Heat pump anti-freezing control device based on photovoltaic solar energy
Through photovoltaic solar power supply, the water pump operation is controlled, which solves the problem of heat pump unit freezing in sudden power outages and low temperature environments, and the continuous flow of water in the unit is achieved, avoiding the occurrence of freezing.
Patent Information
- Application Number
- CN202421212628.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-30
AI Technical Summary
In areas with low temperatures, the heat pump unit is prone to freezing and breaking out of power in a sudden outage, and the existing technology is difficult to discharge water and liquid in time, resulting in damage to the unit.
A heat pump anti-freeze control device based on photovoltaic solar energy is designed, including circuit board, battery, an ambient temperature detection mechanism and a heat pump outlet temperature detection mechanism. The water pump operation is controlled through solar power supply to maintain the flow state of water in the heat pump unit and prevent freezing.
It effectively avoids the heat pump unit from freezing when power is out, ensuring the normal operation of the unit, especially in low temperature environments.
Smart Images
Figure CN222364160U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a heat pump antifreeze control device based on photovoltaic solar energy. Background Art
[0002] In Northeast my country and some cities with lower temperatures, sudden power outages in winter every year will cause heat pump units in large areas to freeze and damage. This is because the anti-freeze operation of the heat pump unit requires electrical energy to support the relevant logical operation of the unit. Therefore, the installation and use of the heat pump unit also clearly points out that it is strictly forbidden to cut off the power to the heat pump unit in winter and when the temperature is low, or the water in the unit must be drained before the power is cut off. However, when encountering a sudden power outage, the water is often unable to be drained in time, which causes the heat pump unit to freeze and damage. Utility Model Content
[0003] In view of the above problems, the utility model provides a heat pump antifreeze control device based on photovoltaic solar energy, which effectively solves the problems pointed out in the background technology.
[0004] The technical solution adopted by the utility model is:
[0005] A heat pump antifreeze control device based on photovoltaic solar energy comprises a circuit board, a heat pump unit, a water pump, a battery connected to the circuit board, an ambient temperature detection mechanism and a heat pump outlet water temperature detection mechanism, wherein the battery is provided with a photovoltaic solar panel for charging the battery, the circuit board is connected to the heat pump unit via a power failure detection circuit, and is connected to the water pump via a solar power supply circuit.
[0006] Preferably, the heat pump outlet water temperature detection mechanism is arranged on the outlet pipe of the heat pump unit.
[0007] Preferably, the ambient temperature detection mechanism is used to detect the external environment temperature, and the heat pump outlet water temperature detection mechanism is used to detect the outlet water temperature of the heat pump unit. Both the ambient temperature detection mechanism and the heat pump outlet water temperature detection mechanism are temperature sensors.
[0008] By detecting the external ambient temperature and the outlet water temperature, data is provided for the solar power supply circuit to control the water pump when the heat pump unit is powered off. When the external ambient temperature is low and the outlet water temperature is low, the heat pump unit may be frozen. The water pump operation is controlled by the solar power supply circuit to keep the water in the heat pump unit flowing to avoid freezing of the heat pump unit.
[0009] The utility model charges the storage battery through the photovoltaic solar panel, and when the heat pump unit is powered off and may cause the heat pump unit to freeze, the storage battery is used to provide electric energy for the water pump to keep the water in the heat pump unit flowing, thereby preventing the heat pump unit from freezing. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the structure of the utility model;
[0011] Figure 2 This is the control principle diagram of the utility model. DETAILED DESCRIPTION
[0012] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.
[0013] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0014] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0015] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.
[0016] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0017] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0018] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.
[0019] like Figure 1 As shown, a heat pump antifreeze control device based on photovoltaic solar energy includes a circuit board, a heat pump unit, a water pump, and a battery connected to the circuit board, an ambient temperature detection mechanism and a heat pump outlet water temperature detection mechanism. The battery is provided with a photovoltaic solar panel for charging the battery. When there is sunlight, the photovoltaic solar panel charges the battery. The circuit board is connected to the heat pump unit through a power-off detection circuit. The power-off detection circuit is used to detect whether the heat pump unit is powered off. The circuit board is connected to the water pump through a solar power supply circuit. The solar power supply circuit can supply power to the water pump when the heat pump unit is powered off.
[0020] The heat pump outlet water temperature detection mechanism is arranged on the outlet pipe of the heat pump unit.
[0021] The ambient temperature detection mechanism is used to detect the external environment temperature, and the heat pump outlet water temperature detection mechanism is used to detect the outlet water temperature of the heat pump unit. The ambient temperature detection mechanism and the heat pump outlet water temperature detection mechanism are both temperature sensors.
[0022] Figure 2 The control logic of the utility model is shown. The circuit board monitors whether the heat pump unit has power through the power failure detection circuit. The specific control method is as follows:
[0023] 1. If the power-off detection circuit detects that the heat pump unit has power, it means that there is no risk of the heat pump unit being frozen. At this time, the circuit board will control the solar power supply circuit to stop supplying power to the water pump;
[0024] 2. If the power-off detection circuit detects that the heat pump unit has no electricity, it means that the heat pump unit may be at risk of freezing, and the following control is performed: a. If the ambient temperature detected by the ambient temperature detection mechanism is less than or equal to B℃, and the outlet water temperature detected by the heat pump outlet water temperature detection mechanism is less than or equal to A℃, the circuit board will control the solar power supply circuit to power the water pump, so that the water in the heat pump unit remains flowing, thereby achieving the purpose of anti-freezing; b. During the execution of a, if the ambient temperature detected by the ambient temperature detection mechanism is greater than C℃, the circuit board will control the solar power supply circuit to stop supplying power to the water pump.
[0025] Among them, A, B, and C are all constants, whose specific values can be determined based on multiple experiments, and C>B.
[0026] Finally, it should be noted that the above examples are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. All variations that can be directly derived or associated with the content disclosed by a person skilled in the art from the present invention should be considered as the protection scope of the present invention.
Claims
1. A heat pump antifreeze control device based on photovoltaic solar energy, characterized in that: The invention comprises a circuit board, a heat pump unit, a water pump, a battery connected to the circuit board, an ambient temperature detection mechanism and a heat pump outlet water temperature detection mechanism. The battery is provided with a photovoltaic solar panel for charging the battery. The circuit board is connected to the heat pump unit through a power failure detection circuit and is connected to the water pump through a solar power supply circuit.
2. A heat pump antifreeze control device based on photovoltaic solar energy according to claim 1, characterized in that: The heat pump outlet water temperature detection mechanism is arranged on the outlet pipe of the heat pump unit.
3. The heat pump antifreeze control device based on photovoltaic solar energy according to claim 1 is characterized in that: The ambient temperature detection mechanism is used to detect the external environment temperature, and the heat pump outlet water temperature detection mechanism is used to detect the outlet water temperature of the heat pump unit. The ambient temperature detection mechanism and the heat pump outlet water temperature detection mechanism are both temperature sensors.