A new energy battery heat insulation sheet vacuum hot pressing equipment

By designing a vacuum hot pressing device for heat insulation sheets of new energy batteries, negative pressure hot pressing is achieved by using linear movement and lifting mechanisms, which solves the problems of bubble removal and insufficient interlayer bonding strength of the heat insulation sheet and improves the high-temperature protection capability of the battery pack.

CN224392024UActive Publication Date: 2026-06-23ZHONGSHENG HUAYUE (ZHENGZHOU) INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHENG HUAYUE (ZHENGZHOU) INTELLIGENT TECH CO LTD
Filing Date
2025-07-25
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing technologies lack dedicated vacuum hot pressing equipment for heat insulation sheets of new energy batteries, which cannot effectively remove air bubbles and ensure the strength and density of interlayer bonding, resulting in insufficient local high-temperature protection of the battery pack.

Method used

A vacuum hot pressing device was designed, comprising a frame, a linear motion mechanism, a lifting mechanism, and a pressing mechanism. The workpiece is supported by a loading platform, the lifting mechanism drives the pressing mechanism to press against the loading platform, and a negative pressure environment is created in the sealed chamber for hot pressing. The device combines a heating plate and a mold plate to achieve efficient hot pressing of the heat insulation sheet.

Benefits of technology

This technology enables efficient vacuum hot pressing of heat insulation sheets for new energy batteries, eliminating air bubbles, enhancing interlayer bonding strength and density, and improving the local high-temperature protection capability of the battery pack.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224392024U_ABST
Patent Text Reader

Abstract

A new energy battery heat insulation sheet vacuum hot pressing equipment, including frame 1, the top of frame 1 is provided with linear motion mechanism 2, linear motion mechanism 2 is movably provided with loading table 3, loading table 3 is used to carry workpiece, frame 1 is also provided with lifting mechanism 4, lifting mechanism 4 is driven and connected with pressing mechanism 5 on lifting mechanism 4, pressing mechanism 5 is used for pressing fit with loading table 3, the side of frame 1 of linear motion mechanism 2 one end is provided with material taking mechanism 6 and discharging mechanism 7, relative to the prior art, the utility model includes the loading table for carrying and transferring material, the hot pressing equipment for cooperating with the loading table and the lifting mechanism for driving the hot pressing equipment to cooperate with the lifting, and the equipment for taking and discharging after hot pressing, realize the production line heat pressing processing of heat insulation sheet.
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Description

Technical Field

[0001] This utility model belongs to the field of hot pressing equipment, specifically relating to a vacuum hot pressing equipment for heat insulation sheets of new energy batteries. Background Technology

[0002] New energy vehicle batteries have high safety requirements, and the heat insulation sheet that is attached to the battery must have sufficient strength. Therefore, the heat insulation sheet needs to be vacuum hot-pressed to remove air bubbles, reduce heat convection and gas heat conduction, ensure interlayer bonding strength, optimize the density of the heat insulation sheet, and avoid "hot spots" caused by uneven local density. This is suitable for local high temperature protection of battery packs. Existing technology lacks vacuum hot-pressing equipment specifically for the production line of heat insulation sheets for new energy batteries. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a vacuum hot pressing device for heat insulation sheets of new energy batteries.

[0004] The purpose of this utility model is achieved in the following manner: a vacuum hot pressing device for heat insulation sheets of new energy batteries, including a frame 1, a linear moving mechanism 2 is provided on the top of the frame 1, a material carrier 3 is movably provided on the linear moving mechanism 2, the material carrier 3 is used to carry the workpiece, a lifting mechanism 4 is also provided on the frame 1, a pressing mechanism 5 is connected to the lifting mechanism 4 for lifting and pressing cooperation with the material carrier 3, and a material picking mechanism 6 and a material unloading mechanism 7 are provided on the side of the frame 1 at one end of the linear moving mechanism 2.

[0005] Furthermore, the linear movement mechanism 2 includes a guide rail 21 fixed to the top of the frame 1, the guide rail 21 being slidably connected to the loading platform 3, and the linear movement mechanism 2 also includes a first linear drive mechanism 22 disposed on the frame, the first linear drive mechanism 22 being driven and connected to the loading platform 3.

[0006] Furthermore, the loading platform 3 includes a support plate 31, a heat insulation plate 32, a heating plate 33, and a mold plate 34 that are fixedly connected from bottom to top, wherein: the bottom of the support plate 31 is fixedly connected to a slider 311 that cooperates with the guide rail 21; the heating plate 33 is embedded with a heating wire 331; and the top of the mold plate 34 is provided with a plurality of hot pressing grooves 341 for supporting the workpiece.

[0007] Furthermore, the lifting mechanism 4 includes a support base 41 fixedly connected to the frame 1, the bottom end of the guide rod 42 fixedly connected to the top of the support base 41, a support plate 43 fixedly connected to the top end of the guide rod 42, the cylinder body of the hydraulic cylinder 44 fixedly connected to the support plate 43, a hydraulic station 45 connected to the hydraulic cylinder 44 oil circuit fixedly connected to the top of the support plate 43, a lifting plate 46 fixedly connected to the output end of the hydraulic cylinder 44, a lifting plate 46 slidably connected to the guide rod 42, and a pressing mechanism 5 provided at the bottom of the lifting plate 46.

[0008] Furthermore, the pressing mechanism 5 includes a pressing plate 51 that mates with the top of the mold plate 34, and a sealing chamber 52 that is sleeved on the outside of the pressing plate 51. The sealing chamber 52 can be sleeved with the material carrier 3. The bottom end of at least one connecting column 53 is fixedly connected to the top of the pressing plate 51. The top end of the connecting column 53 passes through the sealing chamber 52 and is fixedly connected to the bottom end of the lifting plate 46. The cylinder body of the cylinder 48 is fixedly connected to the side of the lifting plate 46. The output end of the cylinder 48 is fixedly connected to the outer wall of the sealing chamber 52. One end of the suction pipe 54 is connected to the side of the sealing chamber 52. The other end of the suction pipe 54 passes vertically downward through the support base 41 and the frame 1 and is connected to the suction equipment.

[0009] Furthermore, the unloading mechanism 7 is a conveyor belt mechanism, with one end of the conveyor belt mechanism located to the side of one end of the guide rail 21; the material handling mechanism 6 includes a support frame 61 fixed on the frame 1, a second linear drive mechanism 62 fixedly connected to the support frame 61, a movable frame 63 fixedly connected to the output end of the second linear drive mechanism 62, a cylinder body of a second cylinder 64 fixedly connected to the movable frame 63, a suction cup bracket 65 fixedly connected to the output end of the second cylinder 64, and a suction cup 66 corresponding to the hot pressing groove 341 fixedly connected to the bottom of the suction cup bracket 65. Within the stroke range of the second linear drive mechanism 62, the suction cup bracket 65 can be located above the loading platform 3 near the conveyor belt mechanism, or it can be located above the conveyor belt mechanism.

[0010] Compared with the prior art, this utility model includes a material carrier platform for carrying and transferring materials, a hot pressing device for cooperating with the material carrier platform and a lifting mechanism for driving the hot pressing device to lift and lower, as well as a device for unloading and discharging materials after hot pressing, thereby realizing the production line hot pressing processing of heat insulation sheets. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of a vacuum hot pressing equipment for heat insulation sheets of new energy batteries;

[0012] Figure 2 This is a schematic diagram of the material loading platform;

[0013] Figure 3 This is a structural diagram of the lifting mechanism;

[0014] Figure 4 This is a structural diagram of the lifting mechanism and the pressing mechanism;

[0015] Figure 5 yes Figure 4 Enlarged image;

[0016] Figure 6 This is a schematic diagram of the pressing mechanism;

[0017] Figure 7 This is a schematic diagram of the bottom of the pressing mechanism;

[0018] Figure 8 This is a schematic diagram of the material handling mechanism.

[0019] Among them, rack 1,

[0020] Linear movement mechanism 2, guide rail 21, first linear drive mechanism 22;

[0021] Material loading platform 3, bearing plate 31, slider 311, heat insulation plate 32, heating plate 33, heating wire 331, mold plate 34, hot press groove 341;

[0022] 4. Lifting mechanism; 41. Support base; 42. Guide rod; 43. Support plate; 44. Hydraulic cylinder; 45. Hydraulic station; 46. Lifting plate; 47. Support platform; 48. Pneumatic cylinder.

[0023] Pressing mechanism 5, pressing plate 51, second heating plate 511, pressing plate 512, sealing chamber 52, testing instrument loading inlet 521, connecting column 53, air extraction pipe 54;

[0024] Material handling mechanism 6, support frame 61, second linear drive mechanism 62, moving frame 63, second cylinder 64, suction cup bracket 65, suction cup 66;

[0025] Feeding mechanism 7. Detailed Implementation

[0026] 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.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] As attached Figure 1As shown, a vacuum hot pressing device for heat insulation sheets of new energy batteries includes a frame 1. A linear moving mechanism 2 is provided on the top of the frame 1. A loading platform 3 is movably mounted on the linear moving mechanism 2. The loading platform 3 is used to carry the workpiece. A lifting mechanism 4 is also provided on the frame 1. A pressing mechanism 5 is connected to the lifting mechanism 4 for lifting and pressing with the loading platform 3. A material picking mechanism 6 and a material unloading mechanism 7 are provided on the side of the frame 1 at one end of the linear moving mechanism 2.

[0029] Furthermore, the linear movement mechanism 2 includes guide rails 21 fixed to the top of the frame 1. Preferably, two guide rails 21 are arranged in parallel. The guide rails 21 are slidably connected to the loading platform 3. The linear movement mechanism 2 also includes a first linear drive mechanism 22 disposed on the frame. The first linear drive mechanism 22 drives and connects to the loading platform 3. The first linear drive mechanism 22 can be a linear motor with its movement direction parallel to the guide rails 21. The body of the linear motor is fixedly connected to the frame 1, and the output end of the linear motor is fixedly connected to the loading platform 3. Alternatively, the first linear drive mechanism 22 can be a belt pulley mechanism with its movement direction parallel to the guide rails 21. The loading platform 3 is fixedly connected to a belt, and the pulley is driven to rotate by a motor. Alternatively, the first linear drive mechanism 22 can be a cylinder. One end of the cylinder is hinged to the frame 1, and the other end of the cylinder is hinged to the loading platform 3. The first linear drive mechanism 22 is preferably disposed between the two guide rails 21.

[0030] Further details are attached. Figure 2 As shown, the loading platform 3 includes a support plate 31, a heat insulation plate 32, a heating plate 33, and a mold plate 34, which are fixedly connected from bottom to top. The support plate 31 is preferably a steel plate. A support bar is fixed on each side of the bottom of the support plate 31. Each support bar corresponds to a guide rail 21. At least one slider 311, preferably three sliders that cooperate with the guide rail 21, is fixedly connected to the bottom of each support bar. The heat insulation plate 32 is preferably a rock wool board, a ceramic fiber board, or other composite material board. The heating plate 33 is preferably an aluminum alloy plate. A heating wire 331 is embedded in the plate. The head of the heating wire 331 is shown in the figure. The wiring terminal of the heating wire 331 preferably passes through the bottom of the heating plate 33 and passes through the heat insulation plate 32 and the support plate 31 in sequence and is connected to the power cord. Corresponding wire protection grooves are provided on the frame 1. The top of the mold plate 34 is provided with several hot pressing grooves 341 for supporting the workpiece.

[0031] Further details are attached. Figure 3-5 As shown, the lifting mechanism 4 includes a support base 41 fixedly connected to the frame 1. The support base 41 mounted on the frame 1 is divided into multiple sections, allowing the two guide rails 21 to move as shown in the diagram. Figure 1As shown, the bottom end of the guide rod 42 is fixedly connected to the top of the support base 41. The guide rod 42 is preferably four rods located at the four corners of the support base 41. The top end of the guide rod 42 is fixedly connected to the support plate 43. The bottom of the support plate 43 is fixedly connected to the cylinder body of the hydraulic cylinder 44. The top of the support plate 43 is fixedly connected to the hydraulic station 45, which is connected to the hydraulic cylinder 44 by an oil circuit. The hydraulic station 45 includes a hydraulic oil tank and an oil pump connected to the hydraulic oil tank by an oil circuit. The oil pump is connected to the hydraulic cylinder 44 by an oil circuit. The output end of the hydraulic cylinder 44 is fixedly connected to the lifting plate 46. The lifting plate 46 is slidably connected to the four guide rods 42. A pressing mechanism 5 is provided at the bottom of the lifting plate 46.

[0032] Further details are attached. Figure 4-7 As shown, the pressing mechanism 5 includes a pressing plate 51 that mates with the top of the mold plate 34. The pressing plate 51 preferably includes a pressing plate 512 at its bottom for contacting the mold plate 34, and a second heating plate 511 fixedly connected to the top of the pressing plate 512. The second heating plate 511 has the same structure as the heating plate 33. A sealing chamber 52 is sleeved outside the pressing plate 51. The sealing chamber 52 can be sleeved with the material carrier 3, with a transition fit or a small gap fit. The top of the second heating plate 511 at the top of the pressing plate 51 is fixedly connected to the bottom end of at least one connecting column 53. Preferably, multiple columns are evenly arranged at the four corners and the center to make the pressing force relatively more uniform. The top end of the connecting column 53 passes through the sealing chamber 52 and is fixedly connected to the bottom end of the lifting plate 46. A sealing ring sleeved on the connecting column 53 can be fixed on the sealing chamber 52 to reduce air leakage. The cylinder body of the cylinder 48 is fixedly connected to the side of the lifting plate 46. Preferably, one cylinder 48 is arranged on each side of the lifting plate 46. The output end is fixedly connected to the outer wall of the sealing chamber 52; one end of the suction pipe 54 is connected to the side of the sealing chamber 52, and the other end of the suction pipe 54 vertically passes downward through the support base 41 and the frame 1 and is connected to the suction equipment, so that as the sealing chamber 52 rises and falls, the suction pipe 54 slides relative to the support base 41 and the frame 1. The bottom of the suction pipe 54 is preferably connected to the suction equipment or air compressor through a hose; preferably, the top of the support base 41 is fixedly connected to the support platform 47, which is used to support the bottom of the sealing chamber 52 to form a lower limit position, and the bottom of the sealing chamber 52 is preferably provided with a pressing rubber strip to cooperate with it; preferably, the side of the sealing chamber 52 is provided with a detection instrument inlet 521, which is used to install a mounting plate for a detection instrument, including but not limited to a pressure sensor and a temperature sensor for detecting vacuum; the sealing chamber 52 itself and the joints between the sealing chamber 52 and other connecting parts are preferably provided with rubber strip structures to reduce air leakage.

[0033] Further details are attached. Figure 1 , 8As shown, the unloading mechanism 7 is a conveyor belt mechanism, with one end of the conveyor belt mechanism located to the side of one end of the guide rail 21; preferably, the guide rail 21 is divided into three stations along its extension direction, including an initial station at the head end of the guide rail, a hot pressing station located below the lifting mechanism 4, and a discharge station located at the tail end of the guide rail 21; the material handling mechanism 6 includes a support frame 61 fixed to the frame 1, the support frame 61 being located to the side of the discharge station, a second linear drive mechanism 62 fixedly connected to the support frame 61, and a moving frame 63 fixedly connected to the output end of the second linear drive mechanism 62; the second linear drive mechanism 62 can be a linear motor moving between the head end of the unloading mechanism 7 and the tail end of the guide rail 21, the linear motor body being fixedly connected to the support frame 61, and the moving frame being fixedly connected to the output end of the linear motor. 63; The first linear drive mechanism 22 can also be a pulley mechanism as shown in the figure, moving at the head end of the feeding mechanism 7 and the tail end of the guide rail 21. The moving frame 63 is fixedly connected to the belt, and the pulley is driven to rotate by the motor. The cylinder body of the second cylinder 64 is fixedly connected to the moving frame 63. The output end of the second cylinder 64 is fixedly connected to the suction cup bracket 65. The bottom of the suction cup bracket 65 is fixedly connected to the suction cup 66 corresponding to the hot pressing groove 341. Corresponding means that each hot pressing groove 341 corresponds to at least one suction cup 66. Each suction cup 66 is provided with an independent air path and is connected to an air pump through the main air path. Within the stroke range of the second linear drive mechanism 62, the suction cup bracket 65 can be located above the material platform 3 near the conveyor belt mechanism or above the conveyor belt mechanism.

[0034] The working process of this utility model is as follows: The loading platform 3 moves to the initial position, and the heat insulation material is placed into the hot pressing groove 341 of the loading platform 3 by manual or robotic arm. After placement, the first linear drive mechanism 22 drives the loading platform 3 to move on the guide rail 21 to the hot pressing position. The hydraulic cylinder 44 in the lifting mechanism 4 drives the lifting plate 46 to lower the pressing mechanism 5 as a whole until the pressing plate 51 presses against the mold plate 34. After complete pressing, the cylinder 48 drives the sealing chamber 52 to lower and fasten the loading platform 3. After fastening, the air extraction device uses the air extraction pipe 54 to create a negative pressure environment for the sealing chamber 52. Then, the heating wire is energized for heating. After completion, the sealing chamber 52 is returned to normal pressure. Then, the cylinder 48 drives the sealing chamber 52 to rise. After cooling, the hydraulic cylinder 44 drives the lifting plate 46 to rise along with the pressing mechanism 5. The first linear drive mechanism 22 drives the loading platform 3 to move on the guide rail 21 to the discharge station. The second linear drive mechanism 62 drives the moving frame 63 to move above the loading platform 3. The second cylinder 64 drives the suction cup bracket 65 to descend. The suction cup 66 approaches the workpiece and picks it up. Then, the suction cup bracket 65 rises, the moving frame 63 moves above the conveyor belt of the unloading mechanism 7, the suction cup bracket 65 descends, the suction cup 66 releases the workpiece, and the conveyor belt moves the distance of one station.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A vacuum hot pressing device for heat insulation sheets of new energy batteries, characterized in that: The machine includes a frame (1), a linear moving mechanism (2) is provided on the top of the frame (1), a loading platform (3) is provided on the linear moving mechanism (2), the loading platform (3) is used to carry the workpiece, a lifting mechanism (4) is also provided on the frame (1), a pressing mechanism (5) is connected to the lifting mechanism (4) for lifting and pressing, the pressing mechanism (5) is used to press and cooperate with the loading platform (3), and a material picking mechanism (6) and a material unloading mechanism (7) are provided on the side of the frame (1) at one end of the linear moving mechanism (2).

2. The vacuum hot pressing equipment for heat insulation sheets of new energy batteries as described in claim 1, characterized in that: The linear movement mechanism (2) includes a guide rail (21) fixed to the top of the frame (1), the guide rail (21) is slidably connected to the loading platform (3), and the linear movement mechanism (2) also includes a first linear drive mechanism (22) set on the frame, the first linear drive mechanism (22) drives the loading platform (3).

3. The vacuum hot pressing equipment for heat insulation sheets of new energy batteries as described in claim 2, characterized in that: The loading platform (3) includes a support plate (31), a heat insulation plate (32), a heating plate (33), and a mold plate (34) that are fixedly connected from bottom to top. The support plate (31) has a slider (311) fixedly connected to the bottom and cooperates with the guide rail (21). The heating plate (33) has a heating wire (331) embedded in it. The mold plate (34) has several hot pressing grooves (341) on the top for supporting the workpiece.

4. The vacuum hot pressing equipment for heat insulation sheets of new energy batteries as described in claim 3, characterized in that: The lifting mechanism (4) includes a support base (41) fixedly connected to the frame (1), the bottom end of the guide rod (42) fixedly connected to the top of the support base (41), the top end of the guide rod (42) fixedly connected to the support plate (43), the support plate (43) fixedly connected to the cylinder body of the hydraulic cylinder (44), the top of the support plate (43) fixedly connected to the hydraulic station (45) connected to the oil circuit of the hydraulic cylinder (44), the output end of the hydraulic cylinder (44) fixedly connected to the lifting plate (46), the lifting plate (46) slidably connected to the guide rod (42), and a pressing mechanism (5) is provided at the bottom of the lifting plate (46).

5. The vacuum hot pressing equipment for heat insulation sheets of new energy batteries as described in claim 4, characterized in that: The pressing mechanism (5) includes a pressing plate (51) that mates with the top of the mold plate (34) and a sealing chamber (52) that is sleeved on the outside of the pressing plate (51). The sealing chamber (52) can be sleeved with the material carrier (3). The bottom end of at least one connecting column (53) is fixedly connected to the top of the pressing plate (51). The top end of the connecting column (53) passes through the sealing chamber (52) and is fixedly connected to the bottom end of the lifting plate (46). The cylinder body of the cylinder (48) is fixedly connected to the side of the lifting plate (46). The output end of the cylinder (48) is fixedly connected to the outer wall of the sealing chamber (52). One end of the suction pipe (54) is connected to the side of the sealing chamber (52). The other end of the suction pipe (54) passes vertically downward through the support base (41) and the frame (1) and is connected to the suction device.

6. The vacuum hot pressing equipment for heat insulation sheets of new energy batteries as described in claim 5, characterized in that: The feeding mechanism (7) is a conveyor belt mechanism, one end of which is located on the side of one end of the guide rail (21); the picking mechanism (6) includes a support frame (61) fixed on the frame (1), a second linear drive mechanism (62) is fixedly connected to the support frame (61), a moving frame (63) is fixedly connected to the output end of the second linear drive mechanism (62), the cylinder body of the second cylinder (64) is fixedly connected to the moving frame (63), the output end of the second cylinder (64) is fixedly connected to the suction cup bracket (65), and the bottom of the suction cup bracket (65) is fixedly connected to the suction cup (66) corresponding to the hot pressing groove (341). Within the stroke range of the second linear drive mechanism (62), the suction cup bracket (65) can be located above the loading platform (3) close to the conveyor belt mechanism, or it can be located above the conveyor belt mechanism.