Handheld portable scanner

Abstract

The utility model discloses a handheld portable scanner, which comprises a shell with an accommodating cavity, a main control board and a heat dissipation assembly, the main control board and the heat dissipation assembly are arranged in the shell, and at least one heating unit is arranged on the main control board; the heat dissipation assembly comprises a heat dissipation block, and the heat dissipation block abuts against at least one heating unit on the main control board. According to the handheld portable scanner, the fan, the heat dissipation block, the heat conduction pipe and the heat dissipation fins are arranged in the shell to dissipate heat of the heating unit on the control panel, and the heat conduction block is arranged between the camera and the shell to dissipate heat of the camera, so that the heat dissipation efficiency of the scanner is improved, and the service life of the scanner is prolonged; and the influence of temperature rise on the measurement precision and the use comfort is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of scanners, in particular to a handheld portable scanner. Background Art

[0002] A 3D scanner is a scientific instrument used to detect and analyze the shape (geometry) and appearance data (such as color, surface albedo, and other properties) of objects or environments in the real world. The collected data is often used for 3D reconstruction calculations to create digital models of actual objects in the virtual world. These models have a wide range of uses, such as industrial design, defect detection, reverse engineering, robot guidance, topographic measurement, medical information, bioinformatics, criminal identification, digital cultural relics collection, film production, game creation materials, etc.

[0003] The camera, projector and computing unit of the existing portable handheld scanner generate a lot of heat when working. If the heat is not discharged in time, the working efficiency and service life of the instrument will be affected. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a handheld portable scanner to solve the technical problem of heat dissipation efficiency of the prior scanner.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An embodiment of the utility model provides a handheld portable scanner, which includes: a shell with a cavity, and a main control board and a heat dissipation component arranged in the shell, wherein there is at least one heating unit on the main control board; the heat dissipation component includes a heat dissipation block, and the heat dissipation block abuts against at least one heating unit on the main control board.

[0007] Wherein, the heat dissipation block at least abuts against the heat generating unit with the largest heat generation.

[0008] Wherein, the heat dissipation assembly further includes: a heat pipe connected to the heat dissipation block, and heat dissipation fins connected to the heat pipe, and one end of the heat pipe is located on the heat dissipation block.

[0009] Wherein, the heat dissipation component further includes a fan, and an air outlet of the fan is arranged toward the heat dissipation fins.

[0010] Wherein, the shell is provided with an air inlet and an air outlet, the heat dissipation fins are arranged close to the air outlet, and the heat dissipation block is arranged close to the air inlet.

[0011] Wherein, the air inlet and the air outlet are arranged on the bottom side of the shell along the length direction of the handheld portable scanner.

[0012] Wherein, the shell is also provided with a connection hole for an external supporting component.

[0013] In which, an optical module and a battery are also provided in the shell, the optical module is connected to the main control board, and the battery is connected to the main control board; wherein, the heat dissipation assembly also includes a heat conductive block, the optical module includes at least one optical element, and at least the optical element with the largest heat generation is connected to the shell through the heat conductive block.

[0014] Wherein, the optical module includes a projector and a camera, and the heat conductive block is connected to the camera and the shell.

[0015] Among them, the shell includes: a front shell and a rear shell connected to the front shell, the front shell and the rear shell together enclose the cavity, the front shell is also provided with a touch screen, the rear shell is surrounded by a frame, and the main control board and the optical module are arranged on the rear shell.

[0016] Wherein, the rear shell is made of metal material, the heat conducting block is in contact with the rear shell, and the heat dissipating block is connected to the rear shell with a gap between the heat dissipating block and the rear shell.

[0017] Wherein, a heat insulation pad is arranged between the heat dissipation block and the rear shell.

[0018] Wherein, the optical module is arranged between the main control board and the rear shell, and the battery is arranged between the main control board and the front shell.

[0019] Wherein, a protruding structure is protruded outwardly from the back of the rear shell, and the protruding structure is arranged corresponding to the position of the optical module. The rear shell is an integrally formed structure.

[0020] The handheld portable scanner of the utility model is provided with a fan, a heat sink, a heat pipe and heat sink fins in the shell to dissipate the heat of the heating unit on the control board, and a heat conduction block is provided between the camera and the shell to dissipate the heat of the camera, thereby improving the heat dissipation efficiency and service life of the scanner and reducing the influence of temperature rise on measurement accuracy and use comfort.

[0021] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figures 1 to 3 Schematic diagram of the overall structure of the handheld portable scanner at different viewing angles according to an embodiment of the utility model.

[0023] Figure 4 and Figure 5 The diagram is a schematic diagram of the structure of the handheld portable scanner of the embodiment of the utility model from different perspectives with the front shell portion removed.

[0024] Figure 6 The figure is a schematic structural diagram of the rear shell portion of the handheld portable scanner according to an embodiment of the present utility model.

[0025] Figure 7 and Figure 8 The exploded views of the handheld portable scanner according to the embodiment of the present invention are shown in different perspectives.

[0026] Fig. 9 It is a partial structural schematic diagram of the projector, camera and heat dissipation component of the handheld portable scanner according to an embodiment of the utility model.

[0027] Fig.10 The figure is a partial structural diagram of the heat dissipation component of the handheld portable scanner according to an embodiment of the utility model.

[0028] Description of reference numerals:

[0029] Handheld portable scanner 100, shell 1, front shell 11, rear shell 12, control button 13, data interface 14, optical module 40, connecting hole 101, air inlet 102, air outlet 103, protruding structure 120, first through hole 121, light-transmitting hole 122, second through hole 123, frame 125, display screen 2, battery 3, battery holder 31, camera 4, projector 5, heat dissipation assembly 6, heat dissipation block 61, heat pipe 62, fan 63, heat dissipation fins 64, main control board 7, transparent board 8, heat conduction block 65. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "resin", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] Existing portable scanners are generally only used as data collection terminals, and the three-dimensional modeling calculation is performed by intelligent terminals such as computers and servers, which results in the need to carry a computer on site, which is inconvenient to use. At the same time, the camera and computing unit in the existing portable scanner will generate a lot of heat during operation. If the heat is not discharged in time, it will affect the efficiency and service life of the instrument. Based on this, this embodiment provides a handheld portable scanner 100 that can perform on-site computing and modeling.

[0038] See also Figures 1 to 10 The present embodiment provides a handheld portable scanner 100, which includes: a scanner body and a main control board 7 disposed in the scanner body, wherein the main control board 7 is provided with a computing unit, and the computing unit constructs a digital model of the data acquired by the scanner body. The computing unit may include a computing unit such as a CPU, a GPU, and an NPU. In addition to the computing unit, the main control board 7 is also provided with packaged chips such as storage and running memory; the handheld portable scanner of the present embodiment integrates the computing unit for three-dimensional modeling into the scanner body, and does not require an external computer when in use, making it more convenient and portable to use. At the same time, the portable scanner with three-dimensional modeling function is also suitable for use scenarios where data collection and three-dimensional modeling need to be performed on site.

[0039] Specifically, the scanner body includes: a housing 1 with a cavity, an optical module 40 disposed in the housing 1, the optical module 40 includes: a projector 5 and a camera 4, the projector 5 and the camera 4 are both electrically connected to the main control board 7, the main control board 7 is used to receive real-object image information in a real environment captured by the projector 5 and the camera 4 in real time, and the main control board 7 stores and calculates the information. The housing 1 is a flat box with a cavity inside, and the overall appearance of the handheld portable scanner 100 is more compact and thin, which is convenient to carry.

[0040] Please refer again Figure 3 and Figure 7The housing 1 includes a front housing 11 and a rear housing 12. The front housing 11 is connected to the rear housing 12 by screws or snap-on connection. The two housings enclose a cavity for accommodating and installing other components. The front housing 11 and the rear housing 12 are both integral structures. A surrounding frame 125 is arranged around the rear housing 12. The rear housing 12 is similar to a box with an opening on the top and also adopts an integral structure. In order to facilitate heat dissipation, the rear housing 12 is made of a material with high thermal conductivity, such as metal. Among them, a mounting groove is arranged on the front side of the front housing 11. A display screen 2 is arranged in the mounting groove. The display screen 2 is electrically connected to the main control board 7 and is used to display the working information and digital model of the handheld portable scanner 100. In order to facilitate operation, the display screen 2 is a touch display screen. The rear housing 12 is also provided with a first through hole 121 for the camera 4 to capture image information, and the rear housing 12 is also provided with a second through hole 123 for the projector 5 to transmit light. In this embodiment, the first through hole 121 is located in the middle of the rear housing 12 near the upper side, two groups of projectors 5 are provided, and two groups of corresponding second through holes 123 are also provided. The two groups of the second through holes 123 are symmetrically arranged with respect to the first through hole 121, and the two groups of the projectors 5 are also symmetrically arranged with respect to the camera 4. A transparent plate 8 is also provided on the back of the rear housing 12. The transparent plate 8 can prevent external dust or water vapor from entering the interior of the housing 1 without affecting the operation of the camera 4 and the projector 5. The transparent plate 8 can be made of a glass plate or an acrylic plate.

[0041] The camera 4 is directly fixedly connected to the housing 1, which can reduce the overall thickness of the housing 1 and is conducive to miniaturization. In order to prevent the camera 4 from shaking and reducing accuracy during use, the camera 4 can also be fixedly connected to the inside of the housing 1 by a reinforcement such as a clamp, so as to ensure its scanning accuracy.

[0042] See also Figure 2 Since the camera 4 and the projector 5 have a certain height, the bottom of the housing 12 near the upper side is a raised structure 120, which can accommodate the camera 4 and the projector 5, while reducing the thickness of other parts to make the overall size smaller. The raised structure 120 can also improve the strength of the housing 1. Specifically, the raised structure 120 is convexly arranged on the back of the rear housing 12 and is arranged near the upper edge. At the same time, the raised structure 120 can prevent the scanner from slipping from the hand when it is held and used, ensuring safety and stability in use.

[0043] In this embodiment, in order to improve the clarity of the image captured by the camera 4, a fill light (not shown in the figure) is further provided in the housing 1, and a light-transmitting hole 122 for the fill light to transmit light is provided on the rear housing 12. The light-transmitting hole 122 is located directly above the first through hole 121.

[0044] The projector 5 may include any combination of a laser emission module, an infrared light emission module, a structured light emission module, etc. The projector 5 emits structured light toward the object, which is reflected by the surface of the object and captured and received by the camera 4 to assist in three-dimensional modeling.

[0045] Please refer again Figure 1 and Figure 2 The housing 1 is also provided with a data interface 14 and a control button 13. The control button 13 can be used to control the switch of the scanner and the operation control. The data interface 14 is used to connect an external data line to transmit acquired data or an external power supply. The data interface 14 and the control button 13 are respectively arranged on the left and right sides of the housing 1 for easy handheld operation.

[0046] In this embodiment, in order to further realize the convenience of using the handheld portable scanner 100, a battery 3 is provided in the housing 1, and the battery 3 is fixedly connected to the inner wall of the housing 1 through a battery bracket 31. It can be understood that in other embodiments, the handheld portable scanner 100 can also be powered by an external mobile power supply or the like.

[0047] In order to facilitate the handheld portable scanner 100 to be connected to external support or protection equipment such as a handle or a tripod, a connecting hole 101 is also provided on the shell 1. In this embodiment, the connecting hole 101 is a 1 / 4 inch screw hole, and the connecting hole 101 is opened at the bottom of the shell 1.

[0048] Please refer again Figure 5 The shell 1 is also provided with an air inlet 102 and an air outlet 103, which are used to form a circulation channel connected with the inside of the shell 1 for dissipating heat inside.

[0049] In this embodiment, the connection hole 101, the air inlet 102 and the air outlet 103 are all provided at the bottom of the rear housing 12 and arranged along the length direction of the scanner body. The air inlet 102 and the air outlet 103 are provided at the same side of the bottom of the housing 1, which can increase the flow path and area of ​​the airflow in the cavity of the housing 1 and enhance the heat dissipation effect. Generally, a dustproof net can be provided at the air inlet 102 to prevent dust from entering the interior of the housing 1.

[0050] Since the handheld portable scanner 100 of this embodiment is small and portable, the housing 1 is in a flat box shape, and other necessary functional components are integrated inside. However, the projector 5 and camera 4 inside the small portable scanner and the functional units on the main control board 7 generate heat during operation, and this heat needs to be discharged and released in time. Therefore, a heat dissipation component is also provided inside the handheld portable scanner 100 of this embodiment.

[0051] Please refer again Fig. 9 and 10 The housing 1 is also provided with a heat dissipation assembly 6 and a heat dissipation duct connected to the heat dissipation assembly 6, and the heat dissipation assembly 6 is used to discharge the heat inside the housing 1 in time. Specifically, the heat dissipation assembly 6 includes: a heat dissipation block 61, a heat pipe 62 connected to the heat dissipation block 61, and a heat dissipation fin 64 connected to the heat pipe 62, wherein the heat dissipation block 61 is close to the heating unit on the control board 7, and the heat dissipation block 61 can be in contact with the heating unit, or a heat conductive gel can be filled between the two.

[0052] The heat generating unit on the main control board 7 refers to a packaging unit with relatively high power consumption and / or heat generation, which does not mean that the component is designed to generate heat. In this embodiment, the heat generating unit may be a packaging unit including CPU, GPU, NPU, storage and other components.

[0053] In one embodiment, the heat dissipation block 61 is in contact with at least a heat generating unit with the largest heat output; the maximum heat output may be selected according to the following situations, but is not limited to the following situations:

[0054] When working in the product-defined working mode, the package unit with the fastest surface temperature rise or the highest surface temperature;

[0055] If the heating units with the highest heat output are different in multiple working modes, just choose one;

[0056] Or according to the product definition requirements (such as firmware restrictions), the temperature or power consumption of the heating unit cannot exceed the largest heating unit; for example, the product definition requirements, GPU temperature cannot exceed 90 degrees, CPU temperature cannot exceed 95 degrees, and the two are separately packaged as heating units; then the CPU can be the heating unit with the largest heat output;

[0057] If the power consumption of the GPU is controlled at 20W, the power consumption of the CPU is controlled at 10W, and the two are separately packaged as heat generating units, then the GPU can be the heat generating unit with the highest heat generation.

[0058] Generally speaking, the heating element with the largest heat generation needs active heat dissipation to cool down; the heat dissipation block 61 at least needs to abut against the component.

[0059] The heat sink block 61 is arranged close to the air inlet 102, and the heat sink fins 64 are arranged close to the air outlet 103, so that the heat sink block 61 can contact the external low-temperature airflow in the shortest distance and time, and can make the external low-temperature airflow enter the cavity and stay there for the longest time, and after fully contacting with the components in the cavity for heat conduction and temperature rise, it is discharged out of the machine body, so as to maximize the heat dissipation efficiency.

[0060] Furthermore, the heat dissipation assembly 6 also includes a fan 63, which is fixedly connected to the rear housing 12, and the air outlet end of the fan 63 is close to or toward the heat dissipation fins 64, and the heat dissipation fins 64 are close to the air outlet 103. The heat dissipation fins 64 are connected to the heat dissipation block 61 through the heat pipe 62, and the heat dissipation block 61 can be quickly and efficiently transferred to the heat dissipation fins 64. Generally, a plurality of heat dissipation fins are arranged on the heat dissipation fins 64, which can increase the area in contact with the air and increase the heat dissipation efficiency. The heat dissipation fins 64 are directly arranged at the air outlet end of the fan 63, so as to draw the gas in the external environment into the cavity of the housing 1, and quickly take away the heat generated by the heating element when flowing in the cavity, and output it to the environment from the air outlet 103, quickly take away the heat, and realize the function of cooling the internal components. In this embodiment, the fan 63 adopts a micro ultra-thin fan, which can be embedded in the internal cavity of the housing 1 without increasing the thickness of the housing 1 too much.

[0061] Specifically, a heat dissipation duct is reserved in the housing 1 for air circulation, and the heat dissipation duct passes through the bottom of the heating element on the main control board 7 and the bottom of the projector 5 and the camera 4, so as to take away the heat generated by the main heating element. It can be understood that the heat dissipation duct can be an airflow channel formed by the gap between internal components, or an airflow channel independently provided by the housing 1. In order to ensure the retention and sufficient diffusion of the gas, the cavity should minimize the openings except for the necessary openings such as the air outlet 103 and the air inlet 102 to ensure air tightness.

[0062] In this embodiment, a heat pipe 62 is provided between the heat sink 61 and the fan 63. The heat pipe 62 is a heat-conducting copper pipe, one end of which is in contact with the heat sink 61, and the other end of which is in contact with the heat sink fins 64. When dissipating heat, the heat sink 61 first absorbs the heat of the heat generating unit, and then guides it to the heat sink fins 64 through the heat pipe 62. The fan 63 then discharges the transferred heat to the outside of the housing 1 in the form of airflow absorption, thereby significantly improving the heat dissipation efficiency.

[0063] Because the heat generated by the heating element on the main control board 7 is relatively concentrated and large, the local temperature rises quickly, and the scanner needs to be handheld. In order to avoid the local temperature rise of the shell being too fast and the temperature being too high affecting the use, the heat of the heating element should be avoided from being directly transferred to the shell 1 as much as possible, and the contact between the heat sink 61 and the shell 1 should be reduced. Therefore, in this embodiment, there is a gap between the heat sink 61 and the rear shell 12. In order to improve the isolation effect, a thermal insulation pad with poor thermal conductivity can also be set between the two.

[0064] Please refer to the figure again Figure 8 and Fig. 9In one embodiment, the optical module 40 also generates heat when in use, but the heat is lower than that of the heating element on the main control board 7, so it can be cooled by passive heat dissipation; the specific optical module 40 may include multiple heat-generating optical elements, and the judgment standard of the optical element with the largest heat generation can refer to the judgment standard of the above-mentioned heating element.

[0065] In this embodiment, the optical module 40 includes a projector 5 and a camera 4. Generally, the camera 4 generates a large amount of heat, so a heat conductive block 65 is further provided on the back of the camera 4. The heat conductive block 65 abuts against the shell 1, so that the heat generated by the camera 4 is quickly transferred to the shell 1 by the heat conductive block 65 and released into the air, so as to improve the heat dissipation efficiency of the camera 4.

[0066] The camera 4 needs to ensure installation accuracy, so the force on the camera 4 needs to be reduced. Fluid thermal gel, silicone grease, etc. can be filled between the thermal block 65 and the camera 4. The thermal block 65 is made of materials such as metal with high thermal conductivity.

[0067] The heat conducting block 65 is used to transfer the main heat in the optical module 40 to the housing 1, and the huge surface area of ​​the housing 1 is used for rapid and sufficient heat dissipation. The housing 1 is also in full contact with the heat dissipation airflow in the inner cavity, thereby enhancing the heat dissipation efficiency and effect.

[0068] The main channel of the heat dissipation duct is formed between the main control board 7 and the rear shell 12. The computing unit, the projector 5 and the camera 4 are all arranged on a side close to the rear shell 12. The battery 3 is arranged between the main control board 7 and the front shell 11. This distribution can not only isolate the battery from other heating elements, but also make the internal components more evenly distributed, which is conducive to the miniaturized design of the handheld portable scanner, as well as a more balanced overall weight distribution, a better handheld use experience, and improved safety.

[0069] The handheld portable scanner of this embodiment integrates the digital modeling computing unit into the scanner body, and does not need an external computer when in use, making it easy to use and more portable. The handheld portable scanner also has a fan, a heat sink, a heat pipe and a heat sink fin disposed in the housing to dissipate heat for the heating unit on the control board, and also dissipates heat for the camera by disposing a heat block between the camera and the housing, ultimately improving the heat dissipation efficiency and service life of the scanner, and reducing the impact of temperature rise on measurement accuracy and comfort of use.

[0070] The above examples are only used to further illustrate the technical content of the utility model, so that readers can understand it more easily, but it does not mean that the implementation methods of the utility model are limited to this. Any technical extension or re-creation made based on the utility model is protected by the utility model. The protection scope of the utility model shall be based on the claims.

Claims

1. A handheld portable scanner, characterized in that: It comprises: a shell with a cavity, a main control board and a heat dissipation component arranged in the shell, wherein the main control board has at least one heat generating unit; the heat dissipation component comprises a heat dissipation block, and the heat dissipation block abuts against at least one heat generating unit on the main control board.

2. The handheld portable scanner according to claim 1, characterized in that: The heat dissipation block at least contacts the heat generating unit with the largest heat generation.

3. The handheld portable scanner according to claim 1, characterized in that: The heat dissipation assembly further includes: a heat conduction pipe connected to the heat dissipation block, and heat dissipation fins connected to the heat conduction pipe, and one end of the heat conduction pipe is located on the heat dissipation block.

4. The handheld portable scanner according to claim 3, characterized in that: The heat dissipation assembly further includes a fan, and an air outlet of the fan is arranged toward the heat dissipation fins.

5. The handheld portable scanner according to claim 4, characterized in that: The shell is provided with an air inlet and an air outlet, the heat dissipation fins are arranged close to the air outlet, and the heat dissipation block is arranged close to the air inlet.

6. The handheld portable scanner according to claim 5, characterized in that: The air inlet and the air outlet are arranged on the bottom side of the shell along the length direction of the handheld portable scanner.

7. The handheld portable scanner according to claim 1, characterized in that: The shell is also provided with a connection hole for an external supporting component.

8. The handheld portable scanner according to any one of claims 1 to 7, characterized in that: An optical module and a battery are also provided in the shell, wherein the optical module is connected to the main control board, and the battery is connected to the main control board; the heat dissipation assembly also includes a heat conductive block, and the optical module includes at least one optical element, and at least the optical element with the largest heat generation is connected to the shell through the heat conductive block.

9. The handheld portable scanner according to claim 8, characterized in that: The optical module includes a projector and a camera, and the heat conductive block is connected to the camera and the housing.

10. The handheld portable scanner according to claim 8, characterized in that: The shell includes: a front shell and a rear shell connected to the front shell, the front shell and the rear shell together enclose the cavity, a touch screen is also provided on the front shell, a frame is provided around the rear shell, and the main control board and the optical module are arranged on the rear shell.

11. The handheld portable scanner according to claim 10, characterized in that: The rear housing is made of metal material, the heat conducting block is in contact with the rear housing, and the heat dissipating block is connected to the rear housing with a gap between the heat dissipating block and the rear housing.

12. The handheld portable scanner according to claim 11, characterized in that: A heat insulation pad is arranged between the heat dissipation block and the rear housing.

13. The handheld portable scanner according to claim 10, characterized in that: The optical module is arranged between the main control board and the rear shell, and the battery is arranged between the main control board and the front shell.

14. The handheld portable scanner according to claim 10, characterized in that: The back of the rear housing is provided with a protruding structure protruding outwardly, and the protruding structure is arranged corresponding to the position of the optical module. The rear housing is an integrally formed structure.

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