CN215732224U

CN215732224U - Sensor skeleton texture convenient to welding resistance

Info

Publication number: CN215732224U
Application number: CN202122161577.9U
Authority: CN
Inventors: 李强; 何必胥; 林庆俊; 林庆枢; 孙成超; 林华定
Original assignee: Shanghai Prevision Automotive Sensor Co ltd
Current assignee: Shanghai Prevision Automotive Sensor Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-02-01
Anticipated expiration: 2031-09-08

Abstract

The utility model provides a sensor skeleton structure convenient for welding a resistor, and relates to the technical field of sensors, wherein the sensor skeleton structure comprises a skeleton arranged on a shell of the sensor; the upper end of the framework is provided with an installing head, and the installing head is internally provided with a jack; a first contact pin is arranged in the jack; the first contact pin consists of a front contact pin and a rear contact pin; the front end contact pin is inserted in the jack; one end of the rear end contact pin, which is far away from the mounting head, is connected with the IC chip; a positioning piece arranged on the framework is arranged between the front end contact pin and the rear end contact pin; a positioning groove is arranged on the positioning piece; the locating slot is internally connected with a resistor in a clamping way. The sensor framework structure avoids using a high-price PCB, so that the cost can be effectively reduced; the production process is simplified; the product has higher stability.

Description

Sensor skeleton texture convenient to welding resistance

Technical Field

The utility model relates to the technical field of sensors, in particular to a sensor framework structure convenient for welding a resistor.

Background

As the use environment of the automobile engine is more complicated, higher requirements are put on EMC (Electro MagnetIC Compatibility) of the automobile sensor. Although the integration of the mainstream IC chip is high at present, two capacitors can be integrated to improve the EMC performance; however, in special use environments, which require higher EMC performance, it is common to connect a custom resistor in series with the power supply terminal. When a series resistor is required, a conventional method is to use a PCB board and fix the resistor on the PCB board. The installation mode needs to additionally use a PCB, so that the cost is high and the production process is complex.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sensor framework structure convenient for welding resistance so as to solve the technical problem.

In order to achieve the above object, the sensor skeleton structure convenient for welding the resistor comprises a skeleton mounted on a shell of the sensor; the upper end of the framework is provided with an installing head, and the installing head is internally provided with a jack; a first contact pin is arranged in the jack; the first contact pin consists of a front contact pin and a rear contact pin; the front end contact pin is inserted in the jack; one end of the rear end contact pin, which is far away from the mounting head, is connected with the IC chip; a positioning piece arranged on the framework is arranged between the front end contact pin and the rear end contact pin; a positioning groove is arranged on the positioning piece; a resistor is clamped in the positioning groove; a first pin and a second pin are arranged at two ends of the resistor; a first fastener is arranged on the front end contact pin; a second fastener is arranged on the rear end contact pin, and clamping grooves are formed in the ends, far away from each other, of the first fastener and the second fastener; the first pin is reversely buckled in the clamping groove of the first fastener and is welded with the first fastener; the second pin is buckled in the clamping groove of the second fastener in a reverse mode and is welded with the second fastener.

Furthermore, the resistor is of a dip packaging structure, and the outer ring of the resistor is provided with dumbbell-like packaging.

Furthermore, the positioning piece is a plastic positioning piece and is installed on the framework in a hot riveting mode.

Furthermore, the first pin and the second pin are provided with bends. The purpose of bending is to prevent external force from being directly transmitted to the first pin, the second pin and the resistor in the welding process, so that stress concentration is caused, and durability and service life are reduced.

Furthermore, a second contact pin and a third contact pin are inserted in the mounting head; the front-end contact pin and the second contact pin, the second contact pin and the third contact pin, and the rear-end contact pin and the second contact pin are connected through connecting pieces; one end of the second pin and the third pin far away from the mounting head is connected with the IC chip.

Furthermore, an integrally injection-molded magnet is arranged in the framework on one side of the IC chip.

In addition, a flange package is mounted at the opening of the shell, one side of the flange package, which is far away from the shell, is provided with a socket, and the front-end contact pin, the second contact pin and the third contact pin penetrate through the mounting head and extend into the socket; a reinforcing ring is arranged on the flange package on one side of the interface; the opening part of casing is equipped with the round seal groove, installs the sealing washer in the seal groove.

It should be noted that, in the field, the series resistors between different pins have the same effect, and any technical solution of using the same technical means of the present invention to connect the series resistors between different pins belongs to the protection scope of the present invention.

According to the sensor framework structure convenient for welding the resistor, the positioning piece is directly arranged on the framework to fix the resistor, and the first pin and the second pin of the resistor are connected in a buckling mode through the arrangement of the first fastener and the second fastener. In the production and processing process, the resistor can be transported to the welding procedure after being positioned, and the positioned resistor cannot move in the transportation process and the welding procedure. Compared with the installation mode of the fixed resistor of the PCB, the installation method has the following beneficial effects:

the use of a high-price PCB is avoided, and the cost can be effectively reduced; the production process is simplified; the product has higher stability.

Drawings

Fig. 1 is a schematic overall structure diagram of a sensor skeleton structure.

Fig. 2 is a schematic view of the installation of the sensor skeleton structure.

Fig. 3 is a schematic overall structure diagram of the first pin, the second pin and the third pin.

Fig. 4 is a schematic structural diagram of a resistor and first and second leads.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and similar words are intended to mean that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.

To address the problems of the prior art, embodiments of the present invention provide a sensor skeleton structure that facilitates welding of a resistor.

Examples

A sensor skeleton structure convenient for welding resistance comprises a skeleton 2 arranged on a shell 1 of a sensor; the upper end of the framework 2 is provided with an installation head 3, and a jack is arranged in the installation head 3; a first contact pin is arranged in the jack; the first contact pin consists of a front contact pin 4 and a rear contact pin 5; the front end contact pin 4 is inserted in the jack; one end of the rear end pin 5 far away from the mounting head 3 is connected with an IC chip 6; a positioning piece 7 arranged on the framework 2 is arranged between the front end pin 4 and the rear end pin 5; a positioning groove is arranged on the positioning piece 7; a resistor 8 is clamped in the positioning groove; a first pin 9 and a second pin 10 are arranged at two ends of the resistor 8; the front end pin 4 is provided with a first fastener 11; a second fastener 12 is arranged on the rear end pin 5, and a clamping groove 13 is formed in the end, far away from the first fastener 11 and the second fastener 12, of each fastener; the first pin reverse 9 is buckled in a clamping groove 13 of the first fastener 11 and is welded with the first fastener 11; the second pin 10 is buckled in the slot 13 of the second fastener 12 and welded with the second fastener 12.

The resistor 8 is a dip packaging structure, and the outer ring of the resistor 8 is provided with dumbbell-like packaging.

The positioning piece 7 is a plastic positioning piece, and the positioning piece 7 is installed on the framework 2 in a hot riveting mode.

The first pin 9 and the second pin 10 are provided with bends 14. The purpose of the bends 14 is to prevent external forces from being directly transmitted to the first and second leads 9, 10 and the resistor 8 during soldering, resulting in stress concentration and reduced durability and service life.

The mounting head 3 is also inserted with a second pin 15 and a third pin 16; the front pin 4 and the second pin 15, the second pin 15 and the third pin 16, and the back pin 5 and the second pin 15 are connected through a connecting piece 17. The ends of the second pins 15 and the third pins 16 remote from the mounting head 3 are connected to the IC chip 6.

An integrally molded magnet 18 is also provided in the frame 2 on the IC chip 6 side.

An opening of the shell 1 is provided with a flange package 19, one side of the flange package 19 away from the shell 1 is provided with a socket 20, and the front pin 4, the second pin 5 and the third pin 16 penetrate through the mounting head 3 and extend into the socket 20.

A reinforcing ring 21 is provided on the flange seal 19 on the side of the socket 20.

A circle of sealing groove 22 is arranged at the opening of the shell 1, and a sealing ring 23 is arranged in the sealing groove.

The utility model positions a resistor 8 through a positioning piece 7, and the resistor 8 is connected in series on a first contact pin through a first pin 9 and a second pin 10 which are respectively connected with the resistor 8 through a first fastener 11 and a second fastener 12; so that higher EMC performance can be obtained.

Although the embodiments of the present invention have been described in detail hereinabove, it is apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it is to be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the following claims. Moreover, the utility model as described herein is capable of other embodiments and of being practiced or of being carried out in various ways.

Claims

1. A sensor skeleton structure convenient for welding resistance comprises a skeleton arranged on a shell of a sensor; the device is characterized in that the upper end of the framework is provided with an installing head, and a jack is arranged in the installing head; a first contact pin is arranged in the jack; the first contact pin consists of a front contact pin and a rear contact pin; the front end contact pin is inserted in the jack; one end of the rear end contact pin, which is far away from the mounting head, is connected with the IC chip; a positioning piece arranged on the framework is arranged between the front end contact pin and the rear end contact pin; a positioning groove is arranged on the positioning piece; a resistor is clamped in the positioning groove; a first pin and a second pin are arranged at two ends of the resistor; a first fastener is arranged on the front end contact pin; a second fastener is arranged on the rear end contact pin, and clamping grooves are formed in the ends, far away from each other, of the first fastener and the second fastener; the first pin is reversely buckled in the clamping groove of the first fastener and is welded with the first fastener; the second pin is buckled in the clamping groove of the second fastener in a reverse mode and is welded with the second fastener.

2. The sensor skeleton structure convenient for welding resistors of claim 1, wherein the resistor is in a dip packaging structure, and the outer ring of the resistor is provided with a dumbbell-like package.

3. The sensor framework structure convenient for welding the resistor as claimed in claim 2, wherein the positioning member is a plastic positioning member, and the positioning member is mounted on the framework by means of hot riveting.

4. The sensor skeleton structure convenient for welding resistance of claim 3, wherein the first pin and the second pin are provided with bends.

5. The sensor framework structure convenient for welding the resistor as claimed in claim 4, wherein a second pin and a third pin are further inserted on the mounting head; the front-end contact pin and the second contact pin, the second contact pin and the third contact pin, and the rear-end contact pin and the second contact pin are connected through connecting pieces; one end of the second pin and the third pin far away from the mounting head is connected with the IC chip.

6. The sensor skeleton structure convenient for welding resistance of claim 5, wherein the skeleton of one side of the IC chip is further provided with an integrally molded magnet.

7. The sensor framework structure convenient for welding the resistor as claimed in claim 6, wherein a flange package is mounted at the opening of the housing, a socket is arranged at one side of the flange package away from the housing, and the front pin, the second pin and the third pin penetrate through the mounting head and extend into the socket; a reinforcing ring is arranged on the flange package on one side of the interface; the opening part of casing is equipped with the round seal groove, installs the sealing washer in the seal groove.