WO2023029221A1 - Chassis assembly and air conditioner - Google Patents

Abstract

Disclosed in the present application are a chassis assembly and an air conditioner. The chassis assembly comprises: a chassis provided with a water collection tank for gathering condensate water; a limiting engaging member connected to the chassis and configured to clamp a water pumping motor; and a mounting member connected to the chassis and provided on the same side of the water collection tank as the limiting engaging member, wherein the mounting member is provided with a plurality of mounting holes, and the mounting holes are configured to be connected to a fastener passing through the water pumping motor.

Description

Chassis components and air conditioners

priority information

This application claims the priority of the Chinese patent applications filed on August 30, 2021 with the application number 202122074028.8, and the Chinese patent applications filed on September 30, 2021 with the application numbers 202122407083.4, 202122403622.7 and 202122409052.2, the entire contents of which are incorporated by reference in this application.

technical field

The present application relates to the technical field of chassis components, in particular to a chassis component and an air conditioner.

Background technique

At present, there are two main ways to install the water pumping motor of the air conditioner: the first one is to fix the water pumping motor with a sheet metal bracket, and then connect the sheet metal bracket and the chassis for placing the water pumping motor through multiple screws. The first is to complete the connection between the water pumping motor and the chassis; the second is to fix the water pumping motor with a plastic mounting bracket first, and then connect the plastic mounting bracket and the chassis with multiple screws, thus completing the water pumping motor and the chassis. connect. However, the disassembly and assembly of the above two installation methods are complicated and cumbersome, which is not conducive to controlling the production cost of the air conditioner. Moreover, when the water pumping motor of the current air conditioner drives the water pumping impeller to rotate, firstly, the accumulated water in the sump on the chassis will form splashing water droplets when hit by the water pumping impeller, and secondly, when the accumulated water is in an unstable state It is easy to form turbulent water waves, and it is easy to form splashing water droplets when the water waves beat on the tank wall of the sump. Whether it is caused by the turbulence of the water wave or the water droplets formed by the impact of the water pumping impeller, it is easy to splash on the water pumping motor, causing the water pumping motor to be damaged by the invasion of water droplets.

In the existing air conditioner, a water collecting tank is installed on the chassis, and then the condensed water generated during the operation of the indoor unit is introduced into the water collecting tank for utilization, and a water level switch is installed to detect the water level of the water in the water collecting tank, so as to avoid excessive water accumulation. The problem of too many and overflowing sumps. At present, the float of the water level switch easily interferes with the wall of the sump, and there are problems with abnormal functions. Make the float unable to work normally, and then cause the problem that the function of the water level switch fails.

application content

An object of the present application is to provide a chassis assembly, aiming at simplifying the installation process when the water pumping motor is fixed to the chassis.

Another object of the present application is to provide a chassis assembly, which aims to improve the protection of the chassis to the pumping motor, reduce the risk of functional failure of the first water level switch, or improve the installation reliability of the bolts and the chassis.

In order to realize the above-mentioned simplification of the installation process when the water pumping motor is fixed to the chassis and improve the protective effect of the chassis on the water pumping motor, the chassis components proposed in this application include:

Chassis, provided with a sump for collecting condensed water;

a limit snapping piece, connected to the chassis, and used to fasten the water pumping motor; and

The mounting part is connected to the chassis, and is arranged on the same side of the sump as the limit snapping part. Machine fastener connection.

In one embodiment, the limiting engaging member includes an engaging plate and two limiting plates respectively disposed on opposite sides of the engaging plate, the limiting plates are used to abut against the water pumping motor, and the engaging plate One side of the plywood close to the limiting plate is provided with a locking protrusion for fastening the water pumping motor, and the locking protrusion, the locking plate, and the two limiting plates together define a joint for abutting against and limiting the water pumping motor. The limit slot of the machine.

In one embodiment, the engaging protrusion is provided with a limiting surface facing the limiting groove, and a first guide inclined surface away from the limiting groove, and in the direction away from the engaging plate, the The first guiding slope extends obliquely along a direction close to the chassis.

In one embodiment, the end of the limiting plate facing away from the chassis is provided with a second guiding slope, and in the direction toward the limiting groove, the second guiding slope is inclined in a direction close to the chassis Extended settings.

In one embodiment, the engaging protrusion is disposed above the limiting plate.

In one embodiment, the engaging convex part is connected with a pressing part for the user to press and operate.

In one embodiment, the extending direction of the installation holes is parallel to the distribution direction of the two limiting plates.

In one embodiment, there are at least two installation holes, and at least two installation holes are arranged at intervals along the vertical direction.

In one embodiment, the chassis assembly further includes a water baffle connected to the chassis, the mounting piece, and the limiting fastener, and the water baffle, the limiting fastener, and the mounting piece jointly define a To accommodate the storage cavity of the pumping motor.

In one embodiment, the chassis assembly further includes a support connected to the chassis, and the support is used to support the water pumping motor so that a gap is formed between the water pumping motor and the chassis.

In one embodiment, the water pumping motor includes a motor located outside the water collection tank, and a rotating shaft drivingly connected to the motor. As for the avoidance opening, the water blocking member is connected to the rotating shaft and arranged corresponding to the avoidance opening.

In one embodiment, the distance between the water blocking member and the escape opening is at least 1.5 mm.

In an embodiment, the water blocking member is located on a side of the avoidance port away from the motor.

In one embodiment, the groove wall of the water collection tank is further provided with an escape groove for the rotating shaft to move through, the avoidance groove extends along the axial direction of the rotating shaft, and the avoidance groove has a The first groove wall of the motor, the avoidance opening is located on the first groove wall, and the water blocking member is located in the avoidance groove.

In one embodiment, the distance between the edge of the first groove wall and the escape opening is at least 3.5 mm.

In one embodiment, the equivalent diameter of the avoidance groove increases gradually along the direction away from the avoidance port.

In one embodiment, the escape opening is provided with an upward notch, and the escape groove is provided with an upward opening, and the opening communicates with the notch.

In one embodiment, the water retaining member is a water retaining ring sheathed on the rotating shaft; and/or the water retaining member is made of elastic material.

In one embodiment, a plane perpendicular to the axis of the rotating shaft is used as a reference plane, and the projection of the outer contour of the water retaining member on the reference plane is at least partially located on the reference plane of the escape port outside of the projection.

In order to reduce the risk of functional failure of the first water level switch, the present application also proposes a chassis assembly, wherein the chassis assembly includes:

a chassis having a water tank; and

The water level switch is set in the water tank and includes a float for following the water surface in the water tank;

The shortest distance between the outer edge of the float and the tank side wall of the water tank is greater than or equal to 7 millimeters; and/or, the distance between the lower limit position of the float and the bottom wall of the water tank is greater than or equal to equal to 6 mm.

In one embodiment, the bottom wall of the water holding tank is provided with a sedimentation tank corresponding to the lower end of the water level switch.

In one embodiment, the depth of the sedimentation tank ranges from 2 mm to 3 mm.

In one embodiment, a fixed portion extends upward from the chassis, and the water level switch is installed on the fixed portion.

In one embodiment, the water level switch further includes a mounting seat for the float to be mounted on, the fixing part has a first side facing the float, the first side is provided with a positioning protrusion, and the mounting seat A positioning hole matched with the positioning protrusion is provided.

In one embodiment, the mounting seat includes a first mounting plate and a second mounting plate intersecting, the float is mounted on the first mounting plate, the positioning hole is provided on the second mounting plate, A side edge of the second mounting plate extends toward the fixing portion with a first flange, and the first flange and the second mounting plate jointly define a slot for locking the fixing portion.

In one embodiment, an arc-shaped through groove is provided on the outer periphery of the positioning protrusion.

In one embodiment, the water level switch includes a first water level switch and a second water level switch for detecting different water levels in the water holding tank, and the fixed part includes The first fixing part and the second fixing part where the switch is installed, the first water level switch is provided with a fool-proof structure, and the first fixing part is provided with a matching structure matching the fool-proof structure.

In one embodiment, the matching structure is a limiting protrusion provided on the first side surface, and the fool-proof structure is a relief notch capable of inserting the limiting protrusion.

In one embodiment, the first fixing part and the second fixing part are located on the same side of the water holding tank and are arranged parallel to each other.

In order to realize the installation reliability of the lifting bolt and the chassis, the application also proposes a chassis assembly, including:

chassis; and

The bolt includes a fixed section connected with a screw section, the fixed section is injection-molded with the chassis, the peripheral surface of the fixed section is provided with a limiting protrusion, and the limiting protrusion has a shape along the axial direction of the bolt. Two injection molding surfaces are distributed and away from each other, and the chassis covers the two injection molding surfaces.

In one embodiment, the limiting protrusion is arranged in a shape of a non-rotating body with respect to the axis of the bolt.

In one embodiment, the limiting protrusion is in the shape of a polygonal column surrounding the fixing section; alternatively, the limiting protrusion is in the shape of an elliptical column surrounding the fixing section.

In one embodiment, the chassis assembly further includes a sealant layer, and the sealant layer is provided at the boundary between the screw segment and the chassis.

In one embodiment, the thickness of the sealant layer is greater than or equal to 0.5mm.

In one embodiment, the peripheral surface of the fixing section is further provided with a plurality of limiting ribs extending along the axial direction of the bolt, and the plurality of limiting ribs are spaced apart in the circumferential direction of the fixing section. distributed, and are all located on the side of the limiting protrusion away from the screw segment.

In one embodiment, the circumferential surface of the fixed section is further provided with a limiting sinker, the limiting sinking is located on the side of the limiting protrusion away from the screw segment, and is connected with the limiting protrusion interval.

In one embodiment, the limit sinking groove is in the shape of a ring extending along the circumference of the fixing section.

In one embodiment, at least two limiting sinking grooves are provided on the peripheral surface of the fixing section, and the two limiting sinking grooves are located on the side of the limiting protrusion away from the screw segment, and arranged at intervals in the axial direction of the bolts.

The technical solution of the present application only needs two installation steps to complete the installation and fixation between the water pumping motor and the chassis, which significantly simplifies the installation process when the water pumping motor is fixed to the chassis, thereby improving the assembly efficiency of the water pumping motor and reducing the water pumping power. The assembly cost of the air conditioner, thereby reducing the production cost of the air conditioner. Secondly, the technical solution of the present application directly utilizes the structure of the pumping motor itself to be fastened to the limit clip, and allows the fastener to be threaded to be fixed on the mounting part. Compared with the pumping motor in the prior art, it needs to be connected with The technical solution for fixing the sheet metal bracket or the plastic mounting bracket at least saves the sheet metal bracket or the plastic mounting bracket, and simplifies the installation structure, thereby reducing the production cost of the air conditioner. Furthermore, the installation and fixation effect of the limit snap-fitting on the pumping motor can replace the original installation and fixation of at least one fastener, thereby reducing the amount of fasteners used and not only saving the use of fasteners Cost, thereby reducing the production cost of the air conditioner, and can also reduce the overall weight of the air conditioner. In addition, the position-limiting engaging parts play a role of pre-assembly, which is convenient for workers to operate the alignment between the water pump motor and the installation hole, thereby improving assembly efficiency, reducing the assembly cost of the water pump motor, and further reducing the production cost of the air conditioner.

The water baffle set corresponding to the avoidance opening can block the water droplets splashed from the water collection tank, thereby reducing the probability of water droplets splashing on the motor through the avoidance opening, thereby reducing the risk of damage to the motor due to flying water intrusion. Specifically, the rotating shaft of the water-feeding motor extends into the sump through the avoidance opening, so as to drive the water-feeding impeller located in the sump to carry out the water-feeding operation. When the water pumping impeller hits the accumulated water in the sump, it will not only form splashing water droplets, but also make the accumulated water form turbulent water waves. And when the water waves hit the edge of the escape opening, the accumulated water may overflow over the avoidance opening and float towards the motor. Whether it is splashed water droplets or water overflowing the avoidance port, it may cause unnecessary damage to the water pumping motor, and the use of the water baffle can effectively block the water on the side of the water baffle away from the motor, thereby The motor plays a protective role.

By limiting the minimum safety gap between the float and the side wall and bottom wall of the sump, even if the water level switch is abnormal, the float will not easily interfere with the side wall or bottom wall of the sump, causing the float to fail. The problem of normal operation, thereby reducing the risk of failure of the function of the first water level switch under abnormal conditions. It is understandable that the process from the factory to the installation and use of the air conditioner includes but is not limited to warehousing and transportation, road transportation, and installation and fixing, and the air conditioner may shake abnormally during these links, resulting in failure of the water switch. Abnormal position deviation of the float causes frictional interference between the float and the side wall or bottom wall of the sump, causing the float to stagnate in the abnormal position and cannot be recovered, which in turn leads to the problem that the float cannot work normally. Moreover, the water level switch is usually located in the outdoor unit of the air conditioner, and it is not easy to check whether it is in a normal position, that is, it is not easy to find out the failure of the water level switch in time. Therefore, it is necessary to limit the minimum safety gap between the float and the tank side wall and the bottom wall of the sump to ensure that the water level switch can still work normally even if it encounters abnormal conditions, thereby reducing the risk of failure of the first water level switch.

By setting the limit protrusion on the peripheral surface of the fixed section of the bolt, when the fixed section and the chassis are injection-molded, the chassis can be covered on the two injection molded parts that are distributed along the axial direction of the bolt and deviate from each other on the limit protrusion. surface. In this way, the injection-molded chassis covers the limiting convex part as a whole, so that the bolt can be restricted from moving up and down by the limiting convex part, and the contact area between the bolt and the chassis is also increased, which can avoid the vibration caused by the compressor. The bolts are loose and fall off, which greatly improves the installation reliability of the bolts and the chassis. Moreover, when the chassis completely covers the position-limiting protrusion, the situation that the position-limiting protrusion is exposed outside can be avoided, and the chassis can be used to effectively protect the position-limiting protrusion and the fixed section to prevent the position-limiting protrusion from being corroded.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative effort.

FIG. 1 is a first structural schematic diagram of an embodiment of the chassis assembly of the present application;

Fig. 2 is a partial enlarged view of the chassis assembly at A in Fig. 1;

Fig. 3 is a partial enlarged view of the chassis assembly at B in Fig. 2;

Fig. 4 is a second structural schematic diagram of the chassis assembly in Fig. 1;

Fig. 5 is a partial enlarged view of the chassis assembly at C in Fig. 4;

Fig. 6 is a partial enlarged view of the chassis assembly at D in Fig. 5;

Fig. 7 is a schematic structural view of the pumping motor in Fig. 4;

Fig. 8 is a third structural schematic diagram of the chassis assembly in Fig. 4;

Fig. 9 is a structural schematic diagram of the chassis in Fig. 8;

Figure 10 is a partial enlarged view of the chassis at E in Figure 9;

Fig. 11 is a schematic structural view of another embodiment of the chassis assembly of the present application in Fig. 1;

Fig. 12 is another structural schematic diagram of the chassis assembly in Fig. 11;

Fig. 13 is a schematic structural view of the first water level switch (water level switch) in Fig. 12;

Fig. 14 is a schematic structural view of the chassis in Fig. 11;

Figure 15 is a partial enlarged view of the chassis at F in Figure 14;

Fig. 16 is a schematic structural diagram of another embodiment of the chassis assembly of the present application;

Figure 17 is a cross-sectional view of the chassis assembly at X-X in Figure 19;

Figure 18 is a partial enlarged view of the chassis assembly at G in Figure 17;

Fig. 19 is a schematic structural view of the bolt in Fig. 17;

Figure 20 is a partial enlarged view of the bolt at J in Figure 19;

Fig. 21 is another structural schematic diagram of the bolt in Fig. 19 .

Explanation of reference numbers:

label	name	label		name
100	chassis	204	motor
101	Sump	205	shaft

102	storage cavity	206	water retaining piece
103	Avoidance	300	water impeller
104	avoidance slot	400	water level switch
105	first wall	401	float
106	second wall	402	first water level switch
107	to open	403	Second water level switch
108	gap	404	Fool-proof structure
109	guide chamfer	410	fixed part
110	Limit snap	411	first fixed part
111	Limit slot	412	second fixed part
112	Clipboard	413	first side
113	limit plate	414	Locating convex part
114	Engagement convex part	415	Arc slot
115	limit surface	416	Matching structure
116	first guide slope	420	mount
117	second guide slope	421	positioning hole
118	pressing part	422	first mounting plate
120	Mount	423	Second mounting plate
121	Mounting holes	424	first flanging
131	water flap	425	card slot
132	supporting item	426	second flanging
140	sink	500	bolt
150	give way to the wall	501	fixed segment
151	The first reinforcement flange	502	Limiting protrusion
152	The second reinforcement flange	503	Injection surface
200	water motor	504	Limit rib
201	case	505	screw section
202	card firmware	506	sealant layer
203	Installation via	507	limit sink

The realization, functional features and advantages of the present application will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiment of the present application, the directional indications are only used to explain the position in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes, and cannot be interpreted as indications or hints Its relative importance or implicitly indicates the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the meaning of "and/or" appearing in the whole text includes three parallel schemes, taking "A and/or B" as an example, including scheme A, scheme B, or schemes that both A and B satisfy. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present application.

At present, there are two main ways to install the water pumping motor of the air conditioner: the first one is to fix the water pumping motor with a sheet metal bracket, and then connect the sheet metal bracket and the chassis for placing the water pumping motor through multiple screws. The first is to complete the connection between the water pumping motor and the chassis; the second is to fix the water pumping motor with a plastic mounting bracket first, and then connect the plastic mounting bracket and the chassis with multiple screws, thus completing the water pumping motor and the chassis. connect. However, the disassembly and assembly of the above two installation methods are complicated and cumbersome, which is not conducive to controlling the production cost of the air conditioner.

In addition, when the water pumping motor of the current air conditioner drives the water pumping impeller to rotate, firstly, the water in the sump on the chassis will form splashing water droplets when hit by the water pumping impeller, and secondly, when the accumulated water is in an unstable state, it is easy to A turbulent water wave is formed, and the water wave beats on the tank wall of the sump to easily form splashing water droplets. Whether it is caused by the turbulence of the water wave or the water droplets formed by the impact of the water pumping impeller, it is easy to splash on the water pumping motor, causing the water pumping motor to be damaged by the invasion of water droplets.

In view of this, the application proposes a chassis assembly, referring to Figures 1 to 4, in an embodiment of the application, the chassis assembly includes:

The chassis 100 is provided with a sump 101 for collecting condensed water;

The limiting engaging part 110 is connected to the chassis 100 and is used to fasten the water pumping motor 200; and

The mounting part 120 is connected to the chassis 100, and is arranged on the same side of the sump 101 as the limit snapping part 110. Fastener connection.

In the technical solution of the present application, the water pumping motor 200 is pre-assembled by using the stopper 110 first, and then the water pumping motor 200 is pierced by fasteners to be connected with the installation part 120 to complete the final assembly. Specifically, when workers on the production line or after-sales maintenance workers install the water pumping motor 200, they first snap the water pumping motor 200 directly onto the limit engaging member 110, so that the water pumping motor 200 and the chassis 100 have a preliminary installation relationship. Then make the fastener pass through the water pumping motor 200 and connect to the mounting hole 121 on the mounting part 120 . Only these two steps are needed to complete the installation and fastening between the water pumping motor 200 and the chassis 100 . Correspondingly, when workers on the production line or after-sales maintenance workers want to disassemble the water pumping motor 200, they only need to dismantle the fasteners first, and then let the water pumping motor 200 disengage the fastening relationship of the limiting fastener 110. The technical solution of the present application only needs two installation steps to complete the installation and fixation between the water pumping motor 200 and the chassis 100, which significantly simplifies the installation process when the water pumping motor 200 is fixed to the chassis 100, thereby improving the assembly of the water pumping motor 200 efficiency, reduce the assembly cost of the water pumping motor 200, and then reduce the production cost of the air conditioner. Secondly, the technical solution of the present application directly utilizes the structure of the water pumping motor 200 itself to be fastened to the limit engaging member 110, and the fastener is passed through to be fixed on the mounting part 120. Compared with the water pumping motor in the prior art 200 needs to be fixed with the sheet metal bracket or the technical solution of the plastic installation bracket first, which at least saves the sheet metal bracket or the plastic installation bracket, and simplifies the installation structure at the same time, thereby reducing the production cost of the air conditioner. Furthermore, the installation and fixation effect of the limiting engaging member 110 on the water pumping motor 200 can replace the original installation and fixation function of at least one fastener, thereby reducing the amount of fasteners used, not only saving fasteners The use cost of the air conditioner, thereby reducing the production cost of the air conditioner, can also reduce the overall weight of the air conditioner. In addition, the stopper 110 serves as a pre-assembly function, which is convenient for workers to align the water pump motor 200 with the installation hole 121, thereby improving assembly efficiency, reducing the assembly cost of the water pump motor 200, and reducing the production of the air conditioner. cost.

Referring to Fig. 2 and Fig. 3, in one embodiment, the limiting clip 110 includes a clipping plate 112, and two limiting plates 113 respectively arranged on opposite sides of the clipping plate 112, the limiting plates 113 are used to abut against the punching For the water motor 200, the side of the engaging plate 112 close to the limiting plate 113 is provided with an engaging convex portion 114 for clamping and fixing the water motor 200, and the engaging convex portion 114, the engaging plate 112, and the two limiting plates 113 are jointly defined There is a limit slot 111 for abutting against and defining the water pumping motor 200 . First, utilize the engagement plate 112 and the engagement protrusion 114 on it to abut against and limit the water pumping motor 200 so that it will not come out along the assembly direction, and then use the two limiting plates 113 to abut together to limit the water pumping motor 200 so that It will not send position offset along the direction perpendicular to the assembly direction, so as to play the role of pre-assembly, so that the position state of the pumping motor 200 when it is clamped in the limit slot 111 is different from the position after final assembly. The status tends to be consistent. In addition, the limiting groove 111 can effectively improve the vibration and noise problem generated by the water pumping motor 200 when the water pumping motor 200 is running by limiting the positional deviation of the water pumping motor 200 in at least two directions.

Referring to FIG. 2 and FIG. 3 , in one embodiment, the engaging protrusion 114 is provided with a limiting surface 115 facing the limiting groove 111 and a first guide inclined surface 116 away from the limiting groove 111 . In terms of direction, the first guiding slope 116 extends obliquely along a direction approaching the chassis 100 . The setting of the first guide inclined surface 116 is beneficial to the operation when the water pumping motor 200 snaps into the limiting groove 111 along the assembly direction, and can play a guiding role, so that workers do not need to get between the water pumping motor 200 and the limiting groove 111 first. Accurate alignment and re-engagement are achieved, which is conducive to improving assembly efficiency, and at the same time can reduce the operating force required for engagement, thereby reducing the labor intensity of workers.

In order to better limit the water pumping motor 200 in the limiting groove 111 and prevent it from easily falling out of the limiting groove 111, in one embodiment, the angle between the limiting surface 115 and the engaging plate 112 is set to 50° ° to 90°. If the included angle between the limiting surface 115 and the engaging plate 112 is set too small, the pumping motor 200 will easily slip out along the limiting surface 115 under a small force, resulting in contact with the limiting engaging member 110. The card-solid relationship between is invalid. It can be understood that at least it is necessary to overcome the force that has a tendency to break away from the limiting groove 111 caused by the vibration of the water pumping motor 200 itself during operation, so as to avoid the limitation of the limiting groove 111 during the operation of the water pumping motor 200 If the function fails, the water pumping motor 200 will generate relatively large vibration noise, and even cause the function of the water pumping motor 200 to fail.

Referring to FIGS. 2 and 3 , in one embodiment, the end of the limiting plate 113 facing away from the chassis 100 is provided with a second guide slope 117 . The direction of the slant extension is set. The setting of the second guide inclined surface 117 is beneficial to the operation when the water pumping motor 200 snaps into the limiting groove 111 along the assembly direction, and can play a guiding role, so that workers do not need to get between the water pumping motor 200 and the limiting groove 111 first. Accurate alignment and re-engagement are achieved, which is conducive to improving assembly efficiency, and at the same time can reduce the operating force required for engagement, thereby reducing the labor intensity of workers.

Referring to FIG. 2 and FIG. 3 , in an embodiment, the engaging protrusion 114 is disposed above the limiting plate 113 . It can be understood that, in addition to the function of abutting and limiting the installed water pump motor 200, the two limiting plates 113 themselves also play a role in strengthening the structural strength of the engaging plate 112, that is, they support the card on one side. When the plywood 112 is elastically deformed, the force required for elastically deforming the clamping plate 112 on the other side is relatively large. Certainly, the farther the position on the engaging plate 112 from the chassis 100 is, the smaller the force required for elastic deformation occurs, and the engaging convex portion 114 is arranged above the limiting plate 113, so that the position where the engaging convex portion 114 is located The position of the clamping plate 112 is more likely to be elastically deformed, which in turn helps to reduce the operating force required for the worker to clamp the water pumping motor 200 into the limiting groove 111, that is, make the gap between the water pumping motor 200 and the limiting engaging member 110 The snap-fit installation is more labor-saving, which in turn helps to reduce the labor intensity of workers. It should be noted that the up-down direction refers to the direction perpendicular to the disk surface of the chassis 100 , and the limiting engaging part 110 and the mounting part 120 are both arranged above the chassis 100 . However, the present design is not limited thereto, and in other embodiments, the engaging protrusion may also be disposed at a flush position or below the end of the limiting plate away from the chassis.

Referring to FIG. 2 and FIG. 3 , in an embodiment, the engaging convex portion 114 is connected with a pressing portion 118 for a user to press and operate. It can be understood that in order to better limit the pumping motor 200 in the limiting groove 111 and prevent it from easily falling out of the limiting groove 111, the angle between the limiting surface 115 and the engaging plate 112 is set to 50° to 90°, which makes the operation force required to pull the water pumping motor 200 directly out of the limiting groove 111 larger. Therefore, when a worker repairs or replaces the water pumping motor 200 and needs to disassemble the water pumping motor 200, in order to reduce the operating force for the water pumping motor 200 to disengage from the limiting groove 111, the worker can apply force to the pressing part 118 to engage the convex part. The position of the engaging plate 112 where 114 is located is elastically deformed in a direction away from the water pumping motor 200, that is, the pressing portion 118 is used to break the engaging convex portion 114, and then the limiting surface 115 on the engaging convex portion 114 is in contact with the punching surface. The included angle and relative positional relationship between the water motors 200 are changed, which facilitates the removal of the water pump motor 200 from the limiting groove 111 and reduces the labor intensity of workers.

Referring to FIG. 2 , in one embodiment, the pressing portion 118 is configured as an end of the engaging plate 112 away from the chassis 100 . The engaging plate 112 extends directly above the engaging convex portion 114 to serve as the pressing portion 118, which is conducive to simplifying the structure of the limiting engaging member 110, and reducing the space occupied by the pressing portion 118 in the interior arrangement of the air conditioner, especially is the arrangement space along the direction perpendicular to the engaging plate 112 . However, this design is not limited thereto. In other embodiments, the pressing part can also be set as a pressing plate connected to the side of the engaging convex part away from the water pumping motor, and the surface of the pressing plate intersects the surface of the engaging plate. .

Referring to FIG. 2 , in one embodiment, the extending direction of the mounting holes 121 is parallel to the distribution direction of the two limiting plates 113 . It should be noted that the distribution direction of the two limiting plates 113 refers to the direction in which the two limiting plates 113 face each other, as shown by the arrows in FIG. 2 ; parallel means parallel and nearly parallel. Set the extension direction of the mounting hole 121 as the first direction, and limit the water pumping motor 200 at two different positions by the edge of the mounting hole 121 and the two limit plates 113, so that the water pumping motor 200 is less likely to move along the first direction. The position offset occurs, that is, it makes the water pumping motor 200 more stable after being installed and fixed, thereby improving the problem of vibration and noise generated when the water pumping motor 200 is running. Of course, if the second direction is set to be perpendicular to the first direction, if the size of the mounting hole 121 in the second direction matches the size of the fastener in the second direction, then the installation of the fastener and the mounting hole 121 The cooperation can also limit the water pumping motor 200 in the second direction, so that the water pumping motor 200 is not easy to shift in position along the second direction. However, the present design is not limited thereto, and in other embodiments, the extending direction of the mounting holes may also be arranged perpendicular to the distribution direction of the two limiting plates.

Referring to FIG. 2 , in one embodiment, at least two mounting holes 121 are provided, and at least two mounting holes 121 are distributed at intervals along the vertical direction. By reserving a plurality of mounting holes 121 on the mounting part 120 , the mounting part 120 can be suitable for the installation of water pumping motors 200 of different specifications, thereby improving the adaptability of the chassis components. It can be understood that the water pumping motor 200 can use multiple mounting holes 121 as fastening points, or only one of them can be selected as the fastening point, which can be freely selected according to the performance requirements of the water pumping motor 200 .

Referring to FIG. 2 , in one embodiment, the chassis assembly further includes a water baffle 131 connecting the chassis 100 , the mounting part 120 , and the limit snapping part 110 , the water baffle 131 , the limit snapping part 110 , and the mounting part 120 , and the chassis 100 jointly define a storage cavity 102 for storing the water pumping motor 200 . Without loss of generality, there is usually condensed water in the air conditioner, or other forms of water entering the interior of the air conditioner, and accumulates on the chassis 100 to form stagnant water. A water retaining wall structure is formed by the water retaining plate 131, the limit engaging part 110, and the mounting part 120, and the accumulated water is blocked outside the storage chamber 102, so that the water pumping motor 200 located in the storage chamber 102 can avoid Intruded by stagnant water, the water pumping motor 200 is further protected from abnormal operation, and the service life of the water pumping motor 200 is improved at the same time. However, the present design is not limited thereto, and in other embodiments, the outer side of the pumping motor may also be coated with a waterproof rubber sleeve.

Referring to FIG. 2 , in one embodiment, the installation hole 121 is located above the water deflector 131 . It can be understood that if the height of the installation hole 121 is lower than the height of the water baffle 131, then when the worker wants to connect the fastener to the installation hole 121, the water baffle 131 will play a hindering role, which is not conducive to fastening. Assembly of firmware.

Referring to FIG. 2 , in one embodiment, the engaging protrusion 114 is located above the water blocking plate 131 . It can be understood that if the height of the engaging convex portion 114 is lower than the height of the water retaining plate 131, which means that the height of the limiting plate 113 is also lower than the height of the water retaining plate 131, then the water retaining wall structure will be in the limit position. A gap is formed at the position of the plate 113 , resulting in a short plate effect of the bucket, which is not conducive to protecting the water pumping motor 200 . In addition, if the position of the engaging protrusion 114 is too low, it is not conducive to the elastic deformation of the water pumping motor 210 , which in turn is not conducive to the fastening installation of the water pumping motor 200 and the limiting engaging member 110 .

Referring to Fig. 2, in order to further protect the water pumping motor 200, in one embodiment, the chassis assembly further includes a support 132 connected to the chassis 100, the support 132 is used to support the water pumping motor 200, so that the water pumping motor 200 and A gap is formed between the chassis 100 . The water pumping motor 200 is supported by the support member 132, so that the water pumping motor 200 is in a state of floating above the chassis 100, which can prevent accumulated water from overflowing into the storage chamber 102 or water droplets splashing into the storage chamber 102 and being located in the storage chamber 102 The water pumping motor 200 is invaded by stagnant water, so as to further protect the water pumping motor 200 from abnormal operation, and improve the service life of the water pumping motor 200 at the same time.

Referring to FIG. 2 , in order to simplify the structure of the support member 132 while still ensuring its structural strength, in one embodiment, the support member 132 includes at least two support ribs, and the two support ribs are intersected. However, the present design is not limited thereto. In other embodiments, the supporting member may also include at least two supporting ribs parallel to each other, and the two supporting ribs are arranged at intervals along the surface of the chassis.

2 and 7, in one embodiment, the pumping motor 200 includes a housing 201 and a clip 202 connected to one side of the housing 201, and the other side of the housing 201 corresponds to the mounting hole 121 of the chassis assembly. An installation through hole 203 is provided, and the installation through hole 203 is used for the fastener to pass through freely, and the fastening member 202 is fastened to the limit fastening part 110 of the chassis assembly.

With reference to Fig. 2, Fig. 5 to 7, in one embodiment, the pumping motor 200 also includes the motor 204 that is connected to the casing 201, and the rotating shaft 205 that drives and connects the motor 204, the tank wall of the sump 101 of the chassis assembly is provided with The avoidance opening 103 is provided to allow the rotating shaft 205 to move. By setting the escape opening 103 on the tank wall of the water collection tank 101, the tank walls of the water collection tank 101 except the avoidance opening 103 can be maintained at a higher height dimension, thereby helping to intercept accumulated water in the water collection tank 101, Prevent the accumulated water in the sump 101 from overflowing the wall of the sump 101 . However, the present design is not limited thereto. In other embodiments, the pumping motor may also include a motor connected to the housing and a rotating shaft that drives the motor. Provided avoidance holes.

Referring to FIG. 2 and FIG. 5 , in one embodiment, the axial direction of the rotating shaft 205 is parallel to the extending direction of the installation hole 121 . Since the extending direction of the mounting hole 121 is arranged in parallel with the distribution direction of the two limiting plates 113, it is less likely for the pumping motor 200 to shift in position along the first direction (the extending direction of the mounting hole 121), and then the rotating shaft 205 is provided. If the axial direction of the water pumping motor 200 is parallel to the extending direction of the mounting hole 121, it can ensure that the rotating shaft 205 of the water pumping motor 200 is less likely to move axially, thereby improving the working stability of the water pumping motor 200 and improving the operation of the water pumping motor 200. Vibration and noise problems.

In one embodiment, the chassis assembly further includes a fastener for movably penetrating through the installation hole 203 and connecting to the installation hole 121 , and the fastener is configured as a self-tapping screw. Self-tapping screws are used to complete the fastening between the water pumping motor 200 and the mounting part 120. The assembly is simple and the connection is reliable. There is no need to tap the internal thread in the mounting hole 121 in advance, which is beneficial to simplify the structure of the mounting part 120 and reduce the installation cost. The manufacturing cost of the component 120 is beneficial to improve the assembly efficiency, thereby reducing the assembly cost of the air conditioner. However, the present design is not limited thereto. In other embodiments, the air conditioner may also include a fastener for movably passing through the installation hole and connecting the installation hole, and the fastener is configured as an expansion buckle or a bolt.

Referring to Fig. 4, Fig. 8 and Fig. 9, in one embodiment, the motor 204 is located on the outside of the sump 101, and the wall of the sump 101 is provided with an avoidance port 103 for the movable shaft 205 to pass through; the chassis assembly also includes a stop The water piece 206 , the water blocking piece 206 is connected to the rotating shaft 205 and is set corresponding to the escape opening 103 . Utilizing the water retaining member 206 set corresponding to the avoidance port 103, the water droplets splashed from the sump 101 can be blocked, thereby reducing the probability of water droplets splashing on the motor 204 through the avoidance port 103, thereby reducing the motor 204 being damaged by flying water. risk of damage. Specifically, the rotating shaft 205 of the water pumping motor 200 extends into the sump 101 through the avoidance opening 103 to drive the water pumping impeller 300 located in the sump 101 to carry out the water fetching operation. When the water pumping impeller 300 hits the accumulated water in the sump 101 , it will not only form splashing water droplets, but also make the accumulated water form turbulent water waves. And when the water wave slapped on the edge of the avoidance opening 103, the accumulated water may overflow the avoidance opening 103 and drift to the motor 204. Whether it is splashed water droplets or water overflowing the avoidance port 103, it may cause unnecessary damage to the water pumping motor 200, and the water retaining member 206 can be used to effectively block the water in the water retaining member 206 away from the motor 204. One side, so as to protect the motor 204. It should be noted that the avoidance opening 103 may be arranged as an avoidance notch, or may be arranged as an avoidance hole.

Referring to FIG. 5 and FIG. 6 , in an embodiment, the distance D between the water blocking member 206 and the avoidance opening 103 has a range of D≧1.5mm. It can be understood that if the distance between the water blocking member 206 and the escape opening 103 is too small, the water retaining member 206 may easily interfere with the edge of the avoidance opening 103 during the rotation of the rotating shaft 205 , thus causing damage to the edge of the water retaining member 206 or the avoidance opening 103 , and even causing abnormal functions of the water pumping motor 200 and the water pumping impeller 300 .

Referring to FIGS. 6 to 8 , in an embodiment, the water blocking member 206 is located on the side of the escape opening 103 away from the motor 204 . The water blocking member 206 is arranged on the side of the avoidance port 103 away from the motor 204, which can prevent the water droplets from splashing to the outside of the sump 101, thereby preventing the water droplets from forming accumulated water on the outside of the sump 101 and flowing to the motor 204, resulting in the intrusion of accumulated water Problem with motor 204. However, the present design is not limited thereto, and in other embodiments, the water baffle may also be located on the side of the avoidance opening close to the motor.

Referring to Fig. 5, Fig. 9 and Fig. 10, in order to further improve the protective effect of the chassis 100 on the pumping motor 200, in one embodiment, the groove wall of the sump 101 is also provided with an avoidance groove 104 for the rotating shaft 205 to move through. The avoidance groove 104 extends along the axial direction of the rotating shaft 205 , the avoidance groove 104 has a first groove wall 105 close to the motor 204 , the avoidance port 103 is located on the first groove wall 105 , and the water blocking member 206 is located in the avoidance groove 104 . Without loss of generality, whether it is caused by the turbulence of the water wave or the water droplets formed by the impact of the water pumping impeller 300, the trajectory of the water droplets flying to the avoidance port 103 is difficult to predict, that is, the water droplets flying to the avoidance port 103 present complex changeable state. And utilize the avoidance groove 104 that extends along the axial direction of rotating shaft 205, can limit the passage of part of water droplets, that is, those water droplets whose movement direction is parallel to the axis of rotating shaft 205 can pass in avoiding groove 104, and splash towards avoiding port 103 . And this part of the water droplets that can pass in the avoidance groove 104 will be blocked by the water blocking member 206 , so that they cannot splash into the avoidance opening 103 . Through the cooperation of the escape groove 104 and the water retaining member 206, the protective effect of the chassis 100 on the water pumping motor 200 is further improved. It should be noted that phase-parallel refers to parallel and near-parallel arrangements.

Referring to Figures 9 and 10, in one embodiment, the sump 101 has a relief groove wall 150 close to the motor 204, the upper edge of the relief groove wall 150 extends toward the motor 204 with a first reinforcing flange 151, and the relief groove 104 Set on the first reinforcement flange 151 . The provided first reinforcing flange 151 can strengthen the structure of the tank wall of the water collection tank 101 and facilitate the manufacture and shaping of the avoidance tank 104 . However, the present design is not limited thereto. In other embodiments, the water collection tank may also have a relief groove wall close to the motor, and a first boss is provided protruding from the relief groove wall toward the motor. For connection, the escape groove is arranged on the first boss.

Referring to FIG. 6 , in one embodiment, the distance H between the edge of the first groove wall 105 and the escape port 103 has a range of H≧3.5 mm. It can be understood that the water flying into or flowing into the avoidance groove 104 may flow into the avoidance port 103 along the groove wall of the avoidance groove 104 .

Referring to Fig. 6, Fig. 9 and Fig. 10, in one embodiment, the avoidance groove 104 also has a second groove wall 106 extending along the axial direction of the rotating shaft 205, and the second groove wall 106 intersects with the first groove wall 105. , the distance between the second groove wall 106 and the water blocking member 206 is greater than or equal to 3mm. It can be understood that if the distance between the second groove wall 106 and the water retaining member 206 is too small, the water retaining member 206 may easily collide with the second groove wall 106 in the process of rotating with the rotating shaft 205 The movement interferes, thereby causing damage to the water retaining member 206 , and even causing abnormal functions of the water pumping motor 200 and the water pumping impeller 300 .

Referring to FIG. 6 and FIG. 10 , in an embodiment, in the direction away from the escape port 103 , the equivalent diameter of the avoidance groove 104 is gradually increased. Without loss of generality, the end of the rotating shaft 205 away from the motor 204 is prone to eccentric shaking during rotation, and the farther away from the motor 204 , the greater the shaking amplitude. Therefore, the equivalent diameter of the avoidance groove 104 is set to gradually increase, which can effectively prevent the rotating shaft 205 and the parts on it from interfering with the groove wall of the avoidance groove 104 during the rotation process, thereby improving the running stability of the water pumping motor 200 sex and reliability.

In one embodiment, along the axial direction of the rotating shaft 205 of the pumping motor 200 , the value range of the draft angle δ of the second groove wall 106 is suggested to be δ≧3°. The value of the draft angle δ is 3° and above, which can effectively reduce the risk of motion interference between the water stop 206 and other components on the rotating shaft 205 and the second groove wall 106 when the rotating shaft 205 rotates eccentrically, and is also conducive to avoiding The manufacturing shape of the slot 104 .

Referring to FIG. 8 to FIG. 10 , in one embodiment, the escape opening 103 is provided with an upward notch 108 , and the avoidance groove 104 is provided with an upward opening 107 , and the opening 107 communicates with the notch 108 . The notch 108 of the avoidance opening 103 communicates with the opening 107 of the avoidance groove 104, and they are all arranged upwards to facilitate the assembly of the water pumping motor 200 from top to bottom on the chassis 100, that is, to make the rotating shaft 205 and the water retaining parts on it 206 is easier to fit into the avoidance opening 103 and the avoidance groove 104, thereby improving the assembly efficiency of the water pumping motor 200. However, the present design is not limited thereto. In other embodiments, the avoidance opening can also be set as an avoidance hole, and the water retaining plate can be provided with the avoidance hole.

Referring to FIG. 10 , in one embodiment, a second reinforcement flange 152 extends upward from the edge of the first reinforcement flange 151 close to the motor 204 , and the notch 108 of the escape opening 103 is at least partially located on the second reinforcement flange 152 . The second reinforced flange 152 provided can strengthen the structure of the first reinforced flange 151 of the sump 101, thereby reducing the risk of plastic deformation of the notch 108 of the avoidance opening 103, thereby ensuring that the rotation shaft 205 and the avoidance opening The safe distance between the edges of 103 prevents the rotating shaft 205 from interfering with the escape opening 103 during the rotation process.

Referring to FIG. 10 , in one embodiment, a guide chamfer 109 is provided on the upper edge of the notch 105 of the avoidance opening 101 . The structure of the guide chamfer 109 can play a guiding role in the process of assembling the water pumping motor 200 to the chassis 100 , so that the rotating shaft 205 can enter the escape opening 103 more easily.

Referring to FIG. 7 , in one embodiment, the water blocking element 206 is a water blocking element 206 sleeved on the rotating shaft 205 . The water retaining member 206 around the rotating shaft 205 not only has a better anti-splash effect, but also facilitates the installation of the water retaining member 206 and the rotating shaft 205, simplifies the installation structure, and reduces the production cost of the product. However, the present design is not limited thereto. In other embodiments, the water baffle can also be set as a quarter turn, a half turn, or three quarter turn around the shaft, driven by the high-speed rotating shaft, to rotate at a high speed The water baffle can form a barrier to effectively block the flying water, so as to block the flying water on the side of the water baffle away from the motor.

Referring to FIG. 6 , in one embodiment, the plane perpendicular to the axis of the rotating shaft 205 is used as the reference plane, and the projection of the outer contour of the water blocking member 206 on the reference plane is at least partially located in the projection of the avoidance opening 103 on the reference plane. outside. It can be understood that by setting the size of the water retaining member 206 larger than the size of the avoidance port 103, the area of the wall blocking the flying water formed after the water retaining member 206 rotates at a high speed is larger than the area of the avoidance port 103, that is, on the axis of the rotating shaft 205 Directionally, the barrier used to block the splashing water can completely cover the avoidance port 103, thereby more comprehensively blocking the splashing water on the side of the water retaining member 206 away from the motor 204, thereby improving the anti-splashing effect of the water retaining member 206 . However, this embodiment is not limited thereto. In other embodiments, the equivalent diameter of the water baffle may be equal to the equivalent diameter of the escape opening, or the equivalent diameter of the water baffle may be slightly smaller than the equivalent diameter of the escape opening.

In one embodiment, the material of the water blocking member 206 is elastic material. By setting the water retaining member 206 as an elastic material, it not only facilitates the installation of the water retaining member 206 and the rotating shaft 205, but also plays a buffer role in the event of a collision, that is, even if the water retaining member 206 collides with the avoidance groove during high-speed rotation The groove wall of 104, or other component parts movement interference, also is not easy to cause the damage of water retaining member 206 or other component parts. However, the present design is not limited thereto, and in other embodiments, the material of the water barrier can also be set as metal or ceramic.

In one embodiment, the material of the water blocking member 206 is one of rubber material and silicone material. The raw material cost of the rubber material or the silicone material is low, and has good elastic deformation ability, and can play a good buffering effect. However, the present design is not limited thereto, and in other embodiments, the material of the water deflector can also be set as spring steel.

In the existing air conditioner, a water collecting tank is installed on the chassis, and then the condensed water generated during the operation of the indoor unit is introduced into the water collecting tank for utilization, and a water level switch is installed to detect the water level of the water in the water collecting tank, so as to avoid excessive water accumulation. The problem of too many and overflowing sumps. At present, the float of the water level switch easily interferes with the wall of the sump, and there are problems with abnormal functions. Make the float unable to work normally, and then cause the problem that the function of the water level switch fails.

In view of this, the present application also proposes a chassis assembly. Referring to FIG. 11, FIG. 11 is a schematic structural diagram of another embodiment of the present application. At this time, the water level switch has been set in the sump. In this embodiment, the chassis 100 a water tank 140 is provided; and

The water level switch 400 is set in the water tank 140 and includes a float 401 for following the water surface in the water tank 140 to float up and down;

The shortest distance between the outer edge of the float 401 and the tank side wall of the water tank 140 is greater than or equal to 7 mm; and/or, the distance between the lower limit position of the float 401 and the bottom wall of the water tank 140 is greater than or equal to 6 mm.

In the technical solution of the present application, by limiting the minimum safety gap between the float 401 and the tank side wall and the bottom wall of the water tank 140, even if an abnormal situation occurs in the water level switch 400, the float 401 is not easy to contact with the tank of the water tank 140. The interference of the side wall or the bottom wall causes the problem that the float 401 cannot work normally, and further reduces the risk of the first water level switch 402 malfunctioning under abnormal conditions. It is understandable that the process from the factory to the installation and use of the air conditioner includes but is not limited to warehousing and transportation, road transportation, and installation and fixing, and the air conditioner may shake abnormally during these links, resulting in failure of the water switch. The problem of abnormal position deviation of the float 401 causes frictional interference between the float 401 and the tank side wall or bottom wall of the water tank 140, causing the float 401 to stagnate in the abnormal position state and cannot be recovered, which in turn leads to the problem that the float 401 cannot work normally . Moreover, the water level switch 400 is usually located in the outdoor unit of the air conditioner, and it is not easy to check whether it is in a normal position, that is, it is not easy to find out the failure of the water level switch 400 in time. Therefore, it is necessary to limit the minimum safety gap between the float 401 and the tank side wall and the bottom wall of the water tank 140, so as to ensure that the water level switch 400 can still work normally even if it encounters an abnormal situation, thereby reducing the function failure of the first water level switch 402. risks of.

In this embodiment, the bottom wall of the water holding tank 140 is provided with a sedimentation tank corresponding to the lower end of the water level switch 400 . Without loss of generality, due to the long-term exposure of the outdoor unit of the air conditioner to the outdoor environment, such as dust, lint and insects, it is easy to enter the outdoor unit of the air conditioner, and may fall into the water tank 140, and deposits in the water tank 140 sludge or other foreign matter. It can be understood that if there is silt or foreign matter on the bottom wall of the water tank 140 at the lower end of the water level switch 400, the minimum safe clearance value between the float 401 and the bottom wall during design will be reduced, that is, the float 401 will be easily separated from the silt. Or foreign objects appear frictional interference, which causes the problem that the float 401 works abnormally. And by arranging the sedimentation tank, silt or foreign matter can be deposited in the sedimentation tank, so that the minimum safety gap between the float 401 and the bottom wall of the water tank 140 can be kept at the design value for a long time, and then the first water level can be lowered. There is a risk of switch 402 malfunctioning.

In this embodiment, the depth of the sedimentation tank ranges from 2 mm to 3 mm. It can be understood that if the depth of the sedimentation tank is set too small, it will not have a good effect of accommodating the deposited sludge or foreign matter; if the depth of the sedimentation tank is set too large, it will not be conducive to the chassis 100 along the longitudinal thin design.

Referring to Fig. 12, Fig. 12 is another structural schematic diagram of the chassis assembly in Fig. 11. At this time, the water level switch is not installed on the chassis. In this embodiment, the chassis 100 extends upwards with a fixed part 410, and the water level switch 400 is installed on the fixed part. 410. The fixed part 410 is integrally formed with the chassis 100, and the water level switch 400 is directly installed on the fixed part 410, which can not only simplify the assembly steps of the water level switch 400, but also improve the assembly efficiency of the second water level switch 403 and improve the second water level switch 403. Second, the installation stability and reliability of the water level switch 403 is conducive to maintaining a safety gap between the float 401 and the tank side wall and bottom wall of the water storage tank 140 . However, the present design is not limited thereto. In other embodiments, a bracket may also be installed and fixed on the chassis, and the water level switch may be installed on the bracket.

12 to 15, in this embodiment, the water level switch 400 further includes a mounting base 420 for mounting the float 401, the fixing part 410 has a first side 413 facing the float 401, and the first side 413 is provided with a positioning protrusion 414, The mounting base 420 defines a positioning hole 421 matched with the positioning protrusion 414 . Through the cooperation of the positioning convex part 414 and the positioning hole 421, the fixing and position limitation of the mounting seat 420 are realized, thereby ensuring the safety gap between the float 401 and the tank side wall and the bottom wall of the water tank 140. The positioning structure is simple and beneficial Lower production costs for chassis 100 components. However, the present design is not limited thereto. In other embodiments, the water level switch may also include a mounting base for the float to be mounted on. The fixing part has a first side facing the float. The first side is provided with a first positioning hole, and the mounting base corresponds to The first positioning hole is provided with a second positioning hole, and the bolt can pass through the first positioning hole and the second positioning hole, so as to limit the mounting seat on the fixing part.

Referring to FIG. 15 , in this embodiment, there are two positioning protrusions 414 , and the two positioning protrusions 414 are disposed on opposite sides of the first side 413 along a direction parallel to the bottom wall of the water tank 140 . The positioning structure formed by the two positioning protrusions 414 can further improve the installation stability of the mounting seat 420 , thereby further ensuring a safety gap between the float 401 and the side wall and the bottom wall of the water holding tank 140 . It should be noted that the phase-parallel refers to parallel and near-parallel.

Referring to FIG. 15 , in this embodiment, the outer periphery of the positioning protrusion 414 is provided with an arc-shaped through groove 415 . Since the arc-shaped slot 415 is provided on the fixing part 410 , the inner side of the arc-shaped slot 415 can be elastically deformed, so that the positioning protrusion 414 located inside the arc-shaped slot 415 is more easily locked in the positioning hole 421 . It should be noted that the inner side of the arc-shaped slot 415 refers to the side of the arc-shaped slot 415 that is close to the arc equivalent circle center. However, the present design is not limited thereto, and in other embodiments, an arc-shaped through groove may also be provided on the outer periphery of the positioning hole.

Referring to Fig. 13, in order to improve the assembly efficiency and installation stability of the water level switch 400, in this embodiment, further, the mounting base 420 includes a first mounting plate 422 and a second mounting plate 423 arranged in intersection, and the float 401 is installed on the second mounting plate 423. A mounting plate 422, the positioning hole 421 is arranged on the second mounting plate 423, the side edge of the second mounting plate 423 extends toward the fixing portion 410 with a first flange 424, the first flange 424 and the second mounting plate 423 jointly define a The slot 425 is used for locking the fixing part 410 . The installation and fixation of the water level switch 400 can be realized by inserting the fixing part 410 into the slot 425 , the assembly steps are simple, and it is convenient for workers to install, thereby improving the assembly efficiency of the water level switch 400 . However, the present design is not limited thereto. In other embodiments, the mounting seat may also include a first mounting plate and a second mounting plate arranged in intersection, the float is mounted on the first mounting plate, and the positioning hole is provided on the second mounting plate. The second mounting plate is also provided with a first mounting hole, and the fixing portion is also provided with a second mounting hole, and the fastener can pass through the first mounting hole and the second mounting hole to fix the second mounting plate on the fixing portion.

Referring to FIG. 13 , in order to improve the structural strength of the mounting base 420 , in this embodiment, optionally, two second flanges 426 extend from both side edges of the second mounting plate 423 toward the fixing portion 410 respectively, and the two second The flanges 426 abut against the left and right sides of the fixing portion 410 respectively. The second flange 426 can not only improve the structural strength of the second mounting plate 423 , but also limit the displacement of the mounting seat 420 along the left and right directions, thereby improving the installation stability of the mounting seat 420 .

Referring to Fig. 12, Fig. 13 and Fig. 15, in this embodiment, the water level switch 400 includes a first water level switch 402 and a second water level switch 403 for detecting different water levels in the water tank 140, and the fixing part 410 includes a water level switch for the first water level switch respectively. The water level switch 402, the first fixed part 411 and the second fixed part 412 installed by the second water level switch 403, the first water level switch 402 is provided with the foolproof structure 404, the first fixed part 411 is provided with the foolproof structure 404 matching Mating structure 416 . By setting the fool-proof structure 404, it is possible to avoid the problem of workers on the production line or maintenance workers installing two different water level switches 400 by mistake, thereby improving the yield rate of products, saving rework time due to wrong installation, and improving assembly efficiency. It should be noted that the first water level switch 402 is used to detect the low water level, and the second water level switch 403 is used to detect the high water level. and the second water level switch 403 mainly plays an alarm function, and its effective signal is used to notify the user or after-sales personnel that timely manual intervention is required to remove the accumulated water in the water tank 140 in time. However, the present design is not limited thereto. In other embodiments, the water level switch may also include a first water level switch and a second water level switch for detecting different water levels in the sump. The first fixed part and the second fixed part where the water level switch is installed, the second water level switch is provided with a foolproof structure, and the second fixed part is provided with a matching structure matching the foolproof structure; or the first water level switch and the second The water level switches are all provided with fool-proof structures, and the two fool-proof structures and their matching structures are set differently. When both the first fixing part and the second fixing part are provided with fool-proof structures, the fool-proof structures on the first fixing part and the fool-proof structures on the second fixing part are set to be different.

Referring to FIG. 13 and FIG. 15 , in this embodiment, the matching structure 416 is a limiting protrusion provided on the first side surface 413 , and the fool-proof structure 404 is a clearance gap for inserting the limiting protrusion. When the mounting seat 420 of the first water level switch 402 is loaded into the first fixing part 411 from top to bottom, the limiting protrusion on the first fixing part 411 will gradually approach toward the relief gap, and be inserted through the opening of the relief gap and the left and right edges of the first fixing part 411 will also be inserted into the slot 425 of the first water level switch 402 until the positioning hole 421 on the first water level switch 402 is stuck on the first fixing part 411 At this time, the first water level switch 402 is installed and fixed on the chassis 100 . It can be understood that since the second water level switch 403 is not provided with a relief gap, when the worker mistakenly installs the second water level switch 403 on the first fixing part 411, since the second water level switch 403 is not provided with a relief gap , then the limit protrusion will interfere with the second water level switch 403 obviously during the installation of the second water level switch 403, so that the second water level switch 403 cannot be installed downwards. At this time, the workers can easily react, If there is an operation problem of wrong installation, the wrong installation problem can be corrected in time. Furthermore, workers can quickly and accurately determine the corresponding fixing portion 410 of the water level switch 400 by checking whether there is a gap on the water level switch 400 to be installed. However, the design is not limited thereto. In other embodiments, the matching structure may also be a plurality of ribs located above the positioning protrusion, and the fool-proof structure may be a second mounting plate located on the mounting base of the first water level switch. Give way sinker, and the step down sinker is configured as accommodating ribs.

Referring to Fig. 14 and Fig. 15, in order to facilitate viewing the difference in structural features between the first fixing part 411 and the second fixing part 412, in this embodiment, the first fixing part 411 and the second fixing part 412 are located on the same side of the water tank 140, and are arranged in parallel. Workers can see at a glance which fixed part 410 has a limiting protrusion, thereby confirming which fixed part 410 is the first fixed part 411, so that the first water level switch 402 can be quickly and accurately installed on the first fixed part 411 . However, the present design is not limited thereto, and in other embodiments, the first fixing portion and the second fixing portion may also be disposed on opposite sides of the sump.

15, in order to simplify the structure of the chassis 100 and further reduce the manufacturing cost of the chassis 100, in this embodiment, the arc-shaped through groove 415 on the first fixing part 411 and the arc-shaped through groove 415 on the second fixing part 412 are in the form of They are arranged in parallel, so that different arc-shaped through grooves 415 can be formed by one mold slider, thereby simplifying the mold structure of the chassis 100 and reducing the manufacturing cost of the chassis 100 .

In this embodiment, the height difference between the lower limit position of the float 401 of the second water level switch 403 and the lower limit position of the float 401 of the first water level switch 402 is greater than or equal to 5 mm. It can be understood that if the height difference between the lower limit position of the float 401 of the second water level switch 403 and the lower limit position of the float 401 of the first water level switch 402 is set too small, the accumulated water in the water tank 140 will be caused by external force. When turbulence occurs, it is easy to trigger the second water level switch 403 by mistake, which brings unnecessary troubles to the user.

The present application also proposes a chassis assembly for use in air-conditioning equipment. The air-conditioning equipment may be a dehumidifier or an integrated air conditioner, such as a mobile air conditioner.

Referring to Fig. 16 to Fig. 21, it is a structural schematic view of another embodiment of the chassis assembly of the present application. The chassis assembly includes a chassis 100 and a bolt 500. The bolt 500 includes a fixed section 501 and a screw section 505 connected to each other. The fixed section 501 is connected to the chassis. 100 is injection molded, and the peripheral surface of the fixed section 501 is provided with a limiting convex part 502. The limiting convex part 502 has two injection molding surfaces 503 distributed along the axial direction of the bolt 500 and facing away from each other. The chassis 100 is covered on the two injection molding surfaces 503 .

Referring to Fig. 18, in this embodiment, the chassis 100 has an upper surface and a lower surface, the screw section 505 protrudes from the upper surface, that is, the upper surface is used for compressor installation, and the screw section 505 is provided with an external thread for screwing with a nut . When the chassis 100 is coated on the two injection molding surfaces 503, that is, the injection molding surface 503 on the limiting protrusion 502 close to the screw segment 505 is spaced from the upper surface of the chassis 100, and the injection molding surface 503 on the limiting protrusion 502 away from the screw segment 505 is spaced from the upper surface of the chassis 100. The lower surface of the chassis 100 is spaced apart, that is, the limiting protrusion 502 is entirely covered in the chassis 100 . The fixing section 501 is injection molded with the chassis 100 , that is, the bolt 500 is injection molded together with the chassis 100 as an insert.

In the technical solution of the present application, by providing a limiting convex portion 502 on the peripheral surface of the fixing section 501 of the bolt 500, and then injecting the fixing section 501 and the chassis 100, the chassis 100 can be covered on the limiting convex portion 502 along the bolt. 500 are two injection molding surfaces 503 distributed axially and facing away from each other. In this way, the injection-molded chassis 100 completely covers the limiting convex part 502, so that the bolt 500 can be restricted from moving up and down by the limiting convex part 502, and the contact area between the bolt 500 and the chassis 100 is also increased, which can avoid The situation that the bolt 500 loosens and falls off due to the vibration of the compressor greatly improves the installation reliability of the bolt 500 and the chassis 100 . Moreover, when the chassis 100 wraps the position-limiting protrusion 502 as a whole, it avoids the situation that the position-limiting protrusion 502 is exposed, and the chassis 100 can be used to effectively protect the position-limiting protrusion 502 and the fixed section 501 to prevent the position-limiting protrusion Portion 502 is corroded.

Referring to FIG. 19 , in this embodiment, the limiting protrusion 502 is arranged in a non-rotating shape with respect to the axis of the bolt 500 . Specifically, when the chassis 100 covers the limiting protrusion 502 as a whole, the chassis 100 also covers the side surface of the limiting protrusion 502 located between the two injection molding surfaces 503 . When the limiting protrusion 502 is arranged in a non-rotating shape with respect to the axis of the bolt 500, it can prevent the limiting protrusion 502 from rotating around the axis of the bolt 500, that is, when the bolt 500 is subjected to a rotational torque, it can prevent the bolt 500 from rotating on the chassis 100. The upper rotation increases the anti-torque ability of the bolt 500, so that the bolt 500 will not loosen when it bears a large rotational moment and forces in various directions. Certainly, in other embodiments, the limiting protrusion 502 may also be arranged in a ring shape.

Wherein, the specific shape of the limiting protrusion 502 can be various. For example, in this embodiment, the limiting protrusion 502 is in the shape of a polygonal column surrounding the fixing section 501 . That is, the outer peripheral contour of the limiting convex portion 502 is polygonal. Specifically, the limiting convex portion 502 can be in the shape of a triangular column, a quadrangular column, a pentagonal column, or a hexagonal column, etc., so that the limiting convex portion 502 The structure is simple, easy to process and form, and can reduce manufacturing difficulty and cost. In this embodiment, the limiting protrusion 502 is in the shape of a rectangular column surrounding the fixing section 501 . However, the present design is not limited thereto. In other embodiments, the limiting convex portion 502 can also be in the shape of an elliptical column surrounding the fixed section 501, that is, the outer peripheral contour of the limiting convex portion 502 is elliptical, so that the structure of the limiting convex portion 502 Simple. Alternatively, the limiting protrusion 502 further includes an annular portion surrounding the fixing section 501 and a protrusion disposed on the annular portion, the annular portion has an injection molding surface 503 , and the protrusion is disposed on the injection molding surface 503 . Alternatively, the limiting protrusion 502 includes an annular portion surrounding the fixing section 501 and a groove recessed on the surface of the annular portion.

Referring to FIG. 18 , in this embodiment, the chassis assembly further includes a sealant layer 506 , and the sealant layer 506 is provided at the boundary between the screw segment 505 and the chassis 100 . Specifically, after the bolt 500 and the chassis 100 are injection molded together, sealant is provided at the boundary between the screw section 505 and the upper surface of the chassis 100 to form a sealant layer 506. When there is a gap at the boundary of the surface, it can also be sealed by the sealant layer 506, which can prevent water from penetrating into the fixed segment 501 from the gap between the screw segment 505 and the chassis 100 and cause the fixed segment 501 to be corroded, further improving the bolt 500. Installation reliability.

In this embodiment, the thickness of the sealant layer 506 (refer to the label h in FIG. 19 ) is greater than or equal to 0.5 mm. Such arrangement can ensure that the sealant layer 506 is stably adhered to the boundary between the screw segment 505 and the chassis 100 , reduces the risk of the sealant layer 506 falling off, and ensures a better sealing effect. It should be noted that the sealant layer 506 may be only provided at the corners of the screw section 505 and the chassis 100 , or may be laid on the surface of the chassis 100 in a larger area. The thickness of the sealant layer 506 is the protrusion height of the sealant layer 506 relative to the surface of the chassis, that is, the thickness of the sealant layer 30 is the distance between the side of the sealant layer 506 away from the chassis surface and the surface of the chassis 100 .

Referring to Fig. 19 to Fig. 21, in this embodiment, the peripheral surface of the fixed section 501 is also provided with a plurality of limiting ribs 504 extending along the axial direction of the bolt 500, and the plurality of limiting ribs 504 are located on the fixed section 501. They are distributed at intervals in the circumferential direction, and are all located on a side of the limiting protrusion 502 away from the screw segment 505 . It should be understood that when the fixed section 501 and the chassis 100 are injection molded together, the chassis 100 is also covered by the limiting ribs 504, that is, the chassis 100 can be embedded in the groove formed between two adjacent limiting ribs 504, so On the one hand, the contact area between the fixed section 501 and the chassis 100 is increased, which further improves the connection stability between the bolt 500 and the chassis 100; The bolt 500 does not loosen when subjected to relatively large rotational torque and forces in various directions.

Referring to Fig. 18 to Fig. 21, in this embodiment, the peripheral surface of the fixed section 501 is provided with a limiting sinking groove 507, and the limiting sinking groove 507 is located on the side of the limiting convex part 502 away from the screw segment 505, and is connected with the limiting convex part. 502 interval. By setting the limiting sinking groove 507 on the peripheral surface of the fixing section 501, when the fixing section 501 and the chassis 100 are injection molded together, the chassis 100 can be embedded in the limiting sinking groove 507, thereby limiting the movement of the bolt 500 relative to the chassis 100 along its axial direction. , and also increases the contact area between the fixing section 501 and the chassis 100 , further reduces the risk of the bolt 500 loosening, and improves the connection stability between the bolt 500 and the chassis 100 . In addition, by arranging the limiting sinker groove 507 and the limiting convex portion 502 at intervals, when the limiting sinker groove 507 is processed and formed, the interference of the processing tool with the limiting convex portion 502 can be avoided, and the processing and forming can be facilitated.

Referring to FIG. 20 and FIG. 21 , in this embodiment, the limiting sinker 507 is in the shape of a ring extending along the circumferential direction of the fixing section 501 . That is, the limiting sinking groove 507 is arranged around the outer periphery of the fixing section 501 . In this way, when the width of the limiting sinker 507 in the axial direction of the bolt 500 is constant, the size of the limiting sinker 507 can be increased. When the fixed section 501 and the chassis 100 are injection molded together, the plastic forming the chassis 100 can be fixed from the The limit sinking groove 507 is embedded around the section 501, so that more parts of the chassis 100 are embedded in the limit sinking groove 507, so that the movement of the bolt 500 relative to the chassis 100 along its axial direction can be better restricted, and the fixed section is further enlarged. The contact area between the 501 and the chassis 100 further reduces the risk of the bolt 500 becoming loose. When the limiting rib 504 is set, the limiting rib 504 is broken at the limiting sinker 507 . Certainly, in other embodiments, the limit sinking groove 507 may also be a square groove or a circular groove.

19 to 21, in this embodiment, at least two limiting sinking grooves 507 are provided on the peripheral surface of the fixing section 501, and the two limiting sinking grooves 507 are located on the side of the limiting protrusion 502 away from the screw segment 505. , and are arranged at intervals in the axial direction of the bolt 500 . Such an increase in the number of limit sinking grooves 507 can make more parts of the chassis 100 embedded in the limit sinking grooves 507, thereby better restricting the movement of the bolt 500 relative to the chassis 100 along its axial direction, and further increasing the fixed section. The contact area between the 501 and the chassis 100 reduces the risk of the bolt 500 becoming loose. In this embodiment, two limiting sinking grooves 507 are provided on the peripheral surface of the fixing section 501, and the limiting sinking grooves 507 on the fixing section 501 away from the limiting convex part 502 are separated from the end surface of the fixing section 501 away from the limiting convex part 502. , the limiting sinker 507 on the fixing section 501 close to the limiting convex portion 502 is spaced from the limiting convex portion 502 .

The present application also proposes an air conditioner, including the aforementioned chassis assembly. For the specific structure of the chassis assembly, refer to the above-mentioned embodiments. Since this air conditioner adopts all the technical solutions of all the above-mentioned embodiments, it has at least the technical solutions of the above-mentioned embodiments. All the beneficial effects brought about will not be described one by one here.

The above are only optional embodiments of the present application, and are not intended to limit the patent scope of the present application. Under the inventive concept of the present application, the equivalent structural transformations made by using the description of the application and the contents of the accompanying drawings, or direct/indirect Applications in other relevant technical fields are included in the patent protection scope of the present application.

Claims (20)

1. A chassis assembly, comprising:

   Chassis, provided with a sump for collecting condensed water;

   a limit snapping piece, connected to the chassis, and used to fasten the water pumping motor; and

   The mounting part is connected to the chassis, and is arranged on the same side of the sump as the limit snapping part. Machine fastener connection.
2. The chassis assembly according to claim 1, wherein the limiting engaging member comprises a locking plate and two limiting plates respectively arranged on opposite sides of the locking plate, and the limiting plates are used to abut against the punching plate. For the water motor, the side of the engaging plate close to the limiting plate is provided with an engaging convex portion for securing the water motor, and the engaging convex portion, the engaging plate, and the two limiting plates jointly define a To abut against the limiting groove of the pumping motor.
3. The chassis assembly according to claim 2, wherein the engaging protrusion is provided with a limiting surface facing the limiting groove, and a first guide inclined surface away from the limiting groove, and is far away from the engaging plate. In the direction of , the first guide slope extends obliquely along the direction close to the chassis; and/or

   The end of the limit plate away from the chassis is provided with a second guide slope, and in the direction toward the limit slot, the second guide slope extends obliquely in a direction close to the chassis.
4. The chassis assembly according to claim 2, wherein the engaging protrusion is arranged above the limiting plate; and/or

   The engaging convex part is connected with a pressing part for the user to press and operate; and/or

   The extending direction of the mounting holes is parallel to the distribution direction of the two limiting plates; and/or

   There are at least two mounting holes, and at least two mounting holes are arranged at intervals along the vertical direction.
5. The chassis assembly according to any one of claims 1 to 4, wherein the chassis assembly further comprises a water baffle connecting the chassis, the mounting piece, and the limit snapping piece, the water baffle, the limit The engaging part and the mounting part jointly define a storage cavity for receiving the water pumping motor; and/or

   The chassis assembly also includes a supporting member connected to the chassis, and the supporting member is used to support the water pumping motor so that a gap is formed between the water pumping motor and the chassis.
6. The chassis assembly according to claim 1, wherein the chassis assembly further comprises a water pumping motor and a water retaining member, the water pumping motor includes a motor located outside the sump, and a drive connected to the motor The rotating shaft, the groove wall of the water collection tank is provided with an avoidance port for the movable shaft to pass through, the water retaining member is connected to the rotating shaft, and is set corresponding to the avoidance port,

   And/or, the distance between the water blocking member and the escape opening is at least 1.5 mm.
7. The chassis assembly according to claim 6, wherein the groove wall of the water collection groove is further provided with an avoidance groove for the rotating shaft to move through, and the avoidance groove is arranged along the axial extension of the rotating shaft, and the The avoidance groove has a first groove wall close to the motor, the avoidance port is located on the first groove wall, and the water blocking member is located in the avoidance groove,

   And/or, the distance between the edge of the first groove wall and the escape port is at least 3.5 mm.
8. The chassis assembly according to claim 7, wherein, in the direction away from the avoidance port, the equivalent diameter of the avoidance groove is gradually increased;

   And/or, the escape opening is provided with an upward notch, and the escape groove is provided with an upward opening, and the opening communicates with the notch.
9. The chassis assembly according to claim 6, wherein the water retaining member is a water retaining ring sleeved on the rotating shaft; and/or

   The water retaining member is made of elastic material;

   And/or, taking a plane perpendicular to the axis of the rotating shaft as a reference plane, the projection of the outer contour of the water retaining member on the reference plane is at least partially located in the projection of the avoidance port on the reference plane outside.
10. A chassis assembly, wherein the chassis assembly includes:

    a chassis having a water tank; and

    The water level switch is set in the water tank and includes a float for following the water surface in the water tank;

    The shortest distance between the outer edge of the float and the tank side wall of the water tank is greater than or equal to 7 millimeters; and/or, the distance between the lower limit position of the float and the bottom wall of the water tank is greater than or equal to equal to 6 mm;

    And/or, a fixing part extends upwards from the chassis, and the water level switch is installed on the fixing part.
11. The chassis assembly according to claim 10, wherein the bottom wall of the water holding tank is provided with a sedimentation tank corresponding to the lower end of the water level switch,

    And/or, the depth of the sedimentation tank ranges from 2 mm to 3 mm.
12. The chassis assembly according to claim 10, wherein the water level switch further comprises a mounting seat for the float to be mounted on, the fixing part has a first side facing the float, and the first side is provided with a positioning protrusion The mounting seat is provided with a positioning hole matched with the positioning protrusion.
13. The chassis assembly according to claim 12, wherein the mounting seat comprises a first mounting plate and a second mounting plate intersecting, the float is mounted on the first mounting plate, and the positioning hole is provided on the The second mounting plate, the side edge of the second mounting plate extends toward the fixing portion with a first flange, the first flange and the second mounting plate jointly define a the card slot on the inside; and/or

    The outer periphery of the positioning protrusion is provided with an arc-shaped through groove.
14. The chassis assembly according to claim 10, wherein the water level switch includes a first water level switch and a second water level switch for detecting different water levels in the water tank, and the fixing part includes a water level switch for the first The first fixing part and the second fixing part where the water level switch and the second water level switch are installed, the first water level switch is provided with a foolproof structure, and the first fixing part is provided with a matching structure matching the foolproof structure ;

    And/or, the matching structure is a position-limiting protrusion provided on the first side, and the fool-proof structure is a gap for the position-limiting protrusion to be inserted into;

    And/or, the first fixing part and the second fixing part are located on the same side of the water holding tank and are arranged in parallel.
15. A chassis assembly, wherein the chassis assembly includes:

    chassis; and

    The bolt includes a fixed section connected with a screw section, the fixed section is injection-molded with the chassis, the peripheral surface of the fixed section is provided with a limiting protrusion, and the limiting protrusion has a shape along the axial direction of the bolt. Two injection molding surfaces are distributed and away from each other, and the chassis covers the two injection molding surfaces.
16. The chassis assembly according to claim 15, wherein the limiting protrusion is arranged in the shape of a non-rotating body with respect to the axis of the bolt;

    And/or, the limiting convex part is in the shape of a polygonal column surrounding the fixing section; alternatively, the limiting convex part is in the shape of an elliptical column surrounding the fixing section.
17. The chassis assembly according to claim 15, wherein the chassis assembly further comprises a sealant layer, and the sealant layer is provided at the boundary between the screw segment and the chassis,

    And/or, the thickness of the sealant layer is greater than or equal to 0.5mm.
18. The chassis assembly according to claim 15, wherein, the peripheral surface of the fixing section is further provided with a plurality of limiting ribs extending in the axial direction of the bolt, and the plurality of limiting ribs are arranged on the The fixing segments are distributed at intervals in the circumferential direction, and are all located on a side of the limiting protrusion away from the screw segment.
19. The chassis assembly according to claim 15, wherein a limiting sinker is provided on the peripheral surface of the fixing section, and the limiting sinking is located on the side of the limiting protrusion away from the screw section, and is in contact with the screw section. The distance between the limiting protrusions is,

    And/or, the limit sinking groove is in the shape of a ring extending along the circumference of the fixing section,

    And/or, at least two limiting sinking grooves are provided on the peripheral surface of the fixing section, and the two limiting sinking grooves are located on the side of the limiting protrusion away from the screw segment, The bolts are arranged at intervals in the axial direction.
20. An air conditioner, comprising the chassis assembly according to any one of claims 1-19.

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