Air nozzle structure and blower

Abstract

The utility model provides a tuyere structure and a blower, comprising: a tuyere main body connected to an air outlet end of the blower, an air outlet channel being formed in the tuyere main body; the identification piece is connected with the tuyere body, and the identification piece is located in the air outlet channel; the distance sensor is arranged at the air outlet end of the blower, and the detection area of the distance sensor at least covers the identification piece, the air outlet channel and the target object range; and the control device is in signal connection with the distance sensor so as to obtain a first distance between the distance sensor and the identification piece and a second distance between the distance sensor and the target object, and the control device controls the working state of the blower according to the first distance and the second distance. According to the tuyere structure, the technical problem that the distance measurement module fails due to the fact that a sensor is blocked when a tuyere is installed on a blower in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of intelligent detection technology for hair dryers, specifically to a nozzle structure and a hair dryer. Background Technology

[0002] An automatic constant temperature hair dryer refers to a hair dryer with a distance sensor that automatically maintains a constant temperature on the scalp. Automatic constant temperature hair dryers generally use a distance sensor to detect distance. The light beam emitted from the transmitter of the distance sensor hits obstacles such as the scalp and then reflects back to the receiver. The sensor determines the distance to the obstacle by detecting the time of transmission and reception.

[0003] However, the light beam emitted from the nozzle has a certain diffusion angle. When a hair dryer is equipped with a nozzle, the light beam may hit the nozzle directly and reflect back, causing the sensor to be unable to accurately detect the distance to the actual target (such as the scalp). Therefore, installing a nozzle can cause sensor obstruction, rendering distance measurement ineffective and thus preventing precise control of the hair dryer's heating element temperature, affecting the effectiveness of the automatic temperature control function.

[0004] Therefore, existing technologies need further development. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a nozzle structure and a hair dryer to solve the technical problem in the related technology that installing a nozzle on a hair dryer will cause the sensor to be blocked, resulting in the failure of the distance measurement module.

[0006] To achieve the above technical objectives, this utility model adopts the following technical solution: It provides a nozzle structure, comprising: a nozzle body connected to the air outlet of a hair dryer, with an air outlet channel formed within the nozzle body; an identification element connected to the nozzle body and located within the air outlet channel; a distance sensor disposed at the air outlet of the hair dryer, the detection area of ​​the distance sensor at least covering the identification element, the air outlet channel, and the target object; and a control device connected to the distance sensor to obtain a first distance between the distance sensor and the identification element and a second distance between the distance sensor and the target object, the control device controlling the working state of the hair dryer based on the first and second distances.

[0007] Furthermore, the control device is used to compare the first distance with the nozzle distance threshold range. If the first distance is within the nozzle distance threshold range, the control device determines that the nozzle structure has been installed with the blower.

[0008] Furthermore, the control device is used to control the working status of the blower based on the installation of the nozzle structure and the second distance.

[0009] Furthermore, the marker includes: a light-transmitting area and a light-shielding area surrounding the light-transmitting area, wherein the light-transmitting area is used to allow the detection beam emitted by the distance sensor to pass through, and the light-shielding area is used to block the detection beam emitted by the distance sensor.

[0010] Furthermore, the marking component has a centrally symmetrical structure relative to the center of the nozzle body.

[0011] Furthermore, the nozzle structure includes a support for mounting the label, the support is hollow inside and the interior of the support is connected to the light-transmitting area, the end of the support near the air outlet is connected to the nozzle body, and the label is mounted on the end of the support away from the air outlet.

[0012] Furthermore, the nozzle structure includes a connecting ring, the inner surface of which is connected to the support member, the outer surface of which is connected to the inner surface of the nozzle body, and an air outlet is provided on the connecting ring, which is connected to the air outlet channel.

[0013] Furthermore, the support component includes: a first support component, the outer surface of which is connected to a connecting ring; a second support component, one end of which is connected to the first support component, and the other end of which is provided with an identification element; an air outlet channel is formed between the first support component and the nozzle body, and between the second support component and the nozzle body.

[0014] Furthermore, the cross-sectional area of ​​the second support component gradually decreases along the direction closer to the marker.

[0015] A hair dryer, comprising the aforementioned nozzle structure.

[0016] Beneficial effects:

[0017] 1. Using the nozzle structure of this embodiment, a portion of the light beam emitted by the distance sensor hits the marker. The marker changes the reflection path of the light pulse signal emitted by the distance sensor and returns a specific peak signal, thereby calculating the distance value of the marker, i.e., the first distance. When the nozzle is installed on the hair dryer, the first distance can be detected. The control device compares the first distance with a preset threshold to detect whether the nozzle structure is installed or not. For target objects (such as hair, scalp, etc.), the remaining light beam is emitted to the outside of the nozzle structure to detect the target object such as the scalp. After the light beam encounters the target object such as the scalp, it returns to the peak value of the target object, and the distance between the hair dryer and the target object is calculated, i.e., the second distance. This second distance can be used for various applications, such as adjusting the hair dryer's wind speed, temperature, and other parameters, or providing safety protection (such as preventing overheating or burns). The hair dryer controls its working state based on whether the nozzle structure is installed and the first and second distances. In the nozzle structure of this embodiment, the presence or absence of the nozzle is determined by a simple structure without affecting the normal distance measurement after the nozzle is installed. The diffusion angle of the distance sensor is not affected, and the distance measurement accuracy is higher. This solves the technical problem in related technologies where installing a nozzle on a hair dryer can cause sensor obstruction, resulting in the failure of the distance measurement module.

[0018] 2. Using the hair dryer in this embodiment, regardless of whether an adjustment device such as a lens is added to adjust the diffusion angle of the detection beam, it will not affect the accuracy of the detection results or the ranging efficiency of the ranging device. This simplifies the internal structure of the hair dryer and improves the temperature control effect of the hair dryer. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the nozzle structure used in an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the nozzle structure used in an embodiment of the present invention from another perspective;

[0021] Figure 3 This is a top view of the nozzle structure used in this embodiment of the utility model;

[0022] Figure 4 yes Figure 3 AA section view in the middle;

[0023] Figure 5 yes Figure 3 BB section view in the middle;

[0024] Figure 6 This is a diagram showing the identification status of the nozzle structure used in this embodiment of the utility model.

[0025] The above figures include the following reference numerals:

[0026] 1. Nozzle body; 2. Identification component; 21. Light-transmitting area; 22. Light-shielding area; 3. Support component; 31. First support component; 32. Second support component; 4. Connecting ring; 41. Air outlet. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] According to an embodiment of this utility model, a nozzle structure is provided. Please refer to [link / reference]. Figures 1 to 6 The device includes: a nozzle body 1, which is connected to the air outlet of the hair dryer and forms an air outlet channel inside the nozzle body 1; an identification element 2, which is connected to the nozzle body 1 and is located inside the air outlet channel; a distance sensor, which is set at the air outlet of the hair dryer and whose detection area at least covers the identification element 2, the air outlet channel, and the target object; and a control device, which is signal-connected to the distance sensor to obtain a first distance between the distance sensor and the identification element 2 and a second distance between the distance sensor and the target object, and controls the working state of the hair dryer according to the first distance and the second distance.

[0029] Specifically, the detection area of ​​the distance sensor covers at least the area of ​​the marker 2, the air outlet duct, and the target object. The control device is responsible for receiving the peak signal from the distance sensor and performing distance detection on the marker 2 and the air nozzle structure accordingly. When the distance sensor emits a light pulse signal, the signal will hit the object in front (marker 2 or target object) and be reflected back. The sensor calculates the distance between itself and the object by measuring the time difference or phase shift from the emission to the reception of the light pulse.

[0030] Specifically, the distance sensor determines the location of an obstacle and calculates its distance by analyzing the peak value of the reflected light beam after it encounters an obstacle. The emitted light beam is a set of light quantities. When two obstacles at different distances exist within a specific location range, such as... Figure 6 As shown, the returned light rays will have two peaks in the time series.

[0031] Using the nozzle structure of this embodiment, a portion of the light beam emitted by the distance sensor hits the marker 2. The marker 2 changes the reflection path of the light pulse signal emitted by the distance sensor and returns a specific peak signal, thereby calculating the distance value of the marker 2, i.e., the first distance. When the nozzle is installed on the hair dryer, the first distance can be detected. The control device compares the first distance with a preset threshold to detect whether the nozzle structure is installed or not. For target objects (such as hair, scalp, etc.), the remaining light beam is emitted to the outside of the nozzle structure to detect the target object such as the scalp. After the light beam encounters the target object such as the scalp, it returns to the peak value of the target object, and the distance between the hair dryer and the target object is calculated, i.e., the second distance. This second distance can be used for various applications, such as adjusting the hair dryer's wind speed, temperature, and other parameters, or providing safety protection (such as preventing overheating or burns). The hair dryer controls its working state based on whether the nozzle structure is installed and the first and second distances. In the nozzle structure of this embodiment, the presence or absence of the nozzle is determined by a simple structure without affecting the normal distance measurement after the nozzle is installed. The diffusion angle of the distance sensor is not affected, and the distance measurement accuracy is higher. This solves the technical problem in related technologies where installing a nozzle on a hair dryer can cause sensor obstruction, resulting in the failure of the distance measurement module.

[0032] Understandably, the first distance can be a specific numerical value or a range of distance values.

[0033] In the nozzle structure of this embodiment, see Figure 1 The control device compares the first distance with a nozzle distance threshold range. If the first distance is within the nozzle distance threshold range, the control device determines that the nozzle structure has been successfully installed on the hair dryer. In this way, the control device can identify the first distance, thereby determining whether the nozzle structure is installed. Specifically, if the first distance is within the nozzle distance threshold range, it means that the nozzle structure has been installed on the hair dryer, and the hair dryer is now equipped with a nozzle.

[0034] Understandably, when only the nozzle body 1 is used without the marker 2, the nozzle has a complex curved shape, and the distance sensor detects the nozzle distance within a large range. This may lead to extreme situations such as the nozzle distance being equal to the distance to the target object, causing the sensor to fail to detect the actual target (such as the scalp) distance correctly, thus causing measurement failure and affecting the distance measurement results and constant temperature control effect of the hair dryer. When the marker 2 is used and a nozzle distance threshold is preset for the first distance, a specific peak signal can be obtained, thereby accurately determining whether a nozzle is installed and optimizing the hair dryer's blowing effect based on the size parameters of the installed nozzle.

[0035] In the nozzle structure of this embodiment, see Figure 1 The control device is used to control the working status of the blower based on the installation of the nozzle structure and the second distance.

[0036] Understandably, different specifications of nozzle structures can set different installation positions for the marking piece 2, thereby identifying different first distances. In this way, the specific model of the current nozzle structure can be determined based on the first distance, and the working state of the hair dryer can be adjusted according to the specific nozzle model to further optimize the temperature control effect of the hair dryer.

[0037] In this way, based on the installation of the nozzle structure and the second distance, the working state of the hair dryer is controlled. The control device can adjust the wind force and temperature settings, control the power of the hair dryer's motor and heating wire, thereby adjusting the wind speed and power of the hair dryer to achieve the goal of constant temperature when hot air is blown to the target temperature, thus realizing the intelligent control function.

[0038] In the nozzle structure of this embodiment, see Figure 4 The marker 2 includes a light-transmitting area 21 and a light-shielding area 22 surrounding the light-transmitting area 21. The light-transmitting area 21 allows the detection beam emitted by the distance sensor to pass through, while the light-shielding area 22 blocks the detection beam emitted by the distance sensor. Thus, the light-transmitting area 21 ensures that the detection beam emitted by the distance sensor can pass through the marker 2, thereby ensuring successful detection of the second distance. The light-shielding area 22 ensures that the distance sensor obtains a specific peak signal, enabling it to obtain the first distance, thus accurately determining whether the air nozzle is installed and achieving precise temperature control.

[0039] In the nozzle structure of this embodiment, see Figure 1 The marking component 2 has a centrally symmetrical structure relative to the center of the nozzle body 1.

[0040] Specifically, the marker 2 adopts a centrally symmetrical structure. Once the nozzle structure is installed on the hair dryer, no matter how the nozzle is rotated, the detection light emitted by the distance sensor can be reflected back to the distance sensor in the same way.

[0041] In some embodiments of the nozzle structure, see Figure 1 The identification component 2 has a circular structure.

[0042] Preferably, the marking element 2 is a circular structure, which can reduce the fluctuation range of the first distance and improve the distance measurement effect and constant temperature control effect of the hair dryer.

[0043] In some embodiments, the marker 2 may also be a square structure, a polygonal structure, or a closed curved shape, etc., which are all centrally symmetrical structures that can achieve the measurement of the first distance.

[0044] In the nozzle structure of this embodiment, see Figure 4 The nozzle structure includes a support member 3 for mounting the label 2. The support member 3 is hollow inside and communicates with the light-transmitting area 21. The end of the support member 3 near the air outlet is connected to the nozzle body 1, and the label 2 is mounted on the end of the support member 3 away from the air outlet. This use of the support member 3 to support and fix the label 2 means that adjusting the height of the support member 3 will affect the value of the first distance.

[0045] Understandably, the support 3 is a closed structure to prevent additional detection beams from escaping from the support 3, thereby affecting the distance detection effect.

[0046] Preferably, the inner wall of the marker 2, i.e. the light-shielding area 22, protrudes from the inner wall of the support 3 to improve the accuracy of distance measurement.

[0047] In the nozzle structure of this embodiment, see Figure 4 The nozzle structure includes a connecting ring 4, the inner surface of which is connected to the support member 3, and the outer surface of which is connected to the inner surface of the nozzle body 1. An air outlet 41 is provided on the connecting ring 4, and the air outlet 41 communicates with the air outlet channel. By setting the connecting ring 4, the support member 3 can be connected to the nozzle body 1, and the air outlet 41 can be formed on the connecting ring 4.

[0048] Specifically, the air outlet 41 includes multiple outlets, which are spaced apart on the connecting ring 4 around the axis of the connecting ring 4.

[0049] In the nozzle structure of this embodiment, see Figure 4 The support member 3 includes: a first support member 31, the outer surface of which is connected to the connecting ring 4; and a second support member 32, one end of which is connected to the first support member 31, and the other end of which is provided with an identifier 2. Air outlet channels are formed between the first support member 31 and the nozzle body 1, and between the second support member 32 and the nozzle body 1. Thus, the first support member 31 and the second support member 32 are used to support and fix the identifier 2, optimizing the airflow path and enhancing structural stability.

[0050] In the nozzle structure of this embodiment, see Figure 1 The cross-sectional area of ​​the second support member 32 gradually decreases along the direction close to the marker 2. This facilitates the formation of the air outlet channel and allows the marker 2 to be located within the detection area of ​​the distance sensor.

[0051] In the hair dryer of this embodiment, the hair dryer includes the nozzle structure described above.

[0052] Applying the nozzle structure in this embodiment to the constant temperature airflow control process of a hair dryer, a specific marker 2 is set inside the nozzle. When the nozzle structure is installed on the hair dryer, the peak value of the marker 2 can be identified, thereby identifying whether the nozzle is installed or not. This does not affect the normal distance measurement after the nozzle is installed, and the diffusion angle of the distance sensor is not affected, resulting in higher distance measurement accuracy.

[0053] It should be noted that, using the hair dryer in this embodiment, regardless of whether or not adjustment devices such as lenses are added to adjust the diffusion angle of the detection beam, will not affect the accuracy of the detection results or the ranging efficiency of the ranging device. This simplifies the internal structure of the hair dryer and improves the temperature control effect of the hair dryer.

[0054] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0055] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0056] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0057] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0058] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A tuyere structure, characterized by, The air nozzle structure comprises: an air nozzle body (1) connected to the air outlet end of a hair dryer, an air outlet channel being formed in the air nozzle body (1); an identification member (2) connected to the air nozzle body (1), the identification member (2) being located in the air outlet channel; a distance sensor arranged at the air outlet end of the hair dryer, a detection area of the distance sensor covering at least the identification member (2), the air outlet channel and a target object range; a control device connected to the distance sensor to obtain a first distance between the distance sensor and the identification member (2) and a second distance between the distance sensor and the target object, the control device controlling the working state of the hair dryer according to the first distance and the second distance.

2. A windbox structure according to claim 1, characterised in that The control device is configured to compare the first distance with an air nozzle distance threshold range, and if the first distance is within the air nozzle distance threshold range, the control device determines that the air nozzle structure is installed on the hair dryer.

3. A windbox structure according to claim 2, characterised in that The control device is configured to control the working state of the hair dryer according to the installation state of the air nozzle structure and the second distance.

4. The windbox structure of claim 1, wherein The identification member (2) comprises: a light transmission area (21) and a light shielding area (22) arranged around the light transmission area (21), the light transmission area (21) being configured to allow a detection light beam emitted by the distance sensor to pass through, and the light shielding area (22) being configured to shield the detection light beam emitted by the distance sensor.

5. A windbox structure according to claim 4, wherein The identification member (2) is centrally symmetric with respect to the center of the air nozzle body (1).

6. The windbox structure of claim 4, wherein The air nozzle structure comprises a support member (3) for mounting the identification member (2), the support member (3) being hollow inside, the inside of the support member (3) being in communication with the light transmission area (21), one end of the support member (3) close to the air outlet end being connected to the air nozzle body (1), and the other end of the support member (3) away from the air outlet end being provided with the identification member (2).

7. A windbox structure according to claim 6, characterised in that The air nozzle structure comprises a connecting ring (4), an inner surface of the connecting ring (4) being connected to the support member (3), an outer surface of the connecting ring (4) being connected to an inner surface of the air nozzle body (1), and an air outlet (41) being formed in the connecting ring (4) and being in communication with the air outlet channel.

8. A windbox structure according to claim 7, wherein The support member (3) comprises: a first support member (31), an outer surface of the first support member (31) being connected to the connecting ring (4); a second support member (32), one end of the second support member (32) being connected to the first support member (31), and the other end of the second support member (32) being provided with the identification member (2); The first support member (31) and the second support member (32) are connected to the air nozzle body (1), and the air outlet channel is formed between the first support member (31) and the air nozzle body (1) and between the second support member (32) and the air nozzle body (1).

9. A windbox structure according to claim 8, wherein, The cross-sectional area of the second support member (32) gradually decreases in the direction close to the identification member (2).

10. A hair dryer characterized by The hair dryer comprises the air nozzle structure according to any one of claims 1-9.

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