Liquid heater

Abstract

The utility model discloses a liquid heater which comprises a main body and a water supply device arranged on the main body, and the water supply device comprises a water outlet nozzle arranged on the upper portion of the main body. The water pump is arranged below the water outlet nozzle; the water supply pipeline is used for communicating the water pump with the water outlet nozzle, and a part with retained water in the water supply pipeline is defined as a retained water section; the main body is provided with: a sterilization device which is disposed on the water supply line downstream of the remaining water section and sterilizes and disinfects the remaining water; the sterilization device is an ultraviolet sterilization device, and at least one half of the water retaining section is configured to extend in the ultraviolet irradiation direction of the sterilization device so as to enlarge the sterilization range of the sterilization device; according to the utility model, the irradiation time of water flow can be prolonged, so that the sterilization effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drinking water devices, in particular to a liquid heater. Background Art

[0002] A liquid heater refers to a device that uses various physical principles to increase the temperature of cold water into hot water within a certain period of time. When it is used as a milk frother, if water is stored in the pipeline, it is easy to breed bacteria, resulting in a decrease in water quality. Existing milk frothers use instantaneous heating to heat water to about 40°C. Water at this temperature has a poor sterilization effect on bacteria, so there are still a large number of bacteria in the water, so it is needed.

[0003] An existing milk frother such as the one disclosed in patent number CN109363507A comprises a shell, wherein a water tank, a water pump and a water outlet are arranged in the shell, an instantaneous heater is arranged between the water pump and the water outlet, a sterilizing device is arranged between the instantaneous heater and the water outlet, and the sterilizing device comprises a light emitting diode (LED) and a guide tube, wherein the light emitting diode (LED) is arranged on the top of the guide tube; the bottom of the guide tube is connected with the instantaneous heater through a water inlet pipe, and one side of the top of the guide tube is connected with the water outlet through a water outlet pipe. This patent cooperates the guide tube with a diffuser inside it to increase the irradiation area of ​​the LED, but the guide tube occupies a small proportion of the length of the water supply pipeline. Since the water flows through the guide tube at a fast speed during use, the water will not be retained when flowing through the sterilization module, thereby reducing the sterilization effect. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a liquid heater, and the utility model adopts the following technical solutions:

[0005] A liquid heater comprises a main body and a water supply device arranged on the main body, wherein the water supply device comprises:

[0006] A water outlet nozzle arranged on the upper part of the main body;

[0007] A water pump disposed below the water outlet; and

[0008] A water supply pipeline for connecting the water pump and the water outlet, wherein the portion of the water supply pipeline with retained water is defined as a retained water section;

[0009] The subject has:

[0010] a sterilizing device, which is arranged on the water supply pipeline at a position downstream of the retained water section to sterilize and disinfect the retained water;

[0011] Wherein, the sterilization device is an ultraviolet sterilization device, and at least one half of the retained water section is configured to extend in the ultraviolet irradiation direction of the sterilization device to increase the sterilization range of the sterilization device.

[0012] Furthermore, the water supply device includes a transfer tube connected to the water supply pipeline, the transfer tube having a water inlet extending along a first direction, and a water outlet extending along a second direction perpendicular to the first direction; the sterilization device is installed on the transfer tube in a manner of irradiating ultraviolet rays along the first direction.

[0013] Furthermore, the water supply pipeline has a water retention section connected to the water inlet.

[0014] Furthermore, the ends of the water inlet and the water outlet have installation sections that gradually shrink from the inside to the outside.

[0015] Furthermore, the adapter tube has a positioning portion for positioning the sterilization device, and the positioning portion is arranged above the water outlet.

[0016] Furthermore, the sterilization device includes a fixing frame, and the fixing frame is interference-mounted on the positioning portion.

[0017] Furthermore, the water outlet nozzle is connected to the water outlet portion through a water outlet pipe, and the water outlet pipe is arranged above the water outlet nozzle.

[0018] Furthermore, the water supply pipeline includes a hard pipe in the section where water is retained, and the hard pipe extends in the irradiation direction of the ultraviolet rays.

[0019] Furthermore, the hard pipe is configured as a transparent glass tube through which the ultraviolet light can be observed by a user.

[0020] Furthermore, the main body is provided with a transparent water gauge, and the hard water pipe is configured corresponding to the transparent water gauge to be suitable for observation by the user.

[0021] The beneficial effects of the utility model are:

[0022] The sterilization device of the utility model is arranged on the water supply pipeline at a position downstream of the retained water section, and can irradiate the retained water, and at least one half of the retained water section is configured to extend in the ultraviolet irradiation direction of the sterilization device, which can increase the irradiation time of the water flow, thereby improving the sterilization effect.

[0023] The utility model provides a water supply pipeline having a water retaining section which includes a hard pipe, and a correspondingly arranged transparent water gauge is arranged on the main body, so that the disinfection effect of the ultraviolet lamp can be visualized.

[0024] The positioning part on the transfer tube of the utility model and the water outlet pipe connected to the water outlet part are both arranged above the water outlet. By utilizing the communicating vessel principle, when not in use, no water will remain between the water outlet and the sterilizing device to cause secondary contamination of the water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0026] Figure 2 This is a cross-sectional view of the internal structure of the utility model;

[0027] Figure 3 It is a structural explosion diagram of the water supply device of the utility model;

[0028] Figure 4 It is the internal structure diagram of the transfer tube of the utility model.

[0029] In the figure, the main body 1, the transparent water ruler 11, the placing table 12, the water supply device 2, the water outlet 21, the water pump 22, the water supply pipeline 23, the retained water section 231, the water outlet pipe 232, the hard pipe 233, the transfer pipe 24, the water inlet part 241, the water outlet part 242, the positioning part 243, the sterilization device 3, the fixing frame 31, and the UVC component 32. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various configurations. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Unless otherwise defined, the technical terms or scientific terms used in this patent document should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the patent specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantitative limitations, but indicate the existence of at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may also change accordingly. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on this application.

[0032] like Figure 1-3 As shown, the utility model discloses a liquid heater, which includes a main body 1 and a water supply device 2 arranged on the main body, the water supply device 2 includes: a water outlet 21 arranged on the upper part of the main body; a water pump 22 arranged below the water outlet; and a water supply pipeline 23 for connecting the water pump 22 and the water outlet 21, and the part with retained water in the water supply pipeline is defined as a retained water section 231; wherein, the utility model is also provided with an instantaneous heater, and the instantaneous heater can adopt the instantaneous heater in the existing milk frother, which is arranged at any position between the water pump 22 and the water outlet 21, and no further details are given here.

[0033] Furthermore, the subject has:

[0034] a sterilizing device 3, which is arranged on the water supply pipeline 23 at a position downstream of the retained water section, so that the retained water passes through the sterilizing device when flowing out, thereby sterilizing and disinfecting the retained water;

[0035] The sterilization device 3 is an ultraviolet sterilization device, and at least one half of the retained water section 231 is configured to extend in the ultraviolet irradiation direction of the sterilization device to increase the sterilization range of the sterilization device.

[0036] The sterilization device of the utility model is arranged on the water supply pipeline at a position downstream of the retained water section, and can irradiate the retained water, and at least one half of the retained water section is configured to extend in the ultraviolet irradiation direction of the sterilization device, which can increase the irradiation time of the water flow, thereby improving the sterilization effect on the water flow.

[0037] Specifically, the sterilizing device 3 is arranged between the instantaneous heater and the water outlet 21. The present application adopts the method of instantaneous heating to provide warm water. A sterilizing device is added between the instantaneous heater and the water outlet. Normal temperature water is heated to 40-45°C by the instantaneous heater, sterilized by the sterilizing device first, and then discharged from the water outlet. Thus, the water outlet safety of the liquid heater is ensured. The sterilizing device is arranged at the water outlet, so that the requirements for the water source are not high. It only needs to be connected to household normal temperature tap water to meet the water quality requirements.

[0038] In order to keep the interior of the main body clean and tidy, the utility model can use an external water tank, and set a drain at the bottom of the water tank. A placement table 12 opposite to the external water tank is set on the main body, and the drain is connected to the water pump to realize the water pump's pumping function on the external water tank; as another embodiment of the present application, the utility model can also use a built-in water tank. In order to clean the water tank more conveniently, a drain can be set at the bottom of the water tank, and a normally closed switch is set at the drain. When cleaning is required, the switch is turned on and the water tank is cleaned with a clean water source. More preferably, the water tank is detachably arranged in the main body 1. When cleaning or pouring clean water is required, the water tank can be taken out to facilitate users to add water or clean. More preferably, a water inlet can be provided in the water tank, and the water inlet is connected to domestic tap water or other clean water sources.

[0039] like Figure 2 As shown, the water supply device 2 includes a transfer tube 24 connected to the water supply pipeline, the transfer tube 24 has a water inlet portion 241 extending along a first direction, and a water outlet portion 242 extending along a second direction perpendicular to the first direction; the sterilization device 3 is installed on the transfer tube in a manner of irradiating ultraviolet rays along the first direction.

[0040] In order to irradiate the retained water in the water supply pipeline, the water supply pipeline has a retained water section connected to the water inlet.

[0041] like Figure 4 As shown, in order to realize the connection between the transfer tube 24 and other pipe parts in the water supply pipeline, the ends of the water inlet and outlet have installation sections that gradually shrink from the inside to the outside. Specifically, the installation section is a convex ridge that gradually shrinks from the inside to the outside. Since the water flow carrier is generally a soft water pipe, such a setting can facilitate the connection between the transfer tube and the soft water pipe, and prevent the water pipe from falling off the transfer tube.

[0042] The transfer tube has a positioning portion 243 for positioning the sterilizing device, and the positioning portion is arranged above the water outlet. In contrast, the sterilizing device 3 includes a fixing frame 31, and the fixing frame is interference-mounted on the positioning portion.

[0043] The water outlet 21 is connected to the water outlet part through the water outlet pipe 232, and the water outlet pipe 232 is arranged above the water outlet. The utility model utilizes the principle of communicating vessels. By arranging the sterilization device and the water outlet pipe above the water outlet, there will be no retained water between the water outlet and the sterilization device when not in use, causing secondary contamination of the water flow. Furthermore, in order to prevent retained water from appearing in the water outlet pipe, since it is a soft water pipe, the water outlet pipe 232 is configured to be entirely located above the water outlet 21, including its curved portion.

[0044] Furthermore, the water supply pipeline 23 has a water retention section including a hard pipe 233, and the hard pipe extends in the irradiation direction of the ultraviolet light. Specifically, the hard pipe 233 is a quartz tube or a transparent glass tube or other hard pipes in the prior art that allow the user to observe the ultraviolet light, which will not be elaborated here.

[0045] Furthermore, the main body has a transparent water gauge 11, and the hard pipe is configured corresponding to the transparent water gauge to be suitable for user observation. Furthermore, as another embodiment, the transparent water gauge on the main body 1 in the utility model can also be replaced with a transparent part that can correspond to the position of the hard pipe, which will not be elaborated here.

[0046] It should be noted that the sterilization device in the utility model also includes a UVC component 32 located in the fixing frame 31. The UVC component can be any UVC sterilization component for sterilizing drinking water in the prior art, which is assembled with a UVC ultraviolet lamp board, a highly transparent quartz glass cover, and a sealing silicone plug and fixed on the transfer tube through a fixing bracket. The quartz glass cover has a backing adhesive, which is installed on the UVC board to fix the two through the backing adhesive, and then the component is installed in the sealing silicone plug, and finally installed on the transfer tube and fixed with a fixing bracket. This embodiment specifically introduces one installation method. The UVC component in the utility model can also adopt a different installation and connection method in the prior art, which will not be described in detail here.

[0047] The above are only preferred embodiments of the present invention. The protection scope of the present invention shall be based on the scope defined by the claims. Several improvements and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall also be regarded as the protection scope of the present invention.

Claims

1. A liquid heater, comprising a main body and a water supply device arranged on the main body, wherein the water supply device comprises: A water outlet nozzle arranged on the upper part of the main body; A water pump disposed below the water outlet; as well as A water supply pipeline for connecting the water pump and the water outlet, wherein the portion of the water supply pipeline with retained water is defined as a retained water section; It is characterized in that the main body has: a sterilizing device, which is arranged on the water supply pipeline at a position downstream of the retained water section to sterilize and disinfect the retained water; Wherein, the sterilization device is an ultraviolet sterilization device, and at least one half of the retained water section is configured to extend in the ultraviolet irradiation direction of the sterilization device to increase the sterilization range of the sterilization device.

2. A liquid heater according to claim 1, characterized in that: The water supply device includes a transfer tube connected to the water supply pipeline, the transfer tube has a water inlet extending along a first direction, and a water outlet extending along a second direction perpendicular to the first direction; the sterilization device is installed on the transfer tube in a manner of irradiating ultraviolet rays along the first direction.

3. A liquid heater according to claim 2, characterized in that: The water supply pipeline has a water retention section connected to the water inlet.

4. A liquid heater according to claim 2 or 3, characterized in that: The ends of the water inlet and the water outlet have installation sections which gradually shrink from the inside to the outside.

5. A liquid heater according to claim 2 or 3, characterized in that: The transfer tube is provided with a positioning portion for positioning the sterilizing device, and the positioning portion is arranged above the water outlet.

6. A liquid heater according to claim 5, characterized in that: The sterilization device comprises a fixing frame, and the fixing frame is interference-mounted on the positioning portion.

7. A liquid heater according to claim 5, characterized in that: The water outlet nozzle is connected to the water outlet portion through a water outlet pipe, and the water outlet pipe is arranged above the water outlet nozzle.

8. The liquid heater according to claim 1, characterized in that: The water supply pipeline includes a hard pipe in the water retaining section, and the hard pipe extends in the irradiation direction of the ultraviolet rays.

9. A liquid heater according to claim 8, characterized in that: The hard pipe is configured as a transparent glass tube through which the ultraviolet light can be observed by a user.

10. The liquid heater according to claim 8, characterized in that: The main body is provided with a transparent water gauge, and the hard pipe is configured corresponding to the transparent water gauge to be suitable for observation by a user.

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