Glue injection device

Abstract

The utility model discloses a glue injection device. The glue injection device comprises a glue injection mechanism, a battery fixing mechanism and a turnover mechanism, the glue injection mechanism comprises a glue injection seat and a glue injection pipe connected to the glue injection seat; the battery fixing mechanism comprises a clamping plate; the turnover mechanism comprises a turnover part and a glue injection seat, the clamping plate is arranged on the turnover part, the turnover part is switched between a battery fixing position and a battery glue injection position, and the turnover part enables the glue injection seat and the clamping plate to be turned over synchronously. According to the embodiment, the battery pack without glue injection can be freely overturned through the overturning piece of the overturning mechanism, and when the overturning piece is located at the battery glue injection position, glue injected out of the glue injection mechanism flows into a gap between a battery module of the battery pack without glue injection and a battery box under the action of gravity. Therefore, other external force or tools are avoided, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of lithium batteries, and in particular to a glue injection device. Background Art

[0002] A battery pack consists of a battery module and a battery box that holds it. There's a small gap between the battery module and the inner wall of the box. This gap needs to be filled with potting compound to secure the battery module. The smaller the gap, the more difficult it is to fill.

[0003] In the related art, manual glue injection is adopted, which is difficult to operate and has low working efficiency. Utility Model Content

[0004] The present application hopes to provide a glue injection device, which is at least used to replace manual glue injection and improve glue injection efficiency.

[0005] The utility model provides a glue injection device, comprising: a glue injection mechanism, a battery fixing mechanism, and a flipping mechanism;

[0006] The glue injection mechanism includes a glue injection seat and a glue injection tube connected to the glue injection seat;

[0007] The battery fixing mechanism includes a clamping plate;

[0008] The flipping mechanism includes a flipping piece, the glue injection seat and the clamping plate are arranged on the flipping piece, and the flipping piece switches between the battery fixing position and the battery glue injection position. The flipping piece enables the glue injection seat and the clamping plate to flip synchronously.

[0009] As an implementation method, the glue injection tube is used to be inserted into the gap between the battery module and the battery box of the battery pack;

[0010] The flip member is in the battery glue injection position, and the glue injection seat is arranged opposite to the clamping plate, wherein the glue injection seat is connected to the glue injection tube on a surface facing the clamping plate.

[0011] As an achievable manner, the glue injection tube and the clamping plate can be spaced apart from each other, or the glue injection tube and the clamping plate are relatively stationary; wherein,

[0012] The glue injection tube moves along the direction from the clamping plate to the glue injection seat to move away from the clamping plate; or the clamping plate moves along the direction from the glue injection to the clamping plate to move away from the glue injection tube.

[0013] As an achievable manner, the glue injection tube is provided with glue outlet holes along its length direction.

[0014] As an implementable manner, when the flip member is in the battery fixing position, the glue injection seat and the clamping plate clamp the battery pack that has not been glue-injected.

[0015] As an achievable manner, the clamping plate is movably connected to the flip member, and the movement direction of the clamping plate is perpendicular to the first direction, so that the clamping plate has a clamping position and an avoidance position.

[0016] Wherein, the first direction is parallel to the direction from the glue injection seat to the clamping plate; the clamping plate is in the clamping position, and the clamping plate and the glue injection seat are arranged opposite to each other to clamp the battery pack.

[0017] As an implementable manner, the glue injection mechanism is provided with at least one glue injection tube.

[0018] When the clamping plate is in the avoidance position, the glue injection tube cooperates with the battery module stopper.

[0019] As an implementable manner, the size of the glue injection tube in the second direction is equal to the distance between the gaps, and the second direction is perpendicular to the first direction;

[0020] The cross section of the glue injection tube matches the cross section of the guide matching area on the inner surface of the box wall of the battery box.

[0021] When the clamping plate is in the avoidance position, the glue injection tube is in guiding cooperation with the guiding cooperation area on the inner surface of the box wall of the battery box.

[0022] As an implementation method, a stop protrusion is provided on the surface of the glue injection seat facing the clamping plate.

[0023] When the clamping plate is in the avoidance position, the stop protrusion cooperates with the battery box stop.

[0024] As an achievable manner, the flip member is in the shape of an elongated strip, and has a first end and a second end along its length direction.

[0025] When the flip member is in the battery fixing position, the direction from the first end to the second end of the flip member is a vertical direction, and the second end faces the ground;

[0026] The flipping member flips from the battery fixing position to the battery glue injection position at a preset angle α, where 160°≤α≤200°.

[0027] In this embodiment, the flip member of the flip mechanism allows uninjected battery packs to flip freely. When the flip member is in the battery injection position, the injected glue flows into the gap between the battery modules and the battery box of the uninjected battery pack under the action of gravity. This eliminates the need for external forces or tools, helping to reduce production costs and improve production efficiency. When the flip member is in the battery fixing position and the clamping plate is in the avoidance position, the battery modules of the battery pack are placed on the injection seat. Among them, the glue injection tube cooperates with the battery module stopper to prevent the battery module from accidentally falling during the placement of the battery module. The glue injection tube has a limiting and constraining effect on the battery module; the guide matching area of ​​the battery box slides along the glue injection tube, and the glue injection tube has a guiding effect on the battery box, preventing the battery box from sliding during the placement process, so that the battery box and the battery module can ensure an accurate relative position, that is, the battery module is located in the middle of the battery box; the operation is simple and convenient, which reduces the difficulty of assembly between the battery box and the battery module; in addition, since the glue injection tube separates the battery box and the battery module, friction between the battery box and the battery module is avoided to damage the battery module; the battery module and the battery box remain stationary, and the glue injection tube gradually moves away from the battery module and the battery box, injecting glue into the gap between the battery module and the battery box, which helps to improve the glue injection efficiency. At the same time, by controlling the rising speed of the glue injection tube, the colloid can be evenly injected into the gap to ensure the connection stability between the battery box and the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Other features, objects and advantages of the present application will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0029] Figure 1 Schematic diagram of the structure of the glue injection device provided in the embodiment of the utility model Figure 1 ;

[0030] Figure 2 Schematic diagram of the structure of the glue injection device provided in the embodiment of the utility model Figure 2 ;

[0031] Figure 3-10 A schematic diagram of the motion of the glue injection device provided in an embodiment of the present utility model;

[0032] Figure 11 A schematic structural diagram of a glue injection mechanism provided in an embodiment of the present utility model;

[0033] Figure 12 An exploded schematic diagram of the glue injection mechanism provided in an embodiment of the present utility model;

[0034] Figure 13 A schematic structural diagram of a glue injection mechanism provided in an embodiment of the present utility model;

[0035] Figure 14 A schematic top view of a battery box provided in an embodiment of the present utility model;

[0036] Glue injection mechanism 10, glue injection seat 11, first glue injection plate 111, glue injection groove 1111, second glue injection plate 112, glue injection tube 12, stop protrusion 13, glue injection bucket 14;

[0037] Battery fixing mechanism 20, clamping plate 21;

[0038] Flip mechanism 30, flip member 31, inserting hole 311, hollow area 312, first end 313 of flip member, second end 314 of flip member, flip support frame 32, first rotating handle 33, guide column 34, rotating shaft sleeve 35;

[0039] Traction mechanism 40, chain 41, first support base 42, second support base 43, second rotating handle 44, second sprocket shaft 45, first sprocket shaft 46;

[0040] Battery pack 50 , battery module 51 , battery box 52 , and guide matching area 521 . DETAILED DESCRIPTION

[0041] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.

[0042] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] At least see Figures 1-14 As shown, the present invention provides an example of a glue injection device, including: a glue injection mechanism 10, a battery fixing mechanism 20 and a flipping mechanism 30.

[0044] The battery fixing mechanism 20 includes a clamping plate 21 , and the glue injection mechanism 10 includes a glue injection seat 11 and a glue injection tube 12 connected to the glue injection seat 11 .

[0045] like Figure 1 and Figure 2 As shown, the flip mechanism 30 includes a flip member 31, a flip support frame 32, a rotating shaft sleeve 35, a rotating shaft (not labeled due to obstruction), and a first rotating handle 33. The rotating shaft is mounted between the left and right flip support frames 32. One end of the rotating shaft is connected to the first rotating handle 33, which drives the rotating shaft to rotate. The rotating shaft sleeve 35 is mounted on the rotating shaft, and the rotation of the rotating shaft drives the rotating shaft sleeve 35.

[0046] The flip member 31 is in the shape of a long strip, for example, Figure 1 As shown in FIG. 2 , the flip member 31 is generally plate-shaped. The flip member 31 has a first end 313 and a second end 314 along its length. The shaft sleeve 35 is connected to the rearward surface of the flip member 31 and is located in the middle region between the first end 313 and the second end 314.

[0047] like Figure 3-Figure 6 As shown, the direction from the first end 313 to the second end 314 of the flip member 31 is vertical, and the second end 314 of the flip member 31 faces the ground. At this moment, the flip member 31 is in the battery fixing position.

[0048] The first rotating handle 33 is used to flip the flip member 31 from the battery fixed position to the battery injection position by a preset angle α, 160°≤α≤200°. The preset angle α can be 200°, 195°, 190°, 185°, 180°, 175°, 170°, 165°, or 160°.

[0049] Preferably, the preset angle α=180°, that is, Figure 3-10 As shown, the flip member 31 is flipped 180° from the battery fixing position to the battery injection position by rotating the first handle 33. Figures 8-10 As shown, the direction from the first end 313 to the second end 314 of the flip member 31 is vertical, and the first end 313 of the flip member 31 is facing the ground. At this moment, the flip member 31 is in the battery injection position. In this way, the flip member 31 switches between the battery fixing position and the battery injection position.

[0050] Of course, it is understandable that the flipping mechanism 30 can also be other structures, such as a gear rack flipping mechanism, which uses the cooperation of gears and racks to achieve the flipping of the flipping member 31; or a cam flipping mechanism, which uses the rotation or translation of the cam to achieve the flipping of the flipping member 31; or a pneumatic flipping mechanism, which uses pneumatic elements to achieve the flipping of the flipping member 31, etc., which are not listed one by one in this embodiment.

[0051] The flip member 31 causes the glue injection mechanism 10 and the battery securing mechanism 20 to rotate simultaneously. When the flip member 31 is in the battery securing position, the battery pack 50 is placed on the battery securing mechanism 20, which secures the battery. The flip member 31 then flips to the battery glue injection position, where the glue injection mechanism 10 injects glue into the gap between the battery modules 51 and the battery box 52 of the battery pack 50.

[0052] This arrangement allows the uninjected battery pack 50 to be freely flipped over by the flip member 31 of the flip mechanism 30. When the flip member 31 is in the battery injection position, the glue injected by the glue injection mechanism 10 flows under the action of gravity into the gap between the battery module 51 and the battery box 52 of the uninjected battery pack 50. This avoids the need for external forces or tools, helps reduce production costs, and improves production efficiency.

[0053] As an implementation method, the flip member 31 is in the battery fixing position, and the injection seat 11 and the clamping plate 21 clamp the battery pack 50.

[0054] like Figure 1 or Figure 2 As shown, the first direction is defined to be parallel to the direction from the injection seat 11 to the clamping plate 21. An inserting hole 311 is provided in the area near the first end 313 of the flip member 31. The shape of the inserting hole 311 matches the cross section of the clamping plate 21. The inserting hole 311 is inserted and matched with the clamping plate 21. The movement direction of the clamping plate 21 is perpendicular to the first direction. Figure 1 As shown in FIG. 2 , at the current moment, the clamping plate 21 moves in the front-to-back direction, which is perpendicular to the first direction.

[0055] like Figure 1-Figure 5 As shown, the inserting hole 311 is inserted into the clamping plate 21, and the clamping plate 21 is located at the rear side of the flip member 31. At this moment, the clamping plate 21 is located in the avoidance position; Figures 6-10 As shown, the insertion hole 311 is inserted into the clamping plate 21, and the clamping plate 21 is located in front of the flip member 31. At this moment, the clamping plate 21 is in the clamping position. In this way, the clamping plate 21 moves in the front-back direction to switch between the avoidance position and the clamping position.

[0056] Of course, it is understandable that the clamping plate 21 and the flip member 31 can be other active connections besides the plug-in fit, such as threaded connection, lock connection, etc. The clamping plate 21 can move in the front and rear directions to switch between the avoidance position and the clamping position.

[0057] The glue injection mechanism 10 includes a glue injection seat 11, a glue injection tube 12, and a glue injection bucket 14. When the clamping plate 21 is in the clamping position, the glue injection seat 11 and the clamping plate 21 are positioned opposite each other, and the two can clamp the battery pack 50. This ensures that the battery pack 50 is stably mounted on the clamping plate 21 when the flip member 31 switches between the battery fixing position and the battery glue injection position. Furthermore, the method by which the clamping plate 21 and the flip member 31 clamp the battery pack 50 helps simplify the structure of the battery fixing mechanism 20, avoids complexity, and helps reduce production costs.

[0058] A glue injection tube 12 is connected to the surface of the glue injection seat 11 facing the clamping plate 21 , and a glue injection funnel 14 is connected to the surface of the glue injection seat 11 facing away from the clamping plate 21 .

[0059] like Figure 3 or Figure 4 As shown, with the flip member 31 in the battery fixing position and the clamping plate 21 in the avoidance position, the battery module 51 of the battery pack 50 is placed on the glue injection seat 11. The glue injection tube 12 cooperates with the battery module 51 to prevent the battery module 51 from accidentally falling during placement, and the glue injection tube 12 has a limiting and restraining effect on the battery module 51.

[0060] At least Figures 1-4 As shown, the glue injection mechanism 10 is provided with two glue injection tubes 12. The two glue injection tubes 12 can be spaced apart in the left-right direction, and the distance between them in the left-right direction is equal to the length of the battery module 51. Alternatively, the two glue injection tubes 12 can be spaced apart in the front-to-back direction, and the distance between them in the front-to-back direction is equal to the width of the battery module 51. In this way, the two glue injection tubes 12 can limit and constrain the freedom of the battery module 51 in the left-right or front-to-back directions.

[0061] In some embodiments, the glue injection mechanism 10 is provided with a plurality of glue injection tubes 12, and the plurality of glue injection tubes 12 are arranged in a circumferential manner, and the distance between at least two of the plurality of glue injection tubes 12 in the axial direction is equal to the length of the battery module 51, or the distance between at least two of the plurality of glue injection tubes 12 in the front-to-back direction is equal to the width of the battery module 51. Alternatively, in other embodiments, the glue injection mechanism 10 is provided with a single glue injection tube 12, and the glue injection tube 12 and the stopper are provided on the glue injection seat 11. The glue injection tube 12 and the stopper can be arranged at intervals in the left-right direction, and the distance between the two in the left-right direction is equal to the length of the battery module 51; or the glue injection tube 12 and the stopper can be arranged at intervals in the front-to-back direction, and the distance between the two in the front-to-back direction is equal to the width of the battery module 51. In this way, the glue injection tube 12 and the stopper can limit and constrain the freedom of the battery module 51 in the left-right or front-to-back direction.

[0062] like Figure 5 As shown, the battery box 52 is then placed on the glue injection seat 11. The battery box 52 surrounds the battery module 51, and the battery module 51 is located in the middle of the battery box 52. The gap on the left side is equal to the gap on the right side. The glue injection tube 12 is guided and engaged with the guide mating area 521 on the inner surface of the box wall of the battery box 52.

[0063] like Figure 1 、 Figure 2 and Figure 14As shown, the dimensions of the glue injection tube 12 in the left-right direction (or the second direction, which is perpendicular to the first direction) are equal to the gap distance on the left or right side. A guide mating area 521 is provided on the inner surface of the battery box wall 52. The cross-sectional shape of the guide mating area 521 matches the cross-sectional shape of the glue injection tube 12. The cross-sectional shape of the guide mating area 521 can be semicircular, while the cross-sectional shape of the glue injection tube 12 can be circular; the cross-sectional shape of the guide mating area 521 can be isosceles trapezoidal, while the cross-sectional shape of the glue injection tube 12 can be isosceles trapezoidal, and so on. This embodiment does not impose any restrictions on this.

[0064] Since the size of the glue injection tube 12 in the left and right directions is equal to the gap distance on the left or right side, the guide matching area 521 of the battery box 52 slides along the glue injection tube 12, and the glue injection tube 12 has a guiding effect on the battery box 52, thereby preventing the battery box 52 from sliding during the placement process, so that the battery box 52 and the battery module 51 can be accurately positioned relative to each other, that is, the battery module 51 is located in the middle of the battery box 52; the operation is simple and convenient, which reduces the difficulty of assembling the battery box 52 and the battery module 51; in addition, since the glue injection tube 12 separates the battery box 52 and the battery module 51, friction between the battery box 52 and the battery module 51 is avoided to damage the battery module 51.

[0065] Furthermore, a stop protrusion 13 is provided on the surface of the glue injection seat 11 facing the clamping plate 21 , and the stop protrusion 13 is engaged with the battery box 52 for stopping.

[0066] like Figure 1 、 Figure 2 、 Figure 6 and Figure 7 As shown, two stop protrusions 13 are provided on the injection seat 11, spaced apart in the front-to-back direction. The distance between the two stop protrusions 13 in the front-to-back direction is equal to the width of the battery box 52. In this way, the stop protrusions 13 and the battery box 52 stop and cooperate to prevent the battery pack 50 to be injected from being separated from the clamping plate 21 and the injection seat 11 when the flip member 31 switches between the battery fixing position and the battery injection position.

[0067] like Figure 6 As shown, the clamping plate 21 then switches from the avoidance position to the clamping position, so that the clamping plate 21 and the glue injection seat 11 clamp the battery pack 50 to be injected with glue.

[0068] like Figure 7 and Figure 8 As shown, the flip member 31 starts to flip, so that the flip member 31 switches from the battery fixing position to the battery glue injection position. Figure 8 As shown, at the current moment, the colloid is poured into the colloid injection hopper 14 , and the colloid enters the gap between the battery module 51 and the battery box 52 from the colloid injection tube 12 .

[0069] Specifically, if Figure 1 As shown in the figure, the glue injection device further includes a traction mechanism 40.

[0070] The flip mechanism 30 further includes a guide post 34 connected to the second end 314 of the flip member 31 and arranged parallel to the flip member 31. The guide post 34 and the glue injection seat 11 are guided and engaged by a traction mechanism 40. The traction mechanism 40 provides power for the movement of the glue injection seat 11, while the guide post 34 limits the freedom of the glue injection seat 11, so that it can only move in a direction parallel to the first end 313 to the second end 314.

[0071] like Figure 1 and Figure 2 As shown, the traction mechanism 40 includes a first support base 42, a second support base 43, a chain 41, a first sprocket (not labeled due to obstruction), a second sprocket (not labeled due to obstruction), a first sprocket shaft 46, a second sprocket shaft 45, and a second rotating handle 44. The first support base 42 is connected to the front-facing surface of the flip member 31 and is close to its second end 314. The second support base 43 is connected to the rear-facing surface of the flip member 31 and is away from its second end 314. The first sprocket shaft 46 is connected to the first support base 42, and the first sprocket is mounted on the first sprocket shaft 46; the second sprocket shaft 45 is connected to the second support base 43, and the second sprocket is mounted on the second sprocket shaft 45. One end of the chain 41 is wrapped around and connected to the second sprocket, and the other end passes through the hollow area 312 on the flip member 31, bypasses the second sprocket, and finally connects to the injection seat 11.

[0072] Of course, it is understandable that the traction mechanism 40 can also be a wire rope-drum traction mechanism 40, a gear rack traction mechanism 40, or other suitable traction mechanisms 40, which are not listed one by one in this embodiment.

[0073] like Figure 9 and Figure 10 As shown, because the length of the glue injection tube 12 is slightly less than the depth of the battery box 52, the lower end of the glue injection tube 12 can be close to the bottom of the battery box 52. After the glue gradually fills the bottom of the box, the second rotating handle 44 drives the chain 41 to start moving the glue injection seat 11 upward, and then the glue injection tube 12 starts to move upward until the glue injection tube 12 approaches the opening of the battery box 52, and the glue injection tube 12 stops injecting glue.

[0074] In this way, the battery module 51 and the battery box 52 remain stationary, and the glue injection tube 12 gradually moves away from the battery module 51 and the battery box 52, so that glue is injected into the gap between the battery module 51 and the battery box 52, which helps to improve the glue injection efficiency. At the same time, by controlling the rising speed of the glue injection tube 12, the glue can be evenly injected into the gap to ensure the connection stability between the battery box 52 and the battery module 51.

[0075] In some embodiments, the glue injection tube 12 remains stationary, and the battery module 51 and the battery box 52 move downward together; or, the glue injection tube 12 has several glue outlet holes arranged at intervals along its length, and the glue injection tube 12, the battery module 51 and the battery box 52 all remain stationary.

[0076] As an implementable manner, a glue injection channel is provided on the glue injection seat 11 , the glue injection tube 12 is connected to one end of the glue injection channel, and the glue injection hopper 14 is connected to the other end of the glue injection channel.

[0077] like Figure 11-13 As shown, the glue injection seat 11 includes a first glue injection plate 111 and a second glue injection plate 112. The first glue injection plate 111 and the second glue injection plate 112 are stacked. The first glue injection plate 111 is recessed toward the second glue injection plate 112 to form a glue injection groove 1111. The glue injection groove 1111 is enclosed by the second glue injection plate 112 to form the aforementioned glue injection channel. The glue injection hopper 14 is connected to the first glue injection plate 111, and the glue injection tube 12 is connected to the second glue injection plate 112.

[0078] The materials of the glue injection tube 12 and the glue injection bucket 14 can be, but are not limited to, stainless steel or plastic.

[0079] The injection hose 12 can be formed by, but is not limited to, extrusion molding, casting molding, and injection molding.

[0080] It should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used above to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0081] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the utility model disclosed herein is not limited to the technical solutions formed by a specific combination of the aforementioned technical features, but also encompasses other technical solutions formed by any combination of the aforementioned technical features or their equivalents without departing from the concept of the utility model. For example, a technical solution formed by replacing the aforementioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A glue injection device, characterized in that: include: A glue injection mechanism (10), the glue injection mechanism (10) comprising a glue injection seat (11) and a glue injection tube (12) connected to the glue injection seat (11); A battery fixing mechanism (20), the battery fixing mechanism (20) comprising a clamping plate (21); A flip mechanism (30), the flip mechanism (30) comprising a flip member (31), the glue injection seat (11) and the clamping plate (21) being arranged on the flip member (31), the flip member (31) switching between a battery fixing position and a battery glue injection position, the flip member (31) enabling the glue injection seat (11) and the clamping plate (21) to flip synchronously.

2. The glue injection device according to claim 1, characterized in that: The glue injection tube (12) is used to be inserted into the gap between the battery module (51) and the battery box (52) of the battery pack (50); The flip member (31) is located at the battery glue injection position, and the glue injection seat (11) is arranged opposite to the clamping plate (21), wherein the glue injection seat (11) is connected to the glue injection tube (12) on a surface facing the clamping plate (21).

3. The glue injection device according to claim 2, characterized in that: The glue injection tube (12) and the clamping plate (21) can be spaced apart from each other, or the glue injection tube (12) and the clamping plate (21) are relatively stationary; wherein, The glue injection tube (12) moves in the direction from the clamping plate (21) to the glue injection seat (11) to move away from the clamping plate (21); or the clamping plate (21) moves in the direction from the glue injection seat (11) to the clamping plate (21) to move away from the glue injection tube (12).

4. The glue injection device according to claim 3, characterized in that: The glue injection tube (12) is provided with glue outlet holes along its length direction.

5. The glue injection device according to claim 2, characterized in that: When the flip member (31) is in the battery fixing position, the glue injection seat (11) and the clamping plate (21) clamp the battery pack (50) that has not been glue-injected.

6. The glue injection device according to claim 5, characterized in that: The clamping plate (21) is movably connected to the flip member (31), and the movement direction of the clamping plate (21) is perpendicular to the first direction, so that the clamping plate (21) has a clamping position and an avoidance position. The first direction is parallel to the direction from the glue injection seat (11) to the clamping plate (21); the clamping plate (21) is in the clamping position, and the clamping plate (21) and the glue injection seat (11) are arranged relative to each other to clamp the battery pack (50).

7. The glue injection device according to claim 6, characterized in that: The glue injection mechanism (10) is provided with at least one glue injection tube (12). When the clamping plate (21) is in the avoidance position, the glue injection tube (12) cooperates with the battery module (51) stopper.

8. The glue injection device according to claim 6, characterized in that: The size of the glue injection tube (12) in the second direction is equal to the distance between the gaps, and the second direction is perpendicular to the first direction; The cross section of the glue injection tube (12) matches the cross section of the guide fitting area (521) on the inner surface of the box wall of the battery box (52). When the clamping plate (21) is in the avoidance position, the glue injection tube (12) is in guiding engagement with a guiding engagement area (521) on the inner surface of the box wall of the battery box (52).

9. The glue injection device according to claim 6, characterized in that: A stop protrusion (13) is provided on the surface of the glue injection seat (11) facing the clamping plate (21). When the clamping plate (21) is in the avoidance position, the stop protrusion (13) engages with the battery box (52) in a stop manner.

10. The glue injection device according to any one of claims 1 to 9, characterized in that: The flip member (31) is in the shape of a long strip and has a first end (313) and a second end (314) along its length direction. When the flip member (31) is in the battery fixing position, the direction from the first end (313) to the second end (314) of the flip member (31) is a vertical direction, and the second end (314) faces the ground; The flipping member (31) flips from the battery fixing position to the battery glue injection position at a preset angle α, where 160°≤α≤200°.

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