Soft package battery test fixture

Abstract

The utility model discloses a soft package battery test fixture, including opening and closing mechanism and driving mechanism, the opening and closing mechanism includes two panel, two groups of slide bars and a plurality of conductive clips, the two groups of slide bars are slidably connected between the two panels along the length direction of the two panels, the panels are provided with slide grooves for the slide bars to slide, and the conductive clips are arranged on the slide grooves. The plurality of conductive clamps are sequentially arranged on the two groups of slide bars at intervals along the length direction of the two groups of slide bars, and the conductive clamps are used for being connected with tabs of the soft package battery; the beneficial effects of the utility model are that the driving mechanism can flexibly drive the slide bars to be close to or far away from each other, so that the distance between the conductive clamps can be adjusted according to the spacing requirements of soft package battery tabs with different specifications; the universality and the practicability of the equipment are enhanced, and the product quality and the production efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of hot pressing formation, concretely relates to a soft package battery test fixture. BACKGROUND

[0002] The soft package battery is a kind of lithium battery using aluminum-plastic composite film as packaging material, gradually becomes the powerful competitor of power battery market due to its high energy density, flexible design and better safety performance.The tab is a kind of assembly of soft package lithium ion battery, is used to lead out the positive and negative pole of battery, as the contact point when charging and discharging.The charging and discharging of soft package battery is mainly charged and discharged by hot pressing formation technology.The hot pressing formation technology of soft package battery can significantly improve battery performance and production efficiency by accurately controlling temperature, pressure and current in formation process.The existing hot pressing formation equipment is manually adjusted by artificial to realize the overlapping of conducting clamp and battery tab.

[0003] In the related art, a soft package battery test fixture is provided, which includes an insulating base plate, an insulating baffle, a plurality of through holes, a plurality of clamping bolts, a pair of tab and power line connection rows and a pair of charging and discharging equipment power lines, the soft package battery is placed between the insulating base plate and the insulating baffle, the clamping bolts pass through the insulating base plate and the insulating baffle through the through holes and clamp the soft package battery, the tab and power line connection row covers the surface of the tab and is fixed by the first fixing bolt, the charging and discharging equipment power line is connected with the tab and power line connection row through the second fixing bolt, so that the charging and discharging equipment power line is electrically connected with the tab, the charging and discharging equipment power line is connected with the voltage sampling line, and the pair of tab and power line connection row and the pair of charging and discharging equipment power line are symmetrically arranged.

[0004] For the related art in the above, there are the following defects: the fixture can only test one specification of soft package battery, the scope of application is limited, and manual fixing is required, the clamping force is not easy to control, and the soft package battery is easily damaged. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the above technical defects, and provides a soft package battery test fixture, which solves the technical problem that the existing fixture can only adapt to one specification of soft package battery.

[0006] To achieve the above technical purpose, the technical scheme of the utility model provides a soft package battery test fixture, which comprises an opening and closing mechanism, the opening and closing mechanism comprises two panels, two groups of slide bars and a plurality of conducting clamps, the two groups of slide bars are slidably connected between the two panels along the length direction of the two panels, the panel is provided with a sliding groove for the slide bar to slide, the plurality of conducting clamps are sequentially and spacedly arranged on the two groups of slide bars along the length direction of the two groups of slide bars, and the conducting clamp is used for being connected with the tab of the soft package battery.

[0007] A driving mechanism is configured to drive the two groups of slide bars to move closer to or further away from each other.

[0008] In some embodiments, the group of slide bars includes two slide bars, and the two slide bars are respectively connected to the top and bottom of the conductive clamp.

[0009] In some embodiments, the connecting assembly includes connecting seats connected to the end of the slide bars, and the adjacent connecting seats are connected by a connecting plate.

[0010] In some embodiments, the driving mechanism includes an electromagnetic proportional valve, a gas conveying pipe, a mounting plate, and a gas cylinder, the electromagnetic proportional valve and the mounting plate are arranged on a panel, the gas cylinder is arranged on the mounting plate, the inlet of the electromagnetic proportional valve is connected to a gas source through the gas conveying pipe, the outlet of the electromagnetic proportional valve is connected to the gas cylinder through the gas conveying pipe, and the piston rod of the gas cylinder is connected to the connecting plate.

[0011] In some embodiments, the gas cylinder is a double-acting gas cylinder, one piston rod of the double-acting gas cylinder is connected to the connecting plate, and the other piston rod of the double-acting gas cylinder is connected to the mounting plate.

[0012] In some embodiments, a magnetostrictive proportional electromagnetic valve is arranged in the gas cylinder, and the magnetostrictive proportional electromagnetic valve is configured to detect the position of the piston rod.

[0013] In some embodiments, the positioning mechanism includes two infrared detectors, and the two infrared detectors are respectively arranged on the two groups of slide bars.

[0014] In some embodiments, the conductive clamp is slidably connected to the slide bar along the length direction of the slide bar, and the slide bar is provided with a fixing assembly for fixing the conductive clamp.

[0015] In some embodiments, the fixing assembly includes a sliding block arranged on the conductive clamp, the sliding block is slidably connected to the slide bar along the length direction of the slide bar, the sliding block is provided with a threaded hole, a bolt is threadedly connected in the threaded hole, and the end of the bolt abuts against the slide bar.

[0016] In some embodiments, the sliding block is provided with a countersunk groove for accommodating the bolt.

[0017] Compared with the prior art, the beneficial effects of the utility model include that the driving mechanism can flexibly drive the slide bars to move closer to or further away from each other, so that the distance between the conductive clamps can be adjusted according to the spacing requirements of different specifications of soft package battery tabs, the versatility and practicality of the equipment are enhanced, and the product quality and production efficiency are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1It is the overall structure schematic view of the type changing device provided by the utility model,

[0019] Figure 2 It is the overall structure schematic view of the type changing device provided by the utility model, Figure 1 The partial structure enlarged view of A in the middle.

[0020] Mark explanation:

[0021] 1, opening and closing mechanism; 11, panel; 12, slide bar; 13, conducting clamp; 14, sliding groove; 2, drive mechanism; 21, electromagnetic proportional valve; 22, gas pipe; 23, mounting plate; 24, air cylinder; 25, electromagnetic valve; 3, positioning mechanism; 31, infrared detector; 4, connecting assembly; 41, connecting seat; 42, connecting plate; 5, fixed assembly; 51, sliding block; 52, bolt; 53, countersunk groove. Specific implementation

[0022] In order to make the utility model purposes, technical scheme and advantages more clearly, the following is combined with the drawings and examples, and the utility model is further described in detail.It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0023] The utility model provides a kind of soft package battery test fixture, its structure as shown in Figure 1 Figure 2 As shown in the figure, including opening and closing mechanism 1 and drive mechanism 2.

[0024] The opening and closing mechanism 1 includes two panels 11, two groups of slide bars 12 and multiple conducting clamps 13, two groups of slide bars 12 are slidably connected between the two panels 11 along the length direction of the two panels 11, the panel 11 is equipped with the sliding groove 14 for the slide bar 12 to slide, multiple conducting clamps 13 are sequentially and spaced apart on two groups of slide bars 12 along the length direction of two groups of slide bars 12, the conducting clamp 13 is used to be connected with the pole lug of the soft package battery.

[0025] The drive mechanism 2 is used to drive two groups of slide bars 12 to be close to or far away.

[0026] In use, drive mechanism 2 mainly plays the role of driving two groups of slide bars 12 to be close to or far away.By controlling the action of drive mechanism 2, the distance between two groups of slide bars 12 can be accurately adjusted, so that conducting clamp 13 can adapt to different spacing specifications of pole lug, to reach the adaptation effect of multiple specifications of soft package battery pole lug.

[0027] In the utility model, since drive mechanism 2 can flexibly drive slide bar 12 to be close to or far away, the distance between conducting clamp 13 can be adjusted according to the spacing requirement of different specifications of soft package battery pole lug, the versatility and practicality of equipment are enhanced, and product quality and production efficiency are improved.​

[0028] In order to improve the stability of the conductive clamp 13 when it moves, please refer to Figure 1 In a preferred embodiment, the set of slide bars 12 includes two slide bars 12, which are connected to the top and bottom of the conductive clamp 13 respectively, and the two slide bars 12 are connected through the connecting assembly 4.

[0029] In use, for each conductive clamp 13, one slide bar 12 is connected to the top and bottom respectively, and such a connection makes the conductive clamp 13 in a relatively stable suspended state between the two slide bars 12. When the drive mechanism 2 drives the slide bar 12 to move, the two slide bars 12 move synchronously, and since the conductive clamp 13 is connected to them respectively, the conductive clamp 13 will accurately move to the target position with the movement of the slide bar 12.

[0030] In order to improve the stability of the conductive clamp 13 when it moves, please refer to Figure 2 In a preferred embodiment, the connecting assembly 4 includes connecting seats 41 connected to the ends of the slide bars 12, and the adjacent connecting seats 41 are connected through connecting plates 42.

[0031] In use, the connecting assembly 4 composed of connecting seats 41 and connecting plates 42 improves the stability of the entire device. In the face of external interference, the connecting assembly 4 can connect each slide bar 12 into a stable frame structure.

[0032] In order to drive the slide bar 12 to move, please refer to Figure 2 In a preferred embodiment, the drive mechanism 2 includes an electromagnetic proportional valve 21, a gas conveying pipe 22, a mounting plate 23, and a gas cylinder 24, the electromagnetic proportional valve 21 and the mounting plate 23 are arranged on the panel 11, the gas cylinder 24 is arranged on the mounting plate 23, the inlet of the electromagnetic proportional valve 21 is connected in communication with the gas source through the gas conveying pipe 22, the outlet of the electromagnetic proportional valve 21 is connected in communication with the gas cylinder 24 through the gas conveying pipe 22, and the piston rod of the gas cylinder 24 is connected to the connecting plate 42.

[0033] In use, the gas source serves as the source of power, and compressed air is conveyed to the inlet of the electromagnetic proportional valve 21 through the gas conveying pipe 22. The electromagnetic proportional valve 21 is a device that can accurately control the flow of gas according to the size of the input electric signal. The compressed air flowing out of the outlet of the electromagnetic proportional valve 21 enters the gas cylinder 24 through the gas conveying pipe 22. The piston rod of the gas cylinder 24 is connected to the connecting plate 42, and when the piston moves, the piston rod will drive the connecting plate 42 to move together. Since the connecting plate 42 is connected to the slide bar 12 through the connecting assembly 4, this movement will be transmitted to the slide bar 12, making the slide bar 12 move along the slide groove 14 on the panel 11.

[0034] In order to improve the accuracy and flexibility of the control of the gas cylinder 24, please refer to Figure 2In a preferred embodiment, the cylinder 24 is a double-acting cylinder 24, one piston rod of which is connected to the connecting plate 42, and the other piston rod of which is connected to the mounting plate 23.

[0035] In use, as the two piston rods of the double-acting cylinder 24 are respectively connected to the connecting plate 42 and the mounting plate 23, the two piston rods work together during the movement of the piston, so that the force on the entire cylinder 24 is more balanced. This balanced force state helps to reduce the vibration and shaking of the cylinder 24 during operation, thereby improving the stability of the device. Moreover, by precisely controlling the flow of compressed air entering the two air inlets of the double-acting cylinder 24, the movement of the piston can be more finely adjusted, and the movement of the slide bar 12 can be more accurately controlled. This is of great significance for adapting to different distances of the tab, ensuring that the conductive clamp 13 can accurately contact the tab and complete the type conversion operation.

[0036] In order to further improve the accuracy of the control of the cylinder 24, please refer to Figure 2 In a preferred embodiment, a magnetostrictive proportional electromagnetic valve 25 is installed in the cylinder 24, which is used to detect the position of the piston rod.

[0037] In use, in the automatic type conversion device for multi-specification soft-pack battery tabs, it is necessary to accurately adjust the distance between the conductive clamps 13 according to the distance requirements of different tabs. The magnetostrictive proportional electromagnetic valve 25 can detect the position of the piston rod in real time, and the control system can accurately know the current position of the slide bar 12 according to the position information fed back by it, and then accurately control the cylinder 24 to continue or stop action, realize high-precision adjustment of the distance between the conductive clamps 13, and ensure accurate adaptation to different specifications of the tab, effectively avoiding problems such as poor contact of the tab caused by inaccurate distance adjustment.

[0038] In order to detect the position of the tab, please refer to Figure 2 In a preferred embodiment, the positioning mechanism 3 includes two infrared detectors 31, which are reflective laser sensors with model LR-T, and the two infrared detectors 31 are respectively arranged on the two groups of slide bars 12.

[0039] In use, there is a laser emitting source inside the reflective laser sensor, usually a semiconductor laser. When the sensor starts to work, the laser emitting source produces a high-intensity, high-directivity and high-monochromaticity laser beam under the excitation of an electrical signal according to the principle of laser generation through the process of stimulated emission. This laser beam is emitted from the emission window of the sensor and directed at the target object. After the emitted laser beam reaches the surface of the target object, it will be reflected. The reflected laser is received by a photodetector in the sensor. The photodetector works based on the photoelectric effect. When photons strike the photosensitive material of the photodetector, an electric current is formed under the action of an electric field, and the size of the electric current is related to the received light intensity. The sensor can determine the distance, position and other information of the target object by detecting the electric current signal generated by the photodetector.

[0040] For different specifications of soft pack battery modules, please refer to Figure 2 In a preferred embodiment, the conductive clamp 13 is slidingly connected to the slide bar 12 along the length direction of the slide bar 12, and the slide bar 12 is provided with a fixing assembly 5 for fixing the conductive clamp 13.

[0041] In use, in order to adapt to the position change of the soft pack battery tab in the length direction, the conductive clamp 13 can slide along the length direction of the slide bar 12, so that the conductive clamp 13 can be more accurately aligned with the tab. The fixing assembly 5 provided on the slide bar 12 is used to fix the conductive clamp 13 after it is moved to the appropriate position.

[0042] In order to fix the conductive clamp 13, please refer to Figure 2 In a preferred embodiment, the fixing assembly 5 includes a sliding block 51 provided on the conductive clamp 13, the sliding block 51 is slidingly connected to the slide bar 12 along the length direction of the slide bar 12, the sliding block 51 is provided with a threaded hole, and a threaded bolt 52 is threadedly connected in the threaded hole, and the end of the threaded bolt 52 abuts against the slide bar 12.

[0043] In use, when it is necessary to adjust the position of the conductive clamp 13 on the slide bar 12, a force is applied to the conductive clamp 13 along the length direction of the slide bar 12. When the conductive clamp 13 is pushed to move left or right, the sliding block 51 will smoothly slide on the surface of the slide bar 12, thereby driving the conductive clamp 13 to the desired position. When the conductive clamp 13 is moved to the appropriate position, the threaded bolt 52 is rotated, and the threaded bolt 52 moves downward along the threads of the threaded hole. As the threaded bolt 52 is continuously tightened, the pressure exerted by the end of the threaded bolt 52 on the slide bar 12 becomes larger and larger, thereby generating a larger friction force between the sliding block 51 and the slide bar 12. This friction force can prevent the sliding block 51 from sliding on the slide bar 12, thereby fixing the conductive clamp 13 at the current position.

[0044] In order to improve the flatness of the surface of the sliding block 51, please refer to Figure 2In a preferred embodiment, the sliding block 51 is provided with a countersunk groove 53 for accommodating the bolt 52.

[0045] In use, when the bolt 52 is installed on the sliding block 51, due to the presence of the countersunk groove 53, the head of the bolt 52 can be embedded into the countersunk groove 53, so that the outer surface of the sliding block 51 can remain relatively flat.

[0046] In order to better understand the present application, the following will be combined with the Figure 1 Figure 2 The working principle of the technical solution of the soft package battery test fixture is described in detail: the driving mechanism 2 mainly plays the role of driving the two groups of slide rods 12 to be relatively close or far away. By controlling the action of the driving mechanism 2, the distance between the two groups of slide rods 12 can be accurately adjusted, so that the conductive clamp 13 can adapt to the different spacing specifications of the tab, and the adaptation effect of the multi-specification soft package battery tab is achieved.

[0047] The specific embodiments of the present application described above do not constitute a limitation on the scope of protection of the present application. Any various other corresponding changes and modifications made according to the technical concept of the present application shall be included in the protection scope of the claims of the present application.​

Claims

1. A pouch battery test fixture, comprising: The utility model relates to a soft package battery test fixture, including: Opening and closing mechanism, the opening and closing mechanism includes two panels, two groups of slide bars and a plurality of conductive clips, two groups of slide bars are connected between two panels along the length direction of two panels, the panel is equipped with the slide groove for the slide of slide bar, a plurality of conductive clips are sequentially spaced on two groups of slide bars along the length direction of two groups of slide bars, and the conductive clip is used for connecting with the lug of soft package battery, and Driving mechanism is used for driving two groups of slide bars to be close or far away.

2. The pouch battery test fixture of claim 1, wherein, The group of slide bars includes two slide bars, and the two slide bars are connected to the top and bottom of the conductive clip respectively, and the two slide bars are connected through a connecting assembly.

3. The pouch battery test fixture of claim 2, wherein, The connecting assembly includes a connecting seat connected to the end of the slide bar, and the adjacent connecting seats are connected through a connecting plate.

4. The pouch battery test fixture of claim 3, wherein, The driving mechanism includes an electromagnetic proportional valve, a gas pipe, a mounting plate and a gas cylinder, the electromagnetic proportional valve and the mounting plate are arranged on the panel, the gas cylinder is arranged on the mounting plate, the inlet of the electromagnetic proportional valve is communicated with the gas source through the gas pipe, the outlet of the electromagnetic proportional valve is communicated with the gas cylinder through the gas pipe, and the piston rod of the gas cylinder is connected to the connecting plate.

5. The pouch battery test fixture of claim 4, wherein, The gas cylinder is a double-acting gas cylinder, one piston rod of the double-acting gas cylinder is connected to the connecting plate, and the other piston rod of the double-acting gas cylinder is connected to the mounting plate.

6. The pouch battery test fixture of claim 4, wherein, A magnetostrictive proportional electromagnetic valve is installed in the gas cylinder, and the magnetostrictive proportional electromagnetic valve is used to detect the position of the piston rod.

7. The pouch battery test fixture of claim 1, wherein, The test fixture further includes a positioning mechanism, and the positioning mechanism includes two infrared detectors.

8. The pouch battery test fixture of claim 1, wherein, The conductive clip is slidably connected to the slide bar along the length direction of the slide bar, and the slide bar is provided with a fixing assembly for fixing the conductive clip.

9. The pouch battery test fixture of claim 8, wherein, The fixing assembly includes a sliding block provided on the conductive clip, the sliding block is slidably connected to the slide bar along the length direction of the slide bar, the sliding block is provided with a threaded hole, a bolt is threadedly connected in the threaded hole, and the end of the bolt abuts against the slide bar.

10. The pouch battery test fixture of claim 9, wherein, The sliding block is provided with a countersunk groove for accommodating the bolt.

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