A temperature rise test device

Abstract

The present application provides a temperature rise test device, which relates to the technical field of battery performance test equipment. The temperature rise test device includes a shell, a base, a top cover and a temperature sensor; the shell has a cavity inside, and one end of the cavity has an opening; the base is arranged in the cavity in a liftable manner, and the base is used to carry the battery; the top cover is detachably arranged at one end of the shell with the opening, and the top cover can close the opening; a connector is provided on the side of the top cover away from the base, and the connector is used to electrically connect the battery; the temperature sensor is arranged in the cavity; the temperature sensor is used to measure the temperature of the battery; the shell, the top cover and the base enclose an insulating cavity. The temperature rise test device of the present application can be applied to the charging and discharging temperature rise test of batteries of different models.

Description

Technical Field

[0001] The present application relates to the technical field of battery performance testing equipment, and in particular to a temperature rise testing device. Background Art

[0002] Existing devices for testing the temperature rise of batteries during charging and discharging can usually only test specific models of batteries, resulting in low universality. If multiple models of batteries are to be tested, multiple testing devices need to be prepared, which in turn leads to high testing costs. Utility Model Content

[0003] In order to overcome the deficiencies in the prior art, the present application provides a temperature rise testing device.

[0004] This application provides the following technical solutions:

[0005] A temperature rise test device, comprising:

[0006] A shell, wherein the shell has a cavity inside, and one end of the cavity has an opening;

[0007] A base, the base is liftably disposed in the cavity, and the base is used to carry the battery;

[0008] A top cover, the top cover is detachably arranged at one end of the housing having the opening, and the top cover can close the opening; a connector is arranged on a side of the top cover away from the base, and the connector is used to electrically connect the battery;

[0009] A temperature sensor is disposed in the cavity; the temperature sensor is used to measure the temperature of the battery.

[0010] In a possible embodiment, the shell includes a first insulation layer, a second insulation layer and a bottom plate; one end of the first insulation layer and one end of the second insulation layer are both arranged on the bottom plate; the second insulation layer is sleeved outside the first insulation layer; the cavity is arranged in the first insulation layer; the base is slidably matched with a side of the first insulation layer away from the second insulation layer; the first insulation layer, the top cover and the base enclose the insulation cavity.

[0011] In a possible implementation, a first vacuum cavity is provided between the first thermal insulation layer and the second thermal insulation layer.

[0012] In a possible implementation manner, an axis of the first heat insulation layer and an axis of the second heat insulation layer are arranged collinearly.

[0013] In a possible implementation manner, the temperature rise test device further includes an adjusting member; a fixed end of the adjusting member is disposed on the bottom plate, and a lifting end of the adjusting member is connected to the base.

[0014] In a possible implementation manner, a second vacuum chamber is provided in the base.

[0015] In a possible implementation manner, a third vacuum chamber is provided in the top cover.

[0016] In a possible implementation manner, the temperature rise test device further includes a wire; the wire is disposed in the insulation cavity, one end of the wire is electrically connected to the connector, and the other end of the wire is used to connect to a pole of the battery.

[0017] In a possible implementation manner, the shell, the base and the top cover are all provided with a thermal insulation coating; the thermal conductivity of the thermal insulation coating is less than 0.05 W / (m·K).

[0018] In a possible implementation manner, the temperature rise testing device further includes a sealing member, and the top cover is sealedly connected to the end of the shell having the opening through the sealing member.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The temperature rise test device provided by the present application, when the top cover is arranged at one end of the shell with an opening, the shell, the top cover and the base can enclose a closed insulating cavity. The connector on the top cover can electrically connect the battery and the external power supply, so that the battery can be charged and discharged in the insulating cavity. The temperature sensor can measure the temperature of the battery during charging and discharging in the insulating cavity. The base can drive the battery to rise and fall in the cavity in the shell, thereby changing the volume of the insulating cavity, and thus making the temperature rise test device suitable for charging and discharging temperature rise tests of batteries of different models.

[0021] In order to make the above-mentioned objects, features and advantages of the present application more obvious and understandable, preferred embodiments are given below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of a temperature rise testing device according to an embodiment of the present application is shown.

[0024] Description of main component symbols:

[0025] 100-temperature rise test device; 110-housing; 111-first insulation layer; 112-second insulation layer; 113-bottom plate; 114-first vacuum chamber; 115-insulation chamber; 120-base; 121-second vacuum chamber; 130-top cover; 131-connector; 132-third vacuum chamber; 140-temperature sensor; 150-adjustment member; 160-wire;

[0026] 200-Battery. DETAILED DESCRIPTION

[0027] The embodiments of the present application 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 only used to explain the present application, and cannot be understood as limiting the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In this application, 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 this application can be understood according to specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] Example

[0033] See also Figure 1 In one embodiment of the present application, a temperature rise test device 100 is provided. The temperature rise test device 100 is used to measure the temperature change of a battery 200 during charging and discharging in a closed space.

[0034] The battery 200 in this embodiment may be a lithium ion battery or a sodium ion battery.

[0035] The temperature rise testing device 100 includes a housing 110 , a base 120 , a top cover 130 and a temperature sensor 140 .

[0036] The shell 110 has a cavity inside, one end of the cavity has an opening, and the base 120 is liftably disposed in the cavity.

[0037] The battery 200 can enter the cavity through the opening and then be placed on the base 120 , so that the base 120 supports the battery 200 .

[0038] The top cover 130 is detachably disposed at one end of the housing 110 having the opening. The top cover 130 can close the opening to make the cavity a closed space.

[0039] When the top cover 130 closes the opening, the housing 110 , the top cover 130 , and the base 120 can enclose a heat-insulating cavity 115 .

[0040] A connector 131 is provided on one side of the top cover 130 away from the base 120 . The connector 131 is used to electrically connect the battery 200 to an external power source so that the battery 200 can be charged and discharged in the sealed insulation cavity 115 .

[0041] The temperature sensor 140 can measure the temperature of the battery 200 during charging and discharging in the insulation chamber 115 .

[0042] The base 120 can drive the battery 200 to rise and fall in the cavity, thereby changing the volume of the insulation cavity 115 , thereby making the temperature rise test device 100 suitable for charge and discharge temperature rise tests of batteries 200 of different models.

[0043] In some embodiments, the shell 110 includes a first insulation layer 111, a second insulation layer 112 and a bottom plate 113; one end of the first insulation layer 111 and one end of the second insulation layer 112 are both arranged on the bottom plate 113; the second insulation layer 112 is sleeved outside the first insulation layer 111; the cavity is arranged in the first insulation layer 111; the base 120 is slidably matched with the side of the first insulation layer 111 away from the second insulation layer 112; the first insulation layer 111, the top cover 130 and the base 120 enclose the insulation cavity 115.

[0044] In some embodiments, the first heat insulating layer 111 and the second heat insulating layer 112 are both cylindrical structures, and one end of the first heat insulating layer 111 and one end of the second heat insulating layer 112 are both fixed on the bottom plate 113. However, it is not limited thereto, and it can be understood that in other embodiments, the first heat insulating layer 111 and the second heat insulating layer 112 can also be square structures according to actual needs.

[0045] Exemplarily, one end of the first heat insulating layer 111 and one end of the second heat insulating layer 112 are both fixed to the bottom plate 113 by welding.

[0046] In some embodiments, a first vacuum chamber 114 is provided between the first thermal insulation layer 111 and the second thermal insulation layer 112 .

[0047] The first vacuum chamber 114 can reduce the heat transfer between the first insulation layer 111 and the second insulation layer 112, thereby avoiding heat loss in the insulation chamber 115 and avoiding the influence of the external temperature on the temperature in the insulation chamber 115, thereby improving the accuracy of the measurement result of the temperature sensor 140.

[0048] In some embodiments, the axis of the first insulation layer 111 and the axis of the second insulation layer 112 are arranged collinearly to ensure that the first vacuum chamber 114 is evenly arranged between the first insulation layer 111 and the second insulation layer 112 .

[0049] In some embodiments, the temperature rise testing device 100 further includes an adjusting member 150 ; the adjusting member 150 is used to adjust the height of the base 120 in the cavity, thereby adjusting the volume of the insulation cavity 115 .

[0050] Specifically, the fixed end of the adjusting member 150 is disposed on the bottom plate 113 , and the lifting end of the adjusting member 150 is connected to the base 120 , and the lifting end of the adjusting member 150 can drive the base 120 to rise and fall in the cavity.

[0051] Exemplarily, the adjusting member 150 is a lifting rod, the fixed end of which is fixedly connected to the bottom plate 113, and the lifting end of the lifting rod has a connecting plate, which can abut against a side of the base 120 away from the top cover 130 to drive the base 120 to rise and fall.

[0052] The connecting plate can increase the contact area with the base 120 , thereby improving the stability of the base 120 when it is lifted or lowered.

[0053] In some embodiments, the shape of the base 120 matches the shape of the inner side of the first insulation layer 111 .

[0054] Exemplarily, when the first insulation layer 111 is cylindrical in shape, the base 120 is circular in shape, so that when the base 120 slides with the side of the first insulation layer 111 away from the second insulation layer 112, the insulation cavity 115 is ensured to be a closed space.

[0055] In some embodiments, a second vacuum chamber 121 is disposed inside the base 120. The second vacuum chamber 121 can effectively prevent the heat in the insulation chamber 115 from being transferred to the chamber where the adjustment member 150 is located through the base 120.

[0056] The shape of the second vacuum chamber 121 matches the shape of the base 120 .

[0057] Exemplarily, when the base 120 is circular in shape, the second vacuum chamber 121 is a circular cavity.

[0058] In some embodiments, a third vacuum chamber 132 is disposed inside the top cover 130. The third vacuum chamber 132 can effectively prevent the heat in the insulation chamber 115 from being transferred to the outside through the top cover 130.

[0059] The shape of the third vacuum chamber 132 matches the shape of the top cover 130 .

[0060] In some embodiments, the temperature rise test device 100 further includes a wire 160; the wire 160 is disposed in the insulation cavity 115, one end of the wire 160 is electrically connected to the connector 131, and the other end is used to connect to the pole of the battery 200. An external power source can be electrically connected to the battery 200 through the connector 131 and the wire 160, so that the battery 200 can be charged and discharged.

[0061] Specifically, the temperature rise test device 100 also includes a first wire and a second wire, and the top cover 130 is respectively provided with a first connector and a second connector, the first connector is connected to the positive electrode column of the battery 200 through the first wire, and the second connector is connected to the negative electrode column of the battery 200 through the second wire.

[0062] In some embodiments, the top cover 130 has a built-in wire inside, and the wire 160 is electrically connected to the connector 131 through the built-in wire.

[0063] When the temperature rise testing device 100 of this embodiment is working, the connecting member 131 can achieve electrical connection with the battery 200 through the wire 160 arranged in the insulating cavity 115, so there is no need to open a hole on the top cover 130 to pass the wire, which greatly improves the sealing performance of the insulating cavity 115.

[0064] The adjusting member 150 adjusts the height of the base 120 , thereby facilitating the wire 160 to connect to the battery 200 .

[0065] In some embodiments, the probe of the temperature sensor 140 is attached to the battery 200 when working, and the receiver of the temperature sensor 140 is arranged on the top cover 130. The probe of the temperature sensor 140 is electrically connected to the receiver of the temperature sensor 140 through wires. The probe of the temperature sensor 140 can convert the detected temperature data into an electrical signal, and then transmit it to the receiver of the temperature sensor 140, so that the staff can obtain the temperature of the battery 200 during charging and discharging.

[0066] In the temperature rise testing device 100 of the present embodiment, the temperature sensor 140 and the wire 160 matching the battery 200 can be replaced by replacing the top cover 130 .

[0067] In some embodiments, the temperature rise testing device 100 further includes a seal (not shown), and the top cover 130 is sealed to the end of the shell 110 having the opening through the seal to prevent the heat in the insulation cavity 115 from being transferred to the outside.

[0068] Exemplarily, the sealing member is a rubber ring, and the sealing member is sleeved on the outside of the top cover 130 so that the top cover 130 can be sealed and connected to the side of the first heat insulation layer 111 away from the second heat insulation layer 112 .

[0069] In some embodiments, the outer surface of the first insulation layer 111 , the outer surface of the second insulation layer 112 , the outer surface of the base 120 , and the outer surface of the top cover 130 are all provided with insulation coatings to prevent heat transfer in the insulation cavity 115 .

[0070] Furthermore, the thermal conductivity of the thermal insulation coating is less than 0.05 W / (m·K).

[0071] Exemplarily, the thermal insulation coating is a silicate coating or a ceramic coating.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0073] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A temperature rise test device, characterized in that: include: A shell, wherein the shell has a cavity inside, and one end of the cavity has an opening; A base, the base is liftably disposed in the cavity, and the base is used to carry the battery; A top cover, the top cover is detachably arranged at one end of the housing having the opening, and the top cover can close the opening; a connector is arranged on a side of the top cover away from the base, and the connector is used to electrically connect the battery; A temperature sensor is disposed in the cavity; the temperature sensor is used to measure the temperature of the battery; Wherein, the shell, the top cover and the base form an insulating cavity.

2. The temperature rise test device according to claim 1, characterized in that: The shell includes a first insulation layer, a second insulation layer and a bottom plate; one end of the first insulation layer and one end of the second insulation layer are both arranged on the bottom plate; the second insulation layer is sleeved outside the first insulation layer; the cavity is arranged in the first insulation layer; the base is slidably matched with a side of the first insulation layer away from the second insulation layer; the first insulation layer, the top cover and the base enclose the insulation cavity.

3. The temperature rise test device according to claim 2, characterized in that: A first vacuum chamber is provided between the first heat insulating layer and the second heat insulating layer.

4. The temperature rise test device according to claim 2, characterized in that: The axis of the first heat-insulating layer is collinearly arranged with the axis of the second heat-insulating layer.

5. The temperature rise test device according to claim 2, characterized in that: The temperature rise test device also includes an adjusting member; a fixed end of the adjusting member is arranged on the bottom plate, and a lifting end of the adjusting member is connected to the base.

6. The temperature rise test device according to any one of claims 1 to 5, characterized in that: A second vacuum chamber is arranged in the base.

7. The temperature rise test device according to any one of claims 1 to 5, characterized in that: A third vacuum chamber is arranged in the top cover.

8. The temperature rise test device according to any one of claims 1 to 5, characterized in that: The temperature rise test device also includes a wire; the wire is arranged in the insulation cavity, one end of the wire is electrically connected to the connector, and the other end is used to connect to the pole of the battery.

9. The temperature rise test device according to any one of claims 1 to 5, characterized in that: The shell, the base and the top cover are all provided with a heat-insulating coating; the thermal conductivity of the heat-insulating coating is less than 0.05 W / (m·K).

10. The temperature rise test device according to any one of claims 1 to 5, characterized in that: The temperature rise testing device further comprises a sealing member, through which the top cover is sealedly connected to the end of the shell having the opening.

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