JPH087288Y2 - Reactor mounting structure in an air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to improvement of a reactor mounting structure in an air conditioner.

(Prior Art) In an air conditioner that employs an inverter system, the compressor is rotation-controlled by an AC-DC converted voltage by an inverter, and efficient air conditioning is performed. The reactor connected to the power source has the role of improving the power factor by absorbing the reactive power and increasing the conversion efficiency of the AC-DC conversion circuit connected to the preceding stage of the inverter.

The mounting structure of the reactor in the conventional air conditioner is
It is constructed as shown in FIG. 5 and FIG.

That is, in FIG. 5 and FIG. 6, a compressor 2, an inverter 3, a heat exchanger 4 are provided in the cabinet 1 of the outdoor unit.
Also, a blower 5 for sending air to the heat exchanger 4 is arranged and arranged, and a partition plate 6 for partitioning the compressor 2 side and the heat exchanger 4 side is provided. The reactor 7 is connected between the commercial AC power supply and the AC-DC conversion circuit formed in the preceding stage of the inverter 3, and since the reactor 7 itself has some resistance, the temperature rise due to the passing power is unavoidable. It is housed in an enclosure 6a formed in the partition plate 6 and attached to the bottom of the cabinet 1 so as not to adversely affect the components such as the compressor 2.

Further, a control board 8 having a relay terminal is provided adjacent to the inverter 3, and the control board 8 includes various wirings such as wiring to the commercial AC power supply, power supply between each component, and control. The lead wire 9 is connected and relayed. In assembly work of the outdoor unit, these lead wires 9 are wired in the cabinet 1 by a so-called bundled wire system.

Therefore, the input / output AC power supply lead wire (primary side) 9a connected to the reactor 7 is also bundled and wired together with the secondary side power supply and various control lead wires 9b after AC-DC conversion. .

By the way, when an air conditioner has a failure or the like and the reactor 7 is to be removed and replaced, the partition plate 6 must first be removed, which requires a large amount of work and is troublesome for maintenance and inspection.

Further, in the assembly work, since the constituent parts are wired as a common bundling line, the primary side of the reactor 7 (AC)
Since the lead wire 9a and the other lead wire 9b on the secondary side (DC) are bundled together in common, the noise on the secondary side caused by the AC-DC conversion is not only on the primary side but also on the bundled wire. It has been demanded to improve the function of the nuclear component by superimposing it on other control lead wires and the like constituting the.

(Problems to be Solved by the Invention) In a conventional reactor mounting structure in an air conditioner, the reactor is arranged and mounted so as to be surrounded by a partition plate, and AC input / output lead wires connected to this reactor are Since it was bundled together with the secondary side lead wire and wired, there was a drawback that unnecessary noise was superposed.

An object of the present invention is to solve the above-mentioned drawbacks and to provide a reactor mounting structure in an air conditioner which is easy to assemble and dismount with a simple structure and which is less likely to pick up unnecessary noise.

[Means for Solving the Problem] (Means for Solving the Problem) This invention is a structure for mounting a reactor in an inverter type air conditioner, in which the inside of the cabinet of the outdoor unit is connected to the outdoor heat exchanger section side and the compressor section side. Between the partition plate that is provided with a lead wire locking portion that is opened at the partition and at the end, a reactor that is attached to the bottom of the cabinet on the outdoor heat exchanger side, and a component housed in the cabinet. A relay terminal plate that relays a lead wire that is electrically connected, a lead wire that connects the relay terminal plate and the reactor is connected via a lead wire locking portion of the partition plate, It is characterized in that it is configured to be connected by wiring so as to intersect with other lead wires connected to the relay terminal board.

(Operation) In the reactor mounting structure according to the present invention, the reactor is separated from the partition plate and is provided on the heat exchanger section side sandwiching the partition plate, so that the assembly and the removal can be performed independently. Further, since the lead wire connected to the reactor is also wired by being locked by the locking portion provided at the end of the partition plate, the work at the time of assembly manufacturing and maintenance is facilitated. .

Further, the lead wire connected to this reactor is bundled separately from the other lead wires, and is wired so as to intersect with the bundle of the other lead wires and loosely couple with each other. It is less likely to pick up noise caused by.

(Embodiment) An embodiment of a reactor mounting structure in an air conditioner according to the present invention will be described in detail below with reference to FIGS. 1 and 4. The same components as those of the related art are denoted by the same reference numerals, and detailed description thereof will be omitted.

That is, as shown in FIG. 1 and FIG. 2, a compressor 2, an inverter 3, a heat exchanger 4 and a blower 5 for sending air to the heat exchanger 4 are arranged in the cabinet 1 of the outdoor unit. The compressor 2 side and the heat exchanger 4 side are plate-shaped partition plates 6
It is divided by.

The reactor 7 is attached to the heat exchanger 4 side of the cabinet 1 partitioned by the partition plate 6.

At the end of the partition plate 6, a lead wire locking portion 6b that opens to the outside is provided as shown in an enlarged view in FIG. 3, and the lead wires 9a for input and output of the reactor 7 are bundled together. It is connected to the control board 8 having a relay terminal through the engagement with the engagement portion 6b.

On the control board 8, lead wires 9b for feeding and controlling other components such as the blower 5 and the four-way valve other than the reactor 7 are separately bundled and wired.

In addition to the relay terminals, control components such as various microcomputers and ICs are mounted on the control board 8 to control the output frequency of the inverter, the blower 5, the four-way valve and the like.

As is clear from FIG. 4, the lead wire 9a and the other lead wire 9b are wired so as to intersect with each other, and as a result, the degree of capacitive coupling between the two is extremely small, and it is assumed that the other lead wire 9b is
Even if a noise signal on the secondary side is generated, it is avoided that the noise signal is coupled to and superimposed on the primary side lead wire 9a of the reactor 7.

Since the reactor mounting structure according to the present invention is configured as described above and the reactor 7 is provided on the heat exchanger 4 side separately from the partition plate 6, it is possible to perform the assembling and dismounting independently. . Further, since the lead wire 9a connected to the reactor 7 is also wired by being locked by the locking portion 6b provided at the end of the partition plate 6 and opened, the assembly and removal work is improved and facilitated. It was

Further, the lead wire 9a connected to the reactor 7 is bundled separately from the other lead wire 9b, and the other lead wire 9b.
Since the bundle of wires is wired so as to intersect with each other and become loosely coupled, it is less likely to pick up noise generated from the other lead wires 9b, less likely to adversely affect the operation control of the air conditioner, and stable and It has become possible to efficiently operate the refrigeration cycle continuously. Although the relay terminal is attached to the control board 8 in the above embodiment, the relay terminal may be separately provided separately from the control board 8.

[Advantage of the Invention] The reactor mounting structure in the air conditioner according to the present invention has a simple structure, which facilitates the assembling and dismounting, reduces the noise from the secondary side, and ensures a stable air conditioning function. In particular, it can be applied to a home air conditioner or the like to obtain a great effect.

[Brief description of drawings]

FIG. 1 is a transverse sectional view showing an embodiment of a reactor mounting structure in an air conditioner according to the present invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is a partition shown in FIG. FIG. 4 is a partially enlarged perspective view of a plate, FIG. 4 is an enlarged front view of the relay terminal plate shown in FIG. 2, FIG. 5 is a cross-sectional view showing a reactor mounting structure in a conventional air conditioner, and FIG. B in Figure 5
It is a -B line sectional view. 1 ... Cabinet, 2 ... Compressor, 3 ... Inverter, 4 ...
Heat exchanger, 5 ... Blower, 6 ... Partition plate, 6a ... Enclosure, 7
... Reactor, 8 ... Control board, 9a ... Lead wire, 9b ... Other lead wire.

Claims (1)

[Scope of utility model registration request] 1. In a mounting structure of a reactor in an inverter type air conditioner, the inside of a cabinet of an outdoor unit is divided into an outdoor heat exchanger section side and a compressor section side and is opened at an end portion to lead wire engaging section. A partition plate, a reactor attached to the bottom of the cabinet on the side of the outdoor heat exchanger, and a relay terminal plate for relaying lead wires for electrically connecting the components housed in the cabinet. And a lead wire connecting the relay terminal plate and the reactor is connected via a lead wire locking portion of the partition plate, and is not connected to another lead wire connected to the relay terminal plate. A structure for mounting a reactor in an air conditioner, characterized in that the structure is configured to intersect and be connected by wiring.