Handheld scanner

Abstract

The utility model discloses a handheld scanner, which relates to the technical field of scanners and comprises a shell and a heat dissipation structure, an accommodating cavity is arranged in the shell, a first heat dissipation hole and a second heat dissipation hole which are opposite to each other are formed in the shell, and the first heat dissipation hole and the second heat dissipation hole are both communicated with the accommodating cavity. The heat dissipation structure is located in the containing cavity and comprises a heat conduction support, a heat dissipation fan and a heat conduction piece, the heat conduction support is connected with the cavity wall of the containing cavity, the heat dissipation fan is arranged on the heat conduction support and located between the first heat dissipation hole and the second heat dissipation hole, and the heat conduction piece is connected with the side, back to the heat dissipation fan, of the heat conduction support. Heat dissipated by the component can be sequentially conducted to the heat conduction piece and the heat conduction support, the heat dissipation fan can drive external air to enter the containing cavity from the first heat dissipation holes when working, airflow is blown out from the containing cavity through the second heat dissipation holes to form convection, heat on the containing cavity and the heat conduction support can be rapidly taken away, and therefore the heat dissipation of the containing cavity can be rapidly achieved; and the service life of the component can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to scanner technical field, concretely relates to a hand -held scanner. BACKGROUND

[0002] Handheld scanners are widely used in three-dimensional scanning detection of industries such as automobile radiators due to their portability and high precision. They can work in complex environments, provide complete three-dimensional scanning data and improve detection efficiency. Handheld scanners use blue laser line scanning technology, have multiple laser transmitters and high-resolution image acquisition units, and have simple structure and ergonomic handheld design. Handheld scanners may have multiple operating modes, such as high-speed scanning mode and large-format scanning mode, which can be switched in real time through buttons without the need for post-processing data splicing.

[0003] The prior art with publication number CN 216115894U discloses a multi-wavelength handheld three-dimensional laser scanner, which comprises a skeleton, and an LED lamp, a marker point camera, a laser and a laser camera are arranged on the skeleton; the LED lamp and the marker point camera are used to detect the marker point, and the laser and the laser camera are used to detect the distance; the wavelength of the LED lamp is different from the wavelength of the laser; in the utility model, the marker point camera receives the LED lamp emitted by the marker point reflection, and the laser camera receives the laser emitted by the laser reflected by the object, by setting the LED lamp and the laser to different wavelengths, the interference between the light reflected by the marker point and the laser line is reduced, the accuracy and efficiency of identifying the marker point are improved, and the number of laser lines can be increased without affecting the extraction of the marker point, thereby improving the point extraction efficiency of the scanned object.

[0004] However, the existing scanner does not have a special heat dissipation structure, and only relies on the heat conduction of the watch case for heat dissipation, which is obviously insufficient in heat dissipation efficiency, resulting in that the laser and other components inside the scanner cannot be cooled in time, affecting the service life of the components. UTILITY MODEL CONTENT

[0005] The utility model aims at overcoming the above technical defects, and provides a handheld scanner to solve the technical problem that the existing scanner does not have a special heat dissipation structure, only relies on the heat conduction of the watch case for heat dissipation, which is obviously insufficient in heat dissipation efficiency, resulting in that the laser and other components inside the scanner cannot be cooled in time, affecting the service life of the components.

[0006] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a handheld scanner, which comprises:

[0008] The shell is internally provided with a containing cavity and is provided with opposite first and second heat dissipation holes, the first and second heat dissipation holes both communicating with the containing cavity;

[0009] The heat dissipation structure is located in the containing cavity, the heat dissipation structure comprises a heat conduction support, a heat dissipation fan and a heat conduction piece, the heat conduction support is connected to the cavity wall of the containing cavity, the heat dissipation fan is arranged on the heat conduction support and is located between the first and second heat dissipation holes, and the heat conduction piece is connected to the side of the heat conduction support away from the heat dissipation fan.

[0010] In some embodiments, the first and second heat dissipation holes are both multiple, and the multiple first and second heat dissipation holes are arranged at intervals.

[0011] In some embodiments, the area occupied by the multiple first heat dissipation holes is equal to the area of the heat dissipation fan, and the area occupied by the multiple second heat dissipation holes is equal to the area of the heat dissipation fan.

[0012] In some embodiments, the first and second heat dissipation holes are both one, the first and second heat dissipation holes are both provided with a mesh cover, and the area of the mesh cover is equal to the area of the heat dissipation fan.

[0013] In some embodiments, the heat conduction support is provided with a first through hole penetrating through, and the heat conduction piece is provided with a second through hole, the second through hole and the first through hole are in communication.

[0014] In some embodiments, the heat dissipation structure further comprises a first fin group arranged on the heat conduction support, the first fin group is located between the first heat dissipation hole and the heat dissipation fan, the first fin group comprises multiple first fins arranged at intervals, and the extension direction of the first air inlet formed by the multiple first fins arranged at intervals is parallel to the straight line direction of the heat dissipation fan and the first heat dissipation hole.

[0015] In some embodiments, the heat dissipation structure further comprises a second fin group arranged on the heat conduction support, the second fin group is located between the second heat dissipation hole and the heat dissipation fan, the second fin group comprises multiple second fins arranged at intervals, and the extension direction of the second air inlet formed by the multiple second fins arranged at intervals is parallel to the straight line direction of the heat dissipation fan and the second heat dissipation hole.

[0016] In some embodiments, the shell is provided with a third heat dissipation hole at the top of the heat dissipation fan, and the third heat dissipation hole is located between the first and second heat dissipation holes.

[0017] In some embodiments, the cavity wall of the containing cavity is provided with a boss, and the heat conduction support is threadedly connected to the boss through a screw.

[0018] In some embodiments, the number of heat dissipation fans is two, the first heat dissipation hole and the second heat dissipation hole are coaxially arranged, and the centers of the two heat dissipation fans are located on the central axis of the first heat dissipation hole and the second heat dissipation hole.

[0019] Compared with the prior art, the accommodation cavity opened in the shell of the hand-held scanner can be used to install some components of the scanner, such as a laser, etc. The heat dissipated by the components can be sequentially conducted to the heat conduction member and the heat conduction support. When the heat dissipation fan is working, external air can be driven to enter the accommodation cavity through the first heat dissipation hole, and the airflow can be blown out of the accommodation cavity through the second heat dissipation hole to form a convection, so that the heat on the accommodation cavity and the heat conduction support can be quickly taken away, thereby quickly dissipating heat from the accommodation cavity, which is beneficial to prolonging the service life of the components. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of a hand-held scanner provided by an embodiment of the present application;

[0021] Figure 2 is a structural schematic view of a heat dissipation structure provided by an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0023] In order to solve the technical problem that the scanner in the prior art does not have a special heat dissipation structure, only heat dissipation through heat conduction of the watch case, and the heat dissipation efficiency is obviously insufficient, so that the components such as the laser inside the scanner cannot be quickly dissipated, which affects the service life of the components, the present application provides a hand-held scanner, which can realize efficient heat dissipation of the scanner through air convection, and is beneficial to prolonging the service life of the components inside the scanner.

[0024] Please refer to Figure 1 , Figure 1 is a structural schematic view of a hand-held scanner in an embodiment of the present application, the hand-held scanner comprises a shell 1 and a heat dissipation structure 2, the shell 1 is provided with an accommodation cavity (not shown in the figure) and opposite first and second heat dissipation holes (not shown in the figure), and the first and second heat dissipation holes are both communicated with the accommodation cavity. The heat dissipation structure is located in the accommodation cavity, and the heat dissipation structure comprises a heat conduction support 21, a heat dissipation fan 22 and a heat conduction member 23, the heat conduction support 21 is connected to the cavity wall of the accommodation cavity, the heat dissipation fan 22 is arranged on the heat conduction support 21 and located between the first heat dissipation hole 11 and the second heat dissipation hole, and the heat conduction member 23 is connected to the side of the heat conduction support 21 away from the heat dissipation fan 22.

[0025] In the embodiment, the accommodation cavity can be used to accommodate components of the scanner, and heat generated by the components during operation is accumulated in the accommodation cavity. The heat is first conducted to the heat conduction member 23, and then conducted to the heat conduction support 21. The heat dissipation fan 22 can drive air flow on one side to flow to the other side during operation. The air outside the shell 1 can pass through the first heat dissipation hole 11, the heat dissipation fan 22 and the second heat dissipation hole in sequence, so as to form a continuous convection air flow, so as to quickly take out the heat of the heat conduction support 21, and the heat of the accommodation cavity can also be quickly discharged. Compared with the conventional heat dissipation method through the metal shell, the heat dissipation efficiency of the scanner can be obviously improved.

[0026] In one of the embodiments, referring to Figure 1 and Figure 2 , the number of the first heat dissipation hole 11 and the second heat dissipation hole is multiple. The area occupied by the multiple first heat dissipation holes 11 is equal to the area of the heat dissipation fan 22, and the area occupied by the multiple second heat dissipation holes is equal to the area of the heat dissipation fan. In the embodiment, the multiple first heat dissipation holes 11 and the multiple second heat dissipation holes are arranged in an array, so that the shell 1 has a large heat dissipation area, and the heat dissipation efficiency of the scanner is high. In addition, the area occupied by the multiple first heat dissipation holes 11 is equal to the area of the heat dissipation fan 22, and the area occupied by the multiple second heat dissipation holes is equal to the area of the heat dissipation fan 22, so that the shell 1 has a large heat dissipation hole area while preventing dust from entering the shell 1, and the heat dissipation and dust prevention are balanced.

[0027] In one of the embodiments, the number of the first heat dissipation hole 11 and the second heat dissipation hole is one (not shown in the figure), and the first heat dissipation hole 11 and the second heat dissipation hole are both provided with a mesh cover, and the area of the mesh cover is equal to the area of the heat dissipation fan 22. In the embodiment, the area of the first heat dissipation hole 11 and the area of the second heat dissipation hole are both equal to the area of the heat dissipation fan 22, and the first heat dissipation hole 11 and the second heat dissipation hole are both covered by the mesh cover. The heat dissipation fan 22 can form a large flowing air flow during operation, and the heat dissipation efficiency of the scanner is high. In addition, the mesh cover can also play a certain dust prevention role.

[0028] In one of the embodiments, the material of the heat conduction support 21 is copper, and the material of the heat conduction member 23 is heat-conducting silicone grease. In the embodiment, copper has good heat conduction performance, so that the heat conduction efficiency of the heat conduction support 21 is high. The heat-conducting silicone grease has a high thermal conductivity, and the heat conduction coefficient is generally between 1.0-5.0 W / m·K. It can completely wet the contact surface and form a very low thermal resistance interface, thereby improving the heat dissipation effect of the scanner.

[0029] In one of the embodiments, referring to Figure 2The first through hole 211 is formed in the heat-conducting support 21, and the second through hole 231 is formed in the heat-conducting member 23, and the second through hole 231 is communicated with the first through hole 211. In the embodiment, the first through hole 211 formed in the heat-conducting support 21 can increase the heat-conducting area of the heat-conducting support 21, and the second through hole 231 formed in the heat-conducting member 23 can increase the heat-conducting area of the heat-conducting member 23, so that the heat dissipation efficiency of the scanner can be effectively improved. In addition, the second through hole 231 is communicated with the first through hole 211, and the heat of the accommodating cavity can be directly transmitted to the heat dissipation fan 22 through the second through hole 231 and the first through hole 211, without the need of heat conduction, so that the heat dissipation efficiency of the scanner can be further improved.

[0030] In one embodiment, referring to Figure 2 The heat dissipation structure 2 further comprises a first fin group 24 arranged on the heat-conducting support 21, and the first fin group 24 is located between the first heat dissipation hole 11 and the heat dissipation fan 22. The first fin group 24 comprises a plurality of first fins 241 arranged at intervals, and the extension direction of a first air port 242 formed by the plurality of first fins 241 arranged at intervals is parallel to the straight line direction of the heat dissipation fan 22 and the first heat dissipation hole 11. In the embodiment, the plurality of first fins 241 are arranged at intervals along the blowing direction perpendicular to the heat dissipation fan 22, and the plurality of first fins 241 form a plurality of first air ports 242 at intervals. When the heat dissipation fan 22 works, the airflow can pass through the plurality of first air ports 242 and then be blown out from the second heat dissipation hole. The first fins 241 are all made of metal, for example, copper. The heat of the heat-conducting support 21 can be simultaneously conducted to the plurality of first fins 241. By arranging the plurality of first fins 241, the heat dissipation area is increased, and the heat dissipation efficiency of the scanner is improved.

[0031] In one embodiment, referring to Figure 2 The heat dissipation structure 2 further comprises a second fin group 25 arranged on the heat-conducting support 21, and the second fin group 25 is located between the second heat dissipation hole and the heat dissipation fan 22. The second fin group 25 comprises a plurality of second fins 251 arranged at intervals, and the extension direction of a second air port formed by the plurality of second fins 251 arranged at intervals is parallel to the straight line direction of the heat dissipation fan 22 and the second heat dissipation hole. In the embodiment, the second fin group 25 has the same effect as the first fin group 24, that is, to increase the heat dissipation area and further improve the heat dissipation efficiency of the scanner.

[0032] In one embodiment, referring to Figure 1The third heat dissipation hole 12 is arranged on the top of the shell 1, and is located between the first heat dissipation hole 11 and the second heat dissipation hole. In the embodiment, the third heat dissipation hole 12 is arranged on the top of the shell 1, so that the heat in the accommodating cavity can be discharged through the third heat dissipation hole 12, and the heat dissipation efficiency of the scanner is further improved. The third heat dissipation hole 12 is in a plurality of strip shapes, and the length of each third heat dissipation hole 12 gradually decreases from the middle to both sides, and the heat dissipation area is large.

[0033] In one of the embodiments, the cavity wall of the accommodating cavity is provided with a boss (not shown in the figure), and the heat conduction support 21 is threadedly connected to the boss by a screw. In the embodiment, the heat conduction support 21 is detachably arranged on the boss of the cavity wall of the accommodating cavity by the screw, the heat conduction support 21 is convenient to disassemble and assemble, and the whole heat dissipation structure 2 is detachably arranged on the shell 1 by the screw, so that the heat dissipation structure 2 can be replaced.

[0034] In one of the embodiments, the number of the heat dissipation fans 22 is two, the first heat dissipation hole 11 and the second heat dissipation hole are coaxially arranged, and the centers of the two heat dissipation fans 22 are located on the central axis of the first heat dissipation hole 11 and the second heat dissipation hole. In the embodiment, the two heat dissipation fans 22 can generate stronger air flow when working, the air flow flows faster, and the heat dissipation efficiency of the scanner is higher. In other embodiments, the number of the heat dissipation fans 22 can also be three or more.

[0035] In order to better understand the present application, the following will be combined with Figures 1 to 2 The technical scheme of the present application will be described in detail:

[0036] The accommodating cavity arranged on the shell 1 of the handheld scanner can be used to install some components of the scanner, such as a laser, etc. The heat generated by the components can be sequentially conducted to the heat conduction member 23 and the heat conduction support 21. When the heat dissipation fan 22 works, the external air can enter the accommodating cavity through the first heat dissipation hole 11, and the air flow can be blown out of the accommodating cavity through the second heat dissipation hole, so as to form a convection, and the heat on the accommodating cavity and the heat conduction support 21 can be quickly taken away, thereby the accommodating cavity is quickly heat-dissipated, and the service life of the components is prolonged.

[0037] The specific embodiments of the present application described above do not constitute a limitation on the protection scope of the present application. Any various other corresponding changes and modifications made according to the technical concept of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A hand-held scanner, characterized by The application relates to a heat dissipation structure of a computer. The heat dissipation structure comprises a heat conduction support, a heat dissipation fan and a heat conduction piece. The heat conduction support is connected to the cavity wall of the accommodating cavity. The heat dissipation fan is arranged on the heat conduction support and located between the first heat dissipation hole and the second heat dissipation hole. The heat conduction piece is connected to the side of the heat conduction support which is away from the heat dissipation fan. The heat dissipation structure further comprises a first fin group arranged on the heat conduction support.

2. The hand-held scanner of claim 1, wherein, The first fin group is located between the first heat dissipation hole and the heat dissipation fan.

3. The hand-held scanner of claim 2, wherein, The first fin group comprises a plurality of first fins which are arranged at intervals.

4. The hand-held scanner of claim 1, wherein, The extension direction of the first air outlet formed by the plurality of first fins is parallel to the straight line direction of the heat dissipation fan and the first heat dissipation hole.

5. The hand-held scanner of claim 1, wherein, The heat dissipation structure further comprises a second fin group arranged on the heat conduction support.

6. The hand-held scanner of claim 1, wherein, The second fin group is located between the second heat dissipation hole and the heat dissipation fan.

7. The hand-held scanner of claim 1, wherein, The second fin group comprises a plurality of second fins which are arranged at intervals.

8. The hand-held scanner of claim 1, wherein, The extension direction of the second air outlet formed by the plurality of second fins is parallel to the straight line direction of the heat dissipation fan and the second heat dissipation hole. The first heat dissipation hole and the second heat dissipation hole are both multiple. The area occupied by the plurality of first heat dissipation holes is equal to the area of the heat dissipation fan. The area occupied by the plurality of second heat dissipation holes is equal to the area of the heat dissipation fan. The number of the first heat dissipation hole and the second heat dissipation hole is one. The first heat dissipation hole and the second heat dissipation hole are both provided with a mesh cover. The area of the mesh cover is equal to the area of the heat dissipation fan. The heat conduction support is provided with a first through hole. The heat conduction piece is provided with a second through hole. The second through hole is communicated with the first through hole. The shell is provided with a third heat dissipation hole at the top of the heat dissipation fan. The third heat dissipation hole is located between the first heat dissipation hole and the second heat dissipation hole. The cavity wall of the accommodating cavity is provided with a boss. The heat conduction support is threadedly connected to the boss through a screw. The number of the heat dissipation fan is two. The first heat dissipation hole and the second heat dissipation hole are coaxially arranged. The centers of the two heat dissipation fans are located on the central axis of the first heat dissipation hole and the second heat dissipation hole.

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