Forward and reverse rotation detection device for brushless motor of mowing robot

Abstract

The utility model relates to the technical field of motor testing, and discloses a mowing robot brushless motor forward and reverse rotation detection device which comprises a device shell, a first clamp is arranged on the upper side of the device shell, a second clamp is arranged on one side of the first clamp, and a second pushing mechanism is arranged on the side, away from the first clamp, of the second clamp. A motor body is arranged between the side wall of the first clamp and the side wall of the second clamp, a contact is arranged on the lower side of the motor body, a connecting mechanism is arranged on one side of the contact, a controller is arranged at the bottom of the connecting mechanism, and the connecting mechanism and the controller are both arranged in the device shell. According to the brushless motor detection device, through the device shell, the second pushing mechanism, the first clamp, the second clamp, the motor body, the contact, the connecting mechanism and the controller, the problems of tedious operation, low accuracy and limited detection data during brushless motor detection in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of motor testing technology, and in particular to a device for detecting the forward and reverse rotation of a brushless motor for a lawnmower robot. Background Technology

[0002] Brushless motors are widely used in various equipment, such as lawnmower robots, due to their characteristics of low interference, low noise, smooth operation, high output power, and long service life.

[0003] A search revealed Chinese Patent Publication No. CN210690616U, which discloses a brushless motor testing device. The device includes: a frame for fixing a brushless motor with a hub connected to its rotating shaft; and a speed detection mechanism including a first bracket, a wheel rotatably mounted on the first bracket, and a displacement sensor. The shaft of the displacement sensor is connected to the shaft of the wheel, and one side of the wheel is tangentially pressed against one side of a tire mounted on the hub. In this embodiment, the displacement sensor's shaft is connected to the wheel's shaft, and one side of the wheel is tangentially pressed against one side of the tire mounted on the hub. When the hub is driven to rotate by the brushless motor mounted on the frame, it drives the wheel to rotate. During the hub's rotation, the wheel remains linearly tangential to the tire. After detecting the angular velocity of the wheel, the displacement sensor can further obtain the hub's rotational speed, enabling convenient and accurate detection of defective products.

[0004] In actual use, the above-mentioned device requires manual fixing of the motor position. When the brushless motor drives the rotation, the wheel and the tire may have relative displacement. This makes the detection method not intelligent enough, the operation cumbersome, the accuracy low, and the detection data limited. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a forward and reverse rotation detection device for brushless motors of lawnmowers, which aims to solve the problems of cumbersome operation, low accuracy, and limited detection data in the existing technology for brushless motor detection.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a brushless motor detection device for a lawnmower robot, comprising a device housing, a clamp 1 provided on the upper side of the device housing, a clamp 2 provided on one side of the clamp 1, a pushing mechanism 2 provided on the side of the clamp 2 away from the clamp 1, a motor body provided between the side walls of the clamp 1 and the clamp 2, the lower side of the clamp 2 being slidably connected to the upper side of the device housing, a contact point provided on the lower side of the motor body, a connecting mechanism provided on one side of the contact point, a controller provided at the bottom of the connecting mechanism, and both the connecting mechanism and the controller being located inside the device housing.

[0007] The above technical solution involves placing the motor body between clamp one and clamp two, using a pushing mechanism two to fix the motor body in place, and then using contacts and a connecting mechanism to control and detect the motor body via a controller, thereby enabling the motor body to rotate in both directions and thus detecting the motor body's speed and direction.

[0008] As a further description of the above technical solution:

[0009] The connection mechanism includes a connection component and a connector. One side of the connection component is connected to the connector, and the side of the connection component away from the connector is in contact with a contact point. The lower end of the connector is electrically connected to the controller.

[0010] The above technical solution enables the electrical connection between the connector and the controller to transmit the motor's speed and direction signals to the controller via the contact points and connection components. The controller then adjusts the motor's power and direction, thereby facilitating the detection of the motor's speed and direction.

[0011] As a further description of the above technical solution:

[0012] The connection assembly includes a Hall effect connector and a connecting block. One end of the Hall effect connector is fitted to the sidewall of the contact, and the other end of the Hall effect connector is fixedly connected to a ring plate. A spring is provided on the side of the ring plate away from the Hall effect connector. A splitter plate is provided on one end of the spring. A spiral is provided on the side of the splitter plate away from the spring. A fixing block is provided on the outer wall of the spiral on the side away from the splitter plate. The upper end of the connector is connected to the spiral. The Hall effect connector and the splitter plate are electrically connected. The ring plate and the spring are both slidably connected inside the connecting block.

[0013] Through the above technical solution: the controller transmits signals and electrical energy to the spiral wire through the connector, and transmits signals and circuits to the motor body through the contact of the Hall connector and contacts, controls the motor body, and transmits its speed and direction data to the controller for recording through the operation of the motor body.

[0014] As a further description of the above technical solution:

[0015] A vibration sensor is provided on the side of the clamp two away from the clamp one, and the side of the vibration sensor away from the clamp two is provided on the push mechanism two.

[0016] The above technical solution involves recording the vibrations generated by the motor body during operation using a vibration sensor to determine whether the vibration of the motor body is within acceptable limits.

[0017] As a further description of the above technical solution:

[0018] An L-plate is provided on the inner top wall of the device housing. The contact point passes through the L-plate. A pushing mechanism is provided on the inner top wall of the L-plate. One side of the pushing mechanism is fixedly connected to the connecting block, and the other side of the pushing mechanism is located outside the device housing. The fixing block is located inside the L-plate.

[0019] The above technical solution allows for the change of distance between the contact and the Hall connector by pushing mechanism one. When inspecting the motor body, pushing mechanism one moves the connecting block, which in turn moves the Hall connector, causing it to engage with the contact, thus enabling the transmission of signals and electrical energy between the motor body and the controller.

[0020] As a further description of the above technical solution:

[0021] The controller has a base on its lower side, and a damper is located on the lower side of the base. The lower end of the damper is fixedly connected to the inner bottom wall of the device housing.

[0022] The above technical solution achieves vibration reduction for the controller by transmitting the vibration generated by the motor body to the device housing when the motor body is running. The vibration of the device housing is transmitted to the base through the damper.

[0023] As a further description of the above technical solution:

[0024] The device housing has a shock-absorbing pad on the lower side, a switch and a display screen on the upper side, and a display on one side.

[0025] The above technical solutions reduce the impact of vibration on the detection by using shock-absorbing pads, control the start and stop of the device by using a switch, and facilitate the display and recording of the detection results by using a display screen and device housing.

[0026] As a further description of the above technical solution:

[0027] The controller, display, switch, screen, vibration sensor, spiral wire, and connector are all electrically connected.

[0028] The above technical solution achieves the intelligent detection function of the device through the cooperation between the controller, display, switch, screen, vibration sensor, spiral wire and connector.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, the device housing provides support for clamp one, clamp two, push mechanism two, and controller. The motor body is fixed by clamp one and clamp two. Through the connection between the motor body and the contacts, the contact and the connecting mechanism, and the connection between the connecting mechanism and the controller, the controller's function on the motor body and the mutual transmission of signals between the motor body and the controller are realized. This solves the problems of cumbersome operation, low accuracy, and limited detection data in the existing technology for brushless motor testing.

[0031] 2. In this utility model, by pushing mechanism two to fix clamp two, clamp one and clamp two clamp the motor body. Vibration sensor detects the vibration of the motor body in real time. The controller records and processes the vibration sensor signal, thereby accurately detecting the operating vibration state of the brushless motor at a preset speed, thus realizing the detection of whether the brushless motor is qualified. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of a brushless motor detection forward and reverse rotation device for a lawnmower robot proposed in this utility model;

[0033] Figure 2 This is a schematic diagram of the internal structure of the housing of a brushless motor detection and reversal device for a lawnmower robot proposed in this utility model.

[0034] Figure 3 This is a three-dimensional structural diagram of the connecting components of a brushless motor detection forward and reverse rotation device for a lawnmower robot proposed in this utility model;

[0035] Figure 4 This is a schematic cross-sectional view of the connecting block of a brushless motor detection forward and reverse rotation device for a lawnmower robot proposed in this utility model.

[0036] Legend:

[0037] 1. Device housing; 2. Display; 3. Motor body; 4. Switch; 5. Display screen; 6. Fixture 1; 7. L-plate; 8. Push mechanism 1; 9. Fixture 2; 10. Vibration sensor; 11. Push mechanism 2; 12. Shock-absorbing pad; 13. Controller; 14. Base; 15. Damper; 16. Connecting mechanism; 160. Connecting assembly; 1600. Hall connector; 1601. Connecting block; 1602. Fixing block; 1603. Ring plate; 1604. Spring; 1605. Divider plate; 1606. Spiral wire; 161. Connector; 17. Contact. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Reference Figure 1 and Figure 2 An embodiment of this utility model provides a brushless motor detection device for a lawnmower robot, comprising a device housing 1, a clamp 6 on the upper side of the device housing 1, a clamp 9 on one side of the clamp 6, a pushing mechanism 11 on the side of the clamp 9 away from the clamp 6, a motor body 3 between the side walls of the clamp 6 and the clamp 9, the lower side of the clamp 9 and the upper side of the device housing 1 being slidably connected, a contact 17 on the lower side of the motor body 3, a connecting mechanism 16 on one side of the contact 17, a controller 13 at the bottom of the connecting mechanism 16, and both the connecting mechanism 16 and the controller 13 being located inside the device housing 1.

[0040] In this embodiment, Figure 2 The front, back, left, and right are the orientations. One end of contact 17 is used to connect the signal line of the Hall sensor inside the motor body 3 to the positive and negative poles of the motor rotation. The controller 13 is used for signal transmission, processing and other functions, which is existing technology. The motor body 3 is a brushless motor with a Hall sensor inside. The second pushing mechanism 11 is a cam-linkage structure, which is used to push the second clamp 9 to move horizontally on the device housing 1, so that the first clamp 6 and the second clamp 9 clamp the motor body 3. It includes a connecting plate, a lever rotatably connected to one side of the connecting plate, a connecting rod slidably connected inside the other side of the connecting plate, and a bent piece rotatably connected to one end of the connecting rod. In use, by moving the lever, the bent piece is driven to move, which in turn drives the connecting rod to move horizontally. The position of the connecting rod is limited by the interference between the lever and the connecting plate. All of the above are existing technologies.

[0041] Specifically, when using this device, the housing 1 provides support for clamp 6, clamp 9, push mechanism 11, controller 13, and connecting mechanism 16. The motor body 3 is placed between clamp 6 and clamp 9, so that the contact 17 passes through the housing 1 and enters the interior of the housing 1 to fit against one side of the connecting mechanism 16. By actuating the push mechanism 11, the housing 1 and clamp 9 slide horizontally, causing clamp 9 to move horizontally and clamp the motor body 3. The controller 13 transmits electrical energy and signals to the motor body 3 through the connecting mechanism 16 and contact 17, causing the motor body 3 to rotate in different directions and speeds. The Hall sensor inside the motor body 3 detects the rotation of the motor body 3 and transmits the signal to the controller 13. The controller 13 analyzes and processes the signal to obtain the speed and direction of the motor body 3 in real time. This solves the problems of cumbersome operation, low accuracy, and limited detection data in the existing technology for brushless motor detection.

[0042] Reference Figure 2 and Figure 3 The connection mechanism 16 includes a connection component 160 and a connector 161. One side of the connection component 160 is connected to the connector 161, and the side of the connection component 160 away from the connector 161 is in contact with the contact 17. The lower end of the connector 161 is electrically connected to the controller 13.

[0043] Specifically, the controller 13 transmits signals and electrical energy to the connection component 160 through the connector 161. Through the contact 17 and the contact component 160, the signals are transmitted to the contact 17 and then to the motor body 3 to control the operation of the motor body 3. Similarly, when the motor body 3 is running, its internal Hall sensor transmits signals to the controller 13 through the contact 17, the connection component 160 and the connector 161 for analysis and processing, thereby realizing the connection function of the connection mechanism 16.

[0044] Reference Figure 2 , Figure 3 and Figure 4 The connection assembly 160 includes a Hall connector 1600 and a connecting block 1601. One end of the Hall connector 1600 is attached to the side wall of the contact 17, and the other end of the Hall connector 1600 is fixedly connected to an annular plate 1603. A spring 1604 is provided on the side of the annular plate 1603 away from the Hall connector 1600. A splitter plate 1605 is provided on one end of the spring 1604. A spiral wire 1606 is provided on the side of the splitter plate 1605 away from the spring 1604. A fixing block 1602 is provided on the outer wall of the end of the spiral wire 1606 away from the splitter plate 1605. The upper end of the connector 161 is connected to the spiral wire 1606. The Hall connector 1600 and the splitter plate 1605 are electrically connected. The annular plate 1603 and the spring 1604 are both slidably connected inside the connecting block 1601.

[0045] Specifically, the Hall connector 1600 is used to connect with the signal line and positive and negative lines on the motor body 3 to realize the transmission of signals and electrical energy. The spiral wire 1606 is a spiral-shaped wire that can be stretched and extended. The splitter plate 1605 is used to gather multiple spiral wires 1606 and arrange them in a certain order. The connector 161 is used to connect with the controller 13. All of the above are existing technologies.

[0046] The connector 161 and the spiral 1606 are supported by the fixing block 1602. The electrical energy and signal of the controller 13 are transmitted to the spiral 1606 through the connector 161, and then collected and distributed by the distribution plate 1605, and then transmitted to the Hall connector 1600. The Hall connector 1600 is transmitted to the motor body 3 through the contact between the contact 17. During this process, the Hall connector 1600 and the contact 17 are in contact with a certain pressure, which makes the Hall connector 1600 move horizontally. Through the sliding connection between the ring plate 1603 and the connecting assembly 160, the connection between the Hall connector 1600 and the ring plate 1603 drives the ring plate 1603 to move horizontally and compress the spring 1604. Through the rebound potential energy of the spring 1604, the Hall connector 1600 and the contact 17 maintain a suitable pressure, thereby improving the stability of the connection between the connecting mechanism 16 and the contact 17.

[0047] Reference Figure 1 A vibration sensor 10 is provided on the side of clamp 2 9 away from clamp 1 6, and the side of vibration sensor 10 away from clamp 2 9 is provided on push mechanism 2 11.

[0048] Specifically, by pushing mechanism 211 to fix fixture 29, the motor body 3 between fixture 16 and fixture 29 is fixed. When the motor body 3 runs, the vibration it generates is detected by vibration sensor 10 on fixture 29, thereby accurately detecting the running vibration state of the brushless motor at the preset speed, and realizing the detection of whether the brushless motor is qualified.

[0049] Reference Figure 2 , Figure 3 An L-plate 7 is provided on the inner top wall of the device housing 1. The contact 17 passes through the L-plate 7. A pushing mechanism 8 is provided on the inner top wall of the L-plate 7. One side of the pushing mechanism 8 is fixedly connected to the connecting block 1601, and the other side of the pushing mechanism 8 is provided on the outside of the device housing 1. The fixing block 1602 is provided inside the L-plate 7.

[0050] Specifically, the push mechanism 18 and push mechanism 21 have the same composition and function. The device housing 1 supports the L plate 7, and the L plate 7 supports the push mechanism 18 and the fixing block 1602. After the motor body 3 is placed, by moving the push mechanism 18, the connecting block 1601 is driven to move closer to the contact 17, which in turn drives the Hall connector 1600, the ring plate 1603, the spring 1604 and the dividing plate 1605 to move horizontally. Through the characteristics of the spiral 1606, the spiral 1606 unfolds. Through the locking of the push mechanism 18 itself, a certain pressure is generated between the Hall connector 1600 and the contact 17, which drives the Hall connector 1600 to contract inward into the connecting block 1601, which in turn drives the ring plate 1603 to move horizontally and squeeze the spring 1604. Through the elastic potential energy of the spring 1604, a certain pressure is always maintained between the contact 17 and the Hall connector 1600, thereby achieving the stability of the connection between the contact 17 and the Hall connector 1600.

[0051] Reference Figure 2 A base 14 is provided on the lower side of the controller 13, and a damper 15 is provided on the lower side of the base 14. The lower end of the damper 15 is fixedly connected to the inner bottom wall of the device housing 1.

[0052] Specifically, the damper 15 is used to dissipate vibration, which is a prior art technology. When the motor body 3 is running, the vibration it generates is transmitted to the device housing 1. The damper 15 reduces and dissipates the vibration, thereby achieving vibration reduction of the base 14 and reducing the impact of vibration on the controller 13.

[0053] Reference Figure 1 A shock-absorbing pad 12 is provided on the lower side of the device housing 1, a switch 4 and a display screen 5 are provided on the upper side of the device housing 1, and a display 2 is provided on one side of the device housing 1.

[0054] Specifically, display 2 is used to display the test data, and display screen 5 is used to input instructions. All of the above are existing technologies. The shock-absorbing pad 12 can be made of rubber. The shock-absorbing pad 12 reduces the impact of vibration on the device housing 1 and prevents the device housing 1 from shifting, which would affect the test. When using the device, the switch 4 is used to start and stop the device. The test results are displayed in real time on display 2, and control signals are input on display screen 5, thus realizing the convenience of recording test results.

[0055] Reference Figure 1 , Figure 2 and Figure 4 The controller 13, display 2, switch 4, display screen 5, vibration sensor 10, and connector 161 are all electrically connected.

[0056] Specifically, when using this device, it is powered by a power supply, the start signal is transmitted to the controller 13 via switch 4, the command to be detected is input via display screen 5, the controller 13 transmits electrical energy and signals to connector 161, and then to motor body 3, causing motor body 3 to run. During the operation of motor body 3, the vibration generated by motor body 3 is detected in real time by vibration sensor 10, and the signal is output to controller 13 for processing and then displayed on display screen 2. The speed and direction of motor body 3 are transmitted to controller 13, processed by controller 13, and then displayed on display screen 2, thereby improving the detection efficiency of the detection device.

[0057] Working principle: When using this device, the motor body 3 is placed between clamp 6 and clamp 9, so that the contact 17 passes through the device housing 1 and L plate 7 and enters the interior of the device housing 1. By actuating the push mechanism 11, the clamp 9 moves horizontally through the horizontal sliding connection between the device housing 1 and clamp 9, thereby fixing the motor body 3.

[0058] By actuating the push mechanism 8, the connecting block 1601 is moved closer to the contact 17, which in turn causes the Hall connector 1600, ring plate 1603, spring 1604, and dividing plate 1605 to move horizontally. Due to the characteristics of the spiral 1606, the spiral 1606 unfolds. Through the locking of the push mechanism 8 itself, a certain pressure is generated between the Hall connector 1600 and the contact 17, causing the Hall connector 1600 to contract inward towards the connecting block 1601. This, in turn, causes the ring plate 1603 to move horizontally and compress the spring 1604. Through the elastic potential energy of the spring 1604, a certain pressure is always maintained between the contact 17 and the Hall connector 1600, thereby achieving the stability of the connection between the contact 17 and the Hall connector 1600.

[0059] The power switch 4 transmits the start signal to the controller 13, and the display screen 5 inputs relevant instructions. The controller 13 transmits electrical energy and signals to the connecting mechanism 16, and through the contact 17, transmits electrical energy and signals to the motor body 3, causing the motor body 3 to run. During the operation of the motor body 3, the vibration sensor 10 detects the vibration generated by the operation of the motor body 3 in real time, and outputs the signal to the controller 13 for processing and display on the display 2. The speed and direction of the motor body 3 are transmitted to the controller 13, processed by the controller 13, and displayed on the display 2, so that the speed and direction of the motor body 3 can be obtained in real time. This solves the problems of cumbersome operation, low accuracy, and limited detection data in the existing technology for brushless motor detection.

[0060] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for detecting forward and reverse rotation of a brushless motor of a mowing robot, comprising a device housing (1), characterized in that: A clamp 1 (6) is provided on the upper side of the device housing (1), a clamp 2 (9) is provided on one side of the clamp 1 (6), a push mechanism 2 (11) is provided on the side of the clamp 2 (9) away from the clamp 1 (6), a motor body (3) is provided between the side walls of the clamp 1 (6) and the clamp 2 (9), the lower side of the clamp 2 (9) is slidably connected to the upper side of the device housing (1), a contact (17) is provided on the lower side of the motor body (3), a connecting mechanism (16) is provided on one side of the contact (17), a controller (13) is provided at the bottom of the connecting mechanism (16), and both the connecting mechanism (16) and the controller (13) are located inside the device housing (1).

2. The device according to claim 1, wherein the device is characterized in that: The connection mechanism (16) includes a connection component (160) and a connector (161). One side of the connection component (160) is connected to the connector (161), and the side of the connection component (160) away from the connector (161) is attached to a contact (17). The lower end of the connector (161) is electrically connected to the controller (13).

3. The device according to claim 2, wherein the device is characterized in that: The connection assembly (160) includes a Hall connector (1600) and a connecting block (1601). One end of the Hall connector (1600) is fitted against the side wall of the contact (17). The other end of the Hall connector (1600) is fixedly connected to a ring plate (1603). A spring (1604) is provided on the side of the ring plate (1603) away from the Hall connector (1600). A splitter plate (1605) is provided on one end of the spring (1604). 605) A spiral (1606) is provided on the side away from the spring (1604). A fixing block (1602) is provided on the outer wall of the end of the spiral (1606) away from the dividing plate (1605). The upper end of the connector (161) is connected to the spiral (1606). The Hall connector (1600) and the dividing plate (1605) are electrically connected. The ring plate (1603) and the spring (1604) are slidably connected inside the connecting block (1601).

4. The device according to claim 1, characterized in that: A vibration sensor (10) is provided on the side of the clamp two (9) away from the clamp one (6), and the vibration sensor (10) is provided on the side of the push mechanism two (11) away from the clamp two (9).

5. The device according to claim 3, characterized in that: An L-plate (7) is provided on the inner top wall of the device housing (1). The contact point (17) passes through the L-plate (7). A pushing mechanism (8) is provided on the inner top wall of the L-plate (7). One side of the pushing mechanism (8) is fixedly connected to the connecting block (1601). The other side of the pushing mechanism (8) is provided on the outside of the device housing (1). The fixing block (1602) is provided inside the L-plate (7).

6. The device according to claim 1, characterized in that it is a mowing robot brushless motor positive and negative rotation detection device. The controller (13) has a base (14) on its lower side, and a damper (15) is provided on the lower side of the base (14). The lower end of the damper (15) is fixedly connected to the inner bottom wall of the device housing (1).

7. The device according to claim 1, characterized in that it is a mowing robot brushless motor positive and negative rotation detection device. A shock-absorbing pad (12) is provided on the lower side of the device housing (1), a switch (4) and a display screen (5) are provided on the upper side of the device housing (1), and a display screen (2) is provided on one side of the device housing (1).

8. The device according to claim 1, characterized in that it is a mowing robot brushless motor detection forward and reverse rotation device. The controller (13), display (2), switch (4), display screen (5), vibration sensor (10), and connector (161) are all electrically connected.

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