Vacuum sealing wire connector

Abstract

The utility model discloses a vacuum sealing wire connector, which comprises a sealing cavity, a connecting bottom plate, a connecting flange and an outer end cover, one side of the sealing cavity is connected with the outer end cover, the other side of the sealing cavity is connected with the connecting flange, and the connecting bottom plate is arranged on the sealing cavity. According to the utility model, the vacuum end electrical transmission signal line is compacted on the double-end connecting piece, an electrical signal is transmitted to the normal pressure end through the copper alloy double-end connecting piece with good electric conduction and heat conduction performance, and the double-end connecting piece is fixed through the sintered glass, so that the vacuum sealing performance is good, and the insulating strength is high; a vacuum cavity and a normal-pressure cavity can be effectively isolated, so that a working scene in which electric signals are unobstructed and gas is effectively isolated is formed, and signal transmission in a vacuum isolation state is realized. The normal-pressure end can lead out electric signals in various modes and is connected to processing and executing elements such as a PLC, a servo controller and a frequency converter through cables, and the device has the advantages of being high in connection strength and small in signal attenuation.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical connectors, in particular to a vacuum sealing connector. Background Art

[0002] Terminal blocks are an accessory product used to achieve electrical connections. Existing airtight terminal blocks and vacuum-sealed aviation plugs are mostly fixed by welding or crimping, with male and female plugs plugged in. Especially in environments with large temperature differences, ordinary connectors are prone to poor sealing due to inconsistent material temperature coefficients; for a large number of terminal blocks (at least 50 terminals), high connection strength requirements, and harsh conditions such as water vapor and acid mist in the working environment, ordinary airtight connectors are prone to failure due to oxidation and corrosion, resulting in technical problems such as system disconnection and fault alarms. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a vacuum sealing connector, which can provide a vacuum sealing connector with high connection strength and mechanical connection strength.

[0004] The utility model is realized through the following technical solutions.

[0005] The utility model provides a vacuum sealed connector, comprising a sealed cavity, a connecting bottom plate, a connecting flange and an outer end cover, wherein one side of the sealed cavity is connected to the outer end cover, and the other side of the sealed cavity is connected to the connecting flange, and the connecting bottom plate is arranged on the sealed cavity.

[0006] Preferably, a groove A is provided on the connecting flange, and a sealing connecting piece is provided on the groove A.

[0007] Preferably, fastening bolts A are provided on the connecting flange, and the connecting flange is fastened to the sealing cavity through the fastening bolts A.

[0008] Preferably, the sealing connector is in a circular shape, and grooves B are respectively provided on both sides of the sealing connector.

[0009] Preferably, a sealing ring A is arranged in the groove B.

[0010] Preferably, a double-head connector and a sealing ring B are provided on the connecting bottom plate.

[0011] Preferably, a joint is provided on the outer end cover.

[0012] Preferably, four fastening bolts A are arranged in a cross-shaped distribution.

[0013] Preferably, the outer end cover is connected and fastened to the sealing cavity by fastening bolts B.

[0014] Preferably, a vacuum tube is arranged on the connecting flange, and the connecting flange is connected to the vacuum tube by welding.

[0015] The beneficial effects of the utility model are:

[0016] The vacuum sealed connector of the utility model compacts the vacuum end electrical transmission signal line onto the double-head connector, and the electrical signal is transmitted to the normal pressure end through the copper alloy double-head connector with good electrical and thermal conductivity. Since the double-head connector is fixed with sintered glass, the vacuum sealing is good and the insulation strength is high, which can effectively isolate the vacuum and normal pressure cavities, thus forming a working scene where the electrical signal is unimpeded and the gas is effectively isolated, realizing signal transmission under vacuum isolation. The normal pressure end can lead out the electrical signal in a variety of ways, and connect to the processing and execution elements such as PLC, servo controller, and inverter through cables. It has the advantages of high connection strength and low signal attenuation, and is suitable for industrial control scenarios with vacuum requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural explosion diagram of the utility model;

[0018] Figure 2 It is a main schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0020] Figure 4 It is a side view structural schematic diagram of the utility model;

[0021] In the figure: 1-sealing cavity, 2-connecting base plate, 3-double-head connector, 4-sealing connector, 41-groove B, 5-connecting flange, 51-groove A, 6-outer end cover, 61-fastening bolt B, 7-vacuum tube, 8-fastening bolt A, 9-connector, 10-sealing ring A, 11-sealing ring B. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0023] Embodiment 1:

[0024] like Figures 1 to 4As shown, a vacuum sealed connector includes a sealed cavity 1, a connecting bottom plate 2, a connecting flange 5 and an outer end cover 6. One side of the sealed cavity 1 is connected to the outer end cover 6, and the other side of the sealed cavity 1 is connected to the connecting flange 5. The connecting bottom plate 2 is arranged on the sealed cavity 1. The sealed cavity 1 is a vacuum cavity, and the connecting bottom plate 2 is a vacuum connecting bottom plate. The connecting bottom plate 2 is fixed in the sealed cavity 1 by screws, and the sealed cavity 1 is divided into two independent cavities, one side is a vacuum end connected to the vacuum working cavity, and the other side is a normal pressure end, which freely interacts with the external space. The outer end cover 6 protects and isolates the wiring terminals in the normal pressure cavity.

[0025] The connecting flange 5 is provided with a groove A51, and the groove A51 is provided with a sealing connector 4 to enhance the airtightness of the entire connector after connection.

[0026] The connection flange 5 is provided with fastening bolts A8, and the connection flange 5 is fastened to the sealing cavity 1 by the fastening bolts A8. The fastening bolts A8 are made of stainless steel.

[0027] The sealing connector 4 is annular, and grooves B41 are respectively arranged on both sides of the sealing connector 4. A sealing ring A10 is arranged in the groove B41. The sealing ring A10 is made of fluororubber. Since the sealing connector 4 is provided with sealing rings A10 on both sides to achieve a double-sided sealing effect, good sealing performance can be achieved.

[0028] The connecting bottom plate 2 is provided with a double-headed connector 3 and a sealing ring B11, and the sealing ring B11 is provided between the sealing cavity 1 and the end surface of the connecting bottom plate 2 to enhance the mutual sealing performance of the two. The double-headed connector 3 is a copper alloy double-headed bolt, and is fixed to the connecting bottom plate 2 by glass sintering. The electrical connection conductor adopts a copper alloy double-headed bolt 3, and the terminal of the electrical connection adopts a circular structure. The connection strength is better than the welding connection. In addition, since the expansion coefficients of the selected conductive copper alloy, the partition bottom plate, the sintered glass and other devices are roughly the same, they have excellent sealing performance at -20℃~230℃. The material of the sealing ring B11 is fluororubber.

[0029] The outer end cover 6 is provided with a connector 9. One side of the outer end cover 6 is a normal pressure cavity, which can freely interact with the outside and can be transmitted to processing and execution elements such as PLC through a hose connector 9.

[0030] The four fastening bolts A8 are arranged in a cross-shaped distribution so that the connection force is evenly distributed to ensure the overall sealing effect.

[0031] The outer end cover 6 is connected and fastened to the sealing cavity 1 by fastening bolts B61.

[0032] The connection flange 5 is provided with a vacuum tube 7, and the connection flange 5 is welded to the vacuum tube 7. The vacuum tube 7 is made of stainless steel and is fully welded to the required vacuum equipment.

Claims

1. A vacuum sealed connector, characterized in that: The invention comprises a sealed cavity (1), a connecting bottom plate (2), a connecting flange (5) and an outer end cover (6); one side of the sealed cavity (1) is connected to the outer end cover (6), and the other side of the sealed cavity (1) is connected to the connecting flange (5); and the connecting bottom plate (2) is arranged on the sealed cavity (1).

2. A vacuum sealed connector as claimed in claim 1, characterized in that: A groove A (51) is provided on the connecting flange (5), and a sealing connecting member (4) is provided on the groove A (51).

3. A vacuum sealed connector as claimed in claim 1, characterized in that: The connecting flange (5) is provided with fastening bolts A (8), and the connecting flange (5) is fastened to the sealing cavity (1) via the fastening bolts A (8).

4. A vacuum sealed connector as claimed in claim 2, characterized in that: The sealing connection piece (4) is in the shape of a ring, and grooves B (41) are respectively arranged on both sides of the sealing connection piece (4).

5. A vacuum sealed connector as claimed in claim 4, characterized in that: A sealing ring A (10) is arranged in the groove B (41).

6. A vacuum sealed connector as claimed in claim 1, characterized in that: A double-head connecting piece (3) and a sealing ring B (11) are provided on the connecting bottom plate (2).

7. A vacuum sealed connector as claimed in claim 1, characterized in that: A joint (9) is provided on the outer end cover (6).

8. A vacuum sealed connector as claimed in claim 3, characterized in that: Four of the fastening bolts A (8) are arranged in a cross-shaped distribution.

9. A vacuum sealed connector as claimed in claim 1, characterized in that: The outer end cover (6) is connected and fastened to the sealing cavity (1) via fastening bolts B (61).

10. A vacuum sealed connector as claimed in claim 1, characterized in that: A vacuum tube (7) is arranged on the connection flange (5), and the connection flange (5) is connected to the vacuum tube (7) by welding.

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