Shock absorber for printed circuit board circuit or module and printed circuit board circuit or module

Abstract

The invention relates to the technical field of shock absorbers, and discloses a shock absorber for a printed board circuit or module and the printed board circuit or module. The shock absorber comprises a metal threaded sleeve and a metal threaded rod, the metal threaded sleeve and the metal threaded rod are formed through vulcanization of shock absorption rubber, a plurality of bosses are arranged on the face, making contact with the shock absorption rubber, of the metal threaded sleeve, and a plurality of bosses are arranged on the face, making contact with the shock absorption rubber, of the metal threaded rod. Therefore, the problems that in the flight process of the circuit or the electrical module for the aircraft, the mechanical environment condition is severe, and the reliability of sensitive electronic components is reduced are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vibration dampers, and in particular to a vibration damper for a printed circuit board or module and the printed circuit board or module. Background Art

[0002] In order to improve the mechanical environmental adaptability of printed circuit boards or electrical modules, it is usually necessary to strengthen the design of printed circuit board structures or sensitive electronic components or increase the overall vibration reduction design of the circuit. However, traditional circuit board vibration absorbers often have the disadvantages of large space, heavy weight, and relatively cumbersome installation. Especially in the context of the development of electronic equipment design tending to be more miniaturized and lightweight, vibration absorbers occupy too much effective design area of ​​​​circuit boards, which is becoming increasingly unacceptable. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a vibration damper for a printed circuit board or module and a printed circuit board or module, which can solve the problems in the prior art.

[0004] The technical solution of the present invention is: a vibration damper for a printed circuit board or module, wherein the vibration damper includes a metal screw sleeve and a metal screw rod, the metal screw sleeve and the metal screw rod are vulcanized by vibration damping rubber, a plurality of bosses are arranged on the side of the metal screw sleeve in contact with the vibration damping rubber, and a plurality of bosses are arranged on the side of the metal screw rod in contact with the vibration damping rubber.

[0005] Preferably, the installation position of the shock absorber load is coaxially designed with the installation position of the shock absorber, the shock absorber load is installed through the internal thread of the metal screw sleeve, and the shock absorber is installed through the external thread of the metal screw.

[0006] Preferably, the nominal diameter of the internal thread is smaller than the nominal diameter of the external thread.

[0007] Preferably, the internal thread is an M2.5 specification thread, and the external thread is an M3 specification thread.

[0008] Preferably, the outer edges of the metal screw sleeve and the metal screw are hexagonal in shape.

[0009] Preferably, the side of the metal screw sleeve in contact with the vibration-damping rubber is provided with 6 bosses, and the side of the metal screw rod in contact with the vibration-damping rubber is provided with 12 bosses.

[0010] The present invention also provides a printed circuit board or module, which includes the above-mentioned vibration damper for the printed circuit board or module.

[0011] Through the above technical solution, a compact shock absorber structure for printed circuit boards or modules can be provided. The layout area of ​​the circuit board is effectively guaranteed, so that a smaller design space can meet the design requirements, improve the adaptability of functional circuits in harsh vibration and impact environments, and solve the problems of harsh mechanical environment conditions and reduced reliability of sensitive electronic components in aircraft circuits or electrical modules during flight. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The included drawings are used to provide a further understanding of the embodiments of the present invention, which constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the text description, explain the principles of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 A schematic diagram of the composition of a vibration absorber for a printed circuit board or module provided by an embodiment of the present invention;

[0014] Figure 2 It is a dimension diagram and a cross-sectional view of the shock absorber in the embodiment of the present invention;

[0015] Figure 3 It is the appearance diagram of the metal screw sleeve of the vibration absorber in the embodiment of the present invention;

[0016] Figure 4 1 is an appearance diagram of the metal screw of the vibration absorber in an embodiment of the present invention. DETAILED DESCRIPTION

[0017] Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in detail.In the following description, for explanation and not limiting purpose, set forth specific details, to help fully understand the present invention.But it is obvious to those skilled in the art that also can practice the present invention in other embodiment that breaks away from these specific details.

[0018] It should be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0019] like Figure 1-4 As shown, an embodiment of the present invention provides a vibration damper for a printed circuit board or module, wherein the vibration damper includes a metal thread sleeve 4 and a metal screw 6, the metal thread sleeve 4 and the metal screw 6 are vulcanized by a vibration damping rubber 5, a side of the metal thread sleeve 4 in contact with the vibration damping rubber 5 is provided with a plurality of bosses 7, and a side of the metal screw 6 in contact with the vibration damping rubber 5 is provided with a plurality of bosses 7.

[0020] Through vulcanization molding, the various components of the shock absorber can be formed into a whole and cannot be separated. Figure 1 shown.

[0021] Through the above technical solution, a compact shock absorber structure for printed circuit boards or modules can be provided. The layout area of ​​the circuit board is effectively guaranteed, so that a smaller design space can meet the design requirements, improve the adaptability of functional circuits in harsh vibration and impact environments, and solve the problems of harsh mechanical environment conditions and reduced reliability of sensitive electronic components in aircraft circuits or electrical modules during flight.

[0022] By designing a plurality of bosses 7 on the surfaces where the metal screw sleeve 4 and the metal screw 6 are combined with the vibration damping rubber 5, the connection strength between the vibration damper rubber and the metal part can be improved. Figure 3 and Figure 4 In other words, the boss design can increase the contact area between the metal parts and the rubber, and enhance the strength against shearing and tearing.

[0023] According to one embodiment of the present invention, the installation position of the shock absorber load is coaxially designed with the installation position of the shock absorber, the shock absorber load is installed through the internal thread 8 of the metal screw sleeve 4, and the shock absorber is installed through the external thread 8 of the metal screw 6.

[0024] According to one embodiment of the present invention, the nominal diameter of the internal thread 8 is smaller than the nominal diameter of the external thread 9 .

[0025] By making the nominal diameter of the internal thread 8 of the metal screw sleeve 4 smaller than the external thread 9 of the metal screw 6, the disassembly torque is proportional to the nominal diameter, thereby preventing unnecessary coaxial rotation and difficulty in disassembly when disassembling the product.

[0026] According to an embodiment of the present invention, the internal thread 8 is a thread of M2.5 specification, and the external thread 9 is a thread of M3 specification.

[0027] According to an embodiment of the present invention, the outer edges of the metal screw sleeve 4 and the metal screw 6 are hexagonal in shape.

[0028] The outer edges of the metal screw sleeve 4 and the metal screw rod 6 are designed to be hexagonal in shape, which is convenient for installation and tool clamping.

[0029] According to an embodiment of the present invention, six bosses 7 are provided on the side of the metal screw sleeve 4 that contacts the vibration-damping rubber 5 , and twelve bosses 7 are provided on the side of the metal screw rod 6 that contacts the vibration-damping rubber 5 .

[0030] An embodiment of the present invention further provides a printed circuit board or module, which includes the vibration absorber for the printed circuit board or module described in any of the above embodiments.

[0031] The vibration damper for a printed circuit board or a module according to the present invention is described below with reference to examples.

[0032] like Figure 3-4 As shown, the shock absorber of the present invention is provided with 6 bosses 7 on the side where the metal screw sleeve 4 and the rubber are vulcanized. Similarly, 12 bosses are provided on the side where the metal screw rod 6 and the rubber are vulcanized to improve the connection strength between the metal structure and the rubber. The metal screw sleeve 4 and the metal screw rod 6 can be positioned and fixed by a special injection mold to complete the vulcanization molding process of the rubber and the structural part. Figure 1 The outer edges of the metal screw sleeve 4 and the metal screw rod 6 are designed in an outer hexagonal shape, which is convenient for disassembling and assembling the shock absorber or clamping the tool when loading, and avoids the rubber part from being damaged by excessive force. Figure 2 As shown, the internal thread 8 of the metal screw sleeve 4 is a M2.5 specification thread, and the external thread 9 of the metal screw rod 6 is a M3 specification thread. Since the disassembly torque of the M3 thread is greater than that of the M2.5 thread, coaxial rotation can be prevented when disassembling the product.

[0033] The vibration damper can realize vibration damping and buffering functions for the circuit. The board area occupied by the vibration damper is only increased by the area occupied by the vibration damping stroke compared with the circuit without vibration damping, and the loss of effective circuit area is small. The present invention can make full use of the limited design space to meet the product design requirements and improve the survivability of the functional circuit in a harsh vibration impact environment.

[0034] It can be seen from the above embodiments that the shock absorber for printed circuit boards or modules described in the present invention adopts a metal structural part and a high damping rubber vulcanization molding design; the shock absorber load installation position is coaxially designed with the shock absorber installation position, the load end is installed through an internal thread, and the shock absorber is installed through an external thread, and the nominal diameter of the internal thread is smaller than the nominal diameter of the external thread; the metal structural part and the rubber contact part adopt a multiple boss design to increase the connection strength with the rubber; the outer edge of the metal structural part adopts an external hexagonal deformation structure design for easy installation. The present invention can save the design space size of the circuit board, ensure the effective design area of ​​the circuit, and has the characteristics of compact structure and high integration.

[0035] Features described and / or illustrated above for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with or used in place of features in other embodiments.

[0036] It should be emphasized that the term "include / comprises" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps, components or combinations thereof.

[0037] The above devices and methods of the present invention can be implemented by hardware, or by hardware combined with software. The present invention relates to such a computer-readable program, which, when executed by a logic component, enables the logic component to implement the above-mentioned devices or components, or enables the logic component to implement the above-mentioned various methods or steps. The present invention also relates to a storage medium for storing the above-mentioned program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0038] The many features and advantages of these embodiments are apparent from this detailed description, and thus the appended claims are intended to cover all such features and advantages of these embodiments that fall within their true spirit and scope. Furthermore, since numerous modifications and changes will readily occur to those skilled in the art, it is not intended that the embodiments of the invention be limited to the exact construction and operation illustrated and described, but rather all suitable modifications and equivalents falling within the scope thereof are intended to be covered.

[0039] Parts of the present invention that are not described in detail are well known to those skilled in the art.

Claims

1. A vibration damper for a printed circuit board or module, characterized in that: The vibration damper comprises a metal screw sleeve (4) and a metal screw rod (6); the metal screw sleeve (4) and the metal screw rod (6) are vulcanized by vibration damping rubber (5); a plurality of bosses (7) are arranged on the side of the metal screw sleeve (4) in contact with the vibration damping rubber (5); and a plurality of bosses (7) are arranged on the side of the metal screw rod (6) in contact with the vibration damping rubber (5).

2. The shock absorber according to claim 1, characterized in that: The installation position of the shock absorber load is coaxially designed with the installation position of the shock absorber. The shock absorber load is installed through the internal thread (8) of the metal screw sleeve (4), and the shock absorber is installed through the external thread (8) of the metal screw rod (6).

3. The shock absorber according to claim 2, characterized in that: The nominal diameter of the internal thread (8) is smaller than the nominal diameter of the external thread (9).

4. The shock absorber according to claim 3, characterized in that The internal thread (8) is a M2.5 specification thread, and the external thread (9) is a M3 specification thread.

5. The shock absorber according to claim 4, characterized in that The outer edges of the metal screw sleeve (4) and the metal screw rod (6) are hexagonal in shape.

6. The shock absorber according to claim 5, characterized in that The side of the metal screw sleeve (4) in contact with the vibration-damping rubber (5) is provided with six bosses (7), and the side of the metal screw rod (6) in contact with the vibration-damping rubber (5) is provided with twelve bosses (7).

7. A printed circuit board or module, characterized in that: A vibration absorber for a printed circuit board or a module comprising any one of claims 1 to 6.

Images