CN202281621U

CN202281621U - Precise row lead wire of NTC sensor

Info

Publication number: CN202281621U
Application number: CN2011201102288U
Authority: CN
Inventors: 邬若军
Original assignee: Shenzhen Ampron Technology Co Ltd
Current assignee: SHENZHEN AMPRON TECHNOLOGY CORPORATION
Priority date: 2011-04-12
Filing date: 2011-04-12
Publication date: 2012-06-20
Anticipated expiration: 2021-04-12

Abstract

A precise row lead wire of an NTC sensor is provided. An iron-nickel alloy belt with thickness of 0.12 to 0.15 mm is adopted, a precise die is used to punch the fence-shaped row lead wire, opposite pincerlike bayonets are punched on end parts of the lead wire for clamping NTC chips. The NTC chips and the end parts of the lead wire are melted and sealed by glass sleeves, and as welding processes are avoided, production efficiency is greatly enhanced, and product quality and stability are improved.

Description

The accurate townhouse lead-in wire of NTC sensor

Technical field:

The utility model relates to the pin configuration and the manufacturing process of NTC sensor, more particularly, and many NTC sensor leads that relate to a kind of precise forming, connect side by side.

Background technology:

The lead-in wire of traditional NTC sensor generally is to adopt manual work or semi automatic machine, with wire bonds to the electrode of NTC chip both sides.(has only 0.5 * 0.5mm because the yardstick of chip is very little ²) weld quite difficulty, quality also is difficult to guarantee.Adopt the townhouse lead-in wire of accurate punching out, can rely on the elastic force clamping NTC chip of lead-in wire end, and under the constraint of sealing the glass differential contraction stress, keep lead-in wire to contact with the good of NTC electrode.

The utility model content:

The accurate townhouse lead-in wire of NTC sensor by the thick iron-nickel alloy band of 0.12～0.15mm, utilizes the precision die punching out to become the townhouse lead-in wire of paliform, and the end punching out of lead-in wire becomes pincerlike bayonet socket facing each other to be used for clamping NTC chip.Adopt anchor clamps a plurality of NTC chips to be pushed simultaneously each pincerlike bayonet socket of townhouse lead-in wire; Entangle the lead-in wire end (pincerlike bayonet socket) of chip and clamping chip again with glass bushing; Insert in 600 ℃～700 ℃ tunnel caves and heated 0.5～1 minute; Make the glass bushing fusion, tight enclosing is lived NTC chip and lead-in wire end.Owing to removed welding sequence from, improved production efficiency greatly; Product quality and stability (do not weld flaw brought hidden danger of quality) have been improved.

Packaged NTC chip is connected together by the townhouse lead-in wire, adopts particular manufacturing craft that the coupling part punching is fallen, and becomes one by one independently NTC sensor.

Description of drawings:

The accurate townhouse lead-in wire of Fig. 1 .NTC sensor

Fig. 2. inserted the accurate townhouse lead-in wire of NTC chip

Fig. 3. accomplish NTC sensor and single NTC sensor that glass is honored as a queen and is still connected together

Embodiment:

Below in conjunction with accompanying drawing concrete embodiment is described: as shown in Figure 1, adopt iron nickel alloy strip (1) punching out to become the townhouse lead-in wire (3) of paliform, kept horizontal connecting band (4) between the lead-in wire, many parallel lead-in wires are connected as a single entity by equidistant.The end punching out of lead-in wire becomes pincerlike bayonet socket facing each other (2), and pincerlike bayonet socket is horn-like and opens slightly, is convenient to the NTC chip and inserts.Leave triangular hill (8) on the lead-in wire of pincerlike bayonet socket (2) below, in order to the position of restriction glass bushing.

Situation about being after townhouse lead-in wire (3) inserts NTC chips (5) shown in Figure 2, the NTC chip is by the elastic restoring force clamping of townhouse lead-in wire.

Utilize special tooling, glass bushing is entangled clamping respectively the lead-in wire end of chip (pincerlike bayonet socket), send into and be heated to the glass bushing fusion in the tunnel cave, chip and lead-in wire end are tightly wrapped, as shown in Figure 3, (6) are the glass encapsulating shell after the fusion.The differential contraction stress that produces during the glass bulb condensation end (pincerlike bayonet socket) that will go between is pressed on the electrode of NTC chip, keeps good electrical contact.

After glass encapsulating technology is accomplished, fall the coupling part between the NTC lead-in wire, form single NTC sensor (7) shown in Figure 3 with the particular manufacturing craft punching.

Claims

1.NTC the accurate townhouse lead-in wire of sensor becomes the townhouse of paliform to go between by the thick iron-nickel alloy band punching out of 0.12～0.15mm, it is characterized in that: the end punching out of lead-in wire becomes pincerlike bayonet socket facing each other (2) to be used for clamping NTC chip.

2. according to the accurate townhouse lead-in wire of the affiliated NTC sensor of claim, it is characterized in that: kept horizontal connecting band between the lead-in wire, many parallel lead-in wires are connected as a single entity by equidistant.

3. according to the accurate townhouse lead-in wire of the affiliated NTC sensor of claim, it is characterized in that: the pincerlike bayonet socket (2) of lead-in wire end is horn-like and opens, and is convenient to the NTC chip and inserts; Leave triangular hill (8) on the lead-in wire of pincerlike bayonet socket (2) below, in order to the position of restriction glass bushing.