Windowing aluminum fin for heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and provides a windowing aluminum fin for a heat exchanger, which comprises a fin body, a plurality of mounting pipes are arranged on the fin body and used for mounting heat exchange pipes, a plurality of shutter-shaped radiating units are arranged on the fin body, and the mounting pipes are used for mounting heat exchange pipes. Each heat dissipation unit is internally provided with a plurality of heat dissipation fins which are arranged at equal intervals, and a heat dissipation channel is formed between every two adjacent heat dissipation fins. The heat dissipation device overcomes the defects in the prior art, is reasonable in design and compact in structure, can form vortexes while destroying an airflow boundary layer in a heat dissipation channel through the multiple multi-angle triangular fins, effectively prolongs airflow contact time, destroys the airflow boundary layer, and remarkably improves heat conduction efficiency. The front-narrow and rear-wide diversion trenches can directionally guide and decelerate airflow to the rear radiating fins, so that heat exchange is enhanced. The fins can be conveniently stacked and positioned through the structures of the outer turned edges and the containing grooves, the baffles in the connecting cavities are matched with the protruding blocks, it is ensured that the fins are tightly connected, and the heat conduction performance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field, concretely relates to a heat exchanger is with windowed aluminium fin. BACKGROUND

[0002] The heat exchanger is as the key equipment of heat energy transmission, and it is mainly composed of fin and heat exchange pipe, wherein the main function of fin is to increase radiation heat transfer and convection heat transfer, thereby improving the efficiency of heat transfer, and the existing heat exchanger fin is difficult to effectively destroy fluid boundary layer, and laminar flow is dominant, which leads to low heat transfer coefficient, and the heat exchange efficiency is general, therefore, we propose a heat exchanger is with windowed aluminium fin. CONTENT OF UTILITY MODEL

[0003] (I) the technical problem solved

[0004] In view of the deficiencies of prior art, the utility model provides a heat exchanger is with windowed aluminium fin to solve the above problems existing in prior art.

[0005] (II) technical scheme

[0006] In order to realize the above object, the utility model is realized through the following technical scheme: a heat exchanger is with windowed aluminium fin, including fin body, be equipped with a plurality of installation pipe for installing heat exchange pipe on the fin body, be equipped with a plurality of louvers-shaped heat dissipation units on the fin body, a plurality of equidistantly arranged heat dissipation ribs are arranged in each heat dissipation unit, and heat dissipation channels are formed between adjacent heat dissipation ribs, the bottom of the heat dissipation rib is equipped with a plurality of triangular fins extending into the heat dissipation channel, and the inclination angles of a plurality of the triangular fins are different, to form vortex in the heat dissipation channel.

[0007] Further, the heat dissipation unit is provided with a flow guide groove above the upper surface of the fin body to direct the airflow to the rear heat dissipation rib, the flow guide groove penetrates the top of the front heat dissipation rib in the heat dissipation unit, and does not penetrate the last heat dissipation rib.

[0008] Further, the inside width of the flow guide groove is narrow in front and wide in back.

[0009] Further, the top of the installation pipe is provided with an outwardly turned outer turning edge, and the bottom of the installation pipe is provided with a containing groove capable of accommodating the outer turning edge.

[0010] Further, an outwardly expanded connecting cavity is arranged between the containing groove and the inner cavity of the installation pipe, a plurality of baffle plates inclined towards the center of the installation pipe are arranged in the connecting cavity, the side of the bottom of the baffle plate away from the center of the installation pipe is provided with a protruding block, and a ring-shaped limiting groove for cooperating with the protruding block is arranged in the inner cavity of the outer turning edge.

[0011] Further, the two long sides of the fin body are equidistantly provided with lower grooves, and the fin body is provided with a plurality of upward protruding flow guide ribs.

[0012] Further, the mounting pipes are arranged into a plurality of rows along the length direction of the fin body, and adjacent rows of the mounting pipes are staggered.

[0013] Further, the heat dissipation units are symmetrically arranged between adjacent mounting pipes.

[0014] (Three) beneficial effects

[0015] The embodiment of the utility model provides a kind of windowed aluminum fin for heat exchanger.There is following beneficial effect:

[0016] 1, by a plurality of multi-angle triangular fins can form vortex while destroying airflow boundary layer in heat dissipation channel, effectively increase airflow contact time and destroy airflow boundary layer, significantly improve heat conduction efficiency.

[0017] 2, the front narrow rear wide flow guide groove can be oriented to guide and slow down airflow to the rear heat dissipation fin, enhance heat exchange.

[0018] 3, the outer turning edge and the containing groove structure facilitate the positioning of stacked fins, the blocking piece and the protrusion in the connecting cavity cooperate to ensure the close connection between the fins and improve the heat conduction performance. DRAWINGS

[0019] Figure 1 It is the overall structure of the utility model overhead schematic diagram;

[0020] Figure 2 It is the utility model Figure 1 structure left view schematic diagram;

[0021] Figure 3 It is the heat dissipation unit structure schematic diagram of the utility model;

[0022] Figure 4 It is the mounting pipe structure schematic diagram of the utility model.

[0023] In the figure: 1, fin body;2, mounting pipe;21, outer turning edge;22, containing groove;23, blocking piece;24, protrusion;25, limit groove;3, heat dissipation unit;31, heat dissipation fin;32, triangular fin;33, flow guide groove;41, lower groove;42, flow guide rib. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] Referring to the drawings Figures 1-4 A heat exchanger window aluminum fin, including the fin body 1 that overall is long strip structure, be equipped with a plurality of installation pipe 2 on the fin body 1, there is installation hole in installation pipe 2, for installing heat exchange pipe, be equipped with a plurality of louvers-shaped heat dissipation unit 3 on the fin body 1, each heat dissipation unit 3 is equipped with a plurality of equidistantly arranged heat dissipation fins 31, heat dissipation channel is formed between adjacent heat dissipation fins 31, the bottom of heat dissipation fin 31 is equipped with a plurality of triangle fins 32 extending into heat dissipation channel, the inclination angles of a plurality of triangle fins 32 are different, to form vortex in heat dissipation channel, the triangle fins 32 of different angles not only can destroy airflow boundary layer, but also can form a plurality of vortexes in heat dissipation channel, so that the airflow generates transverse mixing, not only can increase the contact time of airflow and heat dissipation fin, but also can destroy the boundary layer of airflow, to improve the heat conduction efficiency, enhance the heat dissipation effect of heat dissipation fin.

[0026] In the embodiment, the flow guide groove 33 is formed above the upper surface of the fin body 1, to direct the airflow to the rear heat dissipation fin 31, the inner width of the flow guide groove 33 is narrow in front and wide in back, to reduce the flow rate of the airflow flowing to the rear heat dissipation fin 31, to increase the heat conduction capacity, the flow guide groove 33 penetrates the top of the front heat dissipation fin 31 in the heat dissipation unit 3, and does not penetrate the last heat dissipation fin 31, the last heat dissipation fin 31 blocks the airflow flowing in the flow guide groove 33, so that it passes through the heat dissipation channel below the heat dissipation fin 31.

[0027] In the embodiment, the top of the installation pipe 2 is provided with an outwardly turned flange 21, and the bottom of the installation pipe 2 is provided with a receiving groove 22 capable of accommodating the outwardly turned flange 21, when the heat dissipation fins are stacked and installed, the outwardly turned flanges 21 of the upper and lower adjacent fins enter the receiving grooves 22, to position the upper and lower adjacent fins, facilitating installation.

[0028] In the embodiment, the accommodating groove 22 is provided with an outwardly expanded connecting cavity between the inner cavity of the mounting pipe 2, and a plurality of baffle plates 23 with bottom parts inclined to the center of the mounting pipe 2 are circumferentially arranged in the connecting cavity. The baffle plates 23 arranged in the connecting cavity can avoid excessive extrusion force of the baffle plates 23 on the heat exchange pipes inserted into the mounting pipe 2. The baffle plates 23 are provided with protrusions 24 on the side away from the center of the mounting pipe 2. The inner cavity of the outwardly turned flange 21 is provided with annular limiting grooves 25 for matching the protrusions 24. The limiting grooves 25 arranged in the inner cavity of the outwardly turned flange 21 can provide space for the baffle plates 23 to bend outwardly. When the heat exchange pipes are inserted into the inner cavity of the mounting pipe 2, the baffle plates 23 are extruded outwardly, and the protrusions 24 enter the limiting grooves 25 of the lower fin mounting pipe 2, so that the overall connection is more compact, and heat conduction is facilitated.

[0029] In the embodiment, the two long sides of the fin body 1 are provided with lower grooves 41 at equal intervals to destroy the boundary layer of the airflow, which helps to improve the heat exchange efficiency. The fin body 1 is provided with a plurality of upwardly protruding flow guide ribs 42 to further promote airflow turbulence.

[0030] In the embodiment, the mounting pipes 2 are arranged in a plurality of rows along the length direction of the fin body 1. This arrangement makes the heat exchange pipes on the fins more evenly distributed, which helps to evenly transfer heat, and the adjacent rows of mounting pipes 2 are staggered, which helps to eliminate the low-speed area of the airflow behind the pipes.

[0031] In the embodiment, the heat dissipation units 3 are symmetrically arranged between the adjacent mounting pipes 2 to ensure effective heat dissipation and overall heat dissipation performance of the fins.

[0032] It should be noted that, in the present text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0033] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A windowed aluminum fin for a heat exchanger, comprising a fin body (1), wherein the fin body (1) is provided with a plurality of mounting tubes (2) for mounting heat exchange tubes, characterized in that: The fin body (1) is provided with a number of louver-shaped heat dissipation units (3). Each heat dissipation unit (3) is provided with a number of equidistant heat dissipation fins (31). A heat dissipation channel is formed between adjacent heat dissipation fins (31). The bottom of the heat dissipation fins (31) is provided with a number of triangular wings (32) extending into the heat dissipation channel. The inclination angles of the triangular wings (32) are different to form vortices in the heat dissipation channel.

2. The vented aluminum fin for a heat exchanger as described in claim 1, characterized in that: The heat dissipation unit (3) has a guide groove (33) above the upper surface of the fin body (1) to guide the airflow to the rear heat dissipation fin (31). The guide groove (33) penetrates the top of the front heat dissipation fin (31) inside the heat dissipation unit (3) and does not penetrate the last heat dissipation fin (31).

3. The vented aluminum fin for a heat exchanger as described in claim 2, characterized in that: The guide groove (33) is narrower at the front and wider at the back.

4. A windowed aluminum fin for a heat exchanger as described in any one of claims 1-3, characterized in that: The top of the mounting tube (2) is provided with an outwardly flared edge (21), and the bottom of the mounting tube (2) is provided with a receiving groove (22) that can accommodate the outwardly flared edge (21).

5. The vented aluminum fin for a heat exchanger as described in claim 4, characterized in that: An outwardly expanding connecting cavity is provided between the receiving groove (22) and the inner cavity of the mounting tube (2). Several baffles (23) with their bottoms inclined toward the center of the mounting tube (2) are provided in the circumferential direction of the connecting cavity. A protrusion (24) is provided on the side of the bottom of the baffle (23) away from the center of the mounting tube (2). An annular limiting groove (25) for cooperating with the protrusion (24) is opened in the inner cavity of the outwardly turned edge (21).

6. The vented aluminum fin for a heat exchanger as described in claim 5, characterized in that: The fin body (1) has equidistant grooves (41) on both long sides, and the fin body (1) has several upward-protruding guide ribs (42).

7. The vented aluminum fin for a heat exchanger as described in claim 1, characterized in that: The mounting tubes (2) are arranged in several rows along the length of the fin body (1), and adjacent rows of mounting tubes (2) are staggered.

8. The vented aluminum fin for a heat exchanger as described in claim 1, characterized in that: The heat dissipation units (3) are symmetrically arranged between adjacent mounting pipes (2).

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