IP68 preamplifier for aviation

Abstract

This utility model discloses a preamplifier technology, specifically an IP68 preamplifier for aviation applications. It includes a housing, a coil, an amplifier board assembly, potting compound, countersunk screws, a top cover assembly, a sealing sheet, fastening screws, and a circular socket. The coil and amplifier board assembly are sequentially installed inside the housing. The sealing sheet and circular socket are sequentially installed on the side of the housing and secured with fastening screws. The potting compound is poured into the housing, extending beyond the amplifier board assembly and the circular socket. The top cover assembly is installed on the upper end of the housing and correspondingly screwed into the countersunk screws. This utility model achieves dual sealing of the electrical and mechanical structures by filling the housing with A / B epoxy potting compound that extends beyond the amplifier board assembly and the circular socket, combined with conductive rubber sheets and conductive rubber O-rings, thus meeting the IP68 protection rating.

Description

Technical Field

[0001] This utility model relates to the field of preamplifier technology, specifically to an IP68 preamplifier for aviation applications. Background Technology

[0002] The preamplifier operates based on Faraday's law of electromagnetic induction. When the coil is energized, it generates a magnetic field, detects the signal from the sensor below, processes and amplifies it, and then converts it into a pulse or current signal for output.

[0003] Existing traditional preamplifiers have the following drawbacks:

[0004] 1. Most of them use austenitic stainless steel as the shell material, which makes the overall weight heavy and not suitable for use in aircraft;

[0005] 2. Most protection levels do not meet the IP68 design requirements, which limits their application in complex environments. Therefore, it is necessary to develop an IP68 preamplifier for aviation applications. Utility Model Content

[0006] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] An IP68 preamplifier for aviation use includes a housing, a coil, an amplifier board assembly, potting compound, countersunk screws, a top cover assembly, a sealing plate, fastening screws, and a circular socket.

[0009] The coil and amplifier board assembly are sequentially installed inside the housing. The sealing sheet and circular socket are sequentially installed on the side of the housing and locked with fastening screws. The potting compound is poured into the housing, extending beyond the amplifier board assembly and the circular socket. The top cover assembly is installed on the upper end of the housing and correspondingly screwed in countersunk screws.

[0010] As a preferred embodiment of the IP68 preamplifier for aviation described in this utility model, the housing has an outer square and inner round structure, with an M-thread machined at the lower end for connection, and round holes and threaded holes machined on the side for mounting a round socket. The upper end has an open structure, with countersunk holes evenly distributed around the opening at the upper end for fixing the upper cover assembly.

[0011] As a preferred embodiment of the IP68 preamplifier for aviation described in this utility model, the upper cover assembly includes an upper cover and a sealing O-ring. The upper cover has an upper circular structure with a cavity machined in the middle. The lower circular structure has an O-ring groove machined for installing the sealing O-ring. Threaded holes are machined above the O-ring groove and are distributed at 90° in the circumferential direction for screwing in countersunk screws.

[0012] In a preferred embodiment of the IP68 preamplifier for aviation described in this utility model, the sealing sheet is disposed between the circular socket and the housing, and the sealing O-ring is disposed between the top cover and the housing.

[0013] The beneficial effects of this utility model are:

[0014] 1. By filling the housing with A / B epoxy potting compound and extending it beyond the amplification board assembly and circular socket, combined with conductive rubber sheets and conductive rubber O-rings, a dual seal for both electrical and mechanical structures is achieved, meeting the IP68 protection rating;

[0015] 2. The housing and top cover are made of aerospace-grade aluminum alloy, which greatly reduces weight while ensuring strength, adapts to the needs of aerospace scenarios, has a simple overall structure for installation, and provides stable signal output, making it widely applicable in the aerospace field. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the internal components of this utility model from the main view direction;

[0018] Figure 2 This is a schematic diagram of the internal components of this utility model from a side view.

[0019] Figure 3 This is a top view of the structure of this utility model;

[0020] Figure 4 This is a structural schematic diagram of the upper cover assembly of this utility model.

[0021] In the diagram: 1-Housing, 2-Coil, 3-Amplifier board assembly, 4-Potent, 5-Counterhead screw, 6-Top cover assembly, 7-Sealing plate, 8-Fasting screw, 9-Circular socket, 10-Top cover, 11-Sealing O-ring. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] Please see Figures 1-4 The diagram shows a structural schematic of an embodiment of the IP68 preamplifier for aviation applications according to this utility model. Please refer to [link / reference]. Figures 1-4 This paper provides a detailed introduction to an IP68 preamplifier for aviation applications.

[0027] An IP68 preamplifier for aviation includes a housing 1, a coil 2, an amplifier board assembly 3, potting compound 4, countersunk screws 5, a top cover assembly 6, a sealing plate 7, fastening screws 8, and a circular socket 9.

[0028] The coil 2 and the amplifier board assembly 3 are sequentially installed inside the housing 1. The sealing sheet 7 and the circular socket 9 are sequentially installed on the side of the housing 1 and locked with fastening screws 8. The potting compound 4 is poured into the housing 1, extending beyond the amplifier board assembly 3 and the circular socket 9. The top cover assembly 6 is installed on the upper end of the housing 1 and correspondingly screwed in countersunk screws 5.

[0029] Furthermore, the housing 1 has an inner circle and outer square structure, with an M-thread machined at the lower end for connection, and a round hole and a threaded hole machined on the side for installing a round socket 9. The countersunk hole machined at the top corresponds to the position of the threaded hole in the circumferential direction of the upper cover assembly 6 for fixing the upper cover assembly 6. This solves the problems of weight and sealing of traditional amplifiers, and the housing also ensures a certain strength requirement.

[0030] Furthermore, the upper cover assembly 6 consists of an upper cover 10 and a sealing O-ring 11. The upper cover 10 has an upper circular structure with a cavity in the middle. The lower circular structure has an O-ring groove for installing the sealing O-ring, and the upper circumference of the O-ring groove has a threaded hole at 90°, thereby solving the installation and sealing problem between the upper cover assembly 6 and the housing 1.

[0031] Furthermore, the sealing sheet 7 and the sealing O-ring 11 are respectively installed between the circular socket 9 and the housing 1, and between the upper cover assembly 6 and the housing 1, to achieve a sealing effect.

[0032] Working principle: During operation, the operator first solders the lead wire of coil 2 to the amplifier board assembly 3, and then installs coil 2 and amplifier board assembly 3 into housing 1 in sequence. Coil 2 is installed in the M-threaded inner cavity at the bottom of housing 1, and amplifier board assembly 3 is installed above the coil. Then, the sealing plate 7 is placed inside the circular socket 9 and installed on the side of housing 1, with the sealing plate 7 between the circular socket 9 and housing 1. The fastening screw 8 is then tightened. After the circular socket 9 and amplifier board assembly 3 are connected, potting compound 4 is poured into the inside of housing 1, exceeding the amplifier board assembly 3 and the circular socket 9. After the potting compound 4 has cured, the top cover assembly 6 with sealing O-ring 11 is pressed into the top of housing 1. The positions of the screw mounting holes on the top cover 6 and the top of housing 1 must correspond. Finally, the countersunk screw 5 is screwed in.

[0033] The components of this utility model, namely 1-housing, 2-coil, 3-amplifier board assembly, 4-potting compound, 5-countersunk screw, 6-top cover assembly, 7-sealing plate, 8-fastening screw, 9-circular socket, 10-top cover, and 11-sealing O-ring, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this utility model is that existing traditional preamplifiers are heavy, which is not conducive to use on aircraft, and most preamplifiers do not meet the IP68 protection level design requirements. This utility model solves the weight problem of traditional preamplifiers by combining the above components, and the protection level can meet IP68. It is simple to install, has stable signal output, and can be widely used in the aviation field.

[0034] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An IP68 preamplifier for aviation applications, characterized in that: Includes housing (1), coil (2), amplifier board assembly (3), potting compound (4), countersunk screw (5), top cover assembly (6), sealing plate (7), fastening screw (8) and round socket (9); The coil (2) and the amplifier board assembly (3) are sequentially installed inside the housing (1). The sealing sheet (7) and the circular socket (9) are sequentially installed on the side of the housing (1) and locked with fastening screws (8). The potting compound (4) is poured into the housing (1) and extends beyond the amplifier board assembly (3) and the circular socket (9). The top cover assembly (6) is installed on the upper end of the housing (1) and correspondingly screwed in countersunk screws (5).

2. The aviation IP68 preamplifier according to claim 1, characterized in that: The housing (1) has an outer square and inner circle structure. The lower end is machined with an M thread for connection. The side is machined with a round hole and a threaded hole for installing a round socket (9). The upper end is an open structure. The upper end is machined with countersunk holes evenly distributed around the opening for fixing the upper cover assembly (6).

3. The aviation IP68 preamplifier according to claim 1, characterized in that: The upper cover assembly (6) includes an upper cover (10) and a sealing O-ring (11). The upper cover (10) has an upper circular structure with a cavity in the middle. The lower circular structure has an O-ring groove for installing the sealing O-ring (11). The O-ring groove has threaded holes above it and is distributed at 90° in the circumferential direction for screwing in countersunk screws (5).

4. An aviation IP68 preamplifier according to claim 3, characterized in that: The sealing sheet (7) is disposed between the circular socket (9) and the housing (1), and the sealing O-ring (11) is disposed between the upper cover (10) and the housing (1).

Images