Filter assembly and heat pump water heater

Abstract

The utility model discloses a filter assembly and heat pump water heater relates to heat pump equipment technical field, wherein the filter assembly includes plate body, slide rail piece and filter screen subassembly, plate body is equipped with air inlet and is located the through hole of air inlet side, slide rail piece is located the inner side of plate body and is located the both sides of air inlet, slide rail piece is equipped with slide slot, the filter screen subassembly is equipped with the slide slot. The filter screen assembly comprises a filter screen and a screen frame, the filter screen is arranged on the screen frame, the filter screen assembly can be inserted or pulled out along the through hole, and when the filter screen assembly is inserted along the through hole, the filter screen assembly can slide in along the sliding groove so that the filter screen can shield the air inlet. The traditional dismounting mode that the air inlet pipe needs to be dismounted in advance or the machine body needs to be dismounted can be abandoned, maintenance personnel can directly pull out the filter screen assembly from the outer side of the plate body, operation is easy, convenient and rapid, and the filter screen assembly can be conveniently dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pump equipment, in particular to a filtering component and a heat pump water heater. Background Art

[0002] In order to filter the air inhaled from the air inlet of the heat pump water heater, a filter screen capable of blocking the air inlet is generally arranged in the air inlet pipe of the heat pump water heater. During use, the filter screen needs to be disassembled regularly for cleaning. Before disassembling the filter screen of the traditional heat pump water heater, it is necessary to disassemble the body or the air inlet pipe of the heat pump water heater to take out the filter screen, and the operation is complex and inconvenient to disassemble the filter screen. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a filtering component which can facilitate the disassembly of the filter screen.

[0004] The utility model also provides a heat pump water heater with the above filtering component.

[0005] The filtering component according to the first aspect embodiment of the utility model includes:

[0006] A plate body is provided with an air inlet and a through hole on one side of the air inlet;

[0007] A slide rail member is arranged on the inner side of the plate body, and the slide rail member is provided with sliding grooves on both sides of the air inlet;

[0008] A filter screen assembly includes a filter screen and a screen frame, the filter screen is arranged in the screen frame, wherein the filter screen assembly can be inserted into or withdrawn from the sliding groove through the through hole, and when the filter screen assembly is inserted into the sliding groove, the filter screen blocks the air inlet.

[0009] The filtering component according to the embodiment of the utility model has at least the following beneficial effects:

[0010] By arranging a movable filter screen assembly on the plate body, when disassembling the filter screen assembly, maintenance personnel can withdraw the filter screen assembly from the outside of the plate body, so that the filter screen assembly can slide out of the sliding groove, and the filter screen moves from the inner side of the plate body to the outside of the plate body, so that the filter screen does not block the air inlet, and the traditional disassembly method that requires prior disassembly of the air inlet pipe or the body can be abandoned. Maintenance personnel can directly withdraw the filter screen assembly from the outside of the plate body, and the operation is simple, convenient and fast, which can facilitate the disassembly of the filter screen assembly.

[0011] According to some embodiments of the utility model, the filter screen assembly further includes a sealing member connected to one side of the screen frame, and the sealing member is used for sealing the through hole.

[0012] According to some embodiments of the present utility model, the plate body is provided with a groove, the through hole is arranged on the bottom wall of the groove, and at least part of the seal is received in the groove.

[0013] According to some embodiments of the present utility model, a positioning structure is provided between the seal and the plate body, and the positioning structure is used to position the seal in the groove.

[0014] According to some embodiments of the present utility model, the positioning structure includes a positioning groove and a positioning protrusion. One of the positioning groove and the positioning protrusion is arranged on the seal, and the other is arranged on the side wall of the groove. The positioning protrusion is received in the positioning groove and can abut against the side wall of the positioning groove.

[0015] According to some embodiments of the present utility model, a handle is provided on the side of the seal away from the screen frame.

[0016] According to some embodiments of the present utility model, the sliding groove has a first transition section and a first connection section connected to the first transition section. The first transition section is close to the through hole. Along the direction from the through hole to the air inlet, the distance from the first transition section to the inner side of the plate body gradually increases.

[0017] According to some embodiments of the present utility model, the screen frame has a first frame and a second frame. The first frame is used to be inserted into the sliding groove. One end of the first frame is connected to the seal, and the other end of the first frame is connected to the second frame. The first frame includes a second transition section and a second connection section. The second transition section is close to the seal. Along the direction from the through hole to the air inlet, the distance from the second transition section to the inner side of the plate body gradually increases.

[0018] According to some embodiments of the present utility model, the slide rail member includes a first main body and a second main body. The first transition section is arranged on the first main body, the first connection section is arranged on the second main body, and the second main body is detachably arranged on the first main body.

[0019] According to some embodiments of the present utility model, the plate body is the top cover of the heat pump water heater or a partial structure of the top cover.

[0020] The heat pump water heater according to the embodiment of the second aspect of the present utility model includes the filtering assembly described in the above embodiments.

[0021] The heat pump water heater according to the embodiment of the second aspect of the present utility model has at least the following beneficial effects:

[0022] Using the filter component of the first aspect embodiment, by providing a movable filter screen assembly on the plate body, when disassembling the filter screen assembly, maintenance personnel can extract the filter screen assembly from one side outside the plate body, so that the filter screen assembly can slide out of the chute, and the filter screen moves from one side inside the plate body to one side outside the plate body, such that the filter screen does not block the air inlet. This can abandon the traditional disassembly methods that require pre-disassembling the air inlet pipe or the fuselage in advance. Maintenance personnel can directly extract the filter screen assembly outside the plate body, with simple, convenient and fast operation, which is convenient for disassembling the filter screen assembly.

[0023] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0025] Figure 1 is a schematic structural diagram of a heat pump water heater according to an embodiment of the present utility model, where the filter screen blocks the air inlet in the figure;

[0026] Figure 2 is a schematic structural diagram of a heat pump water heater according to an embodiment of the present utility model, where the filter screen assembly is extracted from the chute in the figure;

[0027] Figure 3 is a schematic structural diagram of a filter component according to an embodiment of the present utility model;

[0028] Figure 4 is Figure 3 the top view of;

[0029] Figure 5 is Figure 4 the sectional view taken along line A-A in;

[0030] Figure 6 is Figure 5 the partial enlarged view of part B in;

[0031] Figure 7 is Figure 3 the exploded view of;

[0032] Figure 8 is a schematic structural diagram of a filter screen assembly according to an embodiment of the present utility model;

[0033] Figure 9 is Figure 8 the partial enlarged view of part C in;

[0034] Figure 10 is Figure 7 the front view of;

[0035] Figure 11 Structural schematic diagram of a plate body according to an embodiment of the present utility model;

[0036] Figure 12 is Figure 11 Partial enlarged view of part D in;

[0037] Figure 13 Structural schematic diagram of a plate body according to an embodiment of the present utility model from another perspective;

[0038] Figure 14 Structural schematic diagram of a second main body according to an embodiment of the present utility model.

[0039] Reference numerals in the drawings:

[0040] Plate body 100, air inlet 110, through hole 120, groove 130, positioning protrusion 131, reinforcing rib 132;

[0041] Slide rail member 200, chute 210, first transition section 211, first connection section 212, first main body 220, limiting groove 221, second main body 230, limiting protrusion 231, avoiding groove 232;

[0042] Filter screen assembly 300, filter screen 310, screen frame 320, first frame 321, second transition section 3211, second connection section 3212, second frame 322, sealing member 330, positioning groove 331, handle 332;

[0043] Side plate 410, bottom plate 420. Detailed implementation manners

[0044] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0045] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0046] In the description of the present utility model, "a plurality of" refers to more than two. If the first and second are described, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0047] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0048] In the related art, in order to filter the air inhaled from the air inlet of the heat pump water heater, generally a filter screen capable of blocking the air inlet is arranged in the air inlet pipe of the heat pump water heater. During use, the filter screen needs to be disassembled regularly for cleaning. The installation methods of the filter screen of the traditional heat pump water heater include the following two types:

[0049] First, before connecting the air inlet pipe, the filter screen is installed at the air inlet by a clamping method. After that, the air inlet pipe is installed at the air inlet. When disassembling the filter screen, the air inlet pipe needs to be disassembled in advance before the filter screen can be taken out from the air inlet. However, the disassembly operation of the air inlet pipe is complex, resulting in an increase in the disassembly difficulty for maintenance personnel and making it inconvenient to disassemble the filter screen;

[0050] Second, before installing the body of the heat pump water heater, the filter screen is detachably installed inside the heat pump water heater. After that, the body of the heat pump water heater is assembled to encapsulate the inside of the heat pump water heater. When disassembling the filter screen, the body of the heat pump water heater needs to be disassembled in advance before the filter screen can be taken out from the inside of the heat pump water heater. The operation steps are complicated and it is also not convenient to disassemble.

[0051] Based on this, in the embodiment of the present utility model, a movable filter screen assembly 300 is arranged on the plate body 100. When disassembling the filter screen assembly 300, the maintenance personnel can draw out the filter screen assembly 300 from the outside of the plate body 100, so that the filter screen assembly 300 can slide out from the chute 210, and the filter screen 310 moves from the inside of the plate body 100 to the outside of the plate body 100, so that the filter screen 310 does not block the air inlet 110. It can abandon the traditional disassembly methods that require pre-disassembly of the air inlet pipe or disassembly of the body. The maintenance personnel can directly draw out the filter screen assembly 300 from the outside of the plate body 100. The operation is simple, convenient and fast, and it is convenient to disassemble the filter screen assembly 300.

[0052] It can be understood that when installing the filter screen assembly 300, the maintenance personnel can slide the filter screen 310 into the chute 210 from the outside of the plate body 100 through the through hole 120, so that the filter screen 310 can block the air inlet 110. At this time, the filter screen 310 is close to the inside of the plate body 100, and the filter screen 310 can filter and screen out impurities and dust in the air. There is no need to reassemble the body of the heat pump water heater. The operation is simple, convenient and fast, and it is convenient to install the filter screen assembly 300.

[0053] It should be noted that by placing the filter screen 310 inside the body of the machine, the size of the filter screen 310 can be enlarged according to specific circumstances, increasing the filtering area of the filter screen 310, thereby expanding the effective ventilation area of the air inlet 110, and effectively reducing the resistance formed by the filter screen 310 during air intake.

[0054] It should be noted that along the thickness direction of the plate body 100, the outer side and the inner side of the plate body 100 are oppositely arranged. The inner side of the plate body 100 refers to the side of the plate body 100 facing the inside of the heat pump water heater, and the outer side of the plate body 100 refers to the side of the plate body 100 facing away from the inner side of the heat pump water heater.

[0055] Refer to Figures 3 to 5 , which respectively show the structural schematic diagram and the top view of the filter assembly of the embodiment of the present invention. Figure 5 It is Figure 4 the cross-sectional view of the A-A line in Figure 3 and Figure 4 In both cases, the filter screen 310 blocks the air inlet 110. As shown in the figure, the filter screen assembly 300 further includes a seal 330 connected to one side of the frame 320. When the filter screen 310 blocks the air inlet 110, the seal 330 covers the through hole 120 to block the through hole 120, which can prevent the situation that the through hole 120 is exposed to the external environment, and prevent dust in the air from entering the inside of the body of the heat pump water heater without being filtered by the filter screen 310, and can improve the cleanliness of the inside of the body of the heat pump water heater.

[0056] In order to improve the waterproof and dustproof performance of the heat pump water heater, a sealing structure is provided between the seal 330 and the body. The sealing structure is used to seal the through hole 120 to block external dust or rainwater from entering the inside of the body through the gap between the upper peripheral edge of the seal 330 and the through hole 120. On the one hand, it can prevent too many impurities or dust from adhering to the heat exchange module inside the body to ensure the heating capacity of the heat pump water heater. On the other hand, it can extend the maintenance period of the heat pump water heater and reduce the repair frequency of the heat pump water heater, thereby improving the service life of the heat pump water heater.

[0057] In another embodiment, the sealing structure includes a sealing ring. The sealing ring is a ring-shaped structure. The shape of the inner ring of the sealing ring matches the cross-sectional shape of the through hole 120. The sealing ring is arranged on the upper side of the plate body 100, and the through hole 120 is located in the inner ring of the sealing ring. When the filter screen 310 blocks the air inlet 110, the sealing ring is clamped between the upper peripheral edge of the through hole 120 and the seal 330, and the sealing ring deforms to eliminate the gap between the peripheral edge of the seal 330 and the through hole 120, which can seal the through hole 120 in all directions, thereby blocking external dust or rainwater from entering the inside of the heat pump water heater at the connection between the body and the seal 330.

[0058] It should be noted that, in order to facilitate positioning the sealing ring on the plate body 100, a first positioning groove 331 is provided on the upper peripheral edge of the through hole 120. The first positioning groove 331 is of an annular structure and extends along the circumferential direction of the through hole 120. A part of the sealing ring is accommodated in the first positioning groove 331 and can abut against the side wall of the first positioning groove 331, so as to circumferentially position the sealing ring and thus limit the relative movement of the sealing ring with respect to the plate body 100.

[0059] As another embodiment, the sealing structure may also be a first stop strip provided on the upper peripheral edge of the through hole 120 and a second stop strip provided on the seal 330. The first stop strip is of an annular structure and extends along the circumferential direction of the through hole 120. The second stop strip correspondingly is of a ring structure and extends along the circumferential direction of the through hole 120. When the filter screen 310 blocks the air inlet 110, the first stop strip and the second stop strip overlap, and external dust or rainwater needs to cross the gap between the first stop strip and the second stop strip to enter the interior of the fuselage, which can also prevent external dust or rainwater from entering the interior of the heat pump water heater from the connection between the fuselage and the seal 330, and details will not be elaborated here.

[0060] Refer to Figure 6 、 Figure 7 , Figure 6 is Figure 5 a partial enlarged view of part B in Figure 7 and shows an exploded schematic view of the filtering assembly. In order to facilitate positioning the relative position between the seal 330 and the plate body 100, a groove 130 is provided on the outer side of the plate body 100, and the through hole 120 is provided on the bottom wall of the groove 130. When the filter screen 310 blocks the air inlet 110, at least part of the seal 330 is installed in the groove 130. On the one hand, it can prevent the situation that the through hole 120 is partially exposed to the external environment due to the offset of the seal 330, so as to effectively block the through hole 120. On the other hand, it can reduce the occupied space of the seal 330.

[0061] In another embodiment, the groove 130 is of a rectangular groove structure, and the through hole 120 is of a rectangular hole structure. From the outer side of the plate body 100 to the inner side of the plate body 100, the groove 130 is recessed. The length dimension and width dimension of the groove 130 respectively match the length dimension and width dimension of the seal 330, which can limit the movement of the seal 330 along the length direction of the through hole 120 and limit the movement of the seal 330 along the width direction of the through hole 120, so as to limit the lateral offset of the seal 330 relative to the through hole 120, and can circumferentially position the seal 330 to avoid the situation that the through hole 120 is partially exposed to the external environment due to the offset of the seal 330, thereby effectively blocking the sealing hole.

[0062] It should be noted that positioning pins can also be provided on the outer side of the plate body 100, and positioning grooves can be provided on the side of the seal 330 facing the screen frame 320. The positioning pins are accommodated in the positioning grooves, which can also circumferentially position the seal 330, and details will not be described herein again.

[0063] It should be noted that, for example Figure 7 As shown, the air inlet 110 and the through hole 120 are both provided on the plate body 100. Along the thickness direction of the plate body 100, the air inlet 110 and the through hole 120 both penetrate the plate body 100. The air inlet 110 is used to communicate with the input end of the fan inside the body of the heat pump water heater, and the through hole 120 is used to avoid the screen frame 320, so that the filter screen 310 can enter the inner side of the plate body 100 from the outer side of the plate body 100 or exit from the inner side of the plate body 100 to the outer side of the plate body 100, which is convenient for installing or disassembling the filter screen assembly 300.

[0064] It should be pointed out that, for example Figure 6 As shown, when the filter screen 310 blocks the air inlet 110, the seal 330 covers the through hole 120, the screen frame 320 passes through the through hole 120, and one end of the screen frame 320 away from the seal 330 is located on the side of the air inlet 110 away from the through hole 120, so that the filter screen 310 can completely block the air inlet 110, thereby filtering impurities or dust, and preventing impurities or dust from entering the fan, thus improving the use reliability of the heat pump water heater.

[0065] It should be pointed out that, for example Figure 6 As shown, the upper surface of the seal 330 is flush with the periphery of the notch of the groove 130, making the upper surface of the plate body 100 relatively flat, which can improve the aesthetic degree of the heat pump water heater.

[0066] Referring to Figure 8 、 Figure 9 and in combination with Figure 11 、 Figure 12 , Figure 8 FIG. is a schematic structural diagram of a filter screen assembly 300 according to an embodiment of the present invention, Figure 9 is Figure 8 a partial enlarged view of part C in Figure 11 FIG. is a schematic structural diagram of a plate body 100 according to an embodiment of the present invention, Figure 12 is Figure 11Partial enlarged view of part D. In this embodiment, when the filter screen 310 blocks the air inlet 110, in order to prevent the seal 330 from exiting the groove 130 accidentally, a positioning structure is provided between the seal 330 and the plate body 100 to limit the movement of the seal 330 in the direction of exiting the groove 130, thereby positioning the seal 330 in the groove 130, which can improve the reliability of the heat pump water heater. When the maintenance personnel pull out the filter screen assembly 300, an upward external force is applied to the seal 330. Under the action of the external force, the positioning structure is disconnected, so that the seal 330 can move in the direction of exiting the groove 130, and the filter screen 310 can be pulled out, facilitating the maintenance personnel to disassemble the filter screen 310.

[0067] For example, as Figure 9 、 Figure 12 shown, the positioning structure includes a positioning groove 331 provided on the seal 330 and a positioning protrusion 131 provided on the side wall of the groove 130. When the filter screen 310 blocks the air inlet 110, the positioning protrusion 131 is received in the positioning groove 331 and can abut against the side wall of the positioning groove 331 to limit the movement of the seal 330 in the direction of exiting the groove 130. When the filter screen assembly 300 is pulled out from the sliding groove 210, the maintenance personnel can pull the seal 330 to make the positioning protrusion 131 exit the positioning groove 331, thereby disconnecting the positioning structure, facilitating the extraction of the filter screen 310 and convenient for the maintenance personnel to disassemble the filter screen 310.

[0068] It should be noted that the positioning groove 331 is provided on the side of the seal 330 facing the mesh frame 320, and the positioning protrusion 131 is provided on the side wall of the groove 130. When the filter screen 310 blocks the air inlet 110, both the positioning protrusion 131 and the positioning groove 331 are hidden in the groove 130, which can prevent the positioning groove 331 and the positioning protrusion 131 from being exposed to the external environment, preventing the positioning groove 331 and the positioning protrusion 131 from being exposed to the sun, and improving the connection reliability between the seal 330 and the fuselage.

[0069] It should be noted that the positioning groove 331 can also be replaced by a positioning block. When the filter screen 310 blocks the air inlet, the positioning block abuts against the positioning protrusion 131, which can also limit the movement of the seal 330 in the direction of exiting the groove 130, and will not be elaborated here.

[0070] It should be noted that in order to improve the connection reliability of the positioning structure, positioning protrusions 131 are respectively provided on both sides in the length direction of the groove 130. Correspondingly, positioning grooves 331 are respectively provided at both ends in the length direction of the seal 330. The positioning protrusions 131 are received in the corresponding positioning grooves 331, which can improve the connection strength between the seal 330 and the plate body 100, thereby improving the connection stability of the filter screen assembly 300.

[0071] It should be noted that the positions of the positioning groove 331 and the positioning protrusion 131 can also be interchanged, that is, the positioning groove 331 is provided on the side wall of the groove 130, and the positioning protrusion 131 is provided on the seal 330, which can also limit the movement of the seal 330 in the direction of exiting the groove 130, and details are not described herein again.

[0072] It should be pointed out that when the positioning protrusion 131 is pressed into the sliding groove 210 under the action of an external force, the through hole 120 is prone to deformation, resulting in easy fracture at the periphery of the through hole 120. Based on this, for example Figure 12 As shown, in order to reduce the deformation of the through hole 120, a plurality of reinforcing ribs 132 are provided between the bottom wall and the side wall of the groove 130, and the plurality of reinforcing ribs 132 are arranged at intervals along the circumference of the through hole 120, which can improve the structural strength of the through hole 120, thereby avoiding the fracture at the periphery of the through hole 120.

[0073] As another implementation manner, the positioning structure may further include a first magnet provided on the seal 330 and a second magnet provided in the groove 130. The magnetism of the first magnet is different from that of the second magnet, so that the first magnet can magnetically attract the second magnet. When the filter screen 310 blocks the air inlet 110, the first magnet and the second magnet are attracted to each other, which can also limit the seal 330 from exiting the groove 130. When the filter screen assembly 300 is pulled out of the sliding groove 210, only an external force greater than the magnetic attraction between the first magnet and the second magnet is required, which is convenient for disassembling the filter screen 310. Of course, in some other specific implementation manners, the seal 330 can also be fixed by bolts or screws and other components, and details are not described herein again.

[0074] For example Figure 3 、 Figure 8 As shown, Figure 8 FIG. is a schematic structural diagram of a filter screen assembly 300 according to an embodiment of the utility model. In order to facilitate pulling the seal 330, a handle 332 is provided on the side of the seal 330 away from the frame 320 in this embodiment. Maintenance personnel can use the handle 332 as a force application point to pull the seal 330, so that the filter screen assembly 300 can slide out of the sliding groove 210, which is convenient for disassembling the filter screen assembly 300.

[0075] It should be noted that both the seal 330 and the frame 320 are plastic parts, and the plastic parts have higher structural strength, strong corrosion resistance, and are durable.

[0076] It should be noted that the handle 332 can also be replaced with a concave structure, and the concave structure can increase the operation space for maintenance personnel and facilitate the application of force by maintenance personnel.

[0077] It should be noted that the seal 330 and the frame 320 are of an integral structure. The seal 330 and the frame 320 can be integrally formed by injection molding, which can reduce the number of molds to reduce the production and manufacturing cost of the molds, thereby reducing the production and manufacturing cost of the heat pump water heater. Of course, in some specific embodiments, the seal 330 and the frame 320 can also be connected by welding. The welding methods include but are not limited to resistance welding, laser welding or ultrasonic welding.

[0078] Referring to Figure 10 , Figure 10 is Figure 7 the front view of. In this embodiment, the chute 210 includes a first transition section 211 and a first connection section 212. One end of the first transition section 211 is connected to the first connection section 212, and the other end of the first transition section 211 communicates with the through hole 120. Along the direction from the through hole 120 to the air inlet 110, the distance from the first transition section 211 to the inner side of the plate body 100 gradually increases. The first transition section 211 extends in the direction away from the air inlet 110. When the maintenance personnel pull out the filter assembly 300, the frame 320 abuts against the side wall of the first transition section 211, which can guide the frame 320 to gradually deform, so that the filter assembly 300 can smoothly slide out of the chute 210, facilitating the disassembly of the filter assembly 300.

[0079] In another embodiment, the frame 320 is flexible. The first transition section 211 is of an arc structure, and the first connection section 212 is of a straight bar structure. Along the thickness direction of the plate body 100, the projection of one end of the first transition section 211 close to the through hole 120 is accommodated in the through hole 120. When the filter assembly 300 is inserted into the chute 210, the frame 320 first passes through the first transition section 211 and then enters the first connection section 212. When the frame 320 passes through the first transition section 211, the frame 320 bends and deforms, so that the filter assembly 300 can smoothly slide out of the chute 210, facilitating the disassembly of the filter assembly 300.

[0080] It should be noted that, for example Figure 5 as shown, when the filter 310 blocks the air inlet 110, the first connection section 212 is arranged parallel to the inner side of the plate body 100, which can reduce the occupied space of the frame 320 inside the heat pump water heater, so as to reduce the overall height of the heat pump water heater. On the one hand, it can reduce the height dimension of the heat pump water heater to reduce the production and manufacturing cost of the heat pump water heater. On the other hand, it is convenient to carry and transport the heat pump water heater.

[0081] As another implementation manner, the transition section 1 can also be of a straight line structure. At this time, the included angle between the first transition section 211 and the first connection section 212 is an obtuse angle, which can also facilitate the disassembly of the filter assembly 300.

[0082] Referring toFigure 8 In this embodiment, the screen frame 320 has a first frame 321 and a second frame 322. There are two first frames 321, which are arranged opposite to each other along the length direction of the through hole 120. One end of the first frame 321 is connected to the seal 330, and the other ends of the two first frames 321 are respectively connected to the two ends of the second frame 322. The first frame 321 includes a second transition section 3211 and a second connection section 3212. The second transition section 3211 is close to the seal 330. One end of the second transition section 3211 is connected to the second connection section 3212, and the other end of the second transition section 3211 is connected to the seal 330. The end of the second connection section 3212 away from the second transition section 3211 is connected to the second frame 322. Along the direction from the through hole 120 to the air inlet 110, the distance from the second transition section 3211 to the inner side of the plate body 100 gradually increases, which can reduce the interference between the first frame 321 and the chute 210, so as to facilitate the insertion or withdrawal of the filter assembly 300.

[0083] In another embodiment, the second transition section 3211 is an arc structure, the second connection section 3212 is a straight bar structure, and the curvature of the second transition section 3211 matches the curvature of the first transition section 211. When the filter screen 310 blocks the air inlet 110, the second transition section 3211 is accommodated in the first transition section 211, and the second connection section 3212 is accommodated in the first connection section 212, which can reduce the interference between the first frame 321 and the chute 210, so as to facilitate the insertion or withdrawal of the filter assembly 300.

[0084] It should be noted that the filter screen 310 is connected to the screen frame 320 by bonding, which can facilitate the assembly of the filter screen 310, thereby improving the production efficiency of the filter assembly 300. Of course, in some specific embodiments, the filter screen 310 can also be pre-installed in a mold, and then the screen frame 320 is injection-molded through the mold, so that the screen frame 320 and the filter screen 310 are an integral structure, which can also facilitate the production of the filter assembly 300 and will not be elaborated here. In addition, the filter screen 310 can be a flat filter screen, a corrugated filter screen or a W-shaped filter screen, which will not be elaborated here.

[0085] In this embodiment, the screen frame 320 is flexible. When the fan in the heat pump water heater sucks air from the air inlet 110, the screen frame 320 is likely to swing. If the swing amplitude of the screen frame 320 is too large, the dust attached to the filter screen 310 is likely to be raised, resulting in some dust flowing into the fan interior and affecting the normal use of the fan. Based on this, refer to Figure 5 、 Figure 6 and Figure 14 , Figure 14The schematic diagram of the structure of the second body 230 of an embodiment of the utility model. In this embodiment, a slide rail 200 is arranged on the inner side of the plate 100, and the slide rail 200 is provided with an avoidance groove 232 connected to the air inlet 110. Along the length direction of the through hole 120, two opposite sides of the avoidance groove 232 are provided with slide grooves 210 respectively. When the filter 310 blocks the air inlet 110, one side of the mesh frame 320 is accommodated in one of the slide grooves 210 and can abut against the side wall of the slide groove 210, and the other opposite side of the mesh frame 320 is accommodated in another slide groove 210 and can abut against the side wall of the slide groove 210, so as to limit the swing of the mesh frame 320 relative to the sealing member 330, and avoid the occurrence of dust raising, thereby ensuring the normal use of the fan.

[0086] Reference Figure 13 , Figure 14 , Figure 13 for Figure 11 The schematic diagram of the structure after flipping 180 degrees. Figure 14 The schematic diagram of the structure of the second body 230 of an embodiment of the utility model. In this embodiment, in order to facilitate the production of the slide rail member 200, the slide rail member 200 is divided into a first body 220 and a second body 230, the first transition section 211 is arranged on the first body 220, and the first connecting section 212 is arranged on the second body 230. Since the first body 220 and the second body 230 are detachably connected, the first body 220 and the second body 230 can be produced by different molds, which can simplify the mold structure.

[0087] It should be noted that there are two first bodies 220 , which are arranged opposite to each other along the length direction of the through hole 120 , so that the two first bodies 220 can respectively guide the deformation of the opposite sides of the screen frame 320 , making it easy to insert or withdraw the filter assembly 300 .

[0088] It should be noted that the first body 220 and the plate body 100 are an integrated structure, which can reduce the number of molds, thereby reducing the production and manufacturing costs of the molds, thereby reducing the production and manufacturing costs of the filter assembly. Of course, in some specific embodiments, the first body 220 can also be connected to the plate body 100 by welding. Among them, the welding method includes but is not limited to resistance welding, laser welding or ultrasonic welding.

[0089] For example Figure 13 , Figure 14As shown, in order to facilitate the assembly of the first main body 220 and the second main body 230, a limiting structure is provided between the slide rail member 200 and the plate body 100. The limiting structure is used for separating the first main body 220 and the second main body 230, can pre-position the slide rail member 200, and can facilitate the assembly of the first main body 220 and the second main body 230. In another embodiment, the limiting structure includes a limiting protrusion 231 provided on the second main body 230 and a limiting groove 221 provided on the first main body 220. A through hole is provided on one side of the limiting groove 221 facing the second main body 230. The limiting protrusion 231 is accommodated in the limiting groove 221 through the through hole, and the limiting protrusion 231 can abut against the side wall of the limiting groove 221, which can circumferentially position the slide rail member 200 to facilitate the assembly of the slide rail member 200. Of course, in some other specific embodiments, the limiting structure can also be a structure in which a limiting pin cooperates with the limiting groove 221, which will not be elaborated here.

[0090] It should be noted that after pre-positioning the second main body 230, the second main body 230 can be fixed on the plate body 100 by a single fastener. The operation is simple, convenient and fast, and can facilitate the assembly of the second main body 230. The fastener can be a bolt or a screw and other components.

[0091] Refer to Figure 1 、 Figure 2 , which all show the structural schematic diagrams of a heat pump water heater according to an embodiment of the present invention. Figure 1 In Figure 2 , the filter screen 310 blocks the air inlet 110, and in

[0092] , the filter screen assembly 300 is pulled out from the chute 210. A heat pump water heater according to an embodiment of the present invention includes the filter assembly of the above embodiment.

[0093] Such as Figure 1 、 Figure 2As shown, it should be noted that the heat pump water heater includes a body, which includes a top cover, a bottom plate 420 and a plurality of side plates 410. Along the up and down direction, the top cover and the bottom plate 420 are oppositely arranged, the top cover is located above the bottom plate 420, the upper end of the side plate 410 is connected to the top cover, and the lower end of the side plate 410 is connected to the bottom plate 420. The top cover, the bottom plate 420 and the plurality of side plates 410 enclose to form the inner cavity of the body.

[0094] It should be noted that the plate body 100 can be the top cover or a partial structure of the top cover. The heat pump water heater can intake air from the top, which is convenient for the heat pump water heater to intake air.

[0095] As another implementation manner, the plate body 100 can also be any one of the side plates 410. The heat pump water heater can intake air from one side of the body, which is also convenient for the heat pump water heater to intake air.

[0096] Since the heat pump water heater adopts all the technical solutions of the filtering component in the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be elaborated here.

[0097] The embodiments of the present invention have been described in detail above with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. A filtering component for a heat pump water heater, characterized in that Comprising: A plate body, provided with an air inlet and a through hole located on one side of the air inlet; A slide rail member, disposed inside the plate body, and the slide rail member is provided with sliding grooves located on both sides of the air inlet; A filter assembly, including a filter and a frame, the filter is disposed in the frame, wherein the filter assembly can be inserted into or withdrawn from the sliding groove through the through hole, and when the filter assembly is inserted into the sliding groove, the filter blocks the air inlet.

2. The filtering component according to claim 1, characterized in that: The filter assembly further includes a seal connected to one side of the frame, and the seal is used to block the through hole.

3. The filter component according to claim 2, wherein: The plate body is provided with a groove, the through hole is disposed on the bottom wall of the groove, and at least a part of the seal is received in the groove.

4. The filter assembly according to claim 3, characterized in that: A positioning structure is provided between the seal and the plate body, and the positioning structure is used to position the seal in the groove.

5. The filter assembly according to claim 4, wherein: The positioning structure includes a positioning groove and a positioning protrusion, one of the positioning groove and the positioning protrusion is disposed on the seal, and the other is disposed on the side wall of the groove, and the positioning protrusion is received in the positioning groove and can abut against the side wall of the positioning groove.

6. The filtering component according to claim 2, characterized in that: A handle is provided on the side of the seal away from the frame.

7. The filtering component according to claim 2, characterized in that: The sliding groove has a first transition section and a first connection section connected to the first transition section, the first transition section is close to the through hole, and along the direction from the through hole to the air inlet, the distance from the first transition section to the inside of the plate body gradually increases.

8. The filtering component according to claim 7, wherein: The frame has a first frame and a second frame, the first frame is used to be inserted into the sliding groove, one end of the first frame is connected to the seal, the other end of the first frame is connected to the second frame, the first frame includes a second transition section and a second connection section, the second transition section is close to the seal, and along the direction from the through hole to the air inlet, the distance from the second transition section to the inside of the plate body gradually increases.

9. The filter assembly according to claim 7, wherein: The slide rail member includes a first main body and a second main body, the first transition section is disposed on the first main body, the first connection section is disposed on the second main body, and the second main body is detachably disposed on the first main body.

10. The filter assembly according to claim 1, characterized in that: The plate body is the top cover of the heat pump water heater or a partial structure of the top cover.

11. Heat pump water heater, characterized in that: Comprising the filter assembly according to any one of claims 1 to 10.

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