CN1090835C

CN1090835C - Motor

Info

Publication number: CN1090835C
Application number: CN 96100559
Authority: CN
Inventors: 斉藤康一; 森崎昌彦; 河本松雄
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 1996-03-01
Filing date: 1996-04-30
Publication date: 2002-09-11
Anticipated expiration: 2016-04-30
Also published as: JPH09238440A; JP3700236B2; CN1159091A

Abstract

The invention discloses a motor. Electrically insulating walls 3 are provided between 1st terminals 1a and 2nd terminals 1b which are provided in a connector part on a connection plate 2. Portions of the 1st terminals 1a and the 2nd terminals 1b are made to protrude from the connection plate 2 and the protruding portions are covered with a connector 4 to provide the I/O unit of external/internal signals. With this constitution, an electrical short-circuit between the 1st terminal 1a and the 2nd terminal 1b can be avoided, so that the breakdown of an electronic component in an electronic circuit can be avoided.

Description

Motor

The present invention relates to be used for the motor in the household electrical appliance that the air conditioner drive fan uses.

In recent years, motor requires to reduce cost, to reduce work hours, and in order to satisfy these harsh requirements, often adopts and have the circuit substrate terminal block motor of (below be called terminal block).Below, in the past motor is described.

Fig. 7 (a) represents motor, the particularly cutaway view of compression molding motor.The oblique view of the stator assembly that has wiring usefulness part before the resin-molded moulding of Fig. 7 (b) expression.The A-A cutaway view of the terminal block of Fig. 7 (c) presentation graphs 7 (b).In the drawings, it is freely rotatable that rotor 15 relies on bearing 16 supports.The outer peripheral face of rotor 15 set stator core and with its maintenance predetermined gap, in a plurality of grooves of stator core 14, be wound with stator coil 5 by coil former 12.Encase the terminal block 17 of conducting metal 20 with synthetic resin 19, the connecting portion that burns out protective device 9 with stator line chart 5, fuse etc. and be used to be connected the lead-out wire 11 of external electrical circuit forms one and it is exposed, and is provided on the stator coil 5.In addition.Be to utilize the connector 4 that is wholy set on the terminal block 17 to realize being connected of lead-out wire 11.

Like this, on the stator core 14 that is wound with stator coil 5, set terminal block 17, behind the stator assembly shown in the assembly drawing 7 (b), utilization is contained in the synthetic resin 13 that motor outside compression molding is used, shell to this stator assembly carries out compression molding, and rotor 15 is contained in the stator assembly of this resin-molded moulding by bearing 16 usefulness supports 22, make the motor shown in Fig. 7 (a).

Fig. 8 represents the details drawing of the connector portion of terminal block in the past.Terminal block in the past, the first terminal 1a that will be electrically connected with stator coil 5 and be arranged on the terminal block 17 simultaneously with the second terminal 1b that electronic components such as Hall (ホ-Le) element are electrically connected, the part of the first terminal 1a and the second terminal 1b is outstanding and utilize connector 4 to hide this from terminal block 17, with this connector 4 as with the input and output portion (becoming connector portion) of the electric signal of outside.

Yet,, have following problem with aforementioned structure in the past.

Usually, in the connector portion of terminal block 17, there is the light current circuit use the forceful electric power circuit that the first terminal 1a that is electrically connected with stator coil 5 constitutes and to use the second terminal 1b that is electrically connected with electronic component such as Hall element to constitute simultaneously, aforementioned forceful electric power circuit and light current circuit must fully insulate, between aforementioned forceful electric power circuit and light current circuit, produce the occasion of high potential difference, at the first terminal 1a that belongs to the forceful electric power circuit with belong to and to produce electric short circuit between the second terminal 1b of light current circuit and damage electronic component in the light current circuit.

Whole at the stator of motor as shown in Figure 7 with resin-molded moulding and the occasion of utilizing synthetic resin that the first terminal 1a and the second terminal 1b are insulated, because of complex-shaped between terminal and the gap is little, the flowability of synthetic resin is poor, produces the lack of fill of synthetic resin sometimes and causes defective insulation.

The present invention provides electric short circuit that can prevent forceful electric power circuit and light current circuit and the motor stator that can not produce defective insulation for solving aforementioned problems.

For reaching aforementioned purpose, motor of the present invention was provided with and was wound on the first terminal that the stator coil on the stator core is electrically connected simultaneously and is electrically connected with electronic component with Motor Control such as Hall element in the connector portion of terminal block second terminal, and the wall of being made up of electrical insulators is set between the aforementioned the first terminal and second terminal.

In addition, motor of the present invention is provided with and is wound on the first terminal that the stator coil on the stator core is electrically connected and second terminal that is electrically connected with electronic component with Motor Control such as Hall elements simultaneously in the connector portion of terminal block, between the aforementioned the first terminal and second terminal, through hole is set, and after setting terminal block on the stator coil of the stator core that is wound with stator coil with aforementioned through hole, with this stator integral die, form the stator assembly of resin-molded moulding with synthetic resin.

Thus, can provide electronic components such as not damaging Hall element can't produce the motor of defective insulation.

The motor of the present invention the 1st aspect, be in the motor that possesses the terminal block that electronic component is installed, at second terminal that the first terminal that is electrically connected with stator coil on stator core is set in the connector portion of aforementioned terminal block simultaneously and is electrically connected with electronic component with Motor Control such as Hall element, by the wall of being made up of electrical insulators is set between the aforementioned the first terminal and second terminal, make between the aforementioned the first terminal and second terminal and insulate, between forceful electric power circuit and light current circuit, can not produce electric short circuit and can not damage control electronic components such as Hall element.

The motor of the present invention the 2nd aspect, be in the motor that possesses the terminal block that electronic component is installed, the first terminal that stator coil on the stator core is electrically connected and second terminal that is electrically connected with electronic component with controls such as Hall elements are set and are wound in the connector portion of terminal block simultaneously, between the aforementioned the first terminal and second terminal, through hole is set, and after setting terminal block on the stator coil of the stator core that is wound with stator coil with aforementioned through hole, with synthetic resin earlier with this stator integral die, form the stator assembly of resin-molded moulding, because of between the first terminal and second terminal, positively being filled with synthetic resin, so can electric insulation between the first terminal and second terminal, can between the first terminal and second terminal, not produce electric short circuit and can not damage control electronic components such as Hall element.

Adopt foregoing the present invention, owing between second terminal of the first terminal that is arranged at the forceful electric power circuit in the connector portion of terminal block and light current circuit, be provided with the wall of electric insulation, can short circuit between the first terminal and second terminal, thus electronic components such as Hall element can not damaged.

In addition, through hole is set being arranged between the first terminal in the connector portion of terminal block and second terminal, after setting this terminal block on the stator coil, use the molding synthetic resin moulding, because of by through hole filled synthetic resin positively between the first terminal and second terminal, so can short circuit between the first terminal and second terminal and can not damage electronic component such as Hall element.

Fig. 1 represents the details drawing of connector portion of the motor wiring plate of the embodiment of the invention 1.

Fig. 2 represents to possess the oblique view of the stator core of same terminal block.

Fig. 3 represents the plane and the cutaway view of same stator core.

Fig. 4 represents the details drawing of same terminal block.

Fig. 5 represents the details drawing of connector portion of the motor wiring plate of the embodiment of the invention 2.

Fig. 6 represents the figure of the compression molding resin flows of same embodiment.

The cutaway view of Fig. 7 (a) expression motor.

Fig. 7 (b) expression possesses the oblique view of the stator core of terminal block in the past.

A-A cutaway view among Fig. 7 (c) presentation graphs 7 (b).

Fig. 8 represents the details drawing of the bonder terminal of motor wiring plate in the past.

Below, with reference to accompanying drawing embodiments of the invention are described.

Embodiment 1

Fig. 1 represents the details drawing of bonder terminal portion of the motor wiring plate of the embodiment of the invention 1.With different in the past parts is the wall 3 that is provided with electrical insulation properties between the first terminal 1a that is arranged at the connector portion on the terminal block 2 and the second terminal 1b.The part of this first terminal 1a and the second terminal 1b is outstanding from terminal block 2, and this place is connected device 4 and hides, and becomes the input and output portion of the electric signal of coming from the outside.Utilize this structure, between the first terminal 1a and the second terminal 1b, can not produce electric short circuit and can not damage the electronic component of light current circuit.

Fig. 2 is illustrated in and sets the terminal block shown in the embodiment 1 on the stator core that is wound with stator coil 5.Here coil former 12 is used for making stator coil 5 insulation.

Fig. 3 represents to possess the plane and the cutaway view of the stator core of other form terminal block.

As shown in the figure, terminal block 2 ' be provided on the stator coil 5 on the utmost point tooth (not shown) that is around in stator core 14.Here; as shown in Figure 4; with synthetic resin 19 encase the conducting metal 20 that is stamped to form by the rotating model extrusion process by electric conducting material integrally form terminal block 2 ', and make the portion of terminal 23 that is connected with stator coil 5, the terminal 1a and the 1b of the connector 4 that is electrically connected with external mechanical or burn out other coupling part such as protective device 9 and expose.The wall of being made up of insulator 3 that is arranged between the first terminal 1a and the second terminal 1b also integrally is arranged on the terminal block.

Here, integrally be arranged at portion of terminal 23 and terminal block 2 ' on teat 24 on stator coils wound 5, and connect terminal block 2 ' and stator coil 5.In addition, oblique line is partly represented electric conducting material in the drawings, and remainder utilizes synthetic resin to form.

Like this, the terminal block of other form outside promptly shown in Figure 4, the also available wall of being made up of insulator 3 makes between the first terminal 1a and the second terminal 1b insulation and can not produce electric short circuit.

Embodiment 2

Fig. 5 represents the details drawing of bonder terminal portion of the motor wiring plate of the embodiment of the invention 2.The parts different with embodiment 1 are that the wall that through hole 7 substitutes electrical insulators is set between the first terminal 1a and the second terminal 1b.As shown in Figure 7, utilize this structure, in the occasion of motor stator assembling integral body being carried out casting mold, manufacturing compression molding motor, as shown in Figure 6, and by through hole 7 synthetic resin 8, topped stator surface of filling and the first terminal 1a, the second terminal 1b.For this reason, synthetic resin can positively be filled between the first terminal 1a and the second terminal 1b, because of can electric insulation between the first terminal 1a and the second terminal 1b, so can not produce electric short circuit and can not damage the electronic component of light current circuit between two-terminal.

In addition, the wall 3 and the through hole 7 of electrical insulators is set on terminal block, also can guarantees to insulate more.

Claims

1. motor, comprise the terminal block that electronic component is installed, it is characterized in that, on described terminal block, be provided with and be wound on the first terminal that the stator coil on the stator core is electrically connected and second terminal that is electrically connected with electronic component with Motor Control such as Hall elements simultaneously, the wall of being made up of electrical insulators is set between the described the first terminal and second terminal, on described the first terminal and described second terminal, is provided with from the connector of outside input electric signal.

2. motor, comprise the terminal block that electronic component is installed, it is characterized in that, on described terminal block, be provided with and be wound on the first terminal that the stator coil on the stator core is electrically connected and second terminal that is electrically connected with electronic component with Motor Control such as Hall elements simultaneously, between the described the first terminal and second terminal, through hole is set, comprises the described the first terminal and second terminal and utilize the stator core and the described terminal block of the resin described coiling of compression molding integrally.