Motor fixing structure and air conditioner thereof

Abstract

The utility model provides a motor fixing structure and an air conditioner thereof, the motor fixing structure comprises a motor cover and a bottom shell, and an accommodating cavity matched with a motor is arranged between the motor cover and the bottom shell; the first ends, perpendicular to the axis of the motor, of the motor cover and the bottom shell are connected through a buckle structure, and the second ends, perpendicular to the axis of the motor, of the motor cover and the bottom shell are fixed through screws. Specifically, at least one through hole is formed in the second end, perpendicular to the axis of the motor, of the motor cover. The second end, perpendicular to the axis of the motor, of the bottom shell is provided with at least one screw column matched with the screw, the end face of the top of the screw column is provided with an annular boss which is matched with the through hole and can be clamped into the through hole from the bottom of the through hole, and the annular boss is provided with at least two anti-cracking notches. The anti-cracking notches penetrate from the outer side wall of the annular boss to the inner side wall of the annular boss. The assembling efficiency can be improved, deviation and cracking can be prevented, and the production quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical engineering field especially relates to a motor fixing structure and air conditioner thereof. BACKGROUND

[0002] As a kind of key equipment for converting electric energy into mechanical energy, motor is widely used in industrial automation, transportation, household appliances and many other fields, and plays an irreplaceable role in many devices.For example, in the field of household appliances, motor can drive fan blade to rotate, thereby promoting the circulation and heat exchange of air, which is crucial for maintaining the stability of indoor temperature.

[0003] In the internal structure of air conditioner, motor is usually arranged on bottom shell, and motor cover is usually installed above motor.Motor cover is not only a protective cover of motor, which can prevent dust and moisture from entering the interior of motor to affect its normal work, but also can play a role in shock absorption and noise reduction to some extent, which is very important for maintaining the stable work of air conditioner.

[0004] However, in the existing air conditioner production process, the assembly of motor, motor cover and bottom shell is simply assembled and fixed by multiple screws, which has the following obvious problems:(1) multiple assembly screws, low assembly efficiency, complex operation and long time-consuming;(2) lacking positioning structure, assembly deviation problem is prone to occur in assembly process, which not only increases the cost of subsequent adjustment, but also may cause the friction between components to increase, thereby affecting the overall performance of air conditioner;(3) in the fastening process, screw column is prone to cracking due to uneven stress, which affects production quality. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of motor fixing structure and air conditioner thereof, which can improve the assembly efficiency and assembly accuracy of motor, and improve production quality.The specific scheme is as follows:

[0006] A motor fixing structure includes a motor cover and a bottom shell, and a receiving cavity is provided between the motor cover and the bottom shell, which is adapted to the motor and can accommodate the motor.The first end of the motor cover and the bottom shell perpendicular to the motor axis is connected by a buckle structure, and the second end perpendicular to the motor axis is fixed by a screw.In particular, the second end of the motor cover perpendicular to the motor axis is provided with at least one through hole.The second end of the bottom shell perpendicular to the motor axis is provided with at least one screw column adapted to the screw, and the top end surface of the screw column is provided with an annular boss adapted to the through hole and capable of being clamped into the through hole from the bottom of the through hole, and at least two anti-cracking notches are provided on the annular boss, which penetrate from the outer sidewall to the inner sidewall of the annular boss.

[0007] Further, the anti-cracking notch is in a "┐" structure, which penetrates from the outer sidewall to the inner sidewall of the annular boss and then extends longitudinally downward on the inner side of the annular boss.

[0008] Further, the inner side of the annular boss is provided with a downward recessed chip removal groove.

[0009] Further, the edge of the annular boss is provided with a chamfer structure.

[0010] Further, the top end surface of the through hole is provided with a waterproof boss.

[0011] Further, the waterproof boss is provided with an upward protruding semicircular rib on one side close to the top of the motor cover.

[0012] Further, the buckle structure includes a clamping hook on the motor cover and a clamping groove on the bottom shell, and the clamping groove is adapted to the clamping hook.

[0013] Further, the clamping hook is a circular arc clamping hook structure, and the front and back surfaces of the clamping hook are both provided with a reinforcing rib structure.

[0014] Further, the motor is provided with a positioning structure, and the inner sides of the motor cover and the bottom shell are both provided with a positioning groove adapted to the positioning structure, so that the motor cover and the bottom shell can fix the motor in the radial direction, the axial direction and the circumferential direction.

[0015] An air conditioner is provided with a motor for driving the rotation of a fan blade, and the motor is installed in the motor fixing structure of any one of the above.

[0016] The motor fixing structure and the air conditioner thereof can realize rapid preliminary positioning and connection through the buckle structure on the first end of the motor cover and the bottom shell perpendicular to the motor axis; then through the clamping fit between the through hole on the second end of the motor cover perpendicular to the motor axis and the annular boss on the screw column on the second end of the bottom shell perpendicular to the motor axis, and then screwing the screw into the screw column through the through hole, accurate positioning and assembly fixing can be realized; and since at least two anti-cracking notches are arranged on the annular boss, the screw column has a swelling elastic deformation trend, so that the swelling force generated when the screw is tightened can be prevented from causing the screw column to crack; therefore, compared with the prior art, not only can the assembly action be simplified and the assembly efficiency be improved, but also the positioning accuracy can be improved, the screw can be prevented from being deviated, the screw column can be prevented from being cracked, and the like, so that the production quality is improved.

[0017] Further, the anti-cracking notch is arranged as a "┌" structure, which can better disperse the stress concentration problem of the screw post root, make the elasticity of the anti-cracking notch better, and also can consider the chip removal effect, and can more effectively prevent the screw post from cracking.

[0018] Further, by arranging the downward recessed chip removal groove on the inner side of the annular boss, the generated waste chip during the screwing of the screw can be stored, the screw post is prevented from expanding and cracking due to the waste chip storage, and the screw post cracking problem can be further prevented.

[0019] Further, by arranging the chamfer structure on the edge of the annular boss, the annular boss on the screw post can be more accurately and quickly clamped into the through hole from the bottom of the through hole, more accurate and fast positioning is realized, and the annular boss can also prevent the through hole from being scratched.

[0020] Further, by arranging the waterproof boss, semicircular rib on the top end face of the through hole, the condensed water flowing down from the motor cover can be prevented from entering the screw to cause the screw to rust. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the motor structure.

[0022] Figure 2 It is an explosion diagram of the motor fixing structure (including the motor).

[0023] Figure 3 It is a schematic diagram of the motor fixing structure Figure 1 (including the motor).

[0024] Figure 4 It is a schematic diagram of the motor fixing structure Figure 2 (including the motor).

[0025] Figure 5 It is Figure 4 A-A cross-sectional view.

[0026] Figure 6 It is Figure 5 A local enlarged view of the A part.

[0027] Figure 7 It is a schematic diagram of the motor cover structure Figure 1 .

[0028] Figure 8 It is a schematic diagram of the motor cover structure Figure 2 .

[0029] Figure 9 It is a schematic diagram of the bottom shell structure.

[0030] Figure 10 for Figure 9 A magnified view of part B in the middle.

[0031] Figure 11 Schematic diagram of screw post structure Figure 1 .

[0032] Figure 12 Schematic diagram of screw post structure Figure 2 .

[0033] The attached diagram is labeled as follows: 1 is the motor, 11 is the positioning structure, 12 is the output end, 2 is the motor cover, 21 is the through hole, 211 is the waterproof boss, 212 is the semi-circular rib, 22 is the hook, 3 is the bottom shell, 31 is the screw post, 311 is the annular boss, 312 is the anti-cracking notch, 313 is the chip removal groove, 314 is the chamfered structure, 32 is the slot, 4 is the screw, and 5 is the positioning groove. Detailed Implementation

[0034] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. For ease of explanation, the terms "front," "rear," "positive," "negative," "left," "right," "top," "bottom," "upper," "lower," "inner," "outer," and "inner" in this utility model indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model or limitations on the actual orientation of the product or device during production, use, sales, etc. In addition, in the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "composition" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0035] This utility model provides a motor fixing structure that can be used in the assembly of motor 1, realizing the installation and fixing of motor 1 in various equipment. It not only improves assembly efficiency but also prevents misalignment and cracking, thereby improving production quality. In this utility model, [the following is used as an example]... Figure 1 The motor fixing structure is described using the motor 1 assembly in the air conditioner shown as an example; of course, the motor fixing structure can also be applied to other related equipment, and there are no restrictions here.

[0036] like Figures 2 to 6 The diagram shown is a schematic representation of the motor fixing structure. Specifically, the motor fixing structure includes a motor cover 2 and a bottom shell 3, wherein:

[0037] The motor cover 2 and the bottom shell 3 are provided with a containing cavity which is adapted to the motor 1 and can contain the motor 1; in the embodiment, the motor cover 2 is above the motor 1, the bottom shell 3 is below the motor 1, and the bottom of the motor cover 2 and the top of the bottom shell 3 are attached to the motor 1; it should be noted that in the air conditioner of the embodiment, the bottom shell 3 is an integrated structure with the air conditioner bottom shell, but in actual application, or in other devices, the bottom shell 3 can also be a separate component, which is not limited here.

[0038] The first end of the motor cover 2 and the bottom shell 3 perpendicular to the axis of the motor 1 (in the embodiment, the first end of the motor cover 2 and the bottom shell 3 perpendicular to the axis of the motor 1 refers to the right side end in Figure 3 、 Figure 4 ) is connected by a buckle structure;

[0039] The second end of the motor cover 2 and the bottom shell 3 perpendicular to the axis of the motor 1 (in the embodiment, the second end of the motor cover 2 and the bottom shell 3 perpendicular to the axis of the motor 1 refers to the left side end in Figure 3 、 Figure 4 ) is fixed by a screw 4; specifically, as shown in Figure 7 、 Figure 8 , the second end of the motor cover 2 perpendicular to the axis of the motor 1 is provided with at least one through hole 21 (in the embodiment, the number of the through hole 21 is two; in actual application, the specific number and position of the through hole 21 can be determined as needed, which is not limited here); as shown in Figure 9 , the second end of the bottom shell 3 perpendicular to the axis of the motor 1 is provided with at least one screw column 31 (in the embodiment, the number of the screw column 31 is also two; in actual application, the specific number and position of the screw column 31 can be determined as needed, which is adapted to the number and position of the through hole 21, which is not limited here), and the screw column 31 is adapted to the screw 4, so that the screw 4 can be screwed into the screw column 31 and threadedly connected with the inner side wall of the screw column 31; as shown in Figure 6 、 Figure 10 , the top end surface of the screw column 31 is provided with an annular boss 311, which is adapted to the inner diameter and depth of the through hole 21, so that the annular boss 311 can be clamped into the through hole 21 from the bottom of the through hole 21 to achieve accurate positioning; at the same time, at least two anti-cracking notches 312 are provided on the annular boss 311, which penetrate from the outer side wall to the inner side wall of the annular boss 311; preferably, the at least two anti-cracking notches 312 are uniformly distributed on the annular boss 311, and the anti-cracking effect will be better; in the embodiment, as shown in Figure 11As shown, the number of anti-cracking notches 312 is two, which are symmetrically distributed on both sides, but in actual application, it can also be set to three, four, etc., which is not limited here, for example Figure 12 As shown, the number of anti-cracking notches 312 is four.

[0040] In assembly, the specific operation steps are as follows: (1) Place the motor 1 on the corresponding position of the bottom shell 3; (2) Connect the motor cover 2 and the bottom shell 3 perpendicular to the first end of the motor 1 axis through the buckle structure; (3) Press down the motor cover 2, assemble the through hole 21 on the second end of the motor cover 2 perpendicular to the motor 1 axis with the annular boss 311 on the screw column 31 on the second end of the bottom shell 3 perpendicular to the motor 1 axis, so that the annular boss 311 is clamped into the through hole 21 from the bottom of the through hole 21, achieving accurate positioning; (4) Screw the screw 4 through the through hole 21 into the screw column 31, achieving fixed assembly of the motor cover 2 and the bottom shell 3, so that the motor 1 between the motor cover 2 and the bottom shell 3 can also be fixed and installed.

[0041] The motor fixing structure with the above structure can first realize rapid preliminary positioning and connection through the buckle structure of the motor cover 2 and the bottom shell 3 perpendicular to the first end of the motor 1 axis; then through the clamping fit between the through hole 21 on the second end of the motor cover 2 perpendicular to the motor 1 axis and the annular boss 311 on the screw column 31 on the second end of the bottom shell 3 perpendicular to the motor 1 axis, and then screwing the screw 4 through the through hole 21 into the screw column 31, accurate positioning and assembly can be achieved; and since the annular boss 311 is provided with at least two anti-cracking notches 312, the screw column 31 has a swelling elastic deformation trend, so that the swelling force generated when the screw 4 is tightened can be prevented from causing the screw column 31 to crack; therefore, compared with the prior art, not only can the assembly action be simplified and the assembly efficiency be improved, but also the positioning accuracy can be improved, and problems such as the screw 4 being off-center and the screw column 31 being cracked can be prevented, thereby improving production quality.

[0042] In some embodiments, the anti-cracking notch 312 is in a "┐" structure, that is, as shown in Figure 11 As shown, the anti-cracking notch 312 penetrates from the outer sidewall of the annular boss 311 to the inner sidewall, and then continues to extend downward longitudinally on the inner side of the annular boss 311.

[0043] The motor fixing structure with the above structure sets the anti-cracking notch 312 as a "┐" structure, can better disperse the stress concentration problem of the root of the screw column 31, makes the elasticity of the anti-cracking notch 312 better, and can also consider the chip removal effect, and can more effectively prevent the problem of cracking of the screw column 31.

[0044] In some embodiments, as shown in Figure 6 、 Figure 10 、 Figure 11 、 Figure 12 The inner side of the annular boss 311 is provided with a downward recessed chip removal groove 313, which can be used to store the waste generated when the screw 4 is tightened; in this embodiment, the chip removal groove 313 is located on the inner side of the annular boss 311 and also has a ring structure. Of course, it can also be other shapes and structures, as long as it can be used to store the waste generated when the screw 4 is tightened. Here, no limitation is made.

[0045] The motor fixing structure with the above structure sets the anti-cracking notch 312 as a "┐" structure, can better disperse the stress concentration problem of the root of the screw column 31, makes the elasticity of the anti-cracking notch 312 better, and can also consider the chip removal effect, and can more effectively prevent the problem of cracking of the screw column 31.

[0046] In some embodiments, as shown in Figure 6 、 Figure 10 、 Figure 11 、 Figure 12 The edge of the annular boss 311 is provided with a chamfer structure 314.

[0047] The motor fixing structure with the above structure sets the anti-cracking notch 312 as a "┐" structure, can better disperse the stress concentration problem of the root of the screw column 31, makes the elasticity of the anti-cracking notch 312 better, and can also consider the chip removal effect, and can more effectively prevent the problem of cracking of the screw column 31.

[0048] In some embodiments, as shown in Figure 7 The top end face of the through hole 21 is provided with an upward protruding waterproof boss 211.

[0049] The motor fixing structure with the above structure sets the anti-cracking notch 312 as a "┐" structure, can better disperse the stress concentration problem of the root of the screw column 31, makes the elasticity of the anti-cracking notch 312 better, and can also consider the chip removal effect, and can more effectively prevent the problem of cracking of the screw column 31.

[0050] In some embodiments, the waterproof boss 211 is provided with an upward protruding semicircular rib 212 near one side of the top of the motor cover 2.

[0051] The motor fixing structure with the above structure can better prevent condensed water flowing down from the motor cover 2 from entering the screw 4 to cause the screw 4 to rust, thereby further improving the waterproof performance.

[0052] In some embodiments, the buckle structure includes a buckle 22 on the motor cover 2 and a clamping groove 32 on the bottom shell 3, and the clamping groove 32 is adapted to the buckle 22, so that the buckle 22 can be inserted into the clamping groove 32 to achieve a movable connection.

[0053] The motor fixing structure with the above structure can more conveniently and quickly achieve the assembly between the motor cover 2 and the bottom shell 3, thereby improving the assembly efficiency.

[0054] In some embodiments, as shown in Figure 7 , Figure 8 The buckle 22 is a circular arc buckle structure, and the front and back surfaces of the buckle 22 are provided with reinforcing rib structures.

[0055] The motor fixing structure with the above structure can make the buckle 22 more smoothly slide into the clamping groove 32 when cooperating with the clamping groove 32, thereby reducing the requirement of insertion force, improving the assembly efficiency, and also uniformly bearing stress, thereby reducing the risk of fracture caused by local stress concentration.

[0056] In some embodiments, as shown in Figure 1 The motor 1 is provided with a positioning structure 11 in addition to the output end 12, and the inner side of the motor cover 2 and the bottom shell 3 (i.e., the side close to the motor 1 during assembly) is provided with a positioning groove 5 adapted to the positioning structure 11, so that the motor cover 2 and the bottom shell 3 can fix the motor 1 in the radial direction, the axial direction and the circumferential direction, i.e., cannot move horizontally, vertically or rotate, thereby making the assembly of the motor 1 more stable and reliable.

[0057] The utility model also provides a kind of air conditioner, the air conditioner is provided with the motor 1 for driving fan blade rotation, and the motor 1 is installed in the motor fixing structure described in any one of the above, not only can simplify air conditioner production assembly action, improve production efficiency, but also can improve production quality.

[0058] The above embodiments are only preferred embodiments of the present application, and do not limit the scope of the present application. Any equivalent changes made in shape, structure and principle according to the present application should be covered in the protection scope of the present application.

Claims

1. A motor fixing structure, characterized in that, The device includes a motor cover (2) and a bottom shell (3), and a receiving cavity adapted to and capable of accommodating the motor (1) is provided between the motor cover (2) and the bottom shell (3); the first end of the motor cover (2) and the bottom shell (3) perpendicular to the axis of the motor (1) is connected by a snap-fit ​​structure, and the second end perpendicular to the axis of the motor (1) is fixed by a screw (4); specifically, the second end of the motor cover (2) perpendicular to the axis of the motor (1) is provided with at least one through hole (21); the bottom shell (3) At least one screw post (31) adapted to the screw (4) is provided at the second end perpendicular to the axis of the motor (1). The top end face of the screw post (31) is provided with an annular boss (311) adapted to the through hole (21) and capable of being inserted into the through hole (21) from the bottom. The annular boss (311) is provided with at least two anti-cracking notches (312). The anti-cracking notches (312) penetrate from the outer side wall to the inner side wall of the annular boss (311).

2. The motor fixing structure according to claim 1, characterized in that, The anti-cracking notch (312) has a "┐" structure, which extends longitudinally downward from the outer side wall of the annular boss (311) to the inner side wall.

3. The motor fixing structure according to claim 1, characterized in that, The inner side of the annular boss (311) is provided with a downwardly recessed chip removal groove (313).

4. The motor fixing structure according to claim 1, characterized in that, The edge of the annular boss (311) is provided with a chamfered structure (314).

5. The motor fixing structure according to any one of claims 1 to 4, characterized in that, A waterproof boss (211) is provided on the top end face of the through hole (21).

6. The motor fixing structure according to claim 5, characterized in that, The waterproof boss (211) has an upwardly protruding semi-circular rib (212) on one side near the top of the motor cover (2).

7. The motor fixing structure according to any one of claims 1 to 4, characterized in that, The buckle structure includes a hook (22) on the motor cover (2) and a slot (32) on the bottom shell (3), and the slot (32) is adapted to the hook (22).

8. The motor fixing structure according to claim 7, characterized in that, The hook (22) is an arc-shaped hook structure, and the front and back of the hook (22) are provided with reinforcing ribs.

9. The motor fixing structure according to any one of claims 1 to 4, characterized in that, The motor (1) is provided with a positioning structure (11), and the inner sides of the motor cover (2) and the bottom shell (3) are provided with positioning grooves (5) that are adapted to the positioning structure (11), so that the motor cover (2) and the bottom shell (3) can fix the motor (1) in the radial, axial and circumferential directions.

10. An air conditioner, comprising a motor (1) for driving the fan blades to rotate, characterized in that, The motor (1) is installed in the motor fixing structure described in any one of claims 1 to 9.

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