Surface cleaning device capable of lying flat

Abstract

The surface cleaning device comprises a machine body and a handle, the machine body is provided with a containing cavity formed by a front shell and a rear shell in a matched mode, the surface cleaning device has a lying state that the machine body is parallel to the ground, and the rear shell is arranged close to a surface to be cleaned in the lying state. A main control board is further arranged in the containing cavity, a handle inserting pipe used for installing the handle and a fixing column used for installing the main control board are arranged on the rear shell, and the main control board is supported on the handle inserting pipe. The problem that vibration is easily transmitted to the main control board when the machine body lies flat at present, and consequently the main control board is damaged due to vibration is solved. The strength of the handle insertion tube is fully utilized to provide support for the main control board, sufficient strength of the support can be ensured, the added supporting points can also reduce the deformation degree of the main control board when the main control board is vibrated, and therefore the fault probability of the main control board is reduced.

Description

[Technical field]

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a surface cleaning device which can lie flat. [Background technology]

[0002] The household surface cleaning device includes a body and a floor brush pivotally connected to the bottom of the body, and a handle is connected to the top of the body. The user holds the handle and controls the body and the floor brush to form an acute angle, while ensuring that the floor brush is always in contact with the surface to be cleaned, and can also obtain a more comfortable operating feel.

[0003] The surface cleaning device has key components such as a battery pack, a fan, a UI display screen, and a main control board for controlling the working status of the above key components. Many accessories are integrated inside the body, resulting in the body of the floor scrubber being relatively large. In order to clean some narrow areas such as under the bed, in addition to increasing the angle between the body and the floor brush, the body also needs to be made thinner so that the body can lie flat and extend with the floor brush during cleaning.

[0004] Therefore, we rearranged the components in the fuselage and installed the main control board directly on the shell of the fuselage. The shell of the fuselage is generally made of plastic. In order to make the fuselage thinner, the thickness of the shell is also limited. The shell cannot provide sufficient support. In this way, when the fuselage is placed in a flat position, the operation of the fan and other components in the fuselage and / or the friction between the fuselage and the surface to be cleaned during operation causes vibration, so that the vibration of the fuselage is transmitted to the main control board, causing the vibration of the main control board and resulting in unstable connection of components electrically connected to the main control board, and even causing damage to the main control board. [Utility Model Content]

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a surface cleaning device which can lie flat.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A surface cleaning device that can lie flat comprises a body and a handle, wherein the body has a accommodating cavity formed by a front shell and a rear shell, the surface cleaning device can lie flat with the body parallel to the ground, the rear shell is arranged close to the surface to be cleaned in the lying state, a main control board is also arranged in the accommodating cavity, a handle insert for installing the handle and a fixing column for installing the main control board are provided on the rear shell, and the main control board is supported on the handle insert.

[0008] In the above-mentioned flat-lying surface cleaning device, a support portion abutting against the main control panel is provided on the outer side wall of the handle insertion tube.

[0009] In the above-mentioned flat-lying surface cleaning device, the support portion protrudes from the outer side wall of the handle insert tube, and a first isolation gap is provided between the main control panel and the outer side wall of the handle insert tube.

[0010] In the above-mentioned flat-lying surface cleaning device, the support portion is supported on the center line of the main control board, and the fixing columns are arranged on both sides of the center line.

[0011] In the above-mentioned flat surface cleaning device, the handle is provided with a control component electrically connected to the main control board, and the bottom surface of the handle insertion tube is projected on the main control board in the vertical direction and is provided with a wiring channel connected to the main control board.

[0012] In the above-mentioned flat-lying surface cleaning device, a battery pack assembly with a battery pack control board is also provided in the accommodating cavity, and the battery pack control board is arranged vertically to the main control board.

[0013] In the above-mentioned flat surface cleaning device, a first isolation gap is provided between the main control board and the handle insert, and a second isolation gap is provided between the main control board and the battery pack control board, and the second isolation gap is larger than the first isolation gap.

[0014] In the above-mentioned flat-lying surface cleaning device, an inclined display screen is provided on the front shell, and the angle between the display screen and the main control panel forms an acute angle.

[0015] In the above-mentioned flat surface cleaning device, the display screen includes a first display area close to the handle and a second display area far from the handle, and the horizontal width L2 of the second display area is smaller than the horizontal width L1 of the first display area.

[0016] In the above-mentioned lying surface cleaning device, a dirty display area is provided at the edge of the display screen.

[0017] Beneficial effects of the utility model:

[0018] The main control board is supported on the handle plug, which solves the problem that the vibration is easily transmitted to the main control board when the fuselage is lying flat, causing the main control board to be damaged by vibration and unstable electrical connection with other components. The handle and the fuselage are connected in a detachable manner, and the handle can be separated from the fuselage during transportation and storage, thereby reducing the occupied space and reducing the probability of damage to the handle during transportation. A handle plug is set in the fuselage to improve the strength of the connection between the handle and the fuselage. The handle plug inserted into the handle has a strong supporting capacity. The main control board is supported on the handle plug, and the strength of the handle plug is fully utilized to provide support for the main control board, which can ensure that the support has sufficient strength, and the increased support points can also reduce the impact of the vibration of the fuselage shell when the main control board is vibrated. Thereby reducing the probability of failure of the main control board, extending the service life of the main control board, and ensuring the stable control of the main control board to other components. The above structure does not need to change the structure of the existing rear shell. After the above structure is used to support the main control board, the original rear shell can still continue to be used, which has little impact on the production cost and is convenient for upgrading the original surface cleaning device.

[0019] In a further solution, a support portion that abuts against the main control board is provided on the outer side wall of the handle insert tube. The support portion is provided on the outer side wall of the handle insert tube, which will not affect the connection between the handle insert tube and the handle, and there is no need to change the design of the handle. Moreover, the support portion is located on the outer side wall of the handle insert tube, which can make full use of the relatively strong part of the handle insert tube and provide strong support to the main control board as much as possible.

[0020] In a further solution, the support portion protrudes from the outer side wall of the handle insert tube, and a first isolation gap is provided between the main control board and the outer side wall of the handle insert tube. The support portion protrudes from the outer side wall of the handle insert tube, so as not to reduce the strength of the outer side wall of the handle insert tube, and a first isolation gap is provided between the main control board and the outer side wall of the handle insert tube, so as to avoid collision between the electrical components on the main control board and the outer side wall of the handle insert tube, thereby preventing damage to the electrical components.

[0021] In a further solution, the support part is supported on the center line of the main control board, and the fixing columns are arranged on both sides of the center line. The support part is supported on the center line of the hollow plate, so that the distances from the support part to the fixing columns on both sides of the main control board are basically equal, so that the size of the area affected by the vibration of the main control board is basically the same, and the vibration amplitude of each area is reduced, thereby reducing the impact of the vibration on the main control board.

[0022] In a further solution, the handle is provided with a control component electrically connected to the main control board, and the bottom surface of the handle plug is projected on the main control board in the vertical direction and is provided with a wiring channel connected to the main control board. The control component on the handle allows the user to issue simple control commands on the handle, which is convenient for controlling the cleaning device in a small space, and the bottom surface of the handle plug is projected on the main control board in the vertical direction, that is, the end of the main control board should exceed the handle plug, so that a wiring channel can be reserved between the main control board and the rear shell, which is convenient for the electrical connection between the control component and the main control board, avoids the connection wires from being squeezed between the main control board and other components, and facilitates installation.

[0023] In a further solution, a battery pack assembly with a battery pack control board is further provided in the accommodating cavity, and the battery pack control board is arranged vertically with the main control board. The battery pack assembly is used to provide power to the electrical components in the cleaning device, and the battery pack control board is used to control the charging and discharging of the battery pack assembly. The battery pack control board and the main control board are arranged vertically to avoid increasing the thickness of the machine body by arranging the two control boards in parallel, and the two control boards are arranged vertically so that both the battery pack control board and the main control board have sufficient heat dissipation space to prevent heat accumulation and ensure that both control boards can operate stably for a long time.

[0024] In a further solution, a first isolation gap is provided between the main control board and the handle insert, and a second isolation gap is provided between the main control board and the battery pack control board, and the second isolation gap is larger than the first isolation gap. The second isolation gap is provided between the main control board and the battery pack control board, which can prevent the electrical components on the two control boards from colliding with each other, and can also keep the main control board as far away from the battery pack as possible, so as to maintain sufficient heat dissipation space between the two and prevent heat accumulation.

[0025] In a further solution, the front housing is provided with an inclined display screen, and the angle between the display screen and the main control board is an acute angle. The inclined display screen allows the user to easily observe the information on the display screen regardless of whether the body is lying flat or standing upright, so that the user can understand the current operating status of the machine at any time. The angle between the display screen and the main control board is an acute angle, and while the display screen is kept in an inclined state, sufficient space is left between the display screen and the main control board to arrange the wiring harness and dissipate heat.

[0026] In a further solution, the display screen includes a first display area close to the handle and a second display area away from the handle, and the horizontal width L2 of the second display area is smaller than the horizontal width L1 of the first display area. When the surface cleaning device is in a flat operating state, the downwardly tilted display screen sets the second display area away from the handle toward the user, so that when the surface cleaning device is extended into a dark area such as a sofa or the bottom of a bed, it can also be conveniently viewed through the inverted trapezoidal display screen, so that as much information as possible can be displayed on the end that is convenient for the user to observe, which is more convenient for the user to view.

[0027] In a further solution, a dirt display area is provided at the edge of the display screen. The dirt display area is provided at the edge of the display screen, so that even when the surface cleaning device is stretched into a dark area such as a sofa or the bottom of a bed for cleaning in a flat operation state, the user can still quickly and intuitively understand the dirt condition of the current area to be cleaned through the area at the edge of the display screen, thereby enabling the user to effectively clean the surface to be cleaned.

[0028] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings.

Brief Description of the Drawings

[0029] The utility model is further described below in conjunction with the accompanying drawings:

[0030] Figure 1 It is a schematic structural diagram of a flat-lying surface cleaning device of the utility model;

[0031] Figure 2 It is a partial cross-sectional view of the fuselage in the utility model;

[0032] Figure 3 This is a schematic diagram of the structure of the handle cannula in the utility model;

[0033] Figure 4 It is a structural schematic diagram of the rear housing in the utility model;

[0034] Figure 5 It is an exploded view of the fuselage in the utility model;

[0035] Figure 6 This is a front view of the main control panel installed in the accommodating cavity in the utility model;

[0036] Figure 7 It is a schematic diagram of the structure of the accommodating cavity without the front shell in the present invention;

[0037] Figure 8 This is a schematic diagram of the connection structure between the body and the handle of the utility model;

[0038] Fig. 9 It is a three-dimensional diagram of the display screen in the present utility model.

[0039] The accompanying drawings are marked as follows:

[0040] Body 100, front housing 110, rear housing 120, threaded hole 121, accommodating cavity 130, first isolation gap 131, wiring channel 132, second isolation gap 133, second support column 134, main control board 140, support hole 141, screen plug terminal 142, handle plug terminal 143, battery pack signal plug terminal 144, battery pack plug terminal 145, handle plug tube 150, support part 151, first support column 152, support rib 153, fixing hole 154, mounting sleeve 155, mounting plate 156, fixing column 160, battery pack assembly 170, battery pack control board 171, display screen 180, first display area 181, second display area 182, dirty display area 183, support wheel 190;

[0041] Handle 200, button 210;

[0042] Floor brush 300. [Specific implementation method]

[0043] A surface cleaning device that can lie flat comprises a body 100, a handle 200 and a floor brush 300. The body 100 and the floor brush 300 are pivotally connected, and the body 100 and the floor brush 300 can be rotated to 180 degrees or close to 180 degrees, so that the body 100 of the surface cleaning device can lie flat parallel to the ground and can be extended into a shorter space such as under a sofa or under a bed for cleaning.

[0044] The body 100 has a accommodating cavity 130 formed by the front shell 110 and the rear shell 120. A main control board 140 is arranged in the accommodating cavity 130. The handle 200 can be detachably installed on the body 100. A handle insert 150 for installing the handle 200 is provided on the rear shell 120. The handle 200 is inserted into the handle insert 150. This can simplify the disassembly steps of the handle 200 and ensure that the handle 200 is firmly installed on the body 100. A fixing column 160 is also provided on the rear shell 120 for fixing the main control board 140. The main control board 140 is also supported on the handle insert 150.

[0045] When the surface cleaning device is operated in a flat state, the rear housing 120 for fixing the main control board 140 is arranged almost parallel to the surface to be cleaned, and moves back and forth on the surface to be cleaned as the user pushes the handle 200. In the prior art, in order to prevent the surface cleaning device from being worn when the body shell is operated in a flat state, a support wheel 190 is usually set on the rear housing, so that there is a certain gap between the rear housing 120 and the surface to be cleaned, so that the surface cleaning device can move smoothly on the surface to be cleaned in a flat state. However, when the surface to be cleaned is uneven, there are large particles of dirt, the user twists the body, etc., the rear housing 120 still has a certain probability of contacting the surface to be cleaned when it is operated in a flat state, causing the rear housing 120 to vibrate. Alternatively, the support wheel 190 installed on the rear housing 120 transmits the vibration to the rear housing 120 when it is running on the surface to be cleaned, causing the rear housing 120 to vibrate to a certain extent.

[0046] The vibration of the fuselage 100 is transmitted to the main control board 140, causing the vibration of the main board, resulting in an increase in the failure rate of the main control board 140, an unstable electrical connection between the main control board 140 and other components, and damage to the surface cleaning device. Since the handle plug 150 plays a connecting role between the handle 200 and the fuselage 100, the handle plug 150 has a high strength. When the handle 200 is inserted into the handle plug 150, the stability of the handle plug 150 is further improved. Supporting the main control board 140 on the handle plug 150, on the one hand, provides a more stable support for the main control board 140, and on the other hand, the main control board 140 increases the support points, gets rid of the fixed installation relying solely on the fixing parts on the rear shell 120, reduces the influence of the vibration of the rear shell 120 on the main control board 140, and reduces the failure probability of the main control board 140.

[0047] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0048] Embodiment 1

[0049] like Figures 1 to 7As shown, a surface cleaning device that can lie flat includes a body 100, a floor brush 300 and a handle 200, the floor brush 300 is pivoted at the end of the body 100, and the handle 200 is detachably connected to the other end of the body 100. The body 100 has a accommodating cavity 130 formed by the cooperation of a front shell 110 and a rear shell 120, the front shell 110 and the rear shell 120 are generally made of lightweight materials such as plastic, and the front shell 110 and the rear shell 120 are fixedly connected by snaps or screws. The surface cleaning device has a flat state in which the body 100 is parallel to the ground, that is, the angle between the body 100 and the floor brush 300 is almost 180 degrees, so that it can be more convenient to reach into a narrow place for cleaning. In the flat state, the rear shell 120 is arranged close to the surface to be cleaned, that is, in the flat state, the rear shell 120 is at the bottom and the front shell 110 is at the top. The upper and lower relationships in this embodiment are all positional relationships when the body 100 lies flat.

[0050] A main control board 140 is arranged in the accommodating cavity 130. The main control board 140 is generally in the shape of a rectangular plate, and a plurality of electrical components are arranged on the main control board 140. A fixing column 160 is arranged on the rear housing 120, and the main control board 140 is fixedly connected to the fixing column 160 by bolts or plugging. In this embodiment, four fixing columns 160 are arranged on the rear housing 120 corresponding to the four corners of the main control board 140, wherein two fixing columns 160 at one corner are plugged into the through holes provided on the main control board 140, and threaded holes are provided on the two fixing columns 160 at the other corner. The main control board 140 is fixedly connected to the fixing columns 160 by bolts passing through the mounting holes on the main control board 140, thereby achieving four-point fixation of the main control board 140 and the rear housing 120. Optionally, the main control board 140 may also be provided with two threaded holes on the diagonal line and fixedly installed with the rear shell 120 through two fixing positions; or the main control board 140 may be fixedly connected with two fixing columns 160, and the two fixing positions are respectively provided corresponding to a diagonal line of the main control board 140.

[0051] A handle insert 150 for mounting the handle 200 is also provided on the rear shell 120. The handle insert 150 can be a separate component assembled and fixed with the rear shell 120, or the handle insert 150 can be integrally provided with the rear shell 120. In this embodiment, the handle insert 150 is a separate component, so when it is necessary to adapt to handles 200 of different specifications, it is sufficient to replace the corresponding handle insert 150, which can improve the versatility of other components and reduce production costs.

[0052] Optionally, in this embodiment, the handle insert 150 includes a mounting sleeve 155 for mounting the handle 200 and a mounting plate 156 integrally formed with the mounting sleeve 155. When the surface cleaning device is in a flat state, the mounting plate 156 is arranged away from the rear housing 120. The mounting plate 156 is larger than the width of the mounting sleeve 155 in the width direction, so that the mounting plate 156 at least partially covers the mounting sleeve 155 in width, and the mounting plate 156 is provided with a mounting position for matching with the rear housing, so that the handle insert 150 can be stably mounted with the rear housing through the mounting device.

[0053] The handle insert tube 150 is a hollow tubular structure, and the handle 200 is inserted into the handle insert tube 150. A clamping block that is clamped with the handle 200 is provided in the handle insert tube 150 to prevent the handle 200 from accidentally loosening from the handle insert tube 150. Optionally, an unlocking button that cooperates with the clamping block is also provided on the handle insert tube 150. When the button is locked, the handle 200 and the handle insert tube 150 are fixedly installed. The handle 200 can be separated from the handle insert tube 150 only by pressing the unlocking button. The main control board 140 is supported on the handle insert tube 150, which improves the stability of the main control board 140 in the accommodating chamber 130 and can also reduce the influence of vibration of the fan and the like on the main control board 140.

[0054] like Figure 2 , Figure 3 , Figure 5 As shown, on the basis of the above embodiment, a support portion 151 is provided on the outer wall of the handle insert tube 150 to abut against the main control board 140, and the support portion 151 can be targeted to support the designated position on the main control board 140, so that the handle insert tube 150 can support the main control board 140 more targetedly. A fixing hole 154 is provided on the handle insert tube 150, and a bolt passes through the fixing hole 154 and cooperates with the corresponding threaded hole 121 on the rear housing 120, so that the handle insert tube 150 is fixed to the rear housing 120. The handle insert tube 150 firmly fixed to the rear housing 120 also provides a stable foundation for supporting the main control board 140.

[0055] Furthermore, the support portion 151 protrudes from the outer side wall of the handle insert tube 150, and a first isolation gap 131 is provided between the main control board 140 and the outer side wall of the handle insert tube 150. This can ensure that the electrical components on the main control board 140 will not touch the outer side wall of the handle insert tube 150, thereby preventing the electrical components from being damaged, and allowing the main control board 140 to maintain a gap with the handle insert tube 150, thereby improving the heat dissipation of the main control board 140. Preferably, the main control board 140 includes a main control board connection surface for plugging with electrical components and a welding surface for user welding of the plug section, and the first isolation gap 131 is provided to keep a certain distance between the welding surface and the outer side wall of the handle insert tube 150. In this embodiment, the support portion 151 is a first support column 152 protruding from the outer wall of the handle tube 150, and four support ribs 153 are provided between the outer wall of the first support column 152 and the outer wall of the handle tube 150, and a support hole 141 is provided at a position corresponding to the support portion 151 on the main control board 140, and the support hole 141 is adapted to the first support column 152, so that the main control board 140 next to the support hole 141 can be placed on the support rib 153, thereby limiting the horizontal plane where the main control board 140 is located through the cooperation between the first support column 152 and the support hole 141, and at the same time, the main control board 140 is supported by the support rib 153, and the main control board 140 is limited from multiple dimensions to reduce the influence of vibration on the main control board 140.

[0056] In addition, if Figure 4 , Figure 5 As shown, the support portion 151 is supported on the center line of the main control board 140, and the fixing columns 160 are arranged on both sides of the center line. Since the support portion 151 is arranged on the center line of the main control board 140, the spacing between the support portion 151 and the fixing columns 160 is basically equal or has only a relatively small distance difference. In this way, the area of ​​the main control board 140 between the support portion 151 and the fixing columns 160 is basically equal, which is beneficial to reducing the vibration amplitude of the main control board 140 when it is vibrated, avoiding a large unsupported area of ​​the main control board 140, and reducing the impact of vibration on the main control board 140. In this embodiment, the support portion 151 is arranged on the center line of the main control board 140 along the length direction of the fuselage 100, and the fixing columns 160 are respectively arranged on both sides of the center line, and it is best that the fixing columns 160 are arranged according to the diagonal of the main control board 140, and the main control board 140 is fixedly connected to the fixing columns 160 by screws. Two second support columns 134 are arranged on the other diagonal line of the main control board 140. The structure of the second support columns 134 is consistent with that of the first support columns 152. Support holes 141 corresponding to the positions of the second support columns 134 are opened on the main control board 140, thereby forming a structure in which the four corners and the center of the main control board 140 are fixed or supported, and a stable connection of the main control board 140 is achieved by fixing with a minimum number of screws.

[0057] The handle 200 is provided with a control component electrically connected to the main control board 140, so that commonly used command buttons can be set on the handle 200, and the user can conveniently adjust the operating state when holding the handle 200 to operate the surface cleaning device. The bottom surface of the handle plug 150 is projected on the main control board 140 in the vertical direction and is provided with a wiring channel 132 connected to the main control board 140, that is, the main control board 140 is closer to the floor brush 300 than the handle plug 150, so that the main control board 140 is suspended on the rear housing 120, thereby forming a wiring channel 132 between the main control board 140 and the rear housing 120, which is convenient for connecting the wires of the handle plug 150 to the main control board 140.

[0058] like Figure 2 , Figure 5 As shown, on the basis of the above embodiment, in addition to the main control board 140, the accommodating cavity 130 is also provided with a battery pack assembly 170 with a battery pack control board 171. The battery pack assembly 170 is used to supply power to the electrical components in the fuselage 100, and the battery pack control board 171 is used to control the charging and discharging of the battery pack assembly 170. The battery pack control board 171 is generally fixed to the end of the battery pack assembly 170. In this embodiment, the battery pack control board 171 is arranged close to the main control board 140, so that the distance from the battery pack assembly 170 to the main control board 140 can be reduced, and it is convenient to route the wires to electrically connect the two.

[0059] Furthermore, the battery pack control board 171 is vertically arranged with the main control board 140. In this embodiment, when the body is in a flat state, the main control board 140 is in a horizontal state, and the battery pack control board 171 is vertically arranged, thereby forming a vertical arrangement state of the battery pack control board 171 and the main control board 140. Such an arrangement allows the battery pack control board 171 and the main control board 140 to have sufficient space to set corresponding electrical components without interfering with each other, and allows the battery pack control board 171 and the main control board 140 to have heat dissipation space for heat dissipation, and the main control board 140 and the battery pack assembly 170 are arranged side by side in the horizontal direction, which can reduce the thickness of the body 100 and make the body 100 thinner.

[0060] Furthermore, a second isolation gap 133 is provided between the main control board 140 and the battery pack control board 171, and the second isolation gap 133 is larger than the first isolation gap 131. Considering that the battery pack control board 171 generates a lot of heat when the battery pack assembly 170 is charged and discharged, the size of the second isolation gap 133 needs to be increased as much as possible, and the increase in the second isolation gap 133 does not affect the thickness of the body 100, while the first isolation gap 131 can be minimized as much as possible on the premise of ensuring that the electrical components on the main control board 140 do not touch the outer wall of the handle insert 150, so as to reduce the impact on the thickness of the body 100.

[0061] like Figure 6 , Figure 7 As shown, the connection surface of the main control board 140 faces the front housing 110, and a screen plug terminal 142, a handle plug terminal 143, a battery pack signal plug terminal 144 and a battery pack plug terminal 145 are provided on the connection surface. A display assembly is provided on the body for displaying the running status of the surface cleaning device. The screen plug terminal 142 is located at the end of the main control board 140 close to the display assembly. Since the display assembly is generally arranged at the top of the body, the screen plug terminal 142 is also arranged close to the end of the body. A connecting wire connected to the screen plug terminal 142 is provided on the back of the display assembly, so that the wire distance between the display assembly and the screen plug terminal 142 can be shortened as much as possible. As an optional solution, when the surface cleaning device is in a flat state, the projection of the display screen 180 toward the main control board 140 at least covers the screen plug terminal 142, so that the display screen 180 and the main control board 140 can be directly plugged through a shorter electrical connection line. The handle insert 150 is located below the main control board 140. A control assembly is provided at the end of the handle insert 150 extending into the accommodating cavity 130. Handle plug terminals 143 connected to the control assembly are provided on both sides of the main control board 140. The control assembly and the handle plug terminals 143 are connected by wires. The control assembly is connected to the button 210 on the handle 200, so that a control command is issued through the button 210 on the handle 200. The end of the main control board 140 close to the battery pack assembly 170 is provided with a battery pack signal plug terminal 144 and a battery pack plug terminal 145. The two terminals can be arranged at intervals, and are arranged according to the positions of the battery connection terminals on the corresponding battery pack control board 171 and the battery pack assembly 170, so as to minimize the distance of the connecting wire. Through the above arrangement, each plug terminal on the main control board 140 is close to the corresponding electrical component, which can not only effectively shorten the length of the connection guide, but also make the entire layout more reasonable and neat. Since all the plug terminals are located on the connection surface of the main control board 140, and the connection surface faces the front housing 110, the plugging position can be quickly found during assembly, and there is enough space for operation and smooth plugging.

[0062] When the body 100 is in a flat state, the main control board 140 is also in a flat state. At this time, the vibration generated by the fan will affect the main control board 140 to also generate vibration, resulting in cold solder joints of the electrical components on the main control board 140. By adopting the flat surface cleaning device with the above structure, the main control board 140 is supported on the handle insert 150 with higher strength in the body 100, which not only provides more support points for the main control board 140, but also reduces the amplitude of vibration transmission to the main control board 140 due to the strength of the handle insert 150, thereby greatly reducing the influence of vibration on the main control board 140, thereby reducing the probability of failure of the main control board 140.

[0063] Embodiment 2

[0064] like Figure 8 , Fig. 9 As shown, on the basis of the first embodiment, this embodiment is provided with an inclined display screen 180 on the front shell 110 for displaying the operating status of the surface cleaning device. The angle between the display screen 180 and the main control board 140 is acute. When the body 100 is in a lying state, the user can also conveniently observe the content on the display screen 180 with the inclined display screen 180. Correspondingly, an inclined transparent or translucent portion can also be provided on the front shell 110 to cooperate with the display screen 180 to protect the display screen 180. The inclined portion on the front shell 110 also changes the overall shape of the front shell 110, avoiding the appearance of sharp edges and corners between the side wall and the top surface of the front shell 110. The display screen 180 forms an acute angle with the main control board 140, and the distance between the display screen 180 and the main control board 140 is maintained at more than 30 mm, so that the connector terminals of the display screen can be plugged into the main control board 140 without interference, and the impact of the display screen 180 on the vertical space of the main control board 140 is reduced, leaving enough space for heat dissipation, and at the same time, a certain space can be reserved between the display screen 180 and the main control board 140 for the arrangement of the connecting lines between the display screen 180 and the main control board 140.

[0065] Furthermore, there is an arc-shaped transition between the top surface of the front housing 110 and the left and right side surfaces, and there is an inclined transition between the top surface of the front housing 110 and the side surface adjacent to the handle 200. The display screen 180 is set close to the inclined surface, so that the display screen 180 can obtain the maximum display area and is convenient for users to view. The display screen 180 includes a first display area 181 close to the handle 200 and a second display area 182 away from the handle 200. The horizontal width L2 of the second display area 182 is smaller than the horizontal width L1 of the first display area 181, so that the first display area 181 close to the user is wider and can display more content. When the body 100 is in a flat state, the first display area 181 is closer to the user, and the user can view the content of the first display area 181 more clearly, which improves the user experience. A dirt display area 183 may also be provided at the edge of the display screen 180. The dirt display area 183 may be at the end close to the handle 200 or at the end away from the handle 200 or on both sides of the display screen 180. The dirt display area 183 may display the degree of dirtiness of the surface being cleaned. The user may understand the cleaning status of the current surface according to the prompts in the dirt display area 183 so as to perform cleaning operations accurately without the need for the user to repeatedly check whether the cleaning area has been cleaned after cleaning.

[0066] This embodiment improves the user experience by changing the position of the display screen 180 and adjusting the display area, allowing the user to accurately read the content on the display screen 180 when the body 100 is in a lying state, and can timely understand the dirtiness of the current cleaning area, thereby improving the user experience.

[0067] For other contents not described in this embodiment, please refer to Embodiment 1.

[0068] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0069] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0070] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The above description is only a specific implementation of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that the present utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the present utility model will be included in the scope of the claims.

Claims

1. A flat surface cleaning device, comprising a body and a handle, wherein the body has a receiving cavity formed by a front shell and a rear shell, the surface cleaning device has a flat state in which the body is parallel to the ground, and the rear shell is arranged close to the surface to be cleaned in the flat state, characterized in that: A main control board is also arranged in the accommodating cavity, and a handle insert for installing a handle and a fixing column for installing the main control board are arranged on the rear shell body, and the main control board is supported on the handle insert.

2. A flat surface cleaning device according to claim 1, characterized in that: A supporting portion abutting against the main control board is provided on the outer side wall of the handle insertion tube.

3. A flat surface cleaning device according to claim 2, characterized in that: The support portion protrudes from the outer side wall of the handle insert tube, and a first isolation gap is provided between the main control board and the outer side wall of the handle insert tube.

4. A flat surface cleaning device according to claim 2, characterized in that: The supporting part is supported on the center line of the main control board, and the fixing columns are arranged on both sides of the center line.

5. A flat surface cleaning device according to claim 1, characterized in that: The handle is provided with a control component electrically connected to the main control board. The bottom surface of the handle insertion tube is projected onto the main control board in the vertical direction and is provided with a wiring channel connected to the main control board.

6. A flat surface cleaning device according to claim 1, characterized in that: A battery pack assembly with a battery pack control board is also provided in the accommodating cavity, and the battery pack control board is arranged vertically to the main control board.

7. A flat surface cleaning device according to claim 6, characterized in that: A first isolation gap is provided between the main control board and the handle insertion tube, and a second isolation gap is provided between the main control board and the battery pack control board, and the second isolation gap is larger than the first isolation gap.

8. A flat surface cleaning device according to any one of claims 1 to 7, characterized in that: The front housing is provided with an inclined display screen, and the angle between the display screen and the main control board forms an acute angle.

9. A flat surface cleaning device according to claim 8, characterized in that: The display screen includes a first display area close to the handle and a second display area far from the handle, and a horizontal width L2 of the second display area is smaller than a horizontal width L1 of the first display area.

10. A flat surface cleaning device according to claim 8, characterized in that: A dirty display area is provided at the edge of the display screen.

Images