CN202350944U - Integrated injection temperature sensor - Google Patents
Integrated injection temperature sensor Download PDFInfo
- Publication number
- CN202350944U CN202350944U CN2011204434868U CN201120443486U CN202350944U CN 202350944 U CN202350944 U CN 202350944U CN 2011204434868 U CN2011204434868 U CN 2011204434868U CN 201120443486 U CN201120443486 U CN 201120443486U CN 202350944 U CN202350944 U CN 202350944U
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- temperature sensor
- injection
- thermistor
- utility
- molded layers
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Abstract
The utility model discloses an integrated injection temperature sensor. The integrated injection temperature sensor comprises a thermistor which is connected with a signal line, wherein the periphery of the thermistor and the periphery of a connecting end of the thermistor and the signal line are provided with a first injection layer; a second injection layer is arranged outside the first injection layer; the first injection layer and the outer insulating leather layer of the signal line are made of the same material; and the second injection layer and the first injection layer are made of the same material. The temperature sensor, disclosed by the utility model, adopts two-layer injection, so that good sealing performance is obtained and service life of the temperature sensor is also improved greatly. The integrated injection temperature sensor, disclosed by the utility model, has the advantages of simple manufacturing process, low production cost and simple operation, and saves labor.
Description
Technical field
The utility model relates to the temperature detection field, particularly a kind of integral type injection temperature sensor.
Background technology
Temperature sensor is to be used for the electronic devices and components of temperature-sensitive, and nearly all electronic equipment all need use it to control temperature.Temperature sensor is widely used in every field.The temperature sensor of corresponding household appliances product, the traditional manufacturing technique of temperature sensor adopts epoxy resin enclosed and embedding thermistor and signal wire, seal and embedding after need baking-curing respectively, need tens hours altogether.Traditional handicraft; At least also need three people could accomplish steps such as dipping, baking, filling, baking; The long-time high-temperature baking of product has increased the hidden danger that resistance high temperature ageing resistance is drifted about, and generation oxidation or insulated hull are aging because toast for a long time for electric wire simultaneously.Temperature sensor is sealed and mostly embedding is manual operations, its complex process, and efficient is low, has improved the production of products cost greatly.
The utility model content
The purpose of the utility model embodiment is the defective to above-mentioned prior art, and the integral type injection temperature sensor that a kind of production efficiency is high, production cost is low is provided.
The technical scheme taked of the utility model is to achieve these goals:
A kind of integral type injection temperature sensor comprises thermistor, and said thermistor connects signal wire, and the periphery of the link of peripheral and the said thermistor and the said signal wire of said thermistor is provided with first injection molded layers.
Said first injection molded layers is provided with second injection molded layers outward.
Said first injection molded layers is identical with the material of the outer layer insulation skin of said signal wire.
The material of said second injection molded layers is identical with the material of said first injection molded layers.
The material of said first injection molded layers is an igelite.
Two signal wires that said thermistor connects are provided with an insulation sleeve outward.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
1. improve the sensor sealing:
Temperature sensor adopt with the signal wire outer layer insulation skin-deep with material package, after the machine injection is accomplished, seal material and reach fusion mutually with signal wire outer layer insulation skin, use the injection moulding mode simultaneously, can guarantee that material seals tightly, play good waterproof action.The double injection moulding has on the one hand guaranteed good sealing property, prevents simultaneously when excessive pressure from causing the temperature sensor moulding to have improved yield rate greatly because sealing of causing of resistance skew is bad.
2. improve serviceable life:
The manufacturing process of the utility model has been avoided the long-time high-temperature baking of product; The erasure signal line produces oxidation or the aging phenomenon of insulated hull because of long-time baking; The raising of sealing simultaneously; Prevent that effectively steam, dust from infiltrating thermal sensing element, better protection thermal sensing element and signal wire increase substantially the serviceable life of the utility model temperature sensor.
3. simple to operate, save artificial:
The method for making of the utility model only needs just can accomplish with a people work of sealing of sensor, and the work of visual testing simultaneously also can alleviate, defective products (bad like filling, dipping is bad, toast bad) also can thoroughly solve.
4. the flow process that simplifies the operation reduces cost:
The direct injection moulding encapsulation of the temperature sensor of the utility model no longer needs dipping, filling, baking, and especially baking needs tens hours, influenced production efficiency greatly, and electric cost is very high, and the manufacturing process of the utility model is simple, and production cost is low.
Description of drawings
Fig. 1 is the not structural representation before the injection moulding of the temperature sensor that provides of the utility model embodiment;
Fig. 2 is the structural representation of temperature sensor injection moulding first injection molded layers that provides of the utility model embodiment;
Fig. 3 is the structural representation of temperature sensor injection moulding second injection molded layers that provides of the utility model embodiment.
Among the figure: 1 thermistor, 2 signal wires, 3 first injection molded layers, 4 second injection molded layers, 5 insulation sleeves.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model embodiment is done to describe in detail further below.
Referring to Fig. 1 and Fig. 2, a kind of integral type injection temperature sensor comprises thermistor 1, and thermistor 1 connects signal wire 2, and the periphery of the link of the periphery of thermistor 1 and thermistor 1 signal wire 2 is provided with first injection molded layers 3.
The temperature sensor of the utility model, integrated injection molding has production efficiency height, advantage that production cost is low.
Referring to Fig. 3, first injection molded layers, 3 outer second injection molded layers 4 that are provided with.
The moulding of the utility model double injection; Guaranteed good sealing property on the one hand; Sealing that the resistance skew causes when preventing simultaneously that ground floor injection pressure control is excessive and causing the temperature sensor moulding is bad; Can adjust through second layer injection moulding, thereby improve yield rate greatly, also reach better sealing effectiveness.
As preferably, be provided with insulation sleeves 5 outside two signal wires 2 that thermistor 1 connects.
Referring to Fig. 3, first injection molded layers 3 is identical with the material of the outer layer insulation skin of signal wire 2.The material of second injection molded layers 4 is identical with the material of first injection molded layers 3.The material of first injection molded layers 3, second injection molded layers 4 and insulation sleeve 5 is all selected igelite for use.
First injection molded layers 3, second injection molded layers 4 are identical with the material of insulation sleeve 5, seal material after the injection moulding and can reach better with signal wire outer layer insulation skin and insulation sleeve 5 and merge the raising sealing effectiveness mutually.
In the utility model: thermistor: be used for the components and parts of temperature-sensitive, temperature variation is converted into change in resistance.
Signal wire: transmission resistance signal.
Injection machine: be used for the equipment of the outer encapsulating material of injection moulding sensor.
Mould: be divided into inner mold and outer mold, carry out twice injection moulding encapsulation, guarantee packaging effect for product.
Igelite: the outer materials of sealing of sensor.
The method for making of the integral type injection temperature sensor that the utility model provides may further comprise the steps:
(1) interior module injection molding: the link of thermistor and thermistor and signal wire is put into inner mold; Seal material through injection machine to adding in the inner mold; The link of thermistor and thermistor and signal wire is wrapped up fully, form first injection molded layers 3 (as shown in Figure 1) after the injection moulding, first injection molded layers 3 is wrapped up thermistor 1 fully; And thermistor 1 welding end with signal wire 2 wrapped up fully; First injection molded layers 3 is also suitably extended certain distance to signal wire 2 away from thermistor 1 one ends, the welding end of thermistor 1 with signal wire 2 is wrapped fully, makes the sealing of link better like this; In order to reach better injection moulding effect, the injection temperature that can control injection machine is 157-163 ℃, and preferably 160 ℃, injection pressure is 2.5-3.5MPa, preferably 3.0MPa.
(2) outer module injection molding: the product of internal module injection molding carries out secondary to be sealed, and the injection molding product of internal mold is put into outer mold, gives to add in the outer mold through injection machine and seals material, forms second injection molded layers in the periphery of first injection molded layers.
The said material of sealing is selected from PVC, ABS (Acrylonitrile Butadiene Styrene, acrylonitrile-butadiene-styrene copolymer) material, PC (Polycarbonate, polycarbonate) material, and present embodiment is preferably sealed material and is polyvinyl chloride powder.
The temperature sensor of the utility model adopts two-layer injection moulding, and good airproof performance also makes temperature sensor increase substantially serviceable life; The method of the utility model flow process that simplifies the operation reduces production costs, and has simple to operately, saves artificial advantage.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (6)
1. an integral type injection temperature sensor comprises thermistor, and said thermistor connects signal wire, it is characterized in that, the periphery of the link of peripheral and the said thermistor and the said signal wire of said thermistor is provided with first injection molded layers.
2. integral type injection temperature sensor according to claim 1 is characterized in that said first injection molded layers is provided with second injection molded layers outward.
3. integral type injection temperature sensor according to claim 1 and 2 is characterized in that, said first injection molded layers is identical with the material of the outer layer insulation skin of said signal wire.
4. integral type injection temperature sensor according to claim 2 is characterized in that the material of said second injection molded layers is identical with the material of said first injection molded layers.
5. integral type injection temperature sensor according to claim 4 is characterized in that the material of said first injection molded layers is an igelite.
6. integral type injection temperature sensor according to claim 1 is characterized in that, two signal wires that said thermistor connects are provided with an insulation sleeve outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204434868U CN202350944U (en) | 2011-11-10 | 2011-11-10 | Integrated injection temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204434868U CN202350944U (en) | 2011-11-10 | 2011-11-10 | Integrated injection temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202350944U true CN202350944U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204434868U Expired - Fee Related CN202350944U (en) | 2011-11-10 | 2011-11-10 | Integrated injection temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202350944U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393260A (en) * | 2011-11-10 | 2012-03-28 | 青岛旭瑞电子有限公司 | Integrated injection molding temperature sensor and manufacturing method thereof |
| CN104062027A (en) * | 2014-06-13 | 2014-09-24 | 安徽省宁国天成电工有限公司 | Temperature sensor for floor heating |
| CN107525555A (en) * | 2017-09-25 | 2017-12-29 | 昆山杰顺通精密组件有限公司 | Gas meter, flow meter waterproof temperature sensing device |
-
2011
- 2011-11-10 CN CN2011204434868U patent/CN202350944U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393260A (en) * | 2011-11-10 | 2012-03-28 | 青岛旭瑞电子有限公司 | Integrated injection molding temperature sensor and manufacturing method thereof |
| CN104062027A (en) * | 2014-06-13 | 2014-09-24 | 安徽省宁国天成电工有限公司 | Temperature sensor for floor heating |
| CN107525555A (en) * | 2017-09-25 | 2017-12-29 | 昆山杰顺通精密组件有限公司 | Gas meter, flow meter waterproof temperature sensing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20151110 |
|
| EXPY | Termination of patent right or utility model |