019] In the diagram: 1. Box body; 2. Sealed door; 3. Heating device; 4. Cooling device; 5. First positioning frame; 6. Second positioning frame; 7. Lateral adjusting screw; 8. Lateral extrusion plate; 9. Lateral limiting rod; 10. Vertical adjusting screw; 11. First forward extrusion plate; 12. Second forward extrusion plate; 13. Vertical limiting rod; 14. Rotating shaft; 15. Feeding wheel; 16. Rotating groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1, referring to Figure 1 and Figure 2 A high and low temperature test chamber for testing power batteries includes a chamber body 1. A test groove is provided on the front of the chamber body 1. A sealing door 2 is rotatably connected to the front of the chamber body 1. A positioning component is fixedly connected to the inner rear wall of the test groove. A heating device 3 and a cooling device 4 are fixedly connected to the inner bottom wall, inner top wall and left and right inner walls of the test groove. A feeding component is rotatably connected to the upper surface of the positioning component.

[0022] The positioning component is used to reduce the contact area with the battery and improve the accuracy of battery detection data, while the feeding component is used to improve the efficiency of battery removal and feeding.

[0023] The positioning component includes two first positioning frames 5 and two second positioning frames 6. The left and right positions of the two first positioning frames 5 and the two second positioning frames 6 correspond to each other, and the up and down positions of the first positioning frames 5 and the second positioning frames 6 correspond to each other.

[0024] The back sides of the two first positioning frames 5 and the two second positioning frames 6 are threaded with lateral adjusting screws 7. The opposite ends of the two sets of lateral adjusting screws 7 are rotatably connected with lateral pressing plates 8. The back sides of the two sets of lateral pressing plates 8 are fixedly connected with two lateral limiting rods 9. The back sides of the two first positioning frames 5 and the two second positioning frames 6 are provided with two circular through holes that are adapted to the lateral limiting rods 9. Rotating the four lateral adjusting screws 7 can drive the two sets of lateral pressing plates 8 to move towards the opposite side, thereby pressing the left and right sides of the battery together. Due to the limiting effect of the lateral limiting rods 9, the lateral pressing plates 8 will not rotate, so the limiting effect on the battery will not be reduced and the stability will be higher.

[0025] Both the first positioning frame 5 and the second positioning frame 6 are threaded with vertical adjustment screws 10 on their opposite sides. The opposite ends of the two sets of vertical adjustment screws 10 are respectively fixedly connected to the first positive pressing plate 11 and the second positive pressing plate 12. Both the opposite sides of the first positive pressing plate 11 and the second positive pressing plate 12 are fixedly connected with two vertical limiting rods 13. Both the opposite sides of the first positioning frame 5 and the second positioning frame 6 are provided with two circular holes that are adapted to the vertical limiting rods 13. Rotating the vertical adjustment screws 10 can drive the first positive pressing plate 11 and the second positive pressing plate 12 to move towards their opposite sides, thereby pressing the upper and lower surfaces of the battery together. When used in conjunction with the side pressing plate 8, it can reduce the contact area between the battery and the inner wall of the test tank, thereby increasing the contact area between the high temperature and low temperature air and the battery, and thus improving the accuracy of the battery test data.

[0026] Example 2: Refer to Figure 1 and Figure 3 The feeding assembly includes several rotating shafts 14, with feeding wheels 15 fixedly connected to the surface of the rotating shafts 14. The upper surfaces of the two second positive extrusion plates 12 are provided with strip grooves, and the left and right inner walls of the strip grooves are provided with several rotating grooves 16. Each pair of left and right corresponding rotating grooves 16 forms a group. The rotating shafts 14 are rotatably connected to the inner walls of each group of rotating grooves 16. The battery can contact the surface of the feeding wheel 15, and the feeding wheel 15 can rotate through the rotating shafts 14, thereby reducing the friction between the battery and the second positive extrusion plate 12, facilitating the feeding and removal of the battery, and improving the loading and unloading efficiency.

[0027] Working principle: First, open the sealing door 2. Place the battery to be tested on the feeding rollers 15 on the two second positive extrusion plates 12, and push the battery backward to make it penetrate deep into the testing groove. At this time, rotate the four lateral adjusting screws 7 so that the four lateral extrusion plates 8 press the left and right sides of the battery together. Then, rotate the two upper vertical adjusting screws 10 so that the two upper first positive extrusion plates 11 move downward and press the upper surface of the battery together. After closing the sealing door 2, turn on the heating device 3. The heating device 3 heats the temperature inside the testing groove and performs a high-temperature test on the battery. After the high-temperature test is completed, wait for the temperature inside the testing groove to return to normal, and then turn on the cooling device 4 again. The temperature of the testing tank is lowered to conduct a low-temperature test on the battery. The four corners of the battery are locked by two sets of lateral extrusion plates 8 and two first forward extrusion plates 11 and second forward extrusion plates 12, which greatly reduces the contact area between the battery and the inner wall of the testing tank. This allows the high and low temperatures in the testing tank to contact a larger area of ​​the battery, further improving the accuracy of the battery testing data. After the test is completed, the lateral adjustment screw 7 and the vertical adjustment screw 10 are turned to move the lateral extrusion plates 8 and the first forward extrusion plates 11 away from the battery surface, and the battery can be extracted through the feeding wheel 15 and the rotating shaft 14, which improves the efficiency of battery feeding and makes it more practical.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high and low temperature test chamber for testing power batteries, comprising a chamber body (1), characterized in that, The front of the box (1) is provided with a detection groove, and a sealing door (2) is rotatably connected to the front of the box (1). A positioning component is fixedly connected to the inner rear wall of the detection groove. A heating device (3) and a cooling device (4) are fixedly connected to the inner bottom wall, inner top wall and left and right inner walls of the detection groove. A feeding component is rotatably connected to the upper surface of the positioning component. The positioning component is used to reduce the contact area with the battery and improve the accuracy of battery detection data, while the feeding component is used to improve the efficiency of battery removal and feeding.

2. The high and low temperature test chamber for power battery testing according to claim 1, characterized in that, The positioning component includes two first positioning frames (5) and two second positioning frames (6). The left and right positions of the two first positioning frames (5) and the two second positioning frames (6) correspond to each other, and the up and down positions of the first positioning frames (5) and the second positioning frames (6) correspond to each other.

3. The high and low temperature test chamber for power battery testing according to claim 2, characterized in that, The two first positioning frames (5) and the two second positioning frames (6) are threaded with lateral adjusting screws (7) on their opposite sides. The opposite ends of the two sets of lateral adjusting screws (7) are rotatably connected with lateral pressing plates (8). The opposite sides of the two sets of lateral pressing plates (8) are fixedly connected with two lateral limiting rods (9). The opposite sides of the two first positioning frames (5) and the two second positioning frames (6) are provided with two circular through holes that are adapted to the lateral limiting rods (9).

4. The high and low temperature test chamber for power battery testing according to claim 2, characterized in that, Both the first positioning frame (5) and the second positioning frame (6) are threaded with vertical adjustment screws (10). The opposite ends of the two sets of vertical adjustment screws (10) are respectively fixedly connected with a first positive extrusion plate (11) and a second positive extrusion plate (12). Both the opposite sides of the first positive extrusion plate (11) and the second positive extrusion plate (12) are fixedly connected with two vertical limiting rods (13). Both the opposite sides of the first positioning frame (5) and the second positioning frame (6) have two circular holes that are adapted to the vertical limiting rods (13).

5. A high and low temperature test chamber for power battery testing according to claim 1, characterized in that, The feeding assembly includes several rotating shafts (14), and feeding wheels (15) are fixedly connected to the surface of the rotating shafts (14).

6. A high and low temperature test chamber for testing power batteries according to claim 4, characterized in that, The upper surfaces of the two second positive extrusion plates (12) are provided with strip grooves, and the left and right inner walls of the strip grooves are provided with a number of rotating grooves (16). Each pair of left and right corresponding rotating grooves (16) form a group, and the rotating shaft (14) is rotatably connected to the inner wall of each group of rotating grooves (16).

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