Battery high and low temperature charging and discharging testing device

Abstract

The utility model discloses a battery high and low temperature charging and discharging test device, comprising a high temperature test cavity, two sides of which are provided with first slideways, a sliding plate is arranged in the high temperature test cavity, and two sides of the sliding plate are matched with the first slideways; the low-temperature test cavity is positioned below the high-temperature test cavity; second slideways are arranged on the two sides of the low-temperature testing cavity; the test plate is slidably arranged at the joint of the high-temperature test cavity and the low-temperature test cavity, and a plurality of test areas are arranged on the test plate; the two sides of the upper end of the high-temperature test cavity are provided with a pair of first limiting blocks, and the two ends of the joint of the high-temperature test cavity and the low-temperature test cavity are provided with a pair of second limiting blocks. According to the utility model, rapid switching in the high and low temperature test cavity is realized, an external mobile mechanism is not needed, a battery is moved out of the device from the opening and closing door of the high temperature test cavity, then is lowered to the outside of the low temperature test cavity through the lifting mechanism, and is moved in from the opening and closing door of the low temperature test cavity for low temperature test, thereby facilitating high and low temperature charge and discharge test of the battery; the problem of tedious operation in the prior art is solved, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery performance testing. More specifically, the utility model relates to a battery high and low temperature charge and discharge testing device. Background Art

[0002] With the popularization of new energy vehicles and the gradual increase of their market share, the development of batteries has become increasingly rapid. With the wide application of batteries, in practical applications, the requirements for the performance and safety of batteries are getting higher and higher. Therefore, it is particularly important to conduct charge and discharge tests on batteries. In the prior art, there are more and more related technologies for battery charge and discharge testing devices. For example, a patent with the application number 202322048392.6 discloses a battery charge and discharge testing device, which includes a housing. A plurality of symmetrically arranged left and right chutes are provided inside the housing. A plurality of sliders are slidably connected inside the housing. The outer walls of the sliders are all slidably connected in the chutes. A constant current test connection board is fixedly connected to the outer wall of the slider. A plurality of limit blocks are fixedly connected to the upper surface of the constant current test connection board. The battery body is slidably connected to the limit blocks. The battery is placed on the upper surface of the constant current test connection board and limited by the limit blocks. Then, an electric push rod is used to push a push plate to further fix the battery. However, it cannot achieve the high and low temperature charge and discharge performance testing of the battery. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a battery high and low temperature charge and discharge testing device with a simple structure. By providing a first slideway and a second slideway on both sides of the high temperature test chamber and the low temperature test chamber, when the battery is subjected to high and low temperature charge and discharge testing, it can be quickly switched inside the high and low temperature test chambers without an external moving mechanism. The battery is removed from the opening and closing door of the high temperature test chamber outside the device, and then lowered to the outside of the low temperature test chamber through a lifting mechanism, and then moved into the low temperature test chamber through the opening and closing door of the low temperature test chamber for low temperature testing, which facilitates the high and low temperature charge and discharge testing of the battery, solves the problem of cumbersome existing operations, and improves the testing efficiency.

[0004] In order to achieve the purpose and other advantages of the present utility model, there is provided a battery high and low temperature charge and discharge testing device, including:

[0005] A high temperature test chamber, with first slideways vertically arranged on both sides thereof. A sliding plate is arranged inside the high temperature test chamber, and both sides of the sliding plate are adapted to the first slideways;

[0006] A low temperature test chamber, located below the high temperature test chamber; second slideways are vertically arranged on both sides of the low temperature test chamber, and the second slideways are integrally arranged with the first slideways;

[0007] A test board, which is slidably arranged at the connection between the high temperature test chamber and the low temperature test chamber;

[0008] Wherein, a pair of first limiting blocks are movably arranged on both sides of the upper end of the high-temperature test chamber, and a pair of second limiting blocks are movably arranged at both ends of the connection between the high-temperature test chamber and the low-temperature test chamber. The pair of first limiting blocks are used to limit the sliding plate when the sliding plate slides to the upper end of the high-temperature test chamber, and the pair of second limiting blocks are used to limit the sliding plate or the test plate when the sliding plate or the test plate slides to the connection between the high-temperature test chamber and the low-temperature test chamber.

[0009] Preferably, the battery high and low temperature charge and discharge test device further includes:

[0010] A pair of first telescopic mechanisms, each first telescopic mechanism includes a first telescopic rod and a first driving motor. One end of the first telescopic rod is connected to the output end of the first driving motor, and the other end is connected to the first limiting block; and

[0011] A pair of second telescopic mechanisms, each second telescopic mechanism includes a second telescopic rod and a second driving motor. One end of the second telescopic rod is connected to the output end of the second driving motor, and the other end is connected to the second limiting block.

[0012] Preferably, the battery high and low temperature charge and discharge test device further includes:

[0013] A first sensor, which is configured at the top end of the high-temperature test chamber;

[0014] A second sensor, which is configured on the side wall at the connection between the high-temperature test chamber and the low-temperature test chamber and is located above a pair of second limiting blocks.

[0015] Preferably, the sliding plate includes: a first heat insulation layer and a second heat insulation layer, and there is a gap with a width of 1-2 cm between the first heat insulation layer and the second heat insulation layer.

[0016] Preferably, the battery high and low temperature charge and discharge test device further includes:

[0017] A first lifting mechanism, which is configured outside the top end of the high-temperature test chamber, and the telescopic unit of the first elevator passes through the top of the high-temperature test chamber and is connected to the sliding plate;

[0018] A second lifting structure, which is configured at the bottom of the low-temperature test chamber, and the telescopic member of the second lifting mechanism is connected to the test plate.

[0019] Preferably, a plurality of test grooves arranged in parallel are provided on the test plate.

[0020] Preferably, a pair of battery clamping members are arranged on opposite sides of each test groove.

[0021] The utility model has at least the following beneficial effects:

[0022] First, in the battery high and low temperature charge and discharge test device of the utility model, the first slideway and the second slideway are arranged on both sides of the high temperature test chamber and the low temperature test chamber, so that when the battery is subjected to high and low temperature charge and discharge tests, it can be quickly switched in the high and low temperature test chambers without an external moving mechanism. The battery is removed from the opening and closing door of the high temperature test chamber and out of the device, and then lowered to the outside of the low temperature test chamber through the lifting mechanism and moved into the low temperature test chamber through the opening and closing door of the low temperature test chamber, which facilitates the high and low temperature charge and discharge tests of the battery, solves the problem of cumbersome existing operations, and improves the test efficiency.

[0023] Second, in the battery high and low temperature charge and discharge test device of the utility model, a pair of first limit blocks and a pair of second limit blocks are arranged to limit the sliding plate and the test plate respectively, improving the fixing stability of the sliding plate and the test plate.

[0024] Third, in the battery high and low temperature charge and discharge test device of the utility model, a pair of first telescopic mechanisms and a pair of second telescopic mechanisms are used to control the expansion and contraction of a pair of first limit blocks and a pair of second limit blocks respectively. When extended, they limit and fix the sliding plate and the test plate, and when retracted, they are flush with the bottom surfaces of the first slideway and the second slideway, without affecting the sliding of the sliding plate and the test plate on the first slideway and the second slideway.

[0025] Fourth, in the battery high and low temperature charge and discharge test device of the utility model, a first inductor and a second inductor are arranged. When the sliding plate slides to the top of the high temperature test chamber, the first inductor obtains an induction signal and transmits it to the controller. The controller controls a pair of first telescopic mechanisms to extend a pair of first limit blocks to limit the sliding plate. The second inductor is located at the connection of the high and low temperature test chambers, senses the sliding plate or the test plate, obtains an induction signal and transmits it to the controller. The controller controls a pair of second telescopic mechanisms to extend a pair of second limit blocks to limit the sliding plate or the test plate.

[0026] Fifth, in the battery high and low temperature charge and discharge test device of the utility model, a first lifting mechanism and a second lifting mechanism are arranged to realize the lifting and sliding of the sliding plate and the test plate.

[0027] Sixth, in the battery high and low temperature charge and discharge test device of the utility model, a pair of battery clamping members are arranged on opposite sides of each test slot to prevent the battery from moving during the test and affecting the test results.

[0028] Other advantages, objectives and features of the utility model will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the utility model. Description of the Drawings

[0029] Figure 1 is a schematic structural view of a battery high and low temperature charge and discharge test device according to an embodiment of the present utility model;

[0030] Figure 2 is a schematic structural view of a first slideway and a second slideway in the battery high and low temperature charge and discharge test device according to an embodiment of the present utility model;

[0031] Figure 3 is a schematic structural view of a second telescopic mechanism in the battery high and low temperature charge and discharge test device according to an embodiment of the present utility model;

[0032] Figure 4 is a schematic structural view of a first lifting mechanism in the battery high and low temperature charge and discharge test device according to an embodiment of the present utility model;

[0033] Figure 5 is a schematic structural view of a second lifting mechanism in the battery high and low temperature charge and discharge test device according to an embodiment of the present utility model;

[0034] Figure 6 is a schematic structural view of a test board in the battery high and low temperature charge and discharge test device according to an embodiment of the present utility model;

[0035] Figure 7 is a schematic structural view of a sliding plate in the battery high and low temperature charge and discharge test device according to an embodiment of the present utility model;

[0036] Reference numerals: 1: high temperature test chamber, 2: first slideway, 3; sliding plate, 300: first heat insulation layer, 310: second heat insulation layer, 320: gap, 4: low temperature test chamber, 5: second slideway, 6: test board, 7: first limit block, 8: second limit block, 9: second telescopic mechanism, 900: second telescopic rod, 910: second driving motor, 10: first inductor, 11: second inductor, 12: first lifting mechanism, 13: second lifting mechanism, 14: test slot, 15: clamping member. Detailed implementation manners

[0037] The following further describes the present utility model in detail with reference to the drawings, so that those skilled in the art can implement it according to the description in the specification.

[0038] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0039] It should be noted that the control methods in the following implementation schemes are all conventional methods without special instructions, and the equipment structures can be obtained from commercial channels without special instructions.

[0040] Such as Figures 1 - 7 , the present utility model provides a battery high and low temperature charge and discharge test device, including:

[0041] A high temperature test chamber 1, on both sides of which there are vertically arranged first slideways 2, and a sliding plate 3 is arranged in the high temperature test chamber 1, and both sides of the sliding plate 3 are adapted to the first slideways 2;

[0042] A low temperature test chamber 4, which is located below the high temperature test chamber 1; on both sides of the low temperature test chamber 4 there are vertically arranged second slideways 5, and the second slideway 5 is integrally arranged with the first slideway 1;

[0043] A test board 6, which is slidably arranged at the connection between the high temperature test chamber 1 and the low temperature test chamber 4;

[0044] Wherein, a pair of first limit blocks 7 are movably arranged on both sides of the upper end of the high temperature test chamber 1, and a pair of second limit blocks 8 are movably arranged at both ends of the connection between the high temperature test chamber 1 and the low temperature test chamber 4. A pair of the first limit blocks 7 are used to limit the sliding plate 3 when the sliding plate 3 slides to the upper end of the high temperature test chamber 1, and a pair of the second limit blocks 8 are used to limit the sliding plate 3 or the test board 6 when the sliding plate 3 or the test board 6 slides to the connection between the high temperature test chamber 1 and the low temperature test chamber 4.

[0045] In this embodiment, when performing high-temperature charge and discharge tests on the battery, the sliding plate 3 is located at the top of the high-temperature test chamber 1, and a pair of first limit blocks 7 limit the sliding plate 3. The test plate 6 is located at the connection between the high-temperature test chamber 1 and the low-temperature test chamber 4, and a pair of second limit blocks 8 limit the test plate 6. At this time, the test area of the test plate 6 is located in the high-temperature test chamber 1, and high-temperature charge and discharge tests are performed on the battery on the test plate 6. A heating device is provided in the high-temperature test chamber 1 to heat the high-temperature test chamber 1 so that the ambient temperature in the high-temperature test chamber 1 meets the temperature requirements for high-temperature charge and discharge tests of the battery. A cooling device is provided in the low-temperature test chamber 4 to cool the low-temperature test chamber 4 so that the ambient temperature in the low-temperature test chamber 4 meets the temperature requirements for low-temperature charge and discharge tests of the battery. The heating device and the cooling device are both heating and cooling devices in the prior art and will not be elaborated here. When performing low-temperature charge and discharge tests on the battery, the sliding plate 3 slides down to the connection between the high-temperature test chamber 1 and the low-temperature test chamber 4, and a pair of second limit blocks 8 limit the sliding plate 6. The test plate 6 moves down to the bottom of the low-temperature test chamber 4. At this time, the test area of the test plate 6 is located in the low-temperature test chamber 4, and low-temperature charge and discharge tests are performed on the battery on the test plate 6. Among them, opening and closing doors are provided on the front surfaces of both the high-temperature test chamber 1 and the low-temperature test chamber 4 for placing the battery to be tested on the test plate 6 during testing. It can quickly switch between the high-temperature test chamber and the low-temperature test chamber without an external moving mechanism. The battery is removed from the opening and closing door of the high-temperature test chamber and then lowered to the outside of the low-temperature test chamber through a lifting mechanism and moved into the low-temperature test chamber through the opening and closing door for low-temperature testing, which facilitates high and low-temperature charge and discharge tests of the battery, solves the problem of cumbersome existing operations, and improves the efficiency of high and low-temperature charge and discharge tests of the battery.

[0046] In another embodiment, the battery high and low-temperature charge and discharge test device further includes:

[0047] A pair of first telescopic mechanisms, each first telescopic mechanism includes a first telescopic rod and a first driving motor. One end of the first telescopic rod is connected to the output end of the first driving motor, and the other end is connected to the first limit block 7; and

[0048] A pair of second telescopic mechanisms 9, each second telescopic mechanism 9 includes a second telescopic rod 900 and a second driving motor 910. One end of the second telescopic rod 900 is connected to the output end of the second driving motor 910, and the other end is connected to the second limit block 8.

[0049] In this embodiment, the structures of the first telescopic mechanism and the second telescopic mechanism are the same, as Figure 3As shown, taking the second telescopic mechanism 9 as an example, a pair of second telescopic mechanisms 9 are symmetrically arranged on both sides of the battery high and low temperature charge and discharge test device. Each second telescopic mechanism 9 includes a second telescopic rod 900 and a second driving motor 910. One end of the second telescopic rod 900 is connected to the output end of the second driving motor 910, and the other end is connected to the second limiting block 8. When it is necessary to limit the second limiting block 8, the second driving motor 910 drives the second telescopic rod 900 to extend into the cavity. When the limiting is completed and the sliding plate 3 or the test plate 6 slides, the second driving motor 910 drives the second telescopic rod 900 to retract into the cavity until the end of the second limiting block 8 away from the second telescopic rod 900 is flush with the bottom surfaces of the first slideway and the second slideway, without affecting the sliding of the sliding plate 3 and the test plate 6 on the first slideway 2 and the second slideway 5.

[0050] In another embodiment, the battery high and low temperature charge and discharge test device further includes:

[0051] A first inductor 10, which is configured at the top of the high temperature test chamber 1;

[0052] A second inductor 11, which is configured on the side wall at the connection of the high temperature test chamber 1 and the low temperature test chamber 4 and is located above a pair of second limiting blocks 8.

[0053] In this embodiment, the first inductor 10 and the second inductor 11 are distance sensors. The distance between the first inductor 10 and the first limiting block 7 is greater than the thickness of the sliding plate 3, and the distance between the second inductor 11 and the second limiting block 8 is greater than the thickness of the sliding plate 3. When performing a high temperature charge and discharge test on the battery, when the sliding plate 3 slides to the top of the high temperature test chamber and the distance from the first inductor 10 is 1 cm, the first inductor 10 obtains an induction signal and transmits it to the controller. The controller controls a pair of first telescopic mechanisms to extend a pair of first limiting blocks 7 to limit the sliding plate. At this time, when the test plate 6 slides to the connection of the high temperature test chamber 1 and the low temperature test chamber 4 and the distance from the second inductor 11 is 1 cm, the second inductor 11 obtains an induction signal and transmits it to the controller to control a pair of second telescopic mechanisms to extend a pair of second limiting blocks to limit the test plate 6. When performing a low temperature charge and discharge test on the battery, when the sliding plate 3 slides to the connection of the high temperature test chamber 1 and the low temperature test chamber 4 and the distance from the second inductor 11 is 1 cm, the second inductor 11 obtains an induction signal and transmits it to the controller to control a pair of second telescopic mechanisms to extend a pair of second limiting blocks to limit the sliding plate.

[0054] In another embodiment, the sliding plate 3 includes: a first heat insulation layer 300 and a second heat insulation layer 310, and there is a gap 320 with a width of 1 - 2 cm between the first heat insulation layer 300 and the second heat insulation layer 310.

[0055] In this embodiment, as Figure 7 shown, since the ambient temperature in the high-temperature test chamber 1 is different from the ambient temperature in the low-temperature test chamber 4, when performing low-temperature charge and discharge tests on the battery, the sliding plate 3 is located at the connection between the high-temperature test chamber 1 and the low-temperature test chamber 4. By making the sliding plate 3 into a heat-insulating structure, heat transfer between the high-temperature test chamber 1 and the low-temperature test chamber 4 is avoided. Among them, the materials of the first heat-insulating layer 300 and the second heat-insulating layer 310 are both made of conventional heat-insulating materials. For example, both the first heat-insulating layer 300 and the second heat-insulating layer 310 are polystyrene board heat-insulating materials.

[0056] In another embodiment, the battery high-low temperature charge and discharge test device further includes:

[0057] A first lifting mechanism 12, which is configured outside the top of the high-temperature test chamber 1, and the telescopic unit of the first elevator 12 passes through the top of the high-temperature test chamber 1 and is connected to the sliding plate 3;

[0058] A second lifting structure 13, which is configured at the bottom of the low-temperature test chamber 4, and the telescopic member of the second lifting mechanism 13 is connected to the test plate 6.

[0059] In this embodiment, as Figure 4 and 5 shown, the first lifting mechanism 12 is a small winch, which is connected to the sliding plate 3 by passing a steel wire rope through the top of the high-temperature test chamber 1. The sliding plate 3 is driven to slide on the first slideway 2 and the second slideway 5 by driving the steel wire rope to expand and contract through a motor; the second lifting mechanism 13 is a 3-section linkage lifting mechanism, which successively includes a basic arm, a first section arm and a second section arm from low to high. The first section arm is arranged inside the basic arm, and the second section arm is arranged inside the first section arm. A first slider is arranged between the basic arm and the first section arm, and a second slider is arranged between the first section arm and the second section arm. The end of the hydraulic cylinder is provided with a first pulley, and a first steel wire rope is wound around the first pulley. The two ends of the first steel wire rope are respectively connected to the inside of the basic arm and the second section arm. A second pulley is arranged on the first section arm, and a second steel wire rope is wound around the second pulley. The two ends of the second steel wire rope are respectively connected to the outside of the first slider and the second section arm. When raising, the second section arm extends under the drive of the hydraulic cylinder, and the first section arm extends synchronously with the second section arm under the drive of the second section arm through the first pulley and the first steel wire rope. When contracting, the second section arm contracts under the drive of the hydraulic cylinder, and the first section arm contracts synchronously with the first section arm under the drive of the second section arm through the second pulley and the second steel wire rope. The end of the second section arm is connected to the test plate 4, and the test plate 4 is driven to extend and contract by the extension and contraction of the second section arm.

[0060] In another embodiment, a plurality of test slots 14 arranged in parallel are provided on the test board 4. As Figure 6 shown, by arranging a plurality of test slots 14, it is possible to simultaneously test a plurality of batteries, improving the test efficiency of the batteries.

[0061] In another embodiment, a pair of battery clamping members 15 are provided on opposite sides of each test slot 14. As Figure 6 shown, by providing a pair of battery clamping members 15 on opposite sides of each test slot 14, the movement of the battery during the test is avoided, which affects the test results.

[0062] An optimal embodiment of the present utility model is:

[0063] A high and low temperature charge and discharge test device for batteries, comprising:

[0064] A high temperature test chamber 1, on both sides of which first slideways 2 are vertically provided. A sliding plate 3 is arranged in the high temperature test chamber 1, and both sides of the sliding plate 3 are adapted to the first slideways 2. Among them, the sliding plate 3 includes: a first heat preservation layer 300 and a second heat preservation layer 310, and there is a gap 320 with a width of 1 - 2 cm between the first heat preservation layer 300 and the second heat preservation layer 310;

[0065] A low temperature test chamber 4, which is located below the high temperature test chamber 1; second slideways 5 are vertically provided on both sides of the low temperature test chamber 4, and the second slideways 5 are integrally provided with the first slideways 1;

[0066] A test board 6, which is slidably arranged at the connection between the high temperature test chamber 1 and the low temperature test chamber 4; among them, a plurality of test slots 14 arranged in parallel are provided on the test board 4, and a pair of battery clamping members 15 are provided on opposite sides of each test slot 14;

[0067] Among them, a pair of first limit blocks 7 are movably arranged on both sides of the upper end of the high temperature test chamber 1, and a pair of second limit blocks 8 are movably arranged at both ends of the connection between the high temperature test chamber 1 and the low temperature test chamber 4. A pair of the first limit blocks 7 are used to limit the sliding plate 3 when the sliding plate 3 slides to the upper end of the high temperature test chamber 1, and a pair of the second limit blocks 8 are used to limit the sliding plate 3 or the test board 6 when the sliding plate 3 or the test board 6 slides to the connection between the high temperature test chamber 1 and the low temperature test chamber 4;

[0068] A pair of first telescopic mechanisms, each first telescopic mechanism includes a first telescopic rod and a first driving motor. One end of the first telescopic rod is connected to the output end of the first driving motor, and the other end is connected to the first limit block 7; and

[0069] A pair of second telescopic mechanisms 9, each second telescopic mechanism 9 includes a second telescopic rod 900 and a second driving motor 910, one end of the second telescopic rod 900 is connected to the output end of the second driving motor 910, and the other end is connected to the second limiting block 8;

[0070] A first inductor 10, which is configured at the top of the high-temperature test chamber 1;

[0071] A second inductor 11, which is configured on the side wall at the connection of the high-temperature test chamber 1 and the low-temperature test chamber 4 and is located above a pair of second limiting blocks 8;

[0072] A first lifting mechanism 12, which is configured outside the top of the high-temperature test chamber 1, and the telescopic unit of the first elevator 12 passes through the top of the high-temperature test chamber 1 and is connected to the sliding plate 3;

[0073] A second lifting structure 13, which is configured at the bottom of the low-temperature test chamber 4, and the telescopic member of the second lifting mechanism 13 is connected to the test plate 6.

[0074] The working principle of the battery high and low temperature charge and discharge test device in this best embodiment is as follows:

[0075] When the battery is subjected to high-temperature charge and discharge testing, the sliding plate 3 is stretched to the top of the high-temperature test chamber 1 through the first lifting mechanism 13. The first inductor 10 obtains an induction signal and transmits it to the controller. The controller controls a pair of first telescopic mechanisms to extend a pair of first limiting blocks 7 to limit the sliding plate 3. The test plate 6 is located at the connection of the high-temperature test chamber 1 and the low-temperature test chamber 4 through the elongation of the second lifting mechanism. The second inductor 11 obtains an induction signal and transmits it to the controller. The controller controls a pair of second telescopic mechanisms 9 to extend a pair of second limiting blocks 8 to limit the test plate 6. At this time, the test area of the test plate 6 is located in the high-temperature test chamber 1. The heating device in the high-temperature test chamber 1 heats the high-temperature test chamber 1 so that its ambient temperature meets the temperature of the battery high-temperature charge and discharge test, and performs high-temperature charge and discharge testing on the battery on the test plate 6;

[0076] When the battery is subjected to low-temperature charge and discharge testing, the controller controls a pair of first telescopic mechanisms to retract a pair of first limit blocks 7, and controls a pair of second telescopic mechanisms 9 to retract a pair of second limit blocks 8. The first lifting mechanism 12 drives the sliding plate 3 to slide to the connection between the high-temperature test chamber 1 and the low-temperature test chamber 4. The second inductor 11 obtains an induction signal and transmits it to the controller. The controller controls a pair of second telescopic mechanisms 9 to extend a pair of second limit blocks 8 to limit the sliding plate 3. The second lifting mechanism 13 contracts to drive the test plate 6 to contract to the lowest position. The refrigeration device in the low-temperature test chamber 4 cools the low-temperature test chamber 4 so that its ambient temperature meets the temperature for the low-temperature charge and discharge testing of the battery, and the battery on the test plate 6 is subjected to low-temperature charge and discharge testing.

[0077] The battery high and low temperature charge and discharge testing device of the present utility model is provided with a first slideway and a second slideway on both sides of the high-temperature test chamber and the low-temperature test chamber, so as to realize rapid switching in the high and low temperature test chambers when the battery is subjected to high and low temperature charge and discharge testing. Without an external moving mechanism, the battery is removed from the opening and closing door of the high-temperature test chamber outside the device, and then lowered to the outside of the low-temperature test chamber through the lifting mechanism, and moved into the low-temperature test chamber through the opening and closing door of the low-temperature test chamber for low-temperature testing, which facilitates the high and low temperature charge and discharge testing of the battery, solves the problem of cumbersome existing operations, and improves the testing efficiency.

[0078] Although the embodiments of the present utility model have been disclosed as above, it is not limited to only the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present utility model. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present utility model is not limited to the specific details and the illustrated and described examples here.

Claims

1. Battery high and low temperature charge and discharge test device, characterized in that: include: A high temperature test chamber, with first slideways vertically arranged on both sides thereof, a sliding plate arranged in the high temperature test chamber, and both sides of the sliding plate being adapted to the first slideways; A low temperature test chamber, which is located below the high temperature test chamber; second slideways are vertically arranged on both sides of the low temperature test chamber, and the second slideway is integrally arranged with the first slideway; A test plate, which is slidably disposed at the connection between the high temperature test cavity and the low temperature test cavity; Among them, a pair of first limit blocks are movably arranged on both sides of the upper end of the high-temperature test cavity, and a pair of second limit blocks are movably arranged on both ends of the connection between the high-temperature test cavity and the low-temperature test cavity. The pair of first limit blocks are used to limit the sliding plate when the sliding plate slides to the upper end of the high-temperature test cavity, and the pair of second limit blocks are used to limit the sliding plate or the test plate when the sliding plate or the test plate slides to the connection between the high-temperature test cavity and the low-temperature test cavity.

2. The battery high and low temperature charge and discharge test device according to claim 1, characterized in that: Also includes: A pair of first telescopic mechanisms, each of which comprises a first telescopic rod and a first drive motor, one end of the first telescopic rod is connected to the output end of the first drive motor, and the other end is connected to the first limit block; as well as A pair of second telescopic mechanisms, each of which includes a second telescopic rod and a second drive motor, one end of the second telescopic rod is connected to the output end of the second drive motor, and the other end is connected to the second limit block.

3. The battery high and low temperature charge and discharge test device according to claim 1, characterized in that: Also includes: A first sensor, which is arranged at the top of the high temperature test chamber; The second sensor is arranged on the side wall of the connection between the high temperature test chamber and the low temperature test chamber and is located on the upper part of a pair of second limiting blocks.

4. The battery high and low temperature charge and discharge test device according to claim 1, characterized in that: The sliding plate comprises: a first heat-insulating layer and a second heat-insulating layer, and a gap with a width of 1 to 2 cm is provided between the first heat-insulating layer and the second heat-insulating layer.

5. The battery high and low temperature charge and discharge test device according to claim 1, characterized in that: Also includes: A first lifting mechanism, which is arranged outside the top of the high temperature test chamber, and a telescopic unit of the first lifting mechanism passes through the top of the high temperature test chamber and is connected to the sliding plate; The second lifting structure is arranged at the bottom of the low temperature test chamber, and the telescopic member of the second lifting mechanism is connected to the test plate.

6. The battery high and low temperature charge and discharge test device according to claim 1, characterized in that: The test board is provided with a plurality of test slots arranged in parallel.

7. The battery high and low temperature charge and discharge test device according to claim 6, characterized in that: A pair of battery clamping components are arranged on opposite sides of each test slot.

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