JP2013218928A - Connector gadget and battery pack using same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce bending fatigue at the root portion of a flat cable and increase the reliability in electric connection at that portion.SOLUTION: Disclosed is a connector gadget to which a flat cable is fixed, the connector gadget comprising: a connector body 43 for fixing the cable; a drawing surface 46 for drawing out the flat cable from the connector body 43 in an inclined manner; and a cable guide portion 47 projecting in an inclined manner from the drawing surface 46 so as to cover the periphery of the flat cable that is drawn out from the drawing surface 46, the guide portion 47 extending beyond the cross section of the flat cable on the drawing surface 46. The cable guide portion 47, by curving its own inner surface, semi-circularly surrounds the drawing surface 46, and the flat cable is drawn out from the semi-circular opening end.

Description

  The present invention relates to a connector device for fixing a flat cable, for example, a connector device for fixing a flat cable drawn from a battery pack including a built-in battery that can be charged, and a battery pack including the same.

  A slip cable having a rectangular cross section is called a flat cable, a flat wire, or the like, and is widely used for easily pulling a connector from an electric device. Such a flat cable is often a fixed type because there is a risk of losing the cable when the edge of the cable is made to be removable from an electric device. In this case, the base portion of the flat cable is fixed to the electric device, and the tip portion is fixed to the connector.

  However, flat cables that are fixed to connectors and electrical equipment can cause excessive load and fatigue on the internal wires by bending strongly or repeatedly at the fixed part pulled out from the electrical equipment or connector. May cause breakage or contact failure. In particular, such a cable is flexible to some extent in order to facilitate handling, and on the contrary, it is possible to bend it in an unreasonable direction. An excessive load may be applied due to the bending at the part pulled out from the connector. Once a defect occurs, the fixed cable is not easily exchanged as compared with the insertion / removal cable, so that it is difficult to continue using the electric device itself.

JP 2008-67435 A

  The present invention has been made to solve such conventional problems. A main object of the present invention is to provide a connector device that reduces bending fatigue at the base portion of a flat cable and increases the reliability of electrical connection in this portion, and a battery pack including the connector device.

Means for Solving the Problems and Effects of the Invention

  In order to achieve the above object, according to the connector device of the first aspect of the present invention, there is provided a connector device for fixing a flat cable, comprising: a connector main body for fixing a cable; A flat cable extending from the pull-out surface so as to cover the periphery of the flat cable drawn from the pull-out surface and the flat cable drawn out from the pull-out surface. A cable guide portion extending beyond the cross section of the cable guide portion, and the cable guide portion curves the inner surface thereof to surround the drawing surface in a semicircular shape, and the flat shape extends from the semicircular opening end. The cable can be pulled out.

  With the above-described configuration, even if an attempt is made to bend the flat cable to the cable guide portion side, excessive bending is restricted by the cable guide portion, so that bending fatigue at this portion can be reduced.

  Further, according to the connector device according to the second aspect, the connector body has a second connector plane perpendicular to the lead-out surface, and at least at a boundary portion between the lead-out surface and the second connector plane. In the region where the flat cable is bent, a bank portion extended from the lead-out surface is formed, and the edge of the bank portion that contacts the flat cable can be chamfered.

  With the above configuration, when the flat cable is bent toward the bank side, the edge is chamfered, so that the possibility of damaging the bent portion at the edge portion can be reduced and the flat cable can be protected.

  Furthermore, according to the connector apparatus which concerns on a 3rd side surface, the said cable guide part can be comprised with a member which has flexibility.

  With the above configuration, when a flat cable drawn from the semicircular opening end is bent at the edge of the cable guide, excessive stress is applied to the edge or edge of the cable guide. It can be reduced and the flat cable can be protected.

  Furthermore, according to the connector device according to the fourth aspect, the cable guide portion is formed integrally with the connector main body, and the connector main body can be made of an elastomer.

  Furthermore, according to the connector device according to the fifth aspect, the cable guide portion can have a semicircular opening end formed in a mortar shape.

  Furthermore, the connector device according to the sixth aspect further includes a flat cable fixed to the lead-out surface, and the flat cable has a wire rod as an earphone wire and is parallel to the flat cable. It is possible to connect a plurality of earphone wires arranged in parallel.

  With the above configuration, the bending strength of the flat cable can be improved and a large current can be taken out.

  Furthermore, according to the battery pack including the connector device according to the seventh aspect, the secondary battery cell having a rectangular outer shape, the circuit board connected to the secondary battery cell, the secondary battery cell, A main body case for storing a circuit board; and a cable portion for connecting the main body case and the connector device, wherein the connector device is detachable from the main body case, and the connector device is connected to a battery drive device. The device side secondary battery built in the battery drive device can be fed.

  With the above configuration, the connector device can be suitably used as a battery pack connector for charging the battery-driven device.

  Furthermore, according to the battery pack including the connector device according to the eighth aspect, the connector device includes an output terminal for connection with a battery driving device to be fed, and the main body case includes the connector device. A terminal insertion hole for inserting the output terminal can be formed in a state in which is mounted.

  With the above configuration, when the connector portion is not used, the output terminal can be inserted into the terminal insertion hole, and can also be used as a physical connection structure for connecting the connector portion to the main body case.

  Furthermore, according to the battery pack including the connector device according to the ninth aspect, the main body case is provided with a cutout portion in which a portion to which the connector device is connected is cut, and the connector device includes the main body. It can be formed so as to have an external appearance integrated with the main body case in a state of being attached to the cutout portion of the case.

  With the configuration described above, the shape of the connector portion can be integrated with the main body case, and an appearance that is excellent in design can be obtained.

  Furthermore, according to the battery pack including the connector device according to the tenth aspect, the main body case includes a power supply connector for supplying power to the secondary battery cell, and the connector device is attached to the main body case. In this state, the power supply connector can be closed by the connector device.

  With the above configuration, the connector part can also be used as a cover for the power supply connector, and when not in use, the power supply connector can be closed to prevent foreign substances such as dust from entering, and the power supply connector can be prevented from being exposed, and the appearance can be cleaned Can improve.

It is a perspective view which shows the battery pack using the connector apparatus which concerns on Embodiment 1 of this invention. It is a perspective view which shows the state which supplies electric power to a battery drive apparatus with the battery pack of FIG. It is a perspective view which shows the state which removed the connector part from the battery pack of FIG. It is a perspective view which shows the state which charges the battery pack of FIG. It is a disassembled perspective view of the battery pack of FIG. FIG. 6 is a further exploded perspective view of the battery pack of FIG. 5. It is the disassembled perspective view which looked at the battery pack of FIG. 6 from diagonally downward. It is sectional drawing in the VIII-VIII line of the battery pack of FIG. It is sectional drawing in the IX-IX line of the battery pack of FIG. It is sectional drawing in the XX line of the battery pack of FIG. It is a perspective view which shows a connector apparatus. It is the perspective view which looked at the connector part of FIG. 11 from the back side. It is sectional drawing of the connector part of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiment described below exemplifies a connector device for embodying the technical idea of the present invention and a battery pack including the connector device, and the present invention includes a connector device and a battery pack including the connector device as follows. Not specific to anything. Further, in the present specification, in order to facilitate understanding of the scope of claims, numbers corresponding to the members shown in the examples are indicated in the “claims” and “means for solving problems” sections. It is appended to the members shown. However, the members shown in the claims are not limited to the members in the embodiments. In particular, the dimensions, materials, shapes, relative arrangements, and the like of the constituent members described in the embodiments are not intended to limit the scope of the present invention only to the description unless otherwise specified. It is just an example. Note that the size, positional relationship, and the like of the members shown in each drawing may be exaggerated for clarity of explanation. Furthermore, in the following description, the same name and symbol indicate the same or the same members, and detailed description thereof will be omitted as appropriate. Furthermore, each element constituting the present invention may be configured such that a plurality of elements are constituted by the same member and the plurality of elements are shared by one member, and conversely, the function of one member is constituted by a plurality of members. It can also be realized by sharing. In addition, the contents described in some examples and embodiments may be used in other examples and embodiments.
Example 1

  A battery pack 100 using a connector device according to an embodiment of the present invention is shown in FIGS. In these drawings, FIG. 1 is a perspective view showing a battery pack according to Embodiment 1 of the present invention, FIG. 2 is a perspective view showing a state where power is supplied to a battery driving device by the battery pack of FIG. 1, and FIG. The perspective view which shows the state which removed the cable part 50 from the battery pack of FIG. 4, FIG. 4 has each shown the perspective view which shows the state which charges the battery pack of FIG. The battery pack 100 shown in these figures is connected to the battery-driven device BD via a USB cable or the like as shown in FIG. 2 to charge the device-side secondary battery built in the battery-driven device BD. Use as a portable charger. And the connector part 40 pulled out via the cable part 50 comprises a connector apparatus.

  The external appearance of the battery pack 100 is formed by the main body case 10. The main body case 10 is formed in a dome shape in which a corner is chamfered in a square shape in a plan view and an end portion is gradually thinned in a side view. Further, as shown in FIG. 3, a notch 13 is provided at a corner of the main body case 10, and a connector portion 40 is fitted therein to form an integral rectangular appearance. The connector part 40 is connected to the case body via the cable part 50. The connector unit 40 includes an output terminal 41. Further, the battery pack 100 includes a rechargeable secondary battery cell 1 inside, and discharges the secondary battery cell 1 through the output terminal 41 to charge the battery drive device BD. In addition, the main body case 10 is provided with a power supply connector 19 for charging the secondary battery cell 1. The power supply connector 19 is provided in the notch 13 and is exposed by removing the connector 40.

  The connector part 40 is detachable from the case body. When not in use, the connector part 40 is fitted into the notch 13 of the body case 10 as shown in FIG. 1, and is detached from the body case 10 as shown in FIG. The output terminal 41 is connected to the battery drive device BD, and the battery drive device BD is charged. On the other hand, when charging the battery pack 100, with the connector part 40 removed and the power supply connector 19 exposed as shown in FIG. Power is supplied from the power source.

5 to 7 are exploded perspective views of the battery pack 100. FIG. As shown in these drawings, the battery pack 100 includes a secondary battery cell 1, a battery holder 20 that holds the secondary battery cell 1, and a circuit board 30.
(Main body case 10)

  The main body case 10 is formed thin so that its width is larger than its thickness. Further, as shown in FIG. 5, the main body case 10 is divided into an upper case 11 and a lower case 12, and is fixed by screws or the like. The main body case 10 is made of an insulating material. For example, it is made of resin such as polycarbonate. In the main body case 10, the battery holder 20, the secondary battery cell 1, and the circuit board 30 are accommodated.

As shown in the cross-sectional views of FIGS. 8 and 9, the main body case 10 is formed in a dome shape that is curved so that the center protrudes in a side view. By setting it as such a shape, compared with the shape which made the upper surface flat, the rigidity which supports an upper surface can be improved, and the protection of the secondary battery cell 1 accommodated in an inside can be aimed at.
(Battery holder 20)

As shown in FIG. 6, the battery holder 20 has a rectangular frame shape, and stores the secondary battery cell 1 from the upper surface thereof.
(Holder wall 22)

The frame-type battery holder 20 includes a holder wall 22 that covers an end surface of the secondary battery cell 1 in a state where the secondary battery cell 1 is accommodated. It is preferable that the holder wall 22 be at least partially higher than the thickness of the end face of the secondary battery cell 1 in a state where the secondary battery cell 1 is accommodated. The end face of the holder wall 22 is brought into contact with the inner surface of the upper case 11 of the dome-shaped main body case 10 as shown in the cross-sectional views of FIGS.
(Case rib 14)

  Further, on the inner surface of the upper case 11, a case rib 14 for supporting it is provided at a position corresponding to the holder wall 22 of the battery holder 20. The case rib 14 is integrally joined to the holder wall 22 in a state where the battery holder 20 is housed in the main body case 10 to form a battery protection wall.

  In this way, the battery wall is formed by the holder wall 22 of the battery holder 20 and the case rib 14 of the main body case 10, and the secondary battery cell 1 is lifted from the main body case 10. Even if is added, it is possible to protect the secondary battery cell 1 by avoiding a situation in which an impact directly acts on the secondary battery cell 1.

Further, since the main body case 10 is formed in a dome shape as described above, the buffer space 16 is provided between the upper surface of the secondary battery cell 1 and the inner surface of the dome-shaped main body case 10. Even if stress is applied from this point, this portion acts as a buffer layer, and the secondary battery cell 1 can be protected by reducing the impact force. In addition, even if the secondary battery cell 1 expands, deformation of the main body case 10 can be avoided by expanding into the buffer space 16 from the battery holder 20 whose upper surface is opened.
(Secondary battery cell 1)

The secondary battery cell 1 is configured in a rectangular shape that can be stored in the battery holder 20. The secondary battery cell 1 also has a thin outer shape with a width larger than its thickness. Here, as shown in FIG. 6, the planar view of the secondary battery cell 1 is rectangular. The secondary battery cell 1 may be a rechargeable secondary battery such as a lithium ion secondary battery, a lithium polymer battery, a nickel hydride battery, or a nickel cadmium battery. Among them, a lithium ion secondary battery has a large electric capacity with respect to volume and is suitable for downsizing. In addition, charging / discharging of the secondary battery cell 1 is controlled by a power supply control circuit mounted on the circuit board 30. Thereby, the battery pack 100 can supply the power required by the battery-driven device BD.
(Circuit board 30)

  A circuit board 30 is fixed to the lower surface of the battery holder 20. The circuit board 30 is electrically connected to the secondary battery cell 1 and is mounted with a power supply control circuit for controlling charge / discharge of the secondary battery cell 1. Furthermore, the connector part 40 for taking out the output of the secondary battery cell 1 controlled by the power supply control circuit is connected to the outside via a cable part 50.

  The circuit board 30 is arranged on the board arrangement surface 25 opposite to the cell arrangement surface 24 that holds the secondary battery cell 1 of the battery holder 20. On the other hand, the lower case 12 of the main body case 10 is provided with support ribs 15 for supporting the substrate placement surface of the battery holder 20. Here, the thickness of the support rib 15 is made larger than the thickness of the circuit board 30. As a result, not only the secondary battery cell 1 but also the circuit board 30 can be protected from an external impact as being lifted from the main body case 10 by the support ribs 15.

  In addition, the circuit board 30 has electronic components arranged on the board arrangement surface 25 opposite to the inner cell arrangement surface 24 of the battery holder 20. Thus, electronic components can be eliminated from the cell arrangement surface 24 side, and the entire thickness can be reduced accordingly. In particular, as shown in the cross-sectional views of FIGS. 8 and 9, the circuit board 30 is arranged along the bottom surface of the secondary battery cell 1, thereby providing a space between the upper surface of the circuit board 30 and the inner surface of the lower case 12. Since the (board space 17) is provided, the electronic component 31 can be mounted on the circuit board 30. In particular, the board space 17 for mounting the electronic component 31 having a certain height such as an electrolytic capacitor or a coil can be secured, and the necessary electronic component 31 can be mounted while the battery pack 100 is downsized. In addition, the board space 17 can be used as a heat dissipation space for the electronic component 31. In particular, the battery holder 20 has a bottomed box shape, and is configured with a member having insulation and heat insulation properties, thereby suppressing the heat generated in the circuit board 30 from being transferred to the secondary battery cell 1 side, Heat can be radiated into the substrate space 17 provided on the upper surface of the road substrate below.

  The size of the circuit board 30 is not limited to the size of the secondary battery cell 1. That is, the circuit board 30 can be made larger than the secondary battery cell 1. In the example shown in the horizontal cross-sectional view of FIG. 10, the circuit board 30 is made larger than the secondary battery cell 1, and the circuit board 30 is projected outside the battery holder 20. Thereby, the freedom degree of circuit design can be raised. For example, the pressing switch 32 is mounted on the circuit board 30 that protrudes downward from the battery holder 20 in FIG. 10 and is exposed from the upper case 11. With such an arrangement, the push switch 32 can be arranged in the main body case 10 without being interfered by the secondary battery cell 1. Further, the circuit board 30 is projected also on the upper side of the battery holder 20, and the end of the cable portion 50 is mounted thereon. In particular, as will be described later, the cable portion 50 is formed as a flat cable (slip shape having a constant width), so that it can be guided on the circuit board 30 without interfering with the battery holder 20 without twisting the cable portion 50. The electrical connection can be made easily without being done.

  In this way, the circuit board 30 can be stacked in a posture that does not partially overlap the secondary battery cell 1. In such a non-overlapping region, members can be arranged not only on the substrate arrangement surface 25 but also on the same side as the cell arrangement surface 24. For example, as described above, it is possible to provide the push switch 32 partially exposed to the outside. In this way, the push switch 32 and the like can be efficiently arranged using the space around the secondary battery cell 1.

Thus, each member can be efficiently arranged using the space of the main body case 10 generated around the secondary battery cell 1 while the secondary battery cell 1 is arranged in the main body case 10. In the example of FIG. 10, the secondary battery cell 1 is arranged not at the center of the main body case 10 but at an eccentric position, thereby securing a space for arranging members such as the power supply connector 19.
(Connector 40)

  The connector part 40 is connected to the main body case 10 via the cable part 50. The connector part 40 is detachably attached to a notch part 13 formed at one corner of the main body case 10. The outer shape of the connector part 40 is formed in a shape that forms a part of the main body case 10 in a state where the connector part 40 is attached to the cutout part 13, in other words, in the same shape as the other corners of the main body case 10. Here, the planar view is a right-angled triangle shape, the side view is a parabolic shape, a plane orthogonal to the joint surface with the notch 13, and the other surface is a curved surface.

  Moreover, the connector part 40 is provided with the output terminal 41 for connecting with battery drive apparatus BD. On the other hand, the body case 10 has a terminal insertion hole 18 into which the output terminal 41 is inserted with the connector portion 40 attached. By doing so, as shown in FIG. 3, when the connector part 40 is not used, the output terminal 41 can be inserted into the terminal insertion hole 18 and the connector part 40 can be locked to the main body case 10. That is, it can also be used as a physical connection structure for connecting the connector portion 40 to the main body case 10. Here, a connection body 42 formed to be slightly larger than the output terminal 41 is formed at a joint portion between the output terminal 41 and the cable portion 50, and the connection body 42 is inserted into the terminal insertion hole 18 to be connected to the cable. The part 50 is configured to be locked to the main body case 10. By doing in this way, it avoids that the surface of the output terminal 41 for electrical connection touches the terminal insertion hole 18 directly, and prevents the surface of the output terminal 41 from being damaged.

Further, the main body case 10 is provided with a power supply connector 19 at the notch 13. Here, the notch 13 has a corner portion of the main body case 10 cut out in an L shape in cross-sectional view, and the terminal insertion hole 18 is formed in one L-shaped notch surface (first notch surface 13a). The power supply connector 19 is provided on the other notch surface (second notch surface 13b). Thus, by providing the terminal insertion hole 18 and the power supply connector 19 on different surfaces, these opening portions can be efficiently arranged in the main body case 10 without increasing the outer shape of the main body case 10. Moreover, since the notch part 13 is obstruct | occluded at the time of mounting | wearing with the connector part 40, and is not exposed outside, an opening part is made invisible at the time of non-use, and an external appearance can be cleared and appearance can be improved. In addition, by closing the opening, entry of foreign matter such as dust and dirt can be prevented. In other words, the connector portion 40 can be used as a cover for the power supply connector 19.
(Cable 50)

  The cable part 50 has one end fixed to the main body case 10 and the other end fixed to the connector part 40. On the main body case 10 side, it is electrically connected to the circuit board 30, and the output power of the secondary battery cell 1 is supplied from the output terminal 41 of the connector portion 40. The cable portion 50 is formed of a flexible member, and can be bent and twisted freely to easily connect the connector portion 40 drawn from the main body case 10 to the battery-driven device BD. In the example of FIG. 3, the cable is formed in a slip shape (referred to as a flat wire, a flat cable, etc.), and when the connector portion 40 is attached to the main body case 10, it is bent along the side surface of the main body case 10. Thus, the cable portion 50 is brought into close contact with the main body case 10. That is, the length that the cable portion 50 is exposed to the outside of the main body case 10 is a length corresponding to the distance from the lead-out portion to the cutout portion 13. Thereby, the cable part 50 does not collide with the connector part 40 mounted on the main body case 10, and the appearance can be made clear. Further, a cable groove 52 into which the cable part 50 can be inserted is provided on the side surface of the main body case 10 to guide the cable part 50 to be inserted along the cable groove 52 so that the cable part 50 is in a positioning state. It can be stored and the appearance can be further simplified.

  Moreover, the situation where the output terminal 41 is erroneously inserted into the power feeding connector 19 can be avoided by minimizing the length of the cable portion 50. That is, in the example of FIG. 3, the shape of the power supply connector 19 and the shape of the output terminal 41 are the same, but the output terminal 41 is physically inserted into the power supply connector 19 by shortening the length of the cable portion 50. It is impossible to prevent erroneous insertion and improve safety.

Further, the end edge of the cable portion 50 is connected to the circuit board 30 in the main body case 10. Here, it is preferable to arrange the cable portion 50 so as to be wound in a parallel posture without twisting as much as possible so as not to cause a load or disconnection to the internal electric wire due to excessive twisting or bending with a small radius of curvature. . For this reason, as shown in the horizontal sectional view of FIG. 10, the cable portion 50 is drawn out from the main body case 10 so as to be wound around the upper case 11 and the lower case 12 by using a boss. doing. In addition, after winding, the cable rib 50 is bent into a U-shape and the cable portion 50 is sandwiched, whereby the resistance to pulling at the base portion of the cable portion 50 with the main body case 10 can be enhanced.
(Cable bending suppression mechanism)

  In addition, a cable bending suppression mechanism is also provided on the front end side of the cable portion so that excessive fatigue does not occur due to bending of the cable portion 50 at a portion fixed to the cable portion 50. Details of this structure are shown in FIGS. In the connector section 40 shown in these drawings, a connector main body 43 for fixing a cable has a first connector plane 44 and a second connector plane 45. The first connector plane 44 and the second connector plane 45 are substantially orthogonal, and are joined to the first cutout surface 13a and the second cutout surface 13b of the main body case 10 with the main body case 10 mounted in the cutout portion. . The back surfaces of the first connector plane 44 and the second connector plane 45 are curved oval. Furthermore, an output terminal 41 is provided on the first connector plane 44 via a connection body 42.

On the other hand, a semicircular opening end is provided on the rear end side of the second connector plane 45 (right side in the sectional view of FIG. 13). On the inner surface of the open end, a lead surface 46 substantially parallel to the first connector plane 44 is formed, and the cable portion 50 is pulled out in an inclined posture from the lead surface 46. Further, a curved surface that is curved so as to cover the drawing surface 46 is formed on the inner surface of the opening end. The curved surface of the semicircular opening end is formed in a mortar shape. In other words, the rear end side of the second connector plane 45 is provided with a lead-out surface 46 parallel to the first connector plane 44 and a cable guide portion 47 that is curved so as to cover the lead-out surface 46. ing. The cable guide portion 47 is continuously formed on the same surface as the egg-shaped outer surface of the connector body 43, and the inner surface of the cable guide portion 47 is projected in an inclined posture from the pull-out surface 46, and the cable portion 50 on the pull-out surface 46. The curved surface extends beyond the cross section. In this way, the cable guide portion 47 bends the inner surface thereof, surrounds the drawing surface 46 in a semicircular shape, and pulls out the cable portion 50 from the open end of the semicircular shape. By being restricted by the portion 47, bending fatigue at this portion can be reduced.
(Cable guide 47)

  The edge on the inner surface side of the cable guide portion 47 is preferably chamfered. As a result, even if the cable portion 50 is forced to be bent toward the cable guide portion 47, it is possible to reduce the situation where stress is concentrated on the cable portion 50 due to the edge of the edge of the cable guide portion 47. In addition, the cable guide portion 47 is preferably formed of a flexible member. As a result, when the cable portion 50 is bent toward the cable guide portion 47, the outer peripheral portion of the cable guide portion 47 bends and stress is dispersed, so that bending fatigue at this portion can be further reduced.

In the example of FIGS. 11 to 13, the cable guide portion 47 is molded integrally with the connector main body 43. Therefore, the connector main body 43 itself is formed of a flexible member. In this case, since the connection body 42 is also flexible, it can be easily maintained in a fixed state by elasticity when inserted into the terminal insertion hole 18. The flexible connector main body 43 can be made of, for example, an elastomer.
(Bank 48)

  Further, a bank portion 48 can be formed in a region where the cable portion 50 is bent at a boundary portion between the lead-out surface 46 and the second connector plane 45. The bank portion 48 is formed as the same plane as the lead-out surface 46 and extends from the edge of the lead-out surface 46 and the second connector plane 45. By doing in this way, the situation where stress concentrates on the edge of the edge of the drawer | drawing-out surface 46 and the 2nd connector plane 45 at the time of bending a flat cable to the 2nd connector plane 45 side can be avoided. Moreover, it is preferable that the edge of the bank part 48 which contacts the cable part 50 is also chamfered. As a result, a further stress relaxation effect can be obtained.

  In addition, the bank portion 48 can also be used as a locking tool when the connector portion 40 is attached to the notch portion 13. For example, as shown in FIG. 3, a recessed portion 53 is provided at a position corresponding to the bank portion 48 in the second notch surface 13 b. The recessed portion 53 is provided in a portion extended from the cable groove 52, and the bank portion 48 is inserted into the recessed portion 53, so that the recessed portion 53 can be used as a locking tool for attaching the connector portion 40 to the notch portion 13. In particular, by configuring the connector portion 40 with a flexible member as described above, the bank portion 48 can be fitted into the recessed portion 53 to enhance the holding effect.

  Furthermore, it is preferable that the conductive wire embedded in the cable portion 50 is an earphone wire. The earphone wires are arranged in parallel in the cable portion 50, and a plurality of earphone wires are connected in parallel. Thereby, the bending strength of the cable part 50 can further be improved. Moreover, reliability and conductivity are improved by using the earphone wire, and a large current can be taken out.

  A connector device according to the present invention and a battery pack provided with the connector device are connected to the edge of a flat cable drawn from a battery pack that can be connected to a battery-driven device such as a slate PC, a smartphone, or a portable recording device. Can be suitably used.

DESCRIPTION OF SYMBOLS 100 ... Battery pack 1 ... Secondary battery cell 10 ... Main body case 11 ... Upper case 12 ... Lower case 13 ... Notch part; 13a ... First notch surface; 13b ... Second notch surface 14 ... Case rib 15 ... Supporting rib 16 ... Buffer space 17 ... Board space 18 ... Terminal insertion hole 19 ... Power feeding connector 20 ... Battery holder 22 ... Holder wall 24 ... Cell placement surface 25 ... Board placement surface 30 ... Circuit board 31 ... Electronic component 32 ... Press switch 40 ... Connector Portion 41 ... Output terminal 42 ... Connector 43 ... Connector body 44 ... First connector plane 45 ... Second connector plane 46 ... Lead surface 47 ... Cable guide portion 48 ... Bank portion 50 ... Cable portion 52 ... Cable groove 53 ... Recess BD ... Battery drive equipment

Claims (10)

A connector device for fixing a flat cable,
A connector body for fixing the cable;
A pull-out surface for pulling out the flat cable in an inclined posture from the connector body;
A cable guide portion extending in an inclined posture from the drawing surface so as to cover the periphery of the flat cable drawn from the drawing surface, and extended beyond the cross section of the flat cable on the drawing surface;
With
The connector device is characterized in that the cable guide portion has an inner surface curved to surround the drawing surface in a semicircular shape, and a flat cable is drawn out from the semicircular opening end. The connector device according to claim 1,
The connector body has a second connector plane perpendicular to the lead-out surface;
In the boundary portion between the lead-out surface and the second connector plane, at least in the region where the flat cable is bent, a bank portion extended from the lead-out surface is formed,
The connector device according to claim 1, wherein an edge of the bank portion that contacts the flat cable is chamfered. The connector device according to claim 1 or 2,
The cable guide portion is configured by a member having flexibility. The connector device according to claim 3,
The cable guide part is molded integrally with the connector body,
The connector device is characterized in that the connector body is made of an elastomer. The connector device according to any one of claims 1 to 4,
The cable guide portion has a semicircular opening end formed in a mortar shape. The connector device according to any one of claims 1 to 5, further comprising:
A flat cable fixed to the drawer surface;
The flat cable has a wire rod as an earphone wire, and a plurality of earphone wires arranged in parallel in the flat cable are connected in parallel. A battery pack comprising the connector device according to any one of claims 1 to 6,
A secondary battery cell having a rectangular outer shape;
A circuit board connected to the secondary battery cell;
A body case for housing the secondary battery cell and the circuit board;
A cable portion connecting the main body case and the connector device;
With
The connector device is detachable from the main body case,
A battery pack provided with a connector device, wherein the connector device is connected to a battery-driven device so that power can be supplied to a device-side secondary battery built in the battery-driven device. A battery pack comprising the connector device according to claim 7,
The connector device includes an output terminal for connection to a battery-driven device to be fed;
A battery pack including a connector device, wherein the main body case is formed with a terminal insertion hole for inserting the output terminal in a state where the connector device is mounted. A battery pack comprising the connector device according to claim 7 or 8,
The main body case is provided with a cutout portion in which a portion for connecting the connector device is cut out,
A battery pack provided with a connector device, wherein the connector device is formed so as to have an external appearance integrated with the main body case in a state where the connector device is mounted in a notch portion of the main body case. A battery pack comprising the connector device according to any one of claims 7 to 9,
The main body case includes a power supply connector for supplying power to the secondary battery cell,
A battery pack provided with a connector device, wherein the power supply connector is closed by the connector device in a state where the connector device is mounted on a main body case.

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