Patent ID: 12215876

The correspondence between reference signs and components inFIG.1toFIG.7is as follows.

1fin body;11refrigerant pipe mounting hole;12air inlet contour line;13air outlet contour line;14distance maximum point;15process notch;16equidistant region;17first position point;2heat exchanger;3fan;4shell;41air outlet;5waste region;61first plane;62second plane.

DETAILED DESCRIPTION OF THE DISCLOSURE

In order to understand the above objectives, features and advantages of the present disclosure more clearly, the present disclosure will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that embodiments and features in embodiments of the present disclosure can be combined with each other without conflict.

In the following description, many specific details are set forth in order to fully understand the present disclosure. However, the present disclosure can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present disclosure is not limited by the specific embodiments disclosed below.

A heat exchanger fin, a heat exchanger, an indoor unit, and an air conditioner are described below according to some embodiments of the present disclosure with reference toFIG.1toFIG.7.

Embodiment 1

In this embodiment, there is provided a heat exchanger fin. As shown inFIG.1, the heat exchanger fin includes an integrally-formed fin body1. The fin body1includes an air outlet contour line13arranged at one side and an air inlet contour line12arranged at the other side; and the fin body1is provided with refrigerant pipe mounting holes11for allowing refrigerant pipes to be mounted. The fin body1is concave in a direction from an air inlet side to an air outlet side, forming a curved shape. The distance between the air inlet contour line12and the air outlet contour line13of the fin body1, on a straight line of a curvature radius of the air outlet contour line13of the fin body1or on a straight line of a curvature radius of the air inlet contour line12of the fin body1, gradually decreases from a center to flanks of the heat exchanger fin. Accordingly, an internal diameter of the refrigerant pipe mounting hole11also gradually decreases from the center to the flanks of the heat exchanger fin; and the air inlet contour line12and the air outlet contour line13are connected by arcs at the flanks of the heat exchanger fin. There is a unique maximum value H3for the distance between the air inlet contour line12and the air outlet contour line13of the fin body1. Along a direction from a first end to a second end of the air inlet contour line12, the maximum distance point14is within ⅕ to ⅘ of the air inlet contour line12; and a straight line where the maximum distance point14is located extends along an air inlet direction for the heat exchanger fin. In specific, the maximum distance point14is located within a region where an air volume of an inlet air flow is maximum, thus allowing to increase a size of a region of the fin body1where the air volume is high and to reduce a size of a region of the fin body1where the air volume is low, to improve utilization of the fin body1, so that heat transfer efficiency is improved when the fin body1is provided with the refrigerant pipes. It should be noted that, as shown inFIG.1, the air inlet contour line12and the air outlet contour line13of the fin body1each are provided with a process notch15, to facilitate tailoring of the fin body1during processing.

Embodiment 2

In this embodiment, there is provided a heat exchanger fin. As shown inFIG.2, the heat exchanger fin includes an integrally-formed fin body1. The fin body1includes an air outlet contour line13arranged at one side and an air inlet contour line12arranged at the other side; and the fin body1is provided with refrigerant pipe mounting holes11for allowing refrigerant pipes to be mounted. The fin body1is concave in a direction from an air inlet side to an air outlet side, forming a curved shape. The distance between the air inlet contour line12and the air outlet contour line13of the fin body1, on a straight line of a curvature radius of the air outlet contour line13of the fin body1or on a straight line of a curvature radius of the air inlet contour line12of the fin body1, gradually decreases from a center to flanks of the heat exchanger fin. Accordingly, an internal diameter of the refrigerant pipe mounting hole11also gradually decreases from the center to the flanks of the heat exchanger fin; and the distance between the air inlet contour line12and the air outlet contour line13of the fin body1corresponding to the refrigerant pipe mounting hole11is positively correlated with the internal diameter of the refrigerant pipe mounting hole11. The air inlet contour line12and the air outlet contour line13are connected by arcs at the flanks of the heat exchanger fin. There is a unique maximum value H3for the distance between the air inlet contour line12and the air outlet contour line13of the fin body1. Along a direction from a first end to a second end of the air inlet contour line12, the maximum distance point14is within ⅕ to ⅘ of the air inlet contour line12; and a straight line where the maximum distance point14is located extends along an air inlet direction for the heat exchanger fin. In specific, the maximum distance point14is located within a region where an air volume of an inlet air flow is maximum, thus allowing to increase a size of a region of the fin body1where the air volume is high and to reduce a size of a region of the fin body1where the air volume is low, to improve utilization of the fin body1, so that heat transfer efficiency is improved when the fin body1is provided with the refrigerant pipe. In addition, at the maximum distance point14, on the straight line of the curvature radius of the air outlet contour line13of the fin body1or on the straight line of the curvature radius of the air inlet contour line12of the fin body1, the distance between the air inlet contour line12and the air outlet contour line13of the fin body1is H3, corresponding to which the internal diameter of the refrigerant pipe mounting hole11is P1; while at a first position point17, on the straight line of the curvature radius of the air outlet contour line13of the fin body1or on the straight line of the curvature radius of the air inlet contour line12of the fin body1, the distance between the air inlet contour line12and the air outlet contour line13of the fin body1is H4, corresponding to which the internal diameter of the refrigerant pipe mounting hole11is P2, where H3>H4and P1>P2. In other words, the longer the distance between the air inlet contour line12and the air outlet contour line13of the fin body1is, the larger the internal diameter of the corresponding refrigerant pipe mounting hole11is. It should be noted that, as shown inFIG.2, the air inlet contour line12and the air outlet contour line13of the fin body1each are provided with a process notch15, to facilitate tailoring of the fin body1during processing.

Embodiment 3

In this embodiment, there is provided a heat exchanger fin. As shown inFIG.3, the heat exchanger fin includes an integrally-formed fin body1. The fin body1includes an air outlet contour line13arranged at one side and an air inlet contour line12arranged at the other side; and the fin body1is provided with refrigerant pipe mounting holes11for allowing refrigerant pipes to be mounted. The fin body1is concave in a direction from an air inlet side to an air outlet side, forming a curved shape. The distance between the air inlet contour line12and the air outlet contour line13of the fin body1on a straight line of a curvature radius of the air outlet contour line13of the fin body1or on a straight line of a curvature radius of the air inlet contour line12of the fin body1, gradually decreases from a center to flanks of the heat exchanger fin. Accordingly, an internal diameter of the refrigerant pipe mounting hole11also gradually decreases from the center to the flanks of the heat exchanger fin; and the internal diameter of each refrigerant pipe mounting hole11is linear-positively correlated with a distance of circle centers between any two adjacent refrigerant pipe mounting holes11. The air inlet contour line12and the air outlet contour line13are connected by arcs at the flanks of the heat exchanger fin.

There is a unique maximum value H3for the distance between the air inlet contour line12and the air outlet contour line13of the fin body1. Along a direction from a first end to a second end of the air inlet contour line12, the maximum distance point14is within ⅕ to ⅘ of the air inlet contour line12; and a straight line where the maximum distance point14is located extends along an air inlet direction for the heat exchanger fin. In specific, the maximum distance point14is located within a region where an air volume of an inlet air flow is maximum, thus allowing to increase a size of a region of the fin body1where the air volume is high and to reduce a size of a region of the fin body1where the air volume is low, to improve utilization of the fin body1, so that heat transfer efficiency is improved when the fin body1is provided with the refrigerant pipe. In addition, at the maximum distance point14, on the straight line of the curvature radius of the air outlet contour line13of the fin body1or on the straight line of the curvature radius of the air inlet contour line12of the fin body1, the distance between the air inlet contour line12and the air outlet contour line13of the fin body1is H3; the distance of circle centers between two adjacent refrigerant pipe mounting holes11is Q1, corresponding to which the internal diameter of the refrigerant pipe mounting hole is P1; while at a first position point17, on the straight line of the curvature radius of the air outlet contour line13of the fin body1or on the straight line of the curvature radius of the air inlet contour line12of the fin body1, the distance between the air inlet contour line12and the air outlet contour line13of the fin body1is H4; the distance of circle centers between two adjacent refrigerant pipe mounting holes11is Q2, corresponding to which the internal diameter of the refrigerant pipe mounting hole is P2, where H3>H4, Q1>Q2and P1>P2. In other words, the longer the distance between the air inlet contour line12and the air outlet contour line13of the fin body1is, the greater the distance of circle centers between adjacent refrigerant pipe mounting holes11is, and the larger the internal diameter of the corresponding refrigerant pipe mounting hole11is. It should be noted that, as shown inFIG.3, the air inlet contour line12and the air outlet contour line13of the fin body1each are provided with a process notch15, to facilitate tailoring of the fin body1during processing.

Embodiment 4

In this embodiment, there is provided a heat exchanger fin. As shown inFIG.1, the heat exchanger fin includes an integrally-formed fin body1. The fin body1includes an air outlet contour line13arranged at one side and an air inlet contour line12arranged at the other side; and the fin body1is provided with refrigerant pipe mounting holes11for allowing refrigerant pipes to be mounted. The fin body1is concave in a direction from an air inlet side to an air outlet side, forming a curved shape. The distance between the air inlet contour line12and the air outlet contour line13of the fin body1, on a straight line of a curvature radius of the air outlet contour line13of the fin body1or on a straight line of a curvature radius of the air inlet contour line12of the fin body1, gradually decreases from a center to flanks of the heat exchanger fin. Accordingly, an internal diameter of the refrigerant pipe mounting hole11also gradually decreases from the center to the flanks of the heat exchanger fin; and the air inlet contour line12and the air outlet contour line13are connected by arcs at the flanks of the heat exchanger fin. There is a unique maximum value H3for the distance between the air inlet contour line12and the air outlet contour line13of the fin body1. Along a direction from a first end to a second end of the air inlet contour line12, the maximum distance point14is within ⅕ to ⅘ of the air inlet contour line12; and a straight line where the maximum distance point14is located extends along an air inlet direction for the heat exchanger fin. In specific, the maximum distance point14is located within a region where an air volume of an inlet air flow is maximum, thus allowing to increase a size of a region of the fin body1where the air volume is high and to reduce a size of a region of the fin body1where the air volume is low, to improve utilization of the fin body1, so that heat transfer efficiency is improved when the fin body1is provided with the refrigerant pipe.

As shown inFIG.4, the air inlet contour line12of the fin body1overlaps with part of the air outlet contour line13after translation, to minimize an area of a waste region between two adjacent fin bodies1in an entire piece of raw material when processing the fin body1, with the waste region5only existing between the flanks of adjacent fin bodies1, thus facilitating to improve material utilization and reducing manufacture cost. The air inlet contour line12and the air outlet contour line13of the fin body1each are provided with a process notch15, to facilitate tailoring of the fin body1during processing. The process notch15at the air inlet contour line12of each fin body1corresponds to the process notch15at the air outlet contour line13of the adjacent fin body1, for easy tailoring during processing.

In the present embodiment, during manufacture of the heat exchanger fin, a waste rate can be controlled below 6%, which is even lower than that of traditional non-standard shaped tailoring from a rectangle slice.

Embodiment 5

In this embodiment, there is provided a heat exchanger fin. As shown inFIG.1, the heat exchanger fin includes an integrally-formed fin body1. The fin body1includes an air outlet contour line13arranged at one side and an air inlet contour line12arranged at the other side; and the fin body1is provided with refrigerant pipe mounting holes11for allowing refrigerant pipes to be mounted. The fin body1is concave in a direction from an air inlet side to an air outlet side, forming a curved shape. The distance between the air inlet contour line12and the air outlet contour line13of the fin body1, on a straight line of a curvature radius of the air outlet contour line13of the fin body1or on a straight line of a curvature radius of the air inlet contour line12of the fin body1, gradually decreases from a center to flanks of the heat exchanger fin. Accordingly, an internal diameter of the refrigerant pipe mounting hole11also gradually decreases from the center to the flanks of the heat exchanger fin; and the air inlet contour line12and the air outlet contour line13are connected by arcs at the flanks of the heat exchanger fin. There is a unique maximum value H3for the distance between the air inlet contour line12and the air outlet contour line13of the fin body1. Along a direction from a first end to a second end of the air inlet contour line12, the maximum distance point14is within ⅕ to ⅘ of the air inlet contour line12; and a straight line where the maximum distance point14is located extends along an air inlet direction for the heat exchanger fin. In specific, the maximum distance point14is located within a region where an air volume of an inlet air flow is maximum, thus allowing to increase a size of a region of the fin body1where the air volume is high and to reduce a size of a region of the fin body1where the air volume is low, to improve utilization of the fin body1, so that heat transfer efficiency is improved when the fin body1is provided with the refrigerant pipe.

As shown inFIG.4, the air inlet contour line12and the air outlet contour line13of the fin body1each are provided with a process notch15, to facilitate tailoring of the fin body1during processing. The air inlet contour line12of the fin body1exactly overlaps with part of the air outlet contour line13after translation, to minimize an area of a waste region between two adjacent fin bodies1in an entire piece of raw material when processing the fin body1, with the waste region5only existing between the flanks of adjacent fin bodies1.

As shown inFIG.1, the entire length of the air inlet contour line12of the fin body1is divided unequally by the straight line corresponding to the maximum distance, where one part length of the air inlet contour line12that is above the straight line corresponding to the maximum distance is longer than the other part length of the air inlet contour line12that is below the straight line corresponding to the maximum distance. Accordingly, one part length of the air outlet contour line13of the fin body1that is above the straight line corresponding to the maximum distance is longer than the other part length of the air outlet contour line13that is below the straight line corresponding to the maximum distance. In some examples, the air inlet contour line12of the fin body1includes five arc segments connected in sequence, and the adjacent arc segments are of gradually decreasing curvatures from the center to the flanks of the heat exchanger fin; accordingly, the air outlet contour line13also includes five arc segments connected in sequence, and each arc segment of the air outlet contour line13is of a curvature identical to that of the corresponding arc segment of the air inlet contour line12, and the fin body1is divided into five regions with different curvatures from above to below. On the straight line of the curvature radius of the air outlet contour line13of the fin body1, H1, H2, H3, H4and H5are respective distances between the air inlet contour line12and the air outlet contour line13within the five regions, H1<H2<H3, and H5<H4<H3.

In some examples, a plane where the air inlet direction for the fin body1is located is referred to as a first plane61, i.e., the horizontal plane as shown inFIG.1is the first plane61; a plane which is perpendicular to the first plane61is a second plane62, i.e., the vertical plane as shown inFIG.1is the second plane62. The fin body1is of a projection size L1on the second plane62; the part of the fin body1above the straight line corresponding to the maximum distance is of a projection size L2on the first plane61and a projection size L5on the second plane62; and the part of the fin body1below the straight line corresponding to the maximum distance is of a projection size L3on the first plane61and a projection size L4on the second plane62, where L3<L2<L1and L4<L5.

It should be noted that, for the heat exchanger fin in this embodiment, the related projection size may also comply with L2≤L3and/or L5≤L4. In some examples, the fin body1may also be symmetrical relative to the straight line corresponding to the maximum distance.

On the straight line of the curvature radius of the air outlet contour line13of the fin body1or on the straight line of the curvature radius of the air inlet contour line12of the fin body1, there is the maximum distance between the air inlet contour line12and the air outlet contour line13of the fin body1. The straight line where the maximum distance is located is the straight line corresponding to the maximum distance.

Embodiment 6

In this embodiment, there is provided a heat exchanger fin. As shown inFIG.5, the heat exchanger fin includes an integrally-formed fin body1. The fin body1includes an air outlet contour line13arranged at one side and an air inlet contour line12arranged at the other side; and the fin body1is provided with refrigerant pipe mounting holes11for allowing refrigerant pipes to be mounted. The fin body1is concave in a direction from an air inlet side to an air outlet side, forming a curved shape. The distance between the air inlet contour line12and the air outlet contour line13of the fin body1, on a straight line of a curvature radius of the air outlet contour line13of the fin body1or on a straight line of a curvature radius of the air inlet contour line12of the fin body1, gradually decreases from a center to flanks of the heat exchanger fin. Accordingly, an internal diameter of the refrigerant pipe mounting hole11also gradually decreases from the center to the flanks of the heat exchanger fin; and the air inlet contour line12and the air outlet contour line13are connected by arcs at the flanks of the heat exchanger fin. The heat exchanger fin is formed as an equidistant region16at the center. Within the equidistant region16, the distance between the air inlet contour line12and the air outlet contour line13is equal on the straight line of the curvature radius of the air outlet contour line13of the fin body1. In other words, there are more than one maximum distance H3between the air inlet contour line12and the air outlet contour line13; and all maximum distance points14are within ⅕ to ⅘ of the air inlet contour line12along a first end to a second end of the air inlet contour line12. In specific, the air inlet contour line12and the air outlet contour line13within the equidistant region16are arcs, which are concave in the direction from the air inlet side to the air outlet side. The equidistant region16is located at the center where an air volume of an inlet air flow is maximum, thus allowing to increase a size of a region of the fin body1where the air volume is high and to reduce a size of a region of the fin body1where the air volume is low, to improve utilization of the fin body1, so that heat transfer efficiency is improved when the fin body1is provided with the refrigerant pipe. It should be noted that, as shown inFIG.5, the air inlet contour line12and the air outlet contour line13of the fin body1each are provided with a process notch15, to facilitate tailoring of the fin body1during processing.

Embodiment 7

In this embodiment, there is provided a heat exchanger fin. As shown inFIG.6, the heat exchanger fin includes an integrally-formed fin body1. The fin body1includes an air outlet contour line13arranged at one side and an air inlet contour line12arranged at the other side; and the fin body1is provided with refrigerant pipe mounting holes11for allowing refrigerant pipes to be mounted. The fin body1is concave in a direction from an air inlet side to an air outlet side, forming a curved shape. The distance between the air inlet contour line12and the air outlet contour line13of the fin body1, on a straight line of a curvature radius of the air outlet contour line13of the fin body1or on a straight line of a curvature radius of the air inlet contour line12of the fin body1, gradually decreases from a center to flanks of the heat exchanger fin. Accordingly, an internal diameter of the refrigerant pipe mounting hole11also gradually decreases from the center to the flanks of the heat exchanger fin; and the air inlet contour line12and the air outlet contour line13are connected by arcs at the flanks of the heat exchanger fin. The heat exchanger fin is formed as an equidistant region16at the center. Within the equidistant region16, the distance between the air inlet contour line12and the air outlet contour line13is equal on the straight line of the curvature radius of the air outlet contour line13of the fin body1. In other words, there are more than one maximum distance H3between the air inlet contour line12and the air outlet contour line13; and all maximum distance points14are within ⅕ to ⅘ of the air inlet contour line12along a first end to a second end of the air inlet contour line12. In specific, the air inlet contour line12and the air outlet contour line13within the equidistant region16are straight lines, which are perpendicular to an air inlet direction. The equidistant region16is located at the center where an air volume of an inlet air flow is maximum, thus allowing to increase a size of a region of the fin body1where the air volume is high and to reduce a size of a region of the fin body1where the air volume is low, to improve utilization of the fin body1, so that heat transfer efficiency is improved when the fin body1is provided with the refrigerant pipe. It should be noted that, as shown inFIG.6, the air inlet contour line12and the air outlet contour line13of the fin body1each are provided with a process notch15, to facilitate tailoring of the fin body1during processing.

Embodiment 8

In this embodiment, there is provided a heat exchanger fin. As shown inFIG.1, the heat exchanger fin includes an integrally-formed fin body1. The fin body1includes an air outlet contour line13arranged at one side and an air inlet contour line12arranged at the other side; and the fin body1is provided with refrigerant pipe mounting holes11for allowing refrigerant pipes to be mounted. The fin body1is concave in a direction from an air inlet side to an air outlet side, forming a curved shape. The distance between the air inlet contour line12and the air outlet contour line13of the fin body1, on a straight line of a curvature radius of the air outlet contour line13of the fin body1or on a straight line of a curvature radius of the air inlet contour line12of the fin body1, gradually decreases from a center to flanks of the heat exchanger fin. Accordingly, an internal diameter of the refrigerant pipe mounting hole11also gradually decreases from the center to the flanks of the heat exchanger fin; and the air inlet contour line12and the air outlet contour line13are connected by arcs at the flanks of the heat exchanger fin. There is a unique maximum value H3for the distance between the air inlet contour line12and the air outlet contour line13of the fin body1. Along a direction from a first end to a second end of the air inlet contour line12, the maximum distance point14is within ⅕ to ⅘ of the air inlet contour line12; and a straight line where the maximum distance point14is located extends along an air inlet direction for the heat exchanger fin. In specific, the maximum distance point14is located within a region where an air volume of an inlet air flow is maximum, thus allowing to increase a size of a region of the fin body1where the air volume is high and to reduce a size of a region of the fin body1where the air volume is low, to improve utilization of the fin body1, so that heat transfer efficiency is improved when the fin body1is provided with the refrigerant pipe. A distance between adjacent refrigerant pipe mounting holes11is positively correlated with a diameter of the refrigerant pipe mounting hole11, i.e., the larger the diameter of the refrigerant pipe mounting hole11is, the longer the distance between adjacent refrigerant pipe mounting holes11is.

As shown inFIG.4, the air inlet contour line12of the fin body1exactly overlaps with part of the air outlet contour line13after translation, to minimize an area of a waste region between two adjacent fin bodies1in an entire piece of raw material when processing the fin body1, with the waste region5only existing between the flanks of adjacent fin bodies1. The air inlet contour line12and the air outlet contour line13of the fin body1each are provided with a process notch15. The process notch15at the air inlet contour line12of each fin body1corresponds to the process notch15at the air outlet contour line13of the adjacent fin body1, for easy tailoring during processing.

As shown inFIG.1, the entire length of the air inlet contour line12of the fin body1is divided unequally by the straight line corresponding to the maximum distance, where one part length of the air inlet contour line12that is above the straight line corresponding to the maximum distance is longer than the other part length of the air inlet contour line12that is below the straight line corresponding to the maximum distance. Accordingly, one part length of the air outlet contour line13of the fin body1that is above the straight line corresponding to the maximum distance is longer than the other part length of the air outlet contour line13that is below the straight line corresponding to the maximum distance. In specific, the air inlet contour line12of the fin body1includes five arc segments connected in sequence, and the adjacent arc segments are of gradually decreasing curvatures from the center to the flanks of the heat exchanger fin; accordingly, the air outlet contour line13of the fin body1also includes five arc segments connected in sequence, and each arc segment of the air outlet contour line13is of a curvature identical to that of the corresponding arc segment of the air inlet contour line12, and the fin body1is divided into five regions with different curvatures from above to below. On the straight line of the curvature radius of the air outlet contour line13of the fin body1, H1, H2, H3, H4and H5are respective distances between the air inlet contour line12and the air outlet contour line13within the five regions, where H3is the maximum distance, H1<H2<H3, and H5<H4<H3. Further, a plane where the air inlet direction for the fin body1is located is referred to as a first plane61, i.e., the horizontal plane as shown inFIG.1is the first plane61, a plane perpendicular to the first plane61is a second plane62, i.e., the vertical plane as shown inFIG.1is the second plane62. The fin body1is of a projection size L1on the second plane62; the part of the fin body1above the straight line corresponding to the maximum distance is of a projection size L2on the first plane61and a projection size L5on the second plane62; and the part of the fin body1below the straight line corresponding to the maximum distance is of a projection size L3on the first plane61and a projection size L4on the second plane62, where L3<L2<L1and L4<L5.

It should be noted that, for the heat exchanger fin in this embodiment, the related projection size may also comply with L2≤L3and/or L5≤L4. In some example, the fin body1may also be symmetrical relative to the straight line corresponding to the maximum distance.

On the straight line of the curvature radius of the air outlet contour line12of the fin body or on the straight line of the curvature radius of the air inlet contour line of the fin body, there is the maximum distance between the air inlet contour line and the air outlet contour line of the fin body. The straight line where the maximum distance is located is the straight line corresponding to the maximum distance.

Embodiment 9

In this embodiment, there is provided a heat exchanger fin. As shown inFIG.1, the heat exchanger fin includes an integrally-formed fin body1. The fin body1includes an air outlet contour line13arranged at one side and an air inlet contour line12arranged at the other side; and the fin body1is provided with refrigerant pipe mounting holes11for allowing refrigerant pipes to be mounted. The fin body1is concave in a direction from an air inlet side to an air outlet side, forming a curved shape. The distance between the air inlet contour line12and the air outlet contour line13of the fin body1, on a straight line of a curvature radius of the air outlet contour line13of the fin body1or on a straight line of a curvature radius of the air inlet contour line12of the fin body1, gradually decreases from a center to flanks of the heat exchanger fin. Accordingly, an internal diameter of the refrigerant pipe mounting hole11also gradually decreases from the center to the flanks of the heat exchanger fin; the distance between the air inlet contour line12and the air outlet contour line13of the fin body1corresponding to the refrigerant pipe mounting hole11is positively correlated with the internal diameter of the refrigerant pipe mounting hole11; and the internal diameter of each refrigerant pipe mounting hole11is linear-positively correlated with a distance of circle centers between any two adjacent refrigerant pipe mounting holes11. The air inlet contour line12and the air outlet contour line13are connected by arcs at the flanks of the heat exchanger fin. There is a unique maximum value H3for the distance between the air inlet contour line12and the air outlet contour line13of the fin body1. Along a direction from a first end to a second end of the air inlet contour line12, the maximum distance point14is within ⅕ to ⅘ of the air inlet contour line12; and a straight line where the maximum distance point14is located extends along an air inlet direction for the heat exchanger fin.

In specific, as shown inFIG.3, the maximum distance point14is located within a region where an air volume of an inlet air flow is maximum, thus allowing to increase a size of a region of the fin body1where the air volume is high and to reduce a size of a region of the fin body1where the air volume is low, to improve utilization of the fin body1, so that heat transfer efficiency is improved when the fin body1is provided with the refrigerant pipe. In addition, at the maximum distance point14, on the straight line of the curvature radius of the air outlet contour line13of the fin body1or on the straight line of the curvature radius of the air inlet contour line12of the fin body1, the distance between the air inlet contour line12and the air outlet contour line13of the fin body1is H3, corresponding to which the internal diameter of the refrigerant pipe mounting hole11is P1, and the distance of circle centers between two adjacent refrigerant pipe mounting holes11is Q1; while at a first position point17, on the straight line of the curvature radius of the air outlet contour line13of the fin body1or on the straight line of the curvature radius of the air inlet contour line12of the fin body1, the distance between the air inlet contour line12and the air outlet contour line13of the fin body1is H4, corresponding to which the internal diameter of the refrigerant pipe mounting hole11is P2, and the distance of circle centers between two adjacent refrigerant pipe mounting holes11is Q2, where H3>H4, P1>P2and Q1>Q2. In other words, the longer the distance between the air inlet contour line12and the air outlet contour line13of the fin body1is, the greater the distance of circle centers between two adjacent refrigerant pipe mounting holes11is, and the larger the internal diameter of the corresponding refrigerant pipe mounting hole11is.

As shown inFIG.4, the air inlet contour line12of the fin body1exactly overlaps with part of the air outlet contour line13after translation, to minimize an area of a waste region between two adjacent fin bodies1in an entire piece of raw material when processing the fin body1, with the waste region5only existing between the flanks of adjacent fin bodies1. The air inlet contour line12and the air outlet contour line13of the fin body1each are provided with a process notch15. The process notch15at the air inlet contour line12of each fin body1corresponds to the process notch15at the air outlet contour line13of the adjacent fin body1, for easy tailoring during processing.

As shown inFIG.1, the entire length of the air inlet contour line12of the fin body1is divided unequally by the straight line corresponding to the maximum distance, where one part length of the air inlet contour line12that is above the straight line corresponding to the maximum distance is longer than the other part length of the air inlet contour line12that is below the straight line corresponding to the maximum distance. Accordingly, one part length of the air outlet contour line13of the fin body1that is above the straight line corresponding to the maximum distance is longer than the other part length of the air outlet contour line13that is below the straight line corresponding to the maximum distance. In specific, the air inlet contour line12of the fin body1includes five arc segments connected in sequence, and the adjacent arc segments are of gradually decreasing curvatures from the center to the flanks of the heat exchanger fin; accordingly, the air outlet contour line13also includes five arc segments connected in sequence, and each arc segment is of a curvature identical to that of the corresponding arc segment at the air inlet contour line12, and the fin body1is divided into five regions with different curvatures from above to below. On the straight line of the curvature radius of the air outlet contour line13of the fin body1, H1, H2, H3, H4and H5are respective distances between the air inlet contour line12and the air outlet contour line13within the five regions, where H3is the maximum distance, H1<H2<H3, and H5<H4<H3. Further, a plane where the air inlet direction for the fin body1is located is referred to as a first plane61, i.e., the horizontal plane as shown inFIG.1is the first plane61, a plane which is perpendicular to the first plane61is a second plane62, i.e., the vertical plane as shown inFIG.1is the second plane62. The fin body1is of a projection size L1on the second plane62; the part of the fin body1above the straight line corresponding to the maximum distance is of a projection size L2on the first plane61and a projection size L5on the second plane62; and the part of the fin body1below the straight line corresponding to the maximum distance is of a projection size L3on the first plane61and a projection size L4on the second plane62, where L3<L2<L1and L4<L5.

It should be noted that, for the heat exchanger fin in this embodiment, the related projection size may also comply with L2≤L3and/or L5≤L4. In some examples, the fin body1may also be symmetrical relative to the straight line corresponding to the maximum distance.

On a straight line of the curvature radius of the air outlet contour line13of the fin body1or on a straight line of the curvature radius of the air inlet contour line12of the fin body1, there is the maximum distance between the air inlet contour line12and the air outlet contour line13of the fin body1. The straight line where the maximum distance is located is the straight line corresponding to the maximum distance.

Embodiment 10

In this embodiment, there is provided a heat exchanger, including the heat exchanger fins as defined in any one of embodiments 1 to 9 and a refrigerant pipe. the heat exchanger fins is arranged side by side, and a distance between any two adjacent heat exchanger fins is not less than a preset interval, to guarantee normal circulation of the inlet air flow. The pipe diameter of the refrigerant pipe fits with a diameter of a refrigerant pipe mounting hole11of the heat exchanger fin. The refrigerant pipe is arranged passing through the refrigerant pipe mounting hole11, thus allowing heat exchange of air when the inlet air flow becomes in contact with the heat exchanger, achieving heat exchange by the heat exchanger. The heat exchanger in this embodiment has all beneficial advantages as described for the heat exchanger fin as described in any one of the above embodiments 1 to 9, which is not elaborated in detail here.

Embodiment 11

In this embodiment, there is provided an indoor unit. As shown inFIG.7, the indoor unit includes a shell4, a fan3and the heat exchanger2as described in the above embodiment10. The shell4is provided with an air inlet (not shown inFIG.7) and an air outlet41; the fan3and the heat exchanger2are arranged within the shell4, where the fan3drives air to flow from the air inlet to the air outlet41. The heat exchanger2is arranged between the fan3and the air outlet41of the shell4, and the heat exchanger2is arranged correspondingly to the fan3, allowing heat exchange for the air flow send by the fan3before discharge from the air outlet41of the shell4, thus achieving adjustment of air temperature. The indoor unit in this embodiment has all beneficial advantages as described for the heat exchanger2as described in the above embodiment 10, which is not elaborated in detail here.

Embodiment 12

In this embodiment, there is provided an air conditioner, including an outdoor unit and the indoor unit as described in the above embodiment 11 which is connected to the outdoor unit, thus allowing heat exchange for air by the indoor unit through refrigerant interaction between the outdoor unit and the indoor unit, achieving adjustment of air temperature. The air conditioner in this embodiment has all beneficial advantages as described for the indoor unit as described in the above embodiment 11, which is not elaborated in detail here.

The embodiments of the present disclosure are illustrated above with reference to drawings, which improve utilization of the heat exchanger fin; facilitate to improving heat exchange efficiency and reducing energy consumption; and reduce manufacture cost by decreasing the material waste.

In present disclosure, terms such as “first”, “second” and “third” are used herein for purposes of description and are not intended to indicate or imply relative importance; term “a plurality of” means two or more than two this features, unless specified otherwise; terms “mounted”, “connected”, “coupled”, “fixed” and the like are used broadly, and may be, for example, fixed connections, detachable connections, or integrated connections; may also be direct connections or indirect connections via intervening structures.

In the description of the present disclosure, it should be understood that, the terms indicating orientation or position relationship such as “above”, “below”, “left”, “right”, “front”, “rear” and the like should be construed to refer to the orientation or position relationship as described or as shown in the drawings. These terms are merely for convenience and concision of description and do not alone indicate or imply that the device or unit referred to must have a particular orientation or must be configured or operated in a particular orientation. Thus, it cannot be understood to limit the present disclosure.

Reference throughout this specification to “an embodiment”, “some embodiments”, “an example”, “a specific example” or “some examples” means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. Thus, the appearances of the phrases such as “in some embodiments”, “in one embodiment”, “in an embodiment”, “in another example”, “in an example”, “in a specific example” or “in some examples”, in various places throughout this specification are not necessarily referring to the same embodiment or example of the present disclosure. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.