Double-voltage heating device for water dispenser

Abstract

The double-voltage heating device comprises a shell and a heating body assembly, the shell is a hollow structural body with the periphery continuously closed, and a heat exchange cavity is formed between the shell and the heating body assembly; the heating body assembly comprises a first single-end U-shaped heating tube and a second single-end U-shaped heating tube; a binding post of the first single-end U-shaped heating tube and a binding post of the second single-end U-shaped heating tube are electrically connected with a first power source and a second power source which are different in voltage respectively. A binding post of the first single-end U-shaped heating tube and a binding post of the second single-end U-shaped heating tube are located at the two ends of the heating body assembly respectively. The first single-end U-shaped heating tube is folded by taking the position, close to the middle point, between the two ends as a bending part, and the second single-end U-shaped heating tube and the first single-end U-shaped heating tube are the same in structure; and the first single-end U-shaped heating tube and the second single-end U-shaped heating tube are tightly buckled and connected with each other. The heating device is suitable for two different voltage environments, and is small and compact in size and efficient and reliable in heating.

Description

Technical Field

[0001] This utility model relates to the field of water dispenser technology, and in particular to a dual-voltage heating device for water dispensers. Background Technology

[0002] Existing water dispensers suffer from the following problems due to structural limitations:

[0003] 1. The single-voltage structure design is not applicable to different voltage environments, thus limiting its scope of application;

[0004] 2. The overall volume is large, the internal heating element is not compact, the heat exchange area is small, and the heating efficiency is limited.

[0005] Therefore, in order to solve the above problems, it is urgent to design a dual-voltage heating device for water dispensers that can be used in two different voltage environments, is small and compact, and has high heating efficiency and reliability. Utility Model Content

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0007] A dual-voltage heating device for a water dispenser includes a housing and a heating element assembly disposed within the housing, characterized in that:

[0008] The outer shell is a hollow structure that is continuously closed on all four sides, and a heat exchange cavity is formed between the outer shell and the heating component;

[0009] The heating element assembly includes a first single-ended U-shaped heating tube and a second single-ended U-shaped heating tube;

[0010] The terminals of the first single-ended U-shaped heating element and the second single-ended U-shaped heating element are electrically connected to the first power supply and the second power supply, respectively; the voltages of the first power supply and the second power supply are different.

[0011] The terminals of the first single-ended U-shaped heating element and the second single-ended U-shaped heating element are located at the two ends of the heating element assembly, respectively.

[0012] The first single-ended U-shaped heating tube is folded in half with the midpoint between the two ends as the bend. The second single-ended U-shaped heating tube has the same structure as the first single-ended U-shaped heating tube.

[0013] The first single-ended U-shaped heating element and the second single-ended U-shaped heating element are tightly connected to each other.

[0014] Preferably, the non-terminal section of the second single-ended U-shaped heating tube is inserted into the folded first single-ended U-shaped heating tube, and the non-terminal section of the first single-ended U-shaped heating tube is inserted into the folded second single-ended U-shaped heating tube.

[0015] Preferably, the straight section of the first single-ended U-shaped heating element is in close contact with the straight section of the second single-ended U-shaped heating element.

[0016] Preferably, the outer shell is a square hollow structure.

[0017] Preferably, the surfaces of the first single-ended U-shaped heating element and the second single-ended U-shaped heating element are subjected to sandblasting anodizing treatment.

[0018] Preferably, the first single-ended U-shaped heating element and the second single-ended U-shaped heating element are stainless steel tubes, quartz tubes, or ceramic heating elements.

[0019] Preferably, the first single-ended U-shaped heating element and the second single-ended U-shaped heating element are detachably and interlocked.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. The heating element assembly of this utility model adopts a dual-terminal dual-voltage structure design. By connecting the terminals of the first single-ended U-shaped heating tube and the second single-ended U-shaped heating tube to a first power supply and a second power supply with different voltages respectively, it can be applied to two different voltage environments.

[0022] 2. The first single-end U-shaped heating tube and the second single-end U-shaped heating tube are bent and tightly connected to each other to form a small and compact heating element assembly with a large heat exchange area and high heat exchange efficiency, which greatly improves the heating efficiency.

[0023] 3. The straight section of the first single-ended U-shaped heating tube is tightly fitted with the straight section of the second single-ended U-shaped heating tube. By reducing or eliminating the connection gap between the two single-ended U-shaped heating tubes, a small-volume structure with dual-end dual voltage is achieved. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0026] The components include: outer shell 1, heating element assembly 2, first single-ended U-shaped heating tube 21, second single-ended U-shaped heating tube 22, heat exchange chamber 10, and terminal block 20. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0028] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0031] Figure 1 , 2 As shown, a dual-voltage heating device for a water dispenser includes a housing 1 and a heating element assembly 2 disposed inside the housing 1. The housing 1 is a hollow structure that is continuously closed on all four sides, and a heat exchange chamber 10 is formed between the housing 1 and the heating element assembly.

[0032] The heating element assembly 2 includes a first single-ended U-shaped heating tube 21 and a second single-ended U-shaped heating tube 22;

[0033] The terminals 20 of the first single-ended U-shaped heating element 21 and the second single-ended U-shaped heating element 22 are electrically connected to the first power supply (not shown in the figure) and the second power supply (not shown in the figure), respectively; the voltages of the first power supply and the second power supply are different.

[0034] The terminals 20 of the first single-ended U-shaped heating tube 21 and the terminals 20 of the second single-ended U-shaped heating tube 22 are located at the two ends of the heating element assembly 2, respectively.

[0035] The first single-ended U-shaped heating tube 21 is folded in half with the midpoint between the two ends as the bend. The second single-ended U-shaped heating tube 22 has the same structure as the first single-ended U-shaped heating tube 21.

[0036] The first single-ended U-shaped heating element 21 and the second single-ended U-shaped heating element 22 are tightly connected to each other.

[0037] In this embodiment, the heating element assembly adopts a dual-terminal dual-voltage structure design. By connecting the terminals 20 of the first single-ended U-shaped heating tube 21 and the second single-ended U-shaped heating tube 22 to a first power supply and a second power supply with different voltages, it can be adapted to two different voltage environments. At the same time, the first single-ended U-shaped heating tube 21 and the second single-ended U-shaped heating tube 22 are bent and tightly connected to each other to form a small and compact heating element assembly. Moreover, the dual heating tube structure increases the heat exchange area and greatly improves the heating efficiency.

[0038] In this embodiment, end caps (not shown in the figure) are provided at both ends of the outer shell 1, and the heat exchange cavity 10 is formed between the outer shell 1 and the heating element assembly through the end caps and the outer shell 1.

[0039] Furthermore, Figure 1 , 2 As shown, in order to make the connection between the two heating tubes more compact and secure, the non-terminal section of the second single-ended U-shaped heating tube 22 is inserted into the folded first single-ended U-shaped heating tube 21, and the non-terminal section of the first single-ended U-shaped heating tube 21 is inserted into the folded second single-ended U-shaped heating tube 22.

[0040] In this embodiment, the connection structure of the first single-ended U-shaped heating tube 21 and the second single-ended U-shaped heating tube 22 is similar to the interlocking of the fingers of a person's left hand and right hand. This structure can greatly reduce the overall volume of the heating element assembly and increase the heat exchange area, thereby greatly improving the heat exchange efficiency.

[0041] Furthermore, Figure 1 , 2 As shown, in order to reduce the volume of the heating element assembly, the straight section of the first single-ended U-shaped heating tube 21 is tightly fitted with the straight section of the second single-ended U-shaped heating tube 22.

[0042] In this embodiment, the above structure achieves a small-volume structure with dual-terminal dual voltage by reducing or eliminating the connection gap between the two single-ended U-shaped heating tubes.

[0043] Furthermore, Figure 1 , 2 As shown, in order to increase the heat exchange area and improve the heating speed while maintaining a small and compact size, the outer shell 1 is a square hollow structure.

[0044] Furthermore, in order to improve heat exchange efficiency, the surfaces of the first single-ended U-shaped heating tube 21 and the second single-ended U-shaped heating tube 22 are subjected to sandblasting anodizing treatment.

[0045] In this embodiment, by using sand-surface anodizing, a large number of uneven shapes can be generated on the surface of the heating element, greatly increasing the surface area in contact with water, thereby allowing water to absorb heat energy more quickly to form hot water.

[0046] Furthermore, Figure 1 , 2 As shown, in order to meet the needs of different scenarios and users, the first single-ended U-shaped heating element 21 and the second single-ended U-shaped heating element 22 are either stainless steel tubes, quartz tubes or ceramic heating elements.

[0047] Furthermore, Figure 1 , 2 As shown, for ease of disassembly and maintenance, the first single-ended U-shaped heating element 21 and the second single-ended U-shaped heating element 22 are detachably and interlocked.

[0048] In this embodiment, the first single-ended U-shaped heating element 21 and the second single-ended U-shaped heating element 22 are locked together by external screws (not shown in the figure).

[0049] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. A double-voltage heating device for a water dispenser, comprising a housing and a heating body assembly arranged in the housing, characterized in that: the housing is a hollow structure with continuous enclosure on all sides, and a heat exchange cavity is formed between the housing and the heating body assembly; the heating body assembly comprises a first single-end U-shaped heating tube and a second single-end U-shaped heating tube; the terminal posts of the first single-end U-shaped heating tube and the second single-end U-shaped heating tube are respectively electrically connected with a first power source and a second power source, and the voltages of the first power source and the second power source are different; the terminal posts of the first single-end U-shaped heating tube and the second single-end U-shaped heating tube are respectively located at two ends of the heating body assembly; the first single-end U-shaped heating tube is folded at a position close to the midpoint between the two ends, and the second single-end U-shaped heating tube has the same structure as the first single-end U-shaped heating tube; the first single-end U-shaped heating tube and the second single-end U-shaped heating tube are tightly connected with each other; the non-terminal post segment of the second single-end U-shaped heating tube is inserted into the first single-end U-shaped heating tube after folding, and the non-terminal post segment of the first single-end U-shaped heating tube is inserted into the second single-end U-shaped heating tube after folding; the straight tube segment of the first single-end U-shaped heating tube is tightly attached to the straight tube segment of the second single-end U-shaped heating tube; the housing is a square hollow structure; the surfaces of the first single-end U-shaped heating tube and the second single-end U-shaped heating tube are subjected to sand surface anodizing treatment; the first single-end U-shaped heating tube and the second single-end U-shaped heating tube are one of a stainless steel tube, a quartz tube or a ceramic heating tube; the first single-end U-shaped heating tube and the second single-end U-shaped heating tube are detachably tightly connected with each other. ​ ​ ​ ​ ​ ​ 2. A dual voltage heating device for a water boiler according to claim 1, characterized in that, ​ 3. A dual voltage heating device for a water boiler as claimed in claim 1, characterized in that, ​ 4. A dual voltage heating device for a water dispenser as defined in claim 1, wherein, ​ 5. A dual voltage heating device for a water dispenser as defined in claim 1, wherein, ​ 6. A dual voltage heating device for a water dispenser as claimed in claim 1 or 2 or 3 or 5, wherein, ​ 7. A dual voltage heating device for a water boiler according to claim 1 or 2 or 3 or 5, characterized in that, ​

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