Brushless motor end cover connecting structure of dust collector

Abstract

The utility model discloses a dust collector brushless motor end cover connecting structure, which relates to the technical field of end cover connection, and comprises a cylinder body and a clamping mechanism, the front surface of the cylinder body is provided with an end cover and a plurality of ventilation slots, the clamping mechanism comprises a first clamping block, and the first clamping block is fixedly connected to the inner wall of each ventilation slot. The back face of the end cover is fixedly connected with a connecting block, and the outer wall of the connecting block is fixedly connected with a second clamping block. By means of the arrangement of the first clamping block, the connecting block and the second clamping block, when the end cover and the cylinder body need to be fixed, the connecting block and the second clamping block abut against the inner wall of the ventilation groove, then the end cover is rotated till the first clamping block is inserted between the end cover and the second clamping block, and at the moment, the end cover and the cylinder body can be limited; therefore, after the fixing mechanism fixes the end cover and the cylinder body, as long as the fixing mechanism is not completely unlocked, the phenomenon that the end cover is separated from the cylinder body does not occur, so that the use stability of the end cover is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of end cover connection, in particular to an end cover connection structure of a brushless motor of a vacuum cleaner. Background Art

[0002] The brushless motor of a vacuum cleaner is a motor that does not require carbon brushes for rotor transmission and has the advantages of high efficiency, low noise and long life.

[0003] The housing of the brushless motor is composed of a cylinder and an end cover. By connecting and fixing the end cover and the cylinder, the housing of the brushless motor can be assembled for use.

[0004] The end cover and the cylinder are generally connected and fixed by bolts, but the brushless motor will generate vibrations during operation, which can easily cause the bolts used for connection and fixing to loosen. There is no other limit between the end cover and the cylinder, resulting in a gap between the end cover and the cylinder after the bolts loosen, thereby reducing the stability of the end cover. Utility Model Content

[0005] The purpose of the present utility model is to provide a brushless motor end cover connection structure for a vacuum cleaner to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a vacuum cleaner brushless motor end cover connection structure, comprising:

[0007] A cylinder, wherein an end cover is provided on the front of the cylinder, and a plurality of ventilation slots are opened on the front of the cylinder;

[0008] A clamping mechanism is arranged between the cylinder and the end cover, and the clamping mechanism includes a first clamping block, the first clamping block is fixedly connected to the inner wall of the ventilation groove, the back of the end cover is fixedly connected with a connecting block, the outer wall of the connecting block is fixedly connected with a second clamping block, the first clamping block is inserted between the second clamping block and the end cover, and a fixing mechanism is provided between the end cover and the cylinder.

[0009] Preferably, the outer wall of the first clamping block is provided with a first inclined surface, and the outer wall of the second clamping block is provided with a second inclined surface.

[0010] Preferably, the fixing mechanism includes a fixing bolt, the inner wall of the cylinder is fixedly connected with a fixing block, the front of the fixing block is provided with a threaded hole, one end of the fixing bolt passes through the front of the end cover and is threadedly connected to the inner wall of the threaded hole.

[0011] Preferably, a connecting pipe is fixedly connected to the front side of the cylinder, and a wire passing mechanism is provided inside the connecting pipe.

[0012] Preferably, the wire passing mechanism includes a rubber sleeve, the outer wall of the rubber sleeve is movably connected to the inner wall of the connecting pipe, and a wire passing hole is provided on the front side of the rubber sleeve.

[0013] Preferably, a plurality of semicircular protrusions are fixedly connected to the inner wall of the connecting pipe, and the plurality of semicircular protrusions are arranged with an interference fit with the outer wall of the rubber sleeve.

[0014] Preferably, a card slot is provided on the outer wall of the first connecting block, a card plate is fixedly connected to the outer wall of the connecting block, and the outer wall of the card plate is movably connected to the inner wall of the card slot.

[0015] Technical effects and advantages of this utility model:

[0016] The utility model utilizes the arrangement of the first clamping block, the connecting block and the second clamping block. When the end cover and the cylinder body need to be fixed, the end cover is picked up so that the connecting block and the second clamping block are against the inner wall of the ventilation groove, and then the end cover is rotated until the first clamping block is inserted between the end cover and the second clamping block. At this time, the end cover and the cylinder body can be limited by the mutual limitation of the second clamping block and the first clamping block. Therefore, when the fixing mechanism fixes the end cover and the cylinder body, as long as the fixing mechanism is not completely unlocked, the end cover and the cylinder body will not be separated, thereby improving the stability of the end cover in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the end cover of the utility model.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the cylinder of the utility model.

[0020] Figure 4 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A.

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the second clamping block of the present invention.

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the first clamping block of the utility model.

[0023] In the figure: 101, cylinder; 102, end cover; 103, ventilation slot; 201, first clamping block; 202, connecting block; 203, second clamping block; 301, first inclined surface; 302, second inclined surface; 401, fixing block; 402, threaded hole; 403, fixing bolt; 501, connecting pipe; 502, rubber sleeve; 601, semicircular protrusion; 701, clamping plate; 702, clamping slot. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The utility model provides Figures 1-6 The end cap connection structure of the brushless motor of the vacuum cleaner shown includes a barrel 101 and a clamping mechanism. The front of the barrel 101 is provided with an end cap 102. The front of the barrel 101 is provided with a plurality of ventilation slots 103. The stator, rotor and commutation control circuit of the brushless motor are installed inside the barrel 101. At the same time, the fan blades are also arranged inside the barrel 101. When the fan blades are working, ventilation is carried out through the ventilation slots 103 to ensure a stable flow in the barrel 101. The end cap 102 is then fixed to the barrel 101 to assemble the brushless motor of the vacuum cleaner for use.

[0026] In a preferred embodiment, the clamping mechanism is arranged between the cylinder 101 and the end cover 102, and the clamping mechanism includes a first clamping block 201, the first clamping block 201 is fixedly connected to the inner wall of the ventilation slot 103, the back of the end cover 102 is fixedly connected with the connecting block 202, and the outer wall of the connecting block 202 is fixedly connected with the second clamping block 203. The first clamping block 201 is inserted between the second clamping block 203 and the end cover 102, and a fixing mechanism is provided between the end cover 102 and the cylinder 101. When the end cover 102 and the cylinder 101 need to be fixed, the end cover 102 is picked up. , so that the connecting block 202 and the second clamping block 203 are against the inner wall of the ventilation groove 103, and then the end cover 102 is rotated until the first clamping block 201 is inserted between the end cover 102 and the second clamping block 203. At this time, the end cover 102 and the cylinder 101 can be limited by the mutual limitation of the second clamping block 203 and the first clamping block 201. Therefore, when the fixing mechanism fixes the end cover 102 and the cylinder 101, as long as the fixing mechanism is not completely unlocked, the end cover 102 will not be separated from the cylinder 101, thereby improving the stability of the end cover 102 in use.

[0027] Among them, the outer wall of the first clamping block 201 is provided with a first inclined surface 301, and the outer wall of the second clamping block 203 is provided with a second inclined surface 302. Through the setting of the first inclined surface 301 and the second inclined surface 302, the first clamping block 201 can be more stably inserted between the second clamping block 203 and the end cover 102 when the end cover 102 rotates, thereby improving the convenience of operating the clamping mechanism.

[0028] The fixing mechanism includes a fixing bolt 403, and a fixing block 401 is fixedly connected to the inner wall of the cylinder 101. A threaded hole 402 is provided on the front of the fixing block 401. One end of the fixing bolt 403 passes through the front of the end cover 102 and is threadedly connected to the inner wall of the threaded hole 402. When the end cover 102 is connected to the ventilation slot 103, the end cover 102 is rotated to make the first clamping block 201 fit between the second clamping block 203 and the end cover 102. Then, the fixing bolt 403 passes through the front of the end cover 102 and is screwed into the threaded hole 402 until the fixing bolt 403 is tightened in the threaded hole 402. The end cover 102 can be stably connected to the cylinder 101. At this time, even if the fixing bolt 403 is tightened, 3. In order to prevent the end cover 102 from being loosened in the threaded hole 402, the first clamping block 201 and the second clamping block 203 are mutually engaged, so that the end cover 102 will not be separated from the cylinder 101. As long as the fixing bolt 403 is not completely separated from the threaded hole 402, the end cover 102 can be stably connected to the cylinder 101, thereby improving the stability of the connection between the end cover 102 and the cylinder 101. When the end cover 102 is aligned with the cylinder 101, the fixing bolt 403 passes through the end cover 102 and is screwed into the threaded hole 402, so that the end cover 102 can no longer rotate, and the first clamping block 201 and the second clamping block 203 can be stably engaged, thereby ensuring the stability of the clamping mechanism.

[0029] Among them, the outer wall of the first clamping block 201 is provided with a clamping groove 702, and the outer wall of the connecting block 202 is fixedly connected with a clamping plate 701, and the outer wall of the clamping plate 701 is movably connected with the inner wall of the clamping groove 702. When the end cover 102 is connected to the cylinder body 101, when the end cover 102 is rotated, the first clamping block 201 is inserted between the second clamping block 203 and the end cover 102, and the clamping plate 701 is also inserted into the clamping groove 702. The clamping groove 702 guides the clamping plate 701, so that the hole on the front side of the end cover 102 is automatically aligned with the threaded hole 402, so that after the fixing bolt 403 passes through the hole on the front side of the end cover 102, the fixing bolt 403 can be screwed into the threaded hole 402 until the fixing bolt 403 is tightened in the threaded hole 402, and the fixation of the end cover 102 and the cylinder body 101 is completed.

[0030] Among them, the front of the cylinder 101 is fixedly connected to a connecting tube 501, and a wire passing mechanism is provided inside the connecting tube 501. The wire passing mechanism includes a rubber sleeve 502. The outer wall of the rubber sleeve 502 is movably connected with the inner wall of the connecting tube 501. A wire passing hole is provided on the front of the rubber sleeve 502. The wires used by the brushless motor pass through the wire passing hole in the rubber sleeve 502. The provision of the rubber sleeve 502 prevents the wires from having hard contact, thereby preventing the wires from being damaged, thereby improving the protection effect of the brushless motor on the wires.

[0031] Among them, the inner wall of the connecting tube 501 is fixedly connected with a plurality of semicircular protrusions 601, and the plurality of semicircular protrusions 601 are arranged with an interference fit with the outer wall of the rubber sleeve 502. Through the arrangement of the semicircular protrusions 601, the friction force of the rubber sleeve 502 in the connecting tube 501 is increased, so that after the rubber sleeve 502 is inserted into the connecting tube 501, the rubber sleeve 502 will be squeezed by the semicircular protrusions 601 on the inner wall of the connecting tube 501, causing the outer wall of the rubber sleeve 502 to deform, thereby causing the rubber sleeve 502 to be subjected to a greater friction force in the connecting tube 501. If the rubber sleeve 502 is not subjected to a large external force, the rubber sleeve 502 can be stably inserted into the connecting tube 501, thereby improving the stability of the rubber sleeve 502 during use.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. The end cover connection structure of the brushless motor of the vacuum cleaner is characterized by: include: A cylinder (101), wherein an end cover (102) is provided on the front of the cylinder (101), and a plurality of ventilation slots (103) are opened on the front of the cylinder (101); A clamping mechanism is provided between the cylinder (101) and the end cover (102), the clamping mechanism comprising a first clamping block (201), the first clamping block (201) being fixedly connected to the inner wall of the ventilation slot (103), the back of the end cover (102) being fixedly connected to the connecting block (202), the outer wall of the connecting block (202) being fixedly connected to the second clamping block (203), the first clamping block (201) being inserted and provided between the second clamping block (203) and the end cover (102), and a fixing mechanism being provided between the end cover (102) and the cylinder (101).

2. The vacuum cleaner brushless motor end cover connection structure according to claim 1, characterized in that: The outer wall of the first clamping block (201) is provided with a first inclined surface (301), and the outer wall of the second clamping block (203) is provided with a second inclined surface (302).

3. The vacuum cleaner brushless motor end cover connection structure according to claim 1, characterized in that: The fixing mechanism comprises a fixing bolt (403), the inner wall of the cylinder (101) is fixedly connected with a fixing block (401), a threaded hole (402) is provided on the front of the fixing block (401), and one end of the fixing bolt (403) passes through the front of the end cover (102) and is threadedly connected to the inner wall of the threaded hole (402).

4. The vacuum cleaner brushless motor end cover connection structure according to claim 1, characterized in that: A connecting pipe (501) is fixedly connected to the front of the cylinder (101), and a wire passing mechanism is provided inside the connecting pipe (501).

5. The vacuum cleaner brushless motor end cover connection structure according to claim 4, characterized in that: The wire passing mechanism comprises a rubber sleeve (502), the outer wall of the rubber sleeve (502) is movably connected to the inner wall of the connecting pipe (501), and a wire passing hole is provided on the front side of the rubber sleeve (502).

6. The vacuum cleaner brushless motor end cover connection structure according to claim 5, characterized in that: The inner wall of the connecting tube (501) is fixedly connected with a plurality of semicircular protrusions (601), and the plurality of semicircular protrusions (601) are arranged in an interference fit with the outer wall of the rubber sleeve (502).

7. The vacuum cleaner brushless motor end cover connection structure according to claim 1, characterized in that: The outer wall of the first connecting block (201) is provided with a card slot (702), the outer wall of the connecting block (202) is fixedly connected with a card plate (701), and the outer wall of the card plate (701) is movably connected with the inner wall of the card slot (702).

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