Infrared signal receiving assembly, cleaning robot and recharging system

Abstract

The utility model discloses an infrared signal receiving assembly, a cleaning robot and a recharging system, the infrared signal receiving assembly comprises a lens body and a light blocking piece, the lens body is arranged on the cleaning robot and used for receiving infrared signals, and the light blocking piece is arranged on the lens body and used for blocking the infrared signals. The lens body is divided into at least two mutually independent receiving areas. The infrared signal receiving assembly is applied to the cleaning robot, so that the cleaning robot can identify infrared signals on the two sides of the charging base station respectively, and the cleaning robot can achieve recharging alignment more accurately.

Description

TECHNICAL FIELD

[0001] The utility model relates to cleaning equipment technical field, especially an infrared signal receiving assembly, cleaning robot and back charging system. BACKGROUND

[0002] The robot needs low power protection measures to prevent sudden power failure and shutdown in subsequent work under the condition of insufficient battery power, and the robot will start automatic charging function to reach the charging area under the low power protection mode, complete accurate alignment and start charging, and when the power is relatively high, the running mode will be started again to continue to execute the task, so the robot needs to solve the charging problem.

[0003] At present, one of the robot back charging is based on infrared guidance automatic back charging, four infrared emission tubes are used on the front of the back charging base, two are in the middle and two are at the edge, the volume is relatively large, the infrared device is easily affected by the surrounding environment, the robot cannot accurately find the charging pile, the charging contact and the charging pile are offset, which easily leads to charging failure.

[0004] Therefore, the utility model aims at providing a new technical scheme to solve the existing technical problems. UTILITY MODEL CONTENT

[0005] In order to overcome the defects of the prior art, the utility model provides an infrared signal receiving assembly, a cleaning robot and a back charging system, which solve the problem of inaccurate back charging alignment of the cleaning robot.

[0006] The technical scheme adopted by the utility model to solve the technical problems is:

[0007] An infrared signal receiving assembly is applied to a cleaning robot, characterized in that: a lens body and a light blocking piece are included, the lens body is arranged on the cleaning robot and used for receiving infrared signals, and the light blocking piece is arranged on the lens body and used for separating the lens body into at least two independent receiving areas.

[0008] In the above structure, the signal receiving area includes two, the light blocking piece is detachably connected with the lens body, and the light blocking piece separates the lens body into symmetrical first and second signal receiving areas.

[0009] In the above structure, a mounting through hole is arranged in the middle of the lens body, the light blocking piece includes a separation part and a top cover, the separation part is fixedly connected to the middle of the top cover, the separation part is inserted into the mounting through hole, and the top cover covers the top of the lens body.

[0010] In the structure, the mounting hole is provided with a limiting boss, and the partition is provided with a limiting gap matched with the limiting boss.

[0011] In the structure, the lens body is integrally formed.

[0012] The light blocking piece is integrally formed and made of infrared blocking material.

[0013] The utility model also provides:

[0014] A cleaning robot comprises the infrared signal receiving assembly as described above, the front end of the cleaning robot is provided with a photosensitive sensor, the photosensitive sensor comprises a first signal identification area and a second signal identification area located on both sides of the central axis of the cleaning robot, the infrared signal receiving assembly is arranged on the photosensitive sensor, and the first signal identification area and the first signal receiving area and the second signal identification area and the second signal receiving area are arranged correspondingly, the infrared signal receiving assembly is used for guiding infrared light signals into the photosensitive sensor.

[0015] The utility model also provides:

[0016] A recharging system comprises the cleaning robot as described above.

[0017] In the structure, the charging base station is further provided with a charging base, the charging base is symmetrically provided with a first infrared emitter and a second infrared emitter, and the cleaning robot can be selectively docked on the charging base station.

[0018] The utility model has the advantages that: the lens body is divided into the first signal receiving area and the second signal receiving area by the light blocking piece, the infrared signal receiving assembly is arranged on the cleaning robot, the cleaning robot can identify the infrared signals on the left and right sides of the charging base station, and the cleaning robot can be more accurately recharged. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described in connection with the drawings and examples.

[0020] Figure 1 It is the structure splitting schematic view of the infrared signal receiving assembly of the utility model;

[0021] Figure 2 It is the cross section structure schematic view of the infrared signal receiving assembly of the utility model;

[0022] Figure 3 It is the infrared signal receiving principle diagram of the utility model;

[0023] Figure 4 This is a schematic diagram of the external structure of the cleaning robot of the present utility model.

[0024] Figure numerals: 1. Lens body; 11. Mounting through hole; 111. Limiting boss; 12. First signal receiving area; 13. Second signal receiving area; 2. Light blocking member; 21. Partition; 211. Limiting notch; 22. Top cover; 120. Infrared signal receiving assembly; 3. Cleaning robot; 31. Photosensor; 4. Charging base; 41. First infrared emitter; 42. Second infrared emitter. DETAILED DESCRIPTION

[0025] The following is combined with Figures 1-4 The utility model is further described.

[0026] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present invention can be combined interactively without conflicting with each other.

[0027] Reference Figures 1 to 3 The utility model provides an infrared signal receiving component 120, which is applied to a cleaning robot 3, and includes a lens body 1 and a light blocking member 2. The lens body 1 can be installed on the cleaning robot 3 to guide the infrared signal into the cleaning robot 3; the light blocking member 2 is arranged on the lens body 1 to separate the lens body 1 into a first signal receiving area 12 and a second signal receiving area 13 that are independent of each other. The light blocking member 2 separates the lens body 1 into at least two independent signal receiving areas, and the independent signal receiving areas can receive infrared signals respectively. In this embodiment, the light blocking member 2 is used as an example to illustrate that the lens body 1 is separated into two independent signal receiving areas. The light blocking member 2 separates the lens body 1 into a first signal receiving area 12 and a second signal area that are independent of each other and can both receive infrared signals. The relative orientation information can be obtained by analyzing the infrared signals received by the first signal receiving area 12 and the second signal receiving area 13.

[0028] In other embodiments, the infrared signal receiving assembly 120 can also be configured to include the lens body 1, the light blocking piece 2, and an infrared signal receiving lamp for sensing the infrared signal received by the lens body 1.

[0029] Due to the arrangement of the light blocking piece 2, the infrared light cannot directly enter the second signal receiving area 13 from the first signal receiving area 12, nor can it directly enter the first signal area from the second signal receiving area 13, thus achieving independent reception of infrared light by the first signal receiving area 12 and the second signal receiving area 13. Figure 3 When the infrared signal receiving assembly 120 is irradiated by two infrared lights, i.e., the first infrared signal and the second infrared signal, if the first signal receiving area 12 can only receive the first infrared signal, and the second infrared receiving area can only receive the second infrared signal, it indicates that the infrared signal receiving assembly 120 is located on the central axis of the first infrared signal and the second infrared signal.

[0030] Referring to Figure 1 and Figure 2 Further, the light blocking piece 2 is detachably connected with the lens body 1, and the light blocking piece 2 separates the lens body 1 into the symmetrical first signal receiving area 12 and the second signal receiving area 13. Specifically, the lens body 1 has a mounting through hole 11 in the middle, and the first signal receiving area 12 and the second signal receiving area 13 are respectively arranged on both sides of the mounting through hole 11. The light blocking piece 2 includes a separation part 21 and a top cover 22, the separation part 21 is fixedly arranged on the top cover 22, and the separation part 21 is inserted into the mounting through hole 11 to separate the first signal receiving area 12 and the second signal receiving area 13 into two independent signal receiving areas. The top cover 22 is arranged on the top of the lens body 1 to isolate the infrared light from the top of the lens body 1, so that the infrared signal cannot enter the first signal receiving area 12 or the second signal receiving area 13 from the top of the lens body 1.

[0031] Further, a limiting boss 111 is arranged in the mounting through hole 11, and a limiting notch 211 is arranged on the separation part 21. When the separation part 21 is inserted into the mounting through hole 11, the limiting boss 111 abuts against the limiting notch 211. The limiting boss 111 and the limiting notch 211 cooperate to limit the installation of the light blocking piece 2. After the light blocking piece 2 is installed in place, the lens body 1 and the top cover 22 can be fixedly connected by means of point gluing or the like to achieve the installation and fixation of the lens body 1 and the light blocking piece 2.

[0032] Further, the lens body 1 is integrally formed, the light blocking piece 2 is also integrally formed, and the light blocking piece 2 is made of infrared blocking material. The infrared blocking material refers to a material that can block or reduce the transmission of infrared radiation, i.e., the infrared light cannot be transmitted through the light blocking piece 2.

[0033] Based on the above structure of the infrared signal receiving assembly 120, the utility model also provides

[0034] Referring to Figure 3 And Figure 4 A cleaning robot 3, comprising the infrared signal receiving assembly 120 as described above, and the front end of the cleaning robot 3 is provided with a photosensitive sensor 31, and the photosensitive sensor 31 is located on the central axis of the cleaning robot 3, the photosensitive sensor 31 comprises a first signal identification area (not shown in the figure) and a second signal identification area (not shown in the figure) symmetrically arranged on both sides of the central axis, the infrared signal receiving assembly 120 is installed on the photosensitive sensor 31, and the first signal identification area and the first signal receiving area 12, the second signal identification area and the second signal receiving area 13 are correspondingly arranged, that is, the first signal receiving area 12 can guide the infrared signal into the first signal identification area, the second signal receiving area 13 can guide the infrared signal into the second signal identification area, and the symmetry axis of the first signal receiving area 12 and the second signal receiving area 13 is parallel to the central axis of the cleaning robot 3. The cleaning robot 3 is also provided with a processing unit for processing the infrared signals of the first signal identification area and the second signal identification area, and the relative positions of the cleaning robot 3 and the infrared signal source can be judged by judging the infrared signals recognized by the two signal identification areas.

[0035] It should be noted that the processing unit on the cleaning robot 3 in the present application processes the signal to obtain the infrared signal information, which is prior art, and does not involve the improvement of the computer program.

[0036] Based on the above structure, the utility model also provides

[0037] A charging system, comprising the cleaning robot 3 as described above, and further comprising a charging base station, wherein the charging base station is provided with a charging base 4, the cleaning robot 3 can be docked on the charging base station and connected with the charging base 4 for charging. The charging base 4 is symmetrically provided with a first infrared emitter 41 and a second infrared emitter 42, wherein the first infrared emitter 41 can emit a first infrared signal, and the second infrared emitter 42 can emit a second infrared signal. The first signal identification area and the second signal identification area on the cleaning robot 3 are used for sensing and identifying the first infrared signal and the second infrared signal.

[0038] During the recharging process, the cleaning robot 3 returns to the position near the charging base through the autonomous navigation system, and then the cleaning robot 3 rotates in place to determine the orientation of the body relative to the charging base through the first infrared signal and the second infrared signal emitted on the charging base. For example, when the first signal receiving area 12 can simultaneously receive the first infrared signal and the second infrared signal, and the second signal receiving area 13 can also simultaneously receive the first infrared signal and the second infrared signal, it indicates that the body should be located in the area that can be simultaneously covered by the first infrared signal and the second infrared signal at this time. At this time, the body can continue to move forward, and the first signal receiving area 12 can only receive the first infrared signal and the second signal receiving area 13 can only receive the second infrared signal through the rotation of the heading. Referring to the position shown in FIG. 9, at this time, the cleaning robot 3 moves to the position of the center line of the charging base, and the charging contacts are in the direction of the charging seat on the charging base. At this time, the cleaning robot 3 can slowly move along the center line to the charging base, and can also fine-tune the heading during the movement to keep the heading always aligned with the recharging axis of the charging base (i.e., keep the state that the first signal receiving area 12 only receives the first infrared signal and the second signal receiving area 13 only receives the second infrared signal). Figure 3

[0039] The infrared signal receiving assembly 120 is arranged on the cleaning robot 3, so that the cleaning robot 3 can adjust the orientation according to the infrared signals introduced by the first signal receiving area 12 and the second signal receiving area 13, effectively improve the recharging alignment accuracy of the cleaning robot 3, and has simple structure and high recharging alignment efficiency.

[0040] The above is a specific description of the preferred embodiment of the present application, but the present application is not limited to the above-mentioned embodiments. Those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application. These equivalent modifications or replacements are all included in the scope defined by the claims of the present application.​

Claims

1. An infrared signal receiving component, used in a cleaning robot, characterized by: It comprises a lens body and a light blocking member. The lens body is arranged on the cleaning robot for receiving infrared signals. The light blocking member is arranged on the lens body for dividing the lens body into at least two independent signal receiving areas.

2. The infrared signal receiving assembly according to claim 1, characterized in that: The signal receiving areas include two, the light blocking member is detachably connected to the lens body, and the light blocking member divides the lens body into a first signal receiving area and a second signal receiving area that are symmetrical.

3. The infrared signal receiving assembly according to claim 2, characterized in that: A mounting through hole is opened in the middle of the lens body, and the light blocking member includes a partition and a top cover. The partition is fixedly connected to the middle of the top cover, the partition is inserted into the mounting through hole, and the top cover is arranged on the top of the lens body.

4. The infrared signal receiving assembly according to claim 3, characterized in that: A limiting boss is provided in the mounting through hole, and a limiting notch is provided on the partition portion, and the limiting notch cooperates with the limiting boss.

5. The infrared signal receiving assembly according to claim 1, characterized in that: The lens body is integrally formed; The light blocking member is integrally formed and made of infrared blocking material.

6. A cleaning robot, characterized in that: It includes the infrared signal receiving component described in any one of claims 1 to 5, a photosensor is provided at the front end of the cleaning robot, the photosensor includes a first signal recognition area and a second signal recognition area located on both sides of the central axis of the cleaning robot, the infrared signal receiving component is arranged on the photosensor, and the first signal recognition area and the first signal receiving area, the second signal recognition area and the second signal receiving area are arranged correspondingly, and the infrared signal receiving component is used to introduce the infrared light signal into the photosensor.

7. A recharging system, characterized by: Including the cleaning robot described in claim 6.

8. The recharging system according to claim 7, characterized in that: It also includes a charging base station, which is provided with a charging base. The charging base is symmetrically provided with a first infrared emitter and a second infrared emitter. The cleaning robot can be used to selectively dock at the charging base station.

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