Heat pump water heater

Abstract

The utility model relates to the technical field of water heaters, in particular to a heat pump water heater. The heat pump water heater comprises a detection part, a water tank, a heat pump system, an auxiliary heating assembly and a control assembly, and the detection part is arranged in the water tank and used for detecting the water amount in the water tank; a condenser of the heat pump system is used for heating water in the water tank; the auxiliary heating assembly is arranged in the water tank and used for heating water in the water tank. The control assembly is in communication connection with the detection part, the heat pump system and the auxiliary heating assembly. According to the heat pump water heater, the detection part, the heat pump system, the auxiliary heating assembly and the control assembly are arranged, the control assembly is in communication connection with the detection part, the heat pump system and the auxiliary heating assembly, and therefore the heat pump water heater can control the heat pump system and / or the auxiliary heating assembly to conduct heating according to the detection result of the detection part; the probability that when water in the water tank is insufficient, the heat pump system and / or the auxiliary heating assembly still continue to work to cause dry burning can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a heat pump water heater. Background Technique

[0002] What is provided in this part is only background information related to the present disclosure, and it is not necessarily prior art.

[0003] A water heater refers to a device that can raise the temperature of cold water to hot water within a certain period of time through various physical principles. According to different principles, it can be divided into electric water heaters, gas water heaters, solar water heaters, magnetic energy water heaters, air energy water heaters, heating water heaters, heat pump water heaters, etc.

[0004] The heat pump water heater includes a heat pump system and a water tank. In a low-temperature environment, the heating capacity of the heat pump system will decline. Therefore, an auxiliary heating component is usually set in the water tank to heat the water. When the water volume in the water tank is insufficient, dry burning is likely to occur, increasing the safety hazard of the heat pump water heater. Summary of the Utility Model

[0005] The purpose of the utility model is to at least solve the problem that when the water volume in the water tank of the heat pump water heater is insufficient, dry burning is likely to occur, resulting in an increase in the safety hazard of the heat pump water heater. This purpose is achieved through the following technical solutions:

[0006] The utility model provides a heat pump water heater, which includes:

[0007] A detection component;

[0008] A water tank, with the detection component provided therein, and the detection component is used to detect the water volume in the water tank;

[0009] A heat pump system, the heat pump system includes a condenser, and the condenser is arranged around the side wall of the water tank and is used to heat the water in the water tank;

[0010] An auxiliary heating component, which is arranged inside the water tank and is used to heat the water in the water tank; and

[0011] A control component, which is respectively communicatively connected to the detection component, the heat pump system, and the auxiliary heating component.

[0012] For the heat pump water heater according to the present utility model, by providing a detection component, and providing a heat pump system, an auxiliary heating component and a control component, wherein the detection component is used to detect the water volume in the water tank, and the control component is respectively communicatively connected to the detection component, the heat pump system and the auxiliary heating component, it is possible to enable the heat pump water heater to control the heat pump system and / or the auxiliary heating component to perform heating according to the detection result of the detection component, and the probability of dry burning when the heat pump system and / or the auxiliary heating component still continue to operate when the water volume in the water tank is insufficient can be reduced.

[0013] In addition, the heat pump water heater according to the present utility model may further have the following additional technical features:

[0014] In some embodiments of the present utility model, the detection component includes a water level detector, and the water level detector is arranged at the upper part of the side wall of the water tank along the vertical direction and is used to measure the water level in the water tank;

[0015] The control component controls the heat pump system and / or the auxiliary heating component to perform heating according to the detected water level being greater than a preset water level value.

[0016] In some embodiments of the present utility model, the water tank is further provided with a water outlet, and the water outlet is arranged above the water level detector along the vertical direction.

[0017] In some embodiments of the present utility model, the auxiliary heating component is arranged below the water level detector along the vertical direction.

[0018] In some embodiments of the present utility model, the water level detector is detachably connected to the side wall of the water tank.

[0019] In some embodiments of the present utility model, the water tank and the heat pump system are of a split structure, and the heat pump system is arranged outdoors.

[0020] In some embodiments of the present utility model, the heat pump water heater further includes a first communication line, and both ends of the first communication line are respectively connected to the detection component and the control component.

[0021] In some embodiments of the present utility model, the water tank is of a multi-layer structure, and the multi-layer structure includes an inner tank layer, a heat insulation layer and a shell layer which are arranged in sequence from the inside to the outside.

[0022] In some embodiments of the present utility model, the heat pump water heater further includes a temperature sensor, and the temperature sensor is arranged on the water tank and is electrically connected to the control component.

[0023] In some embodiments of the present utility model, the detection member includes a water flow detector and a timer. The water flow detector is disposed at the water inlet of the water tank for testing the water flow rate at the water inlet, and the timer is used for testing the water inlet duration at the water inlet. Description of the Drawings

[0024] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered to be a limitation of the present utility model. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0025] Figure 1 Schematically shows a schematic structural diagram of a heat pump water heater according to an embodiment of the present utility model;

[0026] Figure 2 is Figure 1 Another schematic structural diagram of the heat pump water heater shown in;

[0027] Figure 3 is Figure 1 Another schematic structural diagram of the heat pump water heater shown in;

[0028] Figure 4 is Figure 3 A schematic structural diagram of the water tank of the heat pump water heater shown in;

[0029] Figure 5 is Figure 3 Another schematic structural diagram of the water tank of the heat pump water heater shown in.

[0030] The reference numerals are as follows:

[0031] 100, heat pump water heater;

[0032] 10, water tank; 11, water outlet; 12, water inlet; 13, inner tank layer; 14, insulation layer; 15, housing layer;

[0033] 20, water level detector;

[0034] 30, heat pump system;

[0035] 40, auxiliary heating component;

[0036] 50, control component;

[0037] 60, temperature sensor;

[0038] 70, water flow detector;

[0039] 80, water pipe;

[0040] 101. The first communication line; 102. The second communication line;

[0041] X-X. The horizontal direction; Y-Y. The vertical direction. Detailed implementation manners

[0042] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0043] It should be understood that the terms used herein are for the purpose of describing specific exemplary embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless the order of performance is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0044] Although the terms first, second, third, etc. may be used in this document to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms used herein do not imply an order or sequence. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the exemplary embodiments.

[0045] For ease of description, spatial relative relationship terms may be used in the text to describe the relationship of one element or feature shown in the figure with respect to another element or feature. These relative relationship terms are, for example, "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "upper", etc. Such spatial relative relationship terms are intended to include different orientations of the device during use or operation in addition to the orientations depicted in the figure. For example, if the device in the figure is flipped, an element described as "below" or "beneath" other elements or features will then be oriented as "above" or "upper" other elements or features. Therefore, the example term "below" can include both upper and lower orientations.

[0046] As Figures 1 to 5 shown, according to an embodiment of the present invention, a heat pump water heater 100 is provided. Figure 1 A schematic structural diagram of the heat pump water heater 100 according to an embodiment of the present invention is schematically shown. Figure 2 For Figure 1 another schematic structural diagram of the heat pump water heater 100 shown in Figure 3 For Figure 1 another schematic structural diagram of the heat pump water heater 100 shown in. The heat pump water heater 100 includes a detection member, a water tank 10, a heat pump system 30, an auxiliary heating assembly 40, and a control assembly 50. A detection member is provided inside the water tank 10. Among them, the detection member is used to detect the water volume in the water tank 10; the heat pump system 30 includes a condenser (not shown). Among them, the condenser can be disposed on the side wall of the water tank 10 and is used to heat the water in the water tank 10; the auxiliary heating assembly 40 is disposed inside the water tank 10 and is used to heat the water in the water tank 10; the control assembly 50 is respectively communicatively connected to the detection member, the heat pump system 30, and the auxiliary heating assembly 40. Among them, the control assembly 50 is used to control the heat pump system 30 and / or the auxiliary heating assembly 40 to perform heating according to the detection result of the detection member. For example, if the detection result of the detection member is greater than a first preset value, the control assembly 50 controls the heat pump system 30 and / or the auxiliary heating assembly 40 to heat the water in the water tank 10. Among them, the first preset value here can be a parameter determined based on the position of the water level or based on the water volume in the water tank 10, such as the volume or weight of the water in the water tank 10, etc.

[0047] It should be noted that the condenser of the heat pump system 30 can be wound around the outer surface of the water tank 10, and the heat of the condenser is dissipated to heat the water tank 10, so as to heat the water in the water tank 10.

[0048] In addition, the heat pump water heater 100 is a common product. The heat pump water heater 100 includes components such as an axial flow fan, a water pump, a compressor, an evaporator, and a condenser. Among them, after the heat pump water heater 100 is powered on, the axial flow fan starts to operate. Outdoor air exchanges heat through the evaporator, and the air with reduced temperature is discharged by the axial flow fan. At the same time, the working medium inside the evaporator absorbs heat and vaporizes and is sucked into the compressor. The compressor compresses this low-pressure working medium gas into a high-temperature and high-pressure gas and sends it to the condenser. The water forced to circulate by the water pump also passes through the condenser, is heated by the working medium, and then sent to the user for use. The working medium is cooled into a liquid, and this liquid flows back into the evaporator again after throttling and temperature reduction through the expansion valve. Working in such a cycle repeatedly, the heat energy in the air is continuously pumped into the water, gradually increasing the water temperature in the water tank 10.

[0049] It should be emphasized that the control component 50 here can be a controller, which is integrated on the heat pump system 30 and placed outdoors. Of course, the control component 50 here can also be integrated outside the water tank 10. The model of the controller can be KZ-01F, or other models of controllers can also be used.

[0050] According to the heat pump water heater 100 of the present utility model, by arranging a detection component in the water tank 10, and arranging a heat pump system 30, an auxiliary heating component 40, and a control component 50, among which, the detection component is used to detect the water volume in the water tank 10, the control component 50 is communicatively connected to the detection component, and is used to control the heat pump system 30 and / or the auxiliary heating component 40 to perform heating according to the detection result of the detection component. Then, the heat pump water heater 100 can control the heat pump system 30 and / or the auxiliary heating component 40 to perform heating according to the detection result of the detection component, which can reduce the probability of dry burning when the heat pump system 30 and / or the auxiliary heating component 40 still continue to work when the water volume in the water tank 10 is insufficient, thereby reducing the safety hazard of the heat pump water heater 100.

[0051] In Figure 1 the heat pump water heater 100 does not set the auxiliary heating component 40, and only one heating method can also be used to realize the heating of the water tank 10. In Figure 2 and Figure 3 the heat pump water heater 100 sets the auxiliary heating component 40, and can supplement and heat the water in the water tank 10 through the auxiliary heating component 40.

[0052] Optionally, the control component 50 is usually located in the outdoor part of the heat pump system 30, and the water tank 10 is located indoors for the convenience of users to use hot water. Moreover, the distance between the water tank 10 and the heat pump system 30 can be adjusted to facilitate the placement of the heat pump water heater 100. Alternatively, the control component 50, the heat pump system 30, and the water tank 10 here can also be all arranged indoors. That is to say, the heat pump water heater 100 can be set as a split structure, with part located outdoors and the other part located indoors. The heat pump water heater 100 can also be set as an integral structure and placed entirely indoors. Among them, the heat pump system 30 and the water tank 10 are arranged at intervals along the horizontal direction X-X.

[0053] The following will describe the heat pump water heater 100 with a split structure in detail.

[0054] Optionally, the detection component includes a water level detector 20, which is arranged at the upper part of the side wall of the water tank 10. That is to say, the water level detector 20 is arranged at the upper part of the side wall of the water tank 10 along the vertical direction. The upper part refers to the position above the middle position of the side wall along the vertical direction. Among them, the first preset value is the preset water level value. The water tank 10 here can be a rectangular box, or can be set as a cylindrical box or a box with other shaped structures. The control component 50 controls the heat pump system 30 and / or the auxiliary heating component 40 to heat according to the detected water level being greater than the preset water level value.

[0055] It should be emphasized that the water level detector 20 is arranged at the upper part of the side wall of the water tank 10, which means that the water level detector 20 is located in the upper half of the side wall of the water tank 10. That is to say, the water level detector 20 is located in the upper half of the water tank 10 along the Y-Y direction. Compared with arranging the water level detector 20 in the lower half of the water tank 10 along the Y-Y direction, when there is enough water in the water tank 10, the heat pump system 30 and the auxiliary heating component 40 can be heated, reducing the probability of dry burning.

[0056] The water level detector 20 is used to measure the position of the water level in the water tank 10. When the water in the water tank 10 reaches the position where the water level detector 20 is located, the water level detector 20 will be triggered, and the control component 50 controls the heat pump system 30 and / or the auxiliary heating component 40 to heat according to the detection result of the detector. When the water level in the water tank 10 is lower than the position where the water level detector 20 is located, the control component 50 controls the heat pump system 30 and the auxiliary heating component 40 to disconnect, reducing the probability of dry burning of the water tank 10.

[0057] Optionally, the water tank 10 is further provided with a water outlet 11, which is arranged above the water level detector 20 in the vertical direction, that is to say, the water outlet 11 is arranged above the water level detector 20 along the Y-Y direction. As mentioned before, the water level detector 20 is located in the upper part of the side wall of the water tank 10. Therefore, the water outlet 11 here can also be arranged in the upper part of the side wall of the water tank 10, and the bottom of the water outlet 11 is higher than the position of the water level detector 20, reducing the situation of excessive water volume in the water tank 10.

[0058] Optionally, referring to Figure 2 and Figure 3 shown, the auxiliary heating component 40 is arranged below the water level detector 20 in the vertical direction. Among them, in Figure 2 the auxiliary heating component 40 is arranged below the water level detector 20 in the vertical direction, and the auxiliary heating component 40 is arranged in the lower part of the side wall of the water tank 10. In Figure 3 the auxiliary heating component 40 is arranged below the water level detector 20 in the vertical direction, and the auxiliary heating component 40 is arranged in the upper part of the side wall of the water tank 10. No matter where the auxiliary heating component 40 is placed in the water tank 10, when heating is required, the water in the water tank 10 can be heated.

[0059] It should be noted that the auxiliary heating component 40 can be an electric heater, which can work when powered on and stop working when powered off, facilitating the control component 50 to control the turning on or off of the auxiliary heating component 40, thereby reducing the probability of dry burning of the auxiliary heating component 40.

[0060] It can be understood that the heating part of the auxiliary heating component 40 can be inserted into the interior of the water tank 10, so as to directly heat the water in the water tank 10.

[0061] Optionally, the water level detector 20 is detachably connected to the side wall of the water tank 10, that is to say, the water level detector 20 can be hermetically connected to the side wall of the water tank 10, reducing the probability of water leakage from the water tank 10. Usually, for the convenience of installing or disassembling the water level detector 20, the water level detector 20 is connected to the side wall of the water tank 10.

[0062] Optionally, the water tank 10 and the heat pump system 30 are of a split structure, and the heat pump system 30 is arranged outdoors. Among them, the heat pump system 30 also includes components such as an evaporator and a compressor, and the specific structure of the heat pump system 30 will not be elaborated here.

[0063] To achieve the connection between the water tank 10 and the heat pump system 30, the heat pump water heater 100 further includes a water pipe 80. The surface of the water pipe 80 is provided with a heat insulation structure to reduce the situation where the refrigerant pipe is frozen when the heat pump water heater 100 is placed in a cold area. The inside of the water pipe 80 can be water or other refrigerants.

[0064] Optionally, the heat pump water heater 100 further includes a first communication line 101. The two ends of the first communication line 101 are respectively connected to the detection component and the control component 50. That is to say, the wired communication between the detection component and the control component 50 is realized through the first communication line 101. Of course, wireless communication can also be adopted between the detection component and the control component 50 here, and no further description will be given here.

[0065] Optionally, the heat pump water heater 100 further includes a temperature sensor 60. The temperature sensor 60 is arranged on the water tank 10 and is electrically connected to the control component 50. The position of the temperature sensor 60 here is lower than the position of the water level detector 20, and it can detect the temperature of the water in the water tank 10, so that the water temperature in the water tank 10 can be controlled through the control component 50.

[0066] Optionally, the heat pump water heater 100 further includes a second communication line 102. The two ends of the second communication line 102 are respectively connected to the control component 50 and the temperature sensor 60, so as to realize the electrical connection between the control component 50 and the temperature sensor 60, which is convenient for the control component 50 to control the water temperature in the water tank 10.

[0067] Optionally, as Figures 1 to 4 shown, Figure 4 is Figure 3 a schematic structural diagram of the water tank 10 of the heat pump water heater 100 shown in. The water tank 10 is a multi-layer structure. The multi-layer structure includes an inner liner layer 13, a heat insulation layer 14, and a shell layer 15 arranged in sequence from the inside to the outside. Among them, the inner liner layer 13 encloses a cavity for placing water, and the heat insulation layer 14 is located between the inner single layer and the shell layer 15, reducing the heat exchange between the water tank 10 and the environment and reducing the energy loss.

[0068] Alternatively, as Figure 5 shown, Figure 5 is Figure 3 another schematic structural diagram of the water tank 10 of the heat pump water heater 100 shown in. The detection component includes a water flow detector 70 and a timer (not shown). The water flow detector 70 is arranged at the water inlet 12 of the water tank 10 and is used to measure the water flow rate at the water inlet 12. The timer is used to measure the water inlet duration at the water inlet 12; the first preset value is a preset flow rate value and / or a preset water inlet duration.

[0069] Among them, the water flow detector 70 can be a water flow Hall sensor, which can detect the water flow rate at the water inlet 12. When the water flow rate is greater than the preset flow rate value and the water inlet duration of the water inlet 12 exceeds the preset water inlet duration, it can be determined that there is enough water in the water tank 10, and the control component 50 controls the heat pump system 30 and / or the auxiliary heating component 40 to heat, thereby reducing the probability of dry burning of the water tank 10.

[0070] It can be understood that the detection component can also adopt other components for detecting the water volume, such as an ultrasonic rangefinder, which measures the distance from the horizontal plane through the ultrasonic rangefinder, so as to determine the water volume in the water tank 10. No further description will be given here.

[0071] The water level detector 20, the water flow detector 70 and the timer here can also exist at the same time, which can play a dual anti-dry burning effect on the heat pump water heater 100.

[0072] For the structures of other parts of the present utility model, please refer to the prior art, and no further description will be given in this application.

[0073] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A heat pump water heater, characterized in that: The heat pump water heater comprises: Test pieces; A water tank, wherein the detection element is arranged in the water tank, and the detection element is used to detect the amount of water in the water tank; A heat pump system, the heat pump system comprising a condenser, the condenser being arranged around the side wall of the water tank and used for heating the water in the water tank; an auxiliary heating component, the auxiliary heating component is arranged inside the water tank and is used to heat the water in the water tank; and A control component is communicatively connected with the detection component, the heat pump system, and the auxiliary heating component respectively.

2. The heat pump water heater according to claim 1, characterized in that: The detection member comprises a water level detector, which is arranged at the upper part of the side wall of the water tank in the vertical direction and is used to measure the water level in the water tank; The control component controls the heat pump system and / or the auxiliary heating component to perform heating according to the detected water level being greater than a preset water level value.

3. The heat pump water heater according to claim 2, characterized in that: The water tank is also provided with a water outlet, and the water outlet is arranged above the water level detector in the vertical direction.

4. The heat pump water heater according to claim 2, characterized in that: The auxiliary heating component is arranged below the water level detector in the vertical direction.

5. The heat pump water heater according to claim 2, characterized in that: The water level detector is detachably connected to the side wall of the water tank.

6. The heat pump water heater according to any one of claims 1 to 5, characterized in that: The water tank and the heat pump system are of split structure, and the heat pump system is arranged outdoors.

7. The heat pump water heater according to any one of claims 1 to 5, characterized in that: The heat pump water heater also includes: A first communication line, wherein two ends of the first communication line are respectively connected to the detection component and the control component.

8. The heat pump water heater according to any one of claims 1 to 5, characterized in that: The water tank is a multi-layer structure, which includes an inner liner layer, a heat preservation layer and a shell layer which are sequentially arranged from the inside to the outside.

9. The heat pump water heater according to any one of claims 1 to 5, characterized in that: The heat pump water heater also includes: A temperature sensor is arranged on the water tank and is electrically connected to the control component.

10. The heat pump water heater according to any one of claims 1 to 5, characterized in that: The detection component includes a water flow detector and a timer. The water flow detector is arranged at the water inlet of the water tank to test the water flow speed at the water inlet, and the timer is used to test the water inlet time at the water inlet.

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