Heat exchanger and air conditioner with better fin fitting effect
Patent Information
- Application Number
- CN202521415579.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-07
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-07-07
AI Technical Summary
[0005]本实用新型的一个目的在于，解决现有换热器的翅片嵌合效果较差的问题
[0018]基于前文的描述，本领域技术人员能够理解的是，在本实用新型前述的技术方案中，通过使片体部在远离管箍部的一侧形成凹槽，在管箍部远离片体部的一端设置向外延伸的翻边，并使翻边的外径与凹槽的内径之比大于或等于0.85并小于1，以及使翻边的外径与凹槽的内径的差值选自0.5mm至10mm中的任一数值，使得凹槽与翻边之间的间隙不会过大，也不会过小。所以本实用新型在冷媒管贯穿管箍部时，能够确保翻边嵌入与其相邻的翅片的凹槽内，提升了换热器的翅片的嵌合效果。
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Figure CN224743840U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of air conditioning technology, and specifically provides a heat exchanger and air conditioner with better fin fitting effect. Background Technology
[0002] A heat exchanger is a major component of an air conditioner, used to heat or cool the air flowing through the air conditioner, thereby heating or cooling the environment in which the air conditioner is located.
[0003] Existing heat exchangers typically consist of refrigerant pipes and multiple fins. Each fin has a clamp for thermal connection to the refrigerant pipes. Adjacent fins are usually interlocked by the clamps to prevent relative movement between fins, while also facilitating the refrigerant pipes to pass through multiple fins.
[0004] However, the fitting structure between adjacent fins via a clamp often results in an excessively large clearance, hindering the passage of refrigerant pipes; or an excessively small clearance, making it difficult for the fins to fit together when they bend or deform. Therefore, the fin fitting effect of existing heat exchangers is poor and needs further improvement. Utility Model Content
[0005] One objective of this invention is to solve the problem of poor fin fitting effect in existing heat exchangers.
[0006] To achieve the above objectives, the present invention provides a heat exchanger in a first aspect, comprising:
[0007] The refrigerant pipe has a diameter d selected from any value between 5.8 mm and 6.5 mm;
[0008] The fins include a fin body and at least one clamp portion through which the refrigerant pipe passes. The clamp portion protrudes from the fin body along its thickness direction, such that the fin body has a groove on the side away from the clamp portion. The end of the clamp portion away from the fin body is provided with an outwardly extending flange. The ratio of the outer diameter of the flange to the inner diameter of the groove is greater than or equal to 0.85 and less than 1. The difference between the outer diameter of the flange and the inner diameter of the groove is selected from any value from 0.5 mm to 10 mm, so as to ensure that the flange is embedded in the groove of the adjacent fin when the refrigerant pipe passes through the clamp portion.
[0009] Optionally, the ratio of the outer diameter of the flange to the inner diameter of the groove is selected from any value from 0.9 to 0.95, and / or the difference between the outer diameter of the flange and the inner diameter of the groove is selected from any value from 3 mm to 7 mm.
[0010] Optionally, the clamp portion includes an annular plate, an annular clamp, and a flange arranged sequentially in a direction away from the plate portion, the annular clamp being thermally connected to the refrigerant pipe; the first radius of the chamfer at the junction of the annular plate and the annular clamp is smaller than the second radius of the chamfer at the junction of the flange and the annular clamp.
[0011] Optionally, the ratio of the first radius to the thickness of the fin is selected from any value from 2 to 5; and / or, the ratio of the second radius to the thickness of the fin is selected from any value from 2 to 5.
[0012] Optionally, the ratio of the axial length of the annular hoop to the outer diameter of the flange is less than or equal to 0.2 to ensure the structural strength of the annular hoop; and / or, the ratio of the difference between the outer diameter of the flange and the outer diameter of the annular hoop to the thickness of the fin is selected from any value from 5 to 10.
[0013] Optionally, the annular piece, the flange, and the piece body are parallel to each other.
[0014] Optionally, the diameter d of the refrigerant pipe is selected from any value between 5.9 mm and 6.2 mm.
[0015] Optionally, the fin spacing L between two adjacent fins is selected from any value from 0.8 mm to 1.4 mm.
[0016] Optionally, 0.8mm ≤ L < 1mm.
[0017] The present invention provides an air conditioner in a second aspect, comprising the heat exchanger described in any one of the first aspects.
[0018] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of this utility model, by forming a groove on the side of the plate portion away from the clamp portion, and providing an outwardly extending flange at the end of the clamp portion away from the plate portion, and ensuring that the ratio of the outer diameter of the flange to the inner diameter of the groove is greater than or equal to 0.85 and less than 1, and that the difference between the outer diameter of the flange and the inner diameter of the groove is selected from any value between 0.5mm and 10mm, the gap between the groove and the flange is neither too large nor too small. Therefore, when the refrigerant pipe passes through the clamp portion, this utility model can ensure that the flange is embedded in the groove of the adjacent fin, improving the fin fitting effect of the heat exchanger.
[0019] Furthermore, by making the first radius of the chamfer at the junction of the annular piece and the annular hoop smaller than the second radius of the chamfer at the junction of the flange and the annular hoop, the part of the annular hoop closer to the flange is more likely to deform when the annular hoop is squeezed by a force from the inside out.
[0020] Furthermore, by making the annular plate, the flange, and the plate body parallel to each other, two adjacent clamp parts can achieve surface contact through the annular plate and the flange.
[0021] Other beneficial effects of this utility model will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the improvement purpose, features and advantages of this utility model. Attached Figure Description
[0022] To more clearly illustrate the technical solution of this utility model, some embodiments of this utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that the same reference numerals may indicate the same or similar components or parts in different drawings; the drawings of this utility model are not necessarily drawn to scale. In the drawings:
[0023] Figure 1 This is a schematic diagram of the structure of a heat exchanger provided by this utility model;
[0024] Figure 2 This is a partial top view of the fins in some embodiments of this utility model;
[0025] Figure 3 yes Figure 2 A cross-sectional view of the middle fin along the AA direction (showing one fin);
[0026] Figure 4 yes Figure 2 A cross-sectional view of the middle fin along the AA direction (showing two fins);
[0027] Figure 5 This is a schematic diagram of an air conditioner provided by this utility model.
[0028] Explanation of reference numerals in the attached figures:
[0029] 001. Heat exchanger;
[0030] 100. Refrigerant pipe; 110. Pipe section;
[0031] 200, fin; 201, groove; 210, plate body; 220, clamp part; 221, flange; 222, annular plate; 223, annular clamp;
[0032] 002, Air conditioner; 300, Indoor unit of air conditioner; 400, Outdoor unit of air conditioner. Detailed Implementation
[0033] Those skilled in the art should understand that the embodiments described below are merely some embodiments of the present invention, and not all embodiments of the present invention. These embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.
[0034] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the corresponding device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0035] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. For example, unless otherwise specified, the terms "installation," "connection," "joining," and "fixing" can specifically refer to any feasible connection form such as bolt connection, screw connection, welding, insertion, riveting, fusion welding, or snap-fit.
[0036] Furthermore, it should be noted that in the description of this utility model, mm represents millimeter, cm represents centimeter, and m represents meter.
[0037] Furthermore, it should be noted that in the description of this utility model, the terms "coldness" and "heat" are two descriptions of the same physical state. That is, the higher the "coldness" of a target object (e.g., evaporator, air, condenser, etc.), the lower its "heat," and vice versa. A target object absorbs "coldness" while releasing "heat," and releases "coldness" while absorbing "heat." A target object retains "coldness" or "heat" to maintain its current temperature. "Refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon; that is, a target object (e.g., evaporator) absorbs heat while refrigerating.
[0038] like Figure 1 As shown, the heat exchanger 001 of this utility model includes a refrigerant pipe 100 and multiple fins 200. The refrigerant pipe 100 and the fins 200 are thermally connected, specifically by contacting each other and fixing them together by means of clamping, welding, etc., so that heat can be transferred between the refrigerant pipe 100 and the fins 200. That is, heat can be conducted from the refrigerant pipe 100 to the fins 200, or from the fins 200 to the refrigerant pipe 100.
[0039] It should be noted that this utility model Figure 1 The heat exchanger 001 shown is intended to illustrate the configuration of the heat exchanger 001 and does not imply that the heat exchanger 001 of this utility model is only of this one form. Those skilled in the art can, as needed, arrange the pipe segments 110 of the refrigerant pipe 100 penetrating the fins 200 into one, two, three, or more rows. In this utility model, the pipe segments 110 in the same row are along the length direction of the fins 200 (e.g., ...). Figure 1 and Figure 2 (As shown). Furthermore, a certain pipe segment 110 in a certain column and the pipe segment 110 in the adjacent column that is closest to that pipe segment 110 can be aligned or misaligned with each other.
[0040] like Figure 1 and Figure 2 As shown, in the first embodiment of this utility model, the diameter d of the refrigerant pipe 100 is selected from any value from 5.8mm to 6.5mm, the refrigerant pipe 100 includes a plurality of pipe segments 110, and the pipe distance H between two adjacent pipe segments 110 is selected from any value from 17.1mm to 22.5mm.
[0041] from Figure 2 As can be seen, the length direction of the tube spacing H is perpendicular to the width direction of the fin 200, so that the tube segments 110 in each row are arranged along the length direction of the fin 200. Of course, in other embodiments of this utility model, those skilled in the art can also, as needed, make the length direction of the tube spacing H form a certain angle with the width direction of the fin 200, so that the tube segments 110 in each row are arranged obliquely on the fin 200.
[0042] The pipe diameter d can be any feasible value such as 5.8mm, 5.85mm, 5.9mm, 6.0mm, 6.01mm, 6.2mm, 6.3mm, or 6.5mm. Furthermore, the pipe diameter d can be the size of the refrigerant pipe 100 before assembly with the fins 200, or the size after assembly with the fins 200.
[0043] Furthermore, the pipe diameter d of each pipe section 110 is selected from any value between 5.9mm and 6.2mm, specifically any feasible value such as 5.9mm, 5.95mm, 5.98mm, 6.0mm, 6.03mm, 6.045mm, 6.05mm, 6.08mm, 6.12mm, 6.15mm, 6.2mm, etc.
[0044] In the first embodiment of this utility model, the pipe spacing H can be any feasible value such as 17.1mm, 17.2mm, 17.5mm, 18.1mm, 18.6mm, 19.1mm, 19.55mm, 19.8mm, 20.0mm, 20.3mm, 20.7mm, 20.9mm, 21.3mm, 21.8mm, 22.0mm, 22.35mm, 22.4mm, 22.5mm, etc.
[0045] like Figures 1 to 4 As shown, in the first embodiment of this utility model, there are multiple fins 200, each of which is penetrated by multiple tube segments 110. The width W of the fin 200 is selected from any value between 18 mm and 23 mm, and the fin spacing L between two adjacent fins 200 is selected from any value between 0.8 mm and 1.4 mm.
[0046] The width W of the fin 200 can be any feasible value such as 18mm, 18.5mm, 19mm, 19.8mm, 20.0mm, 20.5mm, 21.0mm, 21.3mm, 22.0mm, 22.7mm, or 23mm.
[0047] The spacing L can be any feasible value such as 0.8mm, 0.85mm, 0.87mm, 0.9mm, 0.93mm, 0.97mm, 1.0mm, 1.05mm, 1.1mm, 1.15mm, 1.2mm, 1.25mm, 1.3mm, 1.38mm, or 1.4mm.
[0048] Furthermore, 0.8mm ≤ L < 1mm. L can be any feasible value such as 0.8mm, 0.83mm, 0.85mm, 0.9mm, 0.93mm, 0.94mm, 0.97mm, 0.98mm, 0.99mm, etc.
[0049] In the first embodiment of this utility model, 0.743 ≤ H / W < 1. The specific value of H / W can be any feasible value such as 0.743, 0.748, 0.75, 0.765, 0.81, 0.875, 0.921, 0.987, etc.
[0050] Furthermore, 0.758 ≤ H / W < 1.
[0051] Those skilled in the art will understand that by selecting the diameter d of the refrigerant pipe 100 from any value between 5.8 mm and 6.5 mm, and by selecting the ratio between the pipe spacing H and the width W of the fin 200 from any value between [0.743, 1), the density of the pipe segments 110 penetrating the fin 200 is increased. Simultaneously, by using refrigerant pipes 100 with diameters between 5.8 mm and 6.5 mm, the heat exchange performance between the fins 200 and the refrigerant pipe 100 is improved, while minimizing the obstruction of the refrigerant pipe 100 to the airflow. Based on this, the present invention can reduce the size of the heat exchanger 001 while ensuring that the heat exchange performance of the heat exchanger 001 remains unchanged, thereby facilitating the miniaturization of the air conditioner 002.
[0052] like Figure 3 As shown, in some embodiments of this utility model, the fin 200 includes a fin portion 210 and at least one clamp portion 220 through which the refrigerant pipe 100 passes. The clamp portion 220 protrudes from the fin portion 210 along the thickness direction, such that a groove 201 is formed on the side of the fin portion 210 away from the clamp portion 220, and an outwardly extending flange 221 is provided at the end of the clamp portion 220 away from the fin portion 210. The ratio of the outer diameter φ1 of the flange 221 to the inner diameter φ2 of the groove 201 is greater than or equal to 0.85 and less than 1, and the difference between the outer diameter φ1 of the flange 221 and the inner diameter φ2 of the groove 201 is selected from any value from 0.5 mm to 10 mm, so as to ensure that the flange 221 is embedded in the groove 201 of the adjacent fin 200 when the refrigerant pipe 100 passes through the clamp portion 220 (e.g., Figure 4 (As shown).
[0053] Furthermore, the ratio of the outer diameter φ1 of the flange 221 to the inner diameter φ2 of the groove 201 is selected from any value from 0.9 to 0.95, and / or the difference between the outer diameter φ1 of the flange 221 and the inner diameter φ2 of the groove 201 is selected from any value from 3 mm to 7 mm.
[0054] In some embodiments of this utility model, the ratio of the outer diameter φ1 of the flange 221 to the inner diameter φ2 of the groove 201 can be any feasible value such as 0.85, 0.89, 0.9, 0.91, 0.93, 0.95, 0.96, 0.99, 1, etc. The difference between the outer diameter φ1 of the flange 221 and the inner diameter φ2 of the groove 201 can be any feasible value such as 0.5mm, 0.8mm, 0.9mm, 1mm, 1.5mm, 2.5mm, 3mm, 4.5mm, 5mm, 6mm, 6.7mm, 7mm, etc.
[0055] like Figure 3As shown, in some embodiments of this utility model, the clamp portion 220 includes an annular plate 222, an annular clamp 223, and a flange 221 sequentially distributed in a direction away from the plate portion 210. The annular clamp 223 is thermally connected to the refrigerant pipe 100. Specifically, the annular clamp 223 and the refrigerant pipe 100 are in contact with each other and fixed together by clamping, welding, or other means, so that heat can be transferred between the refrigerant pipe 100 and the fins 200.
[0056] like Figure 3 and Figure 4 As shown, the annular plate 222, the flange 221, and the plate body 210 are parallel to each other so that two adjacent clamp parts 220 can achieve surface contact with the flange 221 through the annular plate 222.
[0057] like Figure 3 As shown, in some embodiments of this utility model, the first radius R1 of the chamfer at the junction of the annular piece 222 and the annular hoop 223 is smaller than the second radius R2 of the chamfer at the junction of the flange 221 and the annular hoop 223.
[0058] R1 and R2 can be selected from any value from 0.05mm to 3mm, and preferably from any value from 0.1mm to 1mm.
[0059] R1 can be any feasible value such as 0.05mm, 0.07mm, 0.09mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.7mm, 0.9mm, 1mm, 1.5mm, 2.1mm, 2.7mm, 3mm, etc.
[0060] R2 can be any feasible value such as 0.05mm, 0.07mm, 0.09mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.7mm, 0.9mm, 1mm, 1.5mm, 2.1mm, 2.7mm, 3mm, etc.
[0061] Furthermore, the ratio of the first radius R1 to the thickness T of the fin 200 is selected from any value from 2 to 5, specifically any feasible value such as 2, 2.5, 3, 3.4, 4, 4.2, 5, etc.
[0062] Accordingly, the ratio of the second radius R2 to the thickness T of the fin 200 is selected from any value from 2 to 5, specifically any feasible value such as 2, 2.5, 3, 3.4, 4, 4.2, 5, etc.
[0063] like Figure 3As shown, in some embodiments of this utility model, the sum S of the thicknesses of the annular piece 222 and the piece body portion 210 is more than twice the thickness T of the piece body portion 210, so as to prevent the flange 221 from being exposed from the groove 201.
[0064] like Figure 3 As shown, in some embodiments of this utility model, the ratio of the axial length G of the annular hoop 223 to the outer diameter φ1 of the flange 221 is less than or equal to 0.2 to ensure the structural strength of the annular hoop 223.
[0065] Furthermore, the ratio of the difference between the outer diameter φ1 of the flange 221 and the outer diameter φ3 of the annular hoop 223 to the thickness T of the fin 200 is selected from any value between 5 and 10. That is, 5≤(φ1-φ3) / T≤10, so that the fin 200 can be formed in one step by stamping process.
[0066] Based on the foregoing description, those skilled in the art will understand that the fins 200 of this utility model, based on the aforementioned parameter limitations of the clamp portion 220, can have good clamping force and sealing performance with the refrigerant pipe 100, and optimize the heat transfer performance between the fins 200 and the refrigerant pipe 100. Furthermore, it facilitates the processing and installation between the fins 200 and the refrigerant pipe 100, and enhances the structural stability between the fins 200 and the refrigerant pipe 100.
[0067] like Figure 5 As shown, the present invention also provides an air conditioner 002, which includes the heat exchanger 001 described in any of the preceding embodiments.
[0068] The air conditioner 002 of this utility model can be a split-type air conditioner or an integrated air conditioner.
[0069] Among them, split-type air conditioners, such as Figure 5 The illustrated unit includes an indoor air conditioning unit 300 and an outdoor air conditioning unit 400. The indoor air conditioning unit 300 can be a wall-mounted air conditioner, a floor-standing air conditioner, a ducted air conditioner, a ceiling-mounted air conditioner, etc. The heat exchanger 001 described in any of the preceding embodiments can be arranged in the indoor air conditioning unit 300 or in the outdoor air conditioning unit 400.
[0070] Among them, the integrated air conditioner can be a window unit.
[0071] The technical solution of this utility model has been described in conjunction with several embodiments above. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is not limited to these specific embodiments. Without departing from the technical principles of this utility model, those skilled in the art can disassemble and combine the technical solutions in the above embodiments, and can also make equivalent changes or substitutions to the relevant technical features. Any changes, equivalent substitutions, improvements, etc., made within the technical concept and / or technical principles of this utility model will fall within the protection scope of this utility model.
[0072] Finally, it should be noted that in this invention, the term "connection" refers to fluid communication, allowing fluid (e.g., air, liquid) to flow between two interconnected entities. Furthermore, this "connection" can be either a leak-free flow of fluid between two interconnected entities, or a flow with slight leakage between two interconnected entities.
Claims
1. A heat exchanger, characterized in that, include: The refrigerant pipe has a diameter d selected from any value between 5.8 mm and 6.5 mm; The fins include a fin body and at least one clamp portion through which the refrigerant pipe passes. The clamp portion protrudes from the fin body along its thickness direction, such that the fin body has a groove on the side away from the clamp portion. The end of the clamp portion away from the fin body is provided with an outwardly extending flange. The ratio of the outer diameter of the flange to the inner diameter of the groove is greater than or equal to 0.85 and less than 1. The difference between the outer diameter of the flange and the inner diameter of the groove is selected from any value from 0.5 mm to 10 mm, so as to ensure that the flange is embedded in the groove of the adjacent fin when the refrigerant pipe passes through the clamp portion.
2. The heat exchanger according to claim 1, characterized in that, The ratio of the outer diameter of the flange to the inner diameter of the groove is selected from any value between 0.9 and 0.95, and / or, The difference between the outer diameter of the flange and the inner diameter of the groove is selected from any value between 3 mm and 7 mm.
3. The heat exchanger according to claim 1, characterized in that, The pipe clamp portion includes an annular plate, an annular clamp, and a flange arranged sequentially in a direction away from the plate portion, and the annular clamp is thermally connected to the refrigerant pipe; The first radius of the chamfer at the junction of the annular piece and the annular hoop is smaller than the second radius of the chamfer at the junction of the flange and the annular hoop.
4. The heat exchanger according to claim 3, characterized in that, The ratio of the first radius to the thickness of the fin is selected from any value between 2 and 5; and / or, The ratio of the second radius to the thickness of the fin is selected from any value between 2 and 5.
5. The heat exchanger according to claim 3, characterized in that, The ratio of the axial length of the annular hoop to the outer diameter of the flange is less than or equal to 0.2 to ensure the structural strength of the annular hoop; and / or, The ratio of the difference between the outer diameter of the flange and the outer diameter of the annular hoop to the thickness of the fin is selected from any value between 5 and 10.
6. The heat exchanger according to claim 3, characterized in that, The annular piece, the flange, and the piece body are parallel to each other.
7. The heat exchanger according to any one of claims 1 to 6, characterized in that, The diameter d of the refrigerant pipe is selected from any value between 5.9 mm and 6.2 mm.
8. The heat exchanger according to any one of claims 1 to 6, characterized in that, The fin spacing L between two adjacent fins is selected from any value between 0.8 mm and 1.4 mm.
9. The heat exchanger according to claim 8, characterized in that, 0.8mm≤L<1mm.
10. An air conditioner, characterized in that, The heat exchanger includes any one of claims 1 to 9.