Double-layer mosquito-repellent incense type electric heating tube

Abstract

The utility model discloses a double-layer mosquito-repellent incense type electric heating tube which comprises a first electric heating tube layer bent in a mosquito-repellent incense shape and a second electric heating tube layer arranged below the first electric heating tube layer and bent in a mosquito-repellent incense shape, the tail end of the first electric heating tube layer and the tail end of the second electric heating tube layer are connected into a whole, and the connecting position of the first electric heating tube layer and the second electric heating tube layer is bent in an arc shape. The first electric heating tube layer and the second electric heating tube layer are overlapped up and down, and a gap is formed between the first electric heating tube layer and the second electric heating tube layer; according to the double-layer mosquito-repellent incense type electric heating tube, the working electric power density can be reduced, the tube is good in flexibility and convenient to machine and form, and the conditions of surface scratching and magnesium powder loosening during forming are avoided.

Description

Technical Field

[0001] The utility model relates to a double-layer mosquito-repellent incense type electric heating tube. Background Art

[0002] In the drinking water equipment industry, supplying warm water is an important part of meeting the basic needs of users, especially in various occasions such as homes, offices and public areas. Although traditional electric water dispensers can achieve basic heating functions, their thermal efficiency and heating uniformity still need to be improved.

[0003] Specifically, the thermal efficiency of the current electric heating tube under normal working conditions is roughly maintained at around 90%, and there is still room for improvement. In addition, before product optimization, the manufacturing process of the electric heating tube needs to go through three steps before it can be formed, and its cold end length reaches 90MM. This design is more likely to cause damage to the tube surface during processing, such as scratches. At the same time, the guide rod bending tube at the cold end also has the risk of touching the tube wall during operation, as well as potential problems such as loose magnesium powder.

[0004] In response to the above problems, it is necessary to carry out technological innovation and optimization and upgrading of the current electric heating tubes to improve thermal efficiency, optimize heating uniformity, and reduce the risk of damage during the manufacturing process, thereby improving user experience and product reliability. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a double-layer mosquito coil type electric heating tube which can reduce the working power density, has good flexibility of the tube material and is easy to process and form, and avoids surface scratches and loose magnesium powder during forming.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A double-layer mosquito-repellent coil type electric heating tube comprises a first electric heating tube layer bent in a mosquito-repellent coil shape, and a second electric heating tube layer bent in a mosquito-repellent coil shape and arranged below the first electric heating tube layer, wherein the end of the first electric heating tube layer is connected to the end of the second electric heating tube layer as a whole and is bent in an arc shape at the connection point, and the first electric heating tube layer and the second electric heating tube layer are overlapped up and down, and there is a gap between the first electric heating tube layer and the second electric heating tube layer.

[0008] Preferably, the head end of the first electric heating tube layer is connected to a first electric connector, and the head end of the second electric heating tube layer is connected to a second electric connector.

[0009] Preferably, the first electrical connector and the second electrical connector are arranged adjacent to each other.

[0010] Preferably, the first electric heating pipe layer includes a first vertical section connected to the first electrical connector, a first inner curved section integrally formed with the first vertical section, and a lower curved section integrally formed with the first inner curved section.

[0011] Preferably, the second electric heating pipe layer includes a second vertical section connected to the second electrical connector, a second inner curved section integrally formed with the second vertical section, and an upper curved section integrally formed with the second inner curved section.

[0012] Preferably, the lower curved section and the upper curved section are symmetrical in vertical direction and connected as a whole.

[0013] Preferably, the first inner curved section and the second inner curved section have more than three curved circles.

[0014] Preferably, the first electrical connector and the second electrical connector are both provided with flange covers.

[0015] The beneficial effects of the utility model are:

[0016] Reduce the working power density. The surface load of the original single-layer mosquito coil is 14W / cm 2 The left and right sides are optimized to double-layer mosquito coils with a working power density of 9W / cm 2 It greatly reduces the local breakdown of the cold end and the phenomenon of rapid dry burning due to lack of water and bursting of pipes and leakage caused by excessive working power density or unstable voltage during use. The thermal efficiency before optimization can only reach about 90% under normal conditions, and the thermal efficiency after optimization can reach about 95% under normal use.

[0017] Before the optimization, the product needed to be formed in three steps and the cold end length was 90MM. It was easy to scratch the tube surface, and the guide rod bending tube at the cold end was easy to hit the tube wall, and the magnesium powder was loose. After the optimization, the product adopted the latest computer-programmed six-axis servo motor advanced tube bending machine for one-time forming, with accurate size and uniform speed. It greatly reduces the phenomenon of the guide rod deviating and hitting the tube wall due to the scratching of the tube surface and the loosening of magnesium powder during the bending process, and saves labor costs, thereby avoiding the occurrence of quality problems such as rust caused by scratching the tube surface and the guide rod hitting the wall at the cold end of the tube during the warranty period. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front structural schematic diagram of a double-layer mosquito-repellent incense-type electric heating tube of the utility model;

[0019] Figure 2 The utility model is a three-dimensional structural schematic diagram of a double-layer mosquito-repellent coil type electric heating tube. DETAILED DESCRIPTION

[0020] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail by way of example in the following paragraphs. The advantages and features of the present invention will become clearer according to the following description and claims.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] Example

[0023] See also Figure 1-2 As shown, a double-layer mosquito-repellent coil type electric heating tube comprises a first electric heating tube layer 1 bent in a mosquito-repellent coil shape, and a second electric heating tube layer 2 bent in a mosquito-repellent coil shape and arranged below the first electric heating tube layer 1. The end of the first electric heating tube layer 1 is connected to the end of the second electric heating tube layer 2 as a whole, and is bent in an arc shape at the connection. The first electric heating tube layer 1 and the second electric heating tube layer 2 are overlapped up and down, and there is a gap between the first electric heating tube layer 1 and the second electric heating tube layer 2.

[0024] The double-layer mosquito coil type electric heating tube adopts a double-layer structure, including a first electric heating tube layer 1 bent in the shape of a mosquito coil and a second electric heating tube layer 2 arranged thereunder. This design effectively increases the heating area, improves the heating efficiency, and ensures the uniform distribution of the water temperature in the water tank; the double-layer mosquito coil type electric heating tube adopts a mosquito coil-shaped bending design, so that the heat in the heating process can be more evenly transferred to the water tank, avoiding local overheating or excessive temperature difference, and improving heating uniformity.

[0025] Through the optimization of double-layer design and bending shape, the heating efficiency of the electric heating tube has been significantly improved, saving heating time and energy consumption; according to the actual needs of customers, we can carry out customized design, including parameters such as water tank size, number of electric heating tube layers and power, to ensure that the product is perfectly matched with the customer's drinking water equipment.

[0026] The head end of the first electric heating pipe layer 1 is connected to a first electric connector 3 , the head end of the second electric heating pipe layer 2 is connected to a second electric connector 4 , and the first electric connector 3 and the second electric connector 4 are arranged adjacent to each other.

[0027] By connecting the first and second electrical connectors 4 respectively, the two electric heating pipe layers can be independently controlled. This means that the heating power and heating time of each electric heating pipe layer can be individually controlled as needed to meet different usage scenarios and needs; since the two electric heating pipe layers can be independently controlled, their heating power and working time can be adjusted as needed to achieve the best heating effect and energy utilization. For example, when the temperature requirement is high, the power of the first electric heating pipe layer 1 can be increased, and when the temperature requirement is low, the power can be reduced to save energy.

[0028] The electrical joints arranged adjacent to each other ensure a balanced distribution of heating power between the first and second electric heating pipe layers 2. This helps to avoid local overheating or temperature differences caused by uneven heating, thereby ensuring the uniformity and stability of the heating effect; independent control of the two electric heating pipe layers can reduce the overall circuit load and circuit pressure, thereby improving the safety of the appliance. In addition, flexible adjustment of the heating power also helps to avoid safety hazards caused by overheating.

[0029] The first electric heating pipe layer 1 includes a first vertical section 11 connected to the first electrical connector 3, a first inner curved section 12 integrally formed with the first vertical section 11, and a lower curved section 13 integrally formed with the first inner curved section 12. The second electric heating pipe layer 2 includes a second vertical section 21 connected to the second electrical connector 4, a second inner curved section 22 integrally formed with the second vertical section 21, and an upper curved section 23 integrally formed with the second inner curved section 22.

[0030] By dividing the heating tube layer into different sections, including vertical sections and inner curved sections, the heating conduction path can be optimized. The vertical section helps to conduct heat from the end of the heating tube to other parts, while the inner curved section helps to adjust the heat conduction direction, thereby achieving more efficient heating; the inner curved section design can make better use of space, making the entire heating tube layer more compact during installation and layout, thereby saving space.

[0031] The vertical section and the inner curved section are formed in one piece, which can improve the stability and strength of the overall structure. Such a design can reduce the possibility of heat loss and structural looseness at the connection, and enhance the durability and reliability of the electric heating pipe layer; the one-piece design can simplify the manufacturing process of the electric heating pipe layer, reduce production costs and improve production efficiency; because each electric heating pipe layer contains a vertical section and an inner curved section, the heating elements can be distributed more evenly, thereby improving the heating uniformity and avoiding the problem of local overheating or uneven temperature.

[0032] The lower curved section 13 and the upper curved section 23 are symmetrical and connected as a whole. The first inner curved section 12 and the second inner curved section 22 have more than three curved circles. The first electrical connector 3 and the second electrical connector 4 are both provided with flange covers.

[0033] By making the lower curved section 13 and the upper curved section 23 symmetrical and connected as one, the structural stability of the electric heating pipe layer can be enhanced. This helps to ensure that the electric heating pipe layer will not be twisted or deformed during operation, thereby improving the uniformity and stability of heating; the number of bends of the first inner curved section 12 and the second inner curved section 22 is designed to be more than three, which can increase the length of the heating element, thereby increasing the heating area and improving the heating efficiency. This means that more heat can be conducted to the water tank, accelerating the heating process of the water.

[0034] By increasing the number of bends of the inner bending section, the length of the heat conduction path can be increased, so that the heat can be more fully in contact with the water during the conduction process, thereby improving the heating efficiency and heating uniformity; the flange cover is provided on the first electrical connector 3 and the second electrical connector 4 to enhance the stability and sealing of the connection. This can effectively prevent heat leakage at the electrical connector, and also prevent foreign impurities from entering, ensuring the normal operation of the electric heating pipe layer; the design of the flange cover makes the installation and removal of the electrical connector more convenient, simplifies the maintenance process, and saves time and labor costs.

[0035] The above-mentioned embodiments of the utility model are not intended to limit the protection scope of the utility model, and the implementation methods of the utility model are not limited to these. All other various forms of modifications, replacements or changes made to the above-mentioned structure of the utility model based on the above-mentioned contents of the utility model, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the utility model, should fall within the protection scope of the utility model.

Claims

1. A double-layer mosquito coil type electric heating tube, characterized in that: The invention comprises a first electric heating tube layer bent in a mosquito coil shape, and a second electric heating tube layer bent in a mosquito coil shape and arranged below the first electric heating tube layer. The end of the first electric heating tube layer is connected to the end of the second electric heating tube layer as a whole and is bent in an arc shape at the connection point. The first electric heating tube layer and the second electric heating tube layer overlap each other, and there is a gap between the first electric heating tube layer and the second electric heating tube layer. The first electric heating tube layer comprises a first vertical section connected to a first electrical connector, a first inner curved section integrally formed with the first vertical section, and a lower curved section integrally formed with the first inner curved section. The second electric heating tube layer comprises a second vertical section connected to a second electrical connector, a second inner curved section integrally formed with the second vertical section, and an upper curved section integrally formed with the second inner curved section.

2. The double-layer mosquito coil type electric heating tube according to claim 1, characterized in that: The head end of the first electric heating tube layer is connected to a first electric connector, and the head end of the second electric heating tube layer is connected to a second electric connector.

3. The double-layer mosquito coil type electric heating tube as claimed in claim 2, characterized in that: The first electrical connector and the second electrical connector are arranged adjacent to each other.

4. The double-layer mosquito coil type electric heating tube according to claim 1, characterized in that: The lower curved section and the upper curved section are symmetrical in vertical direction and connected as a whole.

5. The double-layer mosquito coil type electric heating tube according to claim 1, characterized in that: The first inner curved section and the second inner curved section have more than three curved circles.

6. The double-layer mosquito coil type electric heating tube as claimed in claim 2, characterized in that: The first electrical connector and the second electrical connector are both provided with flange covers.

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