WO2020110409A1 - Battery-monitoring unit - Google Patents

Battery-monitoring unit Download PDF

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Publication number
WO2020110409A1
WO2020110409A1 PCT/JP2019/035269 JP2019035269W WO2020110409A1 WO 2020110409 A1 WO2020110409 A1 WO 2020110409A1 JP 2019035269 W JP2019035269 W JP 2019035269W WO 2020110409 A1 WO2020110409 A1 WO 2020110409A1
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WO
WIPO (PCT)
Prior art keywords
battery
support member
monitoring unit
contact
movable
Prior art date
Application number
PCT/JP2019/035269
Other languages
French (fr)
Japanese (ja)
Inventor
俊輔 冨田
知樹 金山
Original Assignee
日本メクトロン株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日本メクトロン株式会社 filed Critical 日本メクトロン株式会社
Publication of WO2020110409A1 publication Critical patent/WO2020110409A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/06—Measuring leads; Measuring probes
    • G01R1/067—Measuring probes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/227—Organic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • 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

Definitions

  • the present invention relates to a battery monitoring unit mounting structure.
  • a battery monitoring unit for monitoring the voltage of the battery is attached to the battery mounted on an electric vehicle or the like (Patent Documents 1 and 2).
  • the battery monitoring unit includes various contact portions such as a contact portion that contacts each electrode of the battery and a temperature detection portion that contacts the temperature measuring portion of the battery.
  • the battery monitoring unit must be attached to the battery to ensure that these contacts make contact with their respective desired sites on the battery.
  • various contact portions are hidden behind the unit and cannot be seen from the outside in the state where the unit is attached to the battery, and thus it may be difficult to visually confirm the contact state.
  • the present invention has been made to solve the above-mentioned problems of the conventional technology, and an object of the present invention is to provide a battery monitoring unit capable of easily confirming a mounting state to a battery.
  • the battery monitoring unit in the present invention comprises: A battery monitoring unit for monitoring the state of the battery, A support member attached to the battery, A contact member arranged on the mounting surface of the support member with the battery, and in contact with a predetermined contacted portion of the battery; A movable member that supports the contact member and is movably supported by the support member with respect to the support member; An exposed member having an exposed portion exposed on a surface of the support member opposite to the mounting surface, wherein the movable member receives the force from the contacted portion so that the movable member moves with respect to the support member.
  • an exposure member configured to increase the amount of exposure on the opposite surface of the exposed portion, It is characterized by including.
  • the present invention it is possible to easily confirm the attachment state of the battery monitoring unit to the battery. That is, when the battery monitoring unit is properly attached to the battery, the contact member comes into contact with the contacted portion and receives a force from the contacted portion. Therefore, the movable member moves with respect to the support member due to the force that the contact member receives from the contacted portion, and the exposed amount of the exposed portion of the exposed member increases. Thereby, the contact state of the contact member arranged on the mounting surface of the support member with the battery with respect to the contacted portion can be grasped by the exposure amount of the exposed portion of the exposed member on the surface opposite to the mounting surface. Becomes That is, whether or not the battery monitoring unit is properly attached to the battery can be confirmed without directly confirming the contact state of the contact member with the contacted portion on the attachment surface.
  • a temperature detecting element for detecting the temperature of the contacted portion as a temperature measuring portion in the battery via the contact member may be further provided.
  • the flexible printed wiring board having a temperature measuring wiring to which the temperature sensing element is connected,
  • the flexible printed wiring board is supported by the support member and the movable member,
  • the temperature sensing element may be mounted in a region of the flexible printed wiring board supported by the movable member.
  • the mounting surface of the supporting member with the battery is hidden behind the flat strip-shaped flexible printed wiring board, and the supporting member is attached to the battery. It becomes difficult to see from the other side. With such a configuration, it is possible to confirm whether the battery monitoring unit is properly attached to the battery without directly confirming the contact state of the contact member with the contacted portion on the attachment surface.
  • the configuration of is very suitable.
  • the contact member may be a metal plate attached to the surface of the flexible printed wiring board opposite to the surface on which the temperature detecting element is mounted.
  • the contact member is not particularly limited, when the configuration of the present invention is applied to the temperature detecting portion of the battery in the battery monitoring unit, the contact member is a metal plate having good thermal conductivity. Is preferred.
  • a biasing member that biases the movable member is further provided so as to move the movable member with respect to the support member in a direction in which the exposed amount of the exposed portion decreases.
  • the direction in which the biasing member biases the movable member may be a direction in which the contact member is pressed against the contacted portion.
  • the exposed amount of the exposed portion of the exposed member is reduced when the contact member is not in contact with the contacted portion. Therefore, even after the supporting member is removed from the battery, the exposed amount of the exposed portion of the exposing member does not remain large. If the exposed amount of the exposed portion of the exposed member remains large even after the supporting member is removed from the battery, the supporting member is not attached to the battery during the subsequent attachment of the supporting member to the battery. There is a concern that it will not be possible to determine whether or not it has been installed properly. According to the present invention, such a situation can be avoided. Moreover, since the direction in which the biasing force of the biasing member acts is the direction in which the contact member is pressed against the contacted portion, the contact state between the two can be stabilized.
  • the exposed member may include a protruding portion that protrudes from the opposite surface as the exposed portion, and the amount of protrusion of the protruding portion from the opposite surface may change due to movement of the movable member with respect to the support member. ..
  • the exposed portion of the exposed member is configured to project from the surface on the opposite side, and the amount of projection changes according to the movement of the movable member with respect to the support member, the exposed state of the exposed member is opposite to the mounting surface. It becomes easy to visually recognize from various directions in.
  • the exposed member may be provided so as to be movable with respect to the support member in accordance with the movement of the movable member with respect to the support member, or may be a member integrated with the movable member.
  • the exposed member may be separate from the movable member or may be integrated with the movable member.
  • the installation position of the exposed member and the installation position of the movable member can be arbitrarily set, and the degree of freedom in designing the device configuration can be increased.
  • the device in the case of being integrated, can have a simple structure, which is suitable for size reduction and weight reduction.
  • FIG. 1A is a plan view (viewed from above) showing a schematic configuration of a battery according to an embodiment of the present invention.
  • FIG. 1B is a rear view showing a schematic configuration of a battery monitoring unit according to an embodiment of the present invention (a diagram showing a mounting surface side of a battery in the battery monitoring unit).
  • 2(A) and 2(B) are side views showing a schematic configuration of the battery in the embodiment of the present invention, and FIG. 2(A) shows the battery monitoring unit according to the present embodiment removed.
  • the state, FIG. 2B shows the state in which the battery monitoring unit according to the present embodiment is attached.
  • FIG. 2B shows the state in which the battery monitoring unit according to the present embodiment is attached.
  • FIG. 3 is a schematic cross-sectional view showing the configuration of the thermistor support mechanism in the battery monitoring unit according to the embodiment of the present invention, and is a view corresponding to the cross section taken along arrow A in FIG. 4(A) to 4(C) are schematic cross-sectional views showing the configuration of the thermistor support mechanism in the battery monitoring unit according to the embodiment of the present invention, and are views corresponding to the cross-section taken along arrow B in FIG. Is.
  • FIG. 4A shows a state before the contact member contacts the cell
  • FIG. 4B shows a state in which the contact member contacts the contacted portion of the battery, but the battery monitoring unit is not completely attached to the battery
  • FIG. 4C shows a state in which the battery monitoring unit is completely attached to the battery.
  • ⁇ Battery monitoring unit> A schematic configuration of a battery monitoring unit according to an embodiment of the present invention will be described mainly with reference to FIGS. 1(A) and 2(B).
  • the battery monitoring unit 1 (hereinafter, unit 1) according to the embodiment of the present invention is a unit attached to the battery 2 in order to monitor various states such as the voltage and temperature of the battery 2.
  • the battery 2 is used as a power source in a vehicle such as an electric vehicle (EV) or a hybrid vehicle (HV), and includes a plurality of cells 20.
  • the plurality of cells are arranged so that the cathode 21 and the cathode 22 are adjacent to each other.
  • the plurality of cells 20 are connected in series by the adjacent positive electrode 21 and negative electrode 22 being electrically connected via the bus bar 12.
  • the information such as the voltage and temperature of the battery 2 acquired by the unit 1 is sent to the control unit 3 including the monitoring unit 30 that monitors the voltage and temperature.
  • the unit 1 and the control unit 3 constitute the battery monitoring device in the vehicle described above.
  • the unit 1 includes a flexible printed wiring board (hereinafter, referred to as FPC) 10, a plurality of bus bars 11 and 12, a plurality of thermistors 13, a supporting member 14 that supports them, and a connector 15 attached to an end portion of the FPC 10. , Is provided.
  • the bus bar 11 is connected to a positive electrode 21 and a negative electrode 22, which are both ends of the cells 20 connected in series.
  • the bus bar 12 is used to electrically connect the positive electrode 21 and the negative electrode 22 that are adjacent to each other.
  • the support member 14 is also called a carrier and is a long resin molding member extending in the arrangement direction of the cells 20.
  • the support member 14 supports various configurations of the unit 1 as a frame body of the unit 1 and supports the electrodes 21 and 22 of each cell 20. It is attached to the battery 2 so as to cover it.
  • the battery 2 and the support member 14 are provided with locking portions and fitting portions (not shown), and the battery 2 and the unit 1 are integrated by engaging them with each other and fastening them with bolts or the like. ..
  • the support member 14 may be divided into a plurality of units in the longitudinal direction so that the support member 14 can be flexed as a whole, from the viewpoint of improving maneuverability at the time of attachment to the battery 2.
  • the support member 14 has bus bars 11 and 12 arranged on both sides in a direction orthogonal to the longitudinal direction at predetermined intervals along the longitudinal direction in accordance with the arrangement interval of the cells 20, and a flat plate-shaped FPC 10 is provided therebetween. It is configured to extend in a substantially longitudinal direction. Therefore, the support member 14 has a wider width than the distance between the positive electrode 21 and the negative electrode 22 in one cell 20, and is configured in a long, substantially plate-shaped outer shape that extends along the arrangement direction of the cells 20. Therefore, the attachment surface of the support member 14 with the battery 2 (FIG. 1B) is invisible from the outside when the support member 14 is attached to the battery 2. Further, as the number of cells 20 arranged increases, the support member 14 becomes longer in the arrangement direction of the cells 20.
  • the FPC 10 has a structure in which a plurality of wirings made of copper foil or the like are sandwiched between a flexible base film and a cover film with an adhesive layer interposed therebetween. (Illustration) and the temperature monitoring wiring 103.
  • the voltage monitoring wiring has one end connected to the bus bars 11 and 12 and the other end connected to the connector 15.
  • the temperature monitoring wiring 103 has one end connected to the thermistor 13 and the other end connected to the connector 15.
  • the connector 15 is electrically connected to the monitoring unit 30 of the control unit 3.
  • a plurality of thermistors 13 as temperature detecting elements are provided at intervals in the longitudinal direction so as to detect the temperature of the long batteries 2 in the array direction of the cells 20 at a plurality of locations in the longitudinal direction.
  • three thermistors 13a, 13b, 13c are arranged at both ends and the center in the longitudinal direction, and the temperature of the battery 2 is measured at each place.
  • the thermistor 13a measures the side surface (upper surface) 20s (see FIGS. 3 and 4) of the cell 20a arranged at the one end on the one side in the longitudinal direction of the battery 2 (arrangement direction of the cells 20) (see FIGS. 3 and 4) to measure the temperature at the end of the battery 2. It is arranged as a part.
  • the side surface 20s of the cell 20b arranged at the farthest end on the other side in the longitudinal direction of the battery 2 is arranged as an end temperature measuring unit of the battery 2.
  • the side surface 20s of the cell 20c arranged at the center of the battery 2 in the longitudinal direction is arranged as a central temperature measuring portion of the battery 2.
  • Contact members 40a, 40b, 40c are provided so as to be exposed on the surface of the support member 14 that is attached to the battery 2.
  • the contact members 40a, 40b, 40c are configured to contact the side surfaces 20s of the cells 20a, 20b, 20c when the support member 14 is attached to the battery 2.
  • the thermistors 13a, 13b, 13c are configured to detect the temperatures of the cells 20a, 20b, 20c via the contact members 40a, 40b, 40c, respectively. That is, the thermistors 13a, 13b, and 13c, together with the contact members 40a, 40b, and 40c, form a temperature detection unit in the unit 1.
  • the FPC 10 is used for wiring, and as described above, various contact portions that must come into contact with the battery 2 in the unit 1 are hidden behind the flat plate-shaped FPC 10. Therefore, it is difficult to visually confirm whether or not the contact portion surely contacts the desired contacted portion of the battery 2.
  • the support member 14 that is long in the arrangement direction of the cells 20 and that is made of a flexible material such as resin is attached to the battery 2 in a partially floating state. And becomes more remarkable as the length becomes longer. When such an attached state is formed, the contact state of the contact portion may become insufficient. Therefore, the unit 1 according to the present embodiment is provided with the following support mechanism of the temperature detection unit as a configuration for supporting the contact portion of the support member 14 that contacts the contacted portion of the battery 2.
  • the support mechanism of the temperature detection unit in the unit 1 according to the present embodiment will be described mainly with reference to FIGS. 3 to 4C.
  • the supporting member 14 of the unit 1 according to the present embodiment is a movable supporting portion as a movable member that is movable with respect to the supporting member 14 (main body) as a mechanism that supports the temperature detecting portion including the thermistor 13 as a temperature detecting element. 140 is provided.
  • the three positions where the three thermistors 13a, 13b, and 13c are arranged have the same support mechanism.
  • the movable support portion 140 has guided portions 141a, 141b, 141c guided by the guide portions 14g1, 14g2, 14g3 provided on the support member 14.
  • the movable support portion 140 guides the guided portions 141a, 141b, and 141c to the guide portions 14g1, 14g2, and 14g3, so that the support member 14 moves the cell 20 relative to the support member 14. It moves in a direction perpendicular to the side surface (upper surface) 20s as the temperature measuring portion (contacted portion).
  • the guided portions 141a, 141b, 141c are portions of the movable supporting portion 140 that extend in a direction perpendicular to the side surface 20s of the cell 20.
  • the outer surface of each of the guided portions 141a, 141b, 141c abuts the guide portions 14g1, 14g2, 14g3 in a direction parallel to the side surface 20s of the cell 20, so that the movable support portion 140 relative to the support member 14 in the same direction. Movement is restricted.
  • the outer surfaces of the guided portions 141a, 141b, 141c slide in the direction perpendicular to the side surface 20s of the cell 20 with respect to the guide portions 14g1, 14g2, 14g3, so that the movable support portion 140 for the support member 14 in the same direction. Is guided to move.
  • Locking portions 141s1 and 141s2 having a shape that is folded back outward are provided at the tips of the guided portions 141a and 141b, respectively, and engage with slits 14s1 and 14s2 provided in the guide portions 14g1 and 14g2. is doing.
  • the slits 14s1 and 14s2 extend in a direction perpendicular to the side surface 20s of the cell 20, and the relative position of the movable support portion 140 with respect to the support member 14 when the locking portions 141s1 and 141s2 are engaged with the lower end edges thereof is movable. It is the movable limit position in the direction in which the support portion 140 is separated from the support member 14.
  • the side surfaces of the slits 141s1 and 14s2 guide the locking portions 141s1 and 141s2 in a direction perpendicular to the side surface 20s of the cell 20, and regulate the movement of the locking portions 141s1 and 141s2 in the direction orthogonal to the same direction.
  • the direction in which the side surfaces of the slits 141s1 and 14s2 regulate the movement of the locking portions 141s1 and 141s2 is orthogonal to the direction in which the guide portions 14g1 and 14g2 regulate the movement of the guided portions 141a and 141b.
  • the guide portion 14g3 has a groove shape extending in a direction perpendicular to the side surface 20s of the cell 20, and restricts movement of the guided portion 141c in a direction orthogonal to the above direction at the bottom surface and the side surface of the groove. ing. Due to these restricting configurations, the movable support portion 140 is configured to be movable with respect to the support member 14 only in the direction perpendicular to the side surface 20s of the cell 20.
  • the mounting portion of the thermistor 13 in the FPC 10 is attached to a surface 142 of the movable support portion 140 facing the side surface 20s of the cell 20 via a foam tape 42 made of a foam material.
  • a metal plate 40 having good heat conductivity such as aluminum is attached on the surface of the FPC 10 opposite to the mounting surface of the thermistor 13.
  • the thermistor 13 detects the temperature of the cell 20 through the metal plate 40 by bringing the metal plate 40 into contact with the side surface 20s of the cell 20 serving as a temperature measuring unit as a contact member.
  • the facing surface 142 of the movable support portion 140 functions as a pressing surface that presses the metal plate 40 against the side surface 20s of the cell 20.
  • the foam tape 42 is provided with a thickness that enhances the followability of the movable support 140 to the side surface 20s of the cell 20.
  • the surface of the foam tape 42 is conformally coated to protect the thermistor 13.
  • a protrusion projecting portion extending in a direction (direction perpendicular to the side surface 20s) opposite to the direction in which the facing surface 142 faces the side surface 20s of the cell 20.
  • the projecting portion 143 has a tip end inserted through an opening 14h provided in the support member 14, and is configured such that the amount of protrusion from the opening 14h is changed by the movement of the movable support portion 140 with respect to the support member 14.
  • the protrusion 143 also has a function of guiding the movement of the movable member 140 with respect to the support member 14 by engaging with the opening 14h that is inserted.
  • a coil spring 41 is attached between the movable support portion 140 and the support member 14 so as to surround the protrusion 143, and in the direction of separating the support member 14 and the movable support portion 140 from each other.
  • a spring force (biasing force) that acts is applied.
  • the movable support portion 140 is applied to the support member 14 by the spring force of the coil spring 41 or its own weight.
  • the locking portions 141s1 and 141s2 are maintained at positions where they are locked to the lower end edges of the slits 14s1 and 14s2 (FIG. 4A). At this relative position, the amount of protrusion of the protrusion 143 from the opening 14h is the smallest.
  • the reaction force from the side surface 20s resists the spring force of the coil spring 41. Acts in the direction.
  • the contact member 40 is further pressed against the side surface 20s of the cell 20, that is, when a force larger than the spring force of the coil spring 41 is further applied, the movable support portion 140 is pressed against the support member 14 so as to compress the coil spring 41. It moves (FIG. 4(B)). This movement increases the amount of protrusion of the protrusion 143 from the opening 14h.
  • the state in which the support member 14 is properly attached to the battery 2 means that the contact member 40 and the cell 20 are in proper contact with each other, that is, the contact member so that the thermistor 13 can accurately detect the temperature. 40 and the cell 20 are in contact with each other. For example, it can be determined whether or not the contact member 40 and the side surface 20s of the cell 20 are in contact with each other at a predetermined contact pressure necessary for accurate temperature detection.
  • the amount of protrusion of the protrusion 143 from the opening 14h after the mounting of the support member 14 to the battery 2 is significantly increased from the amount of protrusion before mounting.
  • the contact state between the contact member 40 and the cell 20 can be grasped without directly confirming it visually, so that the cycle time of the assembly process of the battery monitoring device can be shortened. It becomes possible.
  • the coil spring 41 urges the movable support portion 140 to move with respect to the support member 14 in a direction in which the protrusion amount of the protrusion 143 from the opening 14h becomes smaller.
  • the protrusion amount of the protrusion 143 from the opening 14h is reduced. Therefore, even after the support member 14 is removed from the battery 2, the protrusion amount of the protrusion 143 from the opening 14h does not remain large.
  • the coil spring 41 is not necessarily required and may be omitted.
  • the location and the number of the temperature detection units are appropriately determined depending on the device configuration, since various locations may be detected depending on the longitudinal length of the unit 1 (the number of cells 20 arranged). Just set it.
  • the configuration of the guide mechanism for the support member 14 of the movable support portion 140 shown in the present embodiment is merely an example, and various conventionally known guide configurations may be appropriately adopted.
  • the protrusion 143 of the movable support portion 140 has a columnar configuration, but the configuration is not limited to this, and a prism or various other shapes can be appropriately adopted.
  • the protrusion 143 may be marked or color-coded so that the change in the protrusion amount (exposure amount) can be easily visually recognized.
  • the protrusion 143 is configured as a part of the movable support portion 140, but is configured as an exposed member (projection member) that is separate from the movable member including the pressing surface 142 and the guided portion 141. May be. If a drive link mechanism that moves the exposed member in conjunction with the movement of the movable member including the pressing surface 142 and the guided portion 141 is provided and the arrangement of the exposed member can be arbitrarily set, the design is free. It is possible to increase the degree.
  • the protrusion 143 is configured as a part of the movable support 140, the device configuration can be made simple, which is advantageous for downsizing and weight reduction.
  • the coil spring 41 is used as the biasing member, but other biasing members such as a torsion spring may be used.
  • the attachment structure of the biasing member between the support member 14 and the movable support portion 140 may also be appropriately changed according to the configuration of the biasing member.
  • the mounting state of the support member 14 to the battery 2 is configured to be visually recognizable by the protrusion amount of the protrusion 143 from the surface of the support member 14, but the configuration is not limited to such a configuration.
  • a drive mechanism is provided such that the protrusion 143 moves in the direction along the surface of the support member 14 in association with the movement of the movable support portion 140, and the protrusion 143 is moved from a window provided on the surface of the support member 14.
  • the visible length may be changed as the exposure amount. That is, it is possible to visually check the mounting state of the support member 14 in a form in which the projection 143 does not project from the surface of the support member 14 by changing the exposed length that the projection 143 shows from the window on the surface of the support member 14. can do.
  • the temperature detection unit is illustrated as the configuration that needs to be placed in contact with the battery in the battery monitoring unit, but the configuration is not limited to this.
  • the movable support structure similar to that of the present embodiment can be applied to various sensors other than the temperature sensor and a portion where it is necessary to make an electrical contact.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

Provided is a battery-monitoring unit with which it is possible to easily confirm a state of attachment to a battery.　A battery-monitoring unit 1 for monitoring the state of a battery 2, wherein the battery-monitoring unit 1 is provided with: a support member 14 attached to the battery 2; a contact member 40 arranged on the surface of the support member 14 that is attached to the battery 2, the contact member 40 coming in contact with a contacted part 20s on the battery 2; a movable member 140 that supports the contact member 40, the movable member 140 being supported by the support member 14 so as to be capable of moving relative to the support member 14; and an exposure member 143 having an exposure part that exposes the surface of the support member 14 on the opposite side from the attachment surface, the exposure member 143 being configured so that when the movable member 140 moves relative to the support member 14 due to the contact member 40 receiving a force from the contacted part 20s, the amount of exposure on the surface of the exposure part on the opposite side increases.

Description

バッテリ監視ユニットBattery monitoring unit
　本発明は、バッテリ監視ユニットの取り付け構造に関するものである。 The present invention relates to a battery monitoring unit mounting structure.
　電気自動車などに搭載されるバッテリには、バッテリの電圧などを監視するためのバッテリ監視ユニットが取り付けられる（特許文献１、２）。バッテリ監視ユニットは、バッテリの各電極に接触させる接点部や、バッテリの測温部に接触させる温度検知部などの各種接触部を備えている。これら接触部がバッテリにおけるそれぞれの所望部位に確実に接触するように、バッテリ監視ユニットをバッテリに取り付ける必要がある。ここで、ユニットの構成によっては、バッテリに取り付けられた状態において各種接触部がユニットの裏に隠れて外から見えないため、目視での接触状態の確認が困難になる場合がある。 A battery monitoring unit for monitoring the voltage of the battery is attached to the battery mounted on an electric vehicle or the like (Patent Documents 1 and 2). The battery monitoring unit includes various contact portions such as a contact portion that contacts each electrode of the battery and a temperature detection portion that contacts the temperature measuring portion of the battery. The battery monitoring unit must be attached to the battery to ensure that these contacts make contact with their respective desired sites on the battery. Here, depending on the configuration of the unit, various contact portions are hidden behind the unit and cannot be seen from the outside in the state where the unit is attached to the battery, and thus it may be difficult to visually confirm the contact state.
特開２０１３－９７８９４号公報JP, 2013-97894, A 特開２０１６－４６１１号公報JP, 2016-4611, A
　本発明は上記の従来技術の課題を解決するためになされたもので、その目的とするところは、バッテリに対する取付状態を容易に確認することができるバッテリ監視ユニットを提供することにある。 The present invention has been made to solve the above-mentioned problems of the conventional technology, and an object of the present invention is to provide a battery monitoring unit capable of easily confirming a mounting state to a battery.
　上記目的を達成するために、本発明におけるバッテリ監視ユニットは、
　バッテリの状態を監視するバッテリ監視ユニットであって、
　バッテリに取り付けられる支持部材と、
　前記支持部材における前記バッテリとの取付面に配置され、前記バッテリにおける所定の被接触部と接触する接触部材と、
　前記接触部材を支持し、前記支持部材に対して移動可能に前記支持部材に支持された可動部材と、
　前記支持部材における前記取付面とは反対側の面に露出する露出部を有する露出部材であって、前記接触部材が前記被接触部から力を受けることで前記可動部材が前記支持部材に対して移動すると、前記露出部の前記反対側の面における露出量が大きくなるように構成された露出部材と、
を備えることを特徴とする。 In order to achieve the above object, the battery monitoring unit in the present invention comprises:
A battery monitoring unit for monitoring the state of the battery,
A support member attached to the battery,
A contact member arranged on the mounting surface of the support member with the battery, and in contact with a predetermined contacted portion of the battery;
A movable member that supports the contact member and is movably supported by the support member with respect to the support member;
An exposed member having an exposed portion exposed on a surface of the support member opposite to the mounting surface, wherein the movable member receives the force from the contacted portion so that the movable member moves with respect to the support member. When moved, an exposure member configured to increase the amount of exposure on the opposite surface of the exposed portion,
It is characterized by including.
　本発明によれば、バッテリに対するバッテリ監視ユニットの取付状態を容易に確認することができる。すなわち、バッテリ監視ユニットがバッテリに適正に取り付けられた場合には、接触部材が被接触部と接触し、被接触部から力を受けることになる。したがって、接触部材が被接触部から受ける力によって可動部材が支持部材に対して移動することになり、露出部材の露出部の露出量が大きくなる。これにより、支持部材におけるバッテリとの取付面に配置された接触部材の被接触部に対する接触状態を、該取付面とは反対側の面における露出部材の露出部の露出量によって把握することが可能となる。すなわち、バッテリ監視ユニットがバッテリに適正に取り付けられたか否かを、取付面における接触部材の被接触部に対する接触状態を直接確認することなく、確認することができる。 According to the present invention, it is possible to easily confirm the attachment state of the battery monitoring unit to the battery. That is, when the battery monitoring unit is properly attached to the battery, the contact member comes into contact with the contacted portion and receives a force from the contacted portion. Therefore, the movable member moves with respect to the support member due to the force that the contact member receives from the contacted portion, and the exposed amount of the exposed portion of the exposed member increases. Thereby, the contact state of the contact member arranged on the mounting surface of the support member with the battery with respect to the contacted portion can be grasped by the exposure amount of the exposed portion of the exposed member on the surface opposite to the mounting surface. Becomes That is, whether or not the battery monitoring unit is properly attached to the battery can be confirmed without directly confirming the contact state of the contact member with the contacted portion on the attachment surface.
　バッテリにおける測温部としての前記被接触部の温度を、前記接触部材を介して検知する温度検知素子をさらに備えてよい。 A temperature detecting element for detecting the temperature of the contacted portion as a temperature measuring portion in the battery via the contact member may be further provided.
　バッテリの温度を正確に検知するためには、バッテリの測温部に対する接触部材の接触状態が適正であることが必須となる温度検知素子を備えた構成において、本発明のバッテリ監視ユニットの構成は非常に好適である。 In order to accurately detect the temperature of the battery, it is essential that the contact state of the contact member with respect to the temperature measuring unit of the battery is appropriate. Very suitable.
　前記温度検知素子が接続される温度測定用配線を備えるフレキシブルプリント配線板をさらに備え、
　前記フレキシブルプリント配線板は、前記支持部材及び前記可動部材に支持され、
　前記温度検知素子は、前記フレキシブルプリント配線板における前記可動部材に支持された領域に、実装されるとよい。 Further comprising a flexible printed wiring board having a temperature measuring wiring to which the temperature sensing element is connected,
The flexible printed wiring board is supported by the support member and the movable member,
The temperature sensing element may be mounted in a region of the flexible printed wiring board supported by the movable member.
　フレキシブルプリント配線板を備えたバッテリ監視ユニットの構成では、支持部材におけるバッテリとの取付面が、平板帯状のフレキシブルプリント配線板の裏に隠れてしまい、支持部材がバッテリに取り付けられた状態において、その反対側からは見え難くなる。そのような構成に対して、取付面における接触部材の被接触部との接触状態を直接確認することなく、バッテリ監視ユニットがバッテリに適正に取り付けられたか否かを確認することが可能な本発明の構成は、非常に好適である。 In the configuration of the battery monitoring unit including the flexible printed wiring board, the mounting surface of the supporting member with the battery is hidden behind the flat strip-shaped flexible printed wiring board, and the supporting member is attached to the battery. It becomes difficult to see from the other side. With such a configuration, it is possible to confirm whether the battery monitoring unit is properly attached to the battery without directly confirming the contact state of the contact member with the contacted portion on the attachment surface. The configuration of is very suitable.
　前記接触部材は、前記フレキシブルプリント配線板における前記温度検知素子が実装された面とは反対側の面に取り付けられた金属板であるとよい。 The contact member may be a metal plate attached to the surface of the flexible printed wiring board opposite to the surface on which the temperature detecting element is mounted.
　接触部材の具体的な構成は特段限定されるものではないが、バッテリ監視ユニットにおけるバッテリの温度検知部に本発明の構成を適用する場合には、接触部材として、熱伝導性の良好な金属板が好適である。 Although the specific configuration of the contact member is not particularly limited, when the configuration of the present invention is applied to the temperature detecting portion of the battery in the battery monitoring unit, the contact member is a metal plate having good thermal conductivity. Is preferred.
　前記可動部材を前記支持部材に対して前記露出部の前記露出量が小さくなる方向に移動させるように、前記可動部材を付勢する付勢部材をさらに備えるとよい。また、前記付勢部材が前記可動部材を付勢する方向は、前記接触部材を前記被接触部に押し付ける方向であるとよい。 It is preferable that a biasing member that biases the movable member is further provided so as to move the movable member with respect to the support member in a direction in which the exposed amount of the exposed portion decreases. The direction in which the biasing member biases the movable member may be a direction in which the contact member is pressed against the contacted portion.
　かかる付勢部材を備えることで、接触部材が被接触部と接触していない状態においては、露出部材の露出部の露出量が小さくなる。したがって、支持部材がバッテリから取り外された後も、露出部材の露出部の露出量が大きくなった状態のままになってしまうことがない。仮に、支持部材がバッテリから取り外された後も露出部材の露出部の露出量が大きくなった状態のままで維持されてしまう場合、その後の支持部材のバッテリへの取り付けにおいて、支持部材がバッテリに適正に取り付けられたのか否かの判断ができなくなってしまうことが懸念される。本発明によれば、そのような事態を回避することができる。また、付勢部材の付勢力が作用する方向が、接触部材を被接触部に押し付ける方向となることで、両者の接触状態を安定させることができる。 By providing such a biasing member, the exposed amount of the exposed portion of the exposed member is reduced when the contact member is not in contact with the contacted portion. Therefore, even after the supporting member is removed from the battery, the exposed amount of the exposed portion of the exposing member does not remain large. If the exposed amount of the exposed portion of the exposed member remains large even after the supporting member is removed from the battery, the supporting member is not attached to the battery during the subsequent attachment of the supporting member to the battery. There is a concern that it will not be possible to determine whether or not it has been installed properly. According to the present invention, such a situation can be avoided. Moreover, since the direction in which the biasing force of the biasing member acts is the direction in which the contact member is pressed against the contacted portion, the contact state between the two can be stabilized.
　前記露出部材は、前記露出部として前記反対側の面から突出する突出部を有し、前記可動部材の前記支持部材に対する移動によって前記突出部の前記反対側の面からの突出量が変化するとよい。 The exposed member may include a protruding portion that protrudes from the opposite surface as the exposed portion, and the amount of protrusion of the protruding portion from the opposite surface may change due to movement of the movable member with respect to the support member. ..
　露出部材の露出部が、上記反対側の面から突出する構成とし、かつその突出量が可動部材の支持部材に対する移動によって変化する構成とすれば、露出部材の露出状態を取付面とは反対側における種々の方向から視認し易くなる。 If the exposed portion of the exposed member is configured to project from the surface on the opposite side, and the amount of projection changes according to the movement of the movable member with respect to the support member, the exposed state of the exposed member is opposite to the mounting surface. It becomes easy to visually recognize from various directions in.
　前記露出部材は、前記可動部材の前記支持部材に対する移動に合せて前記支持部材に対して移動可能に設けられてもよいし、あるいは、前記可動部材と一体の部材であってもよい。 The exposed member may be provided so as to be movable with respect to the support member in accordance with the movement of the movable member with respect to the support member, or may be a member integrated with the movable member.
　すなわち、露出部材は、可動部材とは別体としてもよいし、可動部材と一体としてもよい。別体の場合には、露出部材の設置位置と可動部材の設置位置とを任意に設定することが可能となり、装置構成の設計の自由度を高めることができる。また、一体の場合には、装置構成としてシンプルな構成とすることができ、小型化、軽量化において好適である。 That is, the exposed member may be separate from the movable member or may be integrated with the movable member. In the case of a separate body, the installation position of the exposed member and the installation position of the movable member can be arbitrarily set, and the degree of freedom in designing the device configuration can be increased. Further, in the case of being integrated, the device can have a simple structure, which is suitable for size reduction and weight reduction.
　以上説明したように、本発明により、バッテリに対する取付状態を容易に確認することができるバッテリ監視ユニットを提供することができる。 As described above, according to the present invention, it is possible to provide a battery monitoring unit capable of easily confirming the attachment state to the battery.
本発明の実施例におけるバッテリの平面図、及び本発明の実施例に係るバッテリ監視ユニットの背面図The top view of the battery in the Example of this invention, and the rear view of the battery monitoring unit which concerns on the Example of this invention. 本発明の実施例におけるバッテリの側面図The side view of the battery in the Example of this invention. 本発明の実施例に係るバッテリ監視ユニットにおけるサーミスタ支持機構の模式的断面図Schematic sectional view of the thermistor support mechanism in the battery monitoring unit according to the embodiment of the present invention. 本発明の実施例に係るバッテリ監視ユニットにおけるサーミスタ支持機構の模式的断面図Schematic sectional view of the thermistor support mechanism in the battery monitoring unit according to the embodiment of the present invention.
　以下に図面を参照して、この発明を実施するための形態を、実施例に基づいて例示的に詳しく説明する。ただし、この実施例に記載されている構成部品の寸法、材質、形状、その相対配置などは、特に特定的な記載がない限りは、この発明の範囲をそれらのみに限定する趣旨のものではない。 With reference to the drawings, modes for carrying out the present invention will be exemplarily described in detail below based on embodiments. However, the dimensions, materials, shapes, relative positions, etc. of the constituent parts described in this embodiment are not intended to limit the scope of the present invention to them unless otherwise specified. ..
　（実施例）
　図１（Ａ）～図４（Ｃ）を参照して、本発明の実施例に係るバッテリ監視ユニットについて説明する。
　図１（Ａ）は、本発明の実施例におけるバッテリの概略構成を示す平面図（上方から見た図）である。
　図１（Ｂ）は、本発明の実施例に係るバッテリ監視ユニットの概略構成を示す背面図（バッテリ監視ユニットにおけるバッテリとの取付面側を示す図）である。
　図２（Ａ）及び図２（Ｂ）はそれぞれ、本発明の実施例におけるバッテリの概略構成を示す側面図であり、図２（Ａ）は、本実施例に係るバッテリ監視ユニットが取り外された状態、図２（Ｂ）は、本実施例に係るバッテリ監視ユニットが取り付けられた状態、をそれぞれ示している。
　図３は、本発明の実施例に係るバッテリ監視ユニットにおけるサーミスタ支持機構の構成を示す模式的断面図であり、図１のＡ矢視断面に対応する図である。
　図４（Ａ）～図４（Ｃ）はそれぞれ、本発明の実施例に係るバッテリ監視ユニットにおけるサーミスタ支持機構の構成を示す模式的断面図であり、図３のＢ矢視断面に対応する図である。
　図４（Ａ）は、接触部材がセルに接触する前の状態を示し、
　図４（Ｂ）は、接触部材がバッテリの被接触部に接触したがバッテリ監視ユニットがバッテリに完全に装着されていない状態を示し、
　図４（Ｃ）は、バッテリ監視ユニットがバッテリに完全に装着された状態を示している。 (Example)
A battery monitoring unit according to an embodiment of the present invention will be described with reference to FIGS. 1(A) to 4(C).
FIG. 1A is a plan view (viewed from above) showing a schematic configuration of a battery according to an embodiment of the present invention.
FIG. 1B is a rear view showing a schematic configuration of a battery monitoring unit according to an embodiment of the present invention (a diagram showing a mounting surface side of a battery in the battery monitoring unit).
2(A) and 2(B) are side views showing a schematic configuration of the battery in the embodiment of the present invention, and FIG. 2(A) shows the battery monitoring unit according to the present embodiment removed. The state, FIG. 2B, shows the state in which the battery monitoring unit according to the present embodiment is attached.
FIG. 3 is a schematic cross-sectional view showing the configuration of the thermistor support mechanism in the battery monitoring unit according to the embodiment of the present invention, and is a view corresponding to the cross section taken along arrow A in FIG.
4(A) to 4(C) are schematic cross-sectional views showing the configuration of the thermistor support mechanism in the battery monitoring unit according to the embodiment of the present invention, and are views corresponding to the cross-section taken along arrow B in FIG. Is.
FIG. 4A shows a state before the contact member contacts the cell,
FIG. 4B shows a state in which the contact member contacts the contacted portion of the battery, but the battery monitoring unit is not completely attached to the battery,
FIG. 4C shows a state in which the battery monitoring unit is completely attached to the battery.
　＜バッテリ監視ユニット＞
　図１（Ａ）～図２（Ｂ）を主に参照して、本発明の実施例に係るバッテリ監視ユニットの概略構成について説明する。 <Battery monitoring unit>
A schematic configuration of a battery monitoring unit according to an embodiment of the present invention will be described mainly with reference to FIGS. 1(A) and 2(B).
　本発明の実施例に係るバッテリ監視ユニット１（以下、ユニット１）は、バッテリ２の電圧や温度などの各種状態を監視すべく、バッテリ２に取り付けられるユニットである。バッテリ２は、例えば、電気自動車（ＥＶ）やハイブリッド自動車（ＨＶ）などの車両における動力源として用いられるものであり、複数のセル２０により構成される。これら複数のセルは、正極２１と陰極２２とが隣り合うように配列されている。また、これら複数のセル２０は、隣り合う正極２１と陰極２２がバスバ１２を介して電気的に接続されることで直列に接続される。ユニット１が取得したバッテリ２の電圧や温度などの情報は、電圧や温度を監視する監視部３０などを備える制御部３へ送られる。これらユニット１と制御部３により、上述した車両におけるバッテリ監視装置が構成される。 The battery monitoring unit 1 (hereinafter, unit 1) according to the embodiment of the present invention is a unit attached to the battery 2 in order to monitor various states such as the voltage and temperature of the battery 2. The battery 2 is used as a power source in a vehicle such as an electric vehicle (EV) or a hybrid vehicle (HV), and includes a plurality of cells 20. The plurality of cells are arranged so that the cathode 21 and the cathode 22 are adjacent to each other. The plurality of cells 20 are connected in series by the adjacent positive electrode 21 and negative electrode 22 being electrically connected via the bus bar 12. The information such as the voltage and temperature of the battery 2 acquired by the unit 1 is sent to the control unit 3 including the monitoring unit 30 that monitors the voltage and temperature. The unit 1 and the control unit 3 constitute the battery monitoring device in the vehicle described above.
　ユニット１は、フレキシブルプリント配線板（以下、ＦＰＣ）１０と、複数のバスバ１１、１２と、複数のサーミスタ１３と、それらを支持する支持部材１４と、ＦＰＣ１０の端部に取り付けられたコネクタ１５と、を備える。バスバ１１は、直列接続されるセル２０における両端となる正極２１と負極２２にそれぞれ接続される。また、バスバ１２は、隣り合う正極２１と負極２２を電気的に接続するために用いられる。 The unit 1 includes a flexible printed wiring board (hereinafter, referred to as FPC) 10, a plurality of bus bars 11 and 12, a plurality of thermistors 13, a supporting member 14 that supports them, and a connector 15 attached to an end portion of the FPC 10. , Is provided. The bus bar 11 is connected to a positive electrode 21 and a negative electrode 22, which are both ends of the cells 20 connected in series. In addition, the bus bar 12 is used to electrically connect the positive electrode 21 and the negative electrode 22 that are adjacent to each other.
　支持部材１４は、キャリアとも称され、セル２０の配列方向に延びる長尺の樹脂成形部材であり、ユニット１の枠体としてユニット１の各種構成を支持し、各セル２０の電極２１、２２を覆うようにバッテリ２に取り付けられる。バッテリ２と支持部材１４には、不図示の係止部や嵌合部が設けられており、それらを互いに係合させ、ボルト等で締結することで、バッテリ２とユニット１が一体化される。支持部材１４は、バッテリ２への取り付け時の取り回し性を高める観点等から、長手方向に複数のユニットに分割して全体的に撓ませることが可能に構成される場合がある。 The support member 14 is also called a carrier and is a long resin molding member extending in the arrangement direction of the cells 20. The support member 14 supports various configurations of the unit 1 as a frame body of the unit 1 and supports the electrodes 21 and 22 of each cell 20. It is attached to the battery 2 so as to cover it. The battery 2 and the support member 14 are provided with locking portions and fitting portions (not shown), and the battery 2 and the unit 1 are integrated by engaging them with each other and fastening them with bolts or the like. .. The support member 14 may be divided into a plurality of units in the longitudinal direction so that the support member 14 can be flexed as a whole, from the viewpoint of improving maneuverability at the time of attachment to the battery 2.
　支持部材１４は、長手方向と直交する方向における両側に、長手方向に沿ってバスバ１１、１２がセル２０の配列間隔に合せて所定間隔を空けて配置され、それらの間に平板帯状のＦＰＣ１０が略長手方向に延びた構成となっている。そのため、支持部材１４は、一つのセル２０における正極２１と陰極２２の間隔よりも広い幅を有し、セル２０の配列方向に沿って延びる、長尺の略板状の外形に構成される。したがって、支持部材１４におけるバッテリ２との取付面（図１（Ｂ））は、支持部材１４がバッテリ２に取り付けられた状態において、外側からは見えない構成となる。また、セル２０の配列数が増えるほど支持部材１４はセル２０の配列方向にさらに長尺の構成となる。 The support member 14 has bus bars 11 and 12 arranged on both sides in a direction orthogonal to the longitudinal direction at predetermined intervals along the longitudinal direction in accordance with the arrangement interval of the cells 20, and a flat plate-shaped FPC 10 is provided therebetween. It is configured to extend in a substantially longitudinal direction. Therefore, the support member 14 has a wider width than the distance between the positive electrode 21 and the negative electrode 22 in one cell 20, and is configured in a long, substantially plate-shaped outer shape that extends along the arrangement direction of the cells 20. Therefore, the attachment surface of the support member 14 with the battery 2 (FIG. 1B) is invisible from the outside when the support member 14 is attached to the battery 2. Further, as the number of cells 20 arranged increases, the support member 14 becomes longer in the arrangement direction of the cells 20.
　ＦＰＣ１０は、銅箔などにより構成される複数本の配線が、接着剤層を介して、柔軟性を有するベースフィルムとカバーフィルムとで挟まれた構成を有しており、電圧監視用配線（不図示）と温度監視用配線１０３と、を備えている。電圧監視用配線は、一端がバスバ１１、１２に接続され、他端がコネクタ１５に接続されている。温度監視用配線１０３は、一端がサーミスタ１３に接続され、他端がコネクタ１５に接続されている。コネクタ１５は、制御部３の監視部３０に電気的に接続されている。 The FPC 10 has a structure in which a plurality of wirings made of copper foil or the like are sandwiched between a flexible base film and a cover film with an adhesive layer interposed therebetween. (Illustration) and the temperature monitoring wiring 103. The voltage monitoring wiring has one end connected to the bus bars 11 and 12 and the other end connected to the connector 15. The temperature monitoring wiring 103 has one end connected to the thermistor 13 and the other end connected to the connector 15. The connector 15 is electrically connected to the monitoring unit 30 of the control unit 3.
　温度検知素子としてのサーミスタ１３は、セル２０の配列方向に長尺のバッテリ２の温度を長手方向の複数箇所で検知すべく、長手方向に間隔を空けて複数設けられている。具体的には、本実施例では、３つのサーミスタ１３ａ、１３ｂ、１３ｃがそれぞれ長手方向の両端と中央の３箇所に配置され、各所でバッテリ２の温度を測定するように構成されている。 A plurality of thermistors 13 as temperature detecting elements are provided at intervals in the longitudinal direction so as to detect the temperature of the long batteries 2 in the array direction of the cells 20 at a plurality of locations in the longitudinal direction. Specifically, in the present embodiment, three thermistors 13a, 13b, 13c are arranged at both ends and the center in the longitudinal direction, and the temperature of the battery 2 is measured at each place.
　サーミスタ１３ａは、バッテリ２の長手方向（セル２０の配列方向）一方側の一番端に配置されたセル２０ａの側面（上面）２０ｓ（図３、図４参照）をバッテリ２の端部測温部として配置される。サーミスタ１３ｂは、バッテリ２の長手方向他方側の一番端に配置されたセル２０ｂの側面２０ｓをバッテリ２の端部測温部として配置される。サーミスタ１３ｃは、バッテリ２の長手方向中央部に配置されたセル２０ｃの側面２０ｓをバッテリ２の中央測温部として配置される。 The thermistor 13a measures the side surface (upper surface) 20s (see FIGS. 3 and 4) of the cell 20a arranged at the one end on the one side in the longitudinal direction of the battery 2 (arrangement direction of the cells 20) (see FIGS. 3 and 4) to measure the temperature at the end of the battery 2. It is arranged as a part. In the thermistor 13b, the side surface 20s of the cell 20b arranged at the farthest end on the other side in the longitudinal direction of the battery 2 is arranged as an end temperature measuring unit of the battery 2. In the thermistor 13c, the side surface 20s of the cell 20c arranged at the center of the battery 2 in the longitudinal direction is arranged as a central temperature measuring portion of the battery 2.
　支持部材１４のバッテリ２との取付面には、接触部材４０ａ、４０ｂ、４０ｃが露出して設けられている。接触部材４０ａ、４０ｂ、４０ｃはそれぞれ、支持部材１４がバッテリ２に取り付けられた状態において、セル２０ａ、２０ｂ、２０ｃの側面２０ｓに接触するように構成されている。サーミスタ１３ａ、１３ｂ、１３ｃはそれぞれ、接触部材４０ａ、４０ｂ、４０ｃを介して、セル２０ａ、２０ｂ、２０ｃの温度を検知するように構成されている。すなわち、サーミスタ１３ａ、１３ｂ、１３ｃは、接触部材４０ａ、４０ｂ、４０ｃとともにユニット１における温度検知部を構成している。 Contact members 40a, 40b, 40c are provided so as to be exposed on the surface of the support member 14 that is attached to the battery 2. The contact members 40a, 40b, 40c are configured to contact the side surfaces 20s of the cells 20a, 20b, 20c when the support member 14 is attached to the battery 2. The thermistors 13a, 13b, 13c are configured to detect the temperatures of the cells 20a, 20b, 20c via the contact members 40a, 40b, 40c, respectively. That is, the thermistors 13a, 13b, and 13c, together with the contact members 40a, 40b, and 40c, form a temperature detection unit in the unit 1.
　＜本実施例の特徴的構成＞
　本実施例に係るユニット１は、配線にＦＰＣ１０を用いており、上述したように、ユニット１においてバッテリ２と接触させなければならない各種接触部が、平板帯状のＦＰＣ１０の裏に隠れてしまう。そのため、かかる接触部がバッテリ２における所望の被接触部と確実に接触しているか否か、目視で確認することが難しい。特に、セル２０の配列方向に長尺に構成され、かつ樹脂等の可撓性を有する材料で構成された支持部材１４は、バッテリ２に対して部分的に浮いた状態で取り付けられてしまう場合があり、長手長さが長くなるほど顕著となる。そのような取付状態が形成されると、接触部の接触状態が不十分となってしまう可能性がある。そこで、本実施例に係るユニット１は、支持部材１４においてバッテリ２の被接触部に接触させる接触部を支持する構成として、次のような温度検知部の支持機構を備えている。 <Characteristic configuration of the present embodiment>
In the unit 1 according to the present embodiment, the FPC 10 is used for wiring, and as described above, various contact portions that must come into contact with the battery 2 in the unit 1 are hidden behind the flat plate-shaped FPC 10. Therefore, it is difficult to visually confirm whether or not the contact portion surely contacts the desired contacted portion of the battery 2. In particular, when the support member 14 that is long in the arrangement direction of the cells 20 and that is made of a flexible material such as resin is attached to the battery 2 in a partially floating state. And becomes more remarkable as the length becomes longer. When such an attached state is formed, the contact state of the contact portion may become insufficient. Therefore, the unit 1 according to the present embodiment is provided with the following support mechanism of the temperature detection unit as a configuration for supporting the contact portion of the support member 14 that contacts the contacted portion of the battery 2.
　図３～図４（Ｃ）を主に参照して、本実施例に係るユニット１における温度検知部の支持機構について説明する。
　本実施例に係るユニット１の支持部材１４は、温度検知素子としてのサーミスタ１３を含む温度検知部を支持する機構として、支持部材１４（本体）に対して移動可能な可動部材としての可動支持部１４０が設けられている。支持部材１４において、３つのサーミスタ１３ａ、１３ｂ、１３ｃが配置されている３箇所は、それぞれ同じ支持機構で構成されている。 The support mechanism of the temperature detection unit in the unit 1 according to the present embodiment will be described mainly with reference to FIGS. 3 to 4C.
The supporting member 14 of the unit 1 according to the present embodiment is a movable supporting portion as a movable member that is movable with respect to the supporting member 14 (main body) as a mechanism that supports the temperature detecting portion including the thermistor 13 as a temperature detecting element. 140 is provided. In the support member 14, the three positions where the three thermistors 13a, 13b, and 13c are arranged have the same support mechanism.
　可動支持部１４０は、支持部材１４に設けられたガイド部１４ｇ１、１４ｇ２、１４ｇ３にガイドされる被ガイド部１４１ａ、１４１ｂ、１４１ｃを有している。可動支持部１４０は、接触部材４０がセル２０から力を受けると、被ガイド部１４１ａ、１４１ｂ、１４１ｃがガイド部１４ｇ１、１４ｇ２、１４ｇ３にガイドされることで、支持部材１４に対してセル２０の測温部（被接触部）としての側面（上面）２０ｓに垂直な方向に移動する。 The movable support portion 140 has guided portions 141a, 141b, 141c guided by the guide portions 14g1, 14g2, 14g3 provided on the support member 14. When the contact member 40 receives a force from the cell 20, the movable support portion 140 guides the guided portions 141a, 141b, and 141c to the guide portions 14g1, 14g2, and 14g3, so that the support member 14 moves the cell 20 relative to the support member 14. It moves in a direction perpendicular to the side surface (upper surface) 20s as the temperature measuring portion (contacted portion).
　被ガイド部１４１ａ、１４１ｂ、１４１ｃは、それぞれ可動支持部１４０においてセル２０の側面２０ｓに垂直な方向に延びた部位である。被ガイド部１４１ａ、１４１ｂ、１４１ｃのそれぞれの外面がガイド部１４ｇ１、１４ｇ２、１４ｇ３に対してセル２０の側面２０ｓと平行な方向に当接することで、同方向における支持部材１４に対する可動支持部１４０の移動が規制される。また、被ガイド部１４１ａ、１４１ｂ、１４１ｃの外面がガイド部１４ｇ１、１４ｇ２、１４ｇ３に対してセル２０の側面２０ｓに垂直な方向に摺動することで、同方向における支持部材１４に対する可動支持部１４０の移動がガイドされる。 The guided portions 141a, 141b, 141c are portions of the movable supporting portion 140 that extend in a direction perpendicular to the side surface 20s of the cell 20. The outer surface of each of the guided portions 141a, 141b, 141c abuts the guide portions 14g1, 14g2, 14g3 in a direction parallel to the side surface 20s of the cell 20, so that the movable support portion 140 relative to the support member 14 in the same direction. Movement is restricted. The outer surfaces of the guided portions 141a, 141b, 141c slide in the direction perpendicular to the side surface 20s of the cell 20 with respect to the guide portions 14g1, 14g2, 14g3, so that the movable support portion 140 for the support member 14 in the same direction. Is guided to move.
　被ガイド部１４１ａ、１４１ｂの先端には、それぞれ外向きに折り返されたような形状の係止部１４１ｓ１、１４１ｓ２が設けられており、ガイド部１４ｇ１、１４ｇ２に設けられたスリット１４ｓ１、１４ｓ２に係合している。スリット１４ｓ１、１４ｓ２は、セル２０の側面２０ｓに垂直な方向に延びており、その下端縁に係止部１４１ｓ１、１４１ｓ２が係合したときの支持部材１４に対する可動支持部１４０の相対位置が、可動支持部１４０の支持部材１４に対する離間方向における可動限界位置となる。 Locking portions 141s1 and 141s2 having a shape that is folded back outward are provided at the tips of the guided portions 141a and 141b, respectively, and engage with slits 14s1 and 14s2 provided in the guide portions 14g1 and 14g2. is doing. The slits 14s1 and 14s2 extend in a direction perpendicular to the side surface 20s of the cell 20, and the relative position of the movable support portion 140 with respect to the support member 14 when the locking portions 141s1 and 141s2 are engaged with the lower end edges thereof is movable. It is the movable limit position in the direction in which the support portion 140 is separated from the support member 14.
　また、スリット１４１ｓ１、１４ｓ２の側面は、係止部１４１ｓ１、１４１ｓ２をセル２０の側面２０ｓに垂直な方向にガイドするとともに、同方向と直交する方向における係止部１４１ｓ１、１４１ｓ２の移動を規制する。スリット１４１ｓ１、１４ｓ２の側面が係止部１４１ｓ１、１４１ｓ２の移動を規制する方向は、ガイド部１４ｇ１、１４ｇ２が被ガイド部１４１ａ、１４１ｂの移動を規制する方向と直交する方向となっている。また、ガイド部１４ｇ３は、セル２０の側面２０ｓに垂直な方向に延びる溝形状を有しており、溝の底面及び溝の側面で被ガイド部１４１ｃの上記方向と直交する方向の移動を規制している。これら規制構成により、可動支持部１４０は、支持部材１４に対して、セル２０の側面２０ｓに垂直な方向にのみ移動可能に構成されている。 Moreover, the side surfaces of the slits 141s1 and 14s2 guide the locking portions 141s1 and 141s2 in a direction perpendicular to the side surface 20s of the cell 20, and regulate the movement of the locking portions 141s1 and 141s2 in the direction orthogonal to the same direction. The direction in which the side surfaces of the slits 141s1 and 14s2 regulate the movement of the locking portions 141s1 and 141s2 is orthogonal to the direction in which the guide portions 14g1 and 14g2 regulate the movement of the guided portions 141a and 141b. The guide portion 14g3 has a groove shape extending in a direction perpendicular to the side surface 20s of the cell 20, and restricts movement of the guided portion 141c in a direction orthogonal to the above direction at the bottom surface and the side surface of the groove. ing. Due to these restricting configurations, the movable support portion 140 is configured to be movable with respect to the support member 14 only in the direction perpendicular to the side surface 20s of the cell 20.
　可動支持部１４０におけるセル２０の側面２０ｓとの対向面１４２には、発泡材料からなるフォームテープ４２を介して、ＦＰＣ１０におけるサーミスタ１３の実装部が取り付けられている。ＦＰＣ１０のサーミスタ１３の実装面とは反対側の面には、アルミニウム等の伝熱性の良好な金属板４０が貼り付けられている。この金属板４０を、接触部材として、セル２０の測温部としての側面２０ｓに接触させることで、サーミスタ１３は、金属板４０を介してセル２０の温度を検知する。可動支持部１４０の対向面１４２は、金属板４０をセル２０の側面２０ｓに押し付ける押圧面として機能する。フォームテープ４２は、セル２０の側面２０ｓに対する可動支持部１４０の追従性が高められるような厚みで設けられている。また、フォームテープ４２の表面には、サーミスタ１３を保護すべくコンフォーマルコーティングが施されている。 The mounting portion of the thermistor 13 in the FPC 10 is attached to a surface 142 of the movable support portion 140 facing the side surface 20s of the cell 20 via a foam tape 42 made of a foam material. On the surface of the FPC 10 opposite to the mounting surface of the thermistor 13, a metal plate 40 having good heat conductivity such as aluminum is attached. The thermistor 13 detects the temperature of the cell 20 through the metal plate 40 by bringing the metal plate 40 into contact with the side surface 20s of the cell 20 serving as a temperature measuring unit as a contact member. The facing surface 142 of the movable support portion 140 functions as a pressing surface that presses the metal plate 40 against the side surface 20s of the cell 20. The foam tape 42 is provided with a thickness that enhances the followability of the movable support 140 to the side surface 20s of the cell 20. The surface of the foam tape 42 is conformally coated to protect the thermistor 13.
　また、可動支持部１４０における対向面１４２とは反対側には、対向面１４２がセル２０の側面２０ｓと対向する方向とは逆方向（側面２０ｓに垂直な方向）に延びる突起部（突出部）１４３が設けられている。突起部１４３は、先端側が支持部材１４に設けられた開口１４ｈに挿通されており、可動支持部１４０の支持部材１４に対する移動によって、開口１４ｈからの突出量が変化するように構成されている。なお、突起部１４３も、挿通される開口１４ｈとの係合により、支持部材１４に対する可動部材１４０の移動をガイドする機能を有している。 Further, on the side opposite to the facing surface 142 of the movable support portion 140, a protrusion (projecting portion) extending in a direction (direction perpendicular to the side surface 20s) opposite to the direction in which the facing surface 142 faces the side surface 20s of the cell 20. 143 is provided. The projecting portion 143 has a tip end inserted through an opening 14h provided in the support member 14, and is configured such that the amount of protrusion from the opening 14h is changed by the movement of the movable support portion 140 with respect to the support member 14. The protrusion 143 also has a function of guiding the movement of the movable member 140 with respect to the support member 14 by engaging with the opening 14h that is inserted.
　また、可動支持部１４０と支持部材１４との間には、突起部１４３を囲むようにコイルバネ４１が取り付けられており、支持部材１４と可動支持部１４０との間に、両者を離間させる方向に作用するバネ力（付勢力）が付与される。可動支持部１４０と支持部材１４との間に、コイルバネ４１のバネ力以外の外力が何ら加わっていない状態では、可動支持部１４０は、コイルバネ４１のバネ力あるいは自重によって、支持部材１４に対して係止部１４１ｓ１、１４１ｓ２がスリット１４ｓ１、１４ｓ２の下端縁に係止する位置で維持される（図４（Ａ））。この相対位置において、突起部１４３の開口１４ｈからの突出量は最も小さくなる。 Further, a coil spring 41 is attached between the movable support portion 140 and the support member 14 so as to surround the protrusion 143, and in the direction of separating the support member 14 and the movable support portion 140 from each other. A spring force (biasing force) that acts is applied. When no external force other than the spring force of the coil spring 41 is applied between the movable support portion 140 and the support member 14, the movable support portion 140 is applied to the support member 14 by the spring force of the coil spring 41 or its own weight. The locking portions 141s1 and 141s2 are maintained at positions where they are locked to the lower end edges of the slits 14s1 and 14s2 (FIG. 4A). At this relative position, the amount of protrusion of the protrusion 143 from the opening 14h is the smallest.
　支持部材１４がバッテリ２に取り付けられる際に、接触部材４０がセル２０の側面２０ｓに接触し、側面２０ｓに対して押し付けられると、側面２０ｓからの反力が、コイルバネ４１のバネ力に抗する方向に作用する。さらに接触部材４０がセル２０の側面２０ｓに押し付けられると、すなわち、コイルバネ４１のバネ力よりも大きな力がさらに加えられると、コイルバネ４１を圧縮させるように可動支持部１４０が支持部材１４に対して移動する（図４（Ｂ））。この移動により、突起部１４３の開口１４ｈからの突出量は大きくなる。 When the contact member 40 contacts the side surface 20s of the cell 20 and is pressed against the side surface 20s when the support member 14 is attached to the battery 2, the reaction force from the side surface 20s resists the spring force of the coil spring 41. Acts in the direction. When the contact member 40 is further pressed against the side surface 20s of the cell 20, that is, when a force larger than the spring force of the coil spring 41 is further applied, the movable support portion 140 is pressed against the support member 14 so as to compress the coil spring 41. It moves (FIG. 4(B)). This movement increases the amount of protrusion of the protrusion 143 from the opening 14h.
　支持部材１４がバッテリ２に対して適正に取り付けられると（取り付けが完了すると）、可動支持部１４０と支持部材１４との間の相対移動もなくなり、このとき、突起部１４３の開口１４ｈからの突出量は最大となる（図４（Ｃ））。 When the support member 14 is properly attached to the battery 2 (when the attachment is completed), the relative movement between the movable support portion 140 and the support member 14 also disappears, and at this time, the protrusion 143 protrudes from the opening 14h. The amount is maximum (Fig. 4(C)).
　＜本実施例の優れた点＞
　本実施例によれば、突起部１４３の開口１４ｈからの突出量（露出量）を確認することで、接触部材４０とセル２０との接触状態、すなわち、支持部材１４がバッテリ２に対して適正に装着されているのか否かを知ることができる。 <Excellent points of this example>
According to the present embodiment, by checking the amount of protrusion (exposure amount) of the protrusion 143 from the opening 14h, the contact state between the contact member 40 and the cell 20, that is, the support member 14 is appropriate for the battery 2. You can know whether or not it is attached to.
　支持部材１４がバッテリ２に対して適正に装着されている状態とは、接触部材４０とセル２０とが適正に接触していること、すなわち、サーミスタ１３による温度検知を正確に行えるように接触部材４０とセル２０とが接触している状態である。例えば、接触部材４０とセル２０の側面２０ｓとが、正確な温度検知のために必要な所定の接触圧で互いに接触しているか否かで判断することができる。このような適正な接触状態が形成されると、支持部材１４のバッテリ２への装着完了後の突起部１４３の開口１４ｈからの突出量は、装着前の突出量から大きく増大することになる。 The state in which the support member 14 is properly attached to the battery 2 means that the contact member 40 and the cell 20 are in proper contact with each other, that is, the contact member so that the thermistor 13 can accurately detect the temperature. 40 and the cell 20 are in contact with each other. For example, it can be determined whether or not the contact member 40 and the side surface 20s of the cell 20 are in contact with each other at a predetermined contact pressure necessary for accurate temperature detection. When such an appropriate contact state is formed, the amount of protrusion of the protrusion 143 from the opening 14h after the mounting of the support member 14 to the battery 2 is significantly increased from the amount of protrusion before mounting.
　一方、接触部材４０とセル２０とが適正に接触していない場合には、接触部材４０に対して作用するセル２０からの反力が不十分となるため、可動支持部１４０の支持部材１４に対する相対移動のストロークが、適正な接触時よりも小さくなる。その結果、支持部材１４のバッテリ２への装着完了後の突起部１４３の開口１４ｈからの突出量は、装着完了前の突出量からあまり変化しない、あるいは変化がない状態となる。 On the other hand, when the contact member 40 and the cell 20 are not in proper contact with each other, the reaction force from the cell 20 acting on the contact member 40 becomes insufficient, so that the movable support portion 140 acts on the support member 14 with respect to the support member 14. The stroke of relative movement is smaller than that at the time of proper contact. As a result, the amount of protrusion of the protrusion 143 from the opening 14h after the attachment of the support member 14 to the battery 2 is not changed much or is not changed from the amount of protrusion before the attachment is completed.
　したがって、支持部材１４のバッテリ２への装着の前後における突起部１４３の開口１４ｈからの突出量の変化を見ることで、接触部材４０とセル２０との接触状態が適正であるのか否かを知ることができる。本実施例によれば、接触部材４０とセル２０との接触状態を、直接目視で確認することをせずに、把握することができるので、バッテリ監視装置の組立工程のサイクルタイムの短縮を図ることが可能となる。 Therefore, by observing the change in the amount of protrusion of the protrusion 143 from the opening 14h before and after the mounting of the support member 14 on the battery 2, it is possible to know whether or not the contact state between the contact member 40 and the cell 20 is appropriate. be able to. According to the present embodiment, the contact state between the contact member 40 and the cell 20 can be grasped without directly confirming it visually, so that the cycle time of the assembly process of the battery monitoring device can be shortened. It becomes possible.
　また、コイルバネ４１が、可動支持部１４０を、突起部１４３の開口１４ｈからの突出量が小さくなる方向に、支持部材１４に対して移動させるように付勢する。これにより、接触部材４０がセル２０と接触していない状態においては、突起部１４３の開口１４ｈからの突出量が小さくなる。したがって、支持部材１４がバッテリ２から取り外された後も、突起部１４３の開口１４ｈからの突出量が大きくなった状態のままになってしまうことがない。仮に、支持部材１４がバッテリ２から取り外された後も突起部１４３の開口１４ｈからの突出量が大きくなった状態が維持されてしまうような場合、その後の支持部材１４のバッテリ２への取り付けにおいて、支持部材１４がバッテリ２に適正に取り付けられたのか否かの判断ができなくなってしまう懸念があるが、本実施例によれば、そのような事態を回避することができる。また、コイルバネ４１の付勢力が作用する方向が、接触部材４０をセル２０に押し付ける方向となることで、両者の接触状態を安定させることができる。 Further, the coil spring 41 urges the movable support portion 140 to move with respect to the support member 14 in a direction in which the protrusion amount of the protrusion 143 from the opening 14h becomes smaller. As a result, when the contact member 40 is not in contact with the cell 20, the protrusion amount of the protrusion 143 from the opening 14h is reduced. Therefore, even after the support member 14 is removed from the battery 2, the protrusion amount of the protrusion 143 from the opening 14h does not remain large. If the state in which the amount of protrusion of the protrusion 143 from the opening 14h remains large even after the support member 14 is removed from the battery 2, when the support member 14 is attached to the battery 2 thereafter, However, there is a concern that it may be impossible to determine whether or not the support member 14 is properly attached to the battery 2, but according to the present embodiment, such a situation can be avoided. Further, since the direction in which the biasing force of the coil spring 41 acts is the direction in which the contact member 40 is pressed against the cell 20, the contact state between the two can be stabilized.
　なお、例えば、可動支持部１４０の支持部材１４に対するストロークをそれらの自重によって制御できるような場合には、コイルバネ４１は必ずしも必要な構成ではなく、これを省いた構成としてもよい。 Note that, for example, when the stroke of the movable support portion 140 with respect to the support member 14 can be controlled by their own weight, the coil spring 41 is not necessarily required and may be omitted.
　＜その他＞
　本実施例で示したバッテリ監視ユニットにおける温度検知部の支持機構の具体的な構成は、あくまで一例である。本実施例と少なくとも同様の効果を得られるものであれば、他の種々の構成を適宜することができる。 <Other>
The specific configuration of the support mechanism of the temperature detection unit in the battery monitoring unit shown in this embodiment is merely an example. Other various configurations can be appropriately used as long as the same effect as at least the present embodiment can be obtained.
　例えば、温度検知部を設ける箇所や数は、例えば、ユニット１の長手長さ（セル２０の配置数）に応じて、温度を検知すべき個所は種々考えられることから、装置構成に応じて適宜設定すればよい。 For example, the location and the number of the temperature detection units are appropriately determined depending on the device configuration, since various locations may be detected depending on the longitudinal length of the unit 1 (the number of cells 20 arranged). Just set it.
　また、本実施例で示した可動支持部１４０の支持部材１４に対するガイド機構の構成は、あくまで一例であり、従来既知の種々のガイド構成を適宜採用してよい。 The configuration of the guide mechanism for the support member 14 of the movable support portion 140 shown in the present embodiment is merely an example, and various conventionally known guide configurations may be appropriately adopted.
　また、本実施例では、可動支持部１４０の突起部１４３を円柱状の構成としたが、かかる構成に限定されるものではなく、角柱や他の種々の形状を適宜採用することができる。
　また、突起部１４３にマーキングや色分けを施して、突出量（露出量）の変化を視認し易くしてもよい。 In addition, in the present embodiment, the protrusion 143 of the movable support portion 140 has a columnar configuration, but the configuration is not limited to this, and a prism or various other shapes can be appropriately adopted.
In addition, the protrusion 143 may be marked or color-coded so that the change in the protrusion amount (exposure amount) can be easily visually recognized.
　また、本実施例では、突起部１４３を、可動支持部１４０の一部として構成したが、押圧面１４２や被ガイド部１４１からなる可動部材とは別体の露出部材（突出部材）として構成してもよい。押圧面１４２や被ガイド部１４１からなる可動部材の移動に連動して露出部材も移動するような駆動リンク機構を設けて、露出部材の配置を任意に設定できるように構成すれば、設計の自由度を高めることが可能である。突起部１４３を可動支持部１４０の一部として構成する場合には、装置構成としてシンプルな構成とすることができ、小型化、軽量化に有利である。 In addition, in this embodiment, the protrusion 143 is configured as a part of the movable support portion 140, but is configured as an exposed member (projection member) that is separate from the movable member including the pressing surface 142 and the guided portion 141. May be. If a drive link mechanism that moves the exposed member in conjunction with the movement of the movable member including the pressing surface 142 and the guided portion 141 is provided and the arrangement of the exposed member can be arbitrarily set, the design is free. It is possible to increase the degree. When the protrusion 143 is configured as a part of the movable support 140, the device configuration can be made simple, which is advantageous for downsizing and weight reduction.
　また、本実施例では、付勢部材としてコイルバネ４１を用いたが、例えば、トーションバネ等の他の付勢部材を用いてもよい。支持部材１４と可動支持部１４０との間における付勢部材の取り付け構成も、付勢部材の構成に応じて適宜変更してよい。 In this embodiment, the coil spring 41 is used as the biasing member, but other biasing members such as a torsion spring may be used. The attachment structure of the biasing member between the support member 14 and the movable support portion 140 may also be appropriately changed according to the configuration of the biasing member.
　また、本実施例では、突起部１４３の支持部材１４表面からの突出量で、支持部材１４のバッテリ２に対する取付状態を視認可能に構成したが、かかる構成に限定されるものではない。例えば、可動支持部１４０の移動に連動して突起部１４３が支持部材１４の表面に沿った方向に移動するような駆動機構を設け、突起部１４３が、支持部材１４の表面に設けた窓から見える長さを露出量として変化させるように構成してもよい。すなわち、突起部１４３が支持部材１４表面の窓から見せる露出長さを変化させることで、突起部１４３を支持部材１４の表面から突出させない形で、支持部材１４の装着状態の目視確認を可能にすることができる。 Further, in the present embodiment, the mounting state of the support member 14 to the battery 2 is configured to be visually recognizable by the protrusion amount of the protrusion 143 from the surface of the support member 14, but the configuration is not limited to such a configuration. For example, a drive mechanism is provided such that the protrusion 143 moves in the direction along the surface of the support member 14 in association with the movement of the movable support portion 140, and the protrusion 143 is moved from a window provided on the surface of the support member 14. The visible length may be changed as the exposure amount. That is, it is possible to visually check the mounting state of the support member 14 in a form in which the projection 143 does not project from the surface of the support member 14 by changing the exposed length that the projection 143 shows from the window on the surface of the support member 14. can do.
　また、本実施例では、バッテリ監視ユニットにおいて、バッテリに接触配置する必要がある構成として、温度検知部を例示したが、これに限定されるものではない。例えば、温度センサ以外の種々のセンサや、電気的な接点を取る必要がある部位において、本実施例と同様の可動支持構成を適用することができる。 In addition, in the present embodiment, the temperature detection unit is illustrated as the configuration that needs to be placed in contact with the battery in the battery monitoring unit, but the configuration is not limited to this. For example, the movable support structure similar to that of the present embodiment can be applied to various sensors other than the temperature sensor and a portion where it is necessary to make an electrical contact.
　１…バッテリ監視ユニット
　１０…ＦＰＣ
　１３…サーミスタ（温度検知素子）
　１４…支持部材
　１４０…可動支持部（可動部材）
　１４１…被ガイド部
　１４２…押圧面
　１４３…突起部（露出部材、露出部、突出部）
　２…バッテリ
　２０…セル
　２０ｓ…セル側面（被接触部、測温部）
　４０…金属板（接触部）
　４１…コイルバネ（付勢部材）
　４２…フォームテープ

  1...Battery monitoring unit 10...FPC
13... Thermistor (temperature detection element)
14... Support member 140... Movable support part (movable member)
141... Guided part 142... Pressing surface 143... Projection (exposed member, exposed part, projecting part)
2... Battery 20... Cell 20s... Cell side surface (contacted portion, temperature measuring portion)
40... Metal plate (contact part)
41... Coil spring (biasing member)
42... Foam tape

Claims (9)

  1. 　バッテリの状態を監視するバッテリ監視ユニットであって、
    　バッテリに取り付けられる支持部材と、
    　前記支持部材における前記バッテリとの取付面に配置され、前記バッテリにおける所定の被接触部と接触する接触部材と、
    　前記接触部材を支持し、前記支持部材に対して移動可能に前記支持部材に支持された可動部材と、
    　前記支持部材における前記取付面とは反対側の面に露出する露出部を有する露出部材であって、前記接触部材が前記被接触部から力を受けることで前記可動部材が前記支持部材に対して移動すると、前記露出部の前記反対側の面における露出量が大きくなるように構成された露出部材と、
    を備えることを特徴とするバッテリ監視ユニット。     A battery monitoring unit for monitoring the state of the battery,
    A support member attached to the battery,
    A contact member arranged on the mounting surface of the support member with the battery, and in contact with a predetermined contacted portion of the battery;
    A movable member that supports the contact member and is movably supported by the support member with respect to the support member;
    An exposed member having an exposed portion exposed on a surface of the support member opposite to the mounting surface, wherein the movable member receives the force from the contacted portion so that the movable member moves with respect to the support member. When moved, an exposure member configured to increase the amount of exposure on the opposite surface of the exposed portion,
    A battery monitoring unit comprising:
  2. 　バッテリにおける測温部としての前記被接触部の温度を、前記接触部材を介して検知する温度検知素子をさらに備えることを特徴とする請求項１に記載のバッテリ監視ユニット。 The battery monitoring unit according to claim 1, further comprising a temperature detection element that detects the temperature of the contacted portion as a temperature measuring portion in the battery via the contact member.
  3. 　前記温度検知素子が接続される温度測定用配線を備えるフレキシブルプリント配線板をさらに備え、
    　前記フレキシブルプリント配線板は、前記支持部材及び前記可動部材に支持され、
    　前記温度検知素子は、前記フレキシブルプリント配線板における前記可動部材に支持された領域に、実装されることを特徴とする請求項２に記載のバッテリ監視ユニット。     Further comprising a flexible printed wiring board having a temperature measuring wiring to which the temperature sensing element is connected,
    The flexible printed wiring board is supported by the support member and the movable member,
    The battery monitoring unit according to claim 2, wherein the temperature detecting element is mounted in a region of the flexible printed wiring board supported by the movable member.
  4. 　前記接触部材は、前記フレキシブルプリント配線板における前記温度検知素子が実装された面とは反対側の面に取り付けられた金属板であることを特徴とする請求項３に記載のバッテリ監視ユニット。 The battery monitoring unit according to claim 3, wherein the contact member is a metal plate attached to a surface of the flexible printed wiring board opposite to a surface on which the temperature detecting element is mounted.
  5. 　前記可動部材を前記支持部材に対して前記露出部の前記露出量が小さくなる方向に移動させるように、前記可動部材を付勢する付勢部材をさらに備えることを特徴とする請求項１～４のいずれか１項に記載のバッテリ監視ユニット。 5. The urging member for urging the movable member so as to move the movable member with respect to the support member in a direction in which the exposed amount of the exposed portion decreases. The battery monitoring unit according to claim 1.
  6. 　前記付勢部材が前記可動部材を付勢する方向は、前記接触部材を前記被接触部に押し付ける方向であることを特徴とする請求項５に記載のバッテリ監視ユニット。 The battery monitoring unit according to claim 5, wherein the biasing member biases the movable member in a direction in which the contact member is pressed against the contacted portion.
  7. 　前記露出部材は、前記露出部として前記反対側の面から突出する突出部を有し、前記可動部材の前記支持部材に対する移動によって前記突出部の前記反対側の面からの突出量が変化することを特徴とする請求項１～６のいずれか１項に記載のバッテリ監視ユニット。 The exposed member has a protruding portion that protrudes from the opposite surface as the exposed portion, and the amount of protrusion from the opposite surface of the protruding portion changes due to movement of the movable member with respect to the support member. The battery monitoring unit according to any one of claims 1 to 6, characterized in that:
  8. 　前記露出部材は、前記可動部材の前記支持部材に対する移動に合せて前記支持部材に対して移動可能に設けられていることを特徴とする請求項１～７のいずれか１項に記載のバッテリ監視ユニット。 The battery monitoring according to any one of claims 1 to 7, wherein the exposing member is provided so as to be movable with respect to the support member in accordance with movement of the movable member with respect to the support member. unit.
  9. 　前記露出部材は、前記可動部材と一体の部材であることを特徴とする請求項１～７のいずれか１項に記載のバッテリ監視ユニット。

          The battery monitoring unit according to any one of claims 1 to 7, wherein the exposing member is a member integrated with the movable member.

PCT/JP2019/035269 2018-11-26 2019-09-06 Battery-monitoring unit WO2020110409A1 (en)

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