CN211830486U - Rectifier and generator with same - Google Patents

Abstract

The utility model relates to a rectifier and motor for generator. The rectifier includes: a negative rectifying plate; the connecting plate is positioned above the negative rectifying plate and is connected to the negative rectifying plate; and the positive rectifying plate is positioned above the connecting plate and is connected to the connecting plate. The connecting plate includes the main part and sets up on the main part and first connecting portion and second connecting portion adjacent to each other. The first connecting portion connects the negative current plate, the connecting plate, and the positive current plate to each other. The second connecting portion comprises a first connecting ring, the first connecting ring is connected with a stator lead of the generator, and the first connecting portion and the first connecting ring are adjacently arranged and have a gap with each other. The first connection ring includes a base portion integrally formed with the main body of the connection plate and spaced apart from the first connection portion by the gap, and a ring portion protruding from the base portion and configured as an integral member, the ring portion being connected with a stator lead of the generator.

Description

Rectifier and generator with same

Technical Field

The utility model relates to the field of automotive technology, especially, relate to a rectifier and have its generator.

Background

In automobiles, an alternator is the primary power source for the automobile and is driven by the engine. An alternator is generally composed of components such as a rectifier, a stator, a rotor, and an end cover. In an alternator, a rectifier functions to convert three-phase alternating current of a stator into direct current.

Generally, a rectifier for an automotive alternator is composed of a positive current plate, a negative current plate, and a connecting plate, etc., which is disposed between the positive current plate and the negative current plate, and lead wires of a stator are connected to the connecting plate by means such as welding. The stator vibrates during operation, and the connecting plate is driven to vibrate together, so that the welded connection between the stator lead and the connecting plate can be damaged.

Accordingly, it is desirable to provide a rectifier for an automotive alternator that is stable in electrical connection, highly operable, easy to install, and cost effective.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, the utility model provides a rectifier and have its generator.

The rectifier according to this use of the novel embodiment includes: a negative rectifying plate; the connecting plate is positioned above the negative rectifying plate and is connected to the negative rectifying plate; and the positive rectifying plate is positioned above the connecting plate and is connected to the connecting plate. The connecting plate includes the main part and sets up on the main part and first connecting portion and second connecting portion adjacent to each other. The first connecting portion connects the negative current plate, the connecting plate, and the positive current plate to each other. The second connecting portion comprises a first connecting ring, the first connecting ring is connected with a stator lead of the generator, and the first connecting portion and the first connecting ring are adjacently arranged and have a gap with each other. The first connection ring includes a base portion integrally formed with the main body of the connection plate and spaced apart from the first connection portion by the gap, and a ring portion protruding from the base portion and connected to the stator lead, the ring portion being configured as an integral member.

In the rectifier according to the embodiment of the utility model provides an in the rectifier, first connecting ring is connected with the stator pin of generator, the connecting plate is connected to positive cowling panel and negative cowling panel through first connecting portion, and have the clearance between first connecting portion and the first connecting ring, consequently, reduced the rigidity of being connected between stator lead and the connecting plate, reduce the vibration of stator to the transmission of other welding points, thereby reduce the working stress of the ring portion of first connecting ring and the welding department of stator lead, and improve the life of the welding department of negative diode and positive diode and connecting plate.

In some embodiments of the present invention, the negative rectifying plate is provided with a negative diode, the positive rectifying plate is provided with a positive diode, the second connecting portion further includes a second connecting ring and a third connecting ring, the second connecting ring is connected to the positive diode, and the third connecting ring is connected to the negative diode.

In some embodiments of the present invention, the first connection portion and the second connection portion are disposed at an edge of the main body of the connection plate, the first connection portion, the first connection ring, and the third connection ring are located outside an edge of the main body of the connection plate, and the second connection ring is located inside an edge of the main body of the connection plate.

In some embodiments of the present invention, the connecting plate is provided with a semi-annular member extending inward on the inner side of the edge of the main body, the semi-annular member and the inner side of the edge of the main body of the connecting plate together form a hollow portion, and the second connecting ring is located in the hollow portion.

In some embodiments of the present invention, the first connection ring, the second connection ring and the third connection ring are disposed adjacent to each other in sequence, and the first connection ring is located between the first connection portion and the second connection ring.

In some embodiments of the present invention, the second connection ring, the first connection ring and the third connection ring are disposed adjacent to each other in sequence, and the second connection ring is located between the first connection portion and the first connection ring.

In some embodiments of the present invention, the first connection ring is disposed opposite to the second connection ring and is disposed adjacent to the third connection ring, and the first connection ring and the second connection ring are located between the first connection portion and the third connection ring.

In some embodiments of the present invention, the first connection ring, the second connection ring, and the third connection ring are integrally formed.

In some embodiments of the present invention, the first connection ring, the second connection ring, and the third connection ring are formed of the same copper wire.

In some embodiments of the present invention, the first connection portion has a connection hole for receiving a bolt to connect the negative current plate, the connection plate, and the positive current plate to each other.

In some embodiments of the present invention, the positive and negative current plates have additional connecting holes, respectively, the additional connecting holes being aligned with the connecting holes of the first connecting portion, and adapted to receive bolts together with the connecting holes of the first connecting portion to connect the negative current plate, the connecting plate, and the positive current plate to each other.

In some embodiments of the present invention, the first connecting portion further has a pillar protruding downward from a lower surface thereof, the negative rectifying plate has a receiving hole corresponding to the pillar, and the pillar is adapted to be inserted into the receiving hole.

In some embodiments of the present invention, the positive current plate is configured as a heat dissipation plate for dissipating heat from the positive diode disposed thereon.

In some embodiments of the present invention, the connecting plate includes a plurality of connecting units sequentially disposed along an edge of the main body, each connecting unit including a first connecting portion and a second connecting portion.

According to this use novel embodiment's generator, include: a stator; the rotor is arranged in the stator and is suitable for rotating relative to the stator; and a rectifier according to any of the above embodiments of the present invention. The rectifier is disposed at one end of the stator, and the negative rectifier plate is configured as at least a portion of an end cap of the stator at the end thereof, the end cap being provided with a negative diode.

In the generator according to the embodiment of the utility model provides an in the stator pin connection of first connecting ring and generator, the connecting plate is connected to positive cowling panel and negative cowling panel through first connecting portion, and have the clearance between first connecting portion and the first connecting ring, consequently reduced the rigidity of being connected between stator lead and the connecting plate, reduce the vibration of stator to the transmission of other welding points, thereby reduce the working stress of the ring portion of first connecting ring and the welding department of stator lead, and improve the life of the welding department of negative diode and positive diode and connecting plate.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a perspective view of a generator according to an embodiment of the present invention.

Fig. 2 is a perspective view of a rectifier according to an embodiment of the present invention.

Fig. 3 is a partially enlarged view of the rectifier shown in fig. 2.

Fig. 4 is a further enlarged partial view of the commutator shown in fig. 3, showing the first connection portions and the first connection rings.

Fig. 5 is another perspective view of a rectifier according to an embodiment of the present invention, wherein the negative rectifier plate is not shown.

Fig. 6 is a partially enlarged view of the rectifier shown in fig. 5.

Fig. 7 is a perspective view of a connection plate according to an embodiment of the present invention.

Fig. 8 is a bottom view of the connection plate shown in fig. 7.

Fig. 9 is a top view of the connection plate shown in fig. 7.

Detailed Description

The following detailed description uses novel embodiments, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to explain the present utility model and are not to be construed as limiting the present utility model.

In the description of the present invention using the innovative features, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings which is based on the orientation or positional relationship shown in the drawings for ease of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the present description using the novel forms, "plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. To those of ordinary skill in the art, the specific meaning of the above terms in the present usage can be understood according to specific circumstances.

In this novel use, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly, but via another feature. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

An embodiment of the utility model discloses a rectifier 10 for automobile power generation machine. As shown in fig. 2 and 3, the rectifier 10 according to the embodiment of the present invention includes a positive current plate 130, a negative current plate 110, and a connection plate 120. The connection plate 120 is disposed between the positive current plate 130 and the negative current plate 110. Specifically, the connection plate 120 is located above the negative current plate 110 and connected to the negative current plate 110, and the positive current plate 130 is located above the connection plate 120 and connected to the connection plate 120.

Further, as shown in fig. 3 and 4, the connection plate 120 includes a main body 126, and a first connection portion 121 and a second connection portion 122 disposed on the main body 126 and adjacent to each other. The first connection part 121 connects the negative current plate 110, the connection plate 120, and the positive current plate 130 to each other. The second connection portion 122 includes a first connection ring 1221, the first connection ring 1221 is connected to the stator lead 210 of the generator, and the first connection portion 121 is disposed adjacent to the first connection ring 1221 with a gap 130 therebetween. Specifically, the stator lead 210 protrudes upward into the first connection ring 1221, and is welded to the first connection ring 1221.

Further, the first connection ring 1221 comprises a base 12211 and a ring 12212, the base 12211 being integrally formed with the body 126 of the connection plate 120 and being spaced apart from the first connection portion 121 by said gap 130, the ring 12212 protruding from the base 12211 and being connected to the stator lead 210 of the generator, for example by welding. The ring 12212 is constructed as an integral member. For example, the body 126 and base 12211 are formed as a unitary plastic piece from a plastic material, while the ring 12212 is formed as a unitary copper ring from copper wire.

In the rectifier for the automobile generator according to the embodiment of the present invention, the first connection ring 1221 is connected to the stator lead 210 of the generator, the connection plate 120 is connected to the positive current rectifying plate 130 and the negative current rectifying plate 110 through the first connection portion 121, and the first connection portion 121 and the first connection ring 1221 have the gap 130 therebetween, so that the connection stiffness between the stator lead 210 and the connection plate 120 is reduced, the transmission of the vibration of the stator 20 to other welding points is reduced, the working stress of the welding point of the ring portion 12212 of the first connection ring 1221 and the stator lead 210 is reduced, and the service life of the welding point of the negative diode 1101, the positive diode 1301 and the connection plate 120 is prolonged.

Further, since the base 12211 is spaced apart from the first connection portion 121 by the gap 130, when the stiffness coefficient K of the connection plate 120 at the first connection ring 1221 is calculated, the equivalent length is the sum of the length of the base 12211 and the length of the ring 12212, thereby increasing the equivalent length relative to the related art. It should be noted that, in the prior art, the base portion and the first connecting portion are not separated by a certain gap, but are integrated, so the equivalent length is only the length of the ring portion.

Thus, according to the calculation formula of the stiffness coefficient K: and increasing the stiffness coefficient K by increasing L under the condition that E and A are basically unchanged, wherein E is the elastic modulus of the rod, A is the section area of the rod, and L is the length of the rod. In other words, the stiffness coefficient K of the connection plate 120 at the first connection ring 1221 (i.e., the stiffness coefficient of the first connection ring 1221 equivalent to a cantilever beam) is smaller than the corresponding stiffness coefficient in the prior art. Therefore, when the stator lead 210 vibrates, the force applied to the welding point of the first connection ring 1221 (specifically, the ring 12212) and the stator lead 210 is reduced, so that the welding stability between the first connection ring 1221 and the stator lead 210 is ensured, and the stator lead 210 is prevented from being damaged.

In some embodiments of the present invention, as shown in fig. 1, the rectifier 10 is disposed at one end of the stator 10, and the negative rectifier plate 110 is configured as at least a portion of an end cap of the stator 1 at that end. In this way, the number of parts of the generator 1 can be reduced, the assembly process of the generator 1 can be simplified, and the manufacturing cost of the generator 1 can be reduced.

In addition, the positive current rectifying plate 130 is also configured as a heat radiating plate for radiating heat to the positive diode provided thereon, thereby further reducing the number of parts of the generator 1 and reducing the manufacturing cost of the generator 1.

In some embodiments of the present invention, as shown in fig. 1-3, the positive rectifier plate 130 is provided with a positive diode 1301 and the negative rectifier plate 110 is provided with a negative diode 1101. The positive diode 1301 can be directly press-fitted to the positive rectifying plate 130. For example, the positive rectifying plate 130 is provided with a mounting hole, and the positive diode 1301 is inserted into the mounting hole. Similarly, the negative diode 1101 may be directly press-fitted to the negative rectification plate 110. For example, the negative rectifying plate 110 is provided with a mounting hole, and the negative diode 1101 is inserted in the mounting hole.

Further, as shown in fig. 5 to 6, the second connection portion 122 further includes a second connection ring 1222 and a third connection ring 1223, the second connection ring 1222 is connected to the positive diode 1301, and the third connection ring 1223 is connected to the negative diode 1101. Specifically, the leads of the positive diode 1301 extend downward into the second connection ring 1222 and are soldered to the second connection ring 1222, while the leads of the negative diode 1101 extend upward into the third connection ring 1223 and are soldered to the third connection ring 1223.

In this way, the lead wire of the positive diode 1301, the lead wire of the negative diode 1101, and the stator lead wire 210 are connected to the same connection board 120, so that an operator can install the lead wires in place with the connection board 120 at a time during the installation process, thereby improving the installation efficiency.

In some embodiments of the present invention, as shown in fig. 5 and 6, the first connecting portion 121 further has a pillar 1212 protruding downward from a lower surface thereof, and the negative rectifying plate 110 has a receiving hole (not shown) corresponding to the pillar 1212, and the pillar 1212 is adapted to be inserted into the receiving hole, thereby further ensuring the firmness and stability of the connection between the negative rectifying plate 110 and the connecting plate 120. In addition, the upright 1212 plays a certain supporting role, and increases the overall rigidity of the connecting plate 120, so as to further reduce the transmission of vibration to other welding points, and further reduce the working stress of other welding points.

Specifically, since the stator leads 210 are connected to the connection plate 120 by welding, the stator 20 vibrates during operation, dragging the connection plate 120 to vibrate together, but the support effect of the posts 1212 may reduce the vibration transmission, thereby protecting the welded connection between each connection ring and the corresponding lead.

In some embodiments of the present invention, as shown in fig. 7 to 9, the first connection portion 121 and the second connection portion 122 are disposed at the edge of the main body 126 of the connection plate 120, the first connection portion 121, the first connection ring 1221, and the third connection ring 1223 are located outside the edge of the main body 126 of the connection plate 120, and the second connection ring 1222 is located inside the edge of the main body 126 of the connection plate 120. Specifically, the body 126 of the connection plate 120 may be an arc-shaped plate, the first connection portion 121, the first connection ring 1221, and the third connection ring 1223 being disposed outside a circumference of the arc-shaped plate, and the second connection ring 1222 being disposed inside the circumference of the arc-shaped plate. Thus, the first connection portion 121, the first connection ring 1221, the second connection ring 1222, and the third connection ring 1223 are disposed on the same arc-shaped plate (i.e., the main body 126 of the connection plate 120) at a proper position so that the connection plate 120 can be connected to the stator lead 210, the lead of the positive diode 1301, and the lead of the negative diode 1101 at the same time.

In addition, in a further embodiment of the present invention, the free end of the first connection ring 1221 is disposed at a position further outside than the free end of the third connection ring 1223 with respect to the edge of the main body 126 of the connection plate 120, that is, the radial distance between the free end of the first connection ring 1221 and the center of the arc-shaped connection plate 120 is greater than the radial distance between the free end of the third connection ring 1223 and the center of the arc-shaped connection plate 120, so as to further ensure the reasonable arrangement of the connection rings of the connection plate 120.

Accordingly, the position where the negative diode 1101 is disposed on the negative current plate 110 corresponds to the position of the third connection ring 1223, the position where the positive diode 1301 is disposed on the positive current plate 130 corresponds to the position of the second connection ring 1222, and the lead-out position of the stator lead 210 also corresponds to the position of the first connection ring 1221. Thereby, the stator lead 210, the positive diode 1301, and the negative diode 1101 can be simultaneously connected to the first connection ring 1221, the second connection ring 1222, and the third connection ring 1223, respectively.

In some embodiments of the present invention, as shown in fig. 7, the connection plate 120 has a hollow 123 inside the edge of the main body 126, and the second connection ring 1222 is located in the hollow 123. When the positive current plate 130 is assembled with the connection plate 120, the positive diode 1301 is also positioned within the hollow portion 123, thereby securing connection stability between the second connection ring 1222 and the positive diode 1301 while securing structural strength of the connection plate 120.

Specifically, the hollow 123 is surrounded by a semi-annular member protruding inward from the inside of the edge of the main body 126 of the connection plate 120, and the second connection ring 1222 also protrudes inward from the inside of the edge of the main body 126 of the connection plate 120, first extending downward and then extending inward, whereby the second connection ring 1222 has a vertical portion and a horizontal portion, and the horizontal portion is located below the hollow 123. When the positive current plate 130 is assembled with the connection plate 120, a portion of the positive diode 1301 is received in the hollow portion 140, and the horizontal portion of the secondary connection ring 1222 is positioned below the positive diode 130, and the lead of the positive diode 1301 extends downward, passes through, and is soldered to the horizontal portion of the secondary connection ring 1222. In this way, a stable connection between the positive diode 1301 and the second connection ring 1222 can be further ensured, thereby ensuring operational reliability of the rectifier 10.

As shown in fig. 8 and 9, the connection plate 120 includes a plurality of connection units each including the above-described first connection portion 121 and second connection portion 122. Specifically, the connection plate 110 has three connection units, i.e., a first connection unit and a third connection unit located at both ends of the arc-shaped connection plate 110, as a second connection unit located in the middle of the arc-shaped connection plate 110 (i.e., located between the first connection unit and the third connection unit).

The first connection unit includes a first connection part 121 and a second connection part 122. The second connection portion 120 includes two first connection rings 1221. Both first connecting rings 1221 are constructed as one piece. The two first connection rings 1201 are respectively located at both sides of the first connection portion 121, and are disposed adjacent to the first connection portion 121 with a certain gap therebetween. The second connecting portion 122 further includes a second connecting ring 1222 and a third connecting ring 1223. The second and third connection rings 1222 and 1223 are provided at a side of the first connection part 121 close to the second connection unit (i.e., a right side of the first connection part 121, as shown in fig. 8). The first connection ring 1221, the second connection ring 1222, and the third connection ring 1223 positioned at the right side of the first connection portion 121 are integrally formed and are sequentially disposed. For example, the first connection ring 1221, the second connection ring 1222, and the third connection ring 1223 located at the right side of the first connection portion 121 may be formed of the same copper wire.

The second connection unit includes a first connection part 121 and a second connection part 122. The second connection portion 122 includes two first connection rings 1221. Both first connecting rings 1221 are constructed as one piece. The two first connection rings 1221 are respectively located at two sides of the first connection portion 121, and are disposed adjacent to the first connection portion 121 and separated by a certain gap. The second connecting portion 122 further includes a second connecting ring 1222 and a third connecting ring 1223. The second and third connection rings 1222 and 1223 are provided at a side of the first connection part 121 close to the third connection unit (i.e., a right side of the first connection part 121, as shown in fig. 8). The first connection ring 1221, the second connection ring 1222, and the third connection ring 1223 located at the right side of the first connection portion 121 are formed in one body. For example, the first connection ring 1221, the second connection ring 1222, and the third connection ring 1223 located at the right side of the first connection portion 121 may be formed of the same copper wire. Further, the first connection ring 1221 located at the right side of the first connection portion 121 is disposed opposite to the second connection ring 1222, and is disposed adjacent to the third connection ring 1223.

In addition, the first connection ring 1221 of the second connection unit, which is located at a side of the first connection unit 121 close to the first connection unit (i.e., a left side of the first connection unit 121, as shown in fig. 8), is integrated with the third connection ring 1223 of the first connection unit. In other words, the first, second, and third connection rings 1221, 1222, and 1223 of the first connection unit located at the right side of the first connection portion 121 thereof are integrally formed with the first connection ring 1221 of the second connection unit located at the left side of the first connection portion 121 thereof, for example, by the same copper wire.

The third connection unit includes a first connection part 121 and a second connection part 122. The second connection portion 122 includes two first connection rings 1201. A first connection ring 1221 is positioned at a side of the first connection portion 121 close to the second connection unit (i.e., the left side of the first connection portion 121, as shown in fig. 8), and is disposed adjacent to and spaced apart from the first connection portion 110 by a gap. The second connecting portion 122 further includes a second connecting ring 1222 and a third connecting ring 1223. A second connection ring 1222 and a third connection ring 1203 are provided at a side of the first connection portion 121 close to the second connection unit. The second connection ring 1222 is positioned between the first connection portion 121 and one of the first connection rings 1221, the third connection ring 1223 is positioned at a side of the one of the first connection rings 1221 adjacent to the second connection unit, and the other of the first connection rings 1221 is positioned at a side of the third connection ring 1223 adjacent to the second connection unit, i.e., the third connection ring 1223 is positioned between the two first connection rings 1221. One first connection ring 1221, the second connection ring 1222, and the third connection ring 1223 of the third connection unit are integrally formed, and are integral with the first connection ring 1221 of the first connection unit located at a side of the first connection portion 121 thereof away from the second connection unit (i.e., a left side of the first connection portion 121, as shown in fig. 8), for example, formed of the same copper wire. Further, the other first connection ring 1221 of the third connection unit is integral with the third connection ring 1223 of the second connection unit. In other words, the first connection ring 1221, the second connection ring 1222, and the third connection ring 1223 of the second connection unit, which are located to the right of the first connection portion 121 thereof, are integrally formed with another first connection ring 1221 of the third connection unit, for example, by the same copper wire.

It should be noted that those skilled in the art will understand that copper wires should be arranged in the connection plate 120 to integrally form the above-mentioned respective associated first connection ring 1221, second connection ring 1222 and third connection ring 1223. With regard to the arrangement of the copper wires in the connecting plate 120, the present invention is not limited thereto, as long as the corresponding integral setting between the connecting rings is satisfied.

Further, as described above, the second connection rings 1222 in the first to third connection units are all located inside the edge of the main body 126 of the connection plate 120, and the first connection portion 121, the first connection ring 1221, and the third connection ring 1223 are all located outside the edge of the main body 126 of the connection plate 120.

In addition, the orientations "left" and "right" in the above description are with respect to FIG. 8. Specifically, in the clockwise direction, the orientation at the downstream is "right", and the orientation at the upstream is "left". Since fig. 8 and 9 are bottom and top views of the connecting plate 120, respectively, the orientations "left" and "right" in fig. 9 are opposite to those in fig. 8, i.e., the orientation "left" in fig. 8 should be the orientation "right" in fig. 9, and the orientation "right" in fig. 8 should be the orientation "left" in fig. 9, with the same definition.

Furthermore, in some embodiments of the present invention, the connection plate 120 further includes an adjuster connection ring 124, and the adjuster connection ring 124 is located at an end of the connection plate 120 where the first connection unit is located. The adjuster connecting ring 124 may be integrally formed with the first connecting ring 1221 of the first connecting unit on the left side of the first connecting portion 121 thereof, for example, formed of the same copper wire. The regulator connection ring 124 is for connection to a regulator (not shown) for regulating the field current of the rotor. It should be noted that the regulator is well known to those skilled in the art and therefore will not be described in detail.

Further, as shown in fig. 3, 5, 6, 8, and 9, the first connection part 121 has a connection hole 1211 for receiving the bolt 125 to connect the negative current plate 110, the connection plate 120, and the positive current plate 130 to each other. Accordingly, the positive and negative current plates 130 and 110 have additional connection holes (not shown), respectively, aligned with the connection holes 1211 of the first connection part 121 and adapted to receive the bolts 125 together with the connection holes 1211 of the first connection part 121 to connect the negative current plate 110, the connection plate 120, and the positive current plate 130 to each other. In this way, the connection manner between the negative current plate 110, the connection plate 120, and the positive current plate 130 can be simplified while ensuring the stability of the connection.

Embodiments of the present invention also provide a generator comprising a stator 10, a rotor (not shown) and a rectifier 20 according to the above embodiments of the present invention. The rotor is disposed within the stator 10 and rotates relative to the stator 10. The rectifier 20 is disposed at one end of the stator 10, and the negative rectification plate 110 is configured as at least a part of an end cap of the stator 10 at the end thereof, the end cap being provided with a negative diode 1101.

In the generator according to the embodiment of the present invention, the first connection ring 1221 is connected to the stator lead 210 of the generator, the connection plate 120 is connected to the positive current rectifying plate 130 and the negative current rectifying plate 110 through the first connection portion 121, and the first connection portion 121 and the first connection ring 1221 have the gap 130 therebetween, so that the connection stiffness between the stator lead 210 and the connection plate 120 is reduced, the transmission of the vibration of the stator to other welding points is reduced, the working stress of the welding point of the ring portion 12212 of the first connection ring 1221 and the stator lead 210 is reduced, and the service life of the welding point of the negative diode 1101, the positive diode 1301 and the connection plate 120 is prolonged.

Further, since the base 12211 is spaced apart from the first connection portion 121 by the gap 130, when the stiffness coefficient K of the connection plate 120 at the first connection ring 1221 is calculated, the equivalent length is the sum of the length of the base 12211 and the length of the ring 12212, thereby increasing the equivalent length relative to the related art. In the prior art, the base and the first connecting portion are not separated by a certain gap, but are integrated.

Thus, according to the calculation formula of the stiffness coefficient K: and increasing the stiffness coefficient K by increasing L under the condition that E and A are basically unchanged, wherein E is the elastic modulus of the rod, A is the section area of the rod, and L is the length of the rod. In other words, the stiffness coefficient K of the connection plate 120 at the first connection ring 1221 is smaller than the corresponding stiffness coefficient in the prior art. Therefore, when the stator lead 210 vibrates, the force applied to the welding point with the stator lead 210 is reduced, thereby securing the welding stability between the first connection ring 1221 and the stator lead 210 and preventing the stator lead 210 from being damaged.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

While there has been shown and described what are considered to be novel embodiments of the present invention, it will be understood that the embodiments described above are illustrative and are not to be construed as limiting the invention, which may be altered, modified, substituted and modified by those skilled in the art without departing from the scope of the invention.

Claims (15)

1. A rectifier for a generator, comprising:

a negative rectifying plate;

the connecting plate is positioned above the negative rectifying plate and connected to the negative rectifying plate; and

a positive rectifying plate located above and connected to the connecting plate,

the connecting plate includes a main body, and a first connecting portion and a second connecting portion provided on the main body and adjacent to each other, the first connecting portion connecting the negative current plate, the connecting plate, and the positive current plate to each other,

characterized in that the second connection part comprises a first connection ring connected with a stator lead of the generator, the first connection part and the first connection ring are adjacently arranged with a gap therebetween,

the first connection ring includes a base portion integrally formed with the main body of the connection plate and spaced apart from the first connection portion by the gap, and a ring portion protruding from the base portion and connected to the stator lead, the ring portion being configured as an integral member.

2. The rectifier of claim 1 wherein the negative rectifying plate is provided with a negative diode and the positive rectifying plate is provided with a positive diode,

the second connection portion further includes a second connection ring connected to the positive diode and a third connection ring connected to the negative diode.

3. The commutator of claim 2, wherein the first and second connection portions are disposed at an edge of the body of the connection plate, the first connection portion, the first connection ring, and the third connection ring are located outside the edge of the body of the connection plate, and the second connection ring is located inside the edge of the body of the connection plate.

4. The commutator of claim 3 wherein the body of the connector plate is provided with an inwardly extending semi-annular member inboard of its edge, the semi-annular member and the inboard edge of the body of the connector plate together enclosing a hollow in which the second connector ring is located.

5. The commutator according to claim 3, wherein the first connection ring, the second connection ring and the third connection ring are disposed adjacent to each other in this order, and the first connection ring is located between the first connection portion and the second connection ring.

6. The commutator according to claim 3, wherein the second connection ring, the first connection ring and the third connection ring are disposed adjacent to each other in this order, the second connection ring being located between the first connection portion and the first connection ring.

7. The commutator of claim 3, wherein the first connection ring is disposed opposite the second connection ring and adjacent the third connection ring, the first and second connection rings being between the first connection portion and the third connection ring.

8. The commutator of claim 3, wherein the first connecting ring, the second connecting ring and the third connecting ring are integrally formed.

9. The rectifier of claim 8 wherein the first connection ring, the second connection ring, and the third connection ring are formed from the same copper wire.

10. The rectifier of claim 1 wherein the first connection portion has a connection hole for receiving a bolt to connect the negative current plate, the connection plate, and the positive current plate to one another.

11. The commutator of claim 10, wherein the positive and negative commutator plates each have an additional connecting hole aligned with the connecting hole of the first connecting portion and adapted to receive the bolt together with the connecting hole of the first connecting portion to connect the negative commutator plate, the connecting plate and the positive commutator plate to each other.

12. The commutator of claim 1 wherein the first connecting portion further has a post projecting downwardly from a lower surface thereof, the negative commutator plate having a receiving hole corresponding to the post, the post being adapted to be inserted into the receiving hole.

13. The rectifier of claim 2 wherein the positive rectifying plate is configured as a heat sink plate for dissipating heat from the positive diode disposed thereon.

14. The commutator according to any one of claims 1 to 13, wherein the connecting plate includes a plurality of connecting units arranged in sequence along an edge of the main body, each of the connecting units including the first connecting portion and the second connecting portion.

15. An electrical generator comprising:

a stator;

a rotor disposed within the stator and adapted to rotate relative to the stator; and

the rectifier of any of claims 1-14 disposed at one end of the stator, the negative rectifying plate configured as at least a portion of an end cap of the stator at the end thereof, the end cap provided with a negative diode.

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