Circuit board mounting structure of electric hair drier

Abstract

The utility model belongs to the technical field of electric hair driers, and particularly relates to a circuit board installation structure of an electric hair drier, which comprises an electric hair drier shell, a circuit board and installation assembly is in threaded connection with the inside of an air duct of the electric hair drier shell, and the circuit board and installation assembly comprises a fixed support, a lower circuit board and an upper circuit board and is installed on a quick connection assembly. The quick connection assembly comprises a supporting pipe and a clamping pipe, the clamping pipe comprises an inner pipe body, the two ends of the inner pipe body are connected with a bottom plate and an elastic plate respectively, a clamping head is formed at the end of the elastic plate, the outer side of the inner pipe body and the outer side of the elastic plate are slidably sleeved with the supporting pipe, and the upper circuit board is clamped between the supporting pipe and the clamping head. And the fixed bracket and the lower circuit board are clamped between the supporting tube and the bottom plate. The clamping pipe can be quickly inserted into the fixing support, the lower circuit board and the upper circuit board, and the relative positions of the fixing support, the lower circuit board and the upper circuit board are stably clamped and fixed by matching with the supporting effect of the supporting pipe, so that the circuit boards and the mounting assembly are quickly assembled.

Description

Technical Field

[0001] The utility model belongs to the technical field of hair dryers, and in particular relates to a circuit board mounting structure of a hair dryer. Background Art

[0002] A hair dryer is a small household appliance commonly used by people to dry their hair. An existing hair dryer generally includes a handle with a wind tube supported on the handle. A fan for providing power to the fan blades is provided in the wind tube or in the handle. A heating device for heating the air is also provided in the wind tube. The hair dryer generally powers the fan by plugging in an electric plug, and then turns the fan on or off by a switch on the handle, thereby starting and shutting down the hair dryer.

[0003] In order to control each unit in the hair dryer, a circuit board is provided in the hair dryer or the handle. In the existing hair dryer, it is generally fixed in the hair dryer or the handle by screws. It is necessary to set a fixed bracket in the hair dryer or the handle, and then fix it by screws, which leads to low installation efficiency and high labor intensity. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a circuit board installation structure for a hair dryer, which solves the problem that the existing hair dryer circuit board is fixed in the hair dryer cylinder or the handle by screws, resulting in low installation efficiency and high labor intensity.

[0005] To achieve the above purpose, the utility model adopts the following technical solution: a circuit board mounting structure for a hair dryer, comprising a hair dryer housing, a circuit board and a mounting assembly being threadedly connected inside the air cylinder of the hair dryer housing, the circuit board and the mounting assembly comprising a fixed bracket, a lower circuit board, and an upper circuit board, the fixed bracket being threadedly connected to the hair dryer housing, the fixed bracket, the lower circuit board, and the upper circuit board being mounted on a quick-connect assembly, the quick-connect assembly comprising a support tube and a clamping tube, the clamping tube comprising an inner tube body, the inner tube body being slidably inserted into the fixed bracket, the lower circuit board, and the upper circuit board, the two ends of the inner tube body being respectively connected to a bottom plate and an elastic plate, the end of the elastic plate being formed with a clamping joint, the outer sides of the inner tube body and the elastic plate being slidably sleeved with a support tube, the upper circuit board being clamped between the support tube and the clamping joint, and the fixed bracket and the lower circuit board being clamped between the support tube and the bottom plate.

[0006] The beneficial effects of the utility model are as follows: the card tube can be quickly plugged into the fixed bracket, the lower circuit board and the upper circuit board, and the relative positions of the fixed bracket, the lower circuit board and the upper circuit board can be firmly fixed by the supporting effect of the support tube, so that the circuit board and the installation components can be quickly assembled.

[0007] In order to quickly insert the card tube on the fixed bracket, lower circuit board and upper circuit board;

[0008] As a further improvement of the above technical solution: the outer diameter of the elastic plate is the same as the outer diameter of the inner tube body, the number of the elastic plates is multiple and they are arranged around the axis of the inner tube body, and the elastic plate is an elastic arc-shaped plate structure.

[0009] The beneficial effect of this improvement is that during the process of the card connector being inserted into the through holes opened on the fixed bracket, the lower circuit board, and the upper circuit board, the card connector drives the elastic plate to generate elastic deformation under the extrusion of the inner wall of the hole, so as to squeeze into the inner side of the hole, enabling the card connection tube to be quickly inserted and installed on the fixed bracket, the lower circuit board, and the upper circuit board.

[0010] For firmly clamping and fixing the upper circuit board;

[0011] As a further improvement of the above technical solution: the card connector is an arc-shaped conical plate structure, and the outer diameter of the upper bottom of the card connector is equal to the outer diameter of the inner tube body.

[0012] The beneficial effect of this improvement is that the card connector can cooperate with the use of the support tube to stably clamp and fix the upper circuit board in the axial direction.

[0013] To further improve the stability of the clamping of the support tube and the card connection tube to the fixed bracket, the lower circuit board, and the upper circuit board;

[0014] As a further improvement of the above technical solution: one end of the bottom plate facing the card connector is provided with elastic support feet, and the elastic support feet are arc-shaped plate structures.

[0015] The beneficial effect of this improvement is that the elastic support feet can play a role of elastic support, tightly press on the fixed bracket and the lower circuit board, and push the support tube towards the direction of the card connector, so that the upper circuit board is firmly clamped.

[0016] To ensure the support stability of the elastic support feet;

[0017] As a further improvement of the above technical solution: the number of the elastic support feet is multiple, and they are equidistantly spaced around the axis of the inner tube body.

[0018] The beneficial effect of this improvement is that multiple elastic support feet can provide stable support for the fixed bracket and the lower circuit board.

[0019] To ensure the connection stability of the quick-connection component;

[0020] As a further improvement of the above technical solution: the number of the quick-connection components is multiple, and they are equidistantly spaced around the axis of the fixed bracket, the lower circuit board, and the upper circuit board.

[0021] The beneficial effect of this improvement is that multiple quick-connection components can stably connect the fixed bracket, the lower circuit board, and the upper circuit board.

[0022] The parts not involved in this device are the same as the prior art or can be implemented using the prior art. Description of the Drawings

[0023] Figure 1 is a sectional structure diagram of the present utility model;

[0024] Figure 2 is a structural schematic diagram of the circuit board and the mounting assembly in the present utility model;

[0025] Figure 3 is a sectional structure diagram of the circuit board and the mounting assembly in the present utility model;

[0026] Figure 4 is a structural schematic diagram of the quick-connect assembly in the present utility model;

[0027] In the figure: 1, hair dryer housing; 2, circuit board and mounting assembly; 3, fixed bracket; 31, buckle groove; 4, lower circuit board; 5, quick-connect assembly; 6, upper circuit board; 7, support tube; 8, clamping tube; 81, inner tube body; 82, elastic plate; 83, clamping joint; 84, bottom plate; 85, elastic support feet. Detailed Embodiments

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention.

[0029] Embodiment 1:

[0030] As Figure 1As shown in FIG. 4, a circuit board mounting structure of a hair dryer includes a hair dryer housing 1. A circuit board and mounting assembly 2 is threadedly connected inside the barrel of the hair dryer housing 1. The circuit board and mounting assembly 2 includes a fixing bracket 3, a lower circuit board 4, and an upper circuit board 6. The fixing bracket 3 is threadedly connected to the hair dryer housing 1. The fixing bracket 3, the lower circuit board 4, and the upper circuit board 6 are mounted on a quick-connecting assembly 5. The quick-connecting assembly 5 includes a support tube 7 and a clamping tube 8. The clamping tube 8 includes an inner tube body 81. The inner tube body 81 is slidably inserted on the fixing bracket 3, the lower circuit board 4, and the upper circuit board 6. Both ends of the inner tube body 81 are respectively connected with a bottom plate 84 and an elastic plate 82. The end of the elastic plate 82 is formed with a clamping head 83. The outer sides of the inner tube body 81 and the elastic plate 82 are slidably sleeved with the support tube 7. The upper circuit board 6 is clamped between the support tube 7 and the clamping head 83. The fixing bracket 3 and the lower circuit board 4 are clamped between the support tube 7 and the bottom plate 84. The clamping tube 8 can be quickly inserted on the fixing bracket 3, the lower circuit board 4, and the upper circuit board 6. With the supporting effect of the support tube 7, the relative positions of the fixing bracket 3, the lower circuit board 4, and the upper circuit board 6 are firmly clamped and fixed, enabling the circuit board and mounting assembly 2 to be quickly assembled. The outer diameter of the elastic plate 82 is the same as the outer diameter of the inner tube body 81. The number of the elastic plates 82 is multiple and they are arranged around the axis of the inner tube body 81. The elastic plate 82 is an elastic arc-shaped plate structure. During the process of the clamping head 83 being inserted into the through holes formed on the fixing bracket 3, the lower circuit board 4, and the upper circuit board 6, the clamping head 83 is squeezed by the inner wall of the hole, driving the elastic plate 82 to produce elastic deformation, so as to squeeze into the inner side of the hole, enabling the clamping tube 8 to be quickly inserted on the fixing bracket 3, the lower circuit board 4, and the upper circuit board 6. The clamping head 83 is an arc-shaped conical plate structure. The outer diameter of the upper bottom of the clamping head 83 is equal to the outer diameter of the inner tube body 81. The clamping head 83 can cooperate with the use of the support tube 7 to stably clamp the upper circuit board 6 in the axial direction. One end of the bottom plate 84 facing the clamping head 83 is provided with elastic support feet 85. The elastic support feet 85 are arc-shaped plate structures. The elastic support feet 85 can play an elastic support role, tightly pressing on the fixing bracket 3 and the lower circuit board 4, and pushing the support tube 7 towards the direction of the clamping head 83, so that the upper circuit board 6 is firmly clamped. The number of the elastic support feet 85 is multiple and they are equidistantly spaced around the axis of the inner tube body 81. The multiple elastic support feet 85 can provide stable support for the fixing bracket 3 and the lower circuit board 4. The number of the quick-connecting assemblies 5 is multiple and they are equidistantly spaced around the axis of the fixing bracket 3, the lower circuit board 4, and the upper circuit board 6. The multiple quick-connecting assemblies 5 can stably connect the fixing bracket 3, the lower circuit board 4, and the upper circuit board 6.

[0031] The working principle of this technical solution is as follows: First, place the fixed bracket 3 and the lower circuit board 4 in contact with each other so that the through holes preset on the fixed bracket 3 and the lower circuit board 4 are aligned. Then, insert the clamping pipe 8 onto the fixed bracket 3 and the lower circuit board 4. Next, slide the support pipe 7 onto the clamping pipe 8. Subsequently, place the upper circuit board 6 onto the clamping pipe 8 so that the support pipe 7 is clamped between the clamping head 83 and the support pipe 7. The fixed bracket 3 and the lower circuit board 4 are clamped between the elastic support feet 85 and the support pipe 7 to complete the composition of the circuit board and the mounting assembly 2. Then, rotate and screw the circuit board and the mounting assembly 2 as a whole into the air duct of the hair dryer housing 1 so that the fixed bracket 3 is threadedly connected to the hair dryer housing 1 to complete the installation and fixation of the circuit board and the mounting assembly 2.

[0032] It should be noted that in this article, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device.

[0033] In this article, specific examples are used to elaborate on the principle and implementation mode of the present invention. The description of the above examples is only used to help understand the method of the present invention and its core idea. The above is only the preferred implementation mode of the present invention. It should be pointed out that due to the limitation of literal expression, objectively there are infinite specific structures. For those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements, retouches or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, retouches, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, shall all be regarded as the protection scope of the present invention.

Claims

1. A circuit board mounting structure of a hair dryer, characterized in that: It includes a hair dryer housing (1), inside the barrel of the hair dryer housing (1) is threadedly connected with a circuit board and mounting assembly (2), the circuit board and mounting assembly (2) includes a fixing bracket (3), a lower circuit board (4), and an upper circuit board (6). The fixing bracket (3) is threadedly connected to the hair dryer housing (1), and the fixing bracket (3), the lower circuit board (4), and the upper circuit board (6) are mounted on a quick-connect assembly (5). The quick-connect assembly (5) includes a support tube (7) and a clamping tube (8). The clamping tube (8) includes an inner tube body (81), and the inner tube body (81) is slidably inserted onto the fixing bracket (3), the lower circuit board (4), and the upper circuit board (6). Both ends of the inner tube body (81) are respectively connected with a bottom plate (84) and an elastic plate (82). The end of the elastic plate (82) is formed with a clamping head (83). The outer side of the inner tube body (81) and the elastic plate (82) is slidably sleeved with the support tube (7). The upper circuit board (6) is clamped between the support tube (7) and the clamping head (83), and the fixing bracket (3) and the lower circuit board (4) are clamped between the support tube (7) and the bottom plate (84).

2. The circuit board mounting structure of a hair dryer according to claim 1, characterized in that: The outer diameter of the elastic plate (82) is the same as that of the inner tube body (81). The number of the elastic plates (82) is multiple and they are arranged around the axis of the inner tube body (81). The elastic plate (82) is an elastic arc-shaped plate structure.

3. The circuit board mounting structure of a hair dryer according to claim 1, characterized in that: The clamping head (83) is an arc-shaped tapered plate structure, and the outer diameter of the upper base of the clamping head (83) is equal to the outer diameter of the inner tube body (81).

4. The circuit board mounting structure of a hair dryer according to claim 1, wherein: One end of the bottom plate (84) facing the clamping head (83) is provided with an elastic support foot (85), and the elastic support foot (85) is an arc-shaped plate structure.

5. The circuit board mounting structure of a hair dryer according to claim 4, characterized in that: The number of the elastic support feet (85) is multiple, and they are equidistantly spaced around the axis of the inner tube body (81).

6. The circuit board mounting structure of a hair dryer according to claim 1, characterized in that: The number of the quick-connect assemblies (5) is multiple, and they are equidistantly spaced around the axis of the fixing bracket (3), the lower circuit board (4), and the upper circuit board (6).

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