Instant water heater with self-adaptive water temperature adjusting function

Abstract

The utility model relates to an instant water heater with a self-adaptive water temperature adjusting function, which comprises a differential pressure switch, a first water inlet, a first water outlet, a second water inlet, a second water outlet, a water inlet end and a water outlet end, the heating assembly is communicated with the first water outlet of the differential pressure switch and is used for heating the inflowing water; the water outlet valve is provided with a second water inlet and a second water outlet, communicates with a water outlet pipeline of the heating assembly and is used for discharging water to the outside; the water outlet valve comprises a valve body and a water temperature adjusting mechanism arranged in the valve body, and the water temperature adjusting mechanism can detect the water temperature of flowing water in the valve body, control the water passing amount according to the detected water temperature and adjust the water temperature of outlet water. The water temperature adjusting device further comprises a manual adjusting piece, and the manual adjusting piece is connected to the water temperature adjusting mechanism and used for adjusting the position of the water temperature adjusting mechanism so that the water temperature adjusting mechanism can be located at the temperature adjusting position.

Description

Technical Field

[0001] The utility model relates to the field of the structure of electric water heaters, in particular to an instant water heater with a function of adaptively adjusting water temperature. Background Art

[0002] A water heater refers to a device that can raise the temperature of cold water to hot water within a certain period of time through various physical principles. According to different principles, it can be divided into electric water heaters, gas water heaters, solar water heaters, air energy, and rapid magnetic life water heaters, etc. When these water heaters are working, they all use the natural pressure of tap water, electric energy, light energy, and gas energy combustion to heat cold water and then spray it out from the nozzle.

[0003] However, when using a water heater, it is necessary to set the water temperature and keep it at the set temperature. Moreover, different users have different requirements for the comfort of the water temperature. Therefore, it is necessary to continuously adjust the water temperature to meet the needs of users. In the prior art, we usually control the temperature of the electric heating component. When the temperature of the electric heating component is too high, the power output of the heating component is reduced to cool it down. When the temperature of the heating component is too high, its heating power is increased to quickly raise the temperature. However, this control method cannot keep the water temperature in a suitable state all the time. The method of simply adjusting the power output of the heating component for constant temperature often deviates far from the stable range required by the user, which is the biggest drawback when the liquid temperature is too low or too high. For example, in winter when the water temperature is low, even full-power heating cannot reach a suitable outlet water temperature.

[0004] The Chinese utility model patent with the authorization announcement number of CN220269687U discloses a flow rate regulating mechanism for an electric water heater, including a flow rate circulation mechanism, including a flow rate pipe and a flow rate regulator arranged inside the flow rate pipe. The inside of the flow rate pipe is hollow and extends to both ends with openings. The flow rate regulator can move in the flow rate pipe under the action of a driving component to regulate the flow rate of the liquid passing through. A flow rate channel is provided between the flow rate regulator and the flow rate pipe. An adjusting switch is connected to the flow rate pipe and drives the flow rate pipe to move along the axis to change the relative position with the flow rate regulator, thereby changing the size of the flow rate channel. Compared with the prior art, the beneficial effect of the utility model lies in: setting a flow rate circulation mechanism, cooperating with a thermal element to drive the flow rate regulator, regulating the flow rate of the liquid entering the water outlet according to the temperature, so as to realize the constant temperature of the mixed liquid, ensure that the liquid pumped out from the water outlet is in a constant temperature state, and at the same time, without changing the working state of the electric heating component, saving electric power resources.

[0005] However, in this flow rate regulating mechanism, the thermal element is located in the water cavity, that is, in direct contact with hot water. When there is a very small temperature change in the hot water, the thermal element will generate movement, resulting in unstable water output, and further resulting in the water outlet temperature being erratic, reducing the use comfort of users. Summary of the Utility Model

[0006] To solve the above problems existing in the prior art, the present utility model provides an instant water heater with the function of adaptively adjusting the water temperature.

[0007] The above problems of the present utility model are solved by the following technical solutions:

[0008] An instant water heater with the function of adaptively adjusting the water temperature, including components connected in sequence,

[0009] A differential pressure switch, which has a first water inlet and a first water outlet, and the water inlet end is connected to the first water inlet;

[0010] A heating component, connected to the first water outlet of the differential pressure switch, for heating the flowing water;

[0011] A water outlet valve, which has a second water inlet and a second water outlet, and is connected to the water outlet pipeline of the heating component for discharging water to the outside;

[0012] The water outlet valve includes a valve body and a water temperature adjustment mechanism arranged in the valve body. The water temperature adjustment mechanism can detect the water temperature of the flowing water in the valve body and control the water flow passing through according to the detected water temperature to adjust the water temperature of the discharged water;

[0013] It further includes a manual adjustment part, which is connected to the water temperature adjustment mechanism to adjust the position of the water temperature adjustment mechanism so that the water temperature adjustment mechanism is in the temperature adjustment position.

[0014] The further setting of the above technical solution is: the water temperature adjustment mechanism includes a thermal element and a plug driven by the thermal element, and the plug adjusts the water flow rate flowing out of the valve body by changing its position.

[0015] The further setting of the above technical solution is: a water passing port is arranged in the valve body, and the plug controls the water volume flowing through the water passing port.

[0016] The further setting of the above technical solution is: the manual adjustment part can drive the water temperature adjustment mechanism to move the plug to the temperature adjustment position.

[0017] The further setting of the above technical solution is: a water blocking sleeve group is arranged in the valve body, the manual adjustment part is connected to the end of the water blocking sleeve group, and the water temperature adjustment mechanism is installed on the water blocking sleeve group.

[0018] The further setting of the above technical solution is: a water blocking cavity and a water blocking groove with one end open are arranged in the water blocking sleeve group, the thermal element of the water temperature adjustment mechanism is located in the water blocking cavity, and the plug extends into the water blocking groove;

[0019] The bottom of the water retaining groove is provided with a water inlet, which can make the water in the water retaining groove flow into the water retaining cavity.

[0020] The further setting of the above technical solution is that the manual adjusting member is a knob.

[0021] The further setting of the above technical solution is that the valve body includes an upper valve body and a lower valve body which are fixedly connected to each other. An extension pipe is provided on the lower valve body and extends into the upper valve body, and the water passing port is arranged on the extension pipe.

[0022] The further setting of the above technical solution is that a heat preservation sleeve is sleeved outside the thermostatic element.

[0023] The further setting of the above technical solution is that a water outlet layer is formed between the water retaining sleeve group and the inner wall of the upper valve body, and the water outlet layer is communicated with the second water outlet of the water outlet valve;

[0024] The water outlet layer is provided with a water return port.

[0025] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0026] 1. Two adjustment methods of manually adjusting the water temperature and automatically adjusting the water temperature are set. Users can select a suitable water temperature adjustment method according to their needs, increasing the user's choice; at the same time, when one adjustment method fails, the other method can be adopted to ensure the effectiveness of the water temperature adjustment;

[0027] The thermostatic element is heat-insulated to prevent the thermostatic element from directly contacting hot water and generating resonance with unstable hot water, resulting in unstable output hot water temperature. Description of the Drawings

[0028] Figure 1 It is a structural schematic diagram of the present utility model.

[0029] Figure 2 It is an exploded structural schematic diagram of the water outlet valve.

[0030] Figure 3 It is a sectional structural schematic diagram of the water outlet valve.

[0031] Figure 4 It is a structural schematic diagram of the water temperature adjustment mechanism.

[0032] Figure 5 It is an exploded structural schematic diagram of the upper valve body and the lower valve body.

[0033] Figure 6 It is an isometric sectional view of the water outlet valve.

[0034] Marked on the drawings: 100, differential pressure switch; 101, first water inlet;

[0035] 700. Heating component;

[0036] 800. Water outlet valve; 801. Second water inlet; 802. Second water outlet; 811. Water passing port; 810. Lower valve body; 820. Upper valve body; 812. Extension pipe; 813. Water outlet trough; 804. Water return port;

[0037] 900. Thermodynamic element; 910. Connecting rod;

[0038] 1. Plug; 2. Temperature sensor; 3. Supporting part; 1.1. Water passing part; 4. Water blocking sleeve group; 5. Manual adjusting part; 6. Heat preservation sleeve;

[0039] a. Water blocking cavity; b. Water blocking trough; c. Water outlet layer. Specific embodiments

[0040] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific embodiments, structures, features and their effects according to the present utility model as follows.

[0041] As Figure 1-6 shown, the following embodiments disclose an instant water heater with an adaptive water temperature adjustment function, including, connected in sequence,

[0042] A differential pressure switch 100, which has a first water inlet 101 and a first water outlet, and the inlet end is connected to the first water inlet 101;

[0043] A heating component 700, connected to the first water outlet of the differential pressure switch 100, for heating the flowing water;

[0044] A water outlet valve 800, which has a second water inlet 801 and a second water outlet 802, is connected to the water outlet pipeline of the heating component 700, for discharging water to the outside;

[0045] The water outlet valve 800 includes a valve body and a water temperature adjustment mechanism arranged in the valve body. The water temperature adjustment mechanism can detect the water temperature of the flowing water in the valve body, and control the water passing amount according to the detected water temperature to adjust the water temperature of the discharged water;

[0046] It further includes a manual adjusting part 5, which is connected to the water temperature adjustment mechanism to adjust the position of the water temperature adjustment mechanism so that the water temperature adjustment mechanism is in the temperature adjustment position.

[0047] The above is the basic solution of this embodiment.

[0048] Refer to Figure 1 and Figure 2As shown in the figure, the differential pressure switch 100, the heating component 700, and the water outlet valve 800 are connected in series to form a water circuit. The external water supply device supplies water to the differential pressure switch 100, and water enters from the first water inlet 101. When the water inlet reaches a certain level, the differential pressure switch 100 opens. At this time, the heating component 700 is powered on and generates heat to heat the water entering the heating component 700. The hot water enters the second water inlet 801 of the water outlet valve 800 from the heating component 700. The water temperature regulating mechanism in the water outlet valve 800 detects and regulates the hot water in the water passing cavity to ensure that the water supplied to the outside from the second water outlet 802 is hot water at a set temperature.

[0049] The principle of automatic temperature regulation is as follows: When water enters the water outlet valve 800, the thermal element 900 detects the temperature of the hot water in the valve body. When the detected temperature is higher than the set temperature, the water temperature regulating mechanism acts to reduce the water output of the hot water. At this time, the water inflow of the cold water at the first water inlet 101 decreases accordingly. However, the heating power of the heating component remains unchanged. Therefore, the temperature of the hot water formed by the cold water passing through the heating component increases, thereby increasing the outlet water temperature.

[0050] Similarly, when the detected temperature is lower than the set temperature, the water temperature regulating mechanism moves in the reverse direction to increase the water output of the hot water. As a result, the water inflow of the cold water increases, thereby reducing the outlet water temperature.

[0051] Operate the manual adjusting part 5 to drive the water temperature regulating mechanism to the temperature regulating position. At this temperature regulating position, the water temperature regulating mechanism can automatically regulate the water output of the hot water, thereby realizing constant temperature water output.

[0052] It should be noted that in this embodiment, the water temperature regulating mechanism has its own adjustment range limit. If its position is lower than its own adjustment upper limit, at this time, if the water temperature is too low, and the water temperature regulating mechanism cannot make the water output lower, thus unable to regulate the water temperature.

[0053] Similarly, if the position of the water temperature regulating mechanism is higher than its own adjustment lower limit, when the water temperature is too high, and the water temperature regulating mechanism cannot make the water output larger, thus unable to regulate the water temperature.

[0054] Preferably, a temperature sensor 2 is provided at the second water inlet 801 of the water outlet valve 800.

[0055] Refer to Figure 3 As shown in the figure, in this embodiment, the adjustment structure of the water temperature regulating mechanism is set as follows: The water temperature regulating mechanism includes a thermal element 900 and a plug 1 driven by the thermal element 900. The plug 1 adjusts the water flow rate flowing out of the valve body by changing its position.

[0056] The thermal actuator 900 is a component that can convert thermal energy into mechanical energy. It has the function of quickly and automatically transmitting mechanical motion after sensing temperature changes. Its mechanical motion utilizes thermal expansion materials and is not affected by the surrounding environment. It is a key component in various temperature regulation and control systems, with advantages such as accurate temperature regulation and control, and a simple structure. It is applied in fields such as the automotive industry, building heating, sanitary bathing, HVAC, industrial automation control, fire extinguishing, household appliances, solar water heaters, petrochemical industry, ships, safety devices, and aerospace.

[0057] A plug 1 is connected to the thermal actuator 900 through a connecting rod 910. When the thermal actuator 900 senses the water temperature and drives the connecting rod 910 according to the water temperature, the plug 1 is driven to move, thereby adjusting the water flow rate flowing out of the valve body.

[0058] In this embodiment, a water passing port 811 is provided in the valve body to cooperate with the plug 1, and the plug 1 controls the amount of water flowing through the water passing port 811.

[0059] When the plug 1 blocks the water passing port 811, the water flow rate is the lowest. When the plug 1 completely disengages from the water passing port 811, the water flow rate is the highest.

[0060] In the initial state, the water temperature entering the water passing cavity is relatively low. Due to the effect of the plug 1, if the low-temperature water cannot pass through the water passing port 811, it cannot be sensed by the thermal actuator 900, and thus the position of the plug 1 cannot be adjusted. Therefore, in this embodiment, a water passing part 1.1 is provided on the plug 1. When the plug 1 blocks the water passing port 811, the water flows through the water passing part 1.1.

[0061] That is, the minimum flow rate is not zero, and there will still be a small amount of water flowing through.

[0062] Specifically, as shown in Figure 4 An inclined notch is provided on the plug 1. When the end face of the plug 1 blocks the water passing port 811, a gap is formed between the notch and the edge of the water passing port 811, enabling a small amount of water to flow through.

[0063] In this embodiment, the manual adjusting member 5 can drive the water temperature adjusting mechanism to move the plug 1 to the temperature adjusting position.

[0064] In this embodiment, the user operates the manual adjusting member 5 to move the water temperature adjusting mechanism to a position where the water output can be adjusted;

[0065] Preferably, in this embodiment, the manual adjusting member 5 is a knob.

[0066] At the same time, the rotation angle of the manual adjusting member 5 is 360 degrees, providing the largest adjustment range.

[0067] In addition, in this embodiment, a holding member 3 is provided between the plug 1 and the inner wall of the valve body, and the holding member 3 enables the plug 1 to have a lowest position for movement.

[0068] Preferably, in this embodiment, the holding member 3 is a holding spring.

[0069] In order to enable the manual adjusting member 5 outside the water outlet valve 800 to drive the water temperature adjusting mechanism in the water outlet valve 800, in this embodiment, a water blocking sleeve group 4 is provided in the valve body, the manual adjusting member 5 is connected to the end of the water blocking sleeve group 4, and the water temperature adjusting mechanism is installed on the water blocking sleeve group 4.

[0070] The manual adjusting member 5 and the water blocking sleeve group 4 are connected by screw threads in the middle. By rotating the manual adjusting member 5, the water blocking sleeve group 4 can be linearly moved along its own axis direction, thereby driving the movement of the water temperature adjusting mechanism.

[0071] In addition, in order to enable the plug 1 to be held at the minimum flow position, a limiting ring is provided on the outer edge of the plug 1, and the limiting ring limits the plug 1 below the water outlet.

[0072] When the plug 1 is in this position, the thermal element 900 cannot drive the connecting rod to adjust the position of the plug 1. Therefore, only the manual adjusting member 5 can be manually operated to drive the entire water temperature adjusting mechanism, thereby adjusting the distance between the plug 1 and the water passing port 811.

[0073] A water blocking cavity a and a water blocking groove b with one end open are provided in the water blocking sleeve group 4. The thermal element 900 of the water temperature adjusting mechanism is located in the water blocking cavity a, and the plug 1 extends into the water blocking groove b;

[0074] A water inlet is provided at the bottom of the water blocking groove b, which enables the water in the water blocking groove b to flow into the water blocking cavity a.

[0075] Refer to Figure 6 As shown, the water blocking sleeve group 4 includes a water blocking cover and a water blocking seat. The water blocking cover and the water blocking seat are covered to form the water blocking cavity a. The connecting rod 910 extends from the water blocking cavity a into the water blocking groove b, thereby connecting the thermal element 900 and the plug 1.

[0076] When hot water enters the water blocking cavity a from the water blocking groove b through the water inlet, the thermal element 900 in the water blocking cavity a detects its temperature, and thus adjusts the extending length of the connecting rod 910 according to the detected temperature to change the position of the plug 1.

[0077] However, due to the instability of the water temperature, it will cause the thermal element 900 to constantly change and resonate with the water temperature, resulting in unstable output water temperature.

[0078] Therefore, in this embodiment, the thermal element 900 is externally covered with a heat preservation sleeve 6 .

[0079] The thermal element 900 is covered by the thermal insulation sleeve 6 to isolate the thermal element 900 from the hot water. The thermal element 900 can only detect the water temperature through the thermal insulation sleeve 6, which reduces the resonance between the thermal element 900 and the water temperature and makes the output water temperature more stable.

[0080] The valve body includes an upper valve body 820 and a lower valve body 810 which are fixedly connected to each other. The lower valve body 810 is provided with an extension pipe 812 extending into the upper valve body 820 , and the water outlet 811 is provided on the extension pipe 812 .

[0081] In this embodiment, hot water enters the valve body from the side of the lower end of the valve body, flows upward in the center of the valve body, passes through the water outlet 811 and is output toward the outside. The second water outlet 802 is provided on the side of the valve body.

[0082] Specific reference Figure 5 As described above, a water outlet groove 813 is axially arranged on the outer wall of the extension tube 812, and the upper end of the water outlet groove 813 extends to the end of the extension tube 812; that is, when hot water enters the top of the extension tube 812 through the water hole, it can be output to the outside of the extension tube 812 through the water outlet groove 813.

[0083] The extension pipe 812 is located in the water channel b, and a water outlet channel is formed between the water outlet channel 813 on the outer wall of the extension pipe 812 and the inner wall of the water retaining channel b. Hot water enters between the upper valve body 820 and the water retaining sleeve 4 through the water outlet channel.

[0084] A water outlet layer c is formed between the water retaining sleeve 4 and the inner wall of the upper valve body 820, and the water outlet layer c is connected to the second water outlet 802 of the water outlet valve 800;

[0085] The water outlet layer c is provided with a water return port 804 .

[0086] The water outlet layer c is an annular channel formed between the water retaining sleeve 4 and the inner wall of the upper valve body 820 , and the return water port 804 is connected to the pressure difference switch 100 through a return water pipeline.

[0087] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments with equivalent changes within the scope of the technical solution of the present utility model by using the above-disclosed technical content. However, as long as it does not depart from the content of the technical solution of the present utility model, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. An instant water heater with a function of self-adapting water temperature, comprising: A pressure differential switch (100) having a first water inlet (101) and a first water outlet, wherein the water inlet end is connected to the first water inlet (101); A heating component (700) is connected to the first water outlet of the pressure difference switch (100) and is used to heat the inflowing water; The water outlet valve (800) has a second water inlet (801) and a second water outlet (802), is connected to the water outlet pipeline of the heating component (700), and is used to discharge water to the outside; Features: The water outlet valve (800) comprises a valve body and a water temperature regulating mechanism arranged in the valve body, wherein the water temperature regulating mechanism can detect the water temperature of the flowing water in the valve body, and control the amount of water flowing according to the detected water temperature to adjust the water temperature of the outlet water; It also includes a manual adjustment member (5), which is connected to the water temperature adjustment mechanism and adjusts the position of the water temperature adjustment mechanism so that the water temperature adjustment mechanism is in a temperature adjustment position; The water temperature regulating mechanism comprises a thermal element (900) and a plug (1) driven by the thermal element (900); the plug (1) regulates the flow of water out of the valve body by changing its position.

2. The instant water heater with self-adaptive water temperature adjustment function according to claim 1, characterized in that: A water outlet (811) is provided in the valve body, and the plug (1) controls the amount of water flowing through the water outlet (811).

3. The instant water heater with self-adaptive water temperature adjustment function according to claim 2, characterized in that: The manual adjustment member (5) can drive the water temperature adjustment mechanism to move the plug (1) to a temperature adjustment position.

4. The instant water heater with self-adaptive water temperature adjustment function according to claim 2, characterized in that: A water retaining sleeve group (4) is arranged in the valve body, the manual adjustment member (5) is connected to the water retaining sleeve group (4), and the water temperature adjustment mechanism is installed in the water retaining sleeve group (4).

5. The instant water heater with self-adaptive water temperature adjustment function according to claim 4, characterized in that: The water retaining sleeve (4) is provided with a water retaining cavity (a) and a water retaining groove (b) with one end open, the thermal element (900) is located in the water retaining cavity (a), and the plug (1) extends out of the water retaining groove (b); The bottom of the water retaining groove (a) is provided with a water inlet, which can allow the water in the water retaining groove (b) to flow into the water retaining cavity (a).

6. The instant water heater with self-adaptive water temperature adjustment function according to any one of claims 1 to 5, characterized in that: The manual adjustment member (5) is a knob.

7. The instant water heater with self-adaptive water temperature adjustment function according to claim 4, characterized in that: The valve body comprises an upper valve body (820) and a lower valve body (810) which are fixedly connected to each other. The lower valve body (810) is provided with an extension pipe (812) extending into the upper valve body (820), and the water outlet (811) is arranged on the extension pipe (812).

8. The instant water heater with self-adaptive water temperature adjustment function according to claim 1, characterized in that: The thermal element (900) is externally covered with a heat-insulating sleeve (6).

9. The instant water heater with self-adaptive water temperature adjustment function according to claim 7, characterized in that: A water outlet layer (c) is formed between the water retaining sleeve assembly (4) and the inner wall of the upper valve body (820), and the water outlet layer (c) is in communication with the second water outlet (802) of the water outlet valve (800); The water outlet layer (c) is provided with a water return port (804).

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