Automobile air conditioning system with independently arranged high-voltage and low-voltage electrical elements

Abstract

The utility model discloses an automobile air conditioning system with independently arranged high and low voltage electrical elements, which comprises a shell, a condensation cavity, a pipeline cavity and an evaporation cavity are arranged in the shell, a condenser is arranged in the condensation cavity, a compressor and a pipeline assembly are arranged in the pipeline cavity, and an evaporator is further arranged in the evaporation cavity. The compressor, the condenser and the evaporator are sequentially and circularly connected through the pipeline assembly. The condenser comprises a condenser core body and a cooling fan, and the cooling fan is arranged at the top of the condenser core body; the evaporator comprises an evaporator core body, and the condenser core body and the evaporator core body are both of a parallel flow type structure; a high-voltage electric appliance assembly is arranged in the pipeline cavity, a low-voltage electric appliance assembly is arranged in the evaporation cavity, and a distance is reserved between the high-voltage electric appliance assembly and the low-voltage electric appliance assembly. The high-voltage electrical element is arranged outside the evaporation cavity, and the low-voltage electrical element is arranged in the evaporation cavity, so that the high-voltage electrical element and the low-voltage electrical element are independently arranged and do not interfere with each other, and the fault risk of the electrical elements is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of automotive air conditioning, specifically relating to an automotive air conditioning system with independently set high and low voltage electrical components. Background Technology

[0002] Existing automotive air conditioning systems typically include a housing, compressor, condenser, evaporator, and electronic control components. The electronic control components include a variety of electrical components that are centrally located. This centralized approach saves installation space for the electrical components, making the automotive air conditioning system more compact.

[0003] In existing technologies, such as patent document CN217088320U, a multi-functional integrated vehicle air conditioning control box is disclosed. This box seals various electrical components within a housing and cover, making the vehicle air conditioning structure more compact. However, electrical components typically include high-voltage components (those with a rated voltage higher than or equal to 60V) and low-voltage components (those with a rated voltage lower than 60V). When high-voltage and low-voltage components are integrated, there is a risk that the shielding layer of the high-voltage components may fail, interfering with the low-voltage components and causing them to malfunction. Summary of the Invention

[0004] To address the problems in the existing technology, this utility model proposes an automotive air conditioning system with independently set high and low voltage electrical components. By placing the high-voltage electrical components outside the evaporator cavity and the low-voltage electrical components inside the evaporator cavity, the high-voltage and low-voltage electrical components are set independently, so that they do not interfere with each other and reduce the risk of electrical component failure.

[0005] This utility model is implemented as follows: A car air conditioning system with independently set high and low voltage electrical components is installed on the top of the car and includes a housing. The housing has a condensing chamber, a pipe chamber and an evaporating chamber arranged in sequence. The condensing chamber is equipped with a condenser. The pipe chamber is equipped with a compressor and a pipe assembly. The evaporating chamber is also equipped with an evaporator. The pipe assembly connects the compressor, condenser and evaporator in sequence in a loop.

[0006] The condenser includes a condenser core and a cooling fan. The cooling fan is located at the top of the condenser core and drives the air in the condensation chamber to flow to the outside. The evaporator includes an evaporator core, and both the condenser core and evaporator core are parallel flow structures. Compared with the ordinary copper tube-fin structure, the parallel flow structure has the advantages of high heat exchange efficiency, large effective heat exchange area, and compact structure, which improves the heat exchange efficiency of the condenser core and evaporator core, while reducing the volume of the condenser and evaporator, thereby reducing the overall volume of the automotive air conditioning system and expanding the applicability of the automotive air conditioning system.

[0007] A high-voltage electrical assembly is installed inside the pipe cavity, and a low-voltage electrical assembly is installed inside the evaporator cavity. The high-voltage electrical assembly includes a first bracket and a high-voltage electrical component mounted on the first bracket. The high-voltage electrical component is covered by a protective cover made of metal. The low-voltage electrical assembly includes a second bracket mounted on the inner wall of the evaporator cavity and a low-voltage electrical component mounted on the second bracket. An isolation space is provided between the high-voltage electrical assembly and the low-voltage electrical assembly. On the one hand, by placing the high-voltage and low-voltage electrical assemblies separately in the pipe cavity and the evaporator cavity, the high-voltage and low-voltage electrical components are made independent of each other. When the shielding layer of the high-voltage electrical component fails, the isolation space between the low-voltage and high-voltage electrical components greatly reduces the risk of the low-voltage electrical component malfunctioning due to interference from the high-voltage electrical component, thus improving the reliability of the automotive air conditioning system. On the other hand, the metal protective cover not only protects the high-voltage electrical component but also provides shielding. When the shielding layer of the high-voltage electrical component fails, it further prevents the low-voltage electrical component from being interfered with, further reducing the risk of malfunction due to interference.

[0008] Preferably, the first bracket further includes an overhead section and a mounting plate mounted on the overhead section, with the protective cover and high-voltage electrical components mounted on the mounting plate. The protective cover has mounting holes or a U-shaped groove, and is threadedly connected to the mounting plate through the mounting holes or the U-shaped groove. The overhead section makes the structure inside the pipe cavity more compact, improving the space utilization of the pipe cavity. When the protective cover is installed through the mounting holes, the mounting holes can restrict the position of the protective cover to ensure that the protective cover completely covers the high-voltage electrical components. When the protective cover is installed through the U-shaped groove, the protective cover can be removed or installed by simply loosening or tightening the fastening screws through the U-shaped groove, improving the installation convenience of the protective cover.

[0009] Specifically, the piping assembly also includes a desiccant bottle and a sight glass, which are connected sequentially, with the desiccant bottle positioned between the overhead sections. Since refrigerant may contain dissolved moisture, the desiccant bottle removes this dissolved moisture, preventing it from freezing and clogging the pipes, thus improving the reliability and stability of the automotive air conditioning system. When the desiccant bottle is positioned between the overhead sections, it utilizes the space between them, making the piping assembly more compact and further improving the space utilization of the piping cavity. The sight glass is used to observe the refrigerant content within the piping assembly, allowing vehicle owners to add refrigerant promptly.

[0010] Preferably, the distance between the high-voltage electrical component and the inner wall of the protective cover is l, where l ≥ 5 mm.

[0011] Preferably, the bottom of the evaporation chamber is provided with a first air inlet, and two evaporators are provided, symmetrically arranged on both sides of the first air inlet; the bottom of the evaporation chamber is also provided with a first air outlet corresponding to the evaporator, and the first air outlet is symmetrically arranged on the outside of the evaporator. The evaporators symmetrically arranged on both sides of the first air inlet form two heat exchange channels in the evaporation chamber, which accelerates the heat exchange efficiency of the air in the vehicle, thereby enabling the air in the vehicle to cool down quickly and improving the consumer's experience.

[0012] Specifically, the evaporation chamber is also equipped with an evaporation fan corresponding to the first air outlet, and the air outlet of the evaporation fan is connected to the first air outlet. The evaporation fan increases the airflow rate after heat exchange, allowing the cooled air to diffuse into the vehicle interior more quickly, thereby increasing the cooling rate of the vehicle interior and further enhancing the consumer experience.

[0013] Preferably, the piping assembly further includes an expansion valve corresponding to the evaporator, the expansion valve being located between the condenser and the evaporator. The expansion valve is used to reduce refrigerant pressure and regulate refrigerant flow, allowing the evaporator to control the cooling temperature according to the refrigerant flow, thereby enabling the automotive air conditioning system to adapt to different cooling needs and improving the applicability of the automotive air conditioning system.

[0014] Preferably, the bottom of the pipe cavity is provided with multiple second air inlets, and the side wall of the pipe cavity corresponding to the condenser cavity is provided with air passage holes, which connect the pipe cavity and the condenser cavity. When the condenser dissipates heat, it needs to draw low-temperature air from the outside for heat dissipation. The second air inlets and air passage holes connect the pipe cavity to both the condenser cavity and the outside, thereby allowing the low-temperature air drawn by the condenser to flow through the high-voltage electrical components, improving the heat dissipation effect of the high-voltage electrical components.

[0015] Preferably, the housing includes a detachable bottom shell and an outer cover. When the bottom shell and the outer cover are connected, they form the condensation chamber, the pipe chamber, and the evaporation chamber. The detachable outer cover makes it easy to install and maintain the components inside the housing, improving the ease of installation and maintenance of the components. The outer cover also has multiple third air inlets, which connect the condensation chamber to the outside. The third air inlets improve the air intake efficiency of the condensation chamber when the condenser dissipates heat, thereby improving the heat dissipation efficiency of the condenser.

[0016] Preferably, the low-voltage electrical component is located in the middle of the side wall of the evaporation chamber, so that the air flows through the low-voltage electrical component before heat exchange, thereby improving the heat dissipation efficiency of the low-voltage electrical component; the high-voltage electrical component is located at the corner of the pipe cavity away from the low-voltage electrical component, thereby increasing the isolation space and further distancing the high-voltage electrical component from the low-voltage electrical component, thereby further reducing the risk of the high-voltage electrical component interfering with the low-voltage electrical component.

[0017] The beneficial effects of this utility model are:

[0018] This invention proposes an automotive air conditioning system with independently configured high- and low-voltage electrical components. On one hand, by placing the high-voltage and low-voltage electrical components separately in the pipe cavity and evaporator cavity, respectively, the high-voltage and low-voltage electrical components are made independent. When the shielding layer of the high-voltage electrical component fails, the isolation space between the low-voltage and high-voltage components greatly reduces the risk of interference to the low-voltage component, thus improving the reliability of the automotive air conditioning system. On the other hand, the metal protective cover not only protects the high-voltage electrical component but also provides shielding. When the shielding layer of the high-voltage electrical component fails, it further prevents interference to the low-voltage electrical component, further reducing the risk of interference to the low-voltage component and causing malfunction. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall automotive air conditioning system of this utility model;

[0020] Figure 2 This is an internal schematic diagram of the automotive air conditioning system of this utility model;

[0021] Figure 3 This is an exploded view of the high-voltage electrical components of the automotive air conditioning system of this utility model;

[0022] Figure 4 for Figure 2 An enlarged schematic diagram of point a;

[0023] Figure 5 This is a schematic diagram of the airflow in the evaporator chamber of the automotive air conditioning system of this utility model;

[0024] Figure 6 This is a schematic diagram of the condenser of the automotive air conditioning system of this utility model.

[0025] Figure label:

[0026] 1. Housing; 2. Condenser; 3. Piping assembly; 4. Compressor; 5. Evaporator; 6. High-voltage electrical assembly; 7. Low-voltage electrical assembly; 11. Condensing chamber; 12. Piping chamber; 13. Evaporating chamber; 14. Third air inlet; 15. Air vent; 21. Condenser core; 22. Cooling fan; 31. Expansion valve; 61. Protective cover; 62. First bracket; 131. First air inlet; 132. Evaporator fan; 621. Overhead section; 622. Mounting plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-6 As shown, an automotive air conditioning system with independently configured high and low voltage electrical components includes a housing 1. The housing 1 has a condensing chamber 11, a pipe chamber 12, and an evaporating chamber 13 arranged sequentially. The condensing chamber 11 contains a condenser 2. The pipe chamber 12 contains a compressor 4 and a pipe assembly 3. The evaporating chamber 13 also contains an evaporator 5. The pipe assembly 3 connects the compressor 4, condenser 2, and evaporator 5 in a sequential loop.

[0029] In this embodiment, the condenser 2 includes a condenser core 21 and a cooling fan 22. The cooling fan 22 is located on top of the condenser core 21 and drives the air in the condensing chamber 11 to flow to the outside. The evaporator 5 includes an evaporator core, and both the condenser core 21 and the evaporator core are parallel flow structures. Compared with the ordinary copper tube-plate structure, the parallel flow structure has the advantages of high heat exchange efficiency, large effective heat exchange area, and compact structure, which improves the heat exchange efficiency of the condenser core 21 and the evaporator core 5, while reducing the volume of the condenser 2 and the evaporator 5, thereby reducing the overall volume of the automotive air conditioning system and improving the applicability of the automotive air conditioning system.

[0030] In this embodiment, the housing 1 includes a detachable bottom shell and an outer cover. When the bottom shell and the outer cover are connected, they form the condensing chamber 11, the pipe chamber 12, and the evaporating chamber 13. The detachable outer cover makes it easy to install and maintain the components inside the housing 1, improving the installation and maintenance convenience of each component inside the housing 1. The outer cover also has multiple third air inlets 14, which connect the condensing chamber 11 to the outside. The third air inlets 14 improve the air intake efficiency of the condensing chamber 11 when the condenser 2 dissipates heat, thereby improving the heat dissipation efficiency of the condenser 2.

[0031] In this embodiment, the evaporation chamber 13 has a first air inlet 131 at its bottom, and two evaporators 5 are symmetrically arranged on both sides of the first air inlet 131. The evaporation chamber 13 also has a first air outlet corresponding to the evaporator 5 at its bottom, and the first air outlet is symmetrically arranged on the outer side of the evaporator 5. The evaporators 5 symmetrically arranged on both sides of the first air inlet 131 form two heat exchange channels within the evaporation chamber 13, which accelerates the heat exchange efficiency of the air inside the vehicle, thereby enabling rapid cooling of the air inside the vehicle and improving the consumer's experience.

[0032] Specifically, the evaporation chamber 13 is further equipped with an evaporation fan 132 corresponding to the first air outlet, and the air outlet of the evaporation fan 132 is connected to the first air outlet. The evaporation fan 132 increases the air flow rate after heat exchange, allowing the cooled air to diffuse into the vehicle interior more quickly, thereby increasing the cooling rate of the vehicle interior and further enhancing the consumer experience.

[0033] In this embodiment, the piping assembly 3 further includes an expansion valve 31 corresponding to the evaporator 5, which is located between the condenser 2 and the evaporator 5. The expansion valve 31 is used to reduce the refrigerant pressure and regulate the refrigerant flow rate, so that the evaporator 5 controls the cooling temperature according to the refrigerant flow rate, thereby enabling the automotive air conditioning system to adapt to different cooling needs and improving the applicability of the automotive air conditioning system.

[0034] In this embodiment, the bottom of the pipe cavity 12 is provided with multiple second air inlets, and the side wall of the pipe cavity 12 corresponding to the condenser cavity 11 is provided with air passage holes 15, which connect the pipe cavity 12 and the condenser cavity 11. When the condenser 2 dissipates heat, it needs to draw low-temperature air from the outside for heat dissipation. The second air inlets and air passage holes 15 connect the pipe cavity 12 to both the condenser cavity 11 and the outside, thereby allowing the low-temperature air drawn by the condenser 2 to flow through the high-voltage electrical component 6, improving the heat dissipation effect of the high-voltage electrical component 6.

[0035] The high-voltage electrical component 6 is installed inside the pipe cavity 12, and the low-voltage electrical component 7 is installed inside the evaporation cavity 13. The high-voltage electrical component 6 includes a first support 62 and a high-voltage electrical component mounted on the first support 62. The high-voltage electrical component is covered by a protective cover 61, which is made of metal. The low-voltage electrical component 7 includes a second support mounted on the inner wall of the evaporation cavity and a low-voltage electrical component mounted on the second support. An isolation space is provided between the high-voltage electrical component 6 and the low-voltage electrical component 7. On the one hand, by placing the high-voltage electrical component 6 and the low-voltage electrical component 7 in the pipe cavity 12 and the evaporator cavity 13 respectively, the high-voltage electrical components and the low-voltage electrical components are made independent of each other. When the shielding layer of the high-voltage electrical component fails, the distance between the low-voltage electrical component and the high-voltage electrical component greatly reduces the risk of the low-voltage electrical component being interfered with by the high-voltage electrical component and thus improves the reliability of the automotive air conditioning system. On the other hand, the metal protective cover 61 not only protects the high-voltage electrical component but also has a shielding function. When the shielding layer of the high-voltage electrical component fails, it can further prevent the low-voltage electrical component from being interfered with and further reduce the risk of the low-voltage electrical component being interfered with and thus malfunctioning.

[0036] In this embodiment, the first bracket 62 further includes an overhead portion 621 and a mounting plate 622 mounted on the overhead portion 621. The protective cover 61 and the high-voltage electrical components are mounted on the mounting plate 622. The protective cover 61 has mounting holes, through which it is threadedly connected to the mounting plate 622. The overhead portion 621 makes the structure inside the pipe cavity more compact, improving the space utilization of the pipe cavity. When the protective cover 61 is installed through the mounting holes, the mounting holes can restrict the position of the protective cover 61 to ensure that the protective cover 61 completely covers the high-voltage electrical components.

[0037] Specifically, the pipe assembly 3 also includes a desiccant bottle and a sight glass, which are connected in sequence, with the desiccant bottle positioned between the overhead sections 621. Since refrigerant may contain dissolved moisture, the desiccant bottle removes this dissolved moisture, preventing it from freezing and clogging the pipes, thus improving the reliability and stability of the automotive air conditioning system. When the desiccant bottle is positioned between the overhead sections 621, it utilizes the space between them, making the pipe assembly 3 more compact and further improving the space utilization of the pipe cavity 12. The sight glass is used to observe the refrigerant content within the pipe assembly 3, allowing the owner to add refrigerant promptly.

[0038] In this embodiment, the distance between the high-voltage electrical component and the inner wall of the protective cover 61 is l, where l = 6 mm.

[0039] In this embodiment, the low-voltage electrical component 7 is located in the middle of the side wall of the evaporation chamber 13, so that the air flows through the low-voltage electrical component 7 before heat exchange, thereby improving the heat dissipation efficiency of the low-voltage electrical component 7; the high-voltage electrical component 6 is located at the corner of the pipe cavity 12 away from the low-voltage electrical component 7, thereby increasing the isolation space and further distancing the high-voltage electrical component 6 from the low-voltage electrical component 7, thereby further reducing the risk of the high-voltage electrical component 6 interfering with the low-voltage electrical component 7.

[0040] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A high-low voltage electrical element independently arranged automobile air conditioning system, installed on the roof of the automobile, comprising a shell, the shell is provided with condensing cavity, pipeline cavity and evaporation cavity arranged in sequence, characterized in that, The condensing cavity is provided with a condenser, the pipeline cavity is provided with a compressor and a pipeline assembly, and the evaporating cavity is further provided with an evaporator, and the pipeline assembly is sequentially and circularly connected with the compressor, the condenser and the evaporator; The condenser comprises a condenser core and a heat dissipation fan, the heat dissipation fan is arranged on the top of the condenser core and drives the air in the condensing cavity to flow to the outside, and the evaporator comprises an evaporator core, and the condenser core and the evaporator core are both parallel flow structures; The pipeline cavity is provided with a high-voltage electrical component, and the evaporating cavity is provided with a low-voltage electrical component, The high-voltage electrical component comprises a first support and a high-voltage electrical element arranged on the first support, the high-voltage electrical element is covered by a protective cover made of metal, the low-voltage electrical component comprises a second support arranged on the inner wall of the evaporating cavity and a low-voltage electrical element arranged on the second support, and an isolation space is arranged between the high-voltage electrical component and the low-voltage electrical component.

2. The automobile air conditioning system with high and low voltage electrical components disposed independently according to claim 1, characterized in that, The first support further comprises an overhead part and a mounting plate mounted on the overhead part, the protective cover and the high-voltage electrical element are mounted on the mounting plate, the protective cover is provided with a mounting hole or a U-shaped groove, and the protective cover is threadedly connected with the mounting plate through the mounting hole or the U-shaped groove.

3. The automobile air conditioning system with high and low voltage electrical components disposed independently according to claim 2, characterized in that, The pipeline assembly further comprises a drying bottle and a sight glass, the drying bottle and the sight glass are sequentially connected, and the drying bottle is arranged between the overhead parts.

4. The automobile air conditioning system with high and low voltage electrical components disposed independently according to claim 1, characterized in that, The distance between the high-voltage electrical element and the inner wall of the protective cover is l, and l is greater than or equal to 5 mm.

5. The automobile air conditioning system with high and low voltage electrical components disposed independently according to claim 1, wherein, The bottom of the evaporating cavity is provided with a first air inlet, the evaporator is provided with two and is symmetrically arranged on the two sides of the first air inlet, the bottom of the evaporating cavity is further provided with a first air outlet corresponding to the evaporator, and the first air outlet is symmetrically arranged on the outer side of the evaporator.

6. The automobile air conditioning system with high and low voltage electrical components disposed independently according to claim 5, wherein, The evaporating cavity is further provided with an evaporating fan corresponding to the first air outlet, and the air outlet of the evaporating fan is in communication with the first air outlet.

7. The automobile air conditioning system with high and low voltage electrical components disposed independently according to claim 1, wherein, The pipeline assembly further comprises an expansion valve corresponding to the evaporator, and the expansion valve is arranged between the condenser and the evaporator.

8. The automobile air conditioning system with high and low voltage electrical components disposed independently according to claim 1, wherein, The bottom of the pipeline cavity is provided with a plurality of second air inlets, the side wall of the pipeline cavity corresponding to the condensing cavity is provided with a wind passing hole, and the wind passing hole is in communication with the pipeline cavity and the condensing cavity.

9. The automobile air conditioning system with high and low voltage electrical components disposed independently according to claim 1, wherein, The shell comprises a detachable bottom shell and an outer cover, when the bottom shell and the outer cover are connected, the condensing cavity, the pipeline cavity and the evaporating cavity are formed, and the outer cover is also provided with a plurality of third air inlets, and the third air inlets are in communication with the condensing cavity and the outside.

10. The automobile air conditioning system with high and low voltage electrical components disposed independently according to claim 1, wherein, The low-voltage electrical component is arranged at the middle part of the side wall of the evaporating cavity, and the high-voltage electrical component is arranged at the corner of the pipeline cavity away from the low-voltage electrical component.

Images