Flat filament heating body assembly of hair drier
By using flat heating wire and support assembly design in the hair dryer, the problem of reducing heat in a traditional circular heating element in a low voltage environment is solved, achieving more efficient heating and more uniform heat dissipation.
Patent Information
- Application Number
- CN202421375760.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The traditional circular heating element reduces the heat generation in a low voltage environment, resulting in a longer heating time and uneven heat dissipation.
The flat heating wire and support assembly design is adopted. The heating wire position is fixed through the support frame, and the resistance area is increased through the flat heating wire, the resistance value is reduced, and the current and heat generation is increased.
In a low voltage environment, the flat heating element can maintain considerable heat generation, shorten the heating time, and achieve more uniform heat dissipation by increasing the heat dissipation surface area.
Smart Images
Figure CN222763997U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hair dryer heating elements, in particular to a flat wire heating element component of a hair dryer. Background Art
[0002] The heating element is a key component in a hair dryer. It is usually made of heating materials and is used to generate heat. It heats the surrounding air through the resistive thermal effect generated when current is passed through, thereby realizing the heating function of the hair dryer.
[0003] The traditional heating element is composed of a circular heating element in cross section. When in use, it is first energized. The current passing through the heating wire will produce a resistance thermal effect, causing the heating wire itself to be heated. This heated heating wire will conduct heat to the surrounding air, thereby heating the air. When heating is performed by a heating wire with a circular cross section, the heat generated by the heating wire is calculated according to Joule's law Q=I 2 Rt, Ohm's law I = U / R, it can be seen that when the voltage decreases, the heat generated by the heating wire will decrease, and the temperature rise time of the heating wire will be longer. Utility Model Content
[0004] The utility model aims to provide a flat wire heating element assembly for a hair dryer to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flat wire heating element assembly of a hair dryer, comprising an annular inner shell, the outer wall of the annular inner shell is provided with a heating wire, the heating wire is arranged in a flat shape, the outer wall of the annular inner shell is provided with a supporting assembly for fixing the position of the heating wire, the supporting assembly comprises a supporting frame, and the connection between the supporting frame and the annular inner shell is provided with an installation assembly for fixing the position of the supporting frame.
[0006] Preferably, a winding groove is opened on one side of the support frame, and the heating wire is inserted and connected inside the winding groove. A plurality of partition blocks for separating the heating wires are fixedly and symmetrically connected to the inner wall of one side of the winding groove.
[0007] Preferably, the horizontal longitudinal cross-section of the partition block is set to be a triangle.
[0008] Preferably, an annular frame is sleeved on the bottom of the annular inner shell, and a threading hole for threading is opened on the inner wall of the bottom end of the annular frame.
[0009] Preferably, the mounting assembly comprises a connecting block fixedly connected to a side of the support frame away from the winding groove, and one side of the connecting block is fixedly connected to a limiting block.
[0010] Preferably, the installation assembly further comprises a positioning block centrally and symmetrically fixedly connected to the outer wall of the annular inner shell, a connecting groove is provided on the top of the positioning block, and a limiting groove is provided on the inner wall on one side of the connecting groove.
[0011] Preferably, the connecting block is inserted and connected inside the connecting groove, and the limiting block is inserted and connected inside the limiting groove.
[0012] Preferably, the inner walls at the bottom ends of the connecting groove and the limiting groove are both provided with an adhesive layer for fixing the positions of the connecting block and the limiting block, and the connecting block and the limiting block are both arranged on the top of the adhesive layer.
[0013] Technical effects and advantages of the utility model:
[0014] The utility model adopts the design of a flat heating wire, a mounting assembly and a support frame, and fixes the position of the heating wire through the support frame. Compared with the heating wire with a circular cross-section, the flat heating wire increases the resistance area. According to Ohm's law, the resistance value and the current are inversely proportional. Increasing the resistance area can reduce the resistance value, thereby increasing the current. According to Joule's law, an increase in current will lead to an increase in heat generation, thereby increasing the heating speed of the heating wire in the same time under low voltage conditions. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the front structure of the utility model.
[0016] Figure 2 It is a partial front cross-sectional structural schematic diagram of the utility model.
[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the heating wire of the utility model.
[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model in top view.
[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the installation component of the utility model.
[0020] In the figure: 1. annular inner shell; 2. heating wire; 3. supporting assembly; 301. supporting frame; 302. winding groove; 303. separating block; 4. installing assembly; 401. positioning block; 402. connecting block; 403. limiting block; 404. connecting groove; 405. limiting groove; 406. adhesive layer; 5. annular frame; 6. threading hole. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] The utility model provides Figure 1-5 A flat wire heating element assembly of a hair dryer is shown, comprising an annular inner shell 1, the outer wall of the annular inner shell 1 is sleeved with a heating wire 2, the heating wire 2 is arranged in a flat shape, the outer wall of the annular inner shell 1 is provided with a supporting assembly 3 for fixing the position of the heating wire 2, the supporting assembly 3 comprises a supporting frame 301, a mounting assembly 4 for fixing the position of the supporting frame 301 is arranged at the connection between the supporting frame 301 and the annular inner shell 1, a winding groove 302 is opened on one side of the supporting frame 301, the heating wire 2 is inserted and connected inside the winding groove 302, a plurality of partition blocks 303 for separating the heating wire 2 are fixedly connected symmetrically to the center of the inner wall on one side of the winding groove 302, and the horizontal longitudinal section of the partition block 303 is arranged in a triangular shape.
[0023] It should be noted that the cross section of the annular inner shell 1 is set to be annular, and a circular plate adapted to the diameter of the annular inner ring is inserted and fixedly connected inside, and a mounting hole is opened on the plate. The heating wire 2 is a flat wire, and the heat generated by the heating wire 2 is Q=I according to Joule's law. 2 Rt, Ohm's law I = U / R, it can be known that when the voltage is low, the heat generated by the heating wire 2 will decrease, and the same temperature rise time of the heating wire 2 will be longer. According to the formula R = p×L÷S, increasing the area of the resistor can reduce the resistance value. According to Joule's law and Ohm's law, the resistance value decreases under the same voltage, the current increases, and the heat generation increases. In an environment with a voltage of 110V, the flat wire heating element can maintain a considerable heat generation. The laboratory comparative test of the flat wire heating element in a low voltage environment and the round heating element under a voltage of 220V shows that the heat generation of the flat wire heating element in the same time is equivalent to the heat generation of the round heating element under a voltage of 220V; the flat heating wire 2 has a larger contact area than the round heating element, which increases the heat dissipation surface area, and the heat brought out when the fan blows is more uniform
[0024] Specifically, an annular frame 5 is sleeved on the bottom of the annular inner shell 1 , and a threading hole 6 for threading is opened on the inner wall of the bottom end of the annular frame 5 .
[0025] It should be noted that the threading hole 6 is used to pass the wire on the heating wire 2. Through the design of the threading hole 6, the wire is restricted to avoid the situation where the wire shakes randomly.
[0026] Specifically, the installation component 4 includes a connecting block 402 fixedly connected to the side of the support frame 301 away from the winding groove 302, and a limiting block 403 is fixedly connected to one side of the connecting block 402. The installation component 4 also includes a positioning block 401 fixedly connected to the outer wall of the annular inner shell 1 with center symmetry. A connecting groove 404 is provided on the top of the positioning block 401, and a limiting groove 405 is provided on the inner wall of one side of the connecting groove 404. The connecting block 402 is inserted and connected inside the connecting groove 404, and the limiting block 403 is inserted and connected inside the limiting groove 405. The inner walls at the bottom of the connecting groove 404 and the limiting groove 405 are both provided with an adhesive layer 406 for fixing the positions of the connecting block 402 and the limiting block 403, and the connecting block 402 and the limiting block 403 are both arranged on the top of the adhesive layer 406.
[0027] It should be noted that the installation assembly 4 is used to disassemble and install the support frame 301 and the annular inner shell 1, the limit groove 405 is adapted to the limit block 403, the connection groove 404 is adapted to the connection block 402, and the horizontal longitudinal section of the limit groove 405 is larger than the horizontal longitudinal section of the connection groove 404. When the limit block 403 is inserted into the limit groove 405, the limit block 403 cannot pass through the connection groove 404 to pass through the limit groove 405. The positioning groove 405, thereby fixing the position of the support frame 301 by limiting the movement of the limit block 403; the adhesive layer 406 is set to be glue. When it is necessary to fix the limit block 403 inside the limit groove 405, first apply glue to the inside of the limit groove 405, or directly apply glue on the limit block 403, and then insert the limit block 403 into the inside of the limit groove 405, and fix the limit block 403 inside the limit groove 405 through the adhesive layer 406.
[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A flat wire heating element assembly for a hair dryer, comprising an annular inner shell (1), characterized in that: The outer wall of the annular inner shell (1) is sleeved with a heating wire (2), the heating wire (2) being arranged in a flat shape, the outer wall of the annular inner shell (1) is provided with a support assembly (3) for fixing the position of the heating wire (2), the support assembly (3) comprising a support frame (301), and a mounting assembly (4) for fixing the position of the support frame (301) is provided at the connection between the support frame (301) and the annular inner shell (1).
2. A flat wire heating element assembly for a hair dryer according to claim 1, characterized in that: A winding groove (302) is provided on one side of the support frame (301), and the heating wire (2) is inserted and connected inside the winding groove (302). A plurality of partition blocks (303) for partitioning the heating wires (2) are fixedly connected symmetrically to the inner wall of one side of the winding groove (302).
3. A flat wire heating element assembly for a hair dryer according to claim 2, characterized in that: The horizontal longitudinal cross section of the partition block (303) is arranged in a triangular shape.
4. The flat wire heating element assembly of a hair dryer according to claim 1, characterized in that: The bottom of the annular inner shell (1) is sleeved with an annular frame (5), and the inner wall of the bottom end of the annular frame (5) is provided with a threading hole (6) for threading.
5. The flat wire heating element assembly of a hair dryer according to claim 1, characterized in that: The mounting assembly (4) comprises a connection block (402) fixedly connected to a side of the support frame (301) away from the winding groove (302), and one side of the connection block (402) is fixedly connected to a limiting block (403).
6. A flat wire heating element assembly for a hair dryer according to claim 5, characterized in that: The mounting assembly (4) further comprises a positioning block (401) centrally and symmetrically fixedly connected to the outer wall of the annular inner shell (1); a connecting groove (404) is provided on the top of the positioning block (401); and a limiting groove (405) is provided on the inner wall of one side of the connecting groove (404).
7. A flat wire heating element assembly for a hair dryer according to claim 6, characterized in that: The connecting block (402) is inserted and connected inside the connecting groove (404), and the limiting block (403) is inserted and connected inside the limiting groove (405).
8. The flat wire heating element assembly of a hair dryer according to claim 7, characterized in that: The inner walls at the bottom ends of the connecting groove (404) and the limiting groove (405) are both provided with an adhesive layer (406) for fixing the positions of the connecting block (402) and the limiting block (403), and the connecting block (402) and the limiting block (403) are both arranged on the top end of the adhesive layer (406).