CN211606231U - Rotating electrical machine - Google Patents

Abstract

The utility model provides a rotating electrical machine can omit the use of terminal platform and save and set up the space. The rotating electric machine includes: a stator; a rotating motor case accommodating the stator; a first conductive member fixed to the stator and having a first connection terminal at one end; a second conductive member fixed to the rotating motor case and having a second connection terminal at one end; and a guide member provided on the stator and the rotating electric machine casing, the first connection terminal and the second connection terminal being disposed to face each other, the stator and the rotating electric machine casing being fixed to each other by relatively moving in an axial direction of the stator, the guide member guiding one of the first connection terminal and the second connection terminal to contact the other in a process in which the stator and the rotating electric machine casing are moved to approach each other by relatively moving the stator and the rotating electric machine casing.

Description

Rotating electrical machine

Technical Field

The utility model relates to a rotating electrical machine.

Background

In the related art, a rotating electrical machine generally includes a rotating electrical machine case, a stator (stator), a rotor (rotor), and the like. The stator is wound with a coil (coil), the rotor is rotatably provided with respect to the stator, and the stator and the rotor are housed in a rotating electric machine case. Further, the rotating electric machine may be configured as a three-phase motor having a U-phase, a V-phase, and a W-phase. That is, the coil wound around the stator includes a U-phase coil, a V-phase coil, and a W-phase coil. Further, three-phase line connectors such as bus bars (bar) corresponding to the U-phase, V-phase, and W-phase are connected to the coils.

Generally, a three-phase wire connector such as a bus bar located outside a rotating electric machine casing and a three-phase wire located in a stator are connected at an intermediate position using a terminal block and a fixing member such as a bolt, and are electrically connected. Therefore, the terminal block structure for electrically connecting the rotating electric machine built in the rotating electric machine case tends to make it difficult to obtain the positional accuracy of the stator-side terminal, resulting in poor mounting, or to increase the number of components, resulting in an increase in mounting cost. Further, conventionally, there has been a method of providing the terminal connecting portion or the terminal block insertion portion in the rotary electric machine case (see patent document 1), but the rotary electric machine case is increased in thickness.

[ Prior art documents ]

[ patent document ]

[ patent document 1] Japanese patent laid-open publication No. 2015-109742

SUMMERY OF THE UTILITY MODEL

The utility model provides a rotating electrical machine can omit the use of terminal platform and save and set up the space.

The utility model provides a rotating electrical machine, include: a stator; a rotating motor case accommodating the stator; a first conductive member fixed to the stator and having a first connection terminal at one end; a second conductive member fixed to the rotating motor case and having a second connection terminal at one end; and a guide member provided on the stator and the rotating electric machine casing, the first connection terminal and the second connection terminal being disposed to face each other, the stator and the rotating electric machine casing being fixed to each other by relatively moving in an axial direction of the stator, the guide member guiding one of the first connection terminal and the second connection terminal to contact the other in a process in which the stator and the rotating electric machine casing are moved to approach each other by relatively moving the stator and the rotating electric machine casing.

In an embodiment of the present invention, an elastic member is disposed at least one of the first connection terminal and the second connection terminal, and the elastic member contracts to allow one of the first connection terminal and the second connection terminal to apply a pressing force to the other one of the first connection terminal and the second connection terminal in a process in which the stator and the rotating electric machine casing relatively move and approach each other.

In an embodiment of the present invention, the first conductive member is provided with a transition portion protruding from the stator toward the axial direction, and the first connection terminal is fixed to an outer surface of the stator on the axial direction side in a manner of avoiding the transition portion.

In an embodiment of the present invention, the first connection terminal is provided at a position further radially outward than the transition portion.

In an embodiment of the present invention, the first connection terminal and the second connection terminal are fixed by a pedestal respectively, and the pedestal is an insulating member.

In an embodiment of the present invention, the guide member includes a guide portion provided around one of the first connection terminal and the second connection terminal and extending in the axial direction from the corresponding pedestal, and a following portion provided around the other of the first connection terminal and the second connection terminal and extending in the axial direction from the corresponding pedestal to contact with an inner side of the guide portion to follow the guide portion.

In an embodiment of the present invention, the guide portion has an inclined surface inclined toward an inner side, and one of the first connection terminal and the second connection terminal corresponding to the guide portion and a gap is provided between the guide portion to expose the pedestal corresponding to the guide portion, an end portion of the following portion contacts with the inclined surface of the guide portion to follow the guide portion, and is pressed on the pedestal corresponding to the guide portion.

In an embodiment of the present invention, the guide portion and the following portion are insulating members having elasticity, and the end portion of the following portion is pressed on the pedestal corresponding to the guide portion, and the stator is fixed to the rotating electrical machine case.

In an embodiment of the present invention, the first conductive part is a three-phase line, and the first connection terminal and the corresponding pedestal are disposed corresponding to a U-phase, a V-phase, and a W-phase of the three phases.

In an embodiment of the present invention, the stator is fixed to the rotating electric machine case by a fixing member extending in the axial direction.

Based on the above, in the rotating electrical machine of the present invention, the stator and the rotating electrical machine housing are relatively moved and fixed in the axial direction of the stator. In the process that the stator and the rotating motor casing relatively move and approach each other, the guide part guides one of the first connecting terminal and the second connecting terminal to contact the other, so that the first conductive part and the second conductive part, such as three-phase lines positioned on the stator, are electrically connected with a three-phase line connector, such as a bus bar, positioned on the outer side of the rotating motor casing. In this way, the terminal connecting portion formed by the first connecting terminal and the second connecting terminal is provided on the surface of the stator in the rotating electrical machine case, and the alignment degree is guided by the guide member, so that the rotating electrical machine can omit the provision of a terminal block for connecting a three-phase wire connector such as a bus bar and three-phase wires and a fixing member for fixing the terminal block at an intermediate position between the stator and the rotating electrical machine case. Therefore, the utility model discloses a rotating electrical machines can omit the use of terminal platform and save and set up the space.

In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is a partial schematic view of a rotating electrical machine according to an embodiment of the present invention;

fig. 2 is a schematic view of the rotating electric machine shown in fig. 1 on an outer side surface of a stator;

fig. 3 is an exploded schematic view of the rotary electric machine shown in fig. 1 at a terminal connecting portion;

fig. 4 is a schematic view of the rotary electric machine shown in fig. 3 assembled to the terminal connecting portion.

Description of reference numerals:

50: a fixing member;

60: an external connection;

100: a rotating electric machine;

110: a rotating motor housing;

112: an aperture;

114: an inner side surface;

116. 126: a pedestal;

120: a stator;

122: a coil;

122 a: a transition section;

124: an outer surface;

130: a first conductive member;

132: a first connection terminal;

140: a second conductive member;

142: a second connection terminal;

150: a guide member;

152: a guide section;

152 a: an inclined surface;

152 b: a gap;

154: a following section;

160: an elastic member;

a: a terminal connecting portion;

b: cutting a line;

l: an axial direction;

u: a U-phase coil;

v: a V-phase coil;

w: and a W-phase coil.

Detailed Description

Fig. 1 is a partial schematic view of a rotating electric machine according to an embodiment of the present invention, fig. 2 is a schematic view of the rotating electric machine shown in fig. 1 on an outer side surface of a stator, fig. 3 is an exploded schematic view of the rotating electric machine shown in fig. 1 at a terminal connection portion, and fig. 4 is a schematic view of the rotating electric machine shown in fig. 3 combined with the terminal connection portion. In the present embodiment, the rotary electric machine 100 includes a rotary electric machine case 110, a stator 120, a rotor (not shown), and a terminal connecting portion a and the like provided between the rotary electric machine case 110 and the stator 120. A specific structure of the rotary electric machine 100 in the present embodiment will be described below with reference to fig. 1 to 4. Fig. 1 to 4 only show portions of the rotating electrical machine 100 that need to be described, and other portions that are not described may refer to the prior art, which is not described herein. The present invention is not limited to other components of the rotating electrical machine 100, and can be adjusted according to the demand.

Referring to fig. 1, in the present embodiment, a rotating electrical machine casing 110 houses a stator 120 and a rotor (not shown). The stator 120 is wound with coils 122, and the stator 120 and the rotary electric machine case 110 are fixed by a fixing member 50 extending in the axial direction L, such as a bolt, relatively movable in the axial direction L of the stator 120, while a rotor (not shown) is rotatably provided with respect to the stator 120. Here, fig. 1 shows a stator yoke (stator yoke) of the stator 120 as a schematic, and other parts of the stator 120 are omitted.

In the present embodiment, since the coil 122 wound around the stator 120 includes the U-phase coil U, V phase coil V and the W-phase coil W, the rotating electrical machine 100 can be configured as a three-phase motor having a U-phase, a V-phase, and a W-phase. However, in other embodiments not shown, only one coil may be included. Coils 122 wound around stator 120 (i.e., U-phase coil U, V-phase coils V and W-phase coils W) extend to outer surface 124 on the axial direction L side of stator 120 (i.e., the outer surface of the stator yoke), and stator 120 is fixed such that outer surface 124 faces rotating electric machine case 110 (shown in fig. 1).

Further, as shown in fig. 1, an external connector 60 is disposed on an outer side of the rotating electric machine case 110 (i.e., a side opposite to the stator 120), and the external connector 60 can extend into the rotating electric machine case 110 through the hole 112 of the rotating electric machine case 110 to be electrically connected to the coil 122 extending to an outer surface 124 of the stator 120. The external connector 60 may be a three-phase wire connector extending from an inverter (inverter), such as a bus bar, or a connection portion of a Power Control Unit (PCU), but the present invention is not limited thereto, and may be adjusted according to the requirement. Here, a connection structure formed by the coil 122 of the stator 120 and the external connector 60 outside the rotary electric machine case 110 is referred to as a terminal connection portion a. Of these, U-phase coil U, V and W-phase coil W of coils 122 are each provided with a corresponding terminal connection portion (as described later), but fig. 1 shows, as an example, only terminal connection portion a formed between one of coils 122 and external connector 60.

Referring to fig. 3 and 4, in the present embodiment, the rotating electrical machine 100 includes a first conductive member 130, a second conductive member 140, and a guide member 150. First conductive member 130 is fixed to stator 120, and second conductive member 140 is fixed to rotating electric machine case 110. Further, the first conductive member 130 has a first connection terminal 132 at one end, the second conductive member 140 has a second connection terminal 142 at one end, and the first connection terminal 132 and the second connection terminal 142 are disposed to face each other. Therefore, when the stator 120 and the rotating electric machine case 110 are relatively moved in the axial direction L of the stator 120 and fixed by the fixing member 50 such as a bolt, the first connection terminal 132 and the second connection terminal 142 are in contact with each other, and the first conductive member 130 and the second conductive member 140 are electrically connected.

That is, in the present embodiment, first conductive member 130 is, for example, one of U-phase coil U, V phase coil V and W-phase coil W in coil 122, and second conductive member 140 is, for example, external connector 60. Fig. 3 and 4 are schematic side views of one of the coils 122 (e.g., the W-phase coil W) of fig. 2, which is cut along the cross-sectional line B, for example, but not limited thereto. As described above, the connection structure of the first conductive member 130 and the second conductive member 140 can be regarded as the terminal connection portion a, i.e., the connection structure of the coil 122 of the stator 120 and the external connector 60 outside the rotating electric machine case 110. Conventionally, the terminal connection portion a is generally connected by a terminal block and a fixing member for fixing the terminal block. However, in the present embodiment, the terminal block and the fixing member for fixing the terminal block are omitted, and the first connection terminal 132 and the second connection terminal 142 are electrically connected by contacting each other in the process of relatively moving and fixing the stator 120 and the rotating electric machine case 110. Therefore, in order to improve the alignment of the first connection terminal 132 and the second connection terminal 142, the guide member 150 is used for guiding.

In detail, in the present embodiment, the outer surface 124 of the stator 120 is provided with a pedestal 126, and the first conductive member 130, i.e., the coil 122, extends from the stator 120 to the outer surface 124 and is introduced into the pedestal 126, and is connected at one end portion thereof with the first connection terminal 132 via fusion (fusing). Therefore, the first connection terminal 132 is fixed by the pedestal 126, and the pedestal 126 is an insulating member. The above-mentioned components may be installed in the order of installing the base 126, introducing the first conductive member 130, i.e., the coil 122, into the base 126, and installing the first connection terminal 132, but the present invention is not limited thereto, and it may be adjusted as needed. As such, the first conductive member 130, i.e., the coil 122, and the first connection terminal 132 may be a metal material such as a copper-plated wire with a film, the first connection terminal 132 may be a metal material such as a copper-gold plating, and the stator yoke of the stator 120 may be a metal material such as an electromagnetic steel plate, but not limited thereto. In this case, the base 126 may be a resin material, and the insulating member as the base 126 can not only fix the first connection terminal 132 but also avoid conduction with a metal member such as the stator 120.

Similarly, an inner side surface 114 of the rotating electric machine case 110 facing the stator 120 is provided with a pedestal 116, and the second conductive member 140, i.e., the external connector 60, extends from the outside of the rotating electric machine case 110 into the rotating electric machine case 110 via the hole 112, and is connected at one end portion with a second connection terminal 142 via fusion. Therefore, the second connection terminal 142 is fixed by the pedestal 116, and the pedestal 116 is an insulating member. Preferably, a pedestal 116 extends from the inner side 114 of the rotating motor casing 110 into the bore 112. Thus, the second conductive member 140, i.e., the external connection member 60, may be a metal material such as a copper wire with a film, the second connection terminal 142 may be a metal material such as au plating, and the dynamo case 110 may be a metal case, but not limited thereto. In this case, the base 116 may be an insulating spacer (spacer), and an insulating member as the base 116 can not only fix the second connection terminal 142 but also avoid conduction with a metal member such as the rotary motor case 110.

In the present embodiment, the guide member 150 is provided between the stator 120 and the rotating electric machine case 110. The guide member 150 includes a guide portion 152 and a follower portion 154. The guide portion 152 is disposed around one of the first connection terminal 132 and the second connection terminal 142 (the first connection terminal 132 as shown in fig. 3 and 4), and extends in the axial direction L from the corresponding base 126. The following portion 154 is provided around the other of the first connection terminal 132 and the second connection terminal 142 (the second connection terminal 142 as shown in fig. 3 and 4), and extends from the corresponding base 116 in the axial direction L to contact the inside of the guide portion 152 to follow the guide portion 152. That is, the guide member 150 includes a guide portion 152 provided at the stator 120 and a follower portion 154 provided at the rotary motor case 110. The guide member 150 guides one of the first connection terminal 132 and the second connection terminal 142 to contact the other in the process that the stator 120 and the rotary motor case 110 relatively move to approach each other.

Further, in the present embodiment, the guiding portion 152 may be a ring-shaped structure (as shown in fig. 2) extending outward in the axial direction L from the periphery of the seat 126, and is shown as a pair of side walls in the side views of fig. 3 and 4, and has an inclined surface 152a inclined inward. In addition, a gap 152b is formed between one of the first connection terminal 132 and the second connection terminal 142 corresponding to the guiding portion 152 (the first connection terminal 132 is shown in fig. 3 and 4) and the guiding portion 152 to expose the pedestal 126 corresponding to the guiding portion 152. Further, the following portion 154 may be an annular structure extending outward in the axial direction L from the surface of the stage 116 and shown as a pair of sidewalls in the side views of fig. 3 and 4, and the width of the following portion 154 (i.e., the distance between the pair of sidewalls) is smaller than the width of the guiding portion 152 (i.e., the distance between the pair of sidewalls), so that the pair of sidewalls of the following portion 154 corresponds to the gap 152b between the pair of sidewalls of the guiding portion 152 and the first connection terminal 132.

In this way, when the stator 120 and the rotating electric machine case 110 are relatively moved in the axial direction L of the stator 120, the end of the follower 154 comes into contact with the inclined surface 152a on the inner side of the guide 152 to follow the guide 152, and further moves along the inclined surface 152a to enter the gap 152b, and then presses the base 126 corresponding to the guide 152, thereby shifting from the state shown in fig. 3 to the state shown in fig. 4. In the state shown in fig. 4, the following portion 154 is located in the gap 152b and pressed against the base 126, and the guide portion 152 is located outside the following portion 154. That is, in the process that the stator 120 and the rotating motor case 110 relatively move to approach each other, the guide member 150 guides one of the first connection terminal 132 and the second connection terminal 142 (e.g., the second connection terminal 142 located in the follower portion 154) to contact the other (e.g., the first connection terminal 132 located in the guide portion 152). Thus, the guide member 150 can correct the circumferential displacement of the stator 120 and the rotating electrical machine housing 110 during the relative movement, and improve the alignment between the first connection terminal 132 and the second connection terminal 142.

Further, in the present embodiment, the guide portion 152 and the follower portion 154 are insulating members having elasticity. Therefore, the guiding portion 152 and the following portion 154 can not only guide the second connection terminal 142 to contact the first connection terminal 132, but also avoid conduction with metal members such as the first connection terminal 132 and the second connection terminal 142. Further, in the case where the stator 120 and the rotating electric machine case 110 are fixed by the fixing member 50 (shown in fig. 1) such as a bolt as described above, the fixing axial force of the fixing member 50 can be transmitted to the stator 120 (such as a stator yoke) and the rotating electric machine case 110 to be closely coupled, and thus the following portion 154 can be closely abutted against the base 126 due to elasticity in a state where the end portion of the following portion 154 is pressed against the base 126 corresponding to the guide portion 152, thereby enhancing the electrical connection between the first connection terminal 132 and the second connection terminal 142. Further, when the end of the following portion 154 contacts the inclined surface 152a on the inner side of the guide portion 152, or when the following portion 154 is closely abutted against the base 126 by the fixing shaft force of the fixing member 50 between the stator 120 and the rotating motor case 110, the following portion 154 and the guide portion 152 may be slightly deformed by elasticity, and accordingly, the following portion 154 and the guide portion 152 are not easily damaged by the contact.

However, in other not-shown embodiments, the arrangement positions of the guide portion 152 and the follower portion 154 may be reversed, that is, the guide portion 152 is arranged around the second connection terminal 142 and extends in the axial direction L from the corresponding base 116, and the follower portion 154 is arranged around the first connection terminal 132 and extends in the axial direction L from the corresponding base 126. In this manner, the guide member 150 guides one of the first connection terminal 132 and the second connection terminal 142 (e.g., the first connection terminal 132 located in the follower portion 154) to contact the other (e.g., the second connection terminal 142 located in the guide portion 152) in the process that the stator 120 and the rotating motor housing 110 relatively move to approach each other. The following portion 154 may be in contact with the inside of the guide portion 152 to follow the guide portion 152. Further, in other embodiments, not shown, the specific structure, material, etc. of the guide member 150 may be adjusted according to the need as long as the guide member 150 can guide the first connection terminal 132 and the second connection terminal 142 to contact each other. The above description is only an example of the guide member 150, and the present invention is not limited thereto.

In the present embodiment, the elastic member 160 is disposed on at least one of the first connection terminal 132 and the second connection terminal 142 (the second connection terminal 142 shown in fig. 3 and 4). The elastic member 160 is, for example, a spring, but is not limited thereto. The elastic member 160 is located in the following portion 154 of the guide member 150, and surrounds the second conductive member 140 penetrating the hole 112, thereby connecting between the base 116 and the second connection terminal 142. In this way, in the process that the stator 120 and the rotating electrical machine casing 110 relatively move in the axial direction L and approach each other, the elastic member 160 contracts, so that one of the first connection terminal 132 and the second connection terminal 142 (shown as the second connection terminal 142 in fig. 3 and 4) applies a pressing force to the other (shown as the first connection terminal 132 in fig. 3 and 4).

That is, in the process in which the stator 120 and the rotary motor case 110 relatively move in the axial direction L to approach each other, the elastic member 160 is contracted by a contact force between the first connection terminal 132 and the second connection terminal 142 from an initial state (shown in fig. 3) (shown in fig. 4). Further, when the follower 154 penetrates the gap 152b between the guide 152 and the first connection terminal 132 to press the base 126 and the stator 120 and the rotating electric machine case 110 are fixed by the fixing member 50 (shown in fig. 1) such as a bolt as described above, the elastic member 160 maintains the contracted state. Thus, in the case where the rotating electric machine 100 is applied to a vehicle, in an environment where a vehicle body structure such as the rotating electric machine 100 vibrates along with the traveling of the vehicle, the elastic member 160 can give an elastic force to the connected second connection terminal 142 to cause the second connection terminal 142 to always abut against the first connection terminal 132, thereby ensuring the electrical connection between the first connection terminal 132 and the second connection terminal 142. Also, the fixing shaft force of the fixing member 50 can be transmitted to the stator 120 (e.g., a stator yoke) to be closely coupled to the rotating electric machine case 110, and a portion of the fixing shaft force can also be used as a contact force to press the elastic member 160 against the external connection member 60 connected to the second connection terminal 142.

However, in other embodiments not shown, the elastic member 160 may also be disposed between the first connection terminal 132 and the base 126, or may also be disposed between the first connection terminal 132 and the base 126, and between the second connection terminal 142 and the base 116. As long as at least one of the first connection terminal 132 and the second connection terminal 142 is provided with the elastic member 160 to ensure the electrical connection between the first connection terminal 132 and the second connection terminal 142. Furthermore, the rotating electrical machine 100 provided with the elastic member 160 is not limited to the application in the vehicle field, and the elastic member 160 can exert the above-mentioned effects (i.e., ensure the electrical connection between the terminals) when the rotating electrical machine is applied to an industrial machine that generates vibration during operation.

Referring to fig. 2 to 4, in the present embodiment, the first conductive component 130 is, for example, one of the U-phase coil U, V phase coil V and the W-phase coil W in the coil 122, i.e., a three-phase line. The coil 122 is wound around the stator 120 and extends to an outer surface 124 of the stator 120 to be introduced into the base 126, and a first connection terminal 132 is provided at an end portion above the base 126. As described above, the first conductive member 130, that is, the coil 122 wound around the stator 120, is provided with the transition portion 122a (a portion indicated by a broken line frame in fig. 2) protruding from the stator 120 in the axial direction L, and the first connection terminal 132 is fixed to the outer surface 124 of the stator 120 on the axial direction L side so as to avoid the transition portion 122 a. That is, the first connection terminal 132 is provided at a position radially outward or inward of the transition portion 122a, and the present embodiment exemplifies a position where the first connection terminal 132 is provided radially outward of the transition portion 122 a. In this way, since there is no need to provide a terminal block in the process of assembling the stator 120 and the rotary electric machine case 110, the rotary electric machine case 110 can be downsized in the radial direction. However, the present invention is not limited thereto, and can be adjusted according to the requirement.

In the present embodiment, as described above, the first conductive member 130 is, for example, one of the U-phase coil U, V phase coil V and the W-phase coil W in the coil 122, i.e., a three-phase line, and the first connection terminal 132, the corresponding base 126 and the guide portion 152 are provided corresponding to the U-phase, the V-phase and the W-phase of the three phases. That is, each of U-phase coil U, V phase coil V and W-phase coil W (corresponding to first conductive member 130) in coil 122 shown in fig. 2 may be provided with first connection terminal 132, base 126, and guide portion 152. A pedestal 126 is provided on the outer surface 124 of the stator 120 to correspond to each first connection terminal 132, and the corresponding first conductive member 130, i.e., the coil 122, is introduced into the pedestal 126 (shown in fig. 3 and 4). Although the drawings show that the insulating member as the base 126 is provided only at a position corresponding to the first connection terminal 132, in other embodiments not shown, the insulating member as the base 126 may be covered on the entire stator yoke to constitute an insulating end plate. The composition of the guide member 150 is not limited to the provision of the plurality of guide portions 152, and the present invention is not limited thereto, and may be adjusted as needed.

Further, in the present embodiment, as described above, the second conductive member 140 is, for example, a three-phase wire connector such as a bus bar as the external connector 60, and the second connection terminal 142 corresponding to each first connection terminal 132, the corresponding base 116, and the follower portion 154 are also provided in accordance with the U-phase, the V-phase, and the W-phase of the three phases. Although not shown in the drawings, the second conductive member 140 for connection with each of the U-phase coil U, V phase coil V and the W-phase coil W (equivalent to the first conductive member 130) in the coil 122 shown in fig. 2 may be provided with the second connection terminal 142, the base 116, and the follower 154. The base 116 is disposed on the inner side surface 114 of the rotary motor case 110 and extends into the corresponding hole 112 to correspond to each second connection terminal 142, and the corresponding second conductive member 140, i.e., the external connector 60, is inserted into the hole 112 and positioned in the base 116 (shown in fig. 3 and 4).

That is, when coil 122 wound around stator 120 is a three-phase wire including U-phase coil U, V phase coil V and W-phase coil W, and when external connector 60 penetrating from the outside to the inside of rotating electric machine case 110 is a three-phase wire connector such as a bus bar, coil 122 as first conductive member 130 and external connector 60 as second conductive member 140 can be provided with the aforementioned first connection terminal 132, second connection terminal 142, base 116, base 126, and guide portion 152 and follower portion 154 of guide member 150 in accordance with the U-phase, V-phase, and W-phase of the three phases to form terminal connection portion a. However, the above description regarding the arrangement corresponding to the U-phase, the V-phase, and the W-phase is only an example, and the arrangement may be adjusted according to the requirements of the structural composition or the connection characteristics of the coil 122 and the external connection member 60, and the present invention is not limited thereto.

In summary, in the rotating electrical machine of the present invention, the stator and the rotating electrical machine case are relatively moved and fixed in the axial direction of the stator. In the process that the stator and the rotating motor casing relatively move and approach each other, the guide part guides one of the first connecting terminal and the second connecting terminal to contact the other, so that the first conductive part and the second conductive part, such as three-phase lines positioned on the stator, are electrically connected with a three-phase line connector, such as a bus bar, positioned on the outer side of the rotating motor casing. In this way, the terminal connecting portion formed by the first connecting terminal and the second connecting terminal is provided on the surface of the stator in the rotating electrical machine case, and the alignment degree is guided by the guide member, so that the rotating electrical machine can omit the provision of a terminal block for connecting a three-phase wire connector such as a bus bar and three-phase wires and a fixing member for fixing the terminal block at an intermediate position between the stator and the rotating electrical machine case. Further, the stator and the rotating electric machine case are fixed by a fixing member such as a bolt, and at least one of the first connection terminal and the second connection terminal such as the second connection terminal is provided with an elastic member for pressing the second connection terminal connected by a three-phase wire connector such as a bus bar to the opposing first connection terminal. So, the fixed axial force of mounting can transmit to stator and rotating electrical machines casing and make its close coupling, strengthens the electric connection between first connecting terminal and the second connecting terminal in view of the above, and elastomeric element can make the second connecting terminal support all the time and lean on first connecting terminal under the vibration environment, guarantees first connecting terminal and second connecting terminal's electric connection by this. Therefore, the utility model discloses a rotating electrical machines can omit the use of terminal platform and save and set up the space.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the embodiments of the present invention, and the essence of the corresponding technical solutions is not disclosed.

Claims (10)

1. A rotating electrical machine, characterized by comprising:

a stator;

a rotating motor case accommodating the stator;

a first conductive member fixed to the stator and having a first connection terminal at one end;

a second conductive member fixed to the rotating motor case and having a second connection terminal at one end; and

a guide member provided between the stator and the rotating electric machine case,

the first connection terminal and the second connection terminal are disposed opposite to each other,

the stator and the rotating electric machine case are fixed to each other by moving in the axial direction of the stator,

the guide member guides one of the first connection terminal and the second connection terminal to contact the other in a process in which the stator and the rotating electric machine case relatively move to approach each other.

2. The rotating electric machine according to claim 1,

an elastic member is disposed at least one of the first connection terminal and the second connection terminal,

in a process in which the stator and the rotating electric machine case relatively move to approach each other, the elastic member contracts to cause one of the first connection terminal and the second connection terminal to apply a pressing force to the other.

3. The rotating electric machine according to claim 1,

the first conductive member is provided with a transition portion protruding from the stator in the axial direction,

the first connection terminal is fixed to an outer surface of the stator on the axial side so as to avoid the transition portion.

4. The rotating electric machine according to claim 3,

the first connection terminal is provided at a position radially outward of the transition portion.

5. The rotating electric machine according to any one of claims 1 to 4,

the first connection terminal and the second connection terminal are fixed by a pedestal, respectively, and the pedestal is an insulating member.

6. The rotating electric machine according to claim 5,

the guide part comprises a guide part and a following part,

the guide portion is provided around one of the first connection terminal and the second connection terminal and extends in the axial direction from the corresponding pedestal,

the following portion is provided around the other of the first connection terminal and the second connection terminal, and extends from the corresponding pedestal in the axial direction to contact with an inner side of the guide portion to follow the guide portion.

7. The rotating electric machine according to claim 6,

the guide portion has an inclined surface inclined inward, and a gap is provided between one of the first connection terminal and the second connection terminal corresponding to the guide portion and the guide portion to expose the pedestal corresponding to the guide portion,

an end of the following portion comes into contact with the inclined surface inside the guide portion to follow the guide portion and is pressed against the pedestal corresponding to the guide portion.

8. The rotating electric machine according to claim 7,

the leading part and the following part are insulating parts with elasticity,

the stator is fixed to the rotating motor case in a state where an end portion of the following portion is pressed against the pedestal corresponding to the guide portion.

9. The rotating electric machine according to claim 5,

the first conductive member is a three-phase line, and the first connection terminal and the corresponding base are provided corresponding to a U-phase, a V-phase, and a W-phase of the three phases.

10. The rotating electric machine according to claim 1,

the stator is fixed to the rotating motor case by a fixing member extending in the axial direction.

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