CN206331921U - Thin film capacitor with self-protection structure - Google Patents
Thin film capacitor with self-protection structure Download PDFInfo
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- CN206331921U CN206331921U CN201621034914.0U CN201621034914U CN206331921U CN 206331921 U CN206331921 U CN 206331921U CN 201621034914 U CN201621034914 U CN 201621034914U CN 206331921 U CN206331921 U CN 206331921U
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- fixture block
- self
- protection structure
- main body
- core bag
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Abstract
This application discloses a kind of thin film capacitor with self-protection structure; including core bag; core bag includes being arranged at the through hole inside core bag; self-protection structure is provided with through hole; self-protection structure includes the first temperature detect switch (TDS); first temperature detect switch (TDS) is open type, and positive pole of first temperature detect switch (TDS) respectively with core bag is electrically connected with negative pole.The thin film capacitor for the self-protection structure that the utility model is provided; by being provided with self-protection structure in the through hole of core bag; self-protection structure includes open type temperature detect switch (TDS); positive pole of first temperature detect switch (TDS) respectively with core bag is electrically connected with negative pole; normally used when enabling the temperature in core bag under the desired temperature of temperature switch; if the temperature in core bag is on the desired temperature of temperature switch; temperature switch is closed; so that the both positive and negative polarity of core bag is directly electrically connected to form short circuit, so as to be protected to thin film capacitor.
Description
Technical field
The disclosure relates generally to electronic component technology field, and in particular to thin film capacitor, more particularly to is protected with self
The thin film capacitor of protection structure.
Background technology
Capacitor is a kind of device for being used for accommodating electric charge, is widely used in the separated by direct communication in circuit, couples, bypass,
Filtering, resonant tank, energy conversion, in terms of control, current capacitor be the electronic component that largely uses in electronic equipment it
One.Capacitor is developed so far, and has formed numerous kinds, such as aluminium electrolutic capacitor, ceramic capacitor, thin film capacitor.Its
Middle thin-film capacitor is in the commissure of analog signal, and the place such as the bypass of power supply noise is widely used, favored by market.
Thin film capacitor generally comprises shell, the core bag positioned at enclosure and the both positive and negative polarity electrically connected with core bag is drawn
Terminal, and both positive and negative polarity leading-out terminal is located at one end of capacitor.Work of the thin film capacitor in the factor such as long-term use or environment
Under, substantial amounts of heat and itself heating can be produced, the performance of thin film capacitor is had a strong impact on, or even thin film capacitor is damaged
It is bad, bring potential safety hazard.
Utility model content
In view of drawbacks described above of the prior art or deficiency, expect to provide a kind of thin-film capacitor with self-protection structure
Device.
The utility model provides a kind of thin film capacitor with self-protection structure, including core bag, and core bag includes setting
Self-protection structure is provided with through hole inside core bag, through hole, self-protection structure includes the first temperature detect switch (TDS), the first temperature control
Switch as open type, positive pole of first temperature detect switch (TDS) respectively with core bag is electrically connected with negative pole.
The thin film capacitor for the self-protection structure that the utility model is provided, by being protected in the through hole of core bag provided with self
Protection structure, self-protection structure includes open type temperature detect switch (TDS), and the first temperature detect switch (TDS) is electrically connected with the positive pole of core bag with negative pole respectively
Connect so that can normally be used when temperature in core bag is under the desired temperature of temperature switch, if the temperature in core bag exists
When on the desired temperature of temperature switch, temperature switch closure so that the both positive and negative polarity of core bag is directly electrically connected to form short circuit, from
And thin film capacitor is protected.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon：
The thin film capacitor structure schematic diagram with self-protection structure that Fig. 1 provides for the utility model embodiment.
Embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining relevant utility model, rather than the restriction to the utility model.Further need exist for explanation
, for the ease of description, the part related to utility model is illustrate only in accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 is refer to, the present embodiment provides a kind of thin film capacitor with self-protection structure, including core bag 1, core bag
1 is included being arranged at provided with self-protection structure in the through hole 11 inside core bag 1, through hole 11, and self-protection structure includes the first temperature
Control switch 2, the first temperature detect switch (TDS) 2 is open type, and positive pole of first temperature detect switch (TDS) 2 respectively with core bag 1 is electrically connected with negative pole.
The thin film capacitor for the self-protection structure that the present embodiment is provided, by being provided with self in the through hole 11 in core bag 1
Protection structure, self-protection structure includes open type temperature detect switch (TDS), the positive pole and negative pole of the first temperature detect switch (TDS) 2 respectively with core bag 1
Electrical connection so that can normally be used when temperature in core bag 1 is under the desired temperature of temperature switch, if in core bag 1
When temperature is on the desired temperature of temperature switch, temperature switch closure so that the both positive and negative polarity of core bag 1 is directly electrically connected to form
Short circuit, so as to be protected to thin film capacitor.
Preferably, the thin film capacitor with self-protection structure also includes positive pole leading-out terminal 3 and negative pole leading-out terminal
4, the second temperature detect switch (TDS) 5 is electrically connected between core bag 1 and positive pole leading-out terminal 3, the second temperature detect switch (TDS) 5 is closed type；Or core
The second temperature detect switch (TDS) 5 is electrically connected between bag 1 and negative pole leading-out terminal 4, the second temperature detect switch (TDS) 5 is closed type.
In the present embodiment, the second temperature detect switch (TDS) 5 is directly connected electrically between core bag 1 and positive pole leading-out terminal 3, here just
Pole leading-out terminal 3 refers to the part that the positive pole of each core bag 1 is formed after being respectively connected together, i.e., one the second temperature detect switch (TDS) 5
The positive pole with each core bag 1 in thin film capacitor is electrically connected respectively.
Or, the second temperature detect switch (TDS) 5 is directly connected electrically between core bag 1 and negative pole leading-out terminal 4, here negative pole exit
Son 4 refer to the negative pole of each core bag 1 be respectively connected together after the part that is formed, i.e., one the second temperature detect switch (TDS) 5 respectively with it is thin
The negative pole electrical connection of each core bag 1 in membrane capacitance.
In above-mentioned two embodiments arranged side by side, the second temperature detect switch (TDS) 5 is closed type so that temperature is in temperature in thin film capacitor
Setting value can be used normally the following is thin film capacitor.When temperature is more than desired temperature in thin film capacitor, second
Temperature switch will disconnect, and form short circuit, and then carry out self-protection to thin film capacitor.Preferably, first temperature detect switch (TDS) 2
Set temperature value is 85 DEG C or 105 DEG C, and the set temperature value of the second temperature detect switch (TDS) 5 is 85 DEG C or 105 DEG C.
Preferably, provided with 1-4 core bag 1 in housing.
In the present embodiment, 1-4 core bag 1, and the interval setting, and coaxial setting from top to bottom of core bag 1 are provided with housing,
It is easy to location and installation.Wherein, self-protection structure, and the axis vertical of through hole 11 can be all provided with the through hole 11 of each core bag 1
Overlap downwards and with the axis of core bag 1.
Preferably, positive pole leading-out terminal 3 all upwardly extends the fixture block 6 of more than 1 with the top of negative pole leading-out terminal 4,
Be welded with copper bar 7 on fixture block 6, fixture block 6 includes the terminal cover 61 away from electrode leads to client portion, and positioned at electrode leads to client portion with
Fixture block main body 62 between terminal cover 61, copper bar 7 be sheathed on the outer surface of each fixture block main body 62 and at least with each terminal
Lid 61 is welded, and terminal cover 61 is used to limit the disengaging fixture block of copper bar 7 main body 62.
In the present embodiment, positive pole leading-out terminal 3 upwardly extends the card of more than 1 with the top of negative pole leading-out terminal 4
Block 6, fixture block 6 includes the terminal cover 61 that end is drawn away from counter electrode, and draws end and terminal cover positioned at counter electrode
Fixture block main body 62 between 61, copper bar 7 is sheathed on the outer surface of each fixture block main body 62 and at least welded with each terminal cover 61
Connect, be not only convenient for staff to the welding between copper bar 7 and electrode leads to client portion, while using fixture block main body 62 to copper bar 7
The cooperation for the constraint that the constraint of left and right directions motion and terminal cover 61 are moved to the above-below direction of copper bar 7, adds copper bar 7 and electricity
The firm welding between end is drawn in pole, also so that between copper bar 7 and fixture block 6 in the case of weld failure, being also avoided that
Copper bar 7 departs from electrode leads to client portion, with high connective stability.
Electrode leads to client portion as described herein is positive pole leading-out terminal 3 and negative pole leading-out terminal 4.
Preferably, terminal cover 61 includes the first cover plate for protruding from fixture block main body 62, and the first cover plate is projected in vertical direction
Length be more than with the first cover plate be located at same vertical direction fixture block main body 62 and copper bar 7 between gap length.
In the present embodiment, " protrusion " refers to that the projection of the first cover plate in vertical direction downwards exists with the top of fixture block main body 62
The projection of vertical direction downwards is misaligned.First cover plate is more than in the length that vertical direction is projected and is located at same erect with the first cover plate
Nogata to fixture block main body 62 and copper bar 7 between gap length, i.e., after weld failure, copper bar 7 is in direction straight up
It can be hit during motion with the first cover plate so that copper bar 7 can not be continued up, it is to avoid copper bar 7 departs from fixture block 6.Should in production
In, what copper bar 7 had a smaller angle in welding pushes inclination, and after weld failure, copper bar 7 has a certain amount of resilience,
But it is due to that extent of rebound is relatively low so that the spacing between copper bar 7 and fixture block main body 62 almost has no change.
Preferably, the first cover plate may be disposed at the side of fixture block main body 62, and copper bar 7 can be easy to be arranged on fixture block main body 62
On.
Preferably, fixture block main body 62 is vertically installed in the top surface in electrode leads to client portion, and the first cover plate hangs down with fixture block main body 62
Straight to set, copper bar 7 is welded with terminal cover 61, fixture block main body 62 in each fixture block 6.
In the present embodiment, fixture block main body 62 is vertically installed in the top surface in electrode leads to client portion, is easy to the die sinking of fixture block 6 to give birth to
Production, while can minimize the usage amount of material, has saved production cost, the first cover plate is vertical with fixture block main body 62 in addition sets
Put, may be such that the contact surface between the cover plate of copper bar 7 and first is maximum, solder is uniform, and welding quality is high, also allows for the peace of copper bar 7
Dress.Due between fixture block 6, copper bar 7 spacing it is small and both volume it is also smaller, by copper bar 7 and each card typically in welding
Terminal cover 61, the welding three of fixture block main body 62 weld together in block 6, increase the welding stability between copper bar 7 and fixture block 6
By force.
Preferably, reinforcement is provided between terminal cover 61 and fixture block main body 62, the cross section of fixture block main body 62 is rectangle, card
The thickness of block main body 62 is 0.2-1cm.
In the present embodiment, because electric capacity is in process of production, it is necessary to repeatedly carry and process, copper bar in above process
7 easily produce moment of torsion to terminal cover 61, terminal cover 61 is deformed or even is fractureed with fixture block main body 62, have a strong impact on exit
The quality of son.By being provided with reinforcement between terminal cover 61 and fixture block main body 62, it can effectively increase terminal cover 61 and fixture block
Connectivity robustness between main body 62, it is to avoid the appearance of above-mentioned situation, increases the stability of leading-out terminal indirectly.In this implementation
In example, fixture block main body 62 is rectangular conductive plate, and cross section is rectangle, not only designs simple, while conductive effect is relatively preferable.Card
The thickness of block main body 62 is 0.2-1cm so that in the case where meeting the requirement of electric current output, can have suitable surface area, be beneficial to
Radiating, while the bonding strength between copper bar 7 and fixture block 6 can be ensured.
Preferably, at least include being interval with raised line on the side of fixture block main body 62 on terminal cover 61.
In the present embodiment, at least include being interval with raised line on the side of fixture block main body 62 on terminal cover 61, increase
The difficulty of the fixture block 6 of the disengaging of copper bar 7 is added, while also increasing contact of the solder (such as scolding tin) between terminal cover 61, copper bar 7
Area, adds welding quality.
Preferably, terminal cover 61 includes protruding from the second cover plate of fixture block main body 62, the second cover plate and fixture block main body 62 it
Between angle be 10-80 degree.
In the present embodiment, terminal cover 61 includes the second cover plate for protruding from fixture block main body 62, the second cover plate and fixture block master
Angle between body 62 is acute angle, and the second cover plate can be flexure strip so that copper bar 7 be arranged on fixture block main body 62 on after due to second
The presence of cover plate make it that copper bar 7 is difficult to depart from fixture block main body 62 along fixture block main body 62, adds the company between copper bar 7 and fixture block 6
Connect stability.Second cover plate is preferably rectangular thin plate.Preferably, acute angle be 10-80 degree between, more preferably 45 degree.
Preferably, including 2 fixture blocks 6 being arranged side by side.
In the present embodiment, include two fixture blocks 6 in each electrode leads to client portion, each copper bar 7 provided with two or
Rectangular through-hole 11 above, for grafting above-mentioned two fixture block 6.The arragement direction of terminal cover 61 in two fixture blocks 6 is preferably
Same direction.By the way that two fixture blocks 6 are arranged side by side, the quantity of copper bar 7 and the pad in electrode leads to client portion is not only increased, is entered
And increase both bonding strengths, while forming 4 limitations to the motion of copper bar 7 using two fixture blocks 6, significantly increase copper
Bar 7 and electrode leads to client portion connective stability, further increase the bonding strength and stability in electrode leads to client portion.
" on ", " under " as described herein, " top ", " bottom ", etc. instruction orientation or position relationship be based on corresponding accompanying drawing
Shown orientation or position relationship, are for only for ease of description the utility model and simplify description, rather than indicate or imply institute
The device or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this reality
With new limitation.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that utility model scope involved in the application, however it is not limited to the particular combination of above-mentioned technical characteristic
Technical scheme, while should also cover in the case where not departing from utility model design, by above-mentioned technical characteristic or its be equal
Feature be combined formed by other technical schemes.Such as features described above has with (but not limited to) disclosed herein
The technical characteristic for having similar functions carries out technical scheme formed by replacement mutually.
Claims (10)
1. a kind of thin film capacitor with self-protection structure, including core bag, it is characterised in that the core bag includes being arranged at
The self-protection structure is provided with through hole inside the core bag, the through hole, the self-protection structure includes the first temperature
Control switch, first temperature detect switch (TDS) is open type, the positive pole and negative electricity of first temperature detect switch (TDS) respectively with the core bag
Connection.
2. the thin film capacitor according to claim 1 with self-protection structure, it is characterised in that also draw including positive pole
Go out terminal and negative pole leading-out terminal, the second temperature detect switch (TDS) is electrically connected between the core bag and the positive pole leading-out terminal, it is described
Second temperature detect switch (TDS) is closed type；Or the second temperature detect switch (TDS) is electrically connected between the core bag and the negative pole leading-out terminal,
Second temperature detect switch (TDS) is closed type.
3. the thin film capacitor according to claim 2 with self-protection structure, it is characterised in that first temperature control
The set temperature value of switch is 85 DEG C or 105 DEG C, and the set temperature value of second temperature detect switch (TDS) is 85 DEG C or 105 DEG C.
4. the thin film capacitor according to claim 1 with self-protection structure, it is characterised in that including 1-4 institute
State core bag, and core bag interval setting from top to bottom, the self-protection structure is all provided with the core bag.
5. the thin film capacitor with self-protection structure according to claim 1-4 any one, it is characterised in that institute
State and be welded with the fixture block that positive pole leading-out terminal all upwardly extends more than 1 with the top of negative pole leading-out terminal, the fixture block
Copper bar, the fixture block includes the terminal cover away from electrode leads to client portion, and positioned at electrode leads to client portion and the terminal cover it
Between fixture block main body, the copper bar is sheathed on the outer surface of each fixture block main body and at least welded with each terminal cover
Connect, the terminal cover is used to limit the copper bar disengaging fixture block main body.
6. the thin film capacitor according to claim 5 with self-protection structure, it is characterised in that the terminal cover bag
The first cover plate for protruding from the fixture block main body is included, first cover plate is more than and described first in the length that vertical direction is projected
Cover plate is located at the length in the gap between the fixture block main body of same vertical direction and the copper bar.
7. the thin film capacitor according to claim 6 with self-protection structure, it is characterised in that the fixture block main body
The top surface in the electrode leads to client portion is vertically installed in, first cover plate is set with the fixture block body normal, the copper bar
Welded with terminal cover described in each fixture block, fixture block main body.
8. the thin film capacitor according to claim 6 with self-protection structure, it is characterised in that the terminal cover with
Reinforcement is provided between the fixture block main body, the cross section of the fixture block main body is rectangle, and the thickness of the fixture block main body is
0.2-1cm。
9. the thin film capacitor according to claim 5 with self-protection structure, it is characterised in that the terminal cover bag
The second cover plate for protruding from the fixture block main body is included, the angle between second cover plate and the fixture block main body is 10-80 degree.
10. the thin film capacitor according to claim 5 with self-protection structure, it is characterised in that including setting side by side
At least include being interval with raised line on the side of the fixture block main body on 2 fixture blocks put, the terminal cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621034914.0U CN206331921U (en) | 2016-08-31 | 2016-08-31 | Thin film capacitor with self-protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621034914.0U CN206331921U (en) | 2016-08-31 | 2016-08-31 | Thin film capacitor with self-protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206331921U true CN206331921U (en) | 2017-07-14 |
Family
ID=59287528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621034914.0U Active CN206331921U (en) | 2016-08-31 | 2016-08-31 | Thin film capacitor with self-protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206331921U (en) |
-
2016
- 2016-08-31 CN CN201621034914.0U patent/CN206331921U/en active Active
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