WO2011116561A1

WO2011116561A1 - Sealed power transmission device

Info

Publication number: WO2011116561A1
Application number: PCT/CN2010/074939
Authority: WO
Inventors: 杨明生; 叶宗锋; 刘惠森; 范继良; 王曼媛; 王勇; 张华�
Original assignee: 东莞宏威数码机械有限公司
Priority date: 2010-03-23
Filing date: 2010-07-02
Publication date: 2011-09-29
Also published as: CN101882724A; CN101882724B

Abstract

A sealed power transmission device (1)， adapted to be mounted on a vacuum chamber (2) to supply power to the interior thereof, comprises an insulator (10) and a conductor (20), wherein the insulator (10) has a main insulator body (11) and an insulator flange (12) extending outward from the lower end of the main insulator body (11); the conductor (20) has a main conductor body (21) and a conductor flange (22) extending outward from the main conductor body (21); the vacuum chamber (2) is provided with an insulator mounting hole (2a); the insulator (10) is provided with a conductor mounting hole (110); the insulator (10) is mounted in the insulator mounting hole (2a) and in tightly contact with the inner surface of the insulator mounting hole (2a); the conductor (20) is sleeved in the conductor mounting hole (110) and in tightly contact with the inner surface of the conductor mounting hole (110); and the insulator flange (12) and the conductor flange (22) are tightly secured to the vacuum chamber (2) by fastening screws (40). The sealed power transmission device has a simple structure, better sealing capability and high safety performance.

Description

Sealed power transmission device

The present invention relates to a power transmission device, and more particularly to a sealed power transmission device suitable for transmitting power to a vacuum chamber. Background technique

Power transmission devices are widely used in various sealed spaces or vacuum systems that require power supply. For example, with the in-depth study of organic semiconductor technology, organic devices are increasingly used, such as organic electroluminescent devices (OLED). ). The preparation of OLEDs is inseparable from the formation of organic thin films, and the most mature technology in the prior art is the preparation of organic thin films by evaporation techniques. When vacuum thin-filming is used to prepare a film, three types of heating evaporation sources such as a resistance heating evaporation source, an electron beam heating evaporation source, and an induction heating evaporation source are generally used to heat and evaporate the material. The use of the above various evaporation sources requires the supply of a power source. Therefore, various sealed power transmission devices for transmitting power to the vacuum chamber have emerged.

With the development of vacuum evaporation technology, there is an increasing demand for power transmission devices for the above vacuum evaporation systems. Not only does it require good sealing performance, but it also requires high safety performance and simple structure. However, existing power transmission devices cannot fully meet the above various functions and requirements.

Therefore, there is an urgent need for a sealed power transmission device which is simple in structure, has good sealing performance, and has high safety performance to solve the above-mentioned drawbacks in the prior art. Summary of the invention

In view of the above deficiencies of the prior art, it is an object of the present invention to provide a sealed power transmission device which has a simple structure, a good sealing property and a high safety.

In order to achieve the above object, the technical solution of the present invention is to provide a sealed power transmission device suitable for being mounted on a vacuum chamber for supplying power to the interior of the vacuum chamber, the sealed power transmission device including an insulator and an electric conductor The insulator includes a main insulator and an insulator boss extending outward from a lower end of the main insulator, the conductor including a main conductor and extending outward from the main conductor a conductive body boss, the vacuum cavity is provided with an insulation body mounting hole, and the insulator is provided with a conductor mounting hole, and the insulator is mounted on the insulator mounting hole and is closely attached to the insulator An inner wall of the ceremonial body, the electric conductor is sleeved in the electric conductor mounting hole and abuts against an inner wall of the electric conductor mounting hole, and the insulator boss and the electric conductor boss are tightly fixed by the fastening screw On the vacuum chamber.

Compared with the prior art, since the sealed power transmission device of the present invention comprises an electrically conductive conductor and an insulating insulator, the insulator separates the conductor from the vacuum chamber to ensure safety, and is simple. The design of the boss structure realizes the tight combination of the conductor and the insulation and the vacuum chamber, thereby ensuring the sealing performance of the sealed power transmission device. Therefore, the sealed power transmission device of the present invention has a simple structure and improves the sealing property and safety while ensuring electrical conductivity.

Preferably, the sealed power transmission device further includes an insulating ring, and the insulating body is provided with an insulating ring mounting device, and the insulating ring includes a main insulating ring and extends outward from the end of the main insulating ring. An insulating ring boss, the main insulating ring is mounted on the insulating ring mounting hole, the insulating ring boss abuts the conductor boss, the fastening screw penetrates the insulating ring and the An insulator boss is fixed to the vacuum chamber. The insulating ring is provided to isolate the connection between the fastening screw and the conductor boss, and to press the conductor boss.

Preferably, a gasket is disposed between the insulating ring boss and the nail cap of the fastening screw. The gasket is selected to prevent the fastening screw from screwing the insulating ring boss.

Preferably, the two ends of the electric conductor are fixed with a crimping screw, so that the electric power line can be pressed against the electric conductor to prevent contact failure, thereby improving the power transmission performance.

Preferably, the sealed power transmission device further includes an inner insulating cover, the inner insulating cover is provided with an electric wire perforation, and the inner insulating cover is located in the vacuum cavity and fixed on the insulating body. In addition, the sealed power transmission device further includes an outer insulating cover, the outer insulating cover is provided with a wire through hole, and the upper insulating cover is located outside the vacuum cavity and is fixed to the electric conductor. The inner insulating cover and the outer insulating cover are disposed in order to avoid leakage of the connection between the power transmission line and the electric conductor, thereby preventing occurrence of contact failure accidents and leakage accidents to improve the safety performance of the sealed power transmission device.

Preferably, the sealed power transmission device further includes a first sealing ring and a second sealing ring, and a first sealing groove is formed on a surface of the insulator boss opposite to the vacuum cavity, and the conductive body is convex Taiwan Surface defines a second seal groove, said seal ring to the ^first: the seal groove, said second seal ring groove on said second seal to further protect ii

The sealing performance of the cavity.

Preferably, the sealed power transmission device further includes an insulating ring, and the insulating ring is sleeved on the insulator boss and the conductor boss to further improve the insulation of the sealed power transmission device of the present invention. safety.

Figure 2 is an enlarged view of a portion A of the schematic view of the structure shown in Figure i.

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of the present invention.

As shown in Figs. 1 and 2, a sealed power transmission device 1 according to an embodiment of the present invention is mounted on a vacuum chamber 2 to supply power to the inside of the vacuum chamber 2. The sealed power transmission device 1 includes an insulator 10 and a conductor 20, and the vacuum chamber 2 is provided with an insulator mounting hole 2a. The insulator 10 includes a main insulator 11 and an insulator boss 12 extending outward from the lower end of the main insulator l i. The main insulator 11 is provided with an electrical conductor mounting 110 to form a hollow tubular structure. The electrical conductor 20 includes a main conductor 21 having a cylindrical structure and an electrical conductor boss 22 extending outward from a central portion of the main conductor 21. In this embodiment, the insulating body boss 12 and the conductor boss 22 are both annular.

Preferably, the sealed power transmission device 1 further includes an insulating ring 30 and a fastening screw 40. The insulating ring 30 has a structure similar to that of the insulator 10, that is, the insulating ring 30 includes a main insulating ring 31 and an insulating ring boss 32 extending outward from the end of the main insulating ring 31, The main insulating ring 31 is provided with a first mounting hole 310 to form a hollow tubular structure. The insulator boss 12 is provided with a second The mounting hole 120 defines an insulating ring mounting hole 220 on the conductor boss 22 .

With reference to FIG. 1 and FIG. 2, the main insulator II of the insulator 10 passes through the insulator mounting hole 2a and abuts against the inner wall of the insulator mounting hole 2a, and the main conductor 21 is mounted on the conductor. The hole 110 is in close contact with the inner wall of the conductor mounting hole 110. Similarly, the main insulating ring 31 is mounted in the insulating ring mounting hole 220 and abuts against the inner wall of the insulating ring mounting hole 220. The first mounting hole 310 is aligned with the second mounting hole 120, and the fastening screw 40 extends through the first mounting hole 3 i0 and the second mounting hole 320 and is fixed to the vacuum cavity 2 on. At this time, the nail cap of the fastening screw 40, the insulating ring boss 32, the conductor boss 22, the insulator boss 12, and the vacuum chamber 2 are in close contact with each other, the electric conductor 20 and the The insulator 10 is sealingly fixed to the vacuum chamber 2 together. The insulating ring 30 is disposed to isolate the connection between the fastening screw 40 and the conductor boss 22, and to press the conductor boss 22 well. Preferably, a gasket 41 is disposed between the insulating ring boss 32 and the cap of the fastening screw 40. The washer 41 is selected to prevent the fastening screw 40 from screwing the insulating ring boss 32.

Preferably, the sealed power transmission device 1 further includes a first sealing ring 51 and a second sealing ring 52. A first sealing groove 511 is defined on a surface of the insulator boss 12 opposite to the vacuum chamber 2. A second sealing groove 521 is defined on a surface opposite to the conductor boss 22, and the first sealing ring 51 is sleeved on the first sealing groove 511 to further improve the insulator 10 and the vacuum chamber 2 The sealing of the connection, the second sealing ring 52 is sleeved on the second sealing groove 521 to further improve the sealing of the conductor 20 to the insulating body 10.

Preferably, the conductors 20 are respectively placed at the inner and outer ends of the vacuum chamber 2 with crimping screws 61 and 62 respectively. The electric conductor 20 is used for connection with a power transmission line to convey an electric signal outside the vacuum chamber 2 into the vacuum chamber 2, and the setting of the crimping screws 61 and 62 makes the connection of the power line to the electric conductor 20 tight. It is pressed against the conductor 20 to prevent contact failure, and the power transmission performance is improved.

Preferably, the sealed power transmission device 1 further includes an inner insulating cover 71 and an outer insulating cover 72. The inner insulating cover 7i is provided with a wire through hole 711 for the transmission line to pass through, and the inner insulating cover 71 is located at the inner insulating cover 71. The vacuum chamber 2 is fixed to the upper end of the insulator i0. Specifically, the inner insulating cover 71 is provided with internal threads, and the outer surface of the upper end of the insulating body 10 is provided with a corresponding external thread, and the inner insulating cover is connected to the insulating body 10 by threads. Similarly, the outer insulating cover 72 is also provided with electric wires. The through hole 721 is passed through for the transmission line, and the outer insulating cover 72 is located outside the vacuum chamber 2 and is fixed to the electric conductor 20 by a screw connection. The inner insulating cover 71 and the outer insulating cover 72 are disposed in order to avoid leakage of the connection between the power transmission line and the electric conductor 20, thereby preventing occurrence of contact failure accidents and electric leakage accidents to improve the safety of the power transmission device.

Preferably, the sealed power transmission device 1 further includes an insulating ring 80, and the insulating ring 80 is sleeved on the outer side of the insulating boss 12 and the conductor boss 22 to further improve the sealed type of the present invention. Insulation and safety of the power transmission device 1.

It should be noted that the material of the insulator 10 of the present invention may be selected from an insulating and insulating material such as ceramics to improve power transmission performance. In addition, the insulating ring and the fastening screw of the present invention are matched. In the embodiment of the present invention, the number of the insulating ring and the fastening screw is two, but not limited to two, and the specific number thereof may be Change according to specific needs.

Compared with the prior art, the sealed power transmission device of the present invention comprises an electrically conductive conductor and an insulating insulator, and the insulator completely separates the electrical conductor from the vacuum chamber to ensure safety, and is simple. The design of the boss structure realizes the tight coupling of the conductor and the insulator to the vacuum chamber, thereby ensuring the sealing performance of the sealed power transmission device. Therefore, the sealed power transmission device of the present invention has a simple structure and improves the sealing property and safety while ensuring electrical conductivity.

The invention has been described above in connection with the preferred embodiments, but the invention is not limited to the embodiments disclosed above, and various modifications and equivalent combinations of the present invention in accordance with the invention are contemplated.

Claims

A sealed power transmission device adapted to be mounted on a vacuum chamber to supply power to the interior of the vacuum chamber, wherein: the sealed power transmission device comprises an insulator and a conductor, the insulator comprising a main insulator and An insulator boss extending from the lower end of the main insulator to the outside, the conductor includes a main conductor and a conductor boss extending outward from the main conductor, and the vacuum chamber is opened An insulator mounting hole, wherein the insulator is provided with a conductor mounting hole, the insulator is mounted on the insulator mounting hole and abuts against an inner wall of the insulator mounting hole, and the conductor is sleeved in the conductor mounting hole And adhering to the inner wall of the conductor mounting hole, the insulator boss and the conductor boss are tightly fixed to the vacuum chamber by fastening screws.

2. The sealed power transmission device according to claim 1, further comprising: an insulating ring, wherein the conductor boss is provided with an insulating ring mounting hole, the insulating ring includes a main insulating ring and the main insulating ring An insulating ring boss extending from the end of the insulating ring to the outside, the main insulating ring is mounted on the insulating ring mounting hole, and the insulating ring boss abuts against the conductor boss, the fastening screw The insulating ring and the insulator boss are penetrated and fixed to the vacuum chamber.

The sealed power transmission device according to claim 2, wherein a gasket is provided between the insulating ring boss and the nail cap of the fastening screw.

The sealed power transmission device according to claim 1, wherein a crimping screw is fixed to both ends of the electric conductor.

5. The sealed power transmission device according to claim 1, further comprising: an inner insulating cover, wherein the inner insulating cover is provided with a wire through hole, and the inner insulating cover is located in the vacuum cavity and fixed in the On the insulator.

The sealed power transmission device according to claim 1, further comprising: an outer insulating cover, wherein the outer insulating cover is provided with a wire through hole, and the upper insulating cover is located outside the vacuum cavity and fixed at the same On the conductor.

7. The sealed power transmission device according to claim 1, further comprising: a first sealing ring and a second sealing ring, wherein a first seal is formed on a surface of the insulator boss opposite to the vacuum chamber a second sealing groove is defined in a surface of the slot opposite to the conductor boss, the first sealing ring is sleeved on the first sealing groove, and the second sealing ring is sleeved on the second sealing groove.

The sealed power transmission device according to claim 1, further comprising an insulating ring, wherein the insulating ring is sleeved on an outer side of the insulator boss and the conductor boss.