JPH10225048A - Small motor with speed reducer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to easily connect feed lines to a motor by providing an electric input section with a first connecting means to mount a connecting member for a connector and a second connecting means for housing and guiding and supporting a connection part of a feed line. SOLUTION: In an electric input section 70, a hollow projecting section 76 having a bottom which forms an inner space 86 is formed as an integral part of a gear case 24 and terminals 67 at the motor side are projecting from a bottom section 77. The electric input section 70 has a first connecting means 73 and a second connecting means 75. The first connecting means 73 is used for connecting the terminals 67 at the motor side and a feed line 16a in a connector 71 and is structured so as to be mounted with an adaptor 72. The second connecting means 75 is used to connect core wires 74 of a feed line 16b to the terminals 67 at the motor side and has a projecting section 76 to store a connection of the feed line 16b in its inner space 86 and two nearly U-shaped recessed sections 84 which are formed at an upper edge of an end face 80a of a side wall 80 and which guide and support the two core wires of the feed line 16d. Because of this structure, the feed lines can be easily connected to the electric input section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small motor with a speed reducer, and more particularly, to a motor with a speed reducer used for electric equipment for automobiles such as a power window, an electric sunroof and a wiper of an automobile. The present invention relates to a configuration of an electric input unit of a small motor.

[0002]

2. Description of the Related Art Small motors with reduction gears (hereinafter referred to as motors) have been widely used in the above-mentioned electrical equipment and the like, and standardization and common use of motors and simplification of work for connecting a power supply line to the motors. There is a demand for simplification of manufacturing processes and inventory management.

[0003] Japanese Utility Model Application Laid-Open No. 61-114553, JP-B-3-34554, JP-A-6-38449,
JP-A-6-269145 and JP-B-6-4995
No. 6 discloses a motor. In the motor, a motor case of the motor unit is attached to a gear case of the speed reducer unit to rotate a motor shaft of the motor unit, and outputs the output via the speed reducer unit to drive an electric device or the like.

[0004] A power supply line through which a drive current supplied to the motor flows is connected to an electric input portion of the motor. However,
The shape and structure of the connection part of the power supply line are not standardized and are various. That is, power supply lines of different connection parts are used depending on the maker or vehicle type of the automobile, and the reality is that they are not unified. The power supply line is classified into, for example, a so-called connector connection type and a harness type, which will be described later, according to the configuration of the connection portion. For this reason, it is necessary to configure the electric input portion of the motor so as to be compatible with the configuration of the connection portion of the feeder line.

FIG. 14 is a front view showing a state in which a harness type power supply line is connected to a conventional small motor with a speed reducer, and a part thereof is shown in cross section. In the illustrated small motor (motor) 1 with a speed reducer, a motor case 3 of a motor unit 2 is attached to a gear case 5 of a speed reducer unit 4,
The output of the motor shaft 6 of the motor unit 2 is output via the reduction gear unit 4.

A power supply line 7 of a harness type for flowing a current supplied to the motor 1 is electrically connected to a motor-side terminal 8. The connection portion 9 of the power supply line 7 of this type has a core wire 9a of the power supply line 7 fixed to the motor-side terminal 8 by soldering or caulking. The power supply line 7 is a grommet-shaped seal portion 3 provided on the motor case 3.
a into the gear case 5 and into the motor side terminal 8
It is connected to the.

Therefore, when connecting the power supply line 7, it is necessary to connect the power supply line 7 to the motor-side terminal 8 through the seal portion 3a before joining the motor case 3 and the gear case 5. There is. As a result, in the assembled motor 1, the power supply line 7 becomes one of the motor components.

A power supply line of the harness type has a configuration in which the core wire 9a of the connection portion is connected to the motor side terminal 8 inside the motor as described above. In addition to this, the power supply line is provided outside the motor case or the gear case. There is also a configuration in which a power input line is provided to connect a power supply line to a motor-side terminal of an electrical input unit before or after completion of motor assembly. Further, there is a so-called connector connection type power supply line in which a connection portion of the power supply line is connected to a motor-side terminal by a connector.

[0009]

As described above, while there are various types of power supply lines, the configuration of the electric input portion of the conventional motor 1 shown in FIG. No power supply line other than 7 could be connected. Therefore, even if the motor alone (i.e., the motor unit 2 and the speed reducer unit 4) other than the power supply line 7 is common, if the shape and length of the power supply line 7 are different, it is necessary to correspond to this shape and the like. In addition, it is necessary to make a finished product in a state in which a desired power supply line is connected to the motor 1 and to manage the completed product. As a result, the completed motor 1 will be diversified, and the motor cannot be standardized and shared. Therefore, the manufacturing process has become complicated, and inventory management of different types of components such as the power supply line 7, other motor components, and finished motor products has also been complicated.

Further, due to the configuration of the electric input section, a connector connection type power supply line cannot be connected to the motor 1. Furthermore, since the operation of passing the power supply line 7 through the seal portion 3a is complicated, it takes time and effort in the manufacturing process, and further, there is a possibility that a problem may occur in the reliability of the waterproofness of the seal portion 3a. In particular, when the motor 1 is used for a power window, this waterproof property is an important requirement.

[0011] As another conventional electric input portion of the motor, when the harness type power supply line is connected, an electric input portion is provided outside the gear case, and the power supply line is connected after the motor assembly is completed. Proposed. In the case of this motor, it is possible to manage the inventory of the motor alone without connecting the power supply line, and it is possible to standardize and standardize the motor to some extent. However, since the connector connection type power supply line cannot be connected to the electric input unit of the motor, the types of connectable power supply lines are limited to the harness type.

As another conventional electric input portion of a motor, there has been proposed a motor in which a motor-side connector is formed integrally with a motor case. In this case, after the motor is completed, if the connector of the connector connection type power supply line is attached to the motor side connector, the power supply line is electrically connected to the motor. However, as described above, since the shape and structure of the connector on the power supply line side differ depending on the automobile manufacturer or vehicle type, the motor side connector needs to be configured exclusively for a predetermined power supply line. There is no flexibility in connecting the connectors.

Therefore, it is necessary to manufacture many kinds of motors each having an electric input portion corresponding to the kind of the power supply line side connector, so that the motors cannot be standardized and shared, the manufacturing process becomes complicated, and Also, inventory management of finished motor products has become complicated. Further, since the motor-side connector is integrated with the motor case, it is necessary to consider not only the seal between the motor case and the gear case but also the seal between the motor-side connector and the motor case and the gear case. Therefore, the sealing structure becomes complicated, and the reliability of waterproofness may be reduced.

As described above, in the configuration of the electric input portion of the conventional motor, the motor is diversified by the configuration of the connection portion of the power supply line, and the motor itself cannot be standardized and shared. Was. As a result, in the motor manufacturing process and inventory management, motor parts and finished motor products may become excessive or shortage. Also, it has been difficult to increase the waterproof reliability of the motor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and the power supply line connected to the motor-side terminal can be connected by a connector or connected by fixing a core wire. It is an object of the present invention to provide a small motor with a speed reducer having an electric input unit that can easily connect the motor to the motor.

[0016]

In order to achieve the above object, a small motor with a speed reducer according to the present invention comprises a motor case of a motor unit mounted on a gear case of a speed reducer unit, and an output of a motor shaft of the motor unit. In the small motor with a speed reducer that outputs through the speed reducer unit, an electric input unit for electrically connecting a power supply line for flowing a current supplied to the motor to a motor side terminal, the motor case and It is provided on one of the gear cases. The electric input unit provided with the motor-side terminal is provided to connect the power supply line configured to be connected to the motor-side terminal by a connector of a connection unit, and a connection member for the connector is provided. A first connection means for mounting the power supply line and a power supply line configured to fix a core wire of a connection portion to the motor side terminal, wherein the core wire is electrically connected to the motor side terminal. Second connection means for accommodating the connection portion of the power supply line and guiding and supporting the power supply line.

In a preferred specific embodiment, the electric input portion has a bottomed hollow projection integrally formed on one of the motor case and the gear case, and the electric input portion extends from the bottom of the projection to the motor. The side terminals are configured to protrude into the internal space. The first connecting means is configured to hold the connecting member by engaging with a side wall that forms the protruding portion and on which the connecting member is mounted, and is engaged with a locked portion of the connecting member formed on the side wall. And the motor-side terminal and the connector are electrically connected via an auxiliary terminal provided on the connecting member. The second connection means includes the protruding portion that accommodates the connection portion of the power supply line in the internal space, and a support portion formed on the side wall portion for guiding and supporting the power supply line.

Preferably, the motor case has a hollow cylindrical housing with a bottom having a magnet attached to an inner peripheral surface thereof, a lid member attached to an opening of the housing and attached to a housing of the gear case. Wherein the projection is integrally formed on the gear case, and a pair of the motor-side terminals are arranged on the lid member so as to protrude outward from the lid member in parallel with a central axis direction of the motor shaft. When the lid member is mounted on the storage portion of the gear case, the motor-side terminal passes therethrough, and after the lid member is mounted, the motor-side terminal is arranged to protrude from the substantially central portion of the bottom into the internal space. A pair of slits are formed in the protrusion.

For example, in the motor case, a pair of first flat portions forming a surface parallel to the direction of the center axis of the motor shaft are formed parallel to each other, and the motor side terminal is connected to both of the motor side terminals. The gear case is located between both planes of the first flat portion and is arranged in parallel with the first flat portion. The gear case has a surface parallel to the central axis direction of the motor shaft, and A pair of second flat portions parallel to the first flat portion are formed parallel to each other, and the protrusion is located between both planes formed by the two second flat portions and the second flat portion is formed. It is arranged in parallel with the part. Thus, the motor is rotated by the current supplied from the battery of the vehicle through the power supply line and the motor-side terminal, so that the power window or the like of the vehicle can be driven.

In a small motor with a speed reducer according to one preferred specific embodiment, a motor case of a motor portion is mounted on a gear case of the speed reducer portion, and an output of a motor shaft of the motor portion is transmitted through the speed reducer portion. The motor case has a magnet mounted on an inner peripheral surface of a small motor with a reducer that outputs a power and drives a power window by rotating the motor shaft by a current supplied from a vehicle battery through a power supply line. A bottomed hollow cylindrical housing, and a pair of motor-side terminals attached to the opening of the housing and attached to the housing of the gear case, and electrically connected to the power supply line, are connected to the center axis direction of the motor shaft. And a cover member arranged in parallel and protruding outward. In the motor case, a pair of first flat portions that form a surface parallel to the center axis direction of the motor shaft are formed parallel to each other, and the gear case is parallel to the center axis direction of the motor shaft. And a pair of second flat portions parallel to the first flat portion are formed parallel to each other, and a bottomed hollow protrusion having a bottom portion and a side wall portion integrated with the bottom portion, The gear case is located between both planes formed by the two second flat portions and is formed integrally with the gear case so as to protrude therefrom. When the motor-side terminal passes through the mounting portion of the gear case, and after the lid member is mounted, the motor-side terminal protrudes from substantially the center of the bottom of the protruding portion into the internal space of the protruding portion. A pair of slits which are arranged in is formed on the protrusion. When connecting the power supply line configured to be connected to the motor-side terminal by a connector of a connection portion, a connecting member mounted on the connector is mounted on the side wall portion of the protruding portion, and on the side wall portion. The formed locking portion engages with the locked portion of the connecting member to hold the connecting member, so that the motor-side terminal and the connector can be connected to each other via an auxiliary terminal provided on the connecting member. Electrically connected. When connecting the power supply line having a configuration in which a core wire of a connection portion is fixed to the motor-side terminal, the connection portion of the power supply line in which the core wire is electrically connected to the motor-side terminal is connected to the protrusion. The power supply line is housed in the internal space and guided and supported by a substantially U-shaped groove formed in the side wall.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is an explanatory view showing a schematic configuration of a power window, FIG. 2 is a front view of a small motor with a speed reducer according to the present invention, FIG. 3 is a front sectional view showing an internal structure of the motor, and FIG. It is an assembly perspective view.

FIG. 5 is an internal structural diagram of the motor portion of the motor, which is viewed from the direction of the line VV in FIG.
FIG. 6 is an exploded front view of the motor, FIG. 7 is a side view showing the motor section, a view taken along line VII-VII of FIG. 6, and FIG. 8 is a side view showing the reduction gear section. VIII line arrow view, FIG. 9
FIG. 2 is a partial front view showing a part of the motor in cross section.

The small motor with a speed reducer is, for example, a power window for automatically opening and closing a window glass of an automobile, an electric sunroof mounted on a ceiling of a vehicle body, and a wiper mounted on a front window or a rear window. It is used for an actuator for driving an electrical device, an actuator for driving various devices other than the electrical device, and the like.

FIG. 1 shows a case in which a small motor (motor) 11 with a speed reducer is used for the power window 10. As shown in FIG. 1, in the power window 10, when the wire cable 12 moves by being driven by the motor 11, the window glass 13 locked by the wire cable 12 moves up and down as shown by the arrow B. ing.

The driving current supplied from the battery 14 of the vehicle is supplied to the motor 11 through the power supply line 16 after the control circuit 15 performs on / off control and switching control between forward and reverse rotation. The motor 11 rotates in the forward and reverse directions by the current to drive the power window 10.

Motor 1 used for power window 10
The main functions required of 1 include, for example, the following items. (1) Water may be applied to the motor 11 when driving in the rain or when washing the car, so that the motor 11 must be sufficiently waterproof. (2) Since the motor 11 is assembled in a narrow space inside the door of the automobile, the entire motor 11 must be thin. In the present invention, the work of connecting the power supply line is simplified, the motor is standardized and shared, and the waterproofness (the function (1)) is achieved.
Thickness of the motor as a whole while ensuring the above (Function (2))
We are also planning.

As shown in FIG. 2 to FIG.
Has a motor section 20 and a reduction gear section 21 attached to the motor section 20. Motor case 2 of motor section 20
2 is provided on the end surface 26 of the gear case side mounting portion 25 provided on the gear case 24 of the reduction gear unit 21 with the sealing member 2.
7 is attached. That is, the seal member 27 is interposed between the flange portion 23 and the gear case side attachment portion 25, and is fixedly fastened by the attachment bolt 30. As a result, a structure is provided in which water hardly enters the motor interior 28. I have.

The seal member 27 formed of a resilient material is integrally formed in an endless annular shape with rubber such as natural rubber or synthetic rubber, or synthetic resin. Since the seal member 27 is formed in an endless annular shape by rubber or the like, the flange portion 23 of the motor case 22 and the gear case side mounting portion 25 are formed.
The joint between the end face 26 and the end face 26 is sealed in a planar shape. As a result, the joint is sufficiently sealed by the seal member 27, and the waterproofness of the motor 11 is ensured.

The output of the motor shaft 29 of the motor section 20 is output via the reduction gear section 21. The distal end of the motor shaft 29 is rotatably supported on the gear case 24 by a bearing 31, and a worm 32 is attached to the motor shaft 29. A worm wheel 33 that meshes with the worm 32 is rotatably provided inside the gear case 24, and an output shaft is attached to the center of the worm wheel 33 via a buffer (not shown) or the like.

The motor section 20 has a magnet 51 mounted on the inner peripheral surface 50 of the motor case 22 and a rotor 54 disposed inside the magnet 51. The rotor 54 is provided inside the motor case 22 and faces the magnet 51,
The motor case 22 is rotatably supported. The rotor 54 includes a motor shaft 29 extending in the direction of a center axis C serving as a rotation center, and an armature 52 and a commutator 53 attached to the motor shaft 29, respectively.

The armature 52 is configured by winding an armature winding 65 in a coil shape around a core 64 attached to the motor shaft 29. The armature winding 65 is electrically connected to the commutator 53. The core 64 is disposed on the inner peripheral surface of the magnet 51 with a predetermined gap therebetween. The motor shaft 29 is rotatably supported by bearings 57 and 58 provided on the motor case 22. The motor case 22 includes a hollow cylindrical housing 59 having a rigid structure and a bottom, and a lid member 61 fitted and attached to the opening 60 of the housing 59 and attached to the storage portion 35 of the gear case 24. ing.

The housing 59 is formed of a metal material such as steel, and the lid member 61 is integrally formed of, for example, a resin material or another insulating material. Housing 59
Are integrally formed by press molding or the like, and the flange portion 23 is also integrated with the housing 59. The bearings 57 and 58 are provided at both ends of the motor case 22, respectively. One bearing 57 is the housing 5
9, the other bearing 58 is attached to the lid member 61, respectively.

The motor case 22 has a pair of first flat portions 62 which form a surface parallel to the direction of the axis C, and are formed parallel to each other. Similarly, a pair of second flat portions 63 which form a surface parallel to the direction of the axis C and are parallel to the first flat portion 62 are formed in the gear case 24 in parallel with each other. Thereby, the entire motor 11 is thinned. The cylindrical portion of the housing 59 is integrated with the first flat portion 62, and the pair of magnets 51 are fixed to the inner peripheral surface 50 of the cylindrical portion and arranged to face each other.
The magnet 51 is formed in an arc segment shape from a magnetic material such as hard ferrite.

As shown in FIGS. 3 and 5, a plurality of sets (for example, two sets) of brushes 55 made of a conductive material such as carbon are slidably engaged with the commutator 53 on the lid member 61. It is provided so that a driving current flows. The brush arm 56 holding the brush 55 is connected to the motor case 22.
It is installed inside. That is, one end 56 a of the brush arm 56 is fastened and fixed inside the lid member 61 by a fixing member such as a mounting stud 66.

As shown in FIGS. 3 to 9, a plurality (for example, a pair) of motor-side terminals 67 electrically connected to the brush arms 56 are attached to the lid member 61. The motor-side terminal 67 is electrically connected to a power supply line through which a current supplied to the motor 11 flows. The pair of motor-side terminals 67 project parallel to each other and outward from the lid member 61, and are arranged in a direction parallel to the first and second flat portions 62 and 63. The motor-side terminal 67 is located between the two flat surfaces of the first flat portions 62 of the motor case 22. The pair of motor-side terminals 67 are connected to the pair of brush arms 5.
6 are electrically connected to each other.

There are a variety of shapes, structures, and lengths of power supply lines. The power supply line is connected to the motor-side terminal 67 by the connector 71 of the connection portion (so-called,
(Connector connection type) power supply line 16a or connection (so-called harness type) power supply line 1 in which core wire 74 of the connection portion is fixed to motor-side terminal 67 by soldering or caulking.
6b. It is desirable that the power supply line can be easily connected to the motor-side terminal 67 regardless of the type and the connection portion.

Therefore, in the present invention, an electrical input portion for electrically connecting the power supply line to the motor-side terminal 67 is provided in one of the motor case 22 and the gear case 24. In the present embodiment, the electrical input section 70 provided with the motor-side terminal 67 is provided on the gear case 24. In the electrical input unit 70, a bottomed hollow projection 76 forming an internal space 86 is integrally formed with a motor case or a gear case (in the present embodiment, the gear case 24), and the motor-side terminal 67 is formed. , Projecting from the bottom 77 of the projection 76 into the internal space 86.

The projecting portion 76 includes a bottom portion 77 and the bottom portion 77.
And a side wall portion 80 having a rectangular cross section integrated with the side wall portion. The projecting portion 76 is provided on the second flat portion 63, 6 of the gear case 24.
3, and is formed integrally with the gear case 24 so as to protrude therefrom, and is disposed in parallel with the first and second flat portions 62 and 63.

The protruding portion 76 has a portion from the side wall portion 80 to the bottom portion 77.
, A pair of slit portions 85 is formed. When the lid member 61 is mounted on the storage portion 35 of the gear case 24, the slit portion 85 allows the motor-side terminal 67 to pass therethrough. After the lid member 61 is mounted, the motor-side terminal 67 is substantially at the center of the bottom 77 of the protrusion 76. It is formed in such a shape as to protrude into the internal space 86 from the portion.

The electric input unit 70 is connected to the first connecting means 73.
And second connection means 75. The first connection means 73 is used to connect a connector connection type power supply line 16 a connected to the motor-side terminal 67 by the connector 71. An adapter 72 as a connecting member is attached to the first connecting means 73. The connector adapter 72 has a configuration corresponding to the configuration of the connector 71, and is attached to the connector 71 and the first connection unit 73 to connect the connector 71 to the electrical input unit 70. belongs to. Note that the adapter 72 is
It is preferable that the connector 71 and the first connection means 73 can be detachably attached to each other.

The first connecting means 73 constitutes a protruding portion 76 and has a rectangular cross-section side wall portion 80 on which the adapter 72 is mounted.
And a locking portion 82 formed on the side wall portion 80. The locking portion 82 has a plurality of (for example, three) claws for engaging with the locked portion 81 of the adapter 72 and holding the adapter 72. Then, the first connection means 73
Via an auxiliary terminal 83 provided on the adapter 72,
The motor-side terminal 67 and the connector 71 are electrically connected.

The locking portions 82 are integrally formed on each side surface of the side wall portion 80 and on each outer peripheral surface of the end surface portion 80a integral with the side surface portion (that is, three in total). The locking portions 8 formed on the respective outer peripheral surfaces are respectively provided.
By arbitrarily selecting the number 2 (for example, zero, one, two, etc.), the total number of the locking portions may be one or two or more. Further, as a first connection means according to another embodiment, a configuration is adopted in which a locking portion is not provided on a side wall portion of a protruding portion, and a connecting member is mounted inside or outside the side wall portion. Is also good. In this case, it is preferable to hold the connecting member by fixing it to the side wall portion with an adhesive or a sealant.

The second connection means 75 is used to connect a harness type power supply line 16b for fixing the core wire 74 to the motor-side terminal 67. The second connecting means 75 is connected to the power supply line 16.
b formed on the upper edge of the end face portion 80a of the side wall portion 80 and the projecting portion 76 for accommodating the connection portion b in the internal space 86.
Two U-shaped (including V-shaped) groove portions 84 as support portions for guiding and supporting the two electric wires 6b, respectively.
And In addition, as this support part, the end face part 8
A through hole may be formed instead of forming the groove portion 84 in 0a. Thus, the second connection means 75 accommodates the connection portion of the power supply line 16b in which the core wire 74 is electrically connected to the motor-side terminal 67, and guides and supports the power supply line 16b.

A partition wall 87 for dividing the internal space 86 of the projection 76 into two parts is integrally attached to the projection 76 in a direction parallel to the second flat portion 63. As a result, the protruding portion 76 is partitioned by the partition wall 87 and has a left-right symmetric configuration, but may have a left-right asymmetric configuration. That is, in each internal space 86, the slit portion 85, the groove portion 84, and the motor-side terminal 67 are arranged.

FIG. 10 is a partial cross-sectional front view of the motor 11, showing a connector 71 a having a configuration different from that of the connector 71.
Adapter 72 for connecting the connector connection type power supply line 16a having
"a" indicates a mounted state. FIG. 11 shows XI of FIG.
A part is shown in a cross section in a view taken along a line −XI.

As shown in FIGS. 10 and 11, since there are various types of connector shapes and structures of the connector connection type power supply line 16a, the adapters 72 and 72a (FIGS. 4 and 10) , 71a are prepared respectively. The upper part of the adapter 72a is attached to the connector 71a, and the lower part is attached to the electrical input unit 70.

When the adapter 72a is attached to the side wall portion 80 of the electrical input section 70, the locked portion 8 on the adapter 72a side
1a is locked by the locking portion 82 on the motor side, and one end of the auxiliary terminal 83 of the adapter 72a is
7 and are electrically connected. In addition, adapter 7
When the connector 2a and the connector 71a are connected, the auxiliary terminal 83
Is electrically connected to a terminal (not shown) of the connector 71a. Thus, the motor-side terminal 67 and the connector connection type power supply line 16 a are electrically connected via the auxiliary terminal 83.

FIG. 12 shows a harness type power supply line 16b.
13 is a partial plan view showing a state in which the core wire 74 is connected to the electric input unit 70 of the motor 11. FIG. 13 is a part showing a state in which an internal space 86 of the protrusion 76 is filled with a sealing agent 88 for waterproofing. It is a top view. As shown in FIG. 12, the power supply line 16b
Is inserted into the internal space 86 from the groove 84 of the protruding portion 76, and the motor side terminal 6 is soldered or caulked.
7, the power supply line 16b and the motor-side terminal 67 are electrically connected.

In the case of a motor that does not require waterproofness, the motor may be used as it is.
When waterproofness is required as described above, it is necessary to take waterproofing measures after connecting the power supply line 16b. Therefore, FIG.
As shown in FIG. 3, if the internal space 86 is filled with the sealant 88 after the connection, the waterproofness is sufficiently ensured.

In FIGS. 10 and 11, when the connector connection type power supply line 16a is connected to the motor-side electric input section 70 via the adapter 72a, the space between the connector 71a and the adapter 72a and the adapter 72a If a seal material is interposed in each gap between the motor and the electric input unit 70 on the motor side or a sealant is filled, the waterproofness is sufficiently ensured.

In the power window 10 having the motor 11 having such a configuration, the drive current supplied from the battery 14 via the power supply line 16, 16a or 16b by the control signal from the control circuit 15 is supplied to the motor side terminal 67, the brush The current flows through the armature winding 65 via the arm 56, the brush 55, and the commutator 53. Then, a rotating force is applied to the rotor 54 existing in the magnetic field formed by the pair of magnets 51, and the rotor 54 makes a rotational motion in the forward and reverse directions.

When the motor unit 20 is driven to rotate the motor shaft 29 in this manner, the driving torque is
, And then transmitted from the worm 32 to the worm wheel 33, the cushioning material, etc. and the output shaft, and the output shaft rotates. As a result, the wire cable 12 of the power window 10 moves, and the window glass 13 automatically opens and closes.

According to the present invention, the minimum necessary dedicated components for the connector connection type power supply line 16a, ie, the adapter 7
2, 72a and the like may be prepared. Then, the feeder line 1 of either the connector connection type or the harness type
6a and 16b can be easily connected to the electrical input unit 70 of the motor 11 after the assembly is completed. When the connector connection type power supply line 16a is connected, the adapter 72, 72a is used to connect the electrical input unit 7 to the power supply line 16a.
0 can be connected. On the other hand, a harness type power supply line 1
When the motor 6b is connected, the motor 6 can be connected to the electrical input unit 70 after the assembly of the motor 11 is completed.

As described above, according to the present invention, the type of power supply line connectable to the electric input unit 70 of the motor 11 has flexibility. Therefore, inventory management can be performed in a state of a single motor having no power supply line connected thereto, and various power supply lines can be easily connected later to a single motor having the same configuration.

Further, since the motor 11 itself can be standardized, motor parts and finished motor products can be shared, and the number of finished motor products to be stocked can be reduced. As a result, the manufacturing process is simplified, the inventory management of the motor parts and the finished motor product is also simplified, and the cost reduction of the motor by mass production of small models and planned production can be realized.

In the case of the conventional motor 1 shown in FIG.
It is necessary to pass the power supply line 7 through the grommet-shaped seal portion 3a, and there is also a problem of waterproofness of the seal portion 3a. On the other hand, in the present invention, since there is no such a grommet-shaped seal portion, the work of attaching the power supply line is easy, the seal structure is simple, and the waterproofness is good.

Since the electric input unit 70 is disposed between the two flat surfaces of the opposing second flat parts 63, 63, the power supply line of either the connector connection type or the harness type can be protruded from the motor 11. Even when connected to the portion 76, the power supply line does not protrude outside the second flat portion 63. Further, the thickness between the first flat portions 62 is usually smaller than the thickness between the second flat portions 63.

Therefore, the thickness of the entire motor 11 is
It is not particularly thicker than the dimension between the flat portions 63, and is particularly preferable when used in the power window 10 which requires a thin motor. When the thickness of the entire motor is not strict, such as when the motor is used for electrical equipment other than the power window, the electric input unit 70 of the motor is moved in the lateral direction of the motor (that is, in the mounting direction of the present embodiment). (In a direction moved 90 degrees sideways around the axis C).

Since the motor-side terminal 67 is provided on the motor section 20, the motor section 20 is rotated alone before the motor section 20 is mounted on the reduction gear section 21, and the motor section 20 is rotated.
This is preferable because a single performance test can be performed. In addition, the case where the motor side terminal is provided in the reduction gear unit 21 may be adopted.
Further, the motor-side electric input unit 70 may be provided in the motor unit 20 instead of the speed reducer unit 21.

The present invention can be applied to other types of motors such as an AC motor and a stepping motor, besides the above-described DC motor, as long as the motor is a small motor with a speed reducer. In addition,
The same reference numerals in the drawings indicate the same or corresponding parts.

[0061]

According to the present invention, the power supply line connected to the motor-side terminal is connected by the connector,
In any case of connection by fixing the core wire,
The power supply line can be easily connected to the electrical input of the small motor with a reduction gear.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration of a power window.

FIGS. 2 to 13 show an example of an embodiment of the present invention, and FIG. 2 is a front view of a small motor with a speed reducer.

FIG. 3 is a front sectional view showing an internal structure of the motor.

FIG. 4 is a schematic assembly perspective view of the motor.

FIG. 5 is an internal structural diagram of a motor portion of the motor on a lid member side.

FIG. 6 is an exploded front view of the motor.

FIG. 7 is a side view showing the motor unit, and is a view taken along line VII-VII of FIG. 6;

FIG. 8 is a side view showing the reduction gear section, and is a view taken along line VIII-VIII in FIG. 6;

FIG. 9 is a partial front view showing a part of the motor in cross section.

FIG. 10 is a partial cross-sectional front view of the motor showing a state where an adapter is attached to connect a connector connection type power supply line to an electric input unit of the motor.

11 is a partial cross-sectional view taken along line XI-XI in FIG. 10;

FIG. 12 is a partial plan view showing a state where a harness type power supply line is connected to an electric input unit of the motor.

FIG. 13 is a partial plan view showing a state in which an inner space of a protruding portion is filled with a sealant.

FIG. 14 is a front view showing a conventional small motor with a speed reducer, and a part of the motor is shown in cross section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Power window 11 Small motor with reduction gear 14 Battery 16, 16a, 16b Power supply line 20 Motor part 21 Reduction gear part 22 Motor case 24 Gear case 29 Motor shaft 35 Storage part 50 Inner peripheral surface 51 Magnet 59 Housing 60 Opening 61 Cover member 62 First flat part 63 Second flat part 67 Motor side terminal 70 Electrical input part 71, 71a Connector 72, 72a Adapter (connection member) 73 First connection means 74 Core wire 75 Second connection means 76 Projection 77 Bottom part 80 Side wall part 81, 81a Locked part 82 Lock part 83 Auxiliary terminal 84 Support part (groove part) 85 Slit part 86 Internal space C Center axis

Claims (5)

[Claims] A motor case (2) for a motor section (20).
2) is a small motor with a reduction gear attached to the gear case (24) of the reduction gear section (21) to output the output of the motor shaft (29) of the motor section via the reduction gear section. ) Through which the current supplied to
6, 16a, 16b) is provided on one of the motor case and the gear case for electrically connecting the motor-side terminal (67) to the motor-side terminal (67). The electrical input section is provided for connecting the power supply line (16a) configured to be connected to the motor-side terminal by a connector (71, 71a) of a connection section. 72,7
2a) is provided for connecting a first connection means (73) for mounting the power supply line (16b) having a configuration in which a core wire (74) of a connection portion is fixed to the motor-side terminal;
A second connection means (75) for accommodating the connection portion of the power supply line in which the core wire is electrically connected to the motor-side terminal and guiding and supporting the power supply line. Small motor with machine. 2. The electric input section (70) has a bottomed hollow protrusion (76) integrally formed on one of the motor case and the gear case, and the bottom of the protrusion (76). 77), the motor-side terminal is protruded into an internal space (86), and the first connection means (73) constitutes the protruding portion and a side wall portion (80) on which the connecting member is mounted. When,
The locked portion (81,
81a) and a locking portion (82) for holding the connecting member, and the motor-side terminal and the connector via an auxiliary terminal (83) provided on the connecting member. The second connection means (75) is formed on the side wall portion to guide the power supply line, the protrusion being configured to house the connection portion of the power supply line in the internal space. Supporting part to support (84)
The small motor with a reduction gear according to claim 1, comprising: 3. The motor case has a bottomed hollow cylindrical housing (59) having a magnet (51) attached to an inner peripheral surface (50), and is attached to an opening (60) of the housing. A cover member (61) attached to a storage part (35) of a gear case, wherein the gear case is integrally formed with the protrusion, and the cover member has a pair of the motor-side terminals of the motor shaft. The motor-side terminal passes when the cover member is mounted on the storage portion of the gear case, and the motor-side terminal passes through the cover member after the cover member is mounted. A pair of slits (8) for arranging the motor-side terminal so as to project into the internal space from substantially the center of the bottom.
The small motor with a reduction gear according to claim 2, wherein 5) is formed on the projecting portion. 4. A pair of first flat portions (62) forming a surface parallel to the central axis direction of the motor shaft are formed in the motor case in parallel with each other, and the motor-side terminal is connected to both of the motor-side terminals. Is located between both planes of the first flat portion (62) and is arranged in parallel with the first flat portion (62). The gear case is parallel to the central axis direction of the motor shaft. And a pair of second flat portions (63) parallel to the first flat portion are formed in parallel with each other, and the projecting portions are formed on both flat surfaces of the two second flat portions. The power window of the motor vehicle is located between the motor vehicle and a power window of the motor vehicle through a current supplied from a battery (14) of the motor vehicle through the power supply line and the motor-side terminal. Reduction gear with a small motor according to claim 3, characterized in that to drive the 10). 5. A motor case of a motor unit is attached to a gear case of a speed reducer unit, and outputs an output of a motor shaft of the motor unit through the speed reducer unit, and is supplied from a vehicle battery through a power supply line. A small motor with a reducer that drives the power window by rotating the motor shaft with a current flowing through the motor case, wherein the motor case has a bottomed hollow cylindrical housing having a magnet attached to an inner peripheral surface thereof, and an opening in the housing. A cover member mounted on the housing of the gear case and electrically connected to the power supply line, wherein a pair of motor-side terminals are disposed so as to protrude outward in parallel with the center axis direction of the motor shaft. A pair of first flat portions forming a surface parallel to the central axis direction of the motor shaft are formed in the motor case in parallel with each other; A pair of second flat portions that form a surface parallel to the central axis direction of the motor shaft and that are parallel to the first flat portion are formed parallel to each other, and a bottom portion and an integral portion of the bottom portion A bottomed hollow protruding portion having a side wall portion is formed between the two flat surfaces formed by the two second flat portions of the gear case, and is integrally formed with the gear case so as to protrude therefrom. The motor-side terminal passes when the cover member is mounted on the storage portion of the gear case, and the motor is disposed substantially in the center of the bottom of the protrusion after the cover member is mounted. A pair of slits are formed in the protruding portion for arranging the side terminal so as to protrude into the internal space of the protruding portion, and connect the power supply line configured to be connected to the motor-side terminal by a connector of a connecting portion. In this case, the connecting member mounted on the connector is mounted on the side wall of the projecting portion, and the locking portion formed on the side wall engages with the locked portion of the connecting member. By holding the connection member, the motor-side terminal and the connector are electrically connected via an auxiliary terminal provided on the connection member, and a core wire of a connection portion is fixed to the motor-side terminal. When connecting the power supply line, the connection portion of the power supply line, the core wire of which is electrically connected to the motor-side terminal, is housed in the internal space of the protrusion, and is formed on the side wall portion. A small motor with a speed reducer, wherein the power supply line is guided and supported by a substantially U-shaped groove (84).