Liquid distributor and condenser heat dissipation structure using the same

Abstract

A kind of liquid distributor and condenser heat dissipation structure applied with the liquid distributor, the cover plate of liquid distributor and shell jointly form liquid distribution cavity, inlet is set on shell, inlet passage is formed on shell and is communicated with inlet, the inner side wall top of inlet passage extends in the direction away from inlet passage and has upper water baffle, water passing hole is opened on upper water baffle, cover plate extends and has lower water baffle in the inside of liquid distribution cavity, lower water baffle is below water passing hole, outlet is below lower water baffle.The advantages of the present application are that: the liquid distributor is provided with upper water baffle and lower water baffle in liquid distribution cavity, water flow can meander in liquid distribution cavity, reduce the water flow velocity of outlet, so as to improve the uniformity of water outlet.In addition, the positioning block of liquid distributor is arranged in the gap between adjacent flat tubes, the positioning block plays a limiting role on one hand, on the other hand, the positioning block can also play a windproof role, to ensure that outlet can smoothly water.

Description

Technical Field

[0001] This invention relates to the field of air conditioning component technology, and in particular 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 shell, 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 relatively uniform water output, in view 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 housing and a cover plate assembled on the housing. Both the housing and the cover plate are elongated. The cover plate and the housing together form a liquid distribution cavity. It also includes an inlet and an outlet connected to the liquid distribution cavity. The liquid distribution device is characterized in that: an inlet channel is formed on the housing, which is arranged along the length of the housing and connected to the inlet. An upper water-blocking baffle extends from the top of the inner sidewall of the inlet channel away from the inlet channel. A water-passing hole is opened on the upper water-blocking baffle. A lower water-blocking baffle extends into the liquid distribution cavity from the cover plate. The lower water-blocking baffle is located below the water-passing hole. The outlet is located below the lower water-blocking baffle.

[0007] Preferably, the upper water-blocking baffle extends away from the liquid inlet channel to abut against the inner wall of the cover plate. This facilitates the impact of water overflowing from the liquid inlet channel with the inner wall of the cover plate, thereby helping to slow down the water flow.

[0008] To improve the uniformity of water distribution, the water passage holes are spaced apart along the length of the upper water-blocking baffle. The water outlet holes are preferably evenly spaced.

[0009] Preferably, the vertical projection of the water passage hole falls entirely on the lower baffle plate. In this way, when the water flowing through the water passage hole flows downward, it must first flow onto the lower baffle plate. The lower baffle plate blocks the water flowing down from the water passage hole, which on the one hand releases the water pressure, and on the other hand improves the flow uniformity.

[0010] To ensure that 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.

[0011] 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 lower baffle plate. The liquid outlet is set on the water outlet platform and is distributed at intervals along the length of the water outlet platform.

[0012] To allow the water to flow in a circuitous manner from the lower baffle into the outlet, at least a portion of the vertical projection of the lower baffle falls into the outlet. This further slows down the water flow velocity, which helps improve the uniformity of the discharged water.

[0013] Preferably, the liquid inlet is located on the housing or cover plate.

[0014] More 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.

[0015] To further improve the uniformity of water output, a vertical baffle is installed inside the inlet channel to divide it into at least two inlet sub-channels, each with its own inlet port. This ensures that each inlet sub-channel has an independent inlet port, resulting in more uniform water intake and thus improving the uniformity of water output from the outlet.

[0016] Further preferably, the vertical baffle extends to the top of the upper water-blocking baffle to form a water-blocking strip on the upper surface of the upper water-blocking baffle. The water-blocking strip prevents water overflowing from each liquid inlet channel from interfering with each other, thereby improving the uniformity of the outflow.

[0017] 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.

[0018] There can be a variety of different assembly 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.

[0019] The technical solution adopted by this invention to solve the second technical problem mentioned above is as follows: a condenser heat dissipation structure, comprising a condenser, the condenser including a horizontally arranged upper liquid collecting pipe, a lower liquid collecting pipe, and flat tubes arranged at intervals between the upper and lower liquid collecting pipes, with heat dissipation fins installed between adjacent flat tubes, the upper liquid collecting pipe being interconnected with the lower liquid collecting pipe through the flat tubes, characterized in that: a 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 tubes, and the liquid outlet of the liquid distributor is located obliquely below the positioning block and corresponding to the position of the gap between adjacent flat tubes. In this way, the positioning block serves two purposes: firstly, it limits the liquid distribution, facilitating its installation and positioning; secondly, it acts as a windbreak, preventing airflow blowing towards the condenser from interfering with the water outlet and thus affecting the condenser's heat dissipation effect. Furthermore, the inclined arrangement of the condenser also facilitates the water flowing from the liquid distributor to fully flow over the surface of the condenser.

[0020] In order to install and fix the liquid distributor on the condenser, the cover plate of the liquid 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.

[0021] 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.

[0022] Compared with the prior art, the advantages of this invention are as follows: The distributor has an upper baffle plate extending from the top of the inner wall of the liquid inlet channel of the housing away from the liquid inlet channel. Furthermore, the lower baffle plate of the cover plate is located below the water passage of the upper baffle plate, and the outlet is located below the lower baffle plate. This allows the water flow to meander within the distribution chamber, reducing the water flow velocity at the outlet and thus improving the uniformity of the water output. Additionally, after the distributor is installed on the condenser, the positioning block of the distributor 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

[0023] Figure 1 This is a schematic diagram of the liquid distributor according to an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the liquid distributor from another angle;

[0025] Figure 3 for Figure 1An exploded view of the liquid distributor is shown below;

[0026] Figure 4 This is a schematic diagram of the shell structure according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the cover plate of the liquid distributor according to an embodiment of the present invention;

[0028] Figure 6 This is a cross-sectional view of the liquid distributor according to an embodiment of the present invention;

[0029] Figure 7 This is a cross-sectional view of the liquid distributor according to an embodiment of the present invention (with schematic water flow direction);

[0030] Figure 8 This is a schematic diagram of the heat dissipation structure of the condenser according to an embodiment of the present invention;

[0031] Figure 9 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 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 a liquid distribution chamber 3. In this embodiment, the housing 1 has an inlet 11 and an outlet 12, with the inlet 11 connected to the outlet 12 via 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. The liquid inlet 11 is directly connected to the liquid inlet channel 13. An upper water-blocking baffle 14 extends from the top of the inner sidewall 131 of the liquid inlet channel away from the liquid inlet channel, and the upper water-blocking baffle 14 extends to abut against the inner sidewall 25 of the cover plate. Water passage holes 15 are opened on the upper water-blocking baffle 14, and the water passage holes 15 are evenly distributed along the length direction of the upper water-blocking baffle 14.

[0035] 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 its upper surface is parallel to the upper baffle 14. The liquid outlets 12 are located on the water outlet platform 17 and are evenly distributed along the length of the water outlet platform 17, which is conducive to uniform water discharge. In addition, a guide portion 121 is formed at the bottom of the water outlet platform 17, which guides the direction of water discharge, as shown in Figure 2.

[0036] like Figure 3 and Figure 6 As shown, a vertical baffle 18 is installed in the middle of the liquid inlet channel 13, dividing the liquid inlet channel 13 into two independent liquid inlet sub-channels. Each liquid inlet sub-channel has an independent liquid inlet 11. Using two liquid inlet sub-channels for independent water intake helps improve the uniformity of water output from the liquid outlet 12. Furthermore, the vertical baffle 18 extends to the top of the upper water-blocking baffle 14, forming a water-blocking strip 181 on the upper surface of the upper water-blocking baffle. The water-blocking strip 181 prevents the water overflowing from the two liquid inlet sub-channels from interfering with each other.

[0037] like Figure 5 and Figure 7 As shown, a lower baffle 21 extends from the cover plate 2 into the liquid distribution chamber 3, and a water outlet channel 16 is provided between the lower baffle 21 and the inner wall 131 of the liquid inlet channel 13. The lower baffle 21 is located below the upper baffle 14 and above the water outlet platform 17, and the lower baffle 21 is parallel to the upper baffle 14. Specifically, the upper baffle 21 is located below the water passage hole 15, the liquid outlet 12 is located below the lower baffle 21, and the vertical projection of the water passage hole 15 falls completely on the lower baffle 21, and at least part of the vertical projection of the lower baffle 21 falls into the liquid outlet 12. This causes the water flowing out of the water passage 15 to have to flow in a detour before flowing out of the liquid outlet 12, which can further reduce the water flow velocity and prevent the water flowing out of the water passage 15 from flowing directly out of the liquid outlet 12, thus improving the uniformity of water output from the liquid outlet 12.

[0038] from Figure 7 As indicated by the arrows, the water flowing from the inlet 11 into the inlet channel 13 overflows from the upper baffle 14 inside 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 water passage 15, and then flows onto the lower baffle 21. It then flows through the lower baffle 21 into the outlet channel 16, and finally flows out from the outlet 12 below the outlet channel 16. Therefore, the water overflowing from the inlet channel 13 undergoes collisions and multiple meandering flows, releasing 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 , Figure 5 and Figure 7 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. Additionally, as... 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 8 and Figure 9 As 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 the upper liquid collection pipe 41 of the condenser 4. The arc-shaped mounting plate 24 has a wire hole 241. During installation, the arc-shaped mounting plate 24 is attached to the upper liquid collection pipe 41 and tied to it with a wire. 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 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 to position the liquid distributor and also serves to block the airflow, 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) mounted on the housing, wherein both the housing (1) and the cover plate (2) are elongated, and the cover plate (2) and the housing (1) 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 housing (1) has an inlet channel (13) arranged along the length of the housing and connected to the inlet port (11). An upper baffle plate (14) extends from the top of the inner wall (131) of the inlet channel (13) away from the inlet channel. A water passage hole (15) is formed on the upper baffle plate (14). A lower baffle plate (21) extends into the liquid distribution chamber from the cover plate (2). The lower baffle plate (21) is located below the water passage hole (15). The outlet port (12) is located below the lower baffle plate (21). The inner side of the inlet channel (13)... The lower part of the 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 lower baffle plate (21). 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 liquid inlet (11) is provided on the shell (1) or the cover plate (2). A vertical baffle (18) is installed in the liquid inlet channel (13) to divide the liquid inlet channel (13) into at least two liquid inlet sub-channels. Each of the liquid inlet sub-channels has the liquid inlet (11).

2. The liquid distributor according to claim 1, characterized in that: The upper water-blocking baffle (14) extends away from the liquid inlet channel to abut against the inner wall of the cover plate (2).

3. The liquid distributor according to claim 2, characterized in that: The water passage holes (15) are spaced apart along the length of the upper water baffle (14).

4. The liquid distributor according to claim 1, characterized in that: The vertical projection of the water passage (15) falls entirely on the lower water baffle (21).

5. The liquid distributor according to claim 4, characterized in that: A water outlet channel (16) is provided between the lower water baffle (21) and the inner wall (131) of the liquid inlet channel (13).

6. 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).

7. 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.

8. The liquid distributor according to claim 7, characterized in that: The vertical partition (18) extends to the top of the upper water-blocking partition (14) to form a water-blocking strip (181) on the upper surface of the upper water-blocking partition.

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 outer side and both ends of the housing (1) are provided with mounting posts (19), and the corresponding position of the cover plate (2) is provided with mounting lugs (23) for mounting on the mounting posts (19).

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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