Liquid distributor and condenser heat dissipation structure using the same

Abstract

A kind of liquid distributor and the condenser heat dissipation structure of application have the liquid distributor, including shell and cover plate, cover plate and shell jointly form liquid distribution cavity, also including with liquid distribution cavity being connected with liquid inlet and liquid outlet, in shell or cover plate is formed with the liquid inlet channel being communicated with liquid inlet, the inner wall surface of liquid inlet channel is uneven rough structure, the inner side wall top of liquid inlet channel is bent and extends to the side of the liquid outlet and forms upper baffle, liquid outlet is located below upper baffle.The liquid distributor is rough structure by being designed in the inner wall of liquid inlet channel, the water flowing from liquid inlet can make the overflow of downstream end of liquid inlet channel slightly greater than the overflow of upstream end during the process of flowing along liquid inlet channel, the heat dissipation structure of condenser application has the liquid distributor, after the downstream end of liquid inlet channel of liquid distributor and the refrigerant inlet end of condenser are located on the same side, the refrigerant inlet end of condenser can be more effectively heat-dissipated, and then the overall heat dissipation effect of condenser is improved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning 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 each distribution hole 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. Additionally, considering that the refrigerant temperature at the condenser's inlet is higher than at the outlet, the condensate distributor's structure needs to be modified to compensate for this uneven heating. This allows the water flowing from the distributor outlet to better cool the condenser, improving its overall heat exchange efficiency. 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, the cover plate and the housing together forming a liquid distribution cavity, and also includes an inlet and an outlet communicating with the liquid distribution cavity, characterized in that: an inlet channel communicating with the inlet is formed on the housing or the cover plate, the inner wall surface of the inlet channel has an uneven and rough structure, the top of the inner side wall of the inlet channel bends and extends towards the side where the outlet is located to form an upper partition, and the outlet is located below the upper partition.

[0007] Preferably, the surface roughness Ra of the inner wall of the liquid inlet channel is ≥1.6 micrometers. The greater the roughness, the more significant the obstruction effect on the water flow.

[0008] To further block the flow of water into the inlet channel, a water-blocking component is installed inside the inlet channel.

[0009] The water-blocking component can have various structures. Preferably, the water-blocking component is a water-blocking rib that is spaced apart along the water flow direction of the liquid inlet channel. The water-blocking ribs slow down the water flow, reduce the impact of the water flow on the downstream rear wall of the liquid inlet channel, and effectively reduce the overflow at the downstream end of the liquid inlet channel. Correspondingly, the overflow at the upstream end of the liquid inlet channel will increase, so that the downstream overflow of the liquid inlet channel will not be significantly greater than the upstream overflow, thereby helping to improve the uniformity of water discharge from the outlet.

[0010] Further preferably, the height of the water-blocking ribs increases gradually along the water flow direction of the inlet channel. In this way, the water-blocking ribs can effectively resist the impact of the water flow multiple times, which helps to improve the uniformity of water output from the outlet.

[0011] Further preferably, the spacing of the water-blocking ribs gradually decreases along the water flow direction of the inlet channel. This can further reduce the overflow downstream of the inlet channel, while the overflow upstream of the inlet channel increases accordingly, ensuring that the downstream overflow of the inlet channel is not significantly greater than the upstream overflow, thereby improving the uniformity of water output from the outlet.

[0012] Further preferably, the water-blocking ribs are all located in the middle and lower reaches of the liquid inlet channel. In this way, after the water is blocked by the water-blocking ribs, the overflow in the middle and lower reaches of the liquid inlet channel is reduced, while the overflow in the upper reaches of the liquid inlet channel is increased. This ensures that the downstream overflow in the liquid inlet channel is not significantly greater than the upstream overflow, thereby improving the uniformity of the liquid outlet.

[0013] The liquid distributor is typically designed as a long strip. Preferably, both the housing and the cover are long strips, and the liquid inlet channel is located on the housing and arranged along the length of the housing.

[0014] Preferably, the housing is a lower housing, and the cover plate is an upper cover plate mounted on the lower housing. Both the inlet and outlet are located on the lower housing. This allows water to flow upwards from the bottom of the distributor and outwards from the bottom, facilitating a meandering flow within the distribution chamber, thus slowing the water flow and improving the uniformity of the output. Alternatively, the distributor can also employ an upper housing with a lower cover plate; correspondingly, the inlet and outlet can also be located on the lower cover plate.

[0015] The liquid inlet can be installed in various ways. Preferably, the liquid inlet is located at the end of the lower housing, and the liquid inlet's inlet direction is perpendicular to the water flow direction inside the liquid inlet channel. In this way, the water flow entering through the liquid inlet is turned, which can reduce the impact of the water flow on the downstream rear wall of the liquid inlet channel, and help reduce the amount of water overflowing downstream of the liquid inlet channel.

[0016] To prevent excessive water flow from overflowing from the upstream end of the inlet channel when the inlet flows in too rapidly, the inner wall of the inlet channel has an upward-extending baffle plate corresponding to the inlet position. In this way, the baffle plate can block the water flow into the inlet.

[0017] The liquid outlets can be located in multiple different positions. Preferably, a water outlet platform extends from the lower part of the inner wall of the liquid inlet channel away from the liquid inlet channel. The water outlet platform is strip-shaped, and the liquid outlets are located on the water outlet platform and spaced apart along the length of the water outlet platform. In this way, the liquid outlets are spaced apart along the length direction, which helps to improve the uniformity of the liquid discharge.

[0018] To prevent water overflowing from the upper baffle from flowing directly into the outlet when the water flow is small, the vertical projections of the upper baffle and the outlet on the horizontal plane do not overlap.

[0019] To further improve the uniformity of water discharge from the outlets, the outlets are evenly distributed along the length of the water discharge platform.

[0020] Preferably, the outlet has a guide section formed at the bottom of the water outlet platform. By providing the guide section, the water flowing out of the outlet can flow along the inner wall of the guide section, preventing it from flowing directly down.

[0021] To further improve the uniformity of water flow, the cover plate has a lower baffle extending inward into the liquid distribution chamber, located above the water outlet platform. With the lower baffle in place, a chamber for water flow is formed above it. When the water flow velocity is high, water overflowing from the inlet channel first flows into the chamber above the lower baffle, then flows in the opposite direction into the chamber below the upper baffle, and finally flows out through the outlet. In this way, the water flow undergoes multiple meandering flows, which slows down the flow velocity at the outlet and improves the uniformity of water output.

[0022] Further preferably, the lower partition and the liquid outlet have overlapping vertical projections on the horizontal plane. This prevents water flowing into the chamber above the upper partition from flowing directly downwards out of the liquid outlet.

[0023] Further preferably, the lower and upper partitions have no overlapping portion in their vertical projections on the horizontal plane. Since the distributor is usually small in size, if the lower partition extends excessively inward, it will reduce the cross-sectional area of ​​the water outlet channel, affecting the water outlet effect and even causing water outlet difficulties.

[0024] To facilitate installation and positioning, the bottom of the cover plate has positioning blocks extending outward, which are spaced apart along the length of the cover plate.

[0025] Preferably, the bottom of the cover plate has an inwardly extending support block, which supports the water outlet platform. The support block serves to prevent the distributor from becoming loose.

[0026] In a further preferred embodiment, the upper partition, corresponding to the downstream end of the liquid inlet channel, extends a protrusion towards the liquid outlet side, and a drainage hole is formed on the protrusion. In this way, after water directly hits the rear wall of the liquid inlet channel, the overflowing water can flow downwards through the drainage hole, preventing water from directly overflowing to the liquid outlet and improving the liquid uniformity effect.

[0027] More preferably, the cover plate is detachably connected to the housing.

[0028] Various assembly structures can be used 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. In this way, the housing and the cover plate can be fixed together with screws, making assembly very convenient.

[0029] 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, the first end of the lower liquid collecting pipe is the refrigerant inlet end, and the second end of the lower liquid collecting pipe is the refrigerant outlet end, characterized in that: the liquid distributor is installed on the upper liquid collecting pipe, and the downstream end of the liquid inlet channel corresponds to the first end of the upper liquid collecting pipe, the upstream end of the liquid inlet channel corresponds to the second end of the upper liquid collecting pipe, and the first end of the upper liquid collecting pipe and the first end of the lower liquid collecting pipe are located on the same side. Since the temperature at the refrigerant inlet of the condenser is higher than that at the refrigerant outlet, the refrigerant inlet needs more heat dissipation. Therefore, by placing the downstream end of the liquid distributor's inlet channel on the same side as the refrigerant inlet of the condenser, the water flow rate at the outlet corresponding to the downstream end of the liquid distributor is relatively large, which can more effectively dissipate heat at the refrigerant inlet of the condenser, thereby improving the overall heat dissipation effect of the condenser.

[0030] Preferably, the condenser is inclined relative to the vertical plane, and the positioning block of the liquid distributor is inserted obliquely downwards into the gap between adjacent flat tubes. The outlet of the liquid distributor is located obliquely below the positioning block and corresponds to the position of the gap between adjacent flat tubes. In this way, the positioning block serves two purposes: firstly, it limits the liquid distributor's position, facilitating its installation; secondly, it acts as a windbreak, preventing airflow from interfering with the water flow from the outlet and thus affecting the condenser's heat dissipation. Furthermore, the inclined arrangement of the condenser ensures that the water flowing from the liquid distributor flows sufficiently across the condenser's surface.

[0031] 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.

[0032] Compared with the prior art, the advantages of the present invention are as follows: By designing a rough surface structure in the liquid inlet channel of the housing, the liquid distributor can prevent most of the water in the liquid inlet channel from overflowing from the downstream end during the flow of water flowing in from the inlet. This allows the water in the liquid inlet channel to overflow from the upper baffle relatively evenly, with the overflow amount at the downstream end of the liquid inlet channel being slightly greater than that at the upstream end. The water then flows out through the outlet below the upper baffle. After applying the liquid distributor to the heat dissipation structure of the condenser, with the downstream end of the liquid distributor's liquid inlet channel and the refrigerant inlet end of the condenser on the same side, the water flow rate at the outlet corresponding to the downstream end of the liquid inlet channel is relatively large, while the water flow rate at the outlet corresponding to the upstream end of the liquid inlet channel is relatively small. This allows for more effective heat dissipation at the refrigerant inlet end of the condenser, thereby improving the overall heat dissipation effect of the condenser. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the liquid distributor according to an embodiment of the present invention;

[0034] Figure 2 for Figure 1 A schematic diagram of the liquid distributor from another angle;

[0035] Figure 3 for Figure 1 An exploded view of the liquid distributor is shown below;

[0036] Figure 4 for Figure 1 The side view of the liquid distributor is shown.

[0037] Figure 5 This is a schematic diagram of the cover plate of the liquid distributor according to an embodiment of the present invention;

[0038] Figure 6 This is a structural cross-sectional view of the housing of the liquid distributor according to an embodiment of the present invention;

[0039] Figure 7 This is a cross-sectional view of the liquid distributor according to an embodiment of the present invention;

[0040] Figure 8 This is a schematic diagram of the heat dissipation structure of the condenser according to an embodiment of the present invention;

[0041] Figure 9 This is a schematic diagram of the condenser according to an embodiment of the present invention. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0043] like Figures 1 to 5As 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 24 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 24 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 and the lower housing have an inlet 11 and an outlet 12, with the inlet 11 connected to the outlet 12 via the liquid distribution chamber 3.

[0044] 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 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. In this embodiment, there is one liquid inlet 11 located at the end of the housing 1, and the liquid inlet 11 is connected to the upstream end of the liquid inlet channel 13. The liquid inlet direction is perpendicular to the water flow direction inside the liquid inlet channel 13. An upwardly extending baffle plate 16 is provided on the inner sidewall 131 of the upstream end of the liquid inlet channel 13. After the baffle plate 16 is provided, it can prevent water from rushing out of the upstream end of the liquid inlet channel 13 when the water flow at the liquid inlet 11 is too rapid, thus preventing a large amount of water from overflowing from the upstream end of the liquid inlet channel 13.

[0045] like Figure 6 As shown, the inner wall surface of the liquid inlet channel 13 is designed with an uneven, rough structure. In this embodiment, the surface roughness Ra ≥ 1.6 micrometers. Thus, as the water flowing into the inlet 11 flows downstream along the liquid inlet channel 13, the rough structure of the inner wall of the liquid inlet channel 13 can block the water flow, thereby preventing most of the water in the liquid inlet channel 13 from overflowing from the downstream end. This allows water to overflow from the upstream end of the liquid inlet channel 13, improving the uniformity of the water output. Experiments have verified that different roughnesses have different blocking effects on water flow; the greater the roughness, the better the blocking effect.

[0046] Besides using a rough structure to block water flow, a water-blocking component structure can also be used. Figure 3 The direction indicated by the middle arrow A is the water flow direction of the liquid inlet channel 13. A water-blocking component is installed inside the liquid inlet channel 13. The function of the water-blocking component is to prevent the liquid flowing in from the liquid inlet 11 from directly hitting the rear wall 132 at the downstream end of the liquid inlet channel 13. In this embodiment, the water-blocking component is a water-blocking rib 14 arranged at intervals along the water flow direction of the liquid inlet channel 13. The water-blocking rib 14 is located in the middle and downstream of the liquid inlet channel 13, and the height of the water-blocking rib 14 increases gradually along the water flow direction of the liquid inlet channel 13. In addition, the spacing of the water-blocking rib 14 gradually decreases along the water flow direction of the liquid inlet channel 13.

[0047] The aforementioned water-blocking rib 14 structure is installed within the liquid inlet channel 13. As the water flows from the inlet 11 into the liquid inlet channel 13 from upstream to downstream, it first encounters the water-blocking rib 14 near the middle of the liquid inlet channel 13, preventing the water from directly impacting the rear wall 132 at the downstream end of the liquid inlet channel 13. Since the height of the water-blocking rib is lowest at this location, the water continues to flow downstream after passing over it. Next, the water encounters the next water-blocking rib 14, namely the middle water-blocking rib 14 shown in the figure. Because this water-blocking rib... The height of the first baffle 14 is higher than the height of the previous baffle 14. Therefore, the baffle 14 here further obstructs the water flow to prevent the water flow from rushing onto the rear wall 132 of the downstream end of the liquid inlet channel 13. After the water flow passes the middle baffle 14, it continues to flow downstream and finally encounters the baffle 14 near the downstream end. The height of this baffle 14 is higher than the height of the middle baffle 14, which further obstructs the water flow and prevents the water flow from rushing onto the rear wall 132 of the downstream end of the liquid inlet channel 13.

[0048] The water-blocking component is not limited to the water-blocking rib 14. It can be used as long as it can block the water flow. For example, the water-blocking component can be a spirally arranged water-blocking strip or a water-blocking strip that is continuously arranged along the direction of water flow and bends back and forth.

[0049] See Figure 3 and Figure 7 An upper baffle 15 extends from the top of the inner wall 131 of the liquid inlet channel 13 away from the liquid inlet channel 13. The upper baffle 15 is strip-shaped. A boss 17 extends further from the downstream end of the upper baffle 15 away from the liquid inlet channel 13, and a drain hole 171 is formed on the boss 17. A water outlet platform 18 extends from the lower part of the inner wall 131 of the liquid inlet channel 13 away from the liquid inlet channel 13. The water outlet platform 18 is strip-shaped and located below the upper baffle 15 and the boss 17, and is parallel to the upper baffle 15 and the boss 17. A liquid outlet 12 is provided on the water outlet platform 17, and a guide portion 121 is formed at the bottom of the water outlet platform 18. (See [reference]). Figure 2 Furthermore, the outlets 12 are spaced apart along the length of the outlet platform 18. In order to improve the uniformity of water output, in this embodiment, the outlets 12 are evenly distributed along the length of the outlet platform 18. For example... Figure 7 As shown, the vertical projections of the upper partition 15 and the liquid outlet 12 on the horizontal plane do not overlap, that is, the liquid outlet 12 is located diagonally below the upper partition 15. Therefore, it can be concluded that the liquid inlet channel 13 and the liquid outlet 12 are located on both sides of the upper partition 15.

[0050] like Figure 5 and Figure 7As shown, the cover plate 2 has a lower partition 21 extending inward into the liquid distribution chamber 3. The lower partition 21 is located above and parallel to the water outlet platform 18. The vertical projections of the lower partition 21 and the liquid outlet 12 on the horizontal plane overlap. In this embodiment, the orthographic projection of the lower partition 21 on the water outlet platform 18 completely covers the liquid outlet 12. Furthermore, the vertical projections of the lower partition 21 and the upper partition 15 on the horizontal plane do not overlap, thus forming a water flow channel between the lower partition 21 and the inner wall 131 of the liquid inlet channel 13.

[0051] from Figure 7 As indicated by the arrow, the water flowing from the inlet 11 into the inlet channel 13 overflows from the upper baffle 15 inside the inlet channel 13. At this time, the water pressure is relatively high. The water overflowing from the upper baffle 15 will not flow directly into the lower distribution chamber 32 below the upper baffle 15. Instead, it will first rush to the upper distribution chamber 31. The water entering the upper distribution chamber 31 will rush to the inner wall 26 of the cover plate and then flow back to the lower baffle 21. After passing through the lower baffle 21, it will flow into the lower distribution chamber 32 and finally flow out from the outlet 12. Therefore, it can be seen that the water overflowing from the inlet channel 13 is released after collision and multiple meandering flows, which can slow down the water outflow rate of the outlet 12 and avoid the phenomenon that a large amount of water overflows at the downstream end of the inlet channel 13 while no water overflows at the upstream end. This relatively improves the uniformity of water outflow from the outlet 12, and ultimately makes the overflow amount at the downstream end of the inlet channel 13 slightly greater than the overflow amount at the upstream end, thus meeting the water outflow requirements of the distributor.

[0052] like Figure 2 , Figure 4 , 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 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 23 extending inward. After the cover plate 2 is installed on the housing 1, the support block 23 is supported on the water outlet platform 18 of the housing 1, which serves to prevent loosening.

[0053] like Figure 8 and Figure 9As 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.

[0054] Combination Figure 1 It is known that the cover plate 2 of the liquid distributor has an arc-shaped mounting plate 25, which is adapted to the upper liquid collection pipe 41 of the condenser 4. The arc-shaped mounting plate 25 has a wire hole 251. During installation, the arc-shaped mounting plate 25 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.

[0055] After the liquid distributor is installed, the downstream end of the liquid inlet channel 13 of the liquid distributor corresponds to the first end of the upper liquid collection pipe 41, and the upstream end of the liquid inlet channel 13 corresponds to the second end of the upper liquid collection pipe 41. Furthermore, the first end of the upper liquid collection pipe 41 and the first end of the lower liquid collection pipe 42 are located on the same side. As can be seen from the liquid distributor structure of this embodiment, the water output of the outlet 13 in the area corresponding to the downstream end of the liquid inlet channel 13 is relatively large, while the water output of the outlet 12 in the area corresponding to the upstream end of the liquid inlet channel 13 is relatively small. Therefore, by placing the downstream end of the liquid inlet channel 13 of the liquid distributor on the same side as the refrigerant inlet end of the condenser 4, the refrigerant inlet end of the condenser 4 can be dissipated more effectively, thereby improving the overall heat dissipation effect of the condenser.

[0056] 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.

Claims

1. A liquid distributor, comprising a housing (1) and a cover plate (2) mounted on the housing, the cover plate (2) and the housing (1) together forming 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: An inlet channel (13) communicating with the inlet port (11) is formed on the housing (1) or the cover plate (2). The inner wall surface of the inlet channel (13) has an uneven and rough structure. The top of the inner sidewall (131) of the inlet channel (13) bends and extends towards the side where the outlet is located to form an upper partition (15). The outlet (12) is located below the upper partition (15). The housing (1) and the cover plate (2) are both elongated. The inlet channel (13) is provided on the housing (1) and arranged along the length of the housing (1). The upper partition (15) has a boss (17) extending towards the side where the outlet is located at the downstream end of the inlet channel. A drain hole (171) is opened on the boss (17).

2. The liquid distributor according to claim 1, characterized in that: The surface roughness Ra of the inner wall of the liquid inlet channel (13) is ≥1.6 micrometers.

3. 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.

4. The liquid distributor according to claim 3, characterized in that: The liquid inlet (11) is located at the end of the lower housing, and the liquid inlet (11) is perpendicular to the water flow direction inside the liquid inlet channel (13).

5. The liquid distributor according to claim 4, characterized in that: The inner wall (131) of the liquid inlet channel (13) has an upwardly extending baffle (16) corresponding to the position of the liquid inlet.

6. The liquid distributor according to claim 1, characterized in that: The lower part of the inner wall (131) of the liquid inlet channel (13) extends away from the liquid inlet channel to form a water outlet platform (18). The water outlet platform (18) is strip-shaped, and the liquid outlet (12) is provided on the water outlet platform (18) and is distributed at intervals along the length of the water outlet platform (18).

7. The liquid distributor according to claim 6, characterized in that: The vertical projections of the upper partition (15) and the liquid outlet (12) on the horizontal plane have no overlapping parts.

8. The liquid distributor according to claim 6, characterized in that: The liquid outlets (12) are evenly distributed along the length of the water outlet platform (18).

9. The liquid distributor according to claim 6, characterized in that: The outlet (12) has a guide section (121) formed at the bottom of the outlet platform (18).

10. The liquid distributor according to claim 6, characterized in that: The cover plate (2) has a lower partition (21) extending inward into the liquid distribution chamber (3), the lower partition (21) being located above the water outlet platform (18).

11. The liquid distributor according to claim 10, characterized in that: The lower partition (21) and the liquid outlet (12) have overlapping vertical projections on the horizontal plane.

12. The liquid distributor according to claim 10, characterized in that: The lower partition (21) and the upper partition (15) have no overlapping vertical projections on the horizontal plane.

13. The liquid distributor according to claim 6, characterized in that: The bottom of the cover plate (2) has outwardly extending positioning blocks (22), which are spaced apart along the length of the cover plate (2).

14. The liquid distributor according to claim 13, characterized in that: The bottom of the cover plate (2) has an inwardly extending support block (23) which is supported on the water outlet platform (18).

15. The liquid distributor according to claim 1 or 2, characterized in that: The cover plate (2) is detachably connected to the housing (1).

16. 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), the first end of the lower liquid collecting pipe (42) being a refrigerant inlet end, and the second end of the lower liquid collecting pipe (42) being a refrigerant outlet end, characterized in that: The liquid distributor according to claim 13 is installed on the upper liquid collection pipe (41), and the downstream end of the liquid inlet channel (13) corresponds to the first end of the upper liquid collection pipe (41), the upstream end of the liquid inlet channel (13) corresponds to the second end of the upper liquid collection pipe (41), and the first end of the upper liquid collection pipe (41) and the first end of the lower liquid collection pipe (42) are located on the same side.

17. The condenser heat dissipation structure according to claim 16, characterized in that: 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), and the liquid outlet (12) of the liquid distributor is located obliquely below the positioning block (22) and corresponds to the gap between adjacent flat tubes (43).

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