End cover sealing structure of air conditioner motor

Abstract

The utility model discloses an end cover sealing structure of an air conditioner motor, which relates to the technical field of motor equipment and comprises an end cover main body, a plurality of positioning blocks fixedly arranged on the outer side wall of the end cover main body, a sealing rubber pad fixedly arranged at the bottom end of the end cover main body, a bearing arranged on the inner side of the end cover main body, and a shaft hole arranged on the inner side of the bearing. A clamping groove is formed in the bottom end of the end cover body, a motor shell is arranged in the clamping groove in a matched mode, and a plurality of first clamping assemblies and second clamping assemblies are symmetrically arranged at the bottom end of the end cover body. According to the utility model, through the arrangement of the first clamping assembly, the outer side wall of the first arc-shaped pressing plate is attached to the inner side wall of the motor shell under the counter-acting force of the first functional spring, so that the looseness of bolts on the motor shell and the end cover main body caused by the vibration of the motor is avoided, and the stability of the device is improved; and under the counter-acting force of a second functional spring, a rotating rod outwards pushes a second arc-shaped pressing plate, so that a clamping groove and the motor shell are matched more tightly.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning motors, in particular to an end cover sealing structure of an air-conditioning motor. Background Art

[0002] The motor is a commonly used driving device in mechanical equipment. The outside of the motor is composed of a shell and an end cover. The motor end cover is used to support the internal motor shaft and bearings of the shell. Some motors used in relatively humid environments need to ensure the sealing between the end cover and the shell. Therefore, a motor end cover sealing structure is required. The existing motor end cover sealing structure still has some defects when used.

[0003] Application number: CN202222803176.3 discloses a motor end cover sealing structure, which belongs to the technical field of motor end covers, and aims to solve the problem that the sealing structure on the existing motor end cover cannot be removed without disassembling the end cover, and the bolts cannot be guaranteed to be always in a screwed-in state. The structure comprises an end cover body, a first sealing gasket is arranged at the lower part of the rear side of the end cover body, a second sealing gasket is arranged at the upper part of the rear side of the end cover body, a first connecting gasket is fixedly arranged on the edges of the first sealing gasket and the second sealing gasket, and a connecting plate is fixedly connected to the four sides of the end cover body, and screw holes are opened inside the connecting plate.

[0004] However, the above device only ensures the sealing state during use by the screwing state of the bolts, but the damping pad is smaller than the bolts, and the damping pad is part of the end cover, so that after the end cover is used for a long time, the damping pad is damaged due to long-term vibration and the screwing state of the bolts, thereby affecting the service life of the end cover and the normal operation of the subsequent motor. Therefore, it is necessary to propose an end cover sealing structure of an air conditioner motor. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an end cover sealing structure for an air conditioner motor.

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

[0007] An end cover sealing structure of an air-conditioning motor comprises an end cover body, a plurality of positioning blocks are fixedly installed on the outer side wall of the end cover body, a sealing rubber pad is fixedly installed on the bottom end of the end cover body, a bearing is arranged on the inner side of the end cover body, an axial hole is opened on the inner side of the bearing, the end cover body is clamped with the motor housing through a clamping groove, a clamping groove is opened on the bottom end of the end cover body, the motor housing is matched with the clamping groove, a plurality of first clamping components are symmetrically arranged on the bottom end of the end cover body, and a plurality of second clamping components are symmetrically arranged on the bottom end of the end cover body.

[0008] Preferably, the first clamping assembly comprises a fixed cavity fixedly mounted at the bottom end of the end cover body, a limit plate is movably arranged in the fixed cavity, and a first functional spring is elastically connected between the limit plate and the bottom end of the fixed cavity;

[0009] A sliding column is slidably arranged in the fixed cavity, and the sliding column slides through the fixed cavity, the end of the sliding column is fixedly connected to the limit plate, and the other end of the sliding column is fixedly installed with a first arc-shaped pressing plate;

[0010] After the engagement groove and the motor housing are matched, the inner wall of the motor housing compresses the first functional spring through the sliding column and the limit plate, and the first arc-shaped pressure plate is pushed through the limit plate and the first functional spring under the reaction force of the first functional spring, so that the outer wall of the first arc-shaped pressure plate fits with the inner wall of the motor housing, avoiding loosening of the bolts on the motor housing and the end cover body due to motor vibration, thereby improving the stability of the device and ensuring the matching of the engagement groove and the motor housing.

[0011] Preferably, the second clamping assembly comprises a fixed column fixedly mounted on the bottom end of the end cover body, a pair of rotating rods are rotatably sleeved on the fixed column, and a second arc-shaped pressing plate is rotatably mounted on one end of the pair of rotating rods close to the outer side of the end cover body;

[0012] A pair of rotating rods are rotatably mounted on two ends of the inner side wall of the second arc-shaped pressing plate respectively, and a fixed mounting block is fixedly mounted on the other ends of the pair of rotating rods, and a second functional spring is elastically connected between the fixed mounting blocks;

[0013] After the engagement groove and the motor housing are matched, the outer wall of the second arc-shaped pressure plate is fitted with the inner wall of the motor housing, and the second arc-shaped pressure plate pushes the rotating rod to make the rotating rod rotate outward, thereby increasing the distance between the fixed mounting blocks, so that the fixed mounting blocks stretch the second functional spring. Under the reaction force of the second functional spring, the fixed mounting blocks tend to be pulled closer, thereby causing the rotating rod to push the second arc-shaped pressure plate outward, thereby making the engagement groove and the motor housing fit more closely.

[0014] Preferably, a threaded mounting hole penetrating the positioning block is provided on the positioning block.

[0015] The utility model has the following beneficial effects:

[0016] 1. By setting the first clamping assembly, the first arc-shaped pressure plate is pushed through the limit plate and the first functional spring under the reaction force of the first functional spring, so that the outer wall of the first arc-shaped pressure plate is fitted with the inner wall of the motor housing, and the functional spring absorbs the vibration, thereby improving the stability of the device and ensuring the sealing state during use.

[0017] 2. By setting up the second clamping assembly, under the reaction force of the second functional spring, the fixed mounting block tends to be pulled closer, so that the rotating rod pushes the second arc pressure plate outward, and the inner wall of the motor housing is subjected to the outward force of the second arc pressure plate. The second functional spring absorbs the vibration of the motor to prevent the internal structure of the end cover from being damaged by the vibration of the motor after long-term use, thereby affecting the service life of the end cover and the normal operation of the subsequent motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of an end cover sealing structure of an air-conditioning motor proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the matching structure of the clamping groove and the motor housing of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the first clamping assembly of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the second clamping assembly of the utility model.

[0022] In the figure: 1. end cover body; 2. positioning block; 21. threaded mounting hole; 3. sealing rubber pad; 4. bearing; 5. shaft hole; 6. snap-fit ​​groove; 7. motor housing; 8. first clamping assembly; 81. fixed cavity; 82. limit plate; 83. first functional spring; 84. sliding column; 85. first arc-shaped pressure plate; 9. second clamping assembly; 91. fixed column; 92. rotating rod; 93. second arc-shaped pressure plate; 94. fixed mounting block; 95. second functional spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Reference Figure 1-4A sealing structure of an end cover of an air-conditioning motor comprises an end cover body 1 and a motor housing 7, a plurality of positioning blocks 2 are fixedly installed on the outer wall of the end cover body 1, a sealing rubber pad 3 is fixedly installed on the bottom end of the end cover body 1, a bearing 4 is arranged on the inner side of the end cover body 1, an axial hole 5 is opened on the inner side of the bearing 4, a clamping groove 6 is opened on the bottom end of the end cover body 1, the end cover body 1 is clamped with the motor housing 7 through the clamping groove 6, a plurality of first clamping components 8 are symmetrically arranged on the bottom end of the end cover body 1, a plurality of second clamping components 9 are symmetrically arranged on the bottom end of the end cover body 1, a limiting protrusion is arranged on the inner side of the motor housing 7, and the limiting protrusion limits the first clamping component 8 and the second clamping component 9.

[0026] After the engagement groove 6 and the motor housing 7 are matched, the first clamping assembly 8 and the second clamping assembly 9 work, so that under the reaction force of the first functional spring 83 and the second functional spring 95, the outer wall of the first arc-shaped pressure plate 85 is pressed and fitted with the inner wall of the motor housing 7, thereby avoiding loosening of the bolts on the motor housing 7 and the end cover body 1 due to motor vibration, improving the stability of the device, and ensuring the sealing state during use. The outer wall of the second arc-shaped pressure plate 93 is pressed and fitted with the inner wall of the motor housing 7, thereby ensuring that the engagement groove 6 and the motor housing 7 are more closely matched.

[0027] The first clamping assembly 8 includes a fixed cavity 81 fixedly mounted at the bottom end of the end cover body 1 , a limit plate 82 is movably arranged in the fixed cavity 81 , and a first functional spring 83 is elastically connected between the limit plate 82 and the bottom end of the fixed cavity 81 .

[0028] A sliding column 84 is slidably disposed in the fixed cavity 81 . The sliding column 84 slides through the fixed cavity 81 . The end of the sliding column 84 is fixedly connected to the limit plate 82 . The other end of the sliding column 84 is fixedly mounted with a first arc-shaped pressing plate 85 .

[0029] The second clamping assembly 9 includes a fixed column 91 fixedly mounted on the bottom end of the end cover body 1 , a pair of rotating rods 92 are rotatably sleeved on the fixed column 91 , and a second arc-shaped pressing plate 93 is rotatably mounted on one end of the pair of rotating rods 92 close to the outer side of the end cover body 1 .

[0030] A pair of rotating rods 92 are rotatably mounted on the two ends of the inner wall of the second arc-shaped pressing plate 93 respectively, and the other ends of the pair of rotating rods 92 are fixedly mounted with fixed mounting blocks 94 , and the second functional springs 95 are elastically connected between the fixed mounting blocks 94 .

[0031] The positioning block 2 is provided with a threaded mounting hole 21 penetrating through the positioning block 2 .

[0032] In the present invention, after the engaging groove 6 is matched with the motor housing 7, the inner wall of the motor housing 7 compresses the first functional spring 83 through the sliding column 84 and the limiting plate 82, and the first arc-shaped pressing plate 85 is pushed by the limiting plate 82 and the first functional spring 83 under the reaction force of the first functional spring 83, so that the outer wall of the first arc-shaped pressing plate 85 is in contact with the inner wall of the motor housing 7, and the outer wall of the second arc-shaped pressing plate 93 is in contact with the inner wall of the motor housing 7, and the second arc-shaped pressing plate 93 pushes the rotating rod 92, so that the rotating rod 92 rotates outward, increasing the distance between the fixed mounting blocks 94, so that the fixed mounting blocks 94 can move the second functional spring 83 to the inner wall of the motor housing 7. The energy spring 95 is stretched, and under the reaction force of the second function spring 95, the fixed mounting block 94 tends to be pulled closer, so that the rotating rod 92 pushes the second arc pressure plate 93 outward, and the limiting protrusion limits the first arc pressure plate 85 and the second arc pressure plate 93 to prevent the first arc pressure plate 85 and the second arc pressure plate 93 from sliding outward along the inner wall of the motor housing 7 due to vibration, so that when the motor is working, the motor housing 7 is always in close contact with the rubber pad, avoiding the loosening of the bolts on the motor housing and the end cover body due to motor vibration, thereby improving the stability of the device and ensuring the sealing state during use.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An end cover sealing structure of an air conditioner motor, comprising a motor housing (7) and an end cover body (1), characterized in that: A plurality of positioning blocks (2) are fixedly mounted on the outer wall of the end cover body (1); a sealing rubber pad (3) is fixedly mounted on the bottom end of the end cover body (1); an axial hole (5) is provided on the inner side of the end cover body (1); a bearing (4) is provided on the inner side of the axial hole (5); a clamping groove (6) is provided on the bottom end of the end cover body (1); the end cover body (1) is clamped with the motor housing (7) through the clamping groove (6); a plurality of first clamping assemblies (8) are symmetrically arranged on the bottom end of the end cover body (1); and a plurality of second clamping assemblies (9) are symmetrically arranged on the bottom end of the end cover body (1).

2. The end cover sealing structure of an air conditioner motor according to claim 1, characterized in that: The first clamping assembly (8) comprises a fixed cavity (81) fixedly mounted on the bottom end of the end cover body (1), a limit plate (82) being movably arranged in the fixed cavity (81), and a first functional spring (83) being connected between the limit plate (82) and the bottom end of the fixed cavity (81).

3. The end cover sealing structure of an air conditioner motor according to claim 2, characterized in that: A sliding column (84) is slidably disposed in the fixed cavity (81), and the sliding column (84) slides through to the outside of the fixed cavity (81). The end of the sliding column (84) is fixedly connected to the limit plate (82), and the other end of the sliding column (84) is fixedly mounted with a first arc-shaped pressing plate (85).

4. The end cover sealing structure of an air conditioner motor according to claim 1, characterized in that: The second clamping assembly (9) comprises a fixed column (91) fixedly mounted on the bottom end of the end cover body (1), a pair of rotating rods (92) being rotatably sleeved on the fixed column (91), and a second arc-shaped pressing plate (93) being rotatably mounted on one end of the pair of rotating rods (92) close to the outer side of the end cover body (1).

5. The end cover sealing structure of an air conditioner motor according to claim 4, characterized in that: The pair of rotating rods (92) are rotatably mounted on the two ends of the inner wall of the second arc-shaped pressure plate (93), respectively; the other ends of the pair of rotating rods (92) are fixedly mounted with fixed mounting blocks (94), and the second functional springs (95) are connected between the fixed mounting blocks (94).

6. The end cover sealing structure of an air conditioner motor according to claim 1, characterized in that: The positioning block (2) is provided with a threaded mounting hole (21) penetrating the positioning block (2).

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