Differential part dismounting device for compact arrangement of LRMDP socket connector

Abstract

The invention discloses a dismounting device for a compactly arranged differential part of an LRMDP socket connector, and belongs to the technical field of connectors, the dismounting device comprises a lower frame body used for positioning the differential part, the lower frame body is provided with a lower pore plate, the lower frame body is slidably connected with an upper frame body, the upper frame body is provided with an upper pore plate, and the lower frame body is fixedly connected with a guide column. A sliding groove is formed in the upper frame body, a first long through hole is formed in the sliding groove, the sectional area of the first long through hole is larger than that of the guide column, the first long through hole is matched with the guide column so as to guide relative movement of the lower frame body and the upper frame body, a first inclined face is formed in the sliding groove, and the outer side wall of the guide column is sleeved with a wedge block. The wedge-shaped block is provided with a second inclined surface, the first inclined surface is in contact fit with the second inclined surface, and the wedge-shaped block moves towards the direction close to the lower frame body, so that after the hole of the upper pore plate and the hole of the lower pore plate are staggered and the thin shaft of the differential contact piece is clamped, the lower frame body is driven to be far away from the printed board so as to disassemble the differential part.

Description

Technical Field

[0001] The invention belongs to the technical field of connectors, and in particular relates to a differential part disassembly device of a compactly arranged LRMDP socket connector. Background Art

[0002] The LRMDP connector is a standard connector used in the field replaceable module (LRM) of the integrated avionics system (IMA). It is suitable for SEM-D, SEM-E, and ASAAC modules, and can realize multiple signal transmissions such as RF, differential, optical, and power. The differential part of the LRMDP socket connector is connected by pressing the fisheye with the signal hole of the printed circuit board. When the differential part of the connector or the printed circuit board is damaged and needs to be repaired or replaced, the differential part needs to be disassembled, especially when the LRMDP socket connectors on the backplane are arranged compactly with a small spacing, only one of the differential parts needs to be disassembled.

[0003] At present, the known disassembly method is to use a tool to push out the differential part of the connector on the back of the printed circuit board. This method will cause the fisheye of the differential part to deform during the disassembly process, making it damaged and unable to be used again.

[0004] Therefore, it is urgent to design a LRMDP socket connector differential part disassembly device to solve the above-mentioned problem of fisheye deformation during the disassembly process. Summary of the invention

[0005] In order to solve the technical problem of fisheye deformation during disassembly mentioned in the background technology, a differential part disassembly device of a compactly arranged LRMDP socket connector is provided to solve the above problem.

[0006] To achieve the above-mentioned purpose, the specific technical solution of the differential part disassembly device of the compactly arranged LRMDP socket connector of the present invention is as follows: A differential part disassembly device for compactly arranged LRMDP socket connectors, characterized in that it includes a lower frame for positioning the differential part, a lower orifice plate is installed on the lower frame, an upper frame is slidably connected to the lower frame, an upper orifice plate is installed on the upper frame, a guide column is fixedly connected to the lower frame, a sliding groove is provided on the upper frame, a first long through hole is provided on the sliding groove, the cross-sectional area of ​​the first long through hole is larger than the cross-sectional area of ​​the guide column, the first long through hole cooperates with the guide column to guide the relative movement of the lower frame and the upper frame, a first inclined surface is provided on the sliding groove, a wedge block is sleeved on the outer wall of the guide column, a second inclined surface is provided on the wedge block, the first inclined surface is in contact with the second inclined surface, the wedge block moves toward the lower frame, so that the upper frame slides relative to the lower frame, so that the holes of the upper orifice plate and the holes of the lower orifice plate are staggered and the thin shaft of the differential contact is clamped, and then the lower frame is driven away from the printed circuit board to disassemble the differential part.

[0007] Furthermore, a first screw hole is provided on the guide column, and a first bolt passes through the wedge block and is screwed to the first screw hole. The first bolt is rotated to move the wedge block toward the lower frame.

[0008] Furthermore, a washer is provided between the end of the first bolt and the wedge block to limit the position of the wedge block.

[0009] Furthermore, the guide column is columnar, the length of the first long through hole in the sliding direction is greater than the diameter of the guide column, and the length of the first long through hole in the vertical sliding direction is adapted to the diameter of the guide column to limit the sliding direction of the upper frame and the lower frame.

[0010] Furthermore, the lower hole plate and the lower frame are screwed together by a second bolt, and the upper hole plate and the upper frame are screwed together by a third bolt. A first avoidance hole is provided on the lower hole plate to avoid the third bolt when the upper frame and the lower frame slide, and a second avoidance hole is provided on the upper hole plate to avoid the second bolt when the upper frame and the lower frame slide.

[0011] Furthermore, the holes formed on the upper orifice plate and the lower orifice plate match the thin shafts of the differential contact pieces.

[0012] Furthermore, it also includes a base plate, which is in the shape of a hollow frame. The shape of the base plate matches the shape of the differential part, so that the base plate abuts against the printed circuit board. A second screw hole is opened on the lower frame, and a pull-out screw is screwed into the second screw hole. The end of the screw rod of the pull-out screw abuts against the base plate. When the pull-out screw is rotated, the pull-out screw abuts against the base plate and drives the lower frame away from the printed circuit board.

[0013] Furthermore, the second screw holes are centrally symmetrically arranged at the edge of the lower frame.

[0014] Furthermore, a third avoidance hole is provided on the upper frame to avoid the extraction screw.

[0015] Furthermore, a handle is installed on the upper frame.

[0016] The differential part disassembly device of the LRMDP socket connector with compact arrangement of the present invention has the following advantages: The present invention drives the upper orifice plate and the lower orifice plate to alternately clamp the differential contact pieces by a wedge block to pull out the differential part, thereby preventing the fisheye from generating new deformation during the disassembly process, and can separately disassemble the specified connector differential part on the backplane where multiple LRMDP socket connectors are compactly arranged without disassembling the adjacent LRMDP socket connectors.

[0017] The invention provides a pulling screw and realizes the disassembly of the differential part in a manner that the pulling screw presses against the bottom plate and then reacts on the lower frame, so that the lower frame moves away from the printed board, and no new damage is caused to the printed board during the disassembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the differential structure of the LRMDP socket connector of the present invention.

[0019] Figure 2 It is a schematic structural diagram of the differential portion disassembly device of the compactly arranged LRMDP socket connector of the present invention.

[0020] Figure 3 It is a schematic diagram of the upper frame structure of the present invention.

[0021] Figure 4 It is a schematic diagram of the lower frame structure of the present invention.

[0022] Figure 5 A cross-sectional view of a differential portion disassembly device of a compactly arranged LRMDP socket connector of the present invention.

[0023] Explanation of marks in the figure: 1. Differential part; 101. Fisheye; 102. Differential contact piece; 103. Thin shaft; 2. Lower frame; 201. Lower orifice plate; 202. Guide column; 2021. First screw hole; 203. Second bolt; 204. Second screw hole; 205. First avoidance hole; 3. Upper frame; 301. Upper orifice plate; 302. Sliding groove; 303. First long through hole; 304. First inclined surface; 305. Third bolt; 306. Second avoidance hole; 307. Third avoidance hole; 4. Wedge block; 401. Second inclined surface; 5. First bolt; 6. Washer; 7. Bottom plate; 8. Extraction screw; 9. Handle. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0025] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0026] Please refer to the attached Figure 1 To Attachment Figure 5 The differential part disassembly device of the LRMDP socket connector of the present invention is described.

[0027] The differential part of the existing LRMDP socket connector is as follows Figure 1 As shown, it includes a fisheye 101 and a differential contact 102, wherein the differential contact 102 is provided with a thin shaft 103. Currently, the existing known disassembly method uses a tool to push out the connector differential part 1 on the side of the fisheye 101. This method will cause the fisheye 101 of the differential part 1 to deform during the disassembly process, making it damaged and unable to be used again.

[0028] Therefore, the present invention provides a disassembly device for the differential part 1 of the LRMDP socket connector with compact arrangement, such as Figure 1-Figure 3 As shown, it includes a lower frame 2 for positioning the differential part 1, a lower orifice plate 201 is installed on the lower frame 2, an upper frame 3 is slidably connected to the lower frame 2, an upper orifice plate 301 is installed on the upper frame 3, a guide column 202 is fixedly connected to the lower frame 2, a sliding groove 302 is provided on the upper frame 3, a first long through hole 303 is provided on the sliding groove 302, the cross-sectional area of ​​the first long through hole 303 is larger than the cross-sectional area of ​​the guide column 202, and the first long through hole 303 cooperates with the guide column 202 to guide the relative movement of the lower frame 2 and the upper frame 3, as shown in FIG. Figure 4 As shown, a first inclined surface 304 is provided on the sliding groove 302, a wedge block 4 is sleeved on the outer wall of the guide column 202, a second inclined surface 401 is provided on the wedge block 4, the first inclined surface 304 contacts and cooperates with the second inclined surface 401, and the wedge block 4 moves toward the lower frame 2, so that the upper frame 3 slides relative to the lower frame 2, so that the holes of the upper orifice plate 301 and the holes of the lower orifice plate 201 are staggered and the thin shaft 103 of the differential contact piece 102 is clamped, and then the lower frame 2 is driven away from the printed circuit board to disassemble the differential part 1. Specifically, the lower orifice plate 201 and the upper orifice plate 301 are stacked and located at the position of the thin shaft 103, and the wedge block 4 is driven to move toward the printed circuit board, so that the upper frame 3 drives the upper orifice plate 301 to move, so that the holes of the lower orifice plate 201 and the holes of the upper orifice plate 301 are staggered to clamp the thin shaft 103 of the differential contact 102, so that the lower orifice plate 201 and the upper orifice plate 301 are abutted against the differential contact 102, and the operator operates the lower frame 2 to move away from the printed circuit board to disassemble the differential part 1.

[0029] As a preferred example, Figure 2 and Figure 4 As shown, a first screw hole 2021 is provided on the guide column 202, and a first bolt 5 passes through the wedge block 4 and is screwed to the first screw hole 2021. The first bolt 5 is rotated to move the wedge block 4 toward the lower frame 2. Specifically, the contact area between the first inclined surface 304 and the second inclined surface 401 is controlled by the first bolt 5, so as to accurately control the displacement of the wedge block 4, and further accurately control the holes of the lower orifice plate 201 and the holes of the upper orifice plate 301 to stagger and clamp the thin shaft 103 of the differential contact piece 102.

[0030] As a preferred example, Figure 2 As shown, a washer 6 is provided between the end of the first bolt 5 and the wedge block 4 to limit the wedge block 4. Specifically, the first bolt 5 passes through the washer 6 and the wedge block 4 and is screwed to the guide column 202 in sequence, so that the washer 6 prevents the wedge block 4 from being separated from the upper frame 3 in the pulling direction.

[0031] As a preferred example, Figure 3 and Figure 4 As shown, the guide column 202 is columnar, the length of the first long through hole 303 in the sliding direction is greater than the diameter of the guide column 202, and the length of the first long through hole 303 in the vertical sliding direction is adapted to the diameter of the guide column 202 to limit the sliding direction of the upper frame 3 and the lower frame 2. Specifically, the length of the first long through hole 303 in the vertical sliding direction can just be inserted into the guide column 202, thereby limiting the lower frame 2 and the upper frame 3 to slide relative to each other only on the same straight line.

[0032] As a preferred example, Figure 3 and Figure 4 As shown, the lower perforated plate 201 is screwed to the lower frame 2 by the second bolt 203, and the upper perforated plate 301 is screwed to the upper frame 3 by the third bolt 305. The lower perforated plate 201 is provided with a first avoidance hole 205 to avoid the third bolt 305 when the upper frame 3 and the lower frame 2 slide, and the upper perforated plate 301 is provided with a second avoidance hole 306 to avoid the second bolt 203 when the upper frame 3 and the lower frame 2 slide.

[0033] Preferably, the holes formed on the upper orifice plate 301 and the lower orifice plate 201 match the thin axis 103 of the differential contact 102. Specifically, the upper orifice plate 301 and the lower orifice plate 201 are provided with the same number and arrangement of holes as the 288 differential contacts 102 in a single cavity of the LRMDP socket connector.

[0034] As a preferred example, Figure 1 As shown, the differential part disassembly device of the compactly arranged LRMDP socket connector also includes a bottom plate 7, which is in the shape of a hollow frame. The shape of the bottom plate 7 matches the shape of the differential part 1, so that the bottom plate 7 abuts against the printed circuit board. A second screw hole 204 is opened on the lower frame 2, and a pull-out screw 8 is screwed into the second screw hole 204. The end of the screw rod of the pull-out screw 8 abuts against the bottom plate 7. The pull-out screw 8 is rotated, and the pull-out screw 8 abuts against the bottom plate 7 to drive the lower frame 2 away from the printed circuit board. Specifically, the bottom plate 7 is located between the printed circuit board and the pull-out screw 8, so as to protect the printed circuit board. The material of the bottom plate 7 is preferably a rigid material, such as an iron plate or a steel plate.

[0035] Preferably, the second screw holes 204 are centrally symmetrically arranged at the edge of the lower frame 2, so that each extraction screw 8 can evenly separate the differential portion 1 from the printed circuit board.

[0036] As a preferred example, Figure 3 As shown, a handle 9 is installed on the upper frame 2 to facilitate the operator to install, disassemble and remove.

[0037] As a preferred example, Figure 3 As shown, the upper frame 3 is provided with a third avoidance hole 307 to avoid the extraction screw 8.

[0038] The use steps of the present invention are: S1, turning the first bolt 5 to adjust the position of the wedge block 4, thereby adjusting the holes of the upper orifice plate 301 and the holes of the lower orifice plate 201, so that the holes of the upper orifice plate 301 and the holes of the lower orifice plate 201 overlap; S2, first put the bottom plate 7 on the differential part 1, and then put the upper orifice plate 301 and the lower orifice plate 201 on the differential contact piece 102, so that the upper orifice plate 301 and the lower orifice plate 201 are located at the thin axis 103 of the differential contact piece 102; S3, rotating the first bolt 5, the wedge block 4 moves toward the printed circuit board, and the wedge block 4 presses the first inclined surface 304 through the second inclined surface 401, so that the upper frame 3 slides relative to the lower frame 2, and then the upper orifice plate 301 and the lower orifice plate 201 alternately clamp the thin shaft 103 to lock the differential part 1; S4, rotating the extraction screws 8 step by step, so that the lower frame 2 and the upper frame 3 thereon move outward, and completely pulling out the fisheye 101 of the differential part 1 from the signal hole of the printed circuit board.

[0039] In a specific embodiment, the width of the lower frame 2 and the base plate 7 is 25 mm, which is equal to the width of the LRMDP socket connector, and the width of the upper frame 3 is 23.4 mm, which is smaller than the width of the LRMDP socket connector. The same width dimension as the LRMDP socket connector can ensure that the device is not interfered with by other nearby connectors when installed on the differential part 1.

[0040] The present invention drives the upper orifice plate 301 and the lower orifice plate 201 to alternately clamp the differential contact 102 by the wedge block 4 to pull out the differential part 1, so that the fisheye 101 does not produce new deformation during the disassembly process, and the specified connector differential part 1 can be separately disassembled on the backplane of multiple compactly arranged LRMDP socket connectors without disassembling the adjacent LRMDP socket connectors.

[0041] The present invention provides a pull-out screw 8 and the pull-out screw 8 resists the bottom plate 7 and then reacts the lower frame 2, so that the lower frame 2 moves away from the printed circuit board, thereby realizing the disassembly of the differential part 1, and no new damage is caused to the printed circuit board during the disassembly process.

[0042] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A differential part disassembly device for compactly arranged LRMDP socket connectors, characterized in that: The invention comprises a lower frame for positioning a differential part, a lower orifice plate is installed on the lower frame, an upper frame is slidably connected to the lower frame, an upper orifice plate is installed on the upper frame, a guide column is fixedly connected to the lower frame, a sliding groove is provided on the upper frame, a first long through hole is provided on the sliding groove, the cross-sectional area of ​​the first long through hole is larger than the cross-sectional area of ​​the guide column, the first long through hole cooperates with the guide column to guide the relative movement of the lower frame and the upper frame, a first inclined surface is provided on the sliding groove, a wedge block is sleeved on the outer wall of the guide column, a second inclined surface is provided on the wedge block, the first inclined surface is in contact with the second inclined surface, the wedge block moves toward the direction approaching the lower frame, so that the upper frame slides relative to the lower frame, so that the holes of the upper orifice plate and the holes of the lower orifice plate are staggered and the thin shaft of the differential contact is clamped, and then the lower frame is driven away from the printed circuit board to disassemble the differential part.

2. The differential portion disassembly device for compactly arranged LRMDP socket connectors according to claim 1, characterized in that: A first screw hole is provided on the guide column, and a first bolt passes through the wedge block and is screwed with the first screw hole. The first bolt is rotated to move the wedge block toward the lower frame body.

3. The differential portion disassembly device for compactly arranged LRMDP socket connectors according to claim 2, characterized in that: A washer is provided between the end of the first bolt and the wedge block to limit the wedge block.

4. The differential portion disassembly device for compactly arranged LRMDP socket connectors according to claim 1, characterized in that: The guide column is columnar, the length of the first long through hole in the sliding direction is greater than the diameter of the guide column, and the length of the first long through hole in the vertical sliding direction is adapted to the diameter of the guide column to limit the sliding direction of the upper frame and the lower frame.

5. The differential portion disassembly device for compactly arranged LRMDP socket connectors according to claim 1, characterized in that: The lower hole plate is screwed to the lower frame by a second bolt, the upper hole plate is screwed to the upper frame by a third bolt, the lower hole plate is provided with a first avoidance hole to avoid the third bolt when the upper frame and the lower frame slide, and the upper hole plate is provided with a second avoidance hole to avoid the second bolt when the upper frame and the lower frame slide.

6. The differential portion disassembly device for compactly arranged LRMDP socket connectors according to claim 1, characterized in that: The holes formed in the upper and lower orifice plates match the thin shafts of the differential contacts.

7. The differential portion disassembly device for compactly arranged LRMDP socket connectors according to claim 1, characterized in that: It also includes a bottom plate, which is in the shape of a hollow frame. The shape of the bottom plate matches the shape of the differential part, so that the bottom plate abuts against the printed circuit board. A second screw hole is opened on the lower frame, and a pull-out screw is screwed in the second screw hole. The screw end of the pull-out screw abuts against the bottom plate. When the pull-out screw is rotated, the pull-out screw abuts against the bottom plate and drives the lower frame away from the printed circuit board.

8. The differential portion disassembly device for compactly arranged LRMDP socket connectors according to claim 7, characterized in that: The second screw holes are centrally symmetrically arranged at the edge of the lower frame.

9. The differential part disassembly device of the compactly arranged LRMDP socket connector according to claim 7 or 8, characterized in that: The upper frame is provided with a third avoidance hole to avoid the extraction screw.

10. The differential part disassembly device of the compactly arranged LRMDP socket connector according to claim 1, characterized in that: A handle is installed on the upper frame.

Images