Glue tank structure applied to motor

Abstract

The utility model provides a structure of applying a glue groove in a motor, which comprises an inner shell and an outer shell which are integrally formed, a stator chamber is arranged in the inner shell, at least one end of the stator chamber is provided with a bearing chamber with the inner diameter of D2, a bearing is arranged in the bearing chamber, and the inner diameter of the bearing chamber is D2. One end, far away from the stator chamber, of the bearing chamber is sequentially provided with a glue groove with the inner diameter of D3 and an annular step which is connected with the glue groove and has the inner diameter of D1, and D1 < lt >; d2lt; and D3, the glue groove is used for storing redundant glue to prevent the glue from permeating into the bearing to cause failure of the interior of the bearing, so that the stability of the motor is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to brushless motor technical field, concretely relates to a structure of glue groove is applied in motor. BACKGROUND

[0002] Bearing as important part of supporting rotation of rotating shaft, need to be fixed in bearing seat which is matched with it, usually install bearing to bearing chamber also use glue to stick to double fixed bearing, ensure the stability of rotating shaft in bearing when rotating, however, in prior art, glue is extremely easy to infiltrate into bearing in extrusion process, thereby lead to the condition of internal failure of bearing, on the other hand, in order to make a bearing seat can be applied to various different types of bearing, the height of bearing seat is not matched with the height of bearing, although certain convenience will be brought in replacement, but the height difference will affect the accuracy of rotating body rotation and accelerate the damage of motor to some extent, thereby reduce the service life of motor. SUMMARY

[0003] (1) technical problem to be solved

[0004] The utility model provides a structure of glue groove is applied in motor, it aims at solving the problem of glue infiltration in bearing and the height of bearing seat and bearing height mismatch in prior art.

[0005] (2) technical scheme

[0006] The utility model provides a structure of glue groove is applied in motor, including integrative inner housing and outer housing, be equipped with stator chamber in the inner housing, at least one end of stator chamber is equipped with bearing chamber of inside diameter D2, install bearing in bearing chamber, the one end of bearing chamber away from stator chamber is equipped with glue groove of inside diameter D3 and the annular step of inside diameter D1 connected with glue groove in proper order, and D1 < D2 < D3, glue groove is used to store redundant glue.

[0007] Further, the height of the bearing chamber is consistent with the height of the bearing, wherein the bearing chamber comprises an upper bearing chamber and a lower bearing chamber, and when the bearing is installed in the lower bearing chamber, an end surface one of the stator chamber close to the lower bearing chamber is located on the same horizontal plane as an end surface two of the bearing close to the stator chamber.

[0008] Further, the inner surface of the bearing chamber is a smooth surface, and the longitudinal length of the glue groove is less than 1 / 3 of the longitudinal length L2 of the bearing chamber.

[0009] Further, a guide surface is provided at one end of the bearing chamber close to the stator chamber.

[0010] Furthermore, the inner shell includes a base and an end cap, the base and the end cap being detachably connected, and the upper bearing chamber being disposed on the end cap.

[0011] Furthermore, the base is provided with a first step, and the end cap is provided with a second step. The first step and the second step are interlocked to connect the base and the end cap.

[0012] Furthermore, the end cap is provided with a ring-shaped array of heat dissipation holes.

[0013] Furthermore, the inner wall of the outer shell and the outer wall of the base form an annular main air duct.

[0014] Furthermore, the main air duct is provided with evenly spaced air guide plates, which divide the main air duct into several flow channels.

[0015] Furthermore, the air guide plate has an arc-shaped structure with a uniform orientation to optimize the flow channel space and reduce wind noise.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] A glue groove is provided at the end of the bearing housing to store excess glue, preventing glue from seeping into the bearing and causing internal failure, thereby improving the stability of the motor. At the same time, after the glue cures, it can further strengthen the interference fit between the bearing and the bearing housing, providing a double fixing effect. On the other hand, this utility model also sets the height of the bearing housing to be consistent with the height of the bearing, so that when the bearing is installed in the bearing housing, its upper end face is on the same horizontal plane as the lower end face of the stator housing. This makes the rotating body inside the bearing and the bearing more evenly stressed during rotation, which can not only reduce vibration and noise and improve the service life of the motor, but also make the rotation accuracy higher. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a partial sectional perspective view of the present invention.

[0020] Figure 3 This is a partial sectional view of the present invention.

[0021] Figure 4 This is a cross-sectional view of the overall structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the first step and the second step of this utility model.

[0023] Figure 6 This utility model Figure 4 Enlarged view of point A.

[0024] Figure 7 The utility model discloses a sectional view of the shell and the air deflector.

[0025] Reference signs: 1 - inner shell, 11 - base, 111 - step one, 12 - end cover, 121 - step two, 122 - heat dissipation hole, 2 - stator chamber, 21 - end face one, 3 - bearing chamber, 31 - upper bearing chamber, 32 - lower bearing chamber, 33 - glue groove, 34 - annular step, 35 - guide surface, 4 - bearing, 41 - end face two, 5 - shell, 6 - main air duct, 61 - air deflector, 62 - flow channel. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model.

[0027] As Figures 1-3 shown, the utility model provides a structure of glue groove application in motor, including integrative moulding's inner shell 1 and shell 5, be equipped with stator chamber 2 in the inner shell 1, the stator chamber 2 at least one end is equipped with the bearing chamber 3 of inner diameter D2, the bearing chamber 3 is installed with bearing 4, the bearing chamber 3 is away from the stator chamber 2 one end is equipped with the glue groove 33 of inner diameter D3 and the annular step 34 of inner diameter D1 connected with the glue groove 33 in proper order, and D1 < D2 < D3, the glue groove 33 is used to store the redundant glue, when the bearing 4 is completely installed in the bearing chamber 3, the end face of bearing 4 and the end face of annular step 34 sealed abut, the outer periphery of bearing 4 sealed resistance the glue groove 33, this sealed structure is favorable to seal the glue in glue groove 33 and give full play to the adhesive force of glue, and the waste of glue leakage is prevented, and before the state of bearing 4 complete installation, the glue groove 33 keeps open state all the time, and air resistance is not formed, and the glue can be naturally pushed and flow into the glue groove 33.

[0028] Specifically, as Figure 2As shown, before the bearing 4 is installed in the bearing chamber 3, a certain amount of glue is first applied on the outer peripheral wall of the bearing 4 and / or the inner wall of the bearing chamber 3, and then the bearing 4 is moved towards the bearing chamber 3, and in the process of moving and extruding, the bearing 4 and the bearing chamber 3 gradually form an interference fit, and at the same time, due to the smooth surface of the inner surface of the bearing chamber 3, the bearing 4 will squeeze the excess glue along the smooth surface to the bottom of the bearing chamber 3 during the moving and extruding process, and when the glue solidifies, it will further have a double fixing effect on the connection between the bearing 4 and the bearing chamber 3, and in order to prevent the excess glue from accumulating at the bottom of the bearing chamber 3 and seeping into the bearing 4, causing damage to the inside of the bearing 4, the utility model is provided with a glue groove 33 with an inner diameter of D3 at one end of the bearing chamber 3 away from the stator chamber 2, which is annularly arranged around the bearing chamber 3, so that when the bearing 4 is extruded into the bearing chamber 3, the excess glue is stored in the glue groove 33, and the glue used in the embodiment of the utility model is anaerobic glue, which can quickly solidify after being isolated from oxygen in the glue groove 33, so as to avoid the glue from continuing to seep into the bearing 4, and at the same time, the glue filled in the glue groove 33 can also strengthen the fixed connection between the glue groove 33 and the bearing 4, so as to further firmly fix the bearing 4 in the bearing chamber 3, and avoid deformation between the fixed surface of the bearing 4 and the bearing chamber 3 during high-speed rotation, which can cause the bearing 4 to loosen and thus cause the risk of abnormal operation of the rotating shaft.

[0029] Further, as shown in the drawings, Figure 4 The longitudinal length L1 of the glue groove 33 is less than 1 / 3 of the longitudinal length L2 of the bearing chamber 3, so as to prevent the groove body of the glue groove 33 from being too large, so that the excess glue cannot fill the glue groove 33, thereby causing a gap between the bearing 4 and the bearing chamber 3, which is prone to unstable connection during high-speed operation.

[0030] Further, the diameter D1 of the annular step 34 is less than the diameter D2 of the bearing chamber 3, and when the bearing 4 is installed in the bearing chamber 3, the annular step 34 abuts against the bearing 4, thereby forming a support or limiting position for the bearing 4 to play a positioning role. Similarly, the end face one 21 of the stator chamber 2 is also annularly arranged, and the end face one 21 is used to support and fix the stator installed in the stator chamber 2.

[0031] Preferably, as shown in the drawings, Figure 4As shown, the bearing chamber 3 includes an upper bearing chamber 31 and a lower bearing chamber 32, and when the bearing 4 is installed in the lower bearing chamber 32, the end face one 21 of the stator chamber 2 close to the lower bearing chamber 32 is located on the same horizontal plane as the end face two 41 of the bearing 4 close to the stator chamber 2. By designing the height of the bearing chamber 3 to be consistent with the height of the bearing 4, and after installation, the end face two 41 of the stator chamber 2 and the end face one 21 of the bearing 4 are located on the same horizontal plane, the high-speed rotating body in the bearing 4 and the rotating shaft can be more evenly stressed when rotating, thereby reducing the vibration and noise generated by the motor when rotating, reducing damage to the motor, and thus compared to the prior art, the motor has the effect of improving the service life of the motor, thereby reducing the frequency of replacing the motor, thereby saving production costs. On the other hand, the reduction of vibration and noise can further improve the accuracy of rotation of the bearing 4 and provide users with a better experience.

[0032] Further, as shown in the drawings, Figure 3 The bearing chamber 3 is provided with a guide cut surface 35 close to one end of the stator chamber 2, and the guide cut surface 35 has a guiding effect on the installation of the bearing 4. Since the bearing 4 and the bearing chamber 3 are in an interference fit state, the diameter of the bearing chamber 3 is smaller than the diameter of the bearing 4, so the setting of the guide cut surface 35 can make the bearing 4 more convenient and effective to install in the bearing chamber 3.

[0033] Further, as shown in the drawings, Figure 2 , Figure 5 , Figure 6 The inner shell 1 includes a base 11 and an end cover 12, the base 11 and the end cover 12 are detachably connected, the upper bearing chamber 31 is provided on the end cover 12, and the upper bearing chamber 31 and the lower bearing chamber 32 are coaxially arranged to fix and balance the rotating shaft. The detachable structure makes the installation and replacement of the stator and the bearing more convenient. In the embodiment of the utility model, the connection mode of the two is clamping, specifically, a step one 111 is arranged on the inner wall of the base 11, a step two 121 is arranged on the outer wall of the end cover 12, when the end cover 12 is connected with the base 11, the lower end of the end cover 12 abuts against the step one 111, the upper end of the base 11 abuts against the step two 121, and the step one 111 and the step two 121 are matched and embedded with each other to connect the base 11 and the end cover 12. In addition, the two bearing chambers 3 also play a role in sealing and dustproofing the inside of the motor, thereby reducing the risk of contamination of the bearing.

[0034] Further, as shown in the drawings, Figure 5As shown, the end cover 12 is provided with an annular array of heat dissipation holes 122, the heat dissipation holes 122 are communicated with the stator chamber 2, when the rotating shaft in the stator rotates at high speed, the heat generated thereby can flow out through the heat dissipation holes 122, at the same time, the external air and the air in the stator chamber 2 can flow to each other to reduce the heat and prevent overheating damage.

[0035] Further, as Figure 7 As shown, the inner wall of the shell 5 and the outer wall of the base 11 form an annular main air duct 6. Generally, the shell 5 is also provided with a fan blade near one end of the lower bearing chamber 32, and the fluid generated by the rotation of the fan blade can flow out from the main air duct 6. In order to make the fluid noise from the main air duct 6 smaller, the main air duct 6 is provided with uniformly spaced air guide plates 61, the air guide plates 61 divide the main air duct 6 into a plurality of flow channels 62, and the air guide plates 61 are uniformly arc-shaped structures to optimize the space of the flow channels 62, so that the air flow from the flow channels 62 changes from straight flow to vortex flow, which can make the fluid flow out in a four-around diffusion manner, reduce the wind noise, and improve the user's experience.

[0036] The utility model discloses an innovation point is in the end of bearing chamber is equipped with the glue groove, can be used to store the redundant glue, prevent the glue seepage into the bearing to cause the failure in the bearing interior, thereby improve the stability of motor, simultaneously, the glue solidification can further strengthen the interference connection of bearing and bearing chamber, and the effect of double fixing is played, on the other hand, the utility model discloses the height of bearing chamber is set to be identical with the height of bearing, thereby when bearing is installed in bearing chamber, its upper end surface and the lower end surface of stator chamber are located on the same horizontal plane, thereby the rotating body in the bearing and bearing are more uniform when rotating, not only can reduce vibration and noise, improve the service life of motor, but also can make the accuracy of rotation higher.

[0037] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that can be understood by those skilled in the art.

[0038] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A structure of a pot groove application in a motor, characterized by, The application relates to a motor comprising an inner shell (1) and an outer shell (5), wherein the inner shell (1) is provided with a stator chamber (2), the stator chamber (2) is provided with a bearing chamber (3) with an inner diameter D2 at least at one end, the bearing chamber (3) is provided with a bearing (4), the bearing chamber (3) is provided with a glue groove (33) with an inner diameter D3 and an annular step (34) with an inner diameter D1 connected with the glue groove (33) at an end away from the stator chamber (2), and D1 < D2 < D3, and the glue groove (33) is used for storing excess glue.

2. The structure of the glue groove applied in the electric machine according to claim 1, characterized in that, The height of the bearing chamber (3) is consistent with the height of the bearing (4), wherein the bearing chamber (3) comprises an upper bearing chamber (31) and a lower bearing chamber (32), and when the bearing (4) is installed in the lower bearing chamber (32), an end face one (21) of the stator chamber (2) close to the lower bearing chamber (32) is located on the same horizontal plane as an end face two (41) of the bearing (4) close to the stator chamber (2).

3. The structure of the glue groove applied in the motor according to claim 2, characterized in that, The inner surface of the bearing chamber (3) is smooth, and the longitudinal length L1 of the glue groove (33) is less than 1 / 3 of the longitudinal length L2 of the bearing chamber (3).

4. The structure of the glue groove applied in the electric machine according to claim 3, characterized in that, A guide cutting surface (35) is arranged in the bearing chamber (3) and close to the stator chamber (2).

5. The structure of the glue groove applied in the electric machine according to claim 2, characterized in that, The inner shell (1) comprises a base (11) and an end cover (12), the base (11) and the end cover (12) are detachably connected, and the upper bearing chamber (31) is arranged on the end cover (12).

6. The structure of the glue groove applied in the electric machine according to claim 5, characterized in that, A step one (111) is arranged on the base (11), a step two (121) is arranged on the end cover (12), and the step one (111) and the step two (121) are embedded with each other to connect the base (11) and the end cover (12).

7. The structure of the glue groove applied in the electric machine according to claim 6, characterized in that, An annular array of heat dissipation holes (122) is arranged on the end cover (12).

8. The structure of the glue groove applied in the electric machine according to claim 5, characterized in that, An annular main air duct (6) is formed between the inner wall of the outer shell (5) and the outer wall of the base (11).

9. The structure of the glue groove applied in the electric machine according to claim 8, characterized in that, Uniformly-spaced air guide plates (61) are arranged in the main air duct (6), and the air guide plates (61) divide the main air duct (6) into a plurality of flow channels (62).

10. The structure of the glue groove applied in the electric machine according to claim 9, characterized in that, The air guide plates (61) are in the form of arc-shaped structures with a unified orientation, so as to optimize the flow channel (62) space and reduce wind noise.

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