Pressurizing shell, heating assembly and electric hair drier

Abstract

The utility model relates to a pressurizing shell, a heating assembly and an electric hair drier, and belongs to the technical field of electric hair driers. The air outlet shell part is connected with the air inlet shell part in a clamped mode, and the air outlet shell part is provided with a first air outlet; the air guide shell penetrates through the air inlet shell, the air guide shell is connected with the air inlet shell in a clamped mode, a part of the air guide shell extends into the air outlet shell, a second air outlet is formed between the end, extending into the air outlet shell, of the air guide shell and the air outlet shell, and an air guide cavity is defined by the inner wall of the air inlet shell, the inner wall of the air outlet shell and the outer wall of the air guide shell; the air inlet, the air guide cavity, the second air outlet and the first air outlet are sequentially communicated. The shell is connected in a clamping mode, and mounting and dismounting are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of hair dryers, in particular to a pressurized shell, a heating component and a hair dryer. Background Art

[0002] The dry air blown by the hair dryer can make the moisture on the hair dry. However, the shell of the existing hair dryer is generally assembled by glue or screw connection, which is complicated to install and disassemble. It is not easy to repair the hair dryer after it is damaged, and the cost of repair is relatively high. The hair dryer is generally not repaired after it is damaged, resulting in a short service life of the hair dryer. Utility Model Content

[0003] Based on this, it is necessary to provide a pressurized shell, a heating component and a hair dryer to address the problem that the installation and disassembly of the hair dryer shell is relatively complicated.

[0004] A pressurized shell comprises: an air inlet shell component, the air inlet shell component is provided with an air inlet; an air outlet shell component, the air outlet shell component is clamped with the air inlet shell component, and the air outlet shell component is provided with a first air outlet; an air guide shell component, the air guide shell component is penetrated by the air inlet shell component, the air guide shell component is clamped with the air inlet shell component, a part of the air guide shell component extends into the air outlet shell component, a second air outlet is formed between one end of the air guide shell component extending into the air outlet shell component and the air outlet shell component, the inner wall of the air inlet shell component, the inner wall of the air outlet shell component and the outer wall of the air guide shell component are combined to form an air guide cavity, and the air inlet, the air guide cavity, the second air outlet and the first air outlet are connected in sequence.

[0005] The present application discloses a pressurized shell, which extends part of the air outlet shell into the air inlet shell, and the inner side of the air inlet shell is against the outer side of the air outlet shell, which increases the contact area between the air outlet shell and the air inlet shell, making the assembly of the air outlet shell and the air inlet shell more stable, and avoiding the air inlet shell from shaking during use and affecting the working performance. In addition, the air inlet shell can be quickly positioned to the installation position, saving installation time. The air outlet shell is snap-fitted with the air inlet shell, and the installation method of the air inlet shell and the air outlet shell is relatively simple, and the air outlet shell and the air inlet shell can be quickly assembled and disassembled. The air guide shell is inserted into the air inlet shell, and the air guide shell is snap-fitted with the air inlet shell, and the connection between the air inlet shell and the air guide shell is simple and convenient, and the installation accuracy is high. The pressurized shell of the present application is easy to install and disassemble, easy to maintain, and the pressurized shell has good firmness after installation, which improves the stability of the pressurized shell operation, and is worthy of promotion and use.

[0006] In one embodiment, one of the air inlet shell and the air outlet shell is provided with a first fastener, and the other of the air inlet shell and the air outlet shell is provided with a first clamping hole, the number of the first fastener and the first clamping hole is multiple and the number of the first fastener and the first clamping hole is the same, and the multiple first fasteners can be matched with the multiple first clamping holes one by one. Since the air outlet shell and the air inlet shell are respectively provided with the first fastener and the first clamping hole, and the first fastener and the first clamping hole are matched, the air outlet shell and the air inlet shell can be quickly connected, which can save the time required for assembly.

[0007] In one embodiment, one of the air inlet case and the air guide case is provided with a second fastener, and the other of the air inlet case and the air outlet case is provided with a second fastener hole, the number of the second fastener and the second fastener hole is multiple and the number of the second fastener and the second fastener hole is the same, and the multiple second fasteners can be matched with the multiple second fastener holes one by one. By providing the air inlet case and the air guide case with the second fastener and the second fastener hole respectively and matching the second fastener and the second fastener hole, the air inlet case and the air guide case can be quickly connected, and the connection stability is good.

[0008] In one embodiment, part of the air outlet casing extends into the air inlet casing, and the part of the air outlet casing extending into the air inlet casing is snap-fitted with the air inlet casing. By snap-fitting the part of the air outlet casing extending into the air inlet casing with the air inlet casing, the air inlet casing and the air outlet casing are installed in a relatively simple manner, and the air outlet casing and the air inlet casing can be quickly assembled and disassembled.

[0009] In one embodiment, the air outlet shell comprises an air outlet shell, a decorative shell and a magnetic sleeve ring, a part of the air outlet shell extends into the air inlet shell, a first snap fastener is formed on the air outlet shell, the first snap fastener is used to snap with the air inlet shell, the second air outlet is formed between the air outlet shell and the air guide shell, the decorative shell is arranged on the air outlet shell, the decorative shell is provided with the first air outlet, and the magnetic sleeve ring is arranged on the air outlet shell and / or the decorative shell. By snapping the first snap fastener with the air inlet shell, the connection mode between the air inlet shell and the air outlet shell is relatively simple, easy to operate, and the connection efficiency can be improved. By extending part of the air outlet shell into the air inlet shell, the connection between the air inlet shell and the air outlet shell is more stable. By setting the magnetic sleeve ring on the air inlet shell and / or the air outlet shell, it is possible to reduce the entry of fine particles such as external dust into the installation cavity. Moreover, the pressurized shell is overall coordinated and beautiful, which is conducive to improving the user's recognition of the product.

[0010] In one of the embodiments, the air guide shell member includes a second clip and an air guide shell body, the air guide shell body is inserted into the air inlet shell member, a portion of the air guide shell body extends into the air outlet shell member, a through channel is formed on the inner side of the air guide shell body, the through channel is connected to the first air outlet, the number of the second clips is multiple, the multiple second clips are arranged on the air guide shell body at intervals, and the second clip is snapped with the air inlet shell member. A through channel is formed through the inner side of the air guide shell body, the through channel is connected to the first air outlet, and the wind delivered to the through channel can be output to the outside of the hair dryer through the first air outlet. By setting the number of the second clips to be multiple, the multiple second clips are all snapped with the air inlet shell member, and the connection stability between the air guide shell member and the air inlet shell member is good.

[0011] In one embodiment, a third fastener is formed at one end of the air inlet housing close to the air outlet housing, the air outlet housing is provided with a first slot, and the third fastener is matched with the first slot. The air inlet housing and the air outlet housing are provided with the third fastener and the first slot respectively, and the third fastener is matched with the first slot, so that the air inlet housing can be quickly positioned during assembly. Moreover, the connection between the air inlet housing and the air outlet housing is more stable.

[0012] In one embodiment, the cross-sectional area of ​​the air guide cavity is at least partially gradually reduced in the direction close to the second air outlet. By gradually reducing the cross-sectional area of ​​the air guide cavity at least partially in the direction close to the second air outlet, the wind pressure can be automatically increased while the amount of air transported through the air guide cavity remains unchanged, so that the pressure of the air blown out by the pressurized housing is higher, which can enable the user to dry the hair faster.

[0013] A heating component, the heating component comprising: a pressurized shell; a protective shell, the protective shell is sleeved on the air guide shell; a heating wire assembly, the heating wire assembly is arranged on the protective shell, the heating wire assembly is at least partially located in the air guide cavity, and the heating wire assembly is arranged around the protective shell.

[0014] In one embodiment, the heating wire assembly is arranged on the protective shell and located in the air guide cavity, so that the heating wire assembly can heat the cold air passing through the air guide cavity. The heating wire assembly is arranged around the protective shell, so that the heating wire assembly heats the cold air more fully. The provision of the protective shell can reduce the heat loss of the heating wire assembly.

[0015] In one embodiment, the protective shell includes a protective shell body and a support member, the protective shell body is sleeved on the air guide shell member, the number of the support members is multiple, and the multiple support members are sequentially spaced along the outer surface of the protective shell body, the support member is provided with a support hole, and the support holes of two adjacent support members are relatively arranged, the heating wire assembly is arranged on the support member and the heating wire assembly is at least partially located at the support hole. By sleeved on the air guide shell member by the protective shell body, the protective shell body is not easy to fall off. By sequentially spaced along the outer surface of the protective shell body by multiple support members, the heating wire assembly arranged on the support member has a good fixing effect, and the heating wire assembly can stably output heat to convert cold air into hot air. By at least partially locating the heating wire assembly at the support hole, the heating wire assembly is more stably arranged on the support member.

[0016] In one embodiment, the support member includes a support plate and a block, the support plate is arranged on the protective shell body, the number of the blocks is multiple, and multiple blocks are arranged on the support plate, the block is located on the side of the support plate away from the support hole, and the outer surface of the air guide shell is provided with a second slot, and the block is adapted to the second slot. The block of the support member is adapted to the second slot of the air guide shell, so that the heating component is connected to the pressurized shell, which can prevent the heating component from moving relative to the pressurized shell, and the heating component and the pressurized shell have good installation firmness. The block is arranged on the support plate, so that the connection effect is good and it is not easy to get loose.

[0017] A hair dryer comprises: a shell assembly, the shell assembly is provided with a first installation cavity and a second installation cavity, the first installation cavity and the second installation cavity are connected; a heating assembly, the heating assembly is arranged on the shell assembly and located in the first installation cavity; a fan assembly, the fan assembly is arranged on the shell assembly, the fan assembly is located in the second installation cavity, and the fan assembly is used to generate a negative pressure airflow toward the heating assembly.

[0018] The third aspect of the present application discloses a hair dryer, which can convert cold air into hot air output through a heating component. The fan component is arranged on the housing component, and the fan component can generate negative pressure airflow and transport it to the heating component for heating to form hot air. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional diagram of a pressurized housing;

[0020] Figure 2 is a cross-sectional view of a pressurized shell;

[0021] Figure 3 is a first exploded view of the pressurized shell;

[0022] Figure 4 is a second exploded view of the pressurized shell;

[0023] Figure 5 is a three-dimensional diagram of an air inlet shell;

[0024] Figure 6 is a cross-sectional view of a heating component;

[0025] Figure 7 It is a three-dimensional diagram of the heating wire assembly and the protective shell;

[0026] Figure 8 A three-dimensional diagram of a hair dryer;

[0027] Fig. 9 A cross-sectional view of a hair dryer.

[0028] The corresponding relationship between the reference numerals and the component names is as follows:

[0029] 1 air inlet housing, 11 third fastener, 101 air inlet, 102 first fastening hole, 103 second fastening hole;

[0030] 2 air outlet shell, 21 first buckle, 22 air outlet shell, 23 decorative shell, 24 magnetic sleeve, 201 first air outlet, 202 second air outlet, 203 air guide cavity, 204 first slot;

[0031] 3 air guide housing body, 31 second buckle piece, 32 air guide housing body, 301 second slot;

[0032] 4. Heating wire assembly;

[0033] 5 protective shell, 51 protective shell body, 52 support member, 521 support plate, 522 block, 501 support hole;

[0034] 100 housing assembly, 1001 first installation cavity, 1002 second installation cavity;

[0035] 200 heating components;

[0036] 300 fan components. DETAILED DESCRIPTION

[0037] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0039] Example 1

[0040] like Figure 1-4 As shown, the present embodiment discloses a pressurized shell, comprising: an air inlet shell 1, wherein the air inlet shell 1 is provided with an air inlet 101; an air outlet shell 2, wherein the air outlet shell 2 is snap-connected with the air inlet shell 1, and the air outlet shell 2 is provided with a first air outlet 201; an air guide shell 3, wherein the air guide shell 3 is penetrated by the air inlet shell 1, and the air guide shell 3 is snap-connected with the air inlet shell 1, and a part of the air guide shell 3 extends into the air outlet shell 2, and a second air outlet 202 is formed between one end of the air guide shell 3 extending into the air outlet shell 2 and the air outlet shell 2, the inner wall of the air inlet shell 1, the inner wall of the air outlet shell 2 and the outer wall of the air guide shell 3 are combined to form an air guide cavity 203, and the air inlet 101, the air guide cavity 203, the second air outlet 202 and the first air outlet 201 are sequentially connected.

[0041] The present application discloses a pressurized shell, wherein the part of the air outlet shell 2 extends into the air inlet shell 1, and the inner side of the air inlet shell 1 abuts against the outer side of the air outlet shell 2, thereby increasing the contact area between the air outlet shell 2 and the air inlet shell 1, making the assembly of the air outlet shell 2 and the air inlet shell 1 more stable, and preventing the air inlet shell 1 from shaking during use and affecting the working performance. Moreover, the air inlet shell 1 can be quickly positioned to the installation position, saving installation time. The air outlet shell 2 is snap-fitted with the air inlet shell 1, and the installation method of the air inlet shell 1 and the air outlet shell 2 is relatively simple, and the air outlet shell 2 and the air inlet shell 1 can be quickly assembled and disassembled. The air guide shell 3 is inserted into the air inlet shell 1, and the air guide shell 3 is snap-fitted with the air inlet shell 1, and the connection between the air inlet shell 1 and the air guide shell 3 is simple and convenient, and the installation accuracy is high. The pressurized shell of the present application is easy to install and disassemble, easy to maintain, and the pressurized shell has good firmness after installation, which improves the stability of the pressurized shell work, and is worthy of promotion and use.

[0042] like Figure 3 and Figure 4As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: one of the air inlet shell member 1 and the air outlet shell member 2 is provided with a first fastener 21, and the other of the air inlet shell member 1 and the air outlet shell member 2 is provided with a first clamping hole 102, the number of the first fastener 21 and the first clamping hole 102 is multiple and the number of the first fastener 21 and the first clamping hole 102 is the same, and the multiple first fasteners 21 can be matched with the multiple first clamping holes 102 one by one. Since the air outlet shell member 2 and the air inlet shell member 1 are respectively provided with the first fastener 21 and the first clamping hole 102, and the first fastener 21 and the first clamping hole 102 are matched, the air outlet shell member 2 and the air inlet shell member 1 can be quickly connected, which can save the time required for assembly.

[0043] like Figure 3 and Figure 4 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: one of the air inlet housing 1 and the air guide housing 3 is provided with a second fastener 31, and the other of the air inlet housing 1 and the air outlet housing 2 is provided with a second clamping hole 103, the number of the second fastener 31 and the second clamping hole 103 is multiple and the number of the second fastener 31 and the second clamping hole 103 is the same, and the multiple second fasteners 31 can be matched with the multiple second clamping holes 103 one by one. By providing the second fastener 31 and the second clamping hole 202 respectively on the air inlet housing 1 and the air guide housing 3 and matching the second fastener 31 and the second clamping hole 202, the air inlet housing 1 and the air guide housing 3 can be quickly connected, and the connection stability is good.

[0044] like Figure 2 As shown, in addition to the features of the above embodiment, this embodiment further defines that: a portion of the air outlet casing 2 extends into the air inlet casing 1, and the portion of the air outlet casing 2 extending into the air inlet casing 1 is snap-fitted with the air inlet casing 1. By snap-fitting the portion of the air outlet casing 2 extending into the air inlet casing 1 with the air inlet casing 1, the installation method of the air inlet casing 1 and the air outlet casing 2 is relatively simple, and the air outlet casing 2 and the air inlet casing 1 can be quickly assembled and disassembled.

[0045] like Figure 2 , Figure 3 and Figure 4As shown, in addition to the features of the above embodiment, this embodiment further defines that: the air outlet housing 2 includes an air outlet housing 22, a decorative housing 23 and a magnetic suction ring 24, a portion of the air outlet housing 22 extends into the air inlet housing 1, a first snap fastener 21 is formed on the air outlet housing 22, the first snap fastener 21 is used to snap with the air inlet housing 1, the second air outlet 202 is formed between the air outlet housing 22 and the air guide housing 3, the decorative housing 23 is arranged on the air outlet housing 22, the decorative housing 23 is provided with the first air outlet 201, and the magnetic suction ring 24 is arranged on the air outlet housing 22 and / or the decorative housing 23. By snapping the first snap fastener 21 with the air inlet housing 1, the connection method of the air inlet housing 1 and the air outlet housing 2 is relatively simple, easy to operate, and the connection efficiency can be improved. By partially extending the air outlet housing 22 into the air inlet housing 1, the connection between the air inlet housing 1 and the air outlet housing 2 is more stable. The magnetic ring 24 is arranged on the air outlet housing 22 and / or the decorative housing 23, which can reduce the entry of small particles such as external dust into the installation cavity 101. In addition, the pressurized housing is overall coordinated and beautiful, which is conducive to improving user recognition of the product.

[0046] like Figure 2 , Figure 3 and Figure 4 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the air guide housing 3 includes a second snap-fitting part 31 and an air guide housing body 32, the air guide housing body 32 is arranged through the air inlet housing 1, a part of the air guide housing body 32 extends into the air outlet housing 2, a through passage is formed on the inner side of the air guide housing body 32, the through passage is connected to the first air outlet 201, the number of the second snap-fitting parts 31 is multiple, the multiple second snap-fitting parts 31 are arranged on the air guide housing body 32 at intervals, and the second snap-fitting part 31 is snap-fitted with the air inlet housing 1. A through passage is formed on the inner side of the air guide housing body 32, the through passage is connected to the first air outlet 201, and the wind delivered to the through passage can be output to the outside of the hair dryer through the first air outlet 201. By setting the number of the second snap-fitting parts 31 to be multiple, the multiple second snap-fitting parts 31 are all snap-fitted with the air inlet housing 1, and the connection stability between the air guide housing 3 and the air inlet housing 1 is good.

[0047] like Figure 2 and Figure 5As shown, in addition to the features of the above embodiment, this embodiment further defines that: the air inlet housing 1 forms a third fastener 11 at one end close to the air outlet housing 2, the air outlet housing 2 is provided with a first fastener 204, and the third fastener 11 is adapted to the first fastener 204. The air inlet housing 1 and the air outlet housing 2 are provided with the third fastener 11 and the first fastener 204 respectively, and the third fastener 11 is adapted to the first fastener 204, so that the air inlet housing 1 can be quickly positioned during assembly. Moreover, the connection between the air inlet housing 1 and the air outlet housing 2 is more stable.

[0048] like Figure 2 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the area of ​​the cross section of the air guide cavity 203 is gradually reduced in the direction close to the second air outlet 202. By gradually reducing the area of ​​the cross section of the air guide cavity 203 in the direction close to the second air outlet 202, the wind pressure can be automatically increased while the amount of air transported through the air guide cavity 203 remains unchanged, so that the pressure of the wind blown out by the pressurized housing is higher, which can enable the user to dry the hair faster.

[0049] Example 2

[0050] like Figure 6-7 As shown, this embodiment discloses a heating component, which includes: a pressurized shell; a protective shell 5, which is sleeved on the air guide shell 3; a heating wire assembly 4, which is arranged on the protective shell 5, and the heating wire assembly 4 is at least partially located in the air guide cavity 203, and the heating wire assembly 4 is arranged around the protective shell 5.

[0051] The second aspect of the present application discloses a heating assembly, wherein the heating wire assembly 4 is arranged on the protective shell 5 and is located in the air guide cavity 203, so that the heating wire assembly 4 can heat the cold air passing through the air guide cavity 203. The heating wire assembly 4 is arranged around the protective shell 5, so that the heating wire assembly 4 heats the cold air more fully. The setting of the protective shell 5 can reduce the heat loss of the heating wire assembly 4.

[0052] like Figure 6 and Figure 7As shown, in addition to the features of the above embodiment, this embodiment further defines that: the protective shell 5 includes a protective shell body 51 and a support member 52, the protective shell body 51 is sleeved on the air guide shell 3, the number of the support members 52 is multiple, and the multiple support members 52 are sequentially spaced along the outer surface of the protective shell body 51, the support member 52 is provided with a support hole 501, and the support holes 501 of two adjacent support members 52 are arranged oppositely, and the heating wire assembly 4 is arranged on the support member 52 and the heating wire assembly 4 is at least partially located at the support hole 501. By sleeved on the air guide shell 3 by the protective shell body 51, the protective shell body 51 is not easy to fall off. By sequentially spaced along the outer surface of the protective shell body 51 by multiple support members 52, the fixing effect of the heating wire assembly 4 arranged on the support member 52 is good, and the heating wire assembly 4 can stably output heat to convert cold air into hot air. By at least partially being located at the support hole 501, the heating wire assembly 4 is more stably arranged on the support member 52.

[0053] like Figure 6 and Figure 7 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the support member 52 includes a support plate 521 and a block 522, the support plate 521 is arranged on the protective shell body 51, the number of the block 522 is multiple, and multiple blocks 522 are arranged on the support plate 521, and the block 522 is located on the side of the support plate 521 away from the support hole 501, and the outer surface of the air guide shell 3 is provided with a second slot 301, and the block 522 is adapted to the second slot 301. By adapting the block 522 of the support member 52 to the second slot 301 of the air guide shell 3, the heating component is connected to the pressurized shell, which can prevent the heating component from moving relative to the pressurized shell, and the heating component and the pressurized shell have good installation firmness. The block 522 is arranged on the support plate 521, so that the connection effect is good and it is not easy to loosen.

[0054] Example 3

[0055] like Figure 8 and Fig. 9 As shown, this embodiment discloses a hair dryer, including: a shell component 100, the shell component 100 is provided with a first installation cavity 1001 and a second installation cavity 1002, the first installation cavity 1001 and the second installation cavity 1002 are connected; a heating component 200, the heating component 200 is arranged on the shell component 100 and is located in the first installation cavity 1001; a fan component 300, the fan component 300 is arranged on the shell component 100, the fan component 300 is located in the second installation cavity 1002, and the fan component 300 is used to generate a negative pressure airflow toward the heating component 200.

[0056] The third aspect of the present application discloses a hair dryer that can convert cold air into hot air output through a heating component 300. The fan component 300 is arranged on the housing component 100, and the fan component 300 can generate negative pressure airflow and transport it to the heating component 300 for heating to form hot air.

[0057] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A pressurized housing, characterized in that: include: An air inlet casing (1), wherein the air inlet casing (1) is provided with an air inlet (101); An air outlet casing (2), the air outlet casing (2) being snap-connected with the air inlet casing (1), and the air outlet casing (2) being provided with a first air outlet (201); An air guide casing (3), wherein the air guide casing (3) is inserted into the air inlet casing (1), the air guide casing (3) is snap-connected with the air inlet casing (1), a portion of the air guide casing (3) extends into the air outlet casing (2), a second air outlet (202) is formed between one end of the air guide casing (3) extending into the air outlet casing (2) and the air outlet casing (2), the inner wall of the air inlet casing (1), the inner wall of the air outlet casing (2) and the outer wall of the air guide casing (3) are combined to form an air guide cavity (203), and the air inlet (101), the air guide cavity (203), the second air outlet (202) and the first air outlet (201) are sequentially connected.

2. The pressurized housing according to claim 1, characterized in that One of the air inlet casing (1) and the air outlet casing (2) is provided with a first fastener (21), and the other of the air inlet casing (1) and the air outlet casing (2) is provided with a first fastener hole (102), the number of the first fasteners (21) and the first fastener holes (102) is multiple and the number of the first fasteners (21) and the first fastener holes (102) is the same, and the multiple first fasteners (21) can be matched with the multiple first fastener holes (102) one by one; and / or one of the air inlet casing (1) and the air guide casing (3) is provided with a second fastener (31), and the other of the air inlet casing (1) and the air outlet casing (2) is provided with a second fastener hole (103), the number of the second fasteners (31) and the number of the second fastener holes (103) are multiple and the number of the second fasteners (31) and the number of the second fastener holes (103) are the same, and the multiple second fasteners (31) can be matched with the multiple second fastener holes (103) one by one; And / or part of the air outlet casing (2) extends into the air inlet casing (1), and the part of the air outlet casing (2) extending into the air inlet casing (1) is snap-connected with the air inlet casing (1).

3. The pressurized housing according to claim 1, characterized in that The air outlet shell (2) comprises an air outlet shell (22), a decorative shell (23) and a magnetic sleeve (24); a portion of the air outlet shell (22) extends into the air inlet shell (1); a first snap-fitting component (21) is formed on the air outlet shell (22); the first snap-fitting component (21) is used for snapping with the air inlet shell (1); the second air outlet (202) is formed between the air outlet shell (22) and the air guide shell (3); the decorative shell (23) is arranged on the air outlet shell (22); the decorative shell (23) is provided with the first air outlet (201); and the magnetic sleeve (24) is arranged on the air outlet shell (22) and / or the decorative shell (23).

4. The pressurized housing according to claim 1, wherein: The air guide shell component (3) comprises a second snap-fit ​​component (31) and an air guide shell body (32); the air guide shell body (32) is inserted into the air inlet shell component (1); a portion of the air guide shell body (32) extends into the air outlet shell component (2); a through passage is formed on the inner side of the air guide shell body (32); the through passage is connected to the first air outlet (201); there are a plurality of second snap-fit ​​components (31); a plurality of second snap-fit ​​components (31) are arranged at intervals on the air guide shell body (32); and the second snap-fit ​​components (31) are snap-fitted to the air inlet shell component (1).

5. The pressurized housing according to claim 1, characterized in that A third snap-fitting component (11) is formed at one end of the air inlet casing (1) close to the air outlet casing (2), the air outlet casing (2) is provided with a first snap-fitting groove (204), and the third snap-fitting component (11) is adapted to the first snap-fitting groove (204).

6. The pressurized housing according to claim 1, characterized in that The area of ​​the cross section of the air guiding cavity (203) at least partially decreases gradually in a direction approaching the second air outlet (202).

7. A heating component, characterized in that: The heating assembly comprises: The pressurized housing according to any one of claims 1 to 6; A protective shell (5), wherein the protective shell (5) is sleeved on the air guide shell (3); A heating wire assembly (4), wherein the heating wire assembly (4) is arranged on the protective shell (5), the heating wire assembly (4) is at least partially located in the air guide cavity (203), and the heating wire assembly (4) is arranged around the protective shell (5).

8. The heating assembly according to claim 7, characterized in that The protective shell (5) comprises a protective shell body (51) and a support member (52); the protective shell body (51) is sleeved on the air guide shell member (3); there are a plurality of support members (52); the plurality of support members (52) are sequentially spaced along the outer surface of the protective shell body (51); the support members (52) are provided with support holes (501); the support holes (501) of two adjacent support members (52) are arranged opposite to each other; the heating wire assembly (4) is arranged on the support member (52) and at least a portion of the heating wire assembly (4) is located at the support hole (501).

9. The heating assembly according to claim 8, characterized in that The support member (52) comprises a support plate (521) and a block (522); the support plate (521) is arranged on the protective shell body (51); there are a plurality of blocks (522); a plurality of blocks (522) are arranged on the support plate (521); the block (522) is located on a side of the support plate (521) away from the support hole (501); a second slot (301) is provided on the outer surface of the air guide shell member (3); and the block (522) is adapted to fit the second slot (301).

10. A hair dryer, characterized in that: include: A housing assembly (100), wherein the housing assembly (100) is provided with a first installation cavity (1001) and a second installation cavity (1002), wherein the first installation cavity (1001) and the second installation cavity (1002) are in communication; The heating component (200) according to any one of claims 7 to 9, wherein the heating component (200) is arranged on the housing component (100) and is located in the first mounting cavity (1001); A fan assembly (300), wherein the fan assembly (300) is arranged on the housing assembly (100), the fan assembly (300) is located in the second installation cavity (1002), and the fan assembly (300) is used to generate a negative pressure airflow that is transported toward the heating assembly (200).

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