Buffer heat insulation pad for power battery and preparation process of buffer heat insulation pad

Abstract

The invention discloses a power battery buffer heat insulation pad and a preparation process, and relates to the technical field of buffer heat insulation pad preparation, the power battery buffer heat insulation pad comprises a support frame, the support frame can be made of a silicone rubber frame or a rubber strip and other materials, has support and buffer effects, and can bear certain pressure and impact force during normal operation of a battery; and the heat insulation layer is generally made of aerogel fiber felt. According to the power battery buffering and heat-insulating pad and the preparation process, the buffering and heat-insulating pad is placed on the surface of the power battery, so that the base plate and the attaching pad are attached to the power battery, and the base plate is an aerogel fiber felt and is used for blocking heat transfer and preventing heat diffusion when a battery cell is in thermal runaway; the base plates are stressed to sink towards one side of the hollow groove so as to buffer the power battery which shakes and impacts, at the moment, the attaching pad is supported between the base plates on the two sides so as to enhance the stability and strength of the structure, and the heat insulation layer is prevented from being displaced or damaged in the using process.

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 its core components, have attracted much attention. During the use of power batteries, they will face various complex working conditions, such as vibration, impact, and heat generation and accumulation. Traditional buffer and thermal insulation materials often find it difficult to simultaneously meet the requirements of good buffering performance and efficient thermal insulation performance, and may have defects such as performance degradation and poor compatibility with battery components during long-term use, affecting the overall performance and service life of power batteries.

[0003] At present, the buffer insulation pad needs to be stamped after bonding and forming to make the adhesion between the various structures of the buffer insulation pad more firm. The traditional lamination and splicing process can easily lead to poor integrity of the buffer insulation pad, which is prone to delamination and falling off during long-term use, affecting its buffering 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 preparation process, including a support frame, the support frame can be made of materials such as a silicone rubber frame or a rubber strip, etc., which plays a supporting and buffering role and withstands a certain pressure and impact force when the battery is operating normally; The thermal insulation layer 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; Buffer column, which can be made of rubber material, is mainly used to enhance the stability and strength of the structure and prevent the thermal insulation layer from being displaced or damaged during use; The heat insulation layer is fixedly mounted on both sides of the outer surface of the support frame, the buffer column runs through the middle of the heat insulation layer, and the buffer column is adapted to the heat insulation layer; Preferably, the buffer pad column comprises 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.

[0005] The thermal insulation layer includes a pad, the surface of which is arranged in an inclined shape. Two pads are provided, and a bending plate is fixedly installed at the bottom of the two pads. A hollow groove is arranged between the bending plate and the pad, and the inclined surfaces of the bending 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, which is used to block heat transfer and prevent heat diffusion when the battery cell is in thermal 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.

[0006] Preferably, a process for preparing a power battery buffer insulation pad comprises the following steps: 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 double-sided adhesive tape. The support frame can be made of silicone rubber frame or rubber strip, etc. The insulation layer generally uses aerogel fiber felt, which is a composite of aerogel and fiber substrate. The buffer pad column can be made of rubber material; Step 2: Composite process: the staff adheres the thermal insulation layer to the support frame by double-sided adhesive, inserts the buffer column into the buffer column, and connects multiple groups of support frames to the thermal insulation layer. At this time, the bottom end of the buffer column is supported on the laminating device to support the thermal insulation layer. Step three, lamination molding, after the staff completes the bonding of the thermal insulation cushion pad, they use a lamination device to punch the battery buffer insulation cushion, so that the bonded buffer insulation cushion is more tightly fitted, so that the battery buffer insulation cushion is prepared and formed.

[0007] Preferably, a process for preparing a power battery buffer and thermal insulation pad, wherein the laminating device in step three comprises: 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; A lamination assembly, the lamination assembly is used for lamination and bonding of battery buffer and thermal insulation pads; A stabilizing support seat, which is used for guiding and positioning the battery buffer and thermal insulation pad; The stabilizing support seat is fixedly installed at the bottom of the frame, the laminating assembly is fixedly installed at the bottom of the hydraulic rod, and the laminating assembly and the stabilizing support seat are arranged on the same central axis.

[0008] Preferably, the lamination assembly includes a lamination block, the lamination block is fixedly mounted on the bottom of the hydraulic rod, a connecting frame is fixedly mounted on the outer surface of the lamination block, two groups of connecting frames are provided, and the two groups of connecting frames are symmetrically arranged with the lamination block as the center, a clamping block is provided on the outer surface of the connecting frame, 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 presses 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 sheet 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.

[0009] 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 a stabilizing support seat, and an extrusion piece is fixedly installed between the bottom plate and the extrusion pad.

[0010] Preferably, the extrusion member comprises a round shaft, a paddle is movably mounted inside the round shaft, the paddle is frictionally fitted with the bottom plate, a rotating rod is rotatably mounted on the outer surface of the round shaft, a collar is sleeved on the outer surface of the rotating rod, a bonding sheet and an extrusion frame are respectively 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, the connecting frames on both sides are driven to move downward, so that the extrusion pad squeezes the bonding sheet as the connecting frames move downward, so that the bending sheet and the extrusion frame are squeezed and deformed, and the paddle is slid and displaced on the surface of the bottom plate, so as to provide buffer protection for both sides of the laminate block and improve the stability of the laminate block during punching.

[0011] Preferably, the stabilizing support seat comprises a support column, an extension frame is fixedly mounted on the top of the support column, a card slot is fixedly mounted in the middle of the top of the extension frame, an operating table is fixedly mounted inside the card slot, a material guide is fixedly mounted on one side of the outer surface of the operating table, and connecting plates are fixedly mounted on both sides of the outer surface of the material guide. The staff places the buffer heat insulation pad inside the material guide and pushes the buffer heat insulation pad to one side of the operating table so that the material guide is slidably matched with the side of the through column, so that the buffer heat insulation pad is stably placed above the operating table.

[0012] Preferably, the material guide member comprises a connecting plate, a bottom groove is formed on the surface of the connecting plate, a material guide pad is fixedly mounted 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.

[0013] Preferably, a sliding pad is fixedly installed inside the guide pad, and rotating grooves are provided at both ends of the outer surface of the sliding pad. A rotating ring is rotatably installed inside the rotating groove, and the rotating ring is slidably adapted to the through-column. The bottom groove corresponds to the through-column, and the bending plate is mounted on the surface of the sliding pad through the through-column. When preparing the buffer and thermal insulation pad, the staff places the through-column inside the bottom groove, and pushes the buffer and thermal insulation pad to make the through-column slide in the bottom groove. At this time, the rotating ring rotatably arranged in the rotating groove is pushed by the through-column to slide in the rotating groove, so as to guide and transport the through-column, so as to avoid offset during the preparation of the buffer and thermal insulation pad and tilt during lamination to affect the pressing effect.

[0014] The present invention provides a power battery buffer insulation pad and a preparation process thereof. It has the following beneficial effects: 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 plate and the bonding pad to the power battery; the pad plate 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 plate is forced to be concave toward one side of the hollow groove to buffer the shaking and impacting power battery; at this time, the bonding pad is supported between the pad plates 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.

[0015] 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 presses the buffer thermal insulation pad downward, the buffer thermal insulation pad is forced to shrink downward. At this time, the bottom plates arranged on both sides of the laminated block and connected to the positioning blocks are affected by the downward movement of the laminated block, and the bending sheets and the extrusion parts are squeezed by the extrusion pads. The two sides of the laminated block are stably buffered by the extrusion parts to avoid uneven force on the segmented buffer thermal insulation pad when the laminated block is laminated on the buffer thermal insulation pad, resulting in deformation and affecting the adhesion effect.

[0016] 3. The power battery buffer and thermal insulation pad and its preparation process, when the laminate block is stamped 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, so that the bending sheet and the extrusion frame are squeezed and deformed, and the paddle slides and moves on the surface of the bottom plate, so as to provide buffer protection for both sides of the laminate block and improve the stability of the laminate block during stamping.

[0017] 4. The power battery buffer insulation pad and its preparation process, the staff places the buffer insulation pad inside the material guide and pushes the buffer insulation pad to one side of the operating table, so that the material guide and the side of the through column are slidably adapted to make the buffer insulation pad stably placed above the operating table.

[0018] 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 erected 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 rotatably arranged in the rotating groove is pushed by the through-column to slide in the rotating groove, so as 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

[0019] Figure 1 This is a schematic diagram of the external structure of a power battery buffer and thermal insulation pad of the present invention; 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; Figure 3 This is a schematic diagram of a power battery buffer and thermal insulation pad and a preparation process flow chart of the present invention; Figure 4 It is a schematic diagram of the external structure of the laminating device of the present invention; Figure 5 It is a schematic diagram of the structure of the laminating device of the present invention from another angle; Figure 6 It is a schematic diagram of the connection structure between the laminated assembly and the stabilizing support seat of the present invention; Figure 7 This is a schematic diagram of the structure of the stabilizing support seat of the present invention; Figure 8 It is a schematic diagram of the enlarged structure of the material guide member of the present invention; Fig. 9 It is a schematic diagram of the connection structure between the laminated assembly and the hydraulic rod of the present invention; Fig.10 It is a schematic diagram of the structure of the laminated assembly of the present invention; Fig.11 This is a schematic diagram of the disassembled structure of the laminate assembly of the present invention; Fig.12 It is a schematic diagram of the enlarged structure of the extrusion part of the present invention.

[0020] In the figure: 1, motor; 2, chassis; 3, hydraulic rod; 4, laminating assembly; 41, laminating block; 42, bending sheet; 43, connecting frame; 44, positioning block; 45, clamping block; 46, extrusion pad; 47, extrusion piece; 471, round shaft; 472, laminating sheet; 473, rotating rod; 474, extrusion frame; 475, paddle; 476, collar; 48, extension plate; 49, bottom plate; 5, frame; 6, stabilizing support seat; 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, supporting frame; 8, 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

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0022] The first embodiment, as Figure 1 to Figure 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; The heat insulation layer 8 is generally 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; 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 heat 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, and the buffer column 9 runs through the middle of the inner part of the heat insulation layer 8, and the buffer column 9 is adapted to the heat insulation layer 8; 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 formed on the surface of the fitting pad 92 .

[0023] The thermal insulation layer 8 includes a pad 81, the surface of which is arranged in an inclined shape. There are two pads 81, and a bending plate 82 is fixedly installed at the bottom of each of the two pads 81. A hollow groove 83 is arranged between the bending plate 82 and the pad 81. 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 bonding pad 92. The buffer thermal insulation pad is placed on the surface of the power battery to fit the pad 81 and the bonding pad 92 with the power battery. The pad 81 is arranged as an aerogel fiber felt to block heat transfer and prevent heat diffusion when the battery cell is in thermal 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 buffer the shaking and impacting power battery. At this time, the bonding pad 92 is supported between the pads 81 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.

[0024] The second embodiment is based on the first embodiment. Figures 1 to 3 As shown, a process for preparing a power battery buffer insulation pad is composed of the following steps: 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 bonding double-sided tape. The support frame 7 can be made of materials such as silicone rubber frame or rubber strip. The insulation layer 8 generally uses aerogel fiber felt, which is a composite of aerogel and fiber substrate. The buffer pad column 9 can be made of rubber material; Step 2, composite process, the staff adheres the heat insulation layer 8 to the support frame 7 by double-sided adhesive, inserts the buffer column 9 into the buffer column 9, and connects multiple groups of support frames 7 to the heat insulation layer 8. At this time, the bottom end of the buffer column 9 is supported on the laminating device to support the heat insulation layer 8; Step three, lamination molding, after the staff completes the bonding of the thermal insulation cushion pad, they use a lamination device to punch the battery buffer insulation cushion, so that the bonded buffer insulation cushion is more tightly fitted, so that the battery buffer insulation cushion is prepared and formed.

[0025] The third embodiment is based on the first and second embodiments. Figures 4 to 12 As shown, a process for preparing a power battery buffer thermal insulation pad, wherein the laminating device in step three comprises: 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 lamination assembly 4, which is used for lamination and bonding of battery buffer and thermal insulation pads; A stabilizing support seat 6, which is used for guiding and positioning the battery buffer and thermal insulation pad; The stabilizing support seat 6 is fixedly installed at the bottom of the frame 5, the laminating assembly 4 is fixedly installed at 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.

[0026] 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. Two groups of connecting frames 43 are provided. The two groups of connecting frames 43 are symmetrically arranged with the lamination 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 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 contacts the buffer insulation pad as the hydraulic rod 3 moves downward, and the positioning block 44 moves down to the inside of the 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 piece 47 are squeezed by the extrusion pad 46. The two sides of the laminate block 41 are stably buffered by the extrusion piece 47 to avoid uneven force on the segmented buffer insulation pad when the laminate block 41 is laminated on the buffer insulation pad, resulting in deformation and affecting the adhesion effect.

[0027] 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.

[0028] The extrusion member 47 includes a circular shaft 471, a paddle 475 is movably installed inside the circular shaft 471, and the paddle 475 is frictionally adapted with the bottom plate 49. A rotating rod 473 is rotatably installed on the outer surface of the circular shaft 471, and a collar 476 is sleeved on the outer surface of the rotating rod 473. The outer surface of the collar 476 is respectively fixedly installed with a bonding sheet 472 and an extrusion frame 474. The bonding sheet 472 is fixedly installed with the surface of the extrusion pad 46, and the extrusion frame 474 is fixedly installed on the top of the bottom plate 49. 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 is slid and displaced on the surface of the bottom plate 49, so as to provide buffer protection for both sides of the laminate block 41 and improve the stability of the laminate block 41 during punching.

[0029] The stabilizing seat 6 includes a support column 62, an extension frame 63 is fixedly installed on the top of the support column 62, a slot 61 is fixedly installed in the middle of the top of the extension frame 63, an operating table 65 is fixedly installed inside the 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. The staff puts the buffer and heat insulation pad inside the material guide 64 and pushes the buffer and heat insulation pad to one side of the operating table 65, so that the material guide 64 is slidably adapted to the side of the through column 93, so that the buffer and heat insulation pad is stably placed above the operating table 65.

[0030] The material guide member 64 includes a connecting plate 642 , a bottom groove 643 is formed 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 .

[0031] A sliding pad 644 is fixedly installed inside the guide pad 641, and two ends of the outer surface of the sliding pad 644 are provided with rotation grooves 646, and 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. 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 and thermal insulation pad, the staff will place the through-column 93 inside the bottom groove 643, and push the buffer and thermal insulation pad so that the through-column 93 slides in the bottom groove 643. At this time, the rotating ring 645 rotatably arranged in the rotating groove 646 is pushed by the through-column 93 to slide in the rotating groove 646, so as to guide and transport the through-column 93, so as to avoid the offset during the preparation of the buffer and thermal insulation pad and the tilt during the lamination, which affects the pressing effect.

[0032] When in use, a buffer 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 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 81 is forced to be concave to 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.

[0033] 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 so that the buffer insulation pad is stably placed above the operating table 65 .

[0034] 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 to make the through column 93 slide in the bottom groove 643. At this time, the rotating ring 645 rotatably arranged in the rotating groove 646 is pushed by the through column 93 to slide in the rotating groove 646, so as 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.

[0035] 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 contacts the buffer insulation pad as the hydraulic rod 3 moves downward, and the positioning block 44 moves down to the inside of the 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 piece 47 are squeezed by the extrusion pad 46. The two sides of the laminate block 41 are stably buffered by the extrusion piece 47 to avoid uneven force on the segmented buffer insulation pad when the laminate block 41 is laminated on the buffer insulation pad, resulting in deformation and affecting the adhesion effect.

[0036] When the laminating 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 frames 43 move 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 laminating block 41 and improve the stability of the laminating block 41 during punching.

[0037] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A power battery buffer insulation pad, characterized in that: include: A support frame (7), the support frame (7) may be made of a silicone rubber frame or a rubber strip, etc., to play a supporting and buffering role, and to withstand a certain pressure and impact force when the battery is operating normally; The thermal insulation layer (8) is generally 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), which can be made of rubber material and has the main function of enhancing the stability and strength of the structure and preventing the heat 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) penetrates the middle of the heat insulation layer (8), and the buffer column (9) is adapted to the heat insulation layer (8); The buffer pad 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) comprises a pad (81), the surface of the pad (81) being arranged in an inclined shape, two pads (81) being arranged, a bending plate (82) being fixedly mounted at the bottom of each of the two pads (81), a hollow groove (83) being arranged between the bending plate (82) and the pad (81), and the inclined surfaces of the bending plate (82) and the pad (81) respectively matching the outer surfaces of the through-column (93) and the fitting pad (92).

3. A process for preparing a power battery buffer insulation pad, characterized in that: It consists of the following steps: Step 1: Raw material preparation. When preparing a battery buffer thermal insulation pad, the staff needs to prepare a support frame (7), a thermal insulation layer (8), a buffer pad column (9) and a double-sided adhesive tape. The support frame (7) can be made of a silicone rubber frame or a rubber strip. The thermal insulation layer (8) generally uses an aerogel fiber felt, which is a composite of aerogel and a fiber base material. The buffer pad column (9) can be made of a rubber material. 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 buffer column (9), and connects multiple groups of support frames (7) to the thermal insulation layer (8), at which 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 pad, they use a lamination device to punch the battery buffer insulation cushion, so that the bonded buffer insulation cushion is more tightly fitted, so that the battery buffer insulation cushion is prepared and formed.

4. A process for preparing a power battery buffer 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 lamination assembly (4), the lamination assembly (4) being used for lamination and bonding of battery buffer and thermal insulation pads; A stabilizing support seat (6), the stabilizing support seat (6) being 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. A process for preparing a power battery buffer and thermal insulation pad according to claim 4, characterized in that: The laminating assembly (4) comprises a laminating block (41), wherein the laminating block (41) is fixedly mounted on the bottom of the hydraulic rod (3), a connecting frame (43) is fixedly mounted on the outer surface of the laminating block (41), two groups of connecting frames (43) are provided, and the two groups of connecting frames (43) are symmetrically arranged with the laminating 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), and a compression pad (46) is fixedly mounted on the bottom of the extension plate (48).

6. A process for preparing a power battery buffer and thermal insulation pad according to claim 5, characterized in that: A bending piece (42) is fixedly mounted on the bottom of the extrusion pad (46), a bottom plate (49) is fixedly mounted on the surface of the bending piece (42), a positioning block (44) is fixedly mounted 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 mounted between the bottom plate (49) and the extrusion pad (46).

7. A process for preparing a power battery buffer and thermal insulation pad according to claim 6, characterized in that: The extrusion member (47) comprises a round shaft (471), a paddle (475) is movably mounted inside the round 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 round shaft (471), a sleeve (476) is sleeved on the outer surface of the rotating rod (473), a fitting sheet (472) and an extrusion frame (474) are respectively fixedly mounted on the outer surface of the sleeve (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) comprises a support column (62), an extension frame (63) is fixedly mounted on the top of the support column (62), a slot (61) is fixedly mounted at the middle of the top of the extension frame (63), an operating table (65) is fixedly mounted inside 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).

9. A 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), 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 matched with the through column (93).

10. A 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 rotation 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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