Heating pump and dish washing machine

Abstract

The invention 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 formed in the top of the pump shell, and the water outlet is formed in the side portion 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] This invention relates to the field of kitchen heating appliances, and in particular to a heating pump and a dishwasher. Background Technology

[0002] The heating pump inside the automatic dishwasher heats the liquid inside the pump body while driving the water flow.

[0003] Existing heat pumps have the heating element located at the top of the pump casing, resulting in a relatively high overall height and requiring significant vertical installation space. With the increasing demand for smaller household appliances, this type of pump cannot adequately meet the limited vertical space constraints, restricting and impacting internal layout. Furthermore, the limited top space also limits the length of the heating element, leading to a relative reduction in heating power, lower heat exchange efficiency, and higher energy consumption. Summary of the Invention

[0004] The main objective of this invention is to propose a heating pump and a dishwasher that aims to solve the problems of low heating power, low heat exchange efficiency, and large space requirements for installation height of existing heating pumps.

[0005] To achieve the above objectives, the heating pump proposed in this invention includes:

[0006] A pump casing having a cavity, and an inlet and an outlet communicating with the cavity, the inlet being located at the top of the pump casing, and the outlet being located at the side of the pump casing; and,

[0007] A heating element is disposed on the side of the pump housing and extends circumferentially along the pump housing.

[0008] In one embodiment, the heating element includes a heating body and two electrical terminals correspondingly disposed on the heating body. The heating body extends circumferentially along the pump housing and is disposed on the side of the pump housing. The two electrical terminals are at least partially located outside the pump housing.

[0009] In one embodiment, the heating element is embedded in the side of the pump housing.

[0010] In one embodiment, the two electrical terminals are adjacent and arranged side by side; and / or,

[0011] The two electrical terminals are adjacent and arranged side by side. The heating body includes multiple heating sections, which are arranged in parallel and extend along the circumference of the pump casing. Each heating section is connected end to end, and the beginning of one heating section and the end of the other heating section are connected to the two electrical terminals respectively.

[0012] In one embodiment, the outer surface of the pump housing has a mounting surface formed at the location where the two electrical terminals are disposed;

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

[0014] In one embodiment, the top of the pump housing has the mounting surface, and both electrical terminals are located on the top of the pump housing.

[0015] In one embodiment, the mounting surface is disposed on the side of the pump housing, and both electrical terminals are disposed on the side of the pump housing.

[0016] In one embodiment, a mounting portion is provided on the peripheral side of the pump housing, and the mounting portion is located on one side of the pump housing in the circumferential direction of the two electrical terminals.

[0017] The mounting surface is formed on the side of the mounting portion that is away from the pump casing.

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

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

[0020] The present invention also provides a dishwasher, the dishwasher including a heat pump, the heat pump comprising:

[0021] A pump casing having a cavity, and an inlet and an outlet communicating with the cavity, the inlet being located at the top of the pump casing, and the outlet being located at the side of the pump casing; and,

[0022] A heating element is disposed on the side of the pump housing and extends circumferentially along the pump housing.

[0023] In the technical solution of the present invention, the heating element is disposed on the side of the pump casing and extends along the circumference of the pump casing without encroaching on the space at the top of the pump casing. This also allows the heating element to be 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 casing is large, and the heating element is disposed along the circumference of the pump casing, which can increase the surface area in contact with the liquid, thereby improving the heat exchange efficiency and solving the problems of low heating power, low heat exchange efficiency, and large installation height space requirements of existing heating pumps. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 A schematic diagram of a structure of an embodiment of the heating pump provided by the present invention;

[0026] Figure 2 for Figure 1 Cross-sectional view of the heating pump;

[0027] Figure 3 for Figure 1 A top view of the heating pump;

[0028] Figure 4 for Figure 1 Schematic diagram of the pump casing structure;

[0029] Figure 5 for Figure 1 A schematic diagram of the structure of an embodiment of the intermediate heating element;

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

[0031] Figure 7 for Figure 6 A schematic diagram of the structure of one embodiment of the heating element.

[0032] Explanation of icon numbers:

[0033] 100. Heating pump; 1. Pump casing; 11. Top; 12. Side; a. Cavity; b. Inlet; c. Outlet; 2. Heating element; 21. Heating body; 211. Heating section; 22. Electrical connection terminal; 3. Temperature control device; 31. Protector; 4. Conductive rod.

[0034] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] 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 positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0038] The heating pump in an automatic dishwasher heats the liquid inside the pump body while simultaneously driving water flow. Existing heating pumps have the heating element located at the top of the pump casing, resulting in a relatively high overall height and requiring significant vertical installation space. With the increasing demand for smaller household appliances, this type of pump cannot adequately meet the limited vertical space requirements, restricting and impacting internal layout. Furthermore, the limited top space also restricts the length of the heating element, leading to a relatively lower heating power, lower heat exchange efficiency, and higher energy consumption.

[0039] This invention proposes a heating pump to solve the problems of low heating power, low heat exchange efficiency, and large installation height space requirements of existing heating pumps. Figure 1 A schematic diagram of a structure of an embodiment of the heating pump provided by the present invention; Figure 2 for Figure 1 Cross-sectional view of the heating pump; Figure 3 for Figure 1 A top view of the heating pump; Figure 4 for Figure 1 Schematic diagram of the pump casing structure; Figure 5 for Figure 1 A schematic diagram of the structure of an embodiment of the intermediate heating element; Figure 6 A schematic diagram of another embodiment of the heating pump provided by the present invention; Figure 7 for Figure 6 A schematic diagram of the structure of one embodiment of the heating element.

[0040] Please see Figure 1 and Figure 2 In one embodiment of the present invention, the heating pump 100 includes a pump housing 1 and a heating element 2. The pump housing 1 has a cavity a, an inlet b and an outlet c communicating with the cavity a. The inlet b is located at the top 11 of the pump housing 1, and the outlet c is located at the side 12 of the pump housing 1. The heating element 2 is located at the side 12 of the pump housing 1 and extends circumferentially along the pump housing 1.

[0041] It is understood that the pump housing 1 is a major component of the heating pump 100, and it has an internal cavity a for containing liquid. The pump housing 1 is provided with the inlet b and the outlet c for the entry and exit of liquid.

[0042] The heating element 2 is used to heat the liquid inside the pump housing 1. It is disposed on the side 12 of the pump housing 1 and extends circumferentially along the pump housing 1. This allows the heating element 2 to be evenly distributed around the pump housing 1, thereby improving heating efficiency and heating uniformity.

[0043] It is understood that the heating element 2 is disposed on the side 12 of the pump housing 1. The heating element 2 may be disposed on the inner wall of the pump housing 1. When the pump housing 1 is made of a heat-conducting material with high thermal conductivity, the heating element 2 may also be disposed on the outer peripheral wall of the pump housing 1. Of course, it may also be embedded in the pump housing 1.

[0044] It should be noted that the heating element 2 can be in the form of an electric heating wire, a resistance heating element, a heating tube, etc., and heats the liquid inside the pump 100 by converting electricity into heat energy.

[0045] It should also be noted that the pump housing 1 is generally designed as a cylinder, and the area of ​​the side wall of the cylinder is larger than the area of ​​the top 11. Therefore, when the heating element 2 is set on the side 12, it has a larger laying area. The heating element 2 can be set with a larger heating surface, so that the power can be increased. In addition, compared with the prior art, setting the heating element 2 on the top 11 may cause the heat to concentrate in the top 11 area, while the liquid below cannot be effectively heated.

[0046] The heating pump 100 operates as follows: when liquid enters the cavity a of the pump casing 1 from the inlet b, the heating element 2 begins to heat the liquid. Since the heating element 2 is distributed circumferentially along the pump casing 1, heat can be effectively transferred to the liquid throughout the cavity a, ensuring uniform heating. The heated liquid then flows out of the pump casing 1 from the outlet c, completing the heating and delivery process.

[0047] In the technical solution of the present invention, the heating element 2 is disposed on the side 12 of the pump housing 1 and extends along the circumference of the pump housing 1 without encroaching on the space of the top 11 of the pump housing 1. This also allows the heating element 2 to be 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 large, and the heating element 2 is disposed along the circumference of the pump housing 1, which can increase the surface area in contact with the liquid, thereby improving the heat exchange efficiency and solving the problems of low heating power, low heat exchange efficiency, and large installation height space requirements of existing heating pumps.

[0048] In this embodiment, the heating element 2 includes a heating body 21 and two electrical terminals 22 correspondingly disposed on the heating body 21. The heating body 21 extends circumferentially along the pump housing 1 and is disposed on the side 12 of the pump housing 1. The two electrical terminals 22 are at least partially located outside the pump housing 1.

[0049] It should be noted that the heating body 21 is the main part of the heating element 2, and the heating body 21 is used to generate heat. The heating body 21 is usually made of a material with good thermal conductivity.

[0050] The two electrical terminals 22 are the parts that connect the heating body 21 to an external power source, and are used to supply power to the heating body 21 to generate heat. The electrical terminals 22 may be plugs, contacts or other types of electrical interfaces.

[0051] The heating element 21 is arranged around the pump casing 1 to provide a uniform heating effect. By placing the power terminal 22 outside the pump casing 1, it is easy to connect to a power source to effectively control the temperature of the fluid inside the pump, while ensuring electrical safety and ease of maintenance.

[0052] Furthermore, in this embodiment, the heating body 21 is embedded in the side portion 12 of the pump housing 1.

[0053] Understandably, if the heating element is externally mounted, 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 turbulence or disturbance during fluid circulation. The embedded design does not occupy the internal space of the pump housing 1, thus maximizing the pump's working volume and contributing to a compact design. It can also improve the smoothness of fluid flow.

[0054] The heating element 21 is directly embedded in the side 12 of the pump housing 1. The heating element 21 is in closer contact with the pump housing 1, reducing heat loss and ensuring that heat is quickly and evenly transferred to the inside of the pump housing 1, which helps maintain the required temperature. At the same time, the heating element is completely enclosed in the pump housing 1, reducing the possibility of electrical components being exposed, improving overall safety, and reducing the risk of accidental contact.

[0055] Furthermore, to simplify the complexity of electrical connections, please refer to [link / reference]. Figure 3 In one embodiment, the two electrical terminals 22 are arranged adjacent to each other and side by side. This arrangement of the two electrical terminals 22 of the heating body 21 adjacent to each other and side by side facilitates connection to an external power source, and also helps save space, especially when space outside the pump housing 1 is limited.

[0056] Please see Figure 5 and Figure 6 In another embodiment, the two electrical terminals 22 are adjacent and arranged side by side, and the heating body 21 includes a plurality of heating sections 211. The plurality of heating sections 211 are arranged in parallel and extend along the circumference of the pump casing 1. Each heating section 211 is connected end to end, and the beginning end of one heating section 211 and the end end of the other heating section 211 are connected to the two electrical terminals 22 respectively.

[0057] The heating body 21 is composed of multiple heating segments 211 arranged in parallel, each extending circumferentially along the pump casing 1. The starting and ending ends of each heating segment 211 are connected to form a continuous heating path, creating a series connection to ensure smooth current flow from one heating segment 211 to the next, thus achieving effective heating. In the heating body 21 composed of multiple heating segments 211, two segments 211 have one end connected to two electrical terminals 22. An external power source can supply power to the heating body 21 through these terminals 22, and the current will generate heat through these heating segments 211.

[0058] With this configuration, the multiple heating sections 211 can better cover the circumferential surface of the pump casing 1, and can be connected to an external power source through the two electrical terminals 22, enabling uniform heating distribution.

[0059] Furthermore, the number of heating sections 211 can be set according to the actual heating power of the heating element 2 and the height of the pump casing 1. When a larger heating power is required, the number of heating sections 211 can be increased.

[0060] Please see Figure 3 In this embodiment, the outer surface of the pump housing 1 has a mounting surface at the location where the two electrical terminals 22 are set; the heating pump 100 also includes a temperature control device 3 mounted on the mounting surface, and the temperature control device 3 is electrically connected to the two electrical terminals 22.

[0061] Thus, on the outer surface of the pump housing 1, the positions corresponding to the two electrical terminals 22 are designed as approximately a plane, which is called the mounting surface. The mounting surface is designed to facilitate the subsequent installation of the temperature control device 3.

[0062] It should be noted that the temperature control device 3 can be a thermostat or a protector 31. The thermostat is used to monitor and regulate the temperature of the equipment, automatically controlling the operating 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. It monitors the temperature of the equipment and cuts off the power supply or issues an alarm when the temperature exceeds a safe threshold, thereby protecting the equipment and its surrounding environment.

[0063] Specifically, the temperature control device 3 may be two protectors 31, each of which is connected to the power terminal 22 via a conductive rod 4. The conductive rod 4 connects the top 11 of the protector 31 and the power terminal 22.

[0064] Please see Figure 3 and Figure 5 In this embodiment, the top 11 of the pump housing 1 has the mounting surface, and both electrical terminals 22 are disposed on the top 11 of the pump housing 1.

[0065] It should be noted that the pump housing 1 is generally set as a cylinder, and the top 11 of the pump housing 1 is set as a plane. Therefore, when the temperature control device 3 is set on the top 11 of the pump housing 1, the top surface of the pump housing 1 provides the temperature control device 3 with a plane-shaped mounting surface.

[0066] It is understandable that, since the heating body 21 includes multiple heating sections 211 connected end to end, the heating body 21 needs to be bent multiple times. When the two electrical terminals 22 are located on the top 11 of the pump housing 1, the heating body 21 also includes connecting heating sections 211 connected to the two electrical terminals 22. The two connecting heating sections 211 extend in the vertical direction and need to be bent further, making the bending process slightly more complicated.

[0067] Please see Figure 6 and Figure 7 In another embodiment, the mounting surface is disposed on the side 12 of the pump housing 1, and both electrical terminals 22 are disposed on the side 12 of the pump housing 1.

[0068] With this configuration, there is no need to set up a vertically extending connecting heating section 211. It is only necessary to extend the first and last ends of the heating body 21 outward toward the side 12 of the pump housing 1 when bending the heating body 21, thus reducing the bending process.

[0069] However, the two electrical terminals 22 are located on the side 12 of the pump housing 1, which poses a certain difficulty in installing the temperature control device 3. In order to facilitate the electrical connection between the temperature control device 3 and the two electrical terminals 22, in this embodiment, a mounting part (not shown) is provided on the circumferential side 12 of the pump housing 1. The mounting part is located on one side of the pump housing 1 in the circumferential direction where the two electrical terminals 22 are located; the mounting surface is formed on the side of the mounting part away from the side 12 of the pump housing 1.

[0070] It should be noted that, since the two electrical terminals 22 are located on the periphery of the pump housing 1, and the periphery of the pump housing 1 is an arc surface, the temperature control device 3 is not easy to install on the arc surface. Therefore, the mounting part is needed to provide a flat mounting surface.

[0071] It is understood that the mounting part is an area or structure provided on the peripheral side 12 of the pump housing 1 for the installation of the temperature control device 3.

[0072] "The side away from the pump housing 1 side 12" refers to the side of the mounting part facing outward, that is, the side that does not directly contact the inside of the pump housing 1. Since the two electrical terminals 22 are located outside the pump housing 1, the two electrical terminals 22 can be electrically connected to the top 11 of the temperature control device 3 through the conductive rod 4.

[0073] Furthermore, to reduce assembly processes, in this embodiment, the pump housing 1 and the mounting part are integrally formed. Integral forming typically refers to manufacturing the pump housing 1 and the mounting part together using molds through processes such as casting, injection molding, and stamping, rather than manufacturing them separately and then assembling them together. When forming the pump housing 1, the mounting part is formed simultaneously, thus simplifying the production process.

[0074] Specifically, in this embodiment, the pump housing 1 is configured as an aluminum pump housing 1.

[0075] Understandably, aluminum has excellent thermal conductivity. Therefore, the heat from 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 and thus improving the heating effect. Because of aluminum's good thermal conductivity, heat can be evenly distributed throughout the pump housing 1, avoiding localized overheating and helping to maintain the temperature consistency of the fluid inside the pump housing 1.

[0076] The complex pump casing 1 structure can be formed in one step through casting, reducing the need for subsequent processing and lowering production costs. Furthermore, compared to other materials, aluminum alloy has a lower density, resulting in a relatively lightweight cast pump casing 1. This lighter weight helps reduce the overall weight of the equipment, facilitating handling and installation.

[0077] The present invention also proposes a dishwasher, which includes a water tank and a heating pump 100. The specific structure of the heating pump 100 is as described in the above embodiments. Since the 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 in detail here.

[0078] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any 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 applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A heating pump, characterized in that, include: A pump casing having a cavity, and an inlet and an outlet communicating with the cavity, the inlet being located at the top of the pump casing, and the outlet being located at the side of the pump casing; and, A heating element is disposed on the side of the pump housing and extends circumferentially along the pump housing.

2. The heating pump as described in claim 1, characterized in that, The heating element includes a heating body and two electrical terminals correspondingly disposed on the heating body. The heating body extends circumferentially along the pump housing and is disposed on the side of the pump housing. The two electrical terminals are at least partially located outside the pump housing.

3. The heating pump as described in claim 2, characterized in that, The heating element is embedded in the side of the pump casing.

4. The heating pump as described in claim 2, characterized in that, The two electrical terminals are adjacent and side-by-side; and / or, The two electrical terminals are adjacent and arranged side by side. The heating body includes multiple heating sections, which are arranged in parallel and extend along the circumference of the pump casing. Each heating section is connected end to end, and the beginning of one heating section and the end of the other heating section are connected to the two electrical terminals respectively.

5. The heating pump as described in claim 3, characterized in that, The outer surface of the pump casing has a mounting surface at the location where the two electrical terminals are set; The heating pump also includes a temperature control device installed on the mounting surface, and the temperature control device is electrically connected to the two power terminals.

6. The heating pump as described in claim 5, characterized in that, The top of the pump casing has the mounting surface, and both electrical terminals are located on the top of the pump casing.

7. The heating pump as described in claim 5, characterized in that, The mounting surface is located on the side of the pump casing, and both electrical terminals are located on the side of the pump casing.

8. The heating pump as described in claim 7, characterized in that, The pump casing is provided with a mounting part on its circumferential side, and the mounting part is located on one side of the two electrical terminals in the circumferential direction of the pump casing. The mounting surface is formed on the side of the mounting portion that is away from the pump casing.

9. The heating pump as described in claim 8, characterized in that, The pump housing and the mounting part are integrally formed.

10. The heating pump according to any one of claims 1 to 9, characterized in that, The pump casing is made of aluminum.

11. A dishwasher, characterized in that, Including the heating pump as described in any one of claims 1 to 10.

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