Heat exchanger and refrigeration equipment
By designing a heat exchanger with the plate body connected to the heat exchange pipe and the fin and the plate body as an integrated structure, the problem of low efficiency of the existing heat exchanger is solved, and efficient heat transfer and power consumption reduction is achieved.
Patent Information
- Application Number
- CN202420503810.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-14
AI Technical Summary
The existing heat exchanger has low heat exchange efficiency, resulting in higher power consumption of refrigeration equipment.
A heat exchanger including a plate body, a heat exchange tube and a fin is designed. The plate body is connected to the heat exchange tube, and the fin and the plate body are integrated, which enhances the efficiency of heat transfer.
By reducing the thermal resistance between the fins and the plate body and utilizing the large surface area of the fins, the rapid transfer of heat is achieved, the heat exchange efficiency is improved, and the power consumption of the refrigeration equipment is reduced.
Smart Images
Figure CN222598093U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of heat exchangers, and in particular to a heat exchanger and a refrigeration device. Background Art
[0002] A heat exchanger is a device that transfers heat between two contacting fluids by utilizing heat transfer between different substances. It is also an important heat exchange component in refrigeration equipment. For example, the evaporator and condenser in refrigerators and air conditioners are both heat exchangers. However, the heat exchange efficiency of existing heat exchangers is low, resulting in high power consumption of refrigeration equipment. Utility Model Content
[0003] Based on this, an embodiment of the present application provides a heat exchanger and a refrigeration device.
[0004] In a first aspect, an embodiment of the present application provides a heat exchanger, comprising a heat exchange plate, wherein the heat exchange plate comprises a plate body, a heat exchange tube and a fin, wherein the plate body is connected to the heat exchange tube, the fin is located on the outer surface of the plate body and connected to the plate body, and the fin and the plate body are an integral structure.
[0005] In some embodiments, the plate body and the heat exchange tube are an integrated structure.
[0006] In some embodiments, the plate body has a first surface and a second surface disposed opposite to each other, and the distance between the first surface and the second surface is the thickness of the plate body;
[0007] A side of the heat exchange tube close to the first surface protrudes from the first surface; and / or
[0008] A side of the heat exchange tube close to the second surface protrudes from the second surface.
[0009] In some embodiments, the heat exchange tube is a round tube, and the diameter of the heat exchange tube is greater than the thickness of the plate.
[0010] In some embodiments, the heat exchange plate includes a plurality of heat exchange tubes, the plate body has a first end face and a second end face arranged opposite to each other, the distance between the first end face and the second end face is the width of the plate body, and the plurality of heat exchange tubes are embedded in the plate body and are arranged in sequence at intervals in the direction from the first end face to the second end face.
[0011] In some embodiments, the plate body is divided into a plurality of partitions by the plurality of heat exchange tubes, each partition is provided with a plurality of fins, and the plurality of fins are arranged in sequence in each partition according to the extension direction of the heat exchange tubes.
[0012] In some embodiments, the plate body has a third end face and a fourth end face that are arranged opposite to each other, one end of the plurality of heat exchange tubes is exposed to the third end face, and the other end of the plurality of heat exchange tubes is exposed to the fourth end face;
[0013] The heat exchanger further comprises a plurality of connecting pipes, and the number of the heat exchange pipes in the heat exchange plate is an odd number;
[0014] In the third end surface, the opening of the heat exchange tube closest to the second end surface serves as the first inlet and outlet of the refrigerant in the heat exchanger, and the remaining even-numbered heat exchange tubes are sequentially divided into groups in the direction from the first end surface to the second end surface, each group of heat exchange tubes includes two adjacent heat exchange tubes, and the openings of each group of heat exchange tubes exposed to the third end surface are connected by the connecting pipe;
[0015] In the fourth end face, the opening of the heat exchange tube closest to the first end face serves as the second inlet and outlet of the refrigerant in the heat exchanger, and the remaining even number of heat exchange tubes are divided into groups in sequence from the first end face to the second end face, each group of heat exchange tubes includes two adjacent heat exchange tubes, and the openings of each group of heat exchange tubes exposed to the third end face are connected by the connecting pipe.
[0016] In some embodiments, the plate body includes a plurality of straight portions and at least one bent portion, the bent portion is used to connect two adjacent straight portions, and the plurality of straight portions are parallel to each other;
[0017] The straight portion and the bent portion are alternately arranged in an extension direction from the third end surface to the fourth end surface of the plate body.
[0018] In some embodiments, a portion corresponding to the straight portion in each partition of the plate body is provided with fins, and a portion corresponding to the bent portion in each partition of the plate body is not provided with fins.
[0019] In a second aspect, an embodiment of the present application provides a refrigeration device, comprising the heat exchanger as described above.
[0020] The heat exchanger provided in the embodiment of the present application includes a plate body, a heat exchange tube and a fin, wherein the plate body is connected to the heat exchange tube, and the plate body is connected to the fin. Since the plate body and the fin are an integral structure, the contact thermal resistance between the fin and the plate body is low, so that heat can be quickly transferred between the fin and the plate body. Since the plate body is connected to the heat exchange tube, the heat of the fluid in the heat exchange tube (such as refrigerant) can be transferred to the plate body and then to the fin. Since the fin has a large surface area and has a strong heat exchange function, heat can be quickly transferred between the fluid in the heat exchange tube and the fluid on the surface of the fin (such as air), so that the heat exchanger has a higher heat exchange efficiency, thereby reducing the power consumption of the refrigeration equipment using the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments.
[0022] Figure 1 This is a schematic structural diagram of the heat exchanger provided in an embodiment of the present application from a first angle.
[0023] Figure 2 A schematic structural diagram of a heat exchanger at a second angle provided in an embodiment of the present application.
[0024] Figure 3 This is a schematic structural diagram of the heat exchanger provided in an embodiment of the present application from a third angle.
[0025] Component Symbols:
[0026] 100-heat exchanger; 110-heat exchange plate; 20-plate body; 11-first surface; 12-second surface; 13-first end face; 14-second end face; 15-third end face; 16-fourth end face; 60-partition; 71-straight portion; 72-bending portion; 30-heat exchange tube; 40-fin; 50-connecting tube. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.
[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.
[0029] See also Figures 1 to 3 The embodiment of the present application provides a heat exchanger 100, including a heat exchange plate 110, wherein the heat exchange plate 110 includes a plate body 20, a heat exchange tube 30 and a fin 40, wherein the plate body 20 is connected to the heat exchange tube 30, and the fin 40 is located on the outer surface of the plate body 20 and connected to the plate body 20, and the fin 40 and the plate body 20 are an integral structure.
[0030] It can be understood that when the heat exchanger 100 of the embodiment of the present application is used as an evaporator or a condenser in a refrigeration device, the heat exchange tube 30 can be filled with a refrigerant (such as Freon, etc.).
[0031] The heat exchanger 100 provided in the embodiment of the present application includes a plate body 20, a heat exchange tube 30 and a fin 40, wherein the plate body 20 is connected to the heat exchange tube 30, and the plate body 20 is connected to the fin 40. Since the plate body 20 and the fin 40 are an integral structure, the contact thermal resistance between the fin 40 and the plate body 20 is low, so that heat can be quickly transferred between the fin 40 and the plate body 20. Since the plate body 20 is connected to the heat exchange tube 30, the heat of the fluid (such as refrigerant) in the heat exchange tube 30 can be transferred to the plate body 20 and then to the fin 40. Since the fin 40 has a large surface area and a strong heat exchange function, the fluid in the heat exchange tube 30 and the fluid on the surface of the fin 40 (such as air) can quickly transfer heat, so that the heat exchanger 100 has a higher heat exchange efficiency, thereby reducing the power consumption of the refrigeration equipment using the heat exchanger 100.
[0032] Exemplarily, the fins 40 are prepared by a spatula process.
[0033] Exemplarily, the plate body 20 and the heat exchange tube 30 are an integral structure.
[0034] Exemplarily, the plate body 20 and the heat exchange tube 30 are prepared by an extrusion molding process.
[0035] See also Figures 1 to 3 The plate body 20 has a first surface 11 and a second surface 12 that are arranged opposite to each other, and the distance between the first surface 11 and the second surface 12 is the thickness of the plate body 20 .
[0036] Exemplarily, the thickness of the plate body 20 may be 5 mm to 40 mm, for example, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, etc.
[0037] See also Figures 1 to 3 , a side of the heat exchange tube 30 close to the first surface 11 protrudes from the first surface 11 .
[0038] See also Figures 1 to 3 , a side of the heat exchange tube 30 close to the second surface 12 protrudes from the second surface 12 .
[0039] See also Figure 1 and Figure 3The heat exchange tube 30 is a round tube, and the diameter of the heat exchange tube 30 is greater than the thickness of the plate body 20. Exemplarily, the diameter of the heat exchange tube 30 can be 10 mm to 50 mm, such as 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, etc.
[0040] It is understandable that, in some other embodiments, the diameter of the heat exchange tube 30 may also be equal to or less than the thickness of the plate body 20 .
[0041] See also Figure 1 and Figure 3 It can be understood that when the heat exchange tube 30 is a round tube, the cross-section of the heat exchange tube 30 is circular. In other embodiments, the cross-section of the heat exchange tube 30 can also be various shapes such as rectangle, square, triangle, rhombus, pentagon, hexagon, etc.
[0042] See also Figure 1 and Figure 3 The heat exchange plate 110 includes a plurality of heat exchange tubes 30, the plate body 20 has a first end face 13 and a second end face 14 that are oppositely arranged, the distance between the first end face 13 and the second end face 14 is the width of the plate body 20, and the plurality of heat exchange tubes 30 are all embedded in the plate body 20 and are arranged in sequence from the first end face 13 to the second end face 14.
[0043] It should be noted that, in the embodiments of the present application, a plurality refers to two or more than two, for example, three, four, five, six, seven, eight, nine, ten, etc.
[0044] See also Figure 1 and Figure 3 , illustratively, the plurality of heat exchange tubes 30 are parallel to each other.
[0045] See also Figure 1 and Figure 3 The plate body 20 is divided into a plurality of partitions 60 by the plurality of heat exchange tubes 30 , and a plurality of fins 40 are disposed in each partition 60 . The plurality of fins 40 are arranged in sequence in each partition 60 according to the extension direction of the heat exchange tubes 30 .
[0046] It is understandable that the angle between the fin 40 and the plate body 20 is greater than 0 degree; illustratively, the angle between the fin 40 and the plate body 20 is 10° to 170°, such as 10°, 30°, 60°, 90°, 110°, 130°, 150°, 170°, etc.
[0047] See also Figure 1 and Figure 3, exemplarily, the plurality of fins 40 within each partition 60 are parallel to each other.
[0048] See also Figure 1 and Figure 3 The included angles between the fins 40 in all the partitions 60 on the plate body 20 and the plate body 20 are the same, that is, the fins 40 in all the partitions 60 are parallel to each other.
[0049] In some other embodiments, in the direction from the first end face 13 to the second end face 14, the angles between the fins 40 and the plate body 20 in any two adjacent partitions 60 are different. For example, the sum of the angles between the fins 40 and the plate body 20 in any one partition 60 and the angles between the fins 40 and the plate body 20 in another adjacent partition 60 is 180 degrees, that is, the fins 40 in any two adjacent partitions 60 are arranged in a symmetrical direction.
[0050] See also Figure 1 and Figure 3 In the embodiment of the present application, the fin 40 is in a flat plate shape. In other embodiments, the fin 40 may also be in a bent or arc shape.
[0051] See also Figure 1 and Figure 3 The plate body 20 has a third end face 15 and a fourth end face 16 that are arranged opposite to each other, one end of the plurality of heat exchange tubes 30 is exposed to the third end face 15 , and the other end of the plurality of heat exchange tubes 30 is exposed to the fourth end face 16 .
[0052] Exemplarily, when the plate body 20 is straight, the distance between the third end face 15 and the fourth end face 16 is the length of the plate body 20 .
[0053] See also Figure 1 and Figure 3 The heat exchanger 100 further includes a plurality of connecting pipes 50, and the number of the heat exchange tubes 30 in the heat exchange plate 110 is an odd number.
[0054] See also Figure 1 and Figure 3 In the third end face 15, the opening of the heat exchange tube 30 closest to the second end face 14 serves as the first inlet and outlet of the refrigerant in the heat exchanger 100, and the remaining even number of the heat exchange tubes 30 are divided into groups in sequence from the first end face 13 to the second end face 14, each group of heat exchange tubes 30 includes two adjacent heat exchange tubes 30, and the openings of each group of heat exchange tubes 30 exposed to the third end face 15 are connected by the connecting pipe 50.
[0055] See also Figure 1 and Figure 3In the fourth end face 16, the opening of the heat exchange tube 30 closest to the first end face 13 serves as the second inlet and outlet of the refrigerant in the heat exchanger 100, and the remaining even number of the heat exchange tubes 30 are divided into groups in sequence from the first end face 13 to the second end face 14, each group of heat exchange tubes 30 includes two adjacent heat exchange tubes 30, and the openings of each group of heat exchange tubes 30 exposed to the third end face 15 are connected by the connecting pipe 50.
[0056] Exemplarily, the connecting pipe 50 is connected to the opening of the heat exchange tube 30 by welding.
[0057] Exemplarily, the connecting pipe 50 and the heat exchange plate 110 are both made of metal, such as aluminum.
[0058] See also Figure 1 and Figure 3 The plate body 20 includes a plurality of straight portions 71 and at least one bent portion 72, wherein the bent portion 72 is used to connect two adjacent straight portions 71, and the plurality of straight portions 71 are parallel to each other.
[0059] See also Figure 1 and Figure 3 The straight portion 71 and the bent portion 72 are alternately arranged on the plate body 20 in an extending direction from the third end surface 15 to the fourth end surface 16 .
[0060] Exemplarily, the bending portion 72 is arc-shaped.
[0061] See also Figure 1 and Figure 3 The portion of each partition 60 of the plate body 20 corresponding to the straight portion 71 is provided with a fin 40 , and the portion of each partition 60 of the plate body 20 corresponding to the bent portion 72 is not provided with a fin 40 .
[0062] See also Figure 1 and Figure 3 For example, the heat exchanger 100 provided in the embodiment of the present application can be prepared by the following method:
[0063] Step 1, providing a metal material (such as aluminum), and processing the metal material into a heat exchange plate 110 by an extrusion molding process, wherein the heat exchange plate 110 includes a plate body 20 and a heat exchange tube 30, and the plate body 20 and the heat exchange tube 30 are an integrated structure;
[0064] Step 2: forming fins 40 on the surface of the plate body 20 by a scooping forming process, wherein the fins 40 and the plate body 20 are an integral structure;
[0065] Step 3: Perform a U-bend operation on the heat exchange plate 110 in a direction perpendicular to the heat exchange tube 30 to form a plurality of straight portions 71 and bent portions 72, and finally weld the connecting tube 50 to form a connected refrigerant passage to obtain the heat exchanger 100.
[0066] An embodiment of the present application further provides a refrigeration device, comprising the heat exchanger 100 in any of the above embodiments.
[0067] Exemplarily, the refrigeration device may be a refrigerator or an air conditioner.
[0068] Exemplarily, the refrigerator includes an evaporator and a condenser, and at least one of the evaporator and the condenser includes the heat exchanger 100 in any of the above embodiments.
[0069] Exemplarily, the air conditioner includes an evaporator and a condenser, and at least one of the evaporator and the condenser includes the heat exchanger 100 in any of the above embodiments.
[0070] The heat exchanger and refrigeration equipment provided in the embodiments of the present application are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present application.
Claims
1. A heat exchanger, characterized in that: It comprises a heat exchange plate, which comprises a plate body, a heat exchange tube and a fin. The plate body is connected to the heat exchange tube. The fin is located on the outer surface of the plate body and connected to the plate body. The fin and the plate body are an integrated structure.
2. The heat exchanger according to claim 1, characterized in that: The plate body and the heat exchange tube are an integrated structure.
3. The heat exchanger according to claim 1, characterized in that: The plate body has a first surface and a second surface arranged opposite to each other, and the distance between the first surface and the second surface is the thickness of the plate body; A side of the heat exchange tube close to the first surface protrudes from the first surface; and / or A side of the heat exchange tube close to the second surface protrudes from the second surface.
4. The heat exchanger according to claim 3, characterized in that The heat exchange tube is a round tube, and the diameter of the heat exchange tube is greater than the thickness of the plate body.
5. The heat exchanger according to claim 1, characterized in that: The heat exchange plate includes a plurality of heat exchange tubes, the plate body has a first end face and a second end face arranged opposite to each other, the distance between the first end face and the second end face is the width of the plate body, and the plurality of heat exchange tubes are embedded in the plate body and are arranged in sequence from the first end face to the second end face.
6. The heat exchanger according to claim 5, characterized in that The plate body is divided into a plurality of partitions by the plurality of heat exchange tubes, each partition is provided with a plurality of fins, and the plurality of fins are sequentially arranged in each partition according to the extension direction of the heat exchange tubes.
7. The heat exchanger according to claim 6, characterized in that The plate body has a third end face and a fourth end face that are arranged opposite to each other, one end of the plurality of heat exchange tubes is exposed to the third end face, and the other end of the plurality of heat exchange tubes is exposed to the fourth end face; The heat exchanger further comprises a plurality of connecting pipes, and the number of the heat exchange pipes in the heat exchange plate is an odd number; In the third end surface, the opening of the heat exchange tube closest to the second end surface serves as the first inlet and outlet of the refrigerant in the heat exchanger, and the remaining even-numbered heat exchange tubes are sequentially divided into groups in the direction from the first end surface to the second end surface, each group of heat exchange tubes includes two adjacent heat exchange tubes, and the openings of each group of heat exchange tubes exposed to the third end surface are connected by the connecting pipe; In the fourth end face, the opening of the heat exchange tube closest to the first end face serves as the second inlet and outlet of the refrigerant in the heat exchanger, and the remaining even number of heat exchange tubes are divided into groups in sequence from the first end face to the second end face, each group of heat exchange tubes includes two adjacent heat exchange tubes, and the openings of each group of heat exchange tubes exposed to the third end face are connected by the connecting pipe.
8. The heat exchanger according to claim 7, characterized in that The plate body includes a plurality of straight portions and at least one bent portion, wherein the bent portion is used to connect two adjacent straight portions, and the plurality of straight portions are parallel to each other; The straight portion and the bent portion are alternately arranged in an extension direction from the third end surface to the fourth end surface of the plate body.
9. The heat exchanger according to claim 8, characterized in that A portion corresponding to the straight portion in each partition of the plate body is provided with fins, and a portion corresponding to the bent portion in each partition of the plate body is not provided with fins.
10. A refrigeration device, characterized in that: A heat exchanger comprising any one of claims 1 to 9.