CN201112021Y - Multi-layer overcurrent protection component structure - Google Patents
Multi-layer overcurrent protection component structure Download PDFInfo
- Publication number
- CN201112021Y CN201112021Y CNU2007201786657U CN200720178665U CN201112021Y CN 201112021 Y CN201112021 Y CN 201112021Y CN U2007201786657 U CNU2007201786657 U CN U2007201786657U CN 200720178665 U CN200720178665 U CN 200720178665U CN 201112021 Y CN201112021 Y CN 201112021Y
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- China
- Prior art keywords
- conductive layer
- over current
- termination electrode
- current protection
- layers
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- Expired - Fee Related
Links
- 230000004888 barrier function Effects 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The utility model discloses a multi-layer over current protection component structure which comprises a plurality of conducting layers, a plurality of over current protection layers, a plurality of insulating layers and a side conducting unit. The over current protection layers are respectively adhered between each pair of conducting layers, the insulating layers are respectively adhered to the surface of the conducting layers and every conducting layer is between the insulating layer and the over current protection layer. The side conducting unit comprises a first side conducing layer and a second side conducting layer which are insulated, and respectively positioned at the two corresponding sides of the insulating layers, the conducting layers and the over current protection layers and electrically connected with the conducting layers. The inner part of each conducting layer is at least provided with an insulating part used for preventing the circulation of the current. By the design, the side conducting unit connects all over current protection layers into a parallel circuit, thereby reducing the starting resistance of the protection component and improving the withstand voltage property thereof.
Description
Technical field
The utility model relates to a kind of multilayer overcurrent protection assembly structure, particularly relates to a kind of notion of utilizing the circuit board lamination, the improvement structure that realizes reducing the initial resistance of protection assembly and improve its proof voltage.
Background technology
Existing common electronic product, all light, thin, short, the little direction towards design of electronic products develops, so that electronic product can more be tending towards miniaturization.These electronic products will guarantee that integrated circuit operation is normal, except will possessing good circuit framework, also need to prevent internal wiring generation overcurrent phenomenon and the short circuit that causes.
In order to prevent the generation of overcurrent phenomenon; the internal wiring of electronic product must have overcurrent protection assembly; overcurrent protection assembly has a kind of positive temperature coefficient (Positive temperaturecoefficient) material structure usually; this kind material structure is when normal temperature; be low resistance state; electric current can circulate smoothly; but when the electric current of this material structure of flowing through is excessive; cause the temperature of this material structure to raise; when temperature is increased to critical temperature when above; the resistance of this material structure can rise rapidly, and then cuts off electric current, reaches the purpose of overcurrent protection.
But known overcurrent protection assembly in use, in order to promote its spike resistance value, all must reduce its conductive filling material, though promoted the spike resistance value, also promotes the initial resistance value of protection assembly relatively, and makes its electrical conductivity reduce.
Summary of the invention
The purpose of this utility model is to provide a kind of multilayer overcurrent protection assembly structure, and it has the initial resistance that reduces the protection assembly, the effect that promotes conductivity and improve proof voltage.
To achieve these goals, the invention provides a kind of multilayer overcurrent protection assembly structure, comprising: several conductive layers; Several over current protection sheaths, these over current protection sheaths are attached at each respectively between the conductive layer; Several insulating barriers, these insulating barriers are attached at the surface of these conductive layers respectively, and each conductive layer is all between this insulating barrier and this over current protection sheath; An and side conductive unit; this side conductive unit comprises a first side conductive layer insulated from each other and a second side conductive layer; this first side conductive layer and this second side conductive layer are located at relative two sides of these insulating barriers, these conductive layers and these over current protection sheaths respectively; this first side conductive layer and this second side conductive layer and these conductive layers electrically connect, and the inside of each conductive layer all has at least one insulation division.
The utlity model has following useful effect: this side conductive unit is in addition in parallel with each over current protection sheath, makes the initial resistance of protection assembly reduce and conductivity improves, and then improves its proof voltage.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.
Description of drawings
Fig. 1 is the stereogram of the utility model multilayer overcurrent protection assembly structure;
Fig. 2 is the cutaway view of the utility model multilayer overcurrent protection assembly structure;
Fig. 3 is the current direction figure of the utility model multilayer overcurrent protection assembly inside configuration.
Wherein, Reference numeral:
Over current protection sheath 2
Side runs through groove unit 4
Groove 41 is run through in the first side
Groove 42 is run through in the second side
Side conductive unit 5
First side conductive layer 51
Second side conductive layer 52
Three-end electrode 63
The 4th termination electrode 64
Embodiment
Extremely shown in Figure 2 as Fig. 1; the utility model provides a kind of multilayer overcurrent protection assembly structure; comprise several conductive layers 1; several over current protection sheaths 2; several insulating barriers 3; one side runs through groove unit 4; an one side conductive unit 5 and a termination electrode unit 6; these over current protection sheaths 2 are pasted on each respectively between the conductive layer 1; this over current protection sheath 2 is a high molecular positive temperature coefficient material layer; resistance elements; the capacitance material layer or the electrical sensative material bed of material; over current protection sheath 2 is when normal temperature; be low resistance state; electric current can circulate swimmingly; but when the electric current of this over current protection sheath 2 of flowing through is excessive; cause the temperature of over current protection sheath 2 to raise; when temperature is increased to critical temperature when above; the resistance of over current protection sheath 2 can rise rapidly, and then cuts off electric current, reaches the purpose of overcurrent protection.These insulating barriers 3 are pasted on the surface of these conductive layers 1 respectively; and each conductive layer 1 is all between this insulating barrier 3 and this over current protection sheath 2; equal etching has circuit on each conductive layer 1, is provided with at least one insulation division 11 in the inside of each conductive layer 1, so as to blocking the circulation of electric current.
This side runs through groove unit 4 and comprises that groove 41 is run through in a twice first side separated from one another and groove 42 is run through in a second side; the side that groove 41 runs through these insulating barriers 3, these conductive layers 1 and these over current protection sheaths 2 is run through in this first side, and another opposite side that groove 42 runs through these insulating barriers 3, these conductive layers 1 and these over current protection sheaths 2 is run through in this second side.
This side conductive unit 5 comprises two a layers of first side conductive layer 51 insulated from each other and a second side conductive layer 52, this first side conductive layer 51 is plated on the inner surface that groove 41 is run through in this first side, reach this second side conductive layer 52 and be plated on the inner surface that groove 42 is run through in this second side, this first side conductive layer 51 and this second side conductive layer 52 electrically connect with these conductive layers 1.
This termination electrode unit 6 comprises one first termination electrode 61, one second termination electrode 62, one three-end electrode 63 and one the 4th termination electrode 64, this termination electrode unit 6 is a Copper Foil, this first termination electrode 61 and this second termination electrode 62 are electrically connected at the two ends up and down of this first side conductive layer 51 respectively, this first termination electrode 61 and this second termination electrode 62 fit in the upper surface of insulating barrier 3 of these the superiors and the lower surface of this undermost insulating barrier 3 respectively, this three-end electrode 63 and the 4th termination electrode 64 are electrically connected at the two ends up and down of this second side conductive layer 52 respectively, and this three-end electrode 63 and the 4th termination electrode 64 fit in the upper surface of insulating barrier 3 of these the superiors and the lower surface of this undermost insulating barrier 3 respectively.
As shown in Figure 3; electric current can be flowed into by first termination electrode 61 or second termination electrode 62; electric current is shunted an end that is connected in first side conductive layer 51 in conductive layer 1 in regular turn along first side conductive layer 51 and is entered; when shunt current runs into insulation division 11 in the conductive layer 1; can turn to and flow into overcurrent protection layer 2; after shunt current flows through over current protection sheath 2; an end that is connected in second side conductive layer 52 toward conductive layer 1 flows out; shunt current flows along second side conductive layer 52; and then compile toward three- end electrode 63 or 64 outflows of the 4th termination electrode; through the flow direction of electric current as can be known, first side conductive layer 51 and second side conductive layer 52 connect into a circuit in parallel with these over current protection sheaths 2.
The utility model multilayer overcurrent protection assembly structure, this side conductive unit 5 connects into a circuit in parallel with each over current protection sheath 2, makes that the initial resistance of protection assembly reduces, conductivity improves, and then improves the proof voltage of protection assembly.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (5)
1, a kind of multilayer overcurrent protection assembly structure is characterized in that, comprising:
Several conductive layers;
Several over current protection sheaths, these over current protection sheaths are attached at each respectively between the conductive layer;
Several insulating barriers, these insulating barriers are attached at the surface of these conductive layers respectively, and each conductive layer is all between this insulating barrier and this over current protection sheath; And
One side conductive unit; this side conductive unit comprises a first side conductive layer insulated from each other and a second side conductive layer; this first side conductive layer and this second side conductive layer are located at relative two sides of these insulating barriers, these conductive layers and these over current protection sheaths respectively; this first side conductive layer and this second side conductive layer and these conductive layers electrically connect, and the inside of each conductive layer all has at least one insulation division.
2; multilayer overcurrent protection assembly structure according to claim 1; it is characterized in that; also further comprise: a termination electrode unit; this termination electrode unit comprises one first termination electrode; one second termination electrode; one three-end electrode and one the 4th termination electrode; this first termination electrode and this second termination electrode are electrically connected at the opposite end of this first side conductive layer respectively; this first termination electrode and this second termination electrode fit in the upper surface of insulating barrier of these the superiors and the lower surface of this undermost insulating barrier respectively; this three-end electrode and the 4th termination electrode are electrically connected at the opposite end of this second side conductive layer respectively, and this three-end electrode and the 4th termination electrode fit in the upper surface of insulating barrier of these the superiors and the lower surface of this undermost insulating barrier respectively.
3, multilayer overcurrent protection assembly structure according to claim 1; it is characterized in that; also further comprise: a side runs through the groove unit; this side runs through the groove unit and comprises that groove is run through in a twice first side separated from one another and groove is run through in a second side; the side that groove runs through these insulating barriers, these conductive layers and these over current protection sheaths is run through in this first side, and another opposite side that groove runs through these insulating barriers, these conductive layers and these over current protection sheaths is run through in this second side.
4, multilayer overcurrent protection assembly structure according to claim 3 is characterized in that, this first side conductive layer is plated on the inner surface that groove is run through in this first side, and this second side conductive layer is plated on the inner surface that groove is run through in this second side.
5, multilayer overcurrent protection assembly structure according to claim 1 is characterized in that, this over current protection sheath is a high molecular positive temperature coefficient material layer, resistance elements, capacitance material layer or the electrical sensative material bed of material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201786657U CN201112021Y (en) | 2007-09-14 | 2007-09-14 | Multi-layer overcurrent protection component structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201786657U CN201112021Y (en) | 2007-09-14 | 2007-09-14 | Multi-layer overcurrent protection component structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201112021Y true CN201112021Y (en) | 2008-09-10 |
Family
ID=39963766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201786657U Expired - Fee Related CN201112021Y (en) | 2007-09-14 | 2007-09-14 | Multi-layer overcurrent protection component structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201112021Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779595A (en) * | 2011-05-12 | 2012-11-14 | 聚鼎科技股份有限公司 | Overcurrent and overtemperature protection element |
| CN107665758A (en) * | 2016-07-29 | 2018-02-06 | 聚鼎科技股份有限公司 | Surface adhesive overcurrent protection element |
-
2007
- 2007-09-14 CN CNU2007201786657U patent/CN201112021Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779595A (en) * | 2011-05-12 | 2012-11-14 | 聚鼎科技股份有限公司 | Overcurrent and overtemperature protection element |
| CN102779595B (en) * | 2011-05-12 | 2015-05-20 | 聚鼎科技股份有限公司 | Overcurrent and overtemperature protection element |
| CN107665758A (en) * | 2016-07-29 | 2018-02-06 | 聚鼎科技股份有限公司 | Surface adhesive overcurrent protection element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20120914 |