Hair drier head with heat insulation ring cavity and air drier

Abstract

The utility model relates to the technical field of hair driers, and provides a hair dryer head with a heat insulation ring cavity and a hair dryer, the hair dryer head comprises: a first shell, the first shell is provided with a ring-shaped air outlet; the heating device comprises a heating supporting piece and fixing pieces, the fixing pieces are arranged on the periphery of the heating supporting piece at intervals, and the fixing pieces are used for supporting a heating wire; the heat insulation cover is annularly arranged on the heating device in a sleeving manner around the periphery of the heating device; the heat insulation cover is clamped in the first shell, and a heat insulation ring cavity is formed between the heat insulation cover and the first shell. The hair dryer comprises the hair dryer head. According to the air blower, the heat insulation ring cavity is arranged, heat transfer between the heat insulation cover and the first shell is reduced, overheating of the first shell is avoided, the risk that a user is scalded when the air blower is used is reduced, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of hair dryers, and in particular to a hair dryer head with a heat-insulating ring cavity and a hair dryer. Background Art

[0002] At present, in order to dry hair as quickly as possible, a heating component is provided in the hair dryer to heat the airflow. However, in the prior art, the contact area between the heating component and the hair dryer housing is too large, which causes the heating component to transfer too much heat to the hair dryer housing while heating the airflow, thereby overheating the hair dryer housing. When a person accidentally touches the hair dryer housing, it is easy to cause damage, which seriously reduces the user experience. Utility Model Content

[0003] In order to solve the above problems, the present application provides a hair dryer head and a hair dryer with a heat-insulating ring cavity, which are cleverly designed and simple in structure. By providing the heat-insulating ring cavity, the heat transfer between the heat-insulating cover and the first shell is reduced, the overheating of the first shell is avoided, the risk of being burned when using the hair dryer is reduced, and the user experience is improved. The technical solutions adopted in the present application are as follows:

[0004] A hair dryer head with a heat-insulating ring cavity, comprising:

[0005] A first shell, wherein the first shell is provided with an annular air outlet; a heating device, wherein the heating device comprises a heating support and a fixing plate, wherein the fixing plates are arranged at intervals on the outer periphery of the heating support, and the fixing plate is used to support the heating wire; a heat insulation cover, wherein the heat insulation cover is annularly sleeved on the heating device around the outer periphery of the heating device; the heat insulation cover is clamped in the first shell, and a heat insulation ring cavity is provided between the heat insulation cover and the first shell.

[0006] The clamping connection between the heat insulation cover and the first shell facilitates the installation of the heat insulation cover, thereby improving the assembly efficiency of both the heat insulation cover and the first shell; by providing the heat insulation ring cavity, the heat transfer between the heat insulation cover and the first shell is reduced, overheating of the first shell is avoided, the risk of burns when using the hair dryer is reduced, and the user experience is improved.

[0007] In some embodiments, an annular protrusion is provided in the first shell near the annular air outlet, and the outer periphery of one end of the heat insulation cover is clamped to the inner side of the annular protrusion to form the heat insulation ring cavity between the heat insulation cover and the first shell.

[0008] An annular protrusion is provided to support the heat insulation cover so as to isolate the heat insulation cover from the first shell; the airflow is blown out from the annular air outlet after being heated, so the portion of the first shell close to the annular air outlet generally has a higher temperature, and the annular protrusion contacts the heat insulation cover, so the temperature of the annular protrusion will also be higher. The annular protrusion is arranged close to the annular air outlet, that is, the portions with higher temperatures on the first shell are concentrated, which greatly reduces the risk of touching the portions with higher temperatures of the first shell when using the hair dryer.

[0009] In some embodiments, the inner side of the annular protrusion is a slope, and the slope gradually approaches the heat insulation cover along a direction approaching the annular air outlet.

[0010] By setting the inner side of the annular protrusion as a slope, the slope can guide the installation of the heat insulation cover, making it easier to install the heat insulation cover. In addition, the setting of the slope facilitates demoulding of the first shell after injection molding.

[0011] In some embodiments, the corners of the annular protrusion are rounded.

[0012] By setting the corner of the annular protrusion as a rounded corner, on the one hand, the injection molding quality of the annular protrusion can be ensured and demoulding of the first shell after injection molding can be facilitated; on the other hand, the rounded corner plays a role of smooth transition and can guide the installation of the heat insulation cover.

[0013] In some embodiments, a first annular shoulder is provided in the first shell near the annular air outlet, and an end of one end of the heat insulation cover abuts against the first shoulder.

[0014] By setting the first shoulder, the heat insulation cover can be limited. When the heat insulation cover abuts against the first shoulder, it cannot continue to move closer to the annular air outlet. At this time, it indicates that the heat insulation cover has been installed in place, which improves the installation efficiency of the heat insulation cover.

[0015] In some embodiments, a lug is provided at one end of the fixing plate near the annular air outlet, and the lug extends in a direction away from the axis of the heating support member; a slot adapted to the lug is provided at one end of the heat insulation cover near the annular air outlet, and the lug is engaged with the slot and abuts against the first shoulder at the same time.

[0016] By arranging a lug on the fixing plate and a slot on the heat insulation cover, the heat insulation cover can press the lug when the heat insulation cover abuts against the first shoulder, and the lug is clamped in the space enclosed by the slot and the first shoulder, thereby playing a certain fixing role for the entire heating device.

[0017] In some embodiments, the first shell includes a front cover and a rear cover, the annular air outlet and the annular protrusion are both provided on the front cover, and an annular groove and an annular plug are respectively provided at the ends of the front cover and the rear cover close to each other, and the annular plug is sealingly matched with the annular groove.

[0018] By providing an annular groove and an annular plug and making them seal together, on the one hand, the connection strength between the front cover and the rear cover can be ensured, making it difficult for the front cover and the rear cover to be separated; on the other hand, the sealing of the first shell can be ensured, making it difficult for the airflow to leak from the connection between the front cover and the rear cover.

[0019] In some embodiments, second shoulders are respectively provided on the inner and outer sides of the annular plug, and the notch edge of the annular groove abuts against the second shoulders.

[0020] By providing the second shoulder, on the one hand, the path length of the airflow leakage from the connection between the front cover and the rear cover can be increased, further reducing the risk of airflow leakage; on the other hand, the connection strength between the front cover and the rear cover can be improved.

[0021] In some embodiments, there is a preset distance between the rear cover and the heat insulation cover and the heating device.

[0022] By setting a preset distance between the back cover and the heat insulation cover and the heating device, that is, there is no contact between the back cover and the heat insulation cover and the heating device, the temperature of the back cover can be avoided to be too high. The parts of the first shell with too high temperature are distributed on the front cover, which will reduce the probability of touching the parts with too high temperature.

[0023] On the other hand, the present application provides a hair dryer, comprising the aforementioned hair dryer head.

[0024] The present application provides a hair dryer head with a heat-insulating ring cavity and a hair dryer, which have at least one of the following beneficial effects:

[0025] 1. The present application provides a hair dryer head with an insulating ring cavity, which facilitates the installation of the heat insulation cover by snapping the heat insulation cover and the first shell, thereby improving the assembly efficiency of the heat insulation cover and the first shell; by setting the insulating ring cavity, the heat transfer between the heat insulation cover and the first shell is reduced, the overheating of the first shell is avoided, the risk of burns when using the hair dryer is reduced, and the user experience is improved.

[0026] 2. The present application provides a hair dryer head with an insulating ring cavity, in which an annular protrusion is provided to support the heat insulation cover so as to isolate the heat insulation cover from the first shell. The airflow is blown out from the annular air outlet after being heated, so the portion of the first shell close to the annular air outlet generally has a higher temperature, and the temperature of the annular protrusion is also higher because the annular protrusion contacts the heat insulation cover. The annular protrusion is arranged close to the annular air outlet, that is, the portion with a higher temperature on the first shell is concentrated, which greatly reduces the risk of touching the portion with a higher temperature of the first shell when using the hair dryer.

[0027] 3. The application provides a hair dryer head with a heat insulation ring cavity, wherein the inner side of the annular protrusion is set as a slope, which can guide the installation of the heat insulation cover and facilitate the installation of the heat insulation cover. In addition, the setting of the slope facilitates demoulding of the first shell after injection molding.

[0028] 4. The present application provides a hair dryer head with an insulating ring cavity. By setting the corners of the annular protrusion to be rounded, on the one hand, the injection molding quality of the annular protrusion can be ensured and the demolding of the first shell after injection molding can be facilitated. On the other hand, the rounded corner plays a role of smooth transition and can guide the installation of the heat insulation cover.

[0029] 5. The present application provides a hair dryer head with an insulating ring cavity, which can limit the heat insulation cover by setting a first shoulder. When the heat insulation cover abuts against the first shoulder, it cannot continue to move closer to the annular air outlet. At this time, it indicates that the heat insulation cover has been installed in place, which improves the installation efficiency of the heat insulation cover.

[0030] 6. The present application provides a hair dryer head with an insulating ring cavity. By arranging a lug on the fixing plate and a slot on the heat insulation cover, the heat insulation cover can press the lug when the heat insulation cover abuts against the first shoulder, and the lug is clamped in the space formed by the slot and the first shoulder, thereby playing a certain fixing role for the entire heating device.

[0031] 7. The present application provides a hair dryer head with an insulating ring cavity. By setting an annular groove and an annular plug and making the two seal together, on the one hand, it can ensure the connection strength between the front cover and the rear cover, so that the front cover and the rear cover are not easy to separate; on the other hand, it can ensure the sealing of the first shell, so that the airflow is not easy to leak from the connection between the front cover and the rear cover.

[0032] 8. The present application provides a hair dryer head with an insulating ring cavity. By setting a second shoulder, on the one hand, the path length of the airflow leakage from the connection between the front cover and the rear cover can be increased to further reduce the risk of airflow leakage. On the other hand, the connection strength between the front cover and the rear cover can be improved.

[0033] 9. The present application provides a hair dryer head with an insulating ring cavity. By setting a preset distance between the back cover and the heat insulation cover and the heating device, that is, there is no contact between the back cover and the heat insulation cover and the heating device, the temperature of the back cover can be prevented from being too high. The parts of the first shell with too high temperature are distributed on the front cover, which reduces the probability of touching the parts with too high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The following will explain the preferred implementation mode in a clear and understandable manner in combination with the accompanying drawings, and further explain the above characteristics, technical features, advantages and implementation methods of a hair dryer head with a heat insulation ring cavity and a hair dryer:

[0035] Figure 1 is a schematic cross-sectional view of an embodiment of the present application;

[0036] Figure 2 yes Figure 1 An exploded schematic diagram of an embodiment;

[0037] Figure 3 This is a schematic diagram of the structure of the embodiment of the present application after the back cover is disassembled;

[0038] Figure 4 is an exploded schematic diagram of an embodiment of the present application;

[0039] Figure 5 yes Figure 4 Another perspective of an embodiment.

[0040] Description of Figure Numbers:

[0041] Annular air outlet 1, heating support 2, fixing plate 3, heat insulation cover 4, heat insulation ring cavity 5, annular protrusion 6, slope 7, fillet 8, first shoulder 9, lug 10, front cover 11, rear cover 12, annular groove 13, annular plug 14, second shoulder 15. DETAILED DESCRIPTION

[0042] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the specific implementation methods of the present application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0043] In order to simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0044] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0045] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0047] The present application provides a hair dryer head with a heat-insulating ring cavity, referring to Figure 1-Figure 3 , including a first shell, a heating device and a heat insulation cover 4, the first shell includes a front cover 11 and a rear cover 12, the front cover 11 is provided with an annular air outlet 1, and an annular protrusion 6 is provided in the front cover 11 near the annular air outlet 1; the heating device includes a heating support 2 and a fixing plate 3, the fixing plates 3 are arranged on the outer periphery of the heating support 2 at intervals, and the fixing plate 3 is used to support the heating wire; the heat insulation cover 4 is annularly sleeved on the heating device around the outer periphery of the heating device, the outer periphery of one end of the heat insulation cover 4 is clamped on the inner side of the annular protrusion 6, and a heat insulation ring cavity 5 is formed between the heat insulation cover 4 and the first shell.

[0048] Specifically, an annular groove 13 and an annular plug 14 are respectively provided at the ends of the front cover 11 and the rear cover 12 that are close to each other. When the annular plug 14 is inserted into the annular groove 13, a sealed fit between the front cover 11 and the rear cover 12 is formed.

[0049] Understandably, Figure 1-Figure 3 The front cover 11 and the rear cover 12 shown in the figure are only one way to form the first housing. In other embodiments, the first housing may be formed in other forms, for example: Figure 2 The up-down separation form is not the left-right separation form, that is, Figure 2 The left half of the middle front cover 11 and the left half of the rear cover 12 constitute the left half of the entire first housing. Figure 2 The right half of the middle front cover 11 and the right half of the rear cover 12 constitute the right half of the entire first housing.

[0050] Obviously, the annular protrusion may not be provided on the front cover 11, but may be provided on the rear cover 12, as long as the annular protrusion can clamp the heat shield 4, or in other words, can support the heat shield 4. It is easy to understand that the annular protrusion is not the only solution for forming the heat insulation ring cavity 5. In other embodiments, the annular protrusion may be replaced by protrusions distributed at intervals along the circumferential direction inside the first shell. The structural form of the protrusion may be a convex point or a convex strip, as long as the heat shield 4 can be clamped.

[0051] It is understandable that the annular protrusion 6 is preferably arranged close to the annular air outlet 1. The airflow is blown out from the annular air outlet 1 after being heated, so the portion of the first shell close to the annular air outlet 1 is generally at a higher temperature, and the annular protrusion 6 is also at a higher temperature because it contacts the heat insulation cover 4. The annular protrusion 6 is arranged close to the annular air outlet 1, that is, the portions with higher temperatures on the first shell are arranged centrally, which greatly reduces the risk of touching the portions with higher temperatures on the first shell when using the hair dryer.

[0052] It is worth noting that by providing the annular groove 13 and the annular plug 14 and making the two seal together, on the one hand, the connection strength between the front cover 11 and the rear cover 12 can be ensured, so that the front cover 11 and the rear cover 12 are not easily separated, and on the other hand, the sealing of the first shell can be ensured, so that the airflow is not easily leaked from the connection between the front cover 11 and the rear cover 12. At the same time, the front cover 11 and the rear cover 12 are easy to assemble and disassemble. Preferably, reference Figure 1-Figure 3 , Figure 5 , the inner and outer sides of the annular plug 14 are respectively provided with a second shoulder 15, and the notch edge of the annular groove 13 abuts against the second shoulder 15. By providing the second shoulder 15, on the one hand, the path length of the airflow leakage from the connection between the front cover 11 and the rear cover 12 can be increased, further reducing the risk of airflow leakage, and on the other hand, the connection strength between the front cover 11 and the rear cover 12 can be improved. In other embodiments, the connection between the front cover 11 and the rear cover 12 can be completed by welding. It is easy to understand that after the annular protrusion 6 of the front cover 11 supports the heat insulation cover 4, the rear cover 12 can be free from contact with the heat insulation cover 4 and the heating device, that is, there is a preset distance between the rear cover 12 and the heat insulation cover 4 and the heating device, which can avoid the temperature of the rear cover 12 being too high, and the parts of the first shell with too high temperature are distributed on the front cover 11, which reduces the probability of touching the parts with too high temperature.

[0053] refer to Figure 1 , Figure 2 , Figure 5In one embodiment, the inner side of the annular protrusion 6 is a slope 7, and the slope 7 gradually approaches the heat shield 4 along the direction close to the annular air outlet 1. By setting the inner side of the annular protrusion 6 as the slope 7, that is, the inner side of the annular protrusion 6 has a certain inclination or curvature, so that the inner side of the annular protrusion 6 is not straight up and down, the slope 7 can guide the installation of the heat shield 4, and facilitate the installation of the heat shield 4. In addition, the setting of the slope 7 facilitates the demolding of the first shell after injection molding.

[0054] It is easy to understand that the reference Figure 1 , Figure 2 , Figure 5 The corner of the annular protrusion 6 is preferably a rounded corner 8. Compared with a right angle, on the one hand, this can ensure the injection molding quality of the annular protrusion 6 and facilitate demolding after the first shell is injection molded. On the other hand, the rounded corner 8 plays a role of smooth transition and can guide the installation of the heat insulation cover 4.

[0055] It is worth noting that reference Figure 1 , Figure 2 , Figure 5 In one embodiment, a first annular shoulder 9 is provided in the first shell near the annular air outlet 1, and the end of one end of the heat shield 4 abuts against the first shoulder 9. The first shoulder 9 can limit the heat shield 4. When the heat shield 4 abuts against the first shoulder 9, it cannot continue to move closer to the annular air outlet 1. At this time, it indicates that the heat shield 4 has been installed in place, which improves the installation efficiency of the heat shield 4.

[0056] In order to ensure the connection stability between the heat shield 4 and the heating device and reduce the relative shaking between the heating device and the heat shield 4 under the action of high-speed airflow, refer to Figure 4 , Figure 5 In one embodiment, a lug 10 is provided at one end of the fixing plate 3 close to the annular air outlet 1, and the lug 10 extends in a direction away from the axis of the heating support 2; a slot matching the lug 10 is provided at one end of the heat shield 4 close to the annular air outlet 1, and the lug 10 is engaged with the slot and abuts against the first shoulder 9 at the same time. It can be understood that by providing the lug 10 on the fixing plate 3 and the slot on the heat shield 4, the heat shield 4 can press the lug 10 when the heat shield 4 abuts against the first shoulder 9, and the lug 10 is engaged in the space enclosed by the slot and the first shoulder 9, thereby playing a certain fixing role for the entire heating device.

[0057] The present application also provides a hair dryer, which includes the aforementioned hair dryer head. It is easy to understand that in one embodiment, the hair dryer also includes a handle, and a blower is provided in the handle. The hair dryer can be a hair dryer powered by an external power supply, or a hair dryer with a built-in power supply. The specific structure of the hair dryer head refers to the aforementioned embodiment. Since the hair dryer adopts the technical solution of the aforementioned embodiment, it at least has the beneficial effects brought by the technical solution of the aforementioned embodiment, which will not be repeated here one by one.

[0058] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. A hair dryer head with a heat-insulating ring cavity, characterized in that: include: A first shell, wherein the first shell is provided with an annular air outlet; A heating device, the heating device comprising a heating support and a fixing plate, the fixing plates being arranged at intervals on the periphery of the heating support, the fixing plates being used to support the heating wire; A heat insulation cover, the heat insulation cover is annularly sleeved on the heating device around the outer circumference of the heating device; The heat insulation cover is clamped in the first shell, and a heat insulation ring cavity is arranged between the heat insulation cover and the first shell.

2. A hair dryer head with a heat-insulating ring cavity according to claim 1, characterized in that: An annular protrusion is provided in the first shell near the annular air outlet, and the outer periphery of one end of the heat insulation cover is clamped on the inner side of the annular protrusion to form the heat insulation annular cavity between the heat insulation cover and the first shell.

3. A hair dryer head with a heat-insulating ring cavity according to claim 2, characterized in that: The inner side of the annular protrusion is a slope, and the slope gradually approaches the heat insulation cover along the direction approaching the annular air outlet.

4. A hair dryer head with a heat-insulating ring cavity according to claim 2, characterized in that: The corners of the annular protrusion are rounded.

5. A hair dryer head with a heat-insulating ring cavity according to claim 1, characterized in that: A first annular shoulder is provided in the first shell near the annular air outlet, and an end of one end of the heat insulation cover abuts against the first shoulder.

6. A hair dryer head with a heat-insulating ring cavity according to claim 5, characterized in that: A lug is provided at one end of the fixing plate close to the annular air outlet, and the lug extends in a direction away from the axis of the heating support member; a slot adapted to the lug is provided at one end of the heat insulation cover close to the annular air outlet, and the lug is snapped into the slot and abuts against the first shoulder at the same time.

7. A hair dryer head with a heat-insulating ring cavity according to claim 2, characterized in that: The first shell includes a front cover and a rear cover, the annular air outlet and the annular protrusion are both arranged on the front cover, and an annular groove and an annular plug are respectively provided at the ends of the front cover and the rear cover close to each other, and the annular plug is sealed with the annular groove.

8. A hair dryer head with a heat-insulating ring cavity according to claim 7, characterized in that: Second shoulders are respectively provided on the inner and outer sides of the annular plug, and the notch edge of the annular groove abuts against the second shoulders.

9. A hair dryer head with a heat-insulating ring cavity according to claim 7, characterized in that: There is a preset distance between the rear cover, the heat insulation cover and the heating device.

10. A hair dryer, characterized in that: The invention comprises a hair dryer head as described in any one of claims 1 to 9.

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