CN109496343A - The manufacturing method of protection element, circuit module and protection element - Google Patents
The manufacturing method of protection element, circuit module and protection element Download PDFInfo
- Publication number
- CN109496343A CN109496343A CN201780047964.3A CN201780047964A CN109496343A CN 109496343 A CN109496343 A CN 109496343A CN 201780047964 A CN201780047964 A CN 201780047964A CN 109496343 A CN109496343 A CN 109496343A
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- CN
- China
- Prior art keywords
- mentioned
- protection element
- venthole
- insulating substrate
- lid component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
- H01H69/02—Manufacture of fuses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
- H01H85/046—Fuses formed as printed circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/165—Casings
- H01H85/175—Casings characterised by the casing shape or form
Abstract
In protection element inside the lid with space and the circuit module for being mounted with the protection element, the inflow that prevents the decline of the adhesive strength of The lid component caused by the expansion of inner air and prevent the damage of electronic component, and prevent sealing resin or cleaning solution etc..Have: insulating substrate (10)；Be arranged insulating substrate (10) the 1st, the 2nd electrode (11,12)；The fusible conductor (13) configured between the 1st, the 2nd electrode (11,12)；And configuration is in the The lid component (20) of side one side (10a) configured with fusible conductor (13) of insulating substrate (10), being provided with, which makes to be configured with the inner spaces (25) of fusible conductor (13), encounters the venthole (23) of element-external, and venthole (23) is sealed by containment member (24).
Description
Technical field
This technology be related to be truncated power supply line, signal wire protection element and be mounted with the electricity of protection element in circuit substrate
Road module.
Background technique
Most of secondary cells that can be charged and recycle, are processed to battery pack and are supplied to user.Especially
In the high lithium ion secondary battery of gravimetric energy density, in order to ensure user and the safety of electronic equipment, generally by overcharge
Several protection circuits of protection, over etc. are built in battery pack, and it is set in the case where there is truncation battery pack
The function of output.
In this protection element, using the FET(Field Effect Transistor for being built in battery pack) switch come
The conduction and cut-off (ON/OFF) exported, to carry out additives for overcharge protection or the over movement of battery pack.However,
Due to some reasons FET switch short circuit destroy in the case where be applied lightning surge etc. and in the case where transient flow super-high-current, or
Person's output voltage decline extremely or in the case where exporting excessive abnormal voltage on the contrary due to the service life of battery unit, it is also necessary to
Battery pack or electronic equipment are protected, to avoid accident on fire etc..Therefore, in such any abnormal shape that can be envisaged that
Under state, in order to which the output of battery unit is safely truncated, also using with according to from external signal cutout current path
The protection element of function.
Truncation element as the protection circuit towards lithium ion secondary battery etc. has in this way as shown in Figure 17 (A) (B)
Element: across on current path the 1st electrode 91, heater extraction electrode 95, connect fusible conductor 93 between the 2nd electrode 92 and
As a part of current path, and pass through spontaneous heating or the heater being arranged in inside protection element caused by overcurrent
94 fuse the fusible conductor 93(on the current path referring to patent document 1).In such protection element 90, make fusing
Liquid fusible conductor 93 is gathered in the heater extraction electrode 95 being connected with heater 94 and the 1st, the 2nd electrode 91,92
On, thus between the 1st, the 2nd electrode 91,92 of separation and chopping current path.
In protection element, fusible conductor 93 fuses due to the fever of heater 94, and in addition fusible conductor 93 is also because of overcurrent
Caused by spontaneous heating and fuse, therefore, sealed by exterior member, that is, The lid component 97 so that fusing fusible conductor 93 do not disperse.
In addition, in order to steadily realize that the fusing of the fusible conductor 93 carried out using heater 94 is acted on, passing through about protection element 90
The lid component 97 is provided with the inner space melted, flowed for fusible conductor 93.In turn, as shown in figure 18, about lid structure
Part 97, surprising energy when in order to be truncated to external release current, and the destruction of element is prevented, it is arranged in The lid component 97 and ventilates
Hole 99.
In addition, in order to prevent the oxidation on 93 surface of fusible conductor and maintain breaking property of fast thawing, protection element 90 coated with remove
The solder flux 98 of the oxidation overlay film on 93 surface of fusible conductor.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2010-003665 bulletin；
Patent document 2: Japanese Unexamined Patent Publication 2001-076610 bulletin.
Summary of the invention
Subject to be solved by the invention
Protection element 90 constitutes a part in charge and discharge path, energy by being mounted on the circuit substrate for being formed with power circuit etc.
It is enough to pass through fusing fusible conductor 93, the charge and discharge path is truncated.
Here, be mounted with the circuit substrate of protection element 90, in order to improve substrate intensity and flatness and be coated with
Resin, protection element 90 is also sealed by resin sometimes.Alternatively, sometimes for the solder flux or solder ball to disperse to printed base plate is removed
Purpose, the post-processing of base-plate cleaning etc. is carried out to circuit substrate.
However, about protection element 90 because venthole 99 is arranged in The lid component 97, thus sealing resin, cleaning solution from
Venthole 99 immerses inside, can generate melted for fusible conductor 93, the inner space flowed is filled or solder flux 98
The problem of being removed, it is possible to the suitable break-in facility of protection element can be damaged.
Although also being circulated extensively in the protection element that The lid component is not provided with the closed type of venthole, as adhesive cover structure
The bonding agent of part, in the case where the bonding agent using the big Thermocurable of adhesive strength, air expansion when heating inside element,
Air is leaked between uncured and liquid bonding agent, to can not be sealed with The lid component, in addition, the bonding of The lid component
Intensity also declines.In addition, when the protection element reflux of closed type to be mounted on circuit substrate, also because of the air inside element
Expansion, the solvent composition gasification in addition including in solder flux so that the internal pressure of element rises, and then because are glued caused by being heated at reflux
The softening of agent is connect, can not be equally sealed with The lid component, and the adhesive strength of The lid component also declines.In turn, in closed type
In protection element, the surprising energy generated when fusible conductor truncation, the danger Insurance for having element to destroy cannot be released to element-external.
In addition, it is also considered that after being provided with the opening protection element of venthole in installation The lid component, by protection element
Resin seal, to prevent the method (referring to Fig.1 9) of the immersion of the sealing material or cleaning solution of circuit substrate.However, in order to can
It is sealed by ground and needs for resin to be coated to protection element entirety and its peripheral portion, and need a large amount of sealing resin.In addition, such as
Shown in Figure 20, in the case that other component is installed around protection element, it is difficult to be applied.In turn, as shown in figure 21,
Each piece of circuit substrate is applied, therefore the productivity of circuit substrate is lower.
This technology solves above-mentioned project, its purpose is to provide the protection element inside lid with space and is mounted with
In the circuit module of the protection element, prevents the decline of the adhesive strength of The lid component caused by the expansion of inner air and prevent electricity
The damage of subassembly, and the protection element for the inflow that sealing resin or cleaning solution can be prevented etc. and the protection element is installed
Circuit module and protection element manufacturing method.
Solution for solving the problem
In order to solve above-mentioned project, protection element involved in this technology has: insulating substrate；It is arranged in above-mentioned insulation
Substrate the 1st, the 2nd electrode；The fusible conductor configured between the above-mentioned 1st, the 2nd electrode；And configuration is in above-mentioned insulation base
The The lid component of the surface side configured with above-mentioned fusible conductor of plate, being provided with, which makes to be configured with the inner space of above-mentioned fusible conductor, touches
To the venthole of element-external, above-mentioned venthole is sealed by containment member.
In addition, circuit module involved in this technology includes: protection element；And surface is mounted with above-mentioned protection element
Circuit substrate, above-mentioned protection element have: insulating substrate；Be arranged in above-mentioned insulating substrate the 1st, the 2nd electrode；Across above-mentioned
1, the fusible conductor configured between the 2nd electrode；And configuration is in the one side configured with above-mentioned fusible conductor of above-mentioned insulating substrate
The The lid component of side, being provided with, which makes to be configured with the inner space of above-mentioned fusible conductor, encounters the venthole of element-external, above-mentioned ventilation
Hole is sealed by containment member.
In addition, the manufacturing method of protection element involved in this technology, forms the 1st, the 2nd electrode on insulating substrate, it is horizontal
It steps up and states between the 1st, the 2nd electrode and configure fusible conductor, on above-mentioned insulating substrate, carry lid structure across heat-curing resin
Part forms the tectosome with the venthole for making the inner space for being configured with above-mentioned fusible conductor encounter element-external, by adding
The above-mentioned tectosome of heat, above-mentioned The lid component is connected on above-mentioned insulating substrate, and seals above-mentioned venthole with containment member.
Invention effect
According to this technology, the expanding gas that can be generated to external release in inner space when connecting The lid component etc..In addition, logical
Stomata is sealed after connecting The lid component by containment member, so as to prevent the sealing resin for being coated to circuit substrate or circuit base
The cleaning solution of plate is immersed in inside element from venthole, and is able to maintain that suitable break-in facility as protection element.In turn, it protects
Protection element can be improved the bonding strength of The lid component and insulating substrate because being sealed in venthole by containment member, to circuit
When substrate reflux installation or air when fuse fusible conductor inside element expands and in the case that internal pressure is got higher, can also prevent
Only The lid component is removed or is damaged from insulating substrate.
Detailed description of the invention
[Fig. 1] Fig. 1 is the stereoscopic figure for showing the protection element for being applicable in this technology.
[Fig. 2] Fig. 2 is the sectional view for showing the circuit module for being applicable in this technology.
[Fig. 3] Fig. 3 is to omit The lid component and show the plan view on the surface of the insulating substrate of protection element.
[Fig. 4] Fig. 4 is the stereoscopic figure that the protection element for being applicable in this technology is shown from back side.
[Fig. 5] Fig. 5 is the sectional view for showing the manufacturing process for the protection element for being applicable in this technology, and (A) is shown on insulating substrate
Configure the state of various electrodes, heater and fusible conductor；(B) state for carrying The lid component is shown；(C) it shows to venthole and supplies
To the state of containment member.
[Fig. 6] Fig. 6 is the figure for showing the protection element of next door setting protruding portion, and (A) is that stereoscopic figure, (B) are to cut
Face figure.
[Fig. 7] Fig. 7 be show next door protruding portion be further arranged to insulating substrate side the 2nd protruding portion outstanding protection member
The figure of part, it is sectional view that (A), which is stereoscopic figure, (B),.
[Fig. 8] Fig. 8 is the figure for showing the protection element in next door setting tapering, and it is sectional view that (A), which is stereoscopic figure, (B),.
[Fig. 9] Fig. 9 is the figure shown in the protection element of internal configuration partition wall member, and it is section that (A), which is stereoscopic figure, (B),
Figure.
[Figure 10] Figure 10 is the figure for showing protection element packaging part involved in reference example, and it is to cut that (A), which is stereoscopic figure, (B),
Face figure.
[Figure 11] Figure 11 is to show the The lid component that could be used without setting top surface and fill heat-curing resin until partition wall member
The figure of the protection element of top surface, it is sectional view that (A), which is stereoscopic figure, (B),.
[Figure 12] Figure 12 is to show to configure heat-curing resin in venthole and be fitted into pin and the protection element after sealing
Figure, it is sectional view that (A), which is stereoscopic figure, (B),.
[Figure 13] Figure 13 is to show by the figure of the protection element in the chimeric pin connection to insulating substrate for being inserted into venthole,
It (A) be stereoscopic figure, (B) is sectional view.
[Figure 14] Figure 14 is to show that the snap tab that The lid component is arranged in is made to be snapped into guarantor involved in the reference example on insulating substrate
The figure of protection element, it be sectional view, (C) is bottom view that (A), which is stereoscopic figure, (B),.
[Figure 15] Figure 15 is the circuit diagram for showing an example of the battery pack for being applicable in protection element.
[Figure 16] Figure 16 is the circuit diagram of protection element.
[Figure 17] Figure 17 is the figure for showing existing protection element, and (A) is that plan view, (B) for omitting The lid component and showing are to cut
Face figure.
[Figure 18] Figure 18 is the stereoscopic figure for showing existing protection element.
[Figure 19] Figure 19 is shown after the opening protection element of installation, and the appearance of the process of protection element resin seal is stood
Body figure.
[Figure 20] Figure 20 is the stereoscopic figure for showing and being mounted on the state of the other component interference around protection element.
[Figure 21] Figure 21 is the stereoscopic figure for showing the process to each piece of circuit substrate coating sealing resin.
Specific embodiment
Hereinafter, side is referring to attached drawing, while to the manufacturing method for being applicable in the protection element of this technology, circuit module and protection element
It is described in detail.In addition, this technology is not limited solely to the following embodiments and the accompanying drawings, in the range for the main points for not departing from this technology
It is interior that obviously various modifications may be made.In addition, attached drawing is that schematically, have ratio of each size etc. to be different from the situation of reality.
Specific size etc. should be judged with reference to the following description.Further it is evident that attached drawing also includes that mutual size is closed between each other
The different part of system, ratio.
As shown in Figure 1 and Figure 2, it is applicable in circuit module 3 of the invention, protection element 1 is installed on 2 surface of circuit substrate.Electricity
Base board 2 is formed with such as the protection circuit of lithium ion secondary battery, protection element 1 is equipped with by surface, in lithium ion
Fusible conductor 13 is packed on the charge and discharge path of secondary cell.And about circuit module 3, if having more than the volume of protection element 1
The high current of definite value flows through, then fusible conductor 13 fuses because of spontaneous heating (Joule heat), thus chopping current path.In addition, electric
Road module 3 passes through the current controling element that circuit substrate 2 etc. is arranged in set timing to the energization of heater 14, utilizes heater
14 fever makes fusible conductor 13 fuse, so as to chopping current path.
In addition, Fig. 1 is to show the stereoscopic figure for being applicable in protection element 1 of the invention, Fig. 2 is to show the peace of protection element 1
Mounted in the sectional view of a part of the circuit module 3 of circuit substrate 2, Fig. 3 is to omit The lid component 20 and show the exhausted of protection element 1
Plan view on the surface 10a of edge substrate 10, Fig. 4 are the stereoscopic figures for showing the back side of protection element 1.
[protection element]
As shown in Fig. 2~Fig. 5, protection element 1 has: insulating substrate 10；It is layered in insulating substrate 10 and is covered by insulating component 15
The heater 14 of lid；It is formed in the 1st electrode 11 and the 2nd electrode 12 at the both ends of insulating substrate 10；On insulating component 15 with
The heater extraction electrode 16 that the mode that heater 14 is overlapped is laminated；And both ends are connect with the 1st, the 2nd electrode 11,12 respectively,
And the fusible conductor 13 that central portion is connect with heater extraction electrode 16.
Insulating substrate 10 such as utilize aluminium oxide, glass ceramics, mullite, zirconium oxide with insulating properties component shape
As general square shape shape.Insulating substrate 10 can also be used in addition to this using epoxy glass substrate, phenolic resin substrate etc.
The material of printed circuit board.
[the 1st, the 2nd electrode]
1st, the 2nd electrode 11,12 is on the surface 10a of insulating substrate 10, by distinguishing discretely near opposite lateral margin
It configures and opens a way, and by carrying aftermentioned fusible conductor 13, to be electrically connected via fusible conductor 13.In addition, in protection member
Part 1 flow through the high current of overrate and fusible conductor 13 because spontaneous heating (Joule heat) fusing or heater 14 are with logical
Electricity generates heat and fusible conductor 13 fuses, so that the 1st, the 2nd electrode 11,12 is truncated.
As shown in Fig. 2, the 1st, the 2nd electrode 11,12 respectively via be arranged in insulating substrate 10 the 1st, the 2nd side 10b,
The concavo-convex mechanism (castellation) of 10c and connect with external connecting electrode 11a, 12a of setting overleaf 10f.Protection
Element 1 is connect via these external connecting electrodes 11a, 12a with the circuit substrate 2 for being formed with external circuit, and it is outer to constitute this
A part of the electrical path of portion's circuit.
1st, the 2nd electrode 11,12 can be formed using the general electrode material of Cu or Ag etc..In addition, in the 1st, the 2nd electricity
On the surface of pole 11,12, Ni/Au coating, Ni/Pd coating, Ni/ are plated with preferably by the known method of coating processing etc.
The overlay film of Pd/Au coating etc..Protection element 1 can prevent the oxidation of the 1st, the 2nd electrode 11,12 as a result, and can prevent rated value
It changes with the rising of conducting resistance.In addition, can prevent connection can in the case where protection element 1 is installed in reflux
The connection scolding tin of molten conductor 13 or the low-melting-point metal for the outer layer for forming fusible conductor 13 melt and corrode (scolding tin erosion)
1st, the 2nd electrode 11,12.
[heater]
The conductive component that heater 14 generates heat when being switched on, such as by W, Mo, Ru, Cu, Ag or based on these
Alloy of ingredient etc. is constituted.Heater 14 can be by gluing these alloys or composition, the coccoid of compound and resin
The mixing such as mixture be made into after paste using screen printing technique come pattern formation on the insulating substrate 10, and be sintered etc. and
It is formed.In addition, one end of heater 14 is connect with the 1st heater electrode 18, the other end is connect with the 2nd heater electrode 19.
Protection element 1 in a manner of covering heater 14 be configured with insulating component 15, via the insulating component 15 with hair
The opposed mode of hot body 14 is formed with heater extraction electrode 16.In order to which efficiency transmits heater 14 to fusible conductor 13 well
Heat, insulating component 15 can also be laminated between heater 14 and insulating substrate 10.As insulating component 15, such as can adopt
Use glass.
One end of heater extraction electrode 16 is connect with the 1st heater electrode 18, and via the 1st heater electrode 18 with
One end of heater 14 is continuous.In addition, the 1st heater electrode 18 is formed in the 3rd side side 10d of insulating substrate 10, the 2nd fever
Body electrode 19 is formed in the 4th side side 10e of insulating substrate 10.In addition, the 2nd heater electrode 19 is through the formation of the 4th side
The concavo-convex mechanism of 10e is connect with the external connecting electrode 19a for the back side 10f for being formed in insulating substrate 10.
Protection element 1 is mounted to circuit substrate 2, so that heater 14 is via external connecting electrode 19a and the 2nd heater
Electrode 19 is connect with the external circuit for being formed in circuit substrate 2.Moreover, heater 14 is to be truncated the electrical path of external circuit
Set timing is energized via external connecting electrode 19a and the 2nd heater electrode 19 and is generated heat, so as to fuse connection the 1st,
The fusible conductor 13 of 2nd electrode 11,12.In addition, fusible conductor 13 fuses, so that the electrical path of heater 14 itself is also cut
It is disconnected, therefore stop fever.
[fusible conductor]
Fusible conductor 13 is made of the material to be fused rapidly by the fever of heater 14, can suitably use such as scolding tin or
Using Sn as the low-melting-point metal of the Pb-free solder of principal component etc..
In addition, fusible conductor 13 can use In, Pb, Ag, Cu or the alloy etc. with any one of these for principal component
Refractory metal, or can also be low-melting-point metal and refractory metal laminated body.By the inclusion of refractory metal and low
Melting point metals, thus in the case where protection element 1 is installed in reflux, even if reflux temperature is more than the fusion temperature of low-melting-point metal
And low-melting-point metal melts, and can also inhibit low-melting-point metal to flow out to outside, and maintain the shape of fusible conductor 13.In addition, molten
It is also that low-melting-point metal is melted refractory metal corrode (scolding tin erosion) when disconnected, thus, it is possible to the fusing points in refractory metal
Temperature below fuses rapidly.
In addition, fusible conductor 13 is connected to heater extraction electrode 16 and the 1st, the 2nd electrode 11,12 by scolding tin etc..It can
Molten conductor 13 can fetch easy connection by Reflow Soldering.
In addition, aoxidize in order to prevent, improve wetability etc., fusible conductor 13 is preferably coated with solder flux 17.
[The lid component]
In addition, protection element 1 in order to protect inside, is provided with The lid component 20 on the surface 10a of insulating substrate 10.The lid component 20
The shape of corresponding insulating substrate 10 is formed with substantially rectangular shape.In addition, as shown in Figure 1, The lid component 20 has is connected to and is provided with
Side 21 on the surface 10a of the insulating substrate 10 of fusible conductor 13 and the top surface on the surface 10a of covering insulating substrate 10
22, on the surface 10a of insulating substrate 10, have when being melted to fusible conductor 13 with spherical expansion, fusing conductor cohesion in hair
Enough inner spaces 25 on hot body extraction electrode 16 or the 1st, the 2nd electrode 11,12.
The side 21 of The lid component 20 is connected on the surface 10a of insulating substrate 10 via bonding agent 26 etc..As connection cover
The bonding agent 26 of component 20, can be suitably using the bonding agent of the excellent Thermocurable of connection reliability.
[venthole]
In addition, as shown in Figure 1 and Figure 2, The lid component 20 is provided with the venthole 23 extended through inside The lid component 20, and venthole
It is sealed in 23 by containment member 24.Venthole 23 is for example open in the top surface of The lid component 20 22.In addition, venthole 23 is by separating lid
Next door 27 between the side 21 of component 20 and inner space 25 configured with fusible conductor 13 is constituted.Next door 27 is from The lid component 20
Top surface 22 formed downwards, when being connected in The lid component 20 on the surface 10a of insulating substrate 10, with insulating substrate 10
The height that several gaps are generated between the 10a of surface is formed.That is, venthole 23 via next door 27 and the gap of insulating substrate 10 and with
Inner space 25 is continuous, with the expanding gas that can be generated to external release in inner space 25 when connecting The lid component 20 etc..
Venthole 23 is sealed after connecting The lid component 20 by containment member 24.It will later in detail for the manufacturing process of the protection element 1
It states.
Venthole 23 is set and by containment member 24 come sealing ventilation hole 23, so that protection element 1 prevents from being coated to
The sealing resin of circuit substrate 2 or the cleaning solution of circuit substrate 2 are immersed inside element from venthole 23 and can be filled for fusible
The inner space or can be able to maintain that conjunction as protection element except this state of affairs of deflux 17 that conductor 13 melted, is flowed
Suitable break-in facility.In addition, being sealed in venthole 23 by containment member 24, about protection element 1 so can be improved The lid component
20 and insulating substrate 10 bonding strength, to circuit substrate 2 carry out reflux installation when or when fusing fusible conductor 13, element
In the case that internal air expansion and internal pressure are got higher, it can also prevent The lid component 20 from removing or damaging from insulating substrate 10.
Venthole 23 is inside element, in the position that do not interfere with heater 14 or fusible conductor 13, for example as shown in Figure 2
In the top of the 1st, the 2nd electrode 11,12, formed along the 1st, the 2nd side 10b, 10c.Other than shown in Fig. 2, venthole
23 can be set in the top of the 1st, the 2nd heater electrode 18,19, alternatively, it is also possible to be cross over the 1st~the 4th side 10b, 10c,
Either one or two of 10d, 10e and it is continuous.It, can also be with from insulation alternatively, venthole 23 can be formed in the side of The lid component 20 21
The mode that the surface 10a of substrate 10 extends through back side 10f is formed.In turn, venthole 23 can be also formed in top by protection element 1
One or more of face 22, side 21, insulating substrate 10.Hereinafter, to form the feelings of venthole 23 in the top surface of The lid component 20 22
Continue to illustrate for condition.
[containment member]
The containment member 24 in sealing ventilation hole 23, such as suitably use the resin 24a of Thermocurable.If enumerating Thermocurable tree
The concrete example of rouge 24a, then can be using such as heat-curing resin (such as CEMEDINE corporation: SX720B).In addition, thermosetting
The property changed resin 24a can also be using diaphragm seal (KYOCERA CHEMICAL CORPORATION system: TMS-701) etc..In addition,
As resin material, such as polyamide-based resin bonding agent (HENKEL corporation: OM678) can also be used.Thermocurable tree
Rouge 24a seal The lid component 20 venthole 23, as long as can prevent the resin material employed in aftermentioned installation procedure or
The inflow in cleaning solution internally space 25, and gas expansion inside element and internal pressure are got higher in the case that, also has and can maintain
The viscosity or intensity that The lid component 20 is connect with insulating substrate 10, no matter the then form of liquid, sheet etc..
Thermocurable bonding agent 24a is supplied into venthole 23, is filled after The lid component 20 is adhered to insulating substrate 10,
It is heated to determined temperature when flowing back installation etc., and is cured.
Here, when the reflux of the vitrification point of heat-curing resin 24a, preferably shorter than protection element 1 is installed to circuit substrate 2
Reflux temperature.Protection element 1 in the installation procedure to circuit substrate 2 solidifies first heat-curing resin 24a as a result,
Therefore, in the case that the gas expansion in inner space 25 and internal pressure rise, also The lid component 20 can be prevented from insulating substrate 10
The state of affairs that falls off of surface 10a.
In addition, the vitrification point of heat-curing resin 24a is preferably 100 DEG C or more.Thereby, it is possible to can in reflow process
Solidify and sealing ventilation hole 23 by ground, and improves The lid component 20 to the bonding strength of insulating substrate 10.
In addition, be illustrated in case where using heat-curing resin 24a as containment member 24, but this skill
Art is not limited to this, and can also use the light-cured resin such as the bonding agent of ultraviolet hardening.Photo-curable bonding
Agent is supplied into venthole 23, is filled after The lid component 20 is adhered to insulating substrate 10, and illuminated ultraviolet light etc. is set
The light of wavelength, to solidify.
[manufacturing process]
Then, side is referring to Fig. 5, while being illustrated to the manufacturing process of protection element 1.As shown in Fig. 5 (A), first in insulation base
The surface 10a of plate 10 forms the 1st, the 2nd electrode 11,12, the 14, the 1st, the 2nd heater electrode 18 of heater, 19, insulating component 15
And heater extraction electrode 16.In addition, external connecting electrode 11a, 12a, 19a are formed in the back side 10f of insulating substrate 10, and
It is connect via concavo-convex mechanism with the 1st, the 2nd electrode 11,12 and the 2nd heater electrode 19.Moreover, making fusible conductor 13 across hair
Hot body extraction electrode 16 is across being mounted between the 1st, the 2nd electrode 11,12.In addition it is also possible to fusible conductor 13 and the 1st, the 2nd electricity
Supply connection scolding tin between pole 11,12 and heater extraction electrode 16.
Then, as shown in Figure 5 (B), The lid component 20 is connected on the surface 10a of insulating substrate 10.It is preferred that side 21
The excellent Thermocurable of lower part supply bonding strength bonding agent 26 and carry out the connection of The lid component 20.The lid component 20 is carried to
Tectosome 28 on the surface 10a of insulating substrate 10, ensures the inner space divided by next door 27 around fusible conductor 13
25。
Then, about on the surface 10a of insulating substrate 10 equipped with the tectosome 28 of The lid component 20, at heating
Reason, fusible conductor 13 is connect via connection scolding tin with the 1st, the 2nd electrode 11,12 and heater extraction electrode 16, in addition, thermosetting
The bonding agent 26 for the property changed solidifies and The lid component 20 is connected on the surface 10a of insulating substrate 10.
At this point, the expanding gas in inner space 25 is discharged via the venthole 23 that The lid component 20 is arranged in outside, because
This will not get higher in the internal pressure for solidifying The lid component 20 among bonding agent 26, also not interfere on the surface 10a to insulating substrate 10
Connection.
Then, as shown in Fig. 5 (C), containment member 24 is supplied to venthole 23 and is sealed, to form protection element
1.Protection element 1 is installed to the circuit substrate 2 for being formed with power circuit etc. by reflux etc., to form circuit module 3.
As containment member 24 using heat-curing resin 24a, heat treatment is can be implemented in protection element 1
And solidify heat-curing resin 24a, but Thermocurable can also be made by the heating to flow back when installing to circuit substrate 2
Resin 24a solidification.At this point, being lower than the heat-curing resin of reflux temperature using vitrification point as heat-curing resin 24a
24a to first solidify heat-curing resin 24a, therefore improves the bonding strength of The lid component 20, the gas in inner space 25
In the case that expansion and internal pressure rise, the state of affairs that can also prevent The lid component 20 from falling off from the surface 10a of insulating substrate 10.
In addition, as containment member 24 using light-cured resin, preferably after being filled to venthole 23
And reflux be installed to before circuit substrate 2, irradiating ultraviolet light and be allowed to solidify.
[variation 1]
Then, the variation of this technology is illustrated.In addition, in the explanation of each variation below for above-mentioned guarantor
Protection element 1 and the identical component of circuit module 3 mark identical label, and omit it in detail.
As shown in fig. 6, protruding portion 31 outstanding can be arranged to the inside of venthole in medial surface in venthole 23.Protection element
1 is arranged protruding portion 31 by the medial surface in venthole 23, when solid as the filling heat-curing resin 24a of containment member 24 or light
When the property changed resin, increase the contact area in venthole 23, so as to further increase the bonding strength of The lid component 20.
Protruding portion 31 can form next door 27 as shown in Figure 6, can also be formed in side 21, be additionally formed in next door
27 and 21 both sides of side.In addition, protruding portion 31 can form one or more along to the ventilation direction of top surface 22, formed multiple
Protruding portion 31 also can be respectively different projecting heights for identical projecting height.In addition, protruding portion 31 can spread The lid component 20
A circumferential direction be formed continuously, can also discontinuously be formed.
As shown in fig. 6, protruding portion 31 is projected into the table of insulating substrate 10 in the case where top surface 22 is provided with venthole 23
On the 10a of face, therefore the heat-curing resin 24a or light-cured resin that are filled into venthole 23 are used as anchor for protruding portion 31
Bolt plays a role, and The lid component 20 is enabled to more to be difficult to fall off from insulating substrate 10.
In addition, as shown in fig. 7, venthole 23 can also be arranged from top surface 22 to insulating substrate 10, and be arranged to ventilation
Protruding portion 31 outstanding in hole 23, and then formed more the 2nd protruding portion 31a more outstanding to 10 side of insulating substrate than protruding portion 31.2nd
Protruding portion 31a is formed to 10 side of insulating substrate is prominent, so as to improve The lid component 20 for parallel with insulating substrate 10
The bonding strength in direction.That is, protruding portion 31 is prominent on the surface 10a of insulating substrate 10, thus improve The lid component 20 for
The intensity of the vertical direction of insulating substrate 10, in contrast, to the surface side 10a the 2nd protruding portion 31a outstanding of insulating substrate 10
Improve the intensity for the direction parallel with insulating substrate 10 of The lid component 20.
In addition, the 2nd protruding portion 31a can form one or more, forming the 2nd multiple protruding portion 31a can be respectively phase
It can also be different projecting heights with projecting height.In addition, the circumferential direction that the 2nd protruding portion 31a can spread The lid component 20 is continuous
It is formed, can also discontinuously be formed.Formed the 2nd protruding portion 31a it is more, then The lid component 20 for parallel with insulating substrate 10
The intensity in direction more increase.
In addition, protruding portion 31 further includes the inner face formation recess portion of next door 27 or side 21, relatively make next door 27 or side
The form for facing recess portion protrusion in face 21 and being formed.In addition, protruding portion 31 further includes being added using so-called surface texture
Work or rough surface processing, embossing processing etc. are come the form that is formed.
Similarly, the 2nd protruding portion 31a further includes that the recess portion opposed with insulating substrate 10 is formed in protruding portion 31, relatively
The form for keeping protruding portion 31 prominent to 10 side of insulating substrate and being formed.In addition, the 2nd protruding portion 31a further includes utilizing so-called table
The processing of face texture or rough surface processing, embossing processing etc. are come the form that is formed.
[variation 2]
As shown in figure 8, venthole 23 can also form the cone that medial surface is formed under cross-section observation throughout ventilation direction with cone cell
Portion 32.Protection element 1 forms tapering 32 by the medial surface in venthole 23, is filling Thermocurable tree as containment member 24
Rouge 24a or when light-cured resin, increases the contact area in venthole 23, and the connection that can be further improved The lid component 20 is strong
Degree.
Tapering 32 can form next door 27 as shown in Figure 8, can also be formed in side 21, be additionally formed in next door 27
And 21 both sides of side.In addition, tapering 32 can be the form expanding along the ventilation direction to top surface 22, it can also be the shape of undergauge
State, but as shown in Figure 8 using the form expanding along the ventilation direction to top surface 22, to be filled into the heat in venthole 23
Curable resin 24a or light-cured resin play a role to tapering 32 as anchor bolt, can make The lid component 20 be more difficult to from
Insulating substrate 10 falls off, and is therefore preferred.
In addition it is also possible to form above-mentioned protruding portion 31 or the 2nd protruding portion 31a in tapering 32.In addition, tapering 32 include with
Curved, ladder-like formation and along ventilation, direction is expanding or the form of undergauge.
[variation 3]
In addition, as shown in figure 9, protection element 1 can also configure to form the next door structure of inner space 25 in the inside of The lid component 20
Part 33, and to filling heat-curing resin 24a or light-cured resin between the top surface of The lid component 20 22 and partition wall member 33.
Partition wall member 33 is similarly formed as the substantially box-like of one side open with The lid component 20, have constitute venthole 23 every
The wall side 33a and next door top surface 33b opposed with the top surface 22 of The lid component 20.Moreover, partition wall member 33 is being insulated by configuring
Inner space 25 is formed on the surface 10a of substrate 10.Next door side 33a of the partition wall member 33 in the side towards venthole 23
Lower part and insulating substrate 10 surface 10a between be formed with gap, keep inner space 25 and venthole 23 continuous.In addition, every
The next door side 33a of side of the wall member 33 not towards venthole 23 is bonded on the surface 10a of insulating substrate 10 and is fixed.
Partition wall member 33 is arranged in protection element 1, so that it is guaranteed that the inner space 25 that fusible conductor 13 is melted, flowed,
And then The lid component 20 is configured above partition wall member 33.Venthole 23 is formed between partition wall member 33 as a result, fills thermosetting
The containment member 24 of the property changed resin 24a etc. and can be improved The lid component 20 and partition wall member 33 is strong to the connection of insulating substrate 10
Degree.In addition, sealing resin is also filled between next door top surface 34b and the top surface 22 of The lid component 20, so as to increase loading,
And it can be further improved The lid component 20 and partition wall member 33 to the bonding strength of insulating substrate 10.
In addition, partition wall member 33 can be set to the component different from The lid component 20, but can also with 20 one of The lid component at
Type.
[reference example 1]
Here, side referring to Fig.1 0, while the structure of protection element packaging part 37 involved in reference example to this technology is illustrated.
Protection element 35 shown in Fig. 10 is only equipped with above-mentioned partition wall member 33 on the surface 10a of insulating substrate 10.Protection element
35 are further installed at insertion (interposer) substrate 36, and The lid component 20 is carried to insertion substrate 36 and is packaged, as a result,
Form protection element packaging part 37.Insertion substrate 36 has with the 1st, the 2nd external connecting electrode 11a, 12a, with heater electrode
The connection electrode 37a of the external connecting electrode connection of 19 connections, and then circuit (not shown) is mounted on by reflux installation etc.
Substrate 2.In addition, The lid component 20 is using excellent bonding agent of Thermocurable of connection reliability etc. or utilizes ultrasonic wave coating
Substrate 36 is inserted into etc. to be connected to.
The The lid component 20 of the protection element packaging part 37, covering protection element 35 is whole, has and constitutes packaging part exterior
Biggish inner space, therefore in the case where gas expansion in reflux installation or fusing fusible conductor 13 etc. inside elements,
The rising of internal pressure is also little by little, to have sufficient patience.Thus, protection element packaging part 37 can prevent protection element 35
The bad connection of The lid component 20 caused by internal pressure rises or destruction.
[variation 4]
In addition, as shown in figure 11, protection element 1 can also could be used without the The lid component 38 of setting partition wall member 33 and top surface 22,
And the containment member of heat-curing resin 24a or light-cured resin etc. is filled on the next door top surface 33b of next door component 33
24.Protection element 1 shown in Figure 11, due between the side 21 of The lid component 38 and the next door side 33a of partition wall member 33 and every
The upper surface of wall top surface 33b is fixed by resin, so can be improved The lid component 38 and partition wall member 33 to the company of insulating substrate 10
Connect intensity.
In addition, partition wall member 33 can be set to the component different from The lid component 38, but can also with 38 one of The lid component at
Type.
[variation 5]
In addition, as shown in figure 12, in protection element 1, as the containment member 24 in sealing ventilation hole 23, in addition to heat-curing resin
It, can also be using the chimeric pin 24b for being fitted to venthole 23 except the bonding agent of 24a etc..Protection element 1 shown in Figure 12 is logical
The buckle stepped part 39 of the chimeric pin 24b of buckle is provided in stomata 23.In addition, the shape shape of the corresponding chimeric pin 24b of venthole 23
As cylindric.In addition, venthole 23 can also be in the top of the 1st, the 2nd electrode 11,12 along the 1st, the 2nd side 10b, 10c
It is formed multiple.Other than shown in Figure 12, venthole 23 also be can be set in the top of the 1st, the 2nd heater electrode 18,19.
In protection element 1, as containment member 24, other than the bonding agent of heat-curing resin 24a etc., also using embedding
The chimeric pin 24b of venthole 23 is closed, thus more reliably sealing ventilation hole 23, and can be improved the connection of The lid component 20
Intensity.
In addition, being fitted into pin 24b other than being buckled in buckle stepped part 39, such as can also be pressed into venthole 23.This
When venthole 23 can form the tapering expanding with cone cell to 22 side of top surface, similarly, chimeric pin 24b can also be formed as forward
Hold the cone cell of undergauge.Alternatively, venthole 23 and chimeric pin 24b can also mutually form thread groove and be screwed.In addition, ventilation
Hole 23 and chimeric pin 24b can also be rectangular at guide protrusion one, and being formed in another party makes guide protrusion inserting in chimeric pin 24b
The guide recess of the side's of entering upward sliding.
[variation 6]
In addition, as shown in figure 13, it, can also be only with chimeric as the containment member 24 in sealing ventilation hole 23 in protection element 1
Sell 24b.In this case, it is fitted into pin 24b to connect with insulating substrate 10, this is preferred on the bonding strength for improving The lid component 20
's.For example, chimeric pin 24b forms thread groove, and it is screw-coupled in the threaded hole for the surface 10a that insulating substrate 10 is set,
So as to which The lid component 20 is threadedly secured in insulating substrate 10.In addition to this, sharp front end can also be formed by being fitted into pin 24b
Portion and the surface 10a for being inserted through insulating substrate 10, to be attached.
In addition, being fitted into pin 24b other than being buckled in buckle stepped part 39, such as can also in the structure shown in Figure 13
To be pressed into venthole 23.Venthole 23 can form the tapering expanding with cone cell to 22 side of top surface at this time, similarly, be fitted into pin
24b can also be formed as the cone cell of forward end undergauge.Alternatively, venthole 23 and chimeric pin 24b can also mutually form thread groove
And it is screwed.In addition, venthole 23 and chimeric pin 24b can also be rectangular at guide protrusion one, being formed in another party makes to draw
The guide recess that pilot portion is slided in the direction of insertion of chimeric pin 24b.
[reference example 2]
Here, side referring to Fig.1 4, while the structure of protection element packaging part 37 involved in reference example to this technology is illustrated.
Protection element 40 shown in Figure 14 (A)~(C) is formed in the side 42 of The lid component 41 in the back side 10f buckle of insulating substrate 10
Snap tab 42a.The lid component 41 has the inside dimension roughly equal with insulating substrate 10, is formed in opposite a pair of of side 42
There is the snap tab 42a for the back side 10f for being snapped into insulating substrate 10.
The lid component 41 is embedded in from the surface side 10a of insulating substrate 10, and snap tab 42a is buckled in the back side of insulating substrate 10
10f, to constitute element exterior body.In addition, protection element 40 by insulating substrate 10 be embedded in The lid component 41, top surface 43 with
The inner space 25 that fusible conductor 13 is melted, flowed is formed between the surface 10a of insulating substrate 10.
Protection element 40 is firmly attached The lid component 41 because snap tab 42a is snapped into the back side 10f of insulating substrate 10
It is right therefore in the case where gas expansion in reflux installation or fusing fusible conductor 13 etc. inside elements with insulating substrate 10
The rising of internal pressure also has sufficient patience.Thus, protection element 40 can prevent The lid component 41 caused by the rising of internal pressure
Bad connection or destruction.
[circuit substrate]
Then, the circuit substrate 2 of installation protection element 1 is illustrated.Circuit substrate 2 uses such as epoxy glass substrate or glass
Insulating substrate well known to rigid substrates or flexible base board of glass substrate, ceramic substrate etc. etc..In addition, as shown in Figure 1 and Figure 2, electricity
Base board 2 has the mounting portion for installing protection element 1 come surface by reflux etc., is provided in mounting portion and is protecting with setting
External connecting electrode 11a, 12a of the back side 10f of the insulating substrate 10 of element 1 and the outside connected with the 2nd heater electrode 19
The connection electrode that connection electrode 19a is separately connected.In addition, what the heater 14 that circuit substrate 2 installs oriented protection element 1 was powered
The element of FET etc..
[application method of circuit module]
Then, it is mounted with that the application method of the circuit module 3 of protection element 1 carries out to protection element 1 and on 2 surface of circuit substrate
Explanation.As shown in figure 15, circuit module 3 is for example used as the circuit in the battery pack of lithium ion secondary battery.
For example, protection element 1 is encased in by adding up to the battery unit 51~54 of 4 lithium ion secondary batteries to form
The battery pack 50 of cell stack 55 and use.
Battery pack 50 has: cell stack 55；Control the charge-discharge control circuit 60 of the charge and discharge of cell stack 55；In electricity
Truncation charging is applicable in protection element 1 of the invention when pond storehouse 55 is abnormal；Detect the inspection of the voltage of each battery unit 51~54
Slowdown monitoring circuit 56；And the current controling element 57 of the movement of the testing result control protection element 1 of corresponding detection circuit 56.
The electricity for needing the control for being protected under overcharge and over-discharge state has been connected in series in cell stack 55
Pool unit 51~54 is releasably connected to charging unit 65 via the positive terminal 50a of battery pack 50, negative terminal 50b,
And it is applied to the charging voltage of self charger 65.By the positive terminal of the battery pack 50 to be charged by charging unit 65
50a, negative terminal 50b are connected to the electronic equipment acted with battery, so as to act the electronic equipment.
Charge-discharge control circuit 60 has: being connected in series in the current path that charging unit 65 is flowed to from cell stack 55
Two current controling elements 61,62；And control the control unit 63 of the movement of these current controling elements 61,62.Current control
Element 61,62 is for example made of field effect transistor (hereinafter referred to as FET), controls grid voltage using control unit 63, thus
Control the conducting and truncation of the current path of cell stack 55.Control unit 63 receives power supply from charging unit 65 and acts,
And the testing result of corresponding detection circuit 56, with the side in the chopping current path when cell stack 55 is overdischarge or overcharge
Formula controls the movement of current controling element 61,62.
Protection element 1 is for example connected to the charging and discharging currents path between cell stack 55 and charge-discharge control circuit 60
On, movement is controlled by current controling element 57.
Detection circuit 56 is connect with each battery unit 51~54, detects the voltage value of each battery unit 51~54, and to filling
The control unit 63 of charge/discharge control circuit 60 supplies each voltage value.In addition, detection circuit 56 is at 51~54 one-tenth of any one battery unit
For the control signal for exporting control current controling element 57 when overcharge voltage or over-discharge piezoelectric voltage.
Current controling element 57 is for example made of FET, according to the detection signal exported from detection circuit 56, works as battery unit
When 51~54 voltage value becomes the voltage more than set overdischarge or overcharge condition, act protection element 1, with electric current
The mode that the charging and discharging currents path of cell stack 55 is independently truncated in the switch motion of control element 61,62 is controlled.
In the battery pack 50 being made of above such structure, the structure of protection element 1 is concretely demonstrated.
Firstly, being applicable in protection element 1 of the invention, there is circuit structure shown in Figure 16.That is, protection element 1 is by passing through
The fusible conductor 13 that is connected in series by heater extraction electrode 16 and via fusible conductor 13 tie point heating power and melt
The circuit structure that the heater 14 of fusible conductor 13 is constituted.In addition, in protection element 1, for example, fusible conductor 13 is connected in series
On charging and discharging currents path, heater 14 is connect with current controling element 57.1st electrode 11 of protection element 1 is via outside
Connection electrode 11a is connect with the open end of cell stack 55, and the 2nd electrode 12 is via external connecting electrode 12a and battery pack 50
The open end of the side positive terminal 50a connects.In addition, heater 14 is connect via heater extraction electrode 16 with fusible conductor 13,
To be connect with the charging and discharging currents path of battery pack 50, in addition via the 2nd heater electrode 19 and external connecting electrode and electricity
Flow-control element 57 connects.
Such battery pack 50 is melted in the energization of heater 14 of protection element 1, adstante febre, fusible conductor 13, and because
Its wetability and be attracted on heater extraction electrode 16.As a result, protection element 1 passes through the fusing of fusible conductor 13, energy
Enough reliably chopping current paths.In addition, fusible conductor 13 fuses, so that the supply path to heater 14 is also truncated, because
This heater 14 also stops fever.
In addition, battery pack 50 flowed the unexpected big electricity more than the rated value of protection element 1 on charge and discharge path
In the case where stream, fusible conductor 13 fuses because of spontaneous heating (Joule heat), so as to chopping current path.
As described above, protection element 1 by containment member 24 come in sealing ventilation hole 23, therefore to circuit substrate 2 into
When row reflux installation or air when fuse fusible conductor 13 inside element expands and in the case that internal pressure is got higher, can also mention
The bonding strength of high The lid component 20 and insulating substrate 10, and can prevent The lid component 20 from removing or damaging from insulating substrate 10.
In addition, being applicable in the protection element 1 of this technology, however it is not limited to the case where battery pack for lithium ion secondary battery,
Obviously the various uses for needing to carry out the truncation of current path using electric signal can also be applied.In addition, being applicable in this technology
The fuse element that spontaneous heating when protection element 1 may not possess heater 14 and be configured to only carry out overcurrent is truncated.
Label declaration
1 protection element；2 circuit substrates；3 circuit modules；10 insulating substrates；11 the 1st electrodes；12 the 2nd electrodes；13 can
Molten conductor；14 heaters；15 insulating components；16 heater extraction electrodes；17 solder flux；18 the 1st heater electrodes；19
2 heater electrodes；20 The lid components；21 sides；22 top surfaces；23 ventholes；24 containment members；24a heat-curing resin；
The chimeric pin of 24b；25 inner spaces；26 bonding agents；27 next doors；28 tectosomes；31 protruding portions；32 taperings；33 next doors
Component；The next door 33a side；The next door 33b top surface；35 protection elements；36 insertion substrates；37 protection element packaging parts；38
The lid component；39 buckle stepped parts；40 protection elements；41 The lid components；42 sides；42a snap tab；43 top surfaces；50 batteries
Group；51~54 battery units；55 cell stacks；56 detection circuits；57 current controling elements；60 charge-discharge control circuits；
61 current controling elements；62 current controling elements；63 control units；65 charging units.
Claims (12)
1. a kind of protection element, has:
Insulating substrate；
Be arranged in above-mentioned insulating substrate the 1st, the 2nd electrode；
The fusible conductor configured between the above-mentioned 1st, the 2nd electrode；And
The The lid component in the surface side configured with above-mentioned fusible conductor of above-mentioned insulating substrate is configured,
Being provided with, which makes to be configured with the inner space of above-mentioned fusible conductor, encounters the venthole of element-external,
Above-mentioned venthole is sealed by containment member.
2. protection element as described in claim 1, wherein above-mentioned containment member is with the vitrification point lower than reflux temperature
Resin.
3. protection element as claimed in claim 2, wherein the vitrification point of above-mentioned resin is 100 DEG C or more.
4. protection element as described in claim 1, wherein above-mentioned containment member is the chimeric structure for being fitted to above-mentioned venthole
Part.
5. such as described in any item protection elements of Claims 1 to 4, wherein above-mentioned venthole is arranged in above-mentioned The lid component.
6. protection element as claimed in claim 5, wherein above-mentioned venthole is provided in medial surface to the inside of above-mentioned venthole
Protruding portion outstanding.
7. protection element as claimed in claim 5, wherein above-mentioned venthole is provided with medial surface and is formed as under cross-section observation
The tapering of cone cell.
8. protection element as claimed in claim 2 or claim 3, wherein have in the inside of above-mentioned The lid component and form above-mentioned internal sky
Between partition wall member, between above-mentioned The lid component and above-mentioned partition wall member be filled with above-mentioned resin.
9. protection element as claimed in claim 8, wherein above-mentioned The lid component top surface and above-mentioned partition wall member top surface it
Between be filled with above-mentioned resin.
10. protection element as claimed in claim 8, wherein
It could be used without the The lid component of setting top surface,
Above-mentioned resin is filled on the top surface of above-mentioned partition wall member.
11. a kind of circuit module, comprising:
Protection element；And
Surface is mounted with the circuit substrate of above-mentioned protection element,
Above-mentioned protection element has:
Insulating substrate；
Be arranged in above-mentioned insulating substrate the 1st, the 2nd electrode；
The fusible conductor configured between the above-mentioned 1st, the 2nd electrode；And
The The lid component in the surface side configured with above-mentioned fusible conductor of above-mentioned insulating substrate is configured,
Being provided with, which makes to be configured with the inner space of above-mentioned fusible conductor, encounters the venthole of element-external,
Above-mentioned venthole is sealed by containment member.
12. a kind of manufacturing method of protection element, wherein
The 1st, the 2nd electrode are formed on insulating substrate, and configure fusible conductor between the above-mentioned 1st, the 2nd electrode；
On above-mentioned insulating substrate, The lid component is carried across heat-curing resin, being formed to have makes to be configured with above-mentioned fusible conductor
Inner space encounter element-external venthole tectosome；
By heating above-mentioned tectosome, above-mentioned The lid component is connected on above-mentioned insulating substrate；
Above-mentioned venthole is sealed with containment member.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016164083A JP6782122B2 (en) | 2016-08-24 | 2016-08-24 | Manufacturing method of protective element, circuit module and protective element |
| JP2016-164083 | 2016-08-24 | ||
| PCT/JP2017/028090 WO2018037866A1 (en) | 2016-08-24 | 2017-08-02 | Protective element, circuit module, and protective element production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109496343A true CN109496343A (en) | 2019-03-19 |
| CN109496343B CN109496343B (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780047964.3A Active CN109496343B (en) | 2016-08-24 | 2017-08-02 | Protection element, circuit module, and method for manufacturing protection element |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6782122B2 (en) |
| KR (1) | KR102263792B1 (en) |
| CN (1) | CN109496343B (en) |
| TW (1) | TWI728168B (en) |
| WO (1) | WO2018037866A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020135959A (en) * | 2019-02-14 | 2020-08-31 | デクセリアルズ株式会社 | Circuit module |
| JP7390825B2 (en) * | 2019-08-29 | 2023-12-04 | デクセリアルズ株式会社 | Protection element, battery pack |
| TWI731801B (en) | 2020-10-12 | 2021-06-21 | 功得電子工業股份有限公司 | Protection device and fabrication method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2018032525A (en) | 2018-03-01 |
| KR102263792B1 (en) | 2021-06-10 |
| TW201807733A (en) | 2018-03-01 |
| JP6782122B2 (en) | 2020-11-11 |
| KR20190015560A (en) | 2019-02-13 |
| CN109496343B (en) | 2021-05-07 |
| WO2018037866A1 (en) | 2018-03-01 |
| TWI728168B (en) | 2021-05-21 |
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