JPH11136894A - Rotating machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotating machine which has high manufacturing workability and can conduct repairing work easily even when a power supply line is withdrawn carelessly. SOLUTION: When a case 12 is fitted in the connector part 8a of a terminal block 8, and a power supply line 14 is pressed into the line inserting hole 12a of the case 12 from the opening part of a motor frame, the power supply line 14 is inserted between a leaf spring 13 and a conductor plate 9, so that the power supply line 14 is connected to the conductor plate 9. It is thus unnecessary to conduct a troublesome work such as soldering the leaf spring 13 to the conductor plate 9, and the connecting position of the leaf spring 13 to the conductor plate 9 is kept stable, therefore, it becomes easy for the power supply line 14 to be pressed into the leaf spring 13, passing through the opening part of the motor frame. If excessive tensile force acts on the leaf spring 13 through the power supply line 14, the leaf spring 13 is pulled out together with the case 12, thus it is possible to conduct repairing work easily only by fitting the case 12 in the connector part 8a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating electric machine having a stator core on which a terminal block for external connection is mounted.

[0002]

In the above rotating electric machine, an SL terminal (screwless terminal) is soldered to a conductor plate, and then the conductor plate and the SL terminal are housed in a molding die of a terminal block and insert-molded. It is thought that. In this configuration, the stator core and the terminal block are housed in the motor frame, and the power wire is pushed into the SL terminal through the opening of the motor frame, and the power wire is connected to the stator coil through the SL terminal and the conductor plate. Will do.

However, in the case of the above configuration, it is necessary to perform a troublesome work of soldering the SL terminal to the conductor plate, and the soldering accuracy of the SL terminal is not stable, and the connection position of the SL terminal to the conductor plate varies. It will be easier. For this reason,
Since it becomes difficult to push the power cable into the SL terminal through the opening of the motor frame, there is generally room for improvement in terms of manufacturability.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object the advantage of good manufacturing workability and easy repair work even when a power supply wire is accidentally disconnected. An object of the present invention is to provide a rotating electric machine.

[0005]

According to a first aspect of the present invention, there is provided a rotating electric machine comprising: a stator core; a terminal block mounted on the stator core and having a box-shaped connector; and a conductor embedded in the terminal block and projected into the connector. A plate, a case fitted in the connector portion and having a wire insertion hole, and a leaf spring stored in the case and holding a power supply wire inserted into the case through the wire insertion hole in contact with the conductor plate. A coil wound around the stator core and supplied with power from the power supply wire through the conductor plate; an operating member housed in the case to release the holding of the power supply wire by the leaf spring; A motor frame that covers the terminal block, wherein an opening is formed in the motor frame corresponding to the wire insertion hole. It has.

According to the above means, when the power supply wire is inserted into the wire insertion hole of the case after the case is fitted to the connector portion of the terminal block, the power supply wire is held in contact with the conductor plate by the leaf spring. Then, the power supply wire and the conductor plate are electrically connected. Therefore, it is not necessary to perform a troublesome work of soldering the leaf spring to the conductor plate, and the connection position of the leaf spring to the conductor plate is stabilized, and it becomes easy to connect the power wire to the leaf spring through the opening of the motor frame. Therefore, manufacturing workability is improved.

The rotating electric machine according to the second aspect is characterized in that a capacitor and a thermal fuse are mounted on the surface of the terminal block. According to the above-described means, since the capacitor and the thermal fuse can be directly connected to the conductor plate, a lead wire becomes unnecessary, and the configuration is simplified.

According to a third aspect of the present invention, the rotary electric machine is characterized in that a substantially triangular cutout portion that contacts the outer peripheral surface of the power supply wire is formed in the leaf spring. According to the above means,
The holding power of the power supply wire by the leaf spring is improved, and the power supply wire becomes difficult to be pulled out of the case.

A rotating electric machine according to a fourth aspect of the present invention is characterized in that a mesh-shaped uneven portion that contacts the outer peripheral surface of the power supply wire is formed on the conductor plate. According to the above means, the holding power of the power supply wire by the conductor plate is improved, and the power supply wire is less likely to fall out of the case.

[0010] The rotating electric machine according to claim 5 is characterized in that the distal end surface of the operating member is recessed into the case with respect to the surface of the case. According to the above-described means, it is possible to prevent a foreign object or the like from hitting the distal end surface of the operation member and inadvertently operating the operation member.

A rotating electric machine according to a sixth aspect of the invention is characterized in that a bent portion having a substantially triangular cross section which is in contact with the outer peripheral surface of the power supply wire is formed on the conductor plate. According to the above means, since the contact area between the conductor plate and the power supply wire increases, the holding power of the power supply wire by the conductor plate improves, and it becomes difficult for the power supply wire to be pulled out of the case.

The rotating electric machine according to the present invention is characterized in that a capacitor is mounted on a surface of a terminal block, and the capacitor is molded with a thermosetting resin. According to the above-described means, a dedicated capacitor case for housing the capacitor is not required, so that the configuration is simplified. In addition, since the connection portion of the capacitor is protected from stress due to vibration or the like, reliability is improved.

The rotating electric machine according to the present invention is characterized in that the connection between the terminal of the capacitor and the conductor plate is molded with a thermosetting resin. According to the above-mentioned means, rust or the like is generated at the connection portion between the terminal of the capacitor and the conductor plate, and the connection portion is prevented from being disconnected, so that the reliability is improved.

According to a ninth aspect of the present invention, a rotating electric machine is characterized in that a capacitor is mounted on a surface of a terminal block and a conductor plate is directly connected to an electrode of the capacitor. According to the above-described means, rust or the like is generated at a connection portion between the capacitor and the conductor plate, and disconnection of the connection portion is prevented, so that reliability is improved.

According to a tenth aspect of the present invention, in the rotating electric machine, a protrusion protruding in a radial direction is provided on an outer peripheral portion of the terminal block on a side opposite to the connector portion, and the protrusion substantially contacts an inner surface of the motor frame. However, it has features. According to the above means, when the operating member is pushed in, the pushing force is transmitted from the terminal block to the motor frame through the protrusion, and is received by the motor frame, so that the terminal block can be displaced in the radial direction with respect to the stator core. Is prevented.

The rotating electric machine according to the eleventh aspect is characterized in that the protrusion has an inclined shape in which the width in the radial direction decreases from the base end to the front end. According to the above-described means, the corners of the projections are prevented from being hooked on the motor frame when the stator core is assembled into the motor frame after the terminal block is mounted on the stator core, so that manufacturing workability is improved.

According to a twelfth aspect of the present invention, the rotary electric machine is characterized in that the terminal block is provided with a projection projecting in the axial direction, and the projection substantially contacts the inner surface of the motor frame. According to the above means, when the operation member is pushed in,
Since the pushing force is transmitted from the terminal block to the motor frame through the projection and received by the motor frame, the terminal block is prevented from being displaced in the axial direction with respect to the stator core.

[0018]

FIG. 1 shows a first embodiment of the present invention.
7 will be described with reference to FIG. In this embodiment, the present invention is applied to a condenser induction motor that rotationally drives a fan of a duct ventilation fan. First, in FIG. 6, the motor frame 1 includes unit frames 1a and 1b.
, And a stator 2 is provided in the motor frame 1. Hereinafter, the stator 2 will be described in detail.

As shown in FIG. 4, the stator core 3
A tooth core 3a having a book tooth and a frame-shaped yoke core 3b press-fitted to the outer side of the tooth core 3a are formed. The tooth core 3a and the yoke core 3b are formed by stacking steel plates. Is formed. Further, a bobbin 4 made of synthetic resin is fitted to each tooth of the tooth core 3a, and a main coil 5 is wound around two predetermined bobbins 4, respectively, and the remaining two bobbins 4 are provided.
Are each wound with an auxiliary coil 6.

A pair of projections 4a projecting in the axial direction are integrally formed on the outside of each bobbin 4.
A pin terminal 7 extending in the axial direction is attached to a. Further, pin terminals 7 are attached to the two predetermined bobbins 4 so as to be located inside, and a terminal of each main coil 5 and a terminal of each auxiliary coil 6 are provided with predetermined pin terminals 7.
It is wound around.

The terminal block 8 shown in FIG. 3 is formed by injection molding a synthetic resin. The terminal block 8 is integrally formed with a box-shaped connector portion 8a having an open surface. Also, the terminal block 8
A plurality of conductive plates 9 (see FIG. 1B) are buried therein. Each of the conductor plates 9 is made of a copper plate, and one end of each of the conductor plates 9 projects to the bottom in the connector portion 8a as shown in FIG. Is
As shown in FIG. 7, a mesh-shaped uneven portion 9e is located on the upper surface.
Are formed.

As shown in FIG. 3, each of the conductor plates 9 has a terminal connection portion 9a exposed from both the front and back surfaces of the terminal block 8, and each terminal connection portion 9a has a terminal insertion hole 9b. . In addition, as shown in FIG.
A pair of claw portions 4b are integrally formed, and a pair of leg portions 8b are integrally formed with the connector portion 8a of the terminal block 8. After the terminal insertion hole 9b is inserted into the outer peripheral portion of each pin terminal 7, the terminal block 8 is formed. 8 into the stator core 3 side, each leg 8b
b, the terminal block 8 is mounted on the stator core 3.

As shown in FIG. 3, a predetermined conductor plate 9 has
A capacitor connecting portion 9c exposed from the surface of the terminal block 8 is formed. A terminal 10b of the capacitor 10 is soldered to each capacitor connecting portion 9c, and the main body 10a of the capacitor 10 is directly connected to the surface of the terminal block 8. It is placed.
Further, the predetermined conductor plate 9 is formed with a fuse connection portion 9d exposed from the surface of the terminal block 8, and the terminal 11a of the thermal fuse 11 is soldered to each fuse connection portion 9d.

A case 12 is fitted in the connector portion 8a of the terminal block 8, as shown in FIG. The case 12 is formed of a synthetic resin, and has a box shape having an open surface on the side opposite to the connector portion 8a. As shown in FIG. 6, an opening 1c is formed in the unit frame 1a at the front of the connector 8a (= the front of the case 12), and the case 12 is connected to the motor frame 1 through the opening 1c. Is exposed to the outside.

As shown in FIGS. 1A and 1B, inside the case 12, copper leaf springs 13 are provided. Each of these leaf springs 13 is, as shown in FIG.
It has a plate-shaped conductor plate connection portion 13a, a substantially S-shaped wire connection portion 13b, and a retaining portion 13c extending obliquely downward.
1 is in contact with the lower surface of the conductor plate 9 and is electrically connected to the conductor plate 9 as shown in FIG.

As shown in FIGS. 1 (b) and 1 (c), the case 12 has an electric wire insertion hole 12a formed in front of each leaf spring 13 so that an opening 1c of the motor frame 1 can be formed. Power supply wire 1 through each wire insertion hole 12a through
4, each leaf spring 1 is pressed as shown in FIG.
The power wire 14 is sandwiched between the third wire connection portion 13b and the uneven portion 9e of the conductor plate 9, and the power wire 14 is electrically connected to the conductor plate 9. At the same time, the power supply wire 14 is inserted between the retaining portion 13c of each leaf spring 13 and the conductor plate 9, and is locked in a retaining state by the end of the retaining portion 13c.

As shown in FIG. 5, a solder 7a is dropped on the terminal connection portion 9a of each conductor plate 9, and each pin terminal 7a
Are connected to the conductor plate 9 via the solder 7a. Therefore, the main coil 5 and the auxiliary coil 6 are connected to the power supply wire 14.
, A driving power is supplied through the conductor plate 9 and the pin terminals 7.

As shown in FIG. 1B, a release button 15 made of a synthetic resin is slidably accommodated in the case 12 in the directions indicated by arrows A and A. The release button 15 corresponds to an operation member, and the release button 15 is integrally formed with protrusions 15a, 15a, and each protrusion 15a is, as shown in FIG. It is inserted between the electric wire connection portion 13b and the retaining portion 13c. Therefore, the slide of the release button 15 is restrained as each protrusion 15a is locked by the electric wire connection portion 13b and the retaining portion 13c.

As shown in FIG. 1B, an operation portion 15b is formed integrally with the release button 15. An operation hole 12b is formed in the case 12 between the electric wire insertion holes 12a, and an operation portion 15b of the release button 15 is inserted into the operation hole 12b.
The tip surface of 5b is recessed rearward with respect to the tip of the operation hole 12b. Accordingly, when a tool (not shown) such as a flathead screwdriver is inserted into the operation hole 12b and the operation portion 15b is pushed backward, the release button 15 slides in the direction indicated by the arrow A.

At this time, each projection 1 of the release button 15
5a presses the retaining portion 13c of the leaf spring 13, and the retaining portion 13c is elastically deformed in the direction of arrow B as shown by a two-dot chain line in FIG. Then, each retaining portion 13 c is separated from the power supply wire 14, and the locking of each power supply wire 14 is released. Therefore, when each power supply wire 14 is pulled in the direction of arrow A, each power supply wire 14 is connected to the leaf spring 13. Part 13b and conductor plate 9
And through the wire insertion hole 12 a of the case 12 and the opening 1 c of the motor frame 1.

The rotor 16 is housed in the motor frame 1 as shown in FIG. This rotor 16
Rotor core 16a inserted into the inner periphery of stator core 3
And a rotating shaft 16b. Bearings 17 and 17 are mounted on the motor frame 1, and the rotating shaft 16b
b is supported by the double bearing 17.

According to the above embodiment, after the case 12 is fitted into the connector portion 8a of the terminal block 8, when the power supply wire 14 is pushed into the wire insertion hole 12a of the case 12, the power supply wire 1
4 is held in contact with the conductor plate 9 by the leaf spring 13, and the power supply wire 14 and the conductor plate 9 are electrically connected.
Therefore, it is not necessary to perform a troublesome work of soldering the leaf spring 13 to the conductor plate 9, and the connection position of the leaf spring 13 to the conductor plate 9 is stabilized, and the opening 1 of the motor frame 1 is formed.
Since the power cable 14 can be easily pushed into the leaf spring 13 through c, manufacturing workability is generally improved.

Moreover, the leaf spring 13 is passed through the power supply wire 14.
When an excessive tensile force acts on the connector 12, the leaf spring 13 is removed together with the case 12 from the inside of the connector portion 8a. Therefore, the restoration can be easily performed only by fitting the case 12 into the connector portion 8a. .

Further, the power cable 14 can be connected only by pushing the power cable 14 into the wire insertion hole 12a of the case 12. For this reason, a connector is not required since the connector is connected to the power supply wire 14 and the connector is fitted into the connector portion 8a of the terminal block 8, unlike the case where the power supply wire 14 is connected. Simplified.

A capacitor 10 and a thermal fuse 11 were mounted on the surface of the terminal block 8. For this reason, since the capacitor 10 and the thermal fuse 11 can be directly connected to the conductor plate 9, no lead wire is required, and the configuration is simplified. Further, since the mesh-like uneven portion 9e is formed on the conductor plate 9 and the power supply wire 14 is brought into contact with the uneven portion 9e, the holding force of the power supply wire 14 by the conductor plate 9 is improved, and the power supply wire 14 is And the conductor plate 9 hardly come off.

The operation unit 15b of the release button 15
Was recessed into the case 12 with respect to the surface of the case 12. For this reason, when the operation unit 15b is pushed by the tool, the inner surface of the operation hole 12b of the case 12 serves as a guide, so that the operation unit 15b is easily pushed. At the same time, it is possible to prevent foreign matter from hitting the distal end surface of the operation unit 15b and inadvertently pushing the release button 15.

Next, a second embodiment of the present invention will be described with reference to FIG. The same members as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. A triangular cutout 13 d is formed in the retaining portion 13 c of each leaf spring 13, and the inner surface of each cutout 13 d is in contact with the outer peripheral surface of the power supply wire 14.

According to the above embodiment, the notch 13d is formed in the leaf spring 13. Therefore, the power supply wire 14 and the leaf spring 1
Since the contact area with the plate 3 is increased, the holding force of the power supply wire 14 by the leaf spring 13 is improved, and the power supply wire 14 is difficult to be pulled out from between the leaf spring 13 and the conductor plate 9.

Next, a third embodiment of the present invention will be described with reference to FIG. The same members as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. Each conductor plate 9 has a connector 8
A bent portion 9f having a triangular cross section is formed in a. An uneven portion 9e is formed on the upper surface of the bent portion 9f.
And the electric wire connection portion 13b.

According to the above embodiment, the bent portion 9
f was formed. For this reason, the contact area between the conductor plate 9 and the power supply wire 14 increases, so that the holding power of the power supply wire 14 by the conductor plate 9 improves, and the power supply wire 14
It becomes difficult to pull out from between.

Next, a fourth embodiment of the present invention will be described with reference to FIG. The same members as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. On the surface of the terminal block 8, a wall 8c surrounding the main body 10a of the capacitor 10 is integrally formed. The wall portion 8c is filled with a thermosetting resin 18 such as an epoxy resin, and the main body 10a is molded with the thermosetting resin 18.

According to the above embodiment, the capacitor 10 was mounted on the terminal block 8, and the capacitor 10 was molded with the thermosetting resin 18. This eliminates the need for a dedicated capacitor case for housing the capacitor 10, thereby simplifying the configuration. Moreover, the connection portion of the capacitor 10 (= the main body portion 1)
The connection portion between the terminal 0a and the terminal 10b) is protected from stress due to vibration or the like, and is hardly disconnected, thereby improving reliability.

Next, a fifth embodiment of the present invention will be described with reference to FIG. The same members as those in the fourth embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. The terminal block 8 has a capacitor 10
A wall 8d surrounding the main body 10a and both terminals 10b is formed. The wall portion 8d is filled with a thermosetting resin 18, and the main body 10a, both terminals 10b, and the capacitor connecting portion 9c of the conductor plate 9 are molded with the thermosetting resin 18.

According to the above embodiment, the connection between the terminal 10 b of the capacitor 10 and the conductor plate 9 was molded with the thermosetting resin 18. For this reason, rust or the like is generated at the connection portion and disconnection of the connection portion is prevented, so that reliability is improved.

Next, a sixth embodiment of the present invention will be described with reference to FIG. The same members as those in the fifth embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. On the surface of the terminal block 8, a wall portion 8d
, A capacitor 19 is mounted. The conductor plate 9 is directly connected to both electrodes of the capacitor 19, and the connection between the capacitor 19 and the capacitor 19 and the conductor plate 9 is molded with a thermosetting resin 18 in the wall 8d.

According to the above embodiment, the conductor plate 9 was directly connected to the electrode of the capacitor 19. Therefore, the capacitor 1
Since rust or the like is generated at the connection between the conductor 9 and the conductor plate 9 and the connection is prevented from being disconnected, the reliability is improved. Moreover, since the capacitor 19 is molded with the thermosetting resin 18, the generation of rust and the like is reliably prevented, and the reliability is further improved.

Next, a seventh embodiment of the present invention will be described with reference to FIGS.
4 will be described. The same members as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
Only different members will be described. First, in FIG. 13, three protrusions 8 e protruding in the radial direction are formed integrally on the outer peripheral portion of the terminal block 8 at substantially equal pitches. It is arranged on the opposite side. As shown in FIG. 14, each of the protrusions 8e has an inclined shape in which the width in the radial direction decreases from the base end to the distal end, and the base end of each protrusion 8e is the unit frame 1a. Is in contact with the inner surface of the

As shown in FIG. 13, four projections 8f projecting in the axial direction are integrally formed on the outer peripheral portion of the terminal block 8. These four projections 8f are arranged at substantially equal pitches, a predetermined projection 8f is arranged on the connector 8a, and another projection 8f is arranged on the opposite side of the connector 8a, Each projection 8f is in contact with the inner surface of the unit frame 1a as shown in FIG.

According to the above embodiment, since the projection 8e is formed on the terminal block 8 on the side opposite to the connector section 8a, when the release button 15 is pressed, the pushing force is applied from the terminal block 8 to the motor through the projection 8e. It is transmitted to the frame 1 and received by the motor frame 1. For this reason, the terminal block 8 is displaced in the radial direction with respect to the stator core 3, and the connection portion of the main coil 5 and the connection portion of the auxiliary coil 6 are disconnected (= the soldering portion between the pin terminal 7 and the conductor plate 9). Is peeled off)
Is prevented.

The projection 8e is formed in an inclined shape. For this reason, after the terminal block 8 is mounted on the stator core 3, when the stator core 3 is assembled into the motor frame 1, the corners of the protrusions 8 e are prevented from being hooked on the motor frame 1, thereby improving the manufacturing workability. I do.

The terminal 8 has a projection 8 projecting in the axial direction.
f, the pushing force is applied from the terminal block 8 to the protrusion 8
Through the motor frame 1 and received by the motor frame 1. Therefore, the terminal block 8 is prevented from being displaced in the axial direction with respect to the stator core 3, and the connection of the main coil 5 and the connection of the auxiliary coil 6 are prevented from breaking.

Further, a plurality of projections 8e and 8
Since f is provided, the terminal block 8 is received by the motor frame 1 regardless of the direction of the pressing force acting on the terminal block 8 from the release button 15. For this reason, since the position shift of the terminal block 8 is reliably prevented, disconnection of the connection portion of the main coil 5 and the connection portion of the auxiliary coil 6 is also reliably prevented.

In the seventh embodiment, the terminal block 8
The protrusions 8e and 8f of the terminal block 8 are brought into contact with the inner surface of the motor frame 1, but the present invention is not limited to this. For example, the protrusions 8e and 8f of the terminal block 8 are so close that they do not contact the inner surface of the motor frame 1. You may let it.

In the first to seventh embodiments,
The bobbin 4 was fitted to the teeth of the stator core 3, and the main coil 5 and the auxiliary coil 6 were wound around the bobbin 4. However, the present invention is not limited to this. For example, the stator core 3 may be covered with insulating covers from both sides in the axial direction. Alternatively, the main coil 5 and the auxiliary coil 6 may be wound on the insulating cover. Alternatively, as the stator core 3 is molded, an insulating resin layer may be formed on the surface of the stator core 3 and the main coil 5 and the auxiliary coil 6 may be wound on the insulating resin layer.

In the first to seventh embodiments,
Although the present invention has been applied to the capacitor induction motor, the invention is not limited to this, and may be applied to, for example, a DC brushless motor.

[0056]

As is apparent from the above description, the rotating electric machine of the present invention has the following effects. According to the first aspect of the present invention, when the power supply wire is inserted into the wire insertion hole of the case, the power supply wire is held in a state of being in contact with the conductor plate by the leaf spring. Therefore, it is not necessary to perform a troublesome work of soldering the leaf spring to the conductor plate, and the connection position of the leaf spring to the conductor plate is stabilized, and it becomes easy to connect the power wire to the leaf spring through the opening of the motor frame. Therefore, manufacturing workability is improved.

According to the second aspect, a capacitor and a thermal fuse are mounted on the surface of the terminal block. For this reason, since the capacitor and the thermal fuse can be directly connected to the conductor plate, the lead wire becomes unnecessary and the configuration is simplified. According to the third aspect of the present invention, the substantially triangular cutout that contacts the outer peripheral surface of the power supply wire is formed in the leaf spring. For this reason, the holding power of the power supply wire by the leaf spring is improved,
It becomes difficult for the power cable to come out of the case.

According to the fourth aspect of the present invention, the conductive plate is provided with a mesh-like uneven portion which comes into contact with the outer peripheral surface of the power supply wire.
For this reason, the holding power of the power supply wire by the conductor plate is improved, so that the power supply wire is less likely to fall out of the case. According to the fifth aspect, since the distal end surface of the operating member is recessed into the case with respect to the surface of the case, foreign matter or the like hits the distal end surface of the operating member, and the operating member is carelessly operated. Is prevented. At the same time, since the tool can be guided when the operating member is pushed by the tool, the operation of the operating member is facilitated.

According to the sixth aspect of the present invention, the conductor plate is formed with a bent portion having a substantially triangular cross section which comes into contact with the outer peripheral surface of the power supply wire. For this reason, the holding power of the power supply wire by the conductor plate is improved, so that the power supply wire becomes difficult to pull out of the case. According to the seventh aspect of the present invention, the capacitor is placed on the surface of the terminal block and molded with a thermosetting resin. For this reason, since a capacitor case is not required, the configuration is simplified. In addition, since the connection portion of the capacitor is protected from stress due to vibration or the like, reliability is improved.

According to the invention, the connection between the terminal of the capacitor and the conductor plate is molded with a thermosetting resin. For this reason, rust or the like is generated at the connection portion of both, and disconnection of the connection portion is prevented, so that the reliability is improved. According to the ninth aspect, the capacitor is mounted on the surface of the terminal block, and the conductor plate is directly connected to the electrode of the capacitor. For this reason, rust or the like is generated at a connection portion between the capacitor and the conductor plate, and disconnection of the connection portion is prevented, so that reliability is improved.

According to the tenth aspect of the present invention, the projection is provided on the terminal block on the side opposite to the connector portion, and the projection is substantially brought into contact with the inner surface of the motor frame. Is prevented from being displaced in the radial direction with respect to the stator core. According to the means of claim 11,
The protrusion was formed in an inclined shape. For this reason, when the terminal block is assembled in the motor frame, the corners of the protrusions are prevented from being hooked on the motor frame, so that manufacturing workability is improved. According to the twelfth aspect of the present invention, the terminal block is provided with a projection projecting in the axial direction, and the projection is substantially brought into contact with the inner surface of the motor frame. Therefore, the terminal block is prevented from being displaced in the axial direction with respect to the stator core when the operation member is operated.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention (a is X1 -X1).
(B is a cross-sectional view along the line X2-X2, c is a view along the line X3)

FIG. 2 is a perspective view showing a leaf spring.

FIG. 3 is a top view showing a terminal block.

FIG. 4 is a top view showing a stator.

FIG. 5 is a front view showing a state where the terminal block is mounted on the stator.

FIG. 6 is a cross-sectional view showing the entire configuration.

FIG. 7 is a perspective view showing a main part of a conductive plate.

FIG. 8 is a view corresponding to FIG. 2, showing a second embodiment of the present invention.

FIG. 9 is a view showing a third embodiment of the present invention (a is a cross-sectional view taken along line XX, and b is a view corresponding to FIG. 7).

FIG. 10 is a view showing a fourth embodiment of the present invention (a cross-sectional view showing a terminal block).

FIG. 11 is a view corresponding to FIG. 10 showing a fifth embodiment of the present invention.

FIG. 12 is a view corresponding to FIG. 10 showing a sixth embodiment of the present invention.

FIG. 13 is a view corresponding to FIG. 3, showing a seventh embodiment of the present invention.

FIG. 14 is an enlarged sectional view showing a contact state between a protrusion of a terminal block and a motor frame.

[Explanation of symbols]

1 is a motor frame, 1c is an opening, 3 is a stator core, 5 is a main coil (coil), 6 is an auxiliary coil (coil), 8 is a terminal block, 8a is a connector, 8e is a protrusion, 8e
f is a protrusion, 9 is a conductor plate, 9e is an uneven portion, 9f is a bent portion,
10 is a capacitor, 10b is a terminal, 11 is a thermal fuse, 12 is a case, 12a is a wire insertion hole, 13 is a leaf spring, 13d is a cutout, 14 is a power supply wire, 15 is a release button (operation member), and 18 is heat. Curable resin, 19 indicates a capacitor.

Claims (12)

[Claims] A terminal board mounted on the stator core and having a box-shaped connector portion, a conductor plate embedded in the terminal block and protruding into the connector portion, fitted in the connector portion, A case having an electric wire insertion hole, a leaf spring housed in the case, and holding a power supply electric wire inserted into the case through the electric wire insertion hole in a state of being in contact with the conductor plate; A coil to which power is supplied from the power supply wire through the conductor plate; an operation member housed in the case to release the holding of the power supply wire by the leaf spring; and a motor frame covering the stator core and the terminal block. A rotating electric machine comprising: a motor frame having an opening corresponding to the electric wire insertion hole. 2. A capacitor and a thermal fuse are mounted on a surface of the terminal block.
The rotating electric machine as described. 3. The rotating electric machine according to claim 1, wherein the leaf spring is formed with a substantially triangular cutout that contacts an outer peripheral surface of the power supply wire. 4. The rotating electric machine according to claim 1, wherein the conductor plate is formed with a mesh-like uneven portion that contacts an outer peripheral surface of the power supply wire. 5. The rotating electric machine according to claim 1, wherein a distal end surface of the operating member is recessed into the case with respect to a surface of the case. 6. The rotating electric machine according to claim 1, wherein the conductor plate has a bent portion having a substantially triangular cross section that contacts an outer peripheral surface of the power supply wire. 7. The rotating electric machine according to claim 1, wherein a capacitor is mounted on a surface of the terminal block, and the capacitor is molded with a thermosetting resin. 8. The rotating electric machine according to claim 7, wherein a connection between the terminal of the capacitor and the conductor plate is molded with a thermosetting resin. 9. The rotating electric machine according to claim 1, wherein a capacitor is mounted on a surface of the terminal block, and the conductor plate is directly connected to an electrode of the capacitor. 10. An outer peripheral portion of the terminal block is provided with a protruding portion which is located on a side opposite to the connector portion and protrudes in a radial direction, and the protruding portion substantially contacts an inner surface of the motor frame. The rotating electric machine according to claim 1, wherein: 11. The rotating electric machine according to claim 10, wherein the protrusion has an inclined shape in which a width in a radial direction decreases from a base end to a tip end. 12. The rotating electric machine according to claim 1, wherein the terminal block has a protrusion protruding in an axial direction, and the protrusion substantially contacts an inner surface of the motor frame.