JPH11204363A - Connector device of capacitor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the cost by reducing the number of connection lead wires of an aluminum electrolytic capacitor used for an outdoor inverter unit of an inverter-driven air conditioner, and secure an insulation spacing between capacitors and between the capacitor and a charging part of another component. SOLUTION: This device has a plurality of aluminum electrolytic capacitors 1-3 having contact terminals 1a, 2a and 3a, and a connector 10 which has connector terminals 14 on one side for receiving the contact terminals and external connection terminals 13 on the other side and is internally connected between the connector terminals 14 and between the connector terminal 14 and the external connection terminal 13 according to a predetermined relation. The connector 10 has capacitor mounting holes 16 formed for individually mounting the capacitors and for electrically isolating the adjacent capacitors.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector device for an aluminum electrolytic capacitor used in an outdoor inverter of an inverter type air conditioner.

[0002]

2. Description of the Related Art A single-phase 100 V inverter type air conditioner generally converts a 100 V AC power supply into a DC power and drives a compressor by a switching element such as a power transistor. The circuit configuration will be described with reference to FIG.
Reference numeral 7 denotes a 100 V commercial power supply, which supplies power to the diode bridge 4. Reference numerals 1 to 3 denote aluminum electrolytic capacitors which together with the diode bridge 4 constitute a voltage doubler rectifier circuit.
The DC power generated by the aluminum electrolytic capacitors 1 to 3 supplies a current to a compressor driving power module 5 formed by switching elements, and the current is finally supplied to the compressor 6.

Here, since the aluminum electrolytic capacitors 1 to 3 are large in size, they are generally mounted externally by external wiring instead of directly mounted on the control wiring board 8 as shown in FIG. . Reference numeral 9 denotes a connection lead wire, and a total of six lead wires are used for connection between the terminals of the aluminum electrolytic capacitors 1 to 3 and for connection between the capacitor terminals and the control wiring board 8.

[0004]

The problems in this conventional example are as follows: (1) A plurality of lead wires 9 are required to connect the aluminum electrolytic capacitors 1 to 3 to the control wiring board 8.
Therefore, the material cost of the lead wire 9 and the operation cost at the time of connection are large. (2) Since the aluminum electrolytic capacitors 1 to 3 are large in size, the capacitors are structurally mounted in order to secure an insulation distance between the capacitors and to secure safety when the explosion valves of the aluminum electrolytic capacitors 1 to 3 are opened. The point is that the space of the part becomes large.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a connector device for a capacitor which can eliminate the need for connecting a lead wire to a capacitor terminal and secure an insulation distance between the capacitors. Things.

[0006] In addition, the insulation distance between each aluminum electrolytic capacitor jacket and the charged part of another component is secured, or the insulation distance between each aluminum electrolytic capacitor jacket is secured, and when the explosion valve of the aluminum electrolytic capacitor is opened. It is an object of the present invention to provide a connector device for a capacitor which also ensures the safety of the capacitor.

[0007]

According to a first aspect of the present invention, there is provided a connector apparatus for a capacitor, comprising: a plurality of capacitors having contact terminals; and the contact terminals on one surface. A connector having a connector terminal and an external connection terminal on the other surface, respectively, and including a connector internally connected in a predetermined relationship between the connector terminals and between the connector terminal and the external connection terminal; It has a capacitor mounting portion formed so that capacitors are individually mounted and adjacent capacitors are electrically separated from each other.

[0008] According to the above configuration, since the plurality of capacitors are connected inside the connector, the connection by the conventional lead wire is unnecessary. Therefore, the material cost of the lead wire and the connection work cost can be reduced. Further, since the capacitors are mounted on the capacitor mounting portion so as to be electrically separated from each other, an insulation distance between the capacitors can be secured.

According to a second aspect of the present invention, there is provided a connector device for a capacitor, wherein the capacitor mounting portion according to the first aspect is formed of a cylindrical body which is provided upright from the connector and has no top plate. It is.

According to this configuration, not only the insulation distance between the capacitors but also the insulation distance between the capacitor and the charged part of another component can be ensured.

According to a third aspect of the present invention, there is provided a connector device for a capacitor, wherein the capacitor mounting portion according to the first aspect is erected from the connector, and has a substantially U-shaped cross section with one side surface and a top surface opened. It is characterized by comprising a mold partition wall. Therefore, the material cost of the partition wall is reduced as compared with the configuration of the second aspect, and the workability of mounting the capacitor is also improved.

According to a fourth aspect of the present invention, there is provided a connector device for a capacitor, wherein the capacitor mounting portion according to the first aspect is erected from the connector, has a circular top plate, and has one side opened. It is characterized in that the cross section is formed of a substantially U-shaped partition wall. According to this configuration, the safety at the time of opening the explosion valve of the electrolytic capacitor can be secured as compared with the configuration of the third aspect.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings.

(Embodiment 1) FIG. 1 shows a connector device for a capacitor according to Embodiment 1 of the present invention. Reference numerals 1 to 3 denote aluminum electrolytic capacitors, each having a male insertion terminal. It has contact terminals 1a, 2a, 3a. These aluminum electrolytic capacitors 1 to 3 are shown in FIG.
Is applied to the inverter device of the air conditioner, and is connected to the output side of the diode bridge 4 to convert AC power into DC in the outdoor unit main body of the air conditioner for driving an inverter. A doubler voltage circuit is also formed to supply electric power to the compressor driving power module 5.

Reference numeral 10 denotes a resin connector made of a rectangular shape, for example, a rectangular parallelepiped, and a connector terminal which is a female-type contact terminal into which the contact terminals 1a, 2a, 3a of the aluminum electrolytic capacitors 1 to 3 are inserted on one side surface. 14 are provided for the number of terminals of the capacitor. Further, three male external connection terminals 13 are provided on the surface of the connector 10 opposite to the surface having the connector terminals 14. Reference numeral 16 denotes a mounting hole into which a part of the main body including the individual contact terminals of the aluminum electrolytic capacitors 1 to 3 is inserted.

FIG. 2 shows the internal structure of the connector 10. A connector terminal 14 for receiving the contact terminals 1a, 2a and 3a of the aluminum electrolytic capacitors 1 to 3 is arranged at the bottom of the mounting hole 16. From the connector terminal 14, the integrally formed internal wiring 11 extends, and the external connection terminal 1
It is connected to 3. The wiring between the connector terminals 14 and the wiring between the connector terminals 14 and the external connection terminals 13 are connected as shown in FIG. The internal wiring 11 forms a voltage doubler circuit shown in FIG.

FIG. 4 shows the connector 10 and the control wiring board 8.
FIG. That is, the lead wire 12 connects between the external connection terminal 13 of the connector 10 on which the aluminum electrolytic capacitors 1 to 3 are mounted and the terminal 15 of the control wiring board 8.

According to the first embodiment configured as described above, the voltage doubler circuit is formed by the internal wiring 11 in the connector 10, and therefore, the lead wire connecting between the aluminum electrolytic capacitors 1 to 3 becomes unnecessary. Therefore, material costs and wiring work costs are reduced accordingly. Also,
Since the aluminum electrolytic capacitors 1 to 3 have a part of the main body including the contact terminal portion inserted into the mounting hole 16, the inclination of each of the aluminum electrolytic capacitors 1 to 3 is restricted.
The connecting portions between the contact terminals 1a, 2a, 3a and the connector terminal 14 which are adjacent to each other can be provided with a distance by the side wall of the mounting hole 16, and an insulation distance can be secured.

(Embodiment 2) FIG. 5 shows a connector device for a capacitor according to Embodiment 2 of the present invention. Reference numeral 17 denotes a capacitor formed simultaneously with the connector 10 and aluminum electrolytic capacitors 1 to 3 are mounted. This is the capacitor mounting part.
The capacitor mounting portion 17 is formed of a cylindrical body having no top plate, and has a cylindrical inner diameter of one of aluminum electrolytic capacitors 1 to 3.
Is set to the size that can be inserted.

According to the second embodiment constructed as described above, the side surfaces of the mounted aluminum electrolytic capacitors 1 to 3 are covered with the resin cylindrical body. 3 can be sufficiently ensured between the charged part of the other component.

(Embodiment 3) FIG. 6 shows a connector device for a capacitor according to Embodiment 3 of the present invention. Reference numeral 18 denotes a capacitor molded simultaneously with the connector 10 and aluminum electrolytic capacitors 1 to 3 are mounted. This is the capacitor mounting part.
The capacitor mounting portion 18 is formed of a partition wall having an opening on one side surface and a top surface and having a substantially U-shaped cross section.
The inside diameter of the character is set to a size in which the main bodies of the aluminum electrolytic capacitors 1 to 3 can be inserted.

According to the third embodiment configured as described above, the adjacent capacitors are separated by the resin partition wall, so that the insulation distance between the capacitors is sufficiently ensured, and the capacitors other than the side opening are provided. In this section, a sufficient insulation distance between the aluminum electrolytic capacitors 1 to 3 and the charged part of another component can be ensured. As compared with the second embodiment, there is an advantage that the material cost of the partition wall is reduced and the workability of mounting the capacitor is also improved.

(Embodiment 4) FIG. 7 shows a connector device for a capacitor according to Embodiment 4 of the present invention. Reference numeral 19 denotes a capacitor that is molded simultaneously with the connector 10 and mounts aluminum electrolytic capacitors 1 to 3. This is the capacitor mounting part.
The capacitor mounting portion 19 has a circular top plate and is formed of a partition wall having a substantially U-shaped cross section with one side open, and the inner diameter of the substantially U-shaped is formed of aluminum electrolytic capacitors 1 to 3.
Is set to the size that can be inserted.

According to the fourth embodiment configured as described above, the same effects as those of the third embodiment can be obtained. In addition, since the top plate is provided, the explosion valve above the aluminum electrolytic capacitor is opened. Even if the state is reached and the electrolyte is discharged, the possibility of affecting other components is low, and high safety can be ensured.

[0025]

As described above, according to the present invention,
The internal connection of the connector eliminates the need for a lead wire for connecting the capacitors, thereby reducing the material cost and the wiring work cost. In addition, since each capacitor is mounted on a capacitor mounting portion configured to be electrically separated from each other, an insulation distance between the capacitors can be secured.

Further, the capacitor mounting portion is erected from the connector and is constituted by a cylindrical body or a partition wall having a substantially U-shaped cross section with one side opened, so that the insulation distance between the capacitors and the capacitor are not limited. It is also possible to ensure a sufficient insulation distance from the charged part of another component.

Furthermore, since the partition wall having a substantially U-shaped cross section having one open side has a top plate, safety at the time of opening the explosion valve of the condenser can be secured.

[Brief description of the drawings]

FIG. 1 is a perspective view of a connector device for a capacitor according to a first embodiment of the present invention.

FIG. 2 is a sectional view according to Embodiment 1 of the present invention.

FIG. 3 is an internal wiring diagram of the connector according to the first embodiment of the present invention.

FIG. 4 is a perspective view showing the connection between the connector and the control wiring board according to the first embodiment of the present invention.

FIG. 5 is a perspective view of a connector device for a capacitor according to a second embodiment of the present invention.

FIG. 6 is a perspective view of a connector device for a capacitor according to a third embodiment of the present invention.

FIG. 7 is a perspective view of a connector device for a capacitor according to a fourth embodiment of the present invention.

FIG. 8 is a circuit diagram of a power section of the inverter type air conditioner.

FIG. 9 is a perspective view showing a connection between a conventional capacitor and a control wiring board.

[Explanation of symbols]

 1, 2, 3 Aluminum electrolytic capacitor 1a, 2a, 3a Contact terminal 10 Connector 11 Internal wiring 13 External connection terminal 14 Connector terminal 16 Mounting hole 17, 18, 19 Capacitor mounting part

Claims (4)

[Claims] A plurality of capacitors having contact terminals;
A connector having a connector terminal for receiving the contact terminal on one surface and an external connection terminal on the other surface, and internally connected in a predetermined relationship between the connector terminals and between the connector terminal and the external connection terminal; Wherein the connector has a capacitor mounting portion formed so that each of the capacitors is mounted individually and adjacent capacitors are electrically separated from each other. 2. The capacitor connector device according to claim 1, wherein the capacitor mounting portion is provided upright from the connector and is formed of a cylindrical body having no top plate. 3. The capacitor connector according to claim 1, wherein the capacitor mounting portion is provided upright from the connector, and is formed of a partition wall having a substantially U-shaped cross section, with one side surface and a top surface opened. apparatus. 4. The capacitor mounting part is provided upright from the connector, has a circular top plate, and has a substantially U-shaped cross section with one side surface opened. A connector device for the capacitor as described.