Device for pressurizing module tray

Abstract

The utility model relates to the technical field of new energy module pressurization, in particular to a device for module tray pressurization, which comprises a module tray, the module tray is provided with an accommodating cavity with a top opening for loading battery cells, one side of the accommodating cavity is provided with a push plate capable of transversely moving inside and outside relative to the accommodating cavity, and the module tray moves on an external conveying mechanism step by step. A displacement mechanism is arranged on one side of the moving path of the machine tool, a lifting structure and a transverse moving structure are arranged on the displacement mechanism, the transmission output end of the displacement mechanism is connected with a pressurizing mechanism, and the lifting structure and the transverse moving structure can cooperatively work to displace the pressurizing mechanism to achieve machining and positioning. The pressurizing mechanism is provided with a pressurizing structure which is connected with and pressurizes the push plate, and a pressure monitoring device is further arranged between the pressurizing mechanism and the module tray. The device is beneficial to solving the problems that some existing pressurizing devices need to operate after modules and battery cells are transferred, the occupied area of equipment structures is large, and transferring risks exist.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy module pressurization, in particular to a device for pressurizing a module tray. Background Art

[0002] With the booming development of new energy vehicles, higher requirements are also put forward for the cruising range, safety and charging speed of new energy vehicles. In order to increase the cruising range of new energy vehicles, it is necessary to increase the energy density of power batteries, that is, to increase the energy density of battery cells. During the formation production process of high-energy-density battery cells, a large amount of gas will be generated. If the gas is not discharged in time, the shell of the battery cell will expand, which will affect the appearance and performance of the power battery.

[0003] In order to avoid the expansion of the battery cell shell, while sucking the gas generated during formation from the liquid injection port of the battery cell through a negative pressure device, it is also necessary to use a tray to restrain and pressurize the battery cell to limit the expansion of the battery cell, and the tray needs to use a special restraint and pressurization device for restraint and release.

[0004] For example, Chinese Patent CN202320329804.0 discloses a battery cell tray restraint device, including: a frame; a roller conveyor mechanism disposed within the frame; a roller lifting mechanism disposed within the frame, on the conveying side of the roller conveyor mechanism; two pressurizing and tightening mechanisms disposed within the frame and located in the middle of the roller conveyor mechanism; a positioning mechanism disposed within the frame and located in the middle of the two pressurizing and tightening mechanisms; a sensor group disposed within the frame; an industrial control computer disposed within the frame and connected to the roller conveyor mechanism, the roller lifting mechanism, the pressurizing and tightening mechanisms, the positioning mechanism, and the sensor group; and an uninterruptible power supply disposed within the frame and connected to the industrial control computer.

[0005] In the above technical solution, the pressurizing and rotating mechanism remains stationary during operation. It is necessary to transfer the tray loaded with battery cells through the conveying mechanism and lift it in place by the roller lifting mechanism, and then perform the pressurizing operation. This type of transfer device has a large floor area, a relatively large burden on the transfer device, and there is a transfer risk. Summary of the Utility Model

[0006] The utility model provides a device for pressurizing a module tray, which is beneficial to solving the problems that some existing pressurizing devices need to operate after the module and the battery cell are transferred, the equipment structure has a large floor area, and there is a transfer risk.

[0007] The utility model is implemented as follows:

[0008] A device for pressing a module tray, comprising a module tray, on which there is a cavity with an open top for loading battery cells. One side of the cavity is provided with a push plate that can horizontally move relative to the inside and outside of the cavity. The module tray moves step by step on an external conveying mechanism, and a displacement mechanism is arranged on one side of its moving path. The displacement mechanism is provided with a lifting structure and a horizontal moving structure. The transmission output end of the displacement mechanism is connected with a pressing mechanism. The lifting structure and the horizontal moving structure can cooperate to displace the pressing mechanism to achieve processing positioning. The pressing mechanism is provided with a pressing structure for connecting and pressing the push plate. A pressure monitoring device is also arranged between the pressing mechanism and the module tray.

[0009] On the basis of the above technical solution, the module tray includes a horizontally arranged bottom plate, on which there are two side stoppers and a rear stopper. The two side stoppers are distributed at intervals left and right. The rear stopper and the baffle are arranged at intervals front and back. The inner side surrounded by the side stoppers, the rear stopper and the baffle constitutes the cavity.

[0010] On the basis of the above technical solution, the bottom of the rear stopper is fixedly connected to the bottom plate. The bottom of the side stopper is movably connected to the bottom plate and is provided with a guiding and limiting structure facing left and right. The outer side end of the side stopper relative to the cavity is provided with an elastic restraint member, and the elastic restraint member can provide an elastic supporting force for the side stopper to horizontally move relative to the inside and outside of the cavity.

[0011] On the basis of the above technical solution, the displacement mechanism includes a bracket, on which there is a lifting driving member. The transmission output end of the lifting driving member is connected with a lifting plate that can vertically lift. The lifting plate is provided with a horizontal moving driving member, and the transmission output end of the horizontal moving driving member faces the side of the module tray and is connected with the pressing mechanism.

[0012] On the basis of the above technical solution, the pressing mechanism includes a base, which is fixedly connected to the transmission output end of the horizontal moving driving member. The base is provided with an extension plate, on which there is a pressing motor. The transmission output end of the pressing motor is connected with a socket. One side of the push plate is provided with a pressing lead screw, and the socket can be sleeved and clamped on the outer end of the pressing lead screw, constituting a pressing driving structure for the pressing motor to drive the push plate to move inwards relative to the cavity.

[0013] On the basis of the above technical solution, the extension plate is provided with a first plate body, a second plate body and a third plate body that are stacked in parallel on the side close to the module tray. There is a deviation correction module for position adjustment between adjacent plate bodies. The output end of the pressing motor passes through the first plate body, the second plate body and the third plate body and is connected with the socket. The socket is pivotally connected to the third plate body and is connected with the output end of the pressing motor through a universal joint.

[0014] On the basis of the above technical solution, the deviation rectification module includes a linear slide rail and a spring parallel to the sliding direction of the linear slide rail. The direction of the deviation rectification module between the first plate body and the second plate body is horizontal, and the direction of the deviation rectification module between the second plate body and the third plate body is vertical.

[0015] On the basis of the above technical solution, a first slide rail is provided between the bottom of the push plate and the bottom plate, and a second slide rail is provided at the bottom of the cavity. The sliding directions of the first slide rail and the second slide rail are parallel to the transverse movement direction of the push plate.

[0016] On the basis of the above technical solution, a decompression mechanism is further provided on one side of the displacement mechanism.

[0017] Compared with the prior art, the present utility model has at least the following advantages:

[0018] By providing a displacement mechanism for the operation of the pressurizing mechanism in the present utility model, the pressurizing mechanism is set as a movable part to reduce the movement burden of the module tray. Therefore, the pressurizing operation can be directly carried out on the module tray conveying line, avoiding the defect that an additional pressurizing equipment rack needs to be set, resulting in a large floor area of the structure, and also reducing the risk of high transmission failure rate of the module tray after loading the battery cells due to its large weight. That is, this structure is beneficial to solving the problems of some existing pressurizing devices that require the module and the battery cells to be transferred for operation, with a large floor area of the equipment structure and a risk of transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of a device for pressurizing a module tray in an embodiment;

[0021] Figure 2 For Figure 1 the top view;

[0022] Figure 3 For Figure 1 the structural diagram of the displacement mechanism in

[0023] Figure 4 It is a schematic structural diagram of a pressurizing mechanism in an embodiment;

[0024] Figure 5 It is a schematic structural diagram of a module tray in a state of loading battery cells in an embodiment;

[0025] Figure 6 It is a top view of the module tray in the no-load state in an embodiment.

[0026] Labels in the figure: 1. Module tray; 11. Side baffle; 12. Rear baffle; 13. Pusher plate; 14. Pressing screw rod; 15. Pressure sensor; 16. First slide rail; 17. Second slide rail; 18. Elastic restraint; 2. Displacement mechanism; 21. Lifting cylinder; 22. Lifting plate; 23. Transverse movement cylinder; 24. Bracket; 3. Pressing mechanism; 31. Base; 32. Extension plate; 33. First plate body; 34. Second plate body; 35. Third plate body; 36. Pressing motor; 37. Socket; 38. Transverse movement sensor; 39. Deviation correction module; 4. Decompression mechanism; 5. Jacking sensor; 6. Docking plug. Specific embodiments

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model.

[0028] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0029] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to an element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only embodiments.

[0030] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] See Figures 1 to 6, this embodiment discloses a device for pressing a module tray, which includes a module tray 1, a displacement mechanism 2, a pressing mechanism 3, a decompression structure, and a docking plug 6.

[0032] Among them, a cavity with an open top for loading battery cells is provided on the module tray 1. A push plate 13 capable of horizontally moving relative to the inside and outside of the cavity is provided on one side of the cavity. Combining Figure 5 As shown, the module tray 1 includes a horizontally arranged bottom plate. Two side stoppers 11 and a rear stopper 12 are provided on the bottom plate. The two side stoppers 11 are distributed at intervals left and right. The rear stopper 12 and the baffle are arranged at intervals front and back. The inner side surrounded by the side stoppers 11, the rear stopper 12, and the baffle forms the cavity. The side stopper 11 is a strip-shaped block structure, and the rear stopper 12 is a vertical plate structure.

[0033] Furthermore, the bottom of the rear stopper 12 is fixedly connected to the bottom plate. The bottom of the side stopper 11 is movably connected to the bottom plate and is provided with a left-right oriented guiding and limiting structure (slide rail structure). An elastic restraint 18 is provided at the outer end of the side stopper 11 relative to the cavity. Each elastic restraint 18 is composed of a fixed block and two springs. The fixed block is located outside. The lateral expansion and contraction of the spring enables the side stopper 11 to always maintain a tendency to move towards the inner side of the cavity within a certain stroke range. That is, the elastic restraint 18 can provide an elastic support force for the side stopper 11 to horizontally move relative to the inside and outside of the cavity. This makes the battery cells placed in the cavity more firm and reliable, thus facilitating the pressing operation.

[0034] To improve the horizontal movement flexibility, a first slide rail 16 is provided between the bottom of the push plate 13 and the bottom plate, and a second slide rail 17 is provided at the bottom of the cavity. The sliding directions of the first slide rail 16 and the second slide rail 17 are parallel to the horizontal movement direction of the push plate 13.

[0035] During use, after the module tray 1 loads the battery cells, it moves step by step on an external conveying mechanism (conveyor belt).

[0036] A displacement mechanism 2 is provided on one side of the movement path of the module tray 1. The displacement mechanism 2 is provided with a lifting structure and a horizontal movement structure. The transmission output end of the displacement mechanism 2 is connected to a pressing mechanism 3. The lifting structure and the horizontal movement structure can cooperate to displace the pressing mechanism 3 to achieve processing positioning.

[0037] Furthermore, the displacement mechanism 2 includes a bracket 24, on which a lifting driving member is provided. Specifically, the lifting driving member is a lifting cylinder 21, which is connected to an external air pressure device. Its telescopic rod is vertically downward, and the cylinder body is fixed on the bracket 24. The transmission output end (the end of the telescopic rod) of the lifting driving member is connected to a lifting plate 22 that can vertically lift. The lifting plate 22 is a horizontal plate structure. A transverse movement driving member is provided on the lifting plate 22. Specifically, the transverse movement driving member is a transverse movement cylinder 23, which is connected to an external air pressure device. Its telescopic rod is horizontally oriented towards the module tray 1, and the transmission output end of the transverse movement driving member faces the module tray 1 and is connected to the pressing mechanism 3.

[0038] Combined with Figure 4 As shown, the pressing mechanism 3 includes a base 31, which is fixedly connected to the transmission output end of the transverse movement driving member. An extension plate 32 is provided on the base 31. A rib plate is provided at the connecting corner of the base 31 and the extension plate 32, and the rib plate plays a role in enhancing the structural strength. A pressing motor 36 is provided on the extension plate 32. The transmission output end of the pressing motor 36 is connected to a socket member 37. Combined with Figure 5 or Figure 6 , a pressing lead screw 14 is provided on one side of the push plate 13. The socket member 37 can be sleeved and clamped on the outer end of the pressing lead screw 14. The outer contour of the pressing lead screw 14 and the card slot on the outer end of the socket member 37 can form a clamping structure, thus constituting an extrusion driving structure for the pressing motor 36 to drive the push plate 13 to move inward relative to the cavity.

[0039] Furthermore, a first plate body 33, a second plate body 34, and a third plate body 35 are arranged in parallel and stacked on the side of the extension plate 32 close to the module tray 1. A deviation rectifying module 39 for position adjustment is provided between adjacent plate bodies. The output end of the pressing motor 36 passes through the first plate body 33, the second plate body 34, and the third plate body 35 and is connected to the socket member 37. The socket member 37 is pivotally connected to the third plate body 35 and is connected to the output end of the pressing motor 36 through a universal joint.

[0040] Furthermore, the deviation rectifying module 39 includes a linear slide rail and a spring parallel to the sliding direction of the linear slide rail. The direction of the deviation rectifying module 39 between the first plate body 33 and the second plate body 34 is transverse, and the direction of the deviation rectifying module 39 between the second plate body 34 and the third plate body 35 is longitudinal. By providing a plurality of stacked plate bodies and two groups of deviation rectifying modules 39, the position of the socket joint can be flexibly moved slightly transversely or longitudinally during the pressing process, and the deviation rectifying module 39 can also play a role in tensioning and adjusting.

[0041] In addition, a lifting sensor 5 adapted to the operating height of the pressing mechanism 3 is provided on one side of the pressing station, so that after the module tray 1 moves to this position, it can be lifted and positioned slightly to establish a reference for the pressing position. This pressing station is located on the external conveyor line and is equipped with a corresponding lifting device, which is a prior art. The specific structure and the working principle on which the structure is based during operation will not be elaborated here (in other embodiments, there is no lifting and positioning, and the positioning is directly performed on the conveyor line).

[0042] In order to make the lateral movement of the pressing mechanism 3 more accurate, a lateral movement sensor 38 is also provided on the third plate body 35 to detect the lateral movement stroke of the socket part 37.

[0043] In order to improve the pressing effect, a pressure monitoring device is further provided between the pressing mechanism 3 and the module tray 1. This pressure monitoring device includes a pressure sensor 15 fixed on one side of the push plate 13 and a docking plug 6 fixed on one side of the socket part 37. When the pressing mechanism 3 moves laterally in place, the socket part 37 is fixedly sleeved on the pressing screw rod 14. At the same time, the docking plug 6 is inserted into the pressure sensor 15 to form a circuit closed loop, so that the subsequent pressing intensity can be monitored in real time, thereby enabling high-precision control of the pressing intensity and obtaining a better pressing effect.

[0044] In this embodiment, the decompression mechanism 4 is provided on both sides of the pressing mechanism 3, and the decompression mechanism 4 has the same structure as the pressing mechanism 3, but the motor rotation direction is opposite, and a lateral movement driving cylinder is configured, so as to be able to complete the decompression operation.

[0045] In the specific implementation process, after the module tray 1 moves to the pressing station, it is lifted and positioned. The displacement mechanism 2 accurately sleeves the socket part 37 on the pressing screw rod 14 through lifting and lateral movement. At this time, the pressure monitoring device is assembled and can monitor the pressing action. The pressing motor 36 rotates to drive the pressing screw rod 14 to rotate, so that the push plate 13 moves towards the battery side at a threshold speed to perform extrusion. When the threshold pressing intensity is reached, the displacement mechanism 2 controls the pressing mechanism 3 to reset. The pressed module tray 1 is again conveyed by the external conveyor line to the next station, where a steel belt is manually sleeved, and then the decompression is performed by the decompression mechanism 4.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A device for pressing a module tray, characterized in that, It includes a module tray (1) with a top-opening cavity for loading battery cells. A push plate (13) capable of horizontally moving in and out of the cavity is provided on one side of the cavity. The module tray (1) moves step by step on an external conveying mechanism. A displacement mechanism (2) is provided on one side of its moving path. The displacement mechanism (2) is provided with a lifting structure and a horizontal moving structure. The transmission output end of the displacement mechanism (2) is connected to a pressing mechanism (3). The lifting structure and the horizontal moving structure can cooperate to displace the pressing mechanism (3) to achieve processing positioning. A pressing structure for connecting and pressing the push plate (13) is provided on the pressing mechanism (3). A pressure monitoring device is also provided between the pressing mechanism (3) and the module tray (1).

2. The device for pressing a module tray as claimed in claim 1, wherein The module tray (1) includes a horizontally arranged bottom plate, on which two side stoppers (11) and a rear stopper (12) are provided. The two side stoppers (11) are distributed at intervals left and right. The rear stopper (12) and the baffle are arranged at intervals front and back. The inner sides surrounded by the side stoppers (11), the rear stopper (12) and the baffle form the cavity.

3. The device for pressing a module tray according to claim 2, wherein The bottom of the rear stopper (12) is fixedly connected to the bottom plate. The bottom of the side stopper (11) is movably connected to the bottom plate and is provided with a guiding and limiting structure in the left-right direction. An elastic restraint (18) is provided at the outer end of the side stopper (11) relative to the cavity. The elastic restraint (18) can provide an elastic supporting force for the side stopper (11) to horizontally move in and out of the cavity.

4. A device for pressing a module tray according to claim 1, characterized in that, The displacement mechanism (2) includes a bracket (24), on which a lifting driving member is provided. The transmission output end of the lifting driving member is connected to a lifting plate (22) capable of vertically lifting. A horizontal moving driving member is provided on the lifting plate (22). The transmission output end of the horizontal moving driving member faces the side of the module tray (1) and is connected to the pressing mechanism (3).

5. A device for pressing a module tray according to claim 4, characterized in that, The pressing mechanism (3) includes a base (31), which is fixedly connected to the transmission output end of the horizontal moving driving member. An extension plate (32) is provided on the base (31). A pressing motor (36) is provided on the extension plate (32). The transmission output end of the pressing motor (36) is connected to a socket member (37). A pressing lead screw (14) is provided on one side of the push plate (13). The socket member (37) can be sleeved and clamped on the outer end of the pressing lead screw (14) to form a pressing driving structure for the pressing motor (36) to drive the push plate (13) to move inwards relative to the cavity.

6. The device for pressing a module tray according to claim 5, wherein On the side of the extension plate (32) close to the module tray (1), a first plate body (33), a second plate body (34) and a third plate body (35) are arranged in parallel and stacked. A deviation correction module (39) for position adjustment is provided between adjacent plate bodies. The output end of the pressing motor (36) passes through the first plate body (33), the second plate body (34) and the third plate body (35) and is connected to the socket member (37). The socket member (37) is pivotally connected to the third plate body (35) and is connected to the output end of the pressing motor (36) through a universal joint.

7. The device for pressing a module tray according to claim 6, characterized in that, The deviation rectifying module (39) includes a linear slide rail and a spring parallel to the sliding direction of the linear slide rail. The direction of the deviation rectifying module (39) between the first plate body (33) and the second plate body (34) is transverse, and the direction of the deviation rectifying module (39) between the second plate body (34) and the third plate body (35) is longitudinal.

8. The device for pressing a module tray according to claim 1, characterized in that, A first slide rail (16) is provided between the bottom of the push plate (13) and the bottom plate, and a second slide rail (17) is provided at the bottom of the cavity. The sliding directions of the first slide rail (16) and the second slide rail (17) are parallel to the transverse movement direction of the push plate (13).

9. The device for pressing a module tray according to claim 1, wherein A decompression mechanism (4) is further provided on one side of the displacement mechanism (2).

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