Liquid distributor and condenser heat dissipation structure using the same

Abstract

A liquid distributor and a condenser heat dissipation structure using the same are provided. The liquid distributor has a shell and a cover plate which together define a liquid distribution cavity. A liquid inlet is provided on the shell or the cover plate. A liquid inlet channel is formed in the shell and communicates with the liquid inlet. A first water passing hole is formed in the inner side wall of the liquid inlet channel. An upper water blocking baffle extends from the inner side wall of the liquid inlet channel to a position away from the liquid inlet channel and is not higher than the bottom of the first water passing hole. A second water passing hole is formed in the upper water blocking baffle. A liquid outlet is located below the second water passing hole. The water overflowing from the liquid inlet channel flows out of the liquid outlet through the first water passing hole and the second water passing hole in sequence. The water flow is meandering in the liquid distribution cavity, thereby reducing the water flow speed of the liquid outlet and improving the uniformity of the water flow. In addition, the positioning block of the liquid distributor is arranged in the gap between adjacent flat tubes. The positioning block serves as a limiting part and also blocks the wind, thereby ensuring that the liquid outlet can smoothly discharge water.

Description

Technical Field

[0001] This invention relates to a device for diverting liquids, and more particularly to a liquid distributor and a condenser heat dissipation structure using the liquid distributor. Background Technology

[0002] A liquid distributor is a device used to uniformly distribute liquid. Various liquid distributors with different structures exist in the prior art. For example, the Chinese utility model patent No. 201320500874.4 (authorization announcement No. CN 203494521 U) discloses a liquid distributor device. This device consists of an upper liquid distribution plate, a middle liquid distribution plate, a lower liquid distribution plate, a connecting plate, distribution pipes, and distribution holes. The upper, middle, and lower liquid distribution plates are all disc-shaped structures with uniformly distributed distribution holes at their bottoms. The upper, middle, and lower liquid distribution plates are arranged in three layers, connected around their perimeter by a connecting plate. Distribution pipes are connected to the distribution holes of the lower liquid distribution plate. All distribution pipes protrude through the distribution holes to the same height. Because the exposed height of the pipe ends of the distribution pipes connected to the various distribution holes of the liquid distribution plate is the same, the liquid flowing into the distribution pipes through the pipe openings is uniform, thereby greatly improving the uniformity of the liquid distribution and meeting the needs of improving product quality and production efficiency. Another example is the "Liquid Distributor, Heat Exchanger, and Air Conditioning Unit" disclosed in Chinese invention patent application No. 201810879931.1 (Publication No. CN 108917232 A). This liquid distributor includes an upper sealing plate and a lower housing. The upper sealing plate is disposed on the upper part of the lower housing and together with the lower housing forms a liquid distribution cavity. The edge of the lower housing is bent outwards towards the liquid distribution cavity to form a first bent portion, which is riveted to the upper sealing plate. The liquid distributor, heat exchanger, and air conditioning unit provided by this invention can increase assembly efficiency and accuracy by riveting the upper sealing plate and the lower housing, effectively preventing welding deformation of the liquid distributor. Moreover, the first and second liquid distribution plates can perform three liquid distributions on the liquid distributor, ensuring that the refrigerant entering the liquid distributor is evenly distributed in the axial and radial directions, thus ensuring the liquid distribution effect of the liquid distributor.

[0003] Furthermore, to improve cooking comfort, air-conditioning-style range hoods were invented, and condensate distributors were installed on them. When air-conditioning mode is activated, the condensate water condensing on the evaporator surface is collected and pumped to the condensate distributor, then flows through the distributor's outlet to the condenser. This cooling effect of the condensate water improves the condenser's heat exchange efficiency, thereby enhancing air-conditioning performance. However, the high water pressure from the pump can cause excessively fast water flow at the distributor outlet, leading to uneven water distribution and affecting the condenser's heat dissipation. Summary of the Invention

[0004] The first technical problem to be solved by the present invention is to provide a liquid distributor with a simple structure and uniform water output, in light of the above-mentioned existing technology.

[0005] The second technical problem to be solved by the present invention is to provide a condenser heat dissipation structure with a liquid distributor that has good heat dissipation effect, in view of the above-mentioned existing technology.

[0006] The technical solution adopted by the present invention to solve the first technical problem mentioned above is as follows: the liquid distributor includes a shell and a cover plate assembled with each other, both of which are elongated and form a liquid distribution cavity together. It also includes an inlet and an outlet connected to the liquid distribution cavity. The liquid inlet is located on the shell or the cover plate. An inlet channel is formed on the shell along the length of the shell and connected to the inlet. A first water passage hole is opened on the inner side wall of the inlet channel. An upper water baffle extends from the inner side wall of the inlet channel away from the bottom of the first water passage hole. A second water passage hole is opened on the upper water baffle. The outlet is located below the second water passage hole.

[0007] The liquid outlet can be set in multiple different positions. Preferably, the lower part of the inner wall of the liquid inlet channel extends away from the liquid inlet channel to form a water outlet platform. The water outlet platform is strip-shaped and located below the upper water baffle. The liquid outlet is set on the water outlet platform and is distributed at intervals along the length of the water outlet platform.

[0008] To improve the uniformity of water flow from the outlet, a lower baffle plate extends into the distribution chamber from the cover plate. This lower baffle plate is located below the second water passage, and the outlet is also located below the lower baffle plate. The lower baffle plate allows the water to flow in a meandering pattern within the distribution chamber, which helps reduce the water flow velocity and improve the uniformity of water flow.

[0009] Further preferably, the vertical projection of the second water passage falls entirely on the lower baffle plate. In this way, when the water flowing down from the second water passage, it must first flow onto the lower baffle plate. The lower baffle plate acts as a barrier to the water flowing down from the second water passage, which on the one hand releases the water pressure, and on the other hand improves the flow uniformity.

[0010] Further preferably, at least a portion of the vertical projection of the lower baffle plate falls into the liquid outlet. This allows the water flow to meander from the lower baffle plate into the liquid outlet, further slowing the water flow velocity and improving the uniformity of the discharged water.

[0011] To ensure that the water flowing into the lower baffle can flow out smoothly, an outlet channel is provided between the lower baffle and the inner wall of the inlet channel. Since the distributor is usually small in size, if the lower baffle extends too far inward, it will reduce the cross-sectional area of ​​the outlet channel, affecting the water discharge effect and even causing water discharge difficulties.

[0012] To improve the uniformity of water output, the first water passage holes are spaced apart along the length of the liquid inlet channel.

[0013] To improve the uniformity of water output, the second water passage holes are spaced apart along the length of the upper water baffle.

[0014] In order to ensure that the water overflowing from the liquid inlet channel can only flow down to the lower baffle through the second water passage, the upper baffle extends away from the liquid inlet channel to abut against the inner wall of the cover plate.

[0015] Preferably, the housing is a lower housing, the cover plate is an upper cover plate mounted on the lower housing, and both the liquid inlet and the liquid outlet are located on the lower housing. Of course, the liquid inlet and the liquid outlet can also be located on the upper cover plate.

[0016] For ease of installation and positioning, the bottom of the cover plate has positioning blocks extending outwards. These positioning blocks are spaced apart along the length of the lower cover plate, and each positioning block corresponds to a liquid outlet.

[0017] The liquid inlet can be located at multiple different positions in the liquid inlet channel. Preferably, the liquid inlet is located at the end of the housing. In this way, liquid enters from the end of the liquid inlet channel and flows into the interior of the liquid inlet channel.

[0018] For ease of assembly and disassembly, the housing and cover are detachable.

[0019] Further preferably, there can be a variety of different detachable connection structures between the housing and the cover plate. Preferably, the outer side and both ends of the housing are provided with mounting posts, and the corresponding positions of the cover plate are provided with mounting lugs for mounting on the mounting posts.

[0020] The technical solution adopted by the present invention to solve the second technical problem mentioned above is as follows: a condenser heat dissipation structure, including a condenser, the condenser including an upper liquid collecting pipe and a lower liquid collecting pipe arranged horizontally, and flat pipes arranged at intervals between the upper liquid collecting pipe and the lower liquid collecting pipe, heat dissipation fins are installed between adjacent flat pipes, the upper liquid collecting pipe is interconnected with the lower liquid collecting pipe through the flat pipes, characterized in that: the liquid distributor is installed on the upper liquid collecting pipe, the condenser is inclined relative to the vertical plane, the positioning block of the liquid distributor is inserted obliquely downward in the gap between adjacent flat pipes, and the liquid outlet of the liquid distributor is located obliquely below the positioning block and corresponds to the position of the gap between adjacent flat pipes.

[0021] The cover plate of the distributor has an arc-shaped mounting plate adapted to the upper liquid collection pipe of the condenser, and the arc-shaped mounting plate is installed and fixed on the upper liquid collection pipe.

[0022] Further preferably, the first end of the lower liquid collection pipe is the refrigerant inlet end, and the second end of the lower liquid collection pipe is the refrigerant outlet end. In this way, the refrigerant inlet end and the refrigerant outlet end are located on the lower liquid collection pipe, which facilitates the installation of a liquid distributor on the upper liquid collection pipe.

[0023] Compared with the prior art, the advantages of this invention are as follows: The distributor has a first water passage hole on the inner wall of the inlet channel, and a second water passage hole is formed on the upper baffle plate extending outward from the inner wall of the inlet channel. The outlet is located below the second water passage hole. Water overflowing from the inlet channel flows through the first and second water passage holes sequentially and then out of the outlet. The water flow can meander within the distribution chamber, thereby reducing the water flow velocity at the outlet and improving the uniformity of water output. Furthermore, after the distributor is installed on the condenser, the positioning block is located within the gap between adjacent flat tubes. The positioning block serves two purposes: firstly, it limits the position of the distributor, facilitating installation; secondly, it acts as a windbreak, preventing airflow towards the condenser from interfering with the water output from the outlet and ensuring smooth water flow. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the liquid distributor according to an embodiment of the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the liquid distributor from another angle;

[0026] Figure 3 for Figure 1 An exploded view of the liquid distributor is shown below;

[0027] Figure 4 This is a schematic diagram of the housing of the liquid distributor according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the cover plate of the liquid distributor according to an embodiment of the present invention;

[0029] Figure 6 This is a cross-sectional view of the liquid distributor according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the heat dissipation structure of the condenser according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the condenser according to an embodiment of the present invention. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] like Figures 1 to 4 As shown, the liquid distributor in this embodiment includes a housing 1 and a cover plate 2. Both the housing 1 and the cover plate 2 are elongated, with the housing 1 being the lower housing and the cover plate 2 being the upper cover plate. Mounting posts 19 are provided on the outer side and both ends of the housing 1, and mounting lugs 23 are provided at corresponding positions on the cover plate 2. During installation, the cover plate 2 covers the housing 1, and screws (not shown in the figure) pass through the mounting lugs 23 and are fixed to the corresponding mounting posts 19, allowing the cover plate 2 to be detachably mounted on the housing 1. After installation, the cover plate 2 and the housing 1 together form the liquid distribution chamber 3. (See Figure 1 for details.) Figure 6 In this embodiment, the housing 1 has a liquid inlet 11 and a liquid outlet 12, and the liquid inlet 11 is connected to the liquid outlet 12 through the liquid distribution chamber 3.

[0034] In this embodiment, a liquid inlet channel 13 is provided on the outer side of the housing 1. The liquid inlet channel 13 is arranged along the length direction of the housing 1 and is a component of the liquid distribution chamber 3. A liquid inlet 11 is located at the end of the housing 1 and is directly connected to the liquid inlet channel 13. A first water passage hole 14 is opened on the inner sidewall 131 of the liquid inlet channel 13. The first water passage holes 14 are evenly distributed along the length direction of the liquid inlet channel 13. When water enters the liquid inlet channel 13 from the liquid inlet 11 overflows, it can overflow evenly from each of the first water passage holes 14.

[0035] like Figures 3 to 6 As shown, an upper water-blocking baffle 15 extends from the middle of the inner wall of the liquid inlet channel 13 away from the liquid inlet channel, and the upper water-blocking baffle 15 extends to abut against the inner wall 25 of the cover plate. The upper water-blocking baffle 15 is perpendicular to the inner wall 131 of the liquid inlet channel 13 and is not higher than the bottom of the first water passage 14. A second water passage 16 is formed on the upper water-blocking baffle 15, and the second water passage 16 is spaced apart along the length of the upper water-blocking baffle 15. In this way, water overflowing from the first water passage 14 can flow downward through the second water passage 16.

[0036] A water outlet platform 17 extends from the lower part of the inner wall 131 of the liquid inlet channel 13 away from the liquid inlet channel. The water outlet platform 17 is strip-shaped and located below the upper baffle 15. The upper surface of the water outlet platform 17 is parallel to the upper baffle 15. Liquid outlets 12 are provided on the water outlet platform 17 and are evenly distributed along the length of the water outlet platform 17. Therefore, the liquid outlets 12 are located below the second water passage 16, allowing water flowing from the second water passage 16 to flow out through the liquid outlets 12. Furthermore, a guide portion 121 is formed at the bottom of the water outlet platform 17 at the liquid outlet 12. The guide portion 121 guides the direction of water flow. (See [reference]). Figure 2 .

[0037] like Figure 5and Figure 6 As shown, a lower baffle 21 extends from the cover plate 2 into the liquid distribution chamber 3. The lower baffle 21 is parallel to the upper baffle 15, located below the upper baffle 15 and above the outlet platform 17. An outlet channel 18 is provided between the lower baffle 21 and the inner wall 131 of the liquid inlet channel 13. Specifically, the lower baffle 21 is located below the second water passage 16, the outlet 12 is located below the lower baffle 21, and the vertical projection of the second water passage 16 falls entirely on the lower baffle 21, with at least a portion of the vertical projection of the lower baffle 21 falling into the outlet 12. As a result, the water flowing out of the second water passage 16 needs to flow in a detour before it can flow out of the liquid outlet 12, which can further reduce the water flow velocity and prevent the water flowing out of the second water passage 16 from flowing directly out of the liquid outlet 12, thus improving the uniformity of water output from the liquid outlet 12.

[0038] like Figure 6 As shown by the arrow, the direction of water flow is indicated. Water flowing into the inlet channel 13 from the inlet 11 overflows from the first water passage 14 on the inner wall 131 of the inlet channel 13. Due to the pressure of the water, the overflowing water rushes towards the inner wall 25 of the cover plate, flows out through the second water passage 16, and then flows onto the lower baffle 21. After passing through the lower baffle 21, it flows into the outlet channel 18 and finally flows out from the outlet 12 below the outlet channel 18. Thus, it can be seen that the water overflowing from the inlet channel 13 undergoes collision and multiple meandering flows, releasing the water pressure and slowing down the water flow rate at the outlet 12. This improves the uniformity of the water flow from the outlet 12, meeting the water distribution requirements of the distributor.

[0039] like Figure 2 As shown, in this embodiment, the bottom of the cover plate 2 has positioning blocks 22 extending outwards. The positioning blocks 22 are spaced apart along the length of the lower cover plate 2, and each positioning block 22 corresponds to a liquid outlet 12. Figure 5 As shown, the bottom of the cover plate 2 has a support block 26 extending inward. After the cover plate 2 is installed on the housing 1, the support block 26 is supported on the water outlet platform 17 of the housing 1, which serves to prevent loosening.

[0040] like Figure 7 and Figure 8As shown, the condenser heat dissipation structure of this embodiment includes a condenser 4 and a liquid distributor mounted on the condenser. The condenser 4 includes a horizontally arranged upper liquid collecting pipe 41, a lower liquid collecting pipe 42, and flat pipes 43 spaced apart between the upper and lower liquid collecting pipes. Heat dissipation fins 44 are installed between adjacent flat pipes 43. The upper liquid collecting pipe 41 is interconnected with the lower liquid collecting pipe 42 through the flat pipes 43. The first end of the lower liquid collecting pipe 42 is the refrigerant inlet, and the second end is the refrigerant outlet. The refrigerant flowing into the refrigerant inlet has a higher temperature, and after flowing through the flat pipes 43, the refrigerant flowing out of the refrigerant outlet has a relatively lower temperature. The specific structure and working principle of the condenser 4 are the same as existing condensers and will not be described further here.

[0041] Combination Figure 1 It is known that the cover plate 2 of the liquid distributor has an arc-shaped mounting plate 24, which is adapted to and installed on the upper liquid collection pipe 41 of the condenser 4. The condenser 4 is inclined relative to the vertical plane, and the positioning block 22 of the liquid distributor is inserted obliquely downward in the gap between adjacent flat tubes 43. The liquid outlet 12 of the liquid distributor is located obliquely below the positioning block 22 and corresponds to the position of the gap between adjacent flat tubes 43, that is, the liquid outlet 12 corresponds to the position of the heat dissipation fins 44. The positioning block 22 serves two purposes: firstly, it positions the liquid distributor, and secondly, it acts as a windbreak, preventing the airflow blowing towards the condenser 4 from interfering with the water outlet 12 and affecting the heat dissipation effect of the condenser.

[0042] During operation, the water in the distributor flows out from each outlet 12 and flows into the corresponding heat dissipation fins 44 of the condenser 4. It then flows downward along the surface of the heat dissipation fins 44 to cool them down, thereby improving the heat dissipation effect of the condenser.

[0043] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, various modifications or improvements can be made to the present invention without departing from the principle of the present invention. For example, the shell can adopt an assembly structure of an upper shell and a lower cover plate. Correspondingly, the liquid inlet and liquid outlet can be set on the upper shell or the lower cover plate. These are all considered to be within the protection scope of the present invention.

Claims

1. A liquid distributor, comprising a housing (1) and a cover plate (2) assembled together, wherein both the housing (1) and the cover plate (2) are elongated, and the housing (1) and the cover plate (2) together form a liquid distribution cavity (3), and further comprising an inlet (11) and an outlet (12) communicating with the liquid distribution cavity (3), characterized in that: The inlet (11) is located on the housing (1) or the cover plate (2). The housing (1) has an inlet channel (13) arranged along its length and connected to the inlet (11). A first water passage hole (14) is opened on the inner wall of the inlet channel (13). An upper water-blocking baffle (15) extends from the inner wall of the inlet channel (13) away from the bottom of the first water passage hole (14). A second water passage hole (16) is opened on the upper water-blocking baffle (15). The outlet (12) is located below the second water passage hole (16). The inlet channel (11)... 3) The lower part of the inner wall (131) extends away from the liquid inlet channel and has a water outlet platform (17). The water outlet platform (17) is strip-shaped and located below the upper water baffle (15). The liquid outlet (12) is provided on the water outlet platform (17) and is distributed at intervals along the length of the water outlet platform (17). The cover plate (2) extends into the liquid distribution chamber (3) and has a lower water baffle (21). The lower water baffle (21) is located below the second water passage (16). The liquid outlet (12) is located below the lower water baffle (21). The housing (1) and the cover plate (2) are detachably connected.

2. The liquid distributor according to claim 1, characterized in that: The vertical projection of the second water passage (16) falls entirely on the lower water baffle (21).

3. The liquid distributor according to claim 1, characterized in that: At least a portion of the vertical projection of the lower baffle plate (21) falls into the liquid outlet (12).

4. The liquid distributor according to claim 1, characterized in that: A water outlet channel (18) is provided between the lower water baffle (21) and the inner wall (131) of the liquid inlet channel (13).

5. The liquid distributor according to claim 1, characterized in that: The first water passage (14) is distributed at intervals along the length of the liquid inlet channel (13).

6. The liquid distributor according to claim 1, characterized in that: The second water passage (16) is distributed at intervals along the length of the upper water baffle (15).

7. The liquid distributor according to claim 1, characterized in that: The upper water-blocking baffle (15) extends away from the liquid inlet channel (13) and abuts against the inner wall of the cover plate (2).

8. The liquid distributor according to claim 1, characterized in that: The housing (1) is the lower housing, the cover plate (2) is the upper cover plate assembled on the lower housing, and the liquid inlet (11) and liquid outlet (12) are both located on the lower housing.

9. The liquid distributor according to claim 1, characterized in that: The bottom of the cover plate (2) has a positioning block (22) extending outward. The positioning blocks (22) are distributed at intervals along the length of the lower cover plate (2), and the positioning blocks (22) correspond one-to-one with the liquid outlet (12).

10. The liquid distributor according to claim 1, characterized in that: The liquid inlet (11) is located at the end of the housing (1).

11. A condenser heat dissipation structure, comprising a condenser (4), the condenser (4) comprising a transversely arranged upper liquid collecting pipe (41), a lower liquid collecting pipe (42), and flat pipes (43) arranged at intervals between the upper liquid collecting pipe and the lower liquid collecting pipe, heat dissipation fins (44) being installed between adjacent flat pipes (43), the upper liquid collecting pipe (41) being interconnected with the lower liquid collecting pipe (42) through the flat pipes (43), characterized in that: The liquid distributor according to claim 9 is installed on the upper liquid collection pipe (41). The condenser (4) is inclined relative to the vertical plane. The positioning block (22) of the liquid distributor is inserted obliquely downward in the gap between adjacent flat pipes (43). The liquid outlet (12) of the liquid distributor is located obliquely below the positioning block (22) and corresponds to the gap position between adjacent flat pipes (43).

12. The condenser heat dissipation structure according to claim 11, characterized in that: The cover plate (2) of the distributor has an arc-shaped mounting plate (24) adapted to the upper liquid collection pipe (41) of the condenser (4), and the arc-shaped mounting plate (24) is installed and fixed on the upper liquid collection pipe (41).

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