Heating pump for dish washing machine
By installing multiple layers of filters and removable screens at the inlet and outlet of the dishwasher's heating pump, the problems of impurity wear and pipe blockage caused by impurities entering are solved, thus achieving stable operation of the heating pump and normal washing function of the dishwasher.
Patent Information
- Application Number
- CN202422954242.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Traditional dishwashers using heating pumps are prone to impeller jamming or wear when impurities enter, affecting water flow and washing performance. Furthermore, the accumulation of impurities can cause pipe blockage, reducing cleanliness and increasing maintenance costs.
A multi-layer interception assembly consisting of a coarse filter, a fine filter, and an ultrafiltration membrane is installed at the inlet of the heating pump, and a detachable screen is installed at the outlet. The interception assembly and the screen are easily disassembled and installed through a threaded connection.
It effectively prevents impurities from entering the pump body, protects key components, prevents small parts from flowing out, ensures stable operation of the heating pump, extends service life, and reduces maintenance costs.
Smart Images
Figure CN223469485U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a dishwasher technical field especially relates to a heating pump for dishwasher. BACKGROUND
[0002] In modern families and commercial catering places, the use of dishwashers is increasingly widespread, which greatly improves the efficiency of dish cleaning. The heating pump for dishwasher as a key component of the dishwasher hot water supply system plays a crucial role in the normal operation and washing effect of the dishwasher.
[0003] Traditional heating pumps for dishwashers usually focus on realizing the functions of circulating flow and heating of water. However, in actual use, the water in the dishwasher often contains various impurities. These impurities come from a wide range of sources, such as food residues left on dishes, undissolved components in detergents, etc. When water containing these impurities enters the heating pump, a series of problems will arise.
[0004] Firstly, large-particle impurities may enter the internal components of the heating pump along with the water flow. At the inlet of the heating pump, if there is no effective interception measure, impurities may enter the impeller chamber. Once the impeller is stuck or worn by these large impurities, the rotation efficiency of the impeller will be affected, resulting in a decrease in water flow, which in turn affects the washing effect of the entire dishwasher. At the same time, the motor will consume more electric energy to overcome the additional load caused by the impeller obstruction, and it may even be damaged due to long-term overload. Secondly, at the outlet of the heating pump, if impurities flow out with hot water, these impurities may accumulate in the dishwasher's spray arms or other water circulation pipelines. The accumulated impurities can cause pipeline blockage, making it difficult for hot water to be evenly sprayed onto the dishes, reducing the cleaning level of the dishes. Moreover, after the pipeline is blocked, the maintenance and cleaning work is not only tedious, but also increases the use cost and reduces the convenience of using the dishwasher.
[0005] In order to solve the above problems, the utility model improves the heating pump for dishwasher, and sets up an interception structure at its inlet and outlet, which is specially used for intercepting large impurities, to ensure that the heating pump can run stably and efficiently for a long time, and at the same time, to ensure the normal washing function and service life of the dishwasher. SUMMARY
[0006] The utility model discloses a heating pump for dish-washing machine, which is characterized by the detachable intercepting assembly composed of the coarse filter screen, the fine filter screen and the ultrafiltration membrane arranged in the inlet, which can filter the water entering the heating pump in multiple levels. The multi-layer filtering mechanism can greatly reduce the impurities entering the pump body, effectively prevent the impurities from damaging the key components such as the impeller and the motor in the pump, and prevent the small parts debris (such as the impeller fragments and the sealing material debris) in the heating pump from flowing out with the hot water by arranging the detachable screen mesh at the outlet, so as to ensure that the heating pump can operate stably and efficiently for a long time, and ensure the normal washing function and service life of the dish-washing machine.
[0007] In order to solve the above technical problems, the utility model discloses a heating pump for dish-washing machine, which is characterized by the detachable intercepting assembly composed of the coarse filter screen, the fine filter screen and the ultrafiltration membrane arranged in the inlet, which can filter the water entering the heating pump in multiple levels. The multi-layer filtering mechanism can greatly reduce the impurities entering the pump body, effectively prevent the impurities from damaging the key components such as the impeller and the motor in the pump, and prevent the small parts debris (such as the impeller fragments and the sealing material debris) in the heating pump from flowing out with the hot water by arranging the detachable screen mesh at the outlet, so as to ensure that the heating pump can operate stably and efficiently for a long time, and ensure the normal washing function and service life of the dish-washing machine.
[0008] In order to achieve the above object, the utility model adopts the following technical scheme:
[0009] A heating pump for dish-washing machine, comprising a heating pump body, wherein an inlet and an outlet are arranged on the heating pump body respectively, a detachable intercepting assembly is arranged in the inlet, and a detachable screen mesh is arranged in the outlet.
[0010] Preferably, the intercepting assembly comprises a coarse filter screen, a fine filter screen and an ultrafiltration membrane, and the coarse filter screen, the fine filter screen and the ultrafiltration membrane are arranged in the middle part of the screen mesh from outside to inside.
[0011] Preferably, the inlet and the intercepting assembly are connected through a first connecting cylinder, and the outlet and the screen mesh are connected through a supporting inner cylinder and a second connecting cylinder.
[0012] Preferably, a first built-in threaded groove matched with the first connecting cylinder is arranged in the inlet opening, the first connecting cylinder is connected to the outer ring of the screen mesh and is connected to the first built-in threaded groove through threaded rotation, the supporting inner cylinder is connected to the cylinder wall of the second connecting cylinder, the screen mesh is connected to the opening of the supporting inner cylinder, a second built-in threaded groove matched with the second connecting cylinder component is arranged in the outlet opening, and the second connecting cylinder is connected to the second built-in threaded groove through threaded rotation.
[0013] Preferably, limit assemblies are arranged at the cylinder openings of the outer ends of the first connecting cylinder and the second connecting cylinder.
[0014] Preferably, the limit assembly comprises an outer positioning ring and a protruding cylinder, the protruding cylinder and the outer positioning ring are designed in an integral structure, and the outer positioning ring is connected to the cylinder openings of the second connecting cylinder and the first connecting cylinder respectively.
[0015] Preferably, arc-shaped grooves are uniformly arranged on the outer wall of the protruding cylinder.
[0016] Preferably, the inlet cylinder mouth and the outlet cylinder mouth are provided with contact surfaces capable of contacting the outer positioning ring component, and sealing rings are arranged on the two contact surfaces.
[0017] Preferably, the sealing ring is inserted into the outer positioning ring groove through the corresponding annular clamping insert.
[0018] Preferably, the two ends of the interception assembly are designed in a corrugated shape and are provided with a plurality of openings for water flow.
[0019] Compared with the prior art, the utility model has the following beneficial effects:
[0020] The heating pump for the dish washing machine provided by the application can perform multi-level filtration on water entering the heating pump by arranging a detachable interception assembly composed of a coarse filter screen, a fine filter screen and an ultrafiltration membrane in the inlet. The multi-level filtration mechanism can greatly reduce impurities entering the pump body, effectively preventing the impurities from damaging key components such as the impeller and the motor in the pump, and the detachable screen mesh arranged at the outlet can prevent small parts debris (such as impeller fragments and sealing material debris) possibly generated in the heating pump from flowing out with hot water, so as to ensure that the heating pump can operate stably and efficiently for a long time and protect the normal washing function and service life of the dish washing machine.
[0021] The interception assembly of the inlet is threadedly connected with the first built-in threaded groove in the inlet through the first connecting cylinder, and the screen mesh of the outlet is threadedly connected with the second built-in threaded groove in the outlet through the supporting inner cylinder and the second connecting cylinder. The threaded connection mode makes the interception assembly and the screen mesh convenient to disassemble and assemble. When it is necessary to clean or replace the filter screen and the screen mesh, the user does not need to use special tools, but only needs to complete the operation through simple rotation, which greatly reduces the maintenance cost and difficulty.
[0022] The application sets a limiting component at the outer end cylinder mouth of the first connecting cylinder and the second connecting cylinder, and the limiting component comprises an outer positioning ring and a protruding cylinder. The outer positioning ring can prevent the connecting cylinder from falling off during use, thereby ensuring the stability of the structure. Meanwhile, sealing rings are arranged on the surfaces of the inlet cylinder mouth and the outlet cylinder mouth that contact the outer positioning ring. The sealing rings are installed in cooperation with the arc-shaped grooves on the outer positioning ring through annular clamping inserts. This design effectively ensures the sealing performance of the inlet and the outlet and prevents water leakage. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.
[0024] Figure 1 It is an overall structure schematic diagram of the present application.
[0025] Figure 2 It is a split overall structure schematic diagram of the present application.
[0026] Figure 3 It is an import split local structure schematic diagram of the present application.
[0027] Figure 4 It is an outlet split local structure schematic diagram of the present application.
[0028] Figure 5 It is an interception assembly, a first connecting cylinder and a sealing ring split local structure schematic diagram of the present application.
[0029] Figure 6 It is a second connecting cylinder and a screen split local structure schematic diagram of the present application.
[0030] Figure 7 It is a support inner cylinder and a second connecting cylinder split local structure schematic diagram of the present application.
[0031] Figure 8 It is an enlarged structure schematic diagram of A in the present application. Figure 7
[0032] Figure number explanation: 1, heating pump body; 2, import; 201, first built-in thread groove; 3, outlet; 301, second built-in thread groove; 4, interception assembly; 401, first connecting cylinder; 4001, coarse filter screen; 4002, fine filter screen; 4003, ultrafiltration membrane; 5, screen; 501, support inner cylinder; 5001, second connecting cylinder; 6, limiting assembly; 601, outer positioning ring; 602, convex cylinder; 7, sealing ring; 701, annular clamping insert. DETAILED DESCRIPTION
[0033] The present application will be described in further detail below with reference to the drawings.
[0034] The following description is used to disclose the present application so that those skilled in the art can implement the present application. The preferred embodiments in the following description are only examples, and other obvious modifications can be made by those skilled in the art. The basic principles defined in the following description can be used in other embodiments, modifications, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present application.
[0035] Those skilled in the art should understand that in the disclosure of the present application, the orientations or positions indicated by the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or position relationships shown in the drawings, which are only for the convenience of the simplified description of the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the present application.
[0036] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number. Embodiment
[0037] Please refer to Figures 1-8 A heating pump for a dishwasher comprises a heating pump body 1, an inlet 2 and an outlet 3 are arranged on the heating pump body 1 respectively, a detachable intercepting assembly 4 is arranged in the inlet 2, and a detachable screen 5 is arranged in the outlet 3.
[0038] I. Overall structure and component overview
[0039] The heating pump for a dishwasher of the present application mainly comprises a heating pump body 1, an inlet 2, an outlet 3, an intercepting assembly 4, a screen 5, a limiting assembly 6 and a sealing ring 7 and the like.
[0040] II. Heating pump body 1 and inlet and outlet structure
[0041] Heating pump body 1
[0042] The heating pump body 1 is the core support structure of the whole heating pump, and is usually made of corrosion-resistant metal material, such as stainless steel 304 or 316. Stainless steel has good strength and corrosion resistance, and can withstand the harsh environment of high temperature, high humidity and containing detergent and other chemical substances in the dishwasher, to ensure the long-term stable operation of the heating pump body 1.
[0043] Inlet 2 and outlet 3
[0044] The inlet 2 and the outlet 3 are arranged on the heating pump body 1 respectively. The inlet 2 is used for introducing water to be heated, and the outlet 3 is used for discharging heated hot water. The shapes of the inlet 2 and the outlet 3 are generally circular, and the inner diameters thereof are designed according to the flow requirements of the heating pump, generally between 2-5 centimeters.
[0045] III. Connection of the inlet 2 and the interception assembly 4
[0046] Structure and material of the interception assembly 4
[0047] The interception assembly 4 is arranged in the inlet 2 and has a detachable structure, facilitating cleaning and replacement. The interception assembly 4 is composed of a coarse filter screen 4001, a fine filter screen 4002 and an ultrafiltration membrane 4003.
[0048] The coarse filter screen 4001 is made of stainless steel and has a mesh size of 2-5 millimeters, which can effectively intercept larger solid impurities such as food residues. The wear resistance and corrosion resistance of stainless steel ensure that the coarse filter screen 4001 can maintain good filtering performance under long-term water flow impact.
[0049] The fine filter screen 4002 can be made of polyester fiber or stainless steel and has a mesh size of 0.5-1.5 millimeters, which is used to further intercept smaller particulate impurities. Polyester fiber has good flexibility and filtering effect, while stainless steel has higher strength and durability.
[0050] The ultrafiltration membrane 4003 is generally made of high molecular materials such as polysulfone and polyether sulfone, and has a pore size of 0.1-0.5 microns, which can remove small suspended particles and microorganisms, ensuring the cleanliness of water entering the heating pump.
[0051] The three layers of filter screens are arranged from outside to inside at the middle part of the inlet 2, forming a multi-layer filtering system that maximally intercepts impurities in water.
[0052] The coarse filter screen 4001 and the fine filter screen 4002 are arranged successively on the side of the ultrafiltration membrane 4003, which can contact impurities first to reduce large particles and reduce damage to the ultrafiltration membrane, thereby protecting the ultrafiltration membrane and prolonging the overall service life.
[0053] Connection mode of the interception assembly 4 and the inlet 2
[0054] The interception assembly 4 is connected to the inlet 2 through a first connecting cylinder 401. The inlet 2 is provided with a first built-in threaded groove 201. The first connecting cylinder 401 is made of the same metal material as the inlet 2, ensuring the strength and corrosion resistance of the connection. The first connecting cylinder 401 is connected to the outer ring of the interception assembly 4 and is screwed into the first built-in threaded groove 201. This threaded connection mode is simple to operate, and users only need to rotate to easily disassemble or install the interception assembly 4 when maintenance is needed.
[0055] IV. Connection of outlet 3 and screen 5
[0056] Structure and material of screen 5
[0057] The screen 5 is arranged in the outlet 3 to prevent small parts such as fragments of impeller, debris of sealing material, etc. inside the heating pump from flowing out with the water flow. The screen 5 is generally made of stainless steel, and the mesh size is between 0.5-2 mm, and the specific size depends on the size of the debris that may be generated inside the heating pump. The stainless steel material ensures the stability and durability of the screen 5 in the high-temperature water flow environment.
[0058] Connection method of screen 5 and outlet 3
[0059] The screen 5 is connected to the outlet 3 through the support inner cylinder 501 and the second connecting cylinder 5001. The support inner cylinder 501 is connected to the cylinder wall of the second connecting cylinder 5001, and the screen 5 is connected to the opening of the support inner cylinder 501. The second built-in threaded groove 301 is arranged in the opening of the outlet 3, and the second connecting cylinder 5001 is connected to the second built-in threaded groove 301 through threaded rotation. The support inner cylinder 501 and the second connecting cylinder 5001 can be made of the same stainless steel material as the screen 5 to ensure the strength and corrosion resistance of the entire connection structure.
[0060] V. Design and function of limiting assembly 6
[0061] Structure and material of limiting assembly 6
[0062] The limiting assembly 6 includes an outer positioning ring 601 and a protruding cylinder 602, which are designed as an integrated structure. The outer positioning ring 601 and the protruding cylinder 602 are usually made of engineering plastics such as polyoxymethylene POM or nylon PA. These engineering plastics have good mechanical properties, wear resistance and corrosion resistance, and are relatively light, which will not cause additional burden to the operation of the heating pump.
[0063] The outer positioning ring 601 is connected to the cylinder opening of the second connecting cylinder 5001 and the first connecting cylinder 401 at the outer end through a fixed manner, respectively, to prevent the second connecting cylinder 5001 and the first connecting cylinder 401 from being detached from the outlet 3 and the inlet 2 due to water flow impact or other external forces during use.
[0064] The protruding cylinder 602 is arranged with arc-shaped grooves on the outer wall, and the protruding cylinder 602 can protrude outside the outlet 3 and the inlet 2 to prevent hand slipping during installation.
[0065] VI. Installation and sealing principle of sealing ring 7
[0066] Structure and material of sealing ring 7
[0067] The sealing ring 7 is made of rubber material, such as fluororubber or silicone rubber. The fluororubber has excellent high-temperature resistance, chemical corrosion resistance and aging resistance, and can adapt to the high-temperature environment in the dishwasher and the environment containing detergent. The silicone rubber has good elasticity and sealing property, and can effectively prevent water leakage.
[0068] The sealing ring 7 is provided with an annular clamping element 701, which is integrally formed with the sealing ring 7 and is usually made of the same rubber material as the sealing ring 7.
[0069] The cooperation mode of the sealing ring 7 and the limiting assembly 6
[0070] The inlet 2 and the outlet 3 are both provided with a contact surface capable of contacting the outer limiting ring 601, and the sealing ring 7 is arranged on the two contact surfaces. The annular clamping element 701 is inserted into the groove of the outer limiting ring 601, so as to install the sealing ring 7 at the inlet 2 and the outlet 3. Through the close cooperation mode, the sealing ring 7 can effectively fill the gap between the inlet 2, the outlet 3 and the connecting component, prevent water leakage, and ensure the sealing property of the heating pump.
[0071] Seven, special design of both ends of the intercepting assembly 4
[0072] Corrugated design and opening
[0073] Both ends of the intercepting assembly 4 are designed in a corrugated shape. The corrugated design increases the contact area between the intercepting assembly 4 and the inner wall of the inlet 2, so that the installation of the intercepting assembly 4 in the inlet 2 is more stable.
[0074] Meanwhile, a plurality of openings are arranged on the corrugated structure of both ends of the intercepting assembly 4. The diameter of the openings is generally between 1-3 mm. The openings can ensure the flow of water through the intercepting assembly 4, and avoid that the existence of the filter screen causes too large water flow resistance, which affects the water inlet efficiency of the heating pump.
[0075] Through the above detailed design and connection mode, the heating pump for the dishwasher of the utility model is provided with effective intercepting structures at the inlet and outlet, which can not only effectively intercept large impurities in water, but also ensure the sealing property, stability and durability of the heating pump through the reasonable design and material selection of the components. Meanwhile, the detachable design of the components facilitates the maintenance and replacement operation.
[0076] Those skilled in the art should understand that the embodiments of the utility model shown in the above description and the drawings are only examples and do not limit the utility model. The purpose of the utility model has been completely and effectively realized. The function and structural principle of the utility model have been shown and explained in the embodiments, and the embodiments of the utility model can have any deformation or modification without departing from the principle.
Claims
1. A heating pump for a dishwasher, characterized by: Including heating pump body (1), the heating pump body (1) is provided with import (2) and outlet (3) respectively, the import (2) is provided with detachable intercepting component (4), the outlet (3) is provided with detachable screen (5).
2. A heating pump for a dishwasher according to claim 1, characterized in that: The intercepting component (4) includes a coarse filter screen (4001), a fine filter screen (4002), and an ultrafiltration membrane (4003). The coarse filter screen (4001), the fine filter screen (4002), and the ultrafiltration membrane (4003) are arranged from the outside to the inside of the middle part of the screen (5).
3. A heating pump for a dishwasher according to claim 2, characterized in that: The import (2) and the intercepting component (4) are connected by a first connecting cylinder (401), and the outlet (3) and the screen (5) are connected by a support inner cylinder (501) and a second connecting cylinder (5001).
4. A heating pump for a dishwasher according to claim 3, characterized in that: The import (2) is provided with a first built-in threaded groove (201) matched with the first connecting cylinder (401). The first connecting cylinder (401) is connected to the outer ring of the screen (5) and is screwedly and rotationally connected to the first built-in threaded groove (201). The support inner cylinder (501) is connected to the cylinder wall of the second connecting cylinder (5001), and the screen (5) is connected to the opening of the support inner cylinder (501). The outlet (3) is provided with a second built-in threaded groove (301) matched with the second connecting cylinder (5001). The second connecting cylinder (5001) is screwedly and rotationally connected to the second built-in threaded groove (301).
5. A heating pump for a dishwasher according to claim 4, characterized in that: The outer ends of the first connecting cylinder (401) and the second connecting cylinder (5001) are both provided with a limiting component (6) for limiting.
6. A heating pump for a dishwasher according to claim 5, characterized in that: The limiting component (6) includes an outer positioning ring (601) and a protruding cylinder (602). The protruding cylinder (602) and the outer positioning ring (601) are designed in an integral structure. The outer positioning ring (601) is connected to the outer ends of the second connecting cylinder (5001) and the first connecting cylinder (401).
7. A heating pump for a dishwasher according to claim 6, characterized in that: The outer wall of the protruding cylinder (602) is uniformly provided with an arc-shaped groove.
8. The heating pump for a dishwasher according to claim 2, wherein: The outer ends of the first connecting cylinder (401) and the second connecting cylinder (5001) are both provided with a limiting component (6) for limiting.
9. A heating pump for a dishwasher according to claim 8, characterized in that: The sealing ring (7) is inserted into the groove of the outer positioning ring (601) through the annular clamping insert (701).
10. The heating pump for a dishwasher according to claim 1, wherein: The two ends of the intercepting component (4) are designed in a corrugated shape and are provided with a plurality of openings for water flow.