A highly integrated packaging structure and packaging method for infrared detector

Abstract

The present invention relates to the field of infrared detector technology, and in particular to a highly integrated packaging structure and packaging method for infrared detectors, wherein the highly integrated packaging structure of the infrared detector comprises a fixing sleeve, a lead rod and an adjusting component. When the lead rod is installed on the fixing sleeve, the fixing sleeve is first installed at a preset position, and then the lead rod is inserted into a mounting hole on the fixing sleeve. The lead rod can slide in the mounting hole in an initial state, and the lead rod is set to a shortest state in the initial state. According to the distance requirement between a pad and a pin, the length of the lead rod is adjusted using the adjusting component, so that the length of the lead rod can be adjusted in time according to the requirement. Furthermore, after the length of the lead rod is adjusted to a suitable length, the position of the lead rod on the fixing sleeve is adjusted again according to actual requirements, so that the lead rod meets the requirements of various points.

Description

Technical Field

[0001] The present invention relates to the technical field of infrared detectors, and in particular to a highly integrated packaging structure and a packaging method for infrared detectors. Background Art

[0002] Infrared detector technology is widely used in early warning, reconnaissance, strike, night vision and astronomical observation due to its passive detection, high precision and strong adaptability. In recent years, in order to meet the needs of large field of view, high resolution and miniaturization, the research focus has gradually shifted to large arrays, long lines and miniaturized detector components.

[0003] In infrared detectors, the electrical lead structure is an important packaging component, which is used to connect the detector chip and the external processing circuit and constitutes a part of the vacuum space. The traditional electrical lead structure usually adopts a ceramic lead ring, which is connected to the PCB board of the processing circuit through a pin. However, since a pad is set on one end side wall of the ceramic lead ring, the pad is connected to the detector chip, and a pin is set on the other side wall of the ceramic lead ring, the positions of the pin and the pad are fixed, and it is difficult to adjust the position of the detector in the axial direction. Therefore, there are certain difficulties in adapting to different point interfaces. Summary of the invention

[0004] The invention provides a highly integrated packaging structure and packaging method for an infrared detector, so as to solve the problem that the positions of pins and pads in the existing ceramic lead ring are difficult to be arbitrarily adjusted in the axial direction of the detector.

[0005] The highly integrated packaging structure and packaging method of an infrared detector of the present invention adopt the following technical solutions:

[0006] A highly integrated packaging structure of an infrared detector comprises a fixing sleeve, a lead rod and an adjusting component.

[0007] The fixing sleeve can be coaxially installed on the detector, and a mounting hole is provided on the fixing sleeve, and the axis of the mounting hole is parallel to the axis of the fixing sleeve; at least one lead rod is provided, and the lead rod can be plugged into the mounting hole, a soldering pad is provided at one end of the lead rod, and a pin is provided at the other end of the lead rod, and the length of the lead rod can be adjusted; the adjusting component can adjust the length of the lead rod, and the adjusting component can adjust the position of the lead rod on the fixing sleeve.

[0008] Furthermore, the lead rod includes a first section and a second section, the side wall of the first section is provided with a guide block, the side wall of the second section is provided with a guide groove, the length direction of the guide groove is consistent with the length direction of the lead rod, and the guide block is slidably arranged in the guide groove.

[0009] Furthermore, the adjustment component includes a first adjustment sleeve and a first transmission sleeve, the first transmission sleeve is arranged between the first section and the second section, one side wall of the first transmission sleeve is provided with a forward thread, and the other side wall of the first transmission sleeve is provided with a reverse thread, and threads are provided on the side walls of the first section and the second section that are close to each other, and the first transmission sleeve is engaged with the threads of the first section and the second section at the same time; the first adjustment sleeve is used to drive the first transmission sleeve to rotate.

[0010] Furthermore, the adjustment assembly also includes a second adjustment sleeve and a second transmission sleeve. The second transmission sleeve is threadedly connected to the fixed sleeve. When the second transmission sleeve slides along the axial direction of the fixed sleeve, it can drive the first transmission sleeve to move synchronously; the second adjustment sleeve is used to drive the second transmission sleeve to rotate.

[0011] Furthermore, a limiting groove is arranged on the second transmission sleeve, and a limiting ring is arranged on the first transmission sleeve. The limiting ring is arranged in the limiting groove, and the limiting ring can rotate in the limiting groove.

[0012] Furthermore, a plurality of lead rods can be provided, and the plurality of lead rods are evenly distributed around the fixing sleeve in the circumferential direction, and the pads on the plurality of lead rods can contact the detector chip at the same time.

[0013] Further, the first adjustment sleeve can be detached from the first transmission sleeve; and the second adjustment sleeve can be detached from the second transmission sleeve.

[0014] Furthermore, the first transmission sleeve is provided with multiple first holes, and the first adjustment sleeve is provided with multiple first insertion rods, and each first insertion rod can be inserted into a first socket; the second transmission sleeve is provided with multiple second holes, and the second adjustment sleeve is provided with multiple second insertion rods, and each second insertion rod can be inserted into a second socket.

[0015] Furthermore, a sealing member is provided on the fixing sleeve, and the sealing member is used to seal the gap between the side wall of the mounting hole and the lead rod.

[0016] A highly integrated packaging method for an infrared detector, using the highly integrated packaging structure of the infrared detector, comprises the following steps:

[0017] S100: Install the fixing sleeve at a preset position;

[0018] S200: Install the lead rod into the mounting hole;

[0019] S300: Using the adjustment component to adjust the length of the lead rod to a preset length;

[0020] S400: Use the adjustment assembly to adjust the position of the lead rod on the fixing sleeve.

[0021] The beneficial effects of the present invention are: a highly integrated packaging structure and packaging method of an infrared detector of the present invention, wherein the highly integrated packaging structure of the infrared detector includes a fixing sleeve, a lead rod and an adjustment component. When the lead rod is installed on the fixing sleeve, the fixing sleeve is first installed at a preset position, and then the lead rod is inserted into the mounting hole on the fixing sleeve. The lead rod can slide in the mounting hole in an initial state. The lead rod is set to the shortest state in the initial state. According to the distance requirement between the pad and the pin, the adjustment component is used to adjust the length of the lead rod, so that the length of the lead rod can be adjusted in time according to the requirement. Furthermore, after the length of the lead rod is adjusted to an appropriate length, the position of the lead rod on the fixing sleeve is adjusted again according to actual requirements, so that the lead rod meets the requirements of various points. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A schematic diagram of a highly integrated packaging structure of an infrared detector provided by an embodiment of the present invention;

[0024] Figure 2 A front view of a highly integrated packaging structure of an infrared detector provided by an embodiment of the present invention;

[0025] Figure 3 for Figure 2 Partial cross-sectional view along the AA direction;

[0026] Figure 4 A schematic structural diagram of a first transmission sleeve and a second transmission sleeve in a highly integrated packaging structure of an infrared detector provided by an embodiment of the present invention at one viewing angle;

[0027] Figure 5 A schematic structural diagram of a first transmission sleeve and a second transmission sleeve in a highly integrated packaging structure of an infrared detector provided by an embodiment of the present invention at another viewing angle;

[0028] Figure 6 A state diagram of a first adjusting sleeve rotating to adjust the length of a lead rod in a highly integrated packaging structure of an infrared detector provided by an embodiment of the present invention;

[0029] Figure 7 A state diagram of a second adjustment sleeve rotating to adjust the position of a lead rod in a highly integrated packaging structure of an infrared detector provided by an embodiment of the present invention.

[0030] In the figure: 110, fixing sleeve; 120, lead rod; 121, first section; 122, second section; 130, soldering pad; 140, pin; 210, first adjusting sleeve; 220, second adjusting sleeve; 230, first transmission sleeve; 240, second transmission sleeve; 250, connecting ring; 260, first socket; 270, second socket. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] like Figures 1 to 7 As shown, an embodiment of the present invention provides a highly integrated packaging structure of an infrared detector, including a fixing sleeve 110, a lead rod 120 and an adjustment component.

[0035] The fixing sleeve 110 can be coaxially mounted on the detector. The fixing sleeve 110 has a slightly stepped cylindrical shape. The connection between the fixing sleeve 110 and the detector is a fixed sealed connection, wherein the connection can be made by welding. A mounting hole is provided on the fixing sleeve 110. The mounting hole is provided at the step of the fixing sleeve 110. The mounting hole passes through the side wall of the fixing sleeve 110, and the axis of the mounting hole is parallel to the axis of the fixing sleeve 110.

[0036] At least one lead rod 120 is provided. In the present embodiment, one lead rod 120 is provided. The lead rod 120 can be plugged into the mounting hole. The axis of the lead rod 120 is parallel to the axis of the fixing sleeve 110. The lead rod 120 has a first end inside the fixing sleeve 110 and a second end outside the fixing sleeve 110. The first end of the lead rod 120 is provided with a pad 130. The second end of the lead rod 120 is provided with a pin 140. The pad 130 on the lead rod 120 can fully contact the chip of the detector. The pin 140 on the lead rod 120 can be connected to a data plug, so that the chip data of the detector can be transmitted outward. The length of the lead rod 120 can be adjusted, and the position of the lead rod 120 can be adjusted on the fixing sleeve 110. The adjusting component can adjust the length of the lead rod 120, and the adjusting component can adjust the position of the lead rod 120 on the fixing sleeve 110. By adjusting the lead rod 120 by the adjusting component, it is ensured that the lead rod 120 can adapt to different point interfaces in different states.

[0037] A highly integrated packaging structure of an infrared detector of the present invention, when installing a lead rod 120 on a fixing sleeve 110, firstly, the fixing sleeve 110 is installed at a preset position, and then, the lead rod 120 is inserted into the mounting hole on the fixing sleeve 110, and the lead rod 120 can slide in the mounting hole in an initial state, and the lead rod 120 is set to the shortest state in the initial state, and the length of the lead rod 120 is adjusted using an adjustment component according to the distance requirement between the pad 130 and the pin 140, so that the length of the lead rod 120 can be adjusted in time according to the requirement, and further, after the length of the lead rod 120 is adjusted to an appropriate length, the position of the lead rod 120 on the fixing sleeve 110 is adjusted again according to actual requirements, so that the lead rod 120 meets the requirements of various points.

[0038] In one embodiment, the lead rod 120 includes a first section 121 and a second section 122, the axes of the first section 121 and the second section 122 are arranged in parallel, the axes of the first section 121 and the second section 122 are both parallel to the axis of the fixing sleeve 110, and the first section 121 and the second section 122 are always in contact. A guide block is arranged on the side wall of the first section 121, and a guide groove is arranged on the side wall of the second section 122. The length direction of the guide groove is consistent with the length direction of the lead rod 120, and the guide block is slidably arranged in the guide groove. When the adjustment assembly adjusts the length of the lead rod 120, the first section 121 and the second section 122 of the lead rod 120 move relative to each other, that is, the guide block on the first section 121 slides along the guide groove on the second section 122.

[0039] In one embodiment, the adjustment assembly includes a first adjustment sleeve 210 and a first transmission sleeve 230. The first transmission sleeve 230 is disposed between the first section 121 and the second section 122. One side wall of the first transmission sleeve 230 is provided with a forward thread, and the other side wall of the first transmission sleeve 230 is provided with a reverse thread. The side walls of the first section 121 and the second section 122 that are close to each other are both provided with threads. In a specific setting, a mounting groove is provided at the end of the first section 121 of the lead rod 120. The mounting groove is arranged in an annular shape. The threads on the first section 121 are arranged on the side wall of the mounting groove, and the threads on the second section 122 are arranged on the side wall close to the first section 121. The first transmission sleeve 230 is threadedly engaged with the first section 121 and the second section 122 at the same time. When the first transmission sleeve 230 rotates, the first section 121 and the second section 122 move relative to each other, and the length of the lead rod 120 changes. The first adjusting sleeve 210 is used to drive the first transmission sleeve 230 to rotate. When the length of the lead rod 120 needs to be adjusted, the first adjusting sleeve 210 can be used to drive the first transmission sleeve 230 to rotate.

[0040] In one embodiment, the adjustment assembly further includes a second adjustment sleeve 220 and a second transmission sleeve 240, the second transmission sleeve 240 is coaxially arranged inside the fixed sleeve 110, the second transmission sleeve 240 abuts against the inner wall of the fixed sleeve 110, the outer wall of the second transmission sleeve 240 is provided with a thread, the inner wall of the fixed sleeve 110 is provided with a thread, the second transmission sleeve 240 is threadedly connected to the fixed sleeve 110, when the second transmission sleeve 240 rotates, the second transmission sleeve 240 can move along the axial direction of the fixed sleeve 110, and when the second transmission sleeve 240 moves along the axial direction of the fixed sleeve 110, 10 slides in the axial direction, the movement of the second transmission sleeve 240 can drive the first transmission sleeve 230 to move synchronously. When the first transmission sleeve 230 moves, the first transmission sleeve 230 drives the first section 121 and the second section 122 to move synchronously along the axial direction of the fixed sleeve 110, and further adjusts the position of the lead rod 120 on the fixed sleeve 110. The second adjusting sleeve 220 is used to drive the second transmission sleeve 240 to rotate. When the position of the lead rod 120 needs to be adjusted, the second transmission sleeve 240 can be driven to rotate by the second adjusting sleeve 220.

[0041] In one embodiment, a limiting groove is provided on the second transmission sleeve 240, and a limiting ring is provided on the first transmission sleeve 230. The limiting ring is provided in the limiting groove, and the limiting ring can rotate in the limiting groove. In a specific setting, the second transmission sleeve 240 is coaxially sleeved on the outside of the first transmission sleeve 230, and a connecting ring 250 is coaxially fixedly provided on the upper end of the first transmission sleeve 230. The limiting ring is fixedly connected to the connecting ring 250. By providing the connecting ring 250, space can be reserved for the length change of the lead rod 120. When the first transmission sleeve 230 is driven to rotate by the first adjustment sleeve 210, the first transmission sleeve 230 can rotate relative to the second transmission sleeve 240. When the second transmission sleeve 240 is driven to rotate by the second adjustment sleeve 220, the second transmission sleeve 240 can rotate relative to the first transmission sleeve 230. When the second transmission sleeve 240 moves along the axial direction of the fixed sleeve 110, the second transmission sleeve 240 can drive the first transmission sleeve 230 to move synchronously along the axial direction of the fixed sleeve 110.

[0042] In one embodiment, a plurality of lead rods 120 can be provided, and the plurality of lead rods 120 are evenly distributed around the fixed sleeve 110, and the pads 130 on the plurality of lead rods 120 can contact the detector chip at the same time. When a plurality of lead rods 120 are provided, a plurality of mounting holes are provided on the fixed sleeve 110 at the same time, and each lead rod 120 is provided corresponding to a mounting hole. When the number or position of the pins of the detector chip changes, the number of lead rods 120 is adaptively adjusted to ensure that the data of the detector chip can be fully output. Furthermore, the initial lengths of the plurality of lead rods 120 are the same, and the positions of each lead rod 120 on the fixed sleeve 110 are consistent, then the adjustment component can adjust the lengths of the plurality of lead rods 120 at the same time, and the adjustment component can adjust the positions of the plurality of lead rods 120 at the same time.

[0043] In one embodiment, the first adjustment sleeve 210 can be detached from the first transmission sleeve 230. After the length of the lead rod 120 is adjusted, the first adjustment sleeve 210 is detached from the first transmission sleeve 230 to prevent the first adjustment sleeve 210 from affecting the installation of the fixed sleeve 110 on the detector. The second adjustment sleeve 220 can be detached from the second transmission sleeve 240. After the position of the lead rod 120 is adjusted, the second adjustment sleeve 220 is detached from the second transmission sleeve 240 to prevent the second adjustment sleeve 220 from affecting the installation of the fixed sleeve 110 on the detector.

[0044] In one embodiment, the first transmission sleeve 230 is provided with a plurality of first insertion holes 260, and the first adjustment sleeve 210 is provided with a plurality of first insertion rods, each of which can be inserted into a first insertion hole 260. When the first transmission sleeve 230 needs to be driven, each first insertion rod on the first adjustment sleeve 210 is simultaneously inserted into a first insertion hole 260, and the first adjustment sleeve 210 is rotated, and the first adjustment sleeve 210 rotates synchronously with the first transmission sleeve 230. The second transmission sleeve 240 is provided with a plurality of second insertion holes 270, and the second adjustment sleeve 220 is provided with a plurality of second insertion rods, each of which can be inserted into a second insertion hole 270. When the second transmission sleeve 240 needs to be driven, each second insertion rod on the second adjustment sleeve 220 is simultaneously inserted into a second insertion hole 270, and the second adjustment sleeve 220 is rotated, and the second adjustment sleeve 220 rotates synchronously with the second transmission sleeve 240.

[0045] In one embodiment, the first insertion hole 260 can be disposed on the connecting ring 250 .

[0046] In one of the embodiments, a seal is provided on the fixing sleeve 110, and the seal is used to seal the gap between the side wall of the mounting hole and the lead rod 120. For example, the seal can be welded by welding the gap between the side wall of the mounting hole and the lead rod 120 using a welding agent. After the length and position of the lead rod 120 are adjusted, the lead rod 120 does not need to continue to move in the mounting hole. In this state, the seal is used to seal the gap between the mounting hole and the lead rod 120 to ensure that the inside of the detector is in a closed environment.

[0047] In one embodiment, when the lead rod 120 is fixed to the fixed sleeve 110 by using the seal, the first section 121 and the second section 122 of the lead rod 120 are simultaneously threadedly connected with the first transmission sleeve 230. When the first transmission sleeve 230 does not rotate, the first section 121 and the second section 122 of the lead rod 120 are both in a relatively stable state, preventing the lead rod 120 from being displaced during the process of using the seal to fix the lead rod 120 on the fixed sleeve 110. Further, the first section 121 and the second section 122 of the lead rod 120 are simultaneously threadedly connected with the first transmission sleeve 230. If the pin 140 is pulled by an external force, the first section 121 and the second section 122 are simultaneously threadedly connected with the first transmission sleeve 230 to withstand a part of the pulling force. After the seal fixes the lead rod 120 to the fixed sleeve 110, the lead rod 120 is prevented from being displaced and causing the seal to fail.

[0048] A highly integrated packaging method for an infrared detector, using the highly integrated packaging structure of the infrared detector, comprises the following steps:

[0049] S100: Install the fixing sleeve 110 at a preset position. Specifically, during the assembly process of the infrared detector, the fixing sleeve 110 is fixedly installed at a preset position of the infrared detector.

[0050] S200: Install the lead rod 120 in the mounting hole. According to the specifications of the detector chip, the number of the lead rods 120 is adaptively selected, and the lead rods 120 are installed in the mounting hole by plugging. The lead rods 120 can move in the mounting hole.

[0051] S300: Use an adjustment component to adjust the length of the lead rod 120 to a preset length. Through the adjustment of the adjustment component, the lead rod 120 can meet actual requirements, that is, the pad 130 on the lead rod 120 can fully contact the detector chip.

[0052] S400: Use the adjustment component to adjust the position of the lead rod 120 on the fixing sleeve 110. Through the adjustment of the adjustment component, the lead rod 120 can adapt to interfaces at different points on the premise of fully contacting the detector chip.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly integrated packaging structure of an infrared detector, characterized in that: include: A fixing sleeve, which can be coaxially mounted on the detector, and a mounting hole is provided on the fixing sleeve, and the axis of the mounting hole is parallel to the axis of the fixing sleeve; A lead rod, at least one lead rod is provided, the lead rod can be plugged into the mounting hole, a solder pad is provided at one end of the lead rod, a pin is provided at the other end of the lead rod, and the length of the lead rod can be adjusted; An adjusting component, wherein the adjusting component can adjust the length of the lead rod and the position of the lead rod on the fixing sleeve; The lead rod comprises a first section and a second section, the side wall of the first section is provided with a guide block, the side wall of the second section is provided with a guide groove, the length direction of the guide groove is consistent with the length direction of the lead rod, and the guide block is slidably arranged in the guide groove; The adjustment component includes a first adjustment sleeve and a first transmission sleeve. The first transmission sleeve is arranged between the first section and the second section. One side wall of the first transmission sleeve is provided with a forward thread, and the other side wall of the first transmission sleeve is provided with a reverse thread. The side walls of the first section and the second section that are close to each other are both provided with threads, and the first transmission sleeve is engaged with the threads of the first section and the second section at the same time; the first adjustment sleeve is used to drive the first transmission sleeve to rotate.

2. The highly integrated packaging structure of infrared detector according to claim 1, characterized in that: The adjustment assembly also includes a second adjustment sleeve and a second transmission sleeve. The second transmission sleeve is threadedly connected to the fixed sleeve. When the second transmission sleeve slides along the axial direction of the fixed sleeve, it can drive the first transmission sleeve to move synchronously. The second adjustment sleeve is used to drive the second transmission sleeve to rotate.

3. The highly integrated packaging structure of infrared detector according to claim 2, characterized in that: The second transmission sleeve is provided with a limiting groove, the first transmission sleeve is provided with a limiting ring, the limiting ring is arranged in the limiting groove, and the limiting ring can rotate in the limiting groove.

4. The highly integrated packaging structure of infrared detector according to claim 1, characterized in that: A plurality of lead rods can be provided, and the plurality of lead rods are evenly distributed around the fixing sleeve in the circumferential direction, and the pads on the plurality of lead rods can contact the detector chip at the same time.

5. The highly integrated packaging structure of infrared detector according to claim 2, characterized in that: The first adjusting sleeve can be detached from the first transmission sleeve; the second adjusting sleeve can be detached from the second transmission sleeve.

6. The highly integrated packaging structure of infrared detector according to claim 5, characterized in that: The first transmission sleeve is provided with a plurality of first insertion holes, and the first adjustment sleeve is provided with a plurality of first insertion rods, each of which can be inserted into a first insertion hole; the second transmission sleeve is provided with a plurality of second insertion holes, and the second adjustment sleeve is provided with a plurality of second insertion rods, each of which can be inserted into a second insertion hole.

7. The highly integrated packaging structure of infrared detector according to claim 1, characterized in that: A sealing member is arranged on the fixing sleeve, and the sealing member is used for sealing the gap between the side wall of the mounting hole and the lead rod.

8. A highly integrated packaging method for an infrared detector, using the highly integrated packaging structure for an infrared detector according to any one of claims 1 to 7, characterized in that: The following steps are involved: S100: Install the fixing sleeve at a preset position; S200: Install the lead rod into the mounting hole; S300: Using the adjustment component to adjust the length of the lead rod to a preset length; S400: Use the adjustment assembly to adjust the position of the lead rod on the fixing sleeve.

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