BAC

Abstract

The present application relates to the technical field of battery production equipment, and in particular to a tank. The tank comprises a tank body, a negative pressure assembly, and a control valve. A negative pressure assembly is installed on the tank body, the negative pressure assembly having a first port and a second port connected thereto, the first port being connected to a liquid injection port. The control valve is provided on the tank body and is connected to the second port. The control valve is configured to connect a negative pressure source and can control the second port to connect to or disconnect from the negative pressure source.

Description

Title of the invention: BAC Technical field

[0001] The present application relates to the field of battery production equipment, and in particular a container. STATE OF THE ART

[0002] In the battery production process, the battery forming process is a very important step in the battery manufacturing process, and it is also one of the key steps to ensure the quality of the battery. During the battery forming process, the various materials and components inside the battery can reach a more stable and uniform state, avoiding unnecessary safety problems. Meanwhile, the capacity, cycle life and performance stability of the battery can be improved.

[0003] In the prior art, before the formation process is carried out, the negative pressure assembly is connected to the liquid injection port of the battery so that the confluence chamber of the negative pressure assembly is connected to the containment chamber of the battery. Meanwhile, one end of the negative pressure assembly configured to connect to the negative pressure source is inserted with a plug, so that the confluence chamber and the containment chamber are relatively closed. For the formation process to be carried out, the plug should be removed first, and then the negative pressure assembly is connected to the negative pressure source. However, during the process of inserting and removing the plug, impurities inevitably enter the confluence tube, resulting in the contamination of the containment chamber of the battery.

[0004] SUMMARY

[0005] The present application relates to a tray which can prevent impurities from entering the containment chamber of the battery via the confluence chamber.

[0006] In order to achieve the above objective, the present application relates to a container for transporting a battery, the battery having a liquid injection port and a containment chamber connected to each other, the container comprising: a container body; a negative pressure assembly, the negative pressure assembly being installed on the tank body, the negative pressure assembly having a first port and a second port connected to each other, the first port being connected to the liquid injection port; and a control valve, the control valve being provided on the bin body and being connected to the second port, the control valve being configured to connect a negative pressure source and configured to control the second port to connect to or disconnect from the negative pressure source.

[0007] Optionally, the first port comprises a plurality of first ports, the negative pressure assembly further comprises a confluence chamber, the plurality of first ports and second ports are all connected to the confluence chamber.

[0008] Optionally, the control valve is provided with a first interface, a second interface and a third interface, the first interface is configured to connect the air source, the second interface is configured to connect the negative pressure source, and the third interface is connected to the second port; in a case where the air source is ventilated to the first interface, the second interface is connected to the third interface, so that the second port is connected to the negative pressure source, the negative pressure source applying suction so that the confluence chamber and the containment chamber form a negative pressure space; in a case where the air source stops ventilating to the first interface, the second interface and the third interface are disconnected, so that the second port is disconnected from the negative pressure source.

[0009] Optionally, the tray further comprises a transparent pipe, the third interface and the second port being connected by the transparent pipe.

[0010] Optionally, a positioning member is also provided, and the positioning member is connected to the bin body and the control valve to limit the relative position of the control valve and the bin body.

[0011] Optionally, the tray body is provided with an insertion hole; the positioning member comprises a main body, a first positioning part and a second positioning part, the first positioning part and the second positioning part both being arranged on the main body, the first positioning part being configured to plug into the insertion hole, the second positioning part being configured to plug into the first interface and / or the second interface.

[0012] Optionally, the second positioning portion comprises two second positioning portions, one of the second positioning portions being configured to plug into the first interface, and the other of the second positioning portions being configured to plug into the second interface.

[0013] Optionally, the two second positioning portions are spaced apart along the first direction; the first positioning portion comprises at least two first positioning portions, the at least two first positioning portions being spaced apart along the first direction, and the first positioning portion and the second positioning portion being offset from each other in the second direction, the first direction and the second direction being perpendicular to each other.

[0014] Optionally, the first positioning portion and the second positioning portion extend along a third direction, the third direction being perpendicular to the first direction and perpendicular to the second direction.

[0015] Optionally, one end of the first positioning portion away from the main body is provided with a first guide bevel, the first guide bevel gradually approaching the axis of the first positioning portion along a direction away from the main body, and being configured to guide the insertion of the first positioning portion into the insertion hole; one end of the second positioning part away from the main body is provided with a second guide bevel, the second guide bevel gradually approaching the axis of the second positioning part along a direction away from the main body, and being configured to guide the plugging of the second positioning part into the first interface and / or the second interface.

[0016] Optionally, a stopper portion is provided on the outer circumferential surface of the second positioning portion, the stopper portion protruding from the second positioning portion along a radial direction of the second positioning portion, and the stopper portion being configured to abut against the control valve in a case where the second positioning portion is plugged into the first interface and / or the second interface.

[0017] Optionally, the negative pressure assembly comprises: a confluence tube, the confluence tube being provided with a confluence chamber, and the second port being provided on the confluence tube; and a receiving member, the receiving member having a receiving chamber, the first port being provided on the receiving member and communicating with the receiving chamber, the receiving chamber being connected to the confluence tube such that the confluence chamber, the receiving chamber, and the containment chamber are connected to each other.

[0018] Compared to the prior art, the beneficial effect of the present application is based on the following:

[0019] With regard to the container provided by the present application, in a case where the control valve controls the second port to disconnect from the negative pressure source, the confluence chamber of the negative pressure assembly and the battery containment chamber form a closed space, such that external impurities cannot enter the containment chamber from the second port through the confluence chamber of the negative pressure assembly, to prevent contamination of the battery containment chamber by impurities, thereby avoiding reducing the performance of the battery and shortening the service life of the battery. Brief description of the drawings

[0020] In order to describe technical solutions in embodiments of this application more clearly, the following briefly introduces the accompanying drawings for describing the embodiments. It is clear that the accompanying drawings in the following descriptions only represent some embodiments of this application, and a person skilled in the art can still deduce other drawings from these accompanying drawings without creative efforts.

[0021] [Fig. 1] is a side view of the tray provided by one embodiment of the present application.

[0022] [Fig.2] is a top view of the tray provided by one embodiment of the present application.

[0023] [Fig. 3] is a front view of the tray provided by one embodiment of the present application.

[0024] [Fig.4] is a front view of the positioning element provided by an embodiment of the present application.

[0025] [Fig.5] is a side view of the positioning element provided by an embodiment of the present application.

[0026] Description of the main symbols of Annex 1-bac; 11-bin body; 111-insertion hole; 12-negative pressure assembly; 121-confluence chamber; 122-first port; 123-second port; 124-confluence tube; 125-receiving element; 1251-receiving chamber; 13-control valve; 131-first interface; 132-second interface; 133-third interface; 14-positioning element; 141-main body; 142-first positioning part; 143-second positioning part; 1441-first guide bevel; 1442-second guide bevel; 145-stop part; 2-battery; 21-liquid injection port; 22-containment chamber. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely in the following in association with the accompanying drawings in the embodiments of the present application, and it is clear that the described embodiments are only a part of the embodiments of the present application and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without performing creative work are within the scope of protection of this application.

[0028] In the present application, the terms "install", "arrange", "provided", "connect" and "communicate" are to be understood in a broad sense. For example, it may be a fixed connection, a removable connection or a one-piece structure; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection via an intermediate means, or an internal connection between two devices, elements or assemblies. For the person of ordinary skill in the art, the specific meanings of the above terms in this application may be understood according to the specific circumstances.

[0029] Furthermore, the terms "first", "second", etc. are primarily used to distinguish between different devices or components (the particular types and structures may be the same or different), and are not used to indicate or imply the devices and components indicated or the relative importance and number of components. Unless otherwise indicated, "a plurality of" means at least two.

[0030] The technical solution of the present application will be described further with reference to specific embodiments and drawings.

[0031] Refer to [Fig.l] and [Fig.2] together. The embodiment of the present application describes a container 1 for transporting a battery 2. The battery 2 has a liquid injection port 21 and a containment chamber 22 connected to each other. The container 1 comprises a container body 11, a negative pressure assembly 12 and a control valve 13. The negative pressure assembly 12 is installed on the container body 11, the negative pressure assembly 12 has a first port 122 and a second port 123 connected to each other, the first port 122 being connected to the liquid injection port 21. The control valve 13 is provided on the container body 11 and is connected to the second port 123. The control valve 13 is configured to connect a source negative pressure (not shown in the figure) and configured to control the second port 123 to connect to or disconnect from the negative pressure source.

[0032] The tray body 11 is provided with a restricted space, and the battery 2 is placed in the restricted space, so that the tray body 11 carries the battery 2.

[0033] In a case where the control valve 13 controls the second port 123 to be communicated with the negative pressure source, the negative pressure source can temporarily apply suction, so that the airtightness of the negative pressure assembly 12 and the containment chamber 22 of the battery 2 can be tested to determine whether the negative pressure assembly 12, so as to prevent the containment chamber 22 of the battery 2 from being contaminated by impurities, thereby avoiding reducing the performance of the battery 2 and shortening the service life of the battery 2.

[0034] In a case where the control valve 13 controls the second port 123 to communicate with the negative pressure source, the negative pressure source may temporarily apply suction, so that the airtightness of the negative pressure assembly 12 and the containment chamber 22 of the battery 2 may be tested to determine whether the negative pressure assembly 12 and the chamber 22 are airtight.

[0035] After determining that the negative pressure assembly 12 and the containment chamber 22 of the battery 2 form a sealed space, the formation process can be implemented. Meanwhile, the negative pressure source continues to apply suction, and a portion of the electrolyte stored in the containment chamber 22 of the battery 2 can be pumped into the negative pressure assembly 12, so as to avoid an overreaction caused by excess electrolyte during the formation process, thereby causing degradation of the performance of the battery 2.At the same time, the negative pressure source continues to apply suction, and the gas generated during the formation process can also be pumped into the negative pressure assembly 12 to prevent the gas from affecting the formation suitability of the battery 2, and thus affecting the performance of the battery 2, and at the same time, it can also prevent the pressure increase in the containment chamber 22 causing expansion of the battery 2, thereby causing deterioration of the battery 2 or even resulting in an explosion.

[0036] It should be noted that the first orifice 122 and the second orifice 123 are not on the same plane. For example, in this embodiment, the direction of the first orifice 122 and the direction of the second orifice 123 are perpendicular to each other.

[0037] Refer to [Fig.l] and [Fig.2], in some embodiments, the first port 122 has a plurality of first ports 122, and the negative pressure assembly 12 also has a confluence chamber 121, the plurality of first ports 122 and the second port 123 all being connected to the confluence chamber 121.

[0038] The tray body 11 may carry a plurality of batteries 2, and the negative pressure assembly 12 may be provided with a plurality of first ports 122. The number of the first ports 122 corresponds to the number of the batteries 2, and each first port 122 is connected to a corresponding liquid injection port 21 of the battery 2, respectively, so as to carry out the process of forming a plurality of batteries 2 at the same time, which can improve the efficiency of forming the batteries 2.

[0039] In a case where the control valve 13 controls the disconnection of the second port 123 from the negative pressure source, the confluence chamber 121 and the containment chamber 22 of the battery 2 form a closed space, such that external impurities cannot enter the containment chamber 22 of the battery 2 through the second port 123 via the confluence chamber 121, so as to prevent the contamination of the containment chamber 22 of the battery 2 by impurities, thereby avoiding reducing the performance of the battery 2 and shortening the service life of the battery 2.

[0040] In a case where the control valve 13 controls the second port 123 to communicate with the negative pressure source, the negative pressure source may temporarily apply suction, so that the airtightness of the confluence chamber 121 and the containment chamber 22 of the battery 2 may be tested to determine whether the confluence chamber 121 is airtight with the containment chamber 22.

[0041] After determining that the confluence chamber 121 and the containment chamber 22 of the battery 2 form a sealed space, the formation process can be carried out. Meanwhile, the negative pressure source continues to apply suction, and a portion of the electrolyte stored in the containment chamber 22 of the battery 2 can be pumped into the confluence chamber 121, so as to avoid an excessive reaction caused by excess electrolyte during the formation process, thereby causing degradation of the performance of the battery 2. At the same time, the negative pressure source continues to apply suction, and the gas generated during the formation process can also be pumped into the confluence chamber 121 to prevent the gas from affecting the adequacy of the formation of the battery 2, and thus affecting the performance of the battery 2, and at the same time, it can also prevent the increase in pressure in the containment chamber 22 causing an expansion of the battery 2, thus leading to deterioration of the battery 2 or even resulting in an explosion.

[0042] In other embodiments, there may also be only one first orifice 122.

[0043] Referring to [Fig.l] and [Fig.3] together, in some embodiments, the control valve 13 is provided with a first interface 131, a second interface 132, and a third interface 133. The first interface 131 is configured to connect an air source (not shown in the figure), the second interface 132 is configured to connect a negative pressure source (not shown in the figure), and the third interface 133 is connected to the second port 123.In a case where the air source is ventilated to the first interface 131, the second interface 132 is connected to the third interface 133, so that the second port 123 is connected to the negative pressure source, the negative pressure source applying suction so that the confluence chamber and the containment chamber form a negative pressure space; in a case where the air source stops ventilating to the first interface 131, the second interface 132 and the third interface 133 are disconnected, so that the second port 123 is disconnected from the negative pressure source.

[0044] In this embodiment, the control valve 13 is a pneumatic valve. The first interface 131 and the second interface 132 may be disposed on a side surface remote from the confluence tube 124, and the third interface 133 may be disposed on a side surface facing the confluence tube 124.

[0045] In a case where the air source does not ventilate to the first interface 131, the second interface 132 and the third interface 133 are disconnected. As a result, the second port 123 is disconnected from the negative pressure source, so that the confluence chamber 121 of the negative pressure assembly 12 and the containment chamber 22 of the battery 2 form a sealed space. In a case where the air source is vented to the first interface 131, the second interface 132 is connected to the third interface 133, as a result, the second port 123 is connected to the negative pressure source, so that the negative pressure source can apply suction, so as to perform an airtightness test on the sealed space formed by the confluence chamber 121 and the containment chamber 22 of the battery 2 to determine whether the confluence chamber 121 is airtight with the containment chamber 22.

[0046] In other embodiments, the control valve 13 may also be a solenoid valve, i.e., the connection or disconnection of the second interface 132 and the third interface 133 can be controlled by electromagnetism. Of course, the control valve 13 can also be other types of valves, and the second interface 132 and the third interface 133 can be connected or disconnected in other ways, which are not limited here.

[0047] In certain more particular embodiments, the tank 1 further comprises a transparent pipe (not shown in the figures), the third interface 133 and the second orifice 123 being connected by the transparent pipe.

[0048] The third interface 133 and the second port 123 may be connected by a transparent pipe (not shown in the figures), on the one hand, the flow of the electrolyte in the battery 2 can be observed while the second interface 132 is connected to the third interface 133 and the negative pressure source applies suction, in order to preliminarily determine whether the pumping of the negative pressure is normal or not; on the other hand, the transparent pipe is generally made from a flexible material, and thus the ends of the transparent pipe are flexible when installing on the third interface 133 and installing the second port 123, that is, capable of compensating for an installation error between the third interface 133 and the second port 123, so as not to impact the connection between the third interface 133 and the second port 123.

[0049] In some more specific embodiments, the third interface 133 and the second port 123 may also be connected via the transparent pipe.

[0050] Referring to [Fig.4], in some more specific embodiments, the bin 1 further comprises a positioning member 14, the positioning member 14 being connected to the bin body 11 and the control valve 13 to limit the relative position of the control valve 13 and the bin body 11.

[0051] It is understood that when the control valve 13 is mounted on the tank body 11, due to installation errors, etc., the control valve 13 may move relative to the tank body 11. Therefore, after calibrating the position of the tank body 11 relative to the negative pressure source and the air source, the position of the control valve 13 relative to the negative pressure source and the air source will move, resulting in misalignment between the first interface 131 and the air source and the second interface 132 and the negative pressure source.To solve this problem, in this embodiment, the positioning member 14 serves to calibrate the relative position of the control valve 13 and the tank body 11, so that after calibrating the relative position of the tank body 11 and the negative pressure source and the air source, displacement of the position of the control valve 13 relative to the negative pressure source and the air source can be prevented. In this way, misalignment between the . first interface 131 and the air source and the second interface 132 and the negative pressure source can be avoided.

[0052] In other more specific embodiments, the positioning element 14 may also be provided on the control valve 13 and configured to connect the negative pressure source and the air source to directly calibrate the relative position of the control valve 13 and the negative pressure source and the air source.

[0053] Referring to [Fig.3], [Fig.4] and [Fig.5] together, in some embodiments, the tray body 11 is provided with an insertion hole 111. The positioning member 14 comprises a main body 141, a first positioning portion 142 and a second positioning portion 143, the first positioning portion 142 and the second positioning portion 143 both being provided on the main body 141, the first positioning portion 142 being configured to plug into the insertion hole 111, the second positioning portion 143 being configured to plug into the first interface 131 and / or the second interface 132.

[0054] Here, the main body 141 may be a plate-shaped structure or other types of structures, which are not limited herein.

[0055] For example, the first positioning part 142 is plugged into the insertion hole 111, and the second positioning part 143 is plugged into the first interface 131. Since the first positioning part 142 and the second positioning part 143 are arranged at relatively fixed positions on the main body 141, the relative position of the bin body 11 and the control valve 13 can be calibrated.

[0056] For example, the first positioning part 142 is plugged into the insertion hole 111, and the second positioning part 143 is plugged into the second interface 132. Since the first positioning part 142 and the second positioning part 143 are arranged at relatively fixed positions on the main body 141, the relative position of the bin body 11 and the control valve 13 can be calibrated.

[0057] For example, the first positioning part 142 is plugged into the insertion hole 111, and the second positioning part 143 is plugged into the first interface 131 and the second interface 132 at the same time, thereby increasing the strength of the connection between the positioning member 14 and the control valve 13, so as to reduce the difficulty in calibrating the relative positions of the tray body 11 and the control valve 13.

[0058] It should be noted that, in this embodiment, the second positioning part 143 is plugged into the first interface 131 and / or the second interface 132 of detachably. Particularly, before the forming process is carried out, i.e., before the first interface 131 is connected to the air source and the second interface 132 is connected to the negative pressure source, the first positioning part 142 is plugged into the insertion hole 111, and the second positioning part 143 is plugged into the first interface 131 and / or the second interface 132 to adjust the relative position of the control valve 13 and the tank body 11. After adjusting the relative position of the control valve 13 and the tank body 11, the second positioning part 143 is separated from the first interface 131 and / or the second interface 132, and then the first interface 131 is connected to the air source and the second interface 132 is connected to the negative pressure source.The second positioning part 143 is plugged into the first interface 131 and / or the second interface 132 in a detachable manner, the relative positions between the first interface 131, the second interface 132 and the tray body 11 can be adjusted directly, thereby reducing the impact of processing errors.

[0059] In other embodiments, the tray body 11 may be provided with a plug-in hole for inserting the second positioning portion 143.

[0060] Refer to [Fig.4] again. In some more specific embodiments, the second positioning portions 143 are two in number, one second positioning portion 143 being configured to plug into the first interface 131 and the other second positioning portion 143 being configured to plug into the second interface 132.

[0061] For example, the first positioning part 142 is plugged into the insertion hole 111, one of the second positioning parts 143 is plugged into the first interface 131, the other of the second positioning parts 143 is plugged into the second interface 132, thereby improving the strength of the connection between the positioning member 14 and the control valve 13, so as to reduce the difficulty of calibrating the relative positions of the tray body 11 and the control valve 13.

[0062] In other particular embodiments, there may be only a first positioning portion 142, and the first positioning portion 142 is plugged into the first interface 131 or the second interface 132.

[0063] Refer to [Fig. 4], in some more specific embodiments, the two second positioning portions 143 are spaced apart along the first direction (the X direction in [Fig. 4]). The first positioning portions 142 are at least two in number, the at least two first positioning portions 142 are spaced apart along the first direction, and the first positioning portion 142 and the second positioning portion 143 are offset. relative to each other in the second direction (the Y direction in [Fig.4]), the first direction and the second direction being perpendicular to each other.

[0064] In this embodiment, the first direction is parallel to the width direction of the tray body 11, and the second direction is parallel to the height direction of the tray body 11.

[0065] It is understood that, the two second positioning portions 143 are spaced apart along the first direction, at least two first positioning portions 142 are spaced apart along the first direction, so that the strength of the connection along the first direction between the positioning member 14 and the bin body 11 as well as between the positioning member 14 and the control valve 13 can be improved, so that the effect of the positioning member 14 on the calibration of the bin body 11 and the control valve 13 in the first direction is improved.

[0066] Also, the two second positioning portions 143 and at least two first positioning portions 142 are spaced apart along the first direction, so that the strength of the connection along the second direction between the positioning member 14 and the bin body 11 as well as between the positioning member 14 and the control valve 13 can be improved, so that the effect of the positioning member 14 on the calibration of the bin body 11 and the control valve 13 in the second direction is improved.

[0067] Furthermore, each first positioning portion 142 and each second positioning portion 143 are offset relative to each other in the second direction, which improves the stability of the positioning member 14 inserted into the bin body 11 and the control valve 13, and at the same time improves the calibration accuracy.

[0068] In other more specific embodiments, an acute angle may be formed between the first direction and the second direction.

[0069] Refer to [Fig. 5], in some more specific embodiments, the first positioning portion 142 and the second positioning portion 143 both extend along the third direction (the Z direction in [Fig. 5]), the third direction being perpendicular to the first direction and perpendicular to the second direction.

[0070] In this embodiment, the third direction is parallel to the longitudinal direction of the tray body 11.

[0071] The first positioning portion 142 and the second positioning portion 143 extend in the third direction, which can reduce the difficulty of plugging the first positioning portion 142 into the insertion hole 111 as well as plugging the second positioning part 143 into the first interface 131 and / or the second interface 132.

[0072] In other more specific embodiments, the third direction is inclined relative to the first direction and the second direction.

[0073] Refer to [Fig.5]. In some more specific embodiments, one end of the first positioning portion 142 away from the main body 141 is provided with a first guide bevel 1441, the first guide bevel 1441 gradually approaching the axis of the first positioning portion 142 along a direction away from the main body 141, and being configured to guide the first positioning portion 142 to plug into the insertion hole 111; one end of the second positioning portion 143 away from the main body is provided with a second guide bevel 1442, the second guide bevel 1422 gradually approaching the axis of the second positioning portion 143 along a direction away from the main body 141, and being configured to guide the second positioning portion 143 to plug into the first interface 131 and / or the second interface 132.

[0074] Here, the radial dimension of the first positioning part 142 must correspond to the dimension of the insertion hole 111 to ensure that after the first positioning part 142 is plugged into the insertion hole 111, no gap is created between the first positioning part 142 and the insertion hole 111. Particularly, the radial dimension of the first positioning part 142 is equal to or greater than the dimension of the insertion hole 111, so that a transition fit or an interference fit is formed between the first positioning part 142 and the insertion hole 111.Likewise, the radial dimension of the second positioning part 143 must correspond to the dimension of the first interface 131 and the second interface 132 to ensure that after the second positioning part 143 is inserted into the first interface 131 and the second interface 132, there is no gap between the two positioning parts 143 and the first interface 131 as well as between the second positioning part 143 and the second interface 132. Only if there is no gap between the first positioning part 142 and the insertion hole 111, and if there is no gap between the second positioning part 143 and the first interface 131 as well as between the second positioning part 143 and the second interface 132 can it be ensured that the positioning element 14 calibrates the relative position between the tray body 11 and the control valve 13. .

[0075] It is understood that, since the radial dimension of the first positioning portion 142 corresponds to the dimension of the insertion hole 111, when the first positioning portion 142 is inserted into the insertion hole 111, it It is necessary to ensure that the central axis of the first positioning portion 142 is aligned with the dimension of the insertion hole 111. When the central axis of the insertion hole 111 is substantially the same as the central axis of the first positioning portion 142, the first positioning portion 142 can be aligned with the insertion hole 111 and inserted smoothly. If the first positioning portion 142 moves relative to the insertion hole 111, an end of the first positioning portion 142 away from the main body 141 interferes with the edge of the insertion hole 111, which affects smooth insertion.In order to solve this problem, one end of the first positioning portion 142 away from the main body 141 is provided with a first guide bevel 1441, so that the radial dimension of the first positioning portion 142 at the first guide bevel 1441 gradually increases from the end of the first positioning portion 142 away from the main body 141 toward the main body 141 along the axial direction of the first positioning portion 142. Even if the first positioning portion 142 moves relative to the insertion hole 111, when inserting the first positioning portion 142 into the insertion hole 111, the first guide bevel 1441 abuts against the edge of the insertion hole 111 to guide the insertion of the first positioning portion 142 into the insertion hole 111.In this way, the first positioning part 142 can be inserted more efficiently into the insertion hole 111.

[0076] Similarly, the end of the second positioning portion 143 remote from the main body 141 is provided with a second guide bevel 1442 to serve as a guide when the second positioning portion 143 is plugged into the first interface 131 and / or the second interface 132, thereby improving the efficiency of inserting the second positioning portion 143 into the first interface 131 and the second interface 132, which will not be described again here.

[0077] In other more specific embodiments, guide bevels may also be provided at the insertion port 111, the first interface 131 and the second interface 132.

[0078] Refer to [Fig.5], in some more specific embodiments, a stopper portion 145 is provided on the outer circumferential surface of the second positioning portion 143, the stopper portion 145 protruding from the second positioning portion 143 along a radial direction of the second positioning portion 143, and the stopper portion 145 being configured to abut against the control valve 13 in a case where the second positioning portion 143 plugs into the first interface 131 and / or the second interface 132.

[0079] When the second positioning part 143 is plugged into the first interface 131 and / or the second interface 132, the abutment part 145 of the second positioning part 143 abuts against the control valve 13, which can limit the length of the second positioning part 143 inserted into the first interface 131 and / or the second interface 132. It is possible to prevent the length of the second positioning part 143 inserted into the first interface 131 and / or the second interface 132 from being too long or too short, and thus the adjustment by the positioning member 14 of the relative position of the tray body 11 and the control valve 13 would not be affected.

[0080] In other more specific embodiments, the stop portion 145 may be arranged on the internal walls of the first interface 131 and the second interface 132.

[0081] Refer to [Fig.l] again. In some embodiments, the negative pressure assembly 12 comprises a confluence tube 124 and a receiving member 125. The confluence tube is provided with a confluence chamber 121, and the second port 123 is provided on the confluence tube 124. The receiving member 125 has a receiving chamber 1251, the first port 122 is provided on the receiving member 125 and communicates with the receiving chamber 1251, the receiving member 125 is connected to the confluence tube 124 such that the confluence chamber 121, the receiving chamber 1251 and the containment chamber 22 are connected.

[0082] In this embodiment, when the formation process is performed and the negative pressure source applies suction, a portion of the electrolyte in the containment chamber 22 of the battery 2 is pumped into the receiving chamber 1251 for temporary storage to prevent excess electrolyte during the formation process from causing an overreaction, thereby causing a decline in the performance of the battery 2; upon completion of the formation process, the electrolyte in the receiving chamber 1251 returns to the containment chamber 22 of the battery 2.

[0083] In other embodiments, the second port 123 may be disposed on the confluence tube 124.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the application has been described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that it is still possible to make modifications to the technical solutions listed in the above embodiments, or to make equivalent substitutions for some or all of the technical features. techniques in these embodiments; and such modifications or replacements do not exclude the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

Claims

1. A container (1), configured to carry a battery (2), the battery (2) having a liquid injection port (21) and a containment chamber (22) connected to each other, the container (1) comprising: a container body (11); a negative pressure assembly (12), the negative pressure assembly (12) being installed on the container body (11), the negative pressure assembly (12) having a first port (122) and a second port (123) connected to each other, the first port (122) being connected to the liquid injection port (21); and a control valve (13), the control valve (13) being provided on the tray body (11) and being connected to the second port (123), the control valve (13) being configured to connect a negative pressure source and configured to control the second port (123) to connect to or disconnect from the negative pressure source.

2. A container (1) according to claim 1, wherein the first port (122) comprises a plurality of first ports, the negative pressure assembly (12) further comprises a confluence chamber (121), the plurality of first ports and the second port (123) are connected to the confluence chamber (121).

3. The container (1) according to claim 2, wherein the control valve (13) is provided with a first interface (131), a second interface (132) and a third interface (133), the first interface (131) being configured to connect to an air source, the second interface (132) being configured to connect to the negative pressure source, and the third interface (133) being connected to the second port (123); in a case where the air source is vented to the first interface (131), the second interface (132) is connected to the third interface (133), so that the second port (123) is connected to the negative pressure source, the negative pressure source applying suction so that the confluence chamber (121) and the containment chamber (22) form a negative pressure space; in a case where the air source stops ventilation to the first interface (131), the second interface (132) and the third interface (133) are disconnected, so that the second port (123) is disconnected from the negative pressure source.

4. A bin (1) according to claim 3, further comprising a positioning member (14), and the positioning member (14) being connected to the bin body (11) and the control valve (13) to limit the relative position of the control valve (13) and the bin body (11).

5. A tray (1) according to claim 4, wherein the tray body (11) is provided with an insertion hole (111); the positioning member (14) comprises a main body (141), a first positioning portion (142) and a second positioning portion (143), the first positioning portion (142) and the second positioning portion (143) both being provided on the main body (141), the first positioning portion (142) being configured to plug into the insertion hole (111), the second positioning portion (143) being configured to plug into the first interface (131) and / or the second interface (132).

6. A tray (1) according to claim 5, wherein the second positioning portion (143) comprises two second positioning portions (143), wherein one of the second positioning portions (143) is configured to plug into the first interface (131), and the other of the second positioning portions (143) is configured to plug into the second interface (132).

7. A tray (1) according to claim 6, wherein the two second positioning portions (143) are spaced apart along the first direction; the first positioning portion (142) comprises at least two first positioning portions (142), the at least two first positioning portions (142) being spaced apart along the first direction, and the first positioning portion (142) and the second positioning portion (143) being offset from each other in the second direction, the first direction and the second direction being perpendicular to each other.

8. A tray (1) according to any one of claims 5 to 7, wherein one end of the first positioning portion (142) remote from the main body (141) is provided with a first guide bevel (1441), the first guide bevel (1441) gradually approaching the axis of the first positioning portion. (142) along a direction away from the main body (141), and being configured to guide the insertion of the first positioning part (142) into the insertion hole (111); one end of the second positioning part (143) away from the main body (141) is provided with a second guide bevel (1442), the second guide bevel (1442) gradually approaching the axis of the second positioning part (143) along a direction away from the main body (141), and being configured to guide the insertion of the second positioning part (143) into the first interface (131) and / or the second interface (132).

9. A container (1) according to any one of claims 5 to 7, wherein a stopper portion (145) is provided on the outer circumferential surface of the second positioning portion (143), the stopper portion (145) protruding from the second positioning portion (143) along a radial direction of the second positioning portion (143), and the stopper portion (145) being configured to abut against the control valve (13) in a case where the second positioning portion (143) is plugged into the first interface (131) and / or the second interface (132).

10. A container (1) according to any one of claims 2 to 7, wherein the negative pressure assembly (12) comprises: a confluence tube (124), the confluence tube (124) being provided with the confluence chamber (121), and the second port (123) being provided on the confluence tube (124); and a receiving member (125), the receiving member (125) having a receiving chamber (1251), the first port (122) being provided on the receiving member (125) and communicating with the receiving chamber (1251), the receiving chamber (1251) being connected to the confluence tube (124) such that the confluence chamber (121), the receiving chamber (1251) and the containment chamber (22) are connected to each other.

Images