CN112993472A - Construction process of passenger car flame retardant and flame-retardant shell - Google Patents
Construction process of passenger car flame retardant and flame-retardant shell Download PDFInfo
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- CN112993472A CN112993472A CN202110234790.XA CN202110234790A CN112993472A CN 112993472 A CN112993472 A CN 112993472A CN 202110234790 A CN202110234790 A CN 202110234790A CN 112993472 A CN112993472 A CN 112993472A
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- flame
- retardant
- sheet
- flame retardant
- shell plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Laminated Bodies (AREA)
Abstract
本申请涉及一种乘用车阻燃剂的施工工艺及阻燃壳体，工艺包括如下步骤：S1：将阻燃剂预加工成阻燃片材；S2：将阻燃片材放置于壳板上；以及，S3：进行加热固化，阻燃片材粘附固化于壳板上。将阻燃剂加工成阻燃片材时可在专门的车间制作，其产生的大量危固废料及VOC可被集中处理，将阻燃剂单独成型还能降低阻燃剂的浪费，再将阻燃片材放置在壳板上，不用在壳板上喷涂，避免喷涂时为了成型在成型模板上浪费阻燃剂，也无需连喷涂车间一起密封，降低了生产的难度与危固废料及VOC。
The present application relates to a construction process of a flame retardant for passenger vehicles and a flame retardant shell. The process includes the following steps: S1: preprocessing the flame retardant into a flame retardant sheet; S2: placing the flame retardant sheet on the shell plate and, S3: heating and curing, the flame retardant sheet is adhered and cured on the shell plate. When the flame retardant is processed into a flame retardant sheet, it can be produced in a special workshop, and a large amount of hazardous solid waste and VOC generated can be processed in a centralized manner. The combustible sheet is placed on the shell plate and does not need to be sprayed on the shell plate, which avoids wasting flame retardants on the molding template for forming during spraying, and does not need to be sealed together with the spraying workshop, which reduces the difficulty of production, hazardous solid waste and VOC.
Description
Technical Field
The application relates to the field of flame-retardant parts, in particular to a construction process of a flame retardant for a passenger vehicle and a flame-retardant shell.
Background
At present, with the continuous accumulation of new energy technologies, new energy automobiles are more and more widely applied, and energy of the new energy automobiles comes from batteries carried by the new energy automobiles. The new energy automobile generally adopts a lithium ion battery, and the battery provides energy for the motor. When driving a new energy automobile, the temperature of the battery can be increased along with the output of energy while the battery provides energy for the motor.
The temperature variation of the battery is determined by two factors, i.e., heat generation and heat dissipation. The generation of heat in lithium ion batteries is primarily due to thermal decomposition and reactions between the battery materials. The heat of the battery system is reduced, the high-temperature resistance of the system is improved, and the battery system is safe. The capacity of a power type lithium ion battery adopted by an electric automobile is generally larger than 10Ah, the local temperature of the power type lithium ion battery is usually higher than 55 ℃ during normal work, the internal temperature of the power type lithium ion battery can reach more than 300 ℃, and under the conditions of high temperature or high-rate charge and discharge, the heat release of a high-energy electrode and the temperature rise of a combustible organic solvent can cause a series of side reactions, and finally thermal runaway and the combustion or explosion of the battery are caused. Besides thermal runaway caused by chemical reaction factors of the lithium ion battery, thermal instability of the lithium ion battery can be caused by short circuit caused by human factors such as overheating, overcharging and mechanical impact, so that safety accidents are caused. Therefore, research on the flame retardance of PACK under the condition of not completely solving and improving the safety performance of the lithium ion battery has important practical significance.
The existing battery box loaded with the lithium ion battery realizes flame retardance and prolongs escape time by spraying a flame retardant on the inner wall of the battery box, thereby solving the problem of flame retardance
In view of the above-mentioned related art, the inventor believes that the existing method of spraying the flame retardant on the housing is a defect that a large amount of automation equipment is required and a large amount of hazardous waste and VOC are generated due to high-pressure spraying.
Disclosure of Invention
In order to reduce a large amount of hazardous solid wastes and VOC generated in the production of the shell with the flame retardant material, the application provides a construction process of a flame retardant for a passenger car and a flame retardant shell.
In a first aspect, the construction process of the passenger car flame retardant provided by the application adopts the following technical scheme:
a construction process of a passenger car flame retardant comprises the following steps:
s1: preprocessing a flame retardant into a flame-retardant sheet;
s2: placing the flame-retardant sheet on a shell plate; and the number of the first and second groups,
s3: heating and curing are carried out, and the flame-retardant sheet is adhered and cured on the shell plate.
Through adopting above-mentioned technical scheme, can make in special workshop when processing into fire-retardant sheet with the fire retardant, the solid waste material of a large amount of dangers that its produced and VOC can be by centralized processing, with the waste that the fire retardant shaping alone can also reduce the fire retardant, place fire-retardant sheet on the coverboard again, need not spray on the coverboard, waste fire retardant on the moulded template for the shaping when avoiding the spraying, also need not to seal together in the spraying workshop even, the degree of difficulty and the solid waste material of danger and VOC of production have been reduced.
Preferably, in S2, the method further includes:
s21: a thermosetting adhesive is placed between the flame retardant sheet and the skin.
Through adopting above-mentioned technical scheme, thermosetting adhesive lets be connected more firmly between fire-retardant sheet and the shell plate.
Preferably, in S3, the method further includes:
s31: and (3) putting the flame-retardant sheet and the shell plate into a heating curing furnace for adhesion curing at the temperature of 90-115 ℃, wherein the curing time is 30-45 minutes.
Through adopting above-mentioned technical scheme, realize the thermosetting between fire-retardant sheet material and the shell plate.
Preferably, in S2, before S21, the method further includes:
s20: and die-pressing and shearing the flame-retardant sheet into a shape matched with the shell plate.
By adopting the technical scheme, the formed flame-retardant sheet is directly used, the flame-retardant sheet does not need to be processed on the shell plate, and the waste amount of materials is reduced.
Preferably, in S3, before S31, the method further includes:
s30: the position between the flame retardant sheet and the shell plate is preliminarily positioned, and then the relative position between the flame retardant sheet and the shell plate is fixed by a thermosetting adhesive.
By adopting the technical scheme, the yield of products is ensured.
Preferably, the flame retardant comprises:
a mixture of flame retardant material, carbon fiber and filler;
and/or, a sheet molding compound;
and/or, a carbon fiber reinforced composite;
and/or the long glass fiber flame-retardant reinforced polypropylene material.
In a second aspect, the flame retardant housing provided by the present application adopts the following technical scheme:
the flame-retardant shell comprises a shell plate, wherein one surface of the shell plate is abutted with a flame-retardant sheet, and the flame-retardant sheet is subjected to thermosetting forming after being abutted with the shell plate.
Through adopting above-mentioned technical scheme, place fire-retardant sheet on the coverboard, need not spray on the coverboard, in order the extravagant fire retardant of shaping on the moulded die plate during avoiding the spraying, also need not to seal together in the spraying workshop even, reduced the degree of difficulty and the dangerous solid waste material and VOC of production.
Preferably, a thermosetting adhesive is provided between the flame retardant sheet and the shell plate.
Through adopting above-mentioned technical scheme, thermosetting adhesive lets be connected more firmly between fire-retardant sheet and the shell plate.
Preferably, the flame retardant comprises:
a mixture of flame retardant material, carbon fiber and filler;
and/or, a sheet molding compound;
and/or, a carbon fiber reinforced composite;
and/or the long glass fiber flame-retardant reinforced polypropylene material.
In summary, the present application includes at least one of the following beneficial technical effects: the flame retardant is firstly processed into the flame-retardant sheet, and then the flame-retardant sheet is placed on the shell plate without being sprayed on the shell plate, so that a large amount of hazardous solid waste and VOC (volatile organic compounds) can be reduced by processing the flame-retardant sheet, the waste of the flame retardant is reduced, the cost is reduced, and the waste of the flame retardant during spraying is avoided.
Drawings
FIG. 1 is a process flow diagram of a construction process of a passenger car flame retardant in an embodiment of the application;
FIG. 2 is a schematic view of the overall structure of a flame retardant housing in an embodiment of the present application;
fig. 3 is a sectional view of a flame-retardant housing in an embodiment of the present application.
Reference numerals: 1. a shell plate; 2. a flame retardant sheet; 3. a thermosetting adhesive.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a construction process of a passenger car flame retardant.
Referring to fig. 1, the construction process of the passenger car flame retardant comprises the following steps:
s1: the flame retardant was preprocessed into a flame-retardant sheet 2. The flame retardant comprises: a mixture of flame retardant material, carbon fiber and filler; and/or, a sheet molding compound; and/or, a carbon fiber reinforced composite; and/or the long glass fiber flame-retardant reinforced polypropylene material. The flame retardant is initially in a fluid state, is contained in a barrel, and is preprocessed into a sheet-shaped solid state. At present, the battery box realizes flame retardance by a flame retardant spraying method and prolongs escape time to solve the problem of flame retardance. The flame retardant spraying needs to invest a large amount of automatic equipment and a large amount of hazardous solid waste and VOC are generated due to high-pressure spraying. In contrast, the method processes the flame retardant into a sheet in advance, and can fully utilize all materials. No waste material is produced. The use is that only the sheet needs to be die cut into the desired shape.
S2: the flame retardant sheet 2 is placed on the skin plate 1. S2, further including: s20: the flame-retardant sheet 2 is die-cut into a shape fitting the shell plate 1. S21: a thermosetting adhesive 3 is placed between the flame retardant sheet 2 and the shell plate 1.
S3: heating and curing are carried out, and the flame-retardant sheet 2 is adhered and cured on the shell plate 1. S3, further including: s30: the position between the flame-retardant sheet 2 and the shell plate 1 is preliminarily positioned, and then the relative position between the flame-retardant sheet 2 and the shell plate 1 is fixed by the thermosetting adhesive 3. S31: and (3) putting the flame-retardant sheet 2 and the shell plate 1 into a heating curing furnace for adhesion curing at the temperature of 90-115 ℃, wherein the curing time is 30-45 minutes. The thermosetting between the flame-retardant sheet 2 and the shell plate 1 is realized, and the yield of the product is ensured.
In one case, the flame-retardant sheet 2 and the shell plate 1 are put into a heating curing furnace for adhesion curing at 90 ℃ for 30 minutes; in another case, the flame-retardant sheet 2 and the shell plate 1 are put into a heating curing furnace for adhesion curing at 102 ℃, and the curing time is 37.5 minutes; in another case, the flame-retardant sheet 2 and the shell plate 1 are put into a heating curing oven to be adhered and cured at 115 ℃ for 45 minutes.
The implementation principle of the embodiment is as follows: the flame retardant can be manufactured in a special workshop when being processed into the flame-retardant sheet 2, the formed flame-retardant sheet 2 is directly used, the flame-retardant sheet 2 does not need to be processed on the shell plate 1, and the waste amount of materials is reduced. The flame retardant is composed of a resin material, a flame retardant material, carbon fibers and a filler, because the resin has better thermoplasticity. The back surface of the sheet is coated with a thermosetting adhesive 3. And the workpiece is initially positioned and then enters a heating curing furnace for adhesion curing at the temperature of 90-115 ℃. The flame retardant effect can be achieved. The thermosetting adhesive 3 makes the connection between the flame-retardant sheet 2 and the skin plate 1 more firm. A large amount of dangers that produce when fire-retardant sheet 2 is made in special workshop can be handled by the centralized processing admittedly, with the fire retardant single shaping waste that can also reduce the fire retardant, place fire-retardant sheet 2 on coverboard 1 again, need not be on coverboard 1 spraying, waste fire retardant on the moulded die plate for the shaping when avoiding the spraying, also need not to seal together in the spraying workshop even, reduced the degree of difficulty of production and danger solid waste and VOC.
Another embodiment of the present application discloses a flame retardant housing.
Referring to fig. 2 and 3, the flame-retardant housing includes a shell plate 1, a flame-retardant sheet 2 is abutted to one surface of the shell plate 1, and the flame-retardant sheet 2 is formed by thermosetting after being abutted to the shell plate 1. A thermosetting adhesive 3 may be provided between the flame retardant sheet 2 and the shell plate 1. The thermosetting adhesive 3 makes the connection between the flame-retardant sheet 2 and the skin plate 1 more firm.
The flame retardant comprises: a mixture of flame retardant material, carbon fiber and filler; and/or, a sheet molding compound; and/or, a carbon fiber reinforced composite; and/or the long glass fiber flame-retardant reinforced polypropylene material.
The implementation principle of the embodiment is as follows: the flame-retardant sheet 2 is placed on the shell plate 1, and is not required to be sprayed on the shell plate 1, so that the flame retardant is prevented from being wasted on a forming die plate for forming during spraying, a spraying workshop is not required to be sealed together, and the difficulty of production and hazardous solid waste and VOC are reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A construction process of a passenger car flame retardant is characterized by comprising the following steps: the method comprises the following steps:
s1: preprocessing a flame retardant into a flame-retardant sheet (2);
s2: placing the flame-retardant sheet (2) on a shell plate (1); and the number of the first and second groups,
s3: heating and curing are carried out, and the flame-retardant sheet (2) is adhered and cured on the shell plate (1).
2. The construction process of the flame retardant for passenger cars according to claim 1, characterized in that: in S2, the method further includes:
s21: a thermosetting adhesive (3) is placed between the flame-retardant sheet (2) and the shell plate (1).
3. The construction process of the flame retardant for passenger cars according to claim 1, characterized in that: in S3, the method further includes:
s31: and (3) putting the flame-retardant sheet (2) and the shell plate (1) into a heating curing furnace for adhesion curing at the temperature of 90-115 ℃, wherein the curing time is 30-45 minutes.
4. The construction process of the flame retardant for passenger cars according to claim 1, characterized in that: in S2, before S21, the method further includes:
s20: and die-pressing and shearing the flame-retardant sheet (2) into a shape matched with the shell plate (1).
5. The construction process of the flame retardant for passenger cars according to claim 2, characterized in that: in S3, before S31, the method further includes:
s30: the position between the flame-retardant sheet (2) and the shell plate (1) is initially positioned, and then the relative position between the flame-retardant sheet (2) and the shell plate (1) is fixed by a thermosetting adhesive (3).
6. The construction process of the flame retardant for passenger cars according to claim 1, characterized in that: the flame retardant comprises:
a mixture of flame retardant material, carbon fiber and filler;
and/or, a sheet molding compound;
and/or, a carbon fiber reinforced composite;
and/or the long glass fiber flame-retardant reinforced polypropylene material.
7. A flame retardant housing, characterized by: the flame-retardant sheet material is characterized by comprising a shell plate (1), wherein a flame-retardant sheet material (2) is abutted to one surface of the shell plate (1), and the flame-retardant sheet material (2) is subjected to thermosetting forming after being abutted to the shell plate (1).
8. The flame retardant housing of claim 7 wherein: a thermosetting adhesive (3) is arranged between the flame-retardant sheet (2) and the shell plate (1).
9. The flame retardant housing of claim 7 wherein: the flame retardant comprises:
a mixture of flame retardant material, carbon fiber and filler;
and/or, a sheet molding compound;
and/or, a carbon fiber reinforced composite;
and/or the long glass fiber flame-retardant reinforced polypropylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110234790.XA CN112993472A (en) | 2021-03-03 | 2021-03-03 | Construction process of passenger car flame retardant and flame-retardant shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110234790.XA CN112993472A (en) | 2021-03-03 | 2021-03-03 | Construction process of passenger car flame retardant and flame-retardant shell |
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| Publication Number | Publication Date |
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| CN112993472A true CN112993472A (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110234790.XA Pending CN112993472A (en) | 2021-03-03 | 2021-03-03 | Construction process of passenger car flame retardant and flame-retardant shell |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204230324U (en) * | 2014-11-13 | 2015-03-25 | 嘉兴启晟碳材料有限公司 | A kind of high-strength high temperature-resistant flame protection device of batteries of electric automobile |
| CN105482255A (en) * | 2015-12-30 | 2016-04-13 | 上海普利特复合材料股份有限公司 | Environment-friendly flame-retardant long-glass-fiber-reinforced polypropylene composite material and preparation method thereof |
| CN106977894A (en) * | 2017-04-20 | 2017-07-25 | 中航锂电（洛阳）有限公司 | A kind of composite flame-proof plastic material, composite flame-proof working of plastics, the battery case and lithium ion battery of vest structure |
| US20190252656A1 (en) * | 2016-11-04 | 2019-08-15 | Fredy Doll Beteiligungs-GmbH | Motor vehicle battery module, motor vehicle having an electric drive motor and a battery module, and method for producing a motor vehicle battery module and a motor vehicle |
| CN111727120A (en) * | 2018-02-20 | 2020-09-29 | 积水化学工业株式会社 | Fire-resistant laminate and battery |
| CN112384364A (en) * | 2018-07-11 | 2021-02-19 | 麦格纳外饰公司 | Fire resistant SMC laminate |
| CN215119103U (en) * | 2021-03-03 | 2021-12-10 | 上海尧崇智能科技有限公司 | Flame-retardant shell |
-
2021
- 2021-03-03 CN CN202110234790.XA patent/CN112993472A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204230324U (en) * | 2014-11-13 | 2015-03-25 | 嘉兴启晟碳材料有限公司 | A kind of high-strength high temperature-resistant flame protection device of batteries of electric automobile |
| CN105482255A (en) * | 2015-12-30 | 2016-04-13 | 上海普利特复合材料股份有限公司 | Environment-friendly flame-retardant long-glass-fiber-reinforced polypropylene composite material and preparation method thereof |
| US20190252656A1 (en) * | 2016-11-04 | 2019-08-15 | Fredy Doll Beteiligungs-GmbH | Motor vehicle battery module, motor vehicle having an electric drive motor and a battery module, and method for producing a motor vehicle battery module and a motor vehicle |
| CN106977894A (en) * | 2017-04-20 | 2017-07-25 | 中航锂电（洛阳）有限公司 | A kind of composite flame-proof plastic material, composite flame-proof working of plastics, the battery case and lithium ion battery of vest structure |
| CN111727120A (en) * | 2018-02-20 | 2020-09-29 | 积水化学工业株式会社 | Fire-resistant laminate and battery |
| CN112384364A (en) * | 2018-07-11 | 2021-02-19 | 麦格纳外饰公司 | Fire resistant SMC laminate |
| CN215119103U (en) * | 2021-03-03 | 2021-12-10 | 上海尧崇智能科技有限公司 | Flame-retardant shell |
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