Adiabatic temperature rise testing device

Abstract

The utility model belongs to the technical field of lithium ion battery detection equipment, and particularly relates to an adiabatic temperature rise testing device which comprises an adiabatic part, a fixing part and a high-temperature-resistant suspension part, the fixing part and the high-temperature-resistant suspension part are both arranged on the side face of the adiabatic part, are arranged on the same horizontal plane and are both separated from the bottommost part of the adiabatic part, and the fixing part and the high-temperature-resistant suspension part are arranged on the same horizontal plane. And a heat insulation space is formed. According to the adiabatic temperature rise testing device provided by the invention, the fixing piece and the high-temperature-resistant suspension piece are arranged on the same horizontal plane and are separated from the bottommost part of the adiabatic piece to form an adiabatic distance, and the lithium battery and the battery cell are placed on the high-temperature-resistant suspension piece and are separated from the furnace body, so that direct contact with the furnace body is avoided; therefore, the battery cells of different models and specifications can be conveniently and quickly located at the temperature difference base line in the furnace, direct heat conduction of the furnace body to the battery cells is reduced, the battery cells are heated by heat radiation as far as possible, and the condition of the heat insulation environment of the lithium ion battery is prevented from being damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium ion battery detection equipment, and in particular relates to an adiabatic temperature rise testing device. Background Art

[0002] Lithium-ion batteries have the characteristics of high energy density, and therefore have important application value in the field of electrochemical energy storage. However, due to the high energy density, the safety risk of lithium-ion batteries has also become a huge challenge. For customers, safety is always the first priority. In order to ensure the safety of lithium-ion batteries, corresponding safety certification tests are usually carried out on each different type of lithium-ion battery. Among them, the adiabatic temperature rise test is a very important test in the safety certification test of lithium-ion batteries. Lithium-ion batteries have obvious thermal effects during the charging and discharging process, including electrode reaction heat, polarization heat, Joule heat and side reaction heat, etc. These heats increase the internal temperature of the battery. Once the temperature is too high, it will affect the battery performance and life, and even cause thermal runaway of the battery. During the adiabatic temperature rise test, the battery cell is first placed in an adiabatic environment. The heat generated by the inside or absorbed from the outside increases the surface temperature of the battery cell. However, the adiabatic temperature rise test device in the prior art has the technical problem that the adiabatic environment conditions of the lithium-ion battery under test will be destroyed. Utility Model Content

[0003] The utility model aims to provide an adiabatic temperature rise test device, aiming to solve the technical problem that the adiabatic temperature rise test device in the prior art may destroy the conditions of the adiabatic environment of the lithium ion battery being tested.

[0004] To achieve the above-mentioned purpose, the thermal insulation temperature rise testing device provided by the embodiment of the utility model includes a thermal insulation part, a fixing part and a high temperature protection suspension part, wherein the thermal insulation part is provided in a plurality of pieces, the fixing part is provided on the thermal insulation part, the fixing parts are provided in a plurality of pieces, the fixing parts are cross-connected with each other and connected to the thermal insulation part, the high temperature protection suspension part is provided on the fixing part, the high temperature protection suspension parts are provided in a plurality of pieces and connected to the fixing part, the fixing part and the high temperature protection suspension part are both provided on the side of the thermal insulation part, the fixing part and the high temperature protection suspension part are provided on the same horizontal plane, and are both separated from the bottom of the thermal insulation part to form a thermal insulation distance.

[0005] As an optional solution of the utility model, four insulating parts are provided, each of which is arranged in parallel and opposite to each other. The insulating parts include an insulating screw and an insulating nut. The insulating nut is threadedly connected to the insulating screw, and the bottom end of the insulating screw is arranged in a conical shape.

[0006] As an optional solution of the utility model, two fixing parts are provided, and the fixing parts are fixing bars, and the material of the fixing bars is stainless steel. The two fixing bars are cross-arranged to form a rice shape, and the two fixing bars are fixedly connected to each other and are fixedly connected to the insulating nut.

[0007] As an optional solution of the present invention, each of the fixing bars is provided with a plurality of the positioning grooves, and the plurality of the positioning grooves are evenly distributed on the fixing bars.

[0008] As an optional solution of the present invention, a plurality of high temperature protection suspension parts are provided, and the high temperature protection suspension parts are high temperature protection suspension rings, and each of the high temperature protection suspension rings is fixedly installed in a positioning groove on the fixing bar.

[0009] As an optional solution of the utility model, multiple fixing strips and multiple high temperature protection suspension rings are arranged on the same horizontal plane, and are all separated from the bottom of the insulation component to form an insulation distance, and the size of the insulation distance is 10 to 30 cm.

[0010] The above one or more technical solutions in the adiabatic temperature rise test device provided by the embodiment of the utility model have at least one of the following technical effects:

[0011] The thermal insulation temperature rise test device provided in the present application includes a thermal insulation part, a fixing part and a high temperature protection suspension part. The fixing part and the high temperature protection suspension part are arranged on the same horizontal plane and are both separated from the bottom of the thermal insulation part to form a thermal insulation distance. The lithium battery and the battery cell are placed on the high temperature protection suspension part and separated from the furnace body to avoid direct contact with the furnace body, so that the battery cells of different models and specifications can be conveniently and quickly placed at the temperature difference baseline in the furnace, reducing the direct heat conduction of the furnace body to the battery cell, and the battery cell is heated by thermal radiation as much as possible, thereby avoiding the destruction of the thermal insulation environment conditions of the lithium-ion battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 A side view of the adiabatic temperature rise testing device provided in an embodiment of the utility model.

[0014] Figure 2 A top view of the adiabatic temperature rise testing device provided in an embodiment of the utility model.

[0015] Figure 3A schematic structural diagram of a fixing bar of an adiabatic temperature rise testing device provided in an embodiment of the utility model.

[0016] Among them, the reference numerals in the figure are:

[0017] 1. Insulation; 2. Fixing strip; 3. High temperature protection hanging ring;

[0018] 11. Insulation screw; 12. Insulation nut;

[0019] 21. Positioning groove. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0024] In one embodiment of the present invention, Figures 1 to 3As shown, a thermal insulation temperature rise test device is provided, including a thermal insulation member 1, a fixing member and a high temperature protection suspension member. Several thermal insulation members 1 are provided, and the fixing member is provided on the thermal insulation member 1. Several fixing members are provided, and the fixing members are cross-connected with each other and fixedly connected to the thermal insulation member 1. The high temperature protection suspension member is provided on the fixing member, and several high temperature protection suspension members are provided and fixedly connected to the fixing member. The fixing member and the high temperature protection suspension member are both provided on the side of the thermal insulation member 1, and the fixing member and the high temperature protection suspension member are provided on the same horizontal plane, and are both separated from the bottom of the thermal insulation member 1 to form a thermal insulation distance to avoid direct contact with the furnace body. In the thermal insulation temperature rise test device provided by the present application, the fixing parts and the high temperature protection suspension parts are arranged on the same horizontal plane, and are both separated from the bottom of the thermal insulation part 1 to form a thermal insulation distance. The lithium battery and the battery cell are placed on the high temperature protection suspension parts and separated from the furnace body to avoid direct contact with the furnace body, so that the battery cells of different models and specifications can be conveniently and quickly placed at the temperature difference baseline in the furnace, reducing the direct heat conduction of the furnace body to the battery cell, and the battery cell is heated by thermal radiation as much as possible, thereby avoiding the destruction of the thermal insulation environment conditions of the lithium-ion battery.

[0025] In another embodiment of the utility model, four insulating parts 1 are provided in the thermal insulation temperature rise testing device, and each insulating part 1 is arranged in parallel and opposite to each other. The insulating part 1 includes an insulating screw 11 and an insulating nut 12. The insulating nut 12 is threadedly connected to the insulating screw 11 and can move along the insulating screw 11. The bottom end of the insulating screw 11 is arranged in a cone shape, which reduces the contact area with the furnace body and reduces direct contact with the furnace body.

[0026] In another embodiment of the utility model, the thermal insulation temperature rise test device has two fixing parts, which are fixing bars 2, and the fixing bars 2 are made of stainless steel. The two fixing bars 2 are arranged crosswise to form a rice seed shape, and the two fixing bars 2 are fixedly connected to each other and are fixedly connected to the thermal insulation nut 12. The two fixing bars 2 are fixedly connected to the four thermal insulation screws 11 to form a stable support structure.

[0027] In another embodiment of the utility model, each fixing bar 2 of the thermal insulation temperature rise testing device is provided with a plurality of positioning grooves 21, and the plurality of positioning grooves 21 are evenly distributed on the fixing bar 2, and the positioning grooves 21 are used to fix the high temperature protection suspension parts.

[0028] In another embodiment of the utility model, the insulation temperature rise testing device is provided with multiple high temperature protection suspension parts, and the high temperature protection suspension parts are high temperature protection suspension rings 3, and each high temperature protection suspension ring 3 is fixedly installed in the positioning groove 21 on the fixing bar 2.

[0029] In another embodiment of the utility model, the multiple fixing bars 2 and the multiple anti-high temperature hanging rings 3 of the thermal insulation temperature rise test device are arranged on the same horizontal plane, and are all separated from the bottom of the thermal insulation member 1 to form an insulation distance, and the insulation distance is 10 to 30 cm, preferably 20 cm. The insulation distance is used to separate the lithium battery and the battery cell from the furnace body to avoid direct contact with the furnace body, reduce the direct heat conduction of the furnace body to the battery cell, and the battery cell is heated by thermal radiation as much as possible. Among them, the anti-high temperature hanging ring 3 can be adjusted in size according to the battery cells of different sizes, so that the anti-high temperature hanging ring 3 corresponds to the size of the battery cell.

[0030] In the thermal insulation temperature rise test device provided by the present application, the fixing parts and the high temperature protection suspension parts are arranged on the same horizontal plane, and are both separated from the bottom of the thermal insulation part 1 to form a thermal insulation distance. The lithium battery and the battery cell are placed on the high temperature protection suspension parts and separated from the furnace body to avoid direct contact with the furnace body, so that the battery cells of different models and specifications can be conveniently and quickly placed at the temperature difference baseline in the furnace, reducing the direct heat conduction of the furnace body to the battery cell, and the battery cell is heated by thermal radiation as much as possible, thereby avoiding the destruction of the thermal insulation environment conditions of the lithium-ion battery.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adiabatic temperature rise test device, characterized in that: It includes an insulating part, a fixing part and an anti-high temperature suspension part, wherein a plurality of the insulating parts are provided, the fixing parts are provided on the insulating part, a plurality of the fixing parts are provided, the fixing parts are cross-connected with each other and connected to the insulating part, the anti-high temperature suspension part is provided on the fixing part, a plurality of the anti-high temperature suspension parts are provided and connected to the fixing part, the fixing part and the anti-high temperature suspension part are both provided on the side of the insulating part, the fixing part and the anti-high temperature suspension part are provided on the same horizontal plane, and are both separated from the bottom of the insulating part to form an insulation distance.

2. The adiabatic temperature rise test device according to claim 1, characterized in that: There are four insulating parts, each of which is arranged in parallel and opposite to each other. The insulating parts include an insulating screw and an insulating nut. The insulating nut is threadedly connected to the insulating screw, and the bottom end of the insulating screw is arranged in a conical shape.

3. The adiabatic temperature rise testing device according to claim 2, characterized in that: There are two fixing members, which are fixing bars made of stainless steel. The two fixing bars are cross-arranged to form a rice shape. The two fixing bars are fixedly connected to each other and are fixedly connected to the insulation nuts.

4. The adiabatic temperature rise test device according to claim 3, characterized in that: Each of the fixing bars is provided with a plurality of positioning grooves, and the plurality of positioning grooves are evenly distributed on the fixing bars.

5. The adiabatic temperature rise testing device according to claim 4, characterized in that: There are multiple high temperature protection suspension parts, and each of the high temperature protection suspension parts is a high temperature protection suspension ring. Each of the high temperature protection suspension rings is fixedly installed in a positioning groove on the fixing bar.

6. The adiabatic temperature rise test device according to claim 5, characterized in that: The plurality of fixing strips and the plurality of high temperature protection suspension rings are arranged on the same horizontal plane, and are all separated from the bottom of the thermal insulation component to form a thermal insulation distance, and the thermal insulation distance is 10 to 30 cm.

Images