CN111341988A - Button battery box - Google Patents

Abstract

The invention discloses a button battery box, comprising a terminal assembly, a bottom case, and a top cover, wherein the terminal assembly is arranged in the bottom case; a first enclosing part and a first contact elastic sheet, the bottom case includes a first fixing post, the first enclosing part encloses the first fixing post, and the first contact elastic sheet is electrically connected with the annular side surface of the positive shell of the button battery. By setting the external part, the button battery box can be easily plugged in to supply power to the outside.

Description

A button battery box

technical field

The invention relates to the field of battery boxes, in particular to a battery box applied to a button battery.

Background technique

With the miniaturization of electrical equipment, button batteries have become a common phenomenon as a power source. However, the battery box used to install the button battery is usually connected by wiring or built into the electrical equipment, which is inconvenient for the installation and replacement of the button battery.

SUMMARY OF THE INVENTION

In view of the above technical problems, the present invention provides a button battery box, including a terminal assembly, a bottom case, and a top cover, the top cover is movably connected to the bottom case, and the terminal assembly is arranged in the bottom case , the bottom case is provided with an accommodating groove, the accommodating groove is used for accommodating a button battery, the terminal assembly includes a positive terminal, and the positive terminal sequentially includes a positive external part, a bending part, a first surrounding part and a first surrounding part. A contact elastic piece, the bottom case includes a first fixing column, the first surrounding part surrounds the first fixing column, and the first contact spring piece is electrically connected to the annular side surface of the positive shell of the button battery.

Further, the bending portion and the first surrounding portion together surround the first fixing column.

Further, the positive terminal further includes a crossbar portion, a second surrounding portion and a second contact elastic piece, and two ends of the crossbar portion are respectively connected to the first surrounding portion and the second surrounding portion, so the second contact elastic sheet is connected with the second surrounding part; the bottom case includes a second fixing column, the second surrounding part surrounds the second fixing column; the second contact elastic sheet, the cross bar part Both are electrically connected to the annular side surface of the positive shell of the button battery.

Specifically, the bending portion sequentially includes a connecting front section, a bending middle section, and a connecting rear section, and the connecting front section and the connecting rear section are perpendicular to each other.

Further, the bottom edge of the first surrounding portion is extended to form the connection rear section, and the connection front section and the connection rear section are coplanar.

In another optimization, the side edges of the first enclosing part are bent and extended to form the connection rear section, and the connection front section is located on the normal plane of the connection rear section.

Further, the bending middle section includes a direction change section and a vertical section, the direction change section is formed by extending the connection rear section, and the direction change section and the connection rear section intersect at an obtuse angle; The segment is folded outward, the other end of the direction-changing segment is connected with the vertical segment, and the orthographic projections of the vertical segment and the connected segment are perpendicular to each other.

Further, the obtuse angle is 135 degrees.

In another optimization, one end of the top cover is provided with a clamping claw, one end of the bottom case is provided with a cylindrical rod, and the clamping claw is clamped on the cylindrical rod; the other end of the bottom case is provided with a plug-in connection The terminal assembly includes a negative terminal, the negative terminal includes a negative external part, and the positive and negative external parts are arranged in the plug-in part.

Further, the other end of the top cover is provided with two symmetrical toggle elastic buckles, the bottom case is provided with a snap groove, and the toggle elastic snaps are arranged in cooperation with the snap grooves.

The beneficial effects of the present invention are as follows: in the first aspect, the external parts of the positive and negative terminals are arranged on the plug-in part outside the bottom case, which can conveniently realize the external plug-in power supply of the button battery box; in the second aspect, both the positive and negative terminals are provided with The bottom case and the positive terminal are electrically connected to the annular side surface of the positive case of the button battery, which can further compress the thickness of the button battery box; thirdly, the positive terminal and the button battery are electrically connected in multiple places to improve the reliability of the electrical connection.

Description of drawings

Fig. 1 is the exploded schematic diagram of the button battery box of the present invention;

Fig. 2 is the top surface schematic diagram of the top cover of the present invention;

3 is a schematic front view of the first embodiment of the bottom case of the present invention;

4 is a schematic diagram of the back of the first embodiment of the bottom case of the present invention;

5 is a schematic front view of the second embodiment of the bottom case of the present invention;

6 is a schematic diagram of the first embodiment of the positive terminal of the present invention;

7 is a schematic diagram of a second embodiment of the positive terminal of the present invention;

8 is a schematic diagram of the third embodiment of the positive terminal of the present invention and its flattening;

FIG. 9 is a schematic diagram of the second embodiment of FIG. 7 when it is flattened;

10 is a flattened schematic diagram of the fourth embodiment of the positive terminal of the present invention;

11 is a perspective view of the negative terminal of the present invention;

Reference number:

1-terminal assembly, 11a-positive external part, 11b-negative external part, 12-bending part, 12a-connecting front section, 12b-bending middle section, 12b1-direction changing section, 12b2-vertical section, 12c-connecting rear section , 13a-first enclosing part, 13b-second enclosing part, 14a-first contact elastic piece, 14b-second contact elastic piece, 15-crossbar part, 16-square body part, 16a-harpoon foot, 16b-circle arc shrapnel;

2-bottom case, 21-cylindrical rod, 22-card slot, 23-accommodating slot, 24-press block, 25a-first notch, 25b-second channel, 26-insertion part, 27-terminal slot, 28 -Partition wall, 29a-first fixing post, 29b-second fixing post, 230-limiting wall, 231-limiting bump, 232-avoidance notch, 233-groove, 234-fixing hole, 235-protruding ring ;

3-Top cover, 31 Clamping claw, 32-Toggle elastic buckle, 32a-Bump, 33-Pressing bump, 34-Annular bump, 35-Abutting post, 36-Handle, A1- Obtuse angle, A2-right intersection angle, B-left intersection angle, C-convex angle.

Detailed ways

Button battery case as a whole

As shown in FIG. 1 , the button battery case of the present invention includes a terminal assembly 1 , a bottom case 2 and a top cover 3 . The terminal assembly 1 includes a positive terminal and a negative terminal, which are respectively electrically connected to the positive shell and the negative cover of the button battery. The positive and negative terminals include positive and negative external parts 11b for externally supplying power to the adapter device; the terminal assembly 1 is arranged at the bottom In the case 2, the top cover 3 is movably connected to the bottom case 2, and the bottom case 2 is provided with a accommodating groove 23, the accommodating groove 23 is used for accommodating the button battery, and the accommodating groove 23 is adapted to the corresponding button battery; the top cover 3 It can be closed or opened for easy replacement of the button battery.

Implementation of the top cover

The main body of the top cover 3 is in an oblate shape, and its size is matched with the accommodating groove 23 of the bottom case 2 . One end of the top cover 3 is provided with a clamping claw 31, and one end of the bottom case 2 is provided with a cylindrical rod 21, and the clamping claw 31 is clamped on the cylindrical rod 21, so that the top cover 3 is connected to the bottom case 2 in a reversible manner; an implementation In the example, one end of the top cover 3 is provided with two symmetrical clamping claws 31, and one end of the bottom case 2 is provided with two symmetrical cylindrical rods 21, the two clamping claws 31 are clamped on the corresponding cylindrical rods 21, and the top The cover 3 can be turned over with the cylindrical rod 21 as the axis; obviously, the clamping claw 31 here can be a wider clamping claw 31. For example, the above-mentioned two clamping claws 31 are stretched along the direction of the inversion axis and connected, and the same can also be used. Two symmetrical cylindrical rods 21 are connected. The top cover 3 and the bottom shell 2 can also be movably connected through structures such as movable riveting, springs and the like.

The top cover 3 is provided with two symmetrical toggle elastic buckles 32 at the other end opposite to the clamping claws 31, and the bottom case 2 is provided with a card slot 22. The dynamic elastic buckle 32 can be snapped into the card slot 22, and the bump 32a on the side of the elastic buckle 32 is pushed against the bottom surface of the side wall of the card slot 22 to realize the connection between the top cover 3 and the bottom shell 2 at this end; The free end of the toggle elastic buckle 32 is toggled inside, and the protrusion 32a slides into the slot 22 to realize the separation of the toggle elastic clip 32 from the slot 22 . The top surface of the protruding block 32a is a flat surface for abutting against the bottom surface of the side wall of the clamping slot 22; Other buckle structures can also be used to realize the connection of the top cover 3 and the bottom case 2 at this end.

The top cover 3 can be additionally provided with a top pressing protrusion 33 on the bottom surface to press the button battery after the cover is closed, so as to further restrict the button battery. An annular bump 34 and abutting post 35 can also be added to press the terminal assembly 1 provided on the bottom case 2 after the cover is closed to further restrict the terminal assembly 1. The shape of the annular bump 34 is based on the terminal. The shape of the terminal is set correspondingly; due to the force on the terminal during insertion, deformation or displacement may occur.

A handle portion 36 can be added on the top surface of the top cover 3, on the one hand, it is convenient for the button battery box to be pulled away from the electrical equipment, and on the other hand, it can also abut against the inner wall or convex ribs of the electrical equipment to increase the stability of the button battery box; The handle portion 36 can be set in a Y shape as shown in FIG. 2 , and of course can also be set in other shapes.

Embodiment of the bottom case

3 and 4, the main part of the bottom case 2 is an accommodating groove 23, and the accommodating groove 23 should be adapted to the corresponding button battery to accommodate the button battery; in the present invention, the negative cover of the button battery is facing down, The positive shell of the button battery is installed in the accommodating groove 23 upward; the upper end of the groove wall of the accommodating groove 23 is provided with a plurality of pressing blocks 24 along the circumferential direction, and the top surface of the pressing blocks 24 is a guiding inclined surface to facilitate the button battery to be inserted, and the pressing blocks 24 The bottom surface of the battery is flat in order to press the top surface of the button battery after being installed in the accommodating groove 23 . A first notch 25a is set on the side of the groove wall of the accommodating groove 23, and a second notch is set on the bottom surface of the groove wall of the accommodating groove 23 corresponding to the first notch 25a. Removal of the button battery; the above-mentioned communicating notch can be set on the left side of the accommodating groove 23 or on the right side of the accommodating groove 23 , or one on each of the left and right sides of the accommodating groove 23 .

The terminal assembly 1 of the button battery box supplies power to the outside through the external part, and the bottom case 2 is provided with a plug-in part 26 at the corresponding position to accommodate the external part, and the external part here can be a jack or a pin; the button battery box is installed in After the button battery is installed, the electrical connection is realized by plugging the plug portion 26 with the corresponding male or female head of the external electrical device. The bottom case 2 is further provided with a terminal slot 27 for accommodating the terminal assembly 1 , and the terminal slot 27 is further provided with a partition wall 28 for separating the positive and negative terminals.

Two ends of the bottom case 2 may be respectively provided with cylindrical rods 21 and clamping grooves 22 , which have been explained in the description of the top cover 3 and will not be repeated here.

Embodiments of Terminal Assembly

Positive terminal

The terminal assembly 1 includes a positive terminal, and the positive terminal sequentially includes a positive external portion 11a, a bent portion 12, a first surrounding portion 13a and a first contact elastic piece 14a. The positive external part 11a is used to realize external connection and power supply. The positive external part 11a can be a female jack or a male pin; the bending part 12 is used to change the bending direction of the terminal, so that the positive terminal can be correctly installed on the bottom In the terminal groove 27 of the shell 2, it also affects the shape of the expanded sheet metal part of the positive terminal, which has different effects on industrial manufacturing; the bottom shell 2 includes a first fixing column 29a, and the first surrounding portion 13a surrounds the A fixed post 29a serves to limit the entire positive terminal; the first contact elastic piece 14a is electrically connected to the annular side surface of the positive shell of the button battery, and serves as an electrical connection with the button battery.

first embodiment

As shown in FIG. 6, an embodiment of the positive terminal is shown, wherein the positive external part 11a is an insertion hole, a plurality of convex hulls are arranged in the insertion hole, and an anti-retraction sheet is arranged outside the insertion hole.

The first enclosing part 13a is composed of two vertical planes, the bending part 12 and the first enclosing part 13a together enclose the first fixing column 29a, and one of the planes of the first enclosing part 13a is attached to the bottom case 2 . The side wall is arranged to limit the positive terminal. In addition, a limiting wall 230 can also be extended from the side wall of the bottom case 2, and the limiting wall 230 is parallel and close to another plane of the first enclosing portion 13a, so that the positive terminal is further limited.

The bending part 12 includes a connecting front section 12a, a bending middle section 12b and a connecting rear section 12c in turn, and these three sections together form the bending section 12; the connecting rear section 12c is formed by extending from the bottom edge of the first surrounding section 13a, and connecting the The front section 12a and the connecting rear section 12c are coplanar and perpendicular to each other, and the vertical turning section between the connecting front section 12a and the connecting rear section 12c is the bending middle section 12b. The bending portion 12 is integrally formed by stamping, and it is not necessary to perform another bending process on the bending portion 12, and the processing is relatively convenient.

The first contact elastic piece 14a is formed by extending from the side of the first enclosing portion 13a and then bending it, so as to be in contact with the annular side surface of the positive electrode shell of the button battery.

Second Embodiment

As shown in FIG. 7, the difference between the second embodiment and the first embodiment is as follows. The positive terminal also includes a cross bar portion 15 , a second surrounding portion 13b and a second contact elastic piece 14b. One end of the cross bar portion 15 is connected to the first surrounding portion 13a, the other end of the cross bar portion 15 is connected to the second surrounding portion 13b, and the second contact elastic piece 14b is connected to the second surrounding portion 13b, so that there is one positive terminal The whole can be machined from one sheet metal part.

Correspondingly, the bottom case 2 includes a second fixing column 29b, the second surrounding portion 13b surrounds the second fixing column 29b, and the second surrounding portion 13b is formed by bending a sheet metal surface twice, and each bending is approximately 90 degrees The effect of limiting the positive terminal after the three planes surround the second fixing column 29b is better; the second fixing column 29b and the first fixing column 29a can be arranged opposite to each other, and the The mutual interaction of the two enclosing parts 13b increases the limiting effect.

In addition, the second contact elastic piece 14b and the crossbar portion 15 are all electrically connected to the annular side surface of the positive electrode shell of the button battery, which increases the contact point between the positive electrode terminal and the button battery, and improves the electrical conductivity; the positive terminal and the positive electrode of the button battery The annular side surface of the shell is electrically connected. On the one hand, both the positive terminal and the negative terminal can be arranged in the bottom shell 2, and on the other hand, the thickness of the button battery box can be further compressed.

Third Embodiment

Referring to Figures 8 and 9, the third embodiment has an optimized solution based on the second embodiment. The sheet metal parts of the third embodiment are basically strip-shaped after being unfolded, and the sheet metal parts of the second embodiment are unfolded to the A section is extended to the right, so the positive terminal of the third embodiment can adopt a relatively tight layout, which can greatly save materials in the industrial manufacturing process. The specific optimized structure is as follows.

The third embodiment optimizes the structure of the bending portion 12, wherein the connecting rear portion 12c is formed by bending and extending the side of the first enclosing portion 13a, and the connecting front portion 12a is located on the normal plane of the connecting rear portion 12c. The front section 12a and the connecting rear section 12c form a normal vertical direction.

Specifically, the bending middle section 12b includes a direction-changing section 12b1 and a vertical section 12b2, the direction-changing section 12b1 is formed by extending the connecting rear section 12c, and the direction-changing section 12b1 and the connecting rear section 12c intersect at an obtuse angle A1; the direction-changing section 12b1 faces toward Fold outward, and the other end of the direction changing section 12b1 is connected to the vertical section 12b2. The orthographic projections of the vertical section 12b2 and the connecting rear section 12c are perpendicular to each other. Obviously, the vertical section 12b2 is connected to the connecting front section 12a. The direction-changing section 12b1 can be folded outwards in half, and the intersection angle between the direction-changing section 12b1 and the connected rear section 12c needs to be set to an obtuse angle A1, and the positive terminal cannot be expanded into a strip shape regardless of whether it is a right angle or a flat angle.

Fourth Embodiment

As shown in FIG. 10 , the main difference between the fourth embodiment of the positive terminal and the third embodiment is that the direction changing section 12b1 of the third embodiment changes direction to the upper right, and when it is processed into a positive terminal, it is from the top to the top. Fold down; the direction changing section 12b1 of the fourth embodiment changes direction toward the upper left, and is folded from bottom to top when it is processed into a positive terminal.

In the preferred solution of the present invention, the obtuse angle A1 of intersection between the direction changing section 12b1 and the connecting rear section 12c is preferably 135 degrees; the positive terminal flattening piece in this preferred solution is the left intersection angle between the connecting front section 12a and the direction changing section 12b1 Both B and the right intersection angle A2 are the same 135 degrees, which is convenient for punching of sheet metal parts.

As shown in FIG. 5 , since the connection rear section 12c is formed by bending and extending the side of the first enclosing portion 13a, when this section is put into the terminal groove 27 in the second embodiment of the bottom case 2, the terminal groove there 27 will be too wide so that the segment is not limited; limiting bumps 231 can be added on the partition wall 28 and/or the side wall of the bottom case 2 to press against the connecting rear segment 12c. Likewise, since the direction changing section 12b1 will generate a convex angle C after being folded, an avoidance notch 232 needs to be added at the corresponding position of the partition wall 28 to avoid the convex angle C.

Negative terminal

The terminal assembly 1 includes a negative terminal, the negative terminal includes a negative external portion 11 b , and the positive and negative external portions 11 b are arranged in the insertion portion 26 of the bottom case 2 . The negative terminal of the present invention is electrically connected to the negative cover of the button battery, and the negative terminal is arranged on the bottom surface of the accommodating groove 23 of the bottom case 2 .

As shown in FIG. 11 , the negative terminal also includes a square main body 16, a harpoon foot 16a and an arc shrapnel 16b connected to it. The harpoon foot 16a is used to fix the negative terminal on the bottom case 2, and the arc shrapnel 16b Lift up from the bottom surface of the bottom case 2 to push up the button battery and electrically connect the negative electrode cover thereof. 5, a groove 233 is added on the bottom surface of the accommodating groove 23 of the bottom case 2 at the corresponding position to accommodate the square body portion 16 of the negative terminal, so that the button battery can be flatly placed in the accommodating groove after being installed in place; A fixing hole 234 runs through the periphery of the groove 233 for inserting the harpoon feet 16a. Referring to FIG. 4 , a convex ring 235 is added on the periphery of the fixing hole 234 on the back of the bottom case 2 to protect the head of the harpoon foot 16a exposed therefrom.

In the present invention, different implementations of each component of the button battery box can be combined with each other to form different implementations of the button battery box under the premise of conforming to the innovative spirit of the present invention and meeting the industrial requirements.

Claims (10)

1. A button battery box, comprising a terminal assembly (1), a bottom case (2), and a top cover (3), the top cover (3) being movably connected to the bottom case (2), and the The terminal assembly (1) is arranged in the bottom case (2), and an accommodating groove (23) is arranged in the bottom case (2), and the accommodating groove (23) is used for accommodating the button battery, and is characterized in that the The terminal assembly (1) includes a positive terminal, and the positive terminal sequentially includes a positive external portion (11a), a bent portion (12), a first enclosing portion (13a) and a first contact elastic piece (14a). The shell (2) includes a first fixing column (29a), the first surrounding portion (13a) surrounds the first fixing column (29a), the first contact spring (14a) and the positive electrode shell of the button battery are annular Side electrical connections. 2 . The battery case according to claim 1 , wherein the bending portion 12 and the first surrounding portion ( 13 a ) together surround the first fixing column ( 29 a ). 3 . 3. The battery box according to claim 2, wherein the positive terminal further comprises a cross bar portion (15), a second surrounding portion (13b) and a second contact elastic sheet (14b), the cross bar Two ends of the part (15) are respectively connected to the first surrounding part (13a) and the second surrounding part (13b), and the second contact elastic piece (14b) is connected to the second surrounding part (13b); The bottom case (2) includes a second fixing column (29b), the second enclosing part (13b) surrounds the second fixing column (29b); the second contact elastic piece (14b), the cross bar The parts (15) are all electrically connected to the annular side surface of the positive electrode shell of the button battery. 4 . The battery box according to claim 1 , wherein the bending part ( 12 ) sequentially comprises a connecting front section ( 12 a ), a bending middle section ( 12 b ) and a connecting rear section ( 12 c ), and the connecting front section (12a) and said connecting rear section (12c) are perpendicular to each other. 5. The battery case according to claim 4, characterized in that, the bottom edge of the first enclosing portion (13a) is extended to form the connection rear section (12c), the connection front section (12a) and the connection The rear segments (12c) are coplanar. 6. The battery case according to claim 4, characterized in that, the side edges of the first enclosing portion (13a) are bent and extended to form the connection rear section (12c), and the connection front section (12a) is located in the on the normal plane of the connecting rear section (12c). 7. The battery box according to claim 6, characterized in that, the bending middle section (12b) comprises a direction-changing section (12b1) and a vertical section (12b2), and the direction-changing section (12b1) is connected by the The rear section (12c) is elongated and formed, and the direction-changing section (12b1) and the connecting rear section (12c) intersect at an obtuse angle (A1); the direction-changing section (12b1) is folded outward, and the direction-changing section ( The other end of 12b1) is connected with the vertical segment (12b2), and the orthographic projections of the vertical segment (12b2) and the connected back segment (12c) are perpendicular to each other. 8. The battery case according to claim 7, wherein the obtuse angle (A1) is 135 degrees. 9. The battery box according to claim 1, characterized in that, one end of the top cover (3) is provided with a clamping claw (31), and one end of the bottom case (2) is provided with a cylindrical rod (21), so The clamping claw (31) is clamped on the cylindrical rod (21); the other end of the bottom case (2) is provided with a plug-in portion (26), and the terminal assembly (1) includes a negative terminal, so The negative stage terminal includes a negative electrode external part (11b), and the positive and negative electrode external parts (11b) are arranged in the plug-in part (26). 10 . The battery box according to claim 9 , wherein two symmetrical toggle elastic buckles ( 32 ) are provided at the other end of the top cover ( 3 ), and the bottom case ( 2 ) is provided with There is a card slot (22), and the toggle elastic buckle (32) is arranged in cooperation with the card slot (22).

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