Distance measuring device and blower
By introducing a blocking component into the distance measuring device of the hair dryer, the diffusion angle of the detection beam is reduced, and the problem of low distance measuring efficiency when using a flat nozzle of the traditional hair dryer is solved, achieving higher distance measuring accuracy and efficiency.
Patent Information
- Application Number
- CN202421619853.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-10
AI Technical Summary
When the distance measuring device of traditional hair dryers uses a flat-mouthed air nozzle, the detection beam is easily reflected back by the air nozzle, resulting in the inability to accurately detect the distance of obstacles, and the distance measuring efficiency is low.
A ranging device is designed, including a ranging sensor and a shading component. The shading member consists of a shading plate and a beam channel, which is used to block part of the detection beam, and the beam channel allows the remaining detection beam to pass through, thereby reducing the diffusion angle of the detection beam.
By reducing the diffusion angle of the detection beam, the light beam is avoided from being blocked by non-detected objects, the accuracy of the distance measurement result and the distance measurement efficiency of the distance measurement device are improved.
Smart Images
Figure CN223051511U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hair dryers, and particularly relates to a distance measuring device and a hair dryer. Background Art
[0002] With the development of technology, hair dryers have become indispensable electrical appliances in people's lives. However, when using traditional hair dryers, it is often difficult for users to accurately master the distance between the hair dryer and the hair or other objects, which may cause the hair to be over-blown or scalded, and even pose other safety hazards. In the prior art, by adding a distance sensor at the air outlet of the hair dryer to detect the distance between the air outlet and the user, the air outlet temperature is adjusted according to the real-time distance to avoid scalding the user.
[0003] However, since the light beams emitted from the emission port have a certain divergence angle, when a flat nozzle is used on the hair dryer, some of the detection light beams emitted by the distance sensor will directly hit the nozzle and then be reflected back, resulting in the sensor being unable to detect the real distance to the obstacle.
[0004] Therefore, the prior art needs to be further developed. Summary of the Utility Model
[0005] The purpose of the utility model is to overcome the above technical deficiencies and provide a distance measuring device and a hair dryer to solve the technical problem of the low ranging efficiency of the distance measuring device of the hair dryer in the related art.
[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions: A distance measuring device is provided, including: a distance measuring sensor, the distance measuring sensor includes an emission end that emits a detection light beam; an occlusion member, the occlusion member is located on the transmission path of the detection light beam, the occlusion member includes a baffle and a light beam channel opened on the baffle, the baffle is used to occlude the first part of the detection light beam, and the light beam channel is used to allow the second part of the detection light beam to pass through.
[0007] Further, the axis line of the light beam channel is collinearly arranged with the axis line of the emission end.
[0008] Further, the distance measuring device includes a mounting bracket, the mounting bracket is used to fix the occlusion member so that the occlusion member is spaced apart from the emission end.
[0009] Further, the mounting bracket is provided with a sliding groove, and the sliding groove is slidably connected to the occlusion member relatively.
[0010] Further, the distance measuring sensor includes a receiving end that receives the detection light beam, the receiving end is spaced apart from the emission end, the mounting bracket includes an anti-interference plate, the anti-interference plate is located between the receiving end and the emission end, and the anti-interference plate is used to occlude the third part of the detection light beam.
[0011] Further, an avoidance groove is formed on the mounting bracket, and the avoidance groove is recessed in the anti-interference plate so that at least part of the detection light beam reaches the receiving end.
[0012] Further, the distance measuring device includes a mounting base plate, and a distance measuring sensor and a mounting bracket are mounted on the mounting base plate.
[0013] Further, the shielding plate is a circular plate or a plate coated with a circular light-shielding coating.
[0014] Further, the distance measuring sensor is an infrared distance sensor or an optical distance sensor.
[0015] A hair dryer includes the above-mentioned distance measuring device, and the hair dryer further includes a nozzle. Along the blowing direction of the hair dryer, the distance measuring device is located at the front end of the nozzle.
[0016] Beneficial effects:
[0017] By providing a shielding member, the shielding plate is used to shield the first part of the detection light beam, and the remaining detection light beam passes through the light beam channel, reducing the divergence angle of the detection light beam, avoiding the detection light beam being blocked by non-detection objects and resulting in ranging failure, improving the accuracy of the detection result and the ranging efficiency of the distance measuring device, and solving the technical problem of low ranging efficiency of the distance measuring device of the hair dryer in the related art. Description of the Drawings
[0018] Figure 1 is a structural schematic diagram of a hair dryer in the prior art;
[0019] Figure 2 is a structural schematic diagram of the hair dryer adopted in the embodiment of the present invention;
[0020] Figure 3 is a structural schematic diagram of the distance measuring sensor of the distance measuring device adopted in the embodiment of the present invention;
[0021] Figure 4 is a structural schematic diagram of the distance measuring device adopted in the embodiment of the present invention;
[0022] Figure 5 is a structural schematic diagram of the sliding groove of the distance measuring device adopted in the embodiment of the present invention.
[0023] Among them, the above-mentioned drawings include the following reference numerals:
[0024] 1. Distance measuring sensor; 11. Transmitting end; 12. Receiving end; 2. Shielding member; 21. Shielding plate; 22. Light beam channel; 3. Mounting bracket; 31. Sliding groove; 32. Anti-interference plate; 33. Avoidance groove; 4. Mounting base plate; 5. Nozzle. Detailed Embodiments
[0025] To enable those skilled in the art to better understand the solution of this application, the following will clearly and completely describe the technical solution in the embodiments of this application in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0026] As described in the background art, refer to Figure 1 , since the detection beam has a certain divergence angle, when a flat nozzle 5 is used on the hair dryer, some of the detection beams emitted by the distance measurement sensor 1 will directly hit the nozzle 5 and then be reflected back, resulting in the distance measurement sensor 1 being unable to detect the true distance to the obstacle. At this time, the divergence angle formed by the detection beam is A.
[0027] According to an embodiment of the present invention, a distance measurement device is provided. Please refer to Figures 1 to 5 , including: a distance measurement sensor 1, the distance measurement sensor 1 includes a transmitting end 11 that emits a detection beam; an occlusion member 2, the occlusion member 2 is located on the transmission path of the detection beam, the occlusion member 2 includes a baffle 21 and a beam channel 22 opened on the baffle 21, the baffle 21 is used to occlude the first part of the detection beam, and the beam channel 22 is used to allow the second part of the detection beam to pass through.
[0028] Specifically, when the detection beam is emitted, the detection beams emitted all around are occluded, and only the detection beam at the central position is normally transmitted and reflected normally after encountering the object to be detected, so as to accurately measure the distance of the target object.
[0029] Refer to Figure 2 , after the beam emitted by the transmitting end 11 is occluded by the baffle 21, the emission angle and divergence angle of the detection beam are effectively reduced, so that the detection beam can completely pass through the nozzle 5 of the hair dryer, thereby correctly detecting the distance of the object to be detected. At this time, the divergence angle formed is B, and B is less than A.
[0030] By setting the occlusion member 2, the baffle 21 is used to occlude the first part of the detection beam, and the remaining detection beams pass through the beam channel 22, reducing the divergence angle of the detection beam, avoiding the detection beam being occluded by non-detection objects and resulting in ranging failure, improving the accuracy of the detection result, improving the ranging efficiency of the distance measurement device, and solving the technical problem of the low ranging efficiency of the distance measurement device of the hair dryer in the related art.
[0031] In the distance measurement device of this embodiment, refer to Figure 3, the axis line of the light beam channel 22 is collinear with the axis line of the transmitting end 11. Specifically, the axis line of the baffle 21, the axis line of the light beam channel 22 and the axis line of the transmitting end 11 are all collinear, thereby improving the utilization efficiency of the detection light beam.
[0032] In the ranging device of this embodiment, refer to Figure 4 , the ranging device includes a mounting bracket 3, and the mounting bracket 3 is used to fix the shielding member 2 so that the shielding member 2 is arranged at an interval from the transmitting end 11. Specifically, the shielding member 2 is fixed and installed by the mounting bracket 3, so that it has a stable positional relationship with the ranging sensor 1, and the shielding member 2 is arranged at a relatively close distance from the transmitting end 11.
[0033] Specifically, the distance between the shielding member 2 and the transmitting end 11 needs to be as small as possible, and the closer the two are, the better, to ensure the shielding effect of the shielding member 2.
[0034] In the ranging device of some embodiments, the shielding member 2 is integrally connected to the mounting bracket 3.
[0035] In the ranging device of some embodiments, the shielding member 2 is detachably connected to the mounting bracket 3. The shielding member 2 is detachably connected to the mounting bracket 3, so that the shielding member 2 can be conveniently installed and replaced, and a shielding member 2 with a suitable size can be selected according to the shape and size of the air nozzle 5.
[0036] In the ranging device of this embodiment, refer to Figure 5 , the mounting bracket 3 is provided with a sliding groove 31, and the sliding groove 31 is slidably connected to the shielding member 2 relatively. Through the sliding structure, the rapid installation and replacement of the shielding member 2 are realized.
[0037] Preferably, in the ranging device of this embodiment, the diffusion angle B can be made from 2° to 30°, and according to the distance between the ranging sensor 1 and the opening of the air nozzle 5, the required diffusion angle can be judged and adjusted.
[0038] In the ranging device of this embodiment, refer to Figure 4 , the ranging sensor 1 includes a receiving end 12 for receiving the detection light beam, the receiving end 12 is arranged at an interval from the transmitting end 11, the mounting bracket 3 includes an anti-interference plate 32, the anti-interference plate 32 is located between the receiving end 12 and the transmitting end 11, and the anti-interference plate 32 is used to shield the third part of the detection light beam. Through the above settings, the anti-interference plate 32 is used to shield the detection light beam, avoiding that part of the detection light beam emitted by the transmitting end 11 is reflected by the shielding member 2 into the receiving end 12, thereby affecting the accuracy of the ranging data and causing ranging failure.
[0039] In the ranging device of this embodiment, refer to Figure 4, an avoidance groove 33 is formed on the mounting bracket 3. The avoidance groove 33 is recessed in the anti-interference plate 32 so that at least part of the detection beam reaches the receiving end 12. By providing the avoidance groove 33, the detection beam reflected from the object to be detected is avoided, so that the reflected detection beam can reach the transmitting end 11 smoothly, improving the accuracy and sensitivity of distance measurement.
[0040] In the distance measuring device of this embodiment, refer to Figure 4 , the distance measuring device includes a mounting base plate 4, and a distance measuring sensor 1 and a mounting bracket 3 are mounted on the mounting base plate 4. The distance measuring sensor 1 and the mounting bracket 3 are fixed by the mounting base plate 4,
[0041] In the distance measuring device of this embodiment, refer to Figure 3 , the shielding plate 21 is a circular plate or a plate coated with a circular light-shielding coating.
[0042] In some embodiments, the shielding plate 21 is a circular plate made of a light-shielding material.
[0043] In some embodiments, the shielding plate 21 is coated with a circular light-shielding coating on a transparent plate. The uncoated area can still transmit light, and the area coated with the circular light-shielding coating effectively plays a role in shielding light. With this setting, when the distance measuring device in this embodiment is applied to a hair dryer, the problem that the distance measuring sensor 1 and the shielding plate 21 are small in size and it is difficult to control the shielding accuracy of the shielding plate 21 is solved.
[0044] It can be understood that the shapes of the shielding plate 21 and the light beam channel 22 include but are not limited to circular, and can also be square or other shapes, and the above shapes can all achieve the effect of improving the distance measuring efficiency.
[0045] In the distance measuring device of this embodiment, the distance measuring sensor 1 is an infrared distance sensor or an optical distance sensor.
[0046] In the hair dryer of this embodiment, refer to Figure 2 , the hair dryer includes the distance measuring device as described above, and the hair dryer further includes a nozzle 5. Along the blowing direction of the hair dryer, the distance measuring device is located at the front end of the nozzle 5.
[0047] Specifically, the distance measuring device according to this embodiment can improve the accuracy of distance measurement of the hair dryer. The hair dryer adjusts the blowing temperature of the hair dryer in real time according to the distance measurement result to improve the user experience.
[0048] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0049] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and will not be elaborated here.
[0050] The serial numbers of the above-mentioned embodiments of this application are only for description and do not represent the advantages or disadvantages of the embodiments.
[0051] In the above-mentioned embodiments of this application, the descriptions of the various embodiments have their own emphases. For the parts not elaborated in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.
[0052] The above are only the preferred embodiments of this application. It should be noted that for those of ordinary skill in the art, without departing from the principle of this application, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of this application.
Claims
1. A distance measuring device, characterized in that: include: A distance measuring sensor (1), the distance measuring sensor (1) comprising an emitting end (11) for emitting a detection light beam; A shielding component (2), the shielding component (2) is located on the transmission path of the detection light beam, the shielding component (2) comprises a shielding plate (21) and a light beam channel (22) opened on the shielding plate (21), the shielding plate (21) is used to shield the first part of the detection light beam, and the light beam channel (22) is used to allow the second part of the detection light beam to pass through.
2. The distance measuring device according to claim 1, characterized in that: The axis center line of the light beam channel (22) is arranged colinearly with the axis center line of the emission end (11).
3. The distance measuring device according to claim 1, characterized in that: The distance measuring device comprises a mounting frame (3), and the mounting frame (3) is used to fix the shielding component (2) so that the shielding component (2) and the transmitting end (11) are arranged at a distance.
4. The distance measuring device according to claim 3, characterized in that: The mounting frame (3) is provided with a slide groove (31), and the slide groove (31) is slidably connected to the shielding component (2) relative to each other.
5. The distance measuring device according to claim 3, characterized in that: The distance measuring sensor (1) comprises a receiving end (12) for receiving the detection light beam, the receiving end (12) being spaced apart from the transmitting end (11), the mounting frame (3) comprising an anti-interference plate (32), the anti-interference plate (32) being located between the receiving end (12) and the transmitting end (11), the anti-interference plate (32) being used to shield the detection light beam of a third portion.
6. The distance measuring device according to claim 5, characterized in that: The mounting frame (3) is provided with an avoidance groove (33), and the avoidance groove (33) is recessed on the anti-interference plate (32) so that at least part of the detection light beam reaches the receiving end (12).
7. The distance measuring device according to claim 3, characterized in that: The distance measuring device comprises a mounting base plate (4), on which the distance measuring sensor (1) and the mounting frame (3) are mounted.
8. The distance measuring device according to claim 1, characterized in that: The shielding plate (21) is a circular ring-shaped plate or a plate coated with a circular ring-shaped light-shielding coating.
9. The distance measuring device according to claim 1, characterized in that: The distance measuring sensor (1) is an infrared distance sensor or an optical distance sensor.
10. A hair dryer, characterized in that: The hair dryer comprises a distance measuring device as claimed in any one of claims 1 to 9, and the hair dryer further comprises a nozzle (5), wherein the distance measuring device is located at the front end of the nozzle (5) along the blowing direction of the hair dryer.