JP3218403U - Electric motor wiring device - Google Patents

Abstract

An electric motor wiring apparatus including two sets of electrical connectors and capable of selecting and using a first circuit or a second circuit is provided. A motor wiring device includes m first electrical connectors (111 to 11m), n second electrical connectors (121 to 12n), a first circuit (C1), and a second circuit (C2). The first circuit C1 includes m first ends t11 to t1m, and is connected to the m first electrical connectors 111 to 11m, respectively. The second circuit C2 includes n second ends t21 to t2n, and is connected to the n second electrical connectors 121 to 12n, respectively. The first circuit C1 has a first circuit shape, the second circuit C2 has a second circuit shape, and the first circuit shape is different from the second circuit shape. [Selection] Figure 1

Description

  The present invention relates to a motor wiring device, and more particularly to a motor wiring device that includes two sets of electrical connectors and can be used by selecting a first circuit or a second circuit.

  A conventional electric motor (also referred to as a motor) typically has a set of conductive connectors, for example, a compressor, and the set of conductive connectors includes, for example, three conductive connectors. The three conductive connectors are respectively connected to three lead wires and connected to a specific circuit, and the other end is connected to three connectors of the compressor. The specific circuit may be, for example, a balanced circuit for generating three-phase power. However, such a design can work, but is still very inconvenient in use because it cannot prepare the appropriate type of circuit according to actual needs.

  An object of the present invention is to provide a motor wiring device that includes two sets of electrical connectors and that can be used by selecting the first circuit or the second circuit.

  An electric motor wiring device is provided, which includes m first electrical connectors, n second electrical connectors, a first circuit and a second circuit. The first circuit includes m first ends, and the m first ends are connected to the m first electrical connectors, respectively. The second circuit includes n second ends, and the n second ends are connected to the n second electrical connectors, respectively. m and n are positive integers, the first circuit has a first circuit shape, the second circuit has a second circuit shape, and the first circuit shape is the second circuit Different from shape.

  In order to make the above features and advantages of the present invention more apparent, the embodiments will be described in detail with reference to the accompanying drawings.

It is an application figure of the motor wiring apparatus in an Example. FIG. 2 is an application diagram of an embodiment in which m is 3 and n is 3 in FIG. FIG. 3 is a view showing a state in which the first electrical connector and the second electrical connector in the embodiment of FIG. 2 are provided on the upper lid. FIG. 4 is a diagram showing lead wires of the electric motor and the switch unit in the embodiment of FIGS. 2 and 3.

  Hereinafter, preferred embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is an application diagram of the motor wiring device 100 in the embodiment. The motor wiring device 100 includes m first electrical connectors 111 to 11m, n second electrical connectors 121 to 12n, a first circuit C1, and a second circuit C2.

  The first circuit C1 includes m first ends t11 to t1m, and the first ends t11 to t1m can be connected to the first electrical connectors 111 to 11m, respectively. The second circuit C2 includes n second ends t21 to t2n, and the second ends t21 to t2n can be connected to the second electrical connectors 121 to 12n, respectively. m and n are positive integers greater than 1. The first circuit C1 has a first circuit shape, the second circuit C2 has a second circuit shape, and the first circuit shape is different from the second circuit shape.

  As shown in FIG. 1, the first electrical connectors 111 to 11m are connected to the switch unit SW, and the second electrical connectors 121 to 12n are connected to the switch unit SW. There are m paths from the first electrical connectors 111 to 11m to the switch unit SW, and these paths correspond to the first electrical connectors 111 to 11m, respectively. There are n paths between the second electrical connectors 121 to 12n and the switch unit SW, and these paths correspond to the second electrical connectors 121 to 12n, respectively.

  The switch unit SW is connected to a stator connector of an electric motor (motor) 199, and has a plurality of paths between the switch unit SW and the electric motor 199. The switch unit SW is used for selecting the electric motor 199 to be connected to the first electrical connectors 111 to 11m or the second electrical connectors 121 to 12n.

  According to the embodiment, the motor wiring device 100 may further include an upper lid 150, of which the first electrical connectors 111 to 11 m and the second electrical connectors 121 to 12 n may be provided on the upper lid 150.

  FIG. 2 is an application diagram of an embodiment in which m is 3 and n is 3 in FIG. As in the embodiment of FIG. 2, the first electrical connectors 111-11m may include first electrical connectors 111, 112 and 113, and the second electrical connectors 121-12n are second electrical connectors 121, 122 and 123. May be included. As shown in FIG. 2, the first circuit shape of the first circuit C1 may be Y-shaped, and the first ends t11 to t1m may include first ends t11 to t13. The second circuit shape of the second circuit C2 may be a Δ shape, and the second ends t21 to t2n may include the second ends t21 to t23.

  As shown in FIG. 2, the first circuit C1 further includes passive elements P11, P12, and P13. The passive element P11 includes a first end connected to the first end t11 and a second end. The passive element P12 includes a first end connected to the first end t12 and a second end connected to the second end of the passive element P11. The passive element P13 includes a first end connected to the first end t13 and a second end connected to the second end of the passive element P11. According to an embodiment, the passive element P11 may include a winding, the passive element P12 may include a winding, and the passive element P13 may include a winding. In other embodiments, the passive element P11 may include a resistance, the passive element P12 may include a resistance, and the passive element P13 may include a resistance.

  As shown in FIG. 2, the second circuit C2 further includes passive elements P21, P22, and P23. The passive element P21 includes a first end connected to the second end t21 and a second end connected to the second end t22. The passive element P22 includes a first end connected to the second end t22 and a second end connected to the second end t23. The passive element P23 includes a first end connected to the second end t23 and a second end connected to the second end t21. According to an embodiment, the passive element P11 may include a winding, the passive element P12 may include a winding, and the passive element P13 may include a winding. In other embodiments, the passive element P11 may include a resistor, the passive element P12 may include a resistor, and the passive element P13 may include a resistor.

  As shown in FIG. 2, according to the embodiment, the motor wiring device 100 may further include a switch unit SW, and the switch unit SW may include a switch SW1, a switch SW2, and a switch SW3. The switch SW1 includes a first end connected to the first stator connector S1 of the electric motor 199 and a second end for selectively connecting to the first electrical connector 111 or the second electrical connector 121. The switch SW2 includes a first end connected to the second stator connector S2 of the electric motor 199 and a second end for selectively connecting to the first electrical connector 112 or the second electrical connector 122. The switch SW3 includes a first end connected to the third stator connector S3 of the electric motor 199 and a second end for selectively connecting to the first electrical connector 113 or the second electrical connector 123.

  According to the embodiment, the first stator connector S1, the second stator connector S2, and the third stator connector S3 of the electric motor 199 in FIG. 2 are U connectors for receiving three-phase electric power. V connector and W connector may be used.

  According to the embodiment, when the rotational speed of the electric motor 199 is smaller than the threshold value, the switch unit SW is controlled, the second end of the switch SW1 is connected to the first electrical connector 111, and the second end of the switch SW2 is connected to the first end. One electrical connector 112, and the second end of the switch SW3 is connected to the first electrical connector 113, whereby the first stator connector S1, the second stator connector S2 and The third stator connector S3 can be electrically connected to the first circuit C1.

  According to the embodiment, when the rotational speed of the electric motor 199 is larger than the threshold value, the switch unit SW is controlled, the second end of the switch SW1 is connected to the second electrical connector 121, and the second end of the switch SW2 is connected to the first end. And the second end of the switch SW3 is connected to the second electrical connector 123, so that the first stator connector S1, the second stator connector S2 and the second stator connector S2 of the electric motor 199 are connected. The third stator connector S3 can be electrically connected to the second circuit C2.

  The switches SW1, SW2, and SW3 in FIG. 2 are merely schematic, and the complete structure of the switches SW1, SW2, and SW3 is not limited to the illustration in FIG. According to an embodiment, any one of the switches SW1, SW2 and SW3 may be a single-pole double-throw switch, of which the first end of the switch is The stationary end of the switch may be used, and the second end of the switch may be the movable end of the switch. According to the embodiment, the switches SW1, SW2 and SW3 may adopt other appropriate types of switches or may be composed of a plurality of electronic elements.

  For example, when the motor 199 is a compressor and the ZEH (zero energy house, ZEH) air conditioning plan is adopted, when the compressor is operating in alternating current (AC), the switches SW1 to SW3 are adjusted so that the compressor Can be electrically connected to the first circuit C1 and fed by a Y-shaped circuit. In other cases, when the compressor is in direct current (DC) operation, the switches SW1 to SW3 may be adjusted so that the compressor is electrically connected to the second circuit C2 and fed by a Δ-shaped circuit. it can. Therefore, according to actual needs, the electric motor 199 can be electrically connected to an appropriate circuit so that the electric motor 199 can be stably operated at both high and low rotation speeds.

  FIG. 3 is a diagram illustrating a state in which the first electrical connectors 111 to 113 and the second electrical connectors 121 to 123 are provided on the upper lid 150 in the embodiment of FIG. FIG. 4 is a diagram showing lead wires of the electric motor 199 and the switch unit SW in the embodiment of FIGS.

  The upper lid 150 of FIG. 2 is schematically shown, and the upper lid 150 of FIG. 3 is close to an actual shape, but FIG. 3 is merely an example, and the design of the upper lid 150 is not limited to the design of FIG. As shown in FIG. 3, the upper lid 150 may be provided with two sets of electrical connector drawers, and the first set of electrical connector drawers is used to install the first electrical connectors 111, 112, and 113. May be used. The lead portion of the second electrical connector may be used to install the second electrical connectors 121, 122, and 123.

  As shown in FIG. 4, the insulated lead wire tubes 411, 412, 413, 421, 422 and 423 are visible. Among them, the insulated lead wire sleeves 411, 412 and 413 may cover three lead wires, respectively, and these three lead wires are electrically connected to the first electrical connectors 111, 112 and 113, respectively. The Insulated lead wire sleeves 421, 422, and 423 may each cover the other three lead wires, and these other three lead wires are connected to the second electrical connectors 121, 122, and 123b, respectively. Connected.

  By using the motor wiring device according to the embodiment, the electric motor 199 can be electrically connected to an appropriate circuit and supplied to the electric motor according to the situation of the electric motor operation. Both the speed and the low rotational speed can be stably operated, and unnecessary manual adjustment can be avoided.

  As mentioned above, although preferred embodiment of this invention was described, this invention is not limited to this embodiment, and unless it leaves | separates the meaning of this invention, all the changes with respect to this invention belong to the technical scope of this invention.

100 Motor wiring device
111-11m, 112, 113 First electrical connector
121-12n, 122, 123 Second electrical connector
C1 first circuit
C2 second circuit
t11 ~ t1m, t12, t13 First end
t21 to t2n, t22, t23 Second end
SW switch unit
SW1, SW2, SW3 switch
199 electric motor
P11, P12, P13, P21, P22, P23 Passive elements
S1 First stator connector
S2 Second stator connector
S3 Third stator connector
150 Top lid
411, 412, 413, 421, 422, 423 Insulated lead wire sleeve

Claims (10)

An electric motor wiring device,
m first electrical connectors,
n second electrical connectors,
a first circuit including m first ends, wherein the m first ends are respectively connected to the m first electrical connectors;
a second circuit including n second ends, wherein the n second ends are respectively connected to the n second electrical connectors;
m and n are positive integers, the first circuit has a first circuit shape, the second circuit has a second circuit shape, and the first circuit shape is the second circuit A motor wiring device that is different from the shape. The motor wiring device according to claim 1,
The motor wiring device further includes an upper lid,
The m first electrical connectors and the n second electrical connectors are provided on the upper lid. The motor wiring device according to claim 1,
m is 3, the first circuit shape is Y-shaped, the m first ends include a first first end, a second first end, and a third first end,
The first circuit further includes:
A first passive element including a first end connected to the first first end and a second end;
A second passive element including a first end connected to the second first end and a second end connected to the second end of the first passive element; and connected to the third first end. A motor wiring device including a third passive element including a first end and a second end connected to the second end of the first passive element. The motor wiring device according to claim 1,
n is 3, the second circuit shape is a Δ-shape, the n second ends include a first second end, a second second end, and a third second end,
The second circuit further includes:
A first passive element including a first end connected to the first second end and a second end connected to the second second end;
A first end connected to the second second end; a second passive element including a second end connected to the third second end; and a first end connected to the third second end; And a motor wiring device including a third passive element including a second end connected to the first second end. The motor wiring device according to claim 3 or 4,
The first passive element includes a first winding, the second passive element includes a second winding, and the third passive element includes a third winding. The motor wiring device according to claim 1,
m is 3, the first circuit shape is Y-shaped, the m first ends include a first first end, a second first end, and a third first end,
n is 3, the second circuit shape is a Δ-shape, the n second ends include a first second end, a second second end, and a third second end,
The first circuit further includes:
A first passive element including a first end connected to the first first end and a second end;
A second passive element including a first end connected to the second first end and a second end connected to the second end of the first passive element; and connected to the third first end. A third passive element including a first end and a second end connected to the second end of the first passive element;
The second circuit further includes:
A fourth passive element including a first end connected to the first second end and a second end connected to the second second end;
A first end connected to the second second end; a fifth passive element including a second end connected to the third second end; and a first end connected to the third second end; And a motor wiring device including a sixth passive element including a second end connected to the first second end. The motor wiring device according to claim 6,
The first passive element includes a first winding, the second passive element includes a second winding, the third passive element includes a third winding, and the fourth passive element includes a first winding. The motor wiring device including four windings, the fifth passive element including a fifth winding, and the sixth passive element including a sixth winding. The motor wiring device according to claim 6,
The m first electrical connectors include a first first electrical connector, a second first electrical connector, and a third first electrical connector,
The n second electrical connectors include a first second electrical connector, a second second electrical connector, and a third second electrical connector,
The motor wiring device further includes:
A first switch including a first end connected to a first stator connector of an electric motor and a second end connected to the first first electrical connector or the first second electrical connector;
A second switch including a first end connected to a second stator connector of the motor and a second end connected to the second first electrical connector or the second second electrical connector; and a first switch of the motor A motor wiring device including a third switch including a first end connected to a three-stator connector and a second end connected to the third first electrical connector or the third second electrical connector. The motor wiring device according to claim 8,
When the rotation speed of the electric motor is smaller than a threshold value, the second end of the first switch is connected to the first first electrical connector, and the second end of the second switch is the second first electrical connector. And the second end of the third switch is connected to the third first electrical connector, whereby the first stator connector, the second stator connector of the motor, and the second An electric motor wiring device for causing a three-stator connector to be electrically connected to the first circuit. The motor wiring device according to claim 8,
When the rotational speed of the electric motor is greater than a threshold value, the second end of the first switch is connected to the first second electrical connector, and the second end of the second switch is the second first electrical connector. And the second end of the third switch is connected to the third first electrical connector, whereby the first electrical connector, the second electrical connector, and the third electrical connector of the electric motor. An electric motor wiring device for causing a connector to be electrically connected to the second circuit.

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