CN211702520U - Electric tool and circuit board - Google Patents

Abstract

The utility model discloses an electric tool and circuit board, electric tool, include: a circuit board; the circuit board includes: a substrate having a first surface and a second surface; a printed wiring layer disposed on the first surface; an insulating layer covering the printed wiring layer, the first conductive part, the second conductive part, the third conductive part and the fourth conductive part being exposed on the printed wiring layer; a first type of electronic component; the second type of electronic component comprises a third connecting part and a fourth connecting part, wherein the third connecting part is electrically connected with the third conductive part, and the fourth connecting part is electrically connected with the fourth conductive part; a waterproof layer covering the insulating layer; after the waterproof layer covers the second type of electronic component, the paths of the third connecting part and the fourth connecting part which are connected through the waterproof layer are mutually insulated; the second type of electronic component further includes: and the current access port can be electrically connected with an external port after being covered by the waterproof layer so as to introduce current to the circuit board. The electric tool has high reliability and long service life.

Description

Electric tool and circuit board

Technical Field

The utility model relates to an electric tool, concretely relates to electric tool and circuit board.

Background

A lawn mower, as an electric tool, is widely used in the fields of trimming lawns, vegetation, and the like. The existing lawn mower usually works outdoors, the humidity of outdoor air is low, water is also contained on a lawn, and even sometimes, the existing lawn mower needs to work in rainy days, so that air or water vapor on the lawn can enter the lawn mower, and the reliability of a circuit board in the lawn mower can be affected.

SUMMERY OF THE UTILITY MODEL

For solving the deficiencies of the prior art, an object of the utility model is to provide an electric tool and circuit board with high reliability and long service life.

In order to achieve the above object, the utility model adopts the following technical scheme:

a power tool, comprising: the power output part is used for outputting power to realize the function of the electric tool; a main body supporting a power take-off; a circuit board mounted to the main body; wherein, the circuit board includes: a substrate having a first surface and a second surface; a printed wiring layer disposed at least on the first surface; an insulating layer covering the upper side of the printed circuit layer, wherein the first conductive part, the second conductive part, the third conductive part and the fourth conductive part are exposed on the printed circuit layer when the insulating layer covers the printed circuit layer; the first type of electronic component comprises a first connecting part and a second connecting part, wherein the first connecting part is electrically connected with the first conductive part, and the second connecting part is electrically connected with the second conductive part; the second type of electronic component comprises a third connecting part and a fourth connecting part, wherein the third connecting part is electrically connected with the third conductive part, and the fourth connecting part is electrically connected with the fourth conductive part; the waterproof layer covers at least part of the whole body formed by the insulating layer, the first type of electronic components and the second type of electronic components; after the waterproof layer covers the first type of electronic components, the first connecting part and the second connecting part are mutually insulated in the direction of a connecting path through the waterproof layer; after the waterproof layer covers the second type of electronic component, the paths of the third connecting part and the fourth connecting part which are connected through the waterproof layer are mutually insulated; the second type of electronic component further includes: and the current access port can be electrically connected with an external port after being covered by the waterproof layer so as to introduce current to the circuit board.

Furthermore, the waterproof layer covers the whole formed by the insulating layer, the first type of electronic components and the second type of electronic components in a vapor deposition mode.

Furthermore, the second type of electronic component is a socket.

Further, the printed circuit layers on the first surface and the second surface are both covered by a waterproof layer.

Further, the thickness of the waterproof layer is greater than or equal to 100 nanometers and less than or equal to 600 nanometers.

Further, the resistance of the waterproof layer in the thickness direction is 100 milliohms or less.

Further, the water repellent layer includes a first material in the form of particles having a size of 100 nm or less.

Further, the substrate is a plastic substrate or an aluminum substrate.

Further, the first type of electronic component is a patch or a plug fixedly connected to the substrate.

A circuit board, comprising: a substrate having a first surface and a second surface; a printed wiring layer disposed on the first surface; the insulating layer covers the upper side of the printed circuit layer, and the first conductive part and the second conductive part are exposed on the printed circuit layer when the insulating layer covers the printed circuit layer; the first type of electronic component comprises a first connecting part and a second connecting part, wherein the first connecting part is electrically connected with the first conductive part, and the second connecting part is electrically connected with the second conductive part; the second type of electronic component comprises a third connecting part and a fourth connecting part, wherein the third connecting part is electrically connected with the third conductive part, and the fourth connecting part is electrically connected with the fourth conductive part; the waterproof layer covers at least part of the whole body formed by the insulating layer, the first type of electronic components and the second type of electronic components; after the waterproof layer covers the first type of electronic components, the first connecting part and the second connecting part are mutually insulated in the direction of a connecting path through the waterproof layer; after the waterproof layer covers the second type of electronic component, the paths of the third connecting part and the fourth connecting part which are connected through the waterproof layer are mutually insulated; the second type of electronic component further includes: and the current access port can be electrically connected with an external port after being covered by the waterproof layer so as to introduce current to the circuit board.

The utility model discloses an useful part lies in: the utility model discloses a be provided with even waterproof layer on the circuit board among the electric tool to make waterproof, dustproof effectual of circuit board.

Drawings

FIG. 1 is a perspective view of a riding lawn mower of one embodiment of the present invention;

FIG. 2 is a plan view of the riding lawn mower of FIG. 1;

FIG. 3 is a bottom view of the riding lawn mower of FIG. 1;

FIG. 4 is a perspective view of the riding mower of FIG. 1 with the grass collection system removed;

FIG. 5 is a perspective view of a frame and cutting system in the riding mower of FIG. 1;

FIG. 6 is a perspective view of the cutting system in the riding lawn mower of FIG. 1;

FIG. 7 is a plan view of the connection line system of FIG. 6 with the threaded sleeve in a second position;

FIG. 8 is a plan view of the connection line system of FIG. 6 with the threaded sleeve in a first position;

FIG. 9 is a perspective view of the connection cord system of FIG. 6 with the first and second terminals separated;

FIG. 10 is an exploded view of the terminal assembly of FIG. 7;

FIG. 11 is a plan view of the right housing assembly of FIG. 1;

FIG. 12 is a perspective view of the right housing assembly of FIG. 1;

FIG. 13 is a plan view of the display screen and operating buttons of FIG. 12;

FIG. 14 is a cross-sectional view of the structure of FIG. 13 taken along line C-C;

FIG. 15 is a plan view of the display interface of FIG. 13;

FIG. 16 is a perspective view of the first storage compartment of FIG. 12;

fig. 17 is a perspective view of the front housing assembly and front lighting assembly of fig. 1;

FIG. 18 is another perspective view of the front housing assembly and front lighting assembly of FIG. 1;

FIG. 19 is a perspective view of the structure shown in FIG. 18 with the front housing assembly removed;

FIG. 20 is a plan view of the structure of FIG. 18 with the circuit board cartridge removed;

FIG. 21 is a perspective view of the arrangement shown in FIG. 18 exposing the first lamp and the second lamp;

FIG. 22 is a perspective view of the structure shown in FIG. 21 with the first light guide plate and the second light guide plate removed;

FIG. 23 is a circuit connection diagram of the circuit board box and the second motor;

FIG. 24 is a perspective view of the left housing assembly and power management module of FIG. 1;

fig. 25 is a plan view of the charging assembly of fig. 24;

FIG. 26 is a perspective view of the structure shown in FIG. 24 with the left housing assembly removed;

FIG. 27 is a plan view of one circuit board in the riding lawn mower of FIG. 1;

fig. 28 is a cross-sectional view of the circuit board of fig. 27;

fig. 29 is a cross-sectional view of another circuit board suitable for use with the riding lawn mower of fig. 1.

Detailed Description

The mower shown in fig. 1 is a riding mower 100, and the riding mower 100 can be operated by a user riding thereon to trim lawn and other vegetation.

In this specification, the front, rear, left, right, up and down directions are described as the directions shown in fig. 1.

As shown in fig. 1 to 4, the riding mower 100 includes: cutting system 10, carriage 91, seat 92, enclosure system 20, walking system 93, power supply device 94, grass collecting system 30, and lighting system 40. The frame 91 and the housing system 20 form a main body 100a of the riding mower 100, the main body 100a is used for installing the cutting system 10, the seat 92, the power supply device 93, the grass collecting system 30 and the lighting system 40, and the walking system 93 is used for supporting the main body 100 a. In the present embodiment, the riding mower 100 uses the power supply device 94 to provide power, so that the riding mower 100 can be used as an electric tool, and the electric riding mower 100 is more environment-friendly and energy-saving compared to the fuel-based riding mower 100. Wherein the cutting system 10 is used for outputting power to realize the function of the riding mower 100, the cutting system 10 is used as a power output part, the main body 100a supports the power output part, and the cutting system 10 comprises: a chassis 11, a mowing element 12 and a first motor 13. The mowing element 12 is configured to cut vegetation when rotating at a high speed, for example, the mowing element 12 is a blade configured to cut grass on a lawn, the chassis 11 surrounds a mowing space 121 configured to accommodate at least a portion of the mowing element 12, and the first motor 13 is configured to drive the mowing element 12 to rotate. The frame 91 is used for mounting the cutting system 10, the frame 91 extends substantially in the front-rear direction, the cutting system 10, the housing system 20, the traveling system 93, the power supply device 94, the grass collecting device, and the lighting system 40 are mounted to the frame 91, and the frame 91 is a main body portion for supporting the entire riding mower 100. A seat 92 is mounted to the frame 91, the seat 92 being for seating a user, the frame 91 carrying the seat 92. The enclosure system 20 is used to carry some other structure. The traveling system 93 is for supporting the frame 91 so that the riding mower 100 can travel on the ground, the traveling system 93 including: front road wheels 931 and rear road wheels 932, the traveling system 93 further includes a second motor 933 for driving the rotation of the front road wheels 931 or the rear road wheels 932, the number of the front road wheels 931 is 2, and the number of the rear road wheels 932 is also 2, although not limited thereto. The power supply device 94 is used for supplying power to the cutting system 10, the traveling system 93, the lighting system 40, and the like, and the power supply device 94 includes at least one battery pack for storing electric power, which is a lithium battery pack. The grass collecting system 30 is used for collecting grass clippings cut by the cutting system 10. The illumination system 40 is used for illumination. The first motor 13, the second motor 933, and the lighting system 40 all function as electrical devices included in the riding mower 100, which convert electrical energy into other forms of energy.

As shown in fig. 1 and 3, the cutting system 10 is disposed on the lower side of the frame 91, so that the center of gravity of the entire riding mower 100 can be effectively lowered. The number of the mowing elements 12 is 2, the number of the first motors 13 is 2, and the two first motors 13 drive the mowing elements 12, respectively. Mowing element 12 is located within mowing space 121 surrounded by chassis 11. Mowing space 121 is open downward so that mowing element 12 can perform a cutting operation on vegetation located below mowing space 121.

As shown in fig. 1 and 5, the riding mower 100 further includes: a control module 95. The control module 95 can be disposed under the seat 92, which can save space and make the whole structure more compact. The control module 95 is used to control the electronic devices in each system. For the cutting system 10, the control module 95 can control the operation of the first motor 13. As shown in fig. 5 and 6, the cutting system 10 further includes: a wiring system 50 for connecting the control module 95 and the first motor 13.

As shown in fig. 7 to 10, the connecting line system 50 includes: a wire assembly 51 and a terminal assembly 52, the wire assembly 51 including a first connection wire 511 and a second connection wire 512, the terminal assembly 52 being disposed between the first connection wire 511 and the second connection wire 512 to connect the first connection wire 511 and the second connection wire 512. The first connection line 511 is connected to the first motor 13, and the second connection line 512 is connected to the control module 95. The terminal assembly 52 includes: the first terminal 521 is fixedly connected to the first connection line 511, and the second terminal 522 is fixedly connected to the second connection line 512. The first terminal 521 and the second terminal 522 are detachably connected, the first terminal 521 can be inserted into the second terminal 522, and the first terminal 521 can be pulled out from the second terminal 522. Thus, when the cutting system 10 is installed, the cutting system 10 can be used as a module, the cutting system 10 is assembled, then the cutting system 10 is installed on the frame 91, and finally the first terminal 521 and the second terminal 522 are connected to electrically connect the control module 95 and the first motor 13. Alternatively, when maintenance of the first motor 13 is required, the first terminal 521 and the second terminal 522 may be separated from each other, thereby facilitating the maintenance.

When the first terminal 521 and the second terminal 522 are connected, the length L1 of the entire first terminal 521 and the second terminal 522 is 50 mm or more and 85 mm or less. This can effectively reduce the size of the terminal assembly 52, thereby reducing the production cost and improving the stability of the connection of the terminal assembly 52.

More specifically, the length L1 of the entire first terminal 521 and the second terminal 522 is 60 mm or more and 75 mm or less. This further reduces the size of the terminal assembly 52, thereby reducing the production cost and improving the stability of the connection of the terminal assembly 52.

The first terminal 521 includes: the first terminal housing 522a, the first electrode 521b, the first connection line 511 includes: a first conductive core 511a and a first insulating cover 511 b. The first terminal outer case 522a is formed around the first accommodation chamber 521c, and the first electrode 521b is disposed in the first accommodation chamber 521 c. The first conductive core 511a is connected to the first electrode 521b to transmit power, and the first insulating cover 511b is coated on the first conductive core 511 a. The first insulating sleeve 511b is fixedly connected to the first terminal outer sleeve 522a, and more specifically, the first insulating sleeve 511b is integrally injection-molded with the first terminal outer sleeve 522a, so that the first terminal 521 and the first insulating sleeve 511b can be connected more stably through a very simple structure, thereby preventing the first terminal 521 and the first insulating sleeve 511b from being separated due to long-term vibration during operation of the riding mower 100, and reducing the risk of electric leakage. Likewise, the second terminal 522 includes: the second terminal outer casing 522a, the second electrode 522b, the second connection line 512 includes: a second conductive core 512a and a second insulating sleeve 512 b. The second terminal outer housing 522a is formed around a second accommodation chamber 522c, and the second electrode 522b is disposed in the second accommodation chamber 522 c. The second conductive core 512a is connected to the second electrode 522b for transmitting power, and the second insulating sheath 512b covers the second conductive core 512 a. The second insulating sleeve 512b is fixedly connected with the second terminal outer sleeve 522a, and more specifically, the second insulating sleeve 512b and the second terminal outer sleeve 522a are integrally molded, so that the second terminal 522 and the second insulating sleeve 512b can be connected more stably through a very simple structure, the second terminal 522 and the second insulating sleeve 512b are prevented from being separated due to long-term vibration in the operation process of the riding-type mower 100, and the risk of electric leakage can be reduced.

The first terminal 521 further includes: a threaded sleeve 521d and a stop 521 e. An internal thread is disposed on an inner wall of the threaded sleeve 521d, the threaded sleeve 521d is movably connected to the limiting member 521e along the direction of the center line 1a, and the limiting member 521e is used for limiting the threaded sleeve 521d to be separated from the limiting member 521e along the direction of the center line 1 a. The second terminal 522 includes: and an external thread member 522d, an outer wall of which is formed with an external thread to be engaged with the internal thread. The threaded sleeve 521d is slidable between a first position and a second position with respect to the retaining member 521 e. When the threaded sleeve 521d is located at the first position, the limiting member 521e protrudes from the threaded sleeve 521d along the direction of the central line 1a, or the limiting member 521e is aligned with the threaded sleeve 521d along the direction of the central line 1 a. It is understood that the first position is the position where the threaded sleeve 521d is moved along the center line 1a to the position closest to the first insulating sleeve 511b, and in fact, the threaded sleeve 521d is movably disposed on the position-limiting member 521e, and the threaded sleeve 521d can also be moved to the position protruding out of the position-limiting member 521 e. When the screw member is located at the second position, the screw member protrudes from the limiting member 521e along the direction of the central line 1a, and moves to the external screw member 522d along the direction of the central line 1a, and then the screw sleeve 521d is screwed, and the screw sleeve 521d is sleeved on the external screw portion, thereby realizing the fixed connection of the first terminal 521 and the second terminal 522. The first terminal 521 and the second terminal 522 are simple in structure, a user only needs to insert the second terminal 522 into the first terminal 521 and then screw the thread sleeve 521d onto the external thread member 522d, and then the fixed connection of the first terminal 521 and the second terminal 522 can be realized, so that the user is convenient to operate, the problem of wrong part screwing is avoided, the thread sleeve 521d moves onto the external thread member 522d from the first terminal 521, the size L1 of the whole body formed by the first terminal 521 and the second terminal 522 is small, and the production cost is reduced.

A rubber ring 522f is further provided on at least one of the first terminal 521 and the second terminal 522. When the first terminal 521 and the second terminal 522 are connected, the rubber ring 522f contacts the first terminal 521 and the second terminal 522, respectively, so that a part of a path leading to the first electrode 521b and the second electrode 522b is sealed at the connection of the first terminal 521 and the second terminal 522, thereby preventing moisture, dust, grass debris, and the like from entering the inside of the terminal assembly 52, and further improving the reliability of the terminal assembly 52. Specifically, the male screw 522d has an annular groove 522e formed therein, and the rubber ring 522f is an O-ring fitted into the annular groove 522 e. When the first terminal 521 and the second terminal 522 are connected, the threaded sleeve 521d rotates to the external thread, the limiting member 521e is inserted into the outer wall of the external screw member 522d, and the rubber ring 522f is respectively in contact with the outer wall of the external screw member 522d and the inner wall of the limiting member 521e, so that a part of the path leading to the first electrode 521b is effectively sealed, and a part of the path leading to the second electrode 522b is also sealed, thereby preventing water vapor, dust, grass debris and the like from entering the inside of the terminal assembly 52 and contacting the first electrode 521b and the second electrode 522 b.

Of course, it is understood that the structure of the first terminal 521 and the structure of the second terminal 522 may be interchanged, such that the first terminal 521 forms an external screw member 522d, and the second terminal 522 includes a limiting member 521e and a threaded sleeve 521 d.

In this embodiment, the connection line system 50 may also be used to connect the second motor 933 and the control module 95, so that the power connection between the second motor 933 and the control module 95 can be realized by the simple connection line system 50 as well. When the riding mower 100 is assembled, the second motor 933 and the control module 95 can also be mounted to the frame 91 as different modules, and then the first terminal 521 and the second terminal 522 in the connecting wire system 50 are connected to realize the control of the second motor 933 by the control module 95, so as to facilitate the operation of the user.

The frame 91 includes: the longitudinal beams and the cross beams, specifically, the frame 91 includes two longitudinal beams, a first longitudinal beam 911 and a second longitudinal beam 912, respectively, and the frame 91 further includes two cross beams, a first cross beam 913 and a second cross beam 914, respectively. The first longitudinal beam 911 is disposed on the left side of the seat 92, and the second longitudinal beam 912 is disposed on the right side of the seat 92. The first longitudinal beam 911 extends along a first straight line 1b, the second longitudinal beam 912 extends along a second straight line 1c, and the first straight line 1b and the second straight line 1c are both defined as a longitudinal straight line 1d, and the longitudinal straight line 1d extends in the front-rear direction. In the present embodiment, the extending directions of the first longitudinal beam 911 and the second longitudinal beam 912 are parallel to each other. A first cross member 913 is provided at the front side of the seat 92, the first cross member 913 being located substantially at the front end of the riding mower 100, and thus the first cross member 913 also serves as a front bumper for protecting the front end of the riding mower 100 from damage. The second cross member 914 is disposed at the rear side of the seat 92, and the second cross member 914 is located substantially at the rear end of the riding mower 100, so that the second cross member 914 also serves as a rear bumper that protects the rear end of the riding mower 100 from damage. At least a part of the first beam 913 and the second beam 914 extends along a lateral straight line 1e, and the lateral straight line 1e extends in the left-right direction. In the present embodiment, the extending directions of the first beam 913 and the second beam 914 are parallel to each other, and the transverse straight line 1e and the longitudinal straight line 1d are perpendicular to each other.

The enclosure system 20 includes: a left housing assembly 21 and a right housing assembly 22, the left housing assembly 21 being disposed on the left side of the seat 92, the right housing assembly 22 being disposed on the right side of the seat 92. The left shell assembly 21 is attached to and connected to a first longitudinal beam 911 on the left side of the seat 92, and the right shell assembly 22 is attached to and connected to a second longitudinal beam 912 on the right side of the seat 92.

As shown in fig. 11, the right housing member 22 further has mounted thereon: a display 221, a switch assembly 222, and a plurality of operating buttons 223. The right housing component 22 is also provided with a first storage box 224 for storing objects. The left housing assembly 21 is provided with a second storage box 211 for storing objects. Thus, the storage boxes are arranged on the two sides of the seat 92, so that the left-handed user and the right-handed user can use the storage boxes conveniently, the storage space is increased, and the work of the user is facilitated. The display screen 221 and the switch assembly 222 are arranged on the right shell assembly 22, so that a user can conveniently see the display state on the display screen 221 on the right side while operating the switch assembly 222, and the display screen 221 and the switch assembly 222 are arranged on the right side of the seat 92, so that the seat is more in accordance with the ergonomic design.

Specifically, the display screen 221 includes a display interface 2211 for displaying the operating state of the riding lawn mower 100, and the display interface 2211 is understood as a display area directly viewed by the user. The switch assembly 222 is used for operation by a user, the switch assembly 222 has a plurality of operation modes, and when the user operates the switch assembly 222 in the first operation mode, the display interface 2211 on the display screen 221 can be woken up so that the display screen 221 enters a power-on startup interface from a power-off black screen interface. When the display interface 2211 enters the power-on interface, the operating state of the riding mower 100 and various other state information can be displayed on the display interface 2211, and at this time, the user can make the riding mower 100 enter the walking state or the mowing state and the like by operating other operating elements or buttons.

In the present embodiment, a plane passing through the first straight line 1b and the second straight line 1c is defined as a reference plane 1g, and the reference plane 1g is parallel to the horizontal plane when the riding mower 100 travels on the ground parallel to the horizontal plane. As shown in fig. 11 to 15, the display interface 2211 extends in an inclined plane 1h obliquely intersecting the reference plane 1 g. The inclined plane 1h extended from the display screen 221 and the reference plane 1g are obliquely intersected to form an included angle greater than or equal to 2 degrees and less than or equal to 30 degrees, so that the display interface 2211 is obliquely extended upwards, and a user can conveniently observe the state information on the display screen 221 when sitting on the seat 92 without lowering the head of the user to observe the state information.

Different status information can be displayed on the display interface 2211 according to needs. The display interface 2211 may display the speed of the traveling system 93, the speed of the rotation speed of the mowing element 12, the magnitude of the energy-efficient state of the riding mower 100, information on the remaining capacity of the power supply device 94, warning information, failure information, remaining operation time of the power supply device 94, and the like. In this embodiment, a mode button 225 is further disposed around the display interface 2211, and the mode button 225 is operated by a user to enable the riding lawn mower 100 to enter different operation modes, such as a comfort mode, a normal mode and an extreme mode, so that the user can select different operation modes according to personal preferences, thereby improving the user experience of the riding lawn mower 100. Similarly, information regarding different operating modes of the riding mower 100 may be displayed on the display 2211.

The status information on the display interface 2211 can be conveniently viewed by the user, with the size of the display interface 2211 being understood to be the display area exposed to be viewed by the user. In this embodiment, the display interface 2211 is substantially rectangular, a dimension L2 of the display interface 2211 in the length direction is greater than or equal to 100 mm and less than or equal to 150 mm, and a dimension L3 of the display interface 2211 in the width direction is greater than or equal to 60 mm and less than or equal to 90 mm, so that the size of the display interface 2211 is large enough to display more status information that a user wants to know. The area of the display interface 2211 is equal to or greater than 70 square centimeters and equal to or less than 110 square centimeters.

As described above, when the switch assembly 222 is operated by the user in the first operation mode, the display interface 2211 enters the power-on interface, and the display interface 2211 displays a plurality of status messages, and the display interface 2211 not only can display the remaining power information of the power supply device 94, but also can display one status message of the riding mower 100, and the riding mower 100 is started to enter the pre-operation state of walking or mowing. When the switch assembly 222 is operated by the user in the second operation manner, the display interface 2211 enters a lighting interface, and the display interface 2211 only displays the remaining power information of the power supply device 94, which is not limited to this, so that the user can know the remaining power information of the power supply device 94 only through simple operation to determine whether to perform charging. Without requiring the user to activate the riding mower 100 to know the remaining power information of the power supply device 94, thereby facilitating the user's operation.

The switch assembly 222 includes: a key 2221, a power key 2222 and an activation key 2223, the activation key 2223 being used to activate the first motor 13 for mowing. The right housing component 22 further has a key hole 2224 for inserting the key 2221, and when the key 2221 is inserted into the key hole 2224, the switch located in the key hole 2224 can be activated, that is, when the key 2221 is inserted into the key hole 2224, the switch located in the key hole 2224 can be activated without rotating the key 2221, so that the operation of the user is facilitated. Also connected at the key hole 2224 is a safety cover 2225, the safety cover 2225 being movably connected to the key hole 2224, when the key 2221 is not inserted into the key hole 2224, the safety cover 2225 closes the key hole 2224 to prevent moisture, dust, etc. from entering the key hole 2224, and when the key 2221 is inserted into the key hole 2224, the safety cover is pressed downward to open the key hole 2224. The safety cover 2225 is rotatably coupled to the right housing member 22 by a torsion spring.

The first storage box 224 on the right side of the seat 92 is a cell phone box for storing a cell phone. As shown in fig. 16, the first storage box 224 includes: a case 2241 and a cover 2242, the case 2241 surrounds a receiving space 2244 formed for storing a mobile phone, and the cover 2242 is rotatably coupled to the case 2241. The first storage box 224 also includes a biasing element 2243 for biasing the box cover 2242 towards the position where the box body 2241 is closed. When a mobile phone is inserted into the housing 2241, the mobile phone presses the cover 2242 downward to open the housing 2241. The biasing element 2243 is embodied as a torsion spring coupled between the box body 2241 and the box cover 2242. Thus, when the mobile phone is not inserted, the box cover 2242 seals the accommodating space 2244, so that dust and grass can be effectively prevented from entering the first storage box 224. An elastic member 2245 for supporting the mobile phone is further disposed in the box body 2241, and when the mobile phone is inserted into the box body 2241, the elastic member 2245 presses against the mobile phone to stably support the mobile phone in the box body 2241, thereby preventing the damage of the mobile phone due to vibration during walking of the riding mower 100. Elastic piece 2245 specifically is convex shell fragment on the lateral wall of box body 2241, shell fragment and box body 2241 integrated into one piece. The elastic sheet extends from one side wall of the box body 2241 to the other side wall, and the mobile phone is supported between the elastic sheet and the other side wall, so that the mobile phone is prevented from shaking.

As shown in fig. 4, 5, and 17, the riding mower 100 further includes a power amount display device 96 for displaying the remaining power amount of the power supply device 94. That is, in addition to displaying the remaining power of the power supply device 94 on the display interface 2211, the riding mower 100 further includes a power display device 96 that displays the remaining power. Riding mower 100 further comprises a foot rest 97 disposed on the front side of seat 92, foot rest 97 for supporting the feet of the user. The foot rest 97 is connected to a cross beam or a longitudinal beam, and the foot rest 97 includes: a bottom plate 971 and a front cover 972, wherein the bottom plate 971 is connected to the first and second longitudinal beams 911 and 912, the front cover 972 is connected to the first cross beam 913, and the front cover 972 may be part of the front housing assembly 23 in the cabinet system 20.

The power display device 96 is installed to the step table 97 and located at the front side of the seat 92, so that when a user sits on the seat 92, the user can conveniently observe the power display device 96 located at the front side, thereby conveniently knowing the remaining power of the power device 94, and avoiding the situation that the user needs to turn around to see the display screen 221 at the right side to know the remaining power information of the power device 94.

As shown in fig. 18 to 20, the electric quantity display device 96 includes: a power display lamp 961. The power display device 96 is disposed between the two front traveling wheels 931, the power display lamp 961 is disposed between the first longitudinal beam 911 and the second longitudinal beam 912, and the distance from the power display lamp 961 to the first longitudinal beam 911 and the distance from the power display lamp 961 to the second longitudinal beam 912 are substantially the same, so that the power display lamp 961 is positioned directly in front of the seat 92, thereby facilitating the observation by the user.

The bottom plate 971 is formed with a bottom plane 971a for supporting the user's foot, the bottom plane 971a extending in a first plane, which is parallel to the above-mentioned reference plane 1g in this embodiment. The front cover 972 is formed with a front plane 972a for supporting the user's foot obliquely, the front plane 972a extends in a second plane, and the second plane obliquely intersects with the first plane to form an obtuse angle opened toward the user, the obtuse angle being 120 degrees or more and 150 degrees or less, so that the user's foot can be obliquely supported on the front cover 972, thereby improving the comfort of the user and reducing the fatigue caused by the long-term sitting of the user. The power display device 96 is mounted to the front cover 972, which facilitates, on the one hand, the provision of a power display circuit board 962 for controlling the power display lamp 961 under the front cover 972, and, on the other hand, the user's observation of the display status of the power display device 96.

Also mounted to the front cover 972 is a front lighting assembly 41, the front lighting assembly 41 being configured to emit light toward a front area of the riding lawn mower 100. More specifically, the power display lamp 961 emits light toward the seat 92, so that when a user sits on the seat 92, the user's eyes fall into the light emitting area of the power display lamp 961, thereby facilitating the user's view of the power display device 96. In the front-rear direction, the distance between the power display lamp 961 and the seat 92 is greater than or equal to 300 mm and less than or equal to 1000 mm, so that the power display lamp 961 is prevented from being too close to the seat 92 so that the user needs to lower his head to observe the display state of the power display device 96, and the power display lamp 961 is prevented from being too far from the seat 92 so that the user cannot clearly observe the display state of the power display device 96.

The riding lawn mower 100 further includes: a brake assembly 98, the brake assembly 98 including a pedal 981 for a user to step on to activate braking or parking of the riding mower 100, a power display lamp 961 being provided on a front side of the pedal 981 to make a distance between the power display lamp 961 and the seat 92 more reasonable.

The illumination system 40 includes: in the front lighting assembly 41 described above, the front lighting assembly 41 is disposed on the front side of the seat 92.

As shown in fig. 17 to 22, the front lighting assembly 41 includes: a first illumination lamp 411, a second illumination lamp 412, a first circuit board 413 and a second circuit board 414, the first circuit board 413 supporting the first illumination lamp 411, the second circuit board 414 supporting the second illumination lamp 412. The front housing assembly 23 further includes a mounting bracket 231 for mounting the front lighting assembly 41, and a front cover 972 covers an upper side of the mounting bracket 231. The first illumination lamp 411 and the first circuit board 413 are disposed on the left side of the front case assembly 23, and the second illumination lamp 412 and the second circuit board 414 are disposed on the right side of the front case assembly 23. The first illumination lamp 411 and the second illumination lamp 412 emit light toward the front of the riding lawn mower 100, thereby illuminating an area in front of the riding lawn mower 100. The front lighting assembly 41 further comprises: a control circuit board 415, the control circuit board 415 being electrically connected to the first circuit board 413 to control the first illumination lamp 411, the control circuit board 415 also being electrically connected to the second circuit board 414 to control the second illumination lamp 412. The control circuit board 415 is disposed between the first illumination lamp 411 and the second illumination lamp 412, the first illumination lamp 411 and the second illumination lamp 412 are disposed at both sides of the front case assembly 23, and the control circuit board 415 is disposed at a middle region of the front case assembly 23, so that the control circuit board 415 is also disposed between the first circuit board 413 and the second circuit board 414, the first circuit board 413 may be connected to the control circuit board 415 through a wire, and the second circuit board 414 is connected to the control circuit board 415 through a wire. The control circuit board 415 is also mounted on the mounting bracket 231 and located on the lower side of the front cover 972, that is, the control circuit board 415 is disposed in a space surrounded by the front cover 972 and the mounting bracket 231. The control circuit board 415 has a first upper surface 4151 and a first lower surface 4152, electronic components are mounted on the first upper surface 4151, and the area of the first upper surface 4151 of the control circuit board 415 is greater than or equal to 60 square centimeters and less than or equal to 130 square centimeters. Like this, thereby control circuit board 415's surface area is enough big can be favorable to dispelling the heat to the electronic components on control circuit board 415, and need not to set up in addition on preceding casing subassembly 23 and be used for carrying out radiating heat dissipation channel to control circuit board 415, and then can effectually prevent that dust, steam etc. from entering into control circuit board 415 on, has improved control circuit board 415's stability and validity. Of course, the surface area of the control circuit board 415 cannot be too large, so that the problem that there is not enough space on the front housing assembly 23 to mount the control circuit board 415 can be avoided, and the structure of the front housing assembly 23 is made simpler and more compact. More specifically, the area of the first upper surface 4151 of the control circuit board 415 is greater than or equal to 80 cm and less than or equal to 120 cm for better control of the front lighting assembly 41.

The first illumination lamp 411 is a first LED lamp mounted on the first circuit board 413, and the light emitting power of the first LED lamp is 1.5W or more. In some embodiments, the light emitting power of the first LED lamp is greater than or equal to 2W, so that the light emitting power of the first illumination lamp 411 is larger, thereby making the brightness of the first illumination lamp 411 brighter. Because the luminous power of the first illuminating lamp 411 is relatively large, the first illuminating lamp 411 can generate a large amount of heat in the light emitting process, and therefore the first circuit board 413 is arranged to be an aluminum substrate, so that the first illuminating lamp 411 can be better cooled. The second illumination lamp 412 is a second LED lamp mounted on the second circuit board 414, and the light emitting power of the second LED lamp is 1.5W or more. In some embodiments, the light emitting power of the second LED lamp is greater than or equal to 2W, so that the light emitting power of the second illumination lamp 412 is larger, thereby making the brightness of the second illumination lamp 412 brighter. Because the light emitting power of the second illuminating lamp 412 is relatively large, the second illuminating lamp 412 generates a large amount of heat in the light emitting process, and therefore the second circuit board 414 is configured as an aluminum substrate, so that the second illuminating lamp 412 can be better cooled.

The front lighting assembly 41 further comprises: a first surface light source assembly including a third illumination lamp 416 and a first light guide plate 417, and a second surface light source assembly including: a fourth illumination lamp 418, and a second light guide plate 419. The third illuminating lamp 416 is mounted on the first circuit board 413, and the first light guide plate 417 is used for guiding the light emitted by the third illuminating lamp 416 to be emitted in a floodlight manner, so that the light emitted by the first surface light source assembly is softer and more uniform. The fourth light 418 is mounted on the second circuit board 414, and the second light guide plate 419 is used for guiding the light emitted by the fourth light 418 to be arranged in a floodlight manner, so that the light emitted by the second surface light source assembly is softer and more uniform.

In this embodiment, the mounting bracket 231 is a plastic member, which facilitates forming a mounting structure for mounting the front lighting assembly 41. The front cover 972 is a metal part, which on the one hand can facilitate heat dissipation from the front lighting assembly 41 and on the other hand can increase the strength of the front housing assembly 23. In the front-rear direction, the front cover 972 also protrudes the mounting bracket 231 forward, that is, the front lighting assembly 41 is recessed relative to the front cover 972, and the strength of the front cover 972 is relatively high, so that the front cover 972 can protect the mounting bracket 231 and the front lighting assembly 41 from being damaged, and the service life of the front lighting assembly 41 is prolonged.

As described above, the charge level display device 96 is also mounted to the front cover 972. A power display lamp 961 is also provided between the first illumination lamp 411 and the second illumination lamp 412, and a power display circuit board 962 is provided near the control circuit board 415 for the convenience of control. In this embodiment, a circuit board box 420 is further disposed in the front housing assembly 23, the circuit board box 420 forms a receiving cavity, and the control circuit board 415 and the power display circuit board 962 are disposed in the circuit board box 420, so that the power display circuit board 962 and the control circuit board 415 can be protected on the one hand, and the control circuit board 415 and the power display circuit board 962 can be mounted on the other hand. The control circuit board 415 is also electrically connected to the power display circuit board 962, so that the control circuit board 415, the power display circuit board 962 and the circuit board case 420 form a movable unit, and the unit can output signals to other electric devices. The electric quantity display electric quantity plate is provided with a second upper surface 9621 and a second lower surface 9622, electronic components are mounted on the second upper surface 9621, and the area of the second upper surface 9621 of the electric quantity display circuit board 962 is larger than or equal to 45 square centimeters and smaller than or equal to 75 square centimeters, so that the surface area of the electric quantity display circuit board 962 is large enough, and heat dissipation of the electric quantity display electric quantity plate is facilitated. Thus, the power display device 96 and the front lighting assembly 41 can be controlled by the power display circuit board 962 and the control circuit board 415.

As shown in fig. 1 and 23, the brake assembly 98 further includes a signal switch 982 for controlling the second motor 933. Brake assembly 98 has a braking mode and a park mode, with signal switch 982 being deactivated when brake assembly 98 enters the braking mode and signal switch 982 being activated when brake assembly 98 enters the park mode. The signal switch 982, when triggered, can turn off the second motor 933 to more quickly stop the travel system 93 from traveling. A signal switch 982 is disposed below the pedal 981 and also below the floor 971, the signal switch 982 also being located on the left side of the riding mower 100. In order to electrically connect the signal switch 982 to the second motor 933, a first wire 421 connected to the signal switch 982 is further provided. One end of the first wire 421 is connected to the signal switch 982, and the other end of the first wire 421 extends into the circuit board box 420. More specifically, the first wire 421 is electrically connected to the power display circuit board 962, and the first wire 421 is led out from the signal switch 982, passes through the left side of the riding mower 100, passes through the front side of the riding mower 100, and finally enters the circuit board box 420. The circuit board box 420 further has a second wire 422, one end of the second wire 422 is electrically connected to the power display circuit board 962, and the other end of the second wire 422 is connected to the control module 95, and the second wire 422 may be directly connected to the control module 95 or indirectly connected to the control module 95. The second conductor 422 may also be a bus that is directly connected to the control module 95. A second wire 422 leads from the circuit board box 420, then through the front side of the riding mower 100, through the right side of the riding mower 100, and into the control module 95. Thus, the control of a plurality of systems can be realized through a simple wiring structure, the cost is reduced, and the structure is simplified.

As shown in fig. 1, 12 and 24, the illumination system 40 further includes: a left illumination assembly 43, a right illumination assembly 44. As shown in fig. 1 to 3, the lighting system 40 further includes: a back lighting assembly 45. The left illumination assembly 43 is disposed on the left side of the seat 92, the right illumination assembly 44 is disposed on the right side of the seat 92, and the rear illumination assembly 45 is disposed on the rear side of the seat 92. As shown in fig. 24 and 26, a left illumination assembly 43 is mounted to the left housing assembly 21, and the left illumination assembly 43 includes a left illumination lamp 431. A right illumination assembly 44 is mounted to the right housing assembly 22, the right illumination assembly 44 including a right illumination lamp 441. In this way, the left and right illumination assemblies 43, 44 may act as a light for the outline of the riding mower 100, thereby facilitating the outline of the riding mower 100 to be viewed by other surrounding persons.

The left illumination lamp 431 obliquely emits light downward, and the right illumination lamp 441 also obliquely emits light downward, so that the working areas on the left and right sides of the riding mower 100 can be illuminated. The left illumination lamp 431 can also project light to the lower left, so that the left side of the chassis 11 located below can be illuminated, that is, the left illumination lamp 431 emits light toward the edge of the left side of the chassis 11. The right illumination lamp 441 is also capable of projecting light to the lower right, so that the right side of the chassis 11 located below can be illuminated, that is, the right illumination lamp 441 emits light toward the edge of the right side of the chassis 11. In the present embodiment, the left illumination lamp 431, the right illumination lamp 441, the first illumination lamp 411, and the second illumination lamp 412 can be simultaneously illuminated. In the vicinity of the display screen 221, there is further provided an illumination switch 2212 for controlling the left illumination lamp 431, the right illumination lamp 441, the first illumination lamp 411, and the second illumination lamp 412 to be simultaneously lit, and when the user operates the illumination switch 2212, the left illumination lamp 431, the right illumination lamp 441, the first illumination lamp 411, and the second illumination lamp 412 can be simultaneously lit. More specifically, when the switch assembly 222 is operated by the user in the first operation mode, the riding lawn mower 100 is activated, and the user can illuminate the left illumination lamp 431, the right illumination lamp 441, the first illumination lamp 411, and the second illumination lamp 412 by triggering the illumination switch 2212. With respect to the third illumination lamp 416 and the fourth illumination lamp 418, the third illumination lamp 416 and the fourth illumination lamp 418 are illuminated whenever the user operates the switch assembly 222 in the first operation mode to activate the riding lawn mower 100, that is, the third illumination lamp 416 and the fourth illumination lamp 418 are always illuminated when the riding lawn mower 100 is running or working, and therefore, the third illumination lamp 416 and the fourth illumination lamp 418 can also be regarded as daytime illumination lamps of the riding lawn mower 100.

The rear lighting assembly 45 includes a rear light 451 disposed on the rear side of the frame 91, when the riding lawn mower 100 is activated, the rear light 451 is illuminated by the user by activating the light switch 2212. When the riding mower 100 is activated, the illumination switch 2212 is not triggered, the first illumination lamp 411 and the second illumination lamp 412 are turned off, and at this time, if the riding mower 100 backs up, the rear illumination lamp 451 blinks, thereby playing a role of warning passers-by.

As shown in fig. 1, 24-26, the riding mower 100 further includes a charging system 60, the charging system 60 being configured to charge the power supply device 94. The charging system 60 includes: a charging interface 61 provided on the riding mower 100, the charging interface 61 being used for accessing external electric power. The charging system 60 further includes: a charging assembly 62 for outputting electric power to the charging interface 61. When the charging assembly 62 is connected to the charging interface 61, the charging assembly 62 can charge the power supply device 94. The charging interface 61 is disposed on the left housing component 21 or the right housing component 22, such that the charging interface 61 is located on the left side or the right side of the seat 92 of the riding mower 100, thereby facilitating the operation of the user. Further, in the present embodiment, the power supply device 94 is provided on the rear side of the seat 92, and the riding lawn mower 100 further includes a power supply management module 941 for controlling the power supply device 94, the power supply management module 941 being provided on the rear side of the seat 92 and being disposed adjacent to the seat 92, the power supply management module 941 being disposed between the power supply device 94 and the seat 92. Like this, to charge interface 61 and set up on left casing subassembly 21 or right casing subassembly 22, can make interface 61 that charges be closer apart from power management module 941 to conveniently walk the line, the structure is simpler. Further, the charging interface 61 is provided on the left side or the right side of the seat 92, and it is possible to avoid the problem of inconvenience in charging due to the fact that it is provided on the rear side of the frame 91, and the problem of damage to the charging interface 61 when the riding mower 100 is reversed due to the fact that it is provided on the rear side of the frame 91. Charging connector 61 is also located on the left side of power supply device 94, but charging connector 61 may also be located on the right side of power supply device 94, and in the present embodiment, charging connector 61 is located on left housing component 21 as an example.

A power access terminal 611 is provided in the charging interface 61, the power access terminal 611 is connected to a charging circuit, and the charging system 60 is controlled by the charging circuit to charge the power supply device 94. A safety switch 612 is further disposed at the charging interface 61, and when the safety switch 612 is triggered, the charging circuit controls the charging system 60 to enter a state in which the power supply device 94 can be charged, so as to improve safety performance. The power access terminal 611 is connected to the power management module 941 through the first cable 613, and the safety switch 612 is connected to the power management module 941 through the second cable 614, wherein the power management module 941 is disposed at a lower side of the seat 92, and the charging interface 61 is disposed near the power management module 941, so that the lengths of the first cable 613 and the second cable 614 are shortened, the production cost is reduced, and the first cable 613 and the second cable 614 are also conveniently disposed.

Still be provided with lid 615 on the interface 61 charges, lid 615 seals interface 61 charges to can avoid the dust to enter into and influence the electric conductive property of charging interface 61 in the interface 61 that charges, also can avoid steam to enter into and cause in the interface 61 that charges to charge interface 61 department and take place the short circuit. When the cover 615 is opened, the charging interface 61 is exposed, and at this time, the safety switch 612 is not triggered, that is, only the cover 615 is opened, and the charging system 60 cannot enter a state in which the power supply device 94 can be charged, but the safety switch 612 needs to be triggered to enable the electrical system to enter a state in which the power supply device 94 can be charged, so that the safety performance of the charging system 60 is further improved.

The charging assembly 62 includes: charging gun 621, adapter 622 and plug 623, charging gun 621 is connected to adapter 622, and adapter 622 is connected to plug 623. The charging gun 621 includes a power output terminal 6211 for electronically cooperating with the power access, and the safety switch 612 is triggered when the charging gun 621 is inserted into the charging interface 61, thereby improving safety performance. That is, normally, the safety switch 612 can be triggered only when the charging gun 621 is inserted into the charging interface 61. The adapter 622 is disposed between the charging gun 621 and the plug 623, the plug 623 is used for connecting to an external utility grid, and the adapter 622 can convert the ac power received by the plug 623 into dc power that can be adapted to the power supply device 94.

The left housing member 21 is provided with the second storage box 211, and the second storage box 211 can be configured to hold a cup. The left housing component 21 may further include a third storage box 212, and the charging interface 61 is further disposed at a rear side of the third storage box 212. The third storage box 212 is further provided with a flip 213, so that some articles needing waterproof and dustproof can be placed in the third storage box 212. The third storage box 212 is further provided with an adsorption device 214 for sealing the flip cover 213 with the third storage box 212, and the adsorption device 214 may be a magnet. The third storage box 212 is also provided with a USB interface 215, so that a device such as a mobile phone can be charged.

As shown in fig. 1 and 27, the riding mower 100 further includes: a circuit board 80, where the circuit board 80 may be a circuit board in the control module 95, the circuit board 80 may also be a circuit board in the power management module 941, and the circuit board 80 may also be a circuit board of the lighting system 40 or the power display device. In fact, the circuit board 80 may be any circuit board in the riding mower 100 for electrically connecting with an electrical device to control the electrical device.

The circuit board 80 includes: a substrate 81, a printed wiring layer 82, and an insulating layer 83. The substrate 81 may be a plastic substrate or an aluminum substrate. The substrate 81 has a first surface 811 and a second surface 812, and the first surface 811 and the second surface 812 are opposite surfaces. For the circuit board 80, the first surface 811 and the second surface 812 may be understood as the largest two surfaces of the substrate 81. A printed wiring layer 82 is disposed on the first surface 811, and the printed wiring layer 82 is made of a metal conductive material. The insulating layer 83 covers the upper side of the printed wiring layer 82, and the insulating layer 83 is made of an insulating material. The insulating layer 83 also exposes the first conductive part 821 and the second conductive part 822 on the printed wiring layer 82 when covering the printed wiring layer 82. That is, the insulating layer 83 does not completely cover the printed wiring layer 82, and the insulating layer 83 is not covered on the first conductive part 821 and the second conductive part 822. The circuit board 80 further includes a first type of electronic component 84, and the first type of electronic component 84 may be mounted to the first conductive portion 821 and the second conductive portion 822. The first electronic component 84 includes a first connection portion 841 and a second connection portion 842, the first connection portion 841 is electrically connected to the first conductive portion 821, and the second connection portion 842 is electrically connected to the second conductive portion 822. The circuit board 80 further comprises a water repellent layer 85, and the water repellent layer 85 is deposited by vapor deposition to cover at least a portion of the whole of the insulating layer 83 and the first type electronic component 84 with substantially the same thickness. In the present embodiment, the waterproof layer 85 covers the entire structure of the insulating layer 83 and the first electronic component 84. After the waterproof layer 85 is covered on the first electronic component 84, the first connection portion 841 and the second connection portion 842 are insulated from each other in the path connected by the waterproof layer 85, that is, after the waterproof layer 85 is covered on the first electronic component 84, there is no short circuit between the first connection portion 841 and the second connection portion 842. In this way, the first connection portion 841 is connected to the first conductive portion 821, and the second connection portion 842 is connected to the second conductive portion 822, so that the first-type electronic component 84 is connected to the circuit formed by the printed circuit layer 82, but the waterproof layer 85 covers the whole formed by the first-type electronic component 84 and the insulating layer 83, so that the first-type electronic component 84 does not contact with external dust and water vapor, and the dustproof, waterproof and anticorrosion effects are achieved. Meanwhile, the waterproof layer 85 is covered on the insulating layer 83 in a vapor deposition mode, so that the thickness of the waterproof layer 85 on the circuit board 80 is uniform, and the waterproof performance of the circuit board 80 is improved. Moreover, when the circuit board 80 needs to be repaired, the plasma technology can be used to peel off the waterproof layer 85 on the circuit board 80, and it can be ensured that the waterproof layer 85 on the circuit board 80 is peeled off without residue. Moreover, the waterproof layer 85 can be coated on a large number of circuit boards 80 by vapor deposition, so that the production efficiency is improved, the production cost is reduced, and the production period is shortened.

In this embodiment, the circuit board 80 is further provided with a second type of electronic component 86, and the second type of electronic component 86 includes a third connecting portion 861 and a fourth connecting portion 862. The third conductive portions 823 and the fourth conductive portions 824 are also exposed on the printed wiring layer 82 when the insulating layer 83 covers the printed wiring layer 82. That is, the insulating layer 83 does not completely cover the printed wiring layer 82, and the insulating layer 83 is not covered on the third conductive portion 823 and the fourth conductive portion 824. The third connecting portion 861 is electrically connected to the third conductive portion 823, and the fourth connecting portion 862 is electrically connected to the fourth conductive portion 824, so that the second type electronic component 86 is mounted on the circuit board 80, and the second type electronic component 86 is connected to the circuit constituted by the printed wiring layer 82. The waterproof layer 85 also covers the second type electronic component 86, and after the waterproof layer 85 covers the second type electronic component 86, the paths where the third connection portion 861 and the fourth connection portion 862 are connected by the waterproof layer 85 are insulated from each other. In this embodiment, the second type of electronic component 86 further includes a current access port 863. When waterproof layer 85 covers current access port 863, current access port 863 can still be electrically connected to an external port to introduce current to circuit board 80. That is, although the waterproof layer 85 covers the current access port 863, the waterproof layer 85 does not affect the current access port 863 to be conducted with the outside. Therefore, for the second type of electronic component 86, the surface thereof is covered by the waterproof layer 85, so that the second type of electronic component 86 is not interfered by external moisture and dust, and the second type of electronic component 86 can be conducted with the outside. For current coating encapsulation glue on circuit board 80, encapsulation glue can also play certain waterproof effect though, if electronic components is covered by encapsulation glue at that time, then electronic components also can not switch on with the external world, perhaps to like those electronic components that need carry out the electricity with the external world and be connected, its surface then can not coat encapsulation glue, can make this kind of electronic components receive the influence of dust, steam in the external environment easily like this.

In the present embodiment, the first type of electronic component 84 is a chip, such as a chip capacitor or a chip resistor, and the second type of electronic component 86 is a plug, such as a plug capacitor or a switch. Of course, it is understood that in other embodiments, the first type of electronic component may also be a plug-in, and the second type of electronic component may also be a patch.

More specifically, the second-type electronic component 86 is a socket that can be connected to an external port, so that the external port can be inserted into the socket and electrically connected to the socket even when the waterproof layer 85 covers the second-type electronic component 86.

In the present embodiment, the waterproof layer 85 covers the entire structure of the insulating layer 83, the printed wiring layer 82, the first electronic component 84, and the second electronic component 86. After the insulating layer 83 and the printed wiring layer 82 are coated on the substrate 81 and the first electronic component 84 and the second electronic component 86 are mounted on the substrate 81, the waterproof layer 85 is coated on the entire structure of the substrate 81, the insulating layer 83, the printed wiring layer 82, the first electronic component 84, and the second electronic component 86. In this embodiment, the printed wiring layer 82 is disposed on the first surface 811 of the substrate 81, and the waterproof layer 85 may cover the first surface 811 of the substrate 81. In other embodiments, as shown in fig. 29, for better protecting the circuit board 87, the waterproof layer 873 may be covered on both the first surface 871 and the second surface 872 of the circuit board 87, or the waterproof layer 873 may be covered on the entire circuit board 87.

The thickness of the waterproof layer 85 is 100 nm or more and 600 nm or less, the resistance of the waterproof layer 85 in the thickness direction is 100 milliohm or less, and the waterproof layer 85 includes a first material in the form of particles having a particle size of 100 nm or less. Therefore, on one hand, the waterproof effect of the circuit board 80 can be ensured, and on the other hand, the second type electronic component 86 can be electrically connected with the external port.

In this embodiment, the waterproof layer 85 is covered on the whole formed by the waterproof layer 85 and the first electronic component 84 by plasma enhanced chemical vapor deposition, so that the consistency of the thickness of the waterproof layer 85 can be further improved, the adhesion capability of the waterproof layer 85 is strong, and the waterproof layer 85 is prevented from being separated. The plasma enhanced chemical vapor deposition method also has less influence on the structure and physical properties of the circuit board 80.

It will be appreciated that in other embodiments, the first and second surfaces of the substrate may be provided with a printed wiring layer thereon, such that the printed wiring layers on both the first and second surfaces are covered by a water-repellent layer.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.

Claims (10)

1. A power tool, comprising:

a power output member for outputting power to realize a function of the electric tool;

a main body supporting the power take-off;

a circuit board mounted to the main body;

wherein, the circuit board includes:

a substrate having a first surface and a second surface;

a printed wiring layer disposed at least on the first surface;

an insulating layer covering the upper side of the printed wiring layer, wherein when the insulating layer covers the printed wiring layer, a first conductive part, a second conductive part, a third conductive part and a fourth conductive part are exposed on the printed wiring layer;

the first electronic component comprises a first connecting part and a second connecting part, wherein the first connecting part is electrically connected with the first conductive part, and the second connecting part is electrically connected with the second conductive part;

a second type of electronic component including a third connecting portion electrically connected to the third conductive portion and a fourth connecting portion electrically connected to the fourth conductive portion;

a waterproof layer covering at least a part of the whole body composed of the insulating layer, the first type electronic component and the second type electronic component;

the waterproof layer is characterized in that after the waterproof layer covers the first type of electronic components, the first connecting part and the second connecting part are mutually insulated in the direction of a connecting path through the waterproof layer;

after the waterproof layer covers the second type of electronic component, the path directions of the third connecting part and the fourth connecting part which are connected through the waterproof layer are mutually insulated;

the second type of electronic component further comprises:

and the current access port can be electrically connected with an external port after being covered by the waterproof layer so as to introduce current to the circuit board.

2. The power tool of claim 1, wherein:

the waterproof layer covers the whole formed by the insulating layer, the first type of electronic components and the second type of electronic components in a vapor deposition mode.

3. The power tool of claim 2, wherein:

the second type of electronic component is a socket.

4. The power tool of claim 1, wherein:

the printed circuit layers on the first surface and the second surface are both covered by the waterproof layer.

5. The power tool of claim 1, wherein:

the thickness of the waterproof layer is more than or equal to 100 nanometers and less than or equal to 600 nanometers.

6. The power tool of claim 4, wherein:

the resistance of the waterproof layer in the thickness direction is less than or equal to 100 milliohms.

7. The power tool of claim 1, wherein:

the water repellent layer includes a first material in the form of particles having a size of 100 nm or less.

8. The power tool of claim 1, wherein:

the substrate is a plastic substrate or an aluminum substrate.

9. The power tool of claim 1, wherein:

the first type of electronic component is a patch or a plug-in fixedly connected to the substrate.

10. A circuit board, comprising:

a substrate having a first surface and a second surface;

a printed wiring layer disposed on the first surface;

an insulating layer covering the upper side of the printed wiring layer, wherein when the insulating layer covers the printed wiring layer, a first conductive part, a second conductive part, a third conductive part and a fourth conductive part are exposed on the printed wiring layer;

the first electronic component comprises a first connecting part and a second connecting part, wherein the first connecting part is electrically connected with the first conductive part, and the second connecting part is electrically connected with the second conductive part;

a second type of electronic component including a third connecting portion electrically connected to the third conductive portion and a fourth connecting portion electrically connected to the fourth conductive portion;

a waterproof layer covering at least a part of the whole body composed of the insulating layer, the first type electronic component and the second type electronic component;

the waterproof layer is characterized in that after the waterproof layer covers the first type of electronic components, the first connecting part and the second connecting part are mutually insulated in the direction of a connecting path through the waterproof layer;

after the waterproof layer covers the second type of electronic component, the path directions of the third connecting part and the fourth connecting part which are connected through the waterproof layer are mutually insulated;

the second type of electronic component further comprises:

and the current access port can be electrically connected with an external port after being covered by the waterproof layer so as to introduce current to the circuit board.

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