Battery pack tray tool, conveying system and battery production line

Abstract

The utility model discloses a battery pack tray tool, a conveying system and a battery production line, and the battery pack tray tool comprises a tray and a plurality of movable pins; a plurality of insulating cushion blocks for supporting the battery pack are arranged on the surface of the tray at intervals; the movable pin is arranged on the surface of the tray and comprises a base, a rotating shaft and a pin, a guide groove penetrating through the top face of the base is formed in the side wall of the base, the rotating shaft is arranged in the guide groove, and the pin is rotatably arranged in the guide groove through the rotating shaft and used for being inserted into the battery pack. According to the technical scheme, the pins can be switched to the vertical state or the horizontal state only by rotating the corresponding movable pins according to the mounting hole positions of the battery packs of different models, so that the battery packs of different models and sizes can be mounted in a matched manner by the pins, positioning pins of corresponding models do not need to be manually dismounted or mounted or different battery pack trays do not need to be manually manufactured, and the mounting efficiency is improved. And the production cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, and in particular to a battery pack tray tooling, conveying system and battery production line. Background Technology

[0002] With the rapid development of the new energy economy, the proportion of electric vehicles in automobile production and sales is increasing year by year, leading to a corresponding increase in demand for on-board power batteries. In the battery pack production process, battery pack tray fixtures are indispensable, used to support and protect the battery packs. The battery packs are fixed to the trays by positioning pins, ensuring that the relative position between the trays and the battery packs remains unchanged.

[0003] Currently, the locating pins on the tray fixtures used to secure battery packs are fixed and can only be matched and locked to the corresponding battery pack model. When the tray needs to be replaced with a battery pack of a different model or size, the locating pins need to be manually replaced with locating pins of the corresponding model or a new suitable tray needs to be made, which increases production costs. Utility Model Content

[0004] The main purpose of this utility model is to provide a battery pack tray fixture to solve the problem that the existing battery pack tray fixtures can only match and fix different models of battery packs by manually replacing the positioning pins or making a separate suitable tray, which increases production costs.

[0005] To achieve the above objectives, this utility model proposes a battery pack tray fixture, comprising:

[0006] Multiple movable pins are provided on the surface of the tray. Each movable pin includes a base, a pivot, and a pin. The side wall of the base has a guide groove that penetrates the top surface of the base. The pivot is located in the guide groove. The pin is rotatably positioned in the guide groove via the pivot and has an upright state and a flat state. When the pin is in the upright state, it is inserted into the battery pack. When the pin is in the flat state, it avoids the battery pack.

[0007] Optionally, a limiting groove is provided at the bottom of the guide groove; a sliding groove is provided on the pin, the sliding groove extends along the length direction of the pin, the rotating shaft passes through the sliding groove, and part of the pin is inserted into or disengaged from the limiting groove through the sliding groove.

[0008] Optionally, the movable pin includes a locking member that is movably disposed through the side wall of the base to extend into the guide groove. The pin has a locking hole that matches the locking member. When the pin is inserted into the battery pack, one end of the locking member extending into the guide groove engages with the locking hole to lock the pin.

[0009] Optionally, the locking component includes a locking part, an operating part, and an elastic element. The locking part is connected to the operating part, and the elastic element is disposed between the locking part and the operating part. The locking part is movably inserted through the side wall of the base, and the locking part is engaged with the locking hole by pulling or releasing the operating part.

[0010] Optionally, the tray is provided with an integrated test plug-in board, and the battery pack is electrically connected to an external testing station via a wiring harness through the integrated test plug-in board.

[0011] Optionally, a wheeled trolley is included, which is detachably connected to the underside of the tray.

[0012] Optionally, the tray has grooves on both sides for placing assembly parts, and the grooves extend along the thickness direction of the tray.

[0013] Secondly, this utility model also proposes a battery pack conveying system, comprising: the aforementioned battery pack pallet fixture; a battery pack, the battery pack being fixed on the battery pack pallet fixture; and an AGV, the AGV being guided to reach below the battery pack pallet fixture and lifting the battery pack pallet fixture to transport the battery pack pallet fixture along a set route.

[0014] Thirdly, this utility model also proposes a battery production equipment, including: an assembly station, an inspection station, and the aforementioned battery pack conveying system, wherein the battery pack moves between the assembly station and the inspection station via the battery pack conveying system.

[0015] In this invention, multiple movable pins are pre-set on the tray. The positions of these pins are adapted to different battery pack sizes. The pins can be rotated within the guide groove to be in an upright or horizontal position. Since the mounting pin hole positions differ for different battery packs, by rotating the pin corresponding to the battery pack's pin hole to an upright position and inserting it into the hole, while rotating the pins in other positions to a horizontal position to avoid obstruction, the battery pack can be secured. Thus, by simply rotating the pins, a single battery pack tray fixture can accommodate battery packs of different sizes, eliminating the need for manually replacing the corresponding positioning pins or fabricating a suitable tray, saving labor and time costs and improving production efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the battery pack tray tooling according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 The front view;

[0019] Figure 3 This is a schematic diagram of the structure of the movable pin in an embodiment of the present utility model;

[0020] Figure 4 This is a cross-sectional view of the movable pin in an embodiment of the present utility model;

[0021] Figure 5 This is an assembly state diagram of the battery pack tray tooling according to an embodiment of the present utility model.

[0022] Explanation of icon numbers:

[0023] 100-Battery pack tray fixture, 110-Pattern, 110a-Groove, 120-Insulating pad, 130-Modible pin, 131-Base, 131a-Guide groove, 131b-Limiting groove, 132-Rotating shaft, 133-Pin, 133a-Sliding groove, 133b-Locking hole, 134-Locking component, 1341-Locking part, 1342-Operating part, 140-Integrated test plug-in board, 150-Wheeled trolley, 200-Battery pack, 300-AGV.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] The main purpose of this utility model is to provide a battery pack tray fixture 100 to solve the problem that in the prior art, battery pack trays can only be matched and fixed by manually replacing the positioning pins or by making a separate suitable tray to match different models of battery packs, which leads to increased production costs.

[0028] See Figures 1 to 5 In one embodiment of this utility model, a battery pack tray fixture 100 includes a tray 110 and a plurality of movable pins 130. The top surface of the tray 110 is provided with a plurality of insulating pads 120 for supporting the battery pack 200 at intervals. The plurality of movable pins 130 are provided on the top surface of the tray 110. Each movable pin 130 includes a base 131, a rotating shaft 132 and a pin 133. The side wall of the base 131 is provided with a guide groove 131a that penetrates the top surface of the base 131. The rotating shaft 132 is provided in the guide groove 131a. The pin 133 is rotatably disposed in the guide groove 131a through the rotating shaft 132 and has an upright state and a flat state. When the pin 133 is in the upright state, the pin 133 is inserted into the battery pack 200. When the pin 133 is in the flat state, the pin 133 avoids the battery pack 200.

[0029] In this invention, multiple movable pins 130 are pre-set on the tray 110. The positions of the movable pins 130 are adapted to battery packs 200 of different sizes. The pins 133 in the guide groove 131a can be rotated to be in an upright or flat position. Since the mounting pin hole positions of different battery packs 200 are different, the battery pack 200 can be fixed by rotating the pins 133 corresponding to the pin holes of the battery pack 200 to the upright position and inserting them into the pin holes, while rotating the pins 133 in other positions to the flat position to avoid them. In this way, by simply rotating the pins 133, battery pack tray fixture 100 can be used to install battery packs 200 of different sizes without manually replacing the corresponding positioning pins or making a matching tray 110, saving labor and time costs and improving production efficiency.

[0030] Specifically, the tray 110 is provided with multiple insulating pads 120, which are square or rectangular in shape. The insulating pads 120 of different shapes are arranged at equal or unequal intervals. The insulating pads 120 can prevent current from being conducted between different components, thus achieving electrical insulation. At the same time, they provide support for the battery pack 200, ensuring that the battery pack 200 is placed horizontally on the tray 110 and preventing scratches on the bottom of the battery pack 200. Preferably, the insulating pads 120 have holes cut in the middle, which can reduce the weight of the workpiece, thereby reducing the load-bearing pressure on the tray 110 and saving material costs. This embodiment is provided with four movable pins 130. It should be noted that the number and placement of the movable pins 130 are determined according to the model of the battery pack 200. That is, the movable pins 130 are placed at corresponding positions on the tray 110 according to the pin hole positions on different sized battery packs 200. No limitation is made here. The movable pin 130 consists of a base 131, a rotating shaft 132, and a pin 133. The base 131 is fixed to the tray 110 by bolts. The side wall of the base 131 has a guide groove 131a that passes through the top surface of the base 131. The rotating shaft 132 is placed in the guide groove 131a. The pivot 132 passes through the pin 133, so the pin 133 can rotate within the guide groove 131a via the pivot 132 and has an upright state and a flat state. When the pin 133 is in the upright state, at least a portion of one end of the pin 133 extends beyond the top surface of the base 131 and can be inserted into the pin hole provided on the battery pack 200. When the pin 133 is in the flat state, the pin 133 is not higher than the top surface of the base 131 to avoid the battery pack 200. Preferably, in this embodiment, the pin 133 has 90° of freedom of movement within the guide groove 131a. Of course, in some other embodiments, the pin 133 can also be rotated within the guide groove 131a by providing a protruding locking block in the guide groove 131a to cooperate with the locking groove provided on the pin 133. The range of motion of the pin 133 depends on the form of the guide groove 131a. For example, if the guide groove 131a is provided to penetrate the base 131 radially, the pin 133 has a range of motion of 180°. As long as the pin 133 can be rotated to make it stand upright or lie flat, the embodiments of this utility model are not limited to this. All of the above are within the protection scope of this utility model.

[0031] When using the battery pack tray fixture 100 of this utility model, first determine the model of the battery pack 200 to be installed, then position the battery pack 200 on the tray 110. By rotating, the pin 133 corresponding to the pin hole of the battery pack 200 is rotated to the vertical position. At this time, the end of the pin 133 above the top surface of the base 131 extends into the pin hole of the battery pack 200 to limit and fix the battery pack 200. For movable pins 130 without pin holes, the pin 133 is rotated to the flat position to avoid the battery pack 200. In this way, the battery pack 200 is placed on the insulating pad 120 along the pin 133, completing the installation limit and ensuring that the relative position between the tray 110 and the battery pack 200 remains unchanged, so as to carry out the subsequent battery pack 200 assembly and testing processes.

[0032] See Figures 1 to 5 Furthermore, in one embodiment of the present invention, a limiting groove 131b is provided at the bottom of the guide groove 131a; a sliding groove 133a is provided on the pin 133, the sliding groove 133a extends along the length direction of the pin 133, the rotating shaft 132 passes through the sliding groove 133a, and part of the pin 133 is inserted into or detached from the limiting groove 131b through the sliding groove 133a. The limiting groove 131b extends to a certain depth along the height direction of the base 131. The shape of the limiting groove 131b matches that of the pin 133. When the pin 133 is in a vertical state, a part of the bottom of the pin 133 is placed in the limiting groove 131b to limit the pin 133 and prevent the pin 133 from swinging. Furthermore, a U-shaped sliding groove is provided on the pin 133. The rotating shaft 132 passes through the sliding groove to rotatably connect the pin 133 to the guide groove 131a. When it is necessary to change the pin 133 from a vertical state to a flat state, the pin 133 is pulled up, and the pin 133 is disengaged from the limiting groove 131b along the extension direction of the sliding groove. Then the pin 133 can rotate around the rotating shaft 132 to a flat state, and vice versa. This design ensures that the pin 133 is more stable when it is in an upright position by means of the limiting groove 131b, preventing it from shaking after the battery pack 200 is installed. The sliding groove 133a provides guidance for the movement of the pin 133, making the movement of the pin 133 more stable.

[0033] See Figures 1 to 5Furthermore, in one embodiment of the present invention, the movable pin 130 includes a locking member 134, which is movably disposed through the side wall of the base 131 to extend into the guide groove 131a. The pin 133 has a locking hole 133b that matches the locking member 134. When the pin 133 is inserted into the battery pack 200, one end of the locking member 134 extending into the guide groove 131a is engaged in the locking hole 133b to lock the pin 133. One side wall of the base 131 is set as a plane, and a through hole is opened on the plane. One end of the locking member 134 passes through the through hole and extends into the guide groove 131a. The locking member 134 is threaded to the side wall of the base 131. It can be understood that the length of the locking member 134 extending into the guide groove 131a can be adjusted by rotating the locking member 134. The pin 133 is provided with a locking hole 133b in the shape of a circular groove 110a. When the pin 133 is in the vertical position, the end of the locking member 134 extending into the guide groove 131a is locked into the locking hole 133b. With this setting, the pin 133 can only switch between the vertical and horizontal positions after manual unlocking, avoiding the pin 133 from changing its vertical or horizontal position due to other reasons without manual adjustment. It should be noted that the locking element 134 can be in the form of bolts, screws, pins, etc.; the shape of the locking hole 133b depends on the shape of the locking element 134, and can be set as a blind hole or a through hole. This utility model embodiment is not limited to this, and all of the above are within the protection scope of this utility model.

[0034] See Figures 1 to 5Furthermore, in one embodiment of this utility model, the locking member 134 includes a locking part 1341, an operating part 1342, and an elastic member. The locking part 1341 is connected to the operating part 1342, and the elastic member is disposed between the locking part 1341 and the operating part 1342. The locking part 1341 is movably inserted through the side wall of the base 131, and the locking part 1341 is engaged into the locking hole 133b by pulling or releasing the operating part 1342. Preferably, the locking member 134 is a self-locking indexing pin, and the operating part 1342 is a mushroom-head handle knob connected to the locking part 1341. The locking part 1341 consists of a pin body and a pin head. The pin body has external threads and is threadedly connected to the base 131. The pin head is the front end of the pin body and can extend or retract. The indexing pin has an internal elastic member (not shown in the figure), preferably a spring, which is used to restore the pin head to the protruding state by spring force when the handle is released. In use, pulling out the operating part 1342 retracts the locking part 1341, compressing the internal spring to release the lock on the pin 133. Then, rotating the operating part 1342 clockwise achieves self-locking; at this time, the locking part 1341 will not automatically reset. When it is necessary to lock the pin 133, rotating the operating part 1342 counterclockwise releases the self-locking, the elastic element releases pressure, and the locking part 1341 automatically pops out and engages with the locking hole 133b, completing the locking of the pin 133. By using a locking element 134 with an elastic reset function, the efficiency of switching states of the pin 133 can be improved, and the ease of use can be enhanced. It should be noted that the above rotation direction is only an example of this embodiment and is not limited. The locking element 134 can also take the form of a locking pin, a spring plunger, etc., as long as it can achieve locking and automatic reset of the pin 133. This utility model embodiment is not limited to this, and all of the above are within the protection scope of this utility model.

[0035] See Figures 1 to 5 Furthermore, in one embodiment of this utility model, an integrated test plug-in plate 140 is provided on the tray 110. The battery pack 200 is electrically connected to the external testing station via a wiring harness through the integrated test plug-in plate 140. The integrated test plug-in plate 140 is located on the side of the tray 110. The integrated test plug-in plate 140 is routed through the inside of the tray 110 and connects to the battery pack 200 via a transfer wiring harness on the tray 110. It automatically plugs into the testing plug-in mechanism of the testing station for testing. The integrated test plug-in plate 140 is compatible with tests such as liquid-cooled airtightness testing, whole-pack airtightness testing, EOL testing, and DCR testing. With this configuration, when testing the battery pack 200, the operator only needs to plug the wiring harness between the battery pack 200 and the integrated test plug-in plate 140 once, without having to repeatedly plug it in when switching test items, reducing repetitive manual work time and improving production efficiency.

[0036] See Figures 1 to 5Furthermore, in one embodiment of this utility model, a wheeled trolley 150 is included, which is detachably connected to the underside of the tray 110. The bottom of the tray 110 is provided with positioning pin holes for connection with the wheeled trolley 150. The tray 110 is inserted into the wheeled trolley 150 via positioning pins. The wheeled trolley 150 has two fixed wheels and two omnidirectional wheels, which also have a braking function. By setting up the wheeled trolley 150, the battery pack tray fixture 100 can be moved manually, giving it a moving structure. This eliminates the need for roller conveyors or similar methods, saving on line construction costs.

[0037] See Figures 1 to 5 Furthermore, in one embodiment of this utility model, the tray 110 has grooves 110a on both sides for placing assembly parts, and the grooves 110a extend along the thickness direction of the tray 110. The grooves 110a on both sides are used to place parts for assembling the battery pack 200, and adopt the SPS (Set Parts Supply) delivery mode. With this setting, in the battery pack 200 assembly process, only the assembled parts need to be taken out from the grooves 110a, without the need to set up a separate material cart, effectively reducing the part retrieval time and improving the assembly efficiency.

[0038] See Figures 1 to 5 Furthermore, in one embodiment of this utility model, multiple movable pins 130 are arranged diagonally on the tray 110 in pairs. The diagonal distribution of the movable pins 130 can provide support for the battery pack 200 from two directions, adapting to forces in multiple directions, ensuring that the battery pack 200 remains stable during assembly or stress testing, and the diagonal distribution can restrict the battery pack 200 from different angles, providing diagonal constraints and improving the positioning accuracy of the battery pack 200.

[0039] A second aspect of this application provides a battery pack conveying system, including the aforementioned battery pack pallet fixture 100, battery packs 200, and AGV 300 (Automated Guided Vehicle). The battery packs 200 are fixed to the battery pack pallet fixture 100. When the AGV 300 is guided to a position below the battery pack pallet fixture 100, it lifts the battery pack pallet fixture 100 to transport it along a set route. The AGV 300 automatically moves to a position below a wheeled trolley 150 guided by magnetic strips or lasers. After reaching its position, it lifts the wheeled trolley 150 and moves it to the corresponding workstation, thus achieving automatic transport of the battery pack pallet fixture 100. It should be noted that the battery pack conveying system can have multiple battery pack pallet fixtures 100 and AGV 300s to transport multiple battery packs 200. The beneficial effects of the battery pack conveying system of this application are equivalent to the beneficial effects of the aforementioned battery pack pallet fixture 100, and will not be repeated here.

[0040] A third aspect of this application provides a battery production line, including an assembly station, a testing station, and the aforementioned battery pack conveying system. The battery pack 200 moves between the assembly station and the testing station via the battery pack conveying system. A battery pack tray fixture 100 carries the battery pack 200 and moves between different assembly and testing stations in the battery production line via an AGV 300 to complete the assembly and testing of the battery pack 200. The testing stations include liquid-cooled airtightness testing, whole-pack airtightness testing, EOL testing, and DCR testing. The beneficial effects of the battery production line of this application are equivalent to the beneficial effects of the aforementioned battery pack tray fixture 100, and will not be repeated here.

[0041] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A battery pack tray fixture, characterized in that, For securing the battery pack, including: The tray has a plurality of insulating pads spaced apart on its surface to support the battery pack; Multiple movable pins are provided on the surface of the tray. Each movable pin includes a base, a pivot, and a pin. The side wall of the base has a guide groove that penetrates the top surface of the base. The pivot is located in the guide groove. The pin is rotatably positioned in the guide groove via the pivot and has an upright state and a flat state. When the pin is in the upright state, it is inserted into the battery pack. When the pin is in the flat state, it avoids the battery pack.

2. The battery pack tray fixture as described in claim 1, characterized in that, The bottom of the guide groove is provided with a limiting groove; the pin is provided with a sliding groove, the sliding groove extends along the length direction of the pin, the rotating shaft passes through the sliding groove, and part of the pin is inserted into or detached from the limiting groove through the sliding groove.

3. The battery pack tray fixture as described in claim 1, characterized in that, The movable pin includes a locking member that is movably inserted through the side wall of the base to extend into the guide groove. The pin has a locking hole that matches the locking member. When the pin is inserted into the battery pack, one end of the locking member extending into the guide groove engages with the locking hole to lock the pin.

4. The battery pack tray fixture as described in claim 3, characterized in that, The locking component includes a locking part, an operating part, and an elastic element. The locking part is connected to the operating part, and the elastic element is disposed between the locking part and the operating part. The locking part is movably inserted through the side wall of the base, and the locking part is engaged with the locking hole by pulling or releasing the operating part.

5. The battery pack tray fixture as described in claim 1, characterized in that, The tray is equipped with an integrated test plug board, and the battery pack is electrically connected to an external testing station via a wiring harness through the integrated test plug board.

6. The battery pack tray fixture as described in claim 1, characterized in that, It includes a wheeled trolley, which is detachably connected to the underside of the tray.

7. The battery pack tray fixture as described in claim 1, characterized in that, The tray has grooves on both sides for placing assembly parts, and the grooves extend along the thickness direction of the tray.

8. The battery pack tray fixture as described in claim 1, characterized in that, Multiple movable pins are arranged diagonally on the tray in pairs.

9. A battery pack delivery system, characterized in that, include: The battery pack tray fixture as described in any one of claims 1 to 8; The battery pack, which is fixed to the battery pack tray fixture; and An AGV, which is guided to the bottom of the battery pack pallet fixture, lifts the battery pack pallet fixture and transports it along a set route.

10. A battery production line, characterized in that, include: An assembly station, an inspection station, and a battery pack conveying system as described in claim 9, wherein the battery pack moves between the assembly station and the inspection station via the battery pack conveying system.

Images