Cleaning device

Abstract

The present invention relates to a cleaning device. The cleaning device comprises a housing, a telescopic assembly, an electronic circuit board, a protective cover (4), and a fan. The telescopic assembly includes a motor, a transmission mechanism (221, 222), and a protruding element (23). The transmission mechanism and the motor are both arranged within the housing, and the transmission mechanism is configured to actuate the protruding element so that it extends out of the housing or retracts into the housing under the action of the motor. The electronic circuit board is located within the housing and is electrically connected to the motor. The protective cover covers at least the electronic circuit board. The fan is disposed within the housing, and one air outlet of the fan faces the protective cover. The cleaning device provided by the present invention protects the electronic circuit board. Figure 2

Description

Title of the invention: Cleaning device technical field

[0001] The present invention relates to the field of cleaning device technology, and in particular to a cleaning device. Technological background

[0002] Cleaning devices, such as sweeper robots, collect foreign matter such as dust using a fan. In the prior art, in order to increase the heat dissipation of an electronic board, the fan's air outlet is aligned with the electronic board, which can lead to the penetration of foreign matter such as dust into the electronic board and affect its operation. Summary of the present invention

[0003] In view of this, the embodiments of the present invention provide a cleaning device capable of protecting the electronic board.

[0004] In order to achieve the above objective, the technical solutions of the embodiments of the present invention are as follows.

[0005] The embodiments of the present invention described above describe a cleaning device comprising:

[0006] a case;

[0007] a telescopic assembly, comprising a motor, a transmission mechanism and a protruding element, the transmission mechanism and the motor both being located in the housing, and the transmission mechanism being configured to actuate the protruding element so that it extends out of the housing or retracts into the housing under the action of the motor;

[0008] an electronic card located in the housing and electrically connected to the motor;

[0009] a protective cover covering at least the electronic board; and

[0010] a fan disposed in the housing, in which an air outlet of the fan faces the protective cover.

[0011] In one embodiment, the cleaning device further comprises a vertical plate arranged in the housing; the electronic board, part of the transmission mechanism and the protective cover being stacked sequentially on one side of the vertical plate, and the motor being arranged on the other side of the vertical plate; an output shaft of the motor passing through the vertical plate and being connected to the transmission mechanism, such that the part of the transmission mechanism can move between the electronic board and the protective cover.

[0012] In one embodiment, the transmission mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod; the first connecting rod being connected to the output shaft, one end of the second connecting rod being pivotally mounted on one end of the first connecting rod, the other end of the second connecting rod being pivotally mounted on one end of the third connecting rod and on one end of the fourth connecting rod, the other end of the third connecting rod being pivotally mounted on the side of the distal housing relative to the protruding element, and the other end of the fourth connecting rod being pivotally mounted on the protruding element; a portion of the first connecting rod being able to move between the electronic board and the protective cover.

[0013] In one embodiment, a surface of the vertical plate further comprises a first stop and a second stop, the first stop and the second stop being arranged separately on a rotation path of the first connecting rod.

[0014] In one embodiment, the vertical plate includes a peripheral frame extending from the surface of the vertical plate; the peripheral frame being arranged at least around a rotation path of one end of the first connecting rod, and parts of the peripheral frame located on both sides of the output shaft in a radial direction of the output shaft extending in directions towards the output shaft to form the first stop and the second stop; the protective cover covering the peripheral frame and defining a receiving space with the peripheral frame; the electronic board being located in the receiving space, and the first connecting rod being at least partially arranged in the receiving space.

[0015] In one embodiment, the protective cover is removably connected to the peripheral frame.

[0016] In one embodiment, the telescopic assembly includes a hood disposed in the housing, the protruding element being disposed in the hood, and the hood being provided with a clearance opening in communication with the interior of the hood; the transmission mechanism being partially disposed in the hood, and a part of the transmission mechanism extending out of the hood and being in drive connection with the motor.

[0017] In one embodiment, a sliding block is formed on an inner wall of the hood or on the protruding element and a sliding groove is formed on the inner wall of the housing or on the protruding element, the sliding block being in sliding fit with the sliding groove.

[0018] In one embodiment, the housing includes an opening communicating with the interior of the housing, and the protruding element is configured to extend at least partially out of the housing or retract into the housing through the opening; the end of the protruding element is configured to extend out of the housing and away the housing being provided with a cover, and the projection area of ​​the opening onto a plane perpendicular to the direction of extension and retraction of the salient element being located in the projection area of ​​the cover onto the plane perpendicular to the direction of extension and retraction of the salient element.

[0019] In one embodiment, the salient element is a lidar.

[0020] Embodiments of the present invention disclose a cleaning device. By arranging the motor, transmission mechanism, electronic board, and fan within the housing, the motor, transmission mechanism, electronic board, and fan can be protected to a certain extent, thus extending their service life. The motor drives the transmission mechanism to actuate the protruding element so that it extends out of the housing or retracts into it, such that the protruding element can retract into the housing when not in use or when it needs to avoid an object, in order to protect it.As the electronic board is connected to the motor, at least part of the protective cover covers the electronic board and the fan's air outlet faces the protective cover; the protective cover can provide a screen against the gas expelled by the fan from the air outlet, in order to reduce failures or limitations of the function of the electronic board after the entry of foreign bodies such as dust into the electronic board, and to improve the operating stability of the electronic board and the telescopic assembly. Brief description of the figures

[0021] [Fig.1] is a schematic view of a cleaning device according to an embodiment of the present invention, in which the protruding element extends out of the receiving space.

[0022] [Fig.2] is a schematic view of the protruding element, the telescopic assembly, the protective cover and the vertical plate of [Fig.1].

[0023] [Fig.3] is a schematic view of the salient element, the telescopic assembly, the electronic board, the position sensors and the vertical plate of [Fig.1].

[0024] [Fig.4] is a schematic view of the salient element, the telescopic assembly, the electronic board and the position sensors of [Fig.1].

[0025] [Fig.5] is a schematic view of the transmission mechanism, the electronic board and the position sensors of [Fig.1].

[0026] [Fig.6] is a schematic view of the transmission mechanism, the electronic board and the position sensors according to another embodiment of the present invention, in which a block is located in a detection window of a retraction sensor.

[0027] Numerical references: 100, cleaning device; 1, housing; 1a, receiving space; 1a1, first cavity; 1a2, second cavity; 1b, opening; 2, telescopic assembly; 21, motor; 22, transmission mechanism; 221, first connecting rod; 2211, block; 222, second connecting rod; 223, third connecting rod; 224, fourth connecting rod; 23, protruding element; 23a, sliding groove; 23b, hood; 24, hood; 24b, release opening; 24c, telescopic orifice; 3, electronic board; 4, protective cover; 5, separating plate; 6, vertical plate; 61, first stop; 62, second stop; 63, peripheral frame; 63a, receiving space; 63b, orifice; 7, position sensor; 7a, detection window; 71, extension sensor; 72, retraction sensor. Description of examples of achievements

[0028] It should be noted that the embodiments of the present invention and the technical features of the embodiments can be combined without conflict. The detailed description of the particular embodiments should be interpreted as an explanation of the principle of the present invention, rather than as an inappropriate limitation thereof.

[0029] This disclosure will be illustrated in more detail below with reference to particular drawings and embodiments. The terms "first," "second," and similar terms in the embodiments of this disclosure are used for illustrative purposes only and shall not be construed as indicating or implying relative importance or implicitly including at least one feature. In the description of the embodiments of this disclosure, unless otherwise clearly and specifically stated, "plurality" refers to at least two, such as two, three, etc.

[0030] Embodiments of the present invention relate to a cleaning device. With reference to Figures 1 to 6, the cleaning device 100 comprises a housing 1, a telescopic assembly 2, an electronic board 3, a protective cover 4, and a fan. The telescopic assembly 2 comprises a motor 21, a transmission mechanism 22, and a protruding element 23. The transmission mechanism 22 and the motor 21 are both located in the housing 1, and the transmission mechanism 22 is configured to actuate the protruding element 23 so that it extends out of the housing 1 or retracts into the housing 1 under the action of the motor 21. The electronic board 3 is located in the housing 1 and is electrically connected to the motor 21. The protective cover 4 covers at least the electronic board 3. The fan is disposed in the housing 1, and an air outlet of the fan faces the protective cover 4.

[0031] In the cleaning device 100 according to the embodiments of the present invention described above, by arranging the motor 21, the transmission mechanism The motor 21, the electronic board 3, and the fan in the housing 1, the motor 21, the transmission mechanism 22, the electronic board 3, and the fan can be protected to some extent, thus extending their service life. The motor 21 drives the transmission mechanism 22 to actuate the protruding element 23 so that it extends out of the housing 1 or retracts into it, in such a way that the protruding element 23 can retract into the housing 1 when not in use or when it needs to avoid an object, in order to protect it.As the electronic board 3 is connected to the motor 21, at least part of the protective cover 4 covers the electronic board 3, and the air outlet of the fan faces the protective cover 4; the protective cover 4 can provide a screen against the gas expelled by the fan from the air outlet, in order to reduce the failure or limitation of the function of the electronic board 3 after the entry of foreign bodies such as dust into the electronic board 3, and to improve the operating stability of the electronic board 3 and the telescopic assembly 2.

[0032] In one embodiment, the housing 1 is provided with a receiving space la and an opening 1b in communication with the receiving space la. The motor 21, the transmission mechanism 22, the electronic board 3 and the fan are all arranged in the receiving space la, and the motor 21 drives the transmission mechanism 22 to actuate the protruding element 23 so that it extends out of the receiving space la or retracts into it.

[0033] In one embodiment, the cleaning device 100 can be a sweeper robot.

[0034] In one embodiment, foreign bodies may also include hair, sand, pieces of paper, etc.

[0035] In one embodiment, the extension and retraction direction of the salient element 23 can be an over-under direction.

[0036] It should be noted that the top-under direction can be either an up-down direction or a vertical direction, the top denoting a direction towards the ceiling, i.e. upwards or, more precisely, vertically upwards, and the bottom being opposite to the top, i.e. downwards or, more precisely, vertically downwards.

[0037] In one embodiment, the opening direction of the opening 1b can be arranged towards the top (i.e. upwards).

[0038] In one embodiment, RI on the [Fig.2] can be in the top-down direction.

[0039] In one embodiment, the shape of the housing 1 is not limited. For example, when the housing 1 is projected in the top-down direction, the shape of the projection of the housing 1 onto a plane (for example, a horizontal plane) perpendicular to the top-down direction can be circular.

[0040] In one embodiment, the salient element 23 is a lidar. Here, when the motor 21 drives the transmission mechanism 22 to actuate the salient element 23 so that it extends out of the receiving space la from the opening 1b, the lidar can detect the surrounding environment and acquire a three-dimensional model of the surrounding environment, then the cleaning device 100 can generate a map based on the data of the acquired three-dimensional model and plan an optimal cleaning path based on the map, in order to improve the cleaning capacity and efficiency of the cleaning device 100.

[0041] In one embodiment, with reference to [Fig. 1], the cleaning device 100 comprises a partition plate 5. The partition plate 5 is arranged in the receiving space la to divide the receiving space la into a first cavity l1a1 and a second cavity la2. The motor 21, the transmission mechanism 22, the electronic board 3, the protective cover 4, and the fan are all arranged in the first cavity l1a1, and the first cavity l1a1 communicates with the opening 1b. The housing 1 is provided with a dust suction inlet. The dust suction inlet communicates with the second cavity la2, and a dust bag is provided in the second cavity la2. An inlet of the dust bag communicates with the dust suction inlet, and an outlet of the dust bag communicates with an air inlet of the fan.Thus, foreign matter such as dust can be collected in the dust bag by the action of the fan.

[0042] In one embodiment, with reference to Figures 1 to 3, the telescopic assembly 2 comprises a hood 24 disposed in the housing 1, the projecting element 23 is disposed in the hood 24, and the hood 24 is provided with a clearance opening 24b in communication with the interior of the hood 24. A part of the transmission mechanism 22 is disposed in the hood 24, and another part of the transmission mechanism 22 extends outwards through the clearance opening 24b and is in drive connection with the motor 21.

[0043] In one embodiment, the hood 24 can be arranged in the first cavity lal.

[0044] Here, by placing the protruding element 23 within the cover 24, the protruding element 23 can be protected, thus further extending its service life. The arrangement of the clearance opening 24b can provide clearance for the movement of the transmission mechanism 22, so as to reduce structural interference with the transmission mechanism 22.

[0045] In one embodiment, the hood 24 is provided with a telescopic cavity and a telescopic opening 24c. The release opening 24b and the telescopic opening 24c both communicate with the telescopic cavity, and the telescopic opening 24c communicates with the opening 1b. The protruding element 23 is disposed in the cavity telescopic. Part of the transmission mechanism 22 is disposed in the telescopic cavity, and another part of the transmission mechanism 22 extends outwards through the clearance opening 24b and is in drive connection with the motor 21.

[0046] Thus, as the telescopic orifice 24c communicates with the opening 1b, the protruding element 23 can enter and exit the housing 1 through the opening 1b via the telescopic orifice 24c.

[0047] In one embodiment, the opening direction of the release opening 24b may be perpendicular to the opening direction of the telescopic orifice 24c, thus preventing structural interference between the protruding element 23 and the transmission device (for example, the transmission mechanism 22).

[0048] In one embodiment, the shape of the hood 24 is not limited. More specifically, when the hood 24 and the protruding element 23 are both projected in the top-down direction, the shape of the projection of the hood 24 onto a plane (for example, a horizontal plane) perpendicular to the top-down direction corresponds to the shape of the projection of the protruding element 23 onto the plane perpendicular to the top-down direction.

[0049] In one embodiment, with reference to [Fig.4], a sliding block is formed on the inner wall of the hood 24 or on the protruding element 23, while a sliding groove 23a is formed on the inner wall of the housing 24 or on the protruding element 23, and the sliding block is in sliding fit with the sliding groove 23a in the extension and retraction direction of the protruding element 23.

[0050] In one embodiment, the wall of the telescopic cavity may be provided with the sliding block extending in the direction of extension and retraction of the projecting element 23. A peripheral side of the projecting element 23 may be provided with the sliding groove 23a, and the sliding groove 23a is in sliding contact with the sliding block. Thus, on the one hand, the sliding groove 23a can provide a smooth and precise movement path, and the sliding block can easily slide in the sliding groove 23a, so that the entire movement process is more precise and controllable; on the other hand, the sliding groove 23a can provide additional support and stability, in order to prevent unstable shaking or sliding during the movement of the sliding block and to ensure good movement stability.

[0051] In one embodiment, with reference to Figures 2 to 4, the housing 1 is provided with an opening 1b communicating with the interior of the housing 1. The protruding element 23 can extend at least partially out of the housing 1 or retract into the housing 1 through the opening 1b. The end of the protruding element 23 configured to extend out of the housing 1 and away from the housing 1 is provided with a cover 23b. When the hood 23b and opening 1b are both projected in the extension and retraction direction of the salient element 23, the region of the projection of the opening 1b onto a plane (for example, a horizontal plane) perpendicular to the extension and retraction direction is located in the region of the projection of the hood 23b onto the plane perpendicular to the extension and retraction direction.

[0052] In one embodiment, the cover 23b can be disposed on the side of the protruding element 23, which can extend out of the receiving space la in the direction of the extension and retraction of the protruding element 23 and away from the receiving space la. Here, when the motor 21 drives the transmission mechanism 22 to actuate the protruding element 23 so that it retracts into the receiving space la, the cover 23b can cover the opening 1b. Thus, after the protruding element 23 has retracted into the receiving space la, the cover 23b can reduce the entry of foreign bodies such as dust into the receiving space la from the opening 1b, thereby protecting the components located in the receiving space la and extending the service life of the components.

[0053] In one embodiment, with reference to Figures 2 and 3, the cleaning device 100 further comprises a vertical plate 6 arranged in the housing 1; the electronic board 3, part of the transmission mechanism 22 and the protective cover 4 are stacked sequentially on one side of the vertical plate 6, and the motor 21 is arranged on the other side of the vertical plate 6; an output shaft of the motor 21 passes through the vertical plate 6 and is connected to the transmission mechanism 22, such that the part of the transmission mechanism 22 can move between the electronic board 3 and the protective cover 4.

[0054] In one embodiment, one end of the vertical plate 6 can be disposed on an outer surface of the hood 24 and near the clearance opening 24b, and the other end of the vertical plate 6 extends away from the hood 24. The electronic board 3 can be disposed on the side of the vertical plate 6 near the fan along the thickness of the vertical plate. A main body of the motor 21 can be disposed on the side of the vertical plate 6 away from the electronic board 3 along the thickness of the vertical plate, and the output shaft of the motor 21 passes through the vertical plate 6 along the thickness of the vertical plate 6.The portion of the transmission mechanism 22 passing through the clearance opening 24b can be positioned on the side of the electronic board 3 near the fan, in the direction of the thickness of the vertical plate 6, and is in drive connection with the output shaft of the motor 21. The protective cover 4 can be positioned on the side of the portion of the transmission mechanism 22 passing through the clearance opening 24b near the fan, in the direction of the thickness of the vertical plate 6. Thus, the drive and transmission action between the . Part of the transmission mechanism 22 and the output shaft can be located between the electronic board 3 and the protective cover 4. On the one hand, the noise during transmission can be reduced to some extent, so that the cleaning device 100 is relatively quiet during its operation; on the other hand, the influence of foreign matter such as dust on the operation of the transmission can be reduced, thus improving the reliability of the transmission; finally, this promotes good use of the overall space in the cleaning device 100, with a compact structure and a high space utilization rate.

[0055] In one embodiment, the hood 24 and the vertical plate 6 can be formed as a single piece, which can improve the strength of the connection between the vertical plate 6 and the hood 24, thus improving the support and load-bearing capacity of the vertical plate 6.

[0056] In one embodiment, with reference to Figures 4 to 6, the transmission mechanism 22 comprises a first connecting rod 221, a second connecting rod 222, a third connecting rod 223, and a fourth connecting rod 224. The first connecting rod 221 is connected to the output shaft; one end of the second connecting rod 222 is pivotally mounted to one end of the first connecting rod 221; the other end of the second connecting rod 222 is pivotally mounted to one end of the third connecting rod 223 and to one end of the fourth connecting rod 224; the other end of the third connecting rod 223 is pivotally mounted on the distal side of the housing 1 relative to the protruding element 23 (for example, the lower side); and the other end of the fourth connecting rod 224 is pivotally mounted on the protruding element 23. A portion of the first connecting rod 221 can move between the electronic board 3 and the protective cover 4.

[0057] In one embodiment, a rotation hole is formed in the middle of the first connecting rod 221 in the length direction of the first connecting rod, and the output shaft is inserted into the rotation hole to transmit the torque.One end of the first connecting rod 221, along its length, is located between the electronic board 3 and the protective cover 4; one end of the second connecting rod 222 can be pivotally mounted to the other end of the first connecting rod 221, along its length; the other end of the second connecting rod 222, along its length, is pivotally mounted to one end of the third connecting rod 223 and to one end of the fourth connecting rod 224, respectively; the other end of the third connecting rod 223, along its length, is pivotally mounted to a wall surface of the receiving space on the side opposite the opening 1b in the extension and retraction direction of the protruding element 23 (for example, the lower side); and the other end of the fourth connecting rod 224, along its length, is pivotally mounted on the protruding element. 23.In other words, the pivot point between the fourth connecting rod 224 and the salient element 23 and the point. The pivot points between the third connecting rod 224 and the housing 1 are arranged at a distance from each other in the direction of extension and retraction of the salient element 23, and the pivot point between the second connecting rod 222 and the third connecting rod 223 and the pivot point between the second connecting rod 222 and the fourth connecting rod 224 are both located between the pivot point between the third connecting rod 223 and the housing 1 and the pivot point between the fourth connecting rod 224 and the salient element 23.

[0058] Thus, since the first connecting rod 221 is connected to the output shaft and is therefore substantially static (more precisely, the first connecting rod cannot move but can rotate around a fixed point (for example, the pivot point between the first connecting rod 221 and the output shaft)), and one end of the third connecting rod 223 is pivotally mounted on the housing 1 and is therefore substantially static (more precisely, the third connecting rod cannot translate but can rotate around a fixed point (for example, the pivot point between the third connecting rod 223 and the housing 1)), the separate pivot connections between the second connecting rod 222 and the first connecting rod 221 and third connecting rod 223 cause the first connecting rod 221, the second connecting rod 222 and the third connecting rod 223 to form a four-connecting rod structure.When the motor 21 drives the first connecting rod 221 in rotation via the motor output shaft, the first connecting rod 221 acts as a crank. The first connecting rod 221 can actuate the third connecting rod 223 so that it pivots around the pivot point between the third connecting rod 223 and the housing 1 (i.e., the pivot point between the third connecting rod 223 and the housing 1 is used as the center of a circle) via the second connecting rod 222, and in this case, the third connecting rod 223 acts as a rocker arm.Furthermore, one end of the fourth connecting rod 224 is articulated at the pivot point between the second connecting rod 222 and the third connecting rod 223, and the other end of the fourth connecting rod 224 is pivotally mounted on the projecting element 23, such that the swing of the third connecting rod 223 causes the fourth connecting rod 224 to push the projecting element 23, causing it to move in the direction of extension and retraction of the projecting element 23 in order to exit or retract from the opening 1b. Thus, the extension and retraction of the projecting element 23 are achieved by means of connecting rod structures, resulting in a compact structure and stable transmission.

[0059] In one embodiment, clockwise rotation of the output shaft allows the salient element 23 to extend out of the receiving space la through the opening 1b, and counterclockwise rotation of the output shaft allows the salient element 23 to retract into the receiving space la through the opening 1b.

[0060] In one embodiment, with reference to figures 2 and 3, a surface of the vertical plate 6 is further provided with a first stop 61 and a second stop 62. The first stop 61 and the second stop 62 are arranged separately on a rotation path of the first connecting rod 221.

[0061] In one embodiment, the first stop 61 and the second stop 62 can both be arranged on the lateral surface of the vertical plate 6 near the fan, along the thickness of the vertical plate. The first connecting rod 221 has an extension limit position in which the protruding element 23 extends to a limit and a retraction limit position in which the protruding element retracts to a limit in a direction of rotation of the first connecting rod. The first stop 61 can stop the first connecting rod 221 when it rotates to the extension limit position, and the second stop 62 can stop the first connecting rod 221 when it rotates to the retraction limit position.

[0062] Thus, by providing the first stop 61 and the second stop 62, it is possible to reduce the occurrence of a structural interference between the first connecting rod 221 and the second connecting rod 222 caused by an excessive rotation of the first connecting rod 221 and the situation in which the protruding element 23 does not extend or retract into its place, thus ensuring good operational stability.

[0063] In one embodiment, with reference to Figures 3 to 6, the cleaning device 100 comprises two position sensors 7 and a controller. The controller is electrically connected to the position sensors 7 and the motor 21. The two position sensors 7 can both be arranged on the electronic board 3 and each is provided with a sensing window 7a. The two position sensors 7 are an extension sensor 71 and a retraction sensor 72. One end of the first connecting rod 221, distal to the pivot point between the first connecting rod 221 and the second connecting rod 222, is formed with a block 2211. When the block 2211 pivots towards the sensing window 7a of the extension sensor 71, the extension sensor 71 can transmit an extension position signal to the controller, and the controller commands the motor 21 to stop after receiving the extension position signal.When block 2211 pivots towards the detection window 7a of retraction sensor 72, the retraction sensor 72 can transmit a retraction position signal to the controller, and the controller commands the motor 21 to stop after receiving the retraction position signal. Thus, situations in which the protruding element 23 does not extend or retract into its position can be reduced, resulting in a high degree of automation.

[0064] In one embodiment, with reference to Figures 3 to 6, the first stop 61 corresponds to the extension sensor 71, and the second stop 62 corresponds to the retraction sensor 72. In other words, when the detection window 7a of the extension sensor 71 detects the block 2211, the controller can command the motor 21 to stop in order to reduce the risk of collision between the first connecting rod 221 and the first stop. 61. Similarly, when the detection window 7a of the retraction sensor 72 detects the block 2211, the controller can command the motor 21 to stop in order to reduce the risk of collision between the first connecting rod 221 and the second stop 62, thus ensuring a high level of safety.

[0065] In one embodiment, with reference to Figures 2 and 3, the vertical plate 6 is configured with a peripheral frame 63 projecting from a surface of the vertical plate 6. The peripheral frame 63 is arranged at least around a rotation path of one end of the first connecting rod 221. The portions of the peripheral frame 63 located on both sides of the output shaft in a radial direction (more precisely, in the direction of the diameter) of the output shaft extend towards the output shaft (i.e., towards the output shaft) to form the first stop 61 and the second stop 62. The protective cover 4 covers the peripheral frame 63 and defines a receiving space 63a with the peripheral frame 63. The electronic board 3 is located in the receiving space 63a, and the first connecting rod 221 is at least partially housed in reception area 63a.

[0066] In one embodiment, one end of the peripheral frame 63 can be connected to the vertical plate 6, the other end of the peripheral frame 63 can extend towards the fan (i.e., towards the fan) along the thickness of the vertical plate 6, and the protective cover 4 covers one extension end (i.e., a free end) of the peripheral frame 63, so as to jointly define the receiving space 63a. The electronic board 3 and the position sensors 7 are all located within the receiving space 63a. The portions of the peripheral frame 63 located on both sides of the output shaft in the radial direction of the output shaft extend towards the output shaft to form the first stop 61 and the second stop 62. An orifice 63b in communication with the receiving space 63a is formed between the first stop 61 and the second stop 62.The end of the first connecting rod 221 provided with the block 2211 can be located in the receiving space 63a, and the other end of the first connecting rod 221 along the longitudinal direction of the first connecting rod 221 passes through the orifice 63b and is pivotally mounted on the second connecting rod 222.

[0067] Thus, by configuring the peripheral frame 63 in conjunction with the protective cover 4, on the one hand, the elements located in the receiving space 63a can be protected in order to reduce the influence of foreign bodies, such as dust, entering the receiving space 63a on the functions of the elements; the protective cover 4 acts as a barrier to reduce the penetration of air exhausted by the air outlet into the receiving space 63a. This not only optimizes the airflow by minimizing obstructions, but also reduces whistling caused by air entering the receiving space 63a.

[0068] It should be noted that, due to the presence of the peripheral frame 63, the receiving space 63a is essentially an annular cavity, and the orifice 63b acts as a whistle. Thus, when the exhaust air blows into the receiving space 63a, a whistling sound can be generated.

[0069] In one embodiment, the protective cover 4 is removably connected to the peripheral frame 63. Thus, the protective cover 4 and the peripheral frame 63 are removably connected in order to facilitate the removal and installation of the protective cover 4, thereby facilitating repair and maintenance.

[0070] In one embodiment, the cleaning device 100 includes a fastening element passing through the protective cover 4 and the peripheral frame 63. In one embodiment, the first stop 61 and a portion of the peripheral frame 63 near the second stop 62 may each be provided with a first mounting hole, corresponding positions of the protective cover 4 are provided with second mounting holes, and the fastening elements may pass through both the first and second mounting holes. Thus, the strength of the connection between the protective cover 4 and the peripheral frame 63 can be improved, and the protective cover 4 is less likely to detach.

[0071] In one embodiment, the fasteners may be bolts, screws or the like.

[0072] In one embodiment, the peripheral frame 63 and the protective cover 4 can be connected by snapping.

[0073] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and adaptations may be made to the present invention by those skilled in the art. All modifications, equivalent substitutions, improvements, and other similar measures carried out in the spirit and principle of the present invention fall within the scope of the present invention.

Claims

Demands

1. Cleaning device, comprising: a housing; a telescopic assembly, including a motor, a transmission mechanism and a protruding element, wherein the transmission mechanism and the motor are both located in the housing, and the transmission mechanism is configured to actuate the protruding element so that it extends out of the housing or retracts into the housing under the action of the motor; an electronic board located in the housing and electrically connected to the motor; a protective cover covering at least the electronic board; and a fan disposed in the housing, wherein one air outlet of the fan faces the protective cover.

2. Cleaning device according to claim 1, wherein the cleaning device further comprises a vertical plate arranged in the housing; the electronic board, part of the transmission mechanism and the protective cover being stacked sequentially on one side of the vertical plate, and the motor being arranged on the other side of the vertical plate; an output shaft of the motor passing through the vertical plate and being connected to the transmission mechanism, such that the part of the transmission mechanism can move between the electronic board and the protective cover.

3. A cleaning device according to claim 2, wherein the transmission mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod, and a fourth connecting rod; the first connecting rod being connected to the output shaft, one end of the second connecting rod being pivotally mounted on one end of the first connecting rod, the other end of the second connecting rod being pivotally mounted on one end of the third connecting rod and on one end of the fourth connecting rod, the other end of the third connecting rod being pivotally mounted on the side of the distal housing relative to the protruding element, and the other end of the fourth connecting rod being pivotally mounted on the protruding element; a portion of the first connecting rod can move between the electronic board and the protective cover.

4. Cleaning device according to claim 3, wherein a surface of the vertical plate further comprises a first stop and a second stop, the first stop and the second stop being arranged separately on a rotation path of the first connecting rod.

5. Cleaning device according to claim 4, wherein the vertical plate comprises a peripheral frame projecting from the surface of the vertical plate; the peripheral frame being arranged at least around a rotation path of one end of the first connecting rod, and portions of the peripheral frame situated on both sides of the output shaft in a radial direction of the output shaft extending in directions towards the output shaft to form the first stop and the second stop; the protective cover covering the peripheral frame and defining a receiving space with the peripheral frame; the electronic board being located in the receiving space, and the first connecting rod being at least partially arranged in the receiving space.

6. Cleaning device according to claim 5, wherein the protective cover is removably connected to the peripheral frame.

7. Cleaning device according to any one of claims 1 to 6, wherein the telescopic assembly comprises a hood disposed in the housing, the protruding element being disposed in the hood, and the hood being provided with a release opening in communication with the interior of the hood; the transmission mechanism being partially disposed in the hood, and a portion of the transmission mechanism extending out of the hood and being in drive connection with the motor.

8. Cleaning device according to claim 7, wherein a sliding block is formed on an inner wall of the hood or on the protruding element and a sliding groove is formed on the inner wall of the housing or on the protruding element, the sliding block being in sliding fit with the sliding groove.

9. A cleaning device according to any one of claims 1 to 8, wherein the housing comprises an opening communicating with the interior of the housing, and the protruding element is configured to

10. extend at least partially out of the housing or retract into the housing through the opening; the end of the protruding element configured to extend out of the housing and away from the housing being provided with a hood, and the area of ​​projection of the opening onto a plane perpendicular to the direction of extension and retraction of the protruding element being located in the area of ​​projection of the hood onto the plane perpendicular to the direction of extension and retraction of the protruding element. Cleaning device according to any one of claims 1 to 9, wherein the salient element is a lidar.

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