Heat insulation pad with composite frame structure

Abstract

The utility model discloses a composite frame structure heat insulation pad which comprises a composite structure frame, a packaging layer and a heat insulation core material, the composite structure frame comprises a first buffering piece and a second buffering piece, the first buffering piece is provided with a core material containing position and a buffering containing position, the heat insulation core material is arranged in the core material containing position, and the buffering containing position is provided with a buffering groove. A second buffer piece is arranged in the buffer containing position, the thickness of the second buffer piece is not larger than that of the first buffer piece, and the composite structure frame and the heat insulation core material are packaged through the packaging layer. The two buffer pieces are spliced into the composite buffer frame to replace silicon rubber with high density, so that the weight and the cost of the buffer frame are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal insulation pads, and in particular relates to a thermal insulation pad with a composite frame structure. Background Art

[0002] In order to ensure the safety of passengers, new energy power battery packs usually use flame-retardant insulation materials between battery cells to delay or block the transfer of heat and flames during thermal runaway, buy time for passengers to escape and reduce property losses. During the charging and discharging process of new energy power battery cells, the volume of the battery cells will expand and contract repeatedly. If the battery cells are squeezed when expanding, it will affect the cycle life of the battery cells. Therefore, the insulation pad also needs to have a certain buffering capacity.

[0003] To achieve the above purpose, the cushioning material is often made into a U-shaped frame to form a receiving cavity, and then the core material is placed in the receiving cavity, and the two are encapsulated with a film material. However, because the conventional cushioning material is silicone rubber, although it has a good cushioning effect, it has the defects of high density and high cost. Utility Model Content

[0004] The utility model provides a composite frame structure heat insulation pad, which uses a composite frame to replace silicone rubber, so that the composite frame has excellent buffering performance and is light in weight, thereby reducing the cost of buffer parts.

[0005] The technical solution adopted by the utility model is:

[0006] A composite frame structure heat insulation pad includes a composite structure frame, an encapsulation layer and a heat insulation core material, the composite structure frame includes a first buffer and a second buffer, the first buffer is provided with a core material accommodating position and a buffer accommodating position, the core material accommodating position is provided with a heat insulation core material, the buffer accommodating position is provided with a second buffer, the thickness of the second buffer is not greater than the thickness of the first buffer, and the encapsulation layer encapsulates the composite structure frame and the heat insulation core material. The two buffers are assembled into a composite buffer frame to replace the high-density silicone rubber, thereby reducing the weight and cost of the buffer frame.

[0007] As a preferred solution of the utility model, the deformation amount of the first buffer under a pressure of 0-1 MPa is not less than the deformation amount of the second buffer under a pressure of 0-1 MPa. Two different buffer materials can make the buffering performance of the composite structure frame more superior.

[0008] As a preferred solution of the utility model, a buffer accommodation position is provided on at least one side of the first buffer component located at the core material accommodation position. That is, one or more buffer accommodation positions can be provided on one side of the first buffer component, or one or more buffer accommodation positions can be provided on two opposite sides, two adjacent sides, three sides or four sides as required.

[0009] As a preferred solution of the utility model, the core material accommodation position is an accommodation hole or an accommodation groove; the buffer accommodation position is an accommodation hole or an accommodation groove. The accommodation position can be a hole or a groove, as long as it can reduce the overall weight and facilitate the installation of the second buffer. Embedded installation facilitates the installation of the second buffer into the first buffer, reduces the usage of the first buffer that occupies a larger proportion, and reduces the overall weight. It is preferred that the first buffer and the second buffer are made of different materials, which is more conducive to reducing costs while also enhancing the buffering performance of the composite structure frame.

[0010] As a preferred solution of the utility model, the buffer accommodation positions are centrally symmetrically distributed on both sides of the core material accommodation position. The centrally symmetrical arrangement facilitates processing and assembly and simplifies the production process.

[0011] As a preferred solution of the utility model, the encapsulation layer includes a first encapsulation layer and a second encapsulation layer, the first encapsulation layer encapsulates one working end surface of the first buffer component, and the second encapsulation layer encapsulates the other working end surface of the first buffer component and encapsulates the first buffer component, the second buffer component and the thermal insulation core material.

[0012] As a preferred solution of the utility model, the core material accommodating position and the buffer accommodating position are accommodating holes; the first packaging layer and the core material accommodating position form a first accommodating cavity, and the insulating core material is arranged in the first accommodating cavity; the first packaging layer and the buffer accommodating position form a second accommodating cavity, and the second buffer component is arranged in the second accommodating cavity.

[0013] As a preferred solution of the present invention, the second buffer is a silicone rubber buffer, a ceramic silicone rubber buffer, a natural rubber buffer, a polyurethane buffer or an EPDM rubber buffer.

[0014] As a preferred solution of the present invention, the first buffer is a polyolefin foam buffer, a silicone foam buffer or a polyurethane foam buffer.

[0015] As a preferred embodiment of the present invention, the first buffer includes but is not limited to MPP buffer, CR foam buffer, EVA foam buffer, melamine foam buffer, EPDM foam buffer, EPE pearl cotton buffer, PVC foam buffer, PE foam buffer, PP foam buffer, XPE foam buffer, IXPE foam buffer, and acrylic foam buffer.

[0016] The utility model uses a composite structure frame formed by a combined structure of a first buffer component and a second buffer component to replace a conventional silicone rubber frame, so that the composite structure frame still has excellent buffering performance after packaging, and can reduce the weight and cost of the buffer structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of Example 1.

[0019] Figure 2 This is a schematic diagram of the structure of Example 2.

[0020] Figure 3 This is a schematic diagram of the structure of Example 3.

[0021] Figure 4 This is a schematic diagram of the structure of Example 4. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1:

[0024] A composite frame structure thermal insulation pad, such as Figure 1 As shown, it includes a composite structural frame, a packaging layer and a heat insulation core material, and the composite structural frame includes a first buffer component 1 and a second buffer component 2.

[0025] The second buffer member may be any one of a silicone rubber buffer member, a ceramic silicone rubber buffer member, a natural rubber buffer member, a polyurethane buffer member or an EPDM rubber buffer member.

[0026] The first buffer is a polyolefin foam buffer, a silicone foam buffer or a polyurethane foam buffer, including but not limited to an MPP buffer, a silicone foam buffer, a PU foam buffer, a CR foam buffer, an EVA foam buffer, a melamine foam buffer, an EPDM foam buffer, an EPE pearl cotton buffer, a PVC foam buffer, a PE foam buffer, a PP foam buffer, an XPE foam buffer, an IXPE foam buffer, and an acrylic foam buffer.

[0027] The first buffer 1 is provided with a core material accommodation position and a buffer accommodation position, a heat insulating core material 3 is provided in the core material accommodation position, a second buffer 2 is provided in the buffer accommodation position, the thickness of the second buffer is not greater than the thickness of the first buffer, and the deformation of the first buffer under a pressure of 0-1MPa is not less than the deformation of the second buffer under a pressure of 0-1MPa. The packaging layer encapsulates the composite structure frame and the heat insulating core material, and the two buffers are assembled into a composite buffer frame, replacing the high-density silicone rubber, reducing the weight and cost of the buffer frame.

[0028] The buffer accommodation position is provided in that at least one side of the first buffer component at the core material accommodation position is provided with a buffer accommodation position, that is, one or more buffer accommodation positions can be provided on one side of the first buffer component, or one or more buffer accommodation positions can be provided on two opposite sides, two adjacent sides, three sides or four sides as required. This embodiment is demonstrated by taking two buffer accommodation positions respectively provided on two short sides of the first buffer component as an example.

[0029] The core material receiving position is a receiving hole; the buffer receiving position is a receiving hole, and of course the receiving position can be a hole or a groove, as long as it can reduce the overall weight and facilitate the installation of the second buffer. Embedded installation is used to facilitate the installation of the second buffer into the first buffer, reduce the usage of the first buffer that occupies a larger proportion, and reduce the overall weight. It is preferred that the first buffer and the second buffer are made of different materials, which is more conducive to reducing costs while also enhancing the buffering performance of the composite structure frame.

[0030] The encapsulation layer includes a first encapsulation layer and a second encapsulation layer, the first encapsulation layer encapsulates a working end face of the first buffer component, the first encapsulation layer and the core material accommodating position form a first accommodating cavity, and the thermal insulation core material is arranged in the first accommodating cavity; the first encapsulation layer and the buffer accommodating position form a second accommodating cavity, and the second buffer component is arranged in the second accommodating cavity; the second encapsulation layer encapsulates the other working end face of the first buffer component and encapsulates the first buffer component, the second buffer component and the thermal insulation core material.

[0031] Embodiment 2:

[0032] A composite frame structure heat insulation pad, such as Figure 2 As shown, a buffer accommodation position is respectively provided on two short sides of the first buffer component, and the buffer accommodation position forms a centrally symmetrical structure with respect to the core material accommodation position, and the rest is the same as that of embodiment 1.

[0033] Embodiment 3:

[0034] A composite frame structure heat insulation pad, such as Figure 3As shown, a buffer accommodating position is respectively set at the four corners of the core material accommodating position, and the buffer accommodating position is L-shaped, which is equivalent to setting buffer accommodating positions on the four sides of the first buffer component 1, and the buffer accommodating positions on two adjacent sides are connected to form an L-shape as an L-shaped buffer accommodating position, and non-L-shaped buffer accommodating positions can also be set between the corners, and the rest are the same as Example 1.

[0035] Embodiment 4:

[0036] A composite frame structure heat insulation pad, such as Figure 4 As shown, a buffer accommodation position is respectively arranged on the two short sides of the core material accommodation position, and the buffer accommodation position is communicated with the core material accommodation position, and the rest is the same as that of embodiment 1.

[0037] In the description of this specification, the description of reference terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A composite frame structure thermal insulation pad, characterized in that: It includes a composite structure frame, an encapsulation layer and an insulating core material. The composite structure frame includes a first buffer component and a second buffer component. The first buffer component is provided with a core material accommodating position and a buffer accommodating position. The core material accommodating position is provided with an insulating core material. The buffer accommodating position is provided with a second buffer component. The thickness of the second buffer component is not greater than that of the first buffer component. The encapsulation layer encapsulates the composite structure frame and the insulating core material.

2. A composite frame structure thermal insulation pad according to claim 1, characterized in that: The deformation amount of the first buffer under a pressure of 0-1 MPa is not less than the deformation amount of the second buffer under a pressure of 0-1 MPa.

3. A composite frame structure thermal insulation pad according to claim 1 or 2, characterized in that: A buffer accommodation position is arranged on at least one side of the first buffer component located at the core material accommodation position.

4. A composite frame structure thermal insulation pad according to claim 3, characterized in that: The core material accommodating position is an accommodating hole or an accommodating groove; the buffer accommodating position is an accommodating hole or an accommodating groove.

5. The composite frame structure thermal insulation pad according to claim 3, characterized in that: The buffer accommodation positions are centrally symmetrically distributed on both sides of the core material accommodation position.

6. The composite frame structure thermal insulation pad according to claim 3, characterized in that: The encapsulation layer comprises a first encapsulation layer and a second encapsulation layer, wherein the first encapsulation layer encapsulates one working end surface of the first buffer component, and the second encapsulation layer encapsulates the other working end surface of the first buffer component and encapsulates the first buffer component, the second buffer component and the heat insulation core material.

7. A composite frame structure thermal insulation pad according to claim 6, characterized in that: The core material accommodating position and the buffer accommodating position are accommodating holes; the first packaging layer and the core material accommodating position form a first accommodating cavity, and the thermal insulation core material is arranged in the first accommodating cavity; the first packaging layer and the buffer accommodating position form a second accommodating cavity, and the second buffer is arranged in the second accommodating cavity.

8. A composite frame structure thermal insulation pad according to any one of claims 1 to 7, characterized in that: The second buffer is a silicone rubber buffer, a ceramic silicone rubber buffer, a natural rubber buffer, a polyurethane buffer or an EPDM rubber buffer.

9. A composite frame structure thermal insulation pad according to claim 8, characterized in that: The first buffer is a polyolefin foam buffer, a silicone foam buffer or a polyurethane foam buffer.

10. A composite frame structure thermal insulation pad according to claim 9, characterized in that: The first buffer component includes but is not limited to an MPP buffer component, a CR foam buffer component, an EVA foam buffer component, a melamine foam buffer component, an EPDM foam buffer component, an EPE pearl cotton buffer component, a PVC foam buffer component, a PE foam buffer component, a PP foam buffer component, an XPE foam buffer component, an IXPE foam buffer component, and an acrylic foam buffer component.

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