Constant-temperature water return device
By introducing an electronic control system, including water pressure sensors and other sensors, in the constant temperature return water device, the problem that existing water heaters cannot detect water pressure is solved, prevent the device from being damaged and realize multiple operating modes, improving the safety and use of the device flexibility.
Patent Information
- Application Number
- CN202420888902.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The existing water heaters with zero cold water function cannot detect the water pressure, resulting in the temperature-controlled return water device that may be damaged in the state of water outage, lack of water or insufficient water pressure.
A fixed temperature return device is designed, including a shell, a cold water connector group, a hot water connector group, a return pipe, a check valve and a water pump, and an electronic control system, including a water pressure sensor, a water temperature sensor, a water flow sensor, and a wireless communication Modules, human sensors and touch switches are used to detect water pressure and stop the pump from working when it is below the set threshold to prevent damage.
Through the water pressure detection function of the electronic control system, the water pump is prevented from idling in the state of water shutdown or insufficient water pressure, protect the device from safety, and realizes a variety of working modes such as manual, water flow, remote control, timing and human body detection modes.
Smart Images
Figure CN222210510U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of domestic hot water supply, in particular to a constant temperature water return device. Background Art
[0002] For a water heater with a zero cold water function, in a user's home without a return pipe, since there are only hot and cold water pipes, in order to achieve zero cold water circulation preheating, it is necessary to use the cold water pipe as a return pipe, and use a one-way valve to connect the cold water pipe and the hot water pipe to form a circulation loop. When the zero cold water function is in operation, the water heater can heat the cold water in the cold water pipe and circulate it to the water-using equipment, achieving the zero cold water effect of boiling water or heating water at the water-using equipment terminal.
[0003] Existing water heaters with zero cold water function cannot detect water pressure. Idle operation in the state of water outage, water shortage or insufficient water pressure will damage the entire constant temperature return water device. Utility Model Content
[0004] In view of the defects in the prior art, the utility model provides a constant temperature water return device to solve the technical problems raised in the background technology.
[0005] A constant temperature water return device, comprising: a shell, the shell having a cold water joint group and a hot water joint group;
[0006] The cold water joint group includes a first cold water joint and a second cold water joint, a first connecting pipe is connected between the first cold water joint and the second cold water joint, and the first connecting pipe is arranged in the shell;
[0007] The hot water connector group includes a first hot water connector and a second hot water connector, a second connecting pipe is connected between the first hot water connector and the second hot water connector, and the second connecting pipe is arranged in the housing;
[0008] The first connecting pipe and the second connecting pipe are connected through a return pipe, and a one-way valve and a water pump are arranged on the return pipe. The one-way valve is unidirectionally connected from the second connecting pipe to the first connecting pipe, and the water pump transports the water in the second connecting pipe to the first connecting pipe;
[0009] It also includes an electric control system, which includes a controller and a water pressure sensor. The water pressure sensor and a water pump are both connected to the controller by electrical signals, and the water pressure sensor is arranged on the water return pipeline.
[0010] Furthermore, the electric control system also includes: a water temperature sensor, which is arranged on the water return pipeline; and the water temperature sensor is electrically connected to the controller.
[0011] Furthermore, the electric control system also includes: a water flow sensor, which is arranged on the second connecting pipe; and the water flow sensor is electrically signal-connected to the controller.
[0012] Furthermore, the electric control system further includes: a wireless communication module, and the wireless communication module is connected to the controller via an electrical signal.
[0013] Furthermore, the wireless communication module includes a 4G module, a 5G module and / or a WiFi module.
[0014] Furthermore, the electric control system further comprises: a human body sensor, which is arranged in the room and is electrically signal-connected to the controller.
[0015] Furthermore, the human body sensor is an infrared sensor.
[0016] Furthermore, the electric control system further includes: a touch switch, and the touch switch is electrically signal-connected to the controller.
[0017] Furthermore, the controller is a single chip microcomputer.
[0018] The beneficial effects of the utility model are embodied in:
[0019] The constant-temperature water return device provided by the utility model has a water pressure sensor in its electric control system, which can detect the water pressure of the circulating water circuit. When the water pressure is lower than the set water pressure threshold, the controller controls the water pump to stop working, which can prevent the water pump from idling in the state of water outage, water shortage or insufficient water pressure, and plays the role of a protective device.
[0020] In addition, the electronic control system also includes a water temperature sensor, a water flow sensor, a wireless communication module, a human body sensor and a touch switch, so that the electronic control system can realize multiple working modes such as manual mode, water flow mode, remote control mode, timing mode and human body detection mode. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.
[0022] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. For ordinary technicians in this field, other accompanying drawings can also be obtained based on these accompanying drawings without paying creative labor.
[0023] Figure 1 A schematic diagram of the structure of a constant temperature water return device provided by an embodiment of the utility model;
[0024] Figure 2 A schematic diagram of the installation pipeline connection structure of the constant temperature return water device provided in an embodiment of the utility model;
[0025] Figure 3 An electrical structure block diagram of an electric control system provided by an embodiment of the utility model;
[0026] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The above-mentioned drawings have shown clear embodiments of this application, which will be described in more detail later. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0027] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.
[0028] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.
[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" 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 limiting the present invention.
[0030] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.
[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0032] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0033] like Figure 1 , Figure 2 As shown, the utility model provides a constant temperature water return device, which can be installed on a water-using device. The constant temperature water return device includes a housing 1, and the housing 1 has a cold water joint group and a hot water joint group. The cold water joint group includes a first cold water joint 2 and a second cold water joint 3, and a first connecting pipe 4 is connected between the first cold water joint 2 and the second cold water joint 3, and the first connecting pipe 4 is arranged in the housing 1. The first cold water joint 2 is connected to the cold water pipe 5 of the water heater 11, and the second cold water joint 3 is connected to the cold water pipe of the water-using device 6. The hot water joint group includes a first hot water joint 7 and a second hot water joint 8, and a second connecting pipe 9 is connected between the first hot water joint 7 and the second hot water joint 8, and the second connecting pipe 9 is arranged in the housing 1. The first hot water joint 7 is connected to the hot water pipe 10 of the water heater 11, and the second hot water joint 8 is connected to the hot water pipe of the water-using device 6. The water-using device 6 can be a water-using facility such as a wash basin and a shower head.
[0034] The first connecting pipe 4 and the second connecting pipe 9 are connected through a return pipe 12, and a one-way valve 13 and a water pump 14 are provided on the return pipe 12. The one-way valve 13 is one-way from the second connecting pipe 9 to the first connecting pipe 4, and the water pump 14 transports the water in the second connecting pipe 9 to the first connecting pipe 4. The hot water pipe 10 of the water heater 11, the cold water pipe 5 of the water heater 11, the first connecting pipe 4, the second connecting pipe 9 and the return pipe 12 constitute a circulating water circuit.
[0035] like Figure 3As shown, the device also includes an electronic control system, which includes a controller and a water pressure sensor 15, a water temperature sensor 16, a water flow sensor 17, a wireless communication module, a human body sensor and a touch switch. The water pressure sensor 15, the water temperature sensor 16, the water flow sensor 17, the wireless communication module, the human body sensor, the touch switch and the water pump 14 are all connected to the controller. The controller can be installed in the housing 1. The water pressure sensor 15 is arranged on the return water pipeline 12 to detect the water pressure in the return water pipeline 12. When the water pressure is lower than the set water pressure threshold, the controller controls the water pump 14 to stop working, which can prevent the water pump 14 from idling when there is no water, water shortage or insufficient water pressure, thereby playing the role of a protective device.
[0036] The water temperature sensor 16 is arranged on the water return pipe 12, and the water temperature sensor 16 is electrically connected to the controller. The water temperature sensor 16 is used to collect the water temperature in the water return pipe 12. The water flow sensor 17 is arranged on the second connecting pipe 9, and the water flow sensor 17 is electrically connected to the controller. When the user uses the water-using device 6 to discharge hot water, it detects the flow of water in the second connecting pipe 9 and sends a trigger signal to the controller. If the water temperature in the water return pipe 12 is lower than the preset temperature threshold at this time, the controller controls the water pump 14 to start, and circulates the water in the hot water pipe 10 of the water heater 11 into the water heater 11 for heating, until the water temperature in the water return pipe 12 reaches the preset temperature threshold, and the controller controls the water pump 14 to stop working. This process is the water flow mode of the constant temperature water return device.
[0037] The wireless communication module is connected to the controller by electrical signals. The wireless communication module includes a 4G module, a 5G module and / or a WiFi module. The user establishes a wireless communication connection with the controller through a mobile terminal and sends a remote control command to the controller to achieve remote control. For example, the user can send a zero cold water function start command to the controller through a smart phone. After receiving the command, the controller controls the water pump 14 to start, and circulates the water in the hot water pipe 10 of the water heater 11 into the water heater 11 for heating until the water temperature in the return pipe 12 reaches a preset temperature threshold. The controller controls the water pump 14 to stop working. This process is the remote control mode of the constant temperature return water device.
[0038] The human body sensor is set in the room, and the human body sensor is connected to the controller by electrical signals. For example, the human body sensor can be set at the entrance of the door. When the human body sensor detects that the user returns home and enters the room, it sends a trigger signal to the controller, and the controller controls the water pump 14 to start, and the water in the hot water pipe 10 of the water heater 11 circulates into the water heater 11 for heating until the water temperature in the return water pipe 12 reaches a preset temperature threshold, and the controller controls the water pump 14 to stop working. This process is the human body detection mode of the constant temperature return water device.
[0039] In this embodiment, the human body sensor is an infrared sensor.
[0040] It is understandable that the touch switch can be arranged together with the controller or separately, and the touch switch and the controller can be connected by wire or wirelessly. The user can manually send a zero cold water function start instruction to the controller through the touch switch. When the controller receives the trigger signal of the touch switch, the controller controls the water pump 14 to start, and circulates the water in the hot water pipe 10 of the water heater 11 into the water heater 11 for heating until the water temperature in the return water pipe 12 reaches the preset temperature threshold, and the controller controls the water pump 14 to stop working. This process is the manual mode of the constant temperature return water device.
[0041] In this embodiment, the controller may be a single chip microcomputer. Since the controller itself has a timing function, the zero cold water function can be turned on at a fixed time to achieve a timing mode.
[0042] Finally, it should be noted that the various technical features of the technical solution of the present application can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present application.
[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and should all be included in the scope of the claims and specification of the present invention.
Claims
1. A constant temperature water return device, characterized in that: include: A shell having a cold water connector group and a hot water connector group; The cold water joint group includes a first cold water joint and a second cold water joint, a first connecting pipe is connected between the first cold water joint and the second cold water joint, and the first connecting pipe is arranged in the shell; The hot water connector group includes a first hot water connector and a second hot water connector, a second connecting pipe is connected between the first hot water connector and the second hot water connector, and the second connecting pipe is arranged in the housing; The first connecting pipe and the second connecting pipe are connected through a return pipe, and a one-way valve and a water pump are arranged on the return pipe. The one-way valve is unidirectionally connected from the second connecting pipe to the first connecting pipe, and the water pump transports the water in the second connecting pipe to the first connecting pipe; It also includes an electric control system, which includes a controller and a water pressure sensor. The water pressure sensor and a water pump are both connected to the controller by electrical signals, and the water pressure sensor is arranged on the water return pipeline.
2. A constant temperature water return device according to claim 1, characterized in that: The electric control system further comprises: a water temperature sensor, which is arranged on the water return pipeline; and the water temperature sensor is connected to the controller by an electrical signal.
3. A constant temperature water return device according to claim 1, characterized in that: The electric control system further comprises: a water flow sensor, which is arranged on the second connecting pipe; and the water flow sensor is connected to the controller by electrical signals.
4. A constant temperature water return device according to claim 1, characterized in that: The electric control system further comprises: a wireless communication module, and the wireless communication module is connected to the controller by electrical signals.
5. A constant temperature water return device according to claim 4, characterized in that: The wireless communication module includes a 4G module, a 5G module and / or a WiFi module.
6. A constant temperature water return device according to claim 1, characterized in that: The electric control system further comprises: a human body sensor, which is arranged in the room and is connected to the controller by electrical signals.
7. A constant temperature water return device according to claim 6, characterized in that: The human body sensor is an infrared sensor.
8. A constant temperature water return device according to claim 1, characterized in that: The electric control system further includes: a touch switch, and the touch switch is electrically connected to the controller.
9. A constant temperature water return device according to any one of claims 1 to 8, characterized in that: The controller is a single chip microcomputer.