CN211756599U

CN211756599U - APD sealant coating device

Info

Publication number: CN211756599U
Application number: CN201922403594.1U
Authority: CN
Inventors: 不公告发明人
Original assignee: Beijing Zhongchuangwei Nanjing Quantum Communication Technology Co ltd
Current assignee: Beijing Zhongchuangwei Nanjing Quantum Communication Technology Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-10-27
Anticipated expiration: 2029-12-27

Abstract

The utility model provides a APD sealant coating device, which comprises a pipe clamp, wherein the upper surface of the pipe clamp is a semi-cylindrical surface matched with the cold surface of the APD pipe, a positioning guide plate is arranged outside one end part of the pipe clamp, a groove with uniform depth is formed on the upper surface of the pipe clamp close to the positioning guide plate, and the groove is used for injecting sealant; the other end of the pipe clamp is provided with a baffle with uniform height, and a step is formed between the baffle and the pipe clamp and used for injecting sealant. The utility model discloses can guarantee that the pipe clamp surface laminates the APD completely, ensure that sealed glue coating position is accurate, and realize that the encapsulation junction of APD all has sealed glue to wrap up, guaranteed the leakproofness between APD and the pipe clamp, and simple structure, convenient operation is favorable to improving the refrigeration efficiency to the APD.

Description

APD sealant coating device

Technical Field

The utility model belongs to the technical field of communication, especially, sealed coating device that glues of APD.

Background

As shown in fig. 1, a conventional clamping structure is provided, and a refrigeration end surface is disposed at one end of the clamping structure, and includes a refrigeration portion and a temperature measurement portion; one side of the refrigerating part is tightly attached to the surface of the refrigerator and used for refrigerating the end part of the pin end of the photodiode; the temperature measuring part is positioned on one side of the refrigerating part, which is far away from the refrigerator, and the temperature measuring part is internally provided with a temperature measuring sensor. Because Avalanche Photodiode (APD) encapsulation junction has certain gradient, there is the space between the present clamping structure surface and the APD encapsulation junction, leads to between clamping structure and the APD not totally laminating, and the steam in the air can get into the space between APD and the clamping structure, leads to the refrigeration efficiency to the APD to descend, consequently, will seal up it with sealed glue in APD encapsulation junction.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in providing a sealed glue coating unit of APD can guarantee that the pipe clamp surface laminates the APD completely, ensures sealed glue coating position accuracy, and can realize that the encapsulation junction of APD all has sealed glue parcel, has guaranteed the leakproofness between APD and the pipe clamp, is favorable to improving the refrigeration efficiency to the APD.

Realize the utility model discloses the technical solution of purpose does:

an APD sealant coating device comprises a pipe clamp, wherein the upper surface of the pipe clamp is a semi-cylindrical surface matched with the cooling surface of the APD pipe, a positioning guide plate is arranged outside one end of the pipe clamp, a groove with uniform depth is formed in the upper surface of the pipe clamp close to the positioning guide plate, and the groove is used for injecting sealant; the other end of the pipe clamp is provided with a baffle with uniform height, and a step is formed between the baffle and the pipe clamp and used for injecting sealant.

Furthermore, the utility model discloses a sealed coating device that glues of APD, the width of recess is greater than or equal to the width of the vertical projection of APD encapsulation junction.

Furthermore, the utility model discloses a sealed coating unit that glues of APD, the upper surface of recess is the half cylinder coaxial with pipe clamp upper surface.

Furthermore, the utility model discloses a sealed coating device that glues of APD, the height of baffle ═ the height of the horizontal projection of APD encapsulation junction.

Furthermore, the utility model discloses a sealed coating unit that glues of APD, the upper surface of baffle be with the coaxial half cylinder of pipe clamp upper surface.

Further, the utility model discloses a sealed coating device that glues of APD, location deflector and pipe clamp integrated into one piece, and the location deflector is higher than the pipe clamp.

Further, the utility model discloses a sealed coating device that glues of APD, the pipe clamp bottom that the baffle corresponds still are equipped with integrated into one piece's mount for fixed pipe clamp when installing.

Further, the utility model discloses a sealed coating device that glues of APD, the degree of depth of recess is the same with the height of baffle.

Further, the utility model discloses a sealed coating device that glues of APD, the lower part of location deflector is equipped with the through-hole, the through-hole is used for interlude APD's pin.

The utility model adopts the above technical scheme to compare with prior art, have following technological effect:

1. the utility model discloses a sealed coating unit that glues of APD can guarantee that the pipe clamp surface laminates the APD completely, ensures sealed glue coating position accuracy.

2. The utility model discloses a sealed coating unit that glues of APD can guarantee that the encapsulation junction of APD all has sealed gluey parcel, has guaranteed the leakproofness between APD and the pipe clamp.

3. The utility model discloses a sealed coating device that glues of APD simple structure, convenient operation is favorable to improving the refrigeration efficiency to APD.

Drawings

Fig. 1 is a prior art photodiode clamping structure.

Fig. 2 is a schematic view of the overall structure of the APD sealant applying apparatus of the present invention.

FIG. 3 is a sectional view of the installation of the APD sealant application apparatus of the present invention.

Reference signs mean: 1: pipe clamp, 2: positioning guide plate, 3: groove, 4: a baffle plate, 5: a fixing frame, 6: through hole, 7: upper package joint, 8: lower package joint, 9: an APD.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

Example 1

An APD sealant coating device is shown in figure 2 and comprises a pipe clamp 1, wherein the upper surface of the pipe clamp 1 is a semi-cylindrical surface and is matched with a refrigerating surface of an APD pipe. A positioning guide plate 2 is arranged outside one end part of the pipe clamp 1, the positioning guide plate 2 and the pipe clamp 1 are integrally formed, the positioning guide plate 2 is higher than the pipe clamp 1, a through hole 6 is formed in the lower part of the positioning guide plate 2, and the through hole 6 is used for penetrating pins of APDs. The upper surface of the pipe clamp 1 clinging to the positioning guide plate 2 is provided with a groove 3 with uniform depth, the width of the groove 3 is equal to the width of the vertical projection of the packaging joint of the APD9, the upper surface of the groove 3 is a semi-cylindrical surface coaxial with the upper surface of the pipe clamp 1, and the sealant injected into the groove 3 just wraps the packaging joint of the lower half pipe of the APD 9.

Another tip of pipe clamp 1 is equipped with highly even baffle 4, and the height of baffle 4 is equal to the height of the horizontal projection of APD9 encapsulation junction, and the upper surface of baffle 4 is the half cylinder coaxial with pipe clamp 1 upper surface, form the step between baffle 4 and the pipe clamp 1 for pour into the sealed glue of encapsulation APD 9. The bottom of the pipe clamp 1 corresponding to the baffle 4 is also provided with an integrally formed fixing frame 5 for fixing the pipe clamp 1 during installation.

Example 2

An APD sealant coating device comprises a pipe clamp 1, wherein the upper surface of the pipe clamp 1 is a semi-cylindrical surface and is matched with the refrigerating surface of an APD pipe. A positioning guide plate 2 is arranged outside one end part of the pipe clamp 1, the positioning guide plate 2 and the pipe clamp 1 are integrally formed, the positioning guide plate 2 is higher than the pipe clamp 1, a through hole 6 is formed in the lower part of the positioning guide plate 2, and the through hole 6 is used for penetrating pins of APDs. The upper surface of the pipe clamp 1 close to the positioning guide plate 2 is provided with a groove 3 with uniform depth, the width of the groove 3 is larger than the width of the vertical projection of the APD9 packaging joint, the upper surface of the groove 3 is a semi-cylindrical surface coaxial with the upper surface of the pipe clamp 1, and the sealing glue injected into the groove 3 wraps the packaging joint of the lower half pipe of the APD9 and part of the APD 9.

The APD sealant coating device of the scheme has the following use process:

the APD9 is arranged on the pipe clamp 1, the refrigerating surface of the APD9 is tightly attached to the inner wall of the pipe clamp 1, and the pins of the APD9 penetrate through the through holes 6, so that the sealing glue can not flow into the refrigerating surface of the APD9 when the sealing glue is injected. And injecting sealant into the groove 3 from one end of the groove 3 by using a dispensing machine with a needle head until the sealant overflows from the other end of the groove 3, so that the lower packaging joint 8 is filled with the sealant, and dispensing is performed at the corresponding upper packaging joint 7, wherein the upper packaging joint 7 is a part where the APD9 is not in contact with the pipe clamp 1. And then, injecting sealant into the cavity from one end of the cavity between the baffle 4 and the pipe clamp 1 by using a dispenser with a needle head until the sealant overflows from the other end of the cavity, so that the lower packaging joint 8 is filled with the sealant, and dispensing at the corresponding upper packaging joint 7. At this time, the two lower package joints 8 of the APD9 are filled with the sealant, and the two upper package joints are wrapped by the sealant.

The foregoing is only a part of the embodiments of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements can be made without departing from the principles of the present invention, and these improvements should be regarded as the protection scope of the present invention.

Claims

1. An APD sealant coating device is characterized by comprising a pipe clamp (1), wherein the upper surface of the pipe clamp (1) is a semi-cylindrical surface matched with the cooling surface of the APD pipe, a positioning guide plate (2) is arranged outside one end part of the pipe clamp (1), a groove (3) with uniform depth is formed in the upper surface of the pipe clamp (1) close to the positioning guide plate (2), and the groove (3) is used for injecting sealant; the other end of the pipe clamp (1) is provided with a baffle (4) with uniform height, and a step is formed between the baffle (4) and the pipe clamp (1) for injecting sealing glue.

2. The APD sealant application apparatus according to claim 1 wherein the width of the recess (3) is greater than or equal to the width of the vertical projection of the APD (9) package junction.

3. The APD sealant application apparatus of claim 1 or 2 wherein the upper surface of the groove (3) is a semi-cylindrical surface coaxial with the upper surface of the tube clamp (1).

4. The APD sealant application apparatus of claim 1 wherein the height of the baffle plate (4) is the height of the horizontal projection of the APD (9) package junction.

5. The APD sealant application apparatus according to claim 1 or 4 wherein the upper surface of the baffle plate (4) is a semi-cylindrical surface coaxial with the upper surface of the tube clamp (1).

6. The APD sealant application apparatus of claim 1 wherein the positioning guide plate (2) is integrally formed with the tube clamp (1) and the positioning guide plate (2) is higher than the tube clamp (1).

7. The APD sealant application apparatus of claim 1 wherein the bottom of the tube clamp (1) corresponding to the baffle plate (4) is further provided with an integrally formed fixing bracket (5) for fixing the tube clamp (1) during installation.

8. The APD sealant application apparatus of claim 4 wherein the depth of the recess (3) is the same as the height of the baffle plate (4).

9. The APD sealant application apparatus of claim 1, wherein the lower portion of the positioning guide plate (2) is provided with through holes (6), and the through holes (6) are used for inserting pins of APDs.