Snow sweeper

Abstract

The invention discloses a snow sweeper which comprises a snow collecting device, a snow sweeping device, a snow sweeping device, a snow sweeping device and a snow sweeping device. The snow collecting device comprises a snow collecting element and a first motor driving the snow collecting element to rotate; the main shell is used for supporting the snow collecting device; a walking assembly; the power supply device is used for supplying power to the first motor; wherein the snow collecting element rotates around the rotating axis, a coordinate system with a point on the rotating axis of the snow collecting element as the original point, the front-back direction as the X axis and the up-down direction as the Y axis is established, the forward direction is the positive direction of the X axis, and the upward direction is the positive direction of the Y axis; the projection of the first motor in the plane where the coordinate system is located is located in an angle area with the original point as the vertex and located in the plane where the coordinate system is located, the first edge of the angle area is located in the first quadrant of the coordinate system, and the included angle between the first edge and the positive direction of the Y axis is smaller than or equal to 60 degrees. The second edge of the angle area is located in the second quadrant of the coordinate system and forms an included angle smaller than or equal to 80 degrees with the positive direction of the Y axis. The snowplow is reasonable in structural arrangement, and the snow collecting device is convenient to control.

Description

Technical Field

[0001] The present application relates to a garden tool, in particular to a snow sweeper. Background Art

[0002] A snowplow in the related art generally includes a snow collecting device and a snow throwing device. During operation, the snowplow collects snow on the ground through the snow collecting device, and then throws the snow to a designated location through the snow throwing device. Usually, the motors of the snow collecting device and the snow throwing device of the snowplow are arranged at the rear end of the snow throwing device, and the motor drives both the snow throwing device and the snow collecting device, which makes it inconvenient to control the snow collecting device.

[0003] This section provides background information related to the present application which is not necessarily prior art. Summary of the invention

[0004] One object of the present application is to solve or at least alleviate part or all of the above problems. To this end, one object of the present application is to provide a snowplow with a reasonable structure and convenient control.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions: A snowplow comprises: a snow collecting device, comprising a snow collecting element for collecting snow and a first motor for driving the snow collecting element to rotate; a main shell for supporting the snow collecting device; a walking assembly for driving the snowplow to walk on the ground; a power supply device for providing power to the first motor; wherein the snow collecting element rotates around a rotation axis, and a coordinate system is established with a point on the rotation axis of the snow collecting element as the origin, the front-to-back direction as the X-axis, and the up-down direction as the Y-axis, the forward direction as the positive direction of the X-axis, and the upward direction as the positive direction of the Y-axis, the projection of the first motor in the plane where the coordinate system is located is located in an angle area with the origin as the vertex and located in the plane where the coordinate system is located, the first side of the angle area is located in the first quadrant of the coordinate system and the angle between it and the positive direction of the Y-axis is less than or equal to 60 degrees, and the second side of the angle area is located in the second quadrant of the coordinate system and the angle between it and the positive direction of the Y-axis is less than or equal to 80 degrees.

[0006] In some embodiments, the projection of the first motor in the plane where the coordinate system is located is located in a circular area with the origin as the center and located in the plane where the coordinate system is located, and the radius of the circular area is less than or equal to 0.7 m.

[0007] In some embodiments, the first side of the angle area is located in the first quadrant of the coordinate system and the angle between it and the positive direction of the Y axis is less than or equal to 30 degrees, and the second side of the angle area is located in the second quadrant of the coordinate system and the angle between it and the positive direction of the Y axis is less than or equal to 60 degrees.

[0008] In some embodiments, the first motor is disposed on an upper side of the snow collecting element.

[0009] In some embodiments, the first motor is disposed on an upper side of the rotation axis of the snow collecting element.

[0010] In some embodiments, the main shell includes: a snow collecting hood for installing a snow collecting element, the snow collecting hood includes a top wall and two side walls respectively arranged on both sides of the top wall, and the projection of the first motor in a plane perpendicular to the front-to-back direction is located between the projections of the two side walls in a plane perpendicular to the front-to-back direction.

[0011] In some embodiments, the main shell includes: a snow collecting cover for installing a snow collecting element, the snow collecting cover includes a top wall and two side walls respectively arranged on both sides of the top wall, and the first motor is at least partially arranged on the upper side of the top wall.

[0012] In some embodiments, the main housing further includes a first motor housing, the first motor housing is formed with a first receiving space for receiving the first motor, and the first motor housing is mounted to the upper side of the top wall.

[0013] In some embodiments, the snowplow also includes: a snow throwing device, including a snow throwing element for throwing snow collected by the snow collecting device, a snow throwing cylinder for guiding the throwing direction of the snow, and a second motor for driving the snow throwing element to rotate; wherein, in the front-to-back direction, the first motor is arranged on the front side of the second motor.

[0014] A snowplow comprises: a snow collecting device, comprising a snow collecting element for collecting snow and a first motor for driving the snow collecting element to rotate; a snow throwing device, comprising a snow throwing element for throwing snow collected by the snow collecting device, a snow throwing cylinder for guiding the throwing direction of the snow, and a second motor for driving the snow throwing element to rotate; a main shell for supporting the snow collecting device and the snow throwing device; a walking assembly for driving the snowplow to walk on the ground; a power supply device for providing power to the first motor and the second motor; wherein the main shell comprises: a snow collecting cover for installing the snow collecting element, the snow collecting cover comprises a top wall and two side walls respectively arranged on both sides of the top wall, and the first motor is at least partially arranged on the upper side of the top wall.

[0015] A snowplow comprises: a snow collecting device, comprising a snow collecting element for collecting snow and a first motor for driving the snow collecting element to rotate; a snow throwing device, comprising a snow throwing element for throwing snow collected by the snow collecting device, a snow throwing cylinder for guiding the throwing direction of the snow, and a second motor for driving the snow throwing element to rotate; a main shell for supporting the snow collecting device and the snow throwing device; a walking assembly for driving the snowplow to walk on the ground; a power supply device for providing power to the first motor and the second motor; and a control device configured to control the rotation speed of the first motor at least according to the state of the snow and the walking speed of the walking assembly.

[0016] In some embodiments, when the snow state remains unchanged, the greater the travel speed of the travel component, the greater the rotation speed of the first motor.

[0017] In some embodiments, the state of the snow includes the thickness of the snow and / or the density of the snow. When the walking speed of the walking component remains unchanged, the greater the thickness and / or density of the snow, the greater the rotation speed of the first motor.

[0018] In some embodiments, the state of the snow includes the thickness of the snow and / or the density of the snow.

[0019] In some embodiments, the snowplow also includes: a memory, which stores a mapping relationship between the state of snow, the walking speed of the walking component and the rotational speed of the first motor; wherein, after obtaining the state of snow and the walking speed, the control device obtains the rotational speed of the first motor according to the mapping relationship.

[0020] In some embodiments, the mapping relationship includes: a relationship table, and / or a relationship function.

[0021] In some embodiments, when the control device controls the rotation speed of the first motor, the rotation speed of the second motor does not change with the change of the rotation speed of the first motor.

[0022] In some embodiments, when the control device controls the rotational speed of the first motor to change, the control device controls the rotational speed of the second motor to remain unchanged.

[0023] In some embodiments, the snowplow further includes: a detection device for detecting the state of snow.

[0024] A snowplow comprises: a snow collecting device, comprising a snow collecting element for collecting snow and a first motor for driving the snow collecting element to rotate; a snow throwing device, comprising a snow throwing element for throwing snow collected by the snow collecting device, a snow throwing cylinder for guiding the throwing direction of the snow, and a second motor for driving the snow throwing element to rotate; a main shell for supporting the snow collecting device and the snow throwing device; a walking assembly for driving the snowplow to walk on the ground; a power supply device for providing power to the first motor and the second motor; and a control device configured to control the rotation speed of the first motor at least according to the walking speed of the walking assembly.

[0025] A snowplow comprises: a snow collecting device, comprising a snow collecting element for collecting snow and a first motor for driving the snow collecting element to rotate; a snow throwing device, comprising a snow throwing element for throwing snow collected by the snow collecting device, a snow throwing cylinder for guiding the throwing direction of the snow, and a second motor for driving the snow throwing element to rotate; a main shell for supporting the snow collecting device and the snow throwing device; a walking assembly for driving the snowplow to walk on the ground; a power supply device for providing power to the first motor and the second motor; and a control device, configured to control the walking speed of the walking assembly and the rotation speed of the first motor at least according to the state of the snow.

[0026] In some embodiments, the snowplow also includes: a memory, which stores a mapping relationship between the state of snow, the walking speed of the walking component and the rotational speed of the first motor; wherein, after obtaining the state of snow, the control device obtains the walking speed of the walking component and the rotational speed of the first motor according to the mapping relationship.

[0027] In some embodiments, the mapping relationship includes: a relationship table, and / or a relationship function.

[0028] In some embodiments, when the control device controls the rotation speed of the first motor, the rotation speed of the second motor does not change with the change of the rotation speed of the first motor.

[0029] In some embodiments, when the control device controls the rotational speed of the first motor to change, the control device controls the rotational speed of the second motor to remain unchanged.

[0030] In some embodiments, the snowplow further includes: a detection device for detecting the state of snow.

[0031] In some embodiments, the control device is configured to adjust the rotation speed of the first motor according to the state of snow, and then control the walking speed of the walking component according to the state of snow and the rotation speed of the first motor.

[0032] In some embodiments, when the snow state parameter is greater than a first preset value, the rotation speed of the first motor is kept constant at a first constant rotation speed value.

[0033] In some embodiments, when the snow state parameter is less than a first preset value, the rotation speed of the first motor is less than a first constant rotation speed value.

[0034] In some embodiments, when the state parameter of the snow is greater than a first preset value, the walking speed of the walking component keeps gradually decreasing as the state parameter of the snow increases.

[0035] In some embodiments, when the state parameter of snow is less than a first preset value, the walking speed of the walking component is constant at a second constant speed value.

[0036] A snowplow comprises: a snow collecting device, comprising a snow collecting element for collecting snow and a first motor for driving the snow collecting element to rotate; a snow throwing device, comprising a snow throwing element for throwing snow collected by the snow collecting device, a snow throwing cylinder for guiding the throwing direction of the snow, and a second motor for driving the snow throwing element to rotate; a main shell for supporting the snow collecting device and the snow throwing device; a walking assembly for driving the snowplow to walk on the ground; a power supply device for providing power to the first motor and the second motor; a control device, configured to control the walking speed of the walking assembly according to at least the state of snow; wherein, when the state parameter of the snow is less than a preset value, the walking speed of the walking assembly is kept constant at a constant speed value, and when the state parameter of the snow is greater than the preset value, the walking speed of the walking assembly is less than the constant speed value.

[0037] A snowplow comprises: a snow collecting device, comprising a snow collecting element for collecting snow and a first motor for driving the snow collecting element to rotate; a snow throwing device, comprising a snow throwing element for throwing snow collected by the snow collecting device, a snow throwing cylinder for guiding the throwing direction of the snow, and a second motor for driving the snow throwing element to rotate; a main shell for supporting the snow collecting device and the snow throwing device; a walking assembly, which drives the snowplow to walk on the ground and also comprises a walking motor; a mode setting member for allowing a user to operate to set the working mode of the snowplow; a control device connected to the mode setting member; wherein the mode setting member can at least enable the snowplow to enter a first working mode and a second working mode, when the snowplow is in the first working mode, the control device controls the walking motor to run at a first preset speed and controls the first motor to run at a second preset speed, and when the snowplow is in the second working mode, the control device controls the walking motor to run at a third preset speed and controls the first motor to run at a fourth preset speed; wherein the third preset speed is different from the first preset speed, or the fourth preset speed is different from the second preset speed.

[0038] In some embodiments, the third preset rotational speed is different from the first preset rotational speed, and the fourth preset rotational speed is different from the second preset rotational speed.

[0039] In some embodiments, the mode setting component is also configured to enable the snowplow to enter a third operating mode. When the snowplow is in the third operating mode, the control device controls the travel motor to operate at a fifth preset speed and controls the first motor to operate at a sixth preset speed.

[0040] In some embodiments, when the control device controls the rotation speed of the first motor, the rotation speed of the second motor does not change with the rotation speed of the first motor.

[0041] In some embodiments, when the control device controls the rotational speed of the first motor to change, the control device controls the rotational speed of the second motor to remain unchanged.

[0042] In some embodiments, a first mark corresponding to the first working mode is also provided on the main housing.

[0043] In some embodiments, the first mark is set to allow the user to observe whether the thickness of the snow reaches the first mark position to switch the operation mode setting member to the first working mode.

[0044] In some embodiments, the main housing further includes a snow collecting cover, and the first mark is disposed on the snow collecting cover at a first height from the ground.

[0045] The benefit of the present application lies in that the first motor of the snowplow driving the snow collecting device is reasonably positioned to facilitate the separate driving of the snow collecting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a three-dimensional diagram of a snowplow according to an embodiment of the present application; Figure 2 yes Figure 1 The plan view of the snowplow in; Figure 3 yes Figure 1 A front view of a snowplow in; Figure 4 yes Figure 1 A perspective view of a snowplow with the main housing removed; Figure 5 yes Figure 4 A top view of the structure shown in; Figure 6 yes Figure 1 A plan view of the traveling assembly, snow collecting device and snow throwing device of the snowplow; Figure 7 yes Figure 6 A perspective view of the structure shown; Figure 8 yes Figure 1 A three-dimensional diagram of a snow collecting device, a snow throwing device and a part of the main housing of a snowplow; Fig. 9 yes Figure 8 A perspective view of the structure shown in another perspective; Fig.10 yes Figure 8 a plan view of the structure shown; Fig.11 yes Figure 1 The connection diagram of some modules of the snowplow; Fig.12 yes Figure 1 A diagram showing bus current variations of the first motor and the second motor of the snowplow; Figures 13A to 13B yes Figure 1 An example table of the rotational speeds of various rotating elements of a snowplow at different snow thicknesses; Fig.14 In Figure 1 A control flow chart of a snowplow; Fig.15 yes Figure 1 Another example table of the rotational speeds of various rotating elements of another type of snowplow under different snow thicknesses; Figures 16A to 16C yes Figure 1 The relationship between the working condition of the snowplow and the snow thickness, travel speed, amount of snow traveled and the amount of snow collected by the snow collecting element; Fig.17 yes Figure 1 Another control flow chart of the snowplow in; Fig.18 yes Figure 1A plan view of the snowplow when the detection element is rotated through a certain angle; Fig.19 is a plan view of a snowplow according to another embodiment of the present application; Fig. 20 is a plan view of a snowplow according to another embodiment of the present application; Fig.21 yes Fig. 20 The connection diagram of some modules of the snowplow; Fig. 22 yes Fig. 20 An example table showing the relationship between the working conditions of a snowplow and the thickness of snow, travel speed, etc.; Fig.23 is a three-dimensional diagram of a snowplow according to an embodiment of the present application; Fig.24 yes Fig.23 A plan view of the power unit, snow removal device and travel assembly of the snowplow; Fig.25 yes Fig.23 A perspective view of the snow removal device and part of the main housing; Fig.26 yes Fig.23 A module control diagram of a snowplow in; Fig. 27 yes Fig.23 Another module control diagram of the snowplow in; Fig.28 is a perspective view of a power device and a snow removal device in a snowplow according to another embodiment; Fig.29 yes Fig.28 a plan view of the structure shown; Fig.30 is a perspective view of a power device and a snow removal device in a snowplow according to another embodiment; Fig.31 yes Fig.30 a plan view of the structure shown; Fig.32 is a perspective view of a power device and a snow removal device in a snowplow according to another embodiment; Fig.33 yes Fig.32 a plan view of the structure shown; Fig.34 is a perspective view of a power device and a snow removal device in a snowplow according to another embodiment; Fig.35 yes Fig.34 a plan view of the structure shown; Fig.36 is a perspective view of a power device and a snow removal device in a snowplow according to another embodiment; Fig.37 yes Fig.36 a plan view of the structure shown; Fig.38 is a perspective view of a power device, a snow removal device and a portion of a main housing in a snowplow of another embodiment; Fig.39 yes Fig.38 A three-dimensional view of the structure from another angle; Fig.40 yes Fig.38 A three-dimensional diagram of the power unit and snow removal device; Fig.41 yes Fig.40 a plan view of the structure shown; Fig.42 is a perspective view of a power device and a snow removal device in a snowplow according to another embodiment; Fig.43 yes Fig.42 a plan view of the structure shown; Fig.44 is a perspective view of a power device and a snow removal device in a snowplow according to another embodiment; Fig.45 yes Fig.44 A plan view of the structure shown. DETAILED DESCRIPTION

[0047] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0048] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0049] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0050] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0051] In this application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, etc. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0052] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0053] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0054] In this application, the terms "controller", "processor", "central processing unit", "CPU", and "MCU" are interchangeable. When a unit "controller", "processor", "central processing unit", "CPU", or "MCU" is used to perform a specific function, unless otherwise specified, these functions can be performed by a single unit or multiple units.

[0055] In the present application, the terms “device”, “module” or “unit” may be implemented in the form of hardware or software to achieve specific functions.

[0056] In this application, the terms "calculate", "judge", "control", "determine", "identify", etc. refer to the operations and processes of a computer system or similar electronic computing device (e.g., controller, processor, etc.).

[0057] like Figure 1 The snowplow 100 of one embodiment shown is used for users to clear snow on the ground such as roads, courtyards, or gardens. In this embodiment, the snowplow 100 is taken as an example of a rear-walk snowplow 100. When working, the user holds the rear-walk snowplow 100 and pushes the rear-walk snowplow 100 behind the rear-walk snowplow 100 to walk on the ground, or walks on the ground with the rear-walk snowplow 100. In some embodiments, the snowplow 100 can also be an intelligent snowplow 100, which can move on the ground to clear the snow on the ground without the user following. Or, in some embodiments, the snowplow 100 can also be a manned snowplow 100, and the user can be supported by the manned snowplow 100 and walk together with the manned snowplow 100. It can be understood that the specific structural form of the snowplow 100 is not limited by the relationship with the user. As long as the snowplow 100 includes at least part of the solutions described below in this application, it belongs to the scope of protection of this application.

[0058] In order to facilitate the description of the technical solution of the application, the following are also defined: Figure 1 The directions of the arrows in the figure are upward, downward, front, rear, left and right. Of course, the directions of the present embodiment are not limited thereto.

[0059] like Figure 1As shown, the snowplow 100 includes: a main body 10 and a handle device 20, and the handle device 20 is connected to the rear end of the main body 10 for the user to hold and operate. The main body 10 includes: a main housing 11, a walking assembly 12, a snow collecting device 13 and a snow throwing device 14. The main housing 11 serves as the main frame of the snowplow 100 and is used to support the snow collecting device 13 and the snow throwing device 14. The walking assembly 12 is used to support the main housing 11 to drive the snowplow 100 to walk on the ground. The snow collecting device 13 is used to stir the snow on the ground and collect the snow into the main housing 11, and the snow throwing device 14 is used to throw the snow collected by the snow collecting device 13 to a preset position outside the snowplow 100. In this way, the snowplow 100 can clear the snow on the ground, throw the snow to places where pedestrians do not often go, or clear the snow together.

[0060] like Figures 1 to 3 The handle device 20 is connected to the rear end of the main housing 11. When the user pushes or walks with the snowplow 100, the user stands behind the snowplow 100 and holds the handle device 20. The handle device 20 includes: a connecting rod, an operating component 22, and a gripping handle 23. The connecting rod connects the operating component 22 and the main unit 10. The gripping handle 23 is arranged at one end of the connecting rod away from the main unit 10. The gripping handle 23 includes a left handle and a right handle, and the left handle and the right handle are respectively provided for the user to hold with both hands. The operating component 22 includes: an operating table and a plurality of operating members, the operating table is connected to two connecting rods, and a plurality of operating switches are installed on the operating table. The operating members are operated by the user to control the snowplow 100, such as controlling the walking component 12, the snow collecting device 13, and the snow throwing device 14. A plurality of operating switches are also arranged in the operating table, and the plurality of operating switches are electrically connected to the plurality of operating members. The handle device 20 also includes: a connecting cable, and the connecting cable is used to electrically connect the plurality of operating switches to the main unit 10. In some embodiments, the operating component 22 may also include a remote controller for controlling the host 10. The remote controller may be separately provided from the host 10. The remote controller may be removed from the snowplow 100 or independently provided relative to the snowplow 100 so that the user can control the snowplow 100.

[0061] The main housing 11 is connected to the end of the connecting rod away from the operating assembly 22. The main housing 11 also includes a snow collecting cover 111 and a snow throwing housing 114. The snow collecting cover 111 is used to install at least part of the snow collecting device 13, and the snow throwing housing 114 is used to install at least part of the snow throwing device 14. In this embodiment, the host 10 also includes a power supply device 15 for providing an energy source for the snowplow 100. The power supply device 15 is installed to the main housing 11. The power supply device 15 is used to power the walking assembly 12, the snow collecting device 13 and the snow throwing device 14. In this embodiment, the power supply device 15 includes a battery pack 151 for energy storage, and the battery pack 151 is detachably installed on the main housing 11. In this embodiment, the number of battery packs 151 is 2, so that the power supply device 15 can provide enough power to extend the battery life of the snowplow 100. The main housing 11 also includes a battery compartment 113 for accommodating the power supply device 15, and the battery pack 151 is detachably installed in the battery compartment 113. It can be understood that in other embodiments, the power supply device 15 can also be a power supply cable, and the power supply cable can be connected to the AC mains, or connected to other energy storage devices.

[0062] like Figures 4 to 7As shown, the walking assembly 12 includes a walking wheel 121 for driving the snowplow 100 to walk on the ground, and also includes a walking motor 122 for driving the walking wheel 121 to rotate, wherein the walking motor 122 drives the walking wheel 121 to rotate around the walking axis 101. The walking wheel 121 includes a left walking wheel and a right walking wheel. The left walking wheel and the right walking wheel are respectively arranged on both sides of the main housing 11 and support the main housing 11. The power supply device 15 can supply power to the walking motor 122. In the left and right directions, the power supply device 15 is arranged between the left walking wheel and the right walking wheel. In the up and down directions, the power supply device 15 is at least partially arranged on the upper side of the left walking wheel and the right walking wheel. The walking motor 122 is arranged below the power supply device 15, and the walking motor 122 is connected to the left walking wheel and the right walking wheel through a reduction assembly. In this embodiment, the number of the walking motor 122 is 1, and the reduction assembly can include a clutch, so that there can be a speed difference between the left walking wheel and the right walking wheel, thereby realizing the steering action of the snowplow 100. It is understandable that in some embodiments, the travel assembly 12 may include two travel motors 122, and the two travel motors 122 drive the left travel wheel and the right travel wheel respectively, so that there can be a speed difference between the left travel wheel and the right travel wheel, thereby realizing the steering action of the snowplow 100. In this embodiment, the travel motor 122 is an outer rotor motor, which is located outside the travel wheel 121 and drives the travel wheel 121 through the reduction assembly. It is understandable that in some embodiments, the travel motor 122 can also be a hub motor, and the hub motor is at least partially arranged in the travel wheel 121 to drive the travel wheel 121 to rotate. In some embodiments, the travel motor 122 can also be a wheel side motor, and the wheel side motor is arranged close to the travel wheel 121 to drive the travel wheel 121 to rotate.

[0063] The snow collecting device 13 includes: a snow collecting element 131 and a first motor 132 for driving the snow collecting element 131 to rotate. The snow collecting element 131 is an auger that can rotate around the first rotation axis 102. The snow collecting element 131 is mounted on a snow collecting shaft 133, and the snow collecting shaft 133 is rotatably mounted to the snow collecting cover 111. The snow collecting shaft 133 takes the first rotation axis as the central axis. The snow collecting element 131 may include two augers, and the two augers are both mounted to the snow collecting shaft 133. The snow collecting element 131 is at least partially arranged in the snow collecting cover 111, and the snow collecting cover 111 includes an opening 112 that opens forward. When the snow collecting element 131 rotates around the first rotation axis 102, the auger stirs the snow on the ground, so that the snow on the ground enters the snow collecting cover 111 through the opening 112. The two augers can also gather the snow toward the middle of the opening 112 to improve the efficiency of snow collection.

[0064] The first motor 132 is used to drive the snow collecting element 131 to rotate around the first rotation axis 102. The first motor 132 is a certain distance away from the snow collecting element 131, and then the power output by the first motor 132 is transmitted to the snow collecting element 131 through the first transmission assembly 134, thereby driving the snow collecting element 131 to rotate.

[0065] The snow throwing device 14 includes: a snow throwing element 141 and a second motor 142 for driving the snow throwing element 141 to rotate. The snow throwing element 141 is an impeller mounted to the snow throwing shaft. The impeller is arranged at the rear side of the snow collecting element 131. The snow collecting element 131 can guide the snow to move toward the impeller. The snow throwing device 14 also includes a snow throwing cylinder 143 for guiding the ejection direction of the snow. The snow throwing cylinder 143 is arranged at a position in the circumferential direction of the impeller. When the impeller rotates at a high speed, the snow will be stirred by the impeller to rotate around the circumferential direction to the position of the snow throwing cylinder 143 and move along the snow throwing cylinder 143 to the outside of the snowplow 100, thereby being thrown to a preset position.

[0066] In this embodiment, the first motor 132 and the second motor 142 are independently arranged, that is, the first motor 132 drives the snow collecting element 131 to rotate, and the second motor 142 drives the snow throwing element 141 to rotate, so that the rotation of the snow collecting element 131 and the snow throwing element 141 can be independently controlled. In this way, compared with the solution in the prior art that drives both the snow collecting element 131 and the snow throwing element 141 by one motor, the technical solution of the present application makes snow collection more efficient and energy consumption lower. In the prior art, because one motor is connected to both the snow collecting element 131 and the snow throwing element 141, when the speed of the snow collecting element 131 changes, the speed of the snow throwing element 141 will also change. For example, when the speed of the snow collecting element 131 increases, the speed of the snow throwing element 141 also increases, and when the speed of the snow collecting element 131 slows down, the speed of the snow throwing element 141 also slows down. In this way, the speed matching relationship between the snow throwing element 141 and the snow collecting element 131 cannot reach the most efficient state, or in other words, there will be more energy loss, or in other words, when the speed of the snow collecting element 131 is reduced, the speed of the snow throwing element 141 is also reduced, which will affect the reduction of the snow throwing distance. In the present application, the snowplow 100 includes two motors that drive the snow collecting element 131 and the snow throwing element 141 respectively. Specifically, the first motor 132 drives the snow collecting element 131, and the second motor 142 drives the snow throwing element 141. In this way, the speeds of the snow collecting element 131 and the snow throwing element 141 can be adjusted independently under different conditions. For example, when the speed of the snow collecting element 131 needs to be increased, the speed of the first motor 132 driving the snow collecting element 131 can be individually controlled to increase, while the speed of the second motor 142 driving the snow throwing element 141 remains unchanged, thereby effectively improving the snow sweeping capability without affecting the snow throwing distance. Alternatively, when the speed of the snow collecting element 131 needs to be reduced, the speed of the first motor 132 driving the snow collecting element 131 can be individually controlled to decrease, while the speed of the second motor 142 driving the snow throwing element 141 remains unchanged, thereby reducing the energy loss of the snow sweeper 100 without affecting the snow throwing distance.

[0067] In this embodiment, the power supply device 15 also provides power to the first motor 132 and the second motor 142. After the battery pack 151 is installed in the battery compartment 113, it can provide power to the first motor 132 and the second motor 142. Among them, the nominal voltage of the battery pack 151 is greater than or equal to 24V, so that the power supply device 15 can load a motor with higher power, thereby improving the load capacity of the snowplow 100.

[0068] In some embodiments, the nominal voltage of the battery pack 151 is greater than or equal to 24V. In some embodiments, the nominal voltage of the battery pack 151 is greater than or equal to 40V. In some embodiments, the nominal voltage of the battery pack 151 is greater than or equal to 80V. In some embodiments, the nominal voltage of the battery pack 151 can be, for example, 24V, 36V, 40V, 56V, 80V, etc.

[0069] It can be understood that in some embodiments, the nominal voltage of the battery pack can also be 4V to 24V, and then multiple battery packs can be connected in series to obtain a power supply device with a higher output voltage.

[0070] In some embodiments, the battery pack 151 may also be fixedly connected to the main housing 11 , and the battery pack 151 may be a built-in battery pack 151 disposed in the main housing 11 .

[0071] In some embodiments, the battery pack 151 is detachably connected to the main housing 11 , and the battery pack 151 is platform-based and can power handheld power tools, riding power tools, all-terrain vehicles, etc.

[0072] In some embodiments, the battery pack 151 may be a lithium battery pack 151 , or a lithium iron phosphate battery pack 151 .

[0073] When the snow collecting element 131 is working without load, the working current of the first motor 132 is less than or equal to 40A. In this way, the maximum working current flowing through the current loop of the first motor 132 can be greatly reduced, and the maximum current that the electronic components on the current loop of the first motor 132 need to bear can be reduced. Therefore, when selecting the electronic components on the current loop of the first motor 132, electronic components with a smaller maximum carrying current can be selected, which can reduce the cost of the electronic components and the cost of the snowplow 100. Alternatively, relative to the prior art, when electronic components with substantially the same maximum carrying current as the electronic components in the existing snowplow 100 are selected, the working current of these electronic components in this embodiment can be made less than the maximum carrying current that they can bear, thereby increasing the service life of the electronic components. On the other hand, when the working current of the first motor 132 is reduced, the energy output of the power supply device 15 can also be reduced, thereby extending the battery life of the power supply device 15. On the other hand, when the working current of the first motor 132 is reduced, the heating of the electronic components on the current loop of the first motor 132 can also be reduced, thereby reducing energy loss.

[0074] In this embodiment, when the snow collecting element 131 is working without load, the working current of the first motor 132 is relatively small. In fact, when the snow collecting element 131 is working under load, the working current of the first motor 132 will also decrease, so that the working efficiency of the snowplow 100 under load can be improved, the endurance time of the snowplow 100 can be extended, the energy loss during the working process of the snowplow 100 can be reduced, and the utilization rate of electric energy can be improved.

[0075] In some embodiments, when the snow collecting element 131 is working without load, the working current of the first motor 132 is less than or equal to 30A. In this way, the energy utilization rate of the electric snow sweeper 100 can be further improved. In some embodiments, the working current of the first motor 132 is less than or equal to 20A. In some embodiments, the working current of the first motor 132 is less than or equal to 15A.

[0076] In some embodiments, when the snow collecting element 131 is working without load, the working current of the second motor 142 is less than or equal to 40A. In this way, the maximum working current flowing through the current loop of the second motor 142 can be reduced, and the maximum current that the electronic components on the current loop of the second motor 142 need to bear can be reduced. Therefore, when selecting the electronic components on the current loop of the second motor 142, electronic components with a smaller maximum carrying current can be selected, which can reduce the cost of the electronic components and the cost of the snowplow 100. Alternatively, relative to the prior art, when electronic components with substantially the same maximum carrying current as the electronic components in the existing snowplow 100 are selected, the working current of these electronic components in this embodiment can be made less than the maximum carrying current that they can bear, thereby increasing the service life of the electronic components. On the other hand, when the working current of the second motor 142 is reduced, the energy output of the power supply device 15 can also be reduced, thereby extending the battery life of the power supply device 15. On the other hand, when the working current of the second motor 142 is reduced, the heating of the electronic components on the current loop of the second motor 142 can also be reduced, thereby reducing energy loss. In some embodiments, the operating current of the second motor 142 is less than or equal to 30 A. In some embodiments, the operating current of the second motor 142 is also less than or equal to 20 A. In some embodiments, the operating current of the second motor 142 is also less than or equal to 15 A.

[0077] In this embodiment, when the snow collecting element 131 is working without load, the working current of the second motor 142 is relatively small. In fact, when the snow collecting element 131 is working under load, the working current of the second motor 142 will also decrease, so that the working efficiency of the snowplow 100 under load can be improved, the endurance time of the snowplow 100 can be extended, the energy loss during the working process of the snowplow 100 can be reduced, and the utilization rate of electric energy can be improved.

[0078] In some embodiments, when the snow collecting element 131 is working without load, the working current of the second motor 142 is less than or equal to 40 A. In this way, the energy utilization rate of the electric snow sweeper 100 can be further improved.

[0079] In some embodiments, when the snow collecting element 131 is working without load, the sum of the working current of the first motor 132 and the working current of the second motor 142 is less than or equal to 80A. In this way, the current flowing through the common bus of the first motor 132 and the second motor 142 is small, so that the electronic components on the bus can select components with a smaller maximum load current, which can reduce the cost of the electronic components. In other words, when the bus selects electronic components with substantially the same maximum load current as the electronic components in the existing snowplow 100, the working current of these electronic components in this embodiment can be made less than the maximum load current it can withstand, thereby increasing the service life of the electronic components. On the other hand, when the sum of the working current of the first motor 132 and the working current of the second motor 142 is reduced, the energy output of the power supply device 15 can also be reduced, thereby extending the battery life of the power supply device 15. On the other hand, when the sum of the working current of the first motor 132 and the working current of the second motor 142 is reduced, the heating of the electronic components on the bus can also be reduced, thereby reducing energy loss.

[0080] In some embodiments, when the snow collecting element 131 is working without load, the sum of the working current of the first motor 132 and the working current of the second motor 142 is less than or equal to 50 A. In some embodiments, when the snow collecting element 131 is working without load, the sum of the working current of the first motor 132 and the working current of the second motor 142 is less than or equal to 35 A.

[0081] In this embodiment, when the snow collecting element 131 is working without load, the sum of the working current of the first motor 132 and the working current of the second motor 142 is small. In fact, when the snow collecting element 131 is working under load, the sum of the working current of the first motor 132 and the working current of the second motor 142 will also decrease, so that the working efficiency of the snowplow 100 under load can be improved, the endurance time of the snowplow 100 can be extended, the energy loss during the working process of the snowplow 100 can be reduced, and the utilization rate of electric energy can be improved.

[0082] like Figure 4 and Fig.11As shown, the snowplow 100 also includes a control device 30 for controlling the first motor 132 and the second motor 142. In this embodiment, the control device 30 can control the electrical parameters of the first motor 132 to change, and can also control the electrical parameters of the first motor 132 to change independently of the second motor 142. Similarly, the control device 30 can control the electrical parameters of the second motor 142 to change, and can also control the electrical parameters of the second motor 142 to change independently of the first motor 132. In this way, when the electrical parameters of the first motor 132 change, the electrical parameters of the second motor 142 may not change with the change of the first motor 132. Similarly, when the electrical parameters of the second motor 142 change, the electrical parameters of the first motor 132 may not change with the change of the second motor 142.

[0083] In this embodiment, the control device 30 is further configured to adjust the speed of the first motor 132 in response to changes in the load. For example, the control device 30 can adjust the speed of the first motor 132 according to changes in the thickness of the snow to be cleared by the snowplow 100, so that the speed of the snow collecting element 131 changes with the change in the thickness of the snow. In this way, the snow collecting element 131 can collect snow more efficiently according to the thickness of the snow, so that the snowplow 100 can automatically adapt to the changes in the thickness of the snow to be cleared by the snowplow 100, thereby improving the cleaning efficiency of the snowplow 100.

[0084] The load information received by the control device 30 may be the thickness of the snow. In other embodiments, the load information may also be the density of the snow, so that the control device 30 can identify whether the snow is loose snow, wet snow, or snow with ice according to the density of the snow, and better control the speed of the first motor 132.

[0085] In this embodiment, the snow throwing element 141 is driven by the second motor 142 instead of sharing the motor with the snow collecting element 131. Thus, in this embodiment, the control device 30 can also keep the speed of the second motor 142 unchanged when adjusting the speed of the first motor 132 in response to the change of the load. Thus, when the snowplow 100 faces snow of different thicknesses, it can automatically adjust the speed of the snow collecting element 131, so that the snow collecting element 131 can gather snow efficiently without affecting the snow throwing distance of the snowplow 100. That is to say, when the thickness of the snow is different, although the speed of the snow collecting element 131 of the snowplow 100 changes, the speed of the snow throwing element 141 can remain unchanged, so that the distance of the snow thrown by the snow throwing element 141 will not change. In the prior art, if the speed of the snow collecting element 131 is increased due to the increase of the thickness of the snow, the speed of the snow throwing element 141 will also increase, thereby increasing the snow throwing distance, which will cause the snow to not be thrown to the preset position as expected. Alternatively, if the rotation speed of the snow collecting element 131 is reduced due to a decrease in snow thickness, the rotation speed of the snow throwing element 141 will also be reduced, thereby reducing the snow throwing distance, which will cause the snow to not be thrown to the preset position as expected.

[0086] In the present embodiment, the control device 30 is further configured to maintain the speed of the second motor 142 at a speed value corresponding to the set snow throwing distance when the speed of the first motor 132 is adjusted in response to a change in the load. Specifically, the operating device may include a first operating member 221, and the first operating member 221 is operated by a user to adjust and set the snow throwing distance of the snow blower 100, and the control device 30 controls the speed of the second motor 142 to maintain at a speed value corresponding to the set snow throwing distance according to the set snow throwing distance. More specifically, the first operating member 221 is operated by the user to adjust the speed of the second motor 142, thereby adjusting the snow throwing distance. In this way, even when the speed of the first motor 132 changes according to the load, the speed of the second motor 142 will be maintained at a speed value corresponding to the set snow throwing distance, so that the speed of the snow throwing element 141 remains constant, and the snow throwing distance of the snow blower 100 remains unchanged.

[0087] like Figures 3 to 7As shown, the snow collecting device 13 includes a first transmission assembly 134. The first transmission assembly 134 connects the first motor 132 and the snow collecting element 131, and is used to transmit power between the first motor 132 and the snow collecting element 131. The first transmission assembly 134 can reduce the high speed output by the first motor 132 to transmit it to the snow collecting element 131 to drive the snow collecting element 131 to rotate at a low speed. In this embodiment, the speed of the first motor 132 is greater than or equal to 5000rpm and less than or equal to 20000rpm. In this way, the first motor 132 can output a higher speed and improve the working efficiency of the snowplow 100. The first transmission assembly 134 is used to realize the speed reduction function between the first motor 132 and the snow collecting element 131. Specifically, the reduction ratio of the first transmission assembly 134 is greater than or equal to 40 and less than or equal to 200. In this way, the snow collecting element 131 can have a larger output torque, can drive thicker and heavier snow, and improve the load capacity of the snowplow 100. On the other hand, the speed of the first motor 132 is greater than or equal to 5000 rpm and less than or equal to 20000 rpm, which also makes the first motor 132 lighter, smaller in size, and lower in cost, thereby reducing the weight of the entire snowplow 100, making the arrangement of the entire machine more compact and lower in cost. In some embodiments, the reduction ratio of the first transmission assembly 134 is greater than or equal to 80 and less than or equal to 120. In some embodiments, the reduction ratio of the first transmission assembly 134 is greater than or equal to 60 and less than or equal to 180. In some embodiments, the speed of the first motor 132 is greater than or equal to 10,000 rpm and less than or equal to 14,000 rpm, and the reduction ratio of the first transmission assembly 134 is greater than or equal to 80 and less than or equal to 120. In this way, the speed of the first motor 132 and the reduction ratio of the first transmission assembly 134, as well as the relationship between the speed of the first motor 132 and the reduction ratio of the first transmission assembly 134, can be optimized, so that the snow collecting device 13 works at a higher efficiency.

[0088] The speed of the second motor 142 is greater than or equal to 5000 rpm and less than or equal to 14000 rpm. In this way, the second motor 142 can be made lighter, smaller, and less expensive, thereby reducing the weight of the entire snowplow 100, making the arrangement of the entire machine more compact and less expensive.

[0089] like Figures 3 to 7As shown, the snow throwing device 14 includes a second transmission assembly 144. The second transmission assembly 144 connects the second motor 142 and the snow throwing element 141, and is used to transmit power between the second motor 142 and the snow throwing element 141. The second transmission assembly 144 can reduce the high speed output by the second motor 142 to transmit it to the snow throwing element 141 to drive the snow throwing element 141 to rotate at a low speed. The second transmission assembly 144 is used to realize the speed reduction function between the second motor 142 and the snow throwing element 141, so that the speed of the second motor 142 can be higher. The second motor 142 outputs a higher speed, which can improve the working efficiency of the snowplow 100. The reduction ratio of the second transmission assembly 144 is greater than or equal to 4 and less than or equal to 20. In this way, the snow throwing element 141 can have a larger output torque, can drive thicker and heavier snow, and improve the load-carrying capacity of the snowplow 100. On the other hand, the rotation speed of the second motor 142 is greater than or equal to 5000 rpm and less than or equal to 14000 rpm, which also makes the second motor 142 lighter, smaller in size, and lower in cost, thereby reducing the weight of the entire snow blower 100, making the entire machine more compact and less expensive.

[0090] It is understandable that in other embodiments, the second transmission assembly 144 may not be provided between the second motor 142 and the snow throwing element 141, but the snow throwing element 141 may be directly mounted on the second motor 142, and the second motor 142 directly drives the snow throwing element 141 to rotate.

[0091] Specifically, the first transmission assembly 134 is a gear transmission assembly, and the gear transmission assembly refers to a gear set that meshes with each other. For example, the gear transmission assembly can be a planetary gear assembly, a worm gear assembly, or a bevel gear assembly. The meshing gear set can include a first gear 134a and a second gear 134b meshing with the first gear 134a. The first gear 134a can rotate with the first axis 103 as the axis, and the second gear 134b rotates with the second axis 104 as the axis. In this embodiment, the first gear 134a and the second gear 134b intersect each other perpendicularly or obliquely. The gear set can also include a third gear 134c meshing with the second gear 134b, and the third gear 134c rotates with the third axis 105 as the axis, and the third axis 105 is parallel to the second axis 104. It can be understood that in other embodiments, the first axis 103 can also be parallel to the second axis 104.

[0092] The second transmission assembly 144 may also be a gear transmission assembly, which refers to a gear set that meshes with each other, for example, the gear transmission assembly may be a planetary gear assembly, a worm gear assembly, or a bevel gear assembly. The second transmission assembly 144 may also include a plurality of meshing gears, and the rotation axes of some of the plurality of gears may be parallel to each other.

[0093] It can be understood that in other embodiments, the first transmission assembly 134 can also be a belt transmission assembly, and the second transmission assembly 144 can also be a belt transmission assembly.

[0094] In the present embodiment, the first motor 132 may be an outer rotor motor. The diameter of the first motor 132 is greater than or equal to 30 mm and less than or equal to 110 mm. In this way, the size of the first motor 132 is small, so that the first motor 132 can be arranged in a suitable position of the main housing 11 without occupying too much space. The stator stack length of the first motor 132 is greater than or equal to 10 mm and less than or equal to 50 mm, and the weight of the first motor 132 is greater than or equal to 0.4 kg and less than or equal to 2.5 kg. In some embodiments, the diameter of the first motor 132 is greater than or equal to 35 mm and less than or equal to 95 mm.

[0095] The second motor 142 may be an outer rotor motor. The diameter of the second motor 142 is greater than or equal to 60 mm and less than or equal to 135 mm. In this way, the size of the second motor 142 is small, so that the second motor 142 can be arranged in a suitable position of the main housing 11 without occupying too much space. The stator stack length of the second motor 142 is greater than or equal to 10 mm and less than or equal to 60 mm, and the weight of the second motor 142 is greater than or equal to 1 kg and less than or equal to 6 kg. In some embodiments, the diameter of the second motor 142 is greater than or equal to 85 mm and less than or equal to 135 mm.

[0096] When the snow collecting element 131 is working at no load, the ratio of the no-load output power of the second motor 142 to the no-load output power of the first motor 132 is greater than or equal to 0.5 and less than or equal to 1.5. In this way, when the power supply device 15 outputs a certain power, the ratio of the no-load output power of the second motor 142 to the no-load output power of the first motor 132 is within a reasonable range, so that the first motor 132 and the second motor 142 can work near the maximum efficiency point as much as possible, thereby improving the working efficiency of the snowplow 100. Moreover, the distribution of the output power of the snow collecting element 131 and the output power of the snow throwing element 141 is made more reasonable, so that when the snowplow 100 is working under load, it can collect snow with reasonable power and throw snow with reasonable power.

[0097] The no-load output power of the first motor 132 is greater than or equal to 600W and less than or equal to 2000W, so that the first motor 132 can work near the maximum efficiency point. The no-load output power of the second motor 142 is greater than or equal to 600W and less than or equal to 2000W, so that the second motor 142 can work near the maximum efficiency point. In some embodiments, the no-load output power of the first motor 132 is greater than or equal to 900W and less than or equal to 1500W, and the no-load output power of the second motor 142 is greater than or equal to 900W and less than or equal to 1500W.

[0098] In some embodiments, the sum of the no-load output power of the first motor 132 and the no-load output power of the second motor 142 is greater than or equal to 1200 W and less than or equal to 4000 W. In this way, when the snowplow 100 is running at no-load, the total output power of the first motor 132 and the second motor 142 is low, which can reduce energy loss.

[0099] It should be noted that the no-load parameters of the first motor 132 and the second motor 142 are parameters when the snow collecting element 131 rotates normally to a stable state without clearing snow.

[0100] When the snow collecting element 131 is under load operation, that is, when the snowplow 100 is sweeping snow, the maximum load power of the second motor 142 is greater than or equal to 4000 W. In this way, the load power of the second motor 142 can be greater than that of the first motor 132, so that energy can be reasonably distributed and the snow throwing distance of the snowplow 100 is not affected.

[0101] The control device 30 is electrically connected to the first motor 132 and the second motor 142. The control device 30 can adjust the load power of the second motor 142 and the load power of the first motor 132 according to the change of the load. In this way, when the load changes, the speed of the first motor 132 can be changed with the load, and the power can be changed with the load to ensure the efficiency of snow sweeping. Similarly, when the load changes, the power of the second motor 142 can be changed with the load to ensure the snow throwing distance of the snow sweeper 100.

[0102] The ratio of the load power of the second motor 142 to the load power of the first motor 132 is different from the ratio of the no-load output power of the second motor 142 to the no-load output power of the first motor 132. Specifically, the ratio of the load power of the second motor 142 to the load power of the first motor 132 is greater than the ratio of the no-load output power of the second motor 142 to the no-load output power of the first motor 132. In this way, when the motor is not loaded, the no-load output power of the second motor 142 is as small as possible, thereby reducing energy loss. When loaded, the load power of the second motor 142 is as large as possible, and its proportion in the total output power is as large as possible, thereby improving the load capacity of the snowplow 100.

[0103] like Fig.12 The graph shows the current change of the snowplow 100 during operation. Curve a is the current change curve of the first motor 132, and curve b is the current change curve of the second motor 142. In the no-load stage section, the current of the first motor 132 and the current of the second motor 142 are basically the same, and in the load stage, the current of the second motor 142 is much larger than the current of the first motor 132. The current of the first motor 132 is basically unchanged in the no-load stage and the load stage. The current of the second motor 142 increases significantly from the no-load stage to the load stage. At point P1 of curve a, the first motor 132 has the maximum current, and the first motor 132 has the maximum load power. At point P2 of curve b, the second motor 142 has the maximum current, and the second motor 142 has the maximum load power.

[0104] like Figure 1 , Figures 8 to 10 As shown, the snow throwing cylinder 143 is rotatably connected with the main housing 11. The user can drive the snow throwing cylinder 143 to rotate relative to the main housing 11 around the first snow throwing axis 106 by operating the operating assembly 22, so that the snow throwing cylinder 143 is open in different directions, thereby adjusting the snow throwing direction of the snowplow 100. Among them, the first snow throwing axis 106 basically extends in the up-down direction. In the front-to-back direction, the snow throwing cylinder 143 is arranged between the power supply device 15 and the snow collecting cover 111. The main housing 11 also includes a snow throwing shell 114 arranged at the rear side of the snow collecting cover 111, and the snow throwing shell 114 is used to accommodate the snow throwing element 141. The snow throwing shell 114 is basically a cylindrical surface, and the snow throwing cylinder 143 is connected to the cylindrical surface and communicates with the space in the snow throwing shell 114. In this way, the snow throwing element 141 can throw snow to the snow throwing cylinder 143 and throw it through the snow throwing cylinder 143.

[0105] The snow throwing device 14 further includes a snow throwing cap 145 connected to the snow throwing cylinder 143. The snow throwing cap 145 is connected to one end of the snow throwing cylinder 143 away from the main housing 11 and is rotatably connected to the snow throwing cylinder 143. The snow throwing cap 145 can rotate relative to the snow throwing cylinder 143 around the second snow throwing axis 107, and the second snow throwing axis 107 is substantially perpendicular to the first snow throwing axis 106. When the snow throwing cap 145 rotates relative to the snow throwing cylinder 143, the snow throwing cap 145 can change the angle of the moving direction of the snow after it comes out of the snow throwing cap 145 relative to the ground, thereby guiding the snow throwing height, and then changing the snow throwing distance.

[0106] The distance between the position where the snow falls on the ground after being guided by the snow throwing device 14 and the central axis (first snow throwing axis 106) of the snow throwing cylinder 143 is defined as the snow throwing distance L. For example, Figure 2 As shown, the distance between the central axis of the snow throwing cylinder 143 and the approximate center of the snow pile is the snow throwing distance L. In this embodiment, the maximum snow throwing distance that the snowplow 100 can achieve is greater than or equal to 10 m and less than or equal to 21 m. In this embodiment, the snow collecting element 131 and the snow throwing element 141 are each driven by an independent motor, so that the snow throwing element 141 can rotate at a higher speed, and the snowplow 100 can be configured to rotate the snow throwing element 141 at a higher speed, so that the maximum snow throwing distance that the snowplow 100 can achieve is large enough to meet the needs of more users. In some embodiments, the maximum snow throwing distance that the snowplow 100 can achieve is greater than or equal to 12 m and less than or equal to 21 m. In some embodiments, the maximum snow throwing distance that the snowplow 100 can achieve is greater than or equal to 15 m and less than or equal to 21 m.

[0107] As described above, the user can adjust the snow throwing distance by adjusting the speed of the second motor 142 by operating the first operating member 221. Compared with the prior art, in which the snow throwing distance cannot be changed or only a small change in the snow throwing distance is achieved by changing the snow throwing angle, the user can set the snow throwing distance more flexibly.

[0108] In this embodiment, the maximum rotation speed of the snow throwing element 141 is greater than or equal to 500 rpm and less than or equal to 2000 rpm, thereby ensuring that the snowplow 100 has a greater snow throwing distance.

[0109] The snow collecting cover 111 is used to install the snow collecting element 131. The snow collecting cover 111 includes a top wall, a first side wall 111b, a second side wall 111c and a rear wall 111d, which surround and form an internal space of the snow collecting cover 111. The snow collecting element 131 is arranged in the internal space, and their front end edges surround and form the above-mentioned opening 112. The top wall is arranged on the upper side of the snow collecting element 131, and the first side wall 111b and the second side wall 111c are arranged on the left and right sides of the top wall respectively. The first side wall 111b extends downward from the left end of the top wall, and the second side wall 111c extends downward from the right end of the top wall. The two ends of the first rotating shaft are rotatably mounted to the first side wall 111b and the second side wall 111c respectively, and the snow collecting shaft 133 can rotate relative to the first side wall 111b and the second side wall 111c around the first rotating axis 102, so that the snow collecting element 131 connected to the first rotating shaft can rotate relative to the snow collecting cover 111. In this embodiment, the projection of the front edge of the first side wall 111b in a plane perpendicular to the front-to-back direction extends substantially in the up-down direction, and the projection of the front edge of the second side wall 111c in a plane perpendicular to the front-to-back direction extends substantially in the up-down direction. The rear wall 111d connects the top wall, the first side wall 111b and the second side wall 111c, and the rear wall 111d is at least partially arc-shaped. The rear wall 111d is formed with a snow inlet, which is substantially located in the middle of the rear wall 111d in the left-right direction. In this way, the snow collecting element 131 can gather the snow toward the middle and guide the snow backwards, so that most of the snow can move toward the snow inlet, thereby improving the efficiency of snow clearing.

[0110] like Figure 6 As shown, a coordinate system is established with the point on the first rotation axis 102 of the snow collecting element 131 as the origin O, the front-to-back direction as the X-axis, the up-down direction as the Y-axis, the forward direction as the positive direction of the X-axis, and the upward direction as the positive direction of the Y-axis. The coordinate system has a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant. Figure 6As shown, the projection of the first motor 132 in the plane where the coordinate system is located is located in an angle area A with the origin O as the vertex and located in the plane where the coordinate system is located, the first side S1 of the angle area A is located in the first quadrant of the coordinate system and the angle A1 between the first side S1 and the positive direction of the Y axis is less than or equal to 60 degrees, and the second side S2 of the angle area A is located in the second quadrant of the coordinate system and the angle A2 between the first side S2 and the positive direction of the Y axis is less than or equal to 80 degrees. In this way, the position of the first motor 132 and the position of the first transmission assembly 134 connecting the first motor 132 and the snow collecting element 131 can be conveniently arranged, and the snow collecting element 131 can be driven by the first motor 132 independent of the second motor 142 at a low cost and reliably. Moreover, the first motor 132 is arranged in the angle area A, so that the second motor 142 can be conveniently arranged at the rear side of the snow throwing element 141. The first motor 132 is arranged in the angle area A, and the first transmission assembly 134 can more easily realize the transmission of power between the first motor 132 and the snow collecting element 131.

[0111] The projection of the first motor 132 in the plane where the coordinate system is located is located in a circular area with the origin O as the center and located in the plane where the coordinate system is located, and the radius of the circular area is less than or equal to 0.7m. In this way, the distance between the first motor 132 and the snow collecting element 131 can be reduced, making the transmission more stable. In some embodiments, the radius of the circular area is less than or equal to 0.4m.

[0112] The first side S1 of the angle area A is located in the first quadrant of the coordinate system and the angle between it and the positive direction of the Y axis is less than or equal to 30 degrees, and the second side S2 of the angle area A is located in the second quadrant of the coordinate system and the angle between it and the positive direction of the Y axis is less than or equal to 60 degrees. More specifically, the first motor 132 is disposed on the upper side of the first rotation axis 102. In some embodiments, the first motor 132 is disposed on the upper side of the snow collecting element 131. In this way, the space on the upper side of the snow collecting element 131 can be fully utilized, thereby reducing the size of the snowplow 100 in the front-to-back direction.

[0113] The projection of the first motor 132 in a plane perpendicular to the front-rear direction is located between the projections of the first side wall 111b and the second side wall 111c in a plane perpendicular to the front-rear direction. Fig.10 As shown, in the left-right direction, the first motor 132 does not exceed the first side wall 111b and the second side wall 111c, that is, it is considered that the first motor 132 is located between the first side wall 111b and the second side wall 111c in the left-right direction. In this way, the problem of increased load on the snowplow 100 caused by the first motor 132 exceeding the first side wall 111b and the second side wall 111c in the left-right direction is avoided, so that during the snowplow 100 snow removal process, the snow on the left and right sides will not contact the first motor 132.

[0114] In this embodiment, the main housing 11 further includes a first motor housing 115, which is mounted to the outside of the top wall. The first motor housing 115 forms a first accommodation space for accommodating the first motor 132, so that the first motor 132 is arranged on the upper side of the top wall. In this way, on the one hand, the height of the first motor 132 is high, so that it can not be touched by snow and does not affect the load of the snow sweeper 100. On the other hand, the first motor 132 is arranged on the upper side of the top wall, and the transmission assembly can be conveniently arranged. Specifically, the first transmission assembly 134 includes a long axis 134d passing through the top wall, and the end of the long axis 134d close to the motor is connected to the first reduction assembly, and the end of the long axis 134d away from the motor is connected to the second reduction assembly. The first reduction assembly connects the first motor 132 and the long axis 134d, and the second reduction assembly connects the long axis 134d and the snow collecting shaft 133. The extension direction of the long axis 134d is perpendicular to the first rotation axis 102. Alternatively, in other embodiments, the extension direction of the long axis 134d can also be inclined relative to the first rotation axis 102.

[0115] In this way, the first motor 132 and the first transmission assembly 134 are both arranged in front of the second motor 142 and in front of the snow throwing element 141. Thus, the overall layout of the snow sweeper 100 is reasonable, the transmission structure is simple, and it is easier to implement.

[0116] like Figure 1 and Figure 4 As shown, the snowplow 100 further includes an electric wire 31 for the first motor 132, and the electric wire 31 at least partially extends outside the snow collecting cover 111. The electric wire 31 is connected to the power supply device 15 and / or the control device 30, so that the power supply device 15 and the control device 30 are electrically connected to the first motor 132. In this case, the first motor 132 is arranged on the upper side of the top wall of the snow collecting cover 111, and the arrangement of the electric wire 31 is also convenient.

[0117] like Fig.11As shown, the control device 30 is electrically connected to the first motor 132 and the second motor 142. The control device 30 can control the rotation speed of the first motor 132 according to the state of snow and the walking speed of the walking assembly 12. In this way, when the state of snow changes, or the walking speed of the walking assembly 12 changes, the control device 30 can automatically control the rotation speed of the first motor 132, so that the rotation speed of the snow collecting element 131 automatically adapts to the change of the state of snow and the change of the walking speed. In this way, the rotation speed of the snow collecting element 131 can not only adapt to the change of load, but also change according to the change of the walking speed of the walking assembly 12. Compared with the method of adjusting the speed of the snow collecting element 131 according to the change of the state of snow in the prior art, it is more intelligent. Because when the state of snow changes to a state, if the walking speed of the snowplow 100 is different, it will also affect the change of the load of the snow collecting element 131. If the snow collecting element 131 is maintained to adapt to the state of snow at this time, the walking speed of the snowplow 100 is different, which may cause the snow collecting element 131 to be not cleaned clean or have excess energy.

[0118] The state of snow may include the thickness of snow and / or the density of snow. In this embodiment, the thickness of snow is taken as an example.

[0119] like Fig.13A and Fig. 13B The figure shows that the speed of the corresponding snow collecting element 131 is set according to different snow thicknesses and walking speeds. It can be understood that the control device 30 directly controls the speed of the first motor 132, and ultimately controls the speed of the snow collecting element 131, or in other words, the control device 30 can calculate the corresponding speed of the first motor 132 according to the speed of the snow collecting element 131 and the reduction ratio of the first transmission assembly 134 and control the first motor 132.

[0120] Specific Fig.13A When the thickness of the snow is 0.1m, the corresponding snow collecting element 131 has different rotation speeds at different walking speeds. In this embodiment, when the rotation speed of the snow collecting element 131 changes, the rotation speed of the snow throwing element 141 remains unchanged. When designing, the amount of snow walking corresponding to the walking speed can be less than the amount of snow collected by the snow collecting element 131, and the amount of snow collected by the snow collecting element 131 is less than the amount of snow thrown by the snow throwing element 141. In this way, the snow (the amount of snow walking) passed by the snow sweeper 100 during walking can be basically collected by the snow collecting element 131, and the snow collected by the snow collecting element 131 can also be basically thrown by the snow throwing element 141, thereby avoiding the situation where the snow is not cleaned up.

[0121] It can be understood that the amount of snow covered by the snowplow 100 during its travel is the amount of snow covered per unit time. The amount of snow covered by the snowplow 100 is related to the thickness of the snow and the travel speed. The greater the thickness, the greater the amount of snow covered by the snowplow 100. The greater the travel speed, the greater the amount of snow covered by the snowplow 100. The amount of snow collected refers to the amount of snow that can be collected by the snow collecting element 131. The amount of snow collected is related to the rotation speed of the snow collecting element 131. The greater the rotation speed, the greater the amount of snow collected. The amount of snow thrown refers to the amount of snow that can be thrown by the snow throwing element 141. The amount of snow thrown by the snow throwing element 141 is related to the rotation speed of the snow throwing element 141. The greater the rotation speed, the greater the amount of snow thrown.

[0122] See also Fig.13A and Fig. 13B For example, when the walking speed is maintained at 0.05 m / s, when the snow thickness changes from 0.1 m to 0.2 m, the rotation speed of the snow collecting element 131 will also change.

[0123] From the above, it can be known that in this embodiment, when the state of snow remains unchanged, the greater the walking speed of the walking assembly 12, the greater the rotation speed of the first motor 132. In other words, when the state of snow remains unchanged, the greater the walking speed of the walking assembly 12, the greater the amount of snow collected by the walking assembly 12, and at this time, the snow collecting element 131 needs to match a larger snow collecting amount to clean the snow.

[0124] When the walking speed of the walking assembly 12 remains unchanged, the greater the thickness and / or density of the snow, the greater the rotation speed of the first motor 132. In other words, when the walking speed of the walking assembly 12 remains unchanged, the greater the thickness of the snow, the greater the amount of snow collected by the walking assembly 12, and at this time, the snow collecting element 131 needs to match a larger amount of snow collection to clean the snow. like Fig.13A and Fig. 13B , when the walking speed and the rotation speed of the snow collecting element 131 change, the rotation speed of the snow throwing element 141 can remain unchanged, so that the snow throwing distance can be guaranteed to remain unchanged, so that the snow blower 100 can throw snow to a preset position. In other words, when the control device 30 controls the rotation speed of the first motor 132, the rotation speed of the second motor 142 may not change with the change of the rotation speed of the first motor 132. Alternatively, when the control device 30 controls the rotation speed of the first motor 132 to change, the control device 30 controls the rotation speed of the second motor 142 to remain unchanged. Of course, it can be understood that, in fact, the control device 30 can also adjust the rotation speed of the second motor 142 according to the change of load and / or the change of walking speed and / or the change of the rotation speed of the first motor 132, so as to achieve more intelligent control of the snow blower 100.

[0125] The snowplow 100 may further include a memory 32. The memory 32 may pre-store a mapping relationship between the state of snow, the travel speed of the travel assembly 12, and the speed of the first motor 132. The speed of the first motor 132 may also be understood as the speed of the snow collecting element 131, because the speed of the first motor 132 may be calculated by the speed of the snow collecting element 131 and the reduction ratio of the first transmission assembly 134. If the speed of the snow collecting element 131 is stored, and because the speed of the snow collecting element 131 and the speed of the first motor 132 have a corresponding relationship, it can still be considered as a mapping relationship between the state of snow, the travel speed of the travel assembly 12, and the speed of the first motor 132.

[0126] The control device 30 is connected to the memory 32. In this way, when the control device 30 obtains the state of snow and the walking speed, the rotation speed of the first motor 132 can be obtained according to the mapping relationship, and then the first motor 132 is controlled according to the obtained value, so that the snowplow 100 can be more intelligent and more efficient in snow removal, which improves the work efficiency and reduces the energy loss.

[0127] The mapping relationship can include Fig.13A and Fig. 13B When the mapping relationship is a relational table, if the snow thickness is between 0.1 and 0.2, you can use Fig. 13B Similarly, when the walking speed is between two speeds, a similar method is used for calculation.

[0128] Alternatively, in other embodiments, the mapping relationship may also be a relationship function, the input parameters of the relationship function may be the walking speed and the thickness of the snow, and the output parameter of the relationship function may be the rotational speed of the first motor 132 .

[0129] It is understandable that in some embodiments, the control device 30 may also control the speed of the first motor 132 according to the walking speed. In some embodiments, the control device 30 may control the speed of the first motor 132 only according to the walking speed instead of the change of the snow state. In this way, when the walking speed becomes faster, the control device 30 controls the speed of the first motor 132 to become larger, and when the walking speed becomes slower, the control device 30 controls the speed of the first motor 132 to become smaller. In this way, to a certain extent, the snowplow 100 can also realize intelligent control, improve work efficiency, and reduce energy loss.

[0130] like Figure 1 and Fig.11As shown, the snowplow 100 also includes a detection device 40 for detecting the state of snow. The control device 30 is connected to the detection device 40 for communication or electrical connection. The control device 30 obtains the state parameters of the state of snow through the detection device 40, thereby adjusting the rotation speed of the first motor 132. The snowplow 100 also includes a speed detection device 50, which can be electrically connected to the control device 30 or connected to the control device 30 for communication. The speed detection device 50 is used to detect the walking speed. The control device 30 obtains the walking speed through the speed detection device 50 to control the rotation speed of the first motor 132.

[0131] In one embodiment of the present application, a control method of a snowplow 100 is also provided. FIG. 14 is a control flow chart of an embodiment of the snowplow 100. In combination with FIG. 1 and FIG. 14, the control method includes: S101, start the snowplow. Starting the snowplow 100 may refer to powering on the snowplow 100 and starting the travel motor 122 so that the snowplow 100 moves on the ground. Alternatively, the first motor 132 and / or the second motor 142 of the snowplow 100 may also be started.

[0132] S102, obtaining the state parameters of snow and the walking speed. The state parameters of snow can be detected by the detection device 40, and the state parameters of snow can be the thickness of snow or the density of snow. The walking speed can be detected by the speed detection device 50. The control device 30 obtains the state parameters of snow and the walking speed of the walking component 12.

[0133] S103, obtaining the rotation speed of the first motor 132 according to the state parameter of the snow and the travel speed. The control device 30 obtains the rotation speed of the first motor 132 according to the state parameter of the snow, the travel speed and the mapping relationship stored in the memory 32.

[0134] S104 , controlling the first motor according to the acquired rotation speed of the first motor 132 . According to the acquired rotation speed of the first motor 132 , the duty cycle of the PWM signal of the first motor 132 is controlled, thereby controlling the output rotation speed of the first motor 132 .

[0135] In some embodiments, the control device 30 is further configured to control the walking speed of the walking component 12 and the rotation speed of the first motor 132 according to the state of the snow. That is to say, the input parameter is the state parameter of the snow, and the output parameter is the walking speed of the walking component 12 and the rotation speed of the first motor 132, so that the snowplow 100 can achieve full intelligent control. The user does not need to control the walking speed of the snowplow 100 according to the change of the state of the snow, but the control device 30 automatically controls the walking speed of the snowplow 100 and controls the matching relationship between the first motor 132 and the walking speed. In this way, the snowplow 100 can walk at a more optimal walking speed and the rotation speed of the first motor 132 according to the change of the state of the snow, thereby improving the working efficiency of the snowplow 100.

[0136] In this embodiment, the memory 32 may store a mapping relationship between the state of snow, the walking speed of the walking assembly 12, and the rotation speed of the first motor 132. In this way, after the control device 30 obtains the state parameters of snow, it can obtain a walking speed and a rotation speed of the first motor 132 that match the state parameters of snow according to the mapping relationship, and then the control device 30 controls the walking motor 122 and the first motor 132. In this way, the control method of the snowplow 100 is simpler. The snowplow 100 only needs to identify the state parameters of snow and automatically match the walking speed and the rotation speed of the first motor 132, making the control of the snowplow 100 more intelligent.

[0137] Similarly, the mapping relationship may include a relationship table or a relationship function. Fig.15 In the example relationship table, if the thickness of the snow is between 0.02m and 0.04, the corresponding data when the thickness of the snow is 0.04m can be used.

[0138] Alternatively, in other embodiments, the mapping relationship may also be a relationship function, the input parameter of the relationship function may be the thickness of the snow, and the output parameter of the relationship function may be the travel speed of the travel motor 122 and the rotation speed of the first motor 132 .

[0139] As shown in FIG16 , the mapping relationship may be a relationship function. Fig.16A Indicates the corresponding relationship between snow thickness and working conditions, Fig. 16B is the corresponding relationship between walking speed and working conditions, Fig. 16C is the corresponding relationship between the speed of the first motor 132 and the working condition. After the control device 30 obtains the parameter of the snow thickness, the control device 30 can correspondingly obtain the working condition of the snowplow 100 at this time, and then obtain the walking speed of the walking component 12 and the speed of the first motor 132 according to the working condition. Fig.16AAs shown, the working conditions include light load working conditions and heavy load working conditions, wherein the light load working condition may correspond to working conditions 0 to 4, wherein the heavy load working condition may correspond to working conditions after working condition 4. Under the light load working condition, the power output by the power supply device 15 is sufficient to meet the operation of the walking motor 122, the first motor 132 and the second motor 142. Therefore, under the light load working condition, the walking speed is relatively large, such as Fig. 16B As shown, the walking speed can be kept constant at 0.7 m / s and does not increase with the increase of snow thickness. At this time, the speed of the first motor 132 can change with the change of snow thickness. Under light load conditions, as the thickness of snow increases, the amount of snow covered by the snowplow 100 increases. Therefore, the speed of the first motor 132 needs to be gradually increased to collect as much snow as possible. Fig. 16C As shown, as the snowplow 100 enters the heavy-load condition, if the walking speed is still maintained at a relatively high speed, the speed of the first motor 132 needs to be increased. Obviously, this will cause the total power of the first motor 132, the walking motor 122 and the second motor 142 to exceed the power output of the power supply device 15. Therefore, it is necessary to reduce the walking speed of the walking device to ensure that the power output of the power supply device 15 meets the operation of the snowplow 100, avoid the snowplow 100 from stalling, and reduce energy loss. Specifically, under heavy load conditions, the speed of the first motor 132 is set at a preset speed to ensure that the first motor 132 works near the maximum efficiency point. At this time, the amount of snow that can be collected by the snow collecting element 131 is fixed. As the thickness of the snow increases, it is necessary to ensure that the amount of snow covered by the snowplow 100 is less than or equal to the amount of snow that can be collected by the snow collecting element 131. Therefore, it is necessary to reduce the walking speed of the walking component 12 as the thickness of the snow changes.

[0140] In this embodiment, when the control device 30 controls the rotation speed of the first motor 132 , the rotation speed of the second motor 142 may not change with the change of the rotation speed of the first motor 132 , so that the rotation speed of the second motor 142 remains unchanged.

[0141] In some embodiments, the control device 30 is also configured to adjust the rotation speed of the first motor 132 according to the state of the snow, and then control the walking speed of the walking component 12 according to the state of the snow and the rotation speed of the first motor 132, so that the snowplow 100 can clear the snow at a relatively more reasonable speed, thereby improving work efficiency.

[0142] When the snowplow 100 is in a heavy-load condition, that is, when the state parameter of the snow is greater than the first preset value, the speed of the first motor 132 is kept constant at the first constant speed value. This allows the snowplow 100 to work as close to the maximum efficiency point as possible under the heavy-load condition. At this time, the walking speed of the walking component 12 decreases as the state parameter of the snow increases, thereby ensuring that the snowplow 100 is less likely to be blocked and that the amount of snow collected by the walking component 12 is less than or equal to the amount of snow collected by the snow collecting element 131.

[0143] When the snowplow 100 is in a light load condition, that is, when the state parameter of the snow is less than the first preset value, the speed of the first motor 132 is less than the first constant speed value, and the speed of the first motor 132 increases with the increase of the state parameter of the snow. At this time, the walking speed of the walking component 12 is constant at the second constant speed value, and the snowplow 100 can clear the snow at a faster speed, thereby improving the working efficiency. Among them, when the state parameter of the snow is greater than the first preset value, the walking speed is still less than the second constant speed.

[0144] Another control method of the snowplow 100 is also provided in one embodiment of the present application. FIG. 17 is a control flow chart of one embodiment of the snowplow 100. Figure 1 and Fig.17 , control methods include: S201, start the snowplow 100. Starting the snowplow 100 may refer to powering on the snowplow 100 and starting the travel motor 122 so that the snowplow 100 moves on the ground. Alternatively, the first motor 132 and / or the second motor 142 of the snowplow 100 may also be started.

[0145] S202, obtaining the state parameter of snow. The state parameter of snow can be detected by the detection device 40, and the state parameter of snow can be the thickness of snow or the density of snow.

[0146] S203 , obtaining the walking speed and the rotation speed of the first motor 132 according to the state parameters of the snow. The control device 30 obtains the walking speed and the rotation speed of the first motor 132 according to the state parameters of the snow and the mapping relationship stored in the memory 32 .

[0147] S204, controlling the walking motor 122 and the first motor 132 according to the acquired walking speed and the rotation speed of the first motor 132. According to the acquired walking speed and the rotation speed of the first motor 132, the duty cycle of the walking motor 122 and the duty cycle of the first motor 132 are controlled, thereby controlling the output rotation speed of the walking motor 122 and the output rotation speed of the first motor 132.

[0148] like Figures 1 to 3As shown, the detection device 40 includes a first detection component 41 and a second detection component 42. The first detection component 41 is used to detect the snow on the left side of the snow collecting hood 111, and the second detection component 42 is used to detect the snow on the right side of the snow collecting hood 111. In this way, when the snowplow 100 is clearing the snow on the left side, the state parameters of the snow can be detected by the first detection component 41, and when the snowplow 100 is clearing the snow on the right side, the state parameters of the snow can be detected by the second detection component 42. Thereby, the snowplow 100 can be applied to more working conditions and can also meet the different usage habits of users. Moreover, the first detection component 41 and the second detection component 42 can also make the detection structure more accurate.

[0149] like Figure 2 , Fig.11 and Fig.18 As shown, the first detection assembly 41 can be installed at the first side wall 111b of the snow collecting cover 111 so that the first detection assembly 41 is located outside the main housing 11, and the second detection assembly 42 can be installed at the second side wall 111c so that the second detection assembly 42 is located outside the main housing 11. Installing the detection device 40 on the side of the snow collecting cover 111 can prevent the snow collected by the snowplow 100 during the snow sweeping process from affecting the accuracy of the detection result.

[0150] The first detection component 41 includes: a first detection element 411 and a first sensor 412. In this embodiment, the first detection element 411 can be used to detect the thickness of snow. Specifically, the first detection element 411 can be driven by the snow in front of or on the left side of the snowplow 100 to change its position. The first detection element 411 is installed on the first side wall 111b, and the first detection element 411 can rotate relative to the snow collecting cover 111. Fig.18 As shown, when snow of a certain thickness contacts the first detection element 411, the first detection element 411 will be driven to rotate, and the angle of rotation of the first detection element 411 changes with the thickness of the snow. The thicker the snow, the larger the angle of rotation of the first detection element 411. The thinner the snow, the smaller the angle of rotation of the first detection element 411, and the thicker the snow, the larger the angle of rotation of the first detection element 411. The first sensor 412 is used to detect the position change of the first detection element 411. For example, the first sensor 412 can be a position sensor, an angle sensor, etc.

[0151] The second detection component 42 has a corresponding second detection element 421 and a second sensor 422. The first detection assembly 41 is mounted to the outside of the first side wall 111b to detect the thickness of snow outside the first side wall 111b, and the second detection assembly 42 is mounted to the outside of the second side wall 111c to detect the thickness of snow outside the second side wall 111c.

[0152] The control device 30 is connected to the first detection component 41 and the second detection component 42 to obtain the detection data of the first detection component 41 and the second detection component 42. The control device 30 can obtain the state parameters of the current snow according to the state parameters of the snow on the left side detected by the first detection component 41 and / or the state parameters of the snow on the right side detected by the second detection component 42. When the snowplow 100 is clearing the snow on the left side, the first detection device 40 will detect the state parameters of the snow on the left side. If the second detection component 42 does not detect the data, the control device 30 can control the snowplow 100 only according to the data detected by the first detection component 41. When the snowplow 100 is clearing the snow on the right side, the second detection device 40 will detect the state parameters of the snow on the right side. If the first detection component 41 does not detect the data, the control device 30 can control the snowplow 100 only according to the data detected by the second detection component 42.

[0153] In some embodiments, the first detection component 41 can detect the first data, the second detection component 42 can detect the second data, and the control device 30 can sum the first data and the second data and take the average value, and use the average value as the current snow state parameter. Alternatively, after obtaining the first data and the second data, the control device 30 can use the larger of the first data and the second data as the current snow state parameter.

[0154] In some embodiments, the detection device can also be a sensor for detecting current. The detection device can detect the current flowing through the first motor, and the control device adjusts the walking speed of the walking component according to the current flowing through the first motor. We know that the current of the first motor will change with the state of the snow, so the current of the first motor can also reflect the change in the state of the snow. Therefore, the control device can determine the load of the snowplow, that is, the thickness of the snow, by obtaining the current of the first motor. At this time, the control device controls the walking speed to adapt to the change in the thickness of the snow.

[0155] Alternatively, the detection device may also detect the current flowing through the second motor, and the control device adjusts the travel speed of the travel component according to the current flowing through the second motor.

[0156] like Fig.19 The snowplow 200 of another embodiment is shown. Figure 1 The snowplow 100 in the embodiment is basically the same, the difference mainly lies in the detection device 201. Figure 1 All of the snow blowers 100 can be used for Fig.19 The structure of the snowplow 200 in the above-mentioned embodiment can be applied to this embodiment and will not be described in detail.

[0157] In this embodiment, the detection device 201 is installed at the top wall 202a of the snow collecting cover 202. For example, the detection device 201 can be installed on the upper side of the top wall 202a, the detection device 201 is electrically connected to the control device, and the cable in the detection device 201 can pass through the first motor housing 203 and then extend to the control device at the outer wall of the snow collecting cover 202. The detection device 201 can be an ultrasonic sensor, an infrared sensor, etc.

[0158] exist Figure 1 and Fig.19 The snowplows 100 and 200 shown are two-stage snowplows, that is, the snow guiding process includes a snow collecting element 131 and a snow throwing element 141. In fact, in other types of snowplows, the snow guiding process may also include a transfer element arranged between the snow collecting element and the snow throwing element, and the transfer element can rotate relative to the main housing. The transfer element can transfer the snow collected by the snow collecting element to the snow throwing element through high-speed rotation, and then the snow throwing element guides the snow to the snow throwing barrel. The transfer element can be driven by a third motor. In this way, the control device can control the rotation speed of the first motor and / or the second motor and / or the third motor, thereby improving the working efficiency of the snowplow.

[0159] like Fig. 20 and 21 The snowplow 300 shown in the figure has a snow collecting device, a snow throwing device, and a walking device that are basically the same as those in the first embodiment. The main difference is that the operating component also includes a mode setting member 301. The mode setting member 301 is for the user to operate and select the working mode. The mode setting member 301 can make the snowplow 300 at least in the first working mode and the second working mode. In the first working mode, the control device 304 can control the walking motor 302 to run at a first preset speed, and control the first motor 303 to run at a second preset speed. In the second working mode, the control device 304 can control the walking motor 302 to run at a third preset speed, and control the first motor 303 to run at a fourth preset speed. Among them, the third preset speed is different from the first preset speed, or the fourth preset speed is different from the second preset speed. In this way, the user can select the first working mode or the second working mode by observing the state of the snow, without setting a detection component for detecting the state of the snow, so that the control of the snowplow 300 is more accurate, and it can avoid the situation that the detection device may have inaccurate detection under complex working conditions. Alternatively, the user can also set the working mode of the snow sweeper 300 according to work needs. The memory 305 can store the corresponding travel speeds and rotation speeds of the snow collecting element under different working modes, and the control device 304 can calculate the corresponding rotation speeds of the travel motor 302 and the first motor 303 under different working modes according to the corresponding travel speeds and the rotation speeds of the snow collecting element.

[0160] The first working mode may be a light load mode, such as Fig. 22 As shown, the first working mode may correspond to the light load working condition, which is suitable for clearing snow below 0.05m. The user observes that the snow to be cleared is very thin, which may be below 0.05m. At this time, the user can set the snow sweeper 300 to enter the first working mode through the mode setting member 301. The second working mode may be the medium load mode, which may be Fig. 22 The medium load gear 1 is suitable for clearing snow with a thickness of 0.05m to 0.1m.

[0161] In some embodiments, the mode setting member 301 can also be configured to enable the snowplow 300 to enter a third working mode. When the snowplow 300 is in the third working mode, the control device 304 controls the travel motor 302 to operate at a fifth preset speed and controls the first motor 303 to operate at a sixth preset speed. Fig. 22 As shown, the third working mode may correspond to the working condition of medium load gear 2. The working condition of medium load gear 1 is suitable for clearing snow of 0.1m to 0.2m.

[0162] In some embodiments, the mode setting member 301 can also be configured to enable the snowplow 300 to enter a fourth working mode and a fifth working mode. Fig.21 As shown, the fourth working mode may correspond to the working condition of medium load 3rd gear, and the fifth working mode may correspond to the working condition of heavy load. The number of working modes is not limited thereto.

[0163] In this embodiment, the snow collecting element and the snow throwing element are Figure 1 The snow sweeper 100 is driven by the first motor 303 and the second motor 306, respectively, and the details are not repeated. When the control device 304 controls the speed of the first motor 303, the speed of the second motor 306 does not change with the change of the speed of the first motor 303. If the snow throwing distance has been set, the speed of the second motor 306 can remain unchanged.

[0164] We know that it takes a certain amount of experience for the user to observe the thickness of the snow to determine which working mode the snowplow 300 should be set to, and this may cause a problem of mode mismatch. Therefore, in this embodiment, a first mark 308 corresponding to the first working mode and a second mark 309 corresponding to the second working mode are also provided on the snow collecting cover 307. Among them, the first mark 308 can be a first mark line at a first height from the ground, and the first mark line can intuitively reflect the thickness of the snow. The first mark 308 can be a first mark line at a second height from the ground. When the thickness of the snow is below the first mark line, the user can use the mode setting member 301 to make the snowplow 300 enter the first working mode. When the thickness of the snow is between the first mark line and the second mark line, the user can use the mode setting member 301 to make the snowplow 300 enter the second working mode.

[0165] In some embodiments, the snow collecting cover 307 may also be provided with a third marking line corresponding to the third working mode, a fourth marking line corresponding to the fourth working mode, and a fifth marking line corresponding to the fifth working mode.

[0166] Specifically, Fig.21 As shown, the first marking line 308 can be set on the snow collecting cover 307 at a height of 0.05m from the ground, the second marking line can be set on the snow collecting cover 307 at a height of 0.1m from the ground, the third marking line can be set on the snow collecting cover 307 at a height of 0.2m from the ground, the fourth marking line can be set on the snow collecting cover 307 at a height of 0.3m from the ground, and the fifth marking line can be set on the snow collecting cover 307 at a height of 0.4m from the ground.

[0167] like Fig.23 The rear-walking power tool of one embodiment shown is specifically a snowplow 500, which is used for users to clear snow on the ground such as roads, courtyards, or gardens. In this embodiment, the snowplow 500 is taken as an example of a rear-walking snowplow. When working, the user holds the rear-walking snowplow and pushes the rear-walking snowplow behind the rear-walking snowplow to walk on the ground, or walks on the ground with the rear-walking snowplow. In some embodiments, the snowplow 500 can also be an intelligent snowplow, which can move on the ground to clear the snow on the ground without the user following. Or, in some embodiments, the snowplow 500 can also be a manned snowplow, and the user can be supported by the manned snowplow and walk with the manned snowplow 500. It can be understood that the specific structural form of the snowplow 500 is not limited by the relationship with the user, as long as the snowplow 500 includes at least part of the scheme described below in this application, it belongs to the scope of protection of this application.

[0168] In order to facilitate the description of the technical solution of the application, the following are also defined: Fig.23 The directions of the arrows in the figure are upward, downward, front, rear, left and right. Of course, the directions of the present embodiment are not limited thereto.

[0169] like Fig.23 and Fig.24 As shown, the snowplow 500 includes: a main body 510 and a handle device 520, and the handle device 520 is connected to the rear end of the main body 510 for the user to hold and operate. The main body 510 includes: a main housing 530, a walking assembly 540, a snow removal device 550, a power device 560 and a power supply device 570. The main housing 530 is used as the main frame of the snowplow 500 to support the snow removal device 550 and the power supply device 570. The walking assembly 540 is used to support the main housing 530 to drive the snowplow 500 to walk on the ground. The snow removal device 550 is used to clear the snow on the ground to throw the snow to a preset position. In this way, the snowplow 500 can clear the snow on the ground, throw the snow to a place where pedestrians do not often go, or clear the snow together. The power device 560 is used to drive the snow removal device 550 to move, and the power supply device 570 is used to supply power to the walking assembly 540 and the power device 560.

[0170] like Figure 23 to Figure 24 The handle device 520 is connected to the rear end of the main housing 530. When the user pushes or walks with the snowplow 500, the user stands behind the snowplow 500 and holds the handle device 520. The handle device 520 includes: a connecting rod 521, an operating component 522, and a gripping handle 523. The connecting rod 521 connects the operating component 522 and the main unit 510. The gripping handle 523 is arranged at one end of the connecting rod 521 away from the main unit 510. The gripping handle 523 includes a left handle and a right handle, and the left handle and the right handle are respectively provided for the user to hold with both hands. The operating component 522 includes: an operating table and a plurality of operating members, the operating table is connected to the two connecting rods 521, and a plurality of operating switches are installed on the operating table. The operating members are operated by the user to control the snowplow 500, for example, to control the walking component 540, the snow removal device 550, etc. A plurality of operating switches are also arranged in the operating table, and the plurality of operating switches are electrically connected to the plurality of operating members. The handle device 520 also includes: a connecting cable, which is used to electrically connect the multiple operating switches to the host 510. In some embodiments, the operating component 522 may also include a remote controller for controlling the host 510, and the remote controller may be separated from the host 510. The remote controller may be detached from the snowplow 500 or independently provided relative to the snowplow 500, so that the user can control the snowplow 500.

[0171] The main housing 530 is connected to an end of the connecting rod 521 away from the operating assembly 522. Fig.23 and Fig.25As shown, the main housing 530 also includes a snow collecting cover 531 and a snow throwing housing 532. The snow collecting cover 531 is arranged at the front side of the snow throwing housing 532 and is formed with an opening 533 that opens forward, and the snow throwing housing 532 is arranged at the rear side of the snow collecting cover 531 and communicates with the snow collecting cover 531. The snowplow 500 also includes a snow throwing barrel assembly 580, which is installed to the main housing 530 and is used to guide the throwing direction of snow. The snow throwing barrel assembly 580 is connected to the snow throwing housing 532. During the snow-clearing process of the snowplow 500, the snow passes through the opening 533, the snow collecting cover 531, the snow throwing housing 532 and the snow throwing barrel assembly 580 in sequence, and then is thrown to a preset position. The snow collecting cover 531 includes a top wall 5311, a first side wall 5312, a second side wall 5313 and a rear wall 5314, which surround and form the internal space of the snow collecting cover 531. The first side wall 5312 and the second side wall 5313 may be a left side wall and a right side wall, respectively.

[0172] The power supply device 570 is mounted to the main housing 530. The power supply device 570 includes at least one battery pack 571 for energy storage, and the battery pack 571 is detachably mounted to the main housing 530. In this embodiment, the power supply device 570 includes at least two battery packs 571, so that the power supply device 570 can provide enough power to extend the battery life of the snow blower 500. The main housing 530 also includes a battery compartment 534 for accommodating the power supply device 570, and the two battery packs 571 are pluggable and arranged in the battery compartment 534. It can be understood that in other embodiments, the power supply device 570 can also be a power supply cable, and the cable can be connected to the AC mains, or connected to other energy storage devices. The main housing 530 also includes a compartment cover 535 for covering the battery compartment 534, and the compartment cover 535 is rotatably connected to the battery compartment 534. The rotation axis of the compartment cover 535 can extend in the left-right direction so that the compartment cover 535 opens from front to back, or from back to front. The rotation axis of the compartment cover 535 can also extend in the front-to-back direction so that the compartment cover 535 can be opened from the left side to the right side, or from the right side to the left side, so that the user does not need to twist his arm to trigger the lock on the compartment cover 535.

[0173] The walking assembly 540 includes a walking wheel 541 for driving the snowplow 500 to walk on the ground, and also includes a walking motor 542 for driving the walking wheel 541 to rotate, wherein the walking motor 542 drives the walking wheel 541 to rotate around the walking axis. The walking wheel 541 includes a left walking wheel and a right walking wheel. The left walking wheel and the right walking wheel are respectively arranged on both sides of the main housing 530 and support the main housing 530. The power supply device 570 can supply power to the walking motor 542. In the left and right directions, the power supply device 570 is arranged between the left walking wheel and the right walking wheel. In the up and down directions, the power supply device 570 is at least partially arranged on the upper side of the left walking wheel and the right walking wheel. The walking motor 542 is arranged below the power supply device 570, and the walking motor 542 is connected to the left walking wheel and the right walking wheel through a reduction assembly. In the present embodiment, the number of the walking motor 542 is 1, and the reduction assembly can include a clutch, so that there can be a speed difference between the left walking wheel and the right walking wheel, thereby realizing the steering action of the snowplow 500. It is understood that in some embodiments, the travel assembly 540 may include two travel motors 542, and the two travel motors 542 drive the left travel wheel and the right travel wheel respectively, so that there can be a speed difference between the left travel wheel and the right travel wheel, thereby realizing the steering action of the snowplow 500. In this embodiment, the travel motor 542 is an outer rotor motor, which is located outside the travel wheel 541 and drives the travel wheel 541 through the reduction assembly. It is understood that in some embodiments, the travel motor 542 can also be a hub motor, and the hub motor is at least partially arranged in the travel wheel 541 to drive the travel wheel 541 to rotate. In some embodiments, the travel motor 542 can also be a wheel side motor, and the wheel side motor is arranged close to the travel wheel 541 to drive the travel wheel 541 to rotate.

[0174] In this embodiment, the power supply device 570 at least supplies power to the travel motor 542. The nominal voltage of the battery pack 571 is greater than or equal to 24V, so that the power supply device 570 can load a motor with higher power, thereby improving the load capacity of the snowplow 500.

[0175] In some embodiments, the nominal voltage of the battery pack 571 is greater than or equal to 24 V. In some embodiments, the nominal voltage of the battery pack 571 is greater than or equal to 40 V. In some embodiments, the nominal voltage of the battery pack 571 is greater than or equal to 48 V. In some embodiments, the nominal voltage of the battery pack 571 can be, for example, 24 V, 36 V, 40 V, 56 V, 80 V, etc.

[0176] It can be understood that in some embodiments, the nominal voltage of the battery pack 571 can also be 4V to 24V, and then a plurality of battery packs 571 can be connected in series to obtain a power supply device 570 with a higher output voltage.

[0177] In some embodiments, the battery pack 571 may also be fixedly connected to the main housing 530 , and the battery pack 571 may be a built-in battery pack disposed within the main housing 530 .

[0178] In some embodiments, the battery pack 571 is detachably connected to the main housing 530 , and the battery pack 571 is platform-based and can power handheld power tools, riding power tools, all-terrain vehicles, etc.

[0179] In some embodiments, the battery pack 571 can be a lithium battery pack, a lithium iron phosphate battery pack, a supercapacitor battery pack, a solid-state battery pack, a semi-solid-state battery pack, a soft-pack battery pack, a sodium-ion battery pack, a silicon-carbon battery pack, or a full-tab battery pack.

[0180] like Fig.23 As shown in FIG. 25 , the snow removal device 550 includes: a first-stage snow removal assembly 551, a second-stage snow removal assembly 552, and a third-stage snow removal assembly 553. When the snowplow 500 is sweeping snow, the first-stage snow removal assembly 551 usually contacts the snow first and throws the snow to the second-stage snow removal assembly 552, and the second-stage snow removal assembly 552 then throws the snow to the third-stage snow removal assembly 553. The order of the levels of the snow removal assemblies is basically consistent with the order in which the snow passes through the snow removal assemblies. The first-stage snow removal assembly 551 includes a first snow removal blade 5511 and a first mounting shaft 5512 for mounting the first snow removal blade 5511. The second-stage snow removal assembly 552 includes a second snow removal blade 5521 and a second mounting shaft 5522 for mounting the second snow removal blade 5521. The third-stage snow removal assembly 553 includes a third snow removal blade 5531 and a third mounting shaft 5532 for mounting the third snow removal blade 5531. In this embodiment, the ratio of the rotation speed of the third snow removal blade 5531 to the rotation speed of the first snow removal blade 5511 is greater than or equal to 6 and less than or equal to 18.

[0181] In this embodiment, the ratio of the total energy of all the battery packs 571 included in the power supply device 570 to the number of snow removal components in the snow removal device 550 is greater than or equal to 45Wh and less than or equal to 1000Wh. For example, in this embodiment, the snow removal device 550 includes a first-stage snow removal component 551, a second-stage snow removal component 552, and a third-stage snow removal component 553, and the number of snow removal components in the snow removal device 550 is 3. It can be understood that in other embodiments, the snow removal device 550 may also include a fourth-stage snow removal component, so that the number of snow removal components in the snow removal device 550 is 4. In some embodiments, the total energy of all the battery packs 571 included in the power supply device 570 is greater than or equal to 140Wh and less than or equal to 3000Wh.

[0182] In this embodiment, the ratio of the total energy of all battery packs 571 included in the power supply device 570 to the distance L1 between the left side wall and the right side wall is greater than or equal to 175Wh / m and less than or equal to 5500Wh / m. In this way, for a larger snowplow 500, the number of stages of the snow removal device 550 is large enough to clear the snow covered by the snowplow 500 in the width direction, and the total energy of the power supply device 570 is large to extend the battery life of the snowplow with more stages and larger size, providing a snowplow 500 with higher efficiency, stronger performance and longer battery life. Specifically, the distance L1 between the left side wall and the right side wall is greater than or equal to 550mm. The no-load battery life of the snowplow 500 is greater than or equal to 10min.

[0183] In this embodiment, the first installation shaft 5512 of the first snow removal assembly 551 extends in the left-right direction, and the first snow removal blade 5511 can rotate along the first axis 501 along the first installation shaft 5512. When the snowplow 500 is running, the first snow removal blade 5511 can rotate quickly to collect snow on the ground and enter the snow collecting cover 531 from the opening 533. In this way, the first snow removal assembly 551 can be considered to belong to a snow collecting device.

[0184] The second-stage snow removal assembly 552 is disposed at the rear side of the first-stage snow removal assembly 551, and is used to receive the snow collected by the first-stage snow removal assembly 551. The second mounting shaft 5522 of the second-stage snow removal assembly 552 extends in the front-to-back direction, and the second mounting shaft 5522 is substantially perpendicular to the first mounting shaft 5512. The second snow removal blade 5521 is mounted on the second mounting shaft 5522 and rotates around the second axis 502 along with the second mounting shaft 5522. The second-stage snow removal device 550 is used to receive the snow thrown by the first-stage snow removal device 550, and then continue to transfer the snow to the third-stage snow removal assembly 553.

[0185] The third mounting shaft 5532 of the third-stage snow removal assembly 553 also extends in the front-to-back direction, and the third snow removal blade 5531 is mounted on the third mounting shaft 5532. The third snow removal blade 5531 rotates around the third axis 503 along with the third mounting shaft 5532. The third mounting shaft 5532 is perpendicular to the first mounting shaft 5512. In this embodiment, the third mounting shaft 5532 is coaxial with the second mounting shaft 5522. For example, the third mounting shaft 5532 and the second mounting shaft 5522 are integrally formed, that is, the third mounting shaft 5532 and the second mounting shaft 5522 are the same shaft, or the third mounting shaft 5532 and the first mounting shaft 5512 are separately formed and then fixedly connected. In some other embodiments, the third mounting shaft 5532 and the first mounting shaft 5512 can also be coaxial but parallel to each other, so that a transmission assembly can be provided between the first mounting shaft 5512 and the third mounting shaft 5532.

[0186] In some embodiments, the ratio of the number of battery packs 571 to the number of snow removal components in the snow removal device 550 is greater than or equal to 1:3 and less than or equal to 6:3. In some embodiments, the ratio of the number of battery packs 571 to the number of snow removal components in the snow removal device 550 is greater than or equal to 2:3 and less than or equal to 4:3. In this way, the battery pack 571 can meet the requirements of the battery life of the snowplow 500 and increase the snow removal time of the snowplow 500.

[0187] like Fig.24 As shown, the power device 560 includes at least one motor, and the power supply device 570 is used to supply power to the motor. In this embodiment, the at least one motor includes two motors, one of the two motors drives at least one level of snow removal components in the snow removal device 550, and the other of the two motors drives at least another level of snow removal components in the snow removal device 550, and the power supply device 570 is used to supply power to the two motors. For example, in this embodiment, the at least one motor includes: a first motor 561 and a third motor 562. Among them, the first motor 561 is used to drive the first level of snow removal components 551, and the third motor 562 is used to drive the third level of snow removal components 553. In this embodiment, the third motor 562 further drives the second level of snow removal components 552.

[0188] A first reduction assembly 563 is also provided between the first motor 561 and the first-stage snow removal assembly 551. The reduction ratio of the first reduction assembly 563 is greater than or equal to 40 and less than or equal to 200. In this way, the first-stage snow removal assembly 551 can have a larger output torque, can drive thicker and heavier snow, and improve the load capacity of the snowplow 500. The output speed of the first motor 561 is greater than or equal to 5000 rpm and less than or equal to 20000 rpm. In this way, the first motor 561 can output a higher speed and improve the working efficiency of the snowplow 500. In some embodiments, the reduction ratio of the first reduction assembly 563 is greater than or equal to 80 and less than or equal to 120. In some embodiments, the reduction ratio of the first reduction assembly 563 is greater than or equal to 60 and less than or equal to 180. In some embodiments, the speed of the first motor 561 is greater than or equal to 10000 rpm and less than or equal to 14000 rpm.

[0189] In this embodiment, the first motor 561 can be an outer rotor motor. The diameter of the first motor 561 is greater than or equal to 30 mm and less than or equal to 110 mm. In this way, the size of the first motor 561 is small, so that the first motor 561 can be arranged in a suitable position of the main housing 530 without taking up too much space. The stator stack length of the first motor 561 is greater than or equal to 10 mm and less than or equal to 50 mm, and the weight of the first motor 561 is greater than or equal to 0.4 kg and less than or equal to 2.5 kg. In some embodiments, the diameter of the first motor 561 is greater than or equal to 35 mm and less than or equal to 95 mm.

[0190] A second reduction assembly 564 is further provided between the third motor 562 and the third snow removal assembly 553, and the second reduction assembly 564 connects the third motor 562 and the third mounting shaft 5532. The reduction ratio of the second reduction assembly 564 is greater than or equal to 4 and less than or equal to 20.

[0191] The third motor 562 may be an outer rotor motor. The diameter of the third motor 562 is greater than or equal to 60 mm and less than or equal to 135 mm. In this way, the size of the third motor 562 is small, so that the third motor 562 can be arranged in a suitable position of the main housing 530 without taking up too much space. The stator stack length of the third motor 562 is greater than or equal to 10 mm and less than or equal to 60 mm, and the weight of the third motor 562 is greater than or equal to 1 kg and less than or equal to 6 kg. In some embodiments, the diameter of the third motor 562 is greater than or equal to 85 mm and less than or equal to 135 mm.

[0192] In this embodiment, the load output power of the motor driving the third snow removal assembly 553 is greater than the load output power of the motor driving the first snow removal assembly 551. For example, in this embodiment, the load output power of the third motor 562 is greater than the load output power of the first motor 561. When the snowplow 500 includes the first motor 561, the second motor and the third motor 562, the load output power of the third motor 562 is greater than the load output power of the first motor 561, and is also greater than the load output power of the second motor.

[0193] It can be understood that in this embodiment, the third motor 562 is used to drive both the third-stage snow removal assembly 553 and the second-stage snow removal assembly 552, so the third motor 562 can also be referred to as the second motor. Alternatively, in other embodiments, the first motor 561 drives the first-stage snow removal assembly 551 and the second-stage snow removal assembly 552, and the third motor 562 drives the third-stage snow removal assembly 553, in which case the third motor 562 can also be referred to as the second motor.

[0194] like Fig.26As shown, the snowplow 500 also includes a control device 590 for controlling the power device 560 and the travel component 540. The control device 590 is configured to control the first motor 561 and the third motor 562, and the first motor 561 and the third motor 562 respectively drive the first-stage snow removal component 551 and the third-stage snow removal component 553, thereby realizing the decoupling control of the first-stage snow removal component 551 and the second-stage snow removal component 552. In this way, the control device 590 can control the speed of the first motor 561 according to the actual situation of snow accumulation without changing the speed of the third-stage snow removal component 553. At the same time, the control device 590 can also control the speed of the third motor 562 according to the snow throwing distance. The third motor 562 drives the third-stage snow removal component 553 to rotate, and the speed of the third-stage snow removal component 553 is related to the snow throwing distance of the snowplow 500. When the speed of the third-stage snow removal component 553 increases, the snow throwing distance of the snowplow 500 will also increase. When the speed of the third snow removal assembly 553 decreases, the snow throwing distance of the snowplow 500 will also decrease. Fig.26 As shown, the snowplow 500 further includes a detection device 591, which is used to detect the current of the motor driving the third-stage snow removal assembly 553, such as detecting the current of the third motor 562. When the detection device 591 detects that the current is greater than a preset value, the control device 590 controls the current flowing through the first motor 561 to decrease.

[0195] The distance between the position where the snow falls on the ground after being guided by the snow throwing cylinder assembly 580 and the central axis of the snow throwing cylinder assembly 580 is defined as the snow throwing distance. The maximum snow throwing distance that the snowplow 500 can achieve is greater than or equal to 8m and less than or equal to 20m. In this way, the maximum snow throwing distance of the snowplow 500 can be increased by controlling the first motor 561 and the third motor 562 respectively through the control device 590. At the same time, because the second-stage snow removal assembly 552 is also provided, the maximum snow throwing distance of the snowplow 500 can also be further increased. In this embodiment, the ratio of the maximum snow throwing distance to the number of motors used to drive the snow removal device 550 is greater than or equal to 2.5m and less than or equal to 10m.

[0196] like Fig.23 and Fig.24 As shown, the first motor 561 is disposed on the upper side of the first-stage snow removal assembly 551. The first motor 561 is also disposed on the outer side of the top wall 5311 of the snow collecting cover 531.

[0197] The plurality of operating switches include at least one start switch 592. In the present embodiment, the start switch 593 is configured to control the start and stop of the first motor 561 and the third motor 562.

[0198] In some embodiments, the power device 560 includes: a first motor 561 driving the first-stage snow removal assembly 551, a second motor driving the second-stage snow removal assembly 552, and a third motor 562 driving the third-stage snow removal assembly 553. In this case, the snowplow 500 may include two start switches, one start switch (first start switch 593) controls one of the first motor 561, the second motor, and the third motor 562, and the other start switch (second start switch 594) controls the other two of the first motor 561, the second motor, and the third motor 562. For example, the first start switch 593 controls the start or stop of the first motor 561, and the second start switch 594 controls the start or stop of the second motor and the third motor 562. Alternatively, in some embodiments, the start or stop of the first motor 561, the second motor, and the third motor 562 may also be controlled by one start switch.

[0199] like Fig.24 As shown, the second mounting shaft 5522 and the second snow removal blade 5521 are located at the rear side of the first snow removal blade 5511. The second-stage snow removal assembly 552 and the first-stage snow removal assembly 551 do not overlap in the front-to-back direction, so that the second snow removal blade 5521 and the first snow removal blade 5511 are arranged at intervals in the front-to-back direction. Therefore, the snow scraped by the first-stage snow removal assembly 551 can be more smoothly transferred to the second-stage snow removal assembly 552, reducing snow drop.

[0200] like Fig.28 A perspective view of a portion of a snow sweeper according to another embodiment is shown. Fig.28 and Fig.29 As shown, this embodiment and Fig.23 The snowplow 500 of the illustrated embodiment has substantially the same structure. Figure 23 to Figure 27 All the solutions of the snowplow 500 that can use the snowplow of this embodiment can be applied to this embodiment. Fig.23 The different parts of the snowplow 500 in the figure are shown, and other identical parts are not repeated. In this embodiment, the second-stage snow removal assembly 552a and the first-stage snow removal assembly 551a overlap in the front-to-back direction. Specifically, the first-stage snow removal assembly 551a includes two first snow removal knives 5511a, and the two first snow removal knives 5511a are spaced a certain distance apart so that the second snow removal knife 5521a is arranged between the two first snow removal knives 5511a. In this way, the distance between the second snow removal knife 5521a and the first mounting shaft 5512a can be shortened, thereby reducing the space occupied by the snow removal device 550a in the front-to-back direction.

[0201] like Fig.30 A perspective view of a portion of a snow sweeper according to another embodiment is shown. Fig.30 and Fig.31 As shown, this embodiment and Fig.23 The snowplow 500 of the illustrated embodiment has substantially the same structure. Figure 23 to Figure 27 All the solutions of the snowplow 500 that are applicable to the snowplow of this embodiment can be applied to this embodiment. Fig.23 The different parts of the embodiment shown, other identical parts are not repeated. In this embodiment, the first motor 561b drives the first-stage snow removal assembly 551b, the third motor 562b drives the third-stage snow removal assembly 553b, and the power of the second-stage snow removal assembly 552b comes from the first motor 561b, that is, the first motor 561b also drives the second-stage snow removal assembly 552b. Specifically, the first motor 561b drives the first-stage snow removal assembly 551b through the first reduction assembly, and the first motor 561b also drives the second-stage snow removal assembly 552b through the second reduction assembly, wherein the first reduction assembly and the second reduction assembly can be arranged in the first reduction housing, and the first installation shaft 5512b and the second installation shaft 5522b both extend into the first reduction housing. The second installation shaft 5522b and the third installation shaft 5532b are disengaged.

[0202] like Fig.32 A perspective view of a portion of a snow sweeper according to another embodiment is shown. Fig.32 and Fig.33 As shown, this embodiment and Fig.30 The snow blowers of the illustrated embodiments have substantially the same structure. Figure 30 to Figure 31 All the solutions of the snow sweeper that are applicable to the present embodiment can be applied to the present embodiment. Fig.30 The different parts of the embodiment shown are shown, and other identical parts are not repeated. In this embodiment, the first installation shaft 5512c of the first-stage snow removal assembly 551c extends in the front-to-back direction, the second-stage snow removal assembly 552c includes two second snow removal blades 5521c, the second installation shaft 5522c extends in the left-right direction, and the first snow removal blade 5511c is arranged at the front side of the second installation shaft 5522c. In this embodiment, the second installation shaft 5522c extends in the left-right direction, and the ratio of the rotation speed of the third snow removal blade 5531c to the rotation speed of the second snow removal blade 5521c is greater than or equal to 6 and less than or equal to 18.

[0203] like Fig.34 A perspective view of a portion of a snow sweeper according to another embodiment is shown. Fig.34 and Fig.35 As shown, the snow sweeper of this embodiment is Fig.32 The snow blowers of the illustrated embodiments have substantially the same structure. Fig.32 and Fig.33 All the solutions of the snow sweeper that are applicable to the present embodiment can be applied to the present embodiment. Fig.32 The different parts of the embodiment shown, other identical parts are not repeated. In this embodiment, the first-stage snow removal assembly 551d includes two first snow removal blades 5511d, and the two first snow removal blades 5511d are respectively arranged on the front side and the rear side of the second snow removal blade 5521d, a part of the first mounting shaft 5512d is located on the front side of the second mounting shaft 5522d to install a first snow removal blade 5511d, and another part of the first mounting shaft 5512d is located on the rear side of the second mounting shaft 5522d to install another first snow removal blade 5511d. In this embodiment, when the snowplow is working, the first snow removal blade 5511d located on the front side of the second mounting shaft 5522d is used to scrape the snow on the ground, that is, to collect snow. The first snow removal blade 5511d located on the rear side of the second mounting shaft 5522d is used to transfer the snow stirred by the second snow removal blade 5521d to the third snow removal blade 5531d, that is, to throw snow.

[0204] like Fig.36 A perspective view of a portion of a snow sweeper according to another embodiment is shown. Fig.36 Fig.37 The snow sweeper of this embodiment is Fig.23 The snowplow 500 of the embodiment shown in the figure has basically the same structure. Figure 23 to Figure 27 All the solutions of the snowplow 500 that are applicable to the snowplow of this embodiment can be applied to this embodiment. Fig.23 The different parts of the embodiment shown, other identical parts are not repeated. In this embodiment, the power device 560e includes a second motor 565e and a third motor 562e, the second motor 565e drives the second-stage snow removal assembly 552e, and the third motor 562e drives the first-stage snow removal assembly 551e and the third-stage snow removal assembly 553e. The second installation shaft 5522e extends in the left-right direction, the first installation shaft 5512e extends in the front-back direction, and the third installation shaft 5532e extends in the front-back direction. Among them, the first installation shaft 5512e and the third installation shaft 5532e are coaxial. In other embodiments, the first installation shaft and the third installation shaft may not be coaxial, but may be spaced apart and parallel to each other. In this embodiment, the first mounting shaft 5512e and the third mounting shaft 5532e are integrally formed, a portion of the integral body formed by the first mounting shaft 5512e and the third mounting shaft 5532e is located at the front side of the second mounting shaft 5522e to mount the first snow removal blade 5511e, and another portion of the integral body is located at the rear side of the second mounting shaft 5522e to mount the third snow removal blade 5531e. In other embodiments, the first mounting shaft and the second mounting shaft can be separately provided and then fixedly connected.

[0205] like Fig.38 The figure is a three-dimensional view of a part of a snow sweeper according to another embodiment. Figures 38 to 41As shown, the snow sweeper of this embodiment is Fig.23 The snow blowers of the embodiments shown in the drawings have basically the same structure. Figure 23 to Figure 27 All the solutions of the snow sweeper that are applicable to the present embodiment can be applied to the present embodiment. Fig.23 The different parts of the embodiments shown in the figure are shown in the figure, and other identical parts are not described in detail. Figures 38 to 41 As shown, the power device 560f includes a first motor 561f, a second motor 565f and a third motor 562f. The first motor 561f is used to drive the first-stage snow removal component 551f, the second motor 565f is used to drive the second-stage snow removal component 552f, and the third motor 562f is used to drive the third-stage snow removal component 553f. The three motors included in the power device 560f drive the first-stage snow removal component 551f, the second-stage snow removal component 552f and the third-stage snow removal component 553f respectively, so that the control device can control the three motors respectively, so that the snow removal device can remove snow more efficiently. In this embodiment, the first mounting shaft 5512f extends in the left-right direction, the first motor 561f is arranged on the inner side of the snow collecting cover 531f, and drives the first mounting shaft 5512f to rotate through the first reduction assembly 563f, and the first reduction assembly 563f is arranged on the outer side of the snow collecting cover 531f, such as the first reduction assembly 563f can be arranged on the outer surface of the left wall or the right wall of the snow collecting cover 531f. The first reduction assembly 563f can be a belt transmission assembly. The second mounting shaft 5522f extends in the front-back direction, the second snow removal blade 5521f is arranged on the rear side of the first snow removal blade 5511f, the second motor 565f drives the second mounting shaft 5522f to rotate, the second motor 565f drives the second mounting shaft 5522f to rotate through the second reduction assembly, and the second motor 565f is arranged on the upper side of the top wall of the snow collecting cover 531f. The third mounting shaft 5532f extends in the front-to-back direction, and the third motor 562f is arranged at the rear side of the third-stage snow removal assembly 553f to drive the third mounting shaft 5532f to rotate, and the third motor 562f can drive the third mounting shaft 5532f to rotate through the third reduction assembly. In other embodiments, the third motor 562f can also directly drive the third mounting shaft 5532f to rotate.

[0206] like Fig.42 The figure is a three-dimensional view of a part of a snow sweeper according to another embodiment. Figure 42 to Figure 43 As shown, the snow sweeper of this embodiment is Fig.38 The snow blowers of the embodiments shown in the drawings have basically the same structure. Figures 38 to 41 All the solutions of the snow sweeper that are applicable to the present embodiment can be applied to the present embodiment. Fig.23The different parts of the embodiment shown in the figure, and other identical parts are not repeated. In this embodiment, the first installation shaft 5512g extends in the front-to-back direction, and the first motor 561g driving the first installation shaft 5512g to rotate is arranged on the outer side of the top wall of the snow collecting cover. The second installation shaft 5522g extends in the left-right direction, and the second motor 565g is arranged on the inner side of the snow collecting cover. The second reduction assembly 564g for power transmission between the second motor 565g and the second installation shaft 5522g is arranged on the outer surface of the left side wall or the right side wall of the snow collecting cover.

[0207] Fig.44 The figure is a three-dimensional view of a part of a snow sweeper according to another embodiment. Figure 44 to Figure 45 As shown, the snow sweeper of this embodiment is Fig.42 The snow blowers of the illustrated embodiments have substantially the same structure. Figure 42 to Figure 43 All the solutions of the snow sweeper that are applicable to the present embodiment can be applied to the present embodiment. Fig.42 The different parts of the embodiment shown, other identical parts are not repeated. In this embodiment, the first-stage snow removal assembly 551h includes two first snow removal blades 5511h, one of which is disposed on the front side of the second mounting shaft 5522h, and the other first snow removal blade 5511h is disposed on the rear side of the second mounting shaft 5522h.

[0208] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A snow sweeper, comprising: A snow collecting device, comprising a snow collecting element for collecting snow and a first motor for driving the snow collecting element to rotate; A main housing, used to support the snow collecting device; A walking assembly drives the snowplow to walk on the ground; A power supply device, used for providing power to the first motor; It is characterized in that the snow collecting element rotates around the rotation axis, and a coordinate system is established with the point on the rotation axis of the snow collecting element as the origin, the front-to-back direction as the X-axis, the up-down direction as the Y-axis, the forward direction as the positive direction of the X-axis, and the upward direction as the positive direction of the Y-axis. The projection of the first motor in the plane where the coordinate system is located is located in an angle area with the origin as the vertex and located in the plane where the coordinate system is located. The first side of the angle area is located in the first quadrant of the coordinate system and the angle between it and the positive direction of the Y-axis is less than or equal to 60 degrees. The second side of the angle area is located in the second quadrant of the coordinate system and the angle between it and the positive direction of the Y-axis is less than or equal to 80 degrees.

2. The snow sweeper according to claim 1, characterized in that: The projection of the first motor in the plane where the coordinate system is located is located in a circular area with the origin as the center and located in the plane where the coordinate system is located, and the radius of the circular area is less than or equal to 0.7m.

3. The snow sweeper according to claim 1, characterized in that: The first side of the angle area is located in the first quadrant of the coordinate system and the angle between it and the positive direction of the Y axis is less than or equal to 30 degrees, and the second side of the angle area is located in the second quadrant of the coordinate system and the angle between it and the positive direction of the Y axis is less than or equal to 60 degrees.

4. The snow sweeper according to claim 1, characterized in that: The first motor is arranged on the upper side of the snow collecting element.

5. The snow sweeper according to claim 1, characterized in that: The first motor is arranged on the upper side of the rotation axis of the snow collecting element.

6. The snow sweeper according to claim 1, characterized in that: The main shell includes: a snow collecting cover for installing the snow collecting element, the snow collecting cover includes a top wall and two side walls respectively arranged on both sides of the top wall, and the projection of the first motor in a plane perpendicular to the front-to-back direction is located between the projections of the two side walls in a plane perpendicular to the front-to-back direction.

7. The snow sweeper according to claim 1, characterized in that: The main housing includes: a snow collecting cover for installing the snow collecting element, the snow collecting cover includes a top wall and two side walls respectively arranged on both sides of the top wall, and the first motor is at least partially arranged on the upper side of the top wall.

8. The snow sweeper according to claim 7, characterized in that: The main housing further includes a first motor housing, the first motor housing is formed with a first accommodation space for accommodating the first motor, and the first motor housing is mounted to the upper side of the top wall.

9. The snow sweeper according to claim 1, characterized in that: Also includes: The snow throwing device comprises a snow throwing element for throwing the snow collected by the snow collecting device, a snow throwing cylinder for guiding the throwing direction of the snow, and a second motor for driving the snow throwing element to rotate; Wherein, in the front-to-rear direction, the first motor is arranged on the front side of the second motor.

10. A snow sweeper, characterized in that: include: A snow collecting device, comprising a snow collecting element for collecting snow and a first motor for driving the snow collecting element to rotate; The snow throwing device comprises a snow throwing element for throwing the snow collected by the snow collecting device, a snow throwing cylinder for guiding the throwing direction of the snow, and a second motor for driving the snow throwing element to rotate; A main housing, used for supporting the snow collecting device and the snow throwing device; A walking assembly drives the snowplow to walk on the ground; A power supply device, used for providing power to the first motor and the second motor; Wherein, the main shell includes: a snow collecting cover for installing the snow collecting element, the snow collecting cover includes a top wall and two side walls respectively arranged on both sides of the top wall, and the first motor is at least partially arranged on the upper side of the top wall.

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