JPH0419380Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a reactor protection device for an air conditioner.

Conventional technology Conventionally, in air conditioners equipped with a reactor for power factor improvement, in order to insulate from rainwater entering from the outer box or condensed water collected from the pipes,
In addition, various efforts have been made to prevent the temperature from rising due to the heat generated by the reactor itself.

An example of the conventional air conditioner mentioned above will be described below with reference to the drawings.

Figure 6 shows the mounting structure of a conventional reactor cover, which is used to insulate from rainwater that enters from the outer box or condensed water that comes down from the pipes, and also because the reactor 9 itself becomes hot due to heat generation, causing ignition due to intrusion of dust, etc. In order to prevent this, a reactor cover 2 was provided to protect the reactor 9. Further, as the mounting position of the reactor 9, the fifth
As shown in the figure, it was attached to the circuit board around the compressor 3 of the outdoor unit.

Problems to be solved by the invention However, in the configuration shown in FIG.
As a result, the ambient temperature of the reactor 9 rises, and the temperature of the reactor 9 itself also rises, resulting in burnout of the coil and a rapid reduction in the lifespan of the coil. In addition, in order to prevent the above-mentioned drawbacks, it is necessary to increase the capacity of the reactor 9, which also has the disadvantage of increasing the cost of the reactor 9 and increasing the storage capacity.

Furthermore, as shown in FIG. 7, even when the ventilation passage 11 is provided in the substrate 10, the ventilation is poor due to the natural convection of the wind, and heat accumulates in the upper part (B section) of the reactor 9. In order to cool it, it is necessary to increase the dimension t, which also has the disadvantage that the reactor cover 2 becomes large.

In view of the above-mentioned problems, the present invention aims to prevent temperature rise in the reactor of an air conditioner, select an optimal reactor, and protect the reactor from rainwater and the like.

Means for Solving the Problems In order to solve the above problems, the present invention provides a first intake port for introducing air into one end of the reactor cover by a punched hole, and the first intake port is provided inside the intake port. It has a double structure in which a second intake port is provided with a punched hole diameter smaller than that of the intake hole punched hole diameter, and the first intake port faces the ventilation path of the outdoor fan.

Effects With the above-described configuration, the present invention can cool the heat generated in the reactor by ventilation, and can also protect it from rainwater, etc., and can reduce the cost of the reactor.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 4 of the accompanying drawings.

Figures 1 and 2 are a front view and a top view of an outdoor unit of a separate air conditioner, which includes an outer box 1, a reactor cover 2, a compressor 3, a heat exchanger 4, a sound insulating plate 5, etc. . As shown in the figure, one end of the reactor cover 2 of the present invention passes through a hole (not shown) made in the sound insulating plate 5 and exits to the ventilation path side of the outdoor fan 7.

FIG. 3 is a perspective view of the main parts of the reactor cover 2 viewed from the heat exchanger 4 side.

As shown in the figure, a first intake port 12 is provided in a punched hole at one end of the reactor cover 2 (on the heat exchanger 4 side).

FIG. 4 is a perspective view of main parts showing the internal structure of the reactor cover 2. FIG.

As shown in the figure, a second intake port 13 is attached inside the first intake port 12 described in FIG. 3. The second air intake port 13 is provided with a punched hole 13a similarly to the air intake port 12. However, the punching hole diameter d ₂ of the second intake port 13 is the same as that of the first intake port 12.
The punching hole diameter d is smaller than ₁ .

According to this configuration, since the first intake port 12 of the reactor cover 2 faces the ventilation path side of the outdoor fan 7, the air inside the reactor cover 2 that has risen due to the heat generated by the reactor 9 is passed through the intake port 12. In addition to exhausting the air to the ventilation path side of the outdoor fan, the reactor 9 is constantly cooled by the ventilation, and a rise in temperature of the reactor 9 can be prevented. Furthermore, a second intake port 13 is attached to the inside of the reactor cover 2, and the punched hole diameter _d2 of the second intake port 13 is smaller than the punched hole diameter _d1 of the first intake port 12, so that it can be used indoors. Even if rainwater etc. blown by the fan enters through the first intake port 12, the second
The water will not hit the air intake port 13 of the reactor 9 and splash into the reactor 9. This effect becomes greater as the punched hole diameter d ₂ of the second intake port 13 is made smaller.
In addition, compared to the conventional natural convection caused by introducing outside air as shown in Fig. 7, the air is forced to circulate by the air blowing from the outdoor fan 7, so the cooling effect is greater, and the t-dimensional space required for cooling also does not need to be increased. Without,
As a result, the reactor cover 2 and the reactor 9 can be made smaller.

Therefore, the first air intake port 12 for introducing air into one end of the reactor cover 2 is provided as a punched hole, and the diameter of the punched hole of the first air intake port 12 is larger than the diameter of the punched hole on the inside of the first air intake port 12. The second air intake port 13 is provided with a small punched hole to create a double structure, and the first air intake port faces the ventilation path of the outdoor fan, so that the air introduced by the reactor 9 is forced to cool the air. This can prevent temperature rise. As a result, burnout of the coil of the reactor 9, reduction in coil life, increase in design capacity, and accompanying cost increase can be prevented.
Additionally, the air intake has a double structure, which prevents rainwater from entering.

Effects of the invention As described above, the reactor protection device of this invention has the following advantages:
A first intake port for introducing air is provided as a punched hole at one end of a reactor cover that protects the reactor, and a punched hole diameter smaller than the diameter of the first intake port punched hole is provided inside the first intake port. Since the second air intake port is provided in the double structure and the first air intake port faces the ventilation path of the outdoor fan, the air inside the reactor cover is forced to circulate by the air blown by the outdoor fan. As a result, the reactor is cooled and a rise in temperature of the reactor can be prevented.

As a result, it is possible to prevent coil burnout, decrease in coil life, increase in reactor design capacity, and accompanying cost increase due to rise in temperature of the reactor. Furthermore, since the intake port has a double structure, it has various advantages such as being able to prevent rainwater from entering.

[Brief explanation of drawings]

Fig. 1 is a front view of an outdoor unit of a separate type air conditioner according to an embodiment of the present invention, Fig. 2 is a top view of the outdoor unit, and Fig. 3 is a perspective view of essential parts of a reactor cover in the outdoor unit. Fourth
The figure is a perspective view of the main parts showing the container structure of the reactor cover, Figure 5 is a top view of the conventional outdoor unit, Figure 6 is an explanatory diagram showing the mounting structure of the conventional reactor cover, and Figure 7 is the conventional It is a sectional view of a reactor cover. 1... Outer box, 2... Reactor cover, 5...
Sound insulation board, 9...Reactor.

Claims (1)

[Scope of utility model registration request] A first intake port for introducing air is provided at one end of the reactor cover that protects the reactor by a punched hole, and the first intake port is provided inside the first intake port.
A reactor protection device for an air conditioner, comprising: a second intake port having a punched hole diameter smaller than the punched hole diameter of the intake port; and further, the first intake port faces the ventilation path of an outdoor fan.