CN101769952A - Voltage detecting device of secondary battery module - Google Patents
Voltage detecting device of secondary battery module Download PDFInfo
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- CN101769952A CN101769952A CN200910252195A CN200910252195A CN101769952A CN 101769952 A CN101769952 A CN 101769952A CN 200910252195 A CN200910252195 A CN 200910252195A CN 200910252195 A CN200910252195 A CN 200910252195A CN 101769952 A CN101769952 A CN 101769952A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
A voltage detecting device of secondary battery module is a voltage detecting device used for at least one secondary battery module (1). The secondary battery module (1) comprises a plurality of secondary batteries (2), each secondary battery (2) has a positive terminal (3a), a negative terminal (3b) and a couple of single-battery terminal (4) that are respectively and electrically connected with the positive terminal (3a) and the negative terminal (3b), a voltage detecting device (9) comprises a printed circuit board (10) configured in a mode of covering the single-battery terminal (4) of the secondary battery module (1), an arithmetic processing device (14) that is installed on the printed circuit board (10) and is shared for detecting the output voltage of each secondary battery (2), and the first connection paths (5, 11, 13) for electrically and mechanically connected the printed circuit board (10) with the single battery terminal (4).
Description
Technical field
The present invention relates to detect the voltage check device of the output voltage of the various battery units that contain in the secondary battery module.
Background technology
This secondary battery module for example as the power supply of electric automobile, is loaded in this car body.Secondary battery module comprises a plurality of secondary cells, and these secondary cells for example are lithium ion batteries.
The outer box that each secondary cell comprises electrode bundle, accommodates the monocell box of this electrode bundle, this monocell box and electrolytic solution are sealed together.Electrode bundle has positive pole, negative pole and the dividing plate of film like, and these positive poles, negative pole and dividing plate alternately overlap.
Being characterized as to compare with the secondary cell of other type of lithium ion battery can be exported big voltage, and its inner energy density height.Relative with it, the unfavorable condition of lithium ion battery is when the output voltage of battery surpasses higher limit that is allowed or the lower limit that is allowed, may cause promoting the deterioration of battery, or battery to break down.
Therefore, need to monitor the information of voltage (output voltage) of each secondary cell (below, only be called monocell) in secondary battery module, secondary battery module contains and is useful on the voltage check device (for example, with reference to following patent documentation 1) that detects information of voltage.The voltage check device of patent documentation 1 is disposed in the monocell recess, this recess be formed at monocell outer box above.In detail, in recess, dispose pair of connectors.A connector is electrically connected the positive terminal of monocell and an input terminal of voltage check device mutually, and the opposing party's connector is electrically connected the negative terminal of monocell and another input terminal of voltage check device mutually.Therefore, voltage check device can detect the voltage between positive pole and negative terminal.
Patent documentation 1:(Japan) spy opens flat 9-330743 communique
But the voltage check device of above-mentioned patent documentation 1 must be installed on respectively on the monocell, and therefore, not only the structure of secondary battery module integral body becomes complicated, and, increased the manufacturing cost of secondary battery module.
Summary of the invention
The objective of the invention is to, a kind of voltage check device is provided, this voltage check device can monitor the information of voltage of each monocell of secondary battery module in the lump.
For realizing described purpose, a kind of voltage check device of secondary battery module is provided, this voltage check device is used at least one secondary battery module, wherein, secondary battery module comprises a plurality of secondary cells, and each secondary cell has positive terminal, negative terminal and a pair of monocell terminal that is electrically connected respectively with these positive terminals and negative terminal, voltage check device comprises: first printed-wiring board (PWB) that disposes according to the mode of the monocell terminal of covering, twice battery module, be installed on first printed-wiring board (PWB) and be the shared arithmetic processing apparatus of the output voltage that detects each secondary cell, with the monocell terminal electricity of first printed-wiring board (PWB) and secondary battery module and first access path that mechanically is connected.
The information of voltage that occurs in positive pole and negative terminal is supplied with to arithmetic processing apparatus by monocell terminal, first access path and first printed-wiring board (PWB), and arithmetic processing apparatus can detect the output voltage of each secondary cell according to information of voltage.
In addition, first access path has: be arranged at respectively the monocell terminal first joint portion, be arranged at first printed-wiring board (PWB) and with respectively corresponding second joint portion, first joint portion, with the mutual electric and coupling apparatus of combination mechanically in first joint portion and corresponding second joint portion.
First printed-wiring board (PWB) of voltage check device is electrically connected with the monocell terminal via coupling apparatus, therefore, does not need to be used to be electrically connected the distribution between the monocell terminal and first printed-wiring board (PWB).In addition, therefore coupling apparatus, in order to fix first printed-wiring board (PWB) with respect to secondary battery module, does not need this coupling apparatus hookup in addition mechanically in conjunction with the monocell terminal and first printed-wiring board (PWB).
Therefore, for secondary battery module electricity and when mechanically connecting voltage check device, can reduce the needed part number of connection of electricity and machinery, therefore, not only the connection operation of voltage check device becomes simple, and, can reduce the manufacturing cost of the secondary battery module that possesses voltage check device.
In addition, preferred first joint portion and second joint portion are threaded hole and through hole, and coupling apparatus is to pass the bolt that through hole is screwed into threaded hole.
In addition, first access path also has the first deflection device, this first deflection device can move on a side of first and second joint portion is approaching with respect to the opposing party and the direction left, therefore, the monocell terminal and first printed-wiring board (PWB) firmly are electrically connected via coupling apparatus, and voltage check device can positively detect the output voltage of each secondary cell.
In detail, the first deflection device has: the distribution with flexibility that separate to be provided with and to have respectively the movable terminal of second joint portion, each movable terminal and first printed-wiring board (PWB) are electrically connected from first printed-wiring board (PWB).
Each movable terminal and other movable terminal are independent mutually, can with the direction of the face orthogonal of first printed-wiring board (PWB) on move freely.Therefore, each movable terminal and corresponding monocell terminal are not influenced by other monocell terminal etc., and via the electric well combination of coupling apparatus, and arithmetic processing apparatus can positively detect the output voltage of each secondary cell.
In addition, arithmetic processing apparatus detects the output voltage with each secondary cell of other secondary battery module of secondary battery module adjacency, and voltage check device also comprises: second printed-wiring board (PWB) that disposes according to the mode of the monocell terminal of the secondary battery module that covers other, with the monocell terminal electricity of second printed-wiring board (PWB) and other secondary battery module and second access path that mechanically is connected, with the cable of first and second printed-wiring board (PWB) electrical connection.
Therefore, when first printed-wiring board (PWB) and second printed-wiring board (PWB) were electrically connected via cable, arithmetic processing apparatus also can detect the output voltage of each secondary cell of other secondary battery module.Under this situation, can reduce the quantity of the desired arithmetic processing apparatus of power brick, cheap power brick can be provided.
In addition, second access path has: be arranged at respectively the monocell terminal the 3rd joint portion, be arranged at second printed-wiring board (PWB) and corresponding with the 3rd joint portion respectively the 4th joint portion, with the 3rd joint portion and corresponding the 4th the joint portion electricity and the coupling apparatus of combination mechanically mutually.
Therefore, second printed-wiring board (PWB) is electrically connected with the monocell terminal via coupling apparatus too, therefore, does not need the distribution that is electrically connected between the monocell terminal and second printed-wiring board (PWB).In addition, therefore coupling apparatus, in order to fix second printed-wiring board (PWB) with respect to secondary battery module, does not need the hookup outside this coupling apparatus with monocell terminal and the mechanically combination of second printed-wiring board (PWB).
In addition, second access path also has the second deflection device, this second deflection device can connect with respect to the opposing party a side the 3rd and the 4th joint portion from direction on move, therefore, the monocell terminal and second printed-wiring board (PWB) firmly are electrically connected via coupling apparatus, and voltage check device can positively detect the output voltage of each secondary cell.
In addition, the second deflection device has: the distribution with flexibility that separate to be provided with and to have respectively the movable terminal of the 4th joint portion, each movable terminal and second printed-wiring board (PWB) are electrically connected from second printed-wiring board (PWB).
Each movable terminal and other movable terminal are independent mutually, and can with the direction of the face quadrature of second printed-wiring board (PWB) on move freely.Therefore, each movable terminal and corresponding monocell terminal are not influenced by other monocell terminal etc. can, via the electric well combination of coupling apparatus, and the arithmetic processing apparatus that is arranged at first printed-wiring board (PWB) can positively detect the output voltage of each secondary cell.
Thus, the voltage check device of secondary battery module can monitor the information of voltage of each monocell of secondary battery module in the lump.
Description of drawings
Fig. 1 is the stereographic map of expression secondary battery module;
Fig. 2 is the planimetric map of voltage check device of first embodiment of the expression secondary battery module that is installed on Fig. 1;
Fig. 3 is the planimetric map of the voltage check device of second embodiment;
Fig. 4 is the outboard profile of a part of the voltage check device of the 3rd embodiment that amplifies of expression.
Embodiment
The secondary battery module 1 of Fig. 1 comprises a plurality of, 4 monocells 2 for example, and these monocells 2 for example are lithium ion batteries, are rectangular shape.In detail, each monocell 2 outer box of metal of comprising electrode bundle, accommodating the monocell box of this electrode bundle, this monocell box and electrolytic solution are sealed together.Electrode bundle has positive pole, negative pole and the dividing plate of film like, and these positive poles, negative pole and the dividing plate state alternately to overlap is wound in around the axis of electrode bundle.In addition, the monocell box is by having electrical insulating property and stable on heating synthetic resin forms.
As can be seen from Figure 1,4 monocells 2 are alignment arrangements and form monocell row 8 in one direction, and the axis of these monocell row 8 is to extending with the direction of the length direction quadrature of monocell 2.In monocell row 8, at 2 intervals of guaranteeing to stipulate of the monocell that adjoins each other.For guaranteeing such interval, secondary battery module 1 also contains and covers 6.This lid 6 is formed by electrically insulating material, from top covering monocell row 8.Particularly, lid 6 has the outer peripheral edges 26 of surrounding monocell row 8, is disposed at the next door 27 of 2 of the monocells of adjacency respectively.As shown in Figure 2, the monocell 2 of adjacency clips next door 27, and next door 27 has determined the interval of 2 of the monocells of adjacency.In addition, be formed with the opening 28 of rectangle in lid 6 central authorities, this opening 28 extends along monocell row 8.
On the other hand, each monocell 2 has positive terminal 3a and negative terminal 3b respectively, and these positive poles and negative terminal 3a, 3b pass above monocell 2 and cover 6 and give prominence to.Specifically, positive pole and negative terminal 3a, 3b are connected with the positive pole and the negative electricity of monocell 2 respectively, on the other hand, connect and cover 6 corresponding holes.That is, on lid 6, be formed with the hole that allows positive pole and negative terminal 3a, 3b to connect respectively.
In addition, positive pole and negative terminal 3a, 3b are disposed at the both ends of monocell 2, and still, the monocell 2 in the monocell row 8 disposes according to the mode that positive pole and negative terminal 3a, 3b alternately arrange along monocell row 8.
As can be seen from Figure 1, on lid 6, dispose 3 bus 7a, 7b, 7c.Bus 7a is arranged in a sidepiece (seeing downside at Fig. 1) of monocell row 8, and bus 7b, 7c lay respectively at the other side of monocell row 8.Bus 7a is electrically connected the positive terminal 3a and the negative terminal 3b of 2 monocells 2 of the central authorities that are positioned at monocell row 8.Bus 7b be electrically connected the end be positioned at monocell row 8 monocell 2 negative terminal 3b and with the positive terminal 3a of the monocell 2 of these monocell 2 adjacency, bus 7c be electrically connected the other end that is positioned at monocell row 8 monocell 2 positive terminal 3a and with the negative terminal 3b of the monocell 2 of these monocell 2 adjacency.Therefore, monocell 2 electricity in the monocell row 8 are connected in series.
In detail, the leading section of positive pole and negative terminal 3a, 3b forms screw, and, on bus 7a, 7b, 7c, form the hole that corresponding positive pole and negative terminal 3a, 3b are connected respectively.In addition, the positive pole and negative terminal 3a, the 3b that connect bus 7a, 7b, 7c are screwed into nut 29, and these nuts 29 are clipping between bus 7a, 7b, 7c and the monocell row 8 under 6 the state of cover, with these buss 7, cover 6 and monocell row 8 combine.That is, bus 7a, 7b, the 7c monocell 2 in the monocell row 8 that not only is connected in series, and also double as links and covers 6 binding key element in monocell row 8.
In addition, each monocell 2 has a pair of monocell terminal 4, and these monocell terminals 4 are disposed at monocell 2 and cover between 6.One monocell terminal 4 is electrically connected with positive terminal 3a, on the other hand, has the front end that extends and expose from the opening 28 of above-mentioned lid 6 to negative terminal 3b.Another monocell terminal 4 is electrically connected with negative terminal 3b, on the other hand, has the front end that extends and expose from opening 28 to positive terminal 3a.Guarantee to have the interval of regulation between the front end of a pair of monocell terminal 4, and be formed with threaded hole 5 respectively at the leading section of monocell terminal 4.
Lay respectively at the two ends of monocell row 8 and the positive pole that is not connected with bus 7a, 7b, 7c and negative terminal 3a, 3b and be electrically connected with two other the negative terminal and positive terminals of secondary battery module via bus respectively, other secondary battery module has the structure same with above-mentioned secondary battery module 1.Under this situation, 3 secondary battery modules are connected in series, and form a power brick.
With reference to Fig. 2, the voltage check device 9 of first embodiment is installed on secondary battery module 1.
On printed-wiring board (PWB) 10, be formed with through hole 11 with the corresponding respectively position of the threaded hole 5 of above-mentioned monocell terminal 4, these through holes 11 are electrically connected with arithmetic processing apparatus 14 via the printed wiring 12 corresponding with printed-wiring board (PWB) 10.
When detecting the output voltage of each monocell 2, arithmetic processing apparatus 14 needn't be electrically connected with whole monocell terminals 4.Promptly, the positive pole and the potential difference (PD) between negative terminal 3a, 3b that are connected by bus 7a, 7b, 7c are zero, therefore, for the positive pole and negative terminal 3a, the 3b that connect by bus 7, as long as only the side of these terminals 3a, 3b is via monocell terminal 4 and printed-wiring board (PWB) 10, promptly arithmetic processing apparatus 14 is electrically connected and gets final product.Under this situation, the quantity of the monocell terminal 4 that should be electrically connected with arithmetic processing apparatus 14 reduces, and therefore, the operation of voltage check device 9 being installed to secondary battery module 1 becomes easy.The printed-wiring board (PWB) 10 of the voltage check device 9 of first embodiment is electrically connected with monocell terminal 4 via bolt 13, therefore, does not need the distribution that is electrically connected between monocell terminal 4 and the printed-wiring board (PWB) 10.In addition, therefore bolt 13, with respect to secondary battery module 1 fixing printing wiring board 10, does not need the hookup outside the bolt 13 with monocell terminal 4 and mechanically combination of printed-wiring board (PWB) 10.
Therefore, for secondary battery module 1 electricity and when mechanically connecting voltage check device 14, can reduce the desired part number of connection of electricity and machinery, therefore, not only the connection operation of voltage check device 14 becomes easily, and can reduce the manufacturing cost of the secondary battery module 1 that possesses voltage check device 14.
In addition, printed-wiring board (PWB) 10 can comprise socket 16.This socket 16 is electrically connected with arithmetic processing apparatus 14 via printed wiring 17, and on the other hand, other the monocell terminal of secondary battery module and the arithmetic processing apparatus 14 that is used for will forming via printed-wiring board (PWB) 10` and cable 22 power brick is electrically connected and uses.Printed-wiring board (PWB) 10` has the structure same with printed-wiring board (PWB) 10 except not possessing this point of arithmetic processing apparatus 14, to be mounted with the same mode of other secondary battery module.Therefore, printed-wiring board (PWB) 10` also has the socket 16` same with socket 16, and cable 22 has the plug that can insert socket 16,16` respectively at its two ends.
Therefore, when the socket 16 of printed-wiring board (PWB) 10 and the socket 16` of printed-wiring board (PWB) 10` were electrically connected via cable 22, arithmetic processing apparatus 14 also can detect the output voltage of each monocell of other secondary battery module.Under this situation, can reduce the quantity of the desired arithmetic processing apparatus 14 of power brick, thereby cheap power brick is provided.
Printed-wiring board (PWB) 10 shown in Figure 2 has a socket 16, but, as mentioned above, under the situation that power brick is formed by 3 secondary battery modules, the printed-wiring board (PWB) 10 that possesses voltage device 9 has two sockets 16, is electrically connected with the printed-wiring board (PWB) 10` of other two secondary battery modules via these sockets 16 and cable 22.In addition, under the situation that power brick is formed by the secondary battery module more than 4, printed-wiring board (PWB) 10 can have the socket with the printed-wiring board (PWB) 10` respective amount that should be electrically connected.
Below, the voltage check device 9 of second embodiment is described with reference to Fig. 3.
The voltage check device 9 of second embodiment comprises printed-wiring board (PWB) 110.This printed-wiring board (PWB) 110 comprises a plurality of U word otch 120 of being formed at its outer peripheral edges, is configured in movable terminal 20 in these U word otch 120 respectively, and movable terminal 20 has above-mentioned through hole 11 respectively.Therefore, each movable terminal 20 is in the state that separates from printed-wiring board (PWB) 110, is electrically connected with printed-wiring board (PWB) 110 pairing printed wirings 12 via the distribution 24 with flexibility.
That is, each movable terminal 20 and other movable terminal 20 are independent mutually, and can with the direction of the face orthogonal of printed-wiring board (PWB) 110 on move freely.Therefore, each movable terminal 20 is not influenced by other monocell terminal 4 grades with pairing monocell terminal 4, and via the electric well combination of bolt, and arithmetic processing apparatus 14 can positively detect the output voltage of each monocell 2.
As shown in Figure 3, the printed-wiring board (PWB) 110` corresponding with above-mentioned printed-wiring board (PWB) 10` is also same with printed-wiring board (PWB) 110, contains movable terminal 20`.Therefore, the pairing movable terminal 20` of the monocell terminal of other secondary battery module also positively is electrically connected, and voltage check device 9 also can positively detect the output voltage of each monocell of secondary battery module.
Below, the voltage check device 9 of the 3rd embodiment is described with reference to Fig. 4.
The voltage check device 9 of the 3rd embodiment is included in slit 34 of being guaranteed between the monocell terminal 4` of monocell 2 and correspondence and the flexible pars convoluta 30 that is formed at monocell terminal 4`.
Flexible pars convoluta 30 is disposed at the cardinal extremity of the monocell terminal 4` that is electrically connected with positive terminal or negative terminal and has between the front end of threaded hole 5.Particularly, flexible pars convoluta 30 bends to the U font by the part with monocell terminal 4` and forms, the leading section that allows monocell terminal 4` to the moving of orthogonal directions above the monocell 2, that is, allow the deflection of monocell terminal 4`.Therefore, monocell terminal 4` and printed-wiring board (PWB) 10 firmly are electrically connected via bolt 32, and voltage check device 14 can positively detect the output voltage of each monocell 2.
In addition, be substituted in monocell terminal 4` and go up the method that forms flexible pars convoluta 30, also can form the flexible pars convoluta at printed-wiring board (PWB) 10 (10`), these flexible pars convolutas form the ring-type of surrounding through hole 11.
In addition, also can use the volute spring (not shown) of electric conductivity to replace flexible pars convoluta 30.These volute springs have and allow bolt 32 to insert logical internal diameters, are disposed between printed-wiring board (PWB) 10 (10`) and the corresponding monocell terminal 4, with these printed-wiring board (PWB)s 10 (10`) and monocell terminal 4` electrical connection.In this case, each monocell terminal 4 and printed-wiring board (PWB) 10 (10`) are electrically connected well via helical spring stretching, and therefore, voltage check device 14 can positively detect the output voltage of each monocell 2.
In addition, as long as printed-wiring board (PWB) 10 (10`) itself has flexibility, then above-mentioned flexible pars convoluta and volute spring just can omit.
In addition, monocell terminal and printed-wiring board (PWB) are by bolt 32 combinations, but, in the combination of these monocell terminals and printed-wiring board (PWB), for example can using, button cooperates the combination of type, the combination of use resin clip, in addition, monocell terminal and printed-wiring board (PWB) also can utilize thermal weld to mutually combine.
For example, secondary battery module can be to be formed by the secondary cell except that lithium ion battery, and the inner structure of this secondary cell also is not limited only to above-mentioned structure.
In addition, the monocell quantity that comprises in secondary battery module is arbitrarily.
Claims (9)
1. a voltage check device (9), it is used at least one secondary battery module (1), described secondary battery module (1) comprises a plurality of secondary cells (2), and a pair of monocell terminal (4) that each secondary cell (2) has positive terminal (3a), negative terminal (3b) and is electrically connected respectively with these positive terminals and negative terminal (3a, 3b)
Described voltage check device (9) is characterised in that, comprising:
First printed-wiring board (PWB) (10,110) that disposes according to the mode of the described monocell terminal (4) that covers described secondary battery module (1),
Be installed on that described first printed-wiring board (PWB) (10,110) is gone up and for the output voltage of each secondary cell of detection (2) by shared arithmetic processing apparatus (14),
With monocell terminal (4) electrical connection of described first printed-wiring board (PWB) (10,110) and described secondary battery module (1) and first access path (5,11,13,20,24) of mechanical connection.
2. voltage check device as claimed in claim 1 (9), wherein,
Described first access path (5,11,13,20,24) has:
Be arranged at respectively described monocell terminal (4) first joint portion (5),
Be arranged at described first printed-wiring board (PWB) (10,110) and with respectively corresponding second joint portion (11), described first joint portion (5),
Coupling apparatus (13) with electric mutually combination in second joint portion (11) of described first joint portion (5) and correspondence and mechanical bond.
3. voltage check device as claimed in claim 2 (9), wherein,
Described first joint portion (5) and second joint portion (11) are threaded hole and through hole, and described coupling apparatus (13) is for being screwed into the bolt of this threaded hole by this through hole.
4. voltage check device as claimed in claim 2 (9), wherein,
Described first access path (5,11,13,20,24) also has the first deflection device (20,24), this first deflection device can connect with respect to the opposing party a side described first and second joint portion (5,11) from direction on move.
5. voltage check device as claimed in claim 4 (9), wherein,
The described first deflection device (20,24) has:
From described first printed-wiring board (PWB) (10,110) separate to be provided with and to have respectively the movable terminal (20) of described second joint portion (11), with the distribution with flexibility (24) of each movable terminal (20) and described first printed-wiring board (PWB) (10,110) electrical connection.
6. as each described voltage check device (9) in the claim 1～5, wherein,
The output voltage of each secondary cell (2) of the secondary battery module (1) of other of described arithmetic processing apparatus (14) detection and described secondary battery module (1) adjacency,
Described voltage check device (9) also comprises:
According to cover second printed-wiring board (PWB) (10`, 110`) that described other the mode of monocell terminal (4) of secondary battery module (1) disposes,
With described second printed-wiring board (PWB) (10`, 110`) and described other the monocell terminal (4) of secondary battery module (1) is electrically connected and second access path of mechanical connection (5,11,13,20`, 24),
The cable (22) that described first and second printed-wiring board (PWB) (10,110,10`, 110`) is electrically connected.
7. voltage check device as claimed in claim 6 (9), wherein,
Described second access path (5,11,13,20`, 24) has:
Be arranged at respectively described monocell terminal (4) the 3rd joint portion (5),
Be arranged at described second printed-wiring board (PWB) (10`, 110`) and corresponding with described the 3rd joint portion (5) respectively the 4th joint portion (11),
Coupling apparatus (13) with electric mutually combination in the 4th joint portion (11) of described the 3rd joint portion (5) and correspondence and mechanical bond.
8. voltage check device as claimed in claim 6 (9), wherein,
Described second access path (5,11,13,20`, 24) also has the second deflection device (20`, 24), this second deflection device can connect with respect to the opposing party a side the described the 3rd and the 4th joint portion (5,11) from direction on move.
9. voltage check device as claimed in claim 8 (9), wherein,
The described second deflection device (20`, 24) has:
From described second printed-wiring board (PWB) (10`, 110`) separate to be provided with and to have respectively the movable terminal (20`) of described the 4th joint portion (11), with the distribution with flexibility (24) of each movable terminal (20`) and described second printed-wiring board (PWB) (110`) electrical connection.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-001501 | 2009-01-07 | ||
| JP2009001501A JP5472570B2 (en) | 2009-01-07 | 2009-01-07 | Secondary battery voltage detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101769952A true CN101769952A (en) | 2010-07-07 |
| CN101769952B CN101769952B (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102521958A Active CN101769952B (en) | 2009-01-07 | 2009-12-15 | Voltage detecting device of secondary battery module |
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| Country | Link |
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| JP (1) | JP5472570B2 (en) |
| CN (1) | CN101769952B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2010160930A (en) | 2010-07-22 |
| JP5472570B2 (en) | 2014-04-16 |
| CN101769952B (en) | 2013-03-06 |
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