CN208889399U - A kind of safe thermistor of high sensitivity - Google Patents
A kind of safe thermistor of high sensitivity Download PDFInfo
- Publication number
- CN208889399U CN208889399U CN201821440515.3U CN201821440515U CN208889399U CN 208889399 U CN208889399 U CN 208889399U CN 201821440515 U CN201821440515 U CN 201821440515U CN 208889399 U CN208889399 U CN 208889399U
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- CN
- China
- Prior art keywords
- resistance wire
- connection resistance
- thermistor
- half shell
- glass half
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to resistance fields, more particularly to a kind of safe thermistor of high sensitivity, including protective case, left connection resistance wire and right connection resistance wire, protective case is located at the outermost end of glass half shell, protective case is wrapped in left connection resistance wire and right connection resistance wire exposes to the part outside glass half shell, glass half shell is internally provided with thermistor crystal, left connection resistance wire and right connection resistance wire are located at thermistor crystal two sides, and it is connect respectively by a sintered electrode with thermistor crystal, the electric current for flowing through left connection resistance wire and right connection resistance wire is flowed through from thermistor crystal；Fuse is connected among right connection resistance wire, fuse is welded in glass half shell；Glass half shell is attached by upper and lower component, the outer end of glass half shell forms sintering line by sintering, and the utility model increases fuse safety measure, and improves to the material in thermistor crystal, using two sintered electrode connection types, sensitivity is improved.
Description
Technical field
The utility model relates to resistance fields, and in particular to a kind of safe thermistor of high sensitivity.
Background technique
It is current on the market, thermistor is widely used as electronic element at many aspects, in control temperature electricity
Be widely applied in road, thermistor produce in enormous quantities old it is low, the increased resistance value of positive negative characteristic has very big application space, but
It is that when the temperature is excessively high, the variation range beyond resistance does not just have the effect of overload protection, and the accumulation of temperature is be easy to cause
The damage of electronic element, or even serious consequence is produced, lead to the damage of electronic equipment.
Utility model content
To solve the above problems, the utility model increases fuse safety measure, and to thermistor crystal
In material improve, using two sintered electrode connection types, improve sensitivity.
A kind of safe thermistor of high sensitivity, including protective case, left connection resistance wire and right connection resistance wire, the guarantor
Sheath is located at the outermost end of glass half shell, and one end of the left connection resistance wire exposes to outside the glass half shell, another
End is located in the glass half shell；One end of the right connection resistance wire exposes to outside the glass half shell, other end position
In in the glass half shell；The protective case is wrapped in the left connection resistance wire and the right connection resistance wire exposes to institute
The part outside glass half shell is stated, insulation is played；The glass half shell is internally provided with thermistor crystal, the left side
Connection resistance wire and the right connection resistance wire are located at thermistor crystal two sides, and pass through respectively sintered electrode and
The thermistor crystal connection flows through the left connection resistance wire and the right electric current for connecting resistance wire from the temperature-sensitive
Resistance crystal flows through；It is connected to fuse among the right connection resistance wire, the fuse is welded on the glass half shell
It is interior；The glass half shell is attached by upper and lower component, and the outer end of the glass half shell forms sintering line by sintering.
Preferably, the sintered electrode quantity is two, is welded on the thermistor crystal.
Preferably, the fuse is welded on the right connection resistance wire, allows electric current to pass through and play overload protection to make
With.
Preferably, the quantity of the protective case is two, is above coated with insulation anti-slip material.
Preferably, arc-shaped is presented in the glass half shell, and intermediate projections form cavity.
Preferably, the thermistor crystal is cylindrical, outer ceramic embedded material.
The utility model has the beneficial effects that the utility model provides a kind of safe thermistor of high sensitivity, machine is improved
Tool structure increases safety measure, and sintered electrode merges copper and mickel material, improves the variation range of resistance value, fuse
Increase and effectively prevents electronic equipment overheat and the excessive situation of electric current
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of the safe thermistor of high sensitivity of the utility model.
Fig. 2 is a kind of front view of the safe thermistor of high sensitivity of the utility model.
Fig. 3 is a kind of working principle diagram of the safe thermistor of high sensitivity of the utility model.
In figure: the left connection resistance wire of 1-；2- glass shell junction；3- protective case；4- sintering line；5- fuse；6- is right
Connect resistance wire；7- glass half shell；8- sintered electrode；9- thermistor crystal.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
As shown in Figure 1-3, a kind of safe thermistor of high sensitivity, including protective case 3, left connection resistance wire 1 and right company
Connecting resistance silk 6, the protective case 3 are located at the outermost end of glass half shell 7, and one end of the left connection resistance wire 1 exposes to institute
It states outside glass half shell 7, the other end is located in the glass half shell 7；One end of the right connection resistance wire 6 exposes to described
Outside glass half shell 7, the other end is located in the glass half shell 7.The protective case 3 is wrapped in left connection resistance wire 1 and the right side
Connection resistance wire 6 exposes to the part outside glass half shell 7, plays insulation.Glass half shell 7 is internally provided with temperature-sensitive electricity
Crystal 9 is hindered, left connection resistance wire 1 and right connection resistance wire 6 are located at 9 two sides of thermistor crystal, and pass through a sintering respectively
Electrode 8 is connect with thermistor crystal 9, and the electric current for flowing through left connection resistance wire 1 and right connection resistance wire 6 is electric from the temperature-sensitive
Resistance crystal 9 flows through；It is connected to fuse 5 among the right connection resistance wire 6, is welded in the glass half shell 7；The glass
Glass half shell 7 is attached by upper and lower component, and intermediate connections are glass shell junction 2,7 outer end of glass half shell
Sintering line 4 is formed by sintering.
8 quantity of sintered electrode is two, is welded on the thermistor crystal 9；The fuse 5 is welded on institute
It states on right connection resistance wire 6, electric current is allowed to pass through and play overload protective function；The quantity of the protective case 3 is two, is above coated with
Insulate anti-slip material；Arc-shaped is presented in the glass half shell 7, and intermediate projections form cavity；The thermistor crystal 9 is in circle
Column, outer ceramic embedded material.
Concrete operating principle: it as shown in Figure 1-3, first placing thermistor on circuit boards, will be wrapped in outside protective case 3
The left connection resistance wire 1 on side and right connection resistance wire 6 are welded on electric wire, and when an electric current passes through it, temperature increases, the temperature-sensitive electricity
Positive correlation trend is presented in resistance 9 resistance value of crystal as the temperature rises, and temperature is higher, and resistance is bigger, thus landing low current
Effect, declines temperature, protects overload facility, and when temperature is low, the resistance value of resistance is small, and electric current is kept in a certain range,
When overheat, fuse 5 fuses when resistance change is smaller, plays overload protective function, and sintered electrode 8 merges copper, and nickel material is adopted
With two sintered electrode connection types, sensitivity is improved.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modification, equivalent replacement or improvement etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (6)
1. a kind of safe thermistor of high sensitivity, it is characterised in that: including protective case, left connection resistance wire and right connection resistance
Silk, the protective case are located at the outermost end of glass half shell, and one end of the left connection resistance wire exposes to the glass half-shell
In vitro, the other end is located in the glass half shell；One end of the right connection resistance wire exposes to outside the glass half shell,
The other end is located in the glass half shell；The protective case is wrapped in the left connection resistance wire and the right connection resistance wire
The part outside the glass half shell is exposed to, insulation is played；The glass half shell is internally provided with thermistor crystalline substance
Body, the left connection resistance wire and the right connection resistance wire are located at thermistor crystal two sides, and pass through one respectively
Sintered electrode is connect with the thermistor crystal, flows through the electric current of the left connection resistance wire and the right connection resistance wire
It is flowed through from the thermistor crystal；Fuse is connected among the right connection resistance wire, the fuse is welded on described
In glass half shell；The glass half shell is attached by upper and lower component, and the outer end of the glass half shell passes through sintering
Form sintering line.
2. a kind of safe thermistor of high sensitivity according to claim 1, it is characterised in that: the sintered electrode quantity
It is two, is welded on the thermistor crystal.
3. a kind of safe thermistor of high sensitivity according to claim 1, it is characterised in that: the fuse is welded on
On the right connection resistance wire, electric current is allowed to pass through and play overload protective function.
4. a kind of safe thermistor of high sensitivity according to claim 1, it is characterised in that: the quantity of the protective case
It is two, is above coated with insulation anti-slip material.
5. a kind of safe thermistor of high sensitivity according to claim 1, it is characterised in that: the glass half shell is in
Existing arc-shaped, intermediate projections form cavity.
6. a kind of safe thermistor of high sensitivity according to claim 1, it is characterised in that: the thermistor crystal
It is cylindrical, outer ceramic embedded material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821440515.3U CN208889399U (en) | 2018-09-04 | 2018-09-04 | A kind of safe thermistor of high sensitivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821440515.3U CN208889399U (en) | 2018-09-04 | 2018-09-04 | A kind of safe thermistor of high sensitivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208889399U true CN208889399U (en) | 2019-05-21 |
Family
ID=66511057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821440515.3U Expired - Fee Related CN208889399U (en) | 2018-09-04 | 2018-09-04 | A kind of safe thermistor of high sensitivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208889399U (en) |
-
2018
- 2018-09-04 CN CN201821440515.3U patent/CN208889399U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190521 Termination date: 20200904 |