CN103918040B - Ptc device - Google Patents
Ptc device Download PDFInfo
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- CN103918040B CN103918040B CN201280055237.9A CN201280055237A CN103918040B CN 103918040 B CN103918040 B CN 103918040B CN 201280055237 A CN201280055237 A CN 201280055237A CN 103918040 B CN103918040 B CN 103918040B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
- H01C1/1406—Terminals or electrodes formed on resistive elements having positive temperature coefficient
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Abstract
The present invention, which provides, a kind of to be reduced to become the PTC device of undesirable possibility with being electrically connected for substrate connection and the solder connection portion that is formed as far as possible.PTC device is configured to PTC element, and the PTC element has：PTC units are consisted of with stratiform PTC elements and the 1st layered electrode being respectively configured on the surface of its both sides and the 2nd layered electrode；And insulating layer, it is located at the outside of each layered electrode, in PTC device, PTC element has the 1st end and the 2nd end, in the 1st end, there is the 1st quadrant cylindrical recess in its each angle part, and, in the 2nd end, there is the 2nd quadrant cylindrical recess in its angle part, each 1st quadrant cylindrical recess has the 1st castellated electrode being electrically connected with the 1st layered electrode, moreover, each 2nd quadrant cylindrical recess has the 2nd castellated electrode being connected with the 2nd layered electrode.
Description
Technical field
The present invention relates to a kind of PTC devices, are specifically related to a kind of PTC device of surface installing type.
Background technology
For example, PTC device is used for as circuit protecting element in various electric devices, to form the guarantor of electric device
Protection circuit.Such PTC device is configured in the protection circuit board with protection circuit.In this case, it is contemplated that configuration
Convenience, usually using the PTC device of surface installing type.
The PTC device of surface installing type is loaded is located at the label (tab) set in protection circuit board for its electrode
Or on pad, it is electrically connected, is thus configured in the protection circuit formed in protection circuit board by soldering.
Such PTC device is schematically shown by stereogram in Fig. 1.The PTC device 10 of diagram is configured to have
The PTC element 11 formed to it.PTC element 11 is configured to what is had PTC elements and be respectively configured on the surface of its both sides
Layered electrode and the insulating layer positioned at the outside of each layered electrode.In Fig. 1, and these inscapes not shown, but conduct
PTC element 11 and integrally show.
PTC element 11 has semi-circular cylindrical recess portion 12 and 14 in the end of both sides in side end face, in semi-circular cylindrical
The surface of recess portion has side metal layer part (such as conductive metal coating layer) 16 and 18.On the other hand, PTC element
11 on it the respective both ends of surface and lower surface also there is end metal layer segment (such as conductive metal plating
Layer) 20,22 and 24,26.Side metal layer part 16 and 18 is held on it and lower end and end metal layer segment 20,22
And 24,26 be connected, these constitute so-called castellated (castellation) electrode (20+16+22 and 24+18+
26)。
In addition, in illustrated mode, castellated electrode all has gold in the upper surface and lower surface of PTC element 11
Belong to layer segment, but general castellated electrode can also have at the both ends of a side of the upper surface and lower surface of PTC element
There is end metal layer segment (that is, can not also have end metal layer segment in the end on the surface of the opposing party).Therefore, castellated
Electrode has end metal layer segment at the both ends on the surface of at least one party of the upper surface and lower surface of PTC device.
Although not illustrated, in such PTC device, a castellated electrode and the PTC in PTC device
The electrode electrical connection of element, another castellated electrode are electrically connected with another electrode of PTC element.Such PTC dresses
It puts, such as has been disclosed in following patent documents 1.
Such PTC device is implemented as follows to the installation of substrate：Pass through on the pad set on substrate
It prints to apply cream solder, configuration PTC device causes the terminal metal layer of the castellated electrode positioned at the lower surface of PTC device
Partly (such as 22) put the substrate for being configured so that PTC device across coated cream solder part and on pad
Enter to make into reflow soldering melt solder, curing.It is schematically shown in fig. 2 by sectional view according in this way by being brazed general
PTC device be installed on substrate after appearance.
In fig. 2, to being mounted on the PTC device 10 of Fig. 1 on substrate 28 by using the vertical plane for including line X-X
End view drawing after being cut off represents.In addition, in fig. 2, the end on the right side of the PTC device of Fig. 1 is illustrated only, for city
Castellatus electrode, in order to be readily appreciated that and exaggerate its thickness to be illustrated.Pad 30 and castellated electrode on substrate
End metal layer segment 22 between, form solder connection portion 32 by being brazed, these be combined into one and are electrically connected.
The solder melted in reflow soldering, which also soaks, to be risen in semi-circular cylindrical recess portion, motionless as former state to carry out curing so as to solder
Part 34 is existed in as radius on the side metal layer part 16 of castellated electrode, is become with solder connection portion 32
One.
Citation
Patent document
Patent document 1：No. 6377467 specifications of U.S. Patent No.
Invention content
The subject that the invention solves
If having used the substrate as described above for being brazed PTC device, being electrically connected between PTC device and substrate is noticed
Connecing becomes bad this problem point.More specifically, it is appreciated that welded between end metal layer segment 22 and pad 30 sometimes
Expect the part stripping of connecting portion 32, as a result, the electrical connection between this becomes inadequate.Therefore, the invention solves subject
It is that reducing such electrical connection as far as possible becomes undesirable possibility.
The means to solve the problem
The above-mentioned undesirable substrate of electrical connection is studied in detail, as a result, it has been found that being split in solder connection portion 32
The part in line or solder connection portion 32 occurs at end metal layer segment 22 and/or side metal layer part 16
Stripping.
If further to it is such the phenomenon that study, by the process of expansion/contraction as follows：It is filled in PTC
In the case of putting work, temperature rise and PTC elements are expanded, then, the Wen Duxiajiang of PTC elements and shunk
It is restored to original shape.In addition, the electric device with substrate environment (such as interior of automobile) repeatedly temperature rise/
In the case that temperature is fallen, PTC elements also expand/shrink this process repeatedly.
If being as a result attributed to PTC elements to expand/shrink repeatedly, stress is generated, and due to this due to its volume change
The stress of sample, the very big generation that may will lead to crackle, stripping etc..Following judgement is obtained：Particularly as described above in PTC
In the case that the side of device has semi-circular cylindrical recess portion, stress caused by expansion/contraction has stress concentration in the part
Tendency, as a result, easily occur crackle, stripping phenomena such as.Therefore, following idea is obtained：Inhibit stress concentration in this way,
In more detail, by increasing stress it is possible that the position concentrated, the stress at such each position is concentrated on by reducing
Total amount can inhibit the generation of crackle, stripping etc., and can reduce the possibility for being electrically connected bad generation.
Based on discussed above, inhibition of the inventor for stress concentration is concentrated on studies, has as a result been obtained as follows
Idea：Not by stress it is possible that the position concentrated is set as 2 positions of the side of the both sides of PTC device, but by setting
Angle part for PTC device, that is, by being set as 4 positions, become undesirable possibility to reduce electrical connection.
Therefore, in the 1st main idea, the present invention provides a kind of PTC device,
The PTC device is characterized in that, is configured to have (stratiform) PTC element, the PTC element has：PTC is mono-
Member is consisted of with stratiform PTC elements and the 1st layered electrode being respectively configured on the surface of its both sides and the 2nd layer
Shape electrode；And insulating layer, be located at each layered electrode outside (i.e. positioned at the outside of PTC units),
PTC element has the 1st end and the 2nd end, in the 1st end, has the 1st quadrant in its each angle part
Cylindrical recess moreover, in the 2nd end, has the 2nd quadrant cylindrical recess in its angle part,
Each 1st quadrant cylindrical recess has the 1st castellated electrode being electrically connected with the 1st layered electrode, moreover, respectively
2nd quadrant cylindrical recess has the 2nd castellated electrode being connected with the 2nd layered electrode.
In 1 mode, which can be in addition to having the 1st quadrant cylindrical recess and the 2nd a quarter
Except cylindric recess portion, can also also have semi-circular cylindrical recess portion described above in the 1st end and the 2nd end.
The PTC device of above-mentioned 1st main idea in 1 preferred mode, can also be laminated with multiple compositions across insulating layer
For the PTC units with PTC elements and the layered electrode being configured on the surface of its both sides.
That is, in the 2nd main idea, the present invention provides a kind of different PTC device,
The PTC device is characterized in that, is configured to the PTC element as laminated body, the laminated body is by being configured to have
There are multiple stratiform PTC elements and the 1st layered electrode being respectively configured on the surface of the both sides of each PTC elements and the 2nd layer
It multiple PTC units of shape electrode and is configured between PTC units so that the insulating layer that separates that these PTC units are clipped in the middle
It is laminated,
PTC element has the 1st end and the 2nd end,
PTC element has the 1st quadrant cylindrical recess in the 1st end, in its each angle part, moreover, at the 2nd end
Portion has the 2nd quadrant cylindrical recess in its angle part,
Each 1st quadrant cylindrical recess has the 1st castellated being electrically connected with the 1st layered electrode of each PTC elements
Electrode, moreover, each 2nd quadrant cylindrical recess has the 2nd castellated electrode being connected with the 2nd layered electrode.
In 1 mode, the PTC device is in addition to having the 1st quadrant cylindrical recess and the 2nd a quarter cylinder
Except shape recess portion, can also also have semi-circular cylindrical described above in the 1st end of PTC element laminated body and the 2nd end
Recess portion.
Invention effect
In the PTC device of the present invention, there is a quarter cylinder in the angle part of PTC element or PTC element laminated body
Shape recess portion is configured with castellated electrode in the part, so what stress caused by expansion/contraction of PTC elements was easily concentrated
Position can at least there are 4 positions, as a result, the total amount for the stress for acting on each castellated electrode can be reduced, so energy
Enough reduce as far as possible is becoming undesirable possibility with the electrical connection in solder connection portion played a role in being electrically connected of PTC device
Property.
Description of the drawings
Fig. 1 schematically shows the stereogram of existing PTC device.
Fig. 2 schematically shows the state being mounted on existing PTC device after substrate.
Fig. 3 schematically shows the vertical view of the PTC device of the present invention.
Fig. 4 schematically shows the vertical view of the other modes of the PTC device of the present invention.
Fig. 5 schematically shows being cutd open (along line Y-Y of Fig. 4) for the PTC device of the present invention with single PTC units
Face.
Fig. 6 is to schematically show being cutd open (along line Y-Y of Fig. 4) for the PTC device of the invention with multiple PTC units
Face.
Fig. 7 schematically shows the stereogram of the PTC device of the present invention shown in Fig. 3.
Fig. 8 schematically shows the vertical view of crimp body in order to illustrate the autofrettage of the PTC device of the present invention.
Specific embodiment
It is schematically shown in figure 3 according to the face opposed with substrate when the PTC device of the present invention is installed to substrate
The vertical view that mode upward (has been equivalent to situation about being observed in Fig. 1 by the direction of arrow A) in the case of having loaded PTC device
Figure, in addition, schematically showing stereogram in the figure 7.Therefore, the lower surface 38 of the PTC device of Fig. 1 and Fig. 2 in Fig. 3 and
In Fig. 7, become upper surface 38.In illustrated mode, PTC device 10 is configured to PTC element 11, PTC element composition
To have the 1st end 42 and the 2nd end 44.
PTC element is used as the 1st quadrant cylindrical recess (with reference to Fig. 3) the 36 or the 1st quadrant cylindrical recess
(with reference to Fig. 7) the 36 and the 2nd quadrant cylindrical recess (with reference to Fig. 3) the 37 or the 2nd quadrant cylindrical recess (reference
Fig. 7) 37 entirety cut (that is, in the case where being set as no cut out portion) has rectangular shape in the vertical view of Fig. 3,
In addition, there is rectangular shape in the stereogram of Fig. 7.Round part (or the quadrant cylindrical recess) 36 of a quarter
And 37 is recessed derived from forming the PTC element 10 of PTC device 4 angle parts and having as notch a quarter cylindrical shape
Portion.
In more detail, PTC element 11 has 2 the 1st a quarter cylindrical portions 36, at the 2nd end in the 1st end 42
Portion 44 has 2 the 1st a quarter cylindrical portions 37.It, can also be in 2 the 1st or the 2nd a quarters in other modes
Between cylindrical portion 36 and/or 37, there is semi-circular cylindrical recess portion 12 as shown in Figure 1.
In addition, particularly preferably (therefore, in figure 3 quadrant cylindrical recess 36 has 1/4th shape of cylinder
Shape for quadrant).But PTC element 11, as long as its 4 angle parts are cut out, then it can also replace four/
The shape of one circle and with other kerfs.In a top view, kerf is either right-angle triangle, also may be used
To be 1/4th elliptical shape.
The PTC device 10 of diagram has on the side 40 of each 1st quadrant cylindrical recess 36 of regulation of PTC element 11
There is side metal layer part 16, (being upper end 46 in mode shown in Fig. 7) has end metal plating in an end of the side
Coating portion 22, these metal layer parts link into an integrated entity, and form the 1st castellated electrode 50.In addition, PTC device 10 is in PTC members
There is side metal layer part 17 on the side 41 of each 2nd quadrant cylindrical recess 37 of regulation of part 11, in the side
One end (being upper end 47 in mode shown in Fig. 7) has end metal layer segment 23, these metal layer parts connect into one
Body forms the 2nd castellated electrode 52.
The side metal layer of castellated electrode extends throughout the whole surface of the side of regulation recess portion, terminal metal layer portion
Divide 22 and/or 23 can be illustrated in figure 3 annular shape, it, can also be as shown in figure 4, being rectangular-shaped in other modes
(wherein, having and the round corresponding notch of a quarter).
In addition, side 40 and/or side 41 also may be used in another end (being lower end 48 in mode shown in Fig. 7)
With with end metal layer segment 20 (the end metal layer segment that nearby side in the figure 7, is shown in broken lines as example), this
3 metal layer parts are (that is, the side metal layer part 16 on end metal layer segment 22 or 23, side on an end 46
Or the end metal layer segment 20 on 17 and another end 48) it may be constructed the 1st and/or the 2nd castellated electrode.
Although and it is not shown, the 1st castellated electrode 50 with form PTC element one or more PTC elements main surface on match
The 1st layered electrode electrical connection put, in addition, the 2nd castellated electrode 52 is with forming one or more PTC elements of PTC element
The 2nd layered electrode electrical connection being configured in main surface.
In addition, castellated electrode can also form its entirety by the plating of conductive metal.In this case,
Castellated electrode can be formed by handling as follows：The portion other than the part of castellated electrode is formed in masking (masking)
The plating of conductive metal (such as copper, nickel, tin etc.) is carried out after point, then, removes masking.In this case, side gold
Belong to layer segment and end metal layer segment is made of coating layer.
In other modes, end metal layer segment can also be metal foil and the coating layer being formed on.
In this case, such end metal layer segment can be formed by following processing：It is formed on conduct as described later
The insulative resin on piece of the outermost insulating layer of PTC element has been overlapped the crimp body of metal foil, and passes through etching and leave rule
After the metal foil for determining position, plating is carried out.In this approach, side metal layer part is also made of coating layer.
And then in other modes, can also in the castellated electrode being made of coating layer formed as described above or
It is further formed on the outermost layer of castellated electrode that coating layer by metal foil and thereon is formed by plating resistance to
The excellent metal layer of corrosion.Such as in the case where outermost layer is made of copper, it is preferably overlapped the coating layer of nickel in the above, with
The coating layer of the coating layer of the coating layer of overlapping tin or overlapping nickel afterwards, then overlapping gold.
It schematically shows in the case that line Y-Y of PTC device along Fig. 4 of the present invention have been cut off and is occurred in Figure 5
Section.The PTC element 66 with stratiform, the PTC element 66 have the PTC element 10 of diagram as a whole：PTC units
60, it consists of with stratiform PTC elements 54 and the 1st layered electrode 56 being respectively configured on the surface of its both sides and
2 layered electrodes 58；With the 1st insulating layer 62 and the 2nd insulating layer 64, it is located at the outside of each layered electrode (that is, mono- positioned at PTC
The outside of member).PTC element 66 has the 1st end 42 and the 2nd end, in the 1st end, has the 1st four point in its each angle part
One of cylindric recess portion 36, moreover, in the 2nd end, there is the 2nd quadrant cylindrical recess 37 in its angle part.
In addition, it is configured to have stratiform PTC elements, positioned at the layered electrode (being typically metal foil) of its both sides and insulation
The PTC units of layer are well-known component, such as be also disclosed in above patent document, so detailed description will be omitted.
As illustrated, it on the side 40 for providing the 1st quadrant cylindrical recess, forms and the 1st layered electrode
56 the 1st castellated electrodes 50 being electrically connected in its end 68, also, providing each 2nd quadrant cylindrical recess 37
Side 41 on, form the 2nd castellated electrode 52 being electrically connected with the 2nd layered electrode 58 in its end 70.
In order to be readily appreciated that, in the mode of diagram, each castellated electrode is by side metal layer part 72 (with Fig. 1
It is 16 or 18 corresponding) and positioned at PTC element 66 upper surface and lower surface respective both ends terminal metal layer
Part 74 (corresponding with the 20 of Fig. 1 or 24) and 76 compositions (corresponding with the 22 of Fig. 1 or 26).Such metal layer part is such as
It is described from the viewpoint of high efficiency manufacture afterwards, preferably metal. plating layer.
It is schematically shown in figure 6 by situation about having cut off in the same manner as the PTC device of the other modes of the present invention and Fig. 3
Lower occurred section.In the mode of diagram, it is configured to that there are 2 PTC units 90 and 92 as multiple examples, it should
PTC units 90 and 92 are configured to have 2 stratiform PTC elements 78 and 80 and on the surface of the both sides of each PTC elements
The 1st layered electrode 82 and 84 and the 2nd layered electrode 86 and 88 being respectively configured.These PTC units, by insulating layer 94,
96 and 98 clamp and are configured between these insulating layers so that insulating layer is located at its both sides.These insulating layers and configuration
PTC units therebetween are laminated and form the PTC element as laminated body.
In the same manner as the mode of Fig. 5, PTC element has the 1st end 42 and the 2nd end 44, in these ends, has the
1 a quarter cylindrical portion 36 and the 2nd a quarter cylindrical portion 37, in the side for providing these a quarter cylindrical portions
On form the 1st castellated electrode 50 and the 2nd castellated electrode 52.In the mode of diagram, the 1st layered electrode 82 and 84
It is electrically connected in its end with the 1st castellated electrode 50, moreover, the 2nd layered electrode 86 and 88 is electrically connected with the 2nd castellated electrode 52
It connects.
In mode shown in Fig. 6,2 PTC units have been laminated, but can also be clamped according to PTC units by insulating layer
More PTC units are laminated in mode.In this case, by being configured to the layered electrode and the 1st castle of each PTC units
Shape electrode connects, another layered electrode is connect with the 2nd castellated electrode, can form the device that PTC units are connected in parallel.
For example, the PTC device of the present invention can manufacture in the following way.Initially, by by polymer PTC group
Into the main surface of the both sides of polymer PTC piece obtained from object extrusion forming, the metal layer (example of layered electrode can be formed to result
Such as metal foil) it is crimped or extruding is carried out at the same time to polymer PTC constituent and metal layer, it is golden thus to obtain PTC pieces
Belong to the laminated body of state that layer is clamped.Then, etching process is implemented to obtained laminated body, so as to remove the one of metal layer
Divide at (position corresponding to the part 100 of Fig. 5 or Fig. 6), then, in both sides, overlapping results can form the insulative resin of insulating layer
Piece (such as prepreg blank), and then, as needed on the outside overlapping conductive metal foil (such as copper foil), by these crimping into
Integrally obtain crimp body.
Then, as shown in figure 8, the predetermined portion in crimp body is caused to form cylindric hole into eleven punch 11.Then, to complete
Crimp body into perforation integrally implements copper plating treatment together, later, only masking and the terminal metal layer of upper surface and lower surface
The corresponding part in part and the cylindric recess portion formed by perforating, and metal part in addition to this is etched
Processing.Then, remove masking, so as to formed part 22 corresponding with the end metal layer segment of upper surface and lower surface or
23 (respectively cut 90.Sector-like part 104 rectangle) 4 gather and the plating of the rectangle of defined 1 bigger
Coating layer on layer 106 and the side of cylindric recess portion formed by perforating.It schematically shows in fig. 8 in this way
The crimp body 102 of formation.In addition, what is formed in this way is corresponding with the end metal layer segment 22 or 23 of upper surface and lower surface
Part, be made up of copper foil and the copper plate being formed on, but in such as Fig. 5, Fig. 6 and Fig. 7, these made
It is integrated object and shows.Then, can also be as needed, metal deposition processing (such as the plating of nickel, tin is carried out to crimp body 102
Cover processing).
In addition, by into eleven punch 11, the caliper portion of the laminated metal in PTC elements, which is configured, can expose cylindric recess portion
Side surface part, such side surface part by carry out plating so as to side formed castellated electrode side metal. plating layer,
The end of laminated metal is electrically connected with side metal. plating layer.
Pass through the crimp body 102 that terminates such plating cut-off rule 110 along longitudinal direction and the cut-off rule 112 of transverse direction
It is cut off, the PTC device 10 of the present invention one by one can be obtained.It is mutual longitudinal and transverse that PTC device is formed in this way
The crimp body of adjacent state, is then split, and can efficiently manufacture PTC device.
Other than forming quadrant cylindrical recess in the predetermined portion of PTC element, pass through crimping as described above
Formation, perforation and plating of body etc. have the layered electrode and castle of PTC element to manufacture as shown in figs.5 and 6
The method of the PTC device of the structure of shape electrode electrical connection is substantially known, such as can be with reference to above patent document 1 etc..
In addition, the PTC device of the present invention is especially effective in the case where PTC elements is hard.That is, forming PTC elements
Electric conductive polymer constituent be configured to comprising the polymer of hard is compared in the case of, such as including Kynoar tree
In the case of fat (PVDF), compared with more soft resin (such as polyethylene), it is difficult to mitigate expansion/receipts of PTC elements
Stress caused by contracting, so it is to have that quadrant cylindrical recess is set in PTC device and forms castellated electrode herein
Effect.
Symbol description
10 PTC devices
11 PTC element
12nd, 14 semi-circular cylindrical recess portion
16th, 18 side metal layer part
20th, 22,24,26 end metal layer segment
28 substrates
30 pads
32 solder connection portions
34 solder parts
36 the 1st quadrant cylindrical recess
37 the 2nd quadrant cylindrical recess
40th, 41 side
42 the 1st ends
44 the 2nd ends,
46 1 ends
48 another end
50 the 1st castellated electrodes
52 the 2nd castellated electrodes
54 stratiform PTC elements
56 the 1st layered electrodes
58 the 2nd layered electrodes
60 PTC units
62 the 1st insulating layers
64 the 2nd insulating layers
66 PTC element
The end of 68 the 1st layered electrodes
The end of 70 the 2nd layered electrodes,
72 side metal layer parts
74th, 76 end metal layer segment
78th, 80 stratiform PTC elements
82nd, 84 the 1st layered electrode
86th, 88 the 2nd layered electrode
90th, 92 PTC units
94th, 96,98 insulating layer
A part for 100 metal layers
102 crimp bodies
104 sector-like parts
The coating layer of the rectangle of 106 biggers
Claims (7)
1. a kind of PTC device is configured to PTC element,
The PTC element has：
PTC units are consisted of with stratiform PTC elements and the 1st layered electrode being respectively configured on the surface of its both sides
And the 2nd layered electrode；With
Insulating layer is located at the outside of each layered electrode,
The PTC device is characterized in that,
PTC element has the 1st end and the 2nd end, in the 1st end, has the 1st a quarter cylindrical shape in its each angle part
Recess portion, and in the 2nd end, there is the 2nd quadrant cylindrical recess, and the 1st quadrant in its angle part
Each include metal layer in cylindrical recess and the 2nd quadrant cylindrical recess,
The metal layer of the 1st quadrant cylindrical recess is individual metal layer, including：
1st side metal layer part is set to each 1st quadrant cylindrical recess of regulation of the PTC element
In first side；With
1st end metal lining layer segment is set on an end of the first side, and with the 1st side metal
Layer segment links into an integrated entity,
The metal layer of the 2nd quadrant cylindrical recess is individual metal layer, including：
2nd side metal layer part is set to each 2nd quadrant cylindrical recess of regulation of the PTC element
Second side on；With
2nd end metal lining layer segment is set on an end of the second side, and with the 2nd side metal
Layer segment links into an integrated entity,
The PTC element also has the first semi-circular cylindrical recess portion and the second semi-circular cylindrical recess portion, and
Each 1st quadrant cylindrical recess and the first semi-circular cylindrical recess portion have the 1st castle being electrically connected with the 1st layered electrode
Shape electrode, and each 2nd quadrant cylindrical recess and the second semi-circular cylindrical recess portion have what is be connected with the 2nd layered electrode
2nd castellated electrode.
2. a kind of PTC device, which is characterized in that
It is configured to the PTC element as laminated body, the laminated body is by being configured to have multiple stratiform PTC elements and each
The 1st layered electrode and multiple PTC units of the 2nd layered electrode that are respectively configured on the surface of the both sides of PTC elements and configuration
So that the insulating layer that separates that these PTC units are clipped in the middle is laminated between PTC units,
PTC element has the 1st end and the 2nd end,
PTC element has the 1st quadrant cylindrical recess in its each angle part in the 1st end, and in the 2nd end, at it
Angle part has a 2nd quadrant cylindrical recess, and the 1st quadrant cylindrical recess and described 2nd four/
Each include metal layer in one cylindric recess portion,
The metal layer of the 1st quadrant cylindrical recess is individual metal layer, including：
1st side metal layer part is set to each 1st quadrant cylindrical recess of regulation of the PTC element
In first side；With
1st end metal lining layer segment is set on an end of the first side, and with the 1st side metal
Layer segment links into an integrated entity,
The metal layer of the 2nd quadrant cylindrical recess is individual metal layer, including：
2nd side metal layer part is set to each 2nd quadrant cylindrical recess of regulation of the PTC element
Second side on；With
2nd end metal lining layer segment is set on an end of the second side, and with the 2nd side metal
Layer segment links into an integrated entity,
The PTC element also has the first semi-circular cylindrical recess portion and the second semi-circular cylindrical recess portion, and
There is the 1st layered electrode with each PTC elements to be electrically connected for each 1st quadrant cylindrical recess and the first semi-circular cylindrical recess portion
The 1st castellated electrode connect, and each 2nd quadrant cylindrical recess and the second semi-circular cylindrical recess portion have and the 2nd stratiform
The 2nd castellated electrode that electrode is connected.
3. PTC device according to claim 1 or 2, which is characterized in that
The 1st castellated electrode is configured to have the first side for being formed in and providing the 1st quadrant cylindrical recess
The first side metal layer part and the first end metal layer portion that extends on the end of a main surface of PTC element
Point；Or
The 2nd castellated electrode is configured to have the second side for being formed in and providing the 2nd quadrant cylindrical recess
The second side metal layer part and the second end metal layer portion that extends on the end of a main surface of PTC element
Point.
4. PTC device according to claim 3, which is characterized in that
The first end metal layer part of the 1st castellated electrode is configured to metal foil portion and shape on it
Into metal deposition layer segment；Or
The second end metal layer part of the 2nd castellated electrode is configured to metal foil portion and shape on it
Into metal deposition layer segment.
5. PTC device according to claim 3 or 4, which is characterized in that
First side metal layer part of the 1st castellated electrode is formed by metal. plating layer；Or
Second side metal layer part of the 2nd castellated electrode is formed by metal. plating layer.
6. PTC device according to claim 1, which is characterized in that
Stratiform PTC elements are formed by being configured to the electric conductive polymer constituent comprising polyvinylidene fluoride.
7. PTC device according to claim 2, which is characterized in that
Stratiform PTC elements are formed by being configured to the electric conductive polymer constituent comprising polyvinylidene fluoride.
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| JP2011-201663 | 2011-09-15 | ||
| JP2011201663 | 2011-09-15 | ||
| PCT/JP2012/073709 WO2013039227A1 (en) | 2011-09-15 | 2012-09-14 | Positive temperature coefficient (ptc) device |
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| CN103918040A CN103918040A (en) | 2014-07-09 |
| CN103918040B true CN103918040B (en) | 2018-06-29 |
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| JP (1) | JP6124793B2 (en) |
| KR (1) | KR101892789B1 (en) |
| CN (1) | CN103918040B (en) |
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| JP6193772B2 (en) * | 2014-01-30 | 2017-09-06 | 京セラ株式会社 | Thermoelectric module |
| CN104851540A (en) * | 2014-02-18 | 2015-08-19 | 富致科技股份有限公司 | Polymer positive temperature coefficient (PPTC) over-current protection device |
| CN104733144B (en) * | 2015-02-06 | 2017-09-19 | 上海长园维安电子线路保护有限公司 | Surface attaching type circuit protecting element and manufacture method |
| CN104733266B (en) * | 2015-02-15 | 2017-10-27 | 上海长园维安电子线路保护有限公司 | A kind of surface attaching type circuit protecting element and manufacture method |
| CN109727736A (en) * | 2017-10-27 | 2019-05-07 | 上海神沃电子有限公司 | Circuit protecting element |
| CN114072883A (en) | 2019-03-22 | 2022-02-18 | 上海利韬电子有限公司 | PTC device including self-healing fuse |
| WO2021040017A1 (en) | 2019-08-30 | 2021-03-04 | 京セラ株式会社 | Electromagnetic field control member |
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| CN1242100A (en) * | 1996-12-26 | 2000-01-19 | 松下电器产业株式会社 | PTC thermistor and method for manufacturing the same |
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| US6020808A (en) * | 1997-09-03 | 2000-02-01 | Bourns Multifuse (Hong Kong) Ltd. | Multilayer conductive polymer positive temperature coefficent device |
| TW415624U (en) | 1999-04-26 | 2000-12-11 | Polytronics Technology Corp | Surface mounted electric apparatus |
| US6640420B1 (en) * | 1999-09-14 | 2003-11-04 | Tyco Electronics Corporation | Process for manufacturing a composite polymeric circuit protection device |
| TW547866U (en) * | 2002-07-31 | 2003-08-11 | Polytronics Technology Corp | Over-current protection device |
| JP2004253636A (en) * | 2003-02-20 | 2004-09-09 | Koa Corp | Manufacturing method of chip resistor |
| JP2006060145A (en) * | 2004-08-23 | 2006-03-02 | Tdk Corp | Manufacturing method of ptc thermister |
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- 2012-09-14 JP JP2013533742A patent/JP6124793B2/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5852397A (en) * | 1992-07-09 | 1998-12-22 | Raychem Corporation | Electrical devices |
| CN1242100A (en) * | 1996-12-26 | 2000-01-19 | 松下电器产业株式会社 | PTC thermistor and method for manufacturing the same |
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| Publication number | Publication date |
|---|---|
| CN103918040A (en) | 2014-07-09 |
| JP6124793B2 (en) | 2017-05-10 |
| JPWO2013039227A1 (en) | 2015-03-26 |
| KR101892789B1 (en) | 2018-08-28 |
| KR20140067107A (en) | 2014-06-03 |
| WO2013039227A1 (en) | 2013-03-21 |
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