A mechanism for positioning battery cells

Abstract

The present invention provides a mechanism for positioning battery cells, comprising: a discharge mechanism for placing battery cells; a bottom support mechanism connected to the discharge mechanism for supporting the discharge mechanism; and multiple positioning units disposed around the bottom support mechanism for cooperating with the discharge mechanism. When a battery cell is placed on the discharge mechanism, gravity pressure is generated, causing the discharge mechanism to press downward, driving the positioning units to move into contact with the battery cell and centrally position the battery cell. The discharge mechanism includes a discharge plate for placing the battery cell, the discharge plate having multiple weight-reducing holes formed therein, and multiple push blocks fixedly connected to the discharge plate for cooperating with the multiple positioning units to position the battery cell.

Description

Technical Field

[0001] The present invention relates to the technical field of structural design of functional components of new energy lithium-ion battery equipment, and in particular to a mechanism for positioning battery cells. Background Art

[0002] With the development of new energy vehicles, the safety and stability of battery cells, a crucial component of automotive power batteries, have drawn significant attention. Therefore, improving the quality of battery cell production is crucial. During the battery cell production process, multiple pieces of equipment collaborate to create a unified system, requiring multiple transfers and handling. This frequent handling and transporting can lead to poor positioning accuracy, directly impacting the quality of cells produced by various pieces of equipment in the cell assembly process. To ensure accurate positioning of incoming battery cells, equipment typically performs secondary positioning after they are transported into the equipment.

[0003] Currently, battery cell positioning typically involves using pneumatic cylinders to push and position the battery cells in both the long and short directions. This positioning method typically requires the collaboration of one or more pneumatic cylinders. Both require an additional air source as power, and the positioning mechanism design is costly. Summary of the Invention

[0004] The present invention is made to solve the above-mentioned problem, and its purpose is to provide a mechanism for positioning battery cells.

[0005] A mechanism for positioning battery cells has the following characteristics: a discharge mechanism for placing battery cells; a bottom support mechanism connected to the discharge mechanism for supporting the discharge mechanism; and multiple positioning units arranged around the bottom support mechanism for cooperating with the discharge mechanism. When battery cells are placed on the discharge mechanism, gravity pressure is generated, causing the discharge mechanism to press downward, driving the positioning units to move and contact the battery cells, thereby centering the battery cells.

[0006] The mechanism for positioning battery cells provided by the present invention may also have the following features: wherein the discharge mechanism includes: a discharge plate for placing battery cells, a plurality of weight-reducing holes being opened on the discharge plate, and a plurality of push blocks fixedly connected to the discharge plate for cooperating with a plurality of positioning units to position the battery cells.

[0007] The mechanism for positioning battery cells provided by the present invention may also have the following features: wherein, the bottom support mechanism includes: a fixed base plate, a plurality of support units, the support units include: a linear bearing seat, which is arranged on the fixed base plate, a support guide rod, which is slidably connected to the linear bearing seat, and the end of the support guide rod away from the linear bearing seat is fixedly connected to the discharge plate for supporting the discharge plate; a limit sleeve, which is arranged on the linear bearing seat, for limiting the extreme descending position of the discharge plate.

[0008] In the mechanism for positioning battery cells provided by the present invention, it may also have the following features: wherein, the positioning unit includes: at least one adjustment component, the adjustment component corresponds to the push block, and is used to cooperate in displacement under the gravity pressure of the battery cell, a positioning block mounting plate, which is connected to the adjustment component, and multiple adjustment positioning blocks, which are connected to the positioning block mounting plate, and are used to contact the battery cell after displacement to push the battery cell and center the battery cell.

[0009] The mechanism for positioning the battery cell provided by the present invention may also have the following features: wherein the adjustment component includes: an adjustment component bearing seat, connected to the fixed base plate, a guide rod, inserted on the adjustment component bearing seat, and slidingly connected to the adjustment component bearing seat, one end of the guide rod is connected to the positioning block mounting plate, a retaining spring is provided on the side of the adjustment component bearing seat away from the positioning block mounting plate, for maintaining the initial position of the guide rod, a connecting rod, rotatably connected to the other end of the guide rod through a pin shaft, a connecting rod shaft, one end of which is fixedly connected to the fixed base plate, and the other end is rotatably connected to the connecting rod.

[0010] The mechanism for positioning the battery cell provided by the present invention may also have the following features: a spring is provided on the guide rod, the spring is located between the bearing seat of the adjustment component and the positioning block mounting plate, and spring stop sleeves are provided at both ends of the spring, one spring stop sleeve abuts against the bearing seat of the adjustment component, and the other spring stop sleeve abuts against the positioning block mounting plate.

[0011] In the mechanism for positioning the battery cell provided by the present invention, it can also have the following features: a mating section is provided on the side of the connecting rod away from the guide rod, the mating section is an inclined surface cut along the axial direction of the connecting rod, the push block is conical, the mating section of the adjustment assembly matches the corresponding push block, and the push block abuts against the mating section.

[0012] The mechanism for positioning a battery cell provided by the present invention may also have the following feature: wherein the plurality of adjustment positioning blocks are fixedly connected or detachably connected to the positioning block mounting plate.

[0013] In the mechanism for positioning battery cells provided by the present invention, it may also have the following features: wherein, the discharge plate is arranged in a rectangular shape, the positioning unit is divided into a long side positioning unit and a short side positioning unit, a plurality of adjustment components are symmetrically connected on the positioning block mounting plate of the long side positioning unit, and at least one adjustment component is connected on the positioning block mounting plate of the short side positioning unit.

[0014] The mechanism for positioning the battery cell provided by the present invention may also have the following feature: a travel hole is provided at one end of the connecting rod close to the guide rod, and the pin is arranged at the travel hole.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] According to the mechanism for positioning battery cells involved in the present invention, multiple positioning units are arranged around the bottom support mechanism. By cooperating with the discharge mechanism, the battery cells placed on the discharge mechanism can complete their own centering positioning by their own gravity, without the need for an additional power source, and the overall structural design cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a first stereoscopic diagram of the mechanism for positioning battery cells in an embodiment of the present invention.

[0018] Figure 2 This is a second stereoscopic diagram of the mechanism for positioning battery cells in an embodiment of the present invention.

[0019] Figure 3 Schematic diagram of the structure of the mechanism for positioning the battery cell in an embodiment of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the discharge mechanism in an embodiment of the present invention.

[0021] Figure 5 2 is a schematic structural diagram of the bottom support mechanism in an embodiment of the present invention.

[0022] Figure 6 2 is a schematic structural diagram of a long side positioning unit in an embodiment of the present invention.

[0023] Figure 7 1 is a first structural diagram of a short side positioning unit in an embodiment of the present invention.

[0024] Figure 8 2 is a second structural diagram of the short side positioning unit in an embodiment of the present invention.

[0025] Description of main components symbols:

[0026] In the figure: 100, mechanism for positioning the battery cell; 1, discharge mechanism; 101, discharge plate; 102, push block; 2, bottom support mechanism; 201, fixed bottom plate; 202, linear bearing seat; 203, limit sleeve; 204, support guide rod; 3, positioning unit; 301, adjustment assembly; 3011, adjustment assembly bearing seat; 3012, guide rod; 3013, retaining spring; 3014, connecting rod; 3015, connecting rod shaft; 3016, spring; 3017, spring stop sleeve; 3018, mating section; 3019, pin; 3020, fixed retaining spring; 302, positioning block mounting plate; 303, adjustment positioning block. DETAILED DESCRIPTION

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the following embodiments and accompanying drawings specifically illustrate the mechanism for positioning battery cells of the present invention.

[0029] Figure 1 It is a first stereoscopic diagram of the mechanism for positioning battery cells in an embodiment of the present invention.

[0030] Figure 2 This is a second stereoscopic diagram of the mechanism for positioning battery cells in an embodiment of the present invention.

[0031] Figure 3 Schematic diagram of the structure of the mechanism for positioning the battery cell in an embodiment of the present invention.

[0032] like Figure 1-3 As shown, the mechanism for positioning the battery cells (hereinafter referred to as positioning mechanism) 100 in this embodiment includes a discharge mechanism 1 , a bottom support mechanism 2 and a plurality of positioning units 3 .

[0033] Figure 4 It is a structural schematic diagram of the discharge mechanism in an embodiment of the present invention.

[0034] like Figure 1-4 As shown, the discharge mechanism 1 is used for placing battery cells, and the discharge mechanism 1 includes a discharge plate 101 and a plurality of push blocks 102 .

[0035] The discharge plate 101 is rectangular and is used to place battery cells. A plurality of weight-reducing holes are provided on the discharge plate 101 .

[0036] The plurality of push blocks 102 are conical in shape and are fixedly connected to the discharge plate 101 , and are used to cooperate with the plurality of positioning units 3 to position the battery cells.

[0037] In this embodiment, six push blocks 102 are provided, two of which are located at two diagonal positions of the unloading plate 101 , and the remaining four are provided in the middle of the unloading plate 101 , and are symmetrically distributed along the length and width directions of the unloading plate 101 .

[0038] Figure 5 2 is a schematic structural diagram of the bottom support mechanism in an embodiment of the present invention.

[0039] like Figure 1-3 and Figure 5 As shown, the bottom support mechanism 2 is used to support the discharge mechanism 1, and the bottom support mechanism 2 includes a fixed bottom plate 201 and a plurality of support units.

[0040] The support unit includes a linear bearing seat 202 , a limiting sleeve 203 and a support guide rod 204 .

[0041] The linear bearing seat 202 is mounted on the fixed base plate 201. A support guide rod 204 is slidably connected to the linear bearing seat 202. The end of the support guide rod 204 away from the linear bearing seat 202 is fixedly connected to the unloading plate 101, thereby supporting the unloading plate 101. A limit sleeve 203 is mounted on the linear bearing seat 202 to limit the maximum descent position of the unloading plate 101.

[0042] Specifically, when the battery cells are placed on the discharge plate 101 , the gravity pressure of the battery cells drives the discharge plate 101 and the support guide rod 204 to move downward along the linear bearing seat 202 , and the discharge plate 101 can be lowered to the limit sleeve 203 at most.

[0043] Figure 6 2 is a schematic structural diagram of a long side positioning unit in an embodiment of the present invention.

[0044] Figure 7 1 is a first structural diagram of a short side positioning unit in an embodiment of the present invention.

[0045] Figure 8 2 is a second structural diagram of the short side positioning unit in an embodiment of the present invention.

[0046] like Figure 1-3 and Figure 6-8 As shown, multiple positioning units 3 are arranged around the fixed base plate 201 to cooperate with the push block 102. The battery cells are placed on the discharge plate 101 to generate gravity pressure, so that the discharge plate 101 and the push block 102 are pressed down, driving the positioning units 3 to move and contact the battery cells, and center the battery cells.

[0047] The positioning unit 3 includes at least one adjustment component 301 , a positioning block mounting plate 302 and a plurality of adjustment positioning blocks 303 .

[0048] The positioning block mounting plate 302 is connected to the adjustment assembly 301. The positioning unit 3 is divided into a long-side positioning unit and a short-side positioning unit. The long-side positioning unit is positioned to correspond to the two long sides of the unloading plate 101. The short-side positioning unit is positioned to correspond to the two short sides of the unloading plate 101. Two adjustment assemblies 301 are connected to the positioning block mounting plate 302 of the long-side positioning unit. These two adjustment assemblies 301 are symmetrical about the central axis of the long side of the unloading plate 101 and are arranged at right angles to the positioning block mounting plate 302. The positions of the two adjustment assemblies 301 correspond to the positions of the two push blocks 102 located in the middle of the unloading plate 101, close to the long-side positioning unit.

[0049] An adjustment assembly 301 is connected to the positioning block mounting plate 302 of the short-side positioning unit. This assembly is located in the middle of the positioning block mounting plate 302, at a right angle to it. The position of the adjustment assembly 301 corresponds to the position of the push block 102, located diagonally opposite the discharge plate 101 and close to the short-side positioning unit. The adjustment block 303 is fixedly or removably connected to the positioning block mounting plate 302. Driven by the adjustment assembly 301, it moves toward the discharge plate 101, where it contacts and pushes the battery cell, centering it.

[0050] The adjustment positioning block 303 is arranged in an L-shape, including a horizontal section and a vertical section that are vertically connected to each other. The horizontal section is connected to the positioning block mounting plate 302, and the vertical section is used to push the battery cell.

[0051] Specifically, the position of the positioning block 303 on the positioning block mounting plate 302 is determined based on the size of the battery cells. When the battery cells are of uniform size, the positioning block 303 can be directly fixedly connected to the positioning block mounting plate 302. When the battery cells are of varying sizes, the positioning block 303 is removably connected to the positioning block mounting plate 302, allowing for easy adjustment of the position of the positioning block 303 based on the size of the battery cells and subsequent securing with bolts.

[0052] Specifically, when the battery cell is placed on the discharge plate 101 , the gap between the battery cell and a surface of each adjustment and positioning block 303 close to the battery cell is approximately 5 mm.

[0053] The adjustment assembly 301 includes an adjustment assembly bearing seat 3011 , a guide rod 3012 , a connecting rod 3014 , a connecting rod shaft 3015 , a spring 3016 and a spring stop sleeve 3017 .

[0054] The adjusting assembly bearing seat 3011 is connected to the fixed base plate 201 .

[0055] The guide rod 3012 is inserted into the adjustment component bearing seat 3011 and is slidingly connected to the adjustment component bearing seat 3011. One end is connected to the positioning block mounting plate 302. A retaining spring 3013 is provided on the side of the adjustment component bearing seat 3011 away from the positioning block mounting plate 302 to maintain the initial position of the guide rod 3012.

[0056] A spring 3016 is sleeved on the guide rod 3012, and the spring 3016 is located between the adjustment component bearing seat 3011 and the positioning block mounting plate 302. Spring stop sleeves 3017 are provided at both ends of the spring 3016, one spring stop sleeve 3017 abuts against the adjustment component bearing seat 3011, and the other spring stop sleeve 3017 abuts against the positioning block mounting plate 302.

[0057] Connecting rod 3014 is rotatably connected to the other end of guide rod 3012 via a pin 3019. A travel hole is defined on the end of connecting rod 3014 near guide rod 3012, while a through hole is defined on the end of guide rod 3012 near connecting rod 3014. Pin 3019 extends through both the travel hole and the through hole. A retaining spring 3020 is provided on pin 3019, located below guide rod 3012 to prevent pin 3019 from loosening and falling off due to rotation.

[0058] A mating section 3018 is provided on the side of the connecting rod 3014 away from the guide rod 3012. The mating section 3018 is an inclined surface cut along the axial direction of the connecting rod 3014. The mating section 3018 of the adjustment component 301 matches the corresponding push block 102, and the push block 102 abuts against the mating section 3018.

[0059] One end of the connecting rod shaft 3015 is fixedly connected to the fixed base plate 201 , and the other end is rotatably connected to the connecting rod 3014 .

[0060] Working principle: Place the battery cell on the discharge plate 101. The gravity of the battery cell itself presses the discharge plate 101 downward, driving the push block 102 to press downward.

[0061] After the push block 102 is pressed down, the connecting rod 3014 is pushed to rotate with the connecting rod shaft 3015 as the rotating axis. Wherein, the matching section 3018 rotates in the direction close to the positioning block mounting plate 302, and the end of the connecting rod 3014 close to the guide rod 3012 rotates in the direction away from the positioning block mounting plate 302.

[0062] The connecting rod 3014 rotates to drive the guide rod 3012 to move toward the discharge plate 101, and the spring 3016 is compressed. The guide rod 3012 drives the positioning block mounting plate 302 and the adjustment positioning block 303 to move toward the battery cell and contact the battery cell, thereby centering the battery cell and allowing subsequent operations to be performed on the battery cell.

[0063] When the operation is completed, the battery cell is taken out, and the spring 3016 is no longer under force and resets, driving the guide rod 3012 to move away from the discharge plate 101 until the guide rod 3012, the positioning block mounting plate 302 and the adjustment positioning block 303 return to their initial positions.

[0064] The guide rod 3012 drives the connecting rod 3014 to rotate about the connecting rod shaft 3015. The matching section 3018 rotates in a direction away from the positioning block mounting plate 302, and the end of the connecting rod 3014 close to the guide rod 3012 rotates in a direction close to the positioning block mounting plate 302.

[0065] The mating section 3018 rotates to push the push block 102 upward, driving the discharge plate 101 to rise to the initial position.

[0066] Functions and Effects of the Embodiments

[0067] The mechanism 100 for positioning a battery cell according to the present invention has the following beneficial effects:

[0068] Multiple positioning units 3 are arranged around the bottom support mechanism 2. By cooperating with the discharge mechanism 1, the battery cells placed on the discharge mechanism 1 can complete their own centering positioning by their own gravity, without the need for an additional power source, and the overall structural design cost is reduced.

[0069] The discharge plate 101 is provided with a plurality of weight-reducing holes, which reduce the force loss when the spring 3016 drives the discharge plate 101 to reset, thereby extending the service life of the spring 3016 .

[0070] The positioning block mounting plate 302 is connected to the adjustment assembly 301. Two adjustment assemblies 301 are symmetrically connected to the positioning block mounting plate 302 of the long side positioning unit to improve the stability of the positioning block 303 when positioning the battery cell.

[0071] A retaining spring 3013 is provided on the side of the adjustment assembly bearing seat 3011 away from the positioning block mounting plate 302 to maintain the initial position of the guide rod 3012. A fixed retaining spring 3020 is provided on the pin 3019, and the fixed retaining spring 3020 is located below the guide rod 3012 to prevent the pin 3019 from loosening and falling off due to rotation.

[0072] Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanism for positioning a battery cell, characterized in that: include: A discharge mechanism for placing battery cells; A bottom supporting mechanism, connected to the discharge mechanism and used to support the discharge mechanism; Multiple positioning units are arranged around the bottom support mechanism and are used to cooperate with the discharge mechanism. The battery cell is placed on the discharge mechanism to generate gravity pressure, causing the discharge mechanism to press down, driving the positioning units to move and contact the battery cell, and centering the battery cell. Wherein, the discharging mechanism includes: The discharge plate is used to place the battery cells. The discharge plate is provided with a plurality of weight-reducing holes. A plurality of push blocks are fixedly connected to the discharge plate and are used to cooperate with the plurality of positioning units to position the battery cells. Wherein, the bottom support mechanism includes: Fixed bottom plate, A plurality of support units, each of the support units comprising: A linear bearing seat is provided on the fixed base plate. A support guide rod is slidably connected to the linear bearing seat, and one end of the support guide rod away from the linear bearing seat is fixedly connected to the discharge plate for supporting the discharge plate; The limiting sleeve is provided on the linear bearing seat and is used to limit the ultimate descending position of the unloading plate. Wherein, the positioning unit includes: At least one adjustment component, the adjustment component corresponds to the push block and is used to cooperate with the displacement under the gravity pressure of the battery cell, Positioning block mounting plate, connected to the adjustment assembly, A plurality of adjustment and positioning blocks are connected to the positioning block mounting plate and are used to contact the battery cell after the displacement and push the battery cell to center the battery cell. Wherein, the adjustment component includes: Adjust the bearing seat of the assembly and connect it to the fixed base plate. A guide rod is inserted into the bearing seat of the adjustment component and is slidably connected to the bearing seat of the adjustment component. One end of the guide rod is connected to the positioning block mounting plate. A retaining spring is provided on the side of the adjustment component bearing seat away from the positioning block mounting plate to maintain the initial position of the guide rod. The connecting rod is rotatably connected to the other end of the guide rod through a pin. The connecting rod shaft has one end fixedly connected to the fixed base plate and the other end rotatably connected to the connecting rod.

2. The mechanism for positioning a battery cell according to claim 1, characterized in that: in, A spring is sleeved on the guide rod, and the spring is located between the adjustment component bearing seat and the positioning block mounting plate. Spring stop sleeves are provided at both ends of the spring, one spring stop sleeve abuts against the adjustment component bearing seat, and the other spring stop sleeve abuts against the positioning block mounting plate.

3. The mechanism for positioning a battery cell according to claim 1, characterized in that: in, A mating section is provided on the side of the connecting rod away from the guide rod. The mating section is an inclined surface cut along the axial direction of the connecting rod. The push block is conical. The mating section of the adjustment assembly matches the corresponding push block, and the push block abuts against the mating section.

4. The mechanism for positioning a battery cell according to claim 1, characterized in that: in, The plurality of adjustment and positioning blocks are fixedly connected or detachably connected to the positioning block mounting plate.

5. The mechanism for positioning a battery cell according to claim 1, characterized in that: in, The unloading plate is arranged in a rectangular shape. The positioning unit is divided into a long side positioning unit and a short side positioning unit. The positioning block mounting plate of the long side positioning unit is symmetrically connected with a plurality of the adjustment components. At least one adjustment component is connected to the positioning block mounting plate of the short side positioning unit.

6. The mechanism for positioning a battery cell according to claim 1, characterized in that: in, A travel hole is formed at one end of the connecting rod close to the guide rod, and the pin is arranged at the travel hole.

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