Battery cell transport case and manufacturing method

Abstract

The invention discloses a battery cell transport case and a manufacturing method, and belongs to the technical field of battery cell transportation, the battery cell transport case comprises a case body and a case cover covering the case body, the case body and the case cover are enclosed to form an accommodating space for placing a battery cell, the case body is provided with a first explosion venting port, the case cover is provided with a second explosion venting port, and the first explosion venting port and the second explosion venting port are communicated with each other. The first explosion venting opening is formed in the box body, the second explosion venting opening is formed in the box cover, the first explosion-proof membrane is arranged at the first explosion venting opening, the second explosion-proof membrane is arranged at the second explosion venting opening, the first smoke sensing monitoring alarm is arranged on the box body, the first smoke sensing monitoring alarm and the first explosion venting opening are arranged in a staggered mode, and the second smoke sensing monitoring alarm is arranged on the box cover. The second smoke sensing monitoring alarm and the second explosion venting opening are arranged in a staggered mode. The air pressure balance valve is arranged on the box cover. The technical effects that the safety and the convenience of the battery cell in the transportation process before and after the test can be guaranteed, and the influence on the battery performance is avoided are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of battery cell transportation, and in particular relates to a battery cell transportation box and a manufacturing method thereof. Background Art

[0002] As the core component of energy storage equipment, the safety of battery cells during transportation is of vital importance. As a special packaging for battery cell transportation, battery cell transport boxes must meet strict packaging requirements, not only to ensure the safety of battery cells during transportation, but also to consider the impact of environmental temperature and humidity changes on battery cell performance, and to take into account the transportation functions of new finished battery cells and scrapped battery cells after testing. In the prior art, battery cell transport boxes mainly include plastic pallets, corrugated boxes, and wooden frames, but plastic pallets may not provide sufficient physical protection to resist impact and vibration, and corrugated boxes are easily damaged in humid environments, resulting in insufficient sealing and durability. Although wooden frames provide better structural support, they are heavy and difficult to operate. Since battery cells may leak, short-circuit and other safety hazards due to environmental changes during transportation, the above-mentioned battery cell transport boxes cannot provide effective protection measures, and the existing transport boxes lack effective measures in temperature and humidity control, which can easily cause changes in the open circuit voltage of the battery cells and affect battery performance.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the transport box cannot ensure the safety and convenience of the battery cells during transportation before and after the test, which easily affects the battery performance.

[0005] In order to solve the above technical problems, the present invention provides a battery cell transport box, which includes a box body and a box cover covered on the box body, the box body and the box cover enclosed to form a storage space for placing battery cells, a first explosion-proof port is provided on the box body, a second explosion-proof port is provided on the box cover, a first explosion-proof diaphragm is provided on the first explosion-proof port, a second explosion-proof diaphragm is provided on the second explosion-proof port, a first smoke monitoring alarm is provided on the box body, the first smoke monitoring alarm is staggered with the first explosion-proof port, a second smoke monitoring alarm is provided on the box cover, the second smoke monitoring alarm is staggered with the second explosion-proof port, and an air pressure balance valve is provided on the box cover.

[0006] Optionally, the box body includes a front side panel, a left side panel, a rear side panel and a right side panel connected in sequence, and a bottom side panel respectively connected to the front side panel, the left side panel, the rear side panel and the right side panel, the rear side panel is rotatably connected to the box cover, the front side panel, the left side panel, the rear side panel, the right side panel, the bottom side panel and the box cover enclose the accommodating space, wherein the first explosion vent and the first smoke detection alarm are respectively arranged on the rear side panel.

[0007] Optionally, a first light bar is arranged on the box cover, a second light bar is arranged on the front side plate, and a third light bar is arranged on the rear side plate, and the first light bar, the second light bar and the third light bar are respectively located in the accommodating space.

[0008] Optionally, a first observation window and a second observation window are respectively provided on the left side panel, and the first observation window and the second observation window are arranged sequentially along the bottom side panel close to the box cover, a first sealing glass is provided on the first observation window, and a second sealing glass is provided on the second observation window.

[0009] Optionally, the first sealing glass includes two layers of first explosion-proof glass and a first PVB layer arranged between the two layers of the first explosion-proof glass and respectively connected to the two layers of the first explosion-proof glass; the second sealing glass includes two layers of second explosion-proof glass and a second PVB layer arranged between the two layers of the second explosion-proof glass and respectively connected to the two layers of the second explosion-proof glass.

[0010] Optionally, a collecting trough and a drainage hole are provided on the bottom side plate, the collecting trough is located in the accommodating space, and the collecting trough is in a ship shape, the drainage hole is located in the collecting trough, and a sealing member is provided in the drainage hole.

[0011] Optionally, the opening pressure range of the first explosion-proof diaphragm is 0.5 MPa±0.2 MPa, and the opening pressure range of the second explosion-proof diaphragm is 0.5 MPa±0.2 MPa.

[0012] Optionally, the battery cell transport box also includes a handle assembly, a roller connected to the box body, and a locking assembly, the handle assembly includes a sliding component slidably connected to the box body, a rolling bearing rotatably connected to the sliding component, and a handle body connected to the rolling bearing, the handle body is located outside the accommodating space, the roller is located outside the accommodating space, and the locking assembly is respectively connected to the box body and the box cover to lock the box body and the box cover through the locking assembly.

[0013] According to another aspect of the present invention, the present invention also provides a method for manufacturing a battery cell transport box, the manufacturing method includes the battery cell transport box, and also includes using martensitic precipitation hardened stainless steel material to respectively make a box body and a box cover; installing an inner liner on the box body and the box cover, respectively, the interior of the inner liner uses high-density polyethylene and cut sponge as a filling buffer; processing a first explosion vent on the box body, installing a first explosion-proof diaphragm into the first explosion vent, and installing a first smoke detector on the box body, the first smoke detector The device is staggered with the first explosion vent; a second explosion vent is processed on the box cover, a second explosion-proof diaphragm is installed in the second explosion vent, a second smoke monitoring alarm is installed on the box cover, and an air pressure balance valve is installed on the box cover, and the second smoke monitoring alarm is staggered with the second explosion vent; after the box body and the box cover are rotatably connected, a storage space for placing the battery cell is formed by enclosing the box body and the box cover, and the first smoke monitoring alarm and the second smoke monitoring alarm are located in the storage space.

[0014] Optionally, the manufacturing method also includes isolating the accommodating space into an upper placement space and a lower placement space by a partition; placing the battery cells in the lower placement space and the upper placement space in turn; wherein a first observation window and a second observation window are respectively provided on the box body, a first sealing glass is installed in the first observation window, the first sealing glass includes two layers of first explosion-proof glass and a first PVB layer arranged between the two layers of the first explosion-proof glass and connected to the two layers of the first explosion-proof glass respectively, and a second sealing glass is installed in the second observation window, the second sealing glass includes two layers of second explosion-proof glass and a second PVB layer arranged between the two layers of the second explosion-proof glass and connected to the two layers of the second explosion-proof glass respectively.

[0015] Beneficial effects:

[0016] The present invention provides a battery cell transport box, which is formed by closing a box cover on a box body, and the box body and the box cover enclose a storage space for placing the battery cell, a first explosion vent is set on the box body, a second explosion vent is set on the box cover, a first explosion-proof membrane is set on the first explosion vent, a second explosion-proof membrane is set on the second explosion vent, a first smoke monitoring alarm is set on the box body, the first smoke monitoring alarm is staggered with the first explosion vent, the second smoke monitoring alarm is set on the box cover, the second smoke monitoring alarm is staggered with the second explosion vent, and a pressure balance valve is set on the box cover. In this way, during the transportation of the battery cell, the box cover and the box body provide a sealed storage space for the battery cell for transportation, and at the same time, through the first explosion vent and the second explosion vent, and the first explosion-proof membrane and the second explosion-proof membrane matched with the first explosion vent and the second explosion vent, respectively, a double pressure relief of the battery cell transport box is formed. When the battery cell is abnormal, the first explosion-proof membrane and the second explosion-proof membrane can be quickly ruptured under the action of pressure to release the internal pressure, effectively preventing the box body from rupturing and the battery cell from being damaged. In addition, the first smoke monitoring alarm and the second smoke monitoring alarm can provide real-time smoke monitoring for the battery cell transport box. Since the first smoke monitoring alarm and the first explosion vent are staggered, and the second smoke monitoring alarm and the second explosion vent are staggered, it is possible to avoid affecting the normal operation of the first smoke monitoring alarm and the second smoke monitoring alarm due to direct exposure to a potentially dangerous environment, which is beneficial to improving the accuracy and reliability of the monitoring results. In addition, the air pressure balance valve not only ensures the stability of the air pressure inside the box, making it easy to open the box cover or close the box cover to the box, but also helps prevent external dust, water vapor and other impurities from entering to prevent water and dust. Thereby achieving the technical effect of being able to ensure the safety and convenience of the battery cells during transportation before and after the test and avoid affecting the battery performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic structural diagram of a battery cell transport box provided in an embodiment of the present invention.

[0019] Figure 2 A schematic structural diagram of a first explosion-proof glass in a battery cell transport box provided in an embodiment of the present invention.

[0020] Figure 3 The present invention provides a flowchart of a method for manufacturing a battery cell transport box. DETAILED DESCRIPTION

[0021] 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.

[0022] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0023] In the embodiments of the present application, at least one refers to one or more; multiple refers to two or more. In the description of the present application, the words "first", "second", "third", etc. are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0024] References to "one embodiment" or "some embodiments" etc. described in this specification mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, in this specification, the terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways. It should be noted that in the embodiments of the present application, "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0025] It should be pointed out that in the embodiments of the present invention, when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. At the same time, "connection" in the embodiments of the present application can also be understood as electrical connection, and the connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, A is connected to B, which can be either a direct connection between A and B or an indirect connection between A and B through one or more other electrical components. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the embodiments of the present invention are for illustrative purposes only and are not intended to limit the present invention.

[0026] A battery cell transport box provided in the first embodiment of the present invention is shown in FIG. Figure 1 to Figure 2 As shown, Figure 1 is a structural schematic diagram of a battery cell transport box provided by an embodiment of the present invention, Figure 2 It is a structural schematic diagram of the first explosion-proof glass in a battery cell transport box provided by an embodiment of the present invention. A battery cell transport box provided by an embodiment of the present invention comprises a box body 1 and a box cover 2, the box cover 2 is covered on the box body 1, the box body 1 and the box cover 2 enclose a storage space 21, the storage space 21 is used to place the battery cell 8, a first explosion vent 11 is provided on the box body 1, a second explosion vent 22 is provided on the box cover 2, a first explosion-proof membrane 12 is provided on the first explosion vent 11, a second explosion-proof membrane 23 is provided on the second explosion vent 22, a first smoke monitoring alarm 3 is provided on the box body 1, the first smoke monitoring alarm 3 and the first explosion vent 11 are arranged in a staggered manner, a second smoke monitoring alarm 31 is provided on the box cover 2, the second smoke monitoring alarm 31 and the second explosion vent 22 are arranged in a staggered manner, and an air pressure balance valve 4 is provided on the box cover 2.

[0027] Among them, the first explosion-proof membrane 12 and the second explosion-proof membrane 23 are both made of explosion-proof materials, have a predetermined rupture pressure value, and can respond quickly when the battery cell 8 is abnormal. The battery cell 8 can release energy through the first explosion vent 11 and the second explosion vent 22 under abnormal conditions, ensuring that the first explosion-proof membrane 12 and the second explosion-proof membrane 23 can be quickly ruptured when the preset pressure value is reached, effectively dispersing and releasing the internal pressure, preventing the box body 1 from rupturing due to excessive pressure, and protecting the battery cell 8 from damage.

[0028] The first smoke detector 3 and the second smoke detector 31 can use high-sensitivity sensors to monitor the smoke situation in the battery cell transport box in real time. Since the first smoke detector 3 and the second smoke detector 31 are arranged in a staggered manner with the corresponding explosion vents, even if an abnormal situation occurs in the box, the first smoke detector 3 and the second smoke detector 31 can be effectively prevented from being directly exposed to high temperature, high pressure or extremely high smoke concentration environments, thereby ensuring the accuracy and reliability of the monitoring results.

[0029] Among them, through the adjustment of the air pressure balance valve 4, when the internal air pressure of the battery cell 8 fluctuates due to factors such as temperature changes and vibrations during transportation, the internal air pressure of the box body 1 can also be kept stable, so that the operator can easily open or close the box cover 2 when necessary. At the same time, the air pressure balance valve 4 also has a certain dust and water resistance function, which can effectively prevent external impurities from entering the box, which is conducive to improving the safety and reliability of the battery cell transportation box.

[0030] In this embodiment, by closing the box cover 2 on the box body 1, the box body 1 and the box cover 2 enclose a accommodating space 21 for placing the battery cell 8, a first explosion-proof vent 11 is arranged on the box body 1, and a second explosion-proof vent 22 is arranged on the box cover 2, a first explosion-proof diaphragm 12 is arranged on the first explosion-proof vent 11, and a second explosion-proof diaphragm 23 is arranged on the second explosion-proof vent 22, a first smoke monitoring alarm 3 is arranged on the box body 1, and the first smoke monitoring alarm 3 is staggered with the first explosion-proof vent 11, a second smoke monitoring alarm 31 is arranged on the box cover 2, and the second smoke monitoring alarm 31 is staggered with the second explosion-proof vent 22, and an air pressure balance valve 4 is arranged on the box cover 2. In this way, during the transportation of the battery cell 8, the box cover 2 and the box body 1 provide a sealed accommodation space 21 for the battery cell 8 for transportation, and at the same time, through the first explosion vent 11 and the second explosion vent 22, and the first explosion-proof membrane 12 and the second explosion-proof membrane 23 respectively matched with the first explosion vent 11 and the second explosion vent 22, a double pressure relief of the battery cell transportation box is formed. When the battery cell 8 is abnormal, the first explosion-proof membrane 12 and the second explosion-proof membrane 23 can be quickly ruptured under the pressure to release the internal pressure, effectively preventing the box body 1 from rupturing and the battery cell 8 from being damaged. In addition, the first smoke monitoring alarm 3 and the second smoke monitoring alarm 31 can provide real-time smoke monitoring for the battery cell transportation box. Since the first smoke monitoring alarm 3 and the first explosion vent 11 are staggered, and the second smoke monitoring alarm 31 and the second explosion vent 22 are staggered, it can avoid affecting the normal operation of the first smoke monitoring alarm 3 and the second smoke monitoring alarm 31 due to direct exposure to a potential dangerous environment, which is conducive to improving the accuracy and reliability of the monitoring results. Furthermore, the air pressure balance valve 4 not only ensures the stability of the air pressure inside the box 1, making it easy to open the box cover 2 or close the box cover 2 with the box 1, but also helps prevent the entry of external impurities such as dust and water vapor to prevent water and dust. Thus, the technical effect of ensuring the safety and convenience of the battery cell 8 during transportation before and after the test and avoiding affecting the battery performance is achieved.

[0031] As an embodiment, the box body 1 includes a front side panel 13, a left side panel 14, a rear side panel 15, a right side panel 16 and a bottom side panel 17, the front side panel 13, the left side panel 14, the rear side panel 15 and the right side panel 16 are connected in sequence, the bottom side panel 17 is connected to the front side panel 13, the left side panel 14, the rear side panel 15 and the right side panel 16 respectively, the rear side panel 15 is rotatably connected to the box cover 2, the front side panel 13, the left side panel 14, the rear side panel 15, the right side panel 16, the bottom side panel 17 and the box cover 2 enclose a storage space 21, wherein the first explosion vent 11 and the first smoke monitoring alarm 3 are respectively arranged on the rear side panel 15. The rear side panel 15 and the box cover 2 can be rotatably connected by a hinge, so that the box cover 2 can be conveniently opened or closed. The front side panel 13, the left side panel 14, the rear side panel 15, the right side panel 16, the bottom side panel 17 and the box cover 2 together enclose a closed accommodation space 21, which is used to safely place the battery cell 8. During the transportation of the battery cell 8, if an abnormality occurs, causing the internal pressure to increase or smoke to be generated, the first explosion-proof diaphragm 12 will quickly rupture under the pressure to release the internal pressure and prevent the box body 1 from rupturing. At the same time, the first smoke monitoring alarm 3 can monitor the smoke in real time and sound an alarm to remind the operator to deal with it in time. Since the first smoke monitoring alarm 3 is staggered with the first explosion vent 11, its normal operation is avoided from being affected by direct exposure to a potentially dangerous environment, which is conducive to improving the accuracy and reliability of the monitoring results.

[0032] In some embodiments, the first light bar 5 is disposed on the box cover 2, the second light bar 51 is disposed on the front side plate 13, and the third light bar 52 is disposed on the rear side plate 15. The first light bar 5, the second light bar 51, and the third light bar 52 are respectively located inside the accommodating space 21. The first light bar 5, the second light bar 51, and the third light bar 52 can all be LED lights. By disposing the first light bar 5, the second light bar 51, and the third light bar 52, the operator can more conveniently observe the transportation status of the battery cell 8. Especially in an environment with insufficient light, the first light bar 5, the second light bar 51, and the third light bar 52 are used in combination to provide internal lighting or indication of the battery cell transport box, which is conducive to improving the convenience and safety of operation.

[0033] In some embodiments, the first observation window 141 and the second observation window 142 are respectively arranged on the left side plate 14, and the first observation window 141 and the second observation window 142 are arranged in sequence along the bottom side plate 17 in the direction close to the box cover 2. A first sealing glass 1411 is provided in the first observation window 141, and a second sealing glass is provided in the second observation window 142. By providing the first observation window 141, the second observation window 142, the first sealing glass 1411 and the second sealing glass, the operator can directly observe the transportation status of the battery cell 8 without opening the box cover 2, thereby avoiding the potential safety hazards caused by frequently opening the box cover 2. At the same time, the first sealing glass 1411 and the second sealing glass can also ensure the sealing of the battery cell transportation box, and prevent external impurities such as dust and water vapor from entering the box.

[0034] In some embodiments, the first sealing glass 1411 includes two layers of first explosion-proof glass 14111 and first explosion-proof glass 14111, the first PVB layer 14112 is disposed between the two layers of first explosion-proof glass 14111, the first PVB layer 14112 is a polyvinyl butyral layer, the first PVB layer 14112 is respectively connected to the two layers of first explosion-proof glass 14111, and the second sealing glass includes two layers of second explosion-proof glass and a second PVB layer, the second PVB layer is disposed between the two layers of second explosion-proof glass, and the second PVB layer is respectively connected to the two layers of second explosion-proof glass. By adopting the setting method of explosion-proof glass and PVB layer, the strength and explosion-proof performance of the sealing glass are significantly improved, even if the battery cell 8 has an abnormality during transportation, resulting in an increase in internal pressure or an impact, the sealing glass can withstand the pressure and maintain integrity, thereby protecting the overall safety of the observation window and the battery cell transportation box.

[0035] In some embodiments, a collecting trough and a drainage hole are respectively provided on the bottom side plate 17, the collecting trough is located inside the accommodating space 21, and the collecting trough is in a boat shape, the drainage hole is located in the collecting trough, and a seal is provided in the drainage hole, and the seal includes a bolt with a sealing ring, and the bolt with the sealing ring is installed on the drainage hole to seal the drainage hole. The collecting trough is located in the accommodating space 21, and the collecting trough is in a boat shape and can be used to collect liquids such as electrolyte that may leak. The drainage hole is located in the collecting trough, and a seal is provided in the drainage hole to ensure the sealing and safety of the drainage hole. By providing the collecting trough and the drainage hole, the battery cell transport box can better cope with the leakage that may occur in the battery cell 8 during transportation. When liquids such as electrolyte leak, they will be collected in the collecting trough and discharged out of the box through the drainage hole, which can avoid corrosion and damage of the electrolyte to the battery cell 8 and other components. At the same time, the seal will ensure the sealing of the drainage hole, preventing external dust, water vapor and other impurities from entering the box, which is beneficial to improving the safety and reliability of the battery cell transport box.

[0036] In some embodiments, the opening pressure range of the first explosion-proof diaphragm 12 is 0.5MPa±0.2MPa, and the opening pressure range of the second explosion-proof diaphragm 23 is 0.5MPa±0.2MPa, ensuring that when the battery cell 8 is abnormal during transportation, such as when the internal pressure rises sharply, the first explosion-proof diaphragm 12 and the second explosion-proof diaphragm 23 can be quickly ruptured within a predetermined pressure range, effectively releasing the internal pressure, and preventing the box body 1 from rupturing due to being unable to withstand the pressure, thereby protecting the battery cell 8 from damage. During the transportation of the battery cell 8, if the internal pressure of the battery cell 8 increases due to various reasons such as short circuit and overheating, when the pressure reaches or exceeds the opening pressure range of the first explosion-proof diaphragm 12 and the second explosion-proof diaphragm 23, the explosion-proof diaphragm will quickly rupture and release the internal pressure, which not only helps to prevent the box body 1 from rupturing, but also effectively slows down or prevents further damage to the battery cell 8. At the same time, since the first smoke detector 3 and the second smoke detector 31 are staggered with the first explosion vent 11 and the second explosion vent 22, they can avoid being directly exposed to a potentially dangerous environment and affecting normal operation, ensuring the accuracy and reliability of the monitoring results. The battery cell transport box can ensure the safety of the battery cell 8 and avoid the situation where the battery performance is affected by damage to the battery cell 8.

[0037] In some embodiments, a cell transport box provided by an embodiment of the present invention further includes a handle assembly 6, a roller 7 and a lock assembly. The handle assembly 6 includes a sliding component 61, a rolling bearing 62 and a handle body 63. The sliding component 61 is slidably connected to the box body 1, the rolling bearing 62 is rotatably connected to the sliding component 61, the handle body 63 is connected to the rolling bearing 62, and the handle body 63 is located outside the accommodating space 21. The roller 7 is connected to the box body 1, and the number of rollers 7 can be 4, and the 4 rollers 7 are respectively installed at the four angles of the bottom side plate 17 of the box body 1. The lock assembly is respectively connected to the box body 1 and the box cover 2, so as to lock the box body 1 and the box cover 2 through the lock assembly. For example, the lock assembly can include a padlock, and the lock body of the padlock is equipped with a ring-shaped or straight-shaped lock beam that can be buckled, so that the padlock is directly buckled with the lock body through the lock beam to form a closed lock. Or the lock assembly may include a lock plate lock, which includes a lock body, a lock tongue, a lock core and a lock plate fixed to the box body 1 or the box cover 2, wherein the lock tongue is inserted into a hole or a groove in the lock plate, and is locked or unlocked by rotating the lock core. It can be understood by those skilled in the art that in a battery cell transport box provided in an embodiment of the present invention, there is no limitation on the specific structure of the sliding component 61, and it is only necessary to realize that the sliding component 61 is slidably connected to the box body 1, and the sliding component 61 can slide up and down on the side of the box body 1, such as a card slot is provided on the side of the box body 1, one end of the sliding component 61 is embedded in the card slot for sliding connection, and the other end of the sliding component 61 is connected to the rolling bearing 62. It can be understood by those skilled in the art that in a battery transport box provided in an embodiment of the present invention, there is no restriction on the specific structure of the rolling bearing 62. It is only necessary to realize that the rolling bearing 62 is rotatably connected to the sliding component 61 and the handle body 63 respectively, and the handle body 63 and the sliding component 61 are mutually rotated through the rolling bearing 62, such as the inner ring of the rolling bearing 62 is connected to the sliding component 61, and the outer ring of the rolling bearing 62 is connected to the handle body 63. The operator can easily hold and move the battery transport box through the handle assembly 6, and the battery transport box can be flexibly rolled and moved on the ground through the roller 7, which is conducive to reducing the difficulty of transportation and labor intensity. At the same time, the locking assembly can firmly lock the box body 1 and the box cover 2 to prevent the battery 8 from falling off or being damaged due to bumps or collisions during transportation, which not only improves the practicality and convenience of the battery transport box, but also enhances its safety and reliability. The battery transport box can better meet the safety and convenience requirements of the battery 8 during transportation before and after the test, and avoid situations that affect the battery performance.

[0038] In order to explain in detail a method for manufacturing a battery cell transport box provided by the present invention, the above-mentioned embodiment 1 explains in detail a battery cell transport box. Based on the same inventive concept, the present application also provides a method for manufacturing a battery cell transport box, see embodiment 2 for details.

[0039] See also Figure 3, Figure 3 The flowchart of the manufacturing method of a battery cell transport box provided by the embodiment of the present invention is as follows. Embodiment 2 of the present invention provides a manufacturing method of a battery cell transport box, including the above-mentioned battery cell transport box, and further comprising the following steps:

[0040] S100, the box body 1 and the box cover 2 are made of martensitic precipitation hardening stainless steel material;

[0041] S200, installing inner liners on the box body 1 and the box cover 2 respectively, wherein the inner liners are filled with high-density polyethylene and cut sponges as cushioning materials;

[0042] S300, processing a first explosion vent 11 on the box body 1, installing a first explosion-proof membrane 12 into the first explosion vent 11, and installing a first smoke detector 3 on the box body 1, wherein the first smoke detector 3 and the first explosion vent 11 are arranged in a staggered manner;

[0043] S400, a second explosion vent 22 is formed on the box cover 2, a second explosion-proof membrane 23 is installed in the second explosion vent 22, a second smoke detector 31 is installed on the box cover 2, and a pressure balance valve 4 is installed on the box cover 2, wherein the second smoke detector 31 and the second explosion vent 22 are arranged in a staggered manner;

[0044] S500, after the box body 1 and the box cover 2 are rotatably connected, a storage space 21 for placing the battery cell 8 is formed by the box body 1 and the box cover 2, and the first smoke detection alarm 3 and the second smoke detection alarm 31 are located in the storage space 21.

[0045] Embodiment 2 of the present invention provides a method for manufacturing a battery cell transport box, which also includes isolating an upper placement space and a lower placement space in the accommodating space 21 by a partition; placing the battery cells 8 in the lower placement space and the upper placement space in turn; wherein a first observation window 141 and a second observation window 142 are respectively provided on the box body 1, and a first sealing glass 1411 is installed in the first observation window 141, the first sealing glass 1411 includes two layers of first explosion-proof glass 14111 and a first PVB layer 14112 arranged between the two layers of the first explosion-proof glass 14111 and respectively connected to the two layers of the first explosion-proof glass 14111, and a second sealing glass is installed in the second observation window 142, the second sealing glass includes two layers of second explosion-proof glass and a second PVB layer arranged between the two layers of the second explosion-proof glass and respectively connected to the two layers of the second explosion-proof glass. Those skilled in the art will appreciate that, in the method for manufacturing a battery cell transport box provided in the second embodiment of the present invention, there is no limitation on the specific structure of the partition. It is only necessary to separate the upper placement space and the lower placement space in the accommodating space 21 through the partition.

[0046] The present invention provides a method for manufacturing a battery cell transport box, wherein a box body 1 and a box cover 2 are respectively manufactured by using martensitic precipitation hardening stainless steel material, and inner liners are respectively installed on the box body 1 and the box cover 2, wherein the interior of the inner liners uses high-density polyethylene and cut sponge as filling buffers, a first explosion vent 11 is processed on the box body 1, a first explosion-proof membrane 12 is installed in the first explosion vent 11, and a first smoke monitoring alarm 3 is installed on the box body 1, the first smoke monitoring alarm 3 is staggered with the first explosion vent 11, and a first explosion vent 11 is processed on the box cover 2. The second explosion-proof diaphragm 23 is installed in the second explosion-proof diaphragm 23, and the second smoke monitoring alarm 31 is installed on the box cover 2, and the air pressure balance valve 4 is installed on the box cover 2. The second smoke monitoring alarm 31 and the second explosion-proof diaphragm 23 are staggered. After the box body 1 and the box cover 2 are rotatably connected, the box body 1 and the box cover 2 are enclosed to form a storage space 21 for placing the battery cell 8, and the first smoke monitoring alarm 3 and the second smoke monitoring alarm 31 are located in the storage space 21. In this way, during the transportation of the battery cell 8, the box cover 2 and the box body 1 provide the battery cell 8 with a sealed storage space 21 for transportation, and at the same time, the first explosion-proof diaphragm 12 and the second explosion-proof diaphragm 23 that are matched with the first explosion-proof diaphragm 11 and the second explosion-proof diaphragm 23, respectively, constitute a double pressure relief of the battery cell transportation box. When the battery cell 8 is abnormal, the first explosion-proof membrane 12 and the second explosion-proof membrane 23 can be quickly broken under the pressure to release the internal pressure, effectively preventing the box body 1 from breaking and the battery cell 8 from being damaged. In addition, the first smoke monitoring alarm 3 and the second smoke monitoring alarm 31 can provide real-time smoke monitoring for the battery cell transport box. Since the first smoke monitoring alarm 3 and the first explosion vent 11 are arranged in a staggered manner, and the second smoke monitoring alarm 31 and the second explosion vent 22 are arranged in a staggered manner, it is possible to avoid affecting the normal operation of the first smoke monitoring alarm 3 and the second smoke monitoring alarm 31 due to direct exposure to a potentially dangerous environment, which is conducive to improving the accuracy and reliability of the monitoring results. In addition, the air pressure balance valve 4 not only ensures the stability of the air pressure inside the box body 1, facilitates opening the box cover 2 or closing the box cover 2 with the box body 1, but also helps prevent external dust, water vapor and other impurities from entering to prevent water and dust. Thereby achieving the technical effect of being able to ensure the safety and convenience of the battery cell 8 during transportation before and after the test and avoiding affecting the battery performance.

[0047] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A battery cell transport box, characterized in that: The battery cell transport box includes a box body and a box cover covering the box body, the box body and the box cover enclose a storage space for placing the battery cells, the box body is provided with a first explosion-proof vent, the box cover is provided with a second explosion-proof vent, a first explosion-proof diaphragm is provided at the first explosion-proof vent, a second explosion-proof diaphragm is provided at the second explosion-proof vent, a first smoke monitoring alarm is provided at the box body, the first smoke monitoring alarm is staggered with the first explosion-proof vent, a second smoke monitoring alarm is provided at the box cover, the second smoke monitoring alarm is staggered with the second explosion-proof vent, and an air pressure balancing valve is provided at the box cover.

2. The battery cell transport box according to claim 1, characterized in that: The box body includes a front side panel, a left side panel, a rear side panel and a right side panel which are connected in sequence, and a bottom side panel which are respectively connected to the front side panel, the left side panel, the rear side panel and the right side panel, the rear side panel is rotatably connected to the box cover, the front side panel, the left side panel, the rear side panel, the right side panel, the bottom side panel and the box cover enclose the accommodating space, wherein the first explosion vent and the first smoke detection alarm are respectively arranged on the rear side panel.

3. The battery cell transport box according to claim 2, characterized in that: A first light bar is arranged on the box cover, a second light bar is arranged on the front side plate, and a third light bar is arranged on the rear side plate. The first light bar, the second light bar and the third light bar are respectively located in the accommodating space.

4. The battery cell transport box according to claim 2, characterized in that: A first observation window and a second observation window are respectively provided on the left side plate, and the first observation window and the second observation window are arranged in sequence along the bottom side plate close to the box cover. A first sealing glass is provided on the first observation window, and a second sealing glass is provided on the second observation window.

5. The battery cell transport box according to claim 4, characterized in that: The first sealing glass includes two layers of first explosion-proof glass and a first PVB layer arranged between the two layers of the first explosion-proof glass and connected to the two layers of the first explosion-proof glass respectively; the second sealing glass includes two layers of second explosion-proof glass and a second PVB layer arranged between the two layers of the second explosion-proof glass and connected to the two layers of the second explosion-proof glass respectively.

6. The battery cell transport box according to claim 2, characterized in that: The bottom side plate is provided with a collecting groove and a drainage hole. The collecting groove is located in the accommodating space and is in a ship shape. The drainage hole is located in the collecting groove. A sealing member is provided in the drainage hole.

7. The battery cell transport box according to claim 1, characterized in that: The opening pressure range of the first explosion-proof diaphragm is 0.5MPa±0.2MPa, and the opening pressure range of the second explosion-proof diaphragm is 0.5MPa±0.2MPa.

8. The battery cell transport box according to claim 1, characterized in that: The battery cell transport box also includes a handle assembly, a roller connected to the box body, and a locking assembly. The handle assembly includes a sliding component slidably connected to the box body, a rolling bearing rotatably connected to the sliding component, and a handle body connected to the rolling bearing. The handle body is located outside the accommodating space, and the roller is located outside the accommodating space. The locking assembly is respectively connected to the box body and the box cover so as to lock the box body and the box cover through the locking assembly.

9. A method for manufacturing a battery cell transport box, characterized in that: The manufacturing method comprises the battery cell transport box according to any one of claims 1 to 8, and further comprises The box body and the box cover are made of martensitic precipitation hardening stainless steel. Install linings on the box body and the box cover respectively, and the interior of the linings uses high-density polyethylene and cut sponges as filling and buffering materials; A first explosion vent is processed on the box body, a first explosion-proof membrane is installed in the first explosion vent, and a first smoke detector is installed on the box body, wherein the first smoke detector is staggered with the first explosion vent; A second explosion vent is machined on the box cover, a second explosion-proof membrane is installed in the second explosion vent, a second smoke detector is installed on the box cover, and a pressure balance valve is installed on the box cover, and the second smoke detector is staggered with the second explosion vent; After the box body and the box cover are rotatably connected, a storage space for placing the battery cell is formed by the box body and the box cover, and the first smoke detection alarm and the second smoke detection alarm are located in the storage space.

10. The method for manufacturing a battery cell transport box according to claim 9, characterized in that: The manufacturing method also includes isolating the accommodating space into an upper placement space and a lower placement space by a partition; placing the battery cells in the lower placement space and the upper placement space in sequence; wherein a first observation window and a second observation window are respectively provided on the box body, a first sealing glass is installed in the first observation window, the first sealing glass includes two layers of first explosion-proof glass and a first PVB layer which is arranged between the two layers of the first explosion-proof glass and is respectively connected to the two layers of the first explosion-proof glass, and a second sealing glass is installed in the second observation window, the second sealing glass includes two layers of second explosion-proof glass and a second PVB layer which is arranged between the two layers of the second explosion-proof glass and is respectively connected to the two layers of the second explosion-proof glass.

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