Charging and discharging test cabinet and charging and discharging test system for battery cell

Abstract

The utility model provides a charge and discharge test cabinet and a charge and discharge test system for a battery cell, the charge and discharge test cabinet comprises a cabinet body, a support plate, a horizontal detector and a control module, the cabinet body is provided with an accommodating cavity and a first wire passing hole communicated with the accommodating cavity, a first interface, used for charging and discharging a wire, of the first wire passing hole extends into the accommodating cavity and is electrically connected with a second interface of the battery cell; the supporting plate is movably arranged in the accommodating cavity, and at least the supporting plate is used for bearing the battery cell; the horizontal detector is arranged on the supporting plate so as to detect and display the state of the supporting plate in real time; the control module is in signal connection with the horizontal detector, and the control module controls the supporting plate to move relative to the cabinet body according to detection information, obtained by the horizontal detector, of the supporting plate in the non-horizontal state so that the supporting plate can be in the horizontal state. The charging and discharging test system solves the problem that a charging and discharging test system in the prior art cannot ensure that a battery cell is always in a horizontal state.

Description

Technical Field

[0001] This utility model relates to the field of battery performance testing technology, and more specifically, to a charge-discharge test cabinet and a charge-discharge test system for battery cells. Background Technology

[0002] The charging and discharging test of battery cells is crucial for battery performance evaluation, capacity management, and power system design. If the battery cell is connected to the charging and discharging line under non-horizontal conditions, poor contact between the battery cell interface and the charging and discharging line interface is likely to occur due to the non-horizontal placement of the battery cell, which seriously affects the accuracy of the charging and discharging equipment in charging and discharging the battery cell. Utility Model Content

[0003] The main purpose of this invention is to provide a charge and discharge test cabinet and a charge and discharge test system for battery cells, so as to solve the problem that the existing charge and discharge test systems cannot guarantee that the battery cells are always in a horizontal state.

[0004] To achieve the above objectives, according to one aspect of the present invention, a charge / discharge test cabinet for battery cells is provided, comprising a cabinet body, a support plate, a level detector, and a control module. The cabinet body has a receiving cavity and a first wire-passing hole communicating with the receiving cavity. The first wire-passing hole allows a first interface of a charge / discharge cable to extend into the receiving cavity and electrically connect to a second interface of the battery cell. The support plate is movably disposed within the receiving cavity, and at least serves to support the battery cell. The level detector is disposed on the support plate to detect and display the state of the support plate in real time. The control module is signal-connected to the level detector, and based on the detection information obtained by the level detector indicating that the support plate is not horizontal, the control module controls the support plate to move relative to the cabinet body to bring it into a horizontal state.

[0005] In an exemplary embodiment, the cavity wall has a guide groove, and both sides of the support plate have electrically controlled pulleys. The support plate is slidably connected to the cabinet body through the cooperation of the electrically controlled pulleys and the guide groove. The control module is controlled and connected to each electrically controlled pulley on both sides, so that the control module controls the movement of the corresponding electrically controlled pulley according to the detection information.

[0006] In an exemplary embodiment, the charge and discharge test cabinet further includes a cabinet door, which is movably disposed at the opening of the receiving cavity to close and open the receiving cavity. A first wire-passing hole is formed on the cavity wall surface opposite to the opening of the receiving cavity, and there are at least two first wire-passing holes, which are respectively located on both sides of the support plate in the height direction.

[0007] In one exemplary embodiment, the first wire hole and the guide groove are located on different cavity wall surfaces of the receiving cavity.

[0008] In an exemplary embodiment, there are multiple support plates, which are spaced apart in a vertical direction, and each support plate is equipped with a level detector; at least one of the multiple support plates is used to support the battery cell, and at least one of the remaining support plates is used to support redundant charging and discharging lines; wherein, at least one of the support plates used to support the charging and discharging lines is provided with a second wire passage hole, which is used for the first interface to pass through and be electrically connected to the second interface.

[0009] In one exemplary embodiment, the diameter of the second wire hole is smaller than the diameter of the first wire hole.

[0010] In one exemplary embodiment, there are multiple second wire-passing holes, which are evenly distributed on the support plate.

[0011] In one exemplary embodiment, at least one weighing module is provided on the support plate for carrying the charging and discharging lines. The weighing module is used to obtain the weight of the charging and discharging lines on the support plate in real time. The weighing module is connected to an electronically controlled pulley so that the weighing module adjusts the interval between the support plate carrying the charging and discharging lines and the support plate carrying the battery cells according to the weight information of the charging and discharging lines.

[0012] In one exemplary embodiment, the leveling instrument is located at the edge of the support plate facing the opening of the receiving cavity.

[0013] According to another aspect of the present invention, a charge-discharge test system is provided, including a charge-discharge test cabinet, wherein the charge-discharge test cabinet is the charge-discharge test cabinet described above.

[0014] The present invention provides a charge / discharge test cabinet for battery cells, comprising a cabinet body, a support plate, a level detector, and a control module. The cabinet body has a receiving cavity and a first wire-passing hole communicating with the receiving cavity. The first wire-passing hole allows a first interface of a charge / discharge cable to extend into the receiving cavity and electrically connect to a second interface of the battery cell. The support plate is movably disposed within the receiving cavity, and at least serves to support the battery cell. The level detector is disposed on the support plate to detect and display the status of the support plate in real time. The control module is signal-connected to the level detector, and based on the detection information obtained by the level detector indicating that the support plate is not horizontal, the control module controls the support plate to move relative to the cabinet body to achieve a horizontal state.

[0015] By configuring the charge / discharge test cabinet into a structure including the cabinet body, support plate, level detector, and control module, the level detector can detect in real time whether the support plate is horizontal. When the support plate is not horizontal, the control module controls the support plate to move relative to the cabinet body to make it horizontal based on the detection information obtained by the level detector. This ensures that the support plate is always horizontal, thereby ensuring that the battery cells located on the support plate are always horizontal, thus ensuring the reliability of the electrical connection between the first and second interfaces, and further ensuring the accuracy of the charge / discharge system's performance testing of the battery cells. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the internal structure of a charge-discharge test cabinet according to an optional embodiment of the present invention is shown;

[0018] Figure 2 It shows Figure 1 The schematic diagram shows the structure of the charge / discharge test cabinet with two support plates.

[0019] The above figures include the following reference numerals:

[0020] 10. Cabinet body; 11. Receiving cavity; 12. First cable pass hole;

[0021] 20. Support plate; 21. Second wire hole; 30. Level detector; 40. Electrically controlled pulley; 50. Cabinet door. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] To address the problem that existing charge-discharge testing systems cannot guarantee that battery cells are always in a horizontal position, this invention provides a charge-discharge testing cabinet and a charge-discharge testing system for battery cells. The charge-discharge testing system includes a charge-discharge testing cabinet, which is the charge-discharge testing cabinet described above and below.

[0024] like Figure 1 and Figure 2 As shown, a charge / discharge test cabinet for battery cells includes a cabinet body 10, a support plate 20, a level detector 30, and a control module. The cabinet body 10 has a receiving cavity 11 and a first wire passage hole 12 communicating with the receiving cavity 11. The first wire passage hole 12 is used for the first interface of the charge / discharge wire to extend into the receiving cavity 11 and electrically connect to the second interface of the battery cell. The support plate 20 is movably disposed within the receiving cavity 11, and at least the support plate 20 is used to support the battery cell. The level detector 30 is disposed on the support plate 20 to detect and display the status of the support plate 20 in real time. The control module is signal-connected to the level detector 30. Based on the detection information obtained by the level detector 30 that the support plate 20 is in a non-level state, the control module controls the support plate 20 to move relative to the cabinet body 10 to make it level.

[0025] By configuring the charge / discharge test cabinet into a structure including the cabinet body 10, support plate 20, level detector 30, and control module, the level detector 30 can detect in real time whether the support plate 20 is in a horizontal state. When the support plate 20 is not in a horizontal state, the control module controls the support plate 20 to move relative to the cabinet body 10 to make it horizontal, based on the detection information obtained by the level detector 30 that the support plate 20 is not in a horizontal state. This ensures that the support plate 20 is always in a horizontal state, thereby ensuring that the battery cells located on the support plate 20 are always in a horizontal state. This, in turn, ensures the reliability of the electrical connection between the first interface and the second interface, and further ensures the accuracy of the charge / discharge system's performance testing of the battery cells.

[0026] like Figure 2 As shown, the cavity wall of the receiving cavity 11 has guide grooves, and both sides of the support plate 20 have electrically controlled pulleys 40. The support plate 20 is slidably connected to the cabinet body 10 through the cooperation of the electrically controlled pulleys 40 and the guide grooves. The control module is connected to each of the electrically controlled pulleys 40 on both sides, so that the control module controls the movement of the corresponding electrically controlled pulleys 40 according to the detection information. In this way, the cooperation between the electrically controlled pulleys 40 and the guide grooves can adjust the placement posture of the support plate 20, thereby ensuring that the support plate 20 can always be in a horizontal state.

[0027] like Figure 1As shown, the charge / discharge test cabinet also includes a cabinet door 50, which is movably disposed at the opening of the receiving cavity 11 to close and open the receiving cavity 11. A first wire-passing hole 12 is formed on the cavity wall of the receiving cavity 11 opposite to its opening, and there are at least two first wire-passing holes 12, located on opposite sides of the support plate 20 in the height direction. Thus, the cabinet door 50 protects the battery cells inside the receiving cavity 11, ensuring the reliability and accuracy of the charge / discharge test system.

[0028] like Figure 1 As shown, the first wire-passing hole 12 and the guide groove are located on different cavity walls of the receiving cavity 11. In this way, by placing the first wire-passing hole 12 and the guide groove on different cavity walls of the receiving cavity 11, the sliding reliability of the support plate 20 is ensured, while preventing the support plate 20 from interfering with the charging and discharging lines at the first wire-passing hole 12 during the attitude adjustment process.

[0029] It should be noted that in this application, there are multiple support plates 20, which are arranged at intervals along the vertical direction, and each support plate 20 is equipped with a level detector 30. At least one of the multiple support plates 20 is used to support the battery cell, and at least one of the remaining support plates 20 is used to support redundant charging and discharging lines. The support plate 20 used to support the charging and discharging lines has a second wire-passing hole 21, which allows the first interface to pass through and electrically connect to the second interface. This ensures that one support plate 20 can provide support for the battery cell, and another support plate 20 can provide support for the redundant charging and discharging lines, preventing poor connection between the first and second interfaces due to the weight of the charging and discharging lines.

[0030] like Figure 2 As shown, there are two support plates 20 and two first wire-passing holes 12. The two first wire-passing holes 12 are respectively located near the bottom plate and top plate of the cabinet body 10. When the upper support plate 20 of the two support plates 20 is used to support redundant charging and discharging lines, the first interface of the charging and discharging line passes through the upper first wire-passing hole 12 of the two first wire-passing holes 12 and enters the receiving cavity 11, and places the redundant charging and discharging line on the upper support plate 20. The lower support plate 20 of the two support plates 20 is used to support the battery cell. The first interface of the charging and discharging line passes through the second wire-passing hole on the lower support plate 20 and is plugged into the second interface of the battery cell.

[0031] Of course, there are two support plates 20 and two first wire passage holes 12. The two first wire passage holes 12 are respectively set close to the bottom plate and top plate of the cabinet body 10. When the lower support plate 20 of the two support plates 20 is used to carry redundant charging and discharging lines, the first interface of the charging and discharging line passes through the lower first wire passage hole 12 of the two first wire passage holes 12 and enters the receiving cavity 11, and places the redundant charging and discharging line on the lower support plate 20. The upper support plate 20 of the two support plates 20 is used to carry the battery cell. The first interface of the charging and discharging line passes through the second wire passage hole on the upper support plate 20 and is plugged into the second interface of the battery cell.

[0032] It should be noted that, in this application, considering that only the first interface of the wire end of the charging / discharging line located in the receiving cavity 11 is used to pass through the second wire-passing hole 21, preferably, the diameter of the second wire-passing hole 21 is smaller than the diameter of the first wire-passing hole 12. This ensures the overall structural strength of the support plate 20 and prevents a reduction in the overall structural strength of the support plate 20 due to the large second wire-passing hole 21 on the support plate 20.

[0033] like Figure 1 As shown, there are multiple second wire-passing holes 21, which are evenly distributed on the support plate 20. In this way, the first interface of the charging and discharging wire is adapted to the position of the second interface of the battery cell, passing through the nearest second wire-passing hole 21 and being plugged into the second interface.

[0034] It should be noted that, in one embodiment of this application (not shown), at least the support plate 20 for carrying the charging and discharging lines is also provided with a weighing module. The weighing module is used to obtain the weight of the charging and discharging lines on the support plate 20 in real time. The weighing module is controlled and connected to the electronically controlled pulley 40 so that the weighing module adjusts the interval distance between the support plate 20 carrying the charging and discharging lines and the support plate 20 carrying the battery cells according to the weight information of the charging and discharging lines. In this way, when the weight of the charging and discharging lines carried on the support plate 20 is heavy, meaning that there is a lot of redundancy in the charging and discharging lines, the interval distance between the two support plates 20 can be adjusted through the cooperation between the weighing module and the electronically controlled pulley 40.

[0035] like Figure 1 and Figure 2 As shown, the level detector 30 is located at the edge of the support plate 20 facing the cavity opening of the receiving cavity 11. This ensures that the detection information of the level detector 30 can be observed by the operator in real time. When the equipment cannot automatically adjust the posture of the support plate 20, the posture of the support plate 20 can also be manually adjusted to ensure that the support plate 20 is always in a level state.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0038] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0039] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0040] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A charge-discharge test cabinet for a battery cell, characterized by, The application relates to a charging and discharging test cabinet. The cabinet body (10) has a containing cavity (11) and a first wire-through hole (12) communicating with the containing cavity (11), the first wire-through hole (12) is used for the first interface of a charging and discharging wire to extend into the containing cavity (11) and electrically connect with the second interface of an electric core; The support plate (20) is movably arranged in the containing cavity (11), and at least the support plate (20) is used for bearing the electric core; The level detector (30) is arranged on the support plate (20) to detect and display the state of the support plate (20) in real time; The control module is signal-connected with the level detector (30), and the control module controls the support plate (20) to move relative to the cabinet body (10) to make the support plate (20) in a horizontal state according to the detection information that the support plate (20) is in a non-horizontal state obtained by the level detector (30).

2. The charging and discharging test cabinet according to claim 1, wherein The cavity wall surface of the containing cavity (11) is provided with a guide sliding groove, and the two sides of the support plate (20) are provided with electric control pulleys (40), the support plate (20) is slidably connected with the cabinet body (10) through the cooperation of the electric control pulleys (40) and the guide sliding groove; The control module is control-connected with each electric control pulley (40) on the two sides, so that the control module controls the corresponding electric control pulley (40) to move according to the detection information.

3. The charge and discharge test cabinet according to claim 2, characterized in that, The charging and discharging test cabinet further comprises: The cabinet door (50) is movably arranged at the cavity opening of the containing cavity (11) to close and open the containing cavity (11), the first wire-through hole (12) is arranged on the cavity wall surface opposite to the cavity opening of the containing cavity (11), and the first wire-through hole (12) is at least two, and the two first wire-through holes (12) are located on the two sides of the height direction of the support plate (20).

4. The charge and discharge test cabinet according to claim 3, characterized in that, The first wire-through hole (12) and the guide sliding groove are located on different cavity wall surfaces of the containing cavity (11).

5. The charging and discharging test cabinet according to claim 2, wherein The support plate (20) is a plurality of support plates (20) arranged in a vertical direction, and the level detector (30) is arranged on each support plate (20); At least one of the plurality of support plates (20) is used for bearing the electric core, and at least one of the remaining support plates (20) is used for bearing a redundant charging and discharging wire; At least the support plate (20) used for bearing the charging and discharging wire is provided with a second wire-through hole (21), and the second wire-through hole (21) is used for the first interface to pass through and electrically connect with the second interface.

6. The charge and discharge test cabinet according to claim 5, characterized in that, The aperture of the second wire-through hole (21) is smaller than the aperture of the first wire-through hole (12).

7. The charge and discharge test cabinet according to claim 5, characterized in that, The second wire-through hole (21) is a plurality of second wire-through holes (21) distributed on the support plate (20).

8. The charge and discharge test cabinet according to claim 5, characterized in that, a weighing module is further arranged on the support plate (20) for bearing the charge and discharge line, and the weighing module is used for acquiring the weight of the charge and discharge line on the support plate (20) in real time; the weighing module is in control connection with the electric control pulley (40), so that the weighing module adjusts the interval distance between the support plate (20) bearing the charge and discharge line and the support plate (20) bearing the battery cell according to the weight information of the charge and discharge line.

9. The charge and discharge test cabinet according to any one of claims 1 to 8, characterized in that, The level detector (30) is located at the edge of the side of the support plate (20) facing the cavity opening of the accommodating cavity (11).

10. A charge-discharge test system characterized by comprising: The application further provides a charge and discharge test cabinet, which is the charge and discharge test cabinet according to any one of claims 1 to 9.

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