Vacuum packaging structure

Abstract

The utility model provides a vacuum packaging structure, which comprises an infrared detector, one side of the infrared detector is fixedly connected with a protective shell, and the protective shell is internally provided with a storage port. Compared with the prior art, the vacuum packaging structure has the following beneficial effects: a vacuumizing copper pipe is fixed in a joint through brazing, so that the vacuum packaging structure is convenient to use; then a vacuum pump is used for evacuating gas in the infrared detector, then a cold sealing clamp is used for extruding and cutting off the vacuumizing copper pipe so that a sealing seam can be formed in the cut-off position, and finally the vacuumizing copper pipe is pressed towards the direction of the protective shell so that the vacuumizing copper pipe can enter the containing opening; in the process, the connecting plate slides along the guide opening and enables the corrugated pipe to contract, the connector can be limited by matching with the locking bolt and the locking hole, and vacuum packaging of the infrared detector can be completed through the steps. Therefore, the vacuumizing copper pipe is prevented from being damaged due to collision.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vacuum packaging structure belongs to infrared detector production field. BACKGROUND

[0002] The infrared detector is a kind of sensor that can detect and measure infrared radiation (wavelength range is about 0.75 microns to 1000 microns). When producing infrared detector, the infrared detector needs to be vacuum packaged, and the specific process is as follows: first, a vacuum hole is formed on the surface of the shell of the infrared detector, then a vacuum copper pipe is selected and the first end of the vacuum copper pipe is brazed in communication with the vacuum hole, then a vacuum pump is connected to the tail end of the vacuum copper pipe, and the gas in the cavity of the shell of the infrared detector is pumped out by the vacuum pump, then the vacuum copper pipe is extruded and cut off by using a cold sealing clamp, so that a sealing seam is formed at the cut-off part of the vacuum copper pipe, and finally protective glue is coated on the outside of the sealing seam, to form an infrared detector vacuum packaging structure.

[0003] In the prior art, the vacuum copper pipe is exposed outside the shell after the infrared detector is vacuum packaged, and when the infrared detector collides with the outside world, the vacuum copper pipe exposed outside the shell is easily damaged, thereby affecting the sealing property of the infrared detector. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a vacuum packaging structure to solve the problem that the vacuum copper pipe is exposed outside the shell after the infrared detector is vacuum packaged, and when the infrared detector collides with the outside world, the vacuum copper pipe exposed outside the shell is easily damaged, thereby affecting the sealing property of the infrared detector.

[0005] To achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: a vacuum packaging structure, comprising an infrared detector, the infrared detector is fixedly connected with a protective shell on one side, a receiving opening is formed in the protective shell, guide openings are formed on both sides of the protective shell, a connecting seat is slidably connected in the receiving opening, connecting plates are fixedly connected on both sides of the connecting seat, the connecting plates are slidably connected with the guide openings, locking holes are formed on the surfaces of the protective shell and the connecting plates, locking bolts are screwed in the locking holes, a joint is fixedly connected to the inner wall of the connecting seat, a bellows is fixedly connected to the bottom end of the joint, the receiving opening, the guide opening, the joint, the bellows and the infrared detector are in communication, and a vacuum copper pipe is sleeved on the surface of the joint.

[0006] Further, the vacuum copper pipe is attached to the inner wall of the joint, and the cross sections of the joint, the bellows and the vacuum copper pipe are all oblate.

[0007] Further, a to-position plate is fixedly connected to the inner wall of the joint, and the to-position plate has a cross-section in the shape of a flat ring.

[0008] Further, a tail end of the vacuumized copper pipe is extruded to form a sealing seam, and the sealing seam is coated with protective glue.

[0009] Further, the connecting plate has a cross-section in the shape of an "L", and the width of the connecting plate is greater than the width of the guide opening.

[0010] Further, the size of the joint is less than the size of the receiving opening, and the size of the bellows is less than the size of the receiving opening.

[0011] The beneficial effects of the present application are as follows: the vacuumized copper pipe is fixed in the joint by brazing, then the gas in the infrared detector is evacuated by a vacuum pump, next the vacuumized copper pipe is extruded and cut off by a cold sealing clamp to form a sealing seam, finally the vacuumized copper pipe is pressed towards the protective shell to enter the receiving opening, in this process, the connecting plate will slide along the guide opening and make the bellows shrink, the joint is limited by the locking bolt and the locking hole, the vacuum packaging of the infrared detector is completed through the above steps, and since the vacuumized copper pipe is completely located in the receiving opening after the vacuum packaging of the infrared detector is completed, the vacuumized copper pipe is prevented from being damaged due to bumping.

[0012] The vacuumized copper pipe is set in the shape of a flat circle, which not only makes the sealing seam not easy to fail, effectively improves the sealing property of the sealing seam, but also makes the cut-off part closer to the brazing communication part, so that the length of the vacuumized copper pipe left after cutting is shorter. BRIEF DESCRIPTION OF DRAWINGS

[0013] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings:

[0014] Figure 1 Fig. 1 is a schematic diagram of the overall structure of the vacuum packaging structure of the present application;

[0015] Figure 2 Fig. 2 is a schematic diagram of the infrared detector structure of the vacuum packaging structure of the present application;

[0016] Figure 3 Fig. 3 is a schematic diagram of the protective shell structure of the vacuum packaging structure of the present application;

[0017] Figure 4 Fig. 4 is a schematic diagram of the vacuumized copper pipe structure of the vacuum packaging structure of the present application.

[0018] In the figure: 1, infrared detector; 2, protective shell; 3, storage mouth; 4, guide mouth; 5, connecting seat; 6, connecting plate; 7, locking hole; 8, locking bolt; 9, joint; 10, corrugated pipe; 11, vacuum copper pipe; 12, to the board; 13, protective glue. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0020] Please refer to Figures 1 to 3 The utility model provides a kind of vacuum packaging structure, including infrared detector 1, infrared detector 1 side fixedly connected with protective shell 2, storage mouth 3 is set in protective shell 2, protective shell 2 both sides are equipped with guide mouth 4, connecting seat 5 is slidably connected in storage mouth 3, connecting seat 5 both sides are fixedly connected with connecting plate 6, connecting plate 6 and guide mouth 4 are slidably connected, locking hole 7 is set in the surface of protective shell 2 and connecting plate 6, locking bolt 8 is threadedly connected in locking hole 7, joint 9 is fixedly connected in the inner wall of connecting seat 5, joint 9 bottom end is fixedly connected with corrugated pipe 10, storage mouth 3 and guide mouth 4 between, joint 9 and corrugated pipe 10 between, corrugated pipe 10 and infrared detector 1 between are communicated, vacuum copper pipe 11 is sleeved on the surface of joint 9.

[0021] By brazing, vacuum copper pipe 11 is fixed in joint 9, then using vacuum pump (not shown in the figure) to evacuate the gas in infrared detector 1, next using cold seal pliers (not shown in the figure) to extrude and cut off vacuum copper pipe 11 so that the cut-off part forms a sealing seam, finally press vacuum copper pipe 11 towards protective shell 2 so that it enters storage mouth 3, in this process, connecting plate 6 will slide along guide mouth 4 and make corrugated pipe 10 shrink, cooperate locking bolt 8 and locking hole 7 to limit joint 9, through the above steps, the vacuum packaging of infrared detector 1 can be completed, since vacuum copper pipe 11 is completely located in storage mouth 3 after the completion of vacuum packaging of infrared detector 1, so as to avoid the damage of vacuum copper pipe 11 due to bumping.

[0022] Please refer to Figures 1 to 4 The utility model provides a kind of technical scheme: vacuum copper pipe 11 is attached to the inner wall of joint 9, the section of joint 9, corrugated pipe 10 and vacuum copper pipe 11 are all flat round shape.By setting vacuum copper pipe 11 into flat round shape, not only the sealing seam is not easy to fail, effectively improve the sealing property of sealing seam, but also make the cut-off part closer to brazing communication, so that the length of vacuum copper pipe 11 left after cutting is shorter.

[0023] The inner wall of the joint 9 is fixedly connected with a locating plate 12, which is in the shape of a flat ring. When the vacuum copper pipe 11 entering the joint 9 contacts with the locating plate 12 fixedly connected with the inner wall of the joint 9, the vacuum copper pipe 11 will not be able to move any more, thus avoiding the length of the vacuum copper pipe 11 entering the joint 9 being too long.

[0024] The tail end of the vacuum copper pipe 11 is extruded to form a sealing seam, and the outer side of the sealing seam is coated with protective glue 13. Coating the protective glue 13 on the outer side of the sealing seam can further improve the sealing effect of the sealing seam.

[0025] The cross section of the connecting plate 6 is in the shape of "L", and the width of the connecting plate 6 is greater than the width of the guide opening 4. The cross section of the connecting plate 6 being in the shape of "L" and the width of the connecting plate 6 being greater than the width of the guide opening 4 not only avoid the connecting plate 6 from being separated from the guide opening 4 during sliding, but also facilitate the user to move the joint 9 in the receiving opening 3 by the connecting plate 6.

[0026] The size of the joint 9 is smaller than the size of the receiving opening 3, and the size of the corrugated pipe 10 is smaller than the size of the receiving opening 3. The size of the joint 9 being smaller than the size of the receiving opening 3 and the size of the corrugated pipe 10 being smaller than the size of the receiving opening 3 avoid the above two from rubbing against the receiving opening 3 during sliding.

[0027] Specific implementation: pull the connecting plate 6 upwards to make it slide along the inner wall of the guide opening 4 opened on both sides of the protective shell 2, thus driving the joint 9 fixedly connected with the inner wall of the connecting seat 5 to move upwards in the receiving opening 3. In this process, the corrugated pipe 10 fixedly connected with the infrared detector 1 on one side of the protective shell 2 will be stretched. Then, the vacuum copper pipe 11 is put into the joint 9 and fixed in the joint 9 by brazing. Next, the vacuum pump is connected to the tail end of the vacuum copper pipe 11, and the gas in the infrared detector 1 is pumped out by the vacuum pump. Then, the cold sealing pliers are used to extrude and cut the vacuum copper pipe 11, so that a sealing seam is formed at the cut end of the vacuum copper pipe 11. Then, protective glue 13 is coated on the outer side of the sealing seam to enhance the sealing effect of the sealing seam. Finally, the vacuum copper pipe 11 is pressed towards the protective shell 2 so that it enters the receiving opening 3. In this process, the corrugated pipe 10 will be contracted. After the vacuum copper pipe 11 completely enters the receiving opening 3, the locking bolt 8 is rotated to move along the inner wall of the connecting plate 6. At this time, the locking bolt 8 will be inserted into the locking hole 7 opened on the surface of the protective shell 2, thus completing the vacuum packaging of the infrared detector 1. Since the vacuum copper pipe 11 is completely located in the receiving opening 3 after the infrared detector 1 is vacuum packaged, the vacuum copper pipe 11 is prevented from being damaged due to bumping. The vacuum copper pipe 11 can be replaced by a vacuum aluminum pipe.

[0028] By setting the evacuated copper pipe 11 into a flat round shape, the deformation of the cut-off part of the evacuated copper pipe 11 is smaller compared with a common round evacuated copper pipe, not only the sealing joint is not easy to fail, effectively improving the sealing performance of the sealing joint, but also the cut-off part can be closer to the brazing communication part, so that the length of the evacuated copper pipe 11 left after cutting is shorter.

[0029] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A vacuum packaging structure, characterized by: Including infrared detector (1), one side fixedly connected with protective shell (2), the protective shell (2) is opened in the receiving mouth (3), the protective shell (2) both sides are opened with the guide mouth (4), the receiving mouth (3) is slidably connected with the connecting seat (5), the connecting seat (5) both sides are fixedly connected with the connecting plate (6), the connecting plate (6) and the guide mouth (4) are slidably connected, the protective shell (2) and the connecting plate (6) surface are all opened with locking hole (7), the locking hole (7) is screwed with locking bolt (8), the connecting seat (5) inner wall is fixedly connected with the joint (9), the joint (9) bottom is fixedly connected with the bellow (10), the receiving mouth (3) and the guide mouth (4) between, the joint (9) and the bellow (10) between, the bellow (10) and the infrared detector (1) are all intercommunication, the joint (9) surface is equipped with the vacuum copper pipe (11).

2. The vacuum packaging structure according to claim 1, wherein: The vacuum copper pipe (11) is attached to the inner wall of the joint (9), the cross section of the joint (9), the bellow (10) and the vacuum copper pipe (11) is all flat round.

3. The vacuum packaging structure of claim 1, wherein: The inner wall of the joint (9) is fixedly connected with the in-place plate (12), the cross section of the in-place plate (12) is flat ring.

4. The vacuum packaging structure of claim 1, wherein: The tail end of the vacuum copper pipe (11) is extruded to form a sealing seam, and the outer side of the sealing seam is coated with a protective glue (13).

5. The vacuum encapsulation structure of claim 1, wherein: The cross section of the connecting plate (6) is "L" shape, and the width of the connecting plate (6) is greater than the width of the guide mouth (4).

6. The vacuum encapsulation structure of claim 1, wherein: The size of the joint (9) is smaller than the size of the receiving mouth (3), and the size of the bellow (10) is smaller than the size of the receiving mouth (3).

Images