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 piece, the pump shell is provided with a cavity, a water inlet and a water outlet, the water inlet and the water outlet are communicated with the cavity, the water inlet is arranged at the top of the pump shell, and the water outlet is arranged at the side part of the pump shell; the heating piece is arranged on the side portion of the pump shell and extends in the circumferential direction of the pump shell, the space of the top of the pump shell is not occupied, the heating piece can be closer to a liquid flowing path, it is ensured that liquid can obtain enough heat when passing through the heating piece, the area of the side wall of the pump shell is large, and therefore the heating piece can be used for heating the liquid. The heating pieces are arranged in the circumferential direction of the pump shell, the surface area in contact with liquid can be increased, and therefore the heat exchange efficiency is improved, and the problems that an existing heating pump is low in heating power and heat exchange efficiency and large in installation height space requirement are solved.

Description

Technical Field

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

[0002] The heating pump in an automatic dishwasher drives the water flow through the pump body and heats the liquid in the pump body at the same time.

[0003] In the existing heating pump, the heating tube is arranged at the top of the pump shell, so the overall height of the heating pump is relatively high, and the installation space requirement for the heating pump in the height direction is large. In the case of the increasing demand for miniaturized household appliances, such pumps cannot fully meet the situation of limited height space, which brings limitations and impacts to the internal layout. On the other hand, the space at the top is limited, and the length of the heating tube in the heating pump is also limited, resulting in a relatively low heating power, a low heat exchange efficiency, and a high energy consumption. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a heating pump and a dishwasher, aiming to solve the problems of low heating power, low heat exchange efficiency, and large installation height space requirement of the existing heating pump.

[0005] To achieve the above object, the heating pump proposed by the utility model includes:

[0006] A pump shell having a cavity, an inlet and an outlet communicated with the cavity, the inlet is arranged at the top of the pump shell, and the outlet is arranged at the side of the pump shell; and,

[0007] A heating element arranged at the side of the pump shell and extending along the circumferential direction of the pump shell.

[0008] In an embodiment, the heating element includes a heating main body and two power connection ends correspondingly arranged on the heating main body, the heating main body extends along the circumferential direction of the pump shell and is arranged at the side of the pump shell, and at least part of the two power connection ends is located outside the pump shell.

[0009] In an embodiment, the heating main body is embedded in the side of the pump shell.

[0010] In an embodiment, the two power connection ends are adjacent and arranged side by side; and / or,

[0011] The two power connection ends are adjacent and arranged side by side, the heating main body includes a plurality of heating sections, the plurality of heating sections are arranged in parallel and extend along the circumferential direction of the pump shell, the head and tail of each heating section are connected, and the head of one heating section and the tail of another heating section in two of the heating sections are correspondingly connected to the two power connection ends.

[0012] In one embodiment, an installation surface is formed on the outer surface of the pump housing at the positions where the two power connection terminals are provided;

[0013] The heating pump further includes a temperature control device installed on the installation surface, and the temperature control device is electrically connected to the two power connection terminals.

[0014] In one embodiment, the top of the pump housing has the installation surface, and the two power connection terminals are both provided at the top of the pump housing.

[0015] In one embodiment, the installation surface is provided on the side of the pump housing, and the two power connection terminals are both provided on the side of the pump housing.

[0016] In one embodiment, an installation portion is provided on the circumferential side of the pump housing, and the installation portion is provided on one side of the two power connection terminals in the circumferential direction of the pump housing;

[0017] One side of the installation portion facing away from the side of the pump housing forms the installation surface.

[0018] In one embodiment, the pump housing and the installation portion are integrally formed.

[0019] In one embodiment, the pump housing is provided as an aluminum pump housing.

[0020] The present utility model further provides a dishwasher, and the dishwasher includes a heating pump, and the heating pump includes:

[0021] A pump housing having a cavity, as well as a water inlet and a water outlet communicated with the cavity, the water inlet is provided at the top of the pump housing, and the water outlet is provided at the side of the pump housing; and,

[0022] A heating element provided on the side of the pump housing and extending along the circumferential direction of the pump housing.

[0023] In the technical solution of the present utility model, the heating element is provided on the side of the pump housing and extends along the circumferential direction of the pump housing, without occupying the space at the top of the pump housing, and can also make the heating element closer to the liquid flow path, ensuring that the liquid can obtain sufficient heat when passing through the heating element. The side wall area of the pump housing is relatively large, and the heating element is arranged along the circumferential direction of the pump housing, which can increase the surface area in contact with the liquid, thereby improving the heat exchange efficiency, so as to solve the problems of low heating power, low heat exchange efficiency, and large installation height space requirement of the existing heating pump. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0025] Figure 1 Structural schematic diagram of an embodiment of the heat pump provided by the present invention;

[0026] Figure 2 For Figure 1 Cross-sectional view of the heat pump in

[0027] Figure 3 For Figure 1 Top view schematic diagram of the heat pump in

[0028] Figure 4 For Figure 1 Structural schematic diagram of the pump housing in

[0029] Figure 5 For Figure 1 Structural schematic diagram of an embodiment of the heating element in

[0030] Figure 6 Structural schematic diagram of another embodiment of the heat pump provided by the present invention;

[0031] Figure 7 For Figure 6 Structural schematic diagram of an embodiment of the heating element in

[0032] Explanation of the reference numerals in the drawings:

[0033] 100, heat pump; 1, pump housing; 11, top; 12, side; a, cavity; b, water inlet; c, water outlet; 2, heating element; 21, heating main body; 211, heating section; 22, power connection end; 3, temperature control device; 31, protector; 4, conductive rod.

[0034] The realization of the purpose, functional features and advantages of the present invention will be further described with reference to the embodiments and the drawings. Detailed implementation manners

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0036] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0038] The heating pump in the automatic dishwasher drives the water flow through the pump body while heating the liquid in the pump body. The existing heating pump arranges the heating tube at the top of the pump shell, so the overall height of the heating pump is relatively high, and the installation space requirement for the heating pump in the height direction is large. In the case of the increasing demand for miniaturized household appliances, such pumps cannot fully meet the situation of limited height space, which brings limitations and impacts to the internal layout. On the other hand, the space at the top is limited, and the length of the heating tube in the heating pump is also restricted, resulting in a relatively low heating power, a low heat exchange efficiency, and a high energy consumption.

[0039] The present utility model proposes a heating pump to solve the problems of low heating power, low heat exchange efficiency, and large installation height space requirement of the existing heating pump. Figure 1 It is a schematic structural diagram of an embodiment of the heating pump provided by the present utility model; Figure 2 is Figure 1 the cross-sectional view of the heating pump in Figure 3 is Figure 1 the top view schematic diagram of the heating pump in

[0040] Figure 4 is Figure 1 the structural schematic diagram of the pump shell in Figure 5 is Figure 1 the structural schematic diagram of an embodiment of the heating element in

[0041] Figure 6Structural schematic diagram of another embodiment of the heat pump provided by the present utility model; Figure 7 is Figure 6 Structural schematic diagram of an embodiment of the heating element in

[0042] Please refer to Figure 1 and Figure 2 In an embodiment of the present utility model, the heat pump 100 includes a pump housing 1 and a heating element 2. The pump housing 1 has a cavity a, and a water inlet b and a water outlet c that are communicatively arranged with the cavity a. The water inlet b is arranged at the top 11 of the pump housing 1, and the water outlet c is arranged at the side 12 of the pump housing 1; the heating element 2 is arranged at the side 12 of the pump housing 1 and extends along the circumferential direction of the pump housing 1.

[0043] It can be understood that the pump housing 1 is the main component of the heat pump 100, which has an internal cavity a for accommodating liquid. The pump housing 1 is provided with the water inlet b and the water outlet c for the inlet and outlet of liquid.

[0044] The heating element 2 is used to heat the liquid in the pump housing 1. It is arranged at the side 12 of the pump housing 1 and extends along the circumferential direction of the pump housing 1. So that the heating element 2 can be evenly distributed around the pump housing 1, thereby improving the heating efficiency and heating uniformity.

[0045] It can be understood that the heating element 2 is arranged at the side 12 of the pump housing 1. It can be that the heating element 2 is arranged on one side of the inner wall of the pump housing 1. When the pump housing 1 is made of a heat-conducting material with a relatively high heat conductivity, the heating element 2 can also be arranged on one side of the outer peripheral wall of the pump housing 1. Of course, it can also be embedded in the pump housing 1.

[0046] It should be noted that the heating element 2 can adopt forms such as an electric heating wire, a resistance heating element, a heating tube, etc., and converts electric power into heat energy to heat the liquid in the pump housing 100.

[0047] It should also be noted that the pump housing 1 is generally in the form of a cylinder, and the area of the side wall surface of the cylinder is larger than the area of the top 11. Therefore, when the heating element 2 is arranged at the side 12, it has a larger laying area, and the heating element 2 can be provided with a larger heating surface, so that the power can be increased. And, compared with the prior art, arranging the heating element 2 at the top 11 may cause heat to concentrate in the top 11 area, and the liquid in the lower part cannot be effectively heated.

[0048] The working principle of the heating pump 100 is as follows: When the liquid enters the cavity a of the pump housing 1 from the water inlet b, the heating element 2 starts to heat the liquid. Since the heating element 2 is distributed along the circumferential direction of the pump housing 1, heat can be effectively transferred to the liquid in the entire cavity a, ensuring that the liquid is uniformly heated. The heated liquid then flows out of the pump housing 1 from the water outlet c, completing the process of heating and conveying.

[0049] In the technical solution of the present utility model, the heating element 2 is arranged on the side portion 12 of the pump housing 1 and extends along the circumferential direction of the pump housing 1, without occupying the space of the top portion 11 of the pump housing 1. It can also make the heating element 2 closer to the liquid flow path, ensuring that the liquid can obtain sufficient heat when passing through the heating element 2. The side wall area of the pump housing 1 is relatively large, and the heating element 2 is arranged along the circumferential direction of the pump housing 1, which can increase the surface area in contact with the liquid, thereby improving the heat exchange efficiency, so as to solve the problems of low heating power, low heat exchange efficiency, and large installation height space requirement of the existing heating pump.

[0050] In this embodiment, the heating element 2 includes a heating main body 21 and two power connection ends 22 correspondingly arranged on the heating main body 21. The heating main body 21 extends along the circumferential direction of the pump housing 1 and is arranged on the side portion 12 of the pump housing 1, and at least part of the two power connection ends 22 is located outside the pump housing 1.

[0051] It should be noted that the heating main body 21 is the main part of the heating element 2, and the heating main body 21 is used to generate heat. The heating main body 21 is usually made of a material with good thermal conductivity.

[0052] The two power connection ends 22 are the parts where the heating main body 21 is connected to an external power supply, and are used to supply power to the heating main body 21 to make it heat. The power connection ends 22 may be plugs, contacts or other types of electrical interfaces.

[0053] The heating main body 21 surrounds the pump housing 1 to provide a uniform heating effect. By locating the power connection ends 22 outside the pump housing 1, it is convenient to connect to the power supply, so as to effectively control the temperature of the fluid in the pump, while ensuring electrical safety and easy maintainability.

[0054] Furthermore, in this embodiment, the heating main body 21 is embedded in the side portion 12 of the pump housing 1.

[0055] It can be understood that if the heating element is external, it will increase the overall size of the heating pump 100. If the heating element is placed inside the pump housing 1, it will increase the turbulence or disturbance during the internal circulation of the fluid. The embedded design does not occupy the internal space of the pump housing 1, so the working volume of the pump can be maximized, which is helpful for a compact design. At the same time, it can also improve the smoothness of fluid flow.

[0056] The heating body 21 is directly embedded in the side part 12 of the pump housing 1. The heating body 21 is in closer contact with the pump housing 1, reducing heat loss and ensuring rapid and uniform heat transfer to the inside of the pump housing 1, which helps to maintain the required temperature. At the same time, the heating element is completely enclosed within the pump housing 1, reducing the possibility of electrical components being exposed, improving overall safety, and reducing the risk of accidental contact.

[0057] Furthermore, to simplify the complexity of electrical connections, please refer to Figure 3 , in one embodiment, the two power connection terminals 22 are adjacent and arranged side by side. In this way, the two power connection terminals 22 of the heating body 21 are adjacent to each other and arranged side by side, facilitating connection to an external power supply. The side-by-side arrangement also helps to save space, especially when the space outside the pump housing 1 is limited.

[0058] Please refer to Figure 5 and Figure 6 , in another embodiment, the two power connection terminals 22 are adjacent and arranged side by side. The heating body 21 includes a plurality of heating segments 211. The plurality of heating segments 211 are arranged in parallel and extend along the circumferential direction of the pump housing 1. The head and tail of each heating segment 211 are connected, and the head of one heating segment 211 and the tail of another heating segment 211 among the two heating segments 211 are correspondingly connected to the two power connection terminals 22.

[0059] The heating body 21 is composed of a plurality of heating segments 211. The plurality of heating segments 211 are arranged in parallel, that is, they are arranged parallel to each other. Each heating segment 211 extends along the circumferential direction of the pump housing 1. The starting end and the terminating end of each heating segment 211 are connected to each other to form a continuous heating path, forming a series connection method to ensure that current can flow smoothly from one heating segment 211 to the next heating segment 211, thereby achieving effective heating. In the heating body 21 composed of the plurality of heating segments 211, one end of two of the heating segments 211 will be connected to the two power connection terminals 22 respectively. The external power supply can supply power to the heating body 21 through the two power connection terminals 22, and current will generate heat through these heating segments 211.

[0060] With such an arrangement, the plurality of heating segments 211 can better cover the circumferential surface of the pump housing 1. By connecting to the external power supply through the two power connection terminals 22, a uniform heating distribution can be achieved.

[0061] Moreover, the number of the heating sections 211 can be set according to the actual heating power of the heating element 2 and the height of the pump housing 1. When a relatively large heating power is required, the number of the heating sections 211 can be increased.

[0062] Please refer to Figure 3 , in this embodiment, an installation surface is formed on the outer surface of the pump housing 1 at the positions where the two power connection terminals 22 are arranged; the heating pump 100 further includes a temperature control device 3 installed on the installation surface, and the temperature control device 3 is electrically connected to the two power connection terminals 22.

[0063] In this way, on the outer surface of the pump housing 1, the positions corresponding to the two power connection terminals 22 are designed to be substantially flat surfaces, and this flat surface is called the installation surface. The setting of the installation surface facilitates the subsequent installation of the temperature control device 3.

[0064] 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 adjusting the temperature of the equipment, and automatically controls the working state of the heating pump 100 according to the set temperature range to ensure that the equipment operates within a safe and efficient temperature range. The protector 31 is used to prevent the heating pump 100 from operating under overheating or other abnormal conditions, monitors the temperature of the equipment, and cuts off the power supply or issues an alarm when the temperature exceeds the safety threshold, thereby protecting the equipment and its surrounding environment.

[0065] Specifically, the temperature control device 3 can be two protectors 31, and each protector 31 is connected to the power connection terminal 22 through a conductive rod 4, and the conductive rod 4 connects the top 11 of the protector 31 and the power connection terminal 22.

[0066] Please refer to Figure 3 and Figure 5 , in this embodiment, the top 11 of the pump housing 1 has the installation surface, and the two power connection terminals 22 are both arranged on the top 11 of the pump housing 1.

[0067] It should be noted that the pump housing 1 is generally arranged as a cylinder, and the top 11 of the pump housing 1 is arranged as a flat surface. Then, when the temperature control device 3 is arranged on the top 11 of the pump housing 1, the top surface of the pump housing 1 provides a flat installation surface for the temperature control device 3.

[0068] It can be understood that since the heating body 21 includes the plurality of heating segments 211 connected end to end, the heating body 21 needs to be bent multiple times. When the two power connection ends 22 are arranged on the top 11 of the pump housing 1, the heating body 21 further includes connection heating segments 211 connected to the two power connection ends 22. The two connection heating segments 211 extend in the up and down directions and need to be further bent, and the bending process is slightly complicated.

[0069] Please refer to Figure 6 and Figure 7 , in another embodiment, the mounting surface is arranged on the side portion 12 of the pump housing 1, and the two power connection ends 22 are both arranged on the side portion 12 of the pump housing 1.

[0070] With such an arrangement, there is no need to provide connection heating segments 211 extending up and down. It is only necessary to extend the head end and the tail end of the heating body 21 when it is bent outward to the side portion 12 of the pump housing 1, reducing the bending process.

[0071] However, arranging the two power connection ends 22 on the side portion 12 of the pump housing 1 brings certain difficulties to the installation of the temperature control device 3. In order to facilitate the electrical connection between the temperature control device 3 and the two power connection ends 22, in this embodiment, a mounting portion (not shown in the figure) is provided on the circumferential side portion 12 of the pump housing 1. The mounting portion is arranged on one side of the two power connection ends 22 in the circumferential direction of the pump housing 1; one side of the mounting portion facing away from the side portion 12 of the pump housing 1 forms the mounting surface.

[0072] It should be noted that since the two power connection ends 22 are arranged on the circumferential side of the pump housing 1, and the circumferential side of the pump housing 1 is set as an arc surface, it is not conducive to the installation of the temperature control device 3 on the arc surface. Therefore, it is necessary to use the mounting portion to provide a flat mounting surface.

[0073] It can be understood that the mounting portion is an area or structure provided on the circumferential side portion 12 of the pump housing 1 for mounting the temperature control device 3.

[0074] "One side facing away from the side portion 12 of the pump housing 1" refers to the side of the mounting portion facing outward, that is, the side that does not directly contact the inside of the pump housing 1. Since the two power connection ends 22 are located outside the pump housing 1, the two power connection ends 22 and the top 11 of the temperature control device 3 can be electrically connected through the conductive rod 4.

[0075] Furthermore, in order to reduce the assembly process, in this embodiment, the pump housing 1 and the mounting portion are integrally formed. Integral forming generally refers to using a mold to fabricate the pump housing 1 and the mounting portion together through processes such as casting, injection molding, stamping, etc., rather than manufacturing them separately and then assembling them together. When forming the pump housing 1, the mounting portion is simultaneously formed. In this way, the production process can be simplified.

[0076] Specifically, in this embodiment, the pump housing 1 is provided as an aluminum pump housing 1.

[0077] It can be understood that aluminum has good heat conduction performance. Therefore, the heat of the heating element 2 can be quickly transferred to the pump housing 1, and then to the fluid inside the pump housing 1, making the temperature inside the pump housing 1 more uniform, thereby improving the heating effect. Due to the good heat conduction of aluminum, it can ensure that the heat is evenly distributed throughout the pump housing 1, avoiding local overheating, which is beneficial to maintaining the temperature consistency of the fluid inside the pump housing 1.

[0078] Through casting, a complex structure of the pump housing 1 can be formed at one time, reducing the need for subsequent processing and lowering the production cost. Moreover, compared with other materials, the density of aluminum alloy is smaller. Therefore, the cast pump housing 1 is relatively lighter, and the lighter weight helps to reduce the weight of the overall device, facilitating handling and installation.

[0079] The present utility model also proposes a dishwasher, which includes a sink and a heating pump 100. The specific structure of the heating pump 100 refers to the above embodiment. Since this dishwasher adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0080] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A heating pump, characterized in that: include: A pump housing, the pump housing having a cavity, and a water inlet and a water outlet connected to the cavity, the water inlet being arranged at the top of the pump housing, and the water outlet being arranged at the side of the pump housing; and, The heating element is arranged on the side of the pump housing and extends along the circumference of the pump housing.

2. The heat pump according to claim 1, characterized in that The heating element comprises a heating body and two power connection ends correspondingly arranged on the heating body. The heating body extends along the circumference of the pump housing and is arranged on the side of the pump housing. The two power connection ends are at least partially located outside the pump housing.

3. The heating pump according to claim 2, characterized in that The heating body is embedded in the side portion of the pump housing.

4. The heat pump according to claim 2, characterized in that 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 a plurality of heating segments, the plurality of heating segments are arranged in parallel and extend along the circumference of the pump casing, each heating segment is connected end to end, and the head end of one of the two heating segments and the tail end of the other heating segment are correspondingly connected to the two power connection ends.

5. The heat pump according to claim 3, characterized in that: The outer surface of the pump housing is formed with a mounting surface at the position where the two power terminals are arranged; The heating pump further comprises a temperature control device mounted on the mounting surface, wherein the temperature control device is electrically connected to the two electrical terminals.

6. The heat pump according to claim 5, characterized in that The top of the pump housing is provided with the mounting surface, and the two power connection terminals are both arranged on the top of the pump housing.

7. The heat pump according to claim 5, characterized in that The mounting surface is arranged on the side of the pump housing, and the two power connection terminals are arranged on the side of the pump housing.

8. The heating pump according to claim 7, characterized in that The circumferential side of the pump housing is provided with a mounting portion, and the mounting portion is arranged on one side of the two power connection ends on the circumferential direction of the pump housing; The side of the mounting portion facing away from the side portion of the pump housing forms the mounting surface.

9. The heating pump according to claim 8, characterized in that The pump housing and the mounting portion are integrally formed.

10. The heating pump according to any one of claims 1 to 9, characterized in that The pump housing is configured as an aluminum pump housing.

11. A dishwasher, characterized in that: Comprising a heating pump as claimed in any one of claims 1 to 10.

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