Dual-temperature zone evaporator and automotive air conditioner

Abstract

The utility model relates to the technical field of automobile air conditioner, more particularly to a kind of double-temperature zone evaporator and automobile air conditioner.Double-temperature zone evaporator includes evaporator core and two expansion valves;Evaporator core includes two independent partitions;Two partitions are communicated with two expansion valves by two connecting pipe groups respectively;Wherein, each expansion valve is used to adjust the outlet pressure of corresponding partition.The double-temperature zone evaporator is applied to automobile air conditioner, and it does not need to be adjusted by warm air core body work and separate temperature air door, and such setting mode can simplify the structure of air conditioner box, realize air conditioner miniaturization and light weight, and reduce manufacturing cost and reduce vehicle energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of automotive air conditioning technology, specifically to a dual-temperature zone evaporator and an automotive air conditioner. Background Technology

[0002] Currently, the evaporator core of existing automotive air conditioning units is a single-piece structure with only one temperature zone. In contrast, the temperature of dual-zone systems is adjusted by rotating a temperature damper to mix different proportions of hot air. This structural design means that when the left and right temperature zones need to be different during cooling, the air conditioning actuator needs to control the rotation of the temperature damper to mix the warm air, resulting in a more complex air conditioning structure, higher component costs, and the need for the heating core to operate, which in turn increases the overall energy consumption of the vehicle. Utility Model Content

[0003] The purpose of this utility model is to provide a dual-temperature zone evaporator and an automotive air conditioner, which adopts a dual-temperature zone structural design and achieves dual-temperature zone temperature regulation function by adjusting the outlet pressure of two expansion valves. This eliminates the need for the heater core to work and a separate temperature damper for adjustment. This configuration simplifies the structure of the air conditioning unit, enables the air conditioner to be miniaturized and lightweight, and reduces manufacturing costs and overall vehicle energy consumption.

[0004] The embodiments of this utility model can be implemented as follows: In the first aspect, this utility model provides a dual-temperature zone evaporator, which includes an evaporator core and two expansion valves; The evaporator core consists of two independent sections; each section is connected to two expansion valves via two connecting pipe assemblies. Each expansion valve is used to adjust the outlet pressure of the corresponding zone.

[0005] In an optional implementation, each partition includes a first flow channel and a second flow channel, which are side-by-side and connected. The entry and exit points of the zones are located in the first flow channel and the second flow channel, respectively.

[0006] In an optional embodiment, the first flow channel includes a first manifold, a heat exchange tube assembly, and a second manifold; and both ends of the heat exchange tube assembly are connected to the first manifold and the second manifold. The second flow channel includes a third manifold, a heat exchange tube assembly, and a fourth manifold; both ends of the heat exchange tube assembly are connected to the third manifold and the fourth manifold. The first and fourth manifolds are arranged side by side, the second and third manifolds are arranged side by side, and the second and third manifolds are connected. The inlet and outlet of the zone are respectively located in the first and fourth manifolds.

[0007] In an optional embodiment, the evaporator core includes a first manifold, a second manifold, a third manifold, and a fourth manifold; the first manifold and the fourth manifold are side by side and connected, and the second manifold and the third manifold are side by side and connected; the first manifold and the second manifold are arranged in parallel and at intervals. The first, second, third, and fourth busbars are each equipped with a partition plate to divide the first busbar into two first busbars, the second busbar into two second busbars, the third busbar into two third busbars, and the fourth busbar into two fourth busbars.

[0008] In an optional implementation, each partition includes a first manifold, a heat exchanger tube group, and a second manifold; both ends of the heat exchanger tube group are connected to the first manifold and the second manifold. The inlet and outlet of the partition are respectively located in the first manifold and the second manifold.

[0009] In an optional embodiment, the evaporator core includes a first manifold and a second manifold; the first manifold and the second manifold are arranged parallel to each other and spaced apart. Both the first and second busbars have built-in partitions to divide the first busbar into two first busbars and the second busbar into two second busbars.

[0010] In an optional implementation, the heat exchange tube assembly includes multiple heat exchange tubes arranged side by side.

[0011] In an optional implementation, each connecting pipe group includes a first connecting pipe and a second connecting pipe; the first connecting pipe connects the inlet of the corresponding partition to the outlet of the expansion valve, and the second connecting pipe connects the outlet of the corresponding partition to the inlet of the corresponding expansion valve.

[0012] In an optional embodiment, protective plates are provided on both sides of the evaporator core.

[0013] Secondly, this utility model provides an automotive air conditioner, which includes the aforementioned dual-zone evaporator.

[0014] The beneficial effects of the dual-temperature zone evaporator and automotive air conditioner provided in this embodiment of the invention include: This dual-zone evaporator is used in automotive air conditioning. It adopts a dual-zone structural design and can achieve dual-zone temperature regulation by adjusting the outlet pressure of two expansion valves. This eliminates the need for a heater core and a separate temperature damper for adjustment. This design simplifies the structure of the air conditioning unit, enables the air conditioning system to be miniaturized and lightweight, and reduces manufacturing costs and overall vehicle energy consumption. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the dual-temperature zone evaporator from a first-view perspective, as provided in this embodiment. Figure 2 This is a schematic diagram of the dual-temperature zone evaporator provided in this embodiment from a second perspective. Figure 3 This is a schematic diagram of the evaporator core provided in this embodiment; Figure 4 This is a schematic diagram of the structure of one section of the evaporator core provided in this embodiment; Figure 5 This is a schematic diagram showing the arrangement of the partitions in the first and fourth busbars provided in this embodiment; Figure 6 This is a schematic diagram showing the arrangement of the partitions in the second and third busbars provided in this embodiment; Figure 7 A schematic diagram showing the arrangement of the partition in the first busbar of this utility model for other embodiments; Figure 8 A schematic diagram showing the arrangement of the partition in the second busbar of this utility model, provided for other embodiments of the present utility model.

[0017] Icons: 100-Dual-zone evaporator; 200-Evaporator core; 300-Expansion valve; 201-Zoning; 210-Connecting pipe assembly; 220-First main manifold; 230-Second main manifold; 240-Third main manifold; 250-Fourth main manifold; 260-Heat exchanger tube assembly; 202-First flow channel; 203-Second flow channel; 221-First manifold; 231-Second manifold; 241-Third manifold; 251-Fourth manifold; 270-Blocking plate; 261-Heat exchanger tube; 211-First connecting pipe; 212-Second connecting pipe; 280-Protective plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0023] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0024] Please refer to Figures 1-4 This embodiment provides a dual-temperature zone evaporator 100, which includes an evaporator core 200 and two expansion valves 300. The evaporator core 200 includes two independent sections 201; the two sections 201 are respectively connected to two expansion valves 300 through two connecting pipe groups 210. Each expansion valve 300 is used to adjust the outlet pressure of the corresponding partition 201.

[0025] Please refer to Figures 1-4 The working principle of this dual-temperature zone evaporator 100 is as follows: The dual-zone evaporator 100 is used in automotive air conditioning. The dual-zone evaporator 100 adopts a dual-zone structural design and can achieve dual-zone temperature regulation function by adjusting the outlet pressure of the two expansion valves 300. This eliminates the need for the heater core to work and a separate temperature damper for adjustment. This configuration simplifies the structure of the air conditioning unit, enables the air conditioning to be miniaturized and lightweight, and reduces manufacturing costs and overall vehicle energy consumption.

[0026] Further, please refer to Figures 1-6 In this embodiment, the two zones 201 of the dual-temperature zone evaporator 100 each correspond to one temperature zone. When forming the zones 201, each zone 201 includes a first flow channel 202 and a second flow channel 203, which are parallel and connected. The inlet and outlet of the zone 201 are respectively located in the first flow channel 202 and the second flow channel 203. This arrangement simplifies the structural dimensions of the dual-temperature zone evaporator 100 by using two parallel and connected flow channels, while ensuring its heat exchange efficiency.

[0027] Based on the structure with dual flow channels, when configuring the two flow channels, the first flow channel 202 includes a first manifold 221, a heat exchange tube group 260 and a second manifold 231; and the two ends of the heat exchange tube group 260 are connected to the first manifold 221 and the second manifold 231. The second flow channel 203 includes a third manifold 241, a heat exchange tube group 260, and a fourth manifold 251; both ends of the heat exchange tube group 260 are connected to the third manifold 241 and the fourth manifold 251. The first manifold 221 and the fourth manifold 251 are arranged side by side, the second manifold 231 and the third manifold 241 are arranged side by side, and the second manifold 231 and the third manifold 241 are connected. The inlet and outlet of the partition 201 are respectively located in the first manifold 221 and the fourth manifold 251.

[0028] That is, through the above structural arrangement, a first flow channel 202 can be formed by arranging the first manifold 221 and the second manifold 231 at intervals and arranging the heat exchange tube group 260 between the first manifold 221 and the second manifold 231; similarly, a second flow channel 203 can be formed by arranging the third manifold 241 and the fourth manifold 251 at intervals and arranging the heat exchange tube group 260 between the third manifold 241 and the fourth manifold 251; and when configuring the first manifold 221, the second manifold 231, and the first manifold 221 and the second manifold 231, the first manifold is used. The arrangement of the second manifold 231 and the third manifold 241 side by side allows the formed first flow channel 202 and the second flow channel 203 to be arranged side by side, thereby reducing the structural size of the dual-temperature zone evaporator 100. By connecting the second manifold 231 and the third manifold 241, the first flow channel 202 and the second flow channel 203 can be connected to form an independent partition 201, that is, forming a temperature zone. The other partition 201 can adopt the same structural arrangement as the aforementioned partition 201, so it will not be described in detail here.

[0029] Furthermore, as can be seen from the above, in order to configure two sections 201 in the same evaporator core 200 according to the first flow channel 202 and the second flow channel 203 as described above, the evaporator core 200 can include a first main flow channel 220, a second main flow channel 230, a third main flow channel 240, and a fourth main flow channel 250; the first main flow channel 220 and the fourth main flow channel 250 are side by side and connected, and the second main flow channel 230 and the third main flow channel 240 are side by side and connected; the first main flow channel 220 and the second main flow channel 230 are arranged in parallel and at intervals. The first busbar 220, the second busbar 230, the third busbar 240, and the fourth busbar 250 are all equipped with partition plates 270 to divide the first busbar 220 into two first busbars 221, the second busbar 230 into two second busbars 231, the third busbar 240 into two third busbars 241, and the fourth busbar 250 into two fourth busbars 251.

[0030] That is, by using the above-described structural arrangement, partition plates 270 can be configured in the four main manifolds to divide the four main manifolds into two parts, which are mutually blocked and independent, and are used to form two partitions 201 respectively. In this way, two partitions 201 can be formed side by side, and the heat exchange tube group 260 between the two partitions 201 is blocked. The manifold parts belonging to the two partitions 201 are separated and blocked by the partition plates 270 built into the four main manifolds. Specifically, the evaporator core 200 includes four main manifolds, namely a first main manifold 220, a second main manifold 230, a third main manifold 240, and a fourth main manifold 250. Each of the four main manifolds is equipped with a partition plate 270, and the partition plates 270 in the first main manifold 220, second main manifold 230, third main manifold 240, and fourth main manifold 250 are parallel to each other and can be located in the same plane. Under the separation effect of the partition plates 270, the four main manifolds can be divided into two sections, and the two sections are mutually blocked and independent, thereby forming two first manifolds 221, two second manifolds 231, two third manifolds 241, and two fourth manifolds 251. Combining the structures of the first flow channel 202 and the second flow channel 203 in each of the above-mentioned partitions 201, it can be seen that the first manifold 221, the second manifold 231, the third manifold 241 and the fourth manifold 251 of the above two partitions 201 can be formed. Based on the fact that the first manifold 220 and the fourth manifold 250 are arranged side by side and connected, the second manifold 230 and the third manifold 240 are arranged side by side and connected, and the first manifold 220 and the second manifold 230 are arranged in parallel and spaced apart, the formed first manifold 221, the second manifold 231, the third manifold 241 and the fourth manifold 251 can be arranged as follows: the first manifold 221 and the fourth manifold 251 are arranged side by side, the second manifold 231 and the third manifold 241 are arranged side by side, and the first manifold 221 and the second manifold 231 are arranged spaced apart, and the third manifold 241 and the fourth manifold 251 are arranged spaced apart. That is, through the above-described structural configuration, the four main manifolds can be connected to the four heat exchanger tube groups 260 to form two zones 201. Taking one zone 201 as an example, the first manifold 221 and the second manifold 231 are arranged at intervals, and the heat exchanger tube group 260 is arranged between the first manifold 221 and the second manifold 231 to form the first flow channel 202. Similarly, the third manifold 241 and the fourth manifold 251 are arranged at intervals, and the heat exchanger tube group 260 is arranged between the third manifold 241 and the fourth manifold 251 to form the second flow channel 203. Then, the second manifold 231 and the third manifold 241 are connected to form a zone 201. Then, the expansion valve 300 is connected, and the other zone 201 is formed in the same manner as described above and the corresponding expansion valve 300 is installed.

[0031] Based on the above structural setup, please refer to... Figures 1-6The dual-temperature zone evaporator 100 provided in this embodiment adopts a partition plate 270 configured in the manifold main pipe, which can serve to divide the evaporator core 200 into two zones 201. That is, the evaporator core 200 is divided into two zones 201, and two expansion valves 300 are configured on this basis. The two expansion valves 300 correspond to the two zones 201 respectively. When connecting the expansion valves 300 to the corresponding zones 201, each connecting pipe group 210 includes a first connecting pipe 211 and a second connecting pipe 212. The first connecting pipe 211 connects the inlet of the corresponding zone 201 to the outlet of the expansion valve 300, and the second connecting pipe 212 connects the outlet of the corresponding zone 201 to the inlet of the corresponding expansion valve 300. In this way, the expansion valves 300 can control the outlet pressure of the corresponding zone 201, thereby achieving the purpose of temperature regulation function of dual temperature zones by adjusting the outlet pressure of the two expansion valves 300.

[0032] Unlike the setup method described above, please refer to... Figure 7 and Figure 8 and combined Figures 1-6 In other embodiments of this utility model, each partition 201 includes a first manifold 221, a heat exchange tube group 260, and a second manifold 231; both ends of the heat exchange tube group 260 are connected to the first manifold 221 and the second manifold 231; wherein the inlet and outlet of the partition 201 are respectively located in the first manifold 221 and the second manifold 231.

[0033] Specifically, the evaporator core 200 includes a first manifold 220 and a second manifold 230; the first manifold 220 and the second manifold 230 are arranged in parallel and spaced apart; wherein, both the first manifold 220 and the second manifold 230 have a built-in partition plate 270 to divide the first manifold 220 into two first manifolds 221 and the second manifold 230 into two second manifolds 231.

[0034] That is, through the above-described structural arrangement, by setting a partition plate 270 on the first manifold 220 and the second manifold 230, the first manifold 220 and the second manifold 230 can be divided into two segments. These two segments are respectively used to connect with the heat exchange tube assembly 260 to form corresponding partitions 201. The difference between this arrangement and the previous arrangement where partition 201 included a first flow channel 202 and a second flow channel 203 is that the flow channel is only one. Furthermore, with this arrangement, the two partitions 201 are respectively connected to two expansion valves 300, and the temperature regulation function of the dual-temperature zone can be achieved by adjusting the outlet pressure of the two expansion valves 300.

[0035] Further, please refer to Figures 1-6 In this embodiment, the heat exchange tube assembly 260 includes a plurality of heat exchange tubes 261 arranged side by side. Furthermore, in order to protect the evaporator core 200, protective plates 280 are provided on both sides of the evaporator core 200.

[0036] Based on the above, please refer to Figures 1-8 This embodiment also provides an automotive air conditioner, which includes the aforementioned dual-zone evaporator 100. By employing the dual-zone evaporator 100, this automotive air conditioner can achieve dual-zone temperature regulation by adjusting the outlet pressure of the two expansion valves 300. This eliminates the need for a separate heater core and temperature damper for adjustment. This design simplifies the structure of the air conditioning unit, enabling miniaturization and weight reduction, while also lowering manufacturing costs and overall vehicle energy consumption.

[0037] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A dual-temperature zone evaporator, characterized in that: The dual-temperature zone evaporator includes an evaporator core and two expansion valves; The evaporator core comprises two independent sections; the two sections are respectively connected to the two expansion valves via two connecting pipe groups. Each of the expansion valves is used to adjust the outlet pressure of the corresponding zone.

2. The dual-temperature zone evaporator according to claim 1, characterized in that: Each of the partitions includes a first flow channel and a second flow channel, which are side by side and connected. The inlet and outlet of the partition are respectively located in the first flow channel and the second flow channel.

3. The dual-temperature zone evaporator according to claim 2, characterized in that: The first flow channel includes a first manifold, a heat exchange tube assembly, and a second manifold; and both ends of the heat exchange tube assembly are connected to the first manifold and the second manifold. The second flow channel includes a third manifold, a heat exchange tube assembly, and a fourth manifold; both ends of the heat exchange tube assembly are connected to the third manifold and the fourth manifold. The first manifold and the fourth manifold are arranged side by side, the second manifold and the third manifold are arranged side by side, and the second manifold and the third manifold are connected. The inlet and outlet of the partition are respectively located in the first manifold and the fourth manifold.

4. The dual-temperature zone evaporator according to claim 3, characterized in that: The evaporator core includes a first main manifold, a second main manifold, a third main manifold, and a fourth main manifold; the first main manifold and the fourth main manifold are side by side and connected, and the second main manifold and the third main manifold are side by side and connected; the first main manifold and the second main manifold are arranged parallel to each other and spaced apart. The first, second, third, and fourth busbars are each equipped with a partition plate to divide the first busbar into two first busbars, the second busbar into two second busbars, the third busbar into two third busbars, and the fourth busbar into two fourth busbars.

5. The dual-temperature zone evaporator according to claim 1, characterized in that: Each of the partitions includes a first manifold, a heat exchanger tube group, and a second manifold; both ends of the heat exchanger tube group are connected to the first manifold and the second manifold; The inlet and outlet of the partition are respectively located in the first manifold and the second manifold.

6. The dual-temperature zone evaporator according to claim 5, characterized in that: The evaporator core includes a first manifold and a second manifold; the first manifold and the second manifold are arranged parallel to each other and spaced apart. Both the first and second busbars have built-in partitions to divide the first busbar into two first busbars and the second busbar into two second busbars.

7. The dual-temperature zone evaporator according to any one of claims 3-6, characterized in that: The heat exchange tube assembly includes multiple heat exchange tubes arranged side by side.

8. The dual-temperature zone evaporator according to claim 1, characterized in that: Each of the connecting pipe groups includes a first connecting pipe and a second connecting pipe; the first connecting pipe connects the inlet of the corresponding partition to the outlet of the expansion valve, and the second connecting pipe connects the outlet of the corresponding partition to the inlet of the corresponding expansion valve.

9. The dual-temperature zone evaporator according to claim 1, characterized in that: Protective plates are provided on both sides of the evaporator core.

10. An automotive air conditioner, characterized in that: The automotive air conditioning system includes a dual-zone evaporator as described in any one of claims 1-9.

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