DE202020106417U1 - Air valve for a DC frequency conversion compressor unit - Google Patents

Abstract

An air valve for a DC frequency conversion compressor unit, comprising a valve body (1), characterized in that on one side an air chamber (2) with a first main air opening (3) and on the other side a valve seat (4) with a second Main air opening (5) is arranged.

Description

Technical area

This invention relates to the technical field of compressors, and more particularly to an air valve for a direct current (DC) frequency conversion compressor unit.

State of the art

DC frequency conversion compressor is a new kind of mechatronic product, which has matured quickly with the development of brushless DC motors. Because of its excellent energy saving effect, it has quickly spread to the European market. The key to DC inverter air conditioners is using brushless DC motors. The control circuit of the compressor is essentially the same as that of an inverter controller. We call an air conditioner that uses a brushless DC motor as a compressor a "DC inverter air conditioner". The main difference between a brushless DC motor and a regular AC motor or a brushed DC motor is that its rotor is made of permanent magnet steel made from rare earth materials and the stator uses a concentrated, full pitch winding. Simply put, the stator of an ordinary DC motor made of permanent magnet is turned into a rotor, and the coil-wound rotor of an ordinary DC motor that needs a commutator and brushes to supply electricity is turned into a stator. In this way, the brushes required for ordinary DC motors can be omitted, and their speed control is similar to that of ordinary DC motors. The compressor valve is an important part of the compressor, used to control the timely intake and exhaust of air from the pressure cylinder. Its performance has a direct impact on the economy and reliability of the compressor.

However, with today's compressors, the valve flap is easy to break. It often does not meet the high requirements.

Content of the invention

The purpose of the present invention is to provide an air valve for a DC frequency conversion compressor unit in order to solve the problem of easy breakage of today's valve flaps.

The technical solution looks as follows: The air valve comprises a valve body in which the air chamber with the first main air opening is arranged on one side and the valve seat with the second main air opening is arranged on the other side.

A fastening ring is preferably embedded in the valve body on the side of the valve seat. The fastening ring is connected to the valve body by means of threads.

The valve body preferably comprises an air inlet chamber and an air outlet chamber, both of which are of the same size.

Preferably, one end of the air inlet chamber is provided with the first air inlet and the other end with the first air outlet. And one end of the air outlet chamber is provided with the second air outlet and the other end with the second air inlet.

Preferably, mounting blocks are installed on one side within the air inlet chamber and the air outlet chamber. Restriction blocks, on the other hand, are installed inside the air inlet chamber and the air outlet chamber. A partition wall is installed inside the air inlet chamber and the air outlet chamber. One end of each mounting block is connected to a spring which is provided at the other end with a connecting plate which is in turn connected to a valve stem on the other side. The valve stem is embedded in the partition.

The valve body is preferably welded to the air chamber.

1. 1. Der Ventilhauptkörper und der Ventilsitz sind durch den Befestigungsring mit einem Gewinde verbunden. Die Montage und Demontage sind bequem und schnell durchzuführen;
2. 2. Auf beiden Seiten der Lufteinlasskammer und der Luftauslasskammer sind eine Vielzahl von Lufteinlass- und Luftauslasslöchern vorgesehen, um die Lufteinlass- und Luftauslassmenge pro Zeiteinheit und damit die Betriebseffizienz zu erhöhen. Während der Ansaugung gelangt die Luft zuerst durch den Lufteinlass der Ersten Hauptluftöffnung in das Innere der Luftkammer und gelangt dann durch den Ersten Lufteinlass in das Innere der Lufteinlasskammer. Die Luft übt einen Druck auf die Verbindungsplatte aus. Die Verbindungsplatte schiebt den Ventilschaft in Bewegung. Wenn der Ventilschaft den Begrenzungsblock berührt, öffnet sich das durch den Ventilschaft blockierte Durchgangsloch. Die Luft gelangt durch das Loch und den Ersten Luftauslass in den Ventilsitz und schließt die Ansaugung des Kompressors durch den Lufteinlass der Zweiten Hauptluftöffnung ab. Wenn der Kompressor entlädt, tritt die Luft durch den Luftauslass der Zweiten Hauptluftöffnung ein. Schließlich gelangt sie durch den Zweiten Luftauslass in die Luftkammer und wird durch das Auslassloch der Ersten Hauptluftöffnung abgegeben. Die Ventilklappe wird durch den Ventilschaft ersetzt, der im Vergleich zur Ventilklappe eine höhere mechanische Festigkeit aufweist. Somit wird das Brechen der Ventilklappe unter Langzeitbetrieb vermieden und die Gesamtlebensdauer verlängert.

Particular advantages of the present invention are listed as follows:

1. 1. The valve main body and the valve seat are connected by the fixing ring with a thread. Assembly and disassembly are quick and easy to carry out;
2. 2. A plurality of air inlet and air outlet holes are provided on both sides of the air inlet chamber and the air outlet chamber in order to increase the air inlet and air outlet amount per unit time and thereby increase the operating efficiency. During the suction, the air first enters the interior of the air chamber through the air inlet of the first main air opening and then enters the interior of the air inlet chamber through the first air inlet. The air exerts pressure on the connecting plate. The connecting plate pushes the valve stem in motion. When the valve stem touches the restriction block, it opens through through hole blocked the valve stem. The air enters the valve seat through the hole and the first air outlet and closes the suction of the compressor through the air inlet of the second main air opening. When the compressor is discharging, the air enters through the air outlet of the second main air opening. Finally, it enters the air chamber through the second air outlet and is discharged through the outlet hole of the first main air opening. The valve flap is replaced by the valve stem, which has a higher mechanical strength compared to the valve flap. This prevents the valve flap from breaking during long-term operation and extends the overall service life.

Figure list

• 1 Gesamtstruktur des Luftventils der vorliegenden Erfindung,
• 2 3D-Gesamtansicht des Luftventils, und
• 3 Vergrößerte Ansicht des Bereichs A.

Show it:

• 1 Overall structure of the air valve of the present invention,
• 2 3D overall view of the air valve, and
• 3 Enlarged view of area A.

Detailed description

The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. These examples are only part of the embodiments and do not imply any restriction on the present invention.

As in 1-3 As shown, the present invention provides the following technical solution: An air valve for a DC frequency conversion compressor unit. It includes a valve body 1 , with the air chamber on one side 2 with the first main air opening 3 and on the other side the valve seat 4th with the second main air opening 5 is arranged. The first main air opening 3 and the second main air opening 5 are both provided with an air inlet hole and an air outlet hole connected to the air inlet pipe and the air inlet pipe, respectively.

A fastening ring is preferred 12 on the side of the valve seat 4th into the valve body 1 embedded. The fastening ring 12 is with the valve body 1 connected by thread. This simple type of connection enables quick installation and dismantling.

The valve body preferably comprises 1 an air inlet chamber 6th and an air discharge chamber 7th which are both the same size to ensure the same inlet and outlet rate.

One end of the air inlet chamber is preferred 6th with the first air inlet 8th and the other end with the first air outlet 9 Mistake. And one end of the exhaust chamber 7th is with the second air inlet 10 and the other end with the second air outlet 11 Mistake. On both sides of the air inlet chamber 6th and the air outlet chamber 7th a plurality of air inlet and air outlet holes are provided in order to increase the air inlet and air outlet amount per unit time and thereby increase the operating efficiency.

Mounting blocks are preferred 13 on one side inside the air inlet chamber 6th and the air outlet chamber 7th Installed. Boundary Blocks 17th are on the other hand inside the air inlet chamber 6th and the air outlet chamber 7th Installed. A partition is inside the air inlet chamber 6th and the air outlet chamber 7th Installed. One end of each mounting block 13 is with a feather 14th connected, the other end with a connecting plate 15th is provided, which on the other hand in turn with a valve stem 16 connected is. The valve stem 16 is embedded in the partition. The air exerts pressure on the connecting plate 15th out. The connecting plate 15th pushes the valve stem 16 moving. When the valve stem 16 the boundary block 17th touches it, it opens through the valve stem 16 blocked through hole through which air can move further.

The valve body is preferred 1 with the air chamber 2 welded. Welded joints have good air and water tightness and a stable structure. They save labor and time and do not reduce the cross-sectional area of the material so that the material can be fully used.

• Beim Gebrauch werden der Ventilkörper 1 und der Ventilsitz 4 über den Befestigungsring 12 verbunden. Wenn der Kompressor ansaugt, tritt die Luft zuerst durch das Lufteinlassloch der Ersten Hauptluftöffnung 3 in die Luftkammer 2 und dann durch den Ersten Lufteinlass 8 in das Innere der Lufteinlasskammer 6 ein. Die Luft übt einen Druck auf die Verbindungsplatte 15 aus und die Verbindungsplatte 15 schiebt den Ventilschaft 16 in Bewegung. Wenn der Ventilschaft 16 den Begrenzungsblock 17 berührt und stoppt, öffnet sich das durch den Ventilschaft 16 blockierte Durchgangsloch. Die Luft gelangt durch das Loch und den Ersten Luftauslass 9 in den Ventilsitz 4 und schließt die Ansaugung des Kompressors durch die Zweite Hauptluftöffnung 5 ab. Wenn der Kompressor entlädt, gelangt die Luft zuerst durch das Luftauslassloch der Zweiten Hauptluftöffnung 5 in den Ventilsitz 4 und tritt dann durch den Zweiten Lufteinlass 10 in die Luftauslasskammer 7 ein. Die Luft übt einen Druck auf die Verbindungsplatte 15 aus und die Verbindungsplatte 15 schiebt den Ventilschaft 16 in Bewegung. Wenn der Ventilschaft 16 den Begrenzungsblock 17 berührt und stoppt, öffnet sich das durch den Ventilschaft 16 blockierte Durchgangsloch. Die Luft gelangt durch das Loch und den Zweiten Luftauslass 11 in das Innere der Luftkammer 2 und wird durch das Auslassloch der Ersten Hauptluftöffnung 3 abgegeben. Durch mehrere Lufteinlässe und Luftauslässe auf beiden Seiten der Lufteinlasskammer 6 und der Lufteinlasskammer 7 werden der Lufteinlass und der Luftauslass pro Zeiteinheit und damit die Arbeitseffizienz erhöht. Der Ventilschaft 16 wird verwendet, um die heutige Ventilklappe zu ersetzen. Im Vergleich zur Ventilklappe weist der Ventilschaft 16 eine höhere mechanische Festigkeit auf, wodurch das Brechen der Ventilklappe beim Langzeitbetrieb vermieden und die Gesamtlebensdauer verlängert wird.

Working principle shows as follows:

• In use, the valve body 1 and the valve seat 4th via the fastening ring 12 connected. When the compressor is sucking in, the air first enters through the air inlet hole of the first main air opening 3 into the air chamber 2 and then through the first air inlet 8th inside the air inlet chamber 6th a. The air exerts pressure on the connecting plate 15th off and the connecting plate 15th pushes the valve stem 16 moving. When the valve stem 16 the boundary block 17th touches and stops, it opens through the valve stem 16 blocked through hole. The air passes through the hole and the first air outlet 9 in the valve seat 4th and closes the suction of the compressor through the second main air port 5 from. When the compressor is discharging, the air first comes through the air outlet hole of the second main air opening 5 in the valve seat 4th and then enters through the second air inlet 10 into the air outlet chamber 7th a. The air exerts pressure on the connecting plate 15th off and the connecting plate 15th pushes the valve stem 16 moving. When the valve stem 16 the boundary block 17th touches and stops, it opens through the valve stem 16 blocked through hole. The air passes through the hole and the second air outlet 11 inside the air chamber 2 and is through the outlet hole of the first main air opening 3 submitted. Through several air inlets and air outlets on both sides of the air inlet chamber 6th and the air inlet chamber 7th the air inlet and the air outlet per unit time and thus the work efficiency are increased. The valve stem 16 is used to replace today's valve flap. In comparison to the valve flap, the valve stem 16 a higher mechanical strength, whereby the breakage of the valve flap during long-term operation is avoided and the overall service life is extended.

It will be apparent to one skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive.

List of reference symbols

1:

Valve body

2:

Air chamber

3:

First main air opening

4:

Valve seat

5:

Second main air opening

6:

Air inlet chamber

7:

Air outlet chamber

8th:

First air inlet

9:

First air outlet

10:

Second air inlet

11:

Second air outlet

12:

Fastening ring

13:

Mounting block

14:

feather

15:

Connecting plate

16:

Valve stem

17:

Boundary block

Claims (6)

An air valve for a DC frequency conversion compressor unit, comprising a valve body (1), characterized in that on the one side an air chamber (2) with a first main air opening (3) and on the other side a valve seat (4) with a second Main air opening (5) is arranged. An air valve for a DC frequency conversion compressor unit according to Claim 1 , characterized in that a fastening ring (12) is embedded in the valve body (1) on one side of the valve seat (4), the fastening ring (12) being connected to the valve body (1) via a thread. An air valve for a DC frequency conversion compressor unit according to Claim 1 , characterized in that the valve body (1) comprises an air inlet chamber (6) and an air outlet chamber (7), both of which are of the same size. An air valve for a DC frequency conversion compressor unit according to Claim 3 , characterized in that one end of the air inlet chamber (6) is provided with a first air inlet (8) and the other end of the air inlet chamber (6) is provided with a first air outlet (9), and that one end of the air outlet chamber (7) is provided with a second air inlet (10) and the other end of the air outlet chamber (7) is provided with a second air outlet (11). An air valve for a DC frequency conversion compressor unit according to Claim 3 , characterized in that fastening blocks (13) are attached on one side within the air inlet chamber (6) and the air outlet chamber (7) and limiting blocks (17) on the other side within the air inlet chamber (6) and the air outlet chamber (7), wherein a partition is attached within the air inlet chamber (6) and the air outlet chamber (7), one end of each mounting block (13) being connected to a spring (14), the other end of which is provided with a connecting plate (15) which is mounted on the the other side is connected to a valve stem (16) which is embedded in the partition. An air valve for a DC frequency conversion compressor unit according to Claim 1 , thereby characterized in that the valve body (1) is welded to the air chamber (2).

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