Self-heating mechanical air source heat pump dust cover
By designing a mechanical air source heat pump dust cover with self-heating, the problem of snow accumulation in the air source heat pump in winter is solved, and the air tube is automatically closed during non-use periods, effectively protecting and maintaining the fan and extending the service life.
Patent Information
- Application Number
- CN202421567351.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-03
AI Technical Summary
When used in winter, air source heat pumps are prone to snow accumulation in fan blades, causing the motor to burn out, and it requires manual cleaning during non-use periods, which is time-consuming and labor-consuming.
A mechanical air source heat pump dust cover with self-heating is designed to automatically close the top of the air drum and activate the heating element to prevent snow and icing, while also closing the air drum during non-use periods to prevent external objects from covering.
Effectively prevent snow and icing on the fan surface, avoid burning the motor, save manpower and material resources, reduce maintenance frequency, and extend the service life of the fan.
Smart Images
Figure CN222824588U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of protective devices, in particular to a mechanical air source heat pump dust cover with self-heating function. Background Art
[0002] Air source heat pump is an energy regeneration device that uses air heat energy for heating. It is frequently used in cold water phase water heaters, hot and cold air conditioners and heating systems. Air source heat pumps extract heat from the air for heating, which is more energy efficient than traditional electric heating equipment. Generally, its energy efficiency ratio (COP) can reach 3 to 4 times. Modern air source heat pump designs can work efficiently in a wide range of ambient temperatures and provide reliable heating even in cold winters.
[0003] However, air source heat pumps are prone to frost when used in winter. The current existing technologies are designed to address the problem of freezing and icing on the outer surface of air source heat pumps, which reduces heat exchange efficiency. However, they ignore the impact of the external environment on the fan, especially most models of air source heat pumps on the market are equipped with fans on the top. When it snows in winter, it is easy to cause snow to accumulate on the surface of the fan blades of the unit. Especially when the air source heat pump is turned on, the excessive stall current at the moment of power-on startup of the fan can easily cause the fan motor to burn out. Moreover, when the heat pump is not used for a long time in the non-heating and non-cooling seasons, although the unit itself has a fan guard net, the gap between the guard nets is too large, and the unit's fan blades are easily covered by leaves and branches, etc., which need to be manually cleared before operation, which is time-consuming and labor-intensive. Therefore, there is an urgent need for a structure to protect the fan, which can ensure the normal use of the unit in winter and facilitate the maintenance of the fan at ordinary times. Utility Model Content
[0004] In order to solve the problems existing in the background technology, the utility model proposes a mechanical air source heat pump dust cover with self-heating, which can be connected to the controller of the air source heat pump, automatically close the top of the wind tube when the heat pump is turned off, and automatically start the heating element to keep the top free of snow and ice, thereby protecting the fan, maintaining and servicing the fan, and extending the service life of the fan.
[0005] In order to achieve the above purpose, the utility model adopts the following scheme:
[0006] A mechanical air source heat pump dust cover with self-heating, the air source heat pump is connected to a controller, the air source heat pump includes a wind tube, the dust cover includes a protective ring, one end of the protective ring is sleeved on the top outer wall of the wind tube, the other end of the protective ring is connected to a protective cover that can be switched by the controller, the protective ring includes two detachable semi-annular bodies, a heating element is provided inside the end surface of the protective cover close to the wind tube, the heating element is electrically connected to the controller, and the heating element is connected to a photovoltaic panel via a battery.
[0007] Furthermore, the ends of the two semi-annular bodies connected are provided with end ears, the two semi-annular bodies are connected by bolts, and the end ears are provided with threaded holes for the bolts to pass through.
[0008] Furthermore, any of the semi-annular bodies is provided with a connecting portion, the connecting portion is provided with a hinge, and the protective cover is connected to the semi-annular body in an opening and closing manner via the hinge.
[0009] Furthermore, a motor is provided on the connecting portion at either the left or right side of the hinge, the output shaft of the motor is connected to the hinge shaft, and the controller includes a single-chip microcomputer, which is electrically connected to the motor.
[0010] Furthermore, a temperature sensor and a patch pressure sensor are provided on the end surface of the protective cover away from the air duct, the temperature sensor and the patch pressure sensor are electrically connected to the single chip microcomputer, and the single chip microcomputer is also electrically connected to the heating element.
[0011] Furthermore, the photovoltaic panel is arranged on the top of the air source heat pump, and the photovoltaic panel is connected to the battery through an inverter.
[0012] The utility model has the following beneficial effects: the dust cover of the present solution is sleeved on the outer wall of the top of the wind tube. In winter snowy days, when the air source heat pump is turned off, the protective cover of the dust cover can be automatically closed, and the heating element in the protective cover can be started. On the one hand, the wind tube can be closed to prevent snow from accumulating on the surface of the fan. On the other hand, the heating element can be used to keep the top of the protective cover free of snow and ice, so as to prevent the excessive stall current at the moment of the next electric start of the air source heat pump from easily causing the fan motor to burn out. Moreover, during the non-use period of the air source heat pump, the dust cover can close the wind tube to prevent it from being covered by leaves and branches, etc., and there is no need for manual cleaning before operation, which saves manpower and material resources, and thus maintains and maintains the fan and extends the service life of the fan.
[0013] In addition, the air source heat pump controls the dust cover through the single chip microcomputer. When the air source heat pump is turned off, the single chip microcomputer starts the dust cover to automatically close the protective cover, which is convenient for daily use. Furthermore, the use of photovoltaic panels to convert light energy into electrical energy used by heating elements has a good energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic structural diagram of the dust cover of the utility model.
[0015] Figure 2 This is a schematic diagram of the structure of an air source heat pump according to an embodiment of the utility model;
[0016] In the figure: 1. dust cover; 101. protective ring; 102. protective cover; 103. end ear; 104. connecting part; 105. motor; 106. bolt; 2. air duct. DETAILED DESCRIPTION
[0017] In order to make the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the given embodiment is only one implementation method and does not represent all embodiments.
[0018] Combination Figure 1-Figure 2 This embodiment provides a mechanical air source heat pump dust cover with self-heating, the air source heat pump is connected to a controller, the air source heat pump includes a wind tube 2, the dust cover 1 includes a protective ring 101, one end of the protective ring 101 is sleeved on the top outer wall of the wind tube 2, and the other end of the protective ring 101 is openably connected to a protective cover 102, the protective ring 101 includes two detachably connected semi-circular bodies, the protective cover 102 is provided with a heating element inside the end surface close to the wind tube 2, the heating element is electrically connected to the controller, and the heating element is connected to a photovoltaic panel through a battery. The dust cover 1 is sleeved on the top outer wall of the wind tube 2. In winter snowy days, when the air source heat pump is turned off, the protective cover 102 of the dust cover 1 can be automatically closed, and the automatic heating element in the protective cover 102 can be started. On the one hand, the wind tube can be closed to prevent snow from accumulating on the surface of the fan, and on the other hand, the heating element can be used to keep the top of the protective cover free of snow and ice. As a preferred embodiment, the heating element includes a plurality of evenly distributed carbon fiber heating wires.
[0019] Specifically, the ends of the two semi-circular bodies connected are provided with end ears 103, and the two semi-circular bodies are connected by bolts 106. The end ears 103 are provided with threaded holes for the bolts 106 to penetrate. In order to facilitate the connection with the wind tube 2, during installation, the two semi-circular bodies are first buckled on the outer surface of the wind tube 2 respectively, and then connected by bolts 106 to form a complete annular protective ring 101.
[0020] Specifically, any of the semi-circular bodies is provided with a connection portion 104, and a hinge is provided on the connection portion 104, and the protective cover 102 is connected to the semi-circular body through the hinge. A motor 105 is provided on either side of the hinge on the connection portion 104, and the output shaft of the motor 105 is connected to the hinge shaft. The controller includes a single-chip microcomputer, and the single-chip microcomputer is electrically connected to the motor 105. The rotation of the output shaft of the motor 105 can drive the hinge to rotate and then open and close the protective cover 102. Through the electrical connection with the single-chip microcomputer, after the single-chip microcomputer receives the shutdown signal of the air source heat pump, the single-chip microcomputer controls the motor 105 to start, and the motor 105 rotates forward to drive the protective cover 102 to rotate, thereby automatically closing the protective cover 102 of the dust cover 1 and sealing the air duct 2. When the air source heat pump is turned on, the single-chip microcomputer receives the start-up signal of the air source heat pump, and the single-chip microcomputer controls the motor 105 to start, and the motor 105 rotates reversely to drive the protective cover 102 to rotate, thereby automatically opening the protective cover 102 of the dust cover 1 without hindering the operation and heat dissipation of the fan.
[0021] Specifically, a temperature sensor and a patch pressure sensor are provided on the end surface of the protective cover 102 away from the wind tube 2. The temperature sensor and the patch pressure sensor are electrically connected to the single chip microcomputer, and the single chip microcomputer is also electrically connected to the heating element. As a preferred solution, when the patch pressure sensor detects that the snow pressure is higher than 80g, and the temperature sensor detects that the protective cover 102 is lower than 0°C, the single chip microcomputer starts the snow melting instruction, and then starts the heating element to heat and melt the snow on the protective cover 102. When the temperature sensor detects that the temperature of the protective cover 102 exceeds 40 degrees, the single chip microcomputer turns off the heating element.
[0022] Specifically, the photovoltaic panel is arranged on the top of the air source heat pump, and the photovoltaic panel is connected to the storage battery through an inverter. The photovoltaic panel is used to convert light energy into electrical energy used by the heating element, which has a good energy-saving effect.
[0023] When in use, the two semi-circular bodies are sleeved on the outer wall of the wind tube 2, and the two semi-circular bodies are fixed into a complete annular protective ring 101 by bolts 106, and the protective ring 101 is fixed and fastened to the wind tube 2. When the air source heat pump is turned off, the single chip microcomputer receives the shutdown signal and controls the motor 105 to close the protective cover 102. When the chip pressure sensor detects that the snow pressure is higher than 80g, and the temperature sensor detects that the protective cover 102 is lower than 0°C, the single chip microcomputer starts the snow melting instruction, and then starts the heating element to heat and melt the snow on the protective cover 102. When the temperature sensor detects that the temperature of the protective cover 102 exceeds 40 degrees, the single chip microcomputer turns off the heating element.
[0024] The above is a detailed description of the specific implementation of the utility model in conjunction with the drawings, but the utility model is not limited to the described implementation. For those skilled in the art, without departing from the principle and spirit of the utility model, various changes, modifications, substitutions and variations are made to these implementations, which still fall within the scope of protection of the utility model.
Claims
1. A mechanical air source heat pump dust cover with self-heating, the air source heat pump is connected to a controller, the air source heat pump comprises a wind tube (2), characterized in that: The dust cover (1) comprises a protective ring (101), one end of which is sleeved on the top outer wall of the wind tube (2), and the other end of which is connected to a protective cover (102) in an openable and closable manner via a controller, the protective ring (101) comprising two detachably connected semi-annular bodies, a heating element being provided inside the end surface of the protective cover (102) close to the wind tube (2), the heating element being electrically connected to the controller, and the heating element being connected to a photovoltaic panel via a storage battery.
2. The dust cover of a mechanical air source heat pump with self-heating according to claim 1, characterized in that: The ends of the two semi-annular bodies connected are provided with end ears (103), the two semi-annular bodies are connected by bolts (106), and the end ears (103) are provided with threaded holes for the bolts (106) to pass through.
3. A dust cover for a mechanical air source heat pump with self-heating according to claim 1 or 2, characterized in that: A connecting portion (104) is provided on the outer wall of any of the semi-annular bodies, and a hinge is provided on the connecting portion (104). The protective cover (102) is connected to the semi-annular body in an opening and closing manner via the hinge.
4. The dust cover of a mechanical air source heat pump with self-heating according to claim 3, characterized in that: A motor (105) is provided on the connection portion (104) on either the left or right side of the hinge, the output shaft of the motor (105) is connected to the hinge shaft, and the controller comprises a single-chip microcomputer, which is electrically connected to the motor (105).
5. The dust cover of a mechanical air source heat pump with self-heating according to claim 4, characterized in that: A temperature sensor and a patch-type pressure sensor are provided on the end surface of the protective cover (102) away from the wind tube (2); the temperature sensor and the patch-type pressure sensor are electrically connected to the single-chip microcomputer; and the single-chip microcomputer is also electrically connected to the heating element.
6. The dust cover of a mechanical air source heat pump with self-heating according to claim 1, characterized in that: The photovoltaic panel is arranged on the top of the air source heat pump, and the photovoltaic panel is connected to the battery through an inverter.