阅读说明：本技术 一种汽车空调ptc系统及其加工方法 (Automobile air conditioner PTC system and processing method thereof ) 是由 周家强 赵晨阳 张仕伟 潘帮斌 于 2020-10-23 设计创作，主要内容包括：本发明提供一种应用于汽车空调系统技术领域的汽车空调PTC系统,本发明还涉及一种汽车空调PTC系统加工方法,所述的汽车空调PTC系统的端口安装部(2)上设置端口安装口Ⅰ(3)和端口安装口Ⅱ(4),PTC系统框架(1)的安装腔体(5)内安装多个电器元件(6),端口安装口Ⅰ(3)和端口安装口Ⅱ(4)分别与安装腔体(5)连通,安装腔体(5)内注入防水胶块(7),本发明的汽车空调PTC系统及其加工方法,能够对系统的元器件及线束实现全面保护,使得车空调PTC防水性能有效满足防水指标IP67的要求,有效消除了系统的元器件进水造成的线束短路进而导致迅速升温燃烧等安全隐患。(The invention provides a PTC system of an automobile air conditioner, which is applied to the technical field of the automobile air conditioner system, and also relates to a processing method of the PTC system of the automobile air conditioner, the automobile air conditioner PTC system and the processing method thereof can realize comprehensive protection on components and wiring harnesses of the system, the PTC waterproof performance of the vehicle air conditioner can effectively meet the requirement of a waterproof index IP67, and potential safety hazards such as rapid heating and combustion caused by wire harness short circuit due to water inflow of components of the system are effectively eliminated.)

1. A vehicle air conditioner PTC system which characterized in that: the PTC electric appliance sealing device comprises a PTC system frame (1), a port installation part (2) is arranged at the front part of the PTC system frame (1), a port installation port I (3) and a port installation port II (4) are arranged on the port installation part (2), a hollow installation cavity (5) is arranged in the PTC system frame (1), a plurality of electric appliance elements (6) are installed in the installation cavity (5), the port installation port I (3) and the port installation port II (4) are respectively communicated with the installation cavity (5), a waterproof rubber block (7) is injected into the installation cavity (5), the waterproof rubber block (7) is arranged into a structure capable of wrapping and isolating the electric appliance elements (6), the waterproof rubber block (6) is arranged into a structure capable of being poured into the installation cavity (5) from the port installation port I (3) and/or the port installation port II (4) before curing, an anode port (8) is arranged into a structure capable of being clamped in the port installation port (3), the negative electrode port (9) is arranged to be of a structure capable of being clamped in the port mounting port II (4), and the electrical element (6) is connected with the positive electrode port (8) and the negative electrode port (9) through connecting wires respectively.

2. A vehicle air conditioner PTC system according to claim 1, wherein: the waterproof rubber block (7) in the safety cavity (4) of the automobile air conditioner PTC system is of a structure formed by mixing and curing liquid A/B two-component high-temperature vulcanized silicone rubber.

3. A PTC system for an air conditioner in a vehicle according to claim 1 or 2, wherein: the electrical appliance element (6) comprises a PTC core body (12), a silica gel protective sleeve (13), a middle partition plate (14), a ceramic heating sheet (15), a copper electrode (16) and a PI film (17).

4. A PTC system for an air conditioner in a vehicle according to claim 1 or 2, wherein: PTC system frame (1) including installation cavity (5), PTC system center (10) and PTC system frame (11), PTC system center (10) are located between port installation department (2) and PTC system frame (11), set up installation cavity (5) in PTC system frame (11).

5. A vehicle air conditioner PTC system according to claim 4, characterized in that: the PTC system framework (1) of the automobile air conditioner PTC system comprises an installation cavity (5), a PTC system middle frame (10) and a PTC system outer frame (11) which are of an integrated structure.

6. A processing method of an automobile air conditioner PTC system is characterized in that: the processing method of the automobile air conditioner PTC system comprises the following processing steps:

1) a, B the components are stirred respectively in a manual mode or a mechanical mode and then mixed;

2) putting the mixed glue into an environment with the vacuum degree of 0.08-0.1MPa for vacuum pumping treatment to complete defoaming treatment, wherein the vacuum pumping treatment lasts for 2-3 minutes;

3) pouring the mixed glue into the mounting cavity (5) from the port mounting port I (3) and/or the port mounting port II (4) before curing;

4) the mixed glue is poured into the mounting cavity (5) and then fills the gap part between the electrical appliance elements (6) in the mounting cavity (5), and the mixed glue wraps and isolates the electrical appliance elements (6);

5) and (3) carrying out room-temperature placing curing or heating curing on the automobile air conditioner PTC system filled with the mixed glue, and coating and isolating each electrical appliance element (6) after the mixed glue is cured to form a waterproof glue block (7).

7. A vehicle air conditioner PTC system according to claim 6, characterized in that: when glue after mixing is poured into the installation cavity (5) from the port mounting port I (3) and/or the port mounting port II (4) before solidification, the glue after mixing is improved in flowing and leveling when the glue is continuously shaken for the automobile air conditioner PTC system during pouring.

8. A PTC system for vehicle air conditioners according to claim 6 or 7, wherein: when the mixed glue is poured into the mounting cavity (5) from the port mounting port I (3) and/or the port mounting port II (4) before curing, processing is carried out by adopting processing equipment, the processing equipment comprises a vibration part, and the vibration part can clamp and shake the PTC system of the automobile air conditioner.

9. A PTC system for vehicle air conditioners according to claim 6 or 7, wherein: the mixed glue is contacted with an organic compound N, P, S, contains ionic compounds of Sn, Pb, Hg and As elements, and does not solidify when containing alkyne and polyvinyl compounds, and in order to avoid the phenomenon, when the automobile air conditioner PTC system is assembled, rosin and soldering flux remained on each component of the automobile air conditioner PTC system need to be wiped off, and meanwhile, soldering tin with low lead content is used.

10. A PTC system for vehicle air conditioners according to claim 6 or 7, wherein: before the mixed glue is poured into the mounting cavity (5) from the port mounting port I (3) and/or the port mounting port II (4) before curing, the automobile air conditioner PTC system is kept clean and dry.

Technical Field

The invention belongs to the technical field of automobile air-conditioning systems, and particularly relates to an automobile air-conditioning PTC system and a processing method thereof.

Background

At present, the waterproof requirement of electrical components of an automobile air conditioning system is higher and higher, various risks need to be considered during design, and design measures need to be taken to avoid the risks. The PTC system of the automobile air conditioner is used for preventing the water from entering the PTC system, and the PTC system is used for preventing the water from entering the PTC system. The existing PTC system of air conditioner (PTC heater in Chinese, PTC heater in English) adopts more waterproof protection modes, such as improved wire harness package, silica gel cap coil protection and the like. However, these precautions only protect a single component, and in PTC applications, various emergencies are encountered, and waterproofing of a single line does not provide full protection of the PTC internal components. Therefore, the technical hidden trouble existing in the prior art cannot be fundamentally eliminated.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the automobile air conditioner PTC system is simple in structure, can comprehensively protect components and harnesses of the system through improvement of the structure and the processing method of the automobile air conditioner PTC system, enables the waterproof performance of the automobile air conditioner PTC to effectively meet the requirement of a waterproof index IP67, effectively eliminates potential safety hazards such as rapid heating and combustion caused by short circuit of the harnesses due to water inflow of the components of the system, and improves the overall safety performance of an automobile.

To solve the technical problems, the invention adopts the technical scheme that:

the invention relates to an automobile air conditioner PTC system, which comprises a PTC system frame, wherein a port installation part is arranged at the front part of the PTC system frame, a port installation port I and a port installation port II are arranged on the port installation part, a hollow installation cavity is arranged in the PTC system frame, a plurality of electrical components are installed in the installation cavity, the port installation port I and the port installation port II are respectively communicated with the installation cavity, a waterproof glue block is injected into the installation cavity, the waterproof glue block is arranged into a structure capable of wrapping and isolating the electrical components, the waterproof glue block is arranged into a structure capable of being injected into the installation cavity from the port installation port I and/or the port installation port II before curing, an anode port is arranged into a structure capable of being clamped in the port installation port, a cathode port is arranged into a structure capable of being clamped in the port installation port II, and the electrical components are respectively connected with the anode port and the cathode port.

The waterproof rubber block in the safety cavity of the automobile air conditioner PTC system is of a structure formed by mixing and curing liquid A/B two-component high-temperature vulcanized silicone rubber.

The electrical element comprises a PTC core body, a silica gel protective sleeve, an intermediate partition plate, a ceramic heating sheet, a copper electrode and a PI film.

The PTC system frame comprises a mounting cavity, a PTC system middle frame and a PTC system outer frame, the PTC system middle frame is located between the port mounting part and the PTC system outer frame, and the mounting cavity is arranged in the PTC system outer frame.

The PTC system frame of the automobile air conditioner PTC system comprises an installation cavity, a PTC system middle frame and a PTC system outer frame which are of an integrated structure.

The invention also relates to a processing method of the automobile air conditioner PTC system, which has simple steps, can comprehensively protect the components and the wiring harness of the system through the improvement of the structure and the processing method of the automobile air conditioner PTC system, ensures that the waterproof performance of the automobile air conditioner PTC system effectively meets the requirement of a waterproof index IP67, effectively eliminates the potential safety hazards of rapid heating combustion and the like caused by the short circuit of the wiring harness caused by the water inflow of the components of the system, and improves the overall safety performance of the automobile.

The processing method of the automobile air conditioner PTC system comprises the following processing steps:

1) a, B the components are stirred respectively in a manual mode or a mechanical mode and then mixed;

2) putting the mixed glue into an environment with the vacuum degree of 0.08-0.1MPa for vacuum pumping treatment to complete defoaming treatment, wherein the vacuum pumping treatment lasts for 2-3 minutes;

3) pouring the mixed glue into the installation cavity from the port installation port I and/or the port installation port II 4 before curing;

4) the mixed glue is filled into the installation cavity and then fills the gap part between each electrical element in the installation cavity, and the mixed glue wraps and isolates each electrical element;

5) and (3) carrying out room-temperature placing curing or heating curing on the automobile air conditioner PTC system filled with the mixed glue, and coating and isolating each electrical appliance element after the mixed glue is cured to form a waterproof glue block.

When glue after will mixing fills the installation cavity internal from port installing port I and/or port installing port II before the solidification, continuously rocks vehicle air conditioner PTC system when filling, improves the flow of glue after mixing, improves the levelling of glue after mixing.

When the mixed glue is poured into the mounting cavity from the port mounting port I and/or the port mounting port II before curing, processing is carried out by adopting processing equipment, the processing equipment comprises a vibration part, and the vibration part can clamp and shake the PTC system of the automobile air conditioner.

The mixed glue is contacted with an organic compound N, P, S, contains ionic compounds of Sn, Pb, Hg and As elements, and does not solidify when containing alkyne and polyvinyl compounds, and in order to avoid the phenomenon, when the automobile air conditioner PTC system is assembled, rosin and soldering flux remained on each component of the automobile air conditioner PTC system need to be wiped off, and meanwhile, soldering tin with low lead content is used.

Before the mixed glue is poured into the installation cavity from the port installation port I and/or the port installation port II before solidification, the automobile air conditioner PTC system is kept clean and dry.

By adopting the technical scheme of the invention, the following beneficial effects can be obtained:

according to the automobile air conditioner PTC system and the processing method thereof, the mounting cavity of the PTC system frame forms a cavity which is communicated with the port mounting port I and the port mounting port II of the port mounting part. Like this, through filling liquid glue for glue gets into the installation cavity and the solidification back, forms waterproof gluey piece, and waterproof gluey piece is filled between pencil, components and parts, reaches the parcel isolation effect with this, and the contact of isolated each components and parts simultaneously realizes waterproof and insulating effect. And through forming waterproof glue piece, realize the embedment to components and parts, not only realize waterproofly, can completely cut off components and parts and external contact moreover, play dampproofing, antifouling, anticorrosion, shockproof, waterproof, insulating and sealed effect simultaneously. The key point is that the waterproof performance of the PTC element is greatly improved, and the waterproof performance can reach the waterproof standard of IP 67. When the PTC system of the automobile air conditioner is processed, firstly A, B components are respectively stirred in a manual mode or a mechanical mode, and then are mixed and stirred to form mixed glue; putting the mixed glue into an environment with the vacuum degree of 0.08-0.1MPa for vacuum pumping treatment to complete defoaming treatment, wherein the vacuum pumping treatment lasts for 2-3 minutes; pouring the mixed glue into the mounting cavity from the port mounting port I and/or the port mounting port II before curing; the mixed glue is filled into the installation cavity and then fills the gap part between each electrical element in the installation cavity, and the mixed glue wraps and isolates each electrical element; and (3) carrying out room-temperature placing curing or heating curing on the automobile air conditioner PTC system filled with the mixed glue, and coating and isolating each electrical appliance element after the mixed glue is cured to form a waterproof glue block. According to the structure, the poured glue is double-component high-temperature vulcanized silicone rubber, has the characteristics of fast flowing and fast curing, can quickly and reliably form a waterproof glue block in the mounting cavity, is good in waterproof performance, excellent in insulating performance, good in weather resistance and aging resistance, can work at the working temperature of minus 40-200 ℃ for a long time, and prolongs the service life. According to the automobile air conditioner PTC system and the processing method thereof, the structural and processing method of the automobile air conditioner PTC system are improved, the components and the wiring harness of the system are comprehensively protected, the waterproof performance of the automobile air conditioner PTC can effectively meet the requirement of a waterproof index IP67, the potential safety hazards of rapid heating combustion and the like caused by wiring harness short circuit due to water inflow of the components of the system are effectively eliminated, and the overall safety performance of an automobile is improved.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

FIG. 1 is a schematic structural diagram of an automotive air conditioning PTC system according to the present invention;

FIG. 2 is a schematic structural diagram of electrical components of the automotive air conditioner PTC system according to the present invention;

FIG. 3 is a schematic diagram of the internal structure of the electrical components of the automotive air conditioning PTC system according to the present invention;

the reference signs are: 1. a PTC system frame; 2. a port mounting section; 3. a port mounting port I; 4. a port mounting port II; 5. installing a cavity; 6. an electrical component; 7. waterproof rubber blocks; 8. a positive port; 9. a negative port; 10. a PTC system middle frame; 11. a PTC system housing; 12. a PTC core; 13. a silica gel protective sleeve; 14. a middle partition plate; 15. a ceramic heating plate; 16. a copper electrode; 17. and (3) a PI film.

Detailed Description

The following detailed description of the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations among the components, the functions and operation principles of the components, will be made by referring to the accompanying drawings and the description of the embodiments:

as shown in the attached drawings 1-3, the invention relates to an automobile air conditioner PTC system, which comprises a PTC system frame 1, wherein the front part of the PTC system frame 1 is provided with a port installation part 2, the port installation part 2 is provided with a port installation port I3 and a port installation port II 4, the PTC system frame 1 is internally provided with a hollow installation cavity 5, a plurality of electrical devices 6 are arranged in the installation cavity 5, the port installation port I3 and the port installation port II 4 are respectively communicated with the installation cavity 5, a waterproof rubber block 7 is injected into the installation cavity 5, the waterproof rubber block 7 is arranged into a structure capable of wrapping and isolating each electrical device 6, the waterproof rubber block 7 is arranged into a structure capable of being poured into the installation cavity 5 from the port installation port I3 and/or the port installation port II 4 before curing, an anode port 8 is arranged into a structure capable of being clamped in the port installation port 3, a cathode port 9 is arranged into a structure capable of being clamped in the port installation port II 4, the electrical component 6 is connected with the positive electrode port 8 and the negative electrode port 9 through connecting wires. With the above structure, the mounting cavity 5 of the PTC system frame 1 forms a cavity which is communicated with the port mounting port i 3 and the port mounting port ii 4 of the port mounting part 2. Before pouring into glue, do not install positive pole port 8 and negative pole port 9 earlier, port installing port I3 and port installing port II 4 communicate with the installation prerequisite, can follow port installing port I3 and/or port installing port II 4 and pour into glue and get into the installation cavity. After the completion of the pouring, the positive port 8 and the negative port 9 are installed. Like this, through filling liquid glue for glue gets into the installation cavity and the solidification back, forms waterproof gluey piece 7, and waterproof gluey piece 7 is filled between pencil, components and parts, reaches the parcel isolation effect with this, and the contact of isolated each components and parts simultaneously realizes waterproof and insulating effect. And through forming waterproof glue piece 7, realize the embedment to components and parts, not only realize waterproofly, can completely cut off components and parts and external contact moreover, play dampproofing, antifouling, anticorrosion, shockproof, waterproof, insulating and sealed effect simultaneously. The key point is that the waterproof performance of the PTC element is greatly improved, and the waterproof performance can reach the waterproof standard of IP 67. When the PTC system of the automobile air conditioner is processed, firstly A, B components are respectively stirred in a manual mode or a mechanical mode, and then are mixed and stirred to form mixed glue; putting the mixed glue into an environment with the vacuum degree of 0.08-0.1MPa for vacuum pumping treatment to complete defoaming treatment, wherein the vacuum pumping treatment lasts for 2-3 minutes; pouring the mixed glue into the mounting cavity 5 from the port mounting port I3 and/or the port mounting port II 4 before curing; the mixed glue is poured into the mounting cavity 5 and then fills the gap part between each electric appliance element 6 in the mounting cavity 5, and the mixed glue wraps and isolates each electric appliance element 6; and (3) carrying out room-temperature placing curing or heating curing on the automobile air conditioner PTC system filled with the mixed glue, and coating and isolating each electrical appliance element 6 after the mixed glue is cured to form a waterproof glue block 7. According to the structure, the poured glue is double-component high-temperature vulcanized silicone rubber, has the characteristics of fast flowing and fast curing, can quickly and reliably form a waterproof glue block in the mounting cavity, is good in waterproof performance, excellent in insulating performance, good in weather resistance and aging resistance, can work at the working temperature of minus 40-200 ℃ for a long time, and prolongs the service life. According to the automobile air conditioner PTC system and the processing method thereof, the structural and processing method of the automobile air conditioner PTC system are improved, the components and the wiring harness of the system are comprehensively protected, the waterproof performance of the automobile air conditioner PTC effectively meets the requirement of a waterproof index IP67, potential safety hazards such as rapid heating and burning caused by wiring harness short circuit due to water inflow of the components of the system are effectively eliminated, and the overall safety performance of an automobile is improved.

The waterproof rubber block 7 in the safety cavity 4 of the automobile air conditioner PTC system is of a structure formed by mixing and curing liquid A/B two-component high-temperature vulcanized silicone rubber. Above-mentioned structure, glue adopts the glue among the prior art, and possesses new function completely, solves brand-new problem. Therefore, the glue is not only used for adhering the components, but also used in the PTC system of the automobile air conditioner, and the waterproof glue block formed by the glue is used as one component of the PTC system of the automobile air conditioner and matched with the related components of the PTC system of the automobile air conditioner, so that the PTC system of the automobile air conditioner has a reliable waterproof function.

The electrical element 6 comprises a PTC core body 12, a silica gel protective sleeve 13, a middle partition plate 14, a ceramic heating sheet 15, a copper electrode 16 and a PI film 17. The connection relationship among the internal components of the electrical component is as follows: the PTC chip is characterized in that a ceramic heating sheet 15 is embedded in an opening of a middle partition plate 14, two sides of the ceramic heating sheet 15 are respectively pressed by copper electrodes 16, the copper electrodes 16 are embedded in the opening of the middle partition plate 14 and extend out of the end face of the middle partition plate 14 by a certain distance, the middle partition plate 14 is arranged in a silica gel sleeve 13, the outer surface of the silica gel sleeve 13 is wrapped by a PI film 17, heat-conducting silicone grease needs to be evenly coated between the outer surface of the silica gel sleeve 13 and the PI film 17, and when the PTC chip 12 is arranged in the mounting hole, two bosses on two sides of the end face of the middle partition plate 14 are used for limiting in the mounting hole.

PTC system frame 1 include installation cavity 5, PTC system center 10 and PTC system frame 11, PTC system center 10 is located between port installation department 2 and the PTC system frame 11, sets up installation cavity 5 in the PTC system frame 11. The PTC system frame 1 of the automobile air conditioner PTC system comprises an installation cavity 5, a PTC system middle frame 10 and a PTC system outer frame 11 which are of an integrated structure. With the structure, the PTC system frame 1 is easy to process, and the PTC system outer frame 11 can be formed by two parts which can be buckled and connected, so that components can be arranged conveniently.

The invention also relates to a processing method of the automobile air conditioner PTC system, which has simple steps, can comprehensively protect the components and the wiring harness of the system through the improvement of the structure and the processing method of the automobile air conditioner PTC system, ensures that the waterproof performance of the automobile air conditioner PTC system effectively meets the requirement of a waterproof index IP67, effectively eliminates the potential safety hazards of rapid heating combustion and the like caused by the short circuit of the wiring harness caused by the water inflow of the components of the system, and improves the overall safety performance of the automobile.

The processing method of the automobile air conditioner PTC system comprises the following processing steps:

1) a, B the components are stirred respectively in a manual mode or a mechanical mode and then mixed;

2) putting the mixed glue into an environment with the vacuum degree of 0.08-0.1MPa for vacuum pumping treatment to complete defoaming treatment, wherein the vacuum pumping treatment lasts for 2-3 minutes; when carrying out the evacuation, can place the glue after mixing in the evacuation cavity of processing equipment, and evacuation cavity and vacuum pump intercommunication to can make things convenient for the high-efficient evacuation processing that realizes, and vacuum degree and evacuation processing duration during the evacuation can both preset, convenient operation. Moreover, the consistency of glue processing of each batch is high, and the batch processing quality is ensured to meet the requirements.

3) Pouring the mixed glue into the mounting cavity 5 from the port mounting port I3 and/or the port mounting port II 4 before curing; when glue is poured, a pouring pump of the processing equipment can be adopted for pouring, so that the efficiency is high, the consistency is good, and the labor intensity of manual work is reduced.

4) The mixed glue is poured into the mounting cavity 5 and then fills the gap part between each electric appliance element 6 in the mounting cavity 5, and the mixed glue wraps and isolates each electric appliance element 6; the mixed glue is poured in a liquid state, can flow efficiently, fills the gap part and is solidified.

5) And (3) carrying out room-temperature placing curing or heating curing on the automobile air conditioner PTC system filled with the mixed glue, and coating and isolating each electrical appliance element 6 after the mixed glue is cured to form a waterproof glue block 7. When curing is carried out, because the curing efficiency of the glue is greatly related to the temperature during curing, the glue can be placed and cured at room temperature in summer, and if the glue is placed and cured at room temperature in winter, the curing time can be prolonged, so that the glue can be cured by adopting a heating mode. And when the material is heated and cured, the temperature is controlled to be between 75 ℃ and 85 ℃, so that the curing requirement is effectively met.

When glue after mixing is poured into the installation cavity 5 from the port mounting port I3 and/or the port mounting port II 4 before solidification, the automobile air conditioner PTC system is continuously shaken while pouring, the flowing of the glue after mixing is improved, and the leveling of the glue after mixing is improved. When the mixed glue is poured into the mounting cavity 5 from the port mounting port I3 and/or the port mounting port II 4 before curing, processing is carried out by adopting processing equipment, the processing equipment comprises a vibration part, and the vibration part can clamp and shake the PTC system of the automobile air conditioner. Above-mentioned structure, when filling, the part that fills that adopts processing equipment fills, and rocks, also adopts processing equipment's vibration part, and the vibration part can conveniently press from both sides tight vehicle air conditioner PTC system and take off vehicle air conditioner PTC system, presss from both sides tight back, can realize the reciprocating motion of vibration part through telescopic cylinder's flexible to can rock tight vehicle air conditioner PTC system, accelerate the flow of glue.

The mixed glue is contacted with an organic compound N, P, S, contains ionic compounds of Sn, Pb, Hg and As elements, and does not solidify when containing alkyne and polyvinyl compounds, and in order to avoid the phenomenon, when the automobile air conditioner PTC system is assembled, rosin and soldering flux remained on each component of the automobile air conditioner PTC system need to be wiped off, and meanwhile, soldering tin with low lead content is used.

Before the mixed glue is poured into the mounting cavity 5 from the port mounting port I3 and/or the port mounting port II 4 before curing, the automobile air conditioner PTC system is kept clean and dry.

According to the automobile air conditioner PTC system and the processing method thereof, the mounting cavity of the PTC system frame forms a cavity which is communicated with the port mounting port I and the port mounting port II of the port mounting part. Like this, through filling liquid glue for glue gets into the installation cavity and the solidification back, forms waterproof gluey piece, and waterproof gluey piece is filled between pencil, components and parts, reaches the parcel isolation effect with this, and the contact of isolated each components and parts simultaneously realizes waterproof and insulating effect. And through forming waterproof glue piece, realize the embedment to components and parts, not only realize waterproofly, can completely cut off components and parts and external contact moreover, play dampproofing, antifouling, anticorrosion, shockproof, waterproof, insulating and sealed effect simultaneously. The key point is that the waterproof performance of the PTC element is greatly improved, and the waterproof performance can reach the waterproof standard of IP 67. When the PTC system of the automobile air conditioner is processed, firstly A, B components are respectively stirred in a manual mode or a mechanical mode, and then are mixed and stirred to form mixed glue; putting the mixed glue into an environment with the vacuum degree of 0.08-0.1MPa for vacuum pumping treatment to complete defoaming treatment, wherein the vacuum pumping treatment lasts for 2-3 minutes; pouring the mixed glue into the mounting cavity from the port mounting port I and/or the port mounting port II before curing; the mixed glue is filled into the installation cavity and then fills the gap part between each electrical element in the installation cavity, and the mixed glue wraps and isolates each electrical element; and (3) carrying out room-temperature placing curing or heating curing on the automobile air conditioner PTC system filled with the mixed glue, and coating and isolating each electrical appliance element after the mixed glue is cured to form a waterproof glue block. According to the structure, the poured glue is double-component high-temperature vulcanized silicone rubber, has the characteristics of fast flowing and fast curing, can quickly and reliably form a waterproof glue block in the mounting cavity, is good in waterproof performance, excellent in insulating performance, good in weather resistance and aging resistance, can work at the working temperature of minus 40-200 ℃ for a long time, and prolongs the service life. According to the automobile air conditioner PTC system and the processing method thereof, the structural and processing method of the automobile air conditioner PTC system are improved, the components and the wiring harness of the system are comprehensively protected, the waterproof performance of the automobile air conditioner PTC can effectively meet the requirement of a waterproof index IP67, the potential safety hazards of rapid heating combustion and the like caused by wiring harness short circuit due to water inflow of the components of the system are effectively eliminated, and the overall safety performance of an automobile is improved.

The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the invention, and its application to other applications without departing from the spirit and scope of the invention.