WO2023176136A1 - 電源装置及び丸端子固定構造 - Google Patents
電源装置及び丸端子固定構造 Download PDFInfo
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- WO2023176136A1 WO2023176136A1 PCT/JP2023/001562 JP2023001562W WO2023176136A1 WO 2023176136 A1 WO2023176136 A1 WO 2023176136A1 JP 2023001562 W JP2023001562 W JP 2023001562W WO 2023176136 A1 WO2023176136 A1 WO 2023176136A1
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- Prior art keywords
- power supply
- terminal
- supply device
- round terminal
- round
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/305—Clamped connections, spring connections utilising a screw or nut clamping member having means for facilitating engagement of conductive member or for holding it in position
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- 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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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- 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
- H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
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- 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
- H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
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- 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
-
- 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
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
-
- 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
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
-
- 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
- H01M50/543—Terminals
- H01M50/564—Terminals characterised by their manufacturing process
- H01M50/567—Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/34—Conductive members located under head of screw
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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 disclosure relates to a power supply device and a round terminal fixing structure.
- a metal member called a round terminal, a crimp terminal, or the like is attached to the edge of the harness in order to electrically connect the harness.
- a round terminal generally has a caulking portion at its end, and is attached to a harness by caulking. Moreover, a terminal screw hole is opened at the other end, and other terminals, such as a bus bar, etc., are fastened together. Inside the power supply device, electrical connections are made using such round terminals.
- the repulsive force of the harness 960 acts in a direction that causes the round terminal 950 to float, this cannot be suppressed with the configuration shown in FIG. If such a situation arises in which it is impossible to position the round terminals, the work of screwing together the round terminals will be hindered, resulting in a decrease in work efficiency.
- the harness when the number of battery cells used increases in order to increase the output and capacity of power supplies, the harness also becomes thicker, which reduces the flexibility of the harness and increases repulsive force. There is a tendency.
- restrictions on wiring are likely to occur due to the internal layout of the power supply device, making it necessary to bend the harness accordingly. As a result, the repulsive force of the harness is likely to be generated at the round terminal at the edge.
- a power supply device includes a battery cell, a harness connected to the battery cell, a round terminal connected to the harness, a circuit board electrically connected to the round terminal, and a circuit board electrically connected to the round terminal.
- the battery cell includes a housing that houses the battery cell, the circuit board, the harness, and the round terminal, and a pair of guide pieces that hold the round terminal.
- the caulking portion includes a flat portion having an end through which the terminal screw hole vertically passes, and a caulking portion connected to the one end of the harness by caulking one end of the harness.
- the pair of guide pieces respectively extend the left and right edges of the flat part of the round terminal perpendicular to the up and down direction in a posture in which the round terminal is fixed to the housing with a screw inserted into the terminal screw hole. Hold.
- a round terminal fixing structure includes a round terminal connected to a harness and a pair of guide pieces that hold the round terminal.
- the round terminal has a flat part having an end through which a terminal screw hole passes in the vertical direction, and a caulking part connected to the harness by caulking the harness.
- the pair of guide pieces are arranged on the flat part of the round terminal so that the round terminal is fastened together with a connection object to be electrically connected to the round terminal with a screw inserted into the terminal screw hole.
- the left and right edges perpendicular to the up and down direction are held respectively.
- the guide pieces provided on the left and right sides of the flat part of the round terminal prevent the round terminal from rotating due to the repulsive force of the harness, etc. A perfect threaded fit is achieved.
- FIG. 1 is an external perspective view of a power supply device according to a first embodiment.
- FIG. 2 is an exploded perspective view of the power supply device of FIG. 1.
- 3 is an exploded perspective view showing a state in which the circuit board is removed from the output unit of the power supply device shown in FIG. 2.
- FIG. FIG. 4 is a cross-sectional perspective view of the power supply device of FIG. 1 taken along line IV-IV.
- FIG. 5 is an enlarged plan view of the power supply device of FIG. 3.
- FIG. 6 is an enlarged perspective view of main parts of the power supply device of FIG. 5.
- FIG. FIG. 7 is an exploded perspective view of the power supply device of FIG. 6.
- FIG. 8 is a cross-sectional view of the power supply device of FIG. 6 taken along line VIII-VIII.
- FIG. 9 is a cross-sectional view of the power supply device of FIG. 6 taken along line IX-IX.
- FIG. 10 is a perspective view showing a conventional round terminal fixing structure.
- FIG. 11 is a perspective view showing a state in which a round terminal is being positioned in a power supply device according to a comparative example.
- the round terminal has a positioning hole opened in the flat portion apart from the terminal screw hole, and the power supply device further includes the round terminal.
- a positioning pin may be provided to be inserted into the positioning hole in a position to be fixed to the housing by the terminal screw hole.
- the positioning hole may be formed between the terminal screw hole and the caulking portion.
- the positioning hole may be formed to have a smaller diameter than the terminal screw hole.
- the pair of guide pieces continuously extend from the left and right sides of the round terminal to the upper surface thereof in a posture of holding the left and right sides of the round terminal.
- An overlapping surface may be formed that overlaps the end of the.
- the overlapping surfaces of the pair of guide pieces may be formed in a claw shape.
- the round terminal is fixed to the housing by the terminal screw hole, and the round terminal is fixed to the left and right sides of the flat part of the round terminal.
- the guide pin may be provided at a different position from the pair of guide pieces.
- the guide pin may be formed in a cylindrical shape in any of the above embodiments.
- the guide pin may be integrally formed with the casing in any of the above embodiments.
- a power supply device further includes a square nut arranged in alignment with the terminal screw hole of the round terminal, and a square nut that is not rotated. It may also include a nut storage wall for storing the nuts.
- a power supply device further includes a U-shaped conductive spacer that is fixed to the back side of the circuit board and has a U-shaped cross section and has a spacer screw hole.
- the circuit board may have a board through hole in a region where the U-shaped conductive spacer is fixed.
- each element constituting the present disclosure may be configured such that multiple elements are configured from the same member so that one member serves as multiple elements, or conversely, the function of one member may be performed by multiple members. It can also be accomplished by sharing.
- terms indicating directions such as “vertical direction”, “horizontal direction”, “top surface”, etc. indicate relative directions that are determined only by the relative positional relationship of the constituent members of the power supply device, and do not refer to the vertical direction, etc. It does not indicate an absolute direction.
- the power supply device of the present disclosure can be used as a power supply for portable electric devices such as electric cleaners and power tools, or as a backup power source for servers in stationary power storage applications, or as a power supply device for home use, business offices, and factories. Furthermore, it can be used as a driving power source for assisted bicycles, electric scooters, electric carts, and vehicles such as hybrid cars and electric cars.
- a power supply device used as a backup power source for a server or the like will be described.
- FIGS. 1 to 3 A power supply device 100 according to Embodiment 1 of the present disclosure is shown in FIGS. 1 to 3.
- FIG. 1 is an external perspective view of the power supply device 100 according to the first embodiment
- FIG. 2 is an exploded perspective view of the power supply device 100 of FIG. 1
- FIG. 3 is a diagram showing the circuit board 30 removed from the output unit 22 of FIG. Each shows an exploded perspective view showing the state in which it is installed.
- the power supply device 100 shown in these figures includes a housing 10 and an internal assembly 20.
- the housing 10 stores contents therein.
- the casing 10 shown in FIG. 1 is formed in a box shape, and has a storage space for the internal assembly 20 therein.
- the housing 10 is divided into two parts: a lid case 11 and an open case 12.
- the housing 10 is made of metal, resin, or the like.
- the internal assembly 20 includes a battery block 21 including one or more battery cells 1 and an output unit 22 including an external output terminal 23.
- the battery block 21 has a large number of cylindrical secondary battery cells housed in a battery holder so as to be arranged vertically. Battery cells 1 are connected in parallel and series.
- the output unit 22 includes a unit case 24, a circuit board 30, an external output terminal 23, and a guide piece 26.
- the unit case 24 constitutes a part of the casing 10 that houses the contents, and holds the circuit board 30 and the external output terminal 23.
- the unit case 24 is molded from an insulating member, such as resin.
- the circuit board 30 is equipped with electronic circuits such as a voltage detection circuit that detects the total potential of a battery assembly in which the battery cells 1 are connected in series or parallel, a voltage detection circuit that detects an intermediate potential, a control circuit that controls charging and discharging, and a safety circuit. are doing.
- the circuit board 30 is formed in a rectangular shape.
- the circuit board 30 is composed of two boards, a first board 31 and a second board 32.
- the first substrate 31 and the second substrate 32 are connected with a spacer 33 in between. These first board 31 and second board 32 are electrically connected via a board connector 34.
- the second substrate 32 has a plurality of U-shaped conductive spacers 40 fixed to its lower surface.
- Each U-shaped conductive spacer 40 has a U-shaped cross-sectional view, and is electrically connected to a round terminal 50, which will be described later, by screwing with a screw 45, as shown in the cross-sectional view of FIG. For this reason, the U-shaped conductive spacer 40 has a spacer screw hole 41 opened in the upper surface of the U-shape, into which the screw 45 is screwed. The spacer screw hole 41 penetrates the conductive spacer 40 in the vertical direction D1.
- the U-shaped conductive spacer 40 is screwed into the unit case 24 with the screw 45 from the back side (the top side in FIG. 3) of the second board 32. For this reason, a large substrate through hole 35 through which the screw head 46 of the screw 45 can be inserted is opened on the back side of the second substrate 32 at the portion where the U-shaped conductive spacer 40 is provided.
- the square nuts 38 and round terminals 50 set in the unit case 24 first the second board 32 to which the U-shaped conductive spacers 40 have been soldered is stacked, and the screws 45 are inserted through the board through-holes 35. , the U-shaped conductive spacer 40 can be fastened together with the round terminal 50 from the back side.
- the terminal screw hole 53 of the round terminal 50 is connected to the female thread of the square nut 38 held in the nut storage wall 25. It is possible to reliably maintain the alignment with the hole 138 and perform the assembly work smoothly. Further, with the second board 32 screwed into the unit case 24, the first board 31 is fixed to the back side of the second board 32.
- the external output terminal 23 is a terminal for outputting the output voltage of the battery cells 1 connected in series and parallel to the outside. This external output terminal 23 is connected to the total output of the battery block 21 via a harness 60.
- Harness 60 is connected to the output of battery block 21. Further, the round terminal 50 is electrically connected to the circuit board 30.
- the round terminal 50 has a caulked portion 51 and a flat portion 52, as shown in the perspective views of FIGS. 6 and 7.
- the caulked portion 51 and the flat portion 52 are integrally formed of a metal plate such as aluminum.
- the caulking portion 51 is a portion that is caulked and connected to the harness 60. Before caulking, the caulking part 51 is a flat caulking piece that extends left and right, and is caulked with pliers or the like so as to sandwich the strands exposed from the tip of the harness 60, so that the strands are narrowly attached. It is attached to the tip of the harness 60.
- the flat portion 52 is formed into a battledore-shaped flat plate.
- a terminal screw hole 53 is opened at the end of the flat portion 52 .
- the terminal screw hole 53 penetrates the flat portion 52 in the vertical direction D1.
- the terminal screw hole 53 is a hole through which the screw 45 is inserted to fix the round terminal 50 to the unit case 24 with the screw 45.
- the unit case 24 has a nut storage wall 25 on its bottom surface that holds a square nut 38.
- a plurality of nut storage walls 25 are provided within the unit case 24. It is preferable that each nut storage wall 25 is formed integrally with the unit case 24.
- the terminal screw holes 53 opened in the flat parts 52 of the respective round terminals 50 are aligned and screwed together with the screws 45.
- the round terminal 50 is fastened together with the object to be electrically connected using the screw 45.
- a screw hole is also opened in the object to be connected.
- the U-shaped conductive spacer 40 fixed to the second substrate 32 is fastened together as the connection object.
- the pair of guide pieces 26 are in a position to hold the left and right sides of the round terminal 50, and continuously overlap with the ends of the upper surface in the vertical direction D1 from the left and right sides of the round terminal 50. It has an overlapping surface 27.
- the overlapping surfaces 27 formed on each guide piece 26 can prevent the round terminal 50 from lifting due to the repulsive force of the harness 60 or the like.
- the round terminal may float or rotate due to the repulsive force of the harness, making it difficult to position it in the desired posture and position. Furthermore, even after positioning, the parts may shift, which poses a problem of hindering assembly workability.
- the guide piece 26 since the guide piece 26 is provided with the overlapping surface 27, the round terminal itself is difficult to float and rotation can be prevented, which provides the advantage that the screw connection can be ensured. .
- the guide piece 26 is made of an elastic member. Preferably, it is formed integrally with the unit case 24. By making the unit case 24 made of resin, elasticity can be easily imparted to the guide piece 26.
- the guide piece 26 may be configured as a separate member from the unit case and fixed to the inner surface of the unit case by adhesive, fitting, or the like.
- the overlapping surface 27 of the guide piece 26 is preferably formed into a claw shape. That is, as shown in FIG. 8, the round terminal 50 is guided between the pair of guide pieces 26 by providing an inclined surface 28 that is inclined in a direction in which the opening gradually narrows from the tip of the pair of guide pieces 26. It becomes easier to do. Further, the lower end of the sloped surface 28 is the narrowest part where the interval between the sloped surfaces 28 is the narrowest, and this narrowest part is configured to be narrower than the flat part 52 of the round terminal 50. As a result, when the guide piece 26 is elastically deformed and the flat part 52 is pushed between the guide pieces 26, the upper surface of the flat part 52 is pressed by the claw-shaped overlap surface 27, making it difficult to come out. 52 is prevented from rising.
- the round terminal 50 has a positioning hole 54 opened in the flat portion 52 and spaced apart from the terminal screw hole 53.
- the positioning hole 54 penetrates the flat portion 52 in the vertical direction D1.
- the unit case 24 is provided with a positioning pin 29 that is inserted into the positioning hole 54 so as to position the round terminal 50 in a position that fixes the terminal screw hole 53 of the round terminal 50. With such a configuration, it is possible to insert the positioning pin 29 into the positioning hole 54 to position the round terminal 50, and to prevent rotation due to the repulsive force of the harness 60.
- the positioning hole 54 is formed between the terminal screw hole 53 and the caulking portion 51. Further, it is preferable that the positioning hole 54 has a size different from that of the terminal screw hole 53. This makes it easy to visually distinguish it from the terminal screw hole 53. In the example of FIG. 7, the positioning hole 54 is formed to have a smaller diameter than the terminal screw hole 53.
- the unit case 24 may be provided with a pair of guide pins 29B at different positions from the pair of guide pieces 26, as shown in FIGS. 6 and 7. As shown in the cross-sectional view of FIG. 9, each guide pin 29B abuts the left and right sides of the flat portion 52 of the round terminal 50 to position the round terminal 50.
- the guide pin 29B By providing the guide pin 29B in addition to the pair of guide pieces 26 in this manner, rotation of the round terminal 50 can be further suppressed. In particular, even when the reaction force of the harness 60 is large, the combination of the guide piece 26 and the guide pin 29B can counteract the rotational force.
- the guide pin 29B is preferably provided between the pair of guide pieces 26 and the nut storage wall 25, as shown in FIG. Thereby, the side surfaces of the flat portion 52 can be distributed and guided.
- Each guide pin 29B is formed into a cylindrical shape. Further, the guide pin 29B is preferably formed integrally with the unit case 24. More preferably, the guide pin 29B is formed in the same shape as the positioning pin 29. Thereby, a plurality of guide pins 29B and positioning pins 29 can be formed together in the unit case 24.
- the power supply device and round terminal fixing structure according to the present disclosure can be suitably used as a power source for portable electric devices such as electric cleaners and power tools.
- portable electric devices such as electric cleaners and power tools.
- it can be used as appropriate for applications such as power supply devices for moving bodies such as assisted bicycles and electric carts, and for electrical connections using round terminals in various electrical devices.
- Power supply device 1 Battery cell 10 Housing 11 Lid case 12 Opening case 20 Internal assembly 21 Battery block 22 Output unit 23 External output terminal 24 Unit case 25 Nut storage wall 26 Guide piece 27 Overlapping surface 28 Inclined surface 29 Positioning pin 29B Guide Pin 30 Circuit board 31 First board 32 Second board 33 Spacer 34 Board connector 35 Board through hole 38 Square nut 40 U-shaped conductive spacer 41 Spacer screw hole 45 Screw 46 Screw head 50 Round terminal 51 Caulked part 52 Flat part 53 Terminal screw hole 54 Positioning hole 60 Harness 950 Round terminal 951 Caulking part 953 Terminal screw hole 956 Standing piece 960 Harness
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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)
- Microelectronics & Electronic Packaging (AREA)
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
本開示の実施形態1に係る電源装置100を図1~図3に示す。これらの図において、図1は実施形態1に係る電源装置100の外観斜視図、図2は図1の電源装置100の分解斜視図、図3は図2の出力ユニット22から回路基板30を外した状態を示す分解斜視図を、それぞれ示してる。これらの図に示す電源装置100は、筐体10と、内部アセンブリ20を備える。筐体10は、その内部に内容物を収納する。図1に示す筐体10は箱形に形成されており、その内部に内部アセンブリ20の収納空間を設けている。図2の例では、筐体10は蓋ケース11と開口ケース12に二分割されている。筐体10は金属や樹脂等で形成される。
出力ユニット22は、ユニットケース24と、回路基板30と、外部出力端子23と、ガイド片26を備えている。ユニットケース24は、内容物を収納する筐体10の一部を構成し、回路基板30と、外部出力端子23を保持する。ユニットケース24は、絶縁性を有する部材、例えば樹脂で成形される。
回路基板30は、電池セル1が直列や並列に接続された電池集合体の総電位や、中間の電位を検出する電圧検出回路、充放電を制御する制御回路、安全回路等の電子回路を実装している。回路基板30は、矩形状に形成されている。
各コ字状導電スペーサ40は、断面視をコ字状としており、図4の断面図に示すように、後述する丸端子50と螺子45で螺合して電気接続される。このためコ字状導電スペーサ40は、螺子45を螺合するためのスペーサ螺子孔41をコ字状の上面に開口している。スペーサ螺子孔41は導電スペーサ40を上下方向D1に貫通している。
丸端子50は、図6及び図7の斜視図に示すように、かしめ部51と平坦部52を有する。これらかしめ部51と平坦部52は、アルミニウム等の金属板で一体に形成される。
また出力ユニット22は、一対のガイド片26を設けている。一対のガイド片26は、丸端子50をユニットケース24に端子螺子孔53でもって固定する姿勢で、丸端子50の平坦部52の左右を保持する。すなわち、一対のガイド片26は、端子螺子孔53に挿通された螺子45で丸端子50をユニットケース24に固定する姿勢で、丸端子50の平坦部52の上下方向D1に交差する左右方向D2の縁152に当接して縁152をそれぞれ保持する。実施の形態では、左右方向D2は上下方向D1に直角である。このような構成により、丸端子50がハーネス60の反発力等により回転することを、丸端子50の平坦部52の左右に設けたガイド片26によって阻止し、安定的な螺合が実現される。
丸端子50は、図6、図7に示すように、平坦部52に端子螺子孔53と離間して位置決め孔54を開口している。位置決め孔54は平坦部52を上下方向D1に貫通する。またユニットケース24は、丸端子50の端子螺子孔53を固定する姿勢に位置決めするよう、位置決め孔54に挿通される位置決めピン29を設けている。このような構成により、位置決め孔54に位置決めピン29を挿通して丸端子50を位置決めすると共に、ハーネス60の反発力などにより回転する事態を阻止できる。
さらにユニットケース24は、図6、図7に示すように、一対のガイド片26と異なる位置に、一対のガイドピン29Bを設けてもよい。各ガイドピン29Bは、図9の断面図に示すように、丸端子50の平坦部52の左右にそれぞれ当接して、丸端子50を位置決めする。このように一対のガイド片26に加えて、さらにガイドピン29Bも設けることで、丸端子50の回転を一層抑制できる。特に、ハーネス60の反力が大きい場合でも、ガイド片26とガイドピン29Bの組み合わせによって回転力に対抗できる。
1 電池セル
10 筐体
11 蓋ケース
12 開口ケース
20 内部アセンブリ
21 電池ブロック
22 出力ユニット
23 外部出力端子
24 ユニットケース
25 ナット収納壁
26 ガイド片
27 オーバーラップ面
28 傾斜面
29 位置決めピン
29B ガイドピン
30 回路基板
31 第一基板
32 第二基板
33 スペーサ
34 基板コネクタ
35 基板貫通孔
38 角型ナット
40 コ字状導電スペーサ
41 スペーサ螺子孔
45 螺子
46 螺子頭
50 丸端子
51 かしめ部
52 平坦部
53 端子螺子孔
54 位置決め孔
60 ハーネス
950 丸端子
951 かしめ部
953 端子螺子孔
956 立設片
960 ハーネス
Claims (13)
- 電池セルと、
前記電池セルに接続されたハーネスと、
端子螺子孔が上下方向に貫通する端部を有する平坦部と、
前記ハーネスの一端をかしめて前記ハーネスの前記一端に接続されたかしめ部と、
を有する丸端子と、
前記丸端子に電気的に接続された回路基板と、
前記電池セルと前記回路基板と前記ハーネスと前記丸端子とを収納する筐体と、
前記端子螺子孔に挿通された螺子で前記丸端子を前記筐体に固定する姿勢で、前記丸端子の前記平坦部の前記上下方向と交差する左右方向の縁をそれぞれ保持する一対のガイド片と、
を備えた電源装置。 - 請求項1に記載の電源装置であって、
前記丸端子の前記平坦部には前記端子螺子孔と離間して前記上下方向に前記平坦部を貫通する位置決め孔が設けられており、
前記電源装置は、前記丸端子を前記筐体に前記端子螺子孔を貫通する螺子で固定する姿勢で、前記位置決め孔に挿通される位置決めピンをさらに備えた電源装置。 - 請求項2に記載の電源装置であって、
前記位置決め孔は前記端子螺子孔と前記かしめ部との間に設けられている、電源装置。 - 請求項2又は3に記載の電源装置であって、
前記位置決め孔は、前記端子螺子孔よりも小径である、電源装置。 - 請求項1~4のいずれか一項に記載の電源装置であって、
前記一対のガイド片は、前記丸端子の前記左右方向の前記縁をそれぞれ保持する姿勢で、前記丸端子の左右からそれぞれ連続して前記丸端子の前記端部と前記上下方向でオーバーラップするオーバーラップ面をそれぞれ有する、電源装置。 - 請求項5に記載の電源装置であって、
前記一対のガイド片は、前記オーバーラップ面を有する鉤爪状に形成されている、電源装置。 - 請求項1~6のいずれか一項に記載の電源装置であって、
前記丸端子を前記筐体に前記端子螺子孔に挿通された螺子で固定する姿勢で、前記丸端子の前記平坦部の左右であって、前記一対のガイド片と異なる位置にそれぞれ設けられた一対のガイドピンをさらに備えた電源装置。 - 請求項7に記載の電源装置であって、
前記一対のガイドピンが円柱状に形成されている、電源装置。 - 請求項7又は8に記載の電源装置であって、
前記一対のガイドピンが前記筐体に一体に形成されている、電源装置。 - 請求項1~9のいずれか一項に記載の電源装置であって、
前記丸端子の端子螺子孔と芯合する雌螺子切り孔を有する角型ナットと、
前記角型ナットを回転しないように収納するナット収納壁と、
をさらに備えた電源装置。 - 請求項10に記載の電源装置であって、
前記一対のガイド片及び前記ナット収納壁が前記筐体に一体に形成されている、電源装置。 - 請求項1~11のいずれか一項に記載の電源装置であって、
前記回路基板に固定され、スペーサ螺子孔が貫通する断面視コ字状のコ字状導電スペーサをさらに備え、
前記コ字状導電スペーサを固定した前記回路基板の領域には基板貫通孔が設けられている、電源装置。 - 上下方向に端子螺子孔が貫通する端部を有する平坦部と、
ハーネスをかしめて前記ハーネスに接続されたかしめ部と、
を有する丸端子と、
前記端子螺子孔に挿通された螺子で前記丸端子を、前記丸端子に電気接続する接続対象物と共締めする姿勢となるように、前記丸端子の前記平坦部の前記上下方向に直角の左右方向の縁をそれぞれ保持する一対のガイド片と、
を備えた丸端子固定構造。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/844,642 US20250210886A1 (en) | 2022-03-18 | 2023-01-19 | Power supply device and round terminal securing structure |
| CN202380027067.1A CN118830127A (zh) | 2022-03-18 | 2023-01-19 | 电源装置及圆端子固定结构 |
| JP2024507541A JPWO2023176136A1 (ja) | 2022-03-18 | 2023-01-19 | |
| EP23770099.2A EP4496097A4 (en) | 2022-03-18 | 2023-01-19 | POWER SUPPLY DEVICE AND ROUND TERMINAL FIXING STRUCTURE |
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Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250210886A1 (ja) |
| EP (1) | EP4496097A4 (ja) |
| JP (1) | JPWO2023176136A1 (ja) |
| CN (1) | CN118830127A (ja) |
| WO (1) | WO2023176136A1 (ja) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1131545A (ja) * | 1997-07-10 | 1999-02-02 | Yazaki Corp | 端子の接続固定構造 |
| JP2014220932A (ja) | 2013-05-09 | 2014-11-20 | 矢崎総業株式会社 | 丸端子固定構造 |
| JP2018056071A (ja) * | 2016-09-30 | 2018-04-05 | 矢崎総業株式会社 | 端子保持構造および成形品 |
| CN207558910U (zh) * | 2017-11-29 | 2018-06-29 | 长城汽车股份有限公司 | 端子安装结构和具有其的电池包 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3613445B2 (ja) * | 1999-05-18 | 2005-01-26 | 矢崎総業株式会社 | バッテリ接続プレート |
| JP2002157984A (ja) * | 2000-11-21 | 2002-05-31 | Shin Kobe Electric Mach Co Ltd | 組電池及び電池モジュール |
| EP2858850B1 (de) * | 2012-06-06 | 2019-04-17 | Johnson Controls Advanced Power Solutions GmbH | Akkumulatoranordnung, stromschienenelement dafür sowie verfahren zur herstellung einer akkumulatoranordnung |
| JP6570568B2 (ja) * | 2017-03-14 | 2019-09-04 | 株式会社オートネットワーク技術研究所 | 配線モジュール |
| IT201800007391A1 (it) * | 2018-07-20 | 2020-01-20 | Caricabatterie per autoveicoli elettrici o ibridi |
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2023
- 2023-01-19 EP EP23770099.2A patent/EP4496097A4/en active Pending
- 2023-01-19 WO PCT/JP2023/001562 patent/WO2023176136A1/ja not_active Ceased
- 2023-01-19 CN CN202380027067.1A patent/CN118830127A/zh active Pending
- 2023-01-19 US US18/844,642 patent/US20250210886A1/en active Pending
- 2023-01-19 JP JP2024507541A patent/JPWO2023176136A1/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1131545A (ja) * | 1997-07-10 | 1999-02-02 | Yazaki Corp | 端子の接続固定構造 |
| JP2014220932A (ja) | 2013-05-09 | 2014-11-20 | 矢崎総業株式会社 | 丸端子固定構造 |
| JP2018056071A (ja) * | 2016-09-30 | 2018-04-05 | 矢崎総業株式会社 | 端子保持構造および成形品 |
| CN207558910U (zh) * | 2017-11-29 | 2018-06-29 | 长城汽车股份有限公司 | 端子安装结构和具有其的电池包 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4496097A4 |
Also Published As
| Publication number | Publication date |
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| JPWO2023176136A1 (ja) | 2023-09-21 |
| US20250210886A1 (en) | 2025-06-26 |
| EP4496097A4 (en) | 2025-07-16 |
| EP4496097A1 (en) | 2025-01-22 |
| CN118830127A (zh) | 2024-10-22 |
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