Small surface-mounted transistor

Abstract

The utility model relates to the related technical field of small-sized surface-mounted transistors, in particular to a small-sized surface-mounted transistor, which comprises a packaging body, a pin mounting plate, pins and a fixing assembly, the pin mounting plate is arranged at the mounting position of the packaging body, the pins are mounted at the fixing position of the pin mounting plate, and the fixing assembly is arranged at the fixing position of the pin mounting plate. According to the utility model, the packaging body can be welded and installed through the transistor body and the built-in pins, and the pin installation plate can be replaced as a whole, so that the installation qualified rate of the small surface-mounted transistor is improved, and the installation cost of the small surface-mounted transistor is reduced. When the pins of the small surface-mounted transistor are damaged due to too high welding temperature, the disassembled packaging body is installed and positioned through the transistor body and the built-in pins, the small surface-mounted transistor does not need to be replaced, and the welding damage rate of the small surface-mounted transistor is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to small size table transistor related technical field, specifically a small size table transistor. BACKGROUND

[0002] Small size table transistor welding time: do not be too long, avoid damaging element or PCB board, soldering tin amount: ensure that the soldering tin of every pin is full, guarantee good electrical connection, temperature control: the temperature of soldering iron should be controlled in proper range, usually between 200-400 DEG C, the specific temperature adjusts according to element type and soldering tin type, cleaning: before welding, must clean chip and pad, remove oxide layer and impurity, to ensure good welding effect.

[0003] The existing small size table transistor is damaged due to high welding temperature when installing, and the pin needs to be replaced twice or the small size table transistor is replaced, so that the qualified rate of small size table transistor welding installation is too low. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a small size table transistor to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A small size table transistor, including package body, pin mounting plate and pin and fixed assembly, the mounting place on the package body is provided with pin mounting plate, the fixed place on the pin mounting plate is installed with pin, the connection place on the fixed assembly is provided with package body and pin mounting plate, still include being provided with,

[0007] Secondary installation assembly, install on the package body;

[0008] External connection assembly, set up on the pin mounting plate;

[0009] Among them, the mounting place on the pin mounting plate is connected with fixed peg screw thread, the mounting place on the fixed peg is provided with welding plate.

[0010] The small size table transistor as described above: the pin mounting plate is fastened on the welding plate through fixed peg screw thread.

[0011] The small size table transistor as described above: the pin is fixedly installed on the package body and the pin mounting plate through welding plate.

[0012] The small surface-mounted transistor comprises a transistor body fixedly connected to a packaging body, built-in pins fixed to the transistor body, and mounting grooves mounted on the built-in pins.

[0013] The small surface-mounted transistor comprises a transistor body fixedly connected to a packaging body, built-in pins fixed to the transistor body, and mounting grooves mounted on the built-in pins.

[0014] The small surface-mounted transistor comprises a transistor body fixedly connected to a packaging body, built-in pins fixed to the transistor body, and mounting grooves mounted on the built-in pins.

[0015] The small surface-mounted transistor comprises a transistor body fixedly connected to a packaging body, built-in pins fixed to the transistor body, and mounting grooves mounted on the built-in pins.

[0016] Compared with the prior art, the packaging body can be welded and mounted through the transistor body and the built-in pins, and the pin mounting plate can be replaced as a whole, thereby improving the installation qualification rate of the small surface-mounted transistor, and when the pin of the small surface-mounted transistor is damaged due to excessively high welding temperature, the packaging body can be disassembled and positioned through the transistor body and the built-in pins, without the need to replace the small surface-mounted transistor, thereby reducing the welding damage rate of the small surface-mounted transistor.

[0017] When the external pin is slidably mounted on the external hole through the groove track, the user can directly weld the external pin and the external hole, increase the thickness of the pin, avoid damage to the pin of the small surface-mounted transistor due to excessively high welding temperature, and can be slidably assembled through the external pin and the groove track, thereby prolonging the installation thickness and length of the pin, reducing the secondary installation replacement rate of the pin, and preventing damage to the small surface-mounted transistor during the welding installation process. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is a structure schematic diagram of the secondary installation assembly of the utility model;

[0020] Figure 3 It is a structure schematic diagram of the external connection assembly of the utility model.

[0021] In the drawing: 1, packaging body; 2, pin mounting plate; 3, fixing bolt; 4, welding plate; 5, pin; 6, transistor body; 7, built-in pin; 8, mounting groove; 9, external hole; 10, external pin; 11, groove track. DETAILED DESCRIPTION

[0022] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings denote the same elements or similar elements. Although various aspects of the embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0023] The term "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0024] In addition, for the purpose of convenience and brevity, detailed descriptions of well-known devices, methods, procedures, components, and mechanisms can not be described in detail herein. It is appreciated that those skilled in the art will readily connect the aspects of the present application with this material without undue effort.

[0025] Please refer to Figures 1-3 , a small surface mount transistor is provided, comprising a package body 1, a pin mounting plate 2 and a pin 5 and a fixing assembly.

[0026] The mounting portion on the package body 1 is provided with the pin mounting plate 2, the fixing portion on the pin mounting plate 2 is provided with the pin 5, the connecting portion on the fixing assembly is provided with the package body 1 and the pin mounting plate 2, the secondary mounting assembly is mounted on the package body 1; the external connecting assembly is arranged on the pin mounting plate 2.

[0027] The package body 1 is fixedly mounted inside the pin mounting plate 2, so that the pin 5 is fixedly connected around the outside of the pin mounting plate 2, and the package body 1 is welded and mounted through the pin mounting plate 2 and the pin 5.

[0028] The mounting portion on the pin mounting plate 2 is threadedly connected with the fixing bolt 3, and the mounting portion on the fixing bolt 3 is provided with the welding plate 4.

[0029] In this embodiment, the fixing bolt 3 is threadedly connected with the pin mounting plate 2, the welding plate 4 is tightly mounted outside the pin mounting plate 2 through the fixing bolt 3, and the pin 5 is fixedly connected with the welding plate 4, and the pin 5 is threadedly connected with the pin mounting plate 2 through the welding plate 4 and the fixing bolt 3.

[0030] Preferably, the pin mounting plate 2 is threadedly fastened with the welding plate 4 through the fixing bolt 3, the small surface mount transistor is mounted through the pin mounting plate 2, and the pin mounting plate 2 is externally mounted through the thread fastening of the welding plate 4 and the fixing bolt 3.

[0031] Preferably, the pin 5 is fixedly installed on the packaging body 1 and the pin mounting plate 2 through the soldering plate 4, and the packaging body 1 is fixedly installed inside the pin mounting plate 2, and then the positioning and installation welding are performed through the pin 5 and the soldering plate 4 on the pin mounting plate 2.

[0032] Please refer to Figure 1 and Figure 2 In this embodiment, the secondary installation assembly includes the transistor body 6 fixedly connected to the packaging body 1, the built-in pin 7 fixedly connected to the transistor body 6, and the installation slot 8 installed on the built-in pin 7.

[0033] The installation slot 8 is arranged inside the pin mounting plate 2, and the packaging body 1 is assembled through the installation slot 8. The transistor body 6 is fixedly connected to the bottom end of the packaging body 1, the built-in pin 7 is fixedly connected to the transistor body 6, and the transistor body 6 is integrally installed inside the installation slot 8 through the built-in pin 7, so that the pin mounting plate 2 and the packaging body 1 are assembled into a small surface-mounted transistor.

[0034] Preferably, the transistor body 6 and the built-in pin 7 are installed on the installation slot 8 through the packaging body 1. When the pin 5 and the soldering plate 4 on the pin mounting plate 2 and the packaging body 1 are damaged during installation and welding, the user can threadedly disassemble the pin mounting plate 2 and the packaging body 1. The packaging body 1 can be welded and installed through the transistor body 6 and the built-in pin 7, and the pin mounting plate 2 can be integrally replaced, thereby improving the installation qualification rate of the small surface-mounted transistor, reducing the damage rate of the small surface-mounted transistor caused by excessively high welding temperature, and reducing the need to replace the small surface-mounted transistor.

[0035] Please refer to Figure 1 and Figure 3 In this embodiment, the external connection assembly includes the external hole 9 arranged on the pin 5, the external pin 10 movably installed inside the pin 5, and the groove rail 11 arranged on both sides of the external pin 10.

[0036] When the external hole 9 is arranged on the pin 5, the external pin 10 can be movably installed inside the hollow pin 5. The external pin 10 is slidably installed on the external hole 9 through the groove rail 11, the pin 5 can be extended and assembled, and the pin 5 does not need to be additionally connected.

[0037] Preferably, the external pin 10 is slidably mounted on the pin 5 and the external hole 9 through the groove track 11, when the external pin 10 is slidably mounted on the external hole 9 through the groove track 11, the user can directly weld the external pin 10 and the external hole 9, increase the thickness of the pin 5, avoid the damage of the small surface mount transistor pin caused by the too high welding temperature, can be assembled by sliding the external pin 10 and the groove track 11, can prolong the installation thickness and length of the pin 5, reduce the secondary installation replacement rate of the pin 5, and prevent the damage of the small surface mount transistor in the welding installation process.

[0038] As can be seen from the above, the pin 5 is fixedly connected around the outside of the pin mounting plate 2, the packaging body 1 is welded and installed through the pin mounting plate 2 and the pin 5, the external pin 10 and the groove track 11 can be slidably assembled, the installation thickness and length of the pin 5 can be prolonged, the secondary installation replacement rate of the pin 5 can be reduced, and the damage of the small surface mount transistor in the welding installation process can be prevented, the pin mounting plate 2 can be assembled to the packaging body 1 through the installation groove 8, the transistor body 6 is fixedly connected to the bottom end of the packaging body 1, the built-in pin 7 is fixedly connected to the transistor body 6, and the transistor body 6 is integrally installed in the installation groove 8 through the built-in pin 7.

[0039] The user can directly weld the external pin 10 and the external hole 9, increase the thickness of the pin 5, avoid the damage of the small surface mount transistor pin caused by the too high welding temperature, can be assembled by sliding the external pin 10 and the groove track 11, can prolong the installation thickness and length of the pin 5.

[0040] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and not limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalents of the elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be considered as limiting the claims involved.

[0041] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A small outline surface transistor comprising a package body (1), a pin mounting plate (2) and a pin (5) and a fixing assembly, a mounting place on the package body (1) is provided with the pin mounting plate (2), a fixing place on the pin mounting plate (2) is mounted with the pin (5), and a connecting place on the fixing assembly is provided with the package body (1) and the pin mounting plate (2), characterized in that: Also include provided with, ​ Secondary installation assembly, installed on the package body (1); External connection assembly, provided on the pin mounting plate (2); Wherein, the mounting place on the pin mounting plate (2) is threadedly connected with a fixing bolt (3), and the mounting place on the fixing bolt (3) is provided with a welding plate (4).

2. A small surface mount transistor according to claim 1, wherein The pin mounting plate (2) is threadedly fastened on the welding plate (4) through the fixing bolt (3).

3. A small surface mount transistor according to claim 1, wherein, The pin (5) is fixedly installed on the package body (1) and the pin mounting plate (2) through the welding plate (4).

4. A small surface mount transistor according to claim 1, wherein, The secondary installation assembly comprises a transistor body (6) fixedly connected to the package body (1), a built-in pin (7) fixedly connected to the connecting place on the transistor body (6), and an installation slot (8) installed on the mounting place on the built-in pin (7).

5. A small surface mount transistor according to claim 4, wherein, The transistor body (6) and the built-in pin (7) are installed on the installation slot (8) through the package body (1).

6. A small surface mount transistor according to claim 1, wherein, The external connection assembly comprises an external hole (9) opened on the pin (5), an external pin (10) movably installed in the pin (5), and a groove rail (11) opened on both sides of the external pin (10).

7. A small surface mount transistor according to claim 6, wherein, The external pin (10) is slidably installed on the pin (5) and the external hole (9) through the groove rail (11).

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