CN205789357U - Overcurrent protection assembly - Google Patents
Overcurrent protection assembly Download PDFInfo
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- CN205789357U CN205789357U CN201620561956.3U CN201620561956U CN205789357U CN 205789357 U CN205789357 U CN 205789357U CN 201620561956 U CN201620561956 U CN 201620561956U CN 205789357 U CN205789357 U CN 205789357U
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- ptc
- assembly
- battery lead
- lead plate
- overcurrent protection
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Abstract
This utility model discloses a kind of overcurrent protection assembly, and it includes the first electrode, comprises the first elongated end and the first flat board end, and the first flat board end comprises and is branched into two the first parallel battery lead plates and the second battery lead plate from the first elongated end；Second electrode, comprises the second elongated end and the second flat board end, and the second flat board end comprises the 3rd battery lead plate；At least two PTC assemblies, including a PTC assembly and the 2nd PTC assembly, a PTC assembly is arranged between the first battery lead plate and the 3rd battery lead plate, and the 2nd PTC assembly is arranged between the 3rd battery lead plate and the second battery lead plate；First elongated end, the second elongated end are positioned at the same side of overcurrent protection assembly, a PTC assembly and the 2nd PTC modules in parallel electric connection.This utility model considerably increases application in the case of its volume is not significantly increased, little and beneficially electronic product the miniaturized application of overall resistance.
Description
[technical field]
This utility model belongs to overcurrent protection technical field, particularly relates to a kind of overcurrent protection assembly.
[background technology]
Along with the development of science and technology, the variation day by day of electric power/electronic product, complication, the circuit protection group applied
The own non-simple glass fuse (electric fuse) in the past of part, but oneself is through developing into a miscellaneous new electronic of door
Assembly field.Along with the update of electronic product, the requirement to reliability and safety improves day by day, and especially people are to various
Development and the application of circuit protecting assembly will focus more on.
The resistance value on temperature of PTC assembly (positive temperature coefficient, Positive Temperature Coefficient) becomes
The reaction changed is the sharpest.When PTC assembly is in normal behaviour in service, its resistance can maintain extremely low value to make circuit be able to normally
Running.But when there is overcurrent or cross the phenomenon of high temperature and make temperature rise to a critical temperature, its resistance value can moment
Spring is to a high resistance state (such as 102More than Ω) and the electric current of excess is reversely offset, to reach to protect battery or circuit
The purpose of assembly.Owing to PTC assembly can protect electronic product effectively, therefore this PTC assembly has been shown in and has been integrated in various circuit group
In part, to prevent the infringement of overcurrent.
Figure 1A in Figure of description shows the axonometric chart of an overcurrent protection assembly of the prior art (10), and it leads to
Cross and two dispatch from foreign news agency pole pieces (11) are respectively welded at the upper and lower surface of PTC assembly (12) and form.Dispatch from foreign news agency pole piece (11) is as connecting
Interface to the electric device to be protected.Figure 1B is the side view of this overcurrent protection assembly (10).This PTC assembly (12) is by one
Ptc layer (122) is stacked between two electrode foils (121) composition, and this two dispatch from foreign news agency pole piece (11) connects this two electrode foil respectively
(121)。
It is said that in general, overcurrent protection assembly is all expected can reduce its initial resistivity value (initial as far as possible
Resistance), in order to be applicable to low-resistance occasion.But, for seeking reduction resistance, it is often necessary to increase wherein PTC assembly
Area, and then increase the size of overcurrent protection assembly, and the unfavorable electronic installation being applied to miniaturization.
Therefore, it is necessary to provide a kind of new overcurrent protection assembly to solve the problems referred to above.
[utility model content]
Main purpose of the present utility model is to provide a kind of overcurrent protection assembly, and its volume situation be not significantly increased
Under considerably increase application, little and beneficially electronic product the miniaturized application of overall resistance.
This utility model is achieved through the following technical solutions above-mentioned purpose: a kind of overcurrent protection assembly, comprising: first
Electrode, comprises the first elongated end and the first flat board end, and described first flat board end comprises and is branched into two from described first elongated end
The first parallel battery lead plate and the second battery lead plate；
Second electrode, comprises the second elongated end and the second flat board end, and described second flat board end comprises the 3rd battery lead plate；
At least two PTC assemblies, including a PTC assembly and the 2nd PTC assembly, a described PTC assembly is arranged on described
Between first battery lead plate and described 3rd battery lead plate, described 2nd PTC assembly is arranged on described 3rd battery lead plate and described second
Between battery lead plate；
Described first elongated end, described second elongated end are positioned at the same side of described overcurrent protection assembly, and described first
PTC assembly and described 2nd PTC modules in parallel electric connection.
Further, a described PTC assembly is identical with described 2nd PTC modular construction, it include the first conductive foil,
Two conductive foils and be arranged at the ptc layer between described first conductive foil and described second conductive foil.
Further, described first battery lead plate lower surface connects with described first conductive foil in a described PTC assembly.
Further, described second battery lead plate upper surface connects with described first conductive foil in described 2nd PTC assembly.
Further, described 3rd battery lead plate one surface connects with described second conductive foil in a described PTC assembly,
Another surface connects with described second conductive foil in described 2nd PTC assembly.
Further, in described first elongated end and described second elongated end are generally aligned in the same plane.
Further, described first battery lead plate, described second battery lead plate and described first elongated end are positioned at Different Plane.
Further, described second elongated end bending is connected with described second flat board end, described second elongated end and described
Second flat board end is positioned at Different Plane.
Compared with prior art, the having the beneficial effects that of a kind of overcurrent protection assembly of this utility model: the most significantly increasing
Application is considerably increased, beneficially the miniaturized application of electronic product in the case of adding its volume；By setting at the first electrode
Put the first elongated end, the second elongated end is set in the second electrode simultaneously, form a pair and connect terminal, in order to form card format
It is assembled in electric device and carries out overcurrent protection；By a PTC assembly and the 2nd PTC assembly are designed to parallel form,
The overall resistance of overcurrent protection assembly can be greatly reduced, thus reduce loss, and expand the scope of application.
[accompanying drawing explanation]
Figure 1A is one of structural representation of overcurrent protection assembly of the prior art；
Figure 1B is the two of the structural representation of overcurrent protection assembly of the prior art；
Fig. 2 is the structural representation of this utility model embodiment；
Fig. 3 is the detonation configuration schematic diagram of this utility model embodiment；
Fig. 4 is the structural representation of a PTC assembly in this utility model embodiment；
In figure, numeral represents:
10,20 overcurrent protection assembly
11 dispatch from foreign news agency pole pieces
12 PTC assemblies
121 electrode foils
122 ptc layers
21 the oneth PTC assemblies
22 the 2nd PTC assemblies
23 first electrodes
24 second electrodes
211 first conductive foils
212 second conductive foils
213 ptc layers
231 first elongated ends
232 first flat board ends
233 first battery lead plates
234 second battery lead plates
241 second elongated ends
242 the 3rd battery lead plates
[detailed description of the invention]
Embodiment:
Refer to Fig. 2, Fig. 3, Fig. 4, overcurrent protection assembly 20 comprise a PTC assembly 21, the 2nd PTC assembly 22,
One electrode 23 and the second electrode 24.Oneth PTC assembly 21 comprises first conductive foil the 211, second conductive foil 212 and folded is located at first
Ptc layer 213 between conductive foil 211 and the second conductive foil 212.2nd PTC assembly 22 is identical with a PTC assembly 21
Stepped construction, but be situation about spinning upside down in this embodiment, lamination order the most from top to bottom be the second conductive foil 212,
Ptc layer 213 and the first conductive foil 211.First electrode 23 is upper and lower bifurcation structure, one bifurcated and a PTC assembly 21
In the first conductive foil 211 connect and the first conductive foil 211 in another bifurcated and the 2nd PTC assembly 22 connects.Second electrode
24 one end connect with the second conductive foil 212 in a PTC assembly 21 and the second conduction in the other end and the 2nd PTC assembly 22
Paper tinsel 212 connects.Oneth PTC assembly the 21, the 2nd PTC assembly the 22, first electrode 23 and the second electrode 24 form stack architecture, and first
The other end of electrode 23 and the other end of the second electrode 24 are outside same one end of this stack architecture extends to, and a PTC assembly
21 become parallel connection with the 2nd PTC assembly 22.
Concrete, the first electrode 23 comprises the first elongated end 231 and the first flat board end 232, and the first flat board end 232 is from first
Elongated end 231 is branched into two the first parallel battery lead plate 233 and the second battery lead plates 234.First elongated end 231 by bending with
First battery lead plate 233 links into an integrated entity；One end of second battery lead plate 234 has kink, and is welded on the first elongated end 231
On, thus form bifurcation structure with the first battery lead plate 233.In the present embodiment, the first battery lead plate 233 and the first elongated end 231 can
Being made up through bending to cut of same sheet material, the second battery lead plate 234 is then made by another sheet material.Second electrode 24 comprises second
Elongated end 241 and the second flat board end.Second flat board end i.e. comprises the 3rd battery lead plate 242, and the second elongated end 241 is by bending and the
Three battery lead plates 242 link into an integrated entity.
As it is shown on figure 3, the first battery lead plate 233, a PTC assembly 21, the 3rd battery lead plate 242, the 2nd PTC assembly 22 and
Two battery lead plates 234 be shaped like rectangle structure.3rd battery lead plate 242 is folded is located at PTC assembly 21 and a 2nd PTC assembly
Between 22, and PTC assembly the 21, the 3rd battery lead plate 242 and the 2nd PTC assembly 22 insert the first battery lead plate 233 and the second electricity
Between pole plate 234, and consist of the structure of similar cuboid.First battery lead plate the 233, the oneth PTC assembly the 21, the 3rd battery lead plate
242, the 2nd PTC assembly 22 and the second battery lead plate 234 sequentially stacking, forms stack architecture, and PTC assembly the 21, the 2nd PTC
Assembly 22 forms parallel connection.
The stack architecture of the present embodiment forms the structure of similar cuboid, and the first elongated end 231 and the second elongated end 241 are certainly
Outside same one end of this stack architecture extends to.Particularly first elongated end 231 and the second elongated end 241 about become parallel and towards identical
Direction extends.First elongated end 231 and the second elongated end 241 position respectively are outside the limit, two opposite sides of stack architecture extends to again.
First elongated end 231 and the second elongated end 241 are at same plane.Second elongated end 241 bending is connected to the second flat board end, because of
This second elongated end 241 and the second flat board end position are in Different Plane.First flat board end 232 has forked first battery lead plate 233
And second battery lead plate 234, therefore the first elongated end 241 and the first battery lead plate 233 and the second battery lead plate 234 are positioned at Different Plane.
Above-described embodiment comprises the overcurrent protection assembly 20 of two PTC assemblies, wherein the first battery lead plate the 233, the oneth PTC
Assembly the 21, the 3rd battery lead plate the 242, the 2nd PTC assembly 22 and the second battery lead plate 234 sequentially stacking and neighbor become physical contact.
The bifurcated at one end of the first electrode 23 of the overcurrent protection assembly 20 that the present embodiment discloses become the first battery lead plate 233 and
Second battery lead plate 234, and the first battery lead plate 233 and the second battery lead plate 234 physical contact the oneth PTC assembly 21 and second respectively
The first conductive foil 211 in PTC assembly 22.Physical contact the oneth PTC assembly respectively of the 3rd battery lead plate 242 in second electrode 24
21 and the 2nd the second conductive foils 212 in PTC assembly 22.By the first electrode 23 and the second electrode 24 by a PTC assembly 21
Form parallel connection with the 2nd PTC assembly 22, and be minimized the resistance value of this overcurrent protection assembly 20 entirety.
The rectangular structure of the stacking in the present embodiment can additionally coated insulation outer housing, such as plastic jacket, and expose first
Elongated end 231 and the second elongated end 241.First elongated end 231 and the second elongated end 241 can design and connect terminal accordingly, with
Card format is utilized to be assembled in electric device to carry out overcurrent protection.
The present embodiment overcurrent protection assembly 20 can PTC assembly in parallel more, and obtain lower resistance value, and be this
Embodiment is contained.But just simplify structure and the consideration of processing procedure, typically with the overcurrent protection group of also di-to four PTC assemblies
Part is most widely used.
Having the beneficial effects that of the present embodiment overcurrent protection assembly 20: increase in the case of its volume is not significantly increased
Add application, beneficially the miniaturized application of electronic product；By arranging the first elongated end at the first electrode, simultaneously the
Two electrodes arrange the second elongated end, forms a pair and connect terminal, in order to formation card format is assembled in electric device and carries out
Overcurrent protection；By a PTC assembly and the 2nd PTC assembly are designed to parallel form, overcurrent protection can be greatly reduced
The overall resistance of assembly, thus reduce loss, and expand the scope of application.
Above-described is only embodiments more of the present utility model.For one skilled in the relevant art,
On the premise of creating design without departing from this utility model, it is also possible to making some deformation and improvement, these all belong in this practicality
Novel protection domain.
Claims (8)
1. an overcurrent protection assembly, it is characterised in that: it includes
First electrode, comprises the first elongated end and the first flat board end, and described first flat board end comprises and divides from described first elongated end
Pitch into two the first parallel battery lead plates and the second battery lead plate；
Second electrode, comprises the second elongated end and the second flat board end, and described second flat board end comprises the 3rd battery lead plate；
At least two PTC assemblies, including a PTC assembly and the 2nd PTC assembly, a described PTC assembly is arranged on described first
Between battery lead plate and described 3rd battery lead plate, described 2nd PTC assembly is arranged on described 3rd battery lead plate and described second electrode
Between plate；
Described first elongated end, described second elongated end are positioned at the same side of described overcurrent protection assembly, a described PTC group
Part and described 2nd PTC modules in parallel electric connection.
2. overcurrent protection assembly as claimed in claim 1, it is characterised in that: a described PTC assembly and described 2nd PTC
Modular construction is identical, and it includes the first conductive foil, the second conductive foil and is arranged at described first conductive foil and leads with described second
Ptc layer between electricity paper tinsel.
3. overcurrent protection assembly as claimed in claim 2, it is characterised in that: described first battery lead plate lower surface and described the
Described first conductive foil connection in one PTC assembly.
4. overcurrent protection assembly as claimed in claim 2, it is characterised in that: described second battery lead plate upper surface and described the
Described first conductive foil connection in two PTC assemblies.
5. overcurrent protection assembly as claimed in claim 2, it is characterised in that: described 3rd battery lead plate one surface and described the
Described second conductive foil connection in one PTC assembly, another surface is with described second conductive foil in described 2nd PTC assembly even
Logical.
6. overcurrent protection assembly as claimed in claim 1, it is characterised in that: described first elongated end and described second extends
In end is generally aligned in the same plane.
7. overcurrent protection assembly as claimed in claim 1, it is characterised in that: described first battery lead plate, described second electrode
Plate and described first elongated end are positioned at Different Plane.
8. overcurrent protection assembly as claimed in claim 1, it is characterised in that: described second elongated end bending is with described second
Flat board end connects, and described second elongated end and described second flat board end are positioned at Different Plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620561956.3U CN205789357U (en) | 2016-06-13 | 2016-06-13 | Overcurrent protection assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620561956.3U CN205789357U (en) | 2016-06-13 | 2016-06-13 | Overcurrent protection assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205789357U true CN205789357U (en) | 2016-12-07 |
Family
ID=58134294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620561956.3U Active CN205789357U (en) | 2016-06-13 | 2016-06-13 | Overcurrent protection assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205789357U (en) |
-
2016
- 2016-06-13 CN CN201620561956.3U patent/CN205789357U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |