CN103295708A - Recyclable NTC (negative temperature coefficient) thermistor - Google Patents
Recyclable NTC (negative temperature coefficient) thermistor Download PDFInfo
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- CN103295708A CN103295708A CN2012100534230A CN201210053423A CN103295708A CN 103295708 A CN103295708 A CN 103295708A CN 2012100534230 A CN2012100534230 A CN 2012100534230A CN 201210053423 A CN201210053423 A CN 201210053423A CN 103295708 A CN103295708 A CN 103295708A
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Abstract
The invention relates to a recyclable NTC (negative temperature coefficient) thermistor. The recyclable NTC thermistor comprises an NTC thermistor chip, a clamping device and an anti-oxidation cover which is detachably connected with the clamping device in a sealing way, wherein the NTC thermistor chip is installed on the clamping device and arranged in a sealed cavity which is formed between the anti-oxidation cover and the clamping device. The anti-oxidation cover consists of a sleeve, a piston, a return spring and an end cover, wherein the piston is arranged inside the sleeve, the end cover is connected with the top end of the sleeve, and the return spring is arranged between the piston and the end cover; the clamping device is detachably connected to the bottom end of the sleeve in a sealing way. The recyclable NTC thermistor has the beneficial effects that a packaging structure which is convenient to dismount is used for packaging the NTC thermistor chip, so that the NTC thermistor chip can be conveniently recycled after being scraped, different oxides in the chip of an NTC product and mineral resources in an end electrode such as precious metal silver can be recycled, and the resource can be saved.
Description
[technical field]
The present invention relates to a kind of NTC thermistor, particularly a kind of recoverable version NTC thermistor of recyclable utilization.
[background technology]
The NTC thermistor is negative tempperature coefficient thermistor, its chip is that two or more metal oxide such as manganese, copper, silicon, cobalt, iron, nickel, zinc is the semiconductive ceramic that technology manufacturings such as main material fully mixes, moulding, sintering form, these materials all obtain from mineral, belong to non-renewable resources, just do not mean that these resources will be consumed so do not reclaim.
Present NTC product commonly used, the NTC thermistor chip is made with materials such as epoxy resin, silicones or packaged glass parcel and after solidifying, because being wrapped in these outer packaging material of chip is not easy to separate with the NTC thermistor chip, so the NTC thermistor chip is not easy to recycle in the product, so generally for defect ware, all do not carry out reclaimer operation, even and this series products reclaims by special processing, the cost of resources such as the human and material resources that consume also can be far above the raw-material cost of direct purchase.
[summary of the invention]
The objective of the invention is to overcome deficiency of the prior art, provide a kind of and can reclaim and reclaim recoverable version NTC thermistor easily to the NTC thermistor chip.
The object of the present invention is achieved like this: comprise NTC thermistor chip, clamping device and an anti-oxidation cover that is connected with the clamping device removable seal, described NTC thermistor chip is installed on the clamping device, between anti-oxidation cover and clamping device in the formed annular seal space.
Preferably, described anti-oxidation cover is made up of sleeve, piston, back-moving spring and end cap, and described piston is arranged in the sleeve, and described end cap is connected with the sleeve top, and described back-moving spring is connected between piston and the end cap; Described clamping device removable seal is connected in the sleeve bottom, and described NTC thermistor chip is positioned at sleeve.
Preferably, described clamping device comprises the cylindrical base that a making leaf spring and is made by insulating material, described base removable seal is connected in the sleeve bottom, the rotatable edge that is connected in base top surface of one end of described making leaf spring, the center of described base top surface is respectively equipped with a corresponding electrode with the other end of making leaf spring, and described NTC thermistor chip level is held between two electrodes.
Preferably, the electrode on the described making leaf spring is hemispherical dome structure, and the breach planar horizontal faces the NTC thermistor chip down, fits with the NTC thermistor chip.
Preferably, the electrode on the described base is cylindrical structural, and end face is a horizontal plane, fits with the NTC thermistor chip.
Preferably, described base edge raises up, and is higher than the base electrode top, and the holding tank of NTC thermistor chip is held in formation one.
Preferably, described clamping device comprises the cylindrical base that depression bar that two elastomeric materials are made and is made by insulating material, described base removable seal is connected in the sleeve bottom, described base top surface intermediate projections one boss, described two depression bar bottoms penetrate base and are stretched out by the bottom surface, the corresponding both sides that lay respectively at boss are fixed, the top tilts to middle boss direction, described two depression bar tops are provided with bump electrode mutually to the inside, described NTC thermistor chip is vertically placed on the boss end face, is gripped by the bump electrode on two depression bars.
Preferably, described boss end face centre position is provided with a groove that adapts with NTC thermistor chip edge, and described NTC thermistor chip is vertically placed on the groove.
Preferably, described bump electrode is spherical structure, contacts for putting with the surface of NTC thermistor chip during its clamping NTC thermistor chip.
Compared with prior art, the invention has the beneficial effects as follows:
One, by adopting to come the NTC thermistor chip is encapsulated by encapsulating structure for convenience detach, scrapping the back at the NTC thermistor chip just can reclaim it very easily, various oxides in the chip in the NTC product and the mineral resources such as noble metal silver in the termination electrode can be recycled again, economize on resources.
Its two, anti-oxidation cover adopts piston cylinder operator, utilizes to add piston in sleeve, circumference gas causes the annular seal space internal pressure excessive and break when making spatially-variableization in the annular seal space avoid the work of NTC thermistor chip.
They are three years old, clamping device can be selected the formula of lying low or vertical type, when employing lies low the formula clamping device, NTC thermistor chip level is held between making leaf spring electrode and the base electrode, its with two electrodes between to contact be the plane, contact area is bigger, is used in the product that needs in the actual use by big electric current; When adopting the vertical type clamping device, have two depression bars, when the NTC thermistor chip is installed, directly be pressed into the NTC thermistor chip between two depression bars and be pressed in the groove on the base boss, gripped by the bump electrode on two depression bars, it is very convenient to lay and take out product; Bump electrode is taked spherical structure, has reduced when laying and taking out the NTC thermistor chip scraping between itself and the bump electrode; Because bump electrode is point-like with contacting of NTC thermistor chip, contact area is little, and the situation of point discharge takes place when energising easily, is applicable to experiment and the research and development of product, be equivalent to make harshization of product experiment condition to be measured, help to find the potential quality problems of product.
[description of drawings]
Fig. 1 is the structural representation of first embodiment of the invention;
Fig. 2 is the vertical view of clamping device when clamping NTC thermistor chip of first embodiment of the invention;
Fig. 3 is the front view of clamping device when clamping NTC thermistor chip of first embodiment of the invention;
Fig. 4 is the structural representation of second embodiment of the invention;
Fig. 5 a is the clamping device front view of second embodiment of the invention;
Fig. 5 b is the clamping device vertical view of second embodiment of the invention;
Fig. 6 a is the front view of clamping device when clamping NTC thermistor chip of second embodiment of the invention;
Fig. 6 b is the end view of clamping device when clamping NTC thermistor chip of second embodiment of the invention.
[embodiment]
Below in conjunction with the drawings and the specific embodiments the present invention is described further:
First embodiment
As shown in Figure 1 to Figure 3, recoverable version NTC thermistor of the present invention is made up of clamping device 1, anti-oxidation cover 2 and NTC thermistor chip 3; Described NTC thermistor chip 3 is wafer-type, described clamping device 1 comprises the cylindrical base 11 that a making leaf spring 12 and is made by insulating material, one end of making leaf spring 12 is by a trip bolt 13 rotatable edges that are fixed in base 11 end faces, the center of described base 11 end faces is provided with a base electrode 14, and the other end of described making leaf spring 12 is provided with a making leaf spring electrode 15 corresponding with base electrode 14; Described base electrode 14 is cylindrical structural, and end face is horizontal plane; Described making leaf spring electrode 15 is hemispherical dome structure, and the breach planar horizontal is corresponding with base electrode 14 down; Described NTC thermistor chip 3 levels are held between base electrode 14 and the making leaf spring electrode 15, described making leaf spring electrode 15 and base electrode 14 are fitted with NTC thermistor chip 3 plane contact, contact area is bigger, and needs are by the product of big electric current in suitable actual the use; The edge 16 of described base 11 certain altitude that raises up is higher than the top of base electrode 14, the middle holding tank 17 that holds NTC thermistor chip 3 that forms, and 17 pairs of NTC thermistor chips 3 of described holding tank play spacing fixation.Described anti-oxidation cover 2 comprises sleeve 21, piston 22, back-moving spring 24 and end cap 23, described piston 22 is arranged in the sleeve 21, described end cap 23 is connected in the top of sleeve 21, and described back-moving spring 24 is connected between piston 22 and the end cap 23, and described base 11 is sealedly attached to the bottom of sleeve 21; For ease of installation and removal, sleeve 21 and base 11, and between sleeve 21 and the end cap 23, can close-fitting mode interconnect with screw thread or other; Form an annular seal space between described sleeve 21 and base 11 and the piston 22, described NTC thermistor chip 3 is positioned at the sealing chamber, air and outside air in the NTC thermistor chip 3 residing chambers are isolated, thereby avoided the termination electrode silver of NTC thermistor chip 3 to continue oxidation, thereby make the electrode contact good, guarantee the favorable conductive ability; Because a wherein sealed end of annular seal space is piston, so its space is transformable.
During concrete the use, when installing or take out NTC thermistor chip 3, being connected between the sleeve 21 that unclamps anti-oxidation cover 2 earlier and the base 11, make making leaf spring electrode 15 shift out the holding tank 17 of base by rotation making leaf spring 12, perhaps unclamp the fixedly trip bolt 13 of making leaf spring 12, take off making leaf spring 12, waste and old NTC thermistor chip 3 is changed into new, retract or load onto making leaf spring 12 afterwards and make its clamping NTC thermistor chip 3; When the NTC thermistor chip because of overcurrent or select improper burning for use, cause jigs electrode to burn oxidation simultaneously or when adhering to the NTC fragment, detachable making leaf spring is to its grinding process or with renewing the useful life of having improved product.
Second embodiment
As shown in Figure 4, the structural representation of the second embodiment of the present invention, the difference of described second embodiment and first embodiment is that the structure of clamping device 1 and NTC thermistor chip 3 are installed on the mode on the clamping device 1; Shown in a, the b of Fig. 5, the structural representation of the clamping device 1 of second embodiment of the invention, described clamping device 1 comprise and base 11 and two depression bars 18 that elastomeric material is made, described base 11 end face intermediate projections one boss 111; The bottom of described two depression bars 18 penetrates base 11 and is stretched out by the bottom surface, lay respectively at the corresponding both sides of boss, fixing by the trip bolt 13 on base 11 sides, the top tilts to middle boss 111 directions, described two depression bars 18 tops are provided with mutually bump electrode 19 to the inside, and described boss 111 end face centre positions are provided with a groove 112 that adapts with NTC thermistor chip 3 edges.During use, shown in a, the b of Fig. 6, NTC thermistor 3 vertically is pressed between two depression bars 18, and is pressed in the groove 112 of boss 111, gripped by the bump electrode 19 on two depression bars, 18 tops; Scraping when laying and taking out NTC thermistor chip 3 for minimizing between itself and the bump electrode 19, described bump electrode 19 is spherical structure, it is point-like with contacting of NTC thermistor chip 3, contact area is little, point discharge takes place easily in when energising, thus needing in the actual use to be not suitable for the product by big electric current, but be used as when testing purposes, be equivalent to make harshization of product experiment condition to be measured, help to find the potential mass defect of product.
As shown in Figure 1 and Figure 4, be provided with a step 25 in the sleeve 21, the position of described step 25 is higher than the top of base 11 and NTC thermistor chip 3, is used for limited piston 22, avoids piston 22 and base 11 and NTC thermistor chip 3 to collide and causes damaging.
In sum, because the core in the NTC product is the NTC thermistor chip, so the present invention by adopt can be for convenience detach encapsulating structure replace in the past encapsulated layer, can reclaim various oxides in the chip in the NTC product and the noble metal silver in the termination electrode very easily, save or the non-renewable mineral resources of part of having regenerated.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the present invention is not limited to also should fall in the protection range of claim of the present invention modifications and changes more of the present invention.In addition, although used some specific terms in this specification, these terms do not constitute any restriction to the present invention just for convenience of description.
Claims (9)
1. recoverable version NTC thermistor, it is characterized in that: comprise NTC thermistor chip, clamping device and an anti-oxidation cover that is connected with the clamping device removable seal, described NTC thermistor chip is installed on the clamping device, between anti-oxidation cover and clamping device in the formed annular seal space.
2. recoverable version NTC thermistor according to claim 1, it is characterized in that: described anti-oxidation cover is made up of sleeve, piston, back-moving spring and end cap, described piston is arranged in the sleeve, and described end cap is connected with the sleeve top, and described back-moving spring is connected between piston and the end cap; Described clamping device removable seal is connected in the sleeve bottom, and described NTC thermistor chip is positioned at sleeve.
3. recoverable version NTC thermistor according to claim 1 and 2, it is characterized in that: described clamping device comprises the cylindrical base that a making leaf spring and is made by insulating material, described base removable seal is connected in the sleeve bottom, the rotatable edge that is connected in base top surface of one end of described making leaf spring, the center of described base top surface is respectively equipped with a corresponding electrode with the other end of making leaf spring, and described NTC thermistor chip level is held between two electrodes.
4. recoverable version NTC thermistor according to claim 3, it is characterized in that: the electrode on the described making leaf spring is hemispherical dome structure, the breach planar horizontal faces the NTC thermistor chip down, fits with the NTC thermistor chip.
5. recoverable version NTC thermistor according to claim 3, it is characterized in that: the electrode on the described base is cylindrical structural, end face is a horizontal plane, fits with the NTC thermistor chip.
6. recoverable version NTC thermistor according to claim 3, it is characterized in that: described base edge raises up, and is higher than the base electrode top, forms a holding tank that holds the NTC thermistor chip.
7. recoverable version NTC thermistor according to claim 1 and 2, it is characterized in that: described clamping device comprises the cylindrical base that depression bar that two elastomeric materials are made and is made by insulating material, described base removable seal is connected in the sleeve bottom, described base top surface intermediate projections one boss, described two depression bar bottoms penetrate base and are stretched out by the bottom surface, the corresponding both sides that lay respectively at boss are fixed, the top tilts to middle boss direction, described two depression bar tops are provided with bump electrode mutually to the inside, when the NTC thermistor chip is vertically placed on the boss end face, gripped by the bump electrode on two depression bars.
8. recoverable version NTC thermistor according to claim 7 is characterized in that: described boss end face centre position is provided with a groove that adapts with NTC thermistor chip edge, and described NTC thermistor chip is vertically placed on the groove.
9. recoverable version NTC thermistor according to claim 7, it is characterized in that: described bump electrode is spherical structure, contacts for point with the surface of NTC thermistor chip during its clamping NTC thermistor chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210053423.0A CN103295708B (en) | 2012-03-02 | 2012-03-02 | Recoverable version NTC thermistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210053423.0A CN103295708B (en) | 2012-03-02 | 2012-03-02 | Recoverable version NTC thermistor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103295708A true CN103295708A (en) | 2013-09-11 |
| CN103295708B CN103295708B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210053423.0A Active CN103295708B (en) | 2012-03-02 | 2012-03-02 | Recoverable version NTC thermistor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417327A (en) * | 2018-03-12 | 2018-08-17 | 安徽晶格尔电子有限公司 | A kind of fixation kit for combining thermal resistor |
| CN113380479A (en) * | 2021-06-09 | 2021-09-10 | 深圳市科敏传感器有限公司 | High-temperature-resistant waterproof chip type high-molecular NTC thermistor |
| CN113470909A (en) * | 2021-06-25 | 2021-10-01 | 深圳市久喜电子有限公司 | Recoverable NTC thermistor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5142265A (en) * | 1990-04-05 | 1992-08-25 | Nippon Oil & Fats Co., Ltd. | Positive temperature coefficient thermistor device |
| US20110068890A1 (en) * | 2008-03-12 | 2011-03-24 | University Of Electronic Science And Technology Of China | Ntc thin film thermal resistor and a method of producing it |
| CN102129899A (en) * | 2010-12-17 | 2011-07-20 | 深圳顺络电子股份有限公司 | Low-resistance chip type negative temperature coefficient thermistor in vertical structure and manufacturing method thereof |
| CN102789857A (en) * | 2012-08-01 | 2012-11-21 | 孝感华工高理电子有限公司 | Small NTC (Negative Temperature Coefficient) thermistor with glass-sealed diode structure and preparation method thereof |
-
2012
- 2012-03-02 CN CN201210053423.0A patent/CN103295708B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5142265A (en) * | 1990-04-05 | 1992-08-25 | Nippon Oil & Fats Co., Ltd. | Positive temperature coefficient thermistor device |
| US20110068890A1 (en) * | 2008-03-12 | 2011-03-24 | University Of Electronic Science And Technology Of China | Ntc thin film thermal resistor and a method of producing it |
| CN102129899A (en) * | 2010-12-17 | 2011-07-20 | 深圳顺络电子股份有限公司 | Low-resistance chip type negative temperature coefficient thermistor in vertical structure and manufacturing method thereof |
| CN102789857A (en) * | 2012-08-01 | 2012-11-21 | 孝感华工高理电子有限公司 | Small NTC (Negative Temperature Coefficient) thermistor with glass-sealed diode structure and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417327A (en) * | 2018-03-12 | 2018-08-17 | 安徽晶格尔电子有限公司 | A kind of fixation kit for combining thermal resistor |
| CN113380479A (en) * | 2021-06-09 | 2021-09-10 | 深圳市科敏传感器有限公司 | High-temperature-resistant waterproof chip type high-molecular NTC thermistor |
| CN113380479B (en) * | 2021-06-09 | 2022-05-17 | 深圳市科敏传感器有限公司 | High-temperature-resistant waterproof chip type high-molecular NTC thermistor |
| CN113470909A (en) * | 2021-06-25 | 2021-10-01 | 深圳市久喜电子有限公司 | Recoverable NTC thermistor |
| CN113470909B (en) * | 2021-06-25 | 2022-04-19 | 深圳市久喜电子有限公司 | Recoverable NTC thermistor |
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| Publication number | Publication date |
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| CN103295708B (en) | 2016-01-06 |
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