An air-water cooler with easy-to-replace filter screen

Abstract

This utility model relates to an air-water cooler with an easy-to-replace filter screen, belonging to the field of frequency converter heat dissipation technology. It includes a housing, water pipes and condenser pipes located within the housing, and a booster fan pipe at the top of the housing. The booster fan pipe houses a filter plate assembly, consisting of a main frame and a detachable filter screen frame, with the filter screen laid on the frame. A disassembly port is provided on the side wall of the booster fan pipe, and an external filter plate disassembly assembly is provided: symmetrical side frames have limiting grooves, and the two ends of a horizontal plate are slidably connected to the limiting grooves and fix the main frame; a fixing rod is provided on one side and slidably connected to the horizontal plate, while a threaded shaft driven by a motor is threadedly connected to the horizontal plate on the other side, enabling the filter plate assembly to slide out electrically. The filter screen frame is fixed by inserting a square seat into a square seat hole, and a built-in locking mechanism allows for quick unlocking and separation. This utility model solves the problems of cumbersome disassembly and difficult maintenance of filter components, significantly improving cleaning efficiency and cooling stability.

Description

Technical Field

[0001] This utility model relates to the field of frequency converters, and in particular to an air-water cooler with an easy-to-replace filter screen. Background Technology

[0002] Inverters are widely used in many fields such as industrial production and power systems, and their normal operation is crucial to ensuring stable equipment operation. As a key heat dissipation component of inverters, the air-water cooler effectively controls the heat generated during inverter operation, preventing performance degradation or even damage due to excessive temperature. However, existing inverter air-water coolers have several problems that urgently need to be addressed in practical use. Because the upper end of the cooler's booster fan duct is fixedly connected to the air duct, regular cleaning requires significant time and effort from disassembling multiple related components to remove the filter assembly. This process is not only cumbersome but also prone to component damage due to frequent disassembly, increasing maintenance costs. Furthermore, due to the inconvenience of cleaning, staff often cannot clean the filter plates in a timely manner, leading to the accumulation of dust and impurities. This increases ventilation resistance, significantly reduces the cooler's ventilation performance and cooling efficiency, and consequently affects the normal operation and lifespan of the inverter.

[0003] Therefore, it is necessary to provide a new type of air-water cooler for frequency converters to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an air-water cooler with an easy-to-replace filter screen.

[0005] This utility model provides an air-water cooler with an easy-to-replace filter screen, comprising a housing, a water pipe inside the housing, a water outlet on the upper side of the housing, a water inlet on the lower side of the housing, a condenser pipe on one side of the water pipe, a booster fan pipe at the top of the housing, and a filter plate assembly inside the booster fan pipe. The filter plate assembly includes a main frame and a filter screen frame. The outer side of the main frame is in close contact with the inner wall of the booster fan pipe. The filter screen frame is installed on the main frame, and a filter screen is laid on the filter screen frame. A filter plate disassembly assembly is provided on the outer side wall of the booster fan pipe. The components include a disassembly port, side frames, and a horizontal plate. The disassembly port is located on the side wall of the booster fan duct, and its position is flush with the filter plate assembly. The shape of the disassembly port opening is adapted to the side of the filter plate assembly. The filter plate assembly is slidably connected to the disassembly port. The side frames are symmetrically arranged on the left and right sides of the disassembly port and are perpendicular to the outer side of the booster fan duct. The side frames have limit grooves along their length. The horizontal plate is horizontally arranged on the outside of the booster fan duct and is fixedly connected to the main frame. The left and right ends of the horizontal plate extend into the left and right limit grooves, respectively, and the left and right ends of the horizontal plate are slidably connected to the limit grooves.

[0006] Furthermore, the two ends of the side frame are vertically connected to side frame support plates, and the two side frame support plates form a C-shaped structure with the side frame. One end of the horizontal plate is provided with a through hole, and a fixing rod is provided between the two side frame support plates. The fixing rod is parallel to the side frame, passes through the through hole, and is slidably connected to the horizontal plate.

[0007] Furthermore, a threaded shaft is provided between the two side support plates. The threaded shaft is parallel to the side support. One end of the horizontal plate is provided with a threaded hole, which is threadedly connected to the threaded shaft. A motor is connected to the end of the threaded shaft.

[0008] Furthermore, the filter frame is installed on the upper part of the main frame, and the lower side of the filter frame is completely attached to the upper side of the main frame. The filter plate assembly is provided with a filter frame fixing mechanism, which includes a square seat and a square seat hole. The square seat is a cubic structure and is located on the upper part of the main frame. The filter frame is provided with a square seat hole, and the square seat is adapted to the square seat hole. The square seat is inserted into the square seat hole.

[0009] Furthermore, the filter plate assembly is provided with a locking mechanism, which includes an inner square tube, a square tube mounting groove, a steel cable, and a pull ring. The square tube mounting groove is opened on the filter screen frame, and is located on one side of the square seat hole but does not communicate with it. The square seat has a locking slot on the side near the square tube mounting groove. A locking rod passage hole is opened between the square tube mounting groove and the square seat hole. The inner square tube is installed in the square tube mounting groove. The inner square tube includes a stop block, a tube body, a pull plate, a spring, and a locking rod. The stop block is located in the square tube mounting groove away from the square seat. On one side of the hole, the stop block has a through hole, and a cylinder is connected to the stop block. A pull plate is slidably connected inside the cylinder. A locking rod is provided on the side of the pull plate away from the stop block. The locking rod extends out of the locking rod through the hole, and the front end of the locking rod is inserted into the locking hole. The front end of the locking rod is slidably connected to the locking hole. A spring is provided between the pull plate and the stop block. One end of a steel cable is connected to the pull plate facing the stop block. The steel cable passes through the through hole on the stop block and exits the inner square cylinder. The filter frame has a channel for the steel cable to pass through. The steel cable is slidably connected to the channel. The other end of the steel cable passes through the filter frame and is connected to a pull ring.

[0010] Furthermore, the main frame is provided with a short alignment shaft, and the filter frame is provided with an alignment hole. The short alignment shaft is adapted to the alignment hole and is inserted into the alignment hole.

[0011] Furthermore, the booster fan pipe is provided with a limiting baffle, which is located on the left and right sides of the inner wall of the booster fan pipe and is parallel to the side frame. The upper part of the limiting baffle is connected to the main frame.

[0012] Compared with existing technologies, the advantages of this invention are as follows: This invention achieves automatic sliding out of the filter plate assembly through a motor drive. The drive shaft drives the horizontal plate to slide stably relative to the fixed rod and side frame, allowing the filter plate assembly to slide smoothly out of the booster fan pipe. Since the upper end of the booster fan pipe is fixedly connected to the air duct, this design allows workers to easily perform regular cleaning of the filter plate assembly without complex disassembly operations. This not only greatly saves cleaning time and labor costs but also promptly removes accumulated dust and impurities from the filter plate assembly, ensuring its filtration effect. This, in turn, guarantees the ventilation performance and cooling efficiency of the air-water cooler, enabling the frequency converter to operate in a stable temperature environment.

[0013] This invention features a unique filter frame disassembly structure that enables automatic and quick removal of the filter frame. Pulling the pull ring causes the steel cable to slide under spring pressure, thereby disengaging the locking lever from the square base and releasing the filter frame from its locking mechanism. Workers can then directly grasp the filter frame to separate it from the main frame without additional tools or complicated procedures. This quick disassembly method allows for easier and more thorough cleaning of the filter frame, preventing issues with air quality and filtration efficiency caused by inadequate or untimely cleaning. Simultaneously, it improves cleaning efficiency, enabling cleaning to be completed in a shorter time, reducing cooler downtime for filter cleaning, and ensuring the continuous and stable operation of the inverter air-water cooler. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a disassembly diagram of the present invention;

[0016] Figure 3 This is a partial enlarged view of section A of the present invention;

[0017] Figure 4 This is a schematic diagram of the built-in square tube structure of this utility model;

[0018] In the diagram, 1-shell, 2-water pipe, 201-outlet, 202-inlet, 203-condenser pipe, 3-boost fan pipe, 4-filter plate assembly, 401-main frame, 402-filter screen frame, 403-filter screen, 501-square seat, 502-square seat hole, 503-lock, 6-inner square tube, 601-stop block, 602-tube body, 603-pull plate, 604-spring, 605-clamp rod, 606-square tube mounting slot, 607-steel cable, 608-pull ring, 7-disassembly port, 8-side frame, 801-limiting groove, 802-side frame support plate, 9-horizontal plate, 10-fixing rod, 11-threaded shaft, 1101-threaded hole, 1102-motor, 12-alignment short shaft, 1201-alignment hole, 13-limiting baffle. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0020] like Figure 1-4 As shown, an air-water cooler with easy filter replacement includes a housing 1, a water pipe 2 inside the housing 1, a water outlet 201 on the upper side of the housing 1, a water inlet 202 on the lower side of the housing 1, a condenser pipe 203 on one side of the water pipe 2, the condenser pipe 203 being arranged around the water pipe 2 in a conventional manner inside the housing 1, a booster fan pipe 3 at the top of the housing 1, a filter plate assembly 4 inside the booster fan pipe 3, the filter plate assembly 4 including a main frame 401 and a filter screen frame 402, the outer side of the main frame 401 being in close contact with the inner wall of the booster fan pipe 3, the filter screen frame 402 being installed on the main frame 401, the filter screen 403 being laid on the filter screen frame 402, the filter screen frame 402 being separable from the main frame 401, allowing workers to easily and quickly remove the filter screen frame 402 for cleaning. The filter frame 402 is installed on the upper part of the main frame 401. The filter plate assembly 4 is provided with a filter frame 402 fixing mechanism. The filter frame 402 fixing mechanism includes a square seat 501 and a square seat hole 502. The square seat 501 has a cubic structure and is located on the upper part of the main frame 401. The filter frame 402 is provided with a square seat hole 502. The square seat 501 is adapted to the square seat hole 502 and is inserted into the square seat hole 502.

[0021] The filter plate assembly 4 is equipped with a locking mechanism, which includes an internal square tube 6, a square tube mounting groove 606, a steel cable 607, and a pull ring 608. The square tube mounting groove 606 is located on the filter screen frame 402 and is located on one side of the square seat hole 502 but is not connected to the square seat hole 502. A locking slot 503 is provided on the side of the square seat 501 near the square tube mounting groove 606. A through hole for a locking rod 605 is provided between the square tube mounting groove 606 and the square seat hole 502. The internal square tube 6 is installed inside the square tube mounting groove 606. The internal square tube 6 includes a stop block 601, a tube body 602, a pull plate 603, a spring 604, and a locking rod 605. The stop block 601 is located inside the square tube mounting groove 606 on the side away from the square seat hole 502. A through hole is provided on the 601. A cylinder body is connected to one side of the stop 601. A pull plate 603 is slidably connected inside the cylinder body. A locking rod 605 is provided on the side of the pull plate 603 away from the stop 601. The locking rod 605 extends out of the locking rod 605 through hole. The front end of the locking rod 605 is inserted into the locking port 503. The front end of the locking rod 605 is slidably connected to the locking port 503. A spring 604 is provided between the pull plate 603 and the stop 601. One end of a steel cable 607 is connected to the side of the pull plate 603 facing the stop 601. The steel cable 607 passes through the through hole on the stop 601 and exits the built-in square cylinder 6. A channel for the steel cable 607 to pass through is provided in the filter frame 402. The steel cable 607 is slidably connected to the channel. The other end of the steel cable 607 passes out of the filter frame 402 and is connected to a pull ring 608 at the end. Pulling the two pull rings 608 causes the two steel cables 607 to slide along the channels inside the filter frame 402. One end of each steel cable 607 drives the two pull plates 603 to slide inside the cylinder body 602 of the two built-in square tubes 6. Both springs 604 undergo elastic deformation. The two pull plates 603 drive the two locking rods 605 to slide away from the locking holes 503 in the two square seats 501, thus releasing the locking of the two square seats 501.

[0022] A filter plate disassembly assembly is provided on the outer side wall of the booster fan pipe 3. The filter plate disassembly assembly includes a disassembly port 7, a side frame 8, and a horizontal plate 9. The disassembly port 7 is opened on the side wall of the booster fan pipe 3 and is flush with the filter plate assembly 4. The opening shape of the disassembly port 7 is adapted to the side of the filter plate assembly 4. The filter plate assembly 4 is slidably connected to the disassembly port 7. The side frame 8 is symmetrically arranged on the left and right sides of the disassembly port 7 and is perpendicular to the outer side of the booster fan pipe 3. The side frame 8 has a limiting groove 801 along its length. The horizontal plate 9 is horizontally arranged on the outside of the booster fan pipe 3 and is fixedly connected to the main frame 401. The left and right ends of the horizontal plate 9 extend into the left and right limiting grooves 801 respectively. The left and right ends of the horizontal plate 9 are slidably connected to the limiting grooves 801 so that the movement of the horizontal plate 9 can be limited to ensure its stable movement. Side frame 8 has side frame support plates 802 vertically connected to both ends of the side frame 8. The two side frame support plates 802 form a C-shaped structure with the side frame 8. One end of the horizontal plate 9 has a through hole. A fixing rod 10 is provided between the two side frame support plates 802 on one side of the horizontal plate 9. The fixing rod 10 is parallel to the side frame 8 and passes through the through hole. The fixing rod 10 is slidably connected to the horizontal plate 9. A threaded shaft 11 is provided between the two side frame support plates 802 on the other side. The threaded shaft 11 is parallel to the side frame 8. One end of the horizontal plate 9 has a threaded hole 1101. The threaded hole 1101 is threadedly connected to the threaded shaft 11. A motor 1102 is connected to the end of the threaded shaft 11.

[0023] In the specific implementation process, such as Figure 1 and Figure 2 As shown, a fixing rod 10 is provided between the two side support plates 802 of one side of the horizontal plate 9, and a threaded shaft 11 is provided between the two side support plates 802 of the other side. One end of the horizontal plate 9 has a threaded opening, and one end of the horizontal plate 9 is threadedly connected to the threaded shaft 11. The other end of the horizontal plate 9 has a through hole, and the other end of the horizontal plate 9 is slidably connected to the fixing rod 10. The output end of the motor 1102 drives the threaded shaft 11 to rotate, causing the horizontal plate 9 to slide stably relative to the fixing rod 10, so that it can drive the filter plate assembly 4 to slide out through the booster fan pipe 3. Since the upper end of the booster fan pipe 3 is fixedly connected to the air duct, this design makes it convenient for staff to clean it regularly.

[0024] The main frame 401 has two alignment short shafts 12, and the filter frame 402 has two alignment holes 1201. The alignment short shafts 12 are adapted to the alignment holes 1201 and are inserted into the alignment holes 1201. By inserting the two alignment holes 1201 on the filter frame 402 into the two alignment short shafts 12 on the main frame 401, and sliding the two square seats 501 into the two square seat holes 502, the filter frame 402 can be quickly assembled and installed. The booster fan pipe 3 is provided with a limiting baffle 13. The limiting baffle 13 is located on the left and right sides of the inner wall of the booster fan pipe 3 and is parallel to the side frame 8. The upper part of the limiting baffle 13 overlaps the main frame 401 to prevent the main frame 401 from vertically displacing within the booster fan pipe 3.

[0025] The working principle of the air-water cooler for the frequency converter provided by this utility model is as follows: When the filter plate group 4 needs to be cleaned regularly, the motor 1102 is started so that its output end drives the threaded shaft 11 to rotate, which drives the horizontal plate 9 to slide stably relative to the fixed rod 10. The horizontal plate 9 slides relative to the two side frames 8, so that the filter plate group 4 can slide out of the booster fan pipe 3. Since the upper end of the booster fan pipe 3 is fixedly connected to the air duct, it is convenient for the staff to clean it regularly.

[0026] Pulling the two pull rings 608 causes the two steel cables 607 to slide. One end of each steel cable 607 drives the two pull plates 603 to slide relative to the inside of the two built-in square tubes 6. Both springs 604 undergo elastic deformation. The two pull plates 603 drive the two locking rods 605 to slide away from the locking holes 503 in the two square seats 501, releasing the locking of the two square seats 501. This allows the filter frame 402 to be directly engaged, causing it to slide and separate from the main frame 401. This enables the filter frame 402 to be automatically and quickly removed, facilitating thorough cleaning by the staff.

Claims

1. An air-water cooler with an easy-to-replace filter screen, characterized in that, Includes a housing (1), inside which is a water pipe (2), with an outlet (201) on the upper side of the housing (1) and an inlet (202) on the lower side of the housing (1), a condenser pipe (203) on one side of the water pipe (2), a booster fan pipe (3) at the top of the housing (1), and a filter plate assembly (4) inside the booster fan pipe (3), the filter plate assembly (4) including a main frame (401) and a filter screen frame (402), the outer side of the main frame (401) being tightly attached to the inner wall of the booster fan pipe (3), the filter screen frame (402) being installed on the main frame (401), and a filter screen (403) being laid on the filter screen frame (402), and a filter plate disassembly assembly on the outer side wall of the booster fan pipe (3), the filter plate disassembly assembly including a disassembly port ( 7) Side frame (8) and horizontal plate (9), disassembly port (7) is opened on the side wall of the booster fan pipe (3), the position of disassembly port (7) is flush with the filter plate group (4), the opening shape of disassembly port (7) is adapted to the side of the filter plate group (4), the filter plate group (4) is slidably connected to the disassembly port (7), the side frame (8) is symmetrically arranged on the left and right sides of the disassembly port (7) and perpendicular to the outer side of the booster fan pipe (3), the side frame (8) is provided with a limiting groove (801) along the length direction, the horizontal plate (9) is horizontally arranged on the outside of the booster fan pipe (3), the horizontal plate (9) is fixedly connected to the main frame (401), the left and right ends of the horizontal plate (9) extend into the left and right limiting grooves (801) respectively, and the left and right ends of the horizontal plate (9) are slidably connected to the limiting grooves (801).

2. The air-water cooler with an easily replaceable filter screen according to claim 1, characterized in that, The side frame (8) is vertically connected to two side frame support plates (802) at both ends. The two side frame support plates (802) and the side frame (8) form a C-shaped structure. One end of the horizontal plate (9) is provided with a through hole. A fixing rod (10) is provided between the two side frame support plates (802). The fixing rod (10) is parallel to the side frame (8). The fixing rod (10) passes through the through hole and is slidably connected to the horizontal plate (9).

3. The air-water cooler with an easily replaceable filter screen according to claim 2, characterized in that, A threaded shaft (11) is provided between the two side support plates (802). The threaded shaft (11) is parallel to the side frame (8). A threaded hole (1101) is provided at one end of the horizontal plate (9). The threaded hole (1101) is threadedly connected to the threaded shaft (11). A motor (1102) is connected to the end of the threaded shaft (11).

4. The air-water cooler with an easily replaceable filter screen according to claim 3, characterized in that, The filter frame (402) is installed on the upper part of the main frame (401), and the lower side of the filter frame (402) is completely attached to the upper side of the main frame (401). The filter plate assembly (4) is provided with a filter frame (402) fixing mechanism. The filter frame (402) fixing mechanism includes a square seat (501) and a square seat hole (502). The square seat (501) is a cubic structure and is located on the upper part of the main frame (401). The filter frame (402) is provided with a square seat hole (502). The square seat (501) and the square seat hole (502) are adapted to each other and the square seat (501) is inserted into the square seat hole (502).

5. A water-air cooler with an easily replaceable filter screen according to claim 4, characterized in that, The filter plate assembly (4) is provided with a locking mechanism, which includes an internal square tube (6), a square tube mounting groove (606), a steel cable (607), and a pull ring (608). The square tube mounting groove (606) is opened on the filter screen frame (402) and is located on one side of the square seat hole (502) but is not connected to the square seat hole (502). The square seat (501) is provided with a locking slot on the side near the square tube mounting groove (606). (503) A through hole for a locking rod (605) is provided between the square tube mounting groove (606) and the square seat hole (502). An inner square tube (6) is installed in the square tube mounting groove (606). The inner square tube (6) includes a stop block (601), a tube body (602), a pull plate (603), a spring (604), and a locking rod (605). The stop block (601) is located in the square tube mounting groove (606) on the side away from the square seat hole (502). The block (601) has a through hole, and a cylinder is connected to one side of the block (601). A pull plate (603) is slidably connected inside the cylinder. A locking rod (605) is provided on the side of the pull plate (603) away from the block (601). The locking rod (605) extends out of the hole and is inserted into the locking port (503). The front end of the locking rod (605) is slidably connected to the locking port (503). The pull plate (603) and the block (601) are connected. A spring (604) is provided between the two sides. A steel cable (607) is connected to the side of the pull plate (603) facing the stop block (601). The steel cable (607) passes through the through hole on the stop block (601) and exits the inner square tube (6). The filter frame (402) is provided with a channel for the steel cable (607) to pass through. The steel cable (607) is slidably connected to the channel. The other end of the steel cable (607) passes through the filter frame (402) and is connected to a pull ring (608).

6. A water-air cooler with an easily replaceable filter screen according to claim 5, characterized in that, The main frame (401) is provided with a short alignment shaft (12), and the filter frame (402) is provided with an alignment hole (1201). The short alignment shaft (12) is adapted to the alignment hole (1201) and is inserted into the alignment hole (1201).

7. A water-air cooler with an easily replaceable filter screen according to claim 6, characterized in that, The booster fan pipe (3) is provided with a limiting baffle (13). The limiting baffle (13) is located on the left and right sides of the inner wall of the booster fan pipe (3) and is parallel to the side frame (8). The upper part of the limiting baffle (13) is connected to the main frame (401).

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