Structure of VPX module locking mechanism

Abstract

The utility model relates to the field of modularized cases, and discloses a VPX module locking mechanism structure which comprises a lower cavity shell, a PCBA board and an upper cover, the PCBA board is fixed in the lower cavity shell through the upper cover, ribs are integrally formed on the two sides of the lower cavity shell, locking pieces are arranged at the ends of the ribs, the locking pieces are used for fixing the lower cavity shell in a case, and the PCBA board is fixed in the lower cavity shell through the upper cover. And heat dissipation holes penetrating through the side wall of the lower cavity shell are formed in the ribs. The VPX module has the advantages that the ribs are provided with the heat dissipation holes, air cooling heat dissipation can be directly carried out on the interior of the VPX module, the locking pieces are arranged at the two ends of the ribs, the heat dissipation holes are prevented from being blocked, the air inlet area is greatly increased, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of modular chassis, in particular to a structure of a VPX module locking mechanism. Background Art

[0002] The VPX module is generally installed and fixed in the chassis in two ways: direct insertion and snap-on installation and fixing, and wedge block locking. The plug-in module installed and fixed by direct insertion and snap-on installation has limited vibration resistance and conductive heat dissipation performance, and cannot meet the use requirements of higher environments. In the use environment requiring high vibration resistance and high heat dissipation, the plug-in module is installed and fixed by wedge block locking.

[0003] The Chinese utility model patent (authorization announcement number: CN209458229U name: a wedge-shaped locking mechanism for an anti-locking VPX module) includes a rotating screw, a front slider, a rear slider and a mounting block. The front and rear ends of the mounting block are respectively the first and second wedge surface structures. The ends of the front and rear sliders facing the mounting block are respectively the third and fourth wedge surface structures. The first and second compression springs providing preload force are respectively arranged between the first and third wedge surface structures and between the second and fourth wedge surface structures. The first and second compression springs are sleeved on the rotating screw. The front and middle parts of the rotating screw are the bare rod section, and the rear end of the rotating screw is the threaded section. The front slider is A first through hole and a first accommodating hole are provided in the middle of the block, a second through hole and a second accommodating hole are provided in the middle of the rear slider, an eccentric hole is provided in the middle of the mounting block, and third and fourth accommodating holes for placing the first and second compression springs are provided at both ends of the mounting block. A locking component for preventing the rear slider from falling off is also provided at the tail end of the rotating screw rod. However, the structure in which several wedge-shaped blocks are used to form an integral wedge-shaped locking strip for fixing the structure prevents cold air from entering the interior of the VPX module during direct air cooling, resulting in the inability to directly perform air cooling and heat dissipation inside the VPX module, thereby reducing the heat dissipation efficiency. Utility Model Content

[0004] The utility model aims to provide a structure of a VPX module locking mechanism to overcome the shortcomings of the prior art.

[0005] The purpose of the utility model is achieved through the following technical solutions: a structure of a VPX module locking mechanism, including a lower cavity shell, a PCBA board and an upper cover, the PCBA board is fixed in the lower cavity shell through the upper cover, ribs are integrally formed on both sides of the lower cavity shell, locking pieces are provided at the ends of the ribs, the locking pieces are used to fix the lower cavity shell in the chassis, and the ribs are provided with heat dissipation holes that penetrate the side walls of the lower cavity shell.

[0006] Preferably, the rib is further provided with a weight-reducing hole, which is a through hole and extends from the bottom of the lower chamber shell to the upper cover.

[0007] Preferably, the locking member includes a slider, a trapezoidal block and a bolt. The trapezoidal block is provided with an oblong hole passing through its two waists, and the oblong hole extends along the waistline of the trapezoidal block. The bolt passing through the oblong hole is used to clamp the rib and the slider on the two waists of the trapezoidal block. The clamping surfaces of the rib and the trapezoidal block, and the clamping surfaces of the slider and the trapezoidal block are all inclined toward the upper cover.

[0008] Preferably, the rib is provided with a through hole A passing through both ends thereof, the trapezoidal blocks are provided at both ends of the through hole A, a threaded hole is provided on the sliding block away from the bolt head, the bolt is screwed into the threaded hole, and a through hole B is provided on the sliding block close to the bolt head, the bolt is inserted into the through hole B.

[0009] Preferably, a boss is integrally formed at the bottom of the sliding block having the threaded hole, and a slide groove corresponding to the boss is formed on the lower cavity shell, and the slide groove extends along the axial centerline direction of the bolt.

[0010] Preferably, a limit nut is screwed onto the bolt, and the nut is used to prevent the slider with the threaded hole from being separated from the bolt.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The ribs are provided with heat dissipation holes, which can directly cool the inside of the VPX module with air, and the locks are set at both ends of the ribs to avoid obstruction to the heat dissipation holes, greatly increasing the air inlet area and improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the installation structure of the lock;

[0017] Figure 5 It is a structural schematic diagram of a trapezoidal block;

[0018] In the figure, 1-lower cavity shell, 2-PCBA board, 3-upper cover, 4-ribs, 5-heat dissipation holes, 6-weight reduction holes, 7-slide blocks, 8-trapezoidal blocks, 9-bolts, 10-oblong holes, 11-bosses, 12-slide grooves, and 13-limiting nuts. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme 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. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply 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 on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1-4 As shown, a structure of a VPX module locking mechanism includes a lower cavity shell 1, a PCBA board 2 and an upper cover 3. The PCBA board 2 is fixed in the lower cavity shell 1 through the upper cover 3. Ribs 4 are integrally formed on both sides of the lower cavity shell 1. Locking pieces are provided at the ends of the ribs 4. The locking pieces are used to fix the lower cavity shell 1 in the chassis. Heat dissipation holes 5 that penetrate the side walls of the lower cavity shell 1 are provided on the ribs 4. The heat dissipation holes 5 are provided on the ribs 4, and the inside of the VPX module can be directly cooled by air. The locking pieces are provided at both ends of the ribs 4 to avoid obstruction to the heat dissipation holes 5, thereby greatly increasing the air intake area and improving the heat dissipation efficiency.

[0026] In this embodiment, if Figure 3 and 4 As shown, the rib 4 is also provided with a weight-reducing hole 6, which is a through hole extending from the bottom of the lower chamber shell 1 to the upper cover 3, thereby reducing the weight of the entire module and making disassembly and assembly easier.

[0027] In this embodiment, if Figure 4 and 5 As shown, the locking member includes a slider 7, a trapezoidal block 8 and a bolt 9. The trapezoidal block 8 is provided with an oblong hole 10 passing through its two waists. The oblong hole 10 extends along the waistline of the trapezoidal block 8. The bolt 9 passing through the oblong hole 10 is used to clamp the rib 4 and the slider 7 on the two waists of the trapezoidal block 8. The clamping surfaces of the rib 4 and the trapezoidal block 8, and the clamping surfaces of the slider 7 and the trapezoidal block 8 are all inclined toward the upper cover 3. When the trapezoidal block 8 locks the box body, since the trapezoidal block 8 is lifted by the cooperation of the inclined surfaces on both sides, it only presses against the chassis upward in the vertical direction for locking. The locking mechanism mentioned in the background technology needs to climb along the wedge surface for locking. It is locked by moving obliquely upward. Friction will be generated between the wedge block and the chassis, which accelerates the wear of the wedge block, making it more fragile and not conducive to long-term plugging and unplugging.

[0028] In this embodiment, if Figure 3 and 4As shown, the rib 4 is provided with a through hole A that passes through both ends thereof, and trapezoidal blocks 8 are provided at both ends of the through hole A. A threaded hole is provided on the slider 7 away from the head of the bolt 9, and the bolt 9 is screwed into the threaded hole. A through hole B is provided on the slider 7 close to the head of the bolt 9, and the bolt 9 is inserted into the through hole B. The four trapezoidal blocks 8 lock the four corners of the VPX module, and the locking effect is better.

[0029] In this embodiment, if Figure 3 and 4 As shown, a boss 11 is integrally formed at the bottom of the slider 7 with a threaded hole, and a slide groove 12 corresponding to the boss 11 is provided on the lower chamber shell 1. The slide groove 12 extends along the axial direction of the bolt 9 to prevent the slider 7 with a threaded hole from rotating during the locking process, resulting in loose locking. At the same time, a limiting nut is screwed on the bolt 9, and the nut is used to prevent the slider 7 with a threaded hole from detaching from the bolt 9.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A structure of a VPX module locking mechanism, comprising a lower chamber housing (1), a PCBA board (2) and an upper cover (3), wherein the PCBA board (2) is fixed in the lower chamber housing (1) via the upper cover (3). Features: Ribs (4) are integrally formed on both sides of the lower cavity shell (1), and locking pieces are provided at the ends of the ribs (4), the locking pieces are used to fix the lower cavity shell (1) in a chassis, and heat dissipation holes (5) are provided on the ribs (4) and penetrate the side walls of the lower cavity shell (1).

2. The structure of a VPX module locking mechanism according to claim 1, Features: The rib (4) is also provided with a weight-reducing hole (6), the weight-reducing hole (6) being a through hole, and the weight-reducing hole (6) extends from the bottom of the lower chamber shell (1) toward the upper cover (3).

3. The structure of a VPX module locking mechanism according to claim 1, Features: The locking member comprises a slider (7), a trapezoidal block (8) and a bolt (9); the trapezoidal block (8) is provided with an oblong hole (10) penetrating through both waists thereof; the oblong hole (10) extends along the waistline of the trapezoidal block (8); the bolt (9) passing through the oblong hole (10) is used to clamp the rib (4) and the slider (7) on both waists of the trapezoidal block (8); the clamping surfaces of the rib (4) and the trapezoidal block (8) and the clamping surfaces of the slider (7) and the trapezoidal block (8) are all inclined toward the upper cover (3).

4. The structure of a VPX module locking mechanism according to claim 3, Features: The rib (4) is provided with a through hole A which passes through both ends thereof, and the trapezoidal blocks (8) are provided at both ends of the through hole A. A threaded hole is provided on the slider (7) away from the head of the bolt (9), and the bolt (9) is screwed into the threaded hole. A through hole B is provided on the slider (7) close to the head of the bolt (9), and the bolt (9) is inserted into the through hole B.

5. The structure of a VPX module locking mechanism according to claim 4, Features: A boss (11) is integrally formed at the bottom of the sliding block (7) having the threaded hole, and a slide groove (12) corresponding to the boss (11) is provided on the lower chamber shell (1), wherein the slide groove (12) extends along the axis direction of the bolt (9).

6. The structure of a VPX module locking mechanism according to claim 4, Features: A limit nut (13) is screwed onto the bolt (9), and the limit nut (13) is used to prevent the slider (7) having the threaded hole therein from being separated from the bolt (9).

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