Automobile motor hardware end cover with insulation structure
By introducing a limiting ring, a movable ball, an indicator light, and a cooling system into the motor hardware end cover, the problem of non-guided shaft current in the variable frequency motor is solved, the bearing is fixed and cooled, the motor is protected, and the reliability of the motor is improved.
Patent Information
- Application Number
- CN202422776567.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-14
AI Technical Summary
Traditional motor end caps in variable frequency motors do not effectively guide shaft current, leading to frequent bearing erosion and motor damage.
An automotive motor hardware end cap with an insulated structure was designed, including a limiting ring, a movable ball, an indicator light, a power transmission board, and a cooling system. The connection between the limiting ring and the movable ball enables the guidance and fixation of shaft current, the connection between the indicator light and the power transmission board enables the current to be discharged, and the cooling system cools the bearing.
It effectively guides shaft current, protects bearings and motors, prevents electrolytic corrosion, and effectively cools bearings, thereby improving motor reliability and lifespan.
Smart Images
Figure CN223472114U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of automobile motor spare and accessory parts, concretely to a hardware end cover of automobile motor with insulation structure. BACKGROUND
[0002] The motor end cover is an important component of the motor, usually divided into front cover and rear cover, used for fixing and supporting the rotating shaft of the motor, connecting the rotor and the stator.
[0003] The traditional motor hardware end cover motor mainly relies on the air gap formed between the end cover and the winding to constitute insulation, and this kind of insulation method is relatively simple. In electric vehicles and hybrid electric vehicles, variable frequency motors are widely used. The probability of shaft current generated by variable frequency motor is larger, and bearing corrosion is prone to occur. It does not have effective guidance to the shaft current, causing damage to the motor.
[0004] Now, a hardware end cover of automobile motor with insulation structure is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a hardware end cover of automobile motor with insulation structure to solve the problem of not having effective guidance to the shaft current in the above background technology.
[0006] To achieve the above purpose, the utility model provides the following technical scheme: a hardware end cover of automobile motor with insulation structure, comprising a cover body, four groups of fixed holes are fixedly connected to the outer side of the cover body, a bearing compartment is fixedly connected to the left side of the inside of the cover body, and a shaft current insulation structure is arranged in the inside of the cover body.
[0007] The shaft current insulation structure comprises a limiting ring, the limiting ring is fixedly connected in the inside of the cover body, a baffle is installed on the left side of the limiting ring, a movable ball is movably connected in the inside of the limiting ring, a display lamp is installed on the left side of the baffle, and a power transmission plate is fixedly connected to the bottom end of the display lamp.
[0008] As a further technical scheme of the utility model, the outer diameter of the movable ball matches the inner diameter of the limiting ring, and the movable ball is closely attached to the right motor shaft.
[0009] As a further technical scheme of the utility model, a ground wire is arranged between the bottom end of the power transmission plate and the automobile, and the left side of the movable ball is closely attached to the baffle.
[0010] As a further technical scheme of the utility model, six groups of limiting holes are formed in the inside of the bearing compartment, six groups of limiting plates are fixedly connected to the outside of the bearing compartment, six groups of heads are movably connected to the outside of the limiting plates, and a screw rod is fixedly connected to the side of the head close to the bearing compartment.
[0011] As a further technical scheme of the utility model, six groups of the limiting holes are symmetrically arranged, and six groups of the head parts are symmetrically arranged.
[0012] As a further technical scheme of the utility model, the screw rod is movably connected inside the limiting hole, and the side of the screw rod close to the shaft is tightly combined with the bearing.
[0013] As a further technical scheme of the utility model, a liquid inlet and a first pipe cover are arranged on the left side of the top end of the cover body, a liquid outlet is movably connected to the outside of the liquid inlet, a second pipe cover is movably connected to the outside of the first pipe cover, and a cooling coil is mounted on the left side of the inside of the cover body.
[0014] As a further technical scheme of the utility model, the liquid inlet, the liquid outlet and the cooling coil are connected, and the right side of the cooling coil is tightly combined with the shell of the cover body.
[0015] Compared with the prior art, the utility model has the advantages that the automobile motor hardware end cover with the insulation structure not only realizes effective guidance of the shaft current, but also realizes fixation of the bearing and cooling of the bearing.
[0016] (1) through the setting up baffle, limit ring, display, power transmission and movable ball, because the probability of the shaft current of the frequency conversion motor is larger, through the fixed connection of the limit ring in the inside of the cover body, the movable ball is movably connected in the inside of the limit ring, the right side of the movable ball is connected with the motor shaft, the left side of the movable ball is connected with the baffle, through the installation of the display lamp on the left side of the baffle, the bottom end of the display lamp is installed power transmission plate, and the ground wire is connected between the power transmission plate and the automobile, so that the shaft current flows along the movable ball, display lamp and power transmission plate, and the protection of the bearing and motor is realized.
[0017] (2) through the setting up limiting hole, limit plate, head part and screw rod, when using, six groups of limiting holes are arranged in the inside of the bearing compartment, the screw rod is movably connected in the inside of the limiting hole, the head part is pinched, and the screw rod moves in the limiting hole, so that the fixation of the bearing is realized.
[0018] (3) through the setting up liquid inlet, first pipe cover, liquid outlet, second pipe cover and cooling coil, when using, the first pipe cover is opened, the cooling liquid is injected into the liquid inlet, the cooling liquid flows out from the liquid outlet through the cooling coil, and the left side of the cooling coil is tightly combined with the shell of the cover body, so that the cooling of the bearing is realized. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a front view cross-sectional structure schematic view of the utility model;
[0020] Figure 2 It is a side view structure schematic view of the utility model;
[0021] Figure 3 It is the bearing bin side view structure schematic diagram of the utility model;
[0022] Figure 4 It is the cooling coil side view section structure schematic diagram of the utility model;
[0023] Figure 5 It is the Figure 3 The local amplification structure schematic diagram of A place in the middle.
[0024] In the drawing: 1, cover body;2, fixed hole;3, bearing bin;4, baffle;5, limiting ring;6, display lamp;7, power transmission plate;8, movable ball;9, limiting hole;10, limiting plate;11, head;12, screw;13, liquid inlet;14, first pipe cover;15, liquid outlet;16, second pipe cover;17, cooling coil. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0026] Embodiment: please refer to Figures 1-5 A hardware end cover with insulation structure for automobile motor, including cover body 1, four groups of fixed holes 2 are fixedly connected on the outside of cover body 1, bearing bin 3 is fixedly connected on the left side in cover body 1, and shaft current insulation structure is arranged in cover body 1;
[0027] Please refer to Figures 1-5 The hardware end cover with insulation structure for automobile motor further includes shaft current insulation structure, and the shaft current insulation structure includes limiting ring 5, the limiting ring 5 is fixedly connected in the inside of cover body 1, baffle 4 is installed on the left side of limiting ring 5, movable ball 8 is movably connected in the inside of limiting ring 5, display lamp 6 is installed on the left side of baffle 4, and power transmission plate 7 is fixedly connected at the bottom of display lamp 6;
[0028] The outer diameter of movable ball 8 matches the inner diameter of limiting ring 5, movable ball 8 is closely attached to the right side of motor shaft, ground wire is arranged between the bottom of power transmission plate 7 and automobile, and the left side of movable ball 8 is closely attached to baffle 4;
[0029] Specifically, as Figure 1 , Figure 2 and Figure 3As shown, since the probability of the shaft current generated by the variable frequency motor is large, the limiting ring 5 is fixedly connected in the inside of the cover body 1, the movable ball 8 is movably connected in the inside of the limiting ring 5, the right side of the movable ball 8 is connected with the motor shaft, the left side of the movable ball 8 is connected with the baffle 4, the display lamp 6 is installed on the left side of the baffle 4, the bottom end of the display lamp 6 is installed with the power transmission plate 7, the ground wire is connected between the power transmission plate 7 and the automobile, so that the shaft current flows out along the movable ball 8, the display lamp 6 and the power transmission plate 7, and the protection of the bearing and the motor is realized.
[0030] The inside of the bearing bin 3 is provided with six groups of limiting holes 9, the outside of the bearing bin 3 is fixedly connected with six groups of limiting plates 10, the outside of the six groups of limiting plates 10 is movably connected with the head 11, the side close to the bearing bin 3 of the head 11 is fixedly connected with the screw rod 12, the six groups of limiting holes 9 are symmetrically arranged, the six groups of heads 11 are symmetrically arranged, the screw rod 12 is movably connected in the inside of the limiting hole 9, and the side close to the shaft of the screw rod 12 is closely attached to the bearing;
[0031] Specifically, as shown in Figure 1 , Figure 3 and Figure 5 , in use, the six groups of limiting holes 9 are arranged in the inside of the bearing bin 3, the screw rod 12 is movably connected in the inside of the limiting hole 9, the head 11 is pinched, the screw rod 12 is movable in the limiting hole 9, and the fixation of the bearing is realized.
[0032] The left side of the top end of the cover body 1 is provided with the liquid inlet 13 and the first pipe cover 14, the outside of the liquid inlet 13 is movably connected with the liquid outlet 15, the outside of the first pipe cover 14 is movably connected with the second pipe cover 16, the cooling coil 17 is installed on the left side in the inside of the cover body 1, the inside of the liquid inlet 13, the liquid outlet 15 and the cooling coil 17 is connected, and the right side of the cooling coil 17 is closely attached to the shell of the cover body 1;
[0033] Specifically, as shown in Figure 1 , Figure 2 and Figure 4 , in use, the first pipe cover 14 is opened, the cooling liquid is injected into the liquid inlet 13, the cooling liquid flows out from the liquid outlet 15 through the cooling coil 17, the left side of the cooling coil 17 is closely attached to the shell of the cover body 1, and the cooling of the bearing is realized.
[0034] Working principle: the utility model discloses in use, first, because the probability of the shaft current of variable frequency motor is larger, through the inside fixed connection of cover 1 limit ring 5, the inside swing joint of limit ring 5 has movable ball 8, the right side of movable ball 8 is connected with motor shaft, the left side of movable ball 8 is connected with baffle 4, through installing display lamp 6 on the left side of baffle 4, the bottom end of display lamp 6 installs power transmission plate 7, and the ground wire is connected between power transmission plate 7 and car, to realize the shaft current along movable ball 8, display lamp 6, power transmission plate 7, and further realize the protection of bearing and motor, second, through the inside of bearing bin 3 is set up six groups of limit hole 9, the inside swing joint of limit hole 9 has screw rod 12, by pinching head 11, screw rod 12 is swing in limit hole 9, and further realize the fixation of bearing, simultaneously, by opening first pipe cover 14, injects cooling liquid into liquid inlet 13, and cooling liquid flows out from liquid outlet 15 through cooling coil 17, and the left side of cooling coil 17 is closely attached with the shell of cover 1, to realize the cooling of bearing.
[0035] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the utility model is defined by the appended claims instead of the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.
Claims
1. An automotive motor hardware end cover with an insulating structure, comprising a cover body (1), characterized in that: The outer side of the cover (1) is fixedly connected with four groups of fixing holes (2), the left side of the inside of the cover (1) is fixedly connected with a bearing bin (3), and the inside of the cover (1) is provided with a shaft current insulation structure; The shaft current insulation structure comprises a limiting ring (5), the limiting ring (5) is fixedly connected in the inside of the cover (1), the left side of the limiting ring (5) is provided with a baffle (4), the inside of the limiting ring (5) is movably connected with a movable ball (8), the left side of the baffle (4) is provided with a display lamp (6), and the bottom end of the display lamp (6) is fixedly connected with a power transmission plate (7).
2. The hardware end cover of the automobile motor with the insulation structure according to claim 1, characterized in that: The outer diameter of the movable ball (8) matches the inner diameter of the limiting ring (5), and the movable ball (8) is closely attached to the right motor shaft.
3. The hardware end cover of the automobile motor with the insulation structure according to claim 1, characterized in that: The bottom end of the power transmission plate (7) is provided with a ground wire between the automobile, and the left side of the movable ball (8) is closely attached to the baffle (4).
4. The hardware end cover of the automobile motor with the insulation structure according to claim 1, characterized in that: The inside of the bearing bin (3) is provided with six groups of limiting holes (9), the outside of the bearing bin (3) is fixedly connected with six groups of limiting plates (10), the outside of the six groups of limiting plates (10) is movably connected with a head (11), and the side close to the bearing bin (3) of the head (11) is fixedly connected with a screw rod (12).
5. The automotive electrical machine hardware end cap with insulation structure according to claim 4, characterized in that: The six groups of limiting holes (9) are symmetrically arranged, and the six groups of heads (11) are symmetrically arranged.
6. The automotive electrical machine hardware end cap with insulation structure of claim 4, wherein: The screw rod (12) can be movably connected in the limiting hole (9), and the side close to the shaft of the screw rod (12) is closely attached to the bearing.
7. The hardware end cover of the automobile motor with the insulation structure according to claim 1, characterized in that: The left side of the top end of the cover (1) is provided with a liquid inlet (13) and a first pipe cover (14), the outside of the liquid inlet (13) is movably connected with a liquid outlet (15), the outside of the first pipe cover (14) is movably connected with a second pipe cover (16), and the left side of the inside of the cover (1) is provided with a cooling coil (17).
8. The automotive electrical machine hardware end cover with insulation structure according to claim 7, characterized in that: The inside of the liquid inlet (13), the liquid outlet (15) and the cooling coil (17) is connected, and the right side of the cooling coil (17) is closely attached to the shell of the cover (1).