Laser radar and vehicle

Abstract

The utility model specifically discloses a laser radar and a vehicle, the laser radar comprises a shell assembly, a laser transmit-receive module and a radiator, the laser transmit-receive module is installed in the shell assembly, the radiator is installed in the shell assembly, one end of the radiator is in contact with the laser transmit-receive module, and a first cooling fin is arranged in the shell assembly. One end of the first radiating fin is in contact with the part, far away from the laser transceiving module, of the radiator, and the other end of the first radiating fin is in contact with the shell assembly. According to the laser radar disclosed by the invention, the heat dissipation efficiency of the laser radar during working can be improved.

Description

Technical Field

[0001] The present disclosure belongs to the field of vehicle technology, and specifically relates to a laser radar and a vehicle. Background Art

[0002] During the operation of the LiDAR, the power density of the laser transceiver chip and the main chip is relatively high. If the heat cannot be dissipated in time and the chip temperature is too high, it will cause problems such as temperature drift, affecting the detection accuracy and detection distance of the LiDAR, and even damage the chip.

[0003] The heat dissipation method of laser radar in the related art is to dissipate heat to the rear shell. Since a control board and the like are usually placed behind the transceiver module, the heat dissipation solution in the related art needs to add an intermediate adapter shell assembly or open a hole in the middle of the control board to extend the protruding features of the rear cover structure to dissipate heat for the transceiver module. The former needs to add an external intermediate adapter component and add a seal at the same time, which increases the cost and the risk of seal failure; the latter designs the control board as a special-shaped board, which increases the cost. Utility Model Content

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides a laser radar, which can improve the heat dissipation efficiency of the laser radar when it is working.

[0005] An embodiment of the present disclosure also provides a vehicle.

[0006] The laser radar of the embodiment of the present invention includes: a shell assembly and a laser transceiver module, wherein the laser transceiver module is installed in the shell assembly; a heat sink, wherein the heat sink is installed in the shell assembly, and one end of the heat sink is in contact with the laser transceiver module; a first heat sink, wherein one end of the first heat sink is in contact with the heat sink away from the laser transceiver module, and the other end of the first heat sink is in contact with the shell assembly.

[0007] The laser radar of the disclosed embodiment can improve the heat dissipation efficiency when the laser radar is working.

[0008] In some embodiments, a heat conducting layer is provided between the heat sink and the laser transceiver module.

[0009] In some embodiments, the housing assembly includes a first housing, a second housing, and a window, the first housing and the second housing are connected, the window is connected to the first housing, and the first heat sink is in contact with the first housing.

[0010] In some embodiments, the window is snap-connected with the first shell, one of the first shell and the window has a buckle, and the other has a slot, and the buckle is snapped into the slot.

[0011] In some embodiments, the window has a protrusion on one side adjacent to the first shell, the first shell has a groove on one side adjacent to the window, the protrusion is stuck in the groove, and an adhesive layer is provided between the protrusion and the groove.

[0012] In some embodiments, the window includes a window body and a heating layer, the heating layer is located on a side of the window body adjacent to the laser transceiver module, and / or the window also includes a protective layer, the protective layer has an outer protective layer and an inner protective layer, the outer protective layer includes a waterproof layer, a transmittance-enhancing layer and a hardening layer arranged in sequence from the outside to the inside, the inner protective layer includes a hardening layer and a transmittance-enhancing layer, and the heating layer is located in the inner protective layer.

[0013] In some embodiments, the laser transceiver module includes a partition, which is arranged in the first shell to divide the internal space of the first shell into a transmitting cavity and a receiving cavity that are independent of each other, and / or the laser transceiver module also includes a light-isolating elastomer, which is located between the window and the partition.

[0014] In some embodiments, the laser transceiver module also includes a laser transmitting and receiving chip board, a transmitting end and a receiving end, the laser transmitting and receiving chip board is connected to the transmitting end and the receiving end, and the heat sink is in contact with a side of the laser transmitting and receiving chip board away from the transmitting end and the receiving end.

[0015] In some embodiments, the laser transceiver module also includes a control board, which is connected to the second shell, and a second heat sink is provided between the control board and the second shell, one end of the second heat sink is in contact with the control board, and the other end of the second heat sink is in contact with the second shell.

[0016] The vehicle of the disclosed embodiment includes a laser radar as described in any of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of a laser radar in the related technology.

[0018] Figure 2 It is a schematic diagram of the structure of a laser radar in another related technology.

[0019] Figure 3 is an exploded diagram of the laser radar according to an embodiment of the present disclosure.

[0020] Figure 4 is a cross-sectional view of a laser radar according to an embodiment of the present disclosure.

[0021] Figure 5 is a cross-sectional view of a window according to an embodiment of the present disclosure.

[0022] Figure 6 It is a schematic diagram of the connection between the window and the first shell of an embodiment of the present disclosure.

[0023] Figure 7 It is a schematic diagram of the connection between the window and the first shell according to another embodiment of the present disclosure.

[0024] Figure 8 It is a schematic diagram of the working principle of the laser radar of the embodiment of the present disclosure.

[0025] Fig. 9 It is a cross-sectional view of the laser transceiver module of the embodiment of the present disclosure.

[0026] Reference numerals:

[0027] Intermediate transfer housing assembly 100, radiator 1, first heat sink 2, heat conducting layer 3, first housing 4, second housing 5,

[0028] Window 6, window body 61, protective layer 62, waterproof layer 621, anti-reflection layer 622, hardening layer 623, heating layer 63,

[0029] Buckle 7, slot 8, protrusion 9, groove 10, lens holder 11, partition 12, first partition 121, second partition 122, transmitting end 13, receiving end 14, laser transmitting and receiving chip board 15, control board 16, second heat sink 17, laser transmitting chip 18, laser receiving chip 19, positioning column 20, positioning hole 21, light-isolating elastomer 22, filter 23. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0031] like Figure 1 and Figure 2 As shown, during the operation of the LiDAR, the power density of the laser transceiver chip and the main chip is relatively high. If the heat cannot be dissipated in time and the chip temperature is too high, it will cause problems such as temperature drift, affecting the detection accuracy and detection distance of the LiDAR, and even damage the chip.

[0032] The heat dissipation solution and heat dissipation efficiency of the laser radar are also affected by the system solution. Based on the design of fixing the laser transceiver module to the shell, the heat dissipation method of the laser transmitting / receiving module in the related art is to dissipate heat to the rear shell. Since the control board is usually placed behind the transceiver module, the traditional heat dissipation solution needs to add an intermediate adapter shell component 100 (such as Figure 1 as shown) or by opening a hole in the middle of the control panel to protrude the rear cover structure (as shown Figure 2The former needs to add an external intermediate adapter component and a seal, which increases the cost and the risk of sealing failure; the latter designs the control board as a special-shaped board, which increases the cost, and there are also heat dissipation devices on the control board. Both the laser transceiver module and the control module are cooled through the rear shell, which will cause heat concentration, crosstalk, and ineffective heat dissipation, resulting in overheating of key components.

[0033] like Figures 3 to 9 As shown, the laser radar of an embodiment of the present invention includes: a shell assembly, a laser transceiver module and a heat sink 1, the laser transceiver module is installed in the shell assembly, the heat sink 1 is installed in the shell assembly, and one end of the heat sink 1 contacts the first heat sink 2 with the laser transceiver module, one end of the first heat sink 2 contacts the heat sink 1 away from the laser transceiver module, and the other end of the first heat sink 2 contacts the shell assembly.

[0034] Specifically, Figure 1 and Figure 2 As shown, there is a accommodating space inside the shell assembly, the laser transceiver module is installed in the accommodating space, the radiator 1 is also located in the accommodating space, the left end face of the radiator 1 contacts the right end face of the laser transceiver module, the right end face of the radiator 1 contacts the upper half of the first heat sink 2, and the lower half of the first heat sink 2 contacts the shell assembly.

[0035] It should be noted that the heat sink 1 and the laser transceiver module can be connected by bolts, or the heat sink 1 and the laser transceiver module can be snap-connected.

[0036] For example, the first heat sink 2 is a flexible heat sink, for example, the first heat sink 2 is a thermally conductive graphite sheet, the heat sink 1 transfers the heat generated by the laser transceiver module to the first heat sink 2, and the first heat sink 2 transfers the heat to the housing assembly.

[0037] The laser radar of the disclosed embodiment can transfer the heat of the laser transceiver module to the first heat sink 2 by providing a heat sink 1, and the first heat sink 2 transfers the heat to the shell assembly. The first heat sink 2 and the heat sink 1 are in direct contact, and the heat sink 1 is in direct contact with the laser transceiver module, thereby improving the heat dissipation efficiency of the laser radar when it is working. Compared with the heat dissipation method in the related art, there is no need to add an intermediate connecting shell, and there is no need to make an opening on the control board 16 of the laser transceiver module, thereby reducing the manufacturing cost.

[0038] In some embodiments, there is a heat conductive layer 3 between the heat sink 1 and the laser transceiver module. For example, the heat conductive layer 3 can be a heat conductive silicone or a heat conductive gel. By setting the heat conductive layer 3, the contact stability between the laser transceiver module and the heat sink 1 can be improved, thereby improving the heat conduction efficiency, and then improving the heat dissipation efficiency of the laser transceiver module.

[0039] In some embodiments, the shell assembly includes a first shell 4 , a second shell 5 and a window 6 , the first shell 4 and the second shell 5 are connected, and the window 6 is connected to the first shell 4 .

[0040] Specifically, Figure 1 and Figure 2 As shown, the first shell 4 is located on the left side of the second shell 5. In other words, the first shell 4 is closer to the external window 6 than the second shell 5, and the first shell 4 is detachably connected. The second shell 5 is directly connected to the first shell 4. By setting the split first shell 4 and second shell 5, it is convenient to assemble the entire laser radar.

[0041] The first heat sink 2 is in contact with the first shell 4 , and can transfer the heat of the laser transceiver module and the heat sink 1 to the first shell 4 , and dissipate the heat to the outside through the first shell 4 .

[0042] The laser transceiver module is connected to the first housing 4, which reduces the size tolerance between the lens and the window, and can minimize the design distance between the lens and the window, thereby reducing the influence of light crosstalk on the ranging accuracy.

[0043] In some embodiments, the window 6 comprises a window body 61 , a protective layer 62 and a heating layer 63 , and the heating layer 63 is located on a side of the window body 61 adjacent to the laser transceiver module.

[0044] It should be noted that the heating layer 63 is a transparent heating layer 63 .

[0045] Specifically, Figure 3 As shown, the protective layer 62 has an outer protective layer and an inner protective layer 62, the outer protective layer 62 includes a waterproof layer 621, a permeability-enhancing layer 622 and a hardening layer 623 arranged in sequence from the outside to the inside, the inner protective layer 62 includes a hardening layer 623 and a permeability-enhancing layer 622, and the heating layer 63 is located in the inner protective layer 62, that is, the heating layer 63 is located between the hardening layer 623 and the permeability-enhancing layer 622 of the inner protective layer 62.

[0046] It should be noted that the heating layer 63 may be wrapped with a heating wire or a heating film, which generates heat through electrode conduction. By adding a transparent heating layer 63 to the window 6, the window 6 can be heated without affecting the optical transmittance. For usage scenarios where frost and fogging are caused by temperature differences between the inside and outside, the heating layer 63 can be heated through electrode conduction to quickly achieve defrosting and defog effects.

[0047] Optionally, in the case of dirt such as mud, a nozzle or other mechanism can be provided on the vehicle body to spray cleaning liquid onto the outside of the window 6 to remove the dirt, and the residual liquid is then heated by the heating layer 63 to accelerate evaporation and removal, so that the window 6 can quickly restore the designed transmittance.

[0048] In some embodiments, the window 6 is snap-connected with the first shell 4 , one of the first shell 4 and the window 6 has a buckle 7 , and the other has a slot 8 , and the buckle 7 is snap-fitted into the slot 8 .

[0049] Specifically, Figure 4 and Figure 5 As shown, the buckle 7 is arranged at the right end of the window 6, and the slot 8 is opened on the left end surface of the first shell 4. The number of the slots 8 can be multiple, the number of the buckles 7 is the same as the number of the slots 8, and the positions of the buckles 7 and the slots 8 correspond. The buckle 7 can be inserted into the slot 8 to realize the snap connection between the window 6 and the first shell 4.

[0050] like Figure 4 and Figure 5 As shown, the buckle 7 is located on the inner side of the right end surface of the window 6. In other words, when the window 6 is snapped with the first shell 4, the buckle 7 is hidden, that is, the buckle 7 and the slot 8 are not exposed to the outside, thereby improving the aesthetic appearance of the laser radar.

[0051] Alternatively, the buckle 7 is located on the outside of the right end face of the window 6. In other words, when the window 6 is snapped into the first shell 4, part of the buckle 7 will be exposed to the outside. However, the buckle 7 is arranged on the outside, and a slot 8 is opened on the outside of the first shell 4 to facilitate processing of the first shell 4.

[0052] Optionally, a positioning column 20 is provided on the right end face of the window 6, and a positioning hole 21 is provided on the left end face of the first shell 4. When the window 6 is connected to the first shell 4, the positioning column 20 extends into the positioning hole 21, which can improve the assembly accuracy between the window 6 and the first shell 4.

[0053] In some embodiments, the side of the window 6 adjacent to the first shell 4 has a protrusion 9, the side of the first shell 4 adjacent to the window 6 has a groove 10, the protrusion 9 is stuck in the groove 10, and an adhesive layer is between the protrusion 9 and the groove 10.

[0054] Specifically, Figure 4 and Figure 5 As shown, the right end surface of the viewing window 6 has a protrusion 9, and the left end surface of the first shell 4 has a groove 10, and the protrusion 9 can extend into the groove 10, or the right end surface of the viewing window 6 has a groove 10, and the left end surface of the first shell 4 has a protrusion 9.

[0055] It should be noted that there is an adhesive layer between the protrusion 9 and the groove 10 , that is, there is glue between the protrusion 9 and the groove 10 , and the connection and reinforcement between the window 6 and the first shell 4 are achieved by using the glue.

[0056] In addition, since the window 6 and the first shell 4 in the related art are glued together, and since the temperature and air pressure of the automobile and the laser radar vary in a wide range, the changes in temperature and air pressure will cause a pressure difference between the inside and outside of the laser radar. When the pressure on the inside is higher than the pressure on the outside, tensile stress and peeling force will be generated on the adhesive layer. Even if the laser radar is provided with a waterproof breathable valve, a breathable membrane and other pressure difference balancing components, there will still be the impact of instantaneous impact. Repeated instantaneous impact on the glue will cause accelerated aging and loosening, resulting in sealing failure at the window 6 or even the window 6 falling off. The buckle 7 is added between the window 6 and the first shell 4 of the disclosed embodiment to ensure that the compressive stress is continuously provided for the cooperation between the window 6 and the first shell 4, and the sealing failure or even the window 6 falling off caused by the impact of the internal and external pressure difference on the glue is avoided. A protrusion 9 is set on the window 6 to increase the adhesive area, improve the sealing reliability, and increase the overflow space to prevent the glue from overflowing. At the same time, the window 6 protrudes and the window 6 is not covered by the window 6, so there will be no color difference, and the appearance effect is better.

[0057] In some embodiments, the laser transceiver module includes a lens holder 11, a partition 12, a transmitting end 13 and a receiving end 14. The partition 12 is arranged in the lens holder 11 to divide the internal space of the first shell 4 into a transmitting cavity and a receiving cavity having independent each other. The transmitting end 13 is located in the transmitting cavity, and the receiving end 14 is located in the receiving cavity.

[0058] Specifically, Figure 6 and Figure 7 As shown, the first shell 4 has a accommodating cavity inside, and the partition 12 extends in the left and right direction. The partition 12 divides the accommodating cavity into two independent cavities, namely a transmitting cavity and a receiving cavity. A transmitting end 13, i.e., a laser transmitting lens, is installed in the transmitting cavity, and a receiving end 14, i.e., a laser receiving lens, is installed in the receiving cavity.

[0059] For example, the partition 12 may include a first partition 121 and a second partition 122. The first partition 121 is arranged adjacent to the outside relative to the second partition 122. A light-isolating elastic member is provided between the first partition 121 and the window 6. For example, the light-isolating elastic member is foam or silica gel. The second partition 122 separates the right end of the accommodating cavity.

[0060] Optionally, the laser transceiver module includes a laser transmitting and receiving chip board 15, which is connected to the transmitting end 13 and the receiving end 14, and the heat sink 1 is in contact with a side of the laser transmitting and receiving chip board 15 away from the transmitting end 13 and the receiving end 14. A filter 23 is also installed at the receiving end 14.

[0061] Optionally, the laser transceiver module also includes a lens bracket 11, which is installed in the first shell 4, and the transmitting end 13 and the receiving end 14 are respectively fixed on the lens bracket 11. By setting the lens bracket 11, the installation stability of the transmitting end 13 and the receiving end 14 can be improved.

[0062] Specifically, Figure 7 As shown, the laser emitting and receiving chip board 15 has a laser emitting chip 18 and a laser receiving chip 19 and both are installed on the same laser emitting and receiving chip board 15. The laser emitting chip 18 is located in the emitting cavity and on the right side of the emitting end 13. The laser receiving chip 19 is located at the receiving end 14 and on the right side of the laser receiving connector. A filter 23 is installed between the receiving end 14 and the laser receiving chip 19.

[0063] Installing the laser transmitting chip 18 and the laser receiving chip 19 on the same chip board can improve the normalized design of the laser transmitting and receiving lenses, and integrate the laser transmitting and receiving chips into the same laser transmitting and receiving chip board 15. Through integrated and normalized design, the types of components and their matching parts design specifications are reduced, the number of single boards is reduced, and the assembly space, assembly steps and process difficulty of the whole machine are saved.

[0064] The space inside the lens holder 11 is divided into an independent transmitting cavity and a receiving cavity by using a partition 12, and a light-isolating elastomer 22 is arranged between the first partition 121 and the window 6 to completely isolate the cavity before laser transmission and reception and reduce the energy of laser crosstalk. The light-isolating elastomer 22 can also avoid generating a large reaction force on the window 6 and affecting the long-term reliability of the sealing of the window 6.

[0065] The laser emission chip 18 is isolated from the receiving chip. In this way, light blocking structures are set at the front and rear ends to isolate the laser emission cavity and the receiving cavity, effectively preventing the influence of self-laser crosstalk.

[0066] It should be noted that when the laser of the transmitting end 13 passes through the window 6, it is inevitable that light will be reflected back inside the window 6 and enter the receiving end 14. Among them, the light directly reflected from the surface of the window 6 and the reflected light once reflected inside the window 6 will have the greatest interference on the laser receiving end 14. The more times the light reflects back, the more the energy is attenuated, and the lower the energy level of the crosstalk light received by the receiving end 14. The directly reflected light is blocked by the first partition 121 and the light-isolating elastic body 22 and will not enter the receiving end 14. The closer the laser transceiver lens is to the window 6, the more difficult it is for the reflected light of the laser of the transmitting end 13 once reflected inside the window 6 to enter the receiving end 14, and the lower the energy of the crosstalk light.

[0067] The laser emitting end 13 and the receiving end 14 are directly fixed to the lens bracket 11, shortening the distance between the emitting and receiving lenses and the window 6, reducing the cumulative tolerance, and effectively reducing the energy level of the light reflected by the emitted laser in the window 6 and received by the receiving end 14, thereby improving the laser crosstalk problem of the radar itself.

[0068] In some embodiments, the laser transceiver module also includes a control board 16, which is connected to the second shell 5. A second heat sink 17 is provided between the control board 16 and the second shell 5. One end of the second heat sink 17 is in contact with the control board 16, and the other end of the second heat sink 17 is in contact with the second shell 5.

[0069] Specifically, Figure 1 As shown, the control board 16 is installed on the second shell 5, and the control board 16 is located on the right side of the radiator 1. A second heat sink 17 is provided between the control board 16 and the second shell 5. The second heat sink 17 can transfer the heat generated by the control board 16 to the second shell 5, thereby conducting the heat generated by the laser transceiver module and the heat generated by the control board 16 to the first shell 4 and the second shell 5 respectively, realizing independent heat dissipation channels without affecting each other, thereby improving the heat dissipation efficiency of the entire laser radar.

[0070] The vehicle of the disclosed embodiment includes a laser radar as described in any of the above embodiments.

[0071] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, 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 limiting the present invention.

[0072] 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 at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0073] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0075] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean 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 present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0076] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A laser radar, characterized in that: include: A housing assembly and a laser transceiver module, wherein the laser transceiver module is installed in the housing assembly; A heat sink, the heat sink is installed in the housing assembly, and one end of the heat sink is in contact with the laser transceiver module; A first heat sink, one end of the first heat sink is in contact with the heat sink away from the laser transceiver module, and the other end of the first heat sink is in contact with the housing assembly.

2. The laser radar according to claim 1, characterized in that: A heat conducting layer is provided between the heat sink and the laser transceiver module.

3. The laser radar according to claim 1, characterized in that: The housing assembly comprises a first housing, a second housing and a window, wherein the first housing is connected to the second housing, and the window is connected to the first housing. The first heat sink is in contact with the first housing.

4. The laser radar according to claim 3, characterized in that: The viewing window is snap-connected with the first shell, one of the first shell and the viewing window has a buckle, and the other has a slot, and the buckle is snap-fitted in the slot.

5. The laser radar according to claim 4, characterized in that: The window has a protrusion on one side adjacent to the first shell, the first shell has a groove on one side adjacent to the window, the protrusion is clamped in the groove, and an adhesive layer is provided between the protrusion and the groove.

6. The laser radar according to any one of claims 3 to 5, characterized in that: The window includes a window body and a heating layer, wherein the heating layer is located on a side of the window body adjacent to the laser transceiver module. And / or, the window also includes a protective layer, the protective layer includes an outer protective layer and an inner protective layer, the outer protective layer includes a waterproof layer, a transmittance-enhancing layer and a hardening layer arranged in sequence from the outside to the inside, the inner protective layer includes a hardening layer and a transmittance-enhancing layer, and the heating layer is located in the inner protective layer.

7. The laser radar according to claim 3, characterized in that: The laser transceiver module includes a partition, which is arranged in the first shell to separate the internal space of the first shell into a transmitting cavity and a receiving cavity which are independent of each other. And / or, the laser transceiver module further includes a light-isolating elastic body, and the light-isolating elastic body is located between the window and the partition.

8. The laser radar according to claim 7, characterized in that: The laser transceiver module also includes a laser transmitting and receiving chip board, a transmitting end and a receiving end. The laser transmitting and receiving chip board is connected to the transmitting end and the receiving end, and the heat sink is in contact with a side of the laser transmitting and receiving chip board away from the transmitting end and the receiving end.

9. The laser radar according to claim 8, characterized in that: The laser transceiver module also includes a control board, which is connected to the second shell. A second heat sink is provided between the control board and the second shell, one end of the second heat sink contacts the control board, and the other end of the second heat sink contacts the second shell.

10. A vehicle, characterized in that: Comprising a laser radar as described in any one of claims 1-9.

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