JP2582491Y2 - Small motor - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small motor for rotating a wind direction plate provided at an air outlet of an air conditioner.

[0002]

2. Description of the Related Art Conventionally, in this kind of small motor,
In order to connect the winding wound on the bobbin of the motor body to an external power source, as shown in FIG. 9, a lead wire with a connector 4 is attached to a substrate 3 to which terminals 2 drawn from the motor body 1 are connected. 5 are connected by soldering, and as shown in FIG. 10, lead wires 5 with connectors 4 are directly soldered to the terminals 2.

[0003]

However, in the structure in which the lead wire 5 is connected to the small-sized motor side as in the above-mentioned conventional art, the length of the lead wire once connected cannot be changed, so that the user is not allowed to change the length. In accordance with the demand, there is a problem that a small motor to which lead wires 5 of various lengths are connected must be prepared, and the lead wire is easily obstructed when handling the small motor. There was a risk that an excessive force was accidentally applied. Therefore, in order to solve the above problem, as shown in FIG. 11, a connector 6 is erected on a substrate 3 and lead wires 5 having connectors 4 connected to both ends are detachably connected to the connector 6. However, in this case, the distance L between the upright connector 6 and the center of the motor main body 1 becomes large, so that there is a problem that the space occupied by the small motor as a whole increases, and FIG. For the substrate 3 shown in FIG. 11, since the terminal 2 and the connector 6 project in opposite directions, it is necessary to use a double-sided substrate having through holes, which has a problem of increasing the manufacturing cost. In order to solve the above problems, the present inventors have made intensive studies and, as a result, have developed a new small motor. The small motor is a small motor including a motor body, a container for housing the motor body, and a board connected to a terminal drawn out of the motor body at an opening formed in the container, A connector connected to the terminal is provided on the substrate with a connection port for an external connector facing the direction of the connector along a rotation axis of the motor body, and a lead wire is used for handling the motor. Can easily get in the way and can avoid problems such as the erroneous application of force to the lead wires.In addition, the distance between the connector and the center of the motor body can be reduced. In addition to being able to
A single-sided substrate can be used and can be manufactured at low cost. By the way, for example, there is a heat exchanger and the like inside the air conditioner that is going to use the above-mentioned small motor, and dew condensation occurs on these, and drops,
This countermeasure was necessary because it could adversely affect the board and connector of the small motor.

The present invention has been made in view of the above circumstances, and an object of the present invention is to reliably prevent external influences such as dew condensation on a substrate and a connector portion, and to provide a long-term operation. An object of the present invention is to provide a small motor that can be used stably over a long period of time.

[0005]

In order to achieve the above object, a first aspect of the present invention is to provide a motor body, a container for accommodating the motor body, and the motor body in an opening formed in the container. And a board connected to a terminal drawn out of the motor, wherein a connector connected to the terminal has a connection port with a corresponding external connector on the board along a rotation axis of the motor body. The opening is provided with a cover for covering the substrate and the connector, and the connector is provided with the motor
It is engaged with the yoke of the main body. According to a second aspect of the present invention, a locking portion for engaging with a connector is provided on an inner wall surface of the cover.

[0006]

According to the first aspect of the present invention, the connector is provided on the board with the connection port facing in the direction along the rotation axis of the motor body, and the board is covered with a cover to prevent condensation or condensation. The board and connector are protected from external adverse effects such as external force, and the yoke of the motor body
By engaging the connector with the connector
When an external connector is
Such a force is received by the yoke, and no force is applied to the substrate
To do. Further, according to the second aspect of the present invention, when the external connector is attached to or detached from the connection port of the connector by the locking portion provided on the inner wall surface of the cover, the force applied to the connector is received by the cover. So that no force is applied to the substrate.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIGS. 1 to 6 show a first embodiment of the present invention. In these figures, reference numeral 10 designates a bottomed cylindrical cup 100 and a mounting plate 101 for closing the cup 100. FIG. A motor body 11 including a rotatably provided rotor and a stator 110 provided on the outer periphery of the rotor, and a reduction gear connected to a rotating shaft of the rotor. Group 1
2 are stored. And the mounting plate 1 of the container 10
01 are formed at both ends with U-shaped ears 102,
Mounting screws 13 inserted into these ears 102 are screwed and fixed to mounting protrusions 14 of the air conditioner (see FIG. 3). Further, the reduction gear group 12
An output shaft 120 protruding from the mounting plate 101 is connected to a wind direction plate of an air conditioner via a coupling 15. Further, the stator 110
Each of the bobbins 112 includes a plurality of yokes 111 having a number of teeth serving as magnetic poles, teeth formed on the bottom of the cup 100 and serving as magnetic poles, and a pair of bobbins 112.
Are wound with coil windings 113, respectively, and the ends of the coil windings 113 pulled out therefrom are respectively connected to predetermined terminals 114. And each of these terminals 1
14 is inserted into the board 115 and soldered on the outer surface side of the board 115, and the board 115 is exposed to the opening 116 formed on the upper surface of the cup 100 of the container 10.

A plurality of L-shaped pins 160 inserted into the connector 16 are inserted into the board 115 and soldered on the outer surface of the board 115. The external connector 17 is detachably mounted on the 161. The distal end of the lead wire 18 connected to the external connector 17 is connected to a power supply (not shown). A locking projection 162 is formed on the back surface of the connector 16, and the rear surface 163 of the locking projection 162 has a circumferential surface to avoid the coil winding 113 wound around the bobbin 112. It is formed in a shape. The locking projections 162 of the connector 16 are engaged with the flange portions 112a of the bobbins 112 and a pair of yokes 111 (referred to as a yoke portion Y) therebetween. Further, around the board 115 and the connector 16, the cover 19
A cover body 190 composed of two side walls is provided,
The cover body 190 is sandwiched between the bobbin 112 of the motor body 11 and the cup 100. An engagement groove 191, an engagement hole 192, and a locking projection 193 are formed on a pair of opposed side walls of the cover main body 190, respectively, and a side wall connecting the pair of opposed side walls is formed. Has a pair of engagement holes 194 formed therein. Furthermore, a pair of engagement protrusions 196 of an L-shaped lid 195 are fitted into both engagement grooves 191 of the cover main body 190,
In addition, the four engaging claws 197 and 198 of the cover 195 are locked in the engaging holes 192 and 194 of the cover body 190, and the cover 195 is detachably mounted on the cover body 190. And the cover 19
The opening 116 of the cup 100 of the container 10
The substrate 115 and the connector 16 which are exposed to the outside are covered. The connector 16 is engaged with both locking projections 193 of the cover body 190, and the cover body 190 is supported by the mounting plate 101 of the container 10.

In the small motor constructed as described above, first, the mounting screws 13 inserted into the ear portions 102 formed at both ends of the mounting plate 101 of the container 10 are attached to the mounting projections 14 of the air conditioner. While the cover 195 of the cover 19 is removed.
The external connector 17 is inserted into the connection port 161 of the connector 16 attached to the connector 15 to connect the two. At this time, the external connector 17 connects the connector 16 to the motor body 1.
Although the connector 16 is pressed along one axis, the connector 16 is supported by the cover main body 190 via the locking projection 193 and the cover main body 190 is supported by the mounting plate 101, so that the connector 16 is applied to the connector 16. No force is applied to the substrate 115, so that no large load is applied to the substrate 115 and the terminals 114. Also, when it becomes necessary to remove the external connector 17 from the connector 16, the force applied to the connector 16 is applied to the locking projection 162 of the connector 16.
Is received by the yoke portion Y, the force applied to the connector 16 is not applied to the substrate 115. Next, a pair of engaging protrusions 196 of the L-shaped lid 195 are fitted into the two engaging grooves 191 of the cover main body 190 and slid, and the respective engaging holes 192 and 194 of the cover main body 190 are slid.
Then, the four engaging claws 197 and 198 of the cover 195 are locked, and the cover 195 is mounted on the cover main body 190. As a result, the cover 19 covers the substrate 115 and the connector 16 which are exposed at the opening 116 of the cup 100 of the container 10. Therefore, the board 115, the terminals 114, the connectors 16 and the like inside the cover 19 can be reliably protected. In this way, since the external connector 17 is connected to the connector 16 on the small motor side as necessary, after attaching the small motor, the external connector 18 having the lead wire 18 of a desired length is connected. Therefore, no excessive force is applied to the lead wires 18 at the time of mounting the motor, and it is possible to flexibly cope with the mounting position of the motor. Also, terminals 114 attached to the substrate 115
Further, since the pins 160 of the connector 16 are both soldered on the outer surface side of the substrate 115, the substrate 115 can be a single-sided substrate, and can be manufactured at low cost. Further, since the external connector 17 is configured to be inserted into and removed from the connector 16 along the axis of the motor body 11, the operability is good and the distance between the connector 16 and the axis of the motor body 11 is improved. Can be reduced, and the size of the motor can be reduced.

In view of the fact that the external connector 17 is configured to be inserted into and removed from the connector 16 along the axis of the motor body 11, as shown in FIG.
The pin 160 bent at right angles at two places is attached to the substrate 115.
The soldering is carried out on the
4 is mounted in the through hole of the substrate 115 and the substrate 115
May be brought into contact with the support member 20 provided on the yoke portion Y. Also, as shown in FIG.
0 on the board 115 and the connector 16
May be brought into contact with the yoke portion Y.

[0012]

[Effect of the Invention] As described above, claim 1 of the present invention
A motor body, a container for housing the motor body,
A small motor comprising a board connected to a terminal drawn out of the motor body at an opening formed in the container, wherein the board has a connector connected to the terminal, and a connector connected to the external connector. Is provided in a direction along the rotation axis of the motor body, a cover for covering the substrate and the connector is provided in the opening ,
In addition, since the connector is engaged with the yoke portion of the motor body, dew condensation can be achieved by covering the connector and the substrate with the connection port oriented in a direction along the rotation axis of the motor body. Alternatively, by protecting the board and the connector from external adverse effects such as external force, it is possible to reliably prevent the board and the connector from being adversely affected by external influences such as dew condensation. As well as external connectors
When the connector is attached or detached, the force
To reduce the force applied to the board.
Thus, damage to the substrate and the like can be smoothly prevented. According to a second aspect of the present invention, since the locking portion for engaging with the connector is provided on the inner wall surface of the cover, the connecting portion of the connector is provided by the locking portion provided on the inner wall surface of the cover. When the external connector is attached to and detached from the board, the force applied to the connector is received by the cover, thereby preventing the substrate from being subjected to an excessive force.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a cover unit.

FIG. 3 is a perspective view showing a mounting portion of the motor.

FIG. 4 is a front view showing an example of a connector.

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a bottom view of FIG. 4;

FIG. 7 is a sectional view showing a second embodiment of the present invention.

FIG. 8 is a sectional view showing a third embodiment of the present invention.

FIG. 9 is an explanatory diagram of a state where lead wires are connected to a conventional board by soldering.

FIG. 10 is an explanatory view of a state where a lead wire is directly soldered to a conventional terminal.

FIG. 11 is an explanatory diagram of a state in which an external connector is connected to a connector erected on a board.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Container 11 Motor main body 16 Connector 17 External connector 19 Cover 114 Terminal 115 Substrate 116 Opening 161 Connection port 193 Locking convex part (locking part) Y yoke part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H02K 5/22 H02K 3/50

Claims (2)

(57) [Scope of request for utility model registration] 1. A small motor comprising: a motor body; a container for housing the motor body; and a board connected to a terminal drawn out of the motor body at an opening formed in the container. In the board, a connector connected to the terminal is provided with a connection port for an opposing external connector directed in a direction along a rotation axis of the motor body, and a cover covering the board and the connector is provided in the opening.
The connector is provided and the connector is a yoke of the motor body.
A small motor engaged with the portion . 2. The small-sized motor according to claim 1, wherein a locking portion for engaging with the connector is provided on an inner wall surface of the cover.