JPH0555445U - Battery case - Google Patents

Abstract

(57) [Abstract] [Purpose] Even when the battery is lifted by the urging force from the bottom terminal fitting to the battery and force is applied to the lid side terminal fitting, contact with the battery due to deformation of the lid side terminal fitting. To provide a battery housing case capable of preventing defects. A battery housing case includes a battery housing having electrodes at both ends and a battery housing chamber having a bottom terminal metal fitting in a bottom portion which is in elastic contact with one of the both end electrodes, and has a box body 10 having one open end. The lid body 20 is a lid body that covers the opening so as to be openable, and the lid body 20 has a lid-side terminal metal fitting on the inner surface, which is in elastic contact with the other end electrode of the battery housed in the battery housing chamber. The lid-side terminal fitting 40 has a support portion supported on the inner surface of the lid body 20. Further, the lid-side terminal fitting 40 has elastic contact portions 42 and 45 extending from this support portion and contacting the other electrode on the surface. Further, the lid body 20 includes first stopper portions 21a, 21b, 2 which oppose the back surfaces of the elastic contact portions 42, 45 of the lid-side terminal fitting 40.
1c and 25, and 2nd stopper part 33a, 35, 38 which opposes the edge of the said battery.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a battery housing case used as a portable DC power supply.

[0002]

[Prior Art]

 Conventionally, as a battery housing case, the one shown in each cross-sectional view of FIG. 9 is known (see Japanese Utility Model Laid-Open No. 1-145053). FIG. 9 shows in sequence the operation of storing and pulling out a battery in a conventional battery storage case. The battery housing case shown in FIG. 9 includes a case 101 and a lid 110 fitted and attached to the case 101. The case 101 has an upper surface plate 105b in the front part in the battery insertion direction and forms a battery storage groove 104b, and the rear part of the battery storage groove 104b in the battery insertion direction is open. A battery contact fitting 106b is provided on the upper surface side of the battery storage groove 104b. Further, a rib 108b is provided in the battery storing groove 104b on the other end side opposite to one end where the battery contact fitting 106b of the case is provided. The lid 110 is rotatably provided with one side edge of the case 101 on the front side in the battery insertion direction as a fulcrum, and a battery contact metal fitting 111b is provided on an edge of the lid 110 on the free end side. It As shown in FIG. 9, when the battery 107b is stored in the battery storage groove 104b, this battery storage case is brought into contact with one pole of the battery to be inserted by the battery contact metal fitting 106b and is moved to the rear side in the battery insertion direction. The elastic force is applied and the rib 108b prevents the battery 107b from being pulled out. Further, as shown in FIG. 9, when the case 101 and the lid 110 are fitted together, the battery contact fitting 111b contacts the other side of the battery 107b. On the other hand, as shown in FIG. 9, when the case 101 and the lid 110 are separated from each other, as shown in FIG. 9, the battery contact fitting 111b provided on the lid 110 pulls out the battery 107b from the battery storage groove 104b.

[0003]

[Problems to be solved by the device]

 However, in the above-described conventional battery housing case, when the case 101 and the lid 110 are separated from each other and the battery is pulled out as shown in FIG. 9, the engagement between the battery end portion and the rib 108b is released. At this time, a force is applied to the contact fitting 111b from the battery electrode end by the elastic bias from the contact fitting 106b. When this force is large, the contact fitting 111b is further bent inward, and when the battery is stored again. In this case, a gap is created between the contact metal fitting 111b and the end of the battery, or the position corresponding to the end of the electrode is displaced, making it difficult to make contact, making it difficult to pull up the battery described above. In addition, there are drawbacks such as poor contact between the contact terminal and the battery electrode.

Therefore, the technical problem of the present invention is that the pressing metal fitting is deformed even when the battery is lifted by the urging force of the pressing metal fitting on the bottom portion to the battery when the battery is housed and the pressing metal fitting is subjected to force. It is to provide a battery housing case that can prevent poor contact with the battery.

[0005]

[Means for Solving the Problems]

 According to the present invention, a box body having one end opened is provided with a battery containing chamber having electrodes at both ends, and a battery containing chamber having a bottom terminal metal fitting at the bottom for elastically contacting one of the both-end electrodes, and the opening. A battery housing case having a lid body for releasably opening a portion, the lid body having an inner surface with a lid-side terminal metal fitting elastically contacting with the other of the both end electrodes of the battery housed in the battery housing chamber, The lid-side terminal metal fitting has a support portion supported on the inner surface of the lid body, and an elastic contact portion extending from the support portion and contacting the other electrode on the surface thereof. A battery housing case is obtained which has a first stopper portion that opposes the back surface of the elastic contact portion of the lid-side terminal fitting, and a second stopper portion that opposes the edge of the battery.

[0006]

[Action]

 In the present invention, the battery housed in the housing chamber is elastically biased toward the lid by the terminal fitting on the bottom. On the other hand, from the lid side, the elastic contact portion of the lid-side terminal fitting elastically urges the battery toward the bottom, canceling out the elastic force from the bottom terminal fitting.

However, if the elastic biasing force from the terminal fitting on the bottom is large, the battery is pushed up to the lid side against the elastic force of the elastic contact portion of the lid-side terminal fitting, but the lid-side terminal fitting of the lid body is pushed. The first stopper portion provided at a position opposed to the back surface of the elastic contact portion further prevents the lid side terminal fitting from moving toward the lid side. When the force pushing the battery toward the lid side is stronger, the battery rises further toward the lid side, but its movement is blocked by the second stopper portion of the lid body that is located at a position facing the edge of the battery. To be done. Therefore, even if the elastic force from the bottom terminal fitting to the battery is strong, deformation of the elastic contact part of the lid side terminal fitting is prevented, and there is no risk of contact failure.

[0008]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a battery housing case according to an embodiment of the present invention. 2 (a) is a sectional view of the battery housing case of FIG. 1, FIG. 2 (b) is a front view, FIG. 2 (c) is a side view, FIG. 2 (d) is a top view, and FIG. 2 (e) is a bottom view. Fig. 2 (f) is a rear view of a partial cross section of Fig. In FIG. 1, a battery housing case 1 is provided with a box body 10 having an opening at the upper end and having a battery housing chamber for housing dry batteries from the opening, and a lid body 20 covering the opening of the box body 10. ing. As shown in FIG. 2 (a), inside the battery housing chamber 17 of the box body 10, the bottom of the battery container 17 is inclined toward the lid so as to come into contact with one electrode end of the battery, and the electrode of the battery is inserted when the battery is inserted. Bottom terminal metal fittings 4 and 5 that are elastically urged toward the lid side by contacting the bottom terminal metal fittings are provided. As shown in FIG. 2 (e), the bottom terminal metal fittings indicated by the same reference numerals are connected to each other. There is. Returning to FIG. 2A, a central wall 6 is provided in the battery accommodating chamber of the box body 10, and guide pieces 7 for preventing swinging of the accommodated battery are provided on both sides of the central wall 6 and the box. They are provided on the body wall, respectively. In addition, at the upper end of the battery accommodating chamber of the box body 10, in order to guide the battery, a guide portion 12, which is formed along the peripheral surface of the battery and protrudes toward the inside of the battery accommodating chamber 17 so as to face each other, 12 are formed. As shown in FIG. 2B, an engaging piece 11 for locking the lid 20 when the lid 20 is closed is provided on the front surface of the box 10, and the front end of the box is recessed downward. As shown in FIG. 2 (d), the lid 20 has a hollow front portion, and a protrusion 21 is provided at the tip thereof. In addition, an engagement piece 11 that engages with the protrusion 21 of the lid 20 is formed at the upper end of the box body 10. As shown in FIG. 2 (b), the engagement piece 11 of the box body 10 is formed by cutting in parallel from the end portion downward, and a protrusion of a lid body 20 described later is formed in the center portion thereof. It has an engaging hole 11a for engaging with the piece. As shown in FIG. 2 (a), the rear of the box body 10 extends up to above the lid body 20, and as shown in FIG. 2 (d), the end surface of the box body 10 is covered by the lid body 20. The hinges 2 and 2 are formed so as to be sandwiched by the end portions 20a on both sides, and the lid body 20 is formed to be rotatable around the rear end side 10a. As shown in FIG. 2 (e), external terminals 15 and 16 made of L-shaped metal pieces inserted in grooves 13 and 14 connected to the back surface are provided behind the bottom of the box body 10 as described later. ing. Further, in FIG. 2F, external terminals 15 and 16 are provided extending from the bottoms in the grooves 13 and 14 continuous from the bottom shown in FIG. 2E.

FIG. 3 is a view showing a state where the lid of the battery housing case of FIG. 1 is released. In FIG. 3, the lid body 20 is provided with three series of lid side terminal fittings 40 and a fixing plate 30 for fixing the terminal fittings 40 to the inside of the lid body from above. Note that one of the lid-side terminal fittings 40 has been removed to make the drawing easier to see.

FIG. 4 (a) is a plan view showing an inner portion of the lid of the battery housing case of FIG. 1, FIG. 4 (b) is a front view of the lid shown in FIG. 4 (a), and FIG. 4) is a top view of the lid shown in FIG. 4A, FIG. 4D is a side view of the lid shown in FIG. 4A, and FIG. 4E is a lid shown in FIG. 4A. 4A is a cross-sectional view taken along the line AA of FIG. 4, FIG. 4F is a rear view of the lid body shown in FIG. 4A, and FIG. 4G is a line BB line of the lid body shown in FIG. 4A. FIG.

As shown in FIG. 4A, a recess 26 is formed at the upper end of the lid 20, and a protrusion 23 is formed continuously from the recess 26. Further, the protrusions 29 and 29 are provided on both sides of the protrusion 26 ′ formed so as to protrude by the recess 26 inside the protrusion 23. At the lower end, projecting portions 2a, 2a that face each other and form a hinge protruding inward are provided so as to face each other. The inside of the lid 20 has a first supporting portion 21 which is a cross-shaped protruding piece, and a second supporting portion 22 which is a protruding piece that connects one end of the first supporting portion 21 in the width direction. The second support portions 22 each have a protruding piece 22 'formed so as to protrude downward on the hinge side, that is, in the drawing. Protrusions 21a, 21b, and 21c are provided at intersections of the crosses of the respective first support portions 21. Further, projections 22a, 22b, 22c are also provided at the portions corresponding to the starting points of the projecting pieces 22 'of the second support portion 22, respectively. A first stopper portion 24, which is continuously provided along the width direction on the hinge side, that is, the lower side in the figure with respect to these support portions 21 and 22, and stands up from the lid portion at the same height, and further below this. Further, there are provided engagement pieces 28 which are continuously provided in parallel with this in the width direction, stand up from the lid portion at the same height, and have their tips protruding upward. These engaging pieces 28 are reinforced by a reinforcing portion 28a.

FIG. 5 is a view showing the lid-side terminal fitting 40 attached to the lid shown in FIG. In FIG. 5, the lid-side terminal fitting 40 has holes 41a, which are respectively inserted into the protrusions 21a, 21b, 21c of the first support portion 21 and the protrusions 22a, 22b, 22c of the second support portion 22 of the lid body. T-shaped lid-side terminal metal fitting support portion 41 having ends 41b and 41c and a first elastic contact portion 42 which is narrowed in width and bent sharply at the end thereof are formed. ， Bent on the side of the supporting part to make contact with the positive electrode end of the battery. On the other hand, on the opposite side of the first elastic contact portion 42, the width is slightly narrower than that of the T-shaped upper portion, and it is bent and extended so as to form an obtuse angle with respect to the lid side terminal metal fitting support portion 41. An existing second elastic contact portion 45 is formed, and its tip 46 is narrow and bent so as to come into contact with the negative electrode end of the battery. Other lid side terminal fittings provided on the lid have the same shape.

FIG. 6 is a view showing a fixing plate for fixing the terminal fitting 40 of FIG. 5 to the inside of the lid body 20, FIG. 6 (a) is a plan view of the fixing plate 30, and FIG. 6 (b) is a fixing plate. 30 is a bottom view of the fixed plate 30, FIG. 6C is a front view of the fixed plate 30, and FIG. 6D is a side view of the fixed plate 30. 6 (a), (b), (c), and (d), the fixed plate 30 includes a first plate body 33 having standing pieces 33a standing upright from the plate surface at both ends, and the first plate body 33. The first plate body 33 is provided with a second plate body 37 integrally formed with the first plate body 33 so as to form a step with the end portions of one surface of the body 33 being overlapped. The first plate body 33 is provided with a standing piece 38 standing side by side on both sides and a line connecting the two, and constitutes a second stopper portion together with the standing piece 33a. A projecting portion 32 extends upward from the upright piece 36 of the first plate 33, and the tip of the projecting portion 32 is formed with round cut grooves 32a, 32a. When the metal fixture fixing plate 30 is mounted on the inside of the lid, the cut grooves 32a, 32a engage with the protrusion 29 (see FIG. 4) formed on the inside of the lid. Further, a through hole 39 penetrating the plate surface is provided along the edge of the second plate body 37 on the first plate body 33. Further, between the lower left and right sides of the first plate 33 and the projecting portion 32, grooves 33b and 33c which engage with the projecting portions 21a and 21b (see FIG. 4) are respectively provided.

On the other hand, the lower surface of the second plate body 37 is formed along the first plate body 33 and extends in the direction opposite to the protruding portion 32 and outside the first plate body. In the figure of the first plate body, a standing piece 34 standing upright on the back side of the first plate body, and at the tip of the rising piece 34, a second plate body is formed. In the figure, a standing piece 35 is provided on the front side surface, which forms a second stopper portion standing upright. The tip of the protruding portion 31 of the fixing plate 30 is fixed to the inside of the lid by engaging with the engaging portion 28 of the lid when mounted on the inside of the lid.

FIG. 7 is a diagram showing an operation for fixing the lid-side terminal fitting shown in FIG. In FIG. 7, after inserting the holes 41a, 41b, 41c of the terminal fitting 40 into the protrusions 21c, 22a, 22b, 21a, 22a, 22b, or 21b, 22c, 22c protruding inward from the lid, Insert the notches and holes 33b, 33c, 39 into the protrusions 21a, 21b, 21c, 22a, 22b, 22c that penetrate the metal fixture fixing plate 30 into the terminal fixture 40, and also the tip 32a of the fixture fixing plate 30, When the projections 29 of the lid portion 20 are combined with each other and the tip of the protruding portion 31 is elastically inserted into and engaged with the engagement portion 28 of the lid body, the lid body 20 is configured as shown in FIG.

FIG. 8 is a diagram for explaining the operation of the terminal fitting 40 shown in FIG. 5. FIG. 8A shows a state in which the battery is not inserted in the battery accommodating chamber, and FIG. Fig. 8 (c) shows the battery pushing up the lid side terminal metal fittings. Fig. 8 (d) shows that the battery has more lid side terminals than Fig. 8 (c). It is a figure which shows the state which is pushing up the metal fittings. When the battery is not inserted as shown in FIG. 8A, the first and second elastic contact portions 42 and 45 of the lid-side terminal fitting 40 extend downward. When the battery 50 is inserted, an elastic force acts from the terminal fitting (not shown) on the bottom of the box body 10 to the lid side, that is, upward in the figure, and pushes the battery 50 to the lid side (upward in the figure). Due to this force, the first and second elastic contact portions 42, 45 of the lid terminal metal fitting are bent outward, upward in the figure, and as shown in FIG. When it is balanced with the elastic force of, stop.

Here, when the elastic force from the bottom terminal metal fitting is relatively small, as shown in FIG. 8C, the first elastic contact portion 42 and the second elastic contact portion 42 of the lid terminal metal fitting are The parts are bent upward, but when they are bent, the first stopper parts 21a prevent the respective parts from moving toward the lid side. Further, when the elastic force from the bottom terminal metal fitting is further increased, the first and second elastic contact portions 42 and 45 of the terminal metal fitting are further curved upward, but as shown in FIG. Since the edge of the battery 50 is prevented from rising by the second stoppers 35 and 38 formed at the positions facing the edge, the rise of the first and second elastic contact portions 42 and 45 is prevented. This prevents contact failure due to deformation and separation of the lid side terminal fitting tips 43 and 46 from the electrodes at the battery end.

[0019]

[Effect of the device]

 As described above, according to the present invention, even if the battery is lifted by the elastic urging force from the bottom terminal metal fitting to the battery and the force is applied to the lid side terminal metal fitting, the deformation is within the elastic deformation area. Therefore, it is possible to provide a battery housing case that can prevent gaps between both electrodes of the battery due to deformation of the lid-side terminal metal fittings, and prevent contact failure due to misalignment with the battery electrodes. it can.

[Brief description of drawings]

FIG. 1 is a perspective view showing a battery housing case according to an embodiment of the present invention.

2A is a sectional view of the battery housing box of FIG. 1, FIG. 2B is a front view, FIG. 2C is a side view, FIG. 2D is a top view, and FIG. f) is a rear view.

FIG. 3 is a diagram showing a state in which a lid of the battery housing case of FIG. 1 is released.

FIG. 4 is a view showing a lid portion of the battery housing case of FIG.
(A) is a plan view showing the inside, (b) is a front view of the lid shown in (a), (c) is a top view of the lid shown in (a), (d).
Is a side view of the lid body shown in (a), (e) is a cross-sectional view taken along the line AA of the lid body shown in (a), (f) is a rear view of the lid body shown in FIG. 4 (a), (G) is sectional drawing which follows the BB line of the cover body shown to (a).

5 is a perspective view showing a terminal fitting of the battery housing case of FIG. 3. FIG.

FIG. 6 is a view showing a fixing piece for fixing the terminal fitting, (a)
Is the lower surface of the fixed piece 30, (b) is the upper surface of the fixed piece 30,
(C) is a front view of the fixed piece 30, and (d) is a side view of the fixed piece 30.

FIG. 7 is a diagram showing a method of assembling a terminal fitting on a lid.

FIG. 8 is a diagram for explaining the operation of the terminal fitting 40,
8A shows a state in which the battery is not inserted, FIG. 8B shows a state in which the battery is normally inserted, FIG. 8C shows a state in which the terminal fitting is pushed upward by the battery, and FIG. c)
FIG. 4 is a diagram showing a state in which a terminal fitting is pushed up by a battery.

FIG. 9 is a diagram sequentially showing an operation of storing and pulling out a battery in a conventional battery storage case.

[Explanation of symbols]

2 Hinge 2a Projection part 4,5 Bottom terminal metal fitting 6 Center wall 10 Box body 11 Engaging piece 12 Guide part 13,14 Groove 15,16 External terminal 20 Lid body 21 First support part 21a, 21b, 21c Projection part ( 1st stopper part) 22 2nd support part 22a, 22b, 22c Projection part 23 Projection part 24a, 28a Reinforcement part 25 Standing piece (1st stopper part) 28 Engagement part 29 Projection part 30 Metal fitting fixing plate 32 Projection part 32a Notch groove 33a, 35, 38 Standing piece (second stopper portion) 33 First plate body 33b, 33c Notch groove 34 Standing piece (for support) 37 Second plate body 39 Through hole 40 Lid-side terminal metal fitting 41 Support portion 42 1st elastic contact part 43,46 Tip part 45 2nd elastic contact part

Claims (1)

[Scope of utility model registration request] 1. A box body having an open end, which has a battery housing chamber having a battery having electrodes at both ends and a bottom terminal metal fitting which is in elastic contact with one of the electrodes at both ends, and a box body having the opening portion. A lid for releasably covering the lid, wherein the lid has a lid-side terminal metal fitting on the inner surface, which is in elastic contact with the other of the electrodes at both ends of the battery contained in the battery containing chamber. The side terminal fitting has a support portion supported on the inner surface of the lid body, and an elastic contact portion extending from the support portion and contacting the other electrode on the surface, and the lid body is provided on the lid side. The first that opposes the back surface of the elastic contact portion of the terminal fitting
And a second stopper portion that opposes the edge of the battery.