Air cooler with defrosting mechanism

Abstract

The air cooler with the defrosting mechanism comprises a machine cabinet and further comprises a water pan installed at the bottom of the machine cabinet, and the water pan is provided with a water receiving groove and a water outlet communicated with the water receiving groove; the defrosting assembly comprises a first coil pipe and a second coil pipe, the inlet end of the first coil pipe and the inlet end of the second coil pipe are connected with a heating medium inlet pipe, and the outlet end of the first coil pipe and the outlet end of the second coil pipe are connected with a heating medium outlet pipe; wherein the second coil pipe is arranged on the periphery of the first coil pipe, the second coil pipe is higher than the first coil pipe in the vertical direction, and the first coil pipe is installed on the water receiving tank. The defrosting range in the water pan is expanded by staggering the second coil pipe relative to the first coil pipe in the vertical direction and the transverse direction, and the defrosting efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of air coolers, and in particular to an air cooler with a defrosting mechanism. Background Technology

[0002] The defrosting methods of existing air coolers generally include electric heating and heat transfer medium. In addition to defrosting the heat exchange components inside the machine, the bottom water tray also needs to be defrosted. This is because the condensate flowing down from the machine is also prone to frost and condensation after entering the water tray.

[0003] For example, the utility model patent with announcement number CN216977300U discloses "a cold air blower for cold storage", which has a disc-shaped electric heating wire installed in the water receiving pan, and performs defrosting operation in the water receiving pan by working the electric heating wire.

[0004] For example, the utility model patent with publication number CN220206111U discloses "a simple and efficient novel plate-type hot air defrosting structure for air coolers," such as... Figure 1 As shown, a coil is installed on the bottom plate of the water receiving pan. The heat medium is generally hot fluorine. The flow of the heat medium in the coil performs defrosting operation in the water receiving pan.

[0005] However, regardless of whether electric heating or coil heating is used, the heating range is limited, resulting in relatively low defrosting efficiency. Utility Model Content

[0006] In order to increase the heating range within the water tray and improve defrosting efficiency, this application provides a cold air blower with a defrosting mechanism.

[0007] The air cooler with a defrosting mechanism provided in this application adopts the following technical solution:

[0008] An air cooler with a defrosting mechanism includes a cabinet and further includes:

[0009] A drip tray, installed at the bottom of the server rack, has a drip groove and a drain outlet connecting to the drip groove; and

[0010] A defrosting assembly, comprising a first coil and a second coil, wherein the inlet ends of the first coil and the second coil are connected to heat medium inlet pipes, and the outlet ends of the first coil and the second coil are connected to heat medium outlet pipes.

[0011] The second coil is placed around the first coil and is vertically higher than the first coil. The first coil is installed on the water receiving tank.

[0012] By adopting the above technical solution, the heating medium of the first coil and the second coil are connected in the water tank for heating and defrosting. The second coil is placed outside the first coil to expand the defrosting range in the horizontal space. At the same time, the second coil is also staggered from the first coil in the vertical direction to expand the defrosting range in the vertical direction, thereby improving the defrosting efficiency.

[0013] Preferred options also include:

[0014] The first manifold connects the outlet end of the heat medium inlet pipe to the inlet end of the first coil and the second coil.

[0015] The second manifold connects the inlet end of the heat medium outlet pipe to the outlet ends of the first and second coils; and

[0016] Several supporting components are installed on the side wall of the water receiving tank and arranged at intervals;

[0017] The second coil can rotate relative to the first manifold and the second manifold, and the second coil can be mounted on a support.

[0018] By adopting the above technical solution, the first manifold and the second manifold can combine the entry and exit of the heat medium. The heat medium is brought into the first manifold from the heat medium inlet pipe. The first manifold and the first coil are connected to the second coil, so that the heat medium enters into the first coil and the second coil simultaneously, flows to the second manifold, and finally flows out through the heat medium outlet pipe. The two ends of the second coil are rotatably connected to the first manifold and the second manifold, allowing the tilt angle of the second coil to be adjusted with respect to the horizontal plane, which is suitable for defrosting installations with water trays of different depths.

[0019] Preferably, it further includes a rotary joint for connecting the first coil to the first manifold and the second manifold, wherein both the first manifold and the second manifold have mounting grooves with an opening on one side, and the rotary joint includes:

[0020] Several rolling bearings are installed in the mounting slot;

[0021] A front retaining ring, one end of which abuts against one side of the rolling bearing;

[0022] A surface bearing, located on the other side of a rolling bearing;

[0023] A rear retaining ring, one end of which abuts against one end face of a planar bearing; and

[0024] The gland is threaded to the open ends of the first manifold and the second manifold, and the other end of the rear retaining ring abuts against the gland.

[0025] The second coil is rotatably connected to a rotary joint at both ends, and each end of the second coil has a limiting ring. One end face of the rolling bearing and the planar bearing respectively abuts against the two end faces of the limiting ring.

[0026] By adopting the above technical solution, a rotary joint is connected to one end of the first manifold and the second manifold, and both ends of the second coil are rotatably connected to the rotary joint, thereby realizing the rotatable connection between the second coil and the first and second manifolds respectively. When the second coil rotates, it achieves relative rotation with the rotary joint through rolling bearings. The front and rear retaining rings limit the rolling bearings and the plane bearings on one side, and the limiting ring on the second coil limits the rolling bearings and the plane bearings on the other side, while also limiting the axial movement of the second coil on the rotary joint.

[0027] Preferably, the rotary joint further includes a sealing ring, the two ends of which abut against the side wall of the mounting groove and the end face of the front retaining ring, respectively, and the outer peripheral wall of the second coil abuts against the inner ring of the sealing ring.

[0028] By adopting the above technical solution, the sealing ring improves the sealing performance between the second coil and the first and second manifolds.

[0029] Preferably, the sealing ring has a first sealing ring on its inner ring and a second sealing ring on its outer ring. The first sealing ring abuts against the outer peripheral wall of the first coil, and the second sealing ring abuts against the inner peripheral wall of the mounting groove.

[0030] By adopting the above technical solution, the setting of the first sealing ring and the second sealing ring can further improve the sealing performance between the second coil and the first manifold and the second manifold.

[0031] Preferably, the support member includes:

[0032] Support, installed on the side wall of the water receiving tank;

[0033] A support block is rotatably connected to a support, and the support block has a support surface;

[0034] A limiting block is connected to one side of the support block, and the limiting block can abut against the support to inhibit the rotation of the support block in one direction;

[0035] One side of the first coil can be mounted on a support surface.

[0036] By adopting the above technical solution, the second coil can be mounted on the support surface of the support block to limit one side of the second coil in the vertical direction. The support block is configured to be rotatably connected to the support, so that when the second coil rotates upward from below the support block around the rotation point, the support block can be opened. After the support block is rotated and reset, the rotation of the support block is limited by the contact between the limiting block and the support.

[0037] Preferably, the support further includes an elastic element that can always force the limiting block to have a tendency to move toward the support side.

[0038] By adopting the above technical solution, the elastic element allows the second coil to maintain a relatively static state on the support block, improving the stability of the support. Simultaneously, when the second coil rotates upwards from below the support block to open it, it can automatically reset through the drive of the elastic element.

[0039] Preferably, the support block has an arc-shaped guide surface, and the second coil can compress the arc-shaped guide surface to push the support block to rotate relative to the support.

[0040] By adopting the above technical solution, when the support block rotates from the bottom to the top, the arc-shaped guide surface can be squeezed well with the second coil, causing the support block to rotate and reducing the occurrence of jamming.

[0041] Preferably, multiple support members are arranged at intervals in the vertical direction of the water receiving tank.

[0042] By adopting the above technical solution and setting multiple support components, the tilt angle between the second coil and the horizontal plane can be adjusted more flexibly, making it more suitable for applications under different defrosting conditions.

[0043] Preferably, it also includes multiple pipe clamps, which are fastened to the first coil and fixed to the bottom of the water receiving tank by fasteners.

[0044] By adopting the above technical solution, the pipe clamp can reduce the movement of the first coil, and the pipe clamp is fixed to the water receiving tank by fasteners.

[0045] In summary, this application includes at least one of the following beneficial technical effects:

[0046] 1. By offsetting the position of the second coil relative to the first coil in the vertical and horizontal directions, the defrosting range within the water receiving tray is expanded, thereby improving defrosting efficiency;

[0047] 2. By rotatably connecting one end of the second coil to the first manifold and the second manifold respectively, the tilt angle of the second coil with respect to the horizontal plane can be adjusted. Combined with the setting of the support component, the second coil can be limited at a specific tilt angle, which is applicable to defrosting layouts in water receiving trays of different depths. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the air cooler with a defrosting mechanism in Example 1;

[0049] Figure 2 The first embodiment mainly shows the installation position diagram between the defrosting component and the cabinet;

[0050] Figure 3This is a schematic diagram of the defrosting component in Example 1;

[0051] Figure 4 This is a schematic diagram of the defrosting component installed on the water receiving tray in Example 1;

[0052] Figure 5 This is a schematic diagram showing the connection between the rotary joint, the first coil, the second coil, and the first manifold in Embodiment 1.

[0053] Figure 6 This is a schematic diagram showing the connection between the rotary joint and the first coil and the first manifold in Embodiment 1;

[0054] Figure 7 This is a schematic diagram of the installation of the support member in the water receiving tray in Embodiment 1;

[0055] Figure 8 This is a schematic diagram of the vertical arrangement of the first coil and the second coil in the water receiving tank in Embodiment 1.

[0056] Figure 9 This is a schematic diagram of the vertical arrangement of the first coil and the second coil in the water receiving tank in Embodiment 2;

[0057] Figure 10 This is a schematic diagram of the vertical arrangement of the first coil and the second coil in the water receiving tank in Embodiment 3.

[0058] Explanation of reference numerals in the attached diagram: 1. Cabinet; 2. Water tray; 21. Water trough; 22. Drain outlet; 3. Defrosting assembly; 31. First coil; 32. Second coil; 321. Limiting ring; 33. Heat medium inlet pipe; 34. Heat medium outlet pipe; 35. First manifold; 351. Mounting groove; 36. Second manifold; 37. Control valve; 38. Plug; 4. Rotary joint; 41. Rolling bearing; 42. Front retaining ring; 43. Flat bearing; 44. Rear retaining ring; 45. Pressure cap; 46. Sealing ring; 47. First sealing ring; 48. Second sealing ring; 5. Pipe clamp; 6. Support component; 61. Support; 62. Support block; 621. Support surface; 622. Arc-shaped guide surface; 63. Limiting block; 64. Rotating shaft. Detailed Implementation

[0059] The present application will be further described in detail below with reference to the accompanying drawings.

[0060] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example 1

[0062] Figure 1 and Figure 2 A schematic diagram of an air cooler with a defrosting mechanism is shown, including a cabinet 1, a water tray 2 installed at the bottom of the cabinet 1, and a defrosting assembly 3. The water tray 2 has a water trough 21 with an opening on one side, the opening of which faces the cabinet 1. The water trough 21 can collect liquid media condensed from the surface of the heat exchange components inside the cabinet 1. After the air cooler has been used for a period of time, the liquid media collected in the water trough 21 is prone to freezing and frosting.

[0063] The defrosting assembly 3 includes a heat medium inlet pipe 33 and a heat medium outlet pipe 34 arranged vertically. The heat medium inlet pipe 33 is positioned above the heat medium outlet pipe 34. Both are connected to the cabinet 1 and their ends extend from inside the cabinet 1 to the external heat medium source.

[0064] Combination Figure 3 and Figure 4 The defrosting assembly 3 also includes a first coil 31, a second coil 32, a first manifold 35, and a second manifold 36. The outlet end of the heat medium inlet pipe 33 is connected to the first manifold 35, and the inlet end of the heat medium outlet pipe 34 is connected to the second manifold 36. Both the first coil 31 and the second coil 32 are approximately U-shaped, with the second coil 32 positioned around the first coil 31. The inlet ends of both the first coil 31 and the second coil 32 are connected to the first manifold 35, and the outlet ends of both the first coil 31 and the second coil 32 are connected to the second manifold 36. This allows the heat medium, after being introduced from the heat medium inlet pipe 33, to be diverted through the first manifold 35 to the first coil 31 and the second coil 32, and then converge in the second manifold 36 before finally flowing out through the heat medium outlet pipe 34.

[0065] The first coil 31 and the second coil 32 are arranged in the water receiving tank 21. The first coil 31 is provided with multiple pipe clamps 5. The pipe clamp 5 is a sheet metal part with an arch and plates connected to both sides of the arch. The first coil 31 is fastened into the groove of the arch. The two plates are fixed in the water receiving tank 21 by fasteners, thereby connecting the first coil 31 to the water receiving tank 21.

[0066] Combination Figure 5 and Figure 6The two ends of the second coil 32 are rotatably connected to one end of the first manifold 35 and the second manifold 36, respectively, so that the second coil 32 can swing relative to the water pan 2 around the rotation axis L. The first coil 31 is connected below the outer diameter of the first manifold 35 and the second manifold 36. The second coil 32 is connected to one axial end of the first manifold 35 and the second manifold 36. The other axial end of the first manifold 35 and the second manifold 36 is threaded with a plug 38. Of course, this end can be used as a spare connection end after the plug 38 is removed.

[0067] The two ends of the second coil 32 are rotatably connected to the first manifold 35 and the second manifold 36 respectively via a rotary joint 4. The rotary joint 4 is installed in the mounting groove 351 opened in the first manifold 35 and the second manifold 36. The mounting groove 351 connects the pipes of the first manifold 35 and the second manifold 36. The rotary joint 4 includes a sealing ring 46, a front retaining ring 42, several rolling bearings 41, a flat bearing 43, a rear retaining ring 44 and a pressure cap 45, which are arranged in sequence from the mounting groove 351 towards the opening side and abut against each other.

[0068] The two ends of the sealing ring 46 abut against the side wall of the mounting groove 351 and one end of the front retaining ring 42, respectively. One end of the front retaining ring 42 abuts against the outer ring end face of the rolling bearing 41. One end of the plane bearing 43 abuts against the rear retaining ring 44. One end of the rear retaining ring 44 abuts against the inner wall of the pressure cap 45. The pressure cap 45 is threadedly connected to the ends of the first manifold 35 and the second manifold 36.

[0069] The two ends of the second coil 32 are rotatably connected to the rotary joint 4. Specifically, the sealing ring 46, the front retaining ring 42, several rolling bearings 41 and the plane bearing 43 are all installed on the outer peripheral wall of the second coil 32. The second coil 32 also has a limiting ring 321, which extends outward from the outer peripheral wall of the second coil 32. One inner ring of the rolling bearing 41 and one end face of the plane bearing 43 respectively abut against the limiting ring 321. The limiting ring 321 is used to limit the second coil 32 in the axial direction to the rotary joint 4, thereby reducing the possibility of the coil coming off.

[0070] The sealing ring 46 is a polytetrafluoroethylene (PTFE) sealing ring 46. A first sealing ring 47 is provided on the inner ring of the sealing ring 46, and a second sealing ring 48 is provided on the outer ring of the sealing ring 46. The first sealing ring 47 abuts against the outer peripheral wall of the second coil 32, and the second sealing ring 48 abuts against the inner peripheral wall of the mounting groove 351. The sealing ring 46 improves the sealing performance between the second coil 32 and the first manifold 35 and the second manifold 36.

[0071] Combination Figure 7 and Figure 8The second coil 32 adjusts its tilt angle with the horizontal plane when it swings around the rotation axis L. In this embodiment, one end of the second coil 32 can be mounted on the support member 6, and the second coil 32 is in a horizontal state after being mounted. The support member 6 includes a support 61 mounted on the side wall of the water receiving tank 21 and a support block 62 rotatably connected to the support 61. In this embodiment, two support members 6 are arranged at intervals in the water receiving tank 21, but there can be more than two depending on the size of the water receiving tray 2 and the second coil 32. The support block 62 is rotatably connected to the support 61 through a rotating shaft 64. The support block 62 is provided with limit blocks 63 on both sides. The limit blocks 63 can abut against the upper end surface of the support 61 to inhibit the rotation of the support block 62 toward the support 61.

[0072] The upper surface of the support block 62 is the support surface 621. The second coil 32 can be mounted against the support surface 621. An elastic element is also provided on the rotating shaft 64. This elastic element forces the support block 62 to always have a tendency to rotate towards the support 61, making the contact between the limiting block 63 and the support 61 more stable and reducing the mutual movement between the support block 62 and the second coil 32. The elastic element is a torsion spring, with one end connected to the rotating shaft 64 and the other end connected to the support block 62. Example 2

[0073] See Figure 9 A type of air cooler with a defrosting mechanism differs from Embodiment 1 in that multiple support members 6 are provided vertically on the water receiving tank 21. In this embodiment, two support members 6 are provided vertically on the water receiving tank 21 with a certain distance between them. When the second coil 32 rotates around the rotation axis L, the second coil 32 can squeeze the support block 62 to make it flip upward. In order to reduce jamming, the outer peripheral surface of the support block 62 facing the bottom of the water receiving tank 21 is an arc-shaped guide surface 622. When the second coil 32 moves from below the support block 62 to above the support block 62, the support block 62 flips back to its original position under the action of the elastic member. The limit block 63 abuts against the support 61 to limit the support block 62. In this embodiment, the second coil 32 has an inclined angle A with the horizontal plane, which can be applied to the defrosting condition where the water receiving tank 21 is deep. Example 3

[0074] See Figure 10 A type of air cooler with a defrosting mechanism differs from Embodiment 2 in that the second coil 32 swings downward around the rotation axis L, and the second coil 32 has an inclined angle B with the horizontal plane, which is suitable for defrosting conditions where the water tank 21 is shallow.

[0075] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cold air blower with a defrosting mechanism, comprising a cabinet (1), characterized in that, Also includes: A water tray (2) is installed at the bottom of the cabinet (1). The water tray (2) has a water trough (21) and a drain outlet (22) communicating with the water trough (21); and The defrosting assembly (3) includes a first coil (31) and a second coil (32). The inlet ends of the first coil (31) and the second coil (32) are connected to a heat medium inlet pipe (33), and the outlet ends of the first coil (31) and the second coil (32) are connected to a heat medium outlet pipe (34). The second coil (32) is placed around the first coil (31) and the second coil (32) is higher than the first coil (31) in the vertical direction. The first coil (31) is installed on the water receiving tank (21).

2. The air cooler having defrosting mechanism as claimed in claim 1 wherein, Also includes: The first manifold (35) connects the outlet end of the heat medium inlet pipe (33) and the inlet end of the first coil (31) and the second coil (32); The second manifold (36) connects the inlet end of the heat medium outlet pipe (34) and the outlet ends of the first coil (31) and the second coil (32); as well as Several support members (6) are installed on the side wall of the water receiving tank (21) and arranged at intervals; The second coil (32) can rotate relative to the first manifold (35) and the second manifold (36), and the second coil (32) can be mounted on the support (6).

3. The air cooler having defrosting mechanism as claimed in claim 2 wherein, It also includes a rotary joint (4) for connecting the first coil (31) with the first manifold (35) and the second manifold (36), wherein both the first manifold (35) and the second manifold (36) have mounting grooves (351) with openings on one side, and the rotary joint (4) includes: Several rolling bearings (41) are disposed in the mounting groove (351); A front retaining ring (42), one end of which abuts against one side of the rolling bearing (41); A planar bearing (43) is placed on the other side of the rolling bearing (41); Rear retaining ring (44), one end of which abuts against one end face of the plane bearing (43); and The gland (45) is threaded to the open ends of the first manifold (35) and the second manifold (36), and the other end of the rear retaining ring (44) abuts against the gland (45); The two ends of the second coil (32) are rotatably connected to the rotary joint (4), and each end of the second coil (32) has a limiting ring (321). One end face of the rolling bearing (41) and the plane bearing (43) respectively abuts against the two end faces of the limiting ring (321).

4. The air cooler having defrosting mechanism as claimed in claim 3 wherein, The rotary joint (4) also includes a sealing ring (46), the two ends of which abut against the side wall of the mounting groove (351) and the end face of the front retaining ring (42), respectively, and the outer peripheral wall of the second coil (32) abuts against the inner ring of the sealing ring (46).

5. The air cooler having defrosting mechanism as claimed in claim 4 wherein, The sealing ring (46) has a first sealing ring (47) on its inner ring and a second sealing ring (48) on its outer ring. The first sealing ring (47) abuts against the outer peripheral wall of the first coil (31), and the second sealing ring (48) abuts against the inner peripheral wall of the mounting groove (351).

6. The air cooler having defrosting mechanism as claimed in claim 2 wherein, The support member (6) includes: Support (61) is installed on the side wall of water receiving tank (21); The support block (62) is rotatably connected to the support (61), and the support block (62) has a support surface (621). A limiting block (63) is connected to one side of the support block (62). The limiting block (63) can abut against the support (61) to suppress the rotation of the support block (62) in one direction. One side of the first coil (31) can be mounted on the support surface (621).

7. The air cooler having defrosting mechanism as claimed in claim 6 wherein, The support (6) also includes an elastic element that can always force the limiting block (63) to have a tendency to move toward the support (61).

8. The air cooler having defrosting mechanism as claimed in claim 7 wherein, The support block (62) has an arc-shaped guide surface (622), and the second coil (32) can squeeze the arc-shaped guide surface (622) to push the support block (62) to rotate relative to the support (61).

9. The air cooler having defrosting mechanism as claimed in claim 2 wherein, The support member (6) is arranged in multiple intervals in the vertical direction of the water receiving tank (21).

10. The air cooler having defrosting mechanism as claimed in claim 1 wherein, It also includes multiple pipe clamps (5), which are fastened to the first coil (31) and fixed to the bottom of the water receiving tank (21) by fasteners.

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