Mobile chassis, mobile device and air conditioner

Abstract

The present invention discloses a mobile chassis, a mobile device and an air conditioner. Wherein, the mobile chassis includes a chassis main body, a support wheel assembly and a drive wheel assembly. The support wheel assembly is installed on the chassis main body. The support wheel assembly includes a first support wheel group and a second support wheel group which are arranged at intervals. The first support wheel group and the second support wheel group jointly support the chassis main body. The drive wheel assembly is installed on the chassis main body and is located between the first support wheel group and the second support wheel group. The drive wheel assembly includes a drive wheel, and the drive wheel is elastically movable relative to the chassis main body in the up and down direction. The mobile chassis of the present invention can make the drive wheel better contact the ground for stable driving when crossing an obstacle or a sunken ground, effectively improving the obstacle-crossing ability of the mobile chassis.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile devices, and particularly to a mobile chassis, a mobile device, and an air conditioner. Background Art

[0002] In the related art, in order to meet people's diverse needs for products, a driving wheel structure is generally provided at the bottom of a mobile air conditioner or a device with an air treatment function, and the mobile air conditioner or the device with an air treatment function is driven to move forward by the driving wheel structure. However, due to the poor obstacle-crossing ability of the existing driving wheel structure, the requirement for the ground is very high. If the ground is slightly uneven, the driving wheel may be suspended, resulting in the inability of the mobile air conditioner or the device with an air treatment function to move forward normally.

[0003] The above content is only used to assist in understanding the technical solution of the invention, and does not represent an admission that the above content is the prior art. Summary of the Invention

[0004] The main object of the present invention is to provide a mobile chassis, aiming to solve the technical problem of poor obstacle-crossing ability of the driving wheel structure in the prior art.

[0005] To achieve the above object, the present invention provides a mobile chassis, including:

[0006] A chassis main body;

[0007] A support wheel assembly installed on the chassis main body, the support wheel assembly including a first support wheel group and a second support wheel group arranged at intervals, and the first support wheel group and the second support wheel group jointly support the chassis main body; and

[0008] A driving wheel assembly installed on the chassis main body and located between the first support wheel group and the second support wheel group, the driving wheel assembly including a driving wheel, and the driving wheel is elastically movable relative to the chassis main body in the vertical direction.

[0009] In one embodiment, the driving wheel is swingable relative to the chassis main body in the vertical direction.

[0010] In one embodiment, the mobile chassis further includes a first elastic member, one end of the first elastic member is connected to the chassis main body, and the other end of the first elastic member is connected to the driving wheel.

[0011] In one embodiment, the first elastic member is a tension spring.

[0012] In one embodiment, the driving wheel assembly further includes a mounting seat, the driving wheel is installed on the mounting seat, and the mounting seat is rotatably connected to the chassis main body.

[0013] In one embodiment, the mobile chassis further includes a fixed seat, the fixed seat is installed on the chassis main body, the mounting seat is arranged in the fixed seat and is rotatably connected to the fixed seat; an installation opening is provided on the fixed seat, the first elastic member is installed at the installation opening, one end of the first elastic member is fixed to the fixed seat, and the other end is fixed to the mounting seat.

[0014] In one embodiment, the mounting seat is provided with a first fixing portion, the fixed seat is provided with a second fixing portion opposite to the first fixing portion, one end of the first elastic member is fixed to the first fixing portion, and the other end is fixed to the second fixing portion.

[0015] In one embodiment, the driving wheel assembly further includes a driving motor and a gear assembly, the driving motor is connected to the driving wheel through the gear assembly to drive the driving wheel to rotate.

[0016] In one embodiment, the first supporting wheel set is arranged in the middle of the front side of the chassis main body.

[0017] In one embodiment, the first supporting wheel set includes:

[0018] The first supporting wheel set includes:

[0019] A bracket;

[0020] A supporting wheel, installed on the bracket; and

[0021] An auxiliary wheel, installed on the bracket, the lower edge of the auxiliary wheel is higher than the lower edge of the supporting wheel.

[0022] In one embodiment, the first supporting wheel set further includes:

[0023] An auxiliary wheel frame, connecting the bracket, the auxiliary wheel frame can swing relative to the bracket, and the auxiliary wheel is installed on the auxiliary wheel frame.

[0024] In one embodiment, the first supporting wheel set further includes a second elastic member, one end of the second elastic member is connected to the auxiliary wheel frame, and the other end is connected to the bracket.

[0025] In one embodiment, the bracket is provided with an installation through opening, the auxiliary wheel frame is provided with a third fixing portion, and the third fixing portion extends out of the installation through opening for fixing one end of the second elastic member.

[0026] In one embodiment, the auxiliary wheel frame is rotatably connected to the bracket.

[0027] In one embodiment, the bottom of the bracket is provided with a guiding portion inclined backward, and the auxiliary wheel is arranged at the guiding portion.

[0028] In one embodiment, the number of the second support wheel sets is two, and the two second support wheel sets are arranged at the rear side of the chassis main body.

[0029] The present invention further provides a mobile device, including a device main body and a mobile chassis. The mobile chassis is arranged at the bottom of the device main body, and the mobile chassis includes:

[0030] A chassis main body;

[0031] A support wheel assembly installed on the chassis main body. The support wheel assembly includes a first support wheel set and a second support wheel set arranged at intervals. The first support wheel set and the second support wheel set jointly support the chassis main body; and

[0032] A driving wheel assembly installed on the chassis main body and located between the first support wheel set and the second support wheel set. The driving wheel assembly includes a driving wheel, and the driving wheel is elastically movable relative to the chassis main body in the up-and-down direction.

[0033] In one embodiment, the device main body includes an air temperature adjustment module and / or an air treatment module.

[0034] In one embodiment, the air treatment module includes at least one of a purification module, a humidification module, an aromatherapy module, a formaldehyde removal module, and a sterilization module.

[0035] The present invention further provides an air conditioner, including a main machine and a sub-machine. The main machine includes an indoor heat exchange module, and a receiving cavity is defined in the main machine; the sub-machine is detachably installed in the receiving cavity, the sub-machine is a mobile device, the mobile device includes a device main body and a mobile chassis, the mobile chassis is arranged at the bottom of the device main body, and the mobile chassis includes:

[0036] A chassis main body;

[0037] A support wheel assembly installed on the chassis main body. The support wheel assembly includes a first support wheel set and a second support wheel set arranged at intervals. The first support wheel set and the second support wheel set jointly support the chassis main body; and

[0038] A driving wheel assembly installed on the chassis main body and located between the first support wheel set and the second support wheel set. The driving wheel assembly includes a driving wheel, and the driving wheel is elastically movable relative to the chassis main body in the up-and-down direction.

[0039] The mobile chassis of the present invention includes a chassis main body, a support wheel assembly, and a drive wheel assembly. The support wheel assembly is installed on the chassis main body. The support wheel assembly includes a first support wheel group and a second support wheel group that are spaced apart. The first support wheel group and the second support wheel group jointly support the chassis main body. The drive wheel assembly is installed on the chassis main body and is located between the first support wheel group and the second support wheel group. The drive wheel assembly includes a drive wheel, and the drive wheel is elastically movable relative to the chassis main body in the vertical direction. Thus, when the mobile chassis is on an obstacle-crossing concave ground, the drive wheel can move downward relative to the chassis main body, and the drive wheel always maintains good contact with the ground for stable driving, thereby avoiding the abnormal walking of the mobile device caused by the suspension of the drive wheel, effectively improving the obstacle-crossing ability of the mobile chassis, and ensuring the normal walking of the mobile chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0041] Figure 1 It is a schematic structural diagram of an embodiment of a mobile device of the present invention;

[0042] Figure 2 For Figure 1 It is a schematic structural diagram of the mobile device after removing the disassembly and assembly plate;

[0043] Figure 3 It is a schematic structural diagram of an embodiment of a mobile chassis of the present invention;

[0044] Figure 4 For Figure 3 It is a bottom view of the mobile chassis in ;

[0045] Figure 5 For Figure 3 It is a side view of the mobile chassis from one perspective in ;

[0046] Figure 6 For Figure 3 It is a side view of the mobile chassis from another perspective in ;

[0047] Figure 7 For Figure 3 It is an exploded structural diagram of the mobile chassis in ;

[0048] Figure 8 For Figure 3 It is a schematic diagram of a usage state of the mobile chassis in ;

[0049] Figure 9 For Figure 3 Another usage state schematic diagram of the mobile chassis in the middle;

[0050] Figure 10 For Figure 9 Internal detail diagram of the mobile chassis in the middle;

[0051] Figure 11 Assembly structure diagram of the drive wheel assembly, suspension device and fixed seat in

[10] ;

[0052] Figure 12 For Figure 11 Exploded schematic diagram of the assembly structure shown;

[0053] Figure 13 For Figure 4 Schematic diagram of the structure of the first support wheel set in the middle;

[0054] Figure 14 For Figure 13 Assembly detail diagram of the first support wheel set in the middle;

[0055] Figure 15 For Figure 13 Exploded structure schematic diagram of the first support wheel set in the middle;

[0056] Figure 16 For Figure 15 Assembly structure diagram of the auxiliary wheel frame and auxiliary wheels in the middle;

[0057] Figure 17 For Figure 7 Schematic diagram of the structure of the battery pack assembly in the middle;

[0058] Figure 18 For Figure 17 Partial enlarged view of point A in the middle;

[0059] Figure 19 For Figure 17 Exploded structure schematic diagram of the battery pack assembly in the middle;

[0060] Figure 20 For Figure 2 Schematic diagram of the structure of the wiring part in the middle.

[0061] Explanation of the reference numerals in the drawings:

[0062]

[0063] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0064] It should be noted that if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, such descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes the solution of A, or the solution of B, or the solution where A and B are satisfied simultaneously.

[0065] The present invention provides a mobile chassis. Among them, the mobile chassis can be applied to various mobile devices, such as but not limited to mobile air conditioners or devices with air treatment functions, etc.

[0066] Please refer to Figures 1 to 7 , the mobile chassis 100 of the present invention includes a chassis main body 110, a support wheel assembly, and a drive wheel assembly 130. Both the support wheel assembly and the drive wheel assembly 130 are installed at the bottom of the chassis main body 110.

[0067] In the embodiments of the present invention, the mobile chassis 100 is an intelligent mobile chassis and can move and walk by itself. The chassis main body 110 includes a chassis housing 111. An installation cavity is constructed inside the chassis housing 111 for installing the internal components of the mobile chassis 100. The chassis housing 111 can be integrally formed. Of course, for the convenience of disassembly and assembly, the chassis housing 111 can also be a split structure. For example, the chassis housing 111 includes an upper shell and a lower shell, and the upper shell and the lower shell are spliced together to form the installation cavity; or for another example, as Figure 7 shown, the chassis housing 111 includes a shell cover 113, an upper cover plate 112, and a lower cover plate 114. The shell cover 113 is annularly arranged and forms an installation cavity. Both the upper and lower ends of the shell cover 113 are open. The upper cover plate 112 and the lower cover plate 114 are respectively covered on the upper end and the lower end of the shell cover 113. Here, the structure of the chassis housing 111 is not specifically limited. Without loss of generality, the chassis housing 111 further includes a front bumper and a rear bumper. The front bumper is installed on the front side of the shell cover 113, and the rear bumper is installed on the rear side of the shell cover 113, so as to improve the anti-impact ability of the mobile chassis 100. In addition, the mobile chassis 100 further includes an electric control box assembly arranged inside the shell cover 113. The electric control box assembly is used to control the movement of the mobile chassis 100. The electric control box assembly has good flame retardant performance and can avoid fire and explosion.

[0068] To improve the stability of the mobile chassis 100 and prevent the mobile chassis 100 from tipping over, the support wheel assembly at least includes a first support wheel group 150. It can be understood that the support wheel assembly may include a first support wheel group 150 and a second support wheel group 160, or may only include the first support wheel group 150. In one embodiment, the support wheel assembly includes a first support wheel group 150 and a second support wheel group 160. The first support wheel group 150 and the second support wheel group 160 are spaced apart. The first support wheel group 150 and the second support wheel group 160 jointly support the chassis main body 110. Among them, the structure of the first support wheel group 150 and the structure of the second support wheel group 160 may be the same or different, and no specific limitation is made. Of course, the number of the first support wheel group 150 and the number of the second support wheel group 160 may also be the same or different, and no specific limitation is made. The first support wheel group 150 and the second support wheel group 160 may be spaced apart in the front-back direction of the chassis main body 110. For example, the first support wheel group 150 is provided on the front side of the chassis main body 110, and the second support wheel group 160 is provided on the rear side of the chassis main body 110; or, the first support wheel group 150 is provided on the rear side of the chassis main body 110, and the second support wheel group 160 is provided on the front side of the chassis main body 110. Here, "front" can be understood as the front of the mobile chassis 100 along its moving direction, and "rear" can be understood as the rear of the mobile chassis 100 along its moving direction. To enable the mobile chassis 100 to move forward by itself, the drive wheel assembly 130 is located between the first support wheel group 150 and the second support wheel group 160. The structures of the first support wheel group 150 and the second support wheel group 160 will be introduced in detail below.

[0069] In one embodiment, the drive wheel assembly 130 includes a drive wheel 133. The drive wheel 133 is elastically movable relative to the chassis main body 110 in the up-down direction (such as Figure 9 and Figure 10As shown). In this way, when the mobile chassis 100 traverses an obstacle-ridden sunken ground, the driving wheel 133 moves downward relative to the chassis housing 111, and the driving wheel 133 makes good contact with the ground, so that it can ensure that the driving wheel 133 stably drives the mobile chassis 100 to move forward. In the prior art, since the driving wheel 133 cannot move up and down, when encountering a ground pit, the driving wheel 133 often becomes suspended, causing the mobile chassis 100 to be unable to move forward normally. Among them, there are many ways for the driving wheel 133 to be elastically movable in the up and down direction relative to the chassis main body 110. For example, the driving wheel 133 can swing in the up and down direction relative to the chassis main body 110, or the driving wheel 133 can move up and down relative to the chassis main body 110. An installation notch 115 is provided at the bottom of the chassis main body 110, and the driving wheel is arranged at the installation notch 115. When the mobile chassis 100 traverses an obstacle-ridden sunken ground, the driving wheel 133 can move out of the installation notch 115; when the mobile chassis 100 passes through a horizontal ground, the driving wheel 133 can move into the installation notch 115, so as to realize the up and down elastic movement of the driving wheel 133 relative to the chassis main body 110.

[0070] The driving wheel 133 being elastically movable relative to the chassis main body 110 can be understood as that the driving wheel 133 is elastically connected to the chassis main body 110, and the chassis main body 110 has an elastic pulling force on the driving wheel 133, and this elastic pulling force balances the gravity of the mobile chassis 100 acting on the driving wheel 133. When the mobile chassis 100 moves from a horizontal ground to a sunken ground, the first support wheel set 150 located on the front side of the chassis main body 110 first passes through the sunken ground, while the driving wheel 133 and the second support wheel set 160 are located on the horizontal ground. At this time, the elastic pulling force of the chassis main body 110 on the driving wheel 133 enables the driving wheel 133 to bear part of the weight of the mobile chassis 100, thereby preventing the mobile chassis 100 from tipping forward, and thus ensuring the stable movement of the mobile chassis 100. When the driving wheel 133 moves to the sunken ground, the driving wheel 133 moves downward relative to the chassis main body 110, so that the driving wheel 133 always maintains good contact with the ground for stable driving, thereby avoiding the situation that the mobile device 300 cannot move forward normally due to the suspension of the driving wheel 133.

[0071] The mobile chassis 100 of the present invention includes a chassis main body 110, a support wheel assembly, and a drive wheel assembly 130. The support wheel assembly is mounted on the chassis main body. The support wheel assembly includes a first support wheel group 150 and a second support wheel group 160 that are spaced apart. The first support wheel group 150 and the second support wheel group 160 jointly support the chassis main body 110. The drive wheel assembly 130 is mounted on the chassis main body 110 and is located between the first support wheel group 150 and the second support wheel group 160. The drive wheel assembly 130 includes a drive wheel 133, and the drive wheel 133 is elastically movable relative to the chassis main body 110 in the vertical direction. Thus, when the mobile chassis 100 is on an obstacle-crossing concave ground, the drive wheel assembly 130 can move downward relative to the chassis main body, and the drive wheel 133 always maintains good contact with the ground for stable driving, thereby avoiding the situation that the mobile device 300 cannot walk normally due to the drive wheel 133 being suspended, effectively improving the obstacle-crossing ability of the mobile chassis 100 and ensuring the normal walking of the mobile chassis 100.

[0072] Please refer to Figure 11 and Figure 12 , in an embodiment, the drive wheel 133 is swingable relative to the chassis main body 110 in the vertical direction. By making the drive wheel 133 swingable, on the one hand, the ability of the drive wheel 133 to cross obstacle pits is improved, and on the other hand, since the drive wheel 133 swings in the vertical direction, it can be ensured that the drive wheel 133 always maintains good contact with the ground, ensuring the normal and stable walking of the drive wheel 133.

[0073] In this embodiment, the mobile chassis 100 further includes a first elastic member 143. One end of the first elastic member 143 is connected to the chassis main body 110, and the other end of the first elastic member 143 is connected to the drive wheel 133. Optionally, the first elastic member 143 is a tension spring. Of course, the first elastic member 143 can also be a compression spring, as long as it is ensured that the force exerted by the first elastic member 143 on the drive wheel 133 is a tensile force.

[0074] Please refer to Figure 11 and Figure 12In one embodiment, the driving wheel assembly 130 further includes a mounting seat 140, the driving wheel 133 is mounted on the mounting seat 140, and the mounting seat 140 is rotatably connected to the chassis body 110. Specifically, the structure and shape of the mounting seat 140 can be various, and are not particularly limited. In order to facilitate installation, the mounting seat 140 can be detachably connected, for example, the mounting seat 140 includes a first seat body and a second seat body, and the first seat body and the second seat body are enclosed to form an installation space for the driving wheel assembly 130 to be installed. By installing the driving wheel assembly 130 inside the mounting seat 140, on the one hand, the driving wheel assembly 130 is protected, and on the other hand, the installation space inside the mobile chassis 100 can be saved, thereby realizing the miniaturization of the mobile chassis 100. Among them, the first seat body and the second seat body can be fixedly connected by snapping, fixedly connected by screws, or fixedly connected by plugging, etc., and the fixing method of the first seat body and the second seat body is not limited.

[0075] There are also various ways to rotatably connect the mounting base 140 to the chassis body 110. For example, the mounting base 140 is provided with a rotating shaft 141, and the chassis body 110 is provided with an axial hole 121 for rotatably mounting the rotating shaft 141; or, the mounting base 140 is provided with an axial hole 121, and the chassis body 110 is provided with a rotating shaft 141. Figure 12 In this embodiment, a shaft sleeve is provided on the lower side of the mounting seat 140, a rotating shaft 141 is provided in the shaft sleeve, and an axial hole 121 for installing the rotating shaft 141 is provided on the chassis body 110. The rotating shaft 141 is rotatably installed in the axial hole 121. In this way, the mounting seat 140 can swing up and down around the rotating shaft 141, thereby driving the driving wheel assembly 130 to swing up and down.

[0076] Of course, in another embodiment, the mobile chassis 100 includes a mounting frame (not shown), the driving wheel assembly 130 is mounted on the mounting frame, and the mounting frame is rotatably connected to the chassis body 110. The mounting frame can also have a variety of structures, which are not specifically limited here, as long as it can play the role of mounting and fixing the driving wheel assembly 130 and driving the driving wheel assembly 130 to move up and down. In this embodiment, since the driving wheel assembly 130 is mounted on the mounting frame, the driving wheel assembly 130 is exposed outside, which is not conducive to effectively protecting the driving wheel assembly 130.

[0077] See also Figure 10 , Figure 11 and Figure 12, in order to better install the suspension device, in one embodiment, the mobile chassis 100 further includes a fixed seat 120, the fixed seat 120 is installed on the chassis main body 110, and the mounting seat 140 is arranged in the fixed seat 120 and is rotatably connected to the fixed seat 120. Specifically, the interior of the fixed seat 120 is hollow and the lower end is open, and the mounting seat 140 is installed at the lower end of the fixed seat 120. Shaft holes 121 are provided on opposite side plates of the fixed seat 120, and both ends of a rotating shaft 141 on the mounting seat 140 are respectively installed in the two shaft holes 121. With such an arrangement, on the one hand, the rotational connection between the mounting seat 140 and the fixed seat 120 can be achieved, and on the other hand, it is beneficial to ensure the stability of the mounting seat 140 during rotation.

[0078] Among them, an installation opening 122 is provided on the fixed seat 120, the first elastic member 143 is installed at the installation opening 122, one end of the first elastic member 143 is fixed to the fixed seat 120, and the other end is fixed to the mounting seat 140. Specifically, the installation opening 122 is provided at the top of the fixed seat 120 and is communicated with the interior of the fixed seat 120. Since the first elastic member 143 is arranged at the installation opening 122, the first elastic member 143 can be effectively limited. In order to fix the first elastic member 143, a first fixing portion 142 is provided on the mounting seat 140, and a second fixing portion 123 opposite to the first fixing portion 142 is provided on the fixed seat 120. One end of the first elastic member 143 is fixed to the first fixing portion 142, and the other end is fixed to the second fixing portion 123. The first fixing portion 142 can be specifically arranged at the top of the mounting seat 140 so that the first fixing portion 142 can extend out of the installation opening 122 for one end of the first elastic member 143 to be fixed. The installation opening 122 can extend along the length direction of the fixed seat 120, and the second fixing portion 123 is located on one side of the installation opening 122 along the length direction.

[0079] Further, two fixing rings are respectively provided at both ends of the first elastic member 143, and the two fixing rings are respectively mounted on the first fixing portion 142 and the second fixing portion 123, so as to prevent the first elastic member 143 from detaching from the fixing portions (the first fixing portion 142 and the second fixing portion 123). Additionally, to prevent the first elastic member 143 from falling off the fixing portions, the first fixing portion 142 and the second fixing portion 123 may respectively extend away from each other to form bending portions. That is, the first fixing portion 142 and the second fixing portion 123 are both in an inverted L shape. Thus, when the mobile chassis 100 travels on a pitted road surface, the mounting seat 140 swings downward around the rotating shaft 141, and the second fixing portion 123 on the mounting seat 140 will drive one end of the first elastic member 143 to move away from the other end, thereby stretching the first elastic member 143; when the mobile chassis 100 passes through the pitted road surface and then travels on a flat surface, the mounting seat 140 can be reset to the initial position under the elastic recovery action of the first elastic member 143, so as to ensure that the mobile chassis 100 can travel better.

[0080] In one embodiment, the structure of the drive wheel assembly 130 is described. Please refer to Figure 12 , the drive wheel assembly 130 further includes a drive motor 131 and a gear set 132. The drive motor 131 is connected to the drive wheel 133 through the gear set 132 to drive the drive wheel 133 to rotate. Among them, the drive motor 131 is mounted on the mounting seat 140, and the gear set 132 is mounted on the mounting seat 140. The gear set 132 at least includes a first gear 1321 and a second gear 1322. The first gear 1321 meshes with the second gear 1322. The drive shaft of the drive motor 131 is connected to the first gear 1321, and the drive wheel 133 is connected to the second gear 1322.

[0081] In this embodiment, the drive motor 131 drives the drive wheel 133 to rotate through the gear set 132, and then drives the mobile chassis 100 to move forward by itself. The gear set 132 at least includes two gears, namely the first gear 1321 and the second gear 1322. The first gear 1321 is connected to the motor shaft of the drive motor 131, and the second gear 1322 is linked to the drive wheel 133. In this way, when the drive motor 131 rotates, it can drive the first gear 1321 to rotate and drive the second gear 1322 to rotate. The rotation of the second gear 1322 can drive the drive wheel 133 to rotate. To enable the drive wheel 133 to obtain a suitable rotation speed, the gear set 132 may further include three, four or more gears, which are not specifically limited herein and can be selected and designed according to actual needs.

[0082] Please refer to again Figure 4 and Figure 5 , in one embodiment, the number of the driving wheel assemblies 130 is two, and the two driving wheel assemblies 130 are respectively arranged on opposite sides (such as the left side and the right side) of the chassis main body 110. By arranging the two driving wheel assemblies 130, the driving force of the mobile chassis 100 can be improved, and at the same time, it can be ensured that the mobile chassis 100 remains stable during the movement process, and the mobile chassis 100 is prevented from tipping over. It can be understood that in other embodiments, the number of the driving wheel assemblies 130 can also be one, three or more. It can be designed and selected according to actual use needs. When the number of the driving wheel assemblies 130 is one, the driving wheel assembly 130 can be arranged in the middle of the chassis main body 110.

[0083] In one embodiment, please refer to Figure 13 , Figure 14 and Figure 15 , the first support wheel set 150 includes a bracket 151, a support wheel 152, and an auxiliary wheel 154. The support wheel 152 is installed on the bracket 151; the auxiliary wheel 154 is installed on the bracket 151. Among them, the auxiliary wheel 154 is located in front of the support wheel 152, so that the auxiliary wheel 154 can contact the convex ground first. The lower edge of the auxiliary wheel 154 is higher than the lower edge of the support wheel 152. The auxiliary wheel 154 can be fixedly connected to the bracket 151, that is, the auxiliary wheel 154 cannot move relative to the bracket 151. Of course, the auxiliary wheel 154 can also be movably connected to the bracket 151, that is, the auxiliary wheel 154 can swing relative to the bracket 151, and no specific limitation is made. In this embodiment, by making the lower edge of the auxiliary wheel 154 be above the lower edge of the support wheel 152, when the mobile chassis 100 crosses the obstacle convex platform, the auxiliary wheel 154 can be used as a fulcrum wheel that preferentially contacts the convex platform surface, playing a role in reducing friction and strengthening the obstacle-crossing guidance.

[0084] In this embodiment, the first support wheel set 150 further includes an auxiliary wheel frame 153. The auxiliary wheel frame 153 is connected to the bracket 151 and can swing relative to the bracket 151; the auxiliary wheel 154 is rotatably arranged on the auxiliary wheel frame 153. It can be understood that the auxiliary wheel 154 can swing along with the swing of the auxiliary wheel frame 153. There are various connection methods between the auxiliary wheel frame 153 and the bracket 151. For example, please refer to Figure 15, for example but not limited to, a swing shaft 156 is provided on the auxiliary bracket 151, and a mounting hole for mounting the swing shaft 156 is provided on the bracket 151. Specifically, the auxiliary wheel carrier 153 includes two opposite side plates and a connecting plate connecting the two side plates. The auxiliary wheel 154 is disposed between the two side plates and rotatably connected to the two side plates; two first mounting holes are correspondingly provided on the two side plates, and both ends of the swing shaft 156 are respectively inserted into the two first mounting holes. Two second mounting holes are also correspondingly provided on the bracket 151, and both ends of the swing shaft 156 are respectively rotatably connected to the two second mounting holes.

[0085] Furthermore, the first support wheel set 150 further includes a rotating shaft 157 and a rotating bearing 158. The rotating shaft 157 is connected to the bracket 151; the rotating bearing 158 is connected to the chassis main body 110, and the rotating bearing 158 is in rotational cooperation with the rotating shaft 157. In this way, the rotating shaft 157 can rotate relative to the rotating bearing 158, thereby driving the bracket 151 and the support wheel 152 to rotate, so as to achieve the steering function. That is to say, the support wheel 152 can function as a universal wheel. In addition, the auxiliary wheel carrier 153 is connected to the bracket 151 and can swing up and down relative to the bracket 151. The auxiliary wheel 154 is mounted on the auxiliary wheel carrier 153, so that the auxiliary wheel 154 can swing up and down relative to the bracket 151. When the mobile chassis 100 crosses an obstacle ground protrusion, the auxiliary wheel 154 can swing upward, so as to fit well with the protrusion ground, further improving the obstacle-crossing ability of the mobile chassis 100 and ensuring the normal walking of the mobile chassis 100. At the same time, the lower edge of the auxiliary wheel 154 is located above the lower edge of the support wheel 152, so that during the process of the mobile chassis 100 crossing an obstacle protrusion, the auxiliary wheel 154 can serve as a fulcrum wheel that preferentially contacts the protrusion surface, playing a role in reducing friction and strengthening obstacle-crossing guidance.

[0086] In an embodiment, the first support wheel set 150 further includes a second elastic member 155. One end of the second elastic member 155 is connected to the auxiliary wheel carrier 153, and the other end is connected to the bracket 151. By providing the second elastic member 155, on the one hand, it can play a role in hanging and supporting the auxiliary wheel carrier 153, and on the other hand, it can also play a role in resetting the auxiliary wheel carrier 153.

[0087] Such as Figure 14As shown, the bracket 151 is provided with an installation opening 1511, and the auxiliary wheel bracket 153 is provided with a third fixing portion 1531. The third fixing portion 1531 extends out of the installation opening 1511 for fixing one end of the second elastic member 155. Specifically, the top of the bracket 151 is provided with the installation opening 1511, and the third fixing portion 1531 is provided at the top of the auxiliary wheel bracket 153, so that the third fixing portion 1531 can extend out of the installation opening 1511 from bottom to top for fixing one end of the second elastic member 155. Among them, the second elastic member 155 may include a spring, an elastic column, an elastic sleeve or other elastic structures, etc. The third fixing portion 1531 may be in an inverted L shape, which can prevent one end of the second elastic member 155 from detaching from the third fixing portion 1531. In practical applications, the third fixing portion 1531 may also be in a cap shape or a column shape, etc., without specific limitation. In addition, the bracket 151 is further provided with a fourth fixing portion 1514, and the structure of the fourth fixing portion 1514 and the third fixing portion 1531 may be the same or different. Optionally, the fourth fixing portion 1514 may also be in an inverted L shape, a cap shape or a column shape, etc.

[0088] In this embodiment, the number of the second elastic members 155 is two, and the two second elastic members 155 are respectively located on opposite sides of the bracket 151 (as Figure 13 shown). Correspondingly, the number of the third fixing portion 1531 and the fourth fixing portion 1514 is also two. By providing two second elastic members 155, the resetting ability of the auxiliary wheel bracket 153 can be enhanced, and at the same time, it can be ensured that the auxiliary wheel bracket 153 does not shift to one side during the swinging process. Of course, in other embodiments, the number of the second elastic members 155 may also be one, three or more, etc. It can be selected and designed according to actual needs.

[0089] Further, please refer to Figure 14 、 Figure 15 and Figure 16, in one embodiment, a guiding portion 1513 inclined backward is provided at the bottom of the bracket 151. The auxiliary wheel 154 is installed at the guiding portion 1513, and the supporting wheel 152 is disposed at the rear side of the guiding portion 1513. The bracket 151 is generally annularly arranged, and the guiding portion 1513 is specifically a guiding inclined surface formed at the bottom of the bracket 151. Both the supporting wheel 152 and the auxiliary wheel 154 are located below the bracket 151. The auxiliary wheel 154 is arranged corresponding to the guiding portion 1513, and the supporting wheel 152 is located at the rear side of the guiding portion 1513. In this embodiment, by providing the guiding portion 1513 and arranging the auxiliary wheel 154 at the position of the guiding portion 1513, when the moving chassis 100 passes over a ground boss, the auxiliary wheel 154 can better contact the boss surface, playing a good role in obstacle-crossing guidance.

[0090] In another embodiment, please refer to Figure 4 , Figure 9 and Figure 10 , the structure of the second supporting wheel group 160 is different from that of the first supporting wheel group 150. The second supporting wheel group 160 is a universal wheel assembly. That is, compared with the structure of the first supporting wheel group 150, the second supporting wheel group 160 does not include the structure of the auxiliary wheel bracket 153 and the auxiliary wheel 154. The second supporting wheel group 160 can achieve the functions of support and steering, and will not be elaborated here.

[0091] To further improve the stability of the moving chassis 100 during movement, the supporting wheel assembly may include one first supporting wheel group 150 and two second supporting wheel groups 160, or may include one second supporting wheel group 160 and two first supporting wheel groups 150, or may also include three first supporting wheel groups 150 or three second supporting wheel groups 160. In this embodiment, the supporting wheel assembly includes one first supporting wheel group 150 and two second supporting wheel groups 160. The first supporting wheel group 150 is disposed at the middle of the front edge of the chassis main body 110, and the two second supporting wheel groups 160 are respectively disposed at both sides of the rear edge of the chassis main body 110. In this way, by arranging the three supporting wheel assemblies at the outermost triangular positions of the chassis main body 110, the overall stability is effectively improved. At the same time, by disposing the first supporting wheel group 150 at the middle of the front edge of the chassis main body 110, when the moving chassis 100 passes over a ground boss, the auxiliary wheel 154 of the first supporting wheel group 150 can preferentially contact the boss obstacle, thereby strengthening the role of obstacle-crossing guidance.

[0092] Please refer to Figure 7 , Figure 17 , Figure 18 and Figure 19, in one embodiment, the mobile chassis 100 further includes a battery pack assembly 170, and the battery pack assembly 170 is disposed within the mobile chassis 100. It can be understood that the battery pack assembly 170 can provide power for the mobile chassis 100. Since there are potential safety hazards of fire or explosion during the use of the battery pack assembly 170, in order to prevent the battery pack assembly 170 from catching fire or exploding, a fire and explosion prevention design is carried out on the battery pack assembly 170. Specifically, the battery pack assembly 170 includes a battery module 171 and a protective shell 172. The battery module 171 is disposed within the protective shell 172, and a heat dissipation opening 1721 is provided on the protective shell 172. The shape of the heat dissipation opening 1721 can be a regular shape, such as circular, square, etc., or an irregular shape, without special limitation. In this embodiment, the heat dissipation opening 1721 can be disposed at the corner of the protective shell 172, or on the screw fixing portion 1722 of the protective shell 172, or on the side plate of the protective shell 172, without special limitation here. It should be noted that the corners and the screw fixing portion 1722 of the protective shell 172 are both processing technology openings, rather than specially opened heat dissipation openings 1721, so as to ensure that the battery pack assembly 170 has a good sealing and heat insulation effect.

[0093] Further, the protective shell 172 includes a flame retardant shell 173 and a metal shell 174. The heat dissipation opening 1721 includes a first heat dissipation opening provided on the flame retardant shell 173 and a second heat dissipation opening provided on the metal shell 174. Among them, the first heat dissipation opening and the second heat dissipation opening can be correspondingly arranged or staggered, without special limitation, as long as the air flow is ensured. The flame retardant shell 173 is specifically a plastic shell with flame retardant properties. For the convenience of disassembly and assembly, the flame retardant shell 173 is arranged in a split manner. Specifically, the flame retardant shell 173 includes a flame retardant upper shell and a flame retardant lower shell, and the flame retardant upper shell and the flame retardant lower shell are spliced together. Similarly, for the convenience of disassembly and assembly, the metal shell 174 can also be arranged in a split manner. Specifically, the metal shell 174 includes a metal upper shell and a metal lower shell, and the metal upper shell and the metal lower shell are spliced together.

[0094] In addition, please refer to Figure 19 , the battery module 171 includes an upper bracket 1711, a lower bracket 1712 and a plurality of battery cells 1713. The upper bracket 1711 is provided with a plurality of upper cavities, and the lower bracket 1712 is provided with a plurality of lower cavities. Each upper cavity is correspondingly arranged with a corresponding lower cavity, and each battery cell 1713 is installed in a corresponding upper cavity and lower cavity. Both the upper bracket 1711 and the lower bracket 1712 are made of flame retardant materials, which can play a good role in flame retardancy for the battery module 171.

[0095] Considering that the battery pack assembly 170 is provided inside the chassis main body 110, and the driving wheel assembly 130 and the supporting wheel assembly are provided at the bottom of the chassis main body 110. In order to prevent the battery pack assembly 170 from catching fire or exploding during charging, which may cause damage and failure of the driving wheel assembly 130 and the supporting wheel assembly, the bottom plate of the chassis main body 110 can be made of a flame-retardant board. That is to say, the flame-retardant board is made of a flame-retardant material and can achieve a good flame-retardant effect.

[0096] Please refer to again Figure 1 and Figure 2 , the present invention also provides a mobile device 300, which includes a device main body 200 and a mobile chassis 100, and the mobile chassis 100 is provided at the bottom of the device main body 200. The specific structure of the mobile chassis 100 refers to the above embodiments. Since the mobile device 300 adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0097] In the embodiments of the present invention, the mobile device 300 can be used alone or combined with other structures as a whole. For example, it can be used as a sub-device structure of an air-conditioning device and cooperate with the main-device structure of the air-conditioning device. The device main body 200 includes an air temperature adjustment module and / or an air treatment module. Among them, the structure of the air temperature adjustment module can refer to the structure of an air conditioner, and the air temperature adjustment module is mainly used to adjust the temperature of the indoor environment. The air treatment module includes at least one of a purification module, a humidification module, an aromatherapy module, a formaldehyde removal module, and a sterilization module, without specific limitation. The air treatment module is mainly used to perform air treatment such as purifying, humidifying, aromatherapy, formaldehyde removal, and sterilizing on the indoor air.

[0098] For the convenience of disassembly and assembly, the device main body 200 and the mobile chassis 100 can be detachably connected. For example, the device main body 200 and the mobile chassis 100 can be fixed together by a snap connection method, a plug connection method, or a screw connection method. Considering that the device main body 200 and the mobile chassis 100 are two independent modules, and there are independent circuit structures inside each of them. In order to connect the circuit structure inside the device main body 200 and the circuit structure inside the mobile chassis 100 into a whole and achieve the overall consistency of the internal wiring of the mobile device 300, please refer to Figure 3 , in an embodiment, a wiring part 180 can be provided at the upper end of the mobile chassis 100, and the wiring part 180 has a wiring socket 181 for the wiring terminal of the device main body 200 to be inserted.

[0099] Specifically, as Figure 2 and Figure 3As shown, the device body 200 includes a shell 210, and the shell 210 includes a shell body 211. The lower end of the shell body 211 is open, and the mobile chassis 100 is installed at the open position. The shell body 211 can have a variety of shapes, for example, the shape of the shell body 211 can be round or square, and the shape of the mobile chassis 100 is adapted to the shape of the shell body 211. The wiring part 180 is a wiring adapter plate. By setting a wiring adapter plate at the upper end of the mobile chassis 100, the circuit lead-out terminals in the mobile chassis 100 are uniformly connected to the wiring adapter plate. When the device body 200 is installed on the mobile chassis 100, the wiring terminals of the device body 200 can be easily plugged into the wiring adapter plate, so that the disassembly and assembly between the device body 200 and the mobile chassis 100 is simpler and more convenient.

[0100] Furthermore, in order to facilitate patch cord operation, the housing 210 further includes a disassembly plate 213. The housing body 211 is provided with a disassembly port 212, and the disassembly plate 213 is installed at the disassembly port 212. There are many ways to connect the disassembly plate 213 to the housing body 211, such as but not limited to, the disassembly plate 213 and the housing body 211 are detachably connected; or, the disassembly plate 213 and the housing body 211 are rotatably connected.

[0101] When the disassembly plate 213 is detachably connected to the shell body 211, for example, the disassembly plate 213 is connected to the shell body 211 by snapping, plugging or screwing, the disassembly plate 213 only needs to be removed to conveniently connect and disconnect wires. When the disassembly plate 213 is rotatably connected to the shell body 211, the disassembly plate 213 only needs to be rotated to open the disassembly opening 212 to connect and disconnect wires.

[0102] See also Figure 2 The disassembly opening 212 may be provided on the side of the shell body 211. Optionally, the disassembly opening 212 is provided on the side of the shell body 211 close to the wiring portion 180. The wiring portion 180 is provided on the edge of the chassis body 110. Thus, by providing the disassembly opening 212 close to the wiring portion 180, the user does not need to put his hand into the middle of the shell body 211, which makes it more convenient for the user to connect and remove wires.

[0103] See also Figure 3, in one embodiment, in order to prevent the wiring part 180 from protruding from the upper end surface of the mobile chassis 100, a groove 190 can be formed by recessing the upper end surface of the mobile chassis 100, and the wiring part 180 is arranged at the bottom of the groove 190. With this design, when the device main body 200 is installed on the mobile chassis 100, since the wiring part 180 is arranged in the groove 190 formed by recessing the upper end surface of the mobile chassis 100, it will not occupy the internal space of the device main body 200, thus saving the internal space of the device main body 200.

[0104] Optionally, please refer to Figure 20 , the wiring part 180 is arranged in a long strip shape, and a plurality of wiring sockets 181 are arranged on the wiring part 180, and the plurality of wiring sockets 181 are arranged at intervals along the length direction of the wiring part 180. Here, by setting the wiring part 180 in a long strip shape, it is convenient for the user to plug the wiring terminals of the device main body 200 into the plurality of wiring sockets 181 on the wiring part 180. Of course, the wiring part 180 can also be arranged in a square or circular shape, and no specific limitation is made here. There can also be many shapes for the wiring socket 181. For example, the shape of the wiring socket 181 is square and / or convex. By setting the wiring socket 181 in a square or convex shape, on the one hand, it is convenient to insert the wiring terminal of the device main body 200 into the wiring socket 181, and on the other hand, it is convenient to seal the wiring socket 181 to prevent water from entering the wiring socket and causing the wiring part 180 to be damaged and fail.

[0105] Furthermore, in one embodiment, the mobile device 300 further includes a sealing member, and the sealing member covers the wiring socket 181. There are various types of sealing members. For example, the sealing member can be a sealing cover, a sealing strip or a sealing block, etc. The sealing member mainly functions to seal the wiring socket 181 to prevent water from entering the wiring socket 181 and causing the wiring part 180 to be damaged and fail. Optionally, in order to conveniently cover the sealing member in the wiring socket 181, the sealing member can be arranged on the wiring terminal of the device main body 200, so that when the wiring terminal of the device main body 200 is inserted into the wiring socket 181, the sealing member can be covered in the corresponding wiring socket 181 at the same time, which is fast and convenient and improves the assembly efficiency.

[0106] The present invention also proposes an air conditioner, which includes a main unit and a sub-unit. The main unit includes an indoor heat exchange module, and a receiving cavity is defined in the main unit; the sub-unit is detachably installed in the receiving cavity, wherein the specific structure of the sub-unit refers to the structure of the mobile device in the above embodiment. Since the sub-unit adopts all the technical solutions of all the mobile device embodiments above, it at least has all the beneficial effects brought by the technical solutions of the above mobile device embodiments, and will not be elaborated one by one here.

[0107] The above are only alternative embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A mobile chassis, characterized in that, Comprising: A chassis main body, the bottom plate of the chassis main body being a flame retardant plate; Support wheel assemblies, mounted on the chassis main body, the support wheel assemblies including a first support wheel group and a second support wheel group arranged at intervals, the first support wheel group and the second support wheel group jointly supporting the chassis main body, the first support wheel group including a bracket, a support wheel and an auxiliary wheel, the support wheel and the auxiliary wheel being mounted on the bracket, the lower edge of the auxiliary wheel being higher than the lower edge of the support wheel; A drive wheel assembly, mounted on the chassis main body and located between the first support wheel group and the second support wheel group, the drive wheel assembly including a drive wheel and a mounting seat, the drive wheel being mounted on the mounting seat, the drive wheel being elastically movable relative to the chassis main body in the vertical direction; A fixed seat and a first elastic member, the fixed seat being mounted on the chassis main body, the mounting seat being disposed within the fixed seat and rotatably connected to the fixed seat; an installation opening is provided on the fixed seat, the first elastic member is mounted at the installation opening, one end of the first elastic member is fixed to the fixed seat, and the other end is fixed to the mounting seat; And A battery pack assembly, the battery pack assembly being disposed within the chassis main body, the battery pack assembly including a battery module and a protective shell, the battery module including an upper bracket, a lower bracket and a plurality of battery cells, the upper bracket being provided with a plurality of upper cavities, the lower bracket being provided with a plurality of lower cavities, each upper cavity corresponding to one of the lower cavities, each battery cell being mounted within a corresponding upper cavity and lower cavity, the upper bracket and the lower bracket being made of a flame retardant material; The battery module is disposed within the protective shell, the protective shell being provided with heat dissipation openings, the protective shell including a flame retardant shell and a metal shell, the heat dissipation openings including a first heat dissipation opening provided on the flame retardant shell and a second heat dissipation opening provided on the metal shell, the flame retardant shell including a spliced flame retardant upper shell and a flame retardant lower shell, the metal shell including a spliced metal upper shell and a metal lower shell.

2. The mobile chassis according to claim 1, wherein The drive wheel is swingable relative to the chassis main body in the vertical direction.

3. The mobile chassis according to claim 1, wherein The first elastic member is a tension spring.

4. The mobile chassis according to claim 1, wherein The mounting seat is provided with a first fixing portion, the fixed seat is provided with a second fixing portion opposite to the first fixing portion, one end of the first elastic member is fixed to the first fixing portion, and the other end is fixed to the second fixing portion.

5. The mobile chassis according to claim 1, characterized in that, The drive wheel assembly further includes a drive motor and a gear assembly mounted on the mounting seat, the drive motor being connected to the drive wheel through the gear assembly to drive the drive wheel to rotate.

6. The mobile chassis according to any one of claims 1 to 5, characterized in that The first support wheel group is disposed in the middle of the front side of the chassis main body.

7. The mobile chassis according to claim 1, wherein The first support wheel group further includes: An auxiliary wheel frame, connecting the bracket, the auxiliary wheel frame being swingable relative to the bracket, the auxiliary wheel being mounted on the auxiliary wheel frame.

8. The mobile chassis according to claim 7, characterized in that, The first support wheel group further includes a second elastic member, one end of the second elastic member being connected to the auxiliary wheel frame and the other end being connected to the bracket.

9. The mobile chassis according to claim 8, characterized in that The bracket is provided with an installation opening, and the auxiliary wheel bracket is provided with a third fixing portion which extends outside the installation opening for fixing one end of the second elastic member.

10. The mobile chassis according to claim 7, characterized in that, The auxiliary wheel bracket is rotatably connected to the bracket.

11. The mobile chassis according to claim 1, characterized in that, The bottom of the bracket is provided with a rearward-inclined guiding portion, and the auxiliary wheel is arranged at the guiding portion.

12. The mobile chassis according to any one of claims 1 to 5, characterized in that, The number of the second support wheel sets is two, and the two second support wheel sets are arranged at the rear side of the chassis main body.

13. A mobile device, characterized in that, Comprising: A device main body; The mobile chassis according to any one of claims 1 to 12, wherein the mobile chassis is arranged at the bottom of the device main body.

14. The mobile device according to claim 13, wherein The device main body includes an air temperature adjustment module and / or an air treatment module.

15. The mobile device according to claim 14, wherein, The air treatment module includes at least one of a purification module, a humidification module, an aromatherapy module, a formaldehyde removal module, and a sterilization module.

16. An air conditioner, characterized in that, Comprising: A main machine, the main machine includes an indoor heat exchange module, and a receiving cavity is defined in the main machine; And A sub-machine, detachably installed in the receiving cavity, and the sub-machine is a mobile device according to any one of claims 13 to 15.

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