Water heater and constant temperature water tank

Abstract

The present application relates to a water heater and a constant temperature water tank thereof. A constant temperature water tank comprises: a tank body having a cavity; a support baffle disposed in the cavity, the support baffle dividing the cavity into a first chamber and a second chamber stacked along a first direction; a water guide cylinder disposed on the support baffle, the water guide cylinder being connected to the first chamber via a first water inlet, and the water guide cylinder being connected to the second chamber via a first water outlet; and a flow regulator mounted on the second end, comprising a flow regulating cylinder and a driving member, the side wall of the flow regulating cylinder being provided with a second water outlet corresponding to the first water outlet; the driving member being disposed in the flow regulating cylinder and being used to drive the flow regulating cylinder to rotate, so as to change the connecting area between the second water outlet and the corresponding first water outlet. Utilizing this constant temperature water tank, the water temperature flowing out of the constant temperature water tank can be made constant, water temperature fluctuations can be reduced, and the stability of the outlet water temperature can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of constant temperature water tanks, and in particular to a water heater and a constant temperature water tank thereof. Background Art

[0002] During use, the water heater often experiences alternating temperatures. To this end, the conventional water heater further comprises a constant temperature water tank connected to the outlet pipe of the heat exchanger of the water heater, so as to stabilize the temperature of the water flowing out of the outlet pipe.

[0003] However, when the water pressure is too high or the water pressure fluctuates unstably at a high level, the existing constant temperature water tank has a poor buffering effect and cannot play a good buffering role, and the water outlet temperature and water outlet flow are not stable enough. Summary of the Invention

[0004] Based on this, it is necessary to provide a water heater and a constant temperature water tank thereof to address the problem that the existing constant temperature water tank has poor buffering effect when facing some situations where the water pressure is too high or the water pressure fluctuates unstably at a high level.

[0005] According to one aspect of the present application, a constant temperature water tank is provided, comprising:

[0006] a tank body having a cavity;

[0007] a supporting partition, disposed in the cavity, the supporting partition dividing the cavity into a first chamber and a second chamber stacked along a first direction;

[0008] a supporting partition, disposed in the cavity, the supporting partition dividing the cavity into a first chamber and a second chamber stacked along a first direction;

[0009] a water guide cylinder disposed on the supporting partition, having a first end extending into the first chamber and a second end extending into the second chamber; a first water inlet hole and a first water outlet hole are provided on the water guide cylinder; an inner cavity of the water guide cylinder is connected to the first chamber via the first water inlet hole, and an inner cavity of the water guide cylinder is connected to the second chamber via the first water outlet hole; and

[0010] a flow regulator mounted on the second end, comprising a flow regulating cylinder and a driving member, wherein the flow regulating cylinder is rotatably disposed within the water guide cylinder and engages with the inner wall of the water guide cylinder; the flow regulating cylinder has an opening communicating with the water guide cylinder and facing the first end; and a second water outlet hole corresponding to the first water outlet hole is provided on a side wall of the flow regulating cylinder;

[0011] The driving member is disposed in the flow regulating cylinder and is used to drive the flow regulating cylinder to rotate so as to change the communication area between the second water outlet and the corresponding first water outlet.

[0012] In one embodiment, the flow regulator further includes a fixing bracket mounted on the second end of the water guide cylinder, and an elastic reset member;

[0013] One end of the elastic return member is connected to the flow regulating cylinder, and the other end of the elastic return member is connected to the fixed bracket;

[0014] The driving member includes an impeller fixedly connected to the flow regulating cylinder and rotatably connected to the fixed bracket. The impeller is configured to rotate with the flow of the fluid to drive the flow regulating cylinder to rotate. In one embodiment, the second end has a mounting opening that communicates with the inner cavity of the water guide cylinder. The fixed bracket includes a mounting seat provided at the second end of the water guide cylinder, and a mounting support rod fixedly connected to the mounting seat and located within the flow regulating cylinder.

[0015] The mounting seat is connected to the second end and can cover the mounting opening;

[0016] The impeller is rotatably connected to the mounting support rod;

[0017] The mounting support rod is provided with a first fixing rod extending radially along the mounting support rod;

[0018] One end of the elastic return member is connected to the first fixing rod, and the other end of the elastic return member is connected to the flow regulating cylinder. In one embodiment, a second fixing rod arranged along the axial direction of the flow regulating cylinder is fixed to the flow regulating cylinder;

[0019] The mounting support rod is provided with a blocking rod extending radially along the mounting support rod;

[0020] When the flow regulating cylinder rotates to a predetermined angle, the second fixing rod and the blocking rod contact and limit each other. In one embodiment, the elastic reset member includes a tension spring.

[0021] In one embodiment, the top and bottom ends of the tank body are respectively provided with a water inlet joint and a water outlet joint;

[0022] The water outlet connector extends into the tank body along the first direction, and one end of the water outlet connector extending into the tank body is located on one side of the peripheral wall of the water guide cylinder. In one embodiment, a filter cover is provided in the first chamber, and a second water inlet hole is provided on the filter cover;

[0023] The filter cover divides the first chamber into a water inlet chamber and a filter chamber, and the first end is located in the filter chamber.

[0024] In one embodiment, the filter housing includes a filter cartridge and a screw cap;

[0025] The bottom of the filter cartridge is fixedly connected to the supporting partition, and the top of the filter cartridge is open;

[0026] The rotary cover is detachably connected to the filter cartridge and is used to cover the opening. The second water inlet is provided on the filter cartridge.

[0027] In one embodiment, one of the rotary cover and the side wall of the filter cartridge is provided with a rotary buckle, and the other is provided with a clamping column that cooperates with the rotary buckle.

[0028] According to another aspect of the present application, there is provided a water heater, comprising:

[0029] a heat exchanger having a water outlet pipe; and

[0030] The above-mentioned constant temperature water tank is connected to the water outlet pipe, and the inner cavity of the water outlet pipe is connected to the first chamber.

[0031] In the above-mentioned water heater and its constant temperature water tank, the water entering the cavity of the tank body can first enter the first chamber, and a part of the water is restricted by the outer wall of the water guide cylinder in the first chamber, which can slow down the speed of the water flow, so that the water entering the first chamber can be preliminarily mixed, and the other part of the water flows into the water guide cylinder through the first water inlet. In this process, due to the reduction of the flow area of the water flow, this part of the water can be fully mixed in the process of flowing into the water guide cylinder, and then buffered in the water guide cylinder. The water in the water guide cylinder can flow into the flow regulating cylinder through the opening, and then flow into the second chamber through the second water outlet and the corresponding first water outlet. This part of the water will be fully mixed again in the process of flowing out of the flow regulating cylinder and the water guide cylinder, which can further make the water temperature of this part of the water tend to be constant; in the face of excessive water pressure or water pressure fluctuations at a high level In the case of unstable water flow, the flow regulating cylinder can be driven to rotate a certain angle by actively or passively controlling the driving member, so that the second water outlet and the corresponding first water outlet are not aligned with each other, and the communication area between the second water outlet and the first water outlet is further reduced, which can reduce the flow of water flowing into the second chamber through the second water outlet and the corresponding first water outlet, and increase the residence time of this part of water in the flow regulating cylinder, which is more conducive to making the water temperature of this part of water tend to be constant, reducing water temperature fluctuations and improving the stability of the outlet water temperature; after the external water pressure tends to stabilize, the driving member can be actively or passively controlled to drive the flow regulating cylinder to rotate in the opposite direction, increase the overlapping area of the second water outlet and the first water outlet, and speed up the passage efficiency of water without affecting the water temperature and the stability of water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic structural diagram of a constant temperature water tank in an embodiment of the present application is shown;

[0033] Figure 2Schematic diagram of the explosion of a constant temperature water tank in one embodiment of the present application is shown;

[0034] Figure 3 A cross-sectional schematic diagram of a constant temperature water tank in one embodiment of the present application is shown;

[0035] Figure 4 A cross-sectional schematic diagram of a support baffle and a water guide cylinder in an embodiment of the present application is shown;

[0036] Figure 5 A schematic structural diagram of a flow regulator in an embodiment of the present application is shown;

[0037] Figure 6 A cross-sectional schematic diagram of a flow regulating cylinder in an embodiment of the present application is shown;

[0038] Figure 7 A schematic structural diagram of a rotary cover in an embodiment of the present application is shown;

[0039] Figure 8 A schematic structural diagram of a water inlet connector, a top cover, an upper shell, and a first sealing sheet in one embodiment of the present application is shown;

[0040] Figure 9 Shown Figure 3 An enlarged schematic diagram of point A.

[0041] In the figure: 10, constant temperature water tank; 110, tank body; 1101, cavity; 1102, water inlet connector; 1103, first chamber; 1104, second chamber; 1105, filter chamber; 1106, water outlet connector; 1107, through hole; 111, top cover; 1111, first mounting hole; 112, upper shell; 113, middle shell; 1131, support step; 114, lower shell; 115, first sealing plate; 116, second sealing plate; 117, pressure ring; 120, support partition; 121, filter cartridge; 1211, second water inlet; 1212, The clamping column; 122, the screw cap; 1221, the second clamping slot; 130, the water guide cylinder; 1301, the first water inlet hole; 1302, the first water outlet hole; 131, the raised portion; 140, the flow regulator; 1401, the opening; 1402, the closed end; 141, the flow regulating cylinder; 1411, the second water outlet hole; 1412, the cylinder body; 1413, the impeller; 1414, the central support rod; 142, the mounting seat; 1421, the first clamping slot; 143, the tension spring; 144, the mounting support rod; 145, the first fixing rod; 146, the second fixing rod; 147, the blocking rod. DETAILED DESCRIPTION

[0042] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0043] 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 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 should not be understood as a limitation on the present application.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0045] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0046] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it 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. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0047] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0048] Figure 1 1 shows a schematic structural diagram of a constant temperature water tank 10 in an embodiment of the present application. Figure 2 A schematic diagram of an explosion of a constant temperature water tank 10 in an embodiment of the present application is shown.

[0049] See Figure 1 and Figure 2 The constant temperature water tank 10 provided in one embodiment of the present application includes a tank body 110 , a supporting baffle 120 , a water guide tube 130 disposed on the supporting baffle 120 , and a flow regulator 140 .

[0050] The tank body 110 has a cavity 1101, and the tank body 110 is provided with a water inlet joint 1102 connected to the cavity 1101. The water inlet joint 1102 can be connected to the water outlet pipe of the heat exchanger of the water heater. The water heated by the water heater can flow out from the water outlet pipe of the heat exchanger and enter the cavity 1101 of the tank body 110 through the water inlet joint 1102, so as to be fully mixed in the cavity 1101 of the tank body 110 to achieve the purpose of constant temperature.

[0051] Please refer again Figure 2 , and refer to Figure 3 and Figure 4The supporting baffle 120 is arranged in the cavity 1101, and the supporting baffle 120 divides the cavity 1101 into a first chamber 1103 and a second chamber 1104 stacked along a first direction. The water guide cylinder 130 is arranged on the supporting baffle 120, and the water guide cylinder 130 has a first end extending into the first chamber 1103 and a second end extending into the second chamber 1104, wherein a first water inlet hole 1301 and a first water outlet hole 1302 are provided on the water guide cylinder 130, and the inner cavity of the water guide cylinder 130 is connected with the first chamber 1103 by means of the first water inlet hole 1301, and the inner cavity of the water guide cylinder 130 is connected with the second chamber 1104 by means of the first water outlet hole 1302. Then, the water entering the cavity 1101 of the tank body 110 can first enter the first chamber 1103. A portion of the water is restricted by the outer wall of the water guide tube 130 in the first chamber 1103, which can slow down the speed of the water flow and allow the water entering the first chamber 1103 to be initially mixed. The other portion of the water flows into the water guide tube 130 through the first water inlet hole 1301. In this process, due to the reduction in the flow area of the water flow, this portion of water can be fully mixed in the process of flowing into the water guide tube 130, and then buffered in the water guide tube 130, so that the water temperature of this portion of water can be made uniform.

[0052] Please refer again Figure 3 , and refer to Figure 5 and Figure 6 The flow regulator 140 is installed at the second end of the water guide cylinder 130. The flow regulator 140 includes a flow regulating cylinder 141. The flow regulating cylinder 141 is rotatably arranged in the water guide cylinder 130 and cooperates with the inner wall of the water guide cylinder 130, so that the flow regulating cylinder 141 can rotate relative to the water guide cylinder 130. The flow regulating cylinder 141 has an opening 1401 connected to the water guide cylinder 130 and facing the first end, and a closed end 1402 relative to the opening 1401. Therefore, the water flowing into the water guide cylinder 130 basically flows into the flow regulating cylinder 141 from the opening 1401, and the water flowing between the water guide cylinder 130 and the flow regulating cylinder 141 can be ignored.

[0053] The side wall of the flow regulating cylinder 141 is provided with a second water outlet hole 1411 corresponding to the first water outlet hole 1302. It can be understood that the second water outlet hole 1411 corresponds to the first water outlet hole 1302 one by one, and the center lines of the second water outlet hole 1411 and the corresponding first water outlet hole 1302 coincide with each other. The water in the water guide cylinder 130 can flow into the flow regulating cylinder 141 through the opening 1401, and then flow into the second chamber 1104 through the second water outlet hole 1411 and the corresponding first water outlet hole 1302. This part of water will be fully mixed again in the process of flowing out of the flow regulating cylinder 141 and the water guide cylinder 130, and the water temperature of this part of water can be further made constant. Therefore, by using the constant temperature water tank 10, the water in the constant temperature water tank 10 can be fully mixed and then flow out of the constant temperature water tank 10, and the constant temperature effect is better.

[0054] The flow regulator 140 also includes a driving member, which is arranged in the flow regulating cylinder 141. The driving member is used to drive the flow regulating cylinder 141 to rotate so as to change the communication area between the second water outlet 1411 and the corresponding first water outlet 1302. The driving member can drive the flow regulating cylinder 141 to rotate, so that the second water outlet 1411 and the corresponding first water outlet 1302 are not aligned with each other, that is, the center lines of the second water outlet 1411 and the corresponding first water outlet 1302 do not overlap with each other, thereby changing the communication area between the second water outlet 1411 and the corresponding first water outlet 1302. In the case of excessively high water pressure or water pressure fluctuations at a high level and unstable water flow, the flow regulating cylinder 141 can be driven to rotate to a certain angle by actively or passively controlling the driving member, thereby reducing the area of communication between the second water outlet 1411 and the first water outlet 1302, reducing the flow of water flowing into the second chamber 1104 through the second water outlet 1411 and the corresponding first water outlet 1302, and increasing the residence time of this water in the flow regulating cylinder 141, which is more conducive to making the water temperature of this water tend to be constant, thereby reducing water temperature fluctuations and improving the stability of the outlet water temperature. After the external water pressure tends to be stable, the flow regulating cylinder can be driven to rotate in the opposite direction by actively or passively controlling the driving member, thereby increasing the area of communication between the second water outlet 1411 and the first water outlet 1302, and accelerating the efficiency of water flow without affecting the water temperature and the stability of the water flow.

[0055] Optionally, the first direction is parallel to the center line of the tank body 110. Usually, the constant temperature water tank 10 is installed according to its gravity direction. Figure 3 In the embodiment shown, the first direction is the up and down direction, that is, the water entering the cavity 1101 of the tank body 110 through the water inlet joint 1102 can flow downward under the action of gravity, and will first flow into the first chamber 1103 for sufficient mixing, and then enter the water guide cylinder 130 through the first water inlet hole 1301, and then flow downward into the flow regulating cylinder 141, and finally flow into the second chamber 1104 through the second water outlet hole 1411 and the corresponding first water outlet hole 1302. In this process, this part of water changes its flow direction many times in the constant temperature water tank 10 and is fully mixed. The constant temperature water tank 10 can be used to obtain constant temperature water to improve the user's bathing comfort.

[0056] It should be noted that the center lines of the second water outlet 1411 and the corresponding first water outlet 1302 coincide with each other and are both perpendicular to the preset axis.

[0057] Optionally, refer again to Figure 4 The water guide tube 130 and the supporting partition 120 are integrally formed, which is convenient for processing and manufacturing.

[0058] Optionally, refer again to Figure 3In the first direction, compared with the flow regulating cylinder 141, the first water inlet hole 1301 is closer to the water inlet joint 1102, that is, the flow regulating cylinder 141 is located in the downstream direction of the first water inlet hole 1301, so as to better utilize the water flow in the water guide cylinder 130 to impact the driving member in the flow regulating cylinder 141, better drive the flow regulating cylinder 141 to rotate, and also help to reduce water temperature fluctuations and improve the stability of the outlet water temperature.

[0059] Optionally, refer again to Figure 3 and Figure 4 There are multiple first water inlet holes 1301 and multiple second water outlet holes 1411, and the two are arranged in a one-to-one correspondence. The multiple first water inlet holes 1301 are arranged and distributed along the circumference of the water guide cylinder 130 to form a first water inlet hole group, and the multiple first water inlet hole groups are distributed at intervals along the axial direction of the water guide cylinder 130, so that the water in the first chamber 1103 flows into the water guide cylinder 130 more evenly, thereby improving the mixing effect of this part of the water, which is more conducive to improving the constant temperature effect of the constant temperature water tank 10.

[0060] In some embodiments, optionally, please refer again to Figure 5 The flow regulator 140 further includes a fixed bracket mounted on the second end of the water guide cylinder 130, and an elastic return member, one end of which is connected to the flow regulating cylinder 141, and the other end of which is connected to the fixed bracket. The driving member includes an impeller 1413 fixedly connected to the flow regulating cylinder 141 and rotatably connected to the fixed bracket. The impeller 1413 is configured to rotate with the flow of the fluid, thereby driving the flow regulating cylinder 141 to rotate. The impeller 1413 rotates with the flow of the fluid. The greater the water flow rate and the greater the water pressure, the greater the rotational force applied to the flow regulating cylinder 141, and the greater the deformation of the elastic reset member. Therefore, the force to overcome the elastic reset member also becomes greater, which results in the greater the water pressure, the more difficult it is for the flow regulating cylinder 141 to rotate, so that the flow area of the second water outlet 1411 and the corresponding first water outlet 1302 can automatically maintain a suitable range under different water pressures, and can automatically reset when the water pressure is low, realizing the function of automatically adapting to the fluid pressure, thereby improving the effect of buffering the water flow. Therefore, when facing excessive water pressure or unstable water pressure fluctuations at high levels, the flow regulator 140 of this embodiment has a better effect of buffering water pressure. In addition, the provision of the elastic reset member in this embodiment can enable the flow regulating cylinder 141 to reset in time when the water pressure in the tank body 110 does not reach the preset pressure, ensuring the long-term and stable use of the flow regulator 140.

[0061] Optionally, the central axis of the impeller 1413 is parallel to the center line of the tank body 110 so that the impeller 1413 can be better driven to rotate under the action of the gravity of the water flow in the tank body 110, thereby better driving the flow regulating cylinder 141 to rotate around the central axis of the impeller 1413.

[0062] In some embodiments, optionally, the second end has a mounting port connected to the inner cavity of the water guide cylinder 130, and the fixed bracket includes a mounting seat 142 arranged at the second end of the water guide cylinder 130, and a mounting support rod 144 fixedly connected to the mounting seat 142 and located in the flow regulating cylinder 141, wherein the mounting seat 142 is connected to the second end and can cover the mounting port. Specifically, the second end is inserted and fixed to the mounting seat 142, and the covering area of the mounting seat 142 is greater than or equal to the area of the mounting port to achieve covering the mounting port; the impeller 1413 is rotatably connected to the mounting support rod 144, and the flow regulator 140 is installed at the second end of the water guide cylinder 130 with the aid of the mounting seat 142. At the same time, the impeller 1413 is rotatably connected to the mounting support rod 144 located in the flow regulating cylinder 141, so that the impeller 1413 and the flow regulating cylinder 141 can rotate relative to the mounting seat 142, and the installation stability of the impeller 1413 can be improved.

[0063] A first fixing rod 145 extending radially along the mounting support rod 144 is provided on the mounting support rod 144 . One end of the elastic reset member is connected to the first fixing rod 145 , and the other end of the elastic reset member is connected to the flow regulating cylinder 141 .

[0064] Optionally, refer again to Figure 6 The flow regulating cylinder 141 includes a cylinder body 1412, a second water outlet 1411 is provided in the cylinder body 1412, and the central axis of the impeller 1413 is parallel to the center line of the cylinder body 1412. A central support rod 1414 is provided at the center of the impeller 1413 and is coaxially located within the cylinder body 1412. The central support rod 1414 is provided with an embedding hole that is clearance-matched with the mounting support rod 144. The end of the mounting support rod 144 away from the mounting seat 142 can be inserted into the embedding hole and rotatably engaged with the central support rod 1414, so that the impeller 1413 is rotatably connected to the mounting support rod 144. On the one hand, the impeller 1413 and the central support rod 1414 can rotate relative to the mounting support rod 144 without affecting the rotation of the flow regulating cylinder 141. On the other hand, the mounting support rod 144 can support the central support rod 1414, the impeller 1413 and the flow regulating cylinder 141, thereby ensuring the balance and stability of the flow regulating cylinder 141.

[0065] Optionally, refer again to Figure 6 The impeller 1413 is integrally connected to the cylinder 1412 and the central support rod 1414 respectively, and the mounting support rod 144 is coaxially arranged with the cylinder 1412 to ensure that the flow regulating cylinder 141 better responds to the fluid pressure of the fluid in the tank body 110 and rotates around the center line of the cylinder 1412.

[0066] In some embodiments, optionally, please refer again to Figure 5A second fixing rod 146 arranged along the axial direction of the flow regulating cylinder 141 is fixed to the flow regulating cylinder 141, and a blocking rod 147 extending radially along the mounting support rod 144 is provided on the mounting support rod 144. When the impeller 1413 rotates with the flow of water in the constant temperature water tank 10, the flow regulating cylinder 141 will also rotate, driving the second fixing rod 146 to rotate. When the flow regulating cylinder 141 rotates to a predetermined angle, the second fixing rod 146 and the blocking rod 147 contact and limit each other, thereby preventing the second water outlet hole 1411 and the corresponding first water outlet hole 1302 from completely not overlapping, and preventing the second water outlet hole 1411 and the corresponding first water outlet hole 1302 from being disconnected from each other and affecting the water outlet of the constant temperature water tank 10. Therefore, the blocking rod 147 can be used to limit the maximum rotation angle of the flow regulating cylinder 141.

[0067] In some embodiments, the elastic return member optionally includes a tension spring 143, that is, the two ends of the tension spring 143 are respectively connected to the first fixing rod 145 and the flow regulating tube 141. Specifically, the two ends of the tension spring 143 are respectively connected to the first fixing rod 145 and the second fixing rod 146 on the flow regulating tube 141.

[0068] It is understandable that in other embodiments, the driving member can also be configured as a motor, which is fixed in the water guide cylinder 130, and the output shaft of the motor is connected to the flow regulating cylinder 141 to drive the flow regulating cylinder 141 to rotate, thereby adjusting the connection area between the second water outlet 1411 and the corresponding first water outlet 1302. Specifically, the motor can be set as a convenient and controllable servo motor. When the water pressure is large or the water pressure fluctuates at a high level and the water flow is unstable, the connection area between the second water outlet 1411 and the corresponding first water outlet 1302 can be reduced by actively controlling the rotation of the motor to improve the stability of the water flow. Of course, a water pressure sensor can also be set upstream of the constant temperature water tank 10 to sense the upstream water flow pressure. The water pressure sensor can be electrically connected to the servo motor through the controller. The water pressure sensor transmits the water flow pressure to the controller. The controller judges the water flow pressure to control the rotation of the servo motor to adjust the connection area between the second water outlet 1411 and the corresponding first water outlet 1302, so as to realize automatic adjustment of the water outlet efficiency of the first water outlet 1302 according to the water flow pressure, so that the constant temperature water tank 10 can maintain a better buffering effect at different water flow pressures.

[0069] Optionally, in some of the above embodiments, the mounting support rod 144 is provided with two first fixing rods 145 extending radially along the mounting support rod 144 and symmetrically distributed on both sides of the circumference of the mounting support rod 144, and the flow regulating cylinder 141 is provided with two second fixing rods 146, the second fixing rods 146 and the corresponding first fixing rods 145 are arranged opposite to each other along the first direction, and the elastic reset member includes two tension springs 143, the two ends of the tension spring 143 are respectively connected to the corresponding first fixing rod 145 and the corresponding second fixing rod 146, because the first fixing rods 145 are symmetrically distributed on the circumference of the mounting support rod 144. On both sides, the first fixed rod 145 and the corresponding second fixed rod 146 are relatively arranged along the first direction, so that the tension spring 143 can be arranged along the first direction, and the two tension springs 143 can be symmetrically distributed on both sides of the circumference of the mounting support rod 144. Combined with the coaxial arrangement of the mounting support rod 144 and the cylinder 1412, the elastic restoring force formed by the two tension springs 143 can be symmetrically distributed during the rotation of the flow regulating cylinder 141 around the center line of the cylinder 1412 in response to the fluid pressure in the tank body 110, which is more conducive to the reset of the flow regulating cylinder 141 and also conducive to maintaining the balance of the flow regulating cylinder 141.

[0070] Optionally, refer again to Figure 5 In some of the above embodiments, the mounting support rod 144 is provided with two blocking rods 147 extending radially along the mounting support rod 144 and symmetrically distributed on both sides of the circumference of the mounting support rod 144. The blocking rod 147 is located on one side of the circumference of the adjacent tension spring 143 and is set at an angle to the first fixed rod 145. When the flow regulating cylinder 141 rotates a predetermined angle, the two second fixed rods 146 contact the two blocking rods 147 one by one, so as to utilize the two blocking rods 147 to better limit the maximum rotation angle of the flow regulating cylinder 141.

[0071] It should be noted that the blocking rod 147 is located on one circumferential side of the adjacent tension spring 143 and is arranged at an angle to the first fixing rod 145 . It can be understood that the blocking rod 147 and the first fixing rod 145 are arranged axially spaced apart along the mounting support rod 144 .

[0072] Specifically, the deflection angle of the blocking rod 147 relative to the first fixing rod 145 can be changed to adjust the maximum rotation angle of the flow regulating cylinder 141 and further adjust the minimum communication area between the second water outlet 1411 and the corresponding first water outlet 1302 .

[0073] Optionally, in some of the above embodiments, the first fixing rod 145 and the blocking rod 147 are integrally formed with the mounting support rod 144 , and the mounting support rod 144 is integrally formed with the mounting seat 142 , which can improve the structural strength and stability of the flow regulator 140 .

[0074] Optionally, refer again to Figure 4In some of the above embodiments, the first end of the water guide cylinder 130 is in a closed state, and the second end of the water guide cylinder 130 is an open end. The mounting seat 142 is clamped to the outer periphery of the water guide cylinder 130 near the second end. When the flow regulator 140 is installed, the flow regulating cylinder 141 and the elastic return member are both extended into the water guide cylinder 130, and the mounting seat 142 is clamped to the outer periphery of the water guide cylinder 130 near the second end, and the open end of the water guide cylinder 130 is closed, so that water entering the flow regulating cylinder 141 can only flow out of the flow regulating cylinder 141 and the water guide cylinder 130 through the second water outlet hole 1411 and the corresponding first water outlet hole 1302.

[0075] For details, please refer again to Figure 4 In some of the above embodiments, the outer periphery of the water guide tube 130 near the second end is provided with a protrusion 131, please refer to Figure 5 The mounting base 142 is provided with a first engaging groove 1421 corresponding to the raised portion 131, so that the mounting base 142 can be engaged with the outer periphery of the water guide tube 130 near the second end by means of the first engaging groove 1421 and the raised portion 131. Of course, the positions of the raised portion 131 and the first engaging groove 1421 can be interchanged, that is, the raised portion 131 can be provided on the mounting base 142 and the first engaging groove 1421 can be provided on the water guide tube 130, which can also achieve the effect of engaging and fixing the water guide tube 130 to the mounting base 142.

[0076] In some embodiments, optionally, please refer again to Figure 3 、 Figure 4 and Figure 5 The top and bottom ends of the tank body 110 are respectively provided with a water inlet connector 1102 and a water outlet connector 1106. The water outlet connector 1106 extends into the tank body 110 along a first direction, with the end of the water outlet connector 1106 extending into the tank body 110 being located on the peripheral wall of the water guide cylinder 130. The end of the water outlet connector 1106 extending into the tank body 110 can be located upstream of at least one first water outlet hole group. In this way, the water outlet connector 1106 partially overlaps with the multiple first water outlet hole groups. At least a portion of the water flowing into the second chamber 1104 from the second water outlet holes 1411 will remain in the second chamber 1104 for a period of time, allowing this portion of water to be fully mixed in the second chamber 1104. This can reduce water temperature fluctuations and improve the stability of the outlet water temperature.

[0077] Optionally, refer again to Figure 1 and Figure 2 The tank body 110 is provided with a through hole 1107 for the water outlet connector 1106 to pass through, and the water outlet connector 1106 is snap-fitted into the through hole 1107 so that one end of the water outlet connector 1106 extends into the tank body 110 .

[0078] In some embodiments, optionally, please refer again to Figure 2 and Figure 4A filter cover is provided in the first chamber 1103, and a second water inlet hole 1211 is provided on the filter cover. The filter cover divides the first chamber 1103 into a water inlet chamber and a filter chamber 1105. The first end is located in the filter chamber 1105, and a filter material can be set in the filter chamber 1105. Then, the water entering the constant temperature water tank 10 can be filtered by the filter material in the filter chamber 1105 first, and the filtered water then enters the water guide cylinder 130 and the flow regulating cylinder 141 in turn, and finally flows into the second chamber 1104 through the second water outlet hole 1411 and the corresponding first water outlet hole 1302. In this process, the water flowing out of the constant temperature water tank 10 can be purified and the water temperature of this part of the water can be kept constant.

[0079] In some embodiments, optionally, please refer again to Figure 3 and Figure 4 The filter cover includes a filter cartridge 121 and a screw cap 122. The bottom of the filter cartridge 121 is fixedly connected to the support partition 120. The top of the filter cartridge 121 has an opening. The screw cap 122 is detachably connected to the filter cartridge 121 and is used to cover the opening. The filter cartridge 121 and the screw cap 122 enclose a filter chamber 1105. In combination with the second water inlet 1211 provided on the filter cartridge 121, water entering the constant temperature water tank 10 will first enter the water inlet chamber, and then enter the filter chamber 1105 through the second water inlet 1211. After being filtered by the filter material in the filter chamber 1105, the filtered water will then enter the water guide cylinder 130 and the flow regulating cylinder 141 in sequence, and finally flow into the second chamber 1104 through the second water outlet 1411 and the corresponding first water outlet 1302. The water flow direction can be changed multiple times, so that the water flowing into the constant temperature water tank 10 can be more fully mixed, thereby improving the constant temperature effect of the constant temperature water tank 10.

[0080] Optionally, refer again to Figure 4 There are multiple second water inlet holes 1211, and the multiple second water inlet holes 1211 are arranged along the circumference of the filter cartridge 121 to form a second water inlet hole group. The multiple second water inlet hole groups are arranged at intervals along the axial direction of the filter cartridge 121, so that the water in the first chamber 1103 can flow into the filter chamber 1105 more evenly, and the filtering effect is more uniform.

[0081] Optionally, refer again to Figure 4 , and refer to Figure 7 One of the rotary cover 122 and the side wall of the filter cartridge 121 is provided with a rotary buckle, and the other is provided with a clamping column 1212 that cooperates with the rotary buckle.

[0082] In some embodiments, a clamping column 1212 is provided on the side wall of the filter cartridge 121, and a rotary buckle is provided on the rotary cover 122. The rotary buckle and the rotary cover 122 form a second clamping groove 1221. The rotary cover 122 can be rotated counterclockwise to fasten the clamping column 1212 on the rotary buckle, and the clamping column 1212 is clamped in the second clamping groove 1221. The rotary cover 122 can also be rotated clockwise to disengage the clamping column 1212 from the rotary buckle, which facilitates the removal of the rotary cover 122 and the replacement of the filter material in the filter chamber 1105.

[0083] In other embodiments, the side wall of the filter cartridge 121 is provided with a screw buckle, and the side wall of the screw cover 122 is provided with a clamping column 1212. Similarly, the screw cover 122 can be rotated to fasten the clamping column 1212 on the screw buckle and clamp the clamping column 1212 in the second clamping groove 1221.

[0084] Optionally, refer again to Figure 4 The first water outlet holes 1302 are arranged into a plurality of first water outlet hole groups spaced apart along the axial direction of the water guide tube 130. Each first water outlet hole group includes first water outlet holes 1302 spaced apart along the circumferential direction of the water guide tube 130. Figure 5 The second water outlet holes 1411 are arranged into multiple groups of second water outlet hole groups axially spaced apart along the flow regulating tube 141. Each second water outlet hole group includes second water outlet holes 1411 circumferentially spaced apart along the flow regulating tube 141, which can make the water in the flow regulating tube 141 flow into the second chamber 1104 more evenly, thereby improving the mixing effect of this part of water, and is also more conducive to improving the constant temperature effect of the constant temperature water tank 10.

[0085] Please refer again Figure 2 The tank body 110 includes a top cover 111, an upper shell 112, a middle shell 113 and a lower shell 114 arranged in sequence along a first direction. The top cover 111, the upper shell 112, the middle shell 113 and the lower shell 114 are connected to form the tank body 110 with a cavity 1101.

[0086] Please refer again Figure 2 , and refer to Figure 8 In some embodiments, a first sealing sheet 115 is provided between the top cover 111 and the upper shell 112, and the top cover 111 and the upper shell 112 are fastened together by screws. A first mounting hole 1111 is provided on the top cover 111 for mounting a water inlet connector 1102. The water inlet connector 1102 can be mounted on the top cover 111, and the water inlet connector 1102 communicates with the cavity 1101 of the tank body 110, so that water flowing out of the water outlet pipe of the heat exchanger can flow into the cavity 1101 through the water inlet connector 1102.

[0087] In other embodiments, the top cover 111 is threadedly connected to the upper shell 112 .

[0088] In some embodiments, the upper shell 112, the middle shell 113 and the lower shell 114 are connected into a whole by welding. Figure 3 , and refer to Figure 9 A support step 1131 is provided at one end of the middle shell 113 close to the upper shell 112, and the second sealing sheet 116 and the support partition 120 are sequentially arranged on the support step 1131, and then the support partition 120 is pressed onto the support step 1131 by the pressure ring 117. The support partition 120 can be used to separate the cavity 1101 into a first chamber 1103 and a second chamber 1104.

[0089] In other embodiments, the middle shell 113 and the lower shell 114 are integrally formed.

[0090] In some embodiments, the water outlet connector 1106 is snap-connected to the lower housing 114 .

[0091] In other embodiments, the water outlet connector 1106 is welded to the lower shell 114 .

[0092] The water heater provided in one embodiment of the present application includes a heat exchanger and the above-mentioned constant temperature water tank 10, wherein the heat exchanger has a water outlet pipe, the constant temperature water tank 10 is connected to the water outlet pipe, and the inner cavity of the water outlet pipe is connected to the first chamber 1103. Specifically, the water inlet joint 1102 of the constant temperature water tank 10 can be connected to the water outlet pipe so that the inner cavity of the water outlet pipe is connected to the first chamber 1103. The hot water produced by the water heater flows into the constant temperature water tank 10 through the water outlet pipe and the water inlet joint 1102 of the heat exchanger. Please refer to Figure 3The water entering the constant temperature water tank 10 will first enter the water inlet chamber, and then enter the filter chamber 1105 through the second water inlet hole 1211. After being filtered by the filter material in the filter chamber 1105, the filtered water will enter the water guide cylinder 130 and the flow regulating cylinder 141 in turn, and finally flow into the second chamber 1104 through the second water outlet hole 1411 and the corresponding first water outlet hole 1302. The water flow direction can be changed more times, so that the water flowing into the constant temperature water tank 10 can be more fully mixed, thereby improving the constant temperature effect of the constant temperature water tank 10. When the constant temperature water tank 10 is faced with excessive water pressure or high water pressure fluctuation and instability, the flow regulating cylinder 141 can be driven to rotate a certain angle by actively or passively controlling the driving member, thereby reducing the communication area between the second water outlet 1411 and the first water outlet 1302, reducing the flow of water flowing into the second chamber 1104 through the second water outlet 1411 and the corresponding first water outlet 1302, and increasing the residence time of this part of water in the flow regulating cylinder 141, which is more conducive to making the water temperature of this part of water tend to be constant, thereby reducing water temperature fluctuation and improving the stability of the outlet water temperature. After the external water pressure tends to be stable, the flow regulating cylinder 141 can be driven to rotate in the opposite direction by actively or passively controlling the driving member, thereby increasing the communication area between the second water outlet 1411 and the first water outlet 1302, and accelerating the flow efficiency of the water without affecting the water temperature and the stability of the water flow.

[0093] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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 this specification.

[0094] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A constant temperature water tank, characterized in that: include: A tank body (110), wherein the tank body (110) has a cavity (1101); A supporting partition (120) is arranged in the cavity (1101), and the supporting partition (120) separates the cavity (1101) into a first chamber (1103) and a second chamber (1104) stacked along a first direction; A water guide cylinder (130) provided on the supporting partition (120) has a first end extending into the first chamber (1103) and a second end extending into the second chamber (1104); a first water inlet hole (1301) and a first water outlet hole (1302) are provided on the water guide cylinder (130); an inner cavity of the water guide cylinder (130) is connected to the first chamber (1103) via the first water inlet hole (1301), and an inner cavity of the water guide cylinder (130) is connected to the second chamber (1104) via the first water outlet hole (1302); and A flow regulator (140) mounted on the second end comprises a flow regulating cylinder (141) and a driving member, wherein the flow regulating cylinder (141) is rotatably disposed in the water guide cylinder (130) and engages with the inner wall of the water guide cylinder (130); the flow regulating cylinder (141) has an opening (1401) connected to the water guide cylinder (130) and facing the first end; and a second water outlet hole (1411) corresponding to the first water outlet hole (1302) is provided on a side wall of the flow regulating cylinder (141); The driving member is disposed in the flow regulating cylinder (141) and is used to drive the flow regulating cylinder (141) to rotate, so as to change the communication area between the second water outlet hole (1411) and the corresponding first water outlet hole (1302); The water guide cylinder (130) and the supporting partition (120) are integrally formed.

2. The constant temperature water tank according to claim 1, characterized in that: The flow regulator (140) further includes a fixing bracket mounted on the second end of the water guide cylinder (130), and an elastic reset member; One end of the elastic reset member is connected to the flow regulating cylinder (141), and the other end of the elastic reset member is connected to the fixed bracket; The driving member comprises an impeller (1413) fixedly connected to the flow regulating cylinder (141) and rotatably connected to the fixed bracket, wherein the impeller (1413) is used to rotate with the flow of the fluid to drive the flow regulating cylinder (141) to rotate.

3. The constant temperature water tank according to claim 2, characterized in that: The second end has a mounting opening communicating with the inner cavity of the water guide cylinder, and the fixed bracket includes a mounting seat (142) provided at the second end, and a mounting support rod (144) fixedly connected to the mounting seat (142) and located in the flow regulating cylinder (141); The mounting seat (142) is connected to the second end and is capable of covering the mounting opening; The impeller (1413) is rotatably connected to the mounting support rod (144); The mounting support rod (144) is provided with a first fixing rod (145) extending radially along the mounting support rod (144); One end of the elastic return member is connected to the first fixing rod (145), and the other end of the elastic return member is connected to the flow regulating cylinder (141).

4. The constant temperature water tank according to claim 3, characterized in that: A second fixing rod (146) is fixed to the flow regulating cylinder (141) and is arranged along the axial direction of the flow regulating cylinder (141); The mounting support rod (144) is provided with a blocking rod (147) extending radially along the mounting support rod (144); When the flow regulating cylinder (141) rotates to a predetermined angle, the second fixing rod (146) and the blocking rod (147) contact and limit each other.

5. The constant temperature water tank according to claim 2, characterized in that: The elastic reset element comprises a tension spring (143).

6. The constant temperature water tank according to claim 1, characterized in that: The top and bottom ends of the tank body (110) are respectively provided with a water inlet joint (1102) and a water outlet joint (1106); The water outlet joint (1106) extends into the tank body (110) along the first direction, and one end of the water outlet joint (1106) extending into the tank body (110) is located on one side of the peripheral wall of the water guide cylinder (130).

7. The constant temperature water tank according to claim 1, characterized in that: A filter cover is provided in the first chamber (1103), and a second water inlet hole (1211) is provided on the filter cover; The filter cover separates the first chamber (1103) into a water inlet chamber and a filter chamber (1105), and the first end is located in the filter chamber (1105).

8. The constant temperature water tank according to claim 7, characterized in that: The filter cover comprises a filter cartridge (121) and a screw cap (122); The bottom of the filter cartridge (121) is fixedly connected to the supporting partition (120), and the top of the filter cartridge (121) is open; The rotary cover (122) is detachably connected to the filter cartridge (121) and is used to cover the opening; the second water inlet hole (1211) is provided on the filter cartridge (121).

9. The constant temperature water tank according to claim 8, characterized in that: One of the rotary cover (122) and the side wall of the filter cartridge (121) is provided with a rotary buckle, and the other is provided with a clamping column (1212) that cooperates with the rotary buckle.

10. A water heater, characterized in that: include: a heat exchanger having a water outlet pipe; and The constant temperature water tank (10) according to any one of claims 1 to 9, wherein the constant temperature water tank (10) is connected to the water outlet pipe, and the inner cavity of the water outlet pipe is in communication with the first chamber (1103).

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