Heating pump and dish washing machine

Abstract

The utility model discloses a heating pump and a dish-washing machine, and relates to the technical field of kitchen heating household appliances, the heating pump comprises a pump shell and a heating assembly, one end of the pump shell is provided with a mounting port, and the side part of the pump shell is provided with a water outlet; the heating assembly comprises a heat conduction piece and a heating piece arranged on the heat conduction piece, the heat conduction piece comprises an annular cover body and an extension part, the annular cover body covers the installation opening so as to define a cavity with the pump shell, the extension part extends into the cavity from the annular cover body, the heating piece is arranged on the extension part, the heating piece is arranged on the extension part, and the top space of the pump shell is not occupied. Due to the fact that the heating part is arranged on the extending part and the extending part extends into the cavity formed in the pump shell, the heating part is closer to water flow and can directly heat flowing water, heating efficiency is improved, loss in the heat transfer process is reduced, the heat energy utilization rate is improved, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen heating appliances, in particular to a heating pump and a dishwasher. Background Art

[0002] In automatic dishwashers, one design uses a heat pump to simultaneously transport and heat water. Traditional designs typically install the heating element on top of the pump housing. While this layout achieves the heating function, it also presents several challenges. First, the top-mounted location of the heating element increases the overall height of the heat pump, occupying more vertical space. With the trend toward compact design in modern home appliances, this tall structure is difficult to adapt to installation environments with strict height requirements, limiting the flexibility of the device's internal component layout. Furthermore, the top-mounted location restricts the size of the heating element, particularly in terms of length. This limitation directly reduces heating efficiency, as shorter heating elements cannot provide sufficient heat to quickly reach the required temperature. Consequently, achieving the same heating effect requires more energy, reducing overall energy efficiency and increasing operating costs. Therefore, to address these issues, finding a design solution that both reduces the height of the heat pump and improves heating efficiency is crucial. Utility Model Content

[0003] The main purpose of the utility model is to provide a heating pump and a dishwasher, aiming to provide a heating pump that reduces the height of the heating pump while improving the heating efficiency.

[0004] To achieve the above-mentioned purpose, the heating pump proposed by the present invention comprises:

[0005] A pump housing, one end of which is provided with a mounting port, and a side portion of the pump housing is provided with a water outlet; and

[0006] The heating component includes a heat-conducting member and a heating member arranged on the heat-conducting member. The heat-conducting member includes an annular cover body and an extension portion. The annular cover body is arranged on the mounting port to form a cavity together with the pump casing. The extension portion extends from the annular cover body into the cavity, and the heating member is arranged on the extension portion.

[0007] In one embodiment, the extension portion is extended along the circumference of the pump housing.

[0008] In one embodiment, an opening is provided on the extension portion, and the opening is arranged toward the water outlet.

[0009] In one embodiment, the extension portion is spaced apart from the pump casing to separate the cavity into an impeller cavity spaced apart and a heat exchange cavity disposed outside the impeller cavity, and the impeller cavity is communicated with the heat exchange cavity.

[0010] In one embodiment, a connecting groove connecting the impeller cavity and the heat exchange cavity is provided on the extension portion.

[0011] In one embodiment, the communicating groove is extended along the circumference of the pump housing.

[0012] In one embodiment, the extension portion is integrally formed with the annular cover.

[0013] In one embodiment, the heat conducting member is a metal heat conducting member; and / or the pump housing is a plastic pump housing.

[0014] In one embodiment, the heat conducting member is an aluminum heat conducting member.

[0015] In one embodiment, the heating element includes a heating body and two power connection ends correspondingly arranged on the heating body, the heating body extends along the circumference of the extension portion, and the two power connection ends are at least partially located outside the annular cover.

[0016] In one embodiment, the heating body is embedded in the extension portion.

[0017] In one embodiment, the two power terminals are adjacent and arranged side by side; and / or,

[0018] The two power connection ends are adjacent and arranged side by side, the heating body includes multiple heating segments, the multiple heating segments are arranged in parallel and extend along the circumference of the extension portion, two adjacent heating segments are connected end to end, and the head end of one heating segment and the tail end of the other heating segment are correspondingly connected to the two power connection ends.

[0019] The present invention further provides a dishwasher, comprising a heating pump, wherein the heating pump comprises:

[0020] A pump housing, one end of which is provided with a mounting port, and a side portion of the pump housing is provided with a water outlet; and

[0021] The heating component includes a heat-conducting member and a heating member arranged on the heat-conducting member. The heat-conducting member includes an annular cover body and an extension portion. The annular cover body is arranged on the mounting port to form a cavity together with the pump casing. The extension portion extends from the annular cover body into the cavity, and the heating member is arranged on the extension portion.

[0022] In the technical solution of the present utility model, the heat-conducting element is configured as an annular cover body covering the installation port and an extension portion extending into the cavity, and the heating element is arranged on the extension portion, which does not occupy the top space of the pump casing, so that the overall height of the heating pump becomes smaller. Since the heating element is arranged on the extension portion, and the extension portion penetrates into the cavity formed inside the pump casing, the heating element is closer to the water flow and can directly heat the water flowing through, thereby improving the heating efficiency, reducing the loss in the heat transfer process, improving the thermal energy utilization rate, and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0024] Figure 1 A schematic structural diagram of an embodiment of a heating pump provided by the present utility model;

[0025] Figure 2 for Figure 1 Cross-sectional view of the heat pump;

[0026] Figure 3 for Figure 1 Cross-section of the heat pump;

[0027] Figure 4 for Figure 1 Schematic diagram of the structure of the heating component;

[0028] Figure 5 for Figure 4 Bottom view of the middle heating assembly;

[0029] Figure 6 for Figure 2 Schematic diagram of the structure of the heating element;

[0030] Figure 7 for Figure 1 Schematic top view of the heat pump.

[0031] Description of Figure Numbers:

[0032] 100. Heating pump; 1. Pump housing; a. Water outlet; c. Impeller chamber; d. Heat exchange chamber; e. Connecting groove; 2. Heating assembly; 21. Heat conductor; 211. Annular cover; 212. Extension; b. Opening; 22. Heating element; 221. Heating body; 2211. Heating section; 222. Power connection terminal; 3. Temperature control device; 31. Protector; 4. Conductive rod.

[0033] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] Traditional automatic dishwasher heater pumps typically mount the heating element on top of the pump housing. This design results in a high overall height, occupying a significant amount of vertical space and limiting its use in height-restricted applications. Furthermore, the top-mounted heating element is limited in length, resulting in low heating power, inefficiency, and high energy consumption.

[0038] The utility model provides a heating pump, aiming to provide a heating pump which can reduce the height of the heating pump and improve the heating efficiency.

[0039] See also Figure 1 and Figure 2In one embodiment of the present utility model, the heating pump 100 includes a pump housing 1 and a heating component 2, the pump housing 1 is provided with a mounting port at one end, and a water outlet a is provided on the side of the pump housing 1; the heating component 2 includes a heat-conducting member 21, and a heating element 22 provided on the heat-conducting member 21, the heat-conducting member 21 includes an annular cover body 211 and an extension portion 212, the annular cover body 211 is covered on the mounting port to form a cavity with the pump housing 1, the extension portion 212 extends from the annular cover body 211 into the cavity, and the heating element 22 is provided on the extension portion 212.

[0040] It should be noted that a mounting port is provided at one end of the pump casing 1, and the mounting hole is used to install the heating component 2. A water outlet a is provided on the side of the pump casing 1 for discharging heated water. The heat conducting member 21 is composed of an annular cover body 211 and an extension portion 212. The annular cover body 211 is covered on the mounting port of the pump casing 1 and together with the pump casing 1 form a closed cavity. The extension portion 212 extends from the annular cover body 211 into the cavity and enters the interior of the pump casing 1. The heating element 22 is arranged on the extension portion 212, directly in the cavity, close to the water flow path.

[0041] It is understandable that the heating element 22 is arranged on the extension part 212. The heating element 22 can be installed on the outside of the extension part 212, directly contacting the water in the cavity. At the same time, the heating element 22 transfers heat to the heat-conducting element 21, so that the heating element 22 and the heat-conducting element 21 are heated together to increase the heating surface. The heating element 22 can also be arranged inside the extension part 212. The heat-conducting element 21 is set to a high thermal conductivity material. When the heating element 22 is working, the heat-conducting element 21 can transfer heat to the heat-conducting element 21. The heating surface of the heat-conducting element 21 is larger, which makes the efficiency of heating the water in the cavity higher and achieves rapid heating. The heated water is discharged through the water outlet a and enters other parts of the dishwasher for cleaning operations.

[0042] In the technical solution of the present invention, the heat-conducting member 21 is configured as an annular cover body 211 covering the mounting port and an extension portion 212 extending into the cavity, and the heating member 22 is arranged on the extension portion 212, which does not occupy the top space of the pump casing 1, so that the overall height of the heating pump 100 becomes smaller. Since the heating member 22 is arranged on the extension portion 212, and the extension portion 212 penetrates into the cavity formed inside the pump casing 1, the heating member 22 is closer to the water flow and can directly heat the water flowing through, thereby improving the heating efficiency, reducing the loss in the heat transfer process, improving the thermal energy utilization rate, and reducing energy consumption.

[0043] Further, see Figures 1 to 5In this embodiment, the extension portion 212 is extended along the circumference of the pump housing 1 .

[0044] By extending the extension portion 212 along the circumference of the pump housing 1, the heat conducting member 21 can contact more water flow, thereby improving heating efficiency. The extension portions 212 are distributed along the circumference, so that the water flow in all directions in the cavity is evenly heated, avoiding the problems of local overheating or uneven heating.

[0045] The extension portion 212 is extended along the circumference of the pump housing 1 , which fully utilizes the circumferential space inside the pump housing 1 , thereby reducing the overall height of the heating pump 100 and adapting to installation environments with limited height.

[0046] Further, see Figures 3 to 5 In this embodiment, the extension portion 212 is provided with an opening b, which is disposed toward the water outlet a. During operation, the heat pump 100 transports water within the cavity toward the water outlet a through the rotation of the impeller. The extension portion 212 extends circumferentially along the pump housing 1 and surrounds the impeller. Providing the opening b on the extension portion 212 and orienting it toward the water outlet a ensures smoother water flow within the cavity. Water can flow directly toward the water outlet through the opening b, reducing resistance to the water flow and increasing its velocity.

[0047] Further, see Figures 2 to 4 In this embodiment, the extension portion 212 is spaced apart from the pump casing 1 to separate the cavity into spaced apart impeller cavities c and a heat exchange cavity d disposed outside the impeller cavity c, and the impeller cavity c is connected to the heat exchange cavity d.

[0048] It can be understood that the impeller chamber c is located in the central area between the extension portion 212 and the pump housing 1. The impeller chamber c is used to accommodate an impeller, and the impeller is responsible for driving the water flow.

[0049] The heat exchange chamber d is located outside the impeller chamber c. The heat exchange chamber d and the impeller chamber c are connected via a specific channel or opening b, ensuring that water can flow freely between the two chambers.

[0050] By dividing the cavity into the impeller cavity c and the heat exchange cavity d and connecting the two cavities, it is possible to ensure smoother flow of water within the pump housing 1. The heat exchange cavity d increases the contact area between the heat conducting member 21 and the water flow, allowing the water flow to stay in the heat exchange cavity d for a longer time, thereby further improving heating efficiency.

[0051] Specifically, see Figure 2 and Figure 4 The extension portion 212 is provided with a communication groove e that connects the impeller chamber c and the heat exchange chamber d. The communication groove e extends along the circumference of the pump housing 1 and facilitates the smooth flow of water between the impeller chamber c and the heat exchange chamber d. Water flows through the communication groove e from the impeller chamber c into the heat exchange chamber d and then returns from the heat exchange chamber d to the impeller chamber c, forming an efficient circulation path.

[0052] The connecting grooves e extend circumferentially, ensuring uniform water distribution within the heat exchange chamber d and sufficient contact with the heat conductor 21, thereby improving heating efficiency. The water remains in the heat exchange chamber d for a longer period of time, ensuring a more uniform temperature of the water discharged from the water outlet a. The connecting grooves e reduce resistance to the water flow within the chamber, increasing its velocity and reducing energy consumption.

[0053] Further, see Figure 4 In this embodiment, the extension portion 212 is integrally provided with the annular cover body 211 .

[0054] It can be understood that since the heating element 22 is arranged on the extension portion 212, the heat of the heating element 22 is not only transferred to the extension portion 212, but also transferred to the annular cover body 211. The extension portion 212 and the annular cover body 211 together serve as a heating component to heat the water in the cavity. That is to say, in addition to the extension portion 212 being able to heat the water in the cavity in the circumferential direction, the annular cover body 211 also heats the top of the water in the cavity.

[0055] Specifically, in this embodiment, the heat conducting member 21 is a metal heat conducting member 21; and / or the pump housing 1 is a plastic pump housing 1.

[0056] It should be noted that the heat conductor 21 is a metal heat conductor 21, and is made of a metal material such as copper or aluminum. Due to its excellent thermal conductivity, metal materials can quickly transfer the heat generated by the heating element 22 to the water flow, improving heating efficiency. Metal materials also have excellent high-temperature resistance and high structural strength, capable of withstanding high pressure and impact, ensuring the stability and safety of the heating assembly 2.

[0057] The pump housing 1 is a plastic pump housing 1, and the pump housing 1 is made of a plastic material such as polypropylene (PP) or polycarbonate (PC). The cost of such a plastic material is low, which can effectively reduce the manufacturing cost of the heat pump 100. The plastic material is relatively light, which helps to reduce the weight of the entire device and facilitates installation and transportation. The plastic material has good corrosion resistance and can resist erosion by water and detergents, thereby extending the service life of the pump housing 1.

[0058] By configuring the heat conductor 21 as a metal heat conductor 21, the high thermal conductivity of the metal heat conductor 21 ensures that heat can be quickly transferred to the water flow, thereby improving heating efficiency. The low-cost material selection of the plastic pump housing 1 reduces the manufacturing cost of the heating pump 100 and improves the market competitiveness of the product. The lightweight characteristics of the plastic pump housing 1 make the entire device lighter and easier to install and use. The high temperature resistance of the metal heat conductor 21 and the corrosion resistance of the plastic pump housing 1 ensure the stability and reliability of the heating pump 100 in various working environments.

[0059] In one embodiment, the heat conductor 21 is an aluminum heat conductor 21. The high thermal conductivity of the aluminum heat conductor 21 ensures that heat can be quickly transferred to the water flow, improving heating efficiency and shortening heating time. The low cost of aluminum can effectively reduce the manufacturing cost of the heat pump 100. The lightweight nature of aluminum makes the entire device lighter and easier to install and use. Aluminum is easy to process and form, and can be mass-produced using a variety of processes, improving production efficiency and reducing manufacturing difficulty.

[0060] Further, see Figure 1 、 Figure 6 and Figure 7 In this embodiment, the heating element 22 includes a heating body 221 and two power connection ends 222 correspondingly arranged on the heating body 221. The heating body 221 extends along the circumference of the extension portion 212, and the two power connection ends 222 are at least partially located outside the annular cover body 211.

[0061] It should be noted that the heating body 221 is the main part of the heating element 22 and is used to generate heat. The heating body 221 is usually made of a material with good thermal conductivity.

[0062] The two power terminals 222 are the parts where the heating body 221 is connected to an external power source, and are used to supply power to the heating body 221 to generate heat. The power terminals 222 may be plugs, contacts or other types of electrical interfaces.

[0063] The heating body 221 is arranged around the pump housing 1 to provide a uniform heating effect. By locating the power connection 222 outside the annular cover 211, it is convenient to connect to the power supply to effectively control the temperature of the fluid in the pump while ensuring electrical safety and easy maintenance.

[0064] Further, see Figure 2 and Figure 3 In this embodiment, the heating body 221 is embedded in the extension portion 212 .

[0065] The heating body 221 is directly embedded in the extension portion 212. The heating body 221 is in closer contact with the extension portion 212, reducing heat loss and ensuring that heat is quickly and evenly transferred to the interior of the cavity, which helps maintain the desired temperature. At the same time, the heating element is completely enclosed in the extension portion 212, reducing the possibility of electrical components being exposed to the outside, improving overall safety, and reducing the risk of accidental contact. In addition, if the heating body 221 is exposed to water for a long time, it is prone to corrosion and damage. The heating body 221 is embedded in the extension portion 212 to avoid direct corrosion from water and ensure the service life of the heating pump 100.

[0066] To simplify the electrical connections, see Figure 3 In one embodiment, the two power terminals 222 are adjacent to each other and arranged side by side. Thus, the two power terminals 222 of the heating body 221 are adjacent to each other and arranged side by side, which facilitates connection with an external power source. The side-by-side arrangement also helps save space, especially when the space outside the annular cover 211 is limited.

[0067] See also Figure 1 and Figure 7 In another embodiment, the two power terminals 222 are adjacent and arranged side by side, the heating body 221 includes a plurality of heating segments 2211, the plurality of heating segments 2211 are arranged in parallel and extend along the circumference of the extension portion 212, and the two adjacent heating segments 2211 are connected end to end, and the head end of one heating segment 2211 and the tail end of the other heating segment 2211 are correspondingly connected to the two power terminals 222.

[0068] The heating body 221 is composed of multiple heating segments 2211. These multiple heating segments 2211 are arranged in parallel, that is, they are arranged in parallel, and each heating segment 2211 extends along the circumference of the extension portion 212. The starting and ending ends of each heating segment 2211 are interconnected to form a continuous heating path, forming a series connection to ensure that current can flow smoothly from one heating segment 2211 to the next, thereby achieving effective heating. Within the heating body 221 composed of the multiple heating segments 2211, one end of two of the heating segments 2211 is connected to two power terminals 222, respectively. An external power source can supply power to the heating body 221 through the two power terminals 222, and current will flow through these heating segments 2211 to generate heat.

[0069] With such arrangement, the plurality of heating segments 2211 can better cover the circumferential surface of the extension portion 212 , and can be connected to an external power source via the two power connection ends 222 , thereby achieving uniform heating distribution.

[0070] Furthermore, the number of the heating sections 2211 can be set according to the actual heating power of the heating element 22 and the height of the extension portion 212 . When a larger heating power is required, the number of the heating sections 2211 can be increased.

[0071] See also Figure 1 and Figure 7 In this embodiment, the upper end surface of the annular cover 211 is formed with a mounting surface; the heating pump 100 also includes a temperature control device 3 installed on the mounting surface, and the temperature control device 3 is electrically connected to the two power terminals 222.

[0072] It should be noted that the temperature control device 3 can be a thermostat or a protector 31. The thermostat is a device for monitoring and regulating the temperature of the device. It automatically controls the operating state of the heat pump 100 according to a set temperature range to ensure that the device operates within a safe and efficient temperature range. The protector 31 is used to prevent the heat pump 100 from overheating or other abnormal conditions. It is used to monitor the temperature of the device and cut off the power supply or issue an alarm when the temperature exceeds a safe threshold, thereby protecting the device and its surrounding environment.

[0073] Specifically, the temperature control device 3 may be two protectors 31 , each of the protectors 31 is connected to the power connection end 222 via a conductive rod 4 , and the conductive rod 4 connects the protector 31 and the top of the power connection end 222 .

[0074] See also Figure 3 and Figure 5 In this embodiment, the top of the pump housing 1 has the mounting surface, and the two power terminals 222 are both arranged on the top of the pump housing 1.

[0075] It should be noted that the pump housing 1 is generally configured as a cylinder, and the top of the pump housing 1 is configured as a plane. Then, when the temperature control device 3 is configured at the top of the pump housing 1, the top surface of the pump housing 1 provides a flat mounting surface for the temperature control device 3.

[0076] The present invention also provides a dishwasher, which includes a water tank and a heating pump 100. The specific structure of the heating pump 100 refers to the above embodiment. Since the present dishwasher adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described one by one here.

[0077] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A heating pump, characterized in that: include: A pump housing, one end of which is provided with a mounting port, and a side portion of the pump housing is provided with a water outlet; as well as, The heating component includes a heat-conducting member and a heating member arranged on the heat-conducting member. The heat-conducting member includes an annular cover body and an extension portion. The annular cover body is arranged on the mounting port to form a cavity together with the pump casing. The extension portion extends from the annular cover body into the cavity, and the heating member is arranged on the extension portion.

2. The heat pump according to claim 1, wherein The extension portion is extended along the circumference of the pump housing.

3. The heat pump according to claim 2, wherein: The extension portion is provided with an opening, and the opening is arranged toward the water outlet.

4. The heat pump according to claim 2, wherein: The extension portion is spaced apart from the pump casing to separate the cavity into an impeller cavity spaced apart and a heat exchange cavity disposed outside the impeller cavity. The impeller cavity is communicated with the heat exchange cavity.

5. The heat pump according to claim 4, wherein: The extension portion is provided with a connecting groove connecting the impeller cavity and the heat exchange cavity.

6. The heat pump according to claim 5, wherein The communicating groove is extended along the circumferential direction of the pump housing.

7. The heat pump according to claim 1, wherein The extension portion is integrally provided with the annular cover body.

8. The heat pump according to claim 1, wherein The heat conducting member is a metal heat conducting member; and / or the pump housing is a plastic pump housing.

9. The heat pump according to claim 1, wherein The heating element includes a heating body and two power connection ends correspondingly arranged on the heating body. The heating body extends along the circumference of the extension portion, and the two power connection ends are at least partially located outside the annular cover.

10. The heat pump according to claim 9, wherein The heating body is embedded in the extending portion.

11. The heat pump according to claim 9, wherein The two power terminals are arranged adjacent to each other and side by side; and / or, The two power connection ends are adjacent and arranged side by side, the heating body includes multiple heating segments, the multiple heating segments are arranged in parallel and extend along the circumference of the extension portion, two adjacent heating segments are connected end to end, and the head end of one heating segment and the tail end of the other heating segment are correspondingly connected to the two power connection ends.

12. A dishwasher, characterized in that: Comprising the heat pump according to any one of claims 1 to 11.

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