A power battery buffer insulation pad and its preparation process

Abstract

The present invention discloses a power battery buffer thermal insulation pad and a preparation process. The present invention relates to the technical field of buffer thermal insulation pad preparation, including a support frame, which can be made of materials such as silicone rubber frame or rubber strip, to play a supporting and buffering role, and withstand a certain pressure and impact force when the battery is operating normally; a thermal insulation layer, which generally adopts aerogel fiber felt. The power battery buffer thermal insulation pad and preparation process are arranged by placing the buffer thermal insulation pad on the surface of the power battery to fit the pad and the bonding pad to the power battery. The pad is set as aerogel fiber felt, which is used to block heat transfer and prevent heat diffusion when the battery cell is thermally runaway. When the power battery shakes during use, the pad is forced to be concave to one side of the hollow groove to buffer the shaking and impacting power battery. At this time, the bonding pad is supported between the pads on both sides to enhance the stability and strength of the structure and prevent the thermal insulation layer from being displaced or damaged during use.

Description

Technical Field

[0001] The present invention relates to the technical field of buffer and thermal insulation pad preparation, and in particular to a power battery buffer and thermal insulation pad and a preparation process thereof. Background Art

[0002] With the rapid development of the electric vehicle industry, the safety and stability of power batteries, as core components, have drawn significant attention. During use, power batteries face a variety of complex operating conditions, such as vibration, impact, and heat generation and accumulation. Traditional buffering and insulation materials often struggle to simultaneously meet the requirements for good buffering performance and efficient thermal insulation. Over long-term use, they can experience performance degradation and poor compatibility with battery components, impacting the overall performance and service life of power batteries.

[0003] At present, the cushioning and thermal insulation pad needs to be stamped after bonding and forming to make the adhesion between the various structures of the cushioning and thermal insulation pad tighter. The traditional lamination and splicing process can easily lead to poor integrity of the cushioning and thermal insulation pad, and it is easy to delaminate and fall off during long-term use, affecting its cushioning and thermal insulation performance. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a power battery buffer insulation pad and its preparation process, including a support frame, which can be made of materials such as a silicone rubber frame or a rubber strip, and plays a supporting and buffering role, and withstands certain pressure and impact force during normal operation of the battery;

[0005] Thermal insulation layer, which is generally made of aerogel fiber felt, which is a composite of aerogel and fiber substrate. It is mainly used to block heat transfer and prevent heat diffusion when the battery core is thermally runaway;

[0006] Buffer pad column, which can be made of rubber material, is mainly used to enhance the stability and strength of the structure and prevent the insulation layer from being displaced or damaged during use;

[0007] The heat insulation layer is fixedly mounted on both sides of the outer surface of the support frame, and the buffer pad column runs through the middle of the inner portion of the heat insulation layer, and the buffer pad column is adapted to the heat insulation layer;

[0008] Preferably, the buffer pad column includes a through column, a fitting pad is fixedly mounted on the top of the through column, and an extrusion groove is provided on the surface of the fitting pad.

[0009] The thermal insulation layer includes a pad, the surface of which is arranged in an inclined shape. There are two pads, and a bent plate is fixedly installed at the bottom of each of the two pads. A hollow groove is arranged between the bent plate and the pad. The inclined surfaces of the bent plate and the pad are respectively adapted to the outer surfaces of the through column and the bonding pad. The buffer insulation pad is placed on the surface of the power battery to fit the pad, the bonding pad and the power battery. The pad is arranged in an aerogel fiber felt to block heat transfer and prevent heat diffusion in the event of thermal runaway of the battery cell. When the power battery shakes during use, the pad is forced to be concave toward one side of the hollow groove to cushion the shaking and impacting power battery. At this time, the bonding pad is supported between the pads on both sides to enhance the stability and strength of the structure and prevent displacement or damage to the thermal insulation layer during use.

[0010] Preferably, a process for preparing a power battery buffer insulation pad comprises the following steps:

[0011] Step 1: Raw material preparation. When preparing the battery buffer insulation pad, the staff needs to prepare the support frame, insulation layer, buffer pad column and adhesive double-sided tape. The support frame can be made of silicone rubber frame or rubber strip, the insulation layer is generally made of aerogel fiber felt, which is a composite of aerogel and fiber base material, and the buffer pad column can be made of rubber material;

[0012] Step 2: Lamination process: The staff adheres the insulation layer to the support frame with double-sided tape, inserts the cushion columns into the interior of the cushion columns, and connects multiple groups of support frames to the insulation layer. At this time, the bottom ends of the cushion columns are supported on the lamination device to support the insulation layer;

[0013] Step three, lamination molding: after the staff completes the bonding of the thermal insulation cushion, they use a lamination device to punch the battery thermal insulation cushion so that the bonded thermal insulation cushion is more tightly fitted, so that the battery thermal insulation cushion is prepared and formed.

[0014] Preferably, a process for preparing a power battery buffer and thermal insulation pad, wherein the laminating device in step three comprises:

[0015] A frame, a chassis is fixedly mounted on the top of the frame, a motor is fixedly mounted on the top of the chassis, and a hydraulic rod is movably mounted on the top of the chassis;

[0016] A laminate assembly, the laminate assembly being used for laminating and bonding battery buffer and thermal insulation pads;

[0017] A stabilizing support seat, which is used to guide and position the battery buffer and thermal insulation pad;

[0018] The stabilizing support seat is fixedly installed on the bottom of the frame, the laminating assembly is fixedly installed on the bottom of the hydraulic rod, and the laminating assembly and the stabilizing support seat are arranged on the same central axis.

[0019] Preferably, the laminate assembly includes a laminate block, which is fixedly mounted on the bottom of the hydraulic rod, and a connecting frame is fixedly mounted on the outer surface of the laminate block. There are two groups of connecting frames, and the two groups of connecting frames are symmetrically arranged with the laminate block as the center. A clamping block is provided on the outer surface of the connecting frame, and an extension plate is fixedly mounted on the outer surface of the clamping block, and an extrusion pad is fixedly mounted on the bottom of the extension plate. The staff starts the hydraulic press in the chassis, so that the output end of the hydraulic press drives the hydraulic rod downward, so that the laminate block contacts the buffer insulation pad as the hydraulic rod moves downward. At this time, the positioning block moves down to the inside of the card slot to limit the two sides of the laminate block. When the laminate block punches the buffer insulation pad downward, the buffer insulation pad is forced to shrink downward. At this time, the bottom plate arranged on both sides of the laminate block and connected to the positioning block is affected by the downward movement of the laminate block, and the bending piece and the extrusion part are squeezed by the extrusion pad. The two sides of the laminate block are stably buffered by the extrusion part to avoid uneven force and deformation of the segmented buffer insulation pad when the laminate block is laminated on the buffer insulation pad, affecting the adhesion effect.

[0020] Preferably, a bending piece is fixedly installed on the bottom of the extrusion pad, a bottom plate is fixedly installed on the surface of the bending piece, a positioning block is fixedly installed on the bottom of the bottom plate, the positioning block is snap-fitted with the stabilizing support seat, and an extrusion piece is fixedly installed between the bottom plate and the extrusion pad.

[0021] Preferably, the extrusion member includes a circular shaft, a paddle is movably mounted inside the circular shaft, the paddle is frictionally adapted to the bottom plate, a rotating rod is rotatably mounted on the outer surface of the circular shaft, a collar is sleeved on the outer surface of the rotating rod, a bonding sheet and an extrusion frame are fixedly mounted on the outer surface of the collar, the bonding sheet is fixedly mounted with the surface of the extrusion pad, and the extrusion frame is fixedly mounted on the top of the bottom plate. When the laminate block is punched downward, it drives the connecting frames on both sides to move downward, so that the extrusion pad squeezes the bonding sheet as the connecting frames move downward, causing the bending sheet and the extrusion frame to be squeezed and deformed, and causing the paddle to slide and displace on the surface of the bottom plate to provide buffering protection for both sides of the laminate block, thereby improving the stability of the laminate block during punching.

[0022] Preferably, the stabilizing support comprises a support column, an extension frame fixedly mounted on the top of the support column, a slot fixedly mounted in the middle of the top of the extension frame, an operating table fixedly mounted within the slot, a material guide fixedly mounted on one side of the outer surface of the operating table, and connecting plates fixedly mounted on both sides of the outer surface of the material guide. A staff member places a buffering and thermal insulation pad within the material guide and pushes the buffering and thermal insulation pad toward the side of the operating table, so that the material guide slides and fits with the side of the through column, thereby stably placing the buffering and thermal insulation pad above the operating table.

[0023] Preferably, the material guide member includes a connecting plate, a bottom groove is opened on the surface of the connecting plate, a material guide pad is fixedly installed on the top of the connecting plate, the material guide pad is arranged on both sides of the outer surface of the bottom groove, and the bottom groove is slidably adapted to the through column.

[0024] Preferably, a sliding pad is fixedly mounted inside the guide pad, and a rotation groove is formed at both ends of the outer surface of the sliding pad. A swivel is rotatably mounted inside the swivel groove, and the swivel is slidably adapted to the through-column. The bottom groove corresponds to the through-column, and the bent plate is mounted on the surface of the sliding pad via the through-column. When preparing the buffer and thermal insulation pad, the staff will place the through-column inside the bottom groove and push the buffer and thermal insulation pad so that the through-column slides in the bottom groove. At this time, the swivel rotatably mounted in the swivel groove is pushed by the through-column to slide in the swivel groove, thereby guiding and conveying the through-column, thereby preventing the buffer and thermal insulation pad from being offset during preparation and tilting during lamination, which affects the pressing effect.

[0025] The present invention provides a power battery buffer and thermal insulation pad and its preparation process. It has the following beneficial effects:

[0026] 1. The power battery buffer thermal insulation pad and its preparation process are as follows: the buffer thermal insulation pad is placed on the surface of the power battery to fit the pad and the bonding pad to the power battery. The pad is set as an aerogel fiber felt to block heat transfer and prevent heat diffusion when the battery cell is thermally runaway. When the power battery shakes during use, the pad is forced to be concave toward one side of the hollow groove to cushion the shaking and impact of the power battery. At this time, the bonding pad is supported between the pads on both sides to enhance the stability and strength of the structure and prevent the insulation layer from being displaced or damaged during use.

[0027] 2. The power battery buffer thermal insulation pad and its preparation process: the staff starts the hydraulic press in the chassis, so that the output end of the hydraulic press drives the hydraulic rod downward, so that the laminated block contacts the buffer thermal insulation pad as the hydraulic rod moves downward, and the positioning block moves down to the inside of the card slot to limit the two sides of the laminated block. When the laminated block punches the buffer thermal insulation pad downward, the buffer thermal insulation pad is forced to shrink downward. At this time, the bottom plate arranged on both sides of the laminated block and connected to the positioning block is affected by the downward movement of the laminated block, and the bending piece and the extrusion part are squeezed by the extrusion pad, and the two sides of the laminated block are stably buffered by the extrusion part to avoid uneven force and deformation of the segmented buffer thermal insulation pad when the laminated block is laminated on the buffer thermal insulation pad, which affects the adhesion effect.

[0028] 3. The power battery buffer and thermal insulation pad and its preparation process, when the laminate block is punched downward, drives the connecting frames on both sides to move downward, so that the extrusion pad squeezes the bonding sheet as the connecting frame moves downward, causing the bending sheet and the extrusion frame to be squeezed and deformed, and causing the paddle to slide and move on the surface of the bottom plate, so as to provide buffering protection for both sides of the laminate block and improve the stability of the laminate block during punching.

[0029] 4. The power battery buffer insulation pad and its preparation process are as follows: the staff places the buffer insulation pad inside the material guide and pushes the buffer insulation pad to the side of the operating table, so that the material guide slides and fits with the side of the through column, so that the buffer insulation pad is stably placed above the operating table.

[0030] 5. The power battery buffer thermal insulation pad and its preparation process correspond to the through-column through the bottom groove, and the bent plate is mounted on the surface of the sliding pad through the through-column. When preparing the buffer thermal insulation pad, the staff places the through-column inside the bottom groove and pushes the buffer thermal insulation pad to make the through-column slide in the bottom groove. At this time, the rotating ring arranged in the rotating groove is pushed by the through-column to slide in the rotating groove to guide and transport the through-column, thereby avoiding offset during the preparation of the buffer thermal insulation pad and tilting during lamination to affect the pressing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the external structure of a power battery buffer and thermal insulation pad of the present invention;

[0032] Figure 2 This is a schematic diagram of the connection structure between the heat insulation layer and the buffer pad column of the present invention;

[0033] Figure 3 This is a schematic diagram of a power battery buffer and thermal insulation pad and its preparation process flow of the present invention;

[0034] Figure 4 Schematic diagram of the external structure of the laminating device of the present invention;

[0035] Figure 5 This is a schematic diagram of the external structure of the laminating device of the present invention from another angle;

[0036] Figure 6 This is a schematic diagram of the connection structure between the laminate assembly and the stabilizing support base of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the stabilizing support seat of the present invention;

[0038] Figure 8 This is an enlarged structural diagram of the material guide member of the present invention;

[0039] Figure 9 This is a schematic diagram of the connection structure between the laminated assembly and the hydraulic rod of the present invention;

[0040] Figure 10 Schematic diagram of the structure of the laminated assembly of the present invention;

[0041] Figure 11 This is a schematic diagram of the disassembled structure of the laminate assembly of the present invention;

[0042] Figure 12 It is a schematic diagram of the enlarged structure of the extrusion part of the present invention.

[0043] In the figure: 1. Motor; 2. Chassis; 3. Hydraulic rod; 4. Laminating assembly; 41. Laminating block; 42. Bending piece; 43. Connecting frame; 44. Positioning block; 45. Clamping block; 46. Extrusion pad; 47. Extrusion piece; 471. Round shaft; 472. Laminating piece; 473. Rotating rod; 474. Extrusion frame; 475. Pick; 476. Ring; 48. Extension plate; 49. Bottom plate; 5. Frame; 6. Stabilizing support; 61 , card slot; 62, support column; 63, extension frame; 64, material guide; 641, material guide pad; 642, connecting plate; 643, bottom groove; 644, sliding pad; 645, swivel; 646, rotating groove; 65, operating table; 66, connecting plate; 7, support frame; 8, thermal insulation layer; 81, pad; 82, bending plate; 83, hollow groove; 9, buffer pad column; 91, extrusion groove; 92, fitting pad; 93, through column. DETAILED DESCRIPTION

[0044] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0045] The first embodiment, as Figures 1 to 2 As shown, the present invention provides a technical solution: a power battery buffer insulation pad and a preparation process, including a support frame 7, the support frame 7 can be made of materials such as a silicone rubber frame or a rubber strip, etc., to play a supporting and buffering role, and withstand a certain pressure and impact force when the battery is operating normally;

[0046] The thermal insulation layer 8 is generally made of aerogel fiber felt, which is a composite of aerogel and fiber substrate. It is mainly used to block heat transfer and prevent heat diffusion when the battery core is thermally runaway.

[0047] The buffer column 9 can be made of rubber material and its main function is to enhance the stability and strength of the structure and prevent the thermal insulation layer 8 from being displaced or damaged during use;

[0048] The heat insulation layer 8 is fixedly mounted on both sides of the outer surface of the support frame 7, and the buffer column 9 runs through the middle of the inner portion of the heat insulation layer 8, and the buffer column 9 is adapted to the heat insulation layer 8;

[0049] The buffer column 9 includes a through column 93 , a fitting pad 92 is fixedly mounted on the top of the through column 93 , and an extrusion groove 91 is opened on the surface of the fitting pad 92 .

[0050] The thermal insulation layer 8 includes a backing plate 81 with an inclined surface. Two backing plates 81 are provided, each with a bent plate 82 fixedly mounted on its bottom. A hollow groove 83 is provided between the bent plate 82 and the backing plate 81. The inclined surfaces of the bent plate 82 and the backing plate 81 respectively align with the outer surfaces of the through-pillar 93 and the bonding pad 92. A buffering thermal insulation pad is placed on the surface of the power battery to align the backing plate 81 and the bonding pad 92 with the power battery. The backing plate 81 is configured as an aerogel fiber felt to block heat transfer and prevent heat diffusion in the event of thermal runaway of the battery cell. If the power battery shakes during use, the backing plate 81 is forced to deflect toward one side of the hollow groove 83 to cushion the shaking impact of the power battery. At this time, the bonding pad 92 is supported between the two backing plates 81, enhancing the stability and strength of the structure and preventing displacement or damage to the thermal insulation layer during use.

[0051] The second embodiment, based on the first embodiment, see Figures 1 to 3 As shown, a process for preparing a power battery buffer insulation pad comprises the following steps:

[0052] Step 1: Raw material preparation. When preparing the battery buffer insulation pad, the staff needs to prepare the support frame 7, the insulation layer 8, the buffer pad column 9 and the double-sided adhesive tape. The support frame 7 can be made of silicone rubber frame or rubber strip, the insulation layer 8 is generally made of aerogel fiber felt, which is a composite of aerogel and fiber base material, and the buffer pad column 9 can be made of rubber material;

[0053] Step 2: Composite process: The staff adheres the thermal insulation layer 8 to the support frame 7 with double-sided tape, inserts the buffer column 9 into the buffer column 9, and connects multiple groups of support frames 7 to the thermal insulation layer 8. At this time, the bottom end of the buffer column 9 is supported on the laminating device to support the thermal insulation layer 8;

[0054] Step three, lamination molding: after the staff completes the bonding of the thermal insulation cushion, they use a lamination device to punch the battery thermal insulation cushion so that the bonded thermal insulation cushion is more tightly fitted, so that the battery thermal insulation cushion is prepared and formed.

[0055] The third embodiment, based on the first and second embodiments, see Figures 4 to 12 As shown, a process for preparing a power battery buffer insulation pad, wherein the laminating device in step three includes:

[0056] A frame 5 is provided, wherein a chassis 2 is fixedly mounted on the top of the frame 5, a motor 1 is fixedly mounted on the top of the chassis 2, and a hydraulic rod 3 is movably mounted on the top of the chassis 2;

[0057] A lamination assembly 4, which is used for lamination and bonding of battery buffer and thermal insulation pads;

[0058] A stabilizing support 6, which is used to guide and position the battery buffer and thermal insulation pad;

[0059] The stabilizing support seat 6 is fixedly mounted on the bottom of the frame 5 , the laminating assembly 4 is fixedly mounted on the bottom of the hydraulic rod 3 , and the laminating assembly 4 and the stabilizing support seat 6 are arranged on the same central axis.

[0060] The lamination assembly 4 includes a lamination block 41, which is fixedly installed at the bottom of the hydraulic rod 3. A connecting frame 43 is fixedly installed on the outer surface of the lamination block 41. There are two groups of connecting frames 43, and the two groups of connecting frames 43 are symmetrically arranged with the lamination block 41 as the center. A clamping block 45 is provided on the outer surface of the connecting frame 43, and an extension plate 48 is fixedly installed on the outer surface of the clamping block 45. An extrusion pad 46 is fixedly installed on the bottom of the extension plate 48. The staff starts the hydraulic press in the chassis 2, so that the output end of the hydraulic press drives the hydraulic rod 3 downward, so that the laminate block 41 moves down with the hydraulic rod 3 and contacts the buffer insulation pad. At this time, the positioning block 44 moves down to the inside of the card slot 61 to limit the two sides of the laminate block 41. When the laminate block 41 punches the buffer insulation pad downward, the buffer insulation pad is forced to shrink downward. At this time, the bottom plate 49 arranged on both sides of the laminate block 41 and connected to the positioning block 44 is affected by the downward movement of the laminate block 41, and the bending piece 42 and the extrusion part 47 are squeezed by the extrusion pad 46. The two sides of the laminate block 41 are stably buffered by the extrusion part 47 to avoid the segmented buffer insulation pad being unevenly stressed and deformed when the laminate block 41 laminates the buffer insulation pad, affecting the adhesion effect.

[0061] A bending piece 42 is fixedly installed at the bottom of the extrusion pad 46, a bottom plate 49 is fixedly installed on the surface of the bending piece 42, a positioning block 44 is fixedly installed at the bottom of the bottom plate 49, the positioning block 44 is snap-fitted with the stabilizing support seat 6, and an extrusion piece 47 is fixedly installed between the bottom plate 49 and the extrusion pad 46.

[0062] The extrusion member 47 includes a circular shaft 471, on which a paddle 475 is movably mounted. The paddle 475 is frictionally engaged with the bottom plate 49. A rotating rod 473 is rotatably mounted on the outer surface of the circular shaft 471. A collar 476 is sleeved on the outer surface of the rotating rod 473. A bonding sheet 472 and an extrusion frame 474 are fixedly mounted on the outer surface of the collar 476. The bonding sheet 472 is fixedly mounted with the surface of the extrusion pad 46, and the extrusion frame 474 is fixedly mounted on the top of the bottom plate 49. When the laminate block 41 is punched downward, it drives the connecting frames 43 on both sides to move downward, causing the extrusion pad 46 to squeeze the bonding sheet 472 as the connecting frames 43 move downward. This causes the bending sheet 42 and the extrusion frame 474 to be squeezed and deformed, and causes the paddle 475 to slide and move on the surface of the bottom plate 49, thereby providing buffering protection for both sides of the laminate block 41 and improving the stability of the laminate block 41 during punching.

[0063] The stabilizing support 6 includes a support column 62, with an extension frame 63 fixedly mounted on the top of the support column 62. A slot 61 is fixedly mounted in the middle of the top of the extension frame 63. An operating table 65 is fixedly mounted within the slot 61. A material guide 64 is fixedly mounted on one side of the outer surface of the operating table 65, and connecting plates 66 are fixedly mounted on both sides of the outer surface of the material guide 64. A staff member places a buffering and thermal insulation pad inside the material guide 64 and pushes the buffering and thermal insulation pad toward the operating table 65, so that the material guide 64 slides and fits with the side of the through-column 93, thereby stably placing the buffering and thermal insulation pad above the operating table 65.

[0064] The material guide member 64 includes a connecting plate 642 , a bottom groove 643 is opened on the surface of the connecting plate 642 , a material guide pad 641 is fixedly installed on the top of the connecting plate 642 , and the material guide pad 641 is arranged on both sides of the outer surface of the bottom groove 643 , and the bottom groove 643 is slidably adapted to the through column 93 .

[0065] A sliding pad 644 is fixedly mounted inside the guide pad 641. Rotating grooves 646 are formed at both ends of the outer surface of the sliding pad 644. A swivel 645 is rotatably mounted inside the swivel groove 646. The swivel 645 slidably engages with the through-post 93. The bottom groove 643 corresponds to the through-post 93. The bent plate 82 is mounted on the surface of the sliding pad 644 via the through-post 93. When preparing the buffer and thermal insulation pad, the worker places the through-post 93 inside the bottom groove 643 and pushes the buffer and thermal insulation pad so that the through-post 93 slides within the bottom groove 643. At this time, the swivel 645 rotatably mounted inside the swivel groove 646 is pushed by the through-post 93 to slide within the swivel groove 646, thereby guiding and conveying the through-post 93. This prevents the buffer and thermal insulation pad from shifting during preparation and tilting during lamination, which affects the lamination effect.

[0066] During use, a buffering insulation pad is placed on the surface of the power battery to fit the pad 81 and the fitting pad 92 to the power battery. The pad 81 is set to an aerogel fiber felt to block heat transfer and prevent heat diffusion when the battery cell is thermally runaway. When the power battery shakes during use, the pad 81 is forced to be concave toward one side of the hollow groove 83 to cushion the shaking and impacting power battery. At this time, the fitting pad 92 is supported between the pads 81 on both sides to enhance the stability and strength of the structure and prevent the insulation layer from being displaced or damaged during use.

[0067] The staff places the buffer insulation pad inside the material guide 64 and pushes the buffer insulation pad toward the side of the operating table 65 so that the material guide 64 slides and fits with the side of the through column 93 to ensure that the buffer insulation pad is stably placed above the operating table 65.

[0068] The bottom groove 643 corresponds to the through column 93, and the bending plate 82 is mounted on the surface of the sliding pad 644 through the through column 93. When preparing the buffer insulation pad, the staff places the through column 93 inside the bottom groove 643 and pushes the buffer insulation pad so that the through column 93 slides in the bottom groove 643. At this time, the rotating ring 645 rotating in the rotating groove 646 is pushed by the through column 93 to slide in the rotating groove 646 to guide and transport the through column 93, so as to avoid offset during the preparation of the buffer insulation pad and tilt during lamination, which affects the pressing effect.

[0069] The staff starts the hydraulic press in the chassis 2, so that the output end of the hydraulic press drives the hydraulic rod 3 downward, so that the laminate block 41 moves down with the hydraulic rod 3 and contacts the buffer insulation pad. At this time, the positioning block 44 moves down to the inside of the card slot 61 to limit the two sides of the laminate block 41. When the laminate block 41 punches the buffer insulation pad downward, the buffer insulation pad is forced to shrink downward. At this time, the bottom plate 49 arranged on both sides of the laminate block 41 and connected to the positioning block 44 is affected by the downward movement of the laminate block 41, and the bending piece 42 and the extrusion part 47 are squeezed by the extrusion pad 46. The two sides of the laminate block 41 are stably buffered by the extrusion part 47 to avoid the segmented buffer insulation pad being unevenly stressed and deformed when the laminate block 41 laminates the buffer insulation pad, affecting the adhesion effect.

[0070] When the laminate block 41 is punched downward, the connecting frames 43 on both sides are driven to move downward, so that the extrusion pad 46 squeezes the bonding sheet 472 as the connecting frame 43 moves downward, so that the bending sheet 42 and the extrusion frame 474 are squeezed and deformed, and the paddle 475 slides on the surface of the bottom plate 49 to provide buffer protection for both sides of the laminate block 41 and improve the stability of the laminate block 41 during punching.

[0071] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A power battery buffer insulation pad, characterized in that: include: A support frame (7) is made of a silicone rubber frame or a rubber strip to support and cushion the pressure and impact forces borne by the battery during normal operation; The thermal insulation layer (8) is made of aerogel fiber felt, which is a composite of aerogel and fiber substrate, and is mainly used to block heat transfer and prevent heat diffusion when the battery core is thermally runaway; A buffer column (9) is made of rubber material and has the main function of enhancing the stability and strength of the structure and preventing the thermal insulation layer (8) from being displaced or damaged during use; The heat insulation layer (8) is fixedly mounted on both sides of the outer surface of the support frame (7), the buffer column (9) passes through the middle of the interior of the heat insulation layer (8), and the buffer column (9) is adapted to the heat insulation layer (8); The buffer column (9) comprises a through column (93), a fitting pad (92) is fixedly mounted on the top of the through column (93), and an extrusion groove (91) is provided on the surface of the fitting pad (92).

2. A power battery buffer and thermal insulation pad according to claim 1, characterized in that: The thermal insulation layer (8) includes a pad (81), the surface of the pad (81) is arranged to be inclined, two pads (81) are provided, and a bending plate (82) is fixedly installed at the bottom of the two pads (81), a hollow groove (83) is provided between the bending plate (82) and the pad (81), and the inclined surfaces of the bending plate (82) and the pad (81) are respectively adapted to the outer surfaces of the through column (93) and the fitting pad (92).

3. According to the power battery buffer and thermal insulation pad of claim 1, a preparation process of the power battery buffer and thermal insulation pad is proposed, characterized in that: It consists of the following steps: Step 1: Raw material preparation. When preparing the battery buffer insulation pad, the staff needs to prepare a support frame (7), a thermal insulation layer (8), a buffer pad column (9) and adhesive double-sided tape. The support frame (7) is made of a silicone rubber frame or a rubber strip. The thermal insulation layer (8) is made of aerogel fiber felt, which is a composite of aerogel and fiber base material. The buffer pad column (9) is made of rubber. Step 2, composite process, the staff adheres the thermal insulation layer (8) to the support frame (7) by double-sided adhesive, inserts the buffer column (9) into the interior of the buffer column (9), and connects multiple groups of support frames (7) to the thermal insulation layer (8), at this time, the bottom end of the buffer column (9) is supported on the laminating device to support the thermal insulation layer (8); Step three, lamination molding: after the staff completes the bonding of the thermal insulation cushion, they use a lamination device to punch the battery thermal insulation cushion so that the bonded thermal insulation cushion is more tightly fitted, so that the battery thermal insulation cushion is prepared and formed.

4. The process for preparing a power battery buffer and thermal insulation pad according to claim 3, wherein the laminating device in step 3 is characterized in that: include: A frame (5), a chassis (2) is fixedly mounted on the top of the frame (5), a motor (1) is fixedly mounted on the top of the chassis (2), and a hydraulic rod (3) is movably mounted on the top of the chassis (2); A laminate assembly (4), the laminate assembly (4) being used for laminating and bonding battery buffer and thermal insulation pads; A stabilizing support seat (6), the stabilizing support seat (6) is used for guiding and positioning the battery buffer and thermal insulation pad; The stabilizing support seat (6) is fixedly mounted on the bottom of the frame (5), the laminating assembly (4) is fixedly mounted on the bottom of the hydraulic rod (3), and the laminating assembly (4) and the stabilizing support seat (6) are arranged on the same central axis.

5. The process for preparing a power battery buffer and thermal insulation pad according to claim 4, characterized in that: The laminate assembly (4) includes a laminate block (41), which is fixedly mounted on the bottom of the hydraulic rod (3). A connecting frame (43) is fixedly mounted on the outer surface of the laminate block (41). Two groups of connecting frames (43) are provided. The two groups of connecting frames (43) are symmetrically arranged with the laminate block (41) as the center. A clamping block (45) is clamped on the outer surface of the connecting frame (43). An extension plate (48) is fixedly mounted on the outer surface of the clamping block (45). An extrusion pad (46) is fixedly mounted on the bottom of the extension plate (48).

6. The process for preparing a power battery buffer and thermal insulation pad according to claim 5, characterized in that: A bending piece (42) is fixedly installed on the bottom of the extrusion pad (46), a bottom plate (49) is fixedly installed on the surface of the bending piece (42), a positioning block (44) is fixedly installed on the bottom of the bottom plate (49), the positioning block (44) is snap-fitted with the stabilizing support seat (6), and an extrusion piece (47) is fixedly installed between the bottom plate (49) and the extrusion pad (46).

7. The process for preparing a power battery buffer and thermal insulation pad according to claim 6, characterized in that: The extrusion member (47) includes a circular shaft (471), a paddle (475) is movably mounted inside the circular shaft (471), the paddle (475) is frictionally fitted with the bottom plate (49), a rotating rod (473) is rotatably mounted on the outer surface of the circular shaft (471), a collar (476) is sleeved on the outer surface of the rotating rod (473), a fitting sheet (472) and an extrusion frame (474) are fixedly mounted on the outer surface of the collar (476), the fitting sheet (472) is fixedly mounted with the surface of the extrusion pad (46), and the extrusion frame (474) is fixedly mounted on the top of the bottom plate (49).

8. The process for preparing a power battery buffer and thermal insulation pad according to claim 4, characterized in that: The stabilizing support seat (6) includes a support column (62), an extension frame (63) is fixedly installed on the top of the support column (62), a card slot (61) is fixedly installed at the middle of the top of the extension frame (63), an operating table (65) is fixedly installed inside the card slot (61), a material guide (64) is fixedly installed on one side of the outer surface of the operating table (65), and connecting plates (66) are fixedly installed on both sides of the outer surface of the material guide (64).

9. The process for preparing a power battery buffer and thermal insulation pad according to claim 8, characterized in that: The material guide member (64) comprises a connecting plate (642), a bottom groove (643) is provided on the surface of the connecting plate (642), a material guide pad (641) is fixedly mounted on the top of the connecting plate (642), and the material guide pad (641) is arranged on both sides of the outer surface of the bottom groove (643), and the bottom groove (643) is slidably adapted to the through column (93).

10. The process for preparing a power battery buffer and thermal insulation pad according to claim 9, characterized in that: A sliding pad (644) is fixedly installed inside the material guide pad (641), and rotating grooves (646) are provided at both ends of the outer surface of the sliding pad (644). A rotating ring (645) is rotatably installed inside the rotating groove (646), and the rotating ring (645) is slidably adapted to the through-column (93).

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