Alternating-current generator structure

Abstract

The utility model relates to the technical field of alternating-current generator structures, in particular to an alternating-current generator structure which comprises a machine core, a front end cover and a rear end cover, the front end cover and the rear end cover are spliced in a front-back mode and arranged on the periphery of the machine core in a wrapping and sleeving mode, and a front protective cover close to the front side of the front end cover is installed and connected on the peripheral side face, close to the outer side, of the front end cover. A rear protective cover close to the rear side of the rear end cover is installed and connected to the peripheral side face of the rear end cover, and the front protective cover comprises a fan-shaped front plane protective plate perpendicular to the axial direction of the generator and an arc-shaped front curved surface protective plate integrally connected to the rear side edge of the front plane protective plate. The rear protective cover comprises a fan-ring-shaped rear plane protective plate perpendicular to the axial direction of the generator and an arc-shaped rear curved surface protective plate integrally connected to the front side edge of the rear plane protective plate, the bending direction of the front curved surface protective plate and the bending direction of the rear curved surface protective plate are consistent with the circumferential direction of the generator, heat dissipation is good, and use is flexible.

Description

TECHNICAL FIELD

[0001] The utility model relates to alternating current generator structure technical field, especially alternating current generator structure. BACKGROUND

[0002] The function of the automobile alternating current generator is mainly to provide electric energy for the automobile when the automobile works normally, with the increase of the automobile ownership, the demand of the automobile generator is also increasing, because the use environment of the automobile is relatively complex, therefore the automobile generator should also meet the use requirement under various environments, the existing automobile generator causes the generator to be stuck and cannot work normally or causes fire in the working process due to foreign matters.

[0003] The Chinese patent with the application number 202022033171.8 discloses a functional shroud mechanism of an alternating current generator and a motor vehicle alternating current generator with the same, which comprises a functional shroud mechanism installed on the alternating current generator of the motor vehicle, the functional shroud mechanism comprises: a shroud installed on the rear end cover of the alternating current generator, the shroud comprises a central hole and a protection end face, the protection end face is provided with a ventilation hole; a transmission shaft installed and supported on the central hole of the shroud, one end of the transmission shaft is connected with a rotor shaft of the alternating current generator, and the transmission shaft rotates synchronously with the rotor shaft; and a cleaning mechanism located outside the protection end face and connected with the transmission shaft, the cleaning mechanism is driven to rotate by the transmission shaft.

[0004] The structure of the existing protective cover is too closed, the ventilation and heat dissipation are not good enough, and the replacement cost is high after being damaged. INVENTION CONTENTS

[0005] The utility model aims at providing an alternating current generator structure which is good in heat dissipation and flexible to use.

[0006] The above-mentioned purpose of the utility model is realized by the following technical scheme: an alternating current generator structure, comprising a core, a front end cover and a rear end cover which are spliced and wrapped around the periphery of the core, a front protective cover connected to the front side of the front end cover is installed on the outer peripheral side of the outer side of the front end cover, a rear protective cover connected to the rear side of the rear end cover is installed on the outer peripheral side of the rear end cover, the front protective cover comprises a front plane protective plate which is fan-shaped and perpendicular to the generator axial direction and a front curved surface protective plate which is arc-shaped and integrally connected to the rear side edge of the front plane protective plate, the rear protective cover comprises a rear plane protective plate which is fan ring-shaped and perpendicular to the generator axial direction and a rear curved surface protective plate which is arc-shaped and integrally connected to the front side edge of the rear plane protective plate, and the bending directions of the front curved surface protective plate and the rear curved surface protective plate are consistent with the generator circumferential direction.

[0007] The integrated connection part of the front plane protection plate and the front curved surface protection plate is a round corner transition shape, and the integrated connection part of the rear plane protection plate and the rear curved surface protection plate is a round corner transition shape.

[0008] The radius of the front plane protection plate is 120-180 degrees, and the radius of the rear plane protection plate is 120-180 degrees.

[0009] The outer peripheral side surface of the front end cover is integrally connected with three front connecting blocks arranged at a circumferential interval of the generator, the front connecting blocks are provided with front connecting holes in the radial direction, the rear side edge of the front curved surface protection plate is integrally connected with three front connecting pieces arranged at a circumferential interval of the generator, the front connecting pieces are provided with front assembly holes corresponding to the front connecting holes and in the radial direction, and front locking bolts are locked between the front connecting holes and the front assembly holes.

[0010] The outer peripheral side surface of the rear end cover is integrally connected with three rear connecting blocks arranged at a circumferential interval of the generator, at least one of the rear connecting blocks is provided with a rear first connecting hole in the radial direction, at least one of the rear connecting blocks is provided with a rear second connecting hole in the axial direction, the rear side edge of the rear curved surface protection plate is integrally connected with three rear connecting pieces arranged at a circumferential interval of the generator, at least one of the rear connecting pieces is provided with a rear first assembly hole corresponding to the rear first connecting hole and in the radial direction, at least one of the rear connecting pieces is provided with a rear second assembly hole corresponding to the rear second connecting hole and in the axial direction, and rear locking bolts are locked between the rear first connecting hole and the rear first assembly hole and between the rear second connecting hole and the rear second assembly hole.

[0011] The three front connecting blocks and the three rear connecting blocks are arranged at a circumferential interval.

[0012] The radius of the front plane protection plate and the radius of the rear plane protection plate are the same and arranged at a circumferential interval, and the interval angle is less than 20 degrees.

[0013] An external fan is installed between the rear end cover and the rear plane protection plate, and the rear curved surface protection plate is located at the periphery of the external fan.

[0014] The outer peripheral side surface of the front end cover is further integrally connected with a front connecting sleeve extending in the axial direction, the outer peripheral side surface of the rear end cover is further integrally connected with a rear connecting sleeve extending in the axial direction, and a locking connecting screw is arranged between the front connecting sleeve and the rear connecting sleeve.

[0015] The rear end cover is integrally connected with connecting ears on the outer circumferential side, and the rear connecting block with the second rear connecting hole is integrally connected with one of the connecting ears.

[0016] The utility model discloses the beneficial effect has: adopt the semi-closed type protection structure, and the ventilation heat dissipation effect is better, and the use is more flexible, and the replacement maintenance cost is controllable, and the strength of whole structure also has the promotion.

[0017] Avoid contact with various wire harnesses and pipelines on the engine or the whole vehicle, prevent pipe and wire winding and winding into danger, and improve the reliability of the generator. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the front side view of the structure of the alternator in the embodiment;

[0019] Figure 2 is Figure 1 the middle view of the structure;

[0020] Figure 3 is Figure 1 the rear side view of the structure;

[0021] Figure 4 is Figure 1 the structure after removing the front and rear protective covers;

[0022] Figure 5 is Figure 1 the structure of the front and rear protective cover parts. DETAILED DESCRIPTION

[0023] The utility model will be further explained in detail in combination with the drawings.

[0024] The specific embodiment is only the explanation of the utility model, and it is not the limitation of the utility model, and the person skilled in the art can make the modification of no creative contribution according to the need after reading the present specification, but as long as in the right claim range of the utility model, it is protected by the patent law.

[0025] Embodiment, such as Figures 1-5As shown in the figure, an alternator structure comprises a core and a front end cover 1 and a rear end cover 2 which are spliced and wrapped around the periphery of the core, and the core is the rotor and stator assembly inside the alternator and the rotating shaft connected with the rotor, and the front end cover 1 and the rear end cover 2 are also the conventional necessary structures. The embodiment is characterized in that: the outer peripheral side of the front end cover 1 is provided with a front protective cover 3 connected in front of the front end cover 1, and the outer peripheral side of the rear end cover 2 is provided with a rear protective cover 4 connected behind the rear end cover 2, and the front and rear protective covers are provided, and specifically, the front protective cover 3 comprises a front plane protective plate 31 which is a fan shape and perpendicular to the axial direction of the alternator, and a front curved surface protective plate 32 which is a circular arc shape and integrally connected to the rear side of the front plane protective plate 31, and the rear protective cover 4 comprises a rear plane protective plate 41 which is a fan ring shape and perpendicular to the axial direction of the alternator, and a rear curved surface protective plate 42 which is a circular arc shape and integrally connected to the front side of the rear plane protective plate 41, and the front protective cover 3 and the rear protective cover 4 are both provided with this semi-closed structure at the positions which are easy to interfere with other structures or easy to enter sundries on the outer side and the front and rear sides, so that the space occupied is not very large, and the ventilation will not be affected, and the use is more flexible, and the cost is relatively low. Further, the bending direction of the front curved surface protective plate 32 and the rear curved surface protective plate 42 is consistent with the circumferential direction of the alternator, that is, the circumferential direction of the alternator is the bending direction of the curved surface plate, and the strength and protection are ideal choices.

[0026] As a preferred, the integral connection between the front plane protective plate 31 and the front curved surface protective plate 32 is a round corner transition shape, and the integral connection between the rear plane protective plate 41 and the rear curved surface protective plate 42 is a round corner transition shape, and the structure stability of the round corner transition is better, and the collision between the devices can be avoided.

[0027] As a preferred, the curvature of the front plane protective plate 31 is 120-180 degrees, and the curvature of the rear plane protective plate 41 is 120-180 degrees, and the bending curvature of the front and rear curved surface protective plates is preferably consistent with the plane protective plate.

[0028] As a preferred, the outer peripheral side of the front end cover 1 is integrally connected with three front connecting blocks 11 which are arranged at intervals in the circumferential direction of the alternator, and the front connecting block 11 can be a rectangular shape, and the front connecting block 11 is provided with a front connecting hole 110 which is along the radial direction of the motor, and the rear side of the front curved surface protective plate 32 is integrally connected with three front connecting pieces 320 which are arranged at intervals in the circumferential direction of the alternator, and the front connecting piece 320 is provided with a front assembly hole 321 which is corresponding to the front connecting hole 110 and is along the radial direction, and the front connecting hole 110 and the front assembly hole 321 are locked with a front locking bolt 300, so that the installation and fixation of the front protective cover can be completed. The materials of the front and rear protective covers can be consistent with the materials of the end covers, and both can adopt metal materials, such as steel.

[0029] Further, the outer circumferential side of the rear end cover 2 is integrally connected with three rear connecting blocks 21 arranged at intervals in the circumference direction of the generator, at least one of the rear connecting blocks 21 is provided with a rear first connecting hole 2101 along the radial direction, at least one of the rear connecting blocks 21 is provided with a rear second connecting hole 2102 along the axial direction, the rear side of the rear curved protective plate 42 is integrally connected with three rear connecting pieces 420 arranged at intervals in the circumference direction of the generator, at least one of the rear connecting pieces 420 is provided with a rear first assembly hole 4201 along the radial direction corresponding to the rear first connecting hole 2101, at least one of the rear connecting pieces 420 is provided with a rear second assembly hole 4202 along the axial direction corresponding to the rear second connecting hole 2102, the rear first connecting hole 2101 and the rear first assembly hole 4201, and the rear second connecting hole 2102 and the rear second assembly hole 4202 are locked with rear locking bolts 400. Here, the rear end cover 2 is arranged in different directions because the front and rear end covers are distinguished and the front and rear protective covers are distinguished, so that it is more eye-catching during rotation and assembly and cannot be mistaken, because the front and rear end covers are slightly different in appearance and size, so that the recognition degree can be improved.

[0030] Further, the three front connecting blocks 11 and the three rear connecting blocks 21 are arranged at intervals in the circumference direction, so that the three front connecting pieces 320 and the three rear connecting pieces 420 are also arranged at intervals in the circumference direction of the generator, if the three front connecting pieces 320 are respectively arranged at the two ends and the middle position of the front curved protective plate 32, and the three rear connecting pieces 420 are respectively arranged at the two ends and the middle position of the rear curved protective plate 42, then the front and rear protective covers are also arranged at intervals in the circumference direction, so that the curvature of the front flat protective plate 31 and the rear flat protective plate 41 is preferably the same and arranged at intervals in the circumference direction, further, the interval angle is preferably less than 20 degrees, and is preferably controlled at about 15 degrees.

[0031] As a preferred embodiment, the rear end cover 2 and the rear flat protective plate 41 are provided with an external fan 5, the external fan 5 is connected and sleeved on the generator rotating shaft, the rear curved protective plate 42 is located at the periphery of the external fan 5, that is, the rear protective cover covers the external fan 5 outward and rearward, which effectively protects the fan and effectively prevents foreign matters from entering and damaging the internal structure of the generator by using this semi-closed structure.

[0032] In order to improve the stability of the generator structure assembly, the outer circumferential side of the front end cover 1 is further integrally connected with a front connecting sleeve 61 extending in the axial direction, the outer circumferential side of the rear end cover 2 is further integrally connected with a rear connecting sleeve 62 extending in the axial direction, and the front connecting sleeve 61 and the rear connecting sleeve 62 are provided with a locking connecting screw 60 passing through and locking therebetween. The connection is further strengthened in the axial direction.

[0033] Further, the outer peripheral side of the rear end cover 2 is integrally connected with a connecting lug 7, a rear connecting block 21 with a rear second connecting hole 2102 is integrally connected with one of the connecting lugs 7 in the circumferential direction, mounting connecting holes are arranged on the connecting lug 7 for connecting with other support structures in the automobile interior to make the position of the generator more stable, and the integration of the rear connecting block 21 makes the structural strength of the position enhanced and the recognition degree higher.

[0034] Through the design of the protection structure, the cost control is more reasonable, the protection is more targeted, the use, replacement and maintenance are convenient, the influence on the performance of the generator is smaller, a good protection effect can be achieved, the strength and stability of the overall structure are improved, and the comprehensive performance is excellent.

[0035] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An alternator structure comprising a core and a front end cover (1) and a rear end cover (2) which are spliced front and rear and wrapped around the periphery of the core, characterized in that, The front end cover (1) is provided with a front protective cover (3) on the outer circumferential side of the outer side of the front end cover (1), and the rear end cover (2) is provided with a rear protective cover (4) on the outer circumferential side of the rear end cover (2), the front protective cover (3) comprises a front plane protective plate (31) which is fan-shaped and perpendicular to the generator axial direction, and a front curved surface protective plate (32) which is circular-arc-shaped and integrally connected to the rear side edge of the front plane protective plate (31), the rear protective cover (4) comprises a rear plane protective plate (41) which is fan ring-shaped and perpendicular to the generator axial direction, and a rear curved surface protective plate (42) which is circular-arc-shaped and integrally connected to the front side edge of the rear plane protective plate (41), and the bending direction of the front curved surface protective plate (32) and the rear curved surface protective plate (42) is consistent with the generator circumferential direction.

2. An alternator structure according to claim 1, wherein The integral connection part of the front plane protective plate (31) and the front curved surface protective plate (32) is a round corner transition shape, and the integral connection part of the rear plane protective plate (41) and the rear curved surface protective plate (42) is a round corner transition shape.

3. The alternator structure of claim 1 wherein, The arc of the front plane protective plate (31) is 120-180 degrees, and the arc of the rear plane protective plate (41) is 120-180 degrees.

4. An alternator structure according to claim 3, wherein The outer circumferential side of the front end cover (1) is integrally connected with three front connecting blocks (11) which are arranged at intervals in the generator circumferential direction, the front connecting block (11) is provided with a front connecting hole (110) in the radial direction, the rear side edge of the front curved surface protective plate (32) is integrally connected with three front connecting pieces (320) which are arranged at intervals in the generator circumferential direction, the front connecting piece (320) is provided with a front assembly hole (321) which corresponds to the front connecting hole (110) and is in the radial direction, and the front connecting hole (110) and the front assembly hole (321) are locked with a front locking bolt (300).

5. An alternator structure according to claim 4, wherein The outer circumferential side of the rear end cover (2) is integrally connected with three rear connecting blocks (21) which are arranged at intervals in the generator circumferential direction, at least one of the rear connecting blocks (21) is provided with a rear first connecting hole (2101) in the radial direction, at least one of the rear connecting blocks (21) is provided with a rear second connecting hole (2102) in the axial direction, the rear side edge of the rear curved surface protective plate (42) is integrally connected with three rear connecting pieces (420) which are arranged at intervals in the generator circumferential direction, at least one of the rear connecting pieces (420) is provided with a rear first assembly hole (4201) which corresponds to the rear first connecting hole (2101) and is in the radial direction, at least one of the rear connecting pieces (420) is provided with a rear second assembly hole (4202) which corresponds to the rear second connecting hole (2102) and is in the axial direction, and the rear first connecting hole (2101) and the rear first assembly hole (4201) and the rear second connecting hole (2102) and the rear second assembly hole (4202) are locked with a rear locking bolt (400).

6. An alternator structure according to claim 5, wherein The three front connecting blocks (11) and the three rear connecting blocks (21) are arranged at intervals in the circumferential direction.

7. An alternator structure according to claim 6, wherein The curvature of the front flat protection plate (31) and the rear flat protection plate (41) is the same and is arranged in a circumferential staggered manner, and the staggered angle is less than 20 degrees.

8. An alternator structure according to claim 5, wherein An external fan (5) is mounted between the rear end cover (2) and the rear flat protection plate (41), and the rear curved protection plate (42) is located at the periphery of the external fan (5).

9. The alternator structure of claim 5 wherein, An axially extending front connecting sleeve (61) is further integrally connected to the outer circumferential side of the front end cover (1), and an axially extending rear connecting sleeve (62) is further integrally connected to the outer circumferential side of the rear end cover (2), and the front connecting sleeve (61) and the rear connecting sleeve (62) are provided with a locking connection screw rod (60) penetrating therebetween.

10. The alternator structure of claim 5 wherein, An integral connecting lug (7) is integrally connected to the outer circumferential side of the rear end cover (2), and a rear connecting block (21) with a rear second connecting hole (2102) is circumferentially integrally connected to one of the connecting lugs (7).

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