Integrated heating pump and washing apparatus

Abstract

The application discloses an integrated heating pump and a washing device, wherein the integrated heating pump comprises a pump shell having a containing cavity, a bottom plate, a water inlet pipe, a water outlet pipe, an impeller and a flow guide cover; the water inlet pipe and the water outlet pipe are both communicated with the containing cavity; the flow guide cover is sleeved outside the water inlet pipe, and at least part of the flow guide cover is arranged outside the impeller; and the washing device comprises the integrated heating pump. In the application, the flow guide cover is arranged outside the water inlet pipe to shield the delivery port of the water inlet pipe for delivering fluid to the containing cavity; when the fluid in the containing cavity flows back to the water inlet pipe, the fluid is blocked by the flow guide cover and always stays in the containing cavity; and the gap between the flow guide cover and the outer surface of the impeller is limited, so that the flow of the fluid flowing back from the surface of the impeller is limited, the fluid delivery loss is reduced, and the delivery efficiency of the integrated heating pump is improved.

Description

Technical Field

[0001] This invention relates to electrical equipment, and more particularly to an integrated heating pump and washing equipment. Background Technology

[0002] Integrated heating pumps combine the functions of fluid transport and heating, simplifying the internal fluid heating and pumping system of equipment. Typically, fluid enters the pump chamber through the inlet pipe and is discharged from the outlet pipe by the impeller, thus achieving fluid transport. Since the fluid pressure at the impeller is greater than the fluid pressure at the inlet pipe, the fluid tends to flow towards the inlet pipe and generates backflow, resulting in fluid transport loss in the integrated heating pump and affecting the transport efficiency. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes an integrated heating pump that can reduce fluid delivery losses in the integrated heating pump.

[0004] The present invention also proposes a washing device that includes an integrated heating pump.

[0005] An integrated heating pump according to a first aspect embodiment of the present invention comprises:

[0006] Pump casing, having a receiving cavity;

[0007] The chassis is covered and sealed to the pump casing;

[0008] A water inlet pipe is connected to the chassis and communicates with the receiving cavity;

[0009] The water outlet pipe is connected to the pump casing and communicates with the receiving cavity;

[0010] An impeller, located within the receiving cavity, is used to draw fluid from the receiving cavity out of the outlet pipe;

[0011] A flow guide shroud is connected to the chassis, the flow guide shroud is sleeved on the outside of the water inlet pipe, and at least part of the flow guide shroud surrounds the outside of the impeller.

[0012] The integrated heating pump according to embodiments of the present invention has at least the following beneficial effects:

[0013] In this invention, the flow guide shield blocks the inlet of the water inlet pipe from the fluid delivery port of the water inlet pipe to the receiving cavity. When the fluid in the receiving cavity flows back to the water inlet pipe, it is blocked by the flow guide shield and always stays in the receiving cavity. Moreover, the gap between the flow guide shield and the outer surface of the impeller is limited, which can limit the flow rate of the fluid flowing back from the surface of the impeller, thereby reducing fluid delivery loss and improving the delivery efficiency of the integrated heating pump.

[0014] According to some embodiments of the present invention, the flow guide includes a connecting portion and a flow-blocking portion connected together, the impeller includes an impeller cover, the connecting portion is connected to the chassis, the flow-blocking portion surrounds the outside of the impeller cover and forms a slit with the impeller cover.

[0015] According to some embodiments of the present invention, the flow-blocking portion includes a first flow-blocking section and a second flow-blocking section, and the impeller cover includes a first extension and a second extension. The first flow-blocking section surrounds the outside of the first extension, and the second flow-blocking section surrounds the outside of the second extension. The extension directions of the first flow-blocking section and the second flow-blocking section form an angle with each other.

[0016] According to some embodiments of the present invention, the second flow-blocking section is connected to one end of the first flow-blocking section facing the water inlet pipe, the second flow-blocking section extends axially along the water inlet pipe, and the first flow-blocking section extends radially along the water inlet pipe.

[0017] According to some embodiments of the present invention, the surface of the flow guide facing the impeller cover is provided with flow-blocking protrusions that protrude toward the impeller cover.

[0018] According to some embodiments of the present invention, the integrated heating pump further includes a mounting sleeve, at least a portion of which is inserted into the interior of the water inlet pipe, the water inlet pipe being clamped between the mounting sleeve and the flow guide, and a portion of which is located inside the impeller cover.

[0019] According to some embodiments of the present invention, the mounting sleeve includes a connected insertion portion and a guide portion, a portion of the insertion portion is inserted into the water inlet pipe, the connecting portion and the insertion portion abut against each other radially along the water inlet pipe, and the guide portion is located inside the impeller cover.

[0020] According to some embodiments of the present invention, one of the connecting portion and the plug portion is provided with a groove along the radial direction of the water inlet pipe, and the other is provided with a protrusion along the radial direction of the water inlet pipe, the protrusion being inserted into the groove.

[0021] According to some embodiments of the present invention, the mounting sleeve includes a guide portion located inside the impeller cover, the guide portion having an inner diameter that gradually increases in the direction toward the impeller.

[0022] According to some embodiments of the present invention, the chassis includes a connected mounting platform and a flange, the flange being arranged along the axial direction of the water inlet pipe, the mounting platform being arranged along the radial direction of the water inlet pipe, the flange being sleeved on the outside of the water inlet pipe, the outside of the water inlet pipe being provided with a first limiting flange and a second limiting flange spaced apart, the flange and a portion of the mounting platform being limited between the first limiting flange and the second limiting flange, the flow guide being sleeved on the outside of the flange, and the connecting portion being limited between the mounting platform and the first limiting flange.

[0023] A washing apparatus according to a second aspect of the present invention includes:

[0024] Washing device, used for washing;

[0025] The integrated heating pump of the first aspect embodiment is installed in the washing device and provides heated fluid to the washing device.

[0026] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0028] Figure 1 This is a schematic diagram of one embodiment of the integrated heating pump of the present invention;

[0029] Figure 2 for Figure 1 Cross-sectional view of an integrated heating pump;

[0030] Figure 3 for Figure 2 A schematic diagram showing the structure with some parts hidden.

[0031] Figure 4 for Figure 3 A schematic diagram showing the concealed water inlet pipe and impeller body.

[0032] Figure 5 A cross-sectional view of another embodiment of the integrated heat pump;

[0033] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0034] Figure label:

[0035] Pump casing 100, receiving cavity 110;

[0036] Chassis 200, mounting platform 210, flange 220;

[0037] Water inlet pipe 300, first limiting flange 310, second limiting flange 320;

[0038] Water outlet pipe 400;

[0039] Impeller 500, impeller cover 510, first extension 511, second extension 512, impeller body 520;

[0040] The flow guide 600, the connecting part 610, the groove 611, the flow blocking part 620, the first flow blocking section 621, the second flow blocking section 622, and the flow blocking protrusion 630.

[0041] Heating element 700;

[0042] Mounting sleeve 800, plug-in part 810, protrusion 811, guide part 820. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0044] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0045] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0046] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0047] Reference Figure 1 and Figure 2An embodiment of the present invention provides an integrated heating pump, which includes a pump casing 100, a chassis 200, an inlet pipe 300, an outlet pipe 400, an impeller 500, and a flow guide 600. The pump casing 100 has an internal receiving cavity 110 for receiving the fluid to be heated. The chassis 200 covers the pump casing 100, sealing the top of the pump casing 100 and allowing the inlet pipe 300 to be installed. The outlet pipe 400 is connected to the pump casing 100, and both the inlet pipe 300 and the outlet pipe 400 communicate with the receiving cavity 110. The integrated heating pump also includes a heating element 700, which is installed on the chassis 200 and is used to heat the fluid in the receiving cavity 110. The impeller 500 is located in the receiving cavity 110. After being driven, the impeller 500 rotates and drives the fluid in the receiving cavity 110 to flow. The inlet pipe 300 delivers fluid into the receiving cavity 110. After being heated by the heating element 700, the fluid is discharged from the outlet pipe 400 under the drive of the impeller 500, thus realizing the heating and pumping of the fluid.

[0048] To ensure pumping efficiency, the impeller 500 generates a certain fluid pressure in the receiving cavity 110 after rotation, so that the fluid can be discharged from the outlet pipe 400 more smoothly. At the same time, the fluid pressure in the receiving cavity 110 is greater than the fluid pressure at the inlet pipe 300, which makes it easy for the fluid in the receiving cavity 110 to flow back to the inlet pipe 300 during the flow process, resulting in fluid loss and affecting the delivery efficiency of the integrated heating pump. Based on this, in this invention, the guide shield 600 is installed on the chassis 200 and sleeved on the outside of the water inlet pipe 300, and at least part of the guide shield 600 surrounds the outside of the impeller 500. In this way, the guide shield 600 blocks the delivery port 310 of the water inlet pipe 300 from delivering fluid to the receiving cavity 110 on the outside of the water inlet pipe 300. When the fluid in the receiving cavity 110 flows back to the water inlet pipe 300, it cannot enter the water inlet pipe 300 from the delivery port 310 due to the blocking effect of the guide shield 600, and is blocked outside the guide shield 600 and always located inside the receiving cavity 110. In addition, the gap between the guide shield 600 and the outer surface of the impeller 500 is limited, which can limit the flow rate of the fluid flowing back from the surface of the impeller 500, thereby reducing fluid delivery loss and improving the delivery efficiency of the integrated heating pump.

[0049] It should be noted that the flow guide shroud 600 is coaxially arranged with the inlet pipe 300. One end of the flow guide shroud 600 is connected to the chassis 200 and sleeved on the outside of the inlet pipe 300, while the other end extends toward the impeller 500 and protrudes toward the impeller 500 relative to the end of the inlet pipe 300. Thus, the flow guide shroud 600 can block the delivery port 310 of the inlet pipe 300 from the outside of the inlet pipe 300. In addition, the outlet pipe 400 is connected to the outer wall of the pump casing 100 in the radial direction of the impeller 500. The inlet pipe 300 transports fluid axially, and the fluid entering the receiving cavity 110 flows radially along the impeller 500 as the impeller 500 rotates, and is directly discharged through the outlet pipe 400, resulting in high fluid pumping efficiency.

[0050] Furthermore, since the fluid flows radially along the impeller 500 under the drive of the impeller 500, the flow path of the fluid returning to the inlet pipe 300 is as follows: it gradually flows from the outside of the impeller 500 towards the inlet pipe 300 along the axial direction of the inlet pipe 300, and enters the inlet pipe 300 through the delivery port 310. In this invention, at least a portion of the guide shroud 600 is disposed outside the impeller 500, and the fluid can only return to the inlet pipe 300 through the gap between the guide shroud 600 and the outer surface of the impeller 500. The gap between the guide shroud 600 and the impeller 500 restricts the return flow of the fluid, thereby reducing fluid transport losses.

[0051] Reference Figure 3 The flow guide 600 includes a connecting part 610 and a flow blocking part 620 connected together. The connecting part 610 is connected to the chassis 200, so that the flow guide 600 is firmly installed on the chassis 200 and remains stable during fluid transportation. The flow blocking part 620 cooperates with the outer surface of the impeller 500 to prevent fluid backflow. Specifically, the impeller 500 includes an impeller cover 510 and an impeller body 520. The impeller body 520 has multiple blades connected to the side of the impeller cover 510 facing away from the inlet pipe 300. The blades are spirally distributed or spaced apart circumferentially along the impeller cover 510. Fluid flowing from the inlet pipe 300 into the receiving cavity 110 enters the interior of the impeller cover 510 and flows to the surface of the blades. When the impeller 500 rotates, the fluid is disturbed by the blades and flows to the outside of the impeller 500. The fluid flowing to the outside of the impeller 500 flows back to the inlet pipe 300 under the action of the pressure difference between the receiving cavity 110 and the inlet 310 of the inlet pipe 300. In this invention, the flow-blocking part 620 is arranged around the outside of the impeller cover 510. When the fluid flows back, the flow-blocking part 620 prevents the fluid from entering the inlet 310 of the inlet pipe 300 and limits the flow rate of the fluid back.

[0052] Furthermore, a slit is formed between the flow-blocking part 620 and the impeller cover 510 to minimize the gap between the flow-blocking part 620 and the impeller cover 510, reduce fluid backflow loss, and ensure that the impeller 500 can rotate relative to the guide shroud 600 to provide power for fluid transport.

[0053] It should be noted that the aforementioned "slit" refers to a narrow gap between the flow-blocking part 620 and the impeller cover 510. This reduces the space for fluid backflow, limiting the fluid backflow rate, and lengthens the fluid backflow path, thus reducing the fluid backflow rate. In some specific embodiments, the gap between the flow-blocking part 620 and the impeller cover 510 is set to no more than 1.5 mm, ensuring that the gap is sufficient to allow the impeller 500 to rotate relative to the guide shield 600. This reduces the machining and fitting precision requirements of the impeller 500 and the guide shield 600, facilitating their installation and mating. Furthermore, the smaller gap between the flow-blocking part 620 and the impeller cover 510 effectively prevents fluid backflow and reduces fluid loss.

[0054] In one embodiment, the flow guide 600 extends axially along the inlet pipe 300, and there is at least an axial slit between the flow guide 600 and the impeller cover 510. When the fluid in the receiving cavity 110 flows back, it needs to flow axially to the inlet pipe 300. The flow guide 600 blocks the fluid backflow in the axial direction. Furthermore, the inlet pipe 300 and the pump casing 100 are distributed axially. When the inlet pipe 300 is located above the impeller 500, the fluid in the receiving cavity 110 flows back to the inlet pipe 300 and needs to overcome its own gravity. This can increase the fluid backflow resistance and reduce the backflow rate.

[0055] In another embodiment, the flow-blocking portion 620 includes a first flow-blocking section 621 and a second flow-blocking section 622, and the impeller cover 510 includes a first extension portion 511 and a second extension portion 512. The first flow-blocking section 621 surrounds the outside of the first extension portion 511, and the second flow-blocking section 622 surrounds the outside of the second extension portion 512. The extension directions of the first flow-blocking section 621 and the second flow-blocking section 622 form an angle with each other. Thus, the extension direction of the slit between the first flow-blocking section 621 and the first extension portion 511 is different from the extension direction of the slit between the second flow-blocking section 622 and the second extension portion 512. When the fluid in the receiving cavity 110 flows back, it must pass through the slit between the first flow-blocking section 621 and the first extension 511 and the slit between the second flow-blocking section 622 and the second extension 512 before it can flow back to the inlet pipe 300. The fluid has a long flow path, which can reduce the flow rate of the fluid. In addition, the flow direction of the fluid changes when it transitions between the two slits, which increases the flow resistance of the fluid and further reduces the flow rate and flow loss of the fluid.

[0056] Specifically, multiple first flow-blocking sections 621 and second flow-blocking sections 622 can be provided and are alternately distributed along the extension direction of the flow-blocking section 620. Similarly, multiple first extension sections 511 and second extension sections 512 are provided and are alternately distributed along the extension direction of the impeller cover 510 to cooperate with the first flow-blocking sections 621 and second flow-blocking sections 622. In this way, multiple turning areas can be formed on the fluid return path. When the fluid returns, it needs to go through multiple turns before entering the inlet pipe 300. The fluid return resistance increases, which can effectively reduce the fluid transport loss.

[0057] In some specific embodiments, the flow-blocking portion 620 has a groove on its surface facing the impeller cover 510. The two opposing groove walls in the extending direction of the flow-blocking portion 620 are respectively a first flow-blocking section 621 and a second flow-blocking section 622. The impeller cover 510 has a protrusion on its surface facing the flow-blocking portion 620. The two opposing surfaces of the protrusion in the extending direction of the impeller cover 510 are respectively a first extension portion 511 and a second extension portion 512; or, as... Figure 4 As shown, the flow-blocking portion 620 has a protrusion on its surface facing the impeller cover 510. Two opposing surfaces of the protrusion in the extending direction of the flow-blocking portion 620 are respectively a first flow-blocking section 621 and a second flow-blocking section 622. The impeller cover 510 has a groove on its surface facing the flow-blocking portion 620. Two opposing groove walls in the extending direction of the impeller cover 510 are respectively a first extension portion 511 and a second extension portion 512. The groove and the protrusion are positioned to surround the first flow-blocking section 621 and the second flow-blocking section 622, respectively.

[0058] In other embodiments, such as Figure 3 As shown, the flow-blocking section 620 includes a first flow-blocking section 621 and a second flow-blocking section 622. The first flow-blocking section 621 extends radially along the inlet pipe 300, and the second flow-blocking section 622 extends axially along the inlet pipe 300, and the second flow-blocking section 622 is closer to the inlet pipe 300. Similarly, the first extension 511 extends radially along the inlet pipe 300 and cooperates with the first flow-blocking section 621 to form a slit extending radially. The second extension 512 extends axially along the inlet pipe 300 and cooperates with the second flow-blocking section 622 to form a slit extending axially. In this way, the returning fluid must first pass radially through one slit and then axially through the other slit before entering the inlet pipe 300. The fluid needs to undergo a relatively large turning point to achieve the return flow, and the return flow resistance of the fluid is relatively large, which can effectively reduce the fluid transport loss.

[0059] Furthermore, the second extension 512 is located above the first extension 511, and the second flow-blocking section 622 is located above the first flow-blocking section 621. When the fluid flows back through the slit between the second flow-blocking section 622 and the second extension 512, it needs to overcome its own gravity to flow upward, which increases the backflow resistance of the fluid and reduces the backflow rate of the fluid.

[0060] It should be noted that the first extension 511 protrudes outward relative to the second extension 512 toward the outside of the impeller cover 510. Therefore, the first extension 511 extends radially, and the second extension 512 extends axially. The first extension 511 is turned outward relative to the second extension 512, which effectively increases the radial projection area of ​​the impeller cover 510, allowing a larger impeller body 520 to be installed on the impeller cover 510 and improving the fluid transport efficiency of the impeller 500. In addition, the flow-blocking part 620 matches the shape of the impeller cover 510. On the one hand, it facilitates the formation of slits between the first flow-blocking section 621 and the first extension 511, and between the second flow-blocking section 622 and the second extension 512. On the other hand, it facilitates the installation of the guide shroud 600 and the impeller 500, preventing the guide shroud 600 from interfering with the rotation of the impeller 500.

[0061] In addition, the first extension 511 and the second extension 512 are connected by an arc, and the first flow-blocking section 621 and the second flow-blocking section 622 are connected by an arc. This can reduce the processing difficulty of the flow guide shroud 600 and the impeller cover 510, prevent the fluid from impacting the impeller cover 510 or the flow guide shroud 600 when it is transitioning between the two slits, and reduce the delivery noise of the integrated heating pump.

[0062] In other embodiments, such as Figure 4 As shown, the surface of the flow guide shroud 600 facing the impeller cover 510 is provided with flow-blocking protrusions 630 protruding towards the impeller cover 510. By providing flow-blocking protrusions 630, the gap between the flow-blocking part 620 and the impeller cover 510 can be reduced, thereby reducing the fluid backflow rate. Furthermore, the flow-blocking protrusions 630 can block the fluid flow, increasing the fluid backflow resistance. Further, multiple flow-blocking protrusions 630 are spaced apart along the extending direction of the flow guide shroud 600. The flow-blocking protrusions 630 can block the fluid flow throughout the entire backflow path, causing the fluid to continuously experience greater backflow resistance and reducing the fluid backflow rate.

[0063] Additionally, by increasing the surface resistance of the flow-blocking part 620 and the impeller cover 510, the obstruction effect during fluid backflow can be increased, thereby reducing fluid backflow. Specifically, a resistance layer is provided on the surface of the flow-blocking part 620 and / or the impeller cover 510. The resistance layer can be applied to the surface of the flow-blocking part 620 or the impeller cover 510 by means of adhesive or coating, and the resistance layer can be made of materials such as rubber or polyester fiber.

[0064] In this invention, such as Figure 5 As shown, the integrated heating pump also includes a mounting sleeve 800, at least a portion of which is inserted into the inside of the water inlet pipe 300. The mounting sleeve 800 is located inside the water inlet pipe 300, and the flow guide 600 is located outside the water inlet pipe 300. The mounting sleeve 800 and the flow guide 600 cooperate to clamp the water inlet pipe 300 between them, so that the mounting sleeve 800, the flow guide 600, and the water inlet pipe 300 are all securely mounted on the chassis 200. In addition, in this invention, part of the mounting sleeve 800 is located inside the impeller cover 510. Since the mounting sleeve 800 is inserted into the water inlet pipe 300, the returning fluid needs to enter the water inlet pipe 300 through the opening of the mounting sleeve 800 facing the impeller 500. The gap formed between the outer surface of the mounting sleeve 800 and the inner surface of the impeller cover 510 connects the slit formed between the impeller cover 510 and the flow-blocking part 620. Therefore, the fluid return path is: slit between the impeller cover 510 and the flow-blocking part 620 - gap between the mounting sleeve 800 and the impeller cover 510 - opening of the mounting sleeve 800 - water inlet pipe 300, thereby increasing the fluid return path. The flow resistance during the fluid return process is larger, effectively reducing the fluid return volume. Under the premise of stable cooperation between the mounting sleeve 800, the water inlet pipe 300 and the flow guide 600, the fluid delivery efficiency of the integrated heating pump is improved.

[0065] Furthermore, the slit between the flow-blocking part 620 and the impeller cover 510, and the gap between the impeller cover 510 and the mounting sleeve 800 are located on both sides of the impeller cover 510. At least a portion of the slit between the flow-blocking part 620 and the impeller cover 510 extends axially, and at least a portion of the gap between the impeller cover 510 and the mounting sleeve 800 extends axially. Therefore, when the fluid flows through the slit between the flow-blocking part 620 and the impeller cover 510 into the gap between the impeller cover 510 and the mounting sleeve 800, it must first flow towards the inlet pipe 300 and then flow away from the inlet pipe 300. The fluid's turning radius is large, increasing the backflow resistance and effectively reducing fluid loss. Moreover, at the end of the backflow path, the fluid flows away from the inlet pipe 300, and the mounting sleeve 800 and the impeller cover 510 together reintroduce the fluid into the receiving cavity 110 to further prevent the fluid from flowing back into the inlet pipe 300, thereby improving the fluid transport efficiency.

[0066] It should be noted that in other technologies, the mounting sleeve 800 cooperates with the chassis 200 to clamp the water inlet pipe 300 between the two. The water inlet pipe 300 is first installed on the chassis 200. During the process of inserting the mounting sleeve 800 into the water inlet pipe 300, due to the flexibility of the water inlet pipe 300, the water inlet pipe 300 is easy to detach from the chassis 200, which makes the installation of the mounting sleeve 800 inconvenient. In addition, the size of the mounting sleeve 800 is limited by the water inlet pipe 300 and cannot exceed the outer diameter of the water inlet pipe 300. Therefore, the mounting sleeve 800 cannot block the water inlet pipe 300's delivery port 310 from the outside of the water inlet pipe 300 and cannot overcome the problem of fluid delivery loss caused by fluid backflow. In this invention, the flow guide 600 and the mounting sleeve 800 cooperate to clamp the water inlet pipe 300. The flow guide 600 is first installed on the chassis 200, and then the water inlet pipe 300 is installed inside the flow guide 600. The water inlet pipe 300 and the flow guide 600 can mutually limit each other in the axial direction to prevent the water inlet pipe 300 from detaching when the mounting sleeve 800 is inserted into it. Furthermore, the flow guide 600 is located outside the water inlet pipe 300 to block the delivery port 310 of the water inlet pipe 300, thereby preventing fluid backflow.

[0067] The installation method of the flow guide 600 to the chassis 200 is not limited to snap-fit, plug-in, screw-fit, etc. For example, the flow guide 600 is located between the chassis 200 and the pump housing 100 and contacts the chassis 200 axially; the flow guide 600 is threadedly connected to the pump housing 100; or, as... Figure 5 As shown, the chassis 200 includes a connected mounting platform 210 and a flange 220. The flange 220 is arranged axially, and the mounting platform 210 is arranged radially. The mounting platform 210 is axially connected to the pump housing 100, and the flange 220 is axially connected to the mounting platform 210. The flange 220 has a through hole in the axial direction. The flow guide 600 is sleeved on the outside of the flange 220 and the flange 220 is sleeved on the outside of the water inlet pipe 300. The water inlet pipe 300 and the flow guide 600 are mutually limited in the axial direction.

[0068] The axial limiting of the mounting sleeve 800 and the deflector 600 can be achieved in the following ways: the connecting part 610 abuts against the deflector 600, and there is a large frictional force between the outer surface of the connecting part 610 and the deflector 600. This frictional force forms a resistance that prevents the relative movement of the mounting sleeve 800 and the deflector 600, thereby achieving the axial limiting of the connecting part 610 and the deflector 600; or, the outer surface of the connecting part 610 is set as a slope, and the deflector 600 has an inner surface that matches the slope, so as to increase the contact area between the connecting part 610 and the deflector 600, thereby increasing the frictional resistance between the two; or, the outer wall of the connecting part 610 is provided with a flexible pad, which can deform under compression and be clamped between the deflector 600 and the connecting part 610, so as to increase the holding force between the deflector 600 and the connecting part 610, thereby achieving the axial limiting of the connecting part 610 and the deflector 600.

[0069] In other embodiments, the axial limiting of the flow guide 600 and the mounting sleeve 800 is achieved in the following way: the outer wall of the water inlet pipe 300 is provided with a first limiting flange 310 and a second limiting flange 320 at axial intervals, the flange 220 and part of the connection portion 610 of the flow guide 600 are located between the first limiting flange 310 and the second limiting flange 320, and are limited axially by the first limiting flange 310 and the second limiting flange 320; when the mounting sleeve 800 is inserted into the water inlet pipe 300, since the water inlet pipe 300 is simultaneously limited by the connection portion 610, the flange 220 and the mounting platform 210, it is not easy to move, so that the mounting sleeve 800 can be inserted into the water inlet pipe 300 more conveniently.

[0070] The specific assembly process of the integrated heating pump is as follows: First, insert the flange 220 into the interior of the guide shroud 600, so that the guide shroud 600 abuts against the mounting platform 210 in the axial direction, and the flange 220 fits against the guide shroud 600 in the radial direction; then, insert the water inlet pipe 300 into the interior of the flange 220. Because the water inlet pipe 300 is flexible and can deform to a certain extent, it can be easily inserted into the flange 220. The flange 220 and the connecting part 610 are located between the first limiting flange 310 and the second limiting flange 320. At this time, the first limiting flange 310 abuts against the mounting platform 210. The second limiting flange 320 abuts against the connecting part 610 and the flange 220, and the flange 220 is attached to the outer wall of the water inlet pipe 300; then the mounting sleeve 800 is inserted from the delivery port 310 of the water inlet pipe 300. Since the water inlet pipe 300 is limited by the combination of the flange 220, the flow guide 600 and the mounting platform 210, the mounting sleeve 800 can be quickly inserted into the water inlet pipe 300, and the outer wall of the mounting sleeve 800 is attached to the inner wall of the water inlet pipe 300, so as to mutually limit the water inlet pipe 300, the flange 220 and the flow guide 600 in the radial direction, thereby realizing the fixation and sealing of the water inlet pipe 300.

[0071] In one embodiment, such as Figure 5As shown, the mounting sleeve 800 includes a connected plug portion 810 and a guide portion 820. Part of the plug portion 810 is inserted into the water inlet pipe 300. The connecting portion 610 and the plug portion 810 abut against each other along the radial direction of the water inlet pipe 300. The guide portion 820 is located inside the impeller cover 510. The gap between the guide portion 820 and the impeller cover 510 forms a flow-blocking channel to prevent fluid backflow and introduces the fluid into the receiving cavity 110. The connection between the guide portion 820 and the impeller 500 is more compact, enabling the integration of the overall structure of the heat pump. In the radial direction, the mounting sleeve 800, the water inlet pipe 300, the flange 220, and the guide shroud 600 are nested in sequence. The water inlet pipe 300 and the flange 220 are clamped between the mounting sleeve 800 and the guide shroud 600, achieving mutual radial limiting. The connecting portion 610 is located axially between the mounting platform 210 and the first limiting flange 310 and is limited by the combination of the mounting platform 210 and the first limiting flange 310, so that the mounting sleeve 800, the chassis 200, the water inlet pipe 300, and the guide shroud 600 combine to form a stable structure and achieve a seal on the water inlet pipe 300.

[0072] Furthermore, such as Figure 6 As shown, one of the connecting part 610 and the insertion part 810 has a groove 611 along the radial direction of the water inlet pipe 300, and the other has a protrusion 811 along the radial direction of the water inlet pipe 300. The protrusion 811 is inserted into the groove 611 and abuts against the groove wall of the groove 611 in the axial direction, realizing the mutual axial positioning of the connecting part 610 and the insertion part 810; thus, the stability of the connection between the guide cover 600 and the mounting sleeve 800 can be further improved. Both the groove 611 and the protrusion 811 are arc-shaped. When the mounting sleeve 800 is installed into the water inlet pipe 300, the protrusion 811 smoothly transitions into the groove, which can reduce the installation difficulty of the mounting sleeve 800.

[0073] In addition, such as Figure 5 As shown, the portion of the insertion part 810 exposed outside the water inlet pipe 300 protrudes radially to the outside of the water inlet pipe 300 and abuts against the connecting part 610, so that the mounting sleeve 800 and the flow guide shroud 600 form an axial and radial limiting structure. The first limiting flange 310 is limited in both the axial and radial directions between the insertion part 810 and the connecting part 610, thereby achieving a stable installation of the water inlet pipe 300. Furthermore, by setting the portion of the insertion part 810 as a protruding structure in the radial direction, a space is created between the flow blocking part 620 and the guide part 820 for the impeller cover 510 to be inserted, and a slit is formed to prevent fluid backflow.

[0074] In this invention, the guide portion 820 is located inside the impeller cover 510, and the inner diameter of the guide portion 820 gradually increases in the direction toward the impeller 500. In this way, the fluid discharged from the guide portion 820 is directly introduced into the interior of the impeller 500 and flows under the drive of the impeller 500, resulting in higher fluid transport efficiency. Furthermore, since the guide portion 820 is flared, the inner cavity of the guide portion 820 can maximize the matching with the cross-section of the impeller body 520, resulting in a larger contact area between the fluid and the impeller 500 when the fluid flows out, which can increase the amount of fluid flow driven by the impeller 500 per unit time and improve fluid transport efficiency.

[0075] In addition, the outer diameter of the plug part 810 is larger than the inner diameter of the water inlet pipe 300. After the plug part 810 is inserted into the water inlet pipe 300, the water inlet pipe 300 has a certain degree of flexibility. The water inlet pipe 300 is deformed by the compression of the plug part 810, so that the water inlet pipe 300 is clamped between the flange 220 and the mounting sleeve 800. The water inlet pipe 300 and the plug part 810 are tightly abutted, which can prevent the mounting sleeve 800 from falling off and achieve a seal for the water inlet pipe 300. When the water inlet pipe 300 is deformed by the compression of the mounting sleeve 800, the fit between the water inlet pipe 300 and the flange 220 and the guide cover 600 is tighter. The flange 220 and the guide cover 600 clamp the water inlet pipe 300, so that a seal is formed between the water inlet pipe 300 and the guide cover 600, between the water inlet pipe 300 and the flange 220, and between the water inlet pipe 300 and the guide cover 600.

[0076] In this invention, the heating element 700 heats the fluid using an immersion heating method. A portion of the heating element 700 extends into the receiving cavity 110 and is coiled outside the flow guide 600. The heating element 700 directly contacts and exchanges heat with the fluid entering the receiving cavity 110, resulting in high heating efficiency. The flow guide 600, water inlet pipe 300, and mounting sleeve 800 do not directly contact the heating element 700, ensuring high service life and reliability. Furthermore, the flow guide 600, chassis 200, water inlet pipe 300, and mounting sleeve 800 form a stable sealing structure, preventing fluid leakage.

[0077] The present invention also provides a washing device, which can be an electrical appliance such as a washing machine or a dishwasher. The washing device includes a washing unit and the aforementioned integrated heating pump. The integrated heating pump receives water supplied from the outside, which is then transported to the receiving cavity 110 through the water inlet pipe 300 for heating, and then transported to the washing unit through the water outlet pipe 400. The washing unit uses the heated fluid to perform washing, thereby improving washing efficiency and cleanliness.

[0078] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An integrated heating pump, characterized in that, include: Pump casing, having a receiving cavity; The chassis is covered and sealed to the pump casing; A water inlet pipe is connected to the chassis and communicates with the receiving cavity; The water outlet pipe is connected to the pump casing and communicates with the receiving cavity; An impeller, located within the receiving cavity, is used to draw fluid from the receiving cavity out of the outlet pipe; A flow guide shroud is connected to the chassis. The flow guide shroud is sleeved on the outside of the water inlet pipe, and at least part of the flow guide shroud surrounds the outside of the impeller. The flow guide shroud includes a connecting part and a flow-blocking part connected together. The impeller includes an impeller cover. The connecting part is connected to the chassis. The flow-blocking part surrounds the outside of the impeller cover and forms a slit with the impeller cover. The mounting sleeve, at least a portion of which is inserted into the interior of the inlet pipe, is clamped between the mounting sleeve and the flow guide, and a portion of which is located inside the impeller cover; the slit between the flow-blocking part and the impeller cover, and the gap between the impeller cover and the mounting sleeve, are located on both sides of the impeller cover, and at least a portion of the slit between the flow-blocking part and the impeller cover extends axially, and at least a portion of the gap between the impeller cover and the mounting sleeve extends axially.

2. The integrated heating pump according to claim 1, characterized in that, The flow-blocking part includes a first flow-blocking section and a second flow-blocking section, and the impeller cover includes a first extension and a second extension. The first flow-blocking section surrounds the outside of the first extension, and the second flow-blocking section surrounds the outside of the second extension. The extension directions of the first flow-blocking section and the second flow-blocking section form an angle with each other.

3. The integrated heating pump according to claim 2, characterized in that, The second flow-blocking section is connected to the end of the first flow-blocking section facing the water inlet pipe. The second flow-blocking section extends axially along the water inlet pipe, and the first flow-blocking section extends radially along the water inlet pipe.

4. The integrated heating pump according to claim 1, characterized in that, The surface of the flow guide shroud facing the impeller cover has flow-blocking protrusions that protrude toward the impeller cover.

5. The integrated heating pump according to claim 1, characterized in that, The mounting sleeve includes a connected plug and a guide. Part of the plug is inserted into the water inlet pipe. The connecting part and the plug abut against each other radially along the water inlet pipe. The guide is located inside the impeller cover.

6. The integrated heating pump according to claim 5, characterized in that, One of the connecting part and the plug-in part has a groove along the radial direction of the water inlet pipe, and the other has a protrusion along the radial direction of the water inlet pipe, with the protrusion inserted into the groove.

7. The integrated heating pump according to claim 1, characterized in that, The mounting sleeve includes a guide portion located inside the impeller cover, the guide portion having an inner diameter that gradually increases in the direction toward the impeller.

8. The integrated heating pump according to claim 1, characterized in that, The chassis includes a connected mounting platform and a flange. The flange is arranged along the axial direction of the water inlet pipe, and the mounting platform is arranged along the radial direction of the water inlet pipe. The flange is sleeved on the outside of the water inlet pipe. The outside of the water inlet pipe is provided with a first limiting flange and a second limiting flange spaced apart. The flange and part of the mounting platform are limited between the first limiting flange and the second limiting flange. The flow guide is sleeved on the outside of the flange, and the connecting part is limited between the mounting platform and the first limiting flange.

9. A washing device, characterized in that, include: Washing device, used for washing; The integrated heating pump according to any one of claims 1 to 8 is installed in the washing device and provides heated fluid to the washing device.

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