TW201837313A - Compressor including an operating coil unit, a starting coil unit and a switching unit, and having a better energy saving effect - Google Patents

Abstract

A compressor is suitable for being electrically connected with an alternating-current power source and includes an operating coil unit, a starting coil unit and a switching unit. One of the operating coil unit and the starting coil unit is connected in series with the switching unit, and the other of the operating coil unit and the starting coil unit is connected in parallel to the alternating-current power source. When being connected in series with the switching unit, the operating coil unit includes a plurality of operating coils; and when being connected in series with the switching unit, the starting coil unit includes a plurality of starting coils. The switching unit is controllably switchable, such that the numbers of turns of the operating coils and the starting coils, forming a loop via the switching unit and the alternating-current power source, connected in series in the operating coil unit and the starting coil unit are different, and further powers consumed by the compressor are different.

Description

compressor

The present invention relates to a compressor, and more particularly to a compressor for an air conditioning unit.

In recent years, air-conditioners have adopted variable frequency design to achieve energy-saving effects. A variable frequency air conditioner includes a power conversion module and a compressor. The power conversion module is configured to convert a single-phase AC power source in a general household into a three-phase AC power source, and accordingly drive the compressor to operate. Moreover, the power conversion module can change the frequency of the three-phase AC power supply according to different power requirements to adjust the speed of the compressor. That is to say, the compressor of the inverter type air conditioner is operated at different rotation speeds according to the magnitude of the required power, thereby achieving the effect of energy saving. However, the power conversion module includes a plurality of power components (such as a diode and a semiconductor switch), so that the manufacturing cost of the inverter air conditioner is relatively higher than that of the non-converter air conditioner. Therefore, how to make the air conditioner using the single-phase power supply have better energy-saving effect and has a lower manufacturing cost than the inverter air conditioner has become a problem to be solved.

Accordingly, it is an object of the present invention to provide a compressor which can provide an air conditioner with better energy saving effects.

Therefore, the compressor of the present invention is suitable for electrically connecting an AC power source having a first end and a second end, and includes a running coil unit, a starting coil unit, and a switching unit. One of the running coil unit and the starting coil unit is connected in series with the switching unit, and the other of the operating coil unit and the starting coil unit is connected to the first end of the AC power source and the first Between the two ends. When the operating coil unit is connected in series with the switching unit, the operating coil unit includes a plurality of operating coils, and when the starting coil unit is connected in series with the switching unit, the starting coil unit includes a plurality of starting coils. The switch unit is controllably switchable such that the one of the running coil unit and the starting coil unit is different from the number of turns of the running coils or the starting coils that form the circuit via the switching unit The compressor consumes different amounts of power.

In some implementations, the compressor can be controlled to operate in a first power consumption mode or a second power consumption mode. The running coil unit includes a first running coil group and a second running coil group, the first running coil group includes at least one running coil, the second running coil group includes at least one running coil, and the first running coil The at least one running coil included in the coil group and the at least one running coil included in the second running coil group are different from each other. When the compressor is operated in the first power consumption mode, the switch unit is controlled to switch such that the first running coil group forms a loop with the alternating current power source via the switch unit. When the compressor is operated in the second power consumption mode, the switch unit is controlled to switch such that the second running coil group forms a loop with the alternating current power source via the switch unit.

In some implementations, the switch unit includes a first end, a second end, and a third end, and is controllably switchable such that the first end and the second end form an electrical connection, or The first end and the third end form an electrical connection. The first running coil group is electrically connected between the second end of the switching unit and the second end of the AC power source. The second running coil group is electrically connected between the third end of the switching unit and the second end of the alternating current power source.

In some implementations, the compressor can be controlled to operate in a first startup mode or a second startup mode. The starting coil unit includes a first starting coil group and a second starting coil group. The first starting coil group includes at least one starting coil, and the second starting coil group includes at least one starting coil. When the compressor is operated in the first starting mode, the switching unit is controlled to switch such that the first starting coil group forms a loop with the alternating current power source via the switching unit. When the compressor is operated in the second startup mode, the switch unit is controlled to be switched such that the first start coil group and the second start coil group form a series connection, and a loop is formed between the switch unit and the AC power source. .

In some implementations, the switch unit includes a first end, a second end, and a third end, and is controllably switchable such that the first end and the second end form an electrical connection, or The first end and the third end form an electrical connection. The first starting coil set is electrically connected between the second end of the switching unit and the second end of the alternating current power source. The second starting coil group is electrically connected between the third end of the switching unit and the second end of the switching unit.

The effect of the invention is that the compressor can change the power consumed by the switching of the switching unit, and can also avoid frequently alternating between the operating state and the stopping state when the required power changes, so that the compressor The starting current at the start of operation causes a waste of electrical energy. Therefore, the compressor can have a better energy saving effect than the fixed-speed air conditioner by using a single-phase power source, and can have a lower manufacturing cost than the inverter type air conditioner.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figure 1, a first embodiment of a compressor of the present invention is adapted to form a current loop in series with an AC power source 100, a relay 200, and a capacitor 300. The AC power supply 100 includes a first-phase AC power supply and a single-phase AC power supply. The AC power supply 100 is a single-phase AC power supply, for example, but is not limited thereto.

The compressor includes a running coil unit 1, a starting coil unit 2, and a switching unit 3.

The starter coil unit 2 includes at least one starter coil 20. In the present embodiment, the starter coil unit 2 includes three starter coils 20 connected in series, but is not limited thereto. The running coil unit 1 includes a first running coil group 11 and a second running coil group 12, the first running coil group 11 includes at least one first running coil 111. In this embodiment, the first running coil group 11 includes two first running coils 111 connected in series, and the second running coil group 12 includes at least one second running coil 121. In the embodiment, the second running coil group 12 includes two serially connected to each other. The second running coil 121. It is worth noting that the total number of turns of the first running coil group 11 (ie, the sum of the turns of the two first running coils 111) and the total number of turns of the second running coil group 12 (ie, the two second running coils) The sum of the turns of 121 is different from each other, or the wire diameters of the two first running coils 111 are different from the two second running coils 121, or the total number of turns and the wire diameters of the two first running coils 111 are The two second running coils 121 are different.

The switch unit 3 includes a first end 31, a second end 32, and a third end 33. The switch unit 3 is controllably switchable such that the first end 31 and the second end 32 are electrically connected to each other or the first end 31 and the third end 33 are electrically connected to each other. In this embodiment, the switch unit 3 is a single-pole double-throw relay, but is not limited thereto.

The operating coil unit 1 is first connected in series with the switching unit 3, and is further connected to the starting coil unit 2 between the first end 101 and the second end 102 of the AC power source 100. The first running coil group 11 is electrically connected between the second end 32 of the switch unit 3 and the second end 102 of the AC power source 100. The second running coil group 12 is electrically connected to the switch unit 3 The third end 33 and the second end 102 of the AC power source 100, and the first end 31 of the switch unit 3 is electrically connected to the first end 101 of the AC power source 100 via the capacitor 300 and the relay 200.

The compressor is controllably operable in a first power consumption mode or a second power consumption mode. When the compressor is operated in the first power consumption mode, the first end 31 and the second end 32 of the switch unit 3 are electrically connected to each other, so that the first running coil group 11 is connected to the first operating coil group 11 via the switch unit 3 The AC power source 100, the relay 200, and the capacitor 300 form a loop. When the compressor is operated in the second power consumption mode, the switch unit 3 is controlled to switch, so that the second running coil group 12 forms with the AC power source 100, the relay 200 and the capacitor 300 via the switch unit 3 Loop. Since the total number of turns of the first running coil group 11 and the total number of turns of the second running coil group 12 are different from each other, the power consumed by the compressor in the first power consumption mode or the second power consumption mode The sizes are also different from each other. For example, the power consumed by the compressor when operating in the first power consumption mode is a rated maximum full load power, for example, 5 kW, and the power consumed by the compressor when operating in the second power consumption mode is, for example, 2.5. Half load power of kW, but not limited to this. In this way, the compressor switches between the first power consumption mode and the second power consumption mode according to different visual power requirements.

It should be added that the compressor of the non-converted cold air (ie, the fixed speed air conditioner) can only be switched between the stop state and the running state, and the compressor will generate a large starting current when switching from the stop state to the running state. Increasing power consumption, therefore, if the compressor frequently switches between the stop state and the operating state, it will increase a lot of unnecessary power consumption and waste. Since the compressor of the embodiment can switch between the first power consumption mode or the second power consumption mode, when the required power decreases, the compressor is switched from the first power consumption mode to the first In the second power consumption mode, the "power consumption reduction" method is used instead of "complete stop operation". Therefore, the compressor of the present embodiment can avoid frequent switching between the stopped state and the operating state, and the energy saving effect can be achieved under a long period of operation.

Referring to FIG. 2, a second embodiment of the compressor of the present invention is different from the first embodiment in that the starting coil unit 2 is connected in series with the switching unit 3, and is connected to the alternating current coil unit 1 in the alternating current. The first end 101 of the power source 100 is between the second end 102 and the second end 102. The running coil unit 1 includes at least one running coil 10. In the present embodiment, the running coil unit 1 includes three running coils 10 connected in series, and the starting coil unit 2 includes a first starting coil group 21 and a a second starting coil group 22, the first starting coil group 21 is electrically connected between the second end 32 of the switching unit 3 and the second end 102 of the AC power source 100, and includes two serially connected A start coil 211 is activated. The second starting coil group 22 is electrically connected between the third end 33 and the second end 32 of the switching unit 3, and includes two second starting coils 221 connected to each other. In this embodiment, the total number of turns of the first starting coil group 21 (ie, the sum of the turns of the two first starting coils 211) and the total number of turns of the second starting coil group 22 (ie, the two second starts) The sum of the turns of the coil 221 is the same, but is not limited thereto.

The compressor is controllably operable in a first start mode or a second start mode. When the compressor is operated in the first start mode, the switch unit 3 is controlled to switch, so that the first start coil group 21 forms a loop with the AC power source 100, the relay 200 and the capacitor 300 via the switch unit 3 . When the compressor is operated in the second start mode, the switch unit 3 is controlled to be switched such that the first start coil group 21 and the second start coil group 22 are connected in series, and then the switch unit 3 is connected thereto. The AC power source 100, the relay 200, and the capacitor 300 form a loop. Since the first starting mode is different from the equivalent starting coil parameter in the circuit of the second starting mode, the starting currents of the compressor operating in the first starting mode and the second starting mode are also different from each other. That is, the compressor of this embodiment can adjust the magnitude of the starting current generated at the time of startup.

Referring to Figure 3, a third embodiment of the compressor of the present invention comprises a total of two switching units 3. The operating coil unit 1 and the starting coil unit 2 are respectively connected in series with the two switching units 3, and are electrically connected between the first end 101 and the second end 102 of the AC power source 100, respectively.

The running coil unit 1 includes a plurality of running coils, and the starting coil unit 2 includes a plurality of starting coils. In the embodiment, the operating coil unit 1 includes the first running coil group 11 and the second running coil group 12, The first running coil group 11 has two first running coils 111 connected in series with each other, and the second running coil group 12 has two second running coils 121 connected in series with each other. The starting coil unit 2 includes the first starting coil group 21 and the second starting coil group 22, the first starting coil group 21 has two first starting coils 211 connected in series, and the second starting coil group 22 has Two second starting coils 221 connected in series with each other. Similar to the first embodiment, the total number of turns and the wire diameter of the first running coil group 11 are different from the total number of turns of the second running coil group 12. The total number of turns and the wire diameter of the first starting coil group 21 and the second starting coil group 22 are also different from each other. In this embodiment, the compressor can not only switch between the first power consumption mode and the second power consumption mode, but also switch between the first startup mode and the second startup mode, that is, In this embodiment, the power consumption of the compressor and the magnitude of the starting current can be adjusted according to requirements.

In addition, in other embodiments, the running coil unit 1 may further include a third running coil group, and the starting coil unit 2 may further include a third starting coil group, the switch Unit 3 also contains more endpoints to make the compressor more tunable in terms of power consumption and starting current.

In summary, the compressor of the present invention can switch between the first power consumption mode and the second power consumption mode according to the required power, so that frequent switching between the running state and the stop state can be avoided. The starting current at the start of the compressor causes a waste of electrical energy. Moreover, the air conditioning apparatus provided with the compressor of the present invention does not need to additionally provide a conversion module for changing the frequency of the AC power source 100 to adjust the power consumption of the compressor, thereby effectively reducing the manufacturing cost. Further, since the compressor of the present invention can be switched between the first start mode and the second start mode, the start current of the compressor can be adjusted, so that the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

1‧‧‧Running coil unit

10‧‧‧ running coil

11‧‧‧First running coil set

111‧‧‧First running coil

12‧‧‧Second running coil set

121‧‧‧Second running coil

2‧‧‧Starting coil unit

20‧‧‧Starting coil

21‧‧‧First start coil set

211‧‧‧First start coil

22‧‧‧Second start coil set

221‧‧‧Second starter coil

3‧‧‧Switch unit

31‧‧‧ first end

32‧‧‧second end

33‧‧‧ third end

100‧‧‧AC power supply

101‧‧‧ first end

102‧‧‧ second end

200‧‧‧ relay

300‧‧‧ capacitor

Other features and advantages of the present invention will be apparent from the embodiments of the present invention, wherein: Figure 1 is a block diagram schematically illustrating a first embodiment of the compressor of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS Figure 2 is a schematic view showing a second embodiment of the compressor of the present invention; and Figure 3 is a block diagram schematically showing a third embodiment of the compressor of the present invention.

Claims (5)

A compressor for electrically connecting an AC power source having a first end and a second end, and comprising a running coil unit, a starting coil unit, and a switching unit, wherein the running coil unit and the starting coil unit One of the switching units is connected in series, and the other of the operating coil unit and the starting coil unit is connected between the first end and the second end of the alternating current power source, when the running coil When the unit is connected in series with the switch unit, the running coil unit includes a plurality of running coils. When the starting coil unit is connected in series with the switching unit, the starting coil unit includes a plurality of starting coils, and the switching unit can be controlled to switch Having the number of turns of the operating coil or the starting coils of the operating coil unit and the starting coil unit via the switching unit and the alternating current power source forming a circuit, thereby causing different power consumption of the compressor . The compressor of claim 1 can be controlled to operate in a first power consumption mode or a second power consumption mode, wherein: the running coil unit comprises a first running coil group and a second running coil group The first running coil group includes at least one running coil, the second running coil group includes at least one running coil, and the at least one running coil included in the first running coil group is included in the second running coil group The number of turns of the at least one running coil is different from each other; when the compressor is operated in the first power consumption mode, the switch unit is controlled to be switched such that the first running coil group forms the AC power source via the switch unit a circuit; and when the compressor is operated in the second power consumption mode, the switch unit is controlled to be switched such that the second running coil group forms a loop with the alternating current power source via the switch unit. The compressor of claim 2, wherein: the switch unit includes a first end, a second end, and a third end, and is controllably switchable such that the first end and the second end are formed Electrically connected, or the first end and the third end form an electrical connection; the first running coil set is electrically connected between the second end of the switch unit and the second end of the AC power source; and the second The running coil set is electrically connected between the third end of the switch unit and the second end of the AC power source. The compressor of claim 1 is controllably operable in a first start mode or a second start mode, wherein: the start coil unit includes a first start coil group and a second start coil group, The first starting coil set includes at least one starting coil, the second starting coil group includes at least one starting coil; when the compressor is operated in the first starting mode, the switching unit is controlled to switch, such that the first starting coil The group forms a loop with the AC power source via the switch unit; and when the compressor operates in the second start mode, the switch unit is controlled to switch such that the first start coil group and the second start coil group form a string Then, a loop is formed with the AC power source via the switch unit. The compressor of claim 4, wherein: the switch unit includes a first end, a second end, and a third end, and is controllably switchable such that the first end and the second end are formed Electrically connecting, or the first end and the third end form an electrical connection; the first starting coil set is electrically connected between the second end of the switch unit and the second end of the alternating current power source; the second start The coil assembly is electrically connected between the third end of the switch unit and the second end of the switch unit.