CN105308709B - Protection device - Google Patents
Protection device Download PDFInfo
- Publication number
- CN105308709B CN105308709B CN201480034099.5A CN201480034099A CN105308709B CN 105308709 B CN105308709 B CN 105308709B CN 201480034099 A CN201480034099 A CN 201480034099A CN 105308709 B CN105308709 B CN 105308709B
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- China
- Prior art keywords
- terminal
- arm
- ptc
- resin
- protection device
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/64—Contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/34—Means for transmitting heat thereto, e.g. capsule remote from contact member
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H37/5427—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting encapsulated in sealed miniaturised housing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H2037/5463—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting the bimetallic snap element forming part of switched circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H2037/5481—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting the bimetallic snap element being mounted on the contact spring
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
Abstract
Present invention offer is a kind of to include PTC-element and bimetallic element and the protection device that appropriate protection can be also provided for the exception beyond overcurrent.The protection device has：Resin matrix, the 1st terminal, the 2nd terminal, PTC-element, insulating barrier, bimetallic element, arm, upper plate and resin outer cover, by resin matrix and resin outer cover come as defined in resin-case, 1st terminal, PTC-element, the 2nd terminal, insulating barrier, bimetallic element, arm and upper plate are by overlapping successively, 1st terminal and the arm with terminal function form main circuit by arranged in series, 1st terminal, PTC-element and the 2nd terminal series-shunt are electrically connected to form secondary circuit, are configured to：When usual, main circuit is in the state that the 1st terminal is electrically connected in series with arm through contact portion by both party, electric current is without flow through secondary circuit, when abnormal, if to secondary power on circuitry, the electric current causes PTC-element to generate heat, and bimetallic element acts because of the heat, the electrical connection of 1st terminal and arm is cut off, and main circuit turns into open circuit.
Description
Technical field
It is real in the case of exception is produced in electric or electronic installation (such as motor, 2 primary cell groups)
Protection device electric current, having bimetallic element and PTC-element of the device is flowed through in cut-out in matter.
Background technology
Electric current excessively flows through the feelings for becoming abnormal high temperature so as to electric device in electric device (such as motor)
Condition, to cause because of any reason in addition to excessive current the temperature of electric device to become abnormal high situation of temperature etc. abnormal
, it is necessary to cut off the electric current for flowing through electric device during generation, the exception is eliminated as needed, to ensure the safety of electric device.Make
For the unit of this cut-out electric current, bimetallic element is used.
Bimetallic element has bimetallic sheet component, itself is configured to becoming high temperature more than specific temperature
Situation or its surrounding environment temperature uprise so as to bimetallic element exceed specific temperature and become the situation of high temperature
Under, acted and (that is, deformed), the electric current of bimetallic element is flowed through in cut-out.
In the case where such bimetallic element is assembled in electric device, if due to excessive current or other reasons
Cause electric device to become abnormal high temperature, then acted to cut off electric current.Although by the cut-out of electric current, electric device
Temperature reduces, but because the temperature of bimetallic element also reduces, therefore recover and (that is, restore) to arrive original shape, as a result, meeting
Before the safety of electric device is ensured, it is allowed to which electric current flows again.
In order to prevent electric current from so flowing again, therefore, to assure that/the state for maintaining bimetallic element to be acted.Therefore,
Electric device circuit by bimetallic element arranged in series, enable to cut off the electric current of its circuit, and relative to double
Hardware parallel configuration PTC-element.By such configuration, so as in the case where bimetallic element is acted, make stream
The electric current for crossing it travels back across PTC-element, causes PTC-element to produce Joule heat by the electric current, by the heat transfer to bimetallic
Element is so as to ensuring the operating state of bimetallic element.
It is known it is this be configured to electric circuit arranged in series by bimetallic element action it is movable come what is acted
Contact, in addition, by PTC-element relative to the protection device of bimetallic element parallel configuration.This protection device is for example disclosed
In following patent documents 1.In this protection device, the resin matrix with terminal set its space in：PTC
Element, bimetallic element and arm, the outer cover for being previously provided with upper plate are configured on resin matrix, in this condition resin
Matrix is with resin outer cover by bonding agent or ultrasonic wave melting and glued.
Citation
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2005-203277 publications
The content of the invention
- the invention problem to be solved-
In existing protection device as described above, abnormal heating leave protection device position produce or
In the case of caused by exception, such as overvoltage beyond overcurrent, it is impossible to suitably protect electric or electronic installation.Cause
This, it is an object of the present invention to provide one kind even in abnormal heating from protection device position away from produce or it is excessively electric
In the case of exception beyond stream is caused, the protection device for the device that should be protected also can be suitably protected.
- the means to solve the problem-
The present inventor is conscientiously studied to solve above-mentioned problem, and its result is found, by except comprising passing through
The action of bimetallic element is led to beyond the main circuit of the moving contact acted, to also set up to include according to various exceptions
The secondary circuit of the PTC-element of electricity, then can solve the problem that above-mentioned problem, complete the present invention.
According to the 1st purport of the present invention, there is provided a kind of protection device, it has：Resin matrix, the 1st terminal, the 2nd terminal,
PTC-element, insulating barrier, bimetallic element, arm, upper plate and resin outer cover,
By resin matrix and resin outer cover come as defined in resin-case, the 1st terminal, PTC-element, the 2nd terminal,
Insulating barrier, bimetallic element, arm and upper plate by overlapping successively,
1st terminal and the arm with terminal function form main circuit by arranged in series,
1st terminal, PTC-element and the 2nd terminal series-shunt are electrically connected to form secondary circuit,
The protection device is configured to：
When usual, main circuit is in the 1st terminal and arm through contact portion by both party come the state being electrically connected in series, the opposing party
Face, electric current without flow through secondary circuit,
When abnormal, if to secondary power on circuitry, PTC-element is caused to generate heat by the electric current, by the heat so as to double gold
Category element is acted, and the electrical connection of the 1st terminal and arm is cut off, and main circuit turns into open circuit.
- invention effect-
According to the present invention, by addition to being acted by bimetallic element and cut-off main circuit, also setting up
The secondary circuit being energized comprising PTC-element and in exception, so that in the case of the exception beyond overcurrent is caused,
According to the exception, to secondary power on circuitry, Joule heat is produced so as to the PTC-element of secondary circuit, makes bimetallic first by the heat
Part is acted, and main circuit is opened a way, so as to suitably protect the electric or electronic installation that should be protected.
Brief description of the drawings
Fig. 1 schematically shows the protection device 1A of the invention of 3 terminal types stereogram.
Fig. 2 is schematically shown along the straight line x relative to the protection device 1A comprising Fig. 11-x2The vertical face of plane
Sectional view.
Fig. 3 schematically show assume Fig. 1 protection device 1A being decomposed into form its key element in the case of obtain
Exploded perspective view.
Fig. 4 schematically shows the stereogram of Fig. 1 protection device 1A resin matrix.
Fig. 5 schematically shows the stereogram of Fig. 1 protection device 1A the 1st terminal.
Fig. 6 schematically shows the protection device 1B of the invention of 4 terminal types stereogram.
Fig. 7 is schematically shown along the straight line x relative to the protection device 1B comprising Fig. 61-x2The vertical face of plane
Sectional view.
Fig. 8 schematically show assume Fig. 6 protection device 1B being decomposed into form its key element in the case of obtain
Exploded perspective view.
Fig. 9 schematically shows the stereogram of Fig. 6 protection device 1B resin matrix.
Embodiment
Reference picture 1~5 describes the protection device 1A as an embodiment of the present invention in detail.In addition, in Fig. 3 schematically
Ground represents the appearance for decomposing the protection device 1A of the invention shown in Fig. 1 and Fig. 2 according to each key element for forming it, Fig. 3
Schematically show as device be in completion status, assume by the present invention protection device 1A be decomposed into form its key element
In the case of obtained exploded perspective view, it shall be noted that by the way that the key element shown in Fig. 3 is assembled, the guarantor of the present invention can not be obtained
Protection unit.
The protection device 1A of the present invention diagrammatically has the structure shown in Fig. 1~3.Specifically, protection device 1A has
Have by resin matrix 4 and resin outer cover 6 come defined resin-case 8, wherein, the resin matrix 4 has the 1st terminal 2.Tree
The part that aliphatic radical body 4 has the terminal 2 of space the 10, the 1st is exposed in its bottom, in the top of the exposed portion 12 configuration PTC members
Part 14, the 2nd terminal 16 is configured in the top of the PTC-element 14, insulating barrier 18 is configured in the top of the 2nd terminal 16, it is exhausted at this
The top configuration bimetallic element 20 of edge layer 18, the arm that configuration also serves as terminal and worked in the top of the bimetallic element 20
22.A part 28 for a part 24 for 1st terminal, a part 26 for the 2nd terminal and arm penetrates resin-case 8, and extends to
The outside of housing.Exposed portion 12, PTC-element 14 comprising the 1st terminal, a part for the 2nd terminal 16, insulating barrier 18, double gold
The space 10 of a part of category element 20 and arm 22 is closed by upper plate 30, further, except the 1st terminal 2, the
Beyond a part for 2 terminals 16 and arm 22, these parts are covered by resin outer cover 6.In protection device 1A, pass through the 1st end
Son 2 and arm 22 form main circuit, by the 1st terminal 2, the terminal 16 of PTC-element 14 and the 2nd form secondary circuit.Hereinafter,
This protection device with 3 and the connection terminal of other electric key elements is also referred to as to the protection device of " 3 terminal type ".
In the protection device 1A of 3 terminal types of the present invention, when usual, the 1st terminal 2 is with arm 22 through contact portion by both party
32nd, 34 it is electrically connected in series.In addition, bimetallic element 20 is as illustrated, be upward (arm side) convexly curved state.In addition,
2nd terminal 16 is electrically cut off with bimetallic element 20 by insulating barrier 18.When usual, electric current flows through main circuit, that is, flows successively through the 1st end
The contact portion 32 of sub 2, the 1st terminal, the contact portion of arm 34, arm 22 (or flowing counterflow through), electric current is without flow through secondary circuit.It is abnormal
When, start from the electric key element that the 2nd terminal is connected to secondary power on circuitry, electric current flows through secondary circuit, that is, flows successively through the 1st terminal
2nd, PTC-element 14, the 2nd terminal 16 (or flowing counterflow through), by the electric current, PTC-element 14 trips (action), produces joule
Heat, cause bimetallic element 20 to be acted by the heat, from it is convex be deformed into downwards it is convex, thus, arm 22 is pressed towards
Side, the electrical connection of the contact portion 34 and the contact portion 32 of the 1st terminal of arm are cut off, and main circuit turns into open circuit.It is in addition, so-called " flat
When normal ", the electric or electronic installation for referring to protect does not produce exception, so-called " when abnormal ", such as refers to overcurrent stream
Circuit that the electric or electronic installation that crossing to protect is connected, apply overvoltage or in the electrically or electronically dress that should be protected
Put or its periphery produce abnormal heating situation.
In the protection device 1A of 3 terminal types of the present invention, the 1st terminal 2 and resin matrix 4 are formed by insert molding
It is integrated.Pass through such insert molding, it is possible to increase the adhesion between the 1st terminal 2 and resin matrix 4.Resin matrix 4 has
A part for the terminal 2 of space the 10, the 1st is exposed in its bottom.PTC-element 14 is configured on the exposed portion 12 of the 1st terminal 2.
1st terminal 2 has the contact 36 of multiple such as dome shapes on exposed portion 12, such as can have 3, enables to hold
Changing places ensures and the electrical connection of PTC-element 14 (reference picture 4).
1st terminal 2 has the contact portion 32 with the contact portion 34 of arm 22.The contact portion 32 can be by by slider material riveting
The hole for being connected on the correspondence position that insertion is arranged on the 1st terminal 2 is formed.In this manual, so-called " riveting ", refer to penetrating
Be arranged on some part (for example, plate of the 1st terminal) hole, it is embedded with the diameter equal with the diameter in the hole and with than
Another part (for example, slider material) of the big thickness (height) of the thickness in the hole, by by from the hole to portion prominent up and down
Partial pressure is flat, so as to which another part is fixed on into some part.In addition, slider material is not required as cylinder or rib
Cylindricality etc..By forming such contact portion in the 1st terminal 2, can make contact portion that there is larger thermal capacity, thus even in
In the case of flowing through larger current in protection device, it can also prevent the temperature of contact portion from steeply rising, can increase protection
The holding electric current of device.
Form the metal of above-mentioned slider material and be not specifically limited, but the preferably big metal of thermal capacity, for example, it is preferable to
It is silver-nickel, silver-copper, AgCdO, AgSnO2, AgZnO, AgSnOInO, AgCu, copper-tungsten alloy etc..It is low, contact portion from hardness
Shape, can particularly carry out the small design of thickness, thermal capacity it is also big from the viewpoint of, the preferred nickel alloy of 90% silver medal 10%.
1st terminal 2 has rib 72 preferably at least a portion of the 1st terminal, such as shown in Fig. 5, in part 38.At this
In specification, so-called " rib " refers to the key element or structure of the intensity for improving the part for being provided with rib, such as illustrates
Have：Be arranged on the wire of part side, bar-shaped or banding reinforcement material, make part surface a part be deformed into convex or
The concave structure of person.Pass through rib as formation, it is possible to increase the rigidity of protection device, particularly (the 1st terminal reveals from the back side
The side gone out) to the intensity of external pressure.
Above-mentioned 1st terminal 2 is preferably as shown in Fig. 2 be bent to crank shape, to include above-mentioned exposed portion 12
Part 38 be located at resin matrix 4 space 10 deeper position.By being set to such shape, resin matrix 4 can be increased
Space 10 capacity.In this case, the part 38 of the 1st terminal can also resin matrix dorsal part (with the side phase of space 10
Anti- side) expose.By so exposing the part 38 of the 1st terminal, the thickness of protection device can be reduced, and can will be
Heat caused by inside the protection devices such as the contact of the 1st terminal and arm is efficiently dissipated to outside, can further improve holding
Electric current.
As described above, a part 24 for the 1st terminal penetrates the side of resin-case 8 and stretched out.The one of 1st terminal
Portion 24 is for by the protection device 1A of the present invention and the defined electrically part that electrically connects of key element, playing as terminal originally
Function.As illustrated, contact 40 can also be set in a part 24 for the 1st terminal.
Preferably, resin matrix 4 is formed by the high resin of mobility.By using such resin, in insert molding
Resin can carry out more small design over to discreet portions.For example, the bottom surface and side of resin matrix can be reduced
The thickness in face, it can be minimized.
The high resin of so-called above-mentioned mobility, such as example there are：Length of flow is more than 25mm, is preferably 30mm tree
Fat.As the resin, although being not particularly limited, for example, for example there are：SZ6505HF (Sumitomo Chemical Co) and
SZ6506HF (Sumitomo Chemical Co) etc., preferably SZ6505HF.
Above-mentioned " length of flow " is defined as：It is used as note using PS10E1ASE (Nissei Plastic Industrial Co., Ltd's system)
Molder, viaRunning channel portion, width 1.5mm, thickness 0.3mm, length 2.0mm cast gate, 90MPa's
To width 5.0mm under pressure, thickness 0.3mm product carries out the length of product of the injection molded in the case of 6 seconds.
In addition, resin matrix 4 can also be formed by heat-resistant resin.By using such resin, so as to even in quilt
In the case of being supplied to the hot environments such as reflow oven, the deformation of protection element can be also prevented.
As above-mentioned heat-resistant resin, such as example there are：LCP resins, polyamide series resin, PPS systems resin etc..
In the protection device 1A of 3 terminal types of the present invention, configured in the top of the exposed portion 12 of above-mentioned 1st terminal
PTC-element 14.As a result, the 1st terminal 2 for example electrically connects with PTC-element 14 via contact 36.
As above-mentioned PTC-element, ceramic PTC element or polymer PTC device any one can be used, but preferably
Use polymer PTC device.Polymer PTC device compared with ceramic PTC element, even if resistance value in element in itself it is low, into
The aspect for being also difficult to produce self destruction for certain temperature above is favourable.In addition, polymer PTC device and ceramic PTC element
Compare, in order to keep the voltage required for tripped condition low, can also keep tripping in the state of the voltage of circuit is low
State.As a result, contact can maintained to open-circuit condition (lock-out state), the connection closure of contact can be prevented repeatedly
It is favourable in terms of oscillatory occurences.Further, in the case where keeping current value equal, polymer PTC device is than ceramic PTC member
Part is small-sized/low resistance in terms of it is also preferred that.
So-called above-mentioned polymer PTC device, has：By release comprising be dispersed with conductive filler agent (for example, carbon black,
Nickel alloy etc.) polymer (for example, polyethylene, Kynoar etc.) conductive composition obtained from stratiform PTC will
Electrode (such as metal foil) of the plain and configuration in its both sides.
The size and shape of polymer PTC device are simultaneously not specifically limited, but in the protection device of the present invention, such as
Below diameter 2.0mm, the element of below thickness 0.20mm plate-like can be used.
In the protection device of the present invention, in the case where being used as PTC-element using polymer PTC device, its resistance
Value is preferably 0.8~10 Ω, more preferably 4.5~10 Ω.By the way that the resistance value of polymer PTC device is set into 0.8 more than Ω,
It is able to maintain that the state to be tripped under 3V.In addition, by the way that the resistance value of polymer PTC device is set into 4.5 more than Ω, can incite somebody to action
Leakage current during tripped condition under 3V is set to below 0.2A.In addition, by the way that the resistance value of polymer PTC device is set into 10 Ω
Hereinafter, so that when it is manufactured, the deviation of resistance value can easily be reduced.
In addition, in this manual, the resistance value of so-called polymer PTC device, refer to basis at 25 DEG C to polymer
Apply the current value determined in the state of 6.5mV (direct current) voltage between two electrodes of PTC-element and apply voltage
Resistance value (the application electric current of measure, the measurement range of resistance measurer based on 4 terminal methods calculated：100mA), wherein,
The polymer PTC device is that the both sides of the PTC key elements obtained from the conductive composition comprising polymer is extruded crimp electrode
(being preferably nickel foil) is come what is obtained.In addition, electrode resistance value compared with the resistance value of PTC key elements in the case of, due to small
To the degree that can ignore that, therefore the resistance value of PTC-element is substantially equal with the resistance value of PTC key elements.
In the protection device 1A of 3 terminal types of the present invention, the 2nd terminal 16 is configured with the top of PTC-element 14.PTC
Element 14 electrically connects with the 2nd terminal 16 via such as scolding tin.
2nd terminal 16 (is imitated field with being used for according to abnormal to the electric key element of secondary power on circuitry, such as switch element, FET
Answer transistor) etc. connection.By when abnormal, flowing through electric current to PTC-element from above-mentioned electrically key element via the 2nd terminal, from
And PTC-element is set to be high temperature/high resistance state, that is to say, that to make its tripping operation, make bimetallic element 20 dynamic by the heat
Make.
In summary, a part 26 for the 2nd terminal penetrates the side of resin-case 8 and stretched out.The one of 2nd terminal
Part 26 is the part for the protection device 1A of the present invention and defined electric key element to be electrically connected.Although do not remember in the accompanying drawings
Carry, but contact can also be set in a part 26 for the 2nd terminal.
In the protection device 1A of 3 terminal types of the present invention, insulating barrier 18 is configured in the top of the 2nd terminal 16.Insulating barrier
18 are supported in the stage portion 42 being arranged in space 10.Pass through the terminal 16 of insulating barrier the 18, the 2nd and the quilt of bimetallic element 20
It is electrically isolated.
Above-mentioned insulating barrier is formed by Ins. ulative material.As Ins. ulative material, although being not particularly limited, preferable examples
Have：Resin, ceramics, silicone, paper, rubber etc..
As long as the thickness of above-mentioned insulating barrier is able to ensure that the electric insulation of the 2nd terminal and bimetallic element is just not particularly limited,
Can be 50~500 μm, preferably 150~400 μm., more can be by caused Joule heat in PTC-element because insulating barrier is thinner
Efficiently it is delivered to bimetallic element, therefore preferably less than 250 μm, more preferably less than 200 μm.In addition, in order that the 2nd end
Sub, preferably more than 50 μm, more preferably more than 100 μm reliable with the electric insulation of bimetallic element.
In the protection device 1A of 3 terminal types of the present invention, bimetallic element 20 is configured in the top of insulating barrier 18.This
Outside, bimetallic element 20 is under the influence of the heat of PTC-element 14.As long as the bimetallic element 20 can pass through PTC-element 14
In caused Joule heat and deform and be just not particularly limited, element commonly known per se can be used.
In the case that bimetallic element 20 can allow in the space 10 of resin matrix, preferably surface area is as far as possible big.Pass through
Increase surface area, the deviation of operating temperature can be reduced, in addition, the power for pressing arm 22 upward when being deformed in exception becomes
Greatly.
Preferably, bimetallic element 20 can also near the central portion of its lower surface (PTC-element side), have projection,
Such as the convex portion 44 of dome shape.The projection is acted in bimetallic element 20, is changed into downward convex feelings from convex state
Under condition, turn into the state contacted with PTC-element 14.Due to arm 22 by side's pressing further up equivalent to the height of the projection
Part, therefore in the case that the degree of crook of bimetallic element 20 itself is smaller, also can fully press pressure arm 22, energy
The electrical connection of enough contacts for more reliably cutting off arm and the 1st terminal.
In the protection device 1A of 3 terminal types of the present invention, arm 22 is located at the top of bimetallic element 20, is fixed in tree
Aliphatic radical body 4.Fixing means is simultaneously not specifically limited, but the fixed part 46 of arm 22 preferably is bent into crank shape, in its ladder
The both ends in portion 48 set fitting portion 50 (for example, protuberance).In this case, set and the fitting portion pair in resin matrix 4
The fitting portion 52 (for example, recess of above-mentioned protuberance insertion) answered.By making these chimeric (press-ins), arm 22 can be fixed
In resin matrix 4.By being set to such form, it can be ensured that the space 10 of resin matrix 4 is wider, can set bigger pair
Hardware.
In addition, arm 22 has contact portion 34, its contact portion 34 is bent into relative to level side as illustrated, being preferably formed into
It is located at the state slightly by lower section to (bearing of trend of the bottom surface of resin matrix).The contact portion 34 when usual with the 1st terminal
Contact portion 32 is contacted, and in exception by the deformation of bimetallic element 20 so as to which arm 22 is pressed upward, the contact condition is solved
Remove.
Above-mentioned contact portion 34, can be by being arranged on the correspondence position of arm 22 in the same manner as the contact portion 32 of the 1st terminal
Hole, slider material riveting is formed.By forming such contact portion in arm 22, it can make contact portion that there is larger heat
Capacity, thus, can also be prevented in the case that larger electric current flows through protection device contact portion temperature drastically on
Rise, the holding electric current of protection device can be increased.Furthermore it is possible to the 1st terminal contact portion 32 and arm contact portion 34 appoint
Meaning one by slider material by being riveted on the 1st terminal and/or arm to be formed, but preferably two contact portions all pass through riveting
Slider material is formed.
Form the metal phase of slider material of the metal of above-mentioned slider material with forming the contact portion 32 for forming the 1st terminal
Together.
In addition, arm 22 is as shown in the figure, it is possible to have convex portion 54,56.The convex portion is acted in bimetallic element 20, from
Convex state be changed into downwards it is convex in the case of, support one end of bimetallic element, Neng Gougeng by using the convex portion 54
Add the height for the other end for improving bimetallic element, due to arm 22 further just to be pressed to the height equivalent to convex portion 56 more up
Part, therefore in the case that the degree of crook of bimetallic element 20 itself is smaller, also can fully press pressure arm 22, energy
The electrical connection of enough contacts for more reliably cutting off arm and the 1st terminal.Such convex portion preferably arm 22 length direction (Fig. 2's
Left and right directions) on the separately positioned length direction (Fig. 2 left and right directions) in bimetallic element 20 both ends or its near.
Preferably, arm 22 in space 10 as illustrated, be bent into crank shape.By being set to such shape, energy
It is enough in exception by bimetallic element 20 come by pressure arm 22 when, increase the distance between contact portion 32 and contact portion 34 (contact
Gap), it can more reliably release both contact conditions.
In summary, a part 28 for arm penetrates the side of resin-case 8 and stretched out.A part 28 for the arm is to use
In the part for electrically connecting the protection element 1A of the present invention and defined electric key element, the function same with terminal is played.Such as figure
It is shown, contact 58 can be set in a part 28 for arm.
In the protection device 1A of 3 terminal types of the present invention, the top of the arm 22 in space 10, upper plate 30 is configured.
Upper plate 30 has following function：High temperature as defined in turning into bimetallic element 20, which goes forward side by side to take action, to be made upward to press arm 22
When, can by the heat from bimetallic element 20 and in heated condition arm 22 and/or contact portion 34 contact come
Heat is set to dissipate.Therefore, upper plate 30 preferably has an excellent heat conductivity, and heat passes through the arm that is in contact with it from upper plate 30
And shed via a part 28 for arm.Therefore, upper plate 30 is preferably formed by such as sheet metal.As a result, can be as far as possible
Reduce the heat that resin outer cover 6 is traveled to from bimetallic element 20, the influence that resin outer cover 6 can be made to be subject to due to heat in ground
For irreducible minimum.
As illustrated, upper plate 30 essence of space 10 come as defined in will be closed by resin matrix 4.In addition, so-called " essence
Closing ", refer in the manufacture of the protection device of the present invention, in the case where forming resin outer cover 6 by insert molding, place
The state in space 10 can not be invaded in shaping molten resin used.In other words, refer in the protection device of the present invention,
In the case of insert molding resin outer cover 6, the resin unimpinged state to space 10 in used in shaping.
Upper plate 30 has fastener 60, and it is engaged by the engaged part 62 with resin matrix 4 to be fixed.It is preferred that
Ground, fastener 60 are hook shape (hook-shaped (hook) shapes), and engaged part 62 is corresponding kerf.By being set to
Such structure, the region required for engaging can be reduced, as a result, protection device smallerization can be made, or can be true
It is bigger to protect space 10, bigger bimetallic element can be used.
In the protection device 1A of 3 terminal types of the present invention, resin outer cover 6 is configured as covering upper plate 30.Outside resin
The regulation resin matrix 4 of cover 6 and resin-case 8.Resin outer cover 6 can melt with resin matrix 4 for example, by bonding agent, ultrasonic wave
Apply, laser cladding etc. is bonded.
In addition, resin outer cover 6 can also be by the resin matrix 4 with the 1st terminal 2, PTC-element 14, the 2nd terminal 16,
The component that insulating barrier 18, bimetallic element 20, arm 22 and upper plate 30 assemble as illustrated is put into defined mould,
In the shape that the part 24, a part 26 for the 2nd terminal and a part 28 for arm of the 1st terminal stretch out from the side of mould
Under state, by by resin injection molding, i.e., being formed by insert molding around component.Carried by the insert molding
The molten resin for being supplied to mould is integrally formed in the position that the resin portion with resin matrix 4 contacts and the resin, it is ensured that resin
The adhering state of matrix 4 and resin outer cover 6.Pressure when in this case, due to the injection molded by resin outer cover 6 is prevented
Only upper plate deforms, therefore before upper plate 30 is fixed on into resin matrix 4, is in advance embedded in a part 7 for resin outer cover
One part is formed in, the top preferably near central portion, the upper plate of the part 7 with the resin outer cover is fixed on
Resin matrix, the preferably then remainder 7 ' of insert molding resin outer cover again.Further, since it is provided in insert molding
Upper plate 30 to resin matrix 4 (that is, in Fig. 2 downwards) pressing, therefore can further ensure that base by the pressure of the resin of mould
Closing in the space 10 of the resin matrix 4 of upper plate 30.By so forming resin outer cover 6, oxygen can be suppressed and invaded
In space.
In a mode, a part for the upper surface part of upper plate 30 can also be exposed from resin outer cover 6.By being set to
Such structure, can by the inside of protection device, be particularly efficiently dissipated to outside device in heat caused by contact,
Thus, it is possible to increase holding electric current.
In further mode, as described above can also act as its upper plate 30 exposed on the top of device for
Electrode.In this case, a part 28 for arm can be omitted.In this case, flow through the electric current of device and flow successively when usual
The 1st terminal 2, the contact portion 32 of the 1st terminal, the contact portion of arm 34, arm 22, upper plate 30 (or flowing counterflow through) are crossed, in exception
When the 1st terminal the electrical connection of contact portion 32 and the contact portion 34 of arm be cut off.
Form the resin of resin outer cover 6 and be not specifically limited, but it is identical preferably with forming the resin of resin matrix 4.It is logical
Cross and use identical resin, resin matrix 4 can be made bonding with resin outer cover 6 relatively reliable.
In preferable mode, the protection device of 3 terminal types of the invention is characterised by having：Resin matrix, the 1st
Terminal, the 2nd terminal, PTC-element, insulating barrier, bimetallic element, arm, upper plate and resin outer cover,
(1) by resin matrix and resin outer cover come as defined in resin-case, the 1st terminal, PTC-element, the 2nd end
Son, insulating barrier, bimetallic element, arm and upper plate by overlapping successively,
(2) the 1st terminals and the arm with terminal function form main circuit by arranged in series,
(3) the 1st terminals, PTC-element and the 2nd terminal series-shunt are electrically connected to form secondary circuit,
(4) protection device is configured to：When usual, main circuit be in the 1st terminal and arm through contact portion by both party and
The state being electrically connected in series, when abnormal, start to secondary power on circuitry, cause PTC-element to generate heat by the electric current, pass through the heat
Bimetallic element is caused to be acted, the electrical connection of the 1st terminal and arm is cut off, and main circuit turns into open circuit,
The contact portion of (5) the 1st terminals and arm it is at least one by by slider material be riveted on the 1st terminal and/or
Person's arm and formed,
(6) resin matrix is integrally formed by insert molding with the 1st terminal,
At least a portion of (7) the 1st terminals has rib,
(8) resin matrix is formed by the resin with high fluidity,
(9) upper plate has hook-shaped fastener, by being locked the kerf of the fastener and resin matrix
Portion is engaged to be fixed on resin matrix,
(10) arm has crank shape in the space of resin matrix,
(11) fixed part of arm has crank shape, has fitting portion at the both ends of the end difference of the crank, by making
The fitting portion is entrenched in the fitting portion of resin matrix so as to which arm is fixed,
(12) bimetallic element nearby has projection in the central portion.
Wherein, possess at least one of features described above (5)~(12), but be preferably provided with multiple, such as 2~5, enter
One step is preferably provided with whole.
Reference picture 6~9 describes the protection device 1B as other embodiments of the present invention in detail.In addition, show in Fig. 8
Represent to meaning property the protection device 1B of the invention shown in Fig. 6 and Fig. 7 decomposing what is formed according to each key element for forming it
Appearance, Fig. 8 schematically show as device be in completion status, assume by the present invention protection device 1B be decomposed into composition
The exploded perspective view obtained in the case of its key element, it should be noted that by the way that the key element shown in Fig. 8 is assembled, this hair can not be obtained
Bright protection device.
The protection device 1B of the present invention diagrammatically has the structure shown in Fig. 6~8.Protection device 1B is characterised by,
Except protection device 1A inscape also has the 3rd terminal 64, the 3rd terminal 64 substitutes protection device 1A in secondary circuit
In the 1st terminal 2 (being particularly the part 38 of the 1st terminal) and be set, passing through resin matrix 4 and resin outer cover 6
As defined in coming in resin-case 8, the 3rd terminal 64, PTC-element 14, the 2nd terminal 16, insulating barrier 18, bimetallic element 20, arm 22
And upper plate 30, by overlapping successively, the 3rd terminal 64, the terminal 16 of PTC-element 14 and the 2nd are electrically connected in series to form secondary electricity
Road.
Specifically, protection device 1B with pass through the resin matrix 4 with the 1st terminal 2 and the 3rd terminal 64 and tree
Resin-case 8 as defined in fat outer cover 6.In resin matrix 4, the 1st terminal 2 is electrically isolated from each other with the 3rd terminal 64.Resin matrix 4
A part with the terminal 64 of space the 10, the 3rd is exposed in its bottom, and PTC-element 14 is configured in the top of the exposed portion 66,
The top of the PTC-element 14 configures the 2nd terminal 16, insulating barrier 18 is configured in the top of the 2nd terminal 16, in the insulating barrier 18
Top configures bimetallic element 20, and arm 22 is configured in the top of the bimetallic element 20.A part 24 for 1st terminal, the 2nd terminal
A part 26, a part 28 for a part 68 for the 3rd terminal and arm penetrates resin-case 8, and extends to the outside of housing.
A part, the exposed portion 66 of the 3rd terminal comprising the 1st terminal 2, PTC-element 14, a part for the 2nd terminal 16, insulating barrier
18th, the space 10 of a part for bimetallic element 20 and arm 22 is closed by upper plate 30, further, except the 1st
Beyond a part 24 for terminal, a part 26 for the 2nd terminal, a part 68 for the 3rd terminal and a part 28 for arm, these quilts
Resin outer cover 6 covers.In protection device 1B, main circuit is formed by the 1st terminal 2 and arm 22, by the 3rd terminal 64,
PTC-element 14 and the 2nd terminal 16 forms secondary circuit.Hereinafter, will so there are 4 connection terminals with other electric key elements
Protection device be also referred to as " 4 terminal type " protection device.
In the protection device 1B of 4 terminal types of the present invention, when usual, the 1st terminal 2 is with arm 22 through contact portion by both party
To be electrically connected in series.In addition, bimetallic element 20 is as illustrated, be to be bent into upward (arm side) convex state.In addition, the 2nd end
Son 16 is electrically cut off with bimetallic element 20 by insulating barrier 18.When usual, electric current flows through main circuit, that is, flows successively through the 1st
Terminal 2, the contact portion 32 of the 1st terminal, the contact portion of arm 34, arm 22 (or flowing counterflow through), electric current is without flow through secondary circuit.It is abnormal
When, start from the electric key element being connected with the 2nd terminal (or the 3rd terminal) to secondary power on circuitry, electric current flows through secondary circuit, i.e., according to
It is secondary to flow through the 3rd terminal 64, PTC-element 14, the 2nd terminal 16 (or flowing counterflow through), by the electric current, cause PTC-element 14 to be jumped
Lock (action), produce Joule heat, acted by the heat so as to bimetallic element 20, from it is convex be deformed into it is convex downwards,
Thus, arm 22 is pressed upward, and the electrical connection of the contact portion 34 and the contact portion 32 of the 1st terminal of arm is cut off, main circuit into
For open circuit.
In the protection device 1B of 4 terminal types of the present invention, the 1st terminal 2 and the 3rd terminal 64 and resin matrix 4 pass through
Insert molding and be integrally formed.Pass through such insert molding, it is possible to increase the 1st terminal 2 and the 3rd terminal 64 and resin matrix 4
Between closure.The part that resin matrix 4 has the terminal 64 of space the 10, the 3rd is exposed in its bottom.In the 3rd terminal 64
Exposed portion 66 on configure PTC-element 14.3rd terminal 64 has the contact of multiple such as dome shapes on exposed portion 66
70, enable to the electrical connection it is easy to ensure that with PTC-element 14, it is possible to have such as 3 (reference pictures 9).
In the protection device 1B of 4 terminal types of the present invention, cloth is present in the protection device 1A of 3 terminal types in the 1st terminal 2
The 1st terminal part 38, different with the protection device 1A of 3 terminal types from terms of the electric isolution of PTC-element 14.
In the protection device 1B of 4 terminal types of the present invention, the part 68 of the 3rd terminal from the side of resin-case 8 to
Outer extension.A part 68 for 3rd terminal is for the protection device 1B of the present invention to be electrically connected with defined electrically key element
Part.Although not recorded in accompanying drawing, contact can also be set in a part 68 for the 3rd terminal.
In the protection device 1B of 4 terminal types of the present invention, other inscapes：PTC-element 14, the 2nd terminal 16, insulation
In the same manner as layer 18, bimetallic element 20, arm 22, upper plate 30 and resin outer cover 6 are substantial with the protection device 1A of 3 terminal types
Form.
In preferable mode, the protection device of 4 terminal types of the invention is characterised by having：Resin matrix, the 1st
Terminal, the 2nd terminal, the 3rd terminal, PTC-element, insulating barrier, bimetallic element, arm, upper plate and resin outer cover,
(1) by resin matrix and resin outer cover come as defined in resin-case, the 3rd terminal, PTC-element, the 2nd end
Son, insulating barrier, bimetallic element, arm and upper plate by overlapping successively,
(2) the 1st terminals and the arm with terminal function form main circuit by arranged in series,
(3) the 3rd terminals, PTC-element and the 2nd terminal series-shunt are electrically connected to form secondary circuit,
(4) protection device is configured to：When usual, main circuit is in the 1st terminal and gone here and there with arm through contact portion by both party
Join the state of electrical connection, when abnormal, start to secondary power on circuitry, cause PTC-element to generate heat by the electric current, led by the heat
Bimetallic element is caused to be acted, the electrical connection of the 1st terminal and arm is cut off, and main circuit turns into open circuit,
The contact portion of (5) the 1st terminals and arm it is at least one by by slider material be riveted on the 1st terminal and/or
Person arm is formed,
(6) resin matrix is integrally formed by insert molding with the 1st terminal and the 3rd terminal,
At least a portion of (7) the 1st terminals and/or the 3rd terminal has rib,
(8) resin matrix is formed by the resin with high fluidity,
(9) upper plate has hook-shaped fastener, by being locked the kerf of the fastener and resin matrix
Portion engages and is fixed on resin matrix,
(10) arm has crank shape in the space of resin matrix,
(11) fixed part of arm has crank shape, has fitting portion at the both ends of the end difference of the crank, by making
The fitting portion is chimeric with the fitting portion of resin matrix so as to which arm is fixed,
(12) bimetallic element nearby has projection in the central portion.
Wherein, possess at least one of features described above (5)~(12), but be preferably provided with multiple, such as 2~5, enter
One step is preferably provided with whole.
The protection device of the present invention can minimize, for example, can be set to longitudinal direction be below 5.0mm, transverse direction be 3.0mm with
Under, highly be below 0.9mm size, typically, can be set to longitudinal direction be 4.6mm, transverse direction be 2.8mm, be highly 0.88mm
Size.
- industrial applicability-
The protection device of the present invention can be suitably with the lithium ionic cell unit for mobile phone, tablet device etc.
Protection device.
- symbol description-
1A ... protection devices；1B ... protection devices；2 ... the 1st terminals；4 ... resin matrixes；
6 ... resin outer covers；7th, a part for 7 ' ... resin outer covers；8 ... resin-cases；
10 ... spaces；12 ... exposed portion；14 ... PTC-elements；16 ... the 2nd terminals；
18 ... insulating barriers；20 ... bimetallic elements；22 ... arms；
A part for 24 ... the 1st terminals；A part for 26 ... the 2nd terminals；
A part for 28 ... arms；30 ... upper plates；The contact portion of 32 ... the 1st terminals；
The contact portion of 34 ... arms；36 ... contacts；The part of 38 ... the 1st terminals；
40 ... contacts；42 ... stage portions；44 ... convex portions；46 ... fixed parts；48 ... end differences；
50 ... fitting portions；52 ... fitting portions；54th, 56 ... convex portions；58 ... contacts；
60 ... fasteners；62 ... engaged parts；64 ... the 3rd terminals；66 ... exposed portion；
A part for 68 ... the 3rd terminals；70 ... contacts；72 ... ribs.
Claims (16)
1. a kind of protection device, it has：Resin matrix, the 1st terminal, the 2nd terminal, PTC-element, insulating barrier, bimetallic element,
Arm, upper plate and resin outer cover, it is characterised in that
By resin matrix and resin outer cover come as defined in resin-case, the 1st terminal, PTC-element, the 2nd terminal, insulation
Layer, bimetallic element, arm and upper plate by overlapping successively, wherein, the 1st terminal and resin matrix are formed by insert molding
It is integrated, resin matrix has space, and a part for the 1st terminal is exposed in the bottom in the space, in the upper of the exposed portion
Side's configuration PTC-element, the 2nd terminal is configured in the top of the PTC-element, and insulating barrier is configured in the top of the 2nd terminal, exhausted at this
The top configuration bimetallic element of edge layer, the arm that configuration also serves as terminal and worked in the top of the bimetallic element；
1st terminal and the arm with terminal function form main circuit by arranged in series,
1st terminal, PTC-element and the 2nd terminal series-shunt are electrically connected to form secondary circuit,
The protection device is configured to：
When usual, main circuit is in the state that the 1st terminal is electrically connected in series with arm through contact portion by both party, on the other hand,
Electric current without flow through secondary circuit,
When abnormal, if to secondary power on circuitry, PTC-element is caused to generate heat by electric current caused by the energization, bimetallic element profit
Acted with the heat of the heating, the electrical connection of the 1st terminal and arm is cut off, and main circuit turns into open circuit.
2. protection device according to claim 1, it is characterised in that
Further there is the 3rd terminal,
3rd terminal substitutes the 1st terminal to form secondary circuit,
By resin matrix and resin outer cover come as defined in resin-case, the 3rd terminal, PTC-element, the 2nd terminal, insulation
Layer, bimetallic element, arm and upper plate are by overlapping successively.
3. the protection device according to claims 1 or 2, it is characterised in that
Any one of the contact portion of 1st terminal and arm by slider material by being riveted on the 1st terminal and/or arm come shape
Into.
4. protection device according to claim 3, it is characterised in that
The contact portion of terminal and arm both sides by slider material all by being riveted on terminal and arm to be formed.
5. protection device according to claim 3, it is characterised in that
Slider material is silver-nickel alloy.
6. protection device according to claim 1 or 2, it is characterised in that
Resin matrix is integrally formed by insert molding with the 1st terminal and the 3rd terminal if there is in the case of.
7. protection device according to claim 1 or 2, it is characterised in that
At least a portion of 1st terminal or the 3rd terminal if there is in the case of has rib.
8. protection device according to claim 1 or 2, it is characterised in that
Resin matrix is formed by the high resin of mobility.
9. protection device according to claim 1 or 2, it is characterised in that
Upper plate has hook-shaped fastener, by engaging the fastener and the engaged part of the kerf of resin matrix,
So as to which upper plate is fixed on resin matrix.
10. protection device according to claim 1 or 2, it is characterised in that
Arm has crank shape in the space of resin matrix.
11. protection device according to claim 1 or 2, it is characterised in that
The fixed part of arm has crank shape, has fitting portion at the both ends of its end difference, by making the fitting portion and resin
The fitting portion of matrix is fitted together to, so as to which arm is fixed.
12. protection device according to claim 1 or 2, it is characterised in that
Bimetallic element nearby has projection in the central portion.
13. a kind of protection device, it has：Resin matrix, the 1st terminal, the 2nd terminal, PTC-element, insulating barrier, bimetallic member
Part, arm, upper plate and resin outer cover, it is characterised in that
(1) by resin matrix and resin outer cover come as defined in resin-case, the 1st terminal, PTC-element, the 2nd terminal,
Insulating barrier, bimetallic element, arm and upper plate by overlapping successively, wherein, resin matrix has a space, one of the 1st terminal
Divide and expose in the bottom in the space, PTC-element is configured in the top of the exposed portion, the 2nd is configured in the top of the PTC-element
Terminal, insulating barrier is configured in the top of the 2nd terminal, and bimetallic element is configured in the top of the insulating barrier, in bimetallic member
The arm that the top configuration of part also serves as terminal and worked；
(2) the 1st terminals and the arm with terminal function form main circuit by arranged in series,
(3) the 1st terminals, PTC-element and the 2nd terminal series-shunt are electrically connected to form secondary circuit,
(4) protection device is configured to：When usual, main circuit is in the 1st terminal and connected with arm through contact portion by both party
The state of electrical connection, when abnormal, start to secondary power on circuitry, electric current caused by the energization causes PTC-element to generate heat, bimetallic member
Part is acted because of the heat of the heating, and the electrical connection of the 1st terminal and arm is cut off, and main circuit turns into open circuit,
The contact portion of (5) the 1st terminals and arm it is at least one by the way that slider material is riveted on into the 1st terminal and/or arm
To be formed,
(6) resin matrix is integrally formed by insert molding with the 1st terminal,
At least a portion of (7) the 1st terminals has rib,
(8) resin matrix is formed by the resin with high fluidity,
(9) upper plate has hook-shaped fastener, the engaged part card of the kerf by making the fastener and resin matrix
Close so as to be fixed on resin matrix,
(10) arm has crank shape in the space of resin matrix,
(11) fixed part of arm has crank shape, has fitting portion at the both ends of the end difference of the crank, by making this embedding
Conjunction portion is chimeric with the fitting portion of resin matrix so as to which arm is fixed,
(12) bimetallic element nearby has projection in the central portion.
14. a kind of protection device, it has：It is resin matrix, the 1st terminal, the 2nd terminal, the 3rd terminal, PTC-element, insulating barrier, double
Hardware, arm, upper plate and resin outer cover, it is characterised in that
(1) by resin matrix and resin outer cover come as defined in resin-case, the 3rd terminal, PTC-element, the 2nd terminal,
Insulating barrier, bimetallic element, arm and upper plate by overlapping successively, wherein, resin matrix has a space, one of the 3rd terminal
Divide and expose in its bottom, PTC-element is configured in the top of the exposed portion, the 2nd terminal is configured in the top of the PTC-element,
The top configuration insulating barrier of 2nd terminal, configures bimetallic element, in the top of the bimetallic element in the top of the insulating barrier
Configure arm；
(2) the 1st terminals and the arm with terminal function form main circuit by arranged in series,
(3) the 3rd terminals, PTC-element and the 2nd terminal series-shunt are electrically connected to form secondary circuit,
(4) protection device is configured to：When usual, main circuit is in the 1st terminal and connected with arm through contact portion by both party
The state of electrical connection, when abnormal, start to secondary power on circuitry, electric current caused by the energization causes PTC-element to generate heat, bimetallic member
Part is acted because of the heat of the heating, and the electrical connection of the 1st terminal and arm is cut off, and main circuit turns into open circuit,
The contact portion of (5) the 1st terminals and arm it is at least one by the way that slider material is riveted on into the 1st terminal and/or arm
To be formed,
(6) resin matrix is integrally formed by insert molding with the 1st terminal and the 3rd terminal,
At least a portion of (7) the 1st terminals and/or the 3rd terminal has rib,
(8) resin matrix is formed by the resin with high fluidity,
(9) upper plate has hook-shaped fastener, the engaged part card of the kerf by making the fastener and resin matrix
Close and be fixed on resin matrix,
(10) arm has crank shape in the space of resin matrix,
(11) fixed part of arm has crank shape, has fitting portion at the both ends of the end difference of the crank, by making this embedding
Conjunction portion is entrenched in the fitting portion of resin matrix so as to which arm is fixed,
(12) bimetallic element nearby has projection in the central portion.
15. according to the protection device described in any one of claim 1,2,13 or 14, it is characterised in that
Upper plate is exposed from the top of resin outer cover.
16. according to the protection device described in any one of claim 1,2,13 or 14, it is characterised in that
The protection device is that longitudinal direction is below 5.0mm, is laterally below 3.0mm, is highly below 0.9mm size.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013088679 | 2013-04-19 | ||
| JP2013-088679 | 2013-04-19 | ||
| PCT/JP2014/060951 WO2014171516A1 (en) | 2013-04-19 | 2014-04-17 | Protective device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105308709A CN105308709A (en) | 2016-02-03 |
| CN105308709B true CN105308709B (en) | 2018-02-09 |
Family
ID=51731452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480034099.5A Active CN105308709B (en) | 2013-04-19 | 2014-04-17 | Protection device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6195910B2 (en) |
| KR (1) | KR20160002919A (en) |
| CN (1) | CN105308709B (en) |
| WO (1) | WO2014171516A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529213A (en) * | 2016-01-28 | 2016-04-27 | 苏州工业园区凯恩电子科技有限公司 | Combined temperature controller |
| KR102176851B1 (en) | 2016-12-28 | 2020-11-10 | 주식회사 엘지화학 | Reusable fuse |
| JP6967878B2 (en) * | 2017-06-01 | 2021-11-17 | ボーンズ株式会社 | A breaker and a safety circuit equipped with it. |
| CN109649303A (en) * | 2017-10-12 | 2019-04-19 | 阿尔卑斯阿尔派株式会社 | Rotary connector with PTC element |
| JP7017922B2 (en) * | 2017-12-21 | 2022-02-09 | ボーンズ株式会社 | Breaker and safety circuit with it |
| CN112753086B (en) * | 2018-10-25 | 2024-05-24 | 柏恩氏株式会社 | Secondary battery circuit and method for manufacturing same |
| DE102019125452B4 (en) * | 2019-09-20 | 2021-04-22 | Marcel P. HOFSAESS | Temperature dependent switch |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1287373A (en) * | 1999-06-25 | 2001-03-14 | 打矢恒温器株式会社 | Thermally cutoff device and battery assembly |
| CN1604259A (en) * | 2003-09-30 | 2005-04-06 | 阿尔卑斯电气株式会社 | Thermal response switch |
| CN101103509A (en) * | 2005-04-20 | 2008-01-09 | 松下电器产业株式会社 | Secondary battery protection circuit, battery pack and thermosensitive protection switch device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4170232B2 (en) | 2004-01-16 | 2008-10-22 | 株式会社小松ライト製作所 | Safety device using bimetal |
| JP4815151B2 (en) * | 2005-05-31 | 2011-11-16 | パナソニック株式会社 | Thermal protection switch device and battery pack |
| JP5784925B2 (en) * | 2011-02-24 | 2015-09-24 | 株式会社小松ライト製作所 | Thermal protector |
-
2014
- 2014-04-17 KR KR1020157032560A patent/KR20160002919A/en not_active Application Discontinuation
- 2014-04-17 CN CN201480034099.5A patent/CN105308709B/en active Active
- 2014-04-17 JP JP2015512525A patent/JP6195910B2/en active Active
- 2014-04-17 WO PCT/JP2014/060951 patent/WO2014171516A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1287373A (en) * | 1999-06-25 | 2001-03-14 | 打矢恒温器株式会社 | Thermally cutoff device and battery assembly |
| CN1604259A (en) * | 2003-09-30 | 2005-04-06 | 阿尔卑斯电气株式会社 | Thermal response switch |
| CN101103509A (en) * | 2005-04-20 | 2008-01-09 | 松下电器产业株式会社 | Secondary battery protection circuit, battery pack and thermosensitive protection switch device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105308709A (en) | 2016-02-03 |
| KR20160002919A (en) | 2016-01-08 |
| JPWO2014171516A1 (en) | 2017-02-23 |
| JP6195910B2 (en) | 2017-09-13 |
| WO2014171516A1 (en) | 2014-10-23 |
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Effective date of registration: 20190813 Address after: Tokyo, Japan Patentee after: Lite Electronics Co. Ltd. (Japan) Address before: Kanagawa County, Japan Patentee before: Tyco Electronics Corporation |