JPS5885376A - Refrigerant circulator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a refrigerant circulation machine that uses an electric motor mounted on a hermetic gas compressor to drive a refrigerant liquid pump. is a refrigerant compressor (1), a four-way valve (2), an indoor heat exchanger (3), and a pressure reduction mechanism for cooling.
(4), Heating pressure reduction mechanism (5), Outdoor heat exchanger (6)
are sequentially connected in a ring to form a refrigerant circuit, one end is connected to the liquid line between the cooling pressure reducing mechanism (4) and the heating pressure reducing mechanism (5), and the other end is connected to the compressor (1) and the four-way valve ( 2) is provided with a bypass pipe (7) connected to the discharge gas line between the
The circuit has a circuit configuration in which a refrigerant circulating liquid pump (8) and a heating element +9) are installed in the bypass pipe (7) of The exchanger (6) dissipates heat at °C and condenses it into a °C liquid refrigerant. A part of this liquid refrigerant is discharged at high temperature from the compressor (1) by the action of the refrigerant circulation pump (8). The state of the refrigerant mixed with gas and flowing into the outdoor O exchanger (6) is set to a two-phase region with a high heat transfer coefficient.
6) Increases heat exchange efficiency. - During heating operation, the high-temperature, high-pressure discharged refrigerant gas compressed by the compressor (1) is radiated to the indoor heat exchanger (3) to condense and liquefy, and then part of this liquid refrigerant is circulated as a refrigerant. By the action of the liquid pump (8), the refrigerant is mixed with the high-temperature discharge gas discharged from the compressor (1), and the refrigerant flowing into the indoor heat exchanger (3) is made into a two-phase region with a high heat transfer coefficient. The heat exchange efficiency in the heat exchanger (3) is increased. In addition, when the outside temperature decreases and the amount of heat absorbed by the outdoor heat exchanger (6) decreases, the heating element (9)
) by adding heat input to the indoor heat exchanger (3)
The amount of heat dissipated can be increased.

As mentioned above, by incorporating the compressor and refrigerant circulating fluid pump into the refrigerant circuit, it is possible to increase the heat exchange efficiency on the condensing side and increase the heating capacity during cooling and heating operations. A motor and a motor for the refrigerant circulating fluid pump are required.

Therefore, in the present invention, a driving magnet is attached to one end of the compressor motor shaft housed in a sealed container, and a driven magnet is attached to the pump shaft housed in another sealed container, facing the driving magnet. A magnet was attached, and the rotation of the compressor motor was transmitted through the magnet to drive the refrigerant circulation pump.

An example of the implementation of the present invention will be explained below based on FIG. 2. C
1O is a motor stator, which is press-fitted and fixed into the airtight container α of the compressor. @ is the rotor and shaft (2)
It is fixed to the [motor shaft] by shrink fit. α◆ is a piston fitted onto the large diameter portion (18a) at one end of the shaft (Ll), and is located in a compression space formed by the cylinder (to), the upper bearing a9, and the lower bearing (b). ( (to) is a vane, (2) is a 6-suction pipe communicating with the compression space, and (2) is a discharge pipe provided in the closed container (2).

A is a driving magnet provided at the other end of the shaft (to), and is coupled to the °C shaft (2) via a yoke plate. 4 is a support leg fixed to the bottom outer wall of the closed container (B), and (C) is a vibration-proof rubber.Next, the closed container (2) of the refrigerant circulating liquid pump has an upper shell (25a),
It consists of a lower shell (25b). (E) is the supporting plate which is sandwiched by both shells (26 凰) (25b) under the t and is fixed to the ゛C. He is being watched closely by the board members. These upper shell (26a) and lower shell (26
b).

The support plate (e) is welded to C@. (to) is an upper bearing, which is provided with a suction hole (not shown). 4 is a cylinder, and - is a lower bearing, which is provided with a discharge hole (not shown). These upper bearing member, cylinder @, and lower bearing member are inserted into the mechanical box 4. The sixth hole is a hole having a plurality of grooves (not shown), and the upper bearing
, cylinder, located in the pump chamber space formed by the lower bearing (7). (2) is a vane. (to) is a shaft (pump shaft) that transmits rotation to the rotor 011. (B) is a driven magnet provided opposite to the driving magnet (2), and is a yoke plate (2).
) is attached to the shaft (to). (to) is an end bearing, (2) is provided on the upper shell (25a),
N is a suction pipe, and (to) is a discharge pipe provided in the lower shell (25b). (to) is a fixed flange fixed to the lower shell (25b), and the airtight container (2) of the refrigerant circulation pump is connected to the compressor airtight container (b) through this flange (to).
Be fixed on top.

In the above configuration, when the C motor stator 4 is energized, the rotor (2) rotates, the rotational force is transmitted to the shaft (2) that fixes the rotor (2), and the piston (B) also rotates. As a result, the refrigerant gas is guided into the compression space from the suction pipe α, and the refrigerant gas is compressed by the action of the piston Q4 and the vane, and after being discharged into the closed container A, it flows out from the discharge pipe ■. C is going. On the other hand, the shaft a
As the groove rotates, the compression action begins, and at the same time, the driving magnet fixed to the other end of the shaft rotates. As a result, the driven magnet housed in the closed container (2) of the refrigerant circulating fluid pump rotates. Therefore, the shaft O1 and the rotor 901 rotate, and this rotor (ro)
A pump action is generated by the action of the vane (2) and the vane (2).
Liquid refrigerant is sucked into the pump chamber through the suction pipe (b) and then flows through the discharge pipe (
(to).

As explained above, in the present invention, a driving magnet is fixedly attached to the motor shaft of a hermetic compressor, and a driven magnet is positioned so as to face the driving magnet in a sealed container housing a refrigerant circulating fluid pump. By letting
The compressor motor can drive the refrigerant circulation pump together with the compressor. Therefore, there is no need for a separate drive motor for the refrigerant circulating fluid pump, and the power required for the refrigerant circulating fluid pump is approximately 40 W and torque of approximately 1.5 cmKB.
This makes it possible to unify the motors for the compressor without increasing the size of the motor. In addition, by mounting the refrigerant circulating fluid pump on top of the compressor, for example, a separate drive motor is not required, and since it is compact and structured, the installation space is greatly reduced, and vibration-proofing measures and Soundproofing measures can also be centralized and production costs can be reduced.

Furthermore, by making the refrigerant compressor and the refrigerant circulating fluid pump independent structures each consisting of an independent sealed container, and using a rotation transmission mechanism using a 7-gear coupling, it is possible to optimally design the compressor mechanism and pump mechanism, respectively. It has the advantage of being able to

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of a heating and cooling device, and FIG. 2 is a sectional view showing an example of the implementation of the present invention. (b)... airtight container, CLl... shaft, (1
4... Piston. (2)...Cylinder, (To)...Vane, (To)
...Suction pipe 2go...Discharge pipe, (2)...Driving magnet, @...Yoke plate, 4...Airtight container, @...
... Mechabox, @... Schilling. ta-ka...! Loaf, Ni)... Vane, OI... Shaft, Foundation... Driven magnet, @... Suction pipe, C11... Discharge pipe Agent - Yoshihiro Morimoto

Claims (1)

[Claims] 1. Attach a driving magnet to one end of the compressor motor shaft housed in an airtight container, and attach a driven magnet to the other end of the pump shaft housed in an airtight container, facing the driving magnet. Installed refrigerant circulation machine.