Motor base assembly, indoor unit and air conditioner

Abstract

The utility model discloses a motor base assembly, an indoor unit and an air conditioner, the motor base assembly comprises a middle frame, a motor base and a motor, and the middle frame is provided with a first through hole; the motor base covers the middle frame and directly faces the first through hole, the motor base and the middle frame are matched to form a first containing cavity, and a second through hole is formed in the motor base; the motor is connected to the side, away from the middle frame, of the motor base, and a motor shaft of the motor penetrates through the second through hole to enter the first containing cavity. A sealing rib is arranged on the side, away from the middle frame, of the motor base and surrounds the second through hole, and the side, close to the motor base, of the motor abuts against the sealing rib. The sealing rib abuts against the side, close to the motor base, of the motor, so that the sealing rib is matched with the side wall of the motor to form a blocking structure, the second through hole is blocked, wet and cold air on the air supply side is prevented from entering the motor side, and condensation of the motor on the motor side and an electric control device is avoided.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment technology, and in particular to a motor base assembly, an indoor unit, and an air conditioner. Background Technology

[0002] With the development of the times, people's requirements for air conditioners are constantly increasing. From the initial manual left and right swing, they have gradually developed into electric left and right swing. In the structure of electric left and right swing, the crank-connecting rod motion mechanism is common. That is, the motor drives the active crank to rotate within a certain angle, and the active crank drives the connecting rod to make translation, thereby causing the left and right swing blades to swing within a certain angle (the connecting rod and the left and right swing blades are rotatably connected together). This motion form requires the motor to be placed on one side of the air outlet and the base to have an opening for the connecting rod to move. This causes air on the air supply side to enter the motor side through the gap, causing condensation on the motor and electronic control components. Utility Model Content

[0003] The main objective of this utility model embodiment is to provide a motor mount assembly, an indoor unit, and an air conditioner, aiming to improve the technical problem of condensation in the motor mount assembly in the prior art.

[0004] An embodiment of this utility model provides a motor mount assembly, which includes:

[0005] The middle frame has a first through hole;

[0006] A motor base is mounted on the middle frame and directly opposite the first through hole. The motor base and the middle frame cooperate to form a first receiving cavity. A second through hole is provided on the motor base.

[0007] The motor is connected to the side of the motor mount away from the middle frame, and the motor shaft of the motor passes through the second through hole and enters the first receiving cavity;

[0008] The motor mount has a sealing rib on the side away from the middle frame, the sealing rib surrounds the second through hole, and the side of the motor near the motor mount abuts against the sealing rib.

[0009] In some embodiments of this utility model, a heat insulation cavity is provided on the side of the motor mount away from the middle frame, and the heat insulation cavity is arranged around the motor.

[0010] In some embodiments of this utility model, the motor mount assembly further includes a crank connecting rod disposed in the first accommodating cavity, and the crank connecting rod is connected to the motor shaft of the motor.

[0011] In some embodiments of this utility model, a motor shaft fixing hole is provided on the crank connecting rod. The motor shaft fixing hole includes a first wall and a second wall opposite to each other. Both the first wall and the second wall are provided with a plurality of grooves spaced apart from each other. The motor shaft is connected to the motor shaft fixing hole and abuts against the first wall and the second wall respectively.

[0012] In some embodiments of this utility model, the motor base is provided with a first limiting post and a second limiting post spaced apart from each other on the side away from the motor, and the first limiting post and the second limiting post are respectively located on both sides of the second through hole;

[0013] The crank connecting rod has arc-shaped grooves on both sides. The crank connecting rod is configured to move between a first position and a second position. When the crank connecting rod is in the first position, the arc-shaped groove on one side of the crank connecting rod abuts against the first limiting post. When the crank connecting rod is in the second position, the arc-shaped groove on the other side of the crank connecting rod abuts against the second limiting post.

[0014] In some embodiments of this utility model, the middle frame has a third wall and a fourth wall that are skew to each other. A first connecting post is provided on the third wall, and a second connecting post is provided on the fourth wall. The motor base is provided with a first connecting hole that matches and connects to the first connecting post and a second connecting hole that matches and connects to the second connecting post.

[0015] In some embodiments of this utility model, the height of the closing rib is greater than or equal to 0.5 mm.

[0016] In some embodiments of this utility model, a windbreak rib is provided on the side of the middle frame near the motor base, and the windbreak rib is arranged around the first through hole.

[0017] In some embodiments of this utility model, an indoor unit is also provided, which includes the motor mount assembly described above.

[0018] In some embodiments of this utility model, an air conditioner is also provided, which includes the indoor unit described above.

[0019] An embodiment of this utility model provides a motor mount assembly, an indoor unit, and an air conditioner. The motor mount assembly has a sealing rib surrounding a second through hole on the side of the motor mount away from the middle frame. The sealing rib abuts against the side of the motor near the motor mount, so that the sealing rib cooperates with the side wall of the motor to form a sealing structure, blocking the second through hole and preventing humid and cold air from the air supply side from entering the motor side, thereby preventing condensation from occurring on the motor and electronic control devices on the motor side. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a motor mount assembly according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the motor mounting side of a motor mount according to an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the crank connecting rod structure according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the crank-connecting rod mounting side of a motor mount according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the frame structure in one embodiment of the present invention.

[0026] Reference numerals: 100, middle frame; 101, third wall; 1011, first connecting post; 102, fourth wall; 1021, second connecting post; 103, first through hole; 1031, windproof rib; 110, transmission connecting rod; 200, motor; 300, motor base; 301, second through hole; 302, sealing rib; 303, heat insulation sub-cavity; 304, first connecting hole; 305, second connecting hole; 306, first limiting post; 307, second limiting post; 310, crank connecting rod; 311, motor shaft fixing hole; 3111, first wall; 3112, second wall; 313, arc-shaped groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] like Figures 1-5 As shown, this utility model provides a motor mount 300 assembly, which includes a middle frame 100, a motor mount 300, and a motor 200. The middle frame 100 has a first through hole 103. The motor mount 300 covers the middle frame 100 and faces the first through hole 103. The motor mount 300 and the middle frame 100 cooperate to form a first receiving cavity. The motor mount 300 is provided with a second through hole 301. The motor 200 is connected to the side of the motor mount 300 away from the middle frame 100, and the motor shaft of the motor 200 passes through the second through hole 301 and enters the first receiving cavity. A closing rib 302 is provided on the side of the motor mount 300 away from the middle frame 100. The closing rib 302 surrounds the second through hole 301, and the side of the motor 200 near the motor mount 300 abuts against the closing rib 302.

[0032] The first through hole 103 is used as a transmission channel for the transmission component, so that the motor 200 shaft of the motor 200 can be transmitted to the air sweeping assembly through the first through hole 103 via the transmission component.

[0033] The first through hole 103 and the second through hole 301 are substantially opposite to each other, that is, they are located on both sides of the first accommodating cavity and are opposite to each other, so as to facilitate the transmission of the transmission assembly.

[0034] It is understandable that a sealing rib 302 is provided on the side of the motor base 300 away from the middle frame 100, surrounding the second through hole 301. The sealing rib 302 abuts against the side of the motor 200 near the motor base 300, so that the sealing rib 302 and the side wall of the motor 200 cooperate to form a sealing structure, blocking the second through hole 301, preventing the humid and cold air on the air supply side from entering the motor 200 side, thereby preventing condensation from occurring on the motor 200 and the electronic control devices on the motor 200 side.

[0035] On the other hand, by connecting the motor 200 and the motor base 300 through the closed rib 302, compared with the direct contact between the motor base 300 and the motor 200, the surface contact vibration transmission between the direct contact between the motor base 300 and the motor 200 can be changed to line contact vibration transmission, thereby reducing the vibration transmission amplitude.

[0036] When the motor base 300 is connected to the middle frame 100, the edge of the motor base 300 is tightly connected to the surface of the middle frame 100 so that there are no gaps at the edge of the first accommodating cavity.

[0037] In some embodiments, a heat insulation cavity is provided on the side of the motor base 300 away from the middle frame 100, and the heat insulation cavity surrounds the motor 200.

[0038] The heat insulation cavity can prevent the temperature in the first accommodating cavity from being transferred to the motor 200, thus preventing condensation from forming on the surface of the motor 200 due to the lower temperature.

[0039] In some embodiments, the heat insulation cavity includes a plurality of heat insulation sub-cavities 303 spaced apart from each other, and the plurality of heat insulation sub-cavities 303 are arranged around the motor 200.

[0040] Among them, the heat insulation cavity 303 is generally formed by the cooperation of the heat insulation wall and the side wall of the motor base 300.

[0041] In some embodiments, the motor mount 300 assembly further includes a crank connecting rod 310 disposed in a first receiving cavity and connected to the motor shaft of the motor 200.

[0042] The crank connecting rod 310 is connected to the motor shaft of the motor 200. The rotation of the motor shaft drives the crank connecting rod 310 to move. At the same time, the crank connecting rod 310 is connected to the transmission connecting rod 110. The transmission connecting rod 110 passes through the first through hole 103 for connection with the sweeping assembly. The rotation of the motor shaft drives the crank connecting rod 310 to swing, thereby driving the transmission connecting rod 110 to reciprocate, and thus driving the blades of the sweeping assembly to sweep back and forth.

[0043] In some embodiments, the first through hole 103 is a rectangular through hole, and the first through hole 103 has a first top wall near the top of the middle frame 100, a first bottom wall near the bottom of the middle frame 100, and a first side wall and a second side wall connected between the first top wall and the first bottom wall; wherein, the gap between the transmission link 110 and the first top wall is set to X1, the gap between the transmission link 110 and the first side wall and the second side wall is X2 respectively, and the gap between the transmission link 110 and the first bottom wall is set to X3; wherein, 1mm≤X1=X2≤4mm; X3=X2+a, where a is the reciprocating stroke distance of the transmission link 110; that is, by setting the gap between the transmission link 110 and the first through hole 103 as described above, it is avoided that the transmission link 110 is jammed due to the gap between the transmission link 110 and the first through hole 103 being too small, and it is also avoided that the gap between the transmission link 110 and the first through hole 103 is too large, causing excessive cold air to enter the first accommodating cavity from the air supply side and causing condensation problems.

[0044] In some embodiments, the crank connecting rod 310 is provided with a motor shaft fixing hole 311. The motor shaft fixing hole 311 includes a first wall 3111 and a second wall 3112 opposite to each other. Both the first wall 3111 and the second wall 3112 are provided with a plurality of grooves spaced apart from each other. The motor 200 shaft is connected to the motor shaft fixing hole 311 and abuts against the first wall 3111 and the second wall 3112 respectively.

[0045] It can be understood that by setting multiple spaced grooves on the first wall 3111 and the second wall 3112, the first wall 3111 and the second wall 3112 form uneven surfaces, thereby increasing the friction between the motor 200 shaft and the motor shaft fixing hole 311 when they are connected, and thus improving the connection stability between the motor 200 shaft and the crank connecting rod 310.

[0046] Among them, the motor shaft fixing hole 311 has a blind hole with a closed end, which can play a role in preventing assembly errors.

[0047] Among them, the motor shaft fixing hole 311 is an oblong blind hole.

[0048] In some embodiments, the motor base 300 has a first limiting post 306 and a second limiting post 307 spaced apart from each other on the side opposite to the motor 200. The first limiting post 306 and the second limiting post 307 are respectively located on both sides of the second through hole 301. The crank connecting rod 310 has arc-shaped grooves 313 on both sides. The crank connecting rod 310 is configured to move between a first position and a second position. When the crank connecting rod 310 is in the first position, the arc-shaped groove 313 on one side of the crank connecting rod 310 abuts against the first limiting post 306. When the crank connecting rod 310 is in the second position, the arc-shaped groove 313 on the other side of the crank connecting rod 310 abuts against the second limiting post 307.

[0049] It is understandable that the purpose of setting the first limiting post 306 and the second limiting post 307 is to limit the swing stroke of the crank connecting rod 310 and avoid excessive swing of the crank connecting rod 310, which would cause the blades in the sweeping assembly to swing excessively and interfere with other structures.

[0050] Meanwhile, the position where the crank connecting rod 310 contacts the first limiting post 306 and the second limiting post 307 is set as an arc-shaped groove 313. Compared with the straight structure that contacts and collides with the first limiting post 306 and the second limiting post 307, the arc surface of the arc-shaped groove 313 has a larger contact and collision area with the first limiting post 306 and the second limiting post 307, which can dissipate the collision pressure to a certain extent, thus making it safer and more reliable.

[0051] Generally, the degree of the first included angle formed between the first limiting post 306, the motor shaft 200, and the second limiting post 307 is set to C1. The swing starting point of the crank connecting rod 310 is located on the angle bisector of the first included angle. The crank connecting rod 310 is configured to deflect towards the first limiting post 306 by a degree of C2 from the swing starting point and towards the second limiting post 307 by a degree of C3 from the swing starting point, where C1≥C2+C3, and C2≥C3+5°.

[0052] In some embodiments, the middle frame 100 has a third wall 101 and a fourth wall 102 that are skew to each other. A first connecting post 1011 is provided on the third wall 101, and a second connecting post 1021 is provided on the fourth wall 102. The motor base 300 is provided with a first connecting hole 304 that matches and connects to the first connecting post 1011 and a second connecting hole 305 that matches and connects to the second connecting post 1021.

[0053] The third wall 101 and the fourth wall 102 are skew surfaces, meaning they are not on the same plane and are not parallel to each other. This allows the first connecting post 1011 and the second connecting post 1021 to face different directions. The motor base 300 is provided with a first connecting hole 304 and a second connecting hole 305 corresponding to these two holes. This allows the motor base 300 and the middle frame 100 to form a connection structure in different directions, thereby limiting each other and improving the connection stability between the motor base 300 and the middle frame 100.

[0054] In some embodiments, the height of the closing rib 302 is greater than or equal to 0.5 mm.

[0055] If the height of the closing rib 302 is too small, the contact between the motor 200 and the closing rib 302 may be incomplete, resulting in gaps in the enclosed space formed by the closing rib 302 and the motor 200. Therefore, the closing rib 302 needs to have a certain height so that the surface of the motor 200 on the side close to the motor base 300 can contact the closing rib 302.

[0056] In some embodiments, a windbreak rib 1031 is provided on the side of the middle frame 100 near the motor base 300, and the windbreak rib 1031 is arranged around the first through hole 103.

[0057] It is understandable that the wind deflector 1031 is arranged around the first through hole 103 to block the airflow exchange on both sides of the first through hole 103, thereby preventing cold air from the air supply side from entering the first accommodating cavity and the motor 200 side.

[0058] Generally, the height H1 of the windbreak rib 1031 is limited to: 3mm≤H1≤7mm.

[0059] It is understandable that if the wind deflector 1031 is too high, it will easily generate noise, and if the wind deflector 1031 is too low, it will not have a wind-blocking effect. Therefore, the wind deflector 1031 is limited to between 3mm and 7mm.

[0060] In some embodiments, the height of the wind deflector 1031 is 3mm.

[0061] In some embodiments, the height of the windbreak rib 1031 is 5mm.

[0062] In some embodiments, the height of the wind deflector 1031 is 7mm.

[0063] In some embodiments, the thickness of the windbreak rib 1031 is set to be greater than 2mm to ensure the heat insulation effect of the windbreak rib 1031 and to prevent condensation from occurring on the side of the windbreak rib 1031 away from the first through hole 103.

[0064] In some embodiments, an indoor unit is also provided, which includes the aforementioned motor mount 300 assembly. Since the motor mount 300 assembly includes at least some or all of the above embodiments, the indoor unit has at least the beneficial effects of some or all of the above embodiments, which will not be elaborated further here.

[0065] In some embodiments, an air conditioner is also provided, the refrigeration device including the above-described indoor unit. Since the indoor unit includes at least some or all of the embodiments of the above-described motor mount 300 assembly, the air conditioner has at least the beneficial effects of some or all of the above-described embodiments, which will not be described in detail here.

[0066] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made based on the contents of the present utility model specification and drawings under the application concept of the present utility model, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A motor mount assembly, characterized in that, include: The middle frame has a first through hole; A motor base is mounted on the middle frame and directly opposite the first through hole. The motor base and the middle frame cooperate to form a first receiving cavity. A second through hole is provided on the motor base. The motor is connected to the side of the motor mount away from the middle frame, and the motor shaft of the motor passes through the second through hole and enters the first receiving cavity; The motor mount has a sealing rib on the side away from the middle frame, the sealing rib surrounds the second through hole, and the side of the motor near the motor mount abuts against the sealing rib.

2. The motor mount assembly according to claim 1, characterized in that, A heat insulation cavity is provided on the side of the motor mount away from the middle frame, and the heat insulation cavity surrounds the motor.

3. The motor mount assembly according to claim 1, characterized in that, The motor mount assembly also includes a crank connecting rod disposed in the first accommodating cavity, and the crank connecting rod is connected to the motor shaft of the motor.

4. The motor mount assembly according to claim 3, characterized in that, The crank connecting rod is provided with a motor shaft fixing hole, which includes a first wall and a second wall opposite to each other. Both the first wall and the second wall are provided with a plurality of grooves spaced apart from each other. The motor shaft is connected to the motor shaft fixing hole and abuts against the first wall and the second wall respectively.

5. The motor mount assembly according to claim 3, characterized in that, The motor mount is provided with a first limiting post and a second limiting post spaced apart from each other on the side opposite to the motor, and the first limiting post and the second limiting post are respectively located on both sides of the second through hole; The crank connecting rod has arc-shaped grooves on both sides. The crank connecting rod is configured to move between a first position and a second position. When the crank connecting rod is in the first position, the arc-shaped groove on one side of the crank connecting rod abuts against the first limiting post. When the crank connecting rod is in the second position, the arc-shaped groove on the other side of the crank connecting rod abuts against the second limiting post.

6. The motor mount assembly according to claim 1, characterized in that, The middle frame has a third wall and a fourth wall that are skew to each other. A first connecting post is provided on the third wall, and a second connecting post is provided on the fourth wall. The motor base is provided with a first connecting hole that matches and connects to the first connecting post and a second connecting hole that matches and connects to the second connecting post.

7. The motor mount assembly according to claim 1, characterized in that, The height of the closing rib is greater than or equal to 0.5 mm.

8. The motor mount assembly according to claim 7, characterized in that, A windbreak rib is provided on the side of the middle frame near the motor base, and the windbreak rib is arranged around the first through hole.

9. An indoor unit, characterized in that, Includes the motor mount assembly as described in any one of claims 1-8.

10. An air conditioner, characterized in that, Including the indoor unit as described in claim 9.

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