Battery hot-pressing formation clamp

Abstract

The utility model discloses a battery hot-pressing formation clamp, which relates to the technical field of lithium battery processing, comprises a first end plate and a second end plate, and is characterized in that a plurality of guide rods are fixedly connected between the first end plate and the second end plate, and a plurality of clamp components are arranged between the first end plate and the second end plate. The multiple clamp assemblies are slidably connected with the guide rod, and a pushing and pressurizing assembly is arranged on the first end plate. According to the lithium battery hot-pressing formation device, synchronous hot-pressing formation can be carried out on a plurality of lithium batteries by arranging the plurality of clamp assemblies, the hot-pressing groove, the heating plate and the self-adaptive adjusting mechanism are arranged, so that the lithium battery hot-pressing formation device can adapt to placement of batteries with various thicknesses, and is high in broad spectrum and easy to use during use.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery processing technical field, concretely is a battery hot pressing formation fixture. BACKGROUND

[0002] With the rapid development of electronic products, lithium batteries as an important energy storage device, its application range is more and more widely, covers from smart mobile phone, tablet computer etc. Small electronic equipment to electric vehicle, energy storage power station etc. Large application field. In the production process of lithium battery, hot pressing formation is a key link, and it plays a vital role for the performance and quality of battery.

[0003] Traditional lithium battery hot pressing formation fixture can usually only carry out hot pressing operation to single battery, and this is relatively low in large-scale production. In order to meet the growing market demand, production enterprises often need to invest a lot of time and equipment resources, resulting in high production cost. Moreover, this single battery hot pressing mode is difficult to guarantee the process parameter consistency of each battery in the hot pressing formation process, thereby affecting the overall performance and quality stability of battery, for example, it can cause the capacity, charge-discharge efficiency and cycle life etc. Performance index of battery appears large difference.

[0004] In addition, the existing hot pressing formation fixture is poor in adaptability when facing lithium batteries of different thicknesses. Due to the influence of production process and raw materials etc. of lithium battery, even if the batteries produced in the same batch, the thickness may exist certain deviation. And the traditional fixture cannot effectively adaptively adjust according to the actual thickness of battery, which can cause excessive hot pressing for thinner batteries in the hot pressing process, damage the internal structure of battery, and the thicker batteries can not be hot pressed sufficiently, and the expected formation effect cannot be achieved. This not only reduces the yield of products, but also increases the workload of later detection and screening, further increases the production cost and production cycle.

[0005] Therefore, it is necessary to provide a battery hot pressing formation fixture. UTILITY MODEL CONTENT

[0006] The utility model provides a battery hot pressing formation fixture, solves the problem raised in the above background art.

[0007] In order to realize the above object, the utility model provides the following technical scheme:

[0008] A battery hot pressing formation fixture, comprising a first end plate and a second end plate, characterized by a plurality of guide rods fixedly connected between the first end plate and the second end plate, a plurality of clamp assemblies are arranged between the first end plate and the second end plate, the plurality of clamp assemblies are slidably connected with the guide rods, and a pushing and pressing assembly is arranged on the first end plate.

[0009] The clamp assembly comprises a carrier plate, a plurality of guide seats are fixedly connected to the outer side of the carrier plate, a plurality of guide rods are respectively penetrated through the plurality of guide seats and are in sliding connection with the plurality of guide seats, a hot-pressing groove is formed in each side of each carrier plate, and a heating plate is arranged on one side of each hot-pressing groove; and a self-adapting adjusting mechanism is connected between the heating plate and the carrier plate.

[0010] The self-adapting adjusting mechanism comprises a slot formed in the side edge of the carrier plate, a plug rod is inserted into and in sliding connection with the slot, a second spring is fixedly connected between the end of the plug rod and the end in the slot, and the end of the plug rod away from the second spring extends out of the slot and is fixedly connected with the heating plate.

[0011] As a preferred technical scheme of the utility model, first springs are fixedly connected between the adjacent two guide seats.

[0012] As a preferred technical scheme of the utility model, spring accommodating grooves are formed in the side edges of the guide seats, and the end of the first spring is located in the spring accommodating groove.

[0013] As a preferred technical scheme of the utility model, the pushing and pressing assembly comprises a hydraulic rod fixedly arranged on the first end plate, and a pressing plate is fixedly connected to the telescopic end of the hydraulic rod.

[0014] As a preferred technical scheme of the utility model, a sensor assembly is fixedly arranged between the pressing plate and the hydraulic rod.

[0015] As a preferred technical scheme of the utility model, the sensor assembly comprises a pressure sensor.

[0016] The utility model has the advantages that the utility model can simultaneously hot-press and form a plurality of lithium batteries through the plurality of clamp assemblies, the hot-pressing groove, the heating plate and the self-adapting adjusting mechanism can adapt to batteries of various thicknesses, the utility model has strong broad-spectrum and is easy to use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the battery hot-pressing and forming clamp.

[0018] Figure 2 It is a front view of the battery hot-pressing and forming clamp.

[0019] Figure 3 It is a structure schematic view of the clamp assembly in the battery hot-pressing and forming clamp.

[0020] Figure 4 It is a structure schematic view of the self-adapting adjusting mechanism in the battery hot-pressing and forming clamp.

[0021] In the figure: 1, first end plate; 2, second end plate; 3, guide rod; 4, clamp assembly; 5, first spring; 6, hydraulic rod; 7, pressing plate; 8, carrier plate; 9, guide seat; 10, hot pressing groove; 11, heating plate; 12, insertion slot; 13, second spring; 14, insertion rod; 15, sensor assembly. DETAILED DESCRIPTION

[0022] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0023] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model in a specific orientation, structure and operation, and therefore cannot be understood as limiting the utility model.

[0024] Please refer to Figures 1-4 A battery hot pressing formation clamp, comprising a first end plate 1 and a second end plate 2, a plurality of guide rods 3 are fixedly connected between the first end plate 1 and the second end plate 2, a plurality of clamp assemblies 4 are arranged between the first end plate 1 and the second end plate 2, the plurality of clamp assemblies 4 are slidably connected with the guide rods 3, and a pushing and pressing assembly is arranged on the first end plate 1;

[0025] The clamp assembly 4 comprises a carrier plate 8, a plurality of guide seats 9 are fixedly connected to the outer side of the carrier plate 8, the plurality of guide rods 3 respectively penetrate through the plurality of guide seats 9 and are slidably connected therewith, a hot pressing groove 10 is formed on each side of each carrier plate 8, and a heating plate 11 is arranged on one side of each hot pressing groove 10; and a self-adaptive adjusting mechanism is connected between the heating plate 11 and the carrier plate 8.

[0026] The self-adaptive adjusting mechanism comprises an insertion slot 12 formed on the side edge of the carrier plate 8, an insertion rod 14 is inserted and slidably connected in the insertion slot 12, a second spring 13 is fixedly connected between the end of the insertion rod 14 and the end in the insertion slot 12, and the end of the insertion rod 14 away from the second spring 13 extends out of the insertion slot 12 and is fixedly connected with the heating plate 11.

[0027] Wherein, the distance between the heating plate 11 and the carrier plate 8 in the force-free state is less than the width of the hot pressing groove 10.

[0028] First springs 5 are fixedly connected between adjacent two guide seats 9.

[0029] Spring receiving grooves are formed on the side edges of the guide seats 9, and the ends of the first springs 5 are located in the spring receiving grooves.

[0030] The pushing and pressing assembly comprises a hydraulic rod 6 fixedly arranged on the first end plate 1, and the telescopic end of the hydraulic rod 6 is fixedly connected with a pressing plate 7.

[0031] A sensor assembly 15 is fixedly arranged between the pressing plate 7 and the hydraulic rod 6.

[0032] The sensor assembly 15 comprises a pressure sensor.

[0033] In the implementation process of the utility model, multiple lithium batteries to be hot-pressed are sequentially placed in each hot-pressing groove 10, then the hydraulic rod 6 is controlled to start, the hydraulic rod 6 is elongated, the pressing plate 7 is driven to move, each carrier plate 8 is pushed, in the process of movement and mutual approaching of the carrier plates 8, the two heating plates 11 between the two adjacent carrier plates 8 are in contact, with the continuous movement of the carrier plates 8, the heating plates 11 are stressed to drive the insertion rods 14 to move into the insertion grooves 12, the heating plates 11 gradually approach the carrier plates 8, until the lithium batteries are pressed tightly by the heating plates 11, and then the hot-pressing treatment can be performed.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A battery hot-pressing formation fixture, comprising a first end plate (1) and a second end plate (2), characterized in that, Multiple guide rods (3) are fixedly connected between the first end plate (1) and the second end plate (2). Multiple clamping assemblies (4) are provided between the first end plate (1) and the second end plate (2). The multiple clamping assemblies (4) are slidably connected to the guide rods (3). A pushing and pressing assembly is provided on the first end plate (1). The clamp assembly (4) includes a carrier plate (8), and multiple guide seats (9) are fixedly connected to the outer side of the carrier plate (8). Multiple guide rods (3) pass through the multiple guide seats (9) and are slidably connected to them. Each carrier plate (8) has a hot press groove (10) on both sides. Each hot press groove (10) has a heating plate (11) on one side. An adaptive adjustment mechanism is connected between the heating plate (11) and the carrier plate (8). The adaptive adjustment mechanism includes a slot (12) with a side opening of a carrier plate (8), a rod (14) is inserted into and slidably connected in the slot (12), a second spring (13) is fixedly connected between the end of the rod (14) and the end inside the slot (12), and the end of the rod (14) away from the second spring (13) extends out of the slot (12) and is fixedly connected to the heating plate (11).

2. The battery hot-pressing formation fixture according to claim 1, characterized in that, A first spring (5) is fixedly connected between each of the two adjacent guide seats (9).

3. The battery hot-pressing formation fixture according to claim 2, characterized in that, The guide seat (9) has a spring storage groove on its side, and the end of the first spring (5) is located in the spring storage groove.

4. The battery hot-pressing formation fixture according to claim 1, characterized in that, The push and pressurization assembly includes a hydraulic rod (6) fixedly mounted on the first end plate (1), and a pressure plate (7) is fixedly connected to the telescopic end of the hydraulic rod (6).

5. The battery hot-pressing formation fixture according to claim 4, characterized in that, A sensor assembly (15) is fixed between the pressure plate (7) and the hydraulic rod (6).

6. The battery hot-pressing formation fixture according to claim 5, characterized in that, The sensor assembly (15) includes a pressure sensor.

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