Air conditioning unit

Abstract

The application discloses an air conditioner box, which comprises a box body, a fan and a heat exchanger assembly. The box body has a first direction, the box body has a first space and a second space. The second space and the first space are communicated with each other in the first direction, the fan is located in the first space, and the heat exchanger assembly is located in the second space. The heat exchanger assembly comprises at least one heat exchanger unit, each heat exchanger unit comprises a plurality of heat exchange pieces, and the plurality of heat exchange pieces are arranged at intervals along a direction perpendicular to the first direction. The heat exchanger unit has an air flow channel, the air flow channel is located between two adjacent heat exchange pieces, and the air flow channel penetrates up and down along the first direction. The fan has an air outlet port, and the air outlet port faces the heat exchanger assembly. The application improves the air field uniformity, so that sufficient heat exchange can be achieved.

Description

Technical Field

[0001] This application relates to the field of heat exchange technology, and more particularly to an air conditioning unit. Background Technology

[0002] Air conditioning units are equipped with heat exchangers. However, in related technologies, the airflow direction of the heat exchanger is perpendicular to the airflow direction, and a narrow, elongated channel is reserved inside the air conditioning unit, connected and perpendicular to the airflow channel of the heat exchanger, to supply airflow to the heat exchanger. This design causes most of the air entering the air conditioning unit to preferentially pass through the narrow channel and then through the airflow channel near the air outlet within the heat exchanger, due to the resistance of the heat exchanger, before flowing out towards the air outlet. This results in a portion of the heat exchanger's heat exchange surface not being effectively utilized, and most of the air failing to exchange heat effectively with the heat exchanger, leading to poor airflow uniformity and a loss of heat exchange performance. Summary of the Invention

[0003] In view of the above-mentioned problems in the related technologies, this application provides an air conditioning unit that improves the uniformity of the air field to achieve sufficient heat exchange.

[0004] To achieve the above objectives, this application adopts the following technical solution: an air conditioning unit, comprising a housing, a fan, and a heat exchanger assembly, wherein the housing has a first direction, a first space, and a second space, the second space and the first space being interconnected in the first direction, the fan being located in the first space, the heat exchanger assembly being located in the second space, the heat exchanger assembly comprising at least one heat exchanger unit, each heat exchanger unit comprising multiple heat exchange elements, the multiple heat exchange elements being arranged at intervals along a direction perpendicular to the first direction, each heat exchanger unit having an airflow channel located between two adjacent heat exchange elements, the airflow channel being vertically continuous along the first direction; the fan having an air outlet port facing the heat exchanger assembly.

[0005] In this application, the air conditioning unit has its fan and heat exchanger assembly arranged in the same direction as the airflow channel of the heat exchanger assembly, which reduces the resistance of the heat exchanger to the wind. Furthermore, the air outlet of the fan faces the heat exchanger assembly, allowing the air entering the unit to naturally enter the airflow channel of the heat exchanger assembly and exchange heat with it. The air in the first space can pass through the heat exchanger assembly relatively evenly for heat exchange, thus resulting in high heat exchange efficiency. Attached Figure Description

[0006] Figure 1 This is a perspective view of the air conditioning unit in this application;

[0007] Figure 2 It was removed Figure 1 Diagram showing the relative positions of other components outside the middle housing;

[0008] Figure 3 This is a cross-sectional view along the axial direction of the fan in the air conditioning unit of this application;

[0009] Figure 4 This is a perspective view of the heat exchanger assembly in the air conditioning unit of this application connected by a fixing plate;

[0010] Figure 5 It is a three-dimensional exploded view of the heat exchanger units of the heat exchanger assembly in the air conditioning unit, arranged vertically.

[0011] Figure 6 yes Figure 5 The left-side view has been enlarged by a certain proportion;

[0012] Figure 7 Is with Figure 6 In a similar modified embodiment of the air conditioning unit of this application, a combined state diagram is shown where the first manifolds on the left side of multiple heat exchanger units are connected as one unit through a first bend.

[0013] Figure 8 yes Figure 5 The right-side view has been enlarged by a certain proportion;

[0014] Figure 9 Is with Figure 8 In a similar modified embodiment of the air conditioning unit of this application, a combined state diagram is shown where the second manifolds on the right side of multiple heat exchanger units are connected as one unit by a second bend.

[0015] Figure 10 This is an exploded perspective view of the fan and fan mounting plate of the air conditioning unit in this application;

[0016] Figure 11 This is a perspective view of the air conditioning unit in this application without the rear cover.

[0017] Figure 12 yes Figure 11 A magnified view of a portion of the image. Detailed Implementation

[0018] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0019] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0020] It should be understood that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one; "multiple" indicates two or more. Unless otherwise stated, terms such as "front," "rear," "lower," and / or "upper" are for illustrative purposes only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects.

[0021] The air conditioning unit of the present application, with reference to the accompanying drawings, will now be described in detail. Unless otherwise specified, the features of the following embodiments and implementations can complement or combine with each other.

[0022] like Figures 1 to 12 As shown, the air conditioning unit of this application includes a housing 1, a compressor 2, a fan 3, a fan mounting plate 4, a heat exchanger assembly 5, and a fixing plate 6.

[0023] Please refer to Figures 1 to 3 as well as Figure 11 and Figure 12 The housing 1 is formed in a first direction (i.e. Figure 1 (the vertical direction) and the second direction (i.e.) Figure 1 (in the forward and backward directions) and third direction (i.e.) Figure 1in the left - right direction), the first direction, the second direction, and the third direction are perpendicular to each other pairwise. The housing 1 has a first space 11 and a second space 12, and the second space 12 and the first space 11 are interconnected in the first direction. The dimension L2 of the second space 12 in the second direction is smaller than the dimension L1 of the first space 11 in the second direction, that is, L2 < L1; the dimension L3 of the second space 12 in the third direction is larger than the dimension L2 of the second space 12 in the second direction, that is, L3 > L2. In the specific implementation, L3 > L1; however, this application does not limit the size relationship between L1 and L3. The compressor 2 and the blower 3 are located in the first space 11, and the heat exchanger assembly 5 is located in the second space 12. The heat exchanger assembly 5 includes at least one heat exchanger unit 50, and each heat exchanger unit 50 includes at least one heat exchange element 51. An air flow channel 500 is formed between two adjacent heat exchange elements 51, and the air flow channel 500 penetrates in the first direction, that is, the up - down direction.

[0024] In a specific embodiment of the present application, the heat exchange element 51 is a plurality of flat tubes arranged at intervals in the second direction, that is, the front - back direction, and the flat tubes extend in the third direction. Therefore, the air flow channel 500 is formed between two adjacent flat tubes in the front - back direction; of course, the air flow channel 500 is also formed between the front - most flat tube and the front baffle of the housing 1 and between the rearmost flat tube and the rear baffle of the housing 1. In other embodiments of the present application, the heat exchanger unit 50 of the heat exchanger assembly 5 can also be rotated 90 degrees as a whole, that is, the heat exchange element 51 is a plurality of flat tubes arranged at intervals in the third direction, that is, the left - right direction, and the flat tubes extend in the second direction. Therefore, the air flow channel 500 can also be formed between the left - most flat tube and the left baffle of the housing 1 and between the right - most flat tube and the right baffle of the housing 1. In short, whether the flat tubes extend in the second direction or in the third direction, in both of the two embodiments, the air flow channel 500 penetrating in the first direction, that is, the up - down direction, is formed, ensuring that the air blowing from the first space 11 towards the second space 12 can directly enter the air flow channel 500, and can directly exchange heat with the refrigerant flowing in the heat exchange element 51 without turning, improving the uniformity and efficiency of heat exchange.

[0025] Each heat exchanger unit 50 includes at least one manifold 52, and at least one end of the heat exchange element 51 is inserted into the manifold 52. In a specific embodiment of this application, a manifold 52 is provided at each end of the heat exchange element 51, that is, each heat exchanger unit 50 includes two manifolds 52 located at both ends of the heat exchange element 51 and arranged in parallel, for distribution and return respectively; optionally, in other embodiments, both ends of the heat exchange element 51 are inserted into the same manifold 52, except that a partition can be provided in the same manifold 52 to divide the inner cavity of the same manifold 52 into two parallel independent chambers, one chamber for distribution and the other chamber for return. Correspondingly, in other embodiments, the same heat exchange element 51 needs to be curved 360 degrees relative to the distal end of the same manifold 52 to form a parallel arrangement.

[0026] In a specific embodiment of this application, for the same heat exchanger unit 50, the manifold 52 includes a first manifold 521 and a second manifold 522, located at opposite ends of the heat exchange element 51. When multiple heat exchange elements 51 are spaced apart in the second direction, i.e., when each heat exchange element 51 extends along the third direction, the first manifold 521 and the second manifold 522 extend in the second direction; when multiple heat exchange elements 51 are spaced apart in the third direction, i.e., when each heat exchange element 51 extends along the second direction, the first manifold 521 and the second manifold 522 extend upward in the third direction. The arrangement of the manifold 52 perpendicularly to both sides of the heat exchange element 51 is a skill known to those skilled in the art and will not be described further in this application.

[0027] In this application, for the entire heat exchanger assembly 5, the heat exchanger unit 50 includes at least a first heat exchanger unit 501 and a second heat exchanger unit 502 spaced apart in the first direction; in optional embodiments, the heat exchanger unit 50 may further include a third heat exchanger unit 503, a fourth heat exchanger unit 504, a fifth heat exchanger unit 505, a sixth heat exchanger unit 506, and so on, which are further spaced apart in the first direction. Furthermore, for the entire heat exchanger assembly 5, the heat exchange element 51 may extend in both the second direction and the third direction. For example, in two adjacent layers, the heat exchange element 51 of the upper layer, such as the heat exchange element 51 of the first heat exchanger unit 501, extends in the second direction, while the heat exchange element 51 of the lower layer, such as the heat exchange element 51 of the second heat exchanger unit 502, extends in the third direction. Because the upper and lower adjacent layers are different layers and not connected, the vertical flow channel 500 can still be made continuously. The first heat exchanger unit 501 and the second heat exchanger unit 502 are connected to the inner wall of the housing 1 by a fixing plate 6. Optionally, multiple heat exchanger units 50 are spaced apart in the first direction, i.e., the first heat exchanger unit 501, the second heat exchanger unit 502, the third heat exchanger unit 503, the fourth heat exchanger unit 504, the fifth heat exchanger unit 505, the sixth heat exchanger unit 506, etc., are all horizontally arranged in each height plane. Therefore, after the heat exchanger assembly 5 is arranged horizontally, it can include multiple heat exchanger units 50 as needed. Air passes through multiple heat exchanger units 50 sequentially from bottom to top in the first direction to exchange heat, ensuring the heat exchange effect.

[0028] Specifically, the first heat exchanger unit 501 includes a first plurality of (M) heat exchange elements 51 extending parallel to each other in a first height plane, and the second heat exchanger unit 502 includes a second plurality of (N) heat exchange elements 51 extending parallel to each other in a second height plane. The number of the first plurality of (M) heat exchange elements 51 and the second plurality of (N) heat exchange elements 51 is the same and is greater than or equal to three, i.e., M = N, M ≥ 3, and N ≥ 3. The heat exchange elements 51 in different height planes are set to be a plurality of the same number and in the same direction, so that the air flow channel 500 can be matched one-to-one, facilitating air circulation; fins are provided between two adjacent heat exchange elements 51 in the same height plane to accelerate heat exchange.

[0029] For further details, please refer to... Figure 5The first heat exchanger unit 501 includes a first manifold 521 and a second manifold 522 extending parallel to each other in a first height plane. The second heat exchanger unit 502 also includes a first manifold 521 and a second manifold 522 extending parallel to each other in a second height plane. Similarly, the third heat exchanger unit 503 also includes a first manifold 521 and a second manifold 522 extending parallel to each other in a third height plane, and so on. Further details are omitted here. The heat exchanger assembly 5 is connected to the inner wall of the housing 1 via a fixing plate 6, which includes a first fixing plate 61 and a second fixing plate 62. A plurality of first manifolds 521 are arranged parallel to each other and spaced apart in the first direction. The first manifolds 521 are connected to one of the inner sidewalls of the housing 1 via the first fixing plate 61. A plurality of second manifolds 522 are arranged parallel to each other and spaced apart in the first direction. The second manifolds 522 are connected to the other inner sidewall of the housing 1 via the second fixing plate 62.

[0030] In the specific embodiments of this application described above, among the plurality of heat exchanger units 50 spaced apart in the first direction, all the manifolds 52 are arranged vertically and parallelly, and are not connected. Please refer to [reference needed] for details. Figure 6 and Figure 8 In the modified embodiments of this application, please refer to Figure 7 and Figure 9 Each of the manifolds 52 has two free ends arranged in opposite directions. One free end of the first manifold 521 and one free end of the adjacent first manifold 521 are connected to form a first bend 5201. One free end of the second manifold 522 and one free end of the adjacent second manifold 522 form a second bend 5202. The first bend 5201 and the second bend 5202 connect the upper and lower heat exchanger units 50 into one unit, making the heat exchanger assembly 5 a whole, which is convenient for assembly.

[0031] The housing 1 is provided with an air inlet 101 and an air outlet 102. Both the air inlet 101 and the air outlet 102 are located on one side wall of the housing 1 along a second direction, and are distributed along a first direction. The fan 3 is a centrifugal fan, and has a shaft portion 30 extending axially along the second direction. The fan 3 has an air inlet port and an air outlet port. The air inlet port of the fan 3 faces the air inlet 101 of the housing 1, and the air outlet port of the fan 3 faces the heat exchanger assembly 5. The air outlet 102 is located above the heat exchanger assembly 5. The fan mounting plate 4 includes a base 41 and two side portions. The base 41 extends vertically in the first direction and has positioning holes 410 for positioning the shaft portion 30 of the fan 3. The two side portions include a first side portion 42 bent and connected to the top edge of the base 41 and a second side portion 43 bent and connected to the bottom edge of the base 41. The first side portion 42 is provided with a ventilation hole 420, which is used by the fan 3 to direct the centrifuged air to the upper space 12. The second side portion 43 is provided with a mounting hole 430, which is used for fasteners such as screws to pass through, so as to fix the fan mounting plate 4 to the bottom wall of the housing 1. The air outlet 102 of this application is concentrated at the top, which facilitates the exhaust of the air after heat exchange.

[0032] In summary, air enters the first space 11 through the air inlet 101 of this application, and under the centrifugal force of the fan 3, enters the upper space 12 to exchange heat with the heat exchanger assembly 5. Because a vertical airflow channel 500 is formed between two adjacent heat exchange elements 51 of the heat exchanger assembly 5, and this airflow channel 500 is continuous along the first direction, i.e., the vertical direction, this application arranges the heat exchanger assembly 5 horizontally. After entering the housing 1, under the action of centrifugal force, the air at the bottom of the housing 1... Air enters the airflow channel 500 directly from bottom to top for heat exchange, meaning that the airflow from the first space 11 to the upper space 12 does not need to turn 90 degrees. In other words, the arrangement direction of the fan 3 and the heat exchanger assembly 5 is the same as the through direction of the airflow channel 500 of the heat exchanger assembly 5, which reduces the resistance of the heat exchanger 51 to the wind. Furthermore, the air outlet of the fan 3 faces the heat exchanger assembly 5, allowing the air entering the housing 1 to naturally enter the airflow channel 500 of the heat exchanger assembly 5 for heat exchange, thus resulting in high heat exchange efficiency.

[0033] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has disclosed the preferred embodiment as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An air conditioning unit, characterized in that, The device includes a housing, a fan, and a heat exchanger assembly. The housing has three mutually perpendicular directions: a first direction, a second direction, and a third direction. The housing has a first space and a second space, which are interconnected in the first direction. The dimension of the second space in the second direction is smaller than that of the first space in the second direction, and the dimension of the second space in the third direction is larger than that in the second direction. The fan is located in the first space, and the heat exchanger assembly is located in the second space. The heat exchanger assembly includes at least one heat exchanger unit, and each heat exchanger unit includes multiple heat exchange elements. The heat exchange elements are flat tubes extending in the second direction or the third direction, and the multiple flat tubes are perpendicular to each other. The heat exchanger units are arranged at intervals along the first direction. Each heat exchanger unit has an airflow channel. The airflow channel is not only located between two adjacent flat tubes in front and behind or left and right, but also between the frontmost flat tube and the front baffle of the housing and the rearmost flat tube and the rear baffle of the housing. Alternatively, the leftmost flat tube and the left baffle of the housing and the rightmost flat tube and the right baffle of the housing also form part of the airflow channel. The airflow channel runs vertically along the first direction. The arrangement direction of the fan and the heat exchanger assembly is the same as the direction of the airflow channel. The flat tubes in different height planes are set to be the same number and in the same direction so that the airflow channels can correspond one-to-one, which facilitates air circulation. The fan has an air outlet port facing the heat exchanger assembly.

2. The air conditioning unit as described in claim 1, characterized in that, The second space is smaller than the first space in the second direction.

3. The air conditioning unit as described in claim 2, characterized in that, Each of the heat exchanger units includes at least one manifold, and at least one end of the heat exchanger element is inserted into the manifold.

4. The air conditioning unit as described in claim 3, characterized in that, Each heat exchanger unit includes a first manifold and a second manifold, which are arranged in parallel and located at opposite ends of the heat exchanger element; when multiple heat exchanger elements are arranged at intervals in the second direction, both the first manifold and the second manifold extend upward in the third direction. When the multiple heat exchangers are arranged at intervals in the third direction, both the first manifold and the second manifold extend in the second direction.

5. The air conditioning unit as described in claim 4, characterized in that, The heat exchanger assembly includes multiple heat exchanger units, which are spaced apart in the first direction. The heat exchanger units are connected to the inner wall of the housing by a fixing plate. The heat exchange element of at least one heat exchanger unit extends along a second direction, and / or the heat exchange element of at least one heat exchanger unit extends along a third direction.

6. The air conditioning unit as described in claim 5, characterized in that, Fins are provided between two adjacent heat exchange elements in each heat exchanger unit; The dimension of the second space in the third direction is greater than the dimension of the second space in the second direction; the airflow channel of the heat exchanger unit extends along the third direction.

7. The air conditioning unit as described in claim 6, characterized in that, The fixing plate includes a first fixing plate and a second fixing plate. The first manifolds of the plurality of heat exchanger units are arranged in parallel and spaced apart in the first direction. The second manifolds of the plurality of heat exchanger units are arranged in parallel and spaced apart in the first direction. The first manifolds are connected to one of the inner sidewalls of the housing along a third direction through the first fixing plate. The second manifolds are connected to the other inner sidewall of the housing along a third direction through the second fixing plate.

8. The air conditioning unit as described in claim 7, characterized in that, The heat exchanger assembly is a single piece, and each of the manifolds has two free ends arranged in opposite directions. One free end of the first manifold and one free end of the adjacent first manifold are connected to form a first bend, and one free end of the second manifold and one free end of the adjacent second manifold are connected to form a second bend.

9. The air conditioning unit as described in claim 1, characterized in that, The housing is provided with an air inlet and an air outlet. The fan is a centrifugal fan with a shaft that extends axially along the second direction. The fan has an air inlet facing the air inlet. The air outlet is located above the heat exchanger assembly. Both the air inlet and the air outlet are located on one side wall of the housing along the second direction. The air inlet and the air outlet are distributed along the first direction.

10. The air conditioning unit as described in claim 9, characterized in that, The air conditioning unit includes a fan mounting plate, which includes a base and two side portions. The base extends vertically in the first direction and has a positioning hole for positioning the shaft portion of the fan. The two side portions include a first side portion bent and connected to the top edge of the base and a second side portion bent and connected to the bottom edge of the base. At least the first side portion has a ventilation hole, and at least the second side portion has a mounting hole. The air conditioning unit includes a compressor located within the first space and connected to the heat exchanger assembly.

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