Heat exchanger and refrigeration equipment

Abstract

The utility model discloses a heat exchanger and refrigeration equipment, and relates to the technical field of refrigeration, the heat exchanger comprises a heat exchange tube and a plurality of heat exchange fins connected to the surface of the heat exchange tube, the plurality of heat exchange fins comprise a plurality of first fins and a plurality of second fins, and the plurality of first fins are arranged at intervals along a first direction; the second fins are arranged at intervals in the first direction, the second fins are arranged on one side of the first fins in the second direction, and each second fin is obliquely arranged relative to the first fin adjacent to the second fin; wherein the second direction is perpendicular to the first direction. According to the heat exchanger, each second fin is obliquely arranged relative to the first fin adjacent to the second fin, so that each second fin and the first fin adjacent to the second fin are uneven and not parallel, and the included angle is formed between the second fin and the first fin in an inclined mode, so that air is divided by the first fins and the second fins in sequence when flowing through the heat exchanger; the turbulent flow effect on airflow is enhanced, and the heat exchange efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, in particular to a heat exchanger and a refrigeration device. Background Art

[0002] Refrigerators and freezers are widely used in people's daily work and life. They are refrigeration equipment used to refrigerate / freeze food, medicines or other items that require a low-temperature storage environment. Refrigerators include heat exchangers such as condensers, which are one of the important components for realizing the refrigeration function of refrigerators. In related technologies, traditional condensers are usually provided with fins to exchange heat with the air. However, the traditional fin arrangement structure has a poor turbulence effect on the air, so that the air flowing through the condenser does not fully exchange heat with the fins, the heat exchange effect is poor, and the refrigeration efficiency is low. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a heat exchanger that can improve the heat exchange effect of the heat exchanger.

[0004] The utility model also provides a refrigeration device having the heat exchanger.

[0005] According to the first aspect of the present invention, the heat exchanger comprises a heat exchange tube and a plurality of heat exchange fins connected to the surface of the heat exchange tube, wherein the plurality of heat exchange fins comprises:

[0006] A plurality of first fins are arranged at intervals along a first direction; and

[0007] A plurality of second fins are arranged at intervals along the first direction, and the plurality of second fins are arranged along the second direction on one side of the plurality of first fins, and each second fin is inclined relative to a first fin adjacent thereto; wherein the second direction is perpendicular to the first direction.

[0008] The heat exchanger according to the embodiment of the utility model has at least the following beneficial effects:

[0009] By arranging multiple heat exchange fins into two adjacent rows along the second direction, one row is the first fins and the other row is the second fins, and by tilting each second fin relative to a first fin adjacent to it, that is, each second fin is not flush or parallel to the first fin adjacent to it, and an angle is formed between the two, so that in each group of first fins and second fins, one fin is located on the air outlet path of the other fin, so that when air flows through the heat exchanger, the air can pass through the diversion of the first fin and the second fin in turn, which can enhance the turbulence effect on the airflow, so that the airflow passing through can fully exchange heat with the heat exchange fins, thereby improving the heat exchange efficiency.

[0010] According to some embodiments of the present utility model, each of the first fins includes a first connection end connected to the heat exchange tube, and each of the second fins includes a second connection end connected to the heat exchange tube;

[0011] The first connecting ends of the first fins and the second connecting ends of the second fins are arranged one by one in alignment; or,

[0012] The first connecting ends of the first fins and the second connecting ends of the second fins are staggered along the first direction.

[0013] According to some embodiments of the present invention, each of the first fins is at a first angle relative to the surface of the heat exchange tube, and each of the second fins is inclined at a second angle relative to an adjacent first fin.

[0014] According to some embodiments of the present invention, each of the first fins is inclined in the same direction relative to the surface of the heat exchange tube, and each of the second fins is inclined in the same direction relative to the surface of the heat exchange tube.

[0015] According to some embodiments of the present invention, each of the second fins and one of the first fins adjacent thereto are inclined in opposite directions; or each of the second fins and one of the first fins adjacent thereto are inclined in the same direction;

[0016] When each of the second fins and one of the first fins adjacent thereto are inclined in opposite directions, each of the second fins forms a third angle relative to the surface of the heat exchange tube, and the third angle is equal to the first angle.

[0017] According to some embodiments of the present utility model, the heat exchange fins are integrally formed on the surface of the heat exchange tube by a scraping process.

[0018] According to some embodiments of the present utility model, the heat exchange tube includes a plurality of tube bodies, each of which extends along the first direction, and the plurality of tube bodies are arranged along a third direction, and each two adjacent tube bodies are connected end to end by a bending tube, and the third direction is perpendicular to the first direction and the second direction;

[0019] Each of the tube bodies includes a first heat exchange surface and a second heat exchange surface that are opposite to each other along the third direction. The first heat exchange surface of each of the tube bodies is arranged opposite to the second heat exchange surface of the tube body adjacent to it, and a plurality of heat exchange fins are connected to the first heat exchange surface and / or the second heat exchange surface of each of the tube bodies.

[0020] According to some embodiments of the present invention, when the two heat exchange surfaces of each tube body are connected to a plurality of heat exchange fins,

[0021] The plurality of first fins on the second heat exchange surface of each tube body are in contact with the plurality of first fins on the first heat exchange surface of the adjacent tube body; and / or,

[0022] The plurality of second fins on the second heat exchange surface of each of the tubes are in contact with the plurality of second fins on the first heat exchange surface of the adjacent tube.

[0023] According to some embodiments of the present utility model, the heat exchange tube comprises a first end and a second end which are away from each other along the first direction;

[0024] The heat exchanger also includes:

[0025] a first fixing plate, provided with a plurality of first through-holes, the plurality of first through-holes being arranged at intervals along the third direction, the first fixing plate being clamped to the first end of the heat exchange tube through the first through-holes, so that the plurality of bent tubes located at the first end are one-to-one inserted through the plurality of first through-holes; and

[0026] The second fixing plate is provided with a plurality of second perforations, and the plurality of second perforations are arranged at intervals along the third direction. The second fixing plate is clamped to the second end of the heat exchange tube through the second perforations, so that the plurality of bent tubes located at the second end are one-to-one penetrated through the plurality of second perforations.

[0027] The refrigeration device according to the second embodiment of the utility model comprises the heat exchanger described in any one of the above embodiments.

[0028] The refrigeration device according to the embodiment of the utility model has at least the following beneficial effects:

[0029] A heat exchanger using the first aspect of the embodiment is configured such that a plurality of heat exchange fins are arranged into two adjacent rows along a second direction, wherein one row is a first fin and the other row is a second fin, and each second fin is arranged at an angle relative to a first fin adjacent thereto, that is, each second fin is not flush or parallel to the first fin adjacent thereto, and an angle is formed between the two, so that in each group of first fins and second fins, one fin is located on the air outlet path of the other fin, so that when air flows through the heat exchanger, the air can pass through the diversion of the first fin and the second fin in turn, which can enhance the turbulence effect on the airflow, so that the airflow passing therethrough can fully exchange heat with the heat exchange fins, thereby improving the heat exchange efficiency and further improving the cooling effect of the refrigeration equipment.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0032] Figure 1 It is a partial structural schematic diagram of the first embodiment of the heat exchanger of the utility model from a front view;

[0033] Figure 2 for Figure 1 A schematic diagram of a portion of the structure of the heat exchanger from a top view;

[0034] Figure 3 It is a partial structural schematic diagram of the second embodiment of the heat exchanger of the utility model;

[0035] Figure 4 It is a partial structural schematic diagram of the third embodiment of the heat exchanger of the utility model;

[0036] Figure 5 It is a partial structural schematic diagram of a fourth embodiment of a heat exchanger of the utility model;

[0037] Figure 6 It is a partial structural schematic diagram of the fifth embodiment of the heat exchanger of the utility model;

[0038] Figure 7 It is a partial structural schematic diagram of a sixth embodiment of a heat exchanger of the utility model;

[0039] Figure 8 It is a complete structural schematic diagram of the fourth embodiment of the heat exchanger of the utility model;

[0040] Fig. 9 It is a partial structural schematic diagram of the heat exchange tube of the utility model before being bent;

[0041] Fig.10 It is a schematic structural diagram of two embodiments of the first fixing plate of the utility model;

[0042] Fig.11 Schematic diagram of the structure of two embodiments of the second fixing plate of the utility model.

[0043] Figure Number:

[0044] Heat exchanger 10;

[0045] Heat exchange tube 100; tube body 110; first heat exchange surface 111; second heat exchange surface 112; bent tube 120;

[0046] Air inlet side 101; air outlet side 102; processing section 100a; bending section 100b;

[0047] Heat exchange fin 200; first fin 210; first connecting end 211; second fin 220; second connecting end 221;

[0048] First fixing plate 300; first through hole 310; second fixing plate 400; second through hole 320;

[0049] Input pipe 500; output pipe 600. DETAILED DESCRIPTION

[0050] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0051] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0052] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0053] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0054] The present application provides a heat exchanger.

[0055] Specifically, a heat exchanger is also called a heat exchanger. It is a device used to transfer heat from a hot fluid to a cold fluid, and can increase or decrease the temperature of the surrounding medium. Among them, the heat exchanger can be a condenser or an evaporator. The following will take the condenser as an example to explain the heat exchanger in detail.

[0056] Please refer to Figure 1 , Figure 1The heat exchanger 10 includes a heat exchange tube 100 and a heat exchange fin 200 , and the heat exchange fin 200 is connected to the surface of the heat exchange tube 100 .

[0057] The heat exchange tube 100 is hollow inside, and a refrigerant channel for the refrigerant to flow is formed inside the heat exchange tube 100. When the heat exchanger 10 is used as a condenser of a refrigerator, the refrigerant can dissipate heat and cool inside the heat exchange tube 100 when flowing through the heat exchange tube 100, and dissipate heat to the surrounding air through the heat exchange tube 100, so that the temperature of the refrigerant is reduced.

[0058] It can be understood that a plurality of heat exchange fins 200 are provided. One end of each heat exchange fin 200 is connected to the heat exchange tube 100, and the other end can extend in a direction away from the surface of the heat exchange tube 100. When the refrigerant medium flows through the heat exchange tube 100, the heat transferred from the refrigerant medium to the heat exchange tube 100 can continue to be transferred to the heat exchange fins 200, thereby increasing the heat dissipation area. In addition, the heat can be transferred to the air far away from the surface of the heat exchange tube 100 through the heat exchange fins 200, thereby improving the heat exchange performance.

[0059] Please combine Figure 1 And refer to Figure 2 , Figure 2 for Figure 1 In the embodiment of the present application, the heat exchange fin 200 includes a plurality of first fins 210 and a plurality of second fins 220 .

[0060] A plurality of first fins 210 are arranged at intervals along a first direction, a plurality of second fins 220 are also arranged at intervals along the first direction, and a plurality of second fins 220 are arranged on one side of the plurality of first fins 210 along a second direction, and each second fin 220 is inclined relative to a first fin 210 adjacent thereto; wherein the second direction is perpendicular to the first direction.

[0061] The first direction may be the length direction (extension direction) of the heat exchange tube, and the second direction may be the width direction of the heat exchange tube.

[0062] In the embodiment of the present application, a plurality of heat exchange fins 200 are arranged in two adjacent rows along the second direction, one of which is a first fin 210 and the other is a second fin 220. Each second fin 220 is arranged obliquely relative to a first fin 210 adjacent thereto, that is, each second fin 220 is not flush or parallel to the first fin 210 adjacent thereto, and an angle is formed between the two, so that in each group of first fins 210 and second fins 220, one fin is located on the air outlet path of the other fin, so that when air flows through the heat exchanger 10, the air can pass through the diversion of the first fin 210 and the second fin 220 in turn, which can enhance the turbulence effect on the airflow, so that the airflow passing through can fully exchange heat with the heat exchange fin 200, thereby improving the heat exchange efficiency. Furthermore, when the heat exchanger 10 is applied to a refrigeration device, the refrigeration effect of the refrigeration device can be improved.

[0063] In one embodiment, the heat exchange tube 100 is processed by a flat tube, and the cross-sectional shape of each part of the heat exchange tube 100 is a rectangle or a rounded rectangle.

[0064] Then, the heat exchange tube 100 adopts a flat tube design, so that two surfaces of the heat exchange tube 100 have sufficient width, and sufficient area can be reserved for arranging multiple first fins 210 and multiple second fins 220. Moreover, the use of flat tubes can make the heat exchange tube 100 have a larger surface area, thereby increasing the contact area between the heat exchange tube 100 and the air, so that the air and the heat exchange tube 100 can fully exchange heat, and improve the heat dissipation effect.

[0065] like Figure 2 As shown, the heat exchanger 10 includes an air inlet side 101 and an air outlet side 102 that are opposite to each other along the second direction. A plurality of first fins 210 can be arranged at one end of the heat exchange tube 100 close to the air inlet side 101, and a plurality of second fins 220 can be arranged at one end of the heat exchange tube 100 close to the air outlet side 102. Alternatively, a plurality of first fins 210 can be arranged at one end of the heat exchange tube 100 close to the air outlet side 102, and a plurality of second fins 220 can be arranged at one end of the heat exchange tube 100 close to the air inlet side 101. The following will take the former as an example for explanation, that is, the first fin 210 is close to the air inlet side 101 of the heat exchanger 10, and the air flowing through the heat exchanger 10 will first pass through the first fin 210 and then pass through the second fin 220.

[0066] In one embodiment, each first fin 210 is disposed at a first angle α relative to the surface of the heat exchange tube 100 , and each second fin 220 is inclined at a second angle β relative to a first fin 210 adjacent thereto.

[0067] That is to say, each first fin 210 forms the same angle relative to the surface of the heat exchange tube 100, and each second fin 220 has the same inclination angle relative to the surface of the first fin 210, so each second fin 220 also forms the same angle relative to the surface of the heat exchange tube 100.

[0068] Then, by setting the angle of each first fin 210 relative to the surface of the heat exchange tube 100 to be the same, the length of each first fin 210 can be designed to be the same, so that each first fin 210 can have the same thermal conductivity and can achieve uniform heat dissipation; similarly, by setting the angle of each second fin 220 relative to the surface of the heat exchange tube 100 to be the same, the length of each second fin 220 can be designed to be the same, so that each second fin 220 can have the same thermal conductivity and can also achieve uniform heat dissipation, thereby improving the heat dissipation effect.

[0069] It can be understood that each first fin 210 can be tilted relative to the surface of the heat exchange tube 100, that is, the first angle α is less than 90°, or each first fin 210 can be vertically arranged relative to the surface of the heat exchange tube 100, that is, the first angle α=90°. In one embodiment, each first fin 210 is tilted relative to the surface of the heat exchange tube 100, with the plane perpendicular to the surface of the heat exchange tube 100 as the reference plane, and the direction away from the surface of the heat exchange tube 100 is defined as the upper direction. The first fin 210 can be tilted toward the left direction of the reference plane, or the first fin 210 can be tilted toward the right direction of the reference plane. In other words, the first fin 210 can be tilted in a clockwise direction relative to the surface of the heat exchange tube 100, or the first fin 210 can be tilted in a counterclockwise direction relative to the surface of the heat exchange tube 100.

[0070] Similarly, each second fin 220 may be arranged obliquely relative to the surface of the heat exchange tube 100, that is, the angle formed by the two is less than 90°, or each second fin 220 may be arranged perpendicularly relative to the surface of the heat exchange tube 100, that is, the angle formed by the two is equal to 90°. In one embodiment, when each second fin 220 is arranged obliquely relative to the surface of the heat exchange tube 100, the second fin 220 may be inclined in a clockwise direction relative to the surface of the heat exchange tube 100, or the second fin 220 may be inclined in a counterclockwise direction relative to the surface of the heat exchange tube 100.

[0071] In one embodiment, each of the first fins 210 is inclined in the same direction relative to the surface of the heat exchange tube 100 , and each of the second fins 220 is inclined in the same direction relative to the surface of the heat exchange tube 100 .

[0072] Then, by setting the inclination angle of each first fin 210 relative to the surface of the heat exchange tube 100 to be the same, setting each first fin 210 to be inclined in the same direction relative to the surface of the heat exchange tube 100, and by setting the inclination angle of each second fin 220 relative to the surface of the heat exchange tube 100 to be the same, and setting each second fin 220 to be inclined in the same direction relative to the surface of the heat exchange tube 100, the shape and size of the gap between each two adjacent first fins 210 are the same, and the shape and size of the gap between each two adjacent second fins 220 are also the same. When air flows through the heat exchange fins 200 for heat exchange, the air flow between each two first fins 210 and between each two second fins 220 is the same, so that each heat exchange fin 200 can perform uniform heat exchange with the air. When the heat exchanger 10 is used as a condenser, it is easier to achieve uniform heat dissipation and avoid excessive local temperature of the heat exchanger 10. Moreover, since the shape and size of the gap between each two adjacent first fins 210 and each two adjacent second fins 220 are the same, the air can flow through the first fins 210 and the second fins 220 relatively smoothly and smoothly. Compared with the random arrangement of the fins, the airflow turbulence can be avoided to affect the flow rate of the heat exchange airflow.

[0073] Moreover, by setting the inclination angles and directions of the first fins 210 and the second fins 220 as described above, the processing or assembly of the heat exchange fins 200 can also be facilitated.

[0074] For example, when the heat exchange fin 200 is connected and fixed to the surface of the heat exchange tube 100 by welding, through the above-mentioned setting, the length of each first fin 210 is the same, and the length of each second fin 220 is the same. The first fin 210 and the second fin 220 can be batch-processed and produced by the same processing step, thereby improving the production efficiency of the heat exchange fin 200. Moreover, during the welding process, the same set of welding jigs / clamps can be used to weld the first fin 210, so that each first fin 210 is inclined at the same angle relative to the surface of the heat exchange tube 100. Similarly, the same set of welding jigs / clamps can be used to weld the second fin 220, so that each second fin 220 is inclined at the same angle relative to the surface of the heat exchange tube 100. There is no need to set up multiple welding jigs / clamps, and there is no need to adjust the welding jigs / clamps, which can improve the connection and assembly efficiency of the heat exchange fin 200.

[0075] In one embodiment, the heat exchange fins 200 are integrally formed on the surface of the heat exchange tube 100 by a shoveling process.

[0076] The heat exchange fins 200 are formed by a skiving process, that is, the heat exchange fins 200 are skiving fins, so that the heat exchange fins 200 and the heat exchange tubes 100 are formed into an integrated structure, which eliminates a large number of connection and assembly processes between the heat exchange fins 200 and the heat exchange tubes 100, and can significantly improve the production efficiency of the heat exchanger 10. Especially in mass production, the heat exchange tubes 100 can be batch-cut by skiving equipment such as a skiving lathe, which can not only improve efficiency but also reduce labor costs.

[0077] More importantly, since the heat exchange fin 200 itself is a structure cut out from the heat exchange tube 100 by a tooth-cutting process, there is almost no thermal resistance between the two, and there is no assembly gap between the heat exchange fin 200 and the heat exchange tube 100, the heat dissipated from the refrigerant medium to the heat exchange tube 100 can be quickly and fully transferred to the heat exchange fin 200, so that the temperature difference between the heat exchange tube 100 and the heat exchange fin 200 is very small, which can improve the heat dissipation effect.

[0078] Specifically, since the first fin 210 and the second fin 220 are inclined to form an angle, the first fin 210 and the second fin 220 have different corresponding shoveling angles, and the shoveling lathe can process the first fin 210 and the second fin 220 successively, for example, after all the first fins 210 are shoveled out at the first shoveling angle, the second fin 220 is shoveled out at the second shoveling angle. Of course, the shoveling lathe can also process the first fin 210 and the second fin 220 at the same time, for example, the shoveling lathe can include two side-by-side shovel blades, and by setting the two shovel blades to shovel at different shoveling angles, the first fin 210 and the second fin 220 can be shoveled out at the same time.

[0079] It can be understood that when the heat exchange fin 200 is integrally formed by the scraping process, by setting the inclination angle and inclination direction of each first fin 210 relative to the surface of the heat exchange tube 100 to be the same, then, when the scraper cuts the first fin 210, the scraping angle of the scraper to each first fin 210 is the same, and there is no need to adjust the scraping angle of the scraper (i.e., the above-mentioned first scraping angle); similarly, by setting the inclination angle and inclination direction of each second fin 220 relative to the surface of the heat exchange tube 100 to be the same, when the scraper cuts the first fin 210, the scraping angle of the scraper to each second fin 220 is the same, and there is no need to adjust the scraping angle of the scraper (i.e., the above-mentioned second scraping angle), which can facilitate the scraping process of the heat exchange tube 100 by the scraping lathe, thereby improving the scraping efficiency of the heat exchange fin 200.

[0080] like Figure 2 As shown, each first fin 210 includes a first connection end 211 connected to the heat exchange tube 100 , and each second fin 220 includes a second connection end 221 connected to the heat exchange tube 100 .

[0081] In one embodiment, please refer to Figure 3 , Figure 3 The schematic diagram of the partial structure of the second embodiment of the heat exchanger of the utility model is as follows: the first connecting ends 211 of the first fins 210 and the second connecting ends 221 of the second fins 220 are staggered along the first direction.

[0082] That is to say, if the first connecting end 211 of the first fin 210 and the second connecting end 221 of the second fin 220 are not aligned, the plane where the first fin 210 is located and the plane where the second fin 220 adjacent to it is located may intersect, that is, the air guide surface formed by the first fin 210 intersects with the air guide surface formed by the second fin 220. Then, when the air first flows through the first fin 210 and flows to the second fin 220 in the direction guided by the first fin 210, since the air guide surfaces formed by the two intersect, the second fin 220 can cut the airflow originally blown out from one side of the first fin 210 and flow through it from both sides of the second fin 220, and the airflow blown out from the other side of the first fin 210 can also be cut and flow through it from both sides of the second fin 220, which can further enhance the turbulence effect on the airflow passing through, thereby improving the heat exchange effect.

[0083] In another embodiment, please combine Figure 1 And refer to Figure 4 , Figure 4 The schematic diagram of the partial structure of the third embodiment of the heat exchanger of the utility model shows that the first connecting ends 211 of the first fins 210 and the second connecting ends 221 of the second fins 220 are arranged in alignment.

[0084] That is, the connection positions of the plurality of first fins 210 on the surface of the heat exchange tube 100 are aligned one by one with the connection positions of the plurality of second fins 220 on the surface of the heat exchange tube 100, which makes it easy to ensure the processing accuracy of the heat exchange fins 200.

[0085] It can be understood that when the first connecting ends 211 of the first fins 210 and the second connecting ends 221 of the second fins 220 are aligned one by one, by reasonably designing the spacing between the first fins 210 and the second fins 220, for example, when the spacing between two adjacent first fins 210 is small, such as Figure 4 As shown, it can be achieved that in every two adjacent first fins 210, the plane where the second fin 220 aligned and connected with one of the first fins 210 is located will intersect with the plane where the other first fin 210 is located, and the turbulence effect on the airflow passing through can also be enhanced.

[0086] In one embodiment, each second fin 220 and a first fin 210 adjacent thereto are inclined in opposite directions.

[0087] Specifically, when each first fin 210 is inclined in the clockwise direction, each second fin 220 may be inclined in the counterclockwise direction. Alternatively, when each first fin 210 is inclined in the counterclockwise direction, each second fin 220 may be inclined in the clockwise direction. The embodiment of the present application does not limit this.

[0088] For example, refer again to Figure 3 When the multiple first connecting ends 211 of the multiple first fins 210 and the multiple second connecting ends 221 of the multiple second fins 220 are staggered along the first direction, each second fin 220 and a first fin 210 adjacent thereto are arranged to be inclined in opposite directions. At this time, each second fin 220 and a first fin 210 adjacent thereto are in an "X" shape as a whole.

[0089] For another example, please refer again Figure 1 When the multiple first connecting ends 211 of the multiple first fins 210 are aligned one by one with the multiple second connecting ends 221 of the multiple second fins 220, each second fin 220 and a first fin 210 adjacent thereto are arranged to be inclined in opposite directions. At this time, each second fin 220 and a first fin 210 adjacent thereto are in a "V" shape as a whole.

[0090] Then, by setting the inclination direction of each second fin 220 to be opposite to the inclination direction of the first fin 210 adjacent thereto, that is, the inclination direction of each second fin 220 is opposite to the inclination direction of each first fin 210, the second fin 220 is located on the airflow path guided by the first fin 210, which has a better turbulence effect on the airflow and can further improve the heat exchange effect.

[0091] Please continue to refer to Figure 1 Each second fin 220 is inclined at a third angle θ relative to the surface of the heat exchange tube 100 , and the third angle θ is equal to the first angle α.

[0092] It can be understood that since each second fin 220 is inclined relative to the adjacent first fin 210 and a second angle β is formed therebetween, in order to achieve the third angle θ being equal to the first angle α, each second fin 220 and an adjacent first fin 210 are required to be inclined in opposite directions.

[0093] By setting the third angle θ to be equal to the first angle α, that is, the inclination angle of the first fin 210 relative to the surface of the heat exchange tube 100 is the same as the inclination angle of the second fin 220 relative to the surface of the heat exchange tube 100, then the length of the first fin 210 and the length of the second fin 220 can be designed to be the same, so that the distance from the free end of the first fin 210 to the surface of the heat exchange tube 100 is the same as the distance from the free end of the second fin 220 to the surface of the heat exchange tube 100, thereby avoiding the height difference between the free end of the first fin 210 and the free end of the second fin 220, which causes part of the air to be directly blown out from the gap caused by the height difference between the two. In other words, it can be avoided that part of the air is directly blown out without passing through the heat exchange fin 200 for heat exchange, thereby improving the heat exchange efficiency.

[0094] Of course, in another optional implementation, please refer to Figure 5 , Figure 5 This is a partial structural diagram of the fourth embodiment of the heat exchanger of the utility model. Each second fin 220 can also be arranged to be inclined in the same direction as a first fin 210 adjacent thereto.

[0095] Please refer to Figure 6 and Figure 7 , Figure 6 This is a partial structural diagram of the fifth embodiment of the heat exchanger of the utility model. Figure 7 This is a partial structural diagram of the sixth embodiment of the heat exchanger of the utility model. In one embodiment, each first fin 210 is vertically arranged relative to the surface of the heat exchange tube 100, that is, the angle between each first fin 210 and the surface of the heat exchange tube 100 is 90°, and each second fin 220 is inclined at a second angle β relative to a first fin 210 adjacent thereto.

[0096] When each first fin 210 is arranged perpendicular to the surface of the heat exchange tube 100, the first connecting ends 211 of the first fins 210 and the second connecting ends 221 of the second fins 220 may be arranged one by one in alignment or may be staggered along the first direction.

[0097] In this embodiment, when the first connection ends 211 of the first fins 210 and the second connection ends 221 of the second fins 220 are aligned one by one, as shown in FIG. Figure 6 As shown, it is equivalent to that a second fin 220 is obliquely arranged between every two adjacent first fins 210. When air flows through the heat exchange fin 200, the airflow flowing through the middle of the gap between the two adjacent first fins 210 (the air in the middle of the gap is at a certain distance from the first fin 210, and the heat exchange with the first fin 210 is weak) can fully exchange heat with the second fin 220, thereby improving the heat exchange effect.

[0098] In this embodiment, when the first connecting ends 211 of the first fins 210 and the second connecting ends 221 of the second fins 220 are staggered along the first direction, Figure 7 As shown, it is equivalent to that two second fins 220 are obliquely arranged between every two first fins 210. When air flows through the heat exchange fins 200, similarly, the airflow flowing through the middle of the gap between two adjacent first fins 210 can fully exchange heat with the second fins 220, and can also improve the heat exchange effect.

[0099] Please refer to Figure 8 , Figure 8 The heat exchange tube 100 includes a plurality of tube bodies 110, each of which extends along a first direction, and the plurality of tube bodies 110 are arranged along a third direction, and each two adjacent tube bodies 110 are connected end to end by a bending tube 120, and the third direction is perpendicular to the first direction and the second direction.

[0100] Among them, multiple tube bodies 110 are arranged along the third direction, and the third direction is the height direction of the heat exchange tube 100. Multiple tube bodies 110 are bent end to end along the height direction of the heat exchange tube 100 to form a serpentine shape, so that the heat exchange tube 100 has a sufficiently long length, so that the refrigerant medium can fully dissipate heat in the heat exchange tube 100, and the temperature of the refrigerant medium can be reduced to the temperature required for refrigeration.

[0101] Each tube body 110 may include two heat exchange surfaces that are separated from each other along the third direction, and a plurality of heat exchange fins 200 are connected to at least one heat exchange surface of each tube body 110 .

[0102] like Figure 8 As shown, each tube body 110 includes a first heat exchange surface 111 and a second heat exchange surface 112 that are opposite to each other along a third direction, and the first heat exchange surface 111 of each tube body 110 is arranged opposite to the second heat exchange surface 112 of the adjacent tube body 110. A plurality of heat exchange fins 200 may be arranged only on the first heat exchange surface 111 of each tube body 110; or, a plurality of heat exchange fins 200 may also be arranged only on the second heat exchange surface 112 of each tube body 110; or, a plurality of heat exchange fins 200 may be arranged on both the first heat exchange surface 111 and the second heat exchange surface 112 of each tube body 110.

[0103] In one embodiment, in order to improve the heat exchange effect, the first heat exchange surface 111 and the second heat exchange surface 112 of each tube body 110 are connected to a plurality of heat exchange fins 200 .

[0104] To reduce the thermal resistance between the tube body 110 and the bent tube 120 , the heat exchange tube 100 can be formed by integral bending. It is understandable that, to facilitate the bending of the heat exchange tube 100 , no heat exchange fins 200 are provided on each bent tube 120 of the heat exchange tube 100 .

[0105] Specifically, during the production process, the heat exchange fins 200 can be processed on the surface of the raw material tube first, and then the raw material tube is bent multiple times to form the overall shape of the heat exchange tube 100. Fig. 9 , Fig. 9 The schematic diagram of the partial structure of the heat exchange tube before bending of the utility model is shown in FIG. Specifically, the raw material tube is divided into processing sections 100a and bending sections 100b according to the design size in advance, and a bending section 100b is arranged between every two processing sections 100a. The required heat exchange fins 200 are first cut out on each processing section 100a by a tooth-cutting lathe through a tooth-cutting process. After the tooth-cutting process of all processing sections 100a is completed, each bending section 100b is bent by a bending machine. After all bending sections 100b are bent, the overall shape of the heat exchange tube 100 is finally formed.

[0106] In order to further improve the heat exchange effect, in one embodiment, Figure 8 As shown, the plurality of first fins 210 on the second heat exchange surface 112 of each tube body 110 and the plurality of first fins 210 on the first heat exchange surface 111 of the adjacent tube body 110 are in contact with each other.

[0107] It should be understood that “mutual contact” here means that the free end of the first fin 210 of each tube body 110 (the end away from the heat exchange surface) is in contact with the free end of the first fin 210 of another adjacent tube body 110 (the end away from the heat exchange surface).

[0108] Through the above arrangement, in each of two adjacent tube bodies 110, the first fin 210 of one tube body 110 close to the side of the other tube body 110 and the first fin 210 of the other tube body 110 close to the side of the tube body 110 are in contact with each other, so that the gap between any two adjacent first fins 210 on one tube body 110 is connected and closed with the gap between the two adjacent first fins 210 corresponding to the position on the other adjacent tube body 110, which can avoid the problem of return air short circuit, thereby improving the heat exchange effect. It should be noted that "return air short circuit" means that without any treatment, due to the existence of a gap between the heat exchange fins 200 between two adjacent tube bodies 110, there will be air blowing directly through the gap between the heat exchange fins 200 between two adjacent tube bodies 110 without heat exchange through the heat exchange fins 200.

[0109] In one embodiment, the plurality of second fins 220 on the second heat exchange surface 112 of each tube body 110 and the plurality of second fins 220 on the first heat exchange surface 111 of the adjacent tube body 110 are in contact with each other.

[0110] It should be understood that “mutual contact” here means that the free end of the second fin 220 of each tube body 110 (the end away from the heat exchange surface) is in contact with the free end of the second fin 220 of another adjacent tube body 110 (the end away from the heat exchange surface).

[0111] Similarly, through the above arrangement, in every two adjacent tube bodies 110, the second fin 220 of one tube body 110 close to the other tube body 110 and the second fin 220 of the other tube body 110 close to the tube body 110 are in contact with each other, which can also avoid the return air short circuit problem and further improve the heat exchange effect.

[0112] In order to facilitate the installation of the heat exchange tube 100 on the refrigeration equipment, a mounting structure may be further provided on the heat exchanger 10. For example, a fixing plate may be connected to the heat exchange tube 100 to connect and fix the heat exchange tube 100 to the refrigeration equipment through the fixing plate.

[0113] Please refer to Figure 8 In one embodiment, the heat exchange tube 100 includes a first end and a second end 104 that are separated from each other along a first direction. The heat exchanger 10 also includes a first fixing plate 300 and a second fixing plate 400 .

[0114] Please combine Figure 8 And refer to Fig.10 , Fig.10 The first fixing plate 300 is provided with a plurality of first through-holes 310, and the plurality of first through-holes 310 are arranged at intervals along the third direction. The first fixing plate 300 is clamped to the first end of the heat exchange tube 100 through the first through-holes 310, so that the plurality of bent tubes 120 located at the first end are one-to-one penetrated through the plurality of first through-holes 310.

[0115] Among them, the first through hole 310 can be set in the middle of the first fixing plate 300, and the first fixing plate 300 needs to be clamped and assembled on the heat exchange tube 100 along the extension direction of the tube body 110; the first through hole 310 can also extend from the middle of the first fixing plate 300 to one side edge of the first fixing plate 300 and pass through the side edge, so that the first fixing plate 300 is arched as a whole, so that the first fixing plate 300 can not only be clamped and assembled on the heat exchange tube 100 along the extension direction of the tube body 110, but also can be clamped on the heat exchange tube 100 along the extension direction perpendicular to the tube body 110.

[0116] Please combine Figure 8 And refer to Fig.11, Fig.11 The second fixing plate 400 is provided with a plurality of second through-holes 320, and the plurality of second through-holes 320 are arranged at intervals along the third direction. The second fixing plate 400 is clamped to the second end of the heat exchange tube 100 through the second through-holes 320, so that the plurality of bent tubes 120 located at the second end are one-to-one penetrated through the plurality of second through-holes 320.

[0117] Similarly, the second through hole 320 can be set in the middle of the second fixing plate 400, and the second fixing plate 400 needs to be clamped and assembled on the heat exchange tube 100 along the extension direction of the tube body 110; the second through hole 320 can also extend from the middle of the second fixing plate 400 to one side edge of the second fixing plate 400 and pass through the side edge, so that the second fixing plate 400 is arched as a whole, so that the second fixing plate 400 can not only be clamped and assembled on the heat exchange tube 100 along the extension direction of the tube body 110, but also can be clamped on the heat exchange tube 100 along the extension direction perpendicular to the tube body 110.

[0118] Please refer again Figure 8 The heat exchanger 10 further includes an input pipe 500 and an output pipe 600 , and the input pipe 500 and the output pipe 600 are respectively connected to two ports of the heat exchange tube 100 .

[0119] It can be understood that the input pipe 500 is used as an input carrier connected to the heat exchange tube 100, and is used to input the cold medium into the heat exchange tube 100. When the heat exchanger 10 is a condenser, the input pipe 500 can be connected to the compressor of the refrigeration system of the refrigeration equipment. The output pipe 600 is used as an output carrier connected to the heat exchange tube 100, and is used to output the cold medium from the heat exchange tube 100. When the heat exchanger 10 is a condenser, the output pipe 600 can be connected to a throttling element of the refrigeration system of the refrigeration equipment, such as a capillary tube.

[0120] The present application also provides a refrigeration device. Specifically, the refrigeration device provided in the present application may be a refrigerator / freezer, an air conditioner, or the like. The refrigeration device includes a refrigeration system, and the refrigeration system may include a heat exchanger 10 conceived according to any of the above embodiments.

[0121] The refrigeration equipment provided by the embodiment of the utility model adopts the heat exchanger conceived in any of the above embodiments, and arranges a plurality of heat exchange fins into two adjacent rows along the second direction, one row of which is the first fin and the other row is the second fin, and each second fin is tilted relative to a first fin adjacent to it, that is, each second fin is not flush or parallel to the first fin adjacent to it, and an angle is formed between the two, so that in each group of first fins and second fins, one fin is located on the air outlet path of the other fin, so that when air flows through the heat exchanger, the air can pass through the diversion of the first fin and the second fin in turn, which can enhance the turbulence effect on the airflow, so that the airflow passing through can fully exchange heat with the heat exchange fins, thereby improving the heat exchange efficiency and further improving the refrigeration effect of the refrigeration equipment.

[0122] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A heat exchanger, characterized in that: It comprises a heat exchange tube and a plurality of heat exchange fins connected to the surface of the heat exchange tube, wherein the plurality of heat exchange fins comprises: A plurality of first fins are arranged at intervals along a first direction; and A plurality of second fins are arranged at intervals along the first direction, and the plurality of second fins are arranged along the second direction on one side of the plurality of first fins, and each second fin is inclined relative to a first fin adjacent thereto; wherein the second direction is perpendicular to the first direction.

2. The heat exchanger according to claim 1, characterized in that: Each of the first fins includes a first connection end connected to the heat exchange tube, and each of the second fins includes a second connection end connected to the heat exchange tube; The first connecting ends of the first fins and the second connecting ends of the second fins are arranged one by one in alignment; or, The first connecting ends of the first fins and the second connecting ends of the second fins are staggered along the first direction.

3. The heat exchanger according to claim 2, characterized in that: Each of the first fins is at a first angle relative to the surface of the heat exchange tube, and each of the second fins is inclined at a second angle relative to a first fin adjacent thereto.

4. The heat exchanger according to claim 3, characterized in that: Each of the first fins is inclined in the same direction relative to the surface of the heat exchange tube, and each of the second fins is inclined in the same direction relative to the surface of the heat exchange tube.

5. The heat exchanger according to claim 4, characterized in that: Each of the second fins and one of the first fins adjacent thereto are inclined in opposite directions; or each of the second fins and one of the first fins adjacent thereto are inclined in the same direction; When each of the second fins and one of the first fins adjacent thereto are inclined in opposite directions, each of the second fins forms a third angle relative to the surface of the heat exchange tube, and the third angle is equal to the first angle.

6. The heat exchanger according to any one of claims 1 to 5, characterized in that: The heat exchange fins are integrally formed on the surface of the heat exchange tube by a scraping process.

7. The heat exchanger according to any one of claims 1 to 5, characterized in that: The heat exchange tube comprises a plurality of tube bodies, each of which extends along the first direction, and the plurality of tube bodies are arranged along a third direction, and each two adjacent tube bodies are connected end to end by a bending tube, and the third direction is perpendicular to the first direction and the second direction; Each of the tube bodies includes a first heat exchange surface and a second heat exchange surface that are opposite to each other along the third direction. The first heat exchange surface of each of the tube bodies is arranged opposite to the second heat exchange surface of the tube body adjacent to it, and a plurality of heat exchange fins are connected to the first heat exchange surface and / or the second heat exchange surface of each of the tube bodies.

8. The heat exchanger according to claim 7, characterized in that When the two heat exchange surfaces of each tube body are connected with a plurality of heat exchange fins, The plurality of first fins on the second heat exchange surface of each of the tubes are in contact with the plurality of first fins on the first heat exchange surface of the adjacent tubes; and / or, The plurality of second fins on the second heat exchange surface of each of the tubes are in contact with the plurality of second fins on the first heat exchange surface of the adjacent tube.

9. The heat exchanger according to claim 7, characterized in that: The heat exchange tube comprises a first end and a second end which are away from each other along the first direction; The heat exchanger also includes: a first fixing plate, provided with a plurality of first through-holes, the plurality of first through-holes being arranged at intervals along the third direction, the first fixing plate being clamped to the first end of the heat exchange tube through the first through-holes, so that the plurality of bent tubes located at the first end are one-to-one inserted through the plurality of first through-holes; and The second fixing plate is provided with a plurality of second perforations, and the plurality of second perforations are arranged at intervals along the third direction. The second fixing plate is clamped to the second end of the heat exchange tube through the second perforations, so that the plurality of bent tubes located at the second end are one-to-one penetrated through the plurality of second perforations.

10. Refrigeration equipment, characterized in that: Comprising a heat exchanger according to any one of claims 1 to 9.

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