Heater with double-inlet and double-outlet water paths

Abstract

The invention relates to the technical field of instant water heaters, in particular to a heater with a double-inlet and double-outlet water path. The heater comprises a heating assembly, the two ends of the heating assembly are communicated with a water inlet base and a water outlet base respectively, the water inlet base is provided with a first water inlet end and a second water inlet end, and the water outlet base is provided with a first water outlet end and a second water outlet end; a threaded pipe is arranged in the heating assembly, a heating channel is arranged on the outer side of the threaded pipe, and a direct flow channel is arranged in an inner cavity of the threaded pipe. The first water path comprises a first water inlet end, a direct flow channel and a first water outlet end; the second water path comprises a second water inlet end, a heating channel and a second water outlet end; a water valve is arranged on the second water path. By arranging the two independent water paths, the heater can still stably output cold water under the condition that the water valve breaks down, the water valve is used for controlling connection, disconnection and mixing of the two water paths, the constant-temperature adjusting function can be achieved, and the emergency function and stability of the faucet are improved.

Description

Technical Field

[0001] The invention relates to the technical field of instant water heaters, in particular to a heater with double-inlet and double-outlet water paths. Background Art

[0002] For example, the Chinese invention patent with announcement number CN104896185B discloses a new type of instant hot water faucet structure and its instant water heating control method, which includes a faucet body and inlet and outlet pipes arranged in the faucet body, and a valve body and a heating body arranged in sequence between the inlet and outlet pipes; the valve body is a one-inlet and two-outlet flow control water valve, whose water inlet is connected to the water inlet pipe, and a cold and hot water channel structure is provided between the valve body and the water outlet pipe. The cold and hot water channel structure includes a body with first and second water inlet holes and first and second water outlet holes, the first and second water inlet holes are respectively connected to the cold water outlet and hot water outlet of the valve body, and the first and second water outlet holes are both connected to the outlet pipe.

[0003] The problem with the existing technology is that the water flow in the cold and hot water channels depends on the water flow at the same water inlet. The water flow from the water inlet to the cold and hot water channels is controlled by the valve body. When the valve body fails, the function of adjusting the constant temperature of the hot and cold water mixture will be affected, and it may even be difficult to ensure the basic water flow function of the faucet.

[0004] Therefore, the existing technology needs to be improved. Summary of the Invention

[0005] In order to solve the above technical problems, the purpose of the present invention is to provide a heater with a dual-inlet and dual-outlet water path structure and stable water output.

[0006] The technical solution adopted by the present invention to solve the problem is: a heater with dual-inlet and dual-outlet water paths, including a heating component, wherein both ends of the heating component are respectively connected to a water inlet base and a water outlet base, and the characteristics are:

[0007] The water inlet base is provided with a first water inlet end and a second water inlet end, and the water outlet base is provided with a first water outlet end and a second water outlet end;

[0008] The heating component is provided with a heating channel and a DC channel;

[0009] The heater is provided with a first water path and a second water path, the first water path includes a first water inlet, a direct current channel and a first water outlet, and the second water path includes a second water inlet, a heating channel and a second water outlet;

[0010] A water valve is provided on the second water channel, and the water valve is used to control the second water channel to be connected or disconnected with the first water channel.

[0011] As a further improvement of the above technical solution, a valve seat is provided in the middle of the water inlet base, and the water valve is installed in the valve seat. The water valve can control the connection and flow rate between the first water inlet end and the second water channel, as well as control the connection and flow rate between the second water inlet end and the second water channel.

[0012] As a further improvement of the above technical solution, the valve seat is provided with a first water inlet hole communicating with the first water inlet end and a second water inlet hole communicating with the second water inlet end, and the valve seat is also provided with a water outlet hole;

[0013] The water valve includes a static valve plate, which is provided with a first valve hole and a second valve hole. The first valve hole is used to connect the first water inlet hole and the water outlet hole, and the second valve hole is used to connect the second water inlet hole and the water outlet hole. The water outlet hole is connected to the heating channel, and a motor is connected to the water valve.

[0014] As a further improvement of the above technical solution, the heating assembly includes a heating tube and a radiator, the heating tube is sleeved in the radiator, and a secondary tube body is detachably connected to one side of the radiator, and a guide cavity is provided in the secondary tube body;

[0015] A main mounting groove and a secondary mounting groove are provided on the top of the water inlet base. The main mounting groove and the secondary mounting groove are arranged adjacent to each other. The heating tube is fixedly connected to the main mounting groove. The secondary tube body is fixedly connected to the secondary mounting groove. The secondary mounting groove communicates with the water outlet and the diversion cavity.

[0016] As a further improvement of the above technical solution, a threaded tube is provided inside the heating tube, the heating channel is provided between the outer wall of the threaded tube and the inner wall of the heating tube, and the direct current channel is provided in the inner cavity of the threaded tube;

[0017] A connecting column is provided in the main installation groove, the threaded pipe is plugged into the connecting column, and the connecting column communicates with the first water inlet end and the direct current channel.

[0018] As a further improvement of the above technical solution, it also includes a water passage, which is connected to the bottom of the main installation groove and the auxiliary installation groove, and the water passage connects the guide cavity and the heating channel.

[0019] As a further improvement of the above technical solution, a water outlet temperature sensor is provided in the second water outlet;

[0020] Alternatively, a water inlet temperature sensor and a water outlet temperature sensor are respectively provided in the water passage and the second water outlet end.

[0021] As a further improvement of the above technical solution, a water flow sensor is provided in the auxiliary installation groove, and the water flow sensor is used to detect the interruption and flow rate of water in the diversion cavity.

[0022] As a further improvement of the above technical solution, it also includes a main control circuit board, the water inlet temperature sensor, the water outlet temperature sensor and the water flow sensor are all electrically connected to the main control circuit board, a thyristor is also connected in series between the main control circuit board and the heating tube, and the main control circuit board is electrically connected to the motor and the heating tube.

[0023] Preferably, the heater is connected to an external water heater, and the second water inlet is connected to the hot water output of the water heater.

[0024] The beneficial effects of the present invention are:

[0025] 1. By setting up a dual water channel structure with dual water inlets and dual water outlets, the separate first water channel is not controlled by the water valve. Even if the water valve fails, cold water can still be output through the faucet switch, which increases the emergency function and safety of the faucet.

[0026] 2. The water valve can control the on-off of the first water channel and the second water channel. When the water temperature in the second water channel is too high, the cold water in the first water channel can be introduced into the second water channel to achieve the function of regulation and constant temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 An exploded view of the present invention;

[0030] Figure 3 This is a schematic structural diagram of the water inlet base and the water valve of the present invention;

[0031] Figure 4 for Figure 3 3D exploded view of

[0032] Figure 5 for Figure 3 A three-dimensional cross-sectional view of

[0033] Figure 6 A bottom view of the present invention;

[0034] Figure 7 for Figure 5 Cross-sectional view in the AA direction;

[0035] Figure 8 for Figure 5 Cross-sectional view in the BB direction;

[0036] Figure 9 This is a schematic diagram of the installation of the heater and water heater of the present invention.

[0037] In the figure: 1-water inlet base, 11-first water inlet end, 12-second water inlet end, 13-main mounting groove, 131-connecting column, 14-auxiliary mounting groove, 15-water passage, 16-valve seat, 161-first water inlet hole, 162-second water inlet hole, 163-water outlet hole, 2-heating component, 21-heating pipe, 211-heating channel, 22-radiator, 23-threaded pipe, 231-DC channel, 3-water outlet base, 31-first water outlet end, 32-second water outlet end, 4-water inlet temperature sensor, 5-water flow sensor, 6-water outlet temperature sensor, 7-water valve, 71-static valve plate, 711-first valve hole, 712-second valve hole, 8-motor, 9-auxiliary tube body, 91-diversion cavity, a-first water path, b-second water path. DETAILED DESCRIPTION

[0038] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0039] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0040] In the description of the present invention, the meaning of "several" is one or more, the meaning of "many" is more than two, and the meanings of "greater than", "less than", "exceed" and "exceed" are not inclusive of the number itself, while the meanings of "above", "below", "within" and "include" are inclusive of the number itself. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features. In the description of the present invention, unless otherwise clearly defined, the terms "set", "install", "connect" and "connect" should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0041] Reference Figures 1 to 4 A heater with dual water inlets and outlets comprises a heating assembly 2, both ends of which are connected to a water inlet base 1 and a water outlet base 3;

[0042] The water inlet base 1 is provided with a first water inlet end 11 and a second water inlet end 12, and the water outlet base 3 is provided with a first water outlet end 31 and a second water outlet end 32;

[0043] The heating component 2 is provided with a heating channel 211 and a direct current channel 231;

[0044] The heater is provided with a first water path a and a second water path b. The first water path a includes a first water inlet end 11, a direct current channel 231 and a first water outlet end 31. The second water path b includes a second water inlet end 12, a heating channel 211 and a second water outlet end 32.

[0045] A water valve 7 is provided on the second water channel b, and the water valve 7 can control the second water channel b to be connected or disconnected with the first water channel a.

[0046] Preferably, refer to Figure 9 The heater is connected to an external water heater, and the second water inlet end 12 is connected to the hot water output end of the water heater.

[0047] In a preferred embodiment, cold water flows through the first water path a, and hot water flows through the second water path b.

[0048] Preferably, a valve seat 16 is provided in the middle of the water inlet base 1, and the water valve 7 is installed in the valve seat 16. The water valve 7 can control the connection and flow rate between the first water inlet end 11 and the second water path b, as well as control the connection and flow rate between the second water inlet end 12 and the second water path b.

[0049] Preferably, refer to Figures 3 and 4 The valve seat 16 is provided with a first water inlet hole 161 communicating with the first water inlet end 11 and a second water inlet hole 162 communicating with the second water inlet end 12, and the valve seat 16 is also provided with a water outlet hole 163;

[0050] The water valve 7 includes a static valve plate 71, on which a first valve hole 711 and a second valve hole 712 are provided. The first valve hole 711 is used to connect the first water inlet hole 161 and the water outlet hole 163, and the second valve hole 712 is used to connect the second water inlet hole 162 and the water outlet hole 163. The water outlet hole 163 is connected to the heating channel 211. A motor 8 is connected to the water valve 7.

[0051] Under normal conditions, the motor 8 drives the water valve 7 to operate, blocking the first water inlet hole 161, thereby cutting off the connection between the first water path a and the second water path b. The water flow in the first water path a does not need to pass through the water valve 7. After flowing into the water inlet base 1, it flows directly to the first water outlet end 31 through the direct current channel 231 and is not controlled by the water valve 7. Even if the water valve 7 fails and closes, the heater can still output cold water stably.

[0052] Preferably, refer to Figure 3 、 Figure 5 、 Figure 7 and Figure 8 The heating assembly 2 includes a heating tube 21, one side of the heating tube 21 is detachably connected to a secondary tube body 9, and a guide cavity 91 is provided in the secondary tube body 9;

[0053] A main mounting groove 13 and a secondary mounting groove 14 are provided on the top of the water inlet base 1. The main mounting groove 13 and the secondary mounting groove 14 are arranged adjacent to each other. The heating tube 21 is fixedly connected to the main mounting groove 13. The secondary tube body 9 is fixedly connected to the secondary mounting groove 14. The secondary mounting groove 14 connects the second water inlet end 12 and the guide cavity 91.

[0054] The auxiliary tube body 9 is mainly made of metal or plastic with good thermal conductivity, such as copper, aluminum, etc. The auxiliary tube body 9 is tightly fitted with the radiator 22;

[0055] After the hot water enters the water inlet base 1, it pushes the unheated cold water in the guide cavity 91 to the top of the auxiliary tube body 9, and then flows from top to bottom to the water passage 15. During this process, the temperature of the radiator 22 is reduced through heat exchange between the auxiliary tube body 9 and the radiator 22, thereby reducing the surface temperature rise between the outer shell and the internal components. At the same time, the water flowing through the auxiliary tube body 9 is preheated, so that the heating efficiency is improved.

[0056] Preferably, a threaded tube 23 is provided inside the heating tube 21, the heating channel 211 is provided between the outer wall of the threaded tube 23 and the inner wall of the heating tube 21, and the direct current channel 231 is provided in the inner cavity of the threaded tube 23;

[0057] A connecting column 131 is provided in the main installation groove 13 , and the spiral tube is plugged into the connecting column 131 . The connecting column 131 connects the first water inlet end 11 and the direct current channel 231 .

[0058] Cold water and hot water flow through the inner cavity and outer side of the threaded pipe 23 respectively. The first water path a and the second water path b are independently provided to avoid the water temperatures of the two water paths affecting each other.

[0059] Preferably, it further includes a water passage 15 , which is connected to the bottom of the main installation groove 13 and the auxiliary installation groove 14 , and connects the guide cavity 91 and the heating channel 211 .

[0060] Reference Figures 5 to 8 The flow direction of the first water path a is: the first water inlet end 11, the connecting column 131, the direct current channel 231 and the water outlet end; the flow direction of the second water path b is: the second water inlet end 12, the water valve 7, the auxiliary installation groove 14, the guide cavity 91, the water passage 15, the main installation groove 13, the heating channel 211 and the second water outlet end 32.

[0061] Preferably, refer to Figure 2 and, Figure 5 and Figure 7 , a water outlet temperature sensor 6 is provided in the second water outlet end 32;

[0062] Alternatively, a water inlet temperature sensor 4 and a water outlet temperature sensor 6 are respectively provided in the water passage 15 and the second water outlet end 32 .

[0063] Preferably, a water flow sensor 5 is provided in the auxiliary mounting groove 14 , and the water flow sensor 5 is used to detect the interruption and flow rate of water flow in the diversion cavity 91 .

[0064] Preferably, a main control circuit board is also included, and the water inlet temperature sensor 4, the water outlet temperature sensor 6 and the water flow sensor 5 are all electrically connected to the main control circuit board. A thyristor is also connected in series between the main control circuit board and the heating tube 21, and the main control circuit board is electrically connected to the motor 8 and the heating tube 21.

[0065] The main control circuit board compares the difference between the output water temperature detected by the outlet water temperature sensor 6 and the user's preset water temperature to determine whether to stop heating or perform compensatory heating. The main control circuit board drives the water valve 7 to control the inlet flow of cold water, hot water, or a mixed flow to help raise or lower the water temperature.

[0066] When it is detected that the output water temperature is lower than the preset water temperature, the heating tube 21 starts heating and increases the power; when it is detected that the output water temperature is greater than or equal to the user's preset water temperature, the heating is stopped, and the first water path a and the second water path b are connected to form a mixed water path, mixing the cold and hot water to achieve the effect of constant water temperature.

[0067] When the temperature control requirement is not high, the water inlet temperature sensor 4 may not be provided, and the water outlet temperature sensor 6 may be used to detect the water temperature, thereby saving costs.

[0068] The main control circuit board controls the opening and closing of the heating tube 21 and adjusts its power based on the water flow interruption signal detected by the water flow sensor 5 and the water heater's on / off status. When the water heater is turned on, it takes time for the hot water output from the hot water outlet to reach the water point. During this time, the heater preheats the cold water in the pipeline, allowing for immediate hot water output when the faucet is turned on, achieving zero cold water functionality. Simultaneously, while heating the water, the flow rate and velocity are used to precisely control the temperature and prevent the heating element 2 from drying out.

[0069] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A heater with dual-inlet and dual-outlet water paths, comprising a heating assembly (2), wherein both ends of the heating assembly (2) are respectively connected to a water inlet base (1) and a water outlet base (3), and characterized in that: The water inlet base (1) is provided with a first water inlet end (11) and a second water inlet end (12), and the water outlet base (3) is provided with a first water outlet end (31) and a second water outlet end (32); The heating component (2) is provided with a heating channel (211) and a direct current channel (231); The heater is provided with a first water path (a) and a second water path (b), wherein the first water path (a) comprises a first water inlet end (11), a direct flow channel (231) and a first water outlet end (31), and the second water path (b) comprises a second water inlet end (12), a heating channel (211) and a second water outlet end (32); The second water channel (b) is provided with a water valve (7), and the water valve (7) can control the second water channel (b) to be connected or disconnected with the first water channel (a).

2. A heater with dual-inlet and dual-outlet water paths according to claim 1, characterized in that: A valve seat (16) is provided in the middle of the water inlet base (1), and the water valve (7) is installed in the valve seat (16). The water valve (7) can control the connection and flow rate between the first water inlet end (11) and the second water path (b), and control the connection and flow rate between the second water inlet end (12) and the second water path (b).

3. A heater with dual-inlet and dual-outlet water paths as claimed in claim 2, characterized in that: The valve seat (16) is provided with a first water inlet hole (161) communicating with the first water inlet end (11) and a second water inlet hole (162) communicating with the second water inlet end (12), and the valve seat (16) is also provided with a water outlet hole (163); The water valve (7) comprises a static valve plate (71), the static valve plate (71) being provided with a first valve hole (711) and a second valve hole (712), the first valve hole (711) being used to connect the first water inlet hole (161) and the water outlet hole (163), the second valve hole (712) being used to connect the second water inlet hole (162) and the water outlet hole (163), the water outlet hole (163) being connected to the heating channel (211), and the water valve (7) being connected to a motor (8).

4. A heater with dual-inlet and dual-outlet water paths as claimed in claim 3, characterized in that: The heating assembly (2) comprises a heating tube (21) and a radiator (22), wherein the heating tube (21) is sleeved in the radiator (22), and a secondary tube body (9) is detachably connected to one side of the radiator (22), wherein a flow guide cavity (91) is provided in the secondary tube body (9); A main mounting groove (13) and a secondary mounting groove (14) are provided on the top of the water inlet base (1); the main mounting groove (13) and the secondary mounting groove (14) are arranged adjacent to each other; the heating tube (21) is fixedly connected to the main mounting groove (13); the secondary tube body (9) is fixedly connected to the secondary mounting groove (14); and the secondary mounting groove (14) communicates with the water outlet hole (163) and the diversion cavity (91).

5. A heater with dual-inlet and dual-outlet water paths as claimed in claim 4, characterized in that: The heating tube (21) is sheathed with a threaded tube (23), the heating channel (211) is provided between the outer wall of the threaded tube (23) and the inner wall of the heating tube (21), and the direct current channel (231) is provided in the inner cavity of the threaded tube (23); A connecting column (131) is provided in the main installation groove (13), the threaded tube (23) is plugged into the connecting column (131), and the connecting column (131) connects the first water inlet end (11) and the direct current channel (231).

6. A heater with dual-inlet and dual-outlet water paths as claimed in claim 4, characterized in that: It also includes a water passage (15), the water passage (15) being connected to the bottom of the main installation groove (13) and the auxiliary installation groove (14), and the water passage (15) being connected to the guide cavity (91) and the heating channel (211).

7. A heater with dual-inlet and dual-outlet water paths as claimed in claim 6, characterized in that: A water outlet temperature sensor (6) is provided in the second water outlet end (32); Alternatively, a water inlet temperature sensor (4) and a water outlet temperature sensor (6) are respectively provided in the water passage (15) and the second water outlet end (32).

8. The heater with dual-inlet and dual-outlet water paths according to claim 4, characterized in that: A water flow sensor (5) is provided in the auxiliary mounting groove (14), and the water flow sensor (5) is used to detect the interruption and flow rate of water flow in the diversion cavity (91).

9. A heater with dual-inlet and dual-outlet water paths as claimed in claims 7 and 8, characterized in that: The main control circuit board is also included. The water inlet temperature sensor (4), the water outlet temperature sensor (6) and the water flow sensor (5) are all electrically connected to the main control circuit board. A thyristor is also connected in series between the main control circuit board and the heating tube (21). The main control circuit board is electrically connected to the motor (8) and the heating tube (21).

10. The heater with dual-inlet and dual-outlet water paths according to claim 1, characterized in that: The heater is connected to an external water heater, and the second water inlet end (12) is connected to the hot water output end of the water heater.

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