CN202200508U

CN202200508U - Temperature sensing line

Info

Publication number: CN202200508U
Application number: CN201120336556XU
Authority: CN
Inventors: 李象烈
Original assignee: SINO MOULD COMPONENT (DONGGUAN) CO Ltd
Current assignee: SINO MOULD COMPONENT (DONGGUAN) CO Ltd
Priority date: 2011-09-08
Filing date: 2011-09-08
Publication date: 2012-04-25
Anticipated expiration: 2021-09-08

Abstract

The utility model relates to a temperature sensing line comprising a power source connecting line and a temperature detecting unit which are interconnected; the temperature sensing line also comprises a plastic high-temperature resistant shell which is directly formed at the periphery of a connecting place of the power source connecting line and the temperature detecting unit through injection molding; and the plastic high-temperature resistant shell is clung to and wraps up the periphery of the connecting place of the power source connecting line and the temperature detecting unit. As the plastic high-temperature resistant shell at the connecting place of the power source connecting line and the temperature detecting unit of the temperature sensing line is formed in a direct injection molding method, the thorough sealing is realized at the connecting place of the temperature detecting unit and the power source connecting line, and therefore, the temperature sensing line can meet very good damp-proof and anti-creeping requirements; and according to the temperature sensing line, manufacturing steps are less, the manufacturing process is simple and practicable, and the rate of defective products is low.

Description

Temp.-sensing wire

Technical field

The utility model relates to a kind of temp.-sensing wire, relates in particular to the temp.-sensing wire that uses on a kind of hot runner mould.

Background technology

Temp.-sensing wire is the vitals on the hot runner mould; In order to make temp.-sensing wire can reach certain moistureproof anticreep requirement; The electric power connection line on the existing temp.-sensing wire and the structure of junction, temperature detection unit are as shown in fig. 1; At first need after putting high temperature resistant braided tube 3 on the front end of this electric power connection line 1, put again Teflon plug sleeve 41 '; Then with electric

power connection line

1 and 2 welding of temperature detection unit, then again with stainless steel metal outer tube 42 ' be enclosed within on the good semi-finished product of welding, at last through forcing press with this stainless steel metal outer tube 42 ' compress.Yet; Its step of making moulding of the temp.-sensing wire of said structure is more; Process is comparatively complicated and product fraction defective that produce is also higher, and the temp.-sensing wire of this structure can not reach very high moistureproof requirement, is using and is depositing the influence that is easy in the process make moist and use.

Summary of the invention

The main purpose of the utility model is for the existing complex manufacturing process of the temp.-sensing wire that solves prior art, product fraction defective height and can not reaches the technical problem that very high protection against the tide requires.

In order to solve the problems of the technologies described above; The utility model provides a kind of temp.-sensing wire; Comprise interconnected electric power connection line and temperature detection unit; Also be included in a plastics high-temperature resistant shell of the direct injection mo(u)lding of periphery of said electric power connection line and junction, temperature detection unit, said plastics high-temperature resistant shell is adjacent to the periphery that wraps in said electric power connection line and junction, temperature detection unit.

Described temp.-sensing wire; Wherein, Said electric power connection line is a compensating wire, and said temperature detection unit comprises a metal probe and be arranged on the inner and probe connecting line that stretch out from the tail end of metal probe of said metal probe that said probe connecting line is connected with said compensating wire.

Described temp.-sensing wire, wherein, between said probe connecting line and the said compensating wire for being weldingly connected.

Described temp.-sensing wire, wherein, the quantity of said compensating wire and the probe connecting line that stretches out from the metal probe tail end is two.

Described temp.-sensing wire, wherein, the periphery of said compensating wire and said probe connecting line junction also is socketed with high temperature resistant braided tube, and said plastics high-temperature resistant shell wraps the periphery in said high temperature resistant braided tube.

The utlity model has following beneficial effect; The plastics high-temperature resistant shell of the junction of the electric power connection line of the temp.-sensing wire of the utility model and temperature detection unit has adopted the method for direct injection mo(u)lding; Thereby make the junction of temperature detection unit and electric power connection line realize thorough sealing; So can reach the anticreep requirement of good protection against the tide, and making step is few, manufacturing process is simple, the defective products rate is low.

Description of drawings

Fig. 1 is the internal structure sketch map of the temp.-sensing wire of prior art.

Fig. 2 is the internal structure sketch map of the temp.-sensing wire of the utility model.

The specific embodiment

For principle and the structure that further specifies the utility model, combine accompanying drawing that the preferred embodiment of the utility model is elaborated at present.

See also shown in Figure 2ly, the temp.-sensing wire of the utility model comprises electric power connection line 1, temperature detection unit 2 and a plastics high-temperature resistant shell 4, can also comprise a high temperature resistant braided tube 3.

Said electric power connection line 1 is a compensating wire, and the quantity that is provided with of said compensating wire is two shown in Fig. 2.

Said temperature detection unit 2 comprises a metal probe 21 and is arranged on the inner and probe connecting line 22 that stretch out from metal probe 21 tail ends of said metal probe 21, and the quantity of the said probe connecting line 22 that stretches out from said metal probe 21 tail ends is two.Said probe connecting line 22 is connected with said compensating wire 11, and this connected mode can be welding.

Said high temperature resistant braided tube 3 is enclosed within the periphery of said electric

power connection line

1 and 2 junctions, said temperature detection unit, that is the periphery of said compensating wire 11 and said probe connecting line 22 junctions.

Said plastics high-temperature resistant shell 4 is adjacent to and wraps in said electric power connection line 1 and the junction of said temperature detection unit 2 and the periphery of said high temperature resistant braided tube 3; Specifically, said plastics high-temperature resistant shell 4 wraps the periphery in said compensating wire 11, said probe connecting line 22 and said high temperature resistant braided tube 3.

The making step of the temp.-sensing wire of said structure specifically describes as follows: at first, make said electric power connection line 1 and the compensating wire 11 of its front end is exposed outside, cut said temperature detection unit 2 simultaneously, make said probe connecting line 22 stretch out from tail end; Secondly, on said compensating wire 11, overlap the above high temperature resistant braided tube 3, and said compensating wire 11 is weldingly connected with said probe connecting line 22; At last, the semi-finished product that welding is good are put into injection forming mold, at the said plastics high-temperature resistant shell 4 of the direct injection mo(u)lding of periphery of said compensating wire 11, said probe connecting line 22 and said high temperature resistant braided tube 3.

The plastics high-temperature resistant shell of the junction of the electric power connection line of the temp.-sensing wire of the utility model and temperature detection unit has adopted the method for direct injection mo(u)lding; Thereby make the junction of temperature detection unit and electric power connection line realize thorough sealing; So can reach the anticreep requirement of good protection against the tide, and making step is few, manufacturing process is simple, the defective products rate is low.

Yet; The above is merely the preferable possible embodiments of the utility model; And the protection domain of unrestricted the utility model, so the equivalent structure that all utilization the utility model specifications and accompanying drawing content have been done changes, all be included in the protection domain of the utility model.

Claims

1. temp.-sensing wire; Comprise interconnected electric power connection line and temperature detection unit; It is characterized in that; Also be included in a plastics high-temperature resistant shell of the direct injection mo(u)lding of periphery of said electric power connection line and junction, temperature detection unit, said plastics high-temperature resistant shell is adjacent to the periphery that wraps in said electric power connection line and junction, temperature detection unit.

2. temp.-sensing wire according to claim 1; It is characterized in that; Said electric power connection line is a compensating wire; Said temperature detection unit comprises a metal probe and is arranged on the inner and probe connecting line that stretch out from the tail end of metal probe of said metal probe that said probe connecting line is connected with said compensating wire.

3. temp.-sensing wire according to claim 2 is characterized in that, between said probe connecting line and the said compensating wire for being weldingly connected.

4. temp.-sensing wire according to claim 2 is characterized in that, the quantity of said compensating wire and the probe connecting line that stretches out from the metal probe tail end is two.

5. temp.-sensing wire according to claim 2 is characterized in that, the periphery of said compensating wire and said probe connecting line junction also is socketed with high temperature resistant braided tube, and said plastics high-temperature resistant shell wraps the periphery in said high temperature resistant braided tube.