Direct-current brushless water pump and water heater

Abstract

The utility model relates to the technical field of heating stove water heaters, in particular to a direct-current brushless water pump and a water heater. The direct-current brushless water pump comprises an integrated pump head, an integrated pump body and an electromagnetic valve. Wherein a water conveying channel and a water flow sensor are arranged in the integrated pump head; a coil winding, a control module and a magnetic rotor are integrated in the integrated pump body, the integrated pump body is installed on the pump head, and the pump body is used for adjusting the water pressure of the water conveying channel, so that a power source is provided for water conveying during operation of the integrated pump body; and the electromagnetic valve is installed on the pump head, and the electromagnetic valve is used for adjusting the flow of water flowing through the water conveying channel so that the water flow in the water conveying channel can be kept within a preset threshold value. The electromagnetic valve is installed on the pump head, the pump head and the water pump are used for conducting flow and pressure dual control on water flow in the water conveying channel at the same time, the stability of the water flow of the water conveying channel is improved, then the stability of water outlet and temperature of the water pump is improved, and the experience feeling of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnace water heaters, in particular to a DC brushless water pump and a water heater. Background Art

[0002] With economic development and improved living standards, the demand for hot water in homes and commercial establishments is increasing. As a key component of hot water supply, water heaters rely on pumps that continuously circulate water, ensuring uniform hot water distribution and consistent water temperature across the heater's various locations.

[0003] In related technologies, the hot water in the hot water chamber is directly connected to a water pump. The water pressure in the hot water chamber is directly supplied by the inlet cold water pressure. When the water pressure in the hot water chamber is sufficient, the hot water flows directly out through the water pump. When the water pressure is insufficient, the water pump is turned on to increase the pressure to reach the specified flow rate. However, when the water pump stops working, the water pressure itself becomes unstable. When the water pressure decreases, the water flow before the water pump is turned on will temporarily decrease, resulting in a decrease in the amount of hot water. When the water pressure increases and exceeds the specified pressure, the water pump will not turn on, resulting in an increase in the amount of hot water. This will cause the water flow in the water heater to fluctuate significantly, affecting normal use. Utility Model Content

[0004] Regarding the related technology, when the water heater pump is shut down, the water pressure will be unstable, resulting in large fluctuations in water flow when it is turned on again, unstable hot water supply, and then causing the water supply of the water heater to be hot and cold, affecting the normal use of users.

[0005] In a first aspect, an embodiment of the present application provides a DC brushless water pump, which includes: an integrated pump head, an integrated pump body and a solenoid valve; wherein,

[0006] Integrated pump head with water delivery channel;

[0007] an integrated pump body, which is mounted on the integrated pump head and is used to provide power for the flow of water in the water channel;

[0008] A solenoid valve is installed on the integrated pump head, and is used to adjust the flow rate of water passing through the water channel so that the water flow rate in the water channel is maintained within a preset threshold.

[0009] In combination with the first aspect, in one embodiment, it further includes: a water flow monitoring device, which is arranged at the water inlet of the water channel, and the water flow monitoring device is used to monitor the water flow parameters of the water channel in real time.

[0010] In combination with the first aspect, in one embodiment, the water flow monitoring device is connected to the solenoid valve signal.

[0011] In combination with the first aspect, in one embodiment, a controller is provided on the solenoid valve, and the controller is connected to the solenoid valve signal. The controller can adjust the water flow in the water channel to a preset threshold according to the water flow parameters monitored by the water flow monitoring device.

[0012] In combination with the first aspect, in one embodiment, the water flow monitoring device includes: a water flow sensor.

[0013] In combination with the first aspect, in one embodiment, two axially symmetrical sides of the integrated pump head are respectively connected to the integrated pump body and the solenoid valve.

[0014] In combination with the first aspect, in one embodiment, a plurality of first screw holes are circumferentially spaced apart on the upper end of the integrated pump head, and the integrated pump head is connected to the solenoid valve via the first screw holes and self-tapping screws.

[0015] In combination with the first aspect, in one embodiment, a plurality of second screw holes are provided at the lower end of the integrated pump head, and the integrated pump head is connected to the integrated pump body via the second screw holes and pan head cross screws.

[0016] In combination with the first aspect, in one embodiment, the water supply channel of the integrated pump head includes an upper water channel and a lower water channel that are connected to each other, the upper water channel is connected to the water inlet of the integrated pump head and the solenoid valve, and the lower water channel is connected to the water outlet of the integrated pump head and the integrated pump body.

[0017] In a second aspect, an embodiment of the present application provides a water heater, comprising: a DC brushless water pump as described in any one of the above items.

[0018] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0019] This application improves the stability of the water flow in the water channel by installing the solenoid valve on the pump head and using the pump head and water pump to simultaneously control the flow and pressure of the water in the water channel, thereby improving the stability of the water flow in the water channel, and then improving the stability of the water output and temperature of the water pump, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 This is a structural diagram of a brushless DC water pump in an embodiment of the present application;

[0022] Figure 2 This is a front view of the brushless DC water pump in the embodiment of the present application;

[0023] Figure 3 This is a schematic structural diagram of the integrated pump head in an embodiment of the present application;

[0024] Figure 4 A partial cross-sectional view of a brushless DC water pump according to an embodiment of the present application;

[0025] Figure 5 This is an overall cross-sectional view of the DC brushless water pump in an embodiment of the present application.

[0026] In the figure: 1. Integrated pump head; 11. Water supply channel; 111. Water supply channel; 112. Sewer; 12. Water inlet; 13. Water outlet; 14. First screw hole; 15. Second screw hole; 2. Integrated pump body; 21. Motor rotor; 22. Ceramic shaft; 23. Coil winding; 24. Pump casing; 3. Solenoid valve; 31. Coil; 32. Spring; 33. Control chamber; 34. Pressurization hole; 35. Air vent; 36. Coil power supply section; 37. Slide; 38. Iron core; 39. Rubber ring; 4. Water flow monitoring device; 5. Self-tapping screw; 6. Pan head cross screw; 7. Small hole. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] Regarding the related technology, when the water heater pump is shut down, the water pressure will be unstable, resulting in large fluctuations in water flow when it is turned on again, unstable hot water supply, and then causing the water supply of the water heater to be hot and cold, affecting the normal use of users.

[0029] First, as Figure 1 and Figure 2 As shown, the present application provides a DC brushless water pump, which includes: an integrated pump head 1, an integrated pump body 2 and a solenoid valve 3; wherein,

[0030] An integrated pump head 1 is provided with a water channel 11; an integrated pump body 2 is installed on the integrated pump head 1, and the integrated pump body 2 is used to adjust the water pressure of the water channel 11; an electromagnetic valve 3 is installed on the integrated pump head 1, and the electromagnetic valve 3 is used to adjust the flow rate of water passing through the water channel 11 so that the water flow rate in the water channel 11 is maintained within a preset threshold.

[0031] It should be noted that in related technologies, the method by which brushless DC water pumps regulate water flow is mainly achieved by the pump's own control unit, that is, the voltage is used to increase or decrease the rotation speed to control the water flow. However, when the water pump stops working, the unstable water pressure may cause large fluctuations in water flow. In other words, when the water pressure decreases, the water flow will temporarily decrease before the pump is turned on, resulting in too little hot water. Alternatively, when the water pressure increases to above the specified pressure, the pump will not turn on, resulting in too much hot water. This causes the water output and temperature of the water heater to be unstable, reducing the user experience.

[0032] It is worth noting that this application improves the stability of the water flow in the water channel by installing the solenoid valve on the pump head and using the pump head and water pump to simultaneously control the flow and pressure of the water in the water channel, thereby improving the stability of the water flow in the water channel, and then improving the stability of the water output and temperature of the water pump, thereby improving the user experience.

[0033] In some preferred embodiments, Figure 4 and Figure 5 As shown, the brushless DC water pump further includes a water flow monitoring device 4, which is provided at the water inlet 12 of the water channel 11, and is used to monitor the water flow parameters of the water channel 11 in real time. Furthermore, the water flow monitoring device 4 is signal-connected to the solenoid valve 3.

[0034] It is understood that the water flow monitoring device 4 is used to monitor the flow rate in the water channel 11 and to provide real-time feedback on the flow rate in the water channel 11. At the same time, the flow rate parameters monitored by the water flow monitoring device 4 are connected to the signal of the solenoid valve 3, and the flow rate parameters monitored by the water flow monitoring device 4 can be fed back to the solenoid valve 3 in a timely manner, facilitating the timely operation of the solenoid valve 3 to adjust the flow rate in the water channel 11.

[0035] Furthermore, the solenoid valve 3 is provided with a controller, which is connected to the signal of the solenoid valve 3. The controller can adjust the water flow in the water channel 11 to within a preset threshold according to the water flow parameters monitored by the water flow monitoring device 4.

[0036] It is worth noting that the controller can accept the flow parameters obtained through feedback, and then adjust the flow in the water channel 11 to within the standard threshold according to the flow parameters.

[0037] Optionally, in order to improve the accuracy of water flow monitoring, the water flow monitoring device 4 includes: a water flow sensor. Further, the water flow sensor includes: a Hall sensor and a vortex tube, which are used to monitor the water flow in real time.

[0038] In some preferred embodiments, Figure 1 and Figure 3As shown, the two axially symmetrical sides of the integrated pump head 1 are respectively connected to the integrated pump body 2 and the solenoid valve 3 .

[0039] It is worth noting that the applicant has discovered through testing that when the integrated pump body 2, the solenoid valve 3, and the integrated pump head 1 are separate components, the gaps between the components during operation can affect the water flow and cause flow instability. The present applicant integrates the integrated pump body 2 and the solenoid valve 3 with the integrated pump head 1, minimizing the gaps between the various functional units and ensuring more stable operation.

[0040] Furthermore, if Figure 3 and Figure 4 As shown, the water supply channel 11 of the integrated pump head 1 includes an upper water channel 111 and a lower water channel 112 that are connected to each other. The upper water channel 111 is connected to the water inlet 12 of the integrated pump head 1 and the solenoid valve 3, and the lower water channel 112 is connected to the water outlet 13 of the integrated pump head 1 and the integrated pump body 2.

[0041] It is worth noting that in the above-mentioned real-time method, the two axially symmetrical sides of the integrated pump head 1 are respectively connected to the integrated pump body 2 and the solenoid valve 3, so that the upper water channel 111 and the lower water channel 112 of the water supply channel 11 are respectively connected to the upper and lower solenoid valves 3 and the pump body, thereby minimizing the gap between the components.

[0042] In some preferred embodiments, a plurality of first screw holes 14 are circumferentially spaced apart on the upper end of the integrated pump head 1 , and the integrated pump head 1 is connected to the solenoid valve 3 via the first screw holes 14 and the self-tapping screws 5 .

[0043] Specifically, a plurality of second screw holes 15 are provided at the lower end of the integrated pump head 1 , and the integrated pump head 1 is connected to the integrated pump body 2 via the second screw holes 15 and pan head cross screws 6 .

[0044] It can be understood that the detachable connection through bolts makes it easier for operators to assemble and carry the device.

[0045] In some optional embodiments, such as Figure 5 As shown, the integrated pump body 2 of this application utilizes an electromagnetic pump based on magnetic coupling. Its operating principle includes the following: The impeller of the integrated pump body 2 rotates under the drive of the motor, sucking in water at the outlet and pushing out high-pressure fluid. The integrated pump body 2 controls the water output through the motor, adjusting the pump flow rate and water supply temperature.

[0046] Furthermore, an isolation core cavity is provided in the pump housing 24 to isolate water from the coil winding 23 of the motor, thereby preventing water from entering the electronic components.

[0047] In a second aspect, the present application provides a water heater, which includes: a DC brushless water pump, which includes: an integrated pump head 1, an integrated pump body 2 and a solenoid valve 3; wherein,

[0048] An integrated pump head 1 is provided with a water channel 11; an integrated pump body 2 is installed on the integrated pump head 1, and the integrated pump body 2 is used to adjust the water pressure of the water channel 11; an electromagnetic valve 3 is installed on the integrated pump head 1, and the electromagnetic valve 3 is used to adjust the flow rate of water passing through the water channel 11 so that the water flow rate in the water channel 11 is maintained within a preset threshold.

[0049] It should be noted that in related technologies, the method by which brushless DC water pumps regulate water flow is mainly achieved by the pump's own control unit, that is, the voltage is used to increase or decrease the rotation speed to control the water flow. However, when the water pump stops working, the unstable water pressure may cause large fluctuations in water flow. In other words, when the water pressure decreases, the water flow will temporarily decrease before the pump is turned on, resulting in too little hot water. Alternatively, when the water pressure increases to above the specified pressure, the pump will not turn on, resulting in too much hot water. This causes the water output and temperature of the water heater to be unstable, reducing the user experience.

[0050] It is worth noting that this application improves the stability of the water flow in the water channel by installing the solenoid valve on the pump head and using the pump head and water pump to simultaneously control the flow and pressure of the water in the water channel, thereby improving the stability of the water flow in the water channel, and then improving the stability of the water output and temperature of the water pump, thereby improving the user experience.

[0051] In some preferred embodiments, Figure 4 As shown, the brushless DC water pump further includes a water flow monitoring device 4, which is provided at the water inlet 12 of the water channel 11, and is used to monitor the water flow parameters of the water channel 11 in real time. Furthermore, the water flow monitoring device 4 is signal-connected to the solenoid valve 3.

[0052] It is understood that the water flow monitoring device 4 is used to monitor the flow rate in the water channel 11 and to provide real-time feedback on the flow rate in the water channel 11. At the same time, the flow rate parameters monitored by the water flow monitoring device 4 are connected to the signal of the solenoid valve 3, and the flow rate parameters monitored by the water flow monitoring device 4 can be fed back to the solenoid valve 3 in a timely manner, facilitating the timely operation of the solenoid valve 3 to adjust the flow rate in the water channel 11.

[0053] Furthermore, the solenoid valve 3 is provided with a controller, which is connected to the signal of the solenoid valve 3. The controller can adjust the water flow in the water channel 11 to within a preset threshold according to the water flow parameters monitored by the water flow monitoring device 4.

[0054] It is worth noting that the controller can accept the flow parameters obtained through feedback, and then adjust the flow in the water channel 11 to within the standard threshold according to the flow parameters.

[0055] Optionally, in order to improve the accuracy of water flow monitoring, the water flow monitoring device 4 includes: a water flow sensor.

[0056] Optionally, to improve the accuracy of water flow monitoring, the water flow monitoring device 4 includes a water flow sensor. Furthermore, the water flow sensor includes a Hall sensor and a vortex tube, which cooperate to monitor the water flow in real time.

[0057] In some preferred embodiments, Figure 1 and Figure 3 As shown, the two axially symmetrical sides of the integrated pump head 1 are respectively connected to the integrated pump body 2 and the solenoid valve 3 .

[0058] It is worth noting that the applicant has discovered through testing that when the integrated pump body 2, the solenoid valve 3, and the integrated pump head 1 are separate components, the gaps between the components during operation can affect the water flow and cause flow instability. The present applicant integrates the integrated pump body 2 and the solenoid valve 3 with the integrated pump head 1, minimizing the gaps between the various functional units and ensuring more stable operation.

[0059] Furthermore, if Figure 3 and Figure 4 As shown, the water supply channel 11 of the integrated pump head 1 includes an upper water channel 111 and a lower water channel 112 that are connected to each other. The upper water channel 111 is connected to the water inlet 12 of the integrated pump head 1 and the solenoid valve 3, and the lower water channel 112 is connected to the water outlet 13 of the integrated pump head 1 and the integrated pump body 2.

[0060] It is worth noting that in the above-mentioned real-time method, the two axially symmetrical sides of the integrated pump head 1 are respectively connected to the integrated pump body 2 and the solenoid valve 3, so that the upper water channel 111 and the lower water channel 112 of the water supply channel 11 are respectively connected to the upper and lower solenoid valves 3 and the pump body, thereby minimizing the gap between the components.

[0061] In some preferred embodiments, a plurality of first screw holes 14 are circumferentially spaced apart on the upper end of the integrated pump head 1 , and the integrated pump head 1 is connected to the solenoid valve 3 via the first screw holes 14 and the self-tapping screws 5 .

[0062] Specifically, a plurality of second screw holes 15 are provided at the lower end of the integrated pump head 1 , and the integrated pump head 1 is connected to the integrated pump body 2 via the second screw holes 15 and pan head cross screws 6 .

[0063] It can be understood that the detachable connection through bolts makes it easier for operators to assemble and carry the device.

[0064] In some optional embodiments, Figure 5 As shown, the integrated pump body 2 of this application utilizes an electromagnetic pump based on magnetic coupling. Its operating principle includes the following: The impeller of the integrated pump body 2 rotates under the drive of the motor, sucking in water at the outlet and pushing out high-pressure fluid. The integrated pump body 2 controls the water output through the motor, adjusting the pump flow rate and water supply temperature.

[0065] Furthermore, an isolation core cavity is provided in the pump housing 24 to isolate water from the coil winding 23 of the motor, thereby preventing water from entering the electronic components.

[0066] To sum up, this application improves the stability of the water flow in the water channel by installing the solenoid valve on the pump head and using the pump head and water pump to simultaneously control the flow and pressure of the water in the water channel, thereby improving the stability of the water flow in the water channel, and then improving the water output and temperature stability of the water pump, thereby improving the user experience.

[0067] In the description of this application, it should be noted that the terms "upper" and "lower" 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 this application 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, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0068] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0069] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A DC brushless water pump, characterized in that: include: An integrated pump head (1) having a water delivery channel (11) therein; an integrated pump body (2) mounted on the integrated pump head (1), and the integrated pump body (2) is used to provide power for the flow of water in the water channel (11); A solenoid valve (3) is mounted on the integrated pump head (1), and the solenoid valve (3) is used to adjust the flow rate of water passing through the water channel (11) so that the water flow rate in the water channel (11) is maintained within a preset threshold value.

2. The DC brushless water pump according to claim 1, characterized in that: Also includes: A water flow monitoring device (4) is provided at the water inlet (12) of the water channel (11), and the water flow monitoring device (4) is used to monitor the water flow parameters of the water channel (11) in real time.

3. The brushless DC water pump according to claim 2, wherein: The water flow monitoring device (4) is connected to the electromagnetic valve (3) signal.

4. The brushless DC water pump according to claim 3, wherein: The solenoid valve (3) is provided with a controller, the controller being connected to the solenoid valve (3) signal, and the controller can adjust the water flow in the water channel (11) to within a preset threshold value according to the water flow parameter monitored by the water flow monitoring device (4).

5. The DC brushless water pump according to claim 2, characterized in that: The water flow monitoring device (4) comprises a water flow sensor.

6. The DC brushless water pump according to claim 1, wherein: The axially symmetrical two sides of the integrated pump head (1) are respectively connected to the integrated pump body (2) and the solenoid valve (3).

7. The brushless DC water pump according to claim 6, wherein: A plurality of first screw holes (14) are provided at circumferential intervals on the upper end of the integrated pump head (1), and the integrated pump head (1) is connected to the solenoid valve (3) via the first screw holes (14) and self-tapping screws (5).

8. The brushless DC water pump according to claim 6, wherein: The lower end of the integrated pump head (1) is provided with a plurality of second screw holes (15), and the integrated pump head (1) is connected to the integrated pump body (2) via the second screw holes (15) and pan head cross screws (6).

9. The DC brushless water pump according to claim 1, wherein: The water delivery channel (11) of the integrated pump head (1) comprises an upper water channel (111) and a lower water channel (112) that are in communication with each other, the upper water channel (111) being in communication with the water inlet (12) of the integrated pump head (1) and the solenoid valve (3), and the lower water channel (112) being in communication with the water outlet (13) of the integrated pump head (1) and the integrated pump body (2).

10. A water heater, characterized in that: include: A brushless DC water pump as claimed in any one of claims 1 to 9.

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