A long-life general-purpose amplifier

Abstract

This utility model relates to the field of general-purpose amplifier technology and discloses a long-life general-purpose amplifier, including a lower housing, an upper housing, an amplifier chip, and several pins. The pins are soldered onto the amplifier chip, and the amplifier chip is encapsulated between the lower housing and the upper housing by a potting compound. The top surface of the lower housing has several lower grooves corresponding to the pins, and a limiting post I is provided on the lower groove. The bottom surface of the upper housing has several upper grooves above the lower grooves, and a limiting post II is provided on the upper groove. A through-hole is formed between the lower groove and the upper groove, and the pin passes through the through-hole. A limiting hole is provided on the pin. This utility model effectively prevents the amplifier chip and pins from easily detaching, improves the overall structural stability, and thus extends the service life of the general-purpose amplifier.

Description

Technical Field

[0001] This utility model relates to the field of general amplifier technology, and more specifically, to a long-life general amplifier. Background Technology

[0002] A general-purpose amplifier is an operational amplifier designed for general use. It achieves high input impedance and low output impedance through a multi-stage amplification structure (such as a common-emitter amplifier). Due to its high gain, differential structure, and integration advantages, the general-purpose amplifier has become one of the most widely used devices in the field of analog electronics. However, during use, if the general-purpose amplifier is subjected to prolonged or violent vibration, the amplifier chip and pins may easily detach, resulting in poor overall structural stability and shortening the service life of the general-purpose amplifier. Based on this, this utility model designs a long-life general-purpose amplifier to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a long-life universal amplifier to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A long-life universal amplifier includes a lower housing, an upper housing, an amplifier chip, and several pins. The pins are soldered onto the amplifier chip, which is encapsulated between the lower and upper housings by a potting compound. The top surface of the lower housing has several lower grooves corresponding to the pins, and each lower groove has a limiting post I. The bottom surface of the upper housing has several upper grooves above the lower grooves, and each upper groove has a limiting post II. A through-hole is formed between the lower and upper grooves, through which the pins pass. Each pin has a limiting hole, and both limiting posts I and II are adapted to the limiting holes. The bottom of the upper housing has several positioning posts spaced apart, and the top of the lower housing has positioning grooves spaced apart to match the positioning posts.

[0006] As a preferred embodiment of this utility model, the height dimensions of the limiting post I and the limiting post II are the same, and are half the depth dimension of the limiting hole.

[0007] As a preferred embodiment of this utility model, the number of positioning posts is four, and the positioning posts are distributed at the bottom corners of the upper shell.

[0008] As a preferred embodiment of this utility model, both ends of the lower housing are provided with lugs, and the surfaces of the lugs are provided with mounting holes.

[0009] As a preferred embodiment of this utility model, the lower shell and the lug are integrally formed.

[0010] As a preferred embodiment of this utility model, the potting compound layer is a component made of silicone rubber potting compound.

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

[0012] This invention utilizes a potting compound to encapsulate the amplifier chip between the lower and upper housings. Positioning posts are inserted into positioning grooves, resulting in excellent positioning during the encapsulation of the lower and upper housings. The top surface of the lower housing has several lower grooves corresponding to the pins, while the bottom surface of the upper housing has several upper grooves above these lower grooves. A through-hole is formed between the lower and upper grooves, through which the pins pass. Limiting post I is inserted into the lower part of the pin's limiting hole, and limiting post II is inserted into the upper part of the pin's limiting hole. This provides excellent pin-limiting and reinforcement, effectively preventing the amplifier chip and pins from easily detaching during prolonged or violent vibration, improving overall structural stability, and extending the lifespan of the general-purpose amplifier. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a long-life universal amplifier according to the present invention;

[0014] Figure 2 This is a cross-sectional view of a long-life universal amplifier according to the present invention.

[0015] Figure 3 This is a cross-sectional view of the lower housing of a long-life universal amplifier according to this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the upper housing of a long-life universal amplifier according to this utility model.

[0017] In the diagram: 1. Lower housing; 101. Lower groove; 102. Limiting post I; 103. Lug; 104. Mounting hole; 2. Upper housing; 201. Upper groove; 202. Limiting post II; 3. Amplifier chip; 4. Pin; 401. Limiting hole; 5. Encapsulating layer; 6. Positioning groove; 7. Positioning post. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1 to 4 As shown, this utility model provides a long-life universal amplifier, including a lower housing 1, an upper housing 2, an amplifier chip 3, and several pins 4. The pins 4 are soldered onto the amplifier chip 3. The amplifier chip 3 is encapsulated between the lower housing 1 and the upper housing 2 by a potting compound layer 5. The top surface of the lower housing 1 has several lower grooves 101 corresponding to the pins 4, and a limit post I102 is provided on the lower grooves 101. The bottom surface of the upper housing 2, above the lower grooves 101, has several upper grooves 201, and a limit post II202 is provided on the upper grooves 201. A gap is formed between the lower grooves 101 and the upper grooves 201. The device has a through-hole, through which pin 4 passes. Pin 4 has a limiting hole 401. Limiting post I102 and limiting post II202 are both adapted to the limiting hole 401, so that limiting post I102 can be inserted into the lower part of the limiting hole 401 of pin 4, and limiting post II202 can be inserted into the upper part of the limiting hole 401 of pin 4. The bottom of the upper housing 2 is provided with several positioning posts 7 at intervals, and the top of the lower housing 1 is provided with positioning grooves 6 at intervals that are adapted to the positioning posts 7, so that the positioning posts 7 can be inserted into the positioning grooves 6, resulting in a good positioning effect when encapsulating the lower housing 1 and the upper housing 2.

[0020] Among them, such as Figure 2 As shown, the height dimensions of the limiting post I102 and the limiting post II202 are the same, and are half the depth dimension of the limiting hole 401, so that the opposite end faces of the limiting post I102 and the limiting post II202 are in contact, which can play an auxiliary support role.

[0021] Among them, such as Figure 4 As shown, there are four positioning posts 7, which are distributed at the bottom corners of the upper housing 2.

[0022] Among them, such as Figure 1 and Figure 3 As shown, both ends of the lower housing 1 are provided with lugs 103, and the surface of the lugs 103 is provided with mounting holes 104, which achieves the purpose of positioning and installing the general amplifier.

[0023] Among them, such as Figure 3 As shown, the lower shell 1 and the lug 103 are integrally formed, which achieves the purpose of ensuring the structural strength between the lower shell 1 and the lug 103.

[0024] Among them, such as Figure 2 As shown, the potting compound layer 5 is a component made of silicone rubber potting compound, which gives the potting compound layer 5 good high temperature resistance and corrosion resistance.

[0025] The working principle of this utility model:

[0026] The amplifier chip 3 is encapsulated between the lower housing 1 and the upper housing 2 using a potting compound layer 5. The positioning post 7 is inserted into the positioning groove 6, which produces a good positioning effect when encapsulating the lower housing 1 and the upper housing 2. Several lower grooves 101 are opened on the top surface of the lower housing 1, corresponding to the pin 4. The limiting post I 102 is set on the lower groove 101. Several upper grooves 201 are opened on the bottom surface of the upper housing 2 above the lower grooves 101. The limiting post II 202 is set on the upper groove 201. A through-hole is formed between the lower grooves 101 and the upper grooves 201. The pin 4 passes through the through-hole. The limiting post I 102 is inserted into the lower part of the limiting hole 401 of the pin 4, and the limiting post II 202 is inserted into the upper part of the limiting hole 401 of the pin 4. This can produce a better limiting and reinforcement effect on the pin 4. During use, if subjected to long-term or violent vibration, it can effectively prevent the amplifier chip 3 and the pin 4 from easily falling off, thus improving the overall structural stability.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A long-life general-purpose amplifier comprising a lower housing (1), an upper housing (2), an amplifier chip (3) and a plurality of pins (4) welded to the amplifier chip (3), the amplifier chip (3) being potted between the lower housing (1) and the upper housing (2) by a potting layer (5), characterized in that: The top surface of the lower housing (1) is provided with a plurality of lower grooves (101) corresponding to the pins (4), and a limit post I (102) is provided on the lower grooves (101). The bottom surface of the upper housing (2) is provided with a plurality of upper grooves (201) above the lower grooves (101), and a limit post II (202) is provided on the upper grooves (201). A through-hole is formed between the lower groove (101) and the upper groove (201), and the pin (4) passes through the through-hole. A limiting hole (401) is opened on the pin (4). The limiting post I (102) and the limiting post II (202) are adapted to the limiting hole (401). A number of positioning posts (7) are spaced apart at the bottom of the upper housing (2), and positioning grooves (6) adapted to the positioning posts (7) are spaced apart at the top of the lower housing (1).

2. A long life universal amplifier as claimed in claim 1, characterized in that: The height dimensions of the limiting post I (102) and the limiting post II (202) are the same, and are half the depth dimension of the limiting hole (401).

3. A long life universal amplifier as claimed in claim 1, characterized in that: The number of positioning posts (7) is four, and the positioning posts (7) are distributed at the bottom corners of the upper shell (2).

4. A long-life general-purpose amplifier according to claim 1, characterized in that: Both ends of the lower housing (1) are provided with lugs (103), and the surface of the lugs (103) is provided with mounting holes (104).

5. A long-life general-purpose amplifier according to claim 4, characterized in that: The lower shell (1) and the lug (103) are integrally formed.

6. A long-life universal amplifier according to claim 1, characterized in that: The potting compound layer (5) is a component made of silicone rubber potting compound.

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