JP2011003433A - Connector for battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector that easily and detachably connects the adjacent positive and negative electrodes of a battery.SOLUTION: The connector 10 includes a housing 1, lid housing 2, fixed contact 3, movable contact 4, tension coil spring 5, and operation cam 6. The bottom part of the housing has a pair of slit openings 11a and 11a into which the positive electrode 8a and the negative electrode 8b can be inserted. A pair of first contact pieces 3b and 3b of the fixed contact 3 contacts with one of the faces of the positive electrode 8a and the negative electrode 8b. The lid housing 2 fits in the housing 1. When the lid housing 2 is inserted into the housing 1, the operation cam 6 moves the movable contact 4 against the tension coil spring 5 to depress a pair of second contact pieces 4b and 4b to the pair of the first contact pieces 3b and 3b via the positive electrode 8a and the negative electrode 8b.

Description

  The present invention relates to a battery connector. In particular, the present invention relates to a structure of a battery connector for electrically connecting adjacent positive and negative electrodes in a battery in which battery cells such as lithium ion batteries provided with positive and negative electrodes are stacked in the plate thickness direction.

  In recent years, a battery using a lithium ion battery or the like as a module (constituent unit) is used in an electric vehicle that runs using an electric motor as a power generation source, or a hybrid vehicle that uses an engine and an electric motor together. Further, this battery is also used in a plug-in hybrid car (electric vehicle) that can be charged by a household power source.

  For example, a battery cell such as a lithium ion battery projects a pair of a positive electrode and a negative electrode formed by thin tab terminals to the outside. The battery cells are alternately arranged in multiple rows so that the positive electrode and the negative electrode are adjacent to each other, and the positive and negative electrodes are electrically connected in series so that a large-capacity battery can be obtained. Obtainable.

  As the battery as described above, a battery in which a plurality of battery cells are connected in series by arranging a plurality of battery cells in a battery box in multiple rows and connecting adjacent positive and negative electrodes with a cable (wire). It is disclosed (for example, see Patent Document 1).

JP-A-11-162445

  Although it is not specified in the specification of the battery according to Patent Document 1, in order to connect (wiring) the adjacent positive electrode and negative electrode with a cable, it is necessary to perform an operation of wiring the terminal of the cable with screws. Presumed.

  In general, such a battery is connected by fastening a bolt or a nut with a strip-shaped bus bar interposed between adjacent positive and negative electrodes. Adjacent positive and negative electrodes are fastened by a so-called bolted connection.

  Therefore, it takes time to connect a plurality of battery cells. If a battery connector for easily connecting and disconnecting adjacent positive and negative electrodes can be realized, it is easy to connect a plurality of battery cells, and it is convenient to replace a deteriorated battery cell with a normal battery cell.

  On the other hand, the electrode thickness of recent lithium ion batteries and the like is very thin. Therefore, it is not easy to realize a battery connector that easily connects and disconnects the adjacent positive electrode and negative electrode because the electrode is easily buckled or easily deformed. The above can be said to be the subject of the present invention.

The present invention has been made in view of such a problem, and in a battery in which battery cells protruding from a thin plate-like positive electrode and a negative electrode are stacked in the plate thickness direction, a battery in which adjacent positive and negative electrodes are easily connected and detached. An object is to provide a connector.

  The present inventors have found that these problems can be solved by adopting a ZIF (zero insertion force) structure with a sliding terminal that requires little force to insert or remove the connector. Based on the above, the inventors have invented the following new battery connector.

  (1) In a battery in which battery cells provided with a pair of thin plate-like positive and negative electrodes projecting to the outside are stacked in the plate thickness direction, the adjacent positive and negative electrodes are short-circuited, and a plurality of the battery cells are connected in series A battery connector to be connected, a pair of housings having a pair of recesses that open at the bottom to a pair of slit openings into which the adjacent positive and negative electrodes can be inserted, and a pair of band-shaped first flat portions refracted The first contact piece is accommodated in the pair of recesses, and the pair of first contact pieces is adjacent to one surface of the positive electrode and the negative electrode. A movable contact having a fixed contact to be contacted and a pair of second contact pieces in which both wings of the belt-like second flat portion are refracted, wherein the pair of second contact pieces is the pair of first contact pieces. A movable contact that is movably accommodated in the pair of recesses so as to face each other, and the pair of second contact pieces contact the other surface of the positive electrode and the negative electrode adjacent to each other, and the pair of first contact pieces, A biasing member that biases force in a direction in which the pair of second contact pieces separate from each other, a lid housing that covers the pair of recesses and fits into the housing, and a long length that is fixed to the lid housing The movable contact, when the lid housing is inserted into the housing, the movable cam moves the pair of second contact pieces, so that the positive electrode and the negative electrode adjacent to each other are moved to the pair of the movable contacts. A battery connector having a guide piece for pressing the first contact piece on the second flat portion.

  The battery connector according to the invention of (1) short-circuits adjacent positive and negative electrodes to connect a plurality of battery cells in series. The battery cell is provided with a pair of thin plate-like positive and negative electrodes protruding to the outside. The battery has battery cells stacked in the thickness direction.

  The battery connector according to the invention of (1) includes a housing, a fixed contact, and a movable contact. The housing has a pair of recesses. These recesses have a slit opening at the bottom where an adjacent positive electrode and negative electrode can be inserted.

  The fixed contact has a pair of first contact pieces in which both wings of the belt-like first flat portion are refracted. The pair of first contact pieces are accommodated in the pair of recesses. And a pair of 1st contact piece contacts one side of an adjacent positive electrode and negative electrode.

  The movable contact has a pair of second contact pieces in which both wings of the belt-like second flat portion are refracted. The pair of second contact pieces are movably accommodated in the pair of recesses so as to face the pair of first contact pieces. And a pair of 2nd contact piece contacts the other surface of the adjacent positive electrode and negative electrode.

  The battery connector according to the invention of (1) includes an urging member, a lid housing, and a long operation cam. The biasing member biases the force in a direction in which the pair of first contact pieces and the pair of second contact pieces are separated from each other. The lid housing covers the pair of recesses and fits into the housing. The operating cam is fixed to the lid housing.

  The movable contact has a guide piece on the second flat portion. In the guide piece, when the lid housing is inserted into the housing, the operating cam moves the pair of second contact pieces and presses the adjacent positive electrode and negative electrode against the pair of first contact pieces.

  For example, the battery cell is made of a lithium ion battery, and projects a pair of a positive electrode and a negative electrode formed by thin plate-like tab terminals to the outside. The batteries are stacked in the thickness direction of the battery cells by alternately changing the direction of the battery cells so that the positive electrode and the negative electrode are adjacent to each other.

  And the battery connector by this invention connects the positive electrode and negative electrode which adjoin each other (short circuit), A several battery cell is connected in series.

  Here, the housing and the lid housing have insulating properties. The insulating housing and the lid housing may be a housing and a lid housing made of a non-conductive material, and a synthetic resin is molded to obtain an insulating housing and a lid housing having a desired shape. it can.

  The housing may be rectangular, and the rectangular housing means that the battery connector according to the present invention is a rectangular connector having a rectangular coupling surface. The housing has a rectangular opening that is coupled to the lid housing. In addition, although it was set as the square-shaped housing in embodiment, it is not limited to a square shape, It changes according to a battery and other conditions.

  In addition, the housing having a pair of recesses means that the inside of the housing is divided into two by a partition wall extending in the longitudinal direction. And a pair of slit opening is opened in the bottom part of these recessed parts.

  When the battery connector according to the present invention is attached toward the battery, it is preferable that a guide piece for correctly guiding the housing is provided on the battery side so that the adjacent positive electrode and negative electrode can be correctly inserted into the pair of slit openings.

  The fixed contact and the movable contact are made of, for example, a metal plate, and by forming the developed metal plate, a C-shaped channel-like contact in which both wings of the flat portion are refracted can be obtained. The fixed contact and the movable contact are preferably made of a conductive metal plate, and a copper alloy plate excellent in extensibility and conductivity can be applied, but is not limited to the copper alloy plate.

  For example, the first flat portion of the fixed contact may be attached to the partition wall of the housing by an appropriate means, and a pair of first contact pieces may be disposed so as to straddle the partition wall. It can be accommodated in a pair of recesses.

  The movable contact may be slidably connected to the first flat portion of the movable contact, and a pair of second contact pieces may be disposed so as to straddle the partition wall of the housing and face the pair of first contact pieces. Thus, the pair of recesses are movably accommodated. And if a movable contact is moved, a pair of 2nd contact piece can contact the other surface of the adjacent positive electrode and negative electrode. The movable contact means that it can move with respect to the fixed contact.

  The biasing member may be a tension coil spring as a substance, and a hook provided at one end of the tension coil spring may be locked to a first locking piece protruding from the first flat portion. The hook provided at the other end may be locked to the second locking piece protruding from the second flat portion, and a force is applied in a direction in which the pair of first contact pieces and the pair of second contact pieces are separated from each other. I can be strong.

  In a state before the lid housing is fitted into the housing, the first contact piece of the fixed contact is urged by the urging member so that the first contact piece of the fixed contact is separated from the one second contact piece of the movable contact, and the other of the fixed contact is The first contact piece is separated from the other second contact piece of the movable contact.

  When the battery connector according to the present invention is mounted toward the battery, the pair of first contact pieces of the fixed contact and the pair of second contact pieces of the movable contact are not elastically deformed on one surface of the adjacent positive electrode and negative electrode. The fixed contact can be slid to contact. That is, the battery connector according to the present invention has a structure that requires almost no force in order to insert or remove the adjacent positive electrode and negative electrode into the contact.

  The lid housing and the operating cam may move together. In the process of fitting the lid housing to the housing, the outer wall of the lid housing is restricted by the inner wall of the housing, and the operating cam is only linearly moved with respect to the housing. Permissible.

  The operation cam and the guide piece constitute a cam device that moves the movable contact in a direction orthogonal to the linear motion of the operation cam. The guide piece is provided with a slope so as to open at an angle opposite to the operating cam. When the lid housing is moved toward the housing, the inclined surface is driven by the operating cam, and can move the pair of second contact pieces in a direction approaching the pair of first contact pieces against the biasing member.

  On the other hand, when the lid housing is moved away from the housing, it is biased by the urging member, and the pair of second contact pieces can be moved away from the pair of first contact pieces.

  In a state where the lid housing is completely fitted to the housing, the pair of second contact pieces urges a force to press the pair of first contact pieces via the adjacent positive and negative electrodes. A predetermined contact pressure can be applied to the adjacent positive electrode and negative electrode by the elastic restoring force of the pair of first and second contact pieces.

  In the battery connector according to the invention of (1), when the lid housing is fitted into the housing, the pair of second contact pieces (movable contacts) is paired with the pair of first contact pieces (fixed contacts) via the adjacent positive and negative electrodes. Therefore, a predetermined contact pressure can be applied to the adjacent positive electrode and negative electrode as a reaction.

  Further, the battery connector according to the invention of (1) adopts a ZIF structure with a movable contact (sliding terminal) in order to bring the adjacent positive electrode and negative electrode into contact with the fixed contact and the movable contact. There is an advantage that the buckling load does not act. Therefore, even thin electrodes (positive electrode and negative electrode) can contact the contact without buckling deformation.

  In the battery connector according to the invention of (1), when the adjacent positive electrode and negative electrode are inserted into the housing, the pair of second contact pieces are separated from the pair of first contact pieces and separated from the adjacent positive electrode and negative electrode. Therefore, there is an advantage that variation (manufacturing error or assembly error) between the positions of the adjacent positive electrode and negative electrode can be allowed. And when a pair of 2nd contact piece presses a pair of 1st contact piece, it acts so that the variation in the position of an adjacent positive electrode and negative electrode may be corrected.

  (2) The battery connector according to (1), wherein the pair of first contact pieces and the pair of second contact pieces are integrated or intermittent in the longitudinal direction.

  In the battery connector according to the invention of (2), the pair of first contact pieces and the pair of second contact pieces are integrated or intermittent in the longitudinal direction. Intermittent can include, for example, a form in which a pair of first contact pieces and a pair of second contact pieces are evenly divided, and an equally distributed load acts on the pair of second contact pieces. Therefore, bending (warping) of the pair of second contact pieces can be suppressed. It is preferable to provide a large number of contacts on the pair of second contact pieces, and the contact resistance can be reduced by providing a large number of contacts along the longitudinal direction of the pair of second contact pieces.

  The battery connector according to the present invention employs a ZIF structure with a movable contact (sliding terminal) to bring the adjacent positive electrode and negative electrode into contact with the fixed contact and the movable contact. There is an advantage that it does not work. Therefore, even thin electrodes (positive electrode and negative electrode) can contact the contact without buckling deformation.

  In the battery connector according to the present invention, when the adjacent positive and negative electrodes are inserted into the housing, the pair of second contact pieces are separated from the pair of first contact pieces and separated from the adjacent positive and negative electrodes. Therefore, there is an advantage that variation (manufacturing error or assembly error) between positions of adjacent positive and negative electrodes can be allowed. And when a pair of 2nd contact piece presses a pair of 1st contact piece, it acts so that the variation in the position of an adjacent positive electrode and negative electrode may be corrected.

It is the perspective view which arranged the battery connector by one Embodiment of this invention, and the battery connected to this battery connector facing. FIG. 3 is a perspective exploded view illustrating a configuration of a battery connector according to the embodiment. FIG. 3 is a perspective view illustrating a state in which a fixed contact and a movable contact included in the battery connector according to the embodiment are assembled. It is a longitudinal cross-sectional view of the battery connector according to the embodiment, and is a state diagram in which a pair of second contact pieces are separated from a pair of first contact pieces. It is a longitudinal cross-sectional view of the battery connector by the said embodiment, and is a state figure which a pair of 2nd contact piece pressed a pair of 1st contact piece.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  First, a configuration of a battery connector according to an embodiment of the present invention will be described. FIG. 1 is a perspective view in which a battery connector and a battery connected to the battery connector according to an embodiment of the present invention are arranged to face each other.

  FIG. 2 is an exploded perspective view showing the configuration of the battery connector according to the embodiment. FIG. 3 is a perspective view illustrating a state where the fixed contact and the movable contact included in the battery connector according to the embodiment are assembled.

  FIG. 4 is a vertical cross-sectional view of the battery connector according to the embodiment, in which the pair of second contact pieces are separated from the pair of first contact pieces. FIG. 5 is a vertical cross-sectional view of the battery connector according to the embodiment, in which a pair of second contact pieces presses the pair of first contact pieces.

  Referring to FIG. 1, the battery cell 8 is made of, for example, a lithium ion battery, and projects a pair of a positive electrode 8 a and a negative electrode 8 b formed by thin plate tab terminals to the outside. The battery 80 is stacked in the thickness direction of the battery cell 8 by alternately changing the direction of the battery cell 8 so that the positive electrode 8a and the negative electrode 8b are adjacent to each other. The illustrated battery cell 8 is held by a case 81, and these cases 81 are connected in multiple layers.

  Referring to FIG. 1, a battery connector (hereinafter abbreviated as a connector) 10 according to an embodiment of the present invention short-circuits a positive electrode 8a and a negative electrode 8b, thereby connecting a plurality of battery cells 8 in series. As a substance, the plurality of connectors 10 are arranged in a staggered pattern (staggered pattern) above the battery 80.

  Referring to FIG. 2, the connector 10 includes a rectangular housing 1 and a lid housing 2 serving as a lid. The housing 1 has a pair of recesses 1a and 1a. These recesses 1a and 1a have slit openings 11a and 11a into which the adjacent positive electrode 8a and negative electrode 8b can be inserted at the bottom (see FIG. 4).

  Referring to FIG. 2, the housing 1 has a rectangular opening 1 k that is coupled to the lid housing 2. The housing 1 is divided into two by a partition wall 11 extending in the longitudinal direction. And a pair of slit opening 11a * 11a is opened in the bottom part of a pair of recessed part 1a * 1a (refer FIG. 4).

  Referring to FIG. 2 or FIG. 4 and FIG. 5, the lid housing 2 has an outer shape that fits into the opening 1 k of the housing 1. When the lid housing 2 is pressed toward the housing 1, the opening 1k can be sealed to cover the pair of recesses 1a and 1a.

  2 and 3, the connector 10 includes a fixed contact 3 and a movable contact 4. The fixed contact 3 has a belt-like first flat portion 3a and a pair of first contact pieces 3b and 3b. In the pair of first contact pieces 3b and 3b, both wings of the first flat portion 3a are refracted substantially at right angles (see FIGS. 4 and 5).

  Referring to FIGS. 2 and 3, the fixed contact 3 has a pair of leaf spring pieces 31a and 31a facing opposite directions at both ends. These leaf spring pieces 31 a and 31 a can be locked to the inner wall of the housing 1.

  2 and 3, the fixed contact 3 has a pair of opposed bellows-shaped leaf spring pieces 31b and 31b in the center. These leaf spring pieces 31 b and 31 b can be locked to a pair of recesses 11 b and 11 b provided in the partition wall 11.

  Referring to FIG. 4, the pair of first contact pieces 3b and 3b are accommodated in the pair of recesses 1a and 1a. And a pair of 1st contact pieces 3b * 3b can contact one surface of the positive electrode 8a and the negative electrode 8b which adjoin.

  2 and 3, the movable contact 4 has a belt-like second flat portion 4a and a pair of second contact pieces 4b and 4b. In the pair of second contact pieces 4b and 4b, both wings of the second flat portion 4a are refracted at substantially right angles (see FIGS. 4 and 5).

  Referring to FIGS. 2 and 3, the second flat portion 4a has a pair of square holes 41b and 41b opened in the center. Since the pair of leaf spring pieces 31b and 31b are engaged with the square holes 41b and 41b, the movable contact 4 can be moved (slidable) with respect to the fixed contact 3.

  4 and 5, the pair of second contact pieces 4b and 4b are accommodated in the pair of recesses 1a and 1a so as to face the pair of first contact pieces 3b and 3b. When the movable contact 4 is moved with respect to the fixed contact 3, the pair of second contact pieces 4b and 4b can contact the other surfaces of the adjacent positive electrode 8a and negative electrode 8b.

  Referring to FIGS. 2 and 3, the connector 10 includes two tension coil springs 5 and 5 serving as biasing members. The tension coil spring 5 is provided with a pair of hooks 5f and 5f at both ends.

  Referring to FIGS. 2 and 3, the hook 5f at one end is locked to the first locking piece 31c protruding from the first flat portion 3a. The hook 5f at the other end is locked to the second locking piece 41c protruding from the second flat portion 4a. The tension coil spring 5 urges the force in the direction in which the pair of first contact pieces 3b and 3b and the pair of second contact pieces 4b and 4b are separated from each other.

  Referring to FIGS. 2 and 3, the connector 10 includes a long working cam 6 fixed to the lid housing 2. The working cam 6 is made of, for example, a metal plate, and by forming the developed metal plate, the working cam 6 that forms a pair of square cylindrical cam portions 6b and 6b at both ends of the flat portion 6a is obtained. be able to.

  2 and 3, the operating cam 6 has a pair of press-fitting pieces 61a and 61a protruding from the flat portion 6a. These press-fitting pieces 61 a and 61 a are press-fitted into the back surface of the lid housing 2 to fix the operation cam 6 to the lid housing 2.

  2 and 3, the fixed contact 3 projects a pair of guide pieces 32 and 32 from the first flat portion 3a. And these guide pieces 32 * 32 can guide so that the side surface of a pair of cam part 6b * 6b may slide (refer FIG.4 and FIG.5).

  2 and 3, the movable contact 4 projects a pair of guide pieces 42 and 42 from the second flat portion 4a. And the guide piece 42 is provided with the slope 42a so that it may open and face the cam part 6b.

  Next, the operation of the connector 10 according to the embodiment of the present invention will be described.

  3 and 4, before the lid housing 2 is fitted into the housing 1, the first contact piece 3b of the fixed contact 3 is biased by the two tension coil springs 5 and 5. The movable contact 4 is separated from one second contact piece 4b. Further, the other first contact piece 3 b of the fixed contact 3 is separated from the other second contact piece 4 b of the movable contact 4.

  1 and 4, when the connector 10 according to the embodiment of the present invention is attached to the battery 80, the pair of first contact pieces 3b and 3b and the pair of second contact pieces 4b and 4b are elastically deformed. The fixed contact 3 can be slid and brought into contact with one surface of the adjacent positive electrode 8a and negative electrode 8b. That is, the connector 10 according to the embodiment of the present invention has a ZIF structure that requires little force to insert or remove the adjacent positive electrode 8a and negative electrode 8b from the contact.

  Referring to FIGS. 4 and 5, the lid housing 2 and the operation cam 6 may move together. In the process of fitting the lid housing 2 to the housing 1, the outer wall of the lid housing 2 is attached to the inner wall of the housing 1. Due to the restriction, the linear motion of the operating cam 6 with respect to the housing 1 is allowed.

  4 and 5, the cam portion 6b and the guide piece 42 of the operating cam 6 constitute a cam device that moves the movable contact 4 in a direction orthogonal to the linear motion of the operating cam 6. Yes. When the lid housing 2 is moved toward the housing 1, the inclined surface 42a of the guide piece 42 is driven by the ridge portion of the cam portion 6b and resists the tension coil spring 5, and the pair of second contact pieces 4b and 4b. Can be moved in a direction approaching the pair of first contact pieces 3b and 3b.

  4 and 5, when the lid housing 2 is moved away from the housing 1, the pair of second contact pieces 4b and 4b are urged by the tension coil spring 5 (urging member). It can move in a direction away from the pair of first contact pieces 3b, 3b.

  Referring to FIG. 5, in a state where the lid housing 2 is completely fitted to the housing 1, the pair of second contact pieces 4 b, 4 b is connected to the pair of first contact pieces 3 b via the adjacent positive electrode 8 a and negative electrode 8 b. -Energize the pressing force to 3b. A predetermined contact pressure can be applied to the adjacent positive electrode 8a and negative electrode 8b by the elastic restoring force of the pair of first contact pieces 3b and 3b and the pair of second contact pieces 4b and 4b.

  Referring to FIG. 5, the first contact piece 3b and the second contact piece 4b are illustrated as intersecting each other, but as a matter of fact, the first contact piece 3b and the second contact piece 4b are adjacent to each other. They are elastically deformed with each other via the positive electrode 8a and the negative electrode 8b.

  In the connector 10 according to the embodiment of the present invention, when the lid housing 2 is fitted into the housing 1, the pair of second contact pieces 4b and 4b (movable contacts 4) are connected to the pair of first contacts 8a and 8b through the adjacent positive electrode 8a and negative electrode 8b. Since the contact pieces 3b and 3b (fixed contacts 3) are pressed, a predetermined contact pressure can be applied to the adjacent positive electrode 8a and negative electrode 8b as a reaction.

  The connector 10 according to the embodiment of the present invention adopts a ZIF structure using a movable contact 4 (sliding terminal) in order to bring the adjacent positive electrode 8a and negative electrode 8b into contact with the fixed contact 3 and the movable contact 4. Therefore, there is an advantage that no buckling load acts on the adjacent positive electrode 8a and negative electrode 8b. The connector 10 according to the embodiment of the present invention can contact a contact without buckling deformation even if the electrodes are thin (positive electrode 8a and negative electrode 8b).

  Furthermore, in the connector 10 according to the embodiment of the present invention, when the adjacent positive electrode 8a and negative electrode 8b are inserted into the housing 1, the pair of second contact pieces 4b and 4b are separated from the pair of first contact pieces 3b and 3b. In addition, since they are separated from the adjacent positive electrode 8a and negative electrode 8b, there is an advantage that variation (manufacturing error or assembly error) in the positions of the adjacent positive electrode 8a and negative electrode 8b can be allowed. And when a pair of 2nd contact pieces 4b * 4b presses a pair of 1st contact pieces 3b * 3b, it acts so that the variation in the position of the adjacent positive electrode 8a and the negative electrode 8b may be corrected.

  Referring to FIG. 2 and FIG. 3, the pair of first contact pieces 3 b and 3 b are equally divided (interrupted) along their longitudinal direction. Similarly, a pair of 2nd contact pieces 4b * 4b is divided | segmented equally (interrupted) over those longitudinal directions.

  Therefore, an equally distributed load can be applied to the adjacent positive electrode 8a and negative electrode 8b. Referring to FIGS. 2 to 5, the pair of first contact pieces 3b and 3b and the pair of second contact pieces 4b and 4b are provided with a number of contact points (not shown) slightly projecting on their facing surfaces. Yes. Contact resistance can be reduced by providing a large number of contacts (not shown) in the longitudinal direction of the pair of first contact pieces 3b and 3b and the pair of second contact pieces 4b and 4b.

  The battery connector according to the present invention is not limited to the embodiment. For example, the operation cam 6 is not limited to a molded product of a metal plate, and other materials can be selected. Further, the urging member is not limited to the tension coil spring. You may comprise by urging members, such as a leaf | plate spring.

  Furthermore, the movement of the movable contact (sliding terminal) is limited using a cam device, but the movable contact can also be moved using a link mechanism or a gear device.

  The battery connector according to the present invention exemplifies a lithium ion battery. However, a battery provided with a pair of thin plate-like positive and negative electrodes protruding to the outside is all included in the connected objects of the battery connector according to the present invention.

DESCRIPTION OF SYMBOLS 1 Housing 1a * 1a A pair of recessed part 2 A lid housing 3 A fixed contact 3a 1st flat part 3b * 3b A pair of 1st contact piece 4 A movable contact 4a 2nd flat part 4b * 4b A pair of 2nd contact piece 5 Tensile coil spring ( (Biasing member)
6 Operating cam 8 Battery cell 8a Positive electrode 8b Negative electrode 10 Connector (battery connector)
11a / 11a A pair of slit openings 42 Guide piece 80 Battery

Claims (2)

A battery in which battery cells provided with a pair of thin plate-like positive and negative electrodes projecting to the outside are stacked in the thickness direction, and the adjacent positive and negative electrodes are short-circuited to connect a plurality of the battery cells in series. Connector for
A housing having a pair of recesses that open a pair of slit openings into which the positive electrode and the negative electrode adjacent to each other can be inserted at the bottom;
A fixed contact having a pair of first contact pieces in which both wings of the belt-like first flat portion are refracted, wherein the pair of first contact pieces are accommodated in the pair of recesses, and the pair of first contact pieces A fixed contact that contacts one side of the positive electrode and the negative electrode adjacent to each other;
A movable contact having a pair of second contact pieces refracted by both wings of a belt-like second flat part, wherein the pair of second contact pieces faces the pair of first contact pieces. A movable contact that is movably accommodated in contact with the other surface of the positive electrode and the negative electrode adjacent to the pair of second contact pieces;
A biasing member that biases a force in a direction in which the pair of first contact pieces and the pair of second contact pieces are separated from each other;
A lid housing that covers the pair of recesses and fits into the housing;
A long working cam fixed to the lid housing,
The movable contact is configured such that when the lid housing is inserted into the housing, the operating cam moves the pair of second contact pieces and presses the adjacent positive and negative electrodes against the pair of first contact pieces. A battery connector having a piece on the second flat portion.   2. The battery connector according to claim 1, wherein the pair of first contact pieces and the pair of second contact pieces are integrated or intermittent in the longitudinal direction.

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