CN211480126U

CN211480126U - Rotary mounting structure of battery pack

Info

Publication number: CN211480126U
Application number: CN202020141067.8U
Authority: CN
Inventors: 蒋友荣
Original assignee: Zhejiang Value Mechanical & Electrical Products Co ltd
Current assignee: Zhejiang Value Mechanical & Electrical Products Co ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-09-11
Anticipated expiration: 2030-01-21

Abstract

The utility model discloses a mounting structure of a battery pack, which provides a rotary mounting structure of the battery pack with simple structure, convenient and quick assembly and disassembly, low electric loss and safe and reliable electrode connection, solves the technical problems that the contact area between connecting electrodes is small, the electrode is easy to generate heat and cause safety accidents when the current is large, the contact between the electrodes is poor, the normal use of a power device is influenced, and the like in the prior art, and comprises a power device and the battery pack which is movably connected on the power device, the battery pack is electrically connected on a power electrode of the power device through the electrode of the battery pack, the electrode of the battery pack and the power electrode are correspondingly arranged on the butt joint surface of the battery pack and the power device, mutually matched positioning hooks and positioning clamping grooves are correspondingly arranged on the butt joint surface of the battery pack and the power device, the positioning hooks extend to the positioning clamping grooves and are fixed in a rotating way and locked through a locking mechanism, meanwhile, the battery pack electrode is tightly pressed on the power electrode in a sealing way.

Description

Rotary mounting structure of battery pack

Technical Field

The utility model relates to a mounting structure of battery package especially relates to a convenient and fast to assemble and disassemble, the rotatory mounting structure of safe and reliable battery package is connected to the electrode.

Background

The electric bubble package is lithium electricity electric tool's important component, and it provides the power energy for electric tool, and for the convenience of carrying and using, the electric bubble package need satisfy conditions such as the size is little, simple structure, easy dismounting usually. The current electric bubble package fixed connection generally adopts the formula of cuting straightly, the inserted sheet formula electrode cartridge of electric bubble package is in electric tool's electrode plug spring's double-layered mouth promptly, be the dotted line contact between inserted sheet formula electrode and the electrode plug spring, the area of contact of the two is less, contact resistance is big, the electrical loss is high, when using electric current great, if when exceeding 10A, the electrode is very easily generated heat and causes the incident, consequently, there is certain installation hidden danger, simultaneously after electric bubble package is inserted and pulled out many times, electrode plug spring elasticity can reduce, easily lead to the electrode contact failure, influence electric tool's normal use.

Disclosure of Invention

The utility model mainly provides a simple structure, easy dismounting is swift, and the electrical loss is low, and safe and reliable's battery package's rotatory mounting structure is connected to the electrode, and it is less to have solved the area of contact between the connecting electrode that exists among the prior art, and the electrode very easily generates heat and causes the incident when the electric current is great, and easily leads to the technical problem of electrode contact failure, influence power device's normal use etc..

The above technical problem of the present invention can be solved by the following technical solutions: the utility model provides a rotatory mounting structure of battery package, includes power device and swing joint battery package on power device, wherein the battery package is connected on power device's power electrode through battery package electrode electricity, battery package electrode and power electrode correspond and locate on battery package and power device's the butt joint face, correspond on battery package and power device's butt joint face and be equipped with location pothook and the positioning groove of mutually supporting, the location pothook extends to positioning groove internal rotation back hook fixed and through locking mechanism locking, and battery package electrode is airtight to be compressed tightly on power electrode simultaneously. The battery pack and the power device are connected by the connecting electrode, and the battery pack or the power device is provided with the positioning hook, and the other corresponding side is provided with the positioning slot, when in installation, the hooking end at the outer end part of the positioning hook passes through the positioning slot, and then the battery pack or the power device with the positioning hook is rotated to ensure that the hooking end of the positioning hook is hooked at the inner port edge of the positioning slot for fixation, and the position of the battery pack relative to the power device is locked by the anti-loosening mechanism, so that the battery pack electrode is tightly pressed on the power electrode in a sealing way to realize the electric connection between the battery pack and the power device, and as the battery pack electrode and the power electrode are in surface contact, the contact area is large, the resistance is small, the electric loss is small, and when a large current is used, the electrode heating phenomenon can not occur, and the safety and the reliability are; the battery pack and the power device are assembled in a rotating mode, reliable connection between electrodes is achieved while assembling is conducted, the structure is simple, disassembly and assembly can be achieved through reciprocating rotation, time and labor are saved, and convenience and rapidness are achieved; the electrodes are connected in a pressing mode, so that the electrodes are ensured to be in full and good contact, and normal use of the power device is ensured.

Preferably, the positioning hook comprises a positioning column, and the outer ring surface corresponding to the outer end part of the positioning column extends outwards to form a plurality of positioning raised heads. The outer end part of the positioning column extends outwards along the end surface of the positioning column to form a plurality of positioning raised heads, the positioning hooks penetrate through the positioning clamping grooves in a matched mode through the positioning raised heads, and then the positioning raised heads are rotated to be hung on the edges of the inner ports of the positioning clamping grooves to be fixed.

Preferably, the inner side surface of the positioning clamping groove corresponding to the hook hanging surface of the positioning clamping hook extends outwards to form a gradually tightening inclined surface, and the positioning clamping hook slides along the surface of the gradually tightening inclined surface when being hung and fixed. Through set up gradually tight inclined plane of gradual rising on the rotatory orbit of location pothook that corresponds at the positioning channel medial surface, its hook face slides along gradually tight inclined plane in the same time of location pothook is rotatory, thereby make battery package and power device's butt joint face constantly be close to, laminate completely until the butt joint face of the two, the airtight compaction of battery package electrode is on power electrode simultaneously, the in-process adopts gradually tight formula installation, ensure that the abundant reliable compact form of battery package electrode and power electrode is connected, think about ingeniously, connect reliably, and easy dismounting.

More preferably, the inner side surface of the positioning slot corresponding to the hook hanging surface of the positioning hook extends outwards to form an elastic salient point, and the positioning hook is positioned on the elastic salient point when being hung and fixed. The elastic convex points protruding outwards can be arranged on the rotating track of the positioning clamping hooks corresponding to the inner side surfaces of the positioning clamping grooves, the elastic convex points are spherical surfaces, so that the hook fine dried noodles of the positioning clamping hooks can face upwards along the spherical surfaces of the elastic convex points, the butt joint surfaces of the battery pack and the power device are completely attached until the highest point, the battery pack electrode is tightly pressed on the power electrode in a sealing mode, the structure is simpler, and the forming is convenient.

Preferably, the inner side surface of the positioning clamping groove corresponding to the hook hanging surface of the positioning clamping hook is provided with a locking washer. Through setting up lock washer at positioning slot's medial surface, be about to gradually tighten inclined plane or elasticity bump setting on lock washer, the processing of convenient gradually tightening inclined plane or elasticity bump, the accessible changes lock washer's material simultaneously, or add modes such as bullet pad between lock washer and positioning slot medial surface and make gradually tightening inclined plane or elasticity bump have certain elasticity, ensure that the battery package electrode is airtight compressing tightly all the time on the power electrode.

The positioning clamping hook can also be arranged on the battery pack, the positioning clamping groove is arranged on the butt joint surface of the power device, as the optimization, the positioning clamping hook is arranged in the middle of the butt joint surface of the power device, and the positioning clamping groove is arranged on the outer shell of the battery pack. The positioning clamping hook is arranged on the butt joint surface of the power device, and when the positioning clamping hook is positioned in the middle of the butt joint surface, the stress balance of the joint surface is ensured.

Preferably, the anti-loosening mechanism comprises a buckle which is connected to the outer wall surface of the battery pack in a sliding mode, the front end portion of the buckle extends downwards to the outer shell of the battery pack to form an L-shaped clamping tongue, and the transverse edge of the L-shaped clamping tongue penetrates through the outer shell outwards and is clamped in a corresponding clamping groove in the butt joint surface of the power device in a matched mode. The anti-loosening mechanism prevents the battery pack after being installed from reversely falling off, and improves the use reliability.

More preferably, a return spring is arranged on one side of the longitudinal edge of the L-shaped clamping tongue opposite to the transverse edge of the L-shaped clamping tongue. The reset spring ensures that the L-shaped clamping tongue is always clamped in the corresponding clamping groove on the butt joint surface of the power device under the action of no external force.

Preferably, the battery pack electrode and the power electrode are both arc-shaped and are embedded and fixed in the butting surface of the battery pack and the power device. When the battery pack electrode and the power electrode which are completely same in size and shape are both arc-shaped, the shapes of the battery pack electrode and the power electrode are just matched with the rotating track of the battery pack, namely the battery pack electrode and the power electrode are positioned on the same circumferential surface, firstly, the complete overlapping connection of the two electrodes is ensured, and secondly, the electrode connection in small-angle rotation deviation can be met, so that the processing and mounting precision can be reduced, and the manufacturing cost is saved.

Therefore, the utility model discloses a rotatory mounting structure of battery package has following advantage: the contact area between the connecting electrodes is large, so that the device is suitable for a large-current power device with the current of more than 10A, and is safe and reliable; the connecting electrodes are in surface contact, so that the contact resistance is low; the connection electrodes are in compression connection, so that the contact is good; the rotary type disassembly and assembly is convenient and rapid, and time and labor are saved; the locking mechanism locks and compresses the connection position, so that the continuous effectiveness of connection is ensured, and the reliability is high.

Description of the drawings:

fig. 1 is an exploded view of a battery pack according to a first embodiment of the present invention;

FIG. 2 is a schematic structural view of a first embodiment of the present invention;

FIG. 3 is a schematic structural view of a second embodiment of the present invention;

fig. 4 is a schematic view of a partial structure of a battery pack according to a third embodiment of the present invention;

fig. 5 is a schematic structural view of a lock washer according to a first embodiment of the present invention;

fig. 6 is a schematic structural view of a lock washer according to a third embodiment of the present invention.

The specific implementation mode is as follows:

the technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example 1:

as shown in fig. 1 and fig. 2, the present invention relates to a rotary mounting structure of a battery pack, which includes a power device 1 and a battery pack 2 movably connected to the power device 1, for better illustration, the power device 1 in this embodiment is a portable electric tool, wherein the battery pack 2 is electrically connected to a pair of power electrodes 4 of the power device 1 through a pair of battery pack electrodes 3, a positioning hook 5 is provided in the middle of the butt-joint surface of the power device 1, a positioning slot 6 is provided on the outer casing 21 of the battery pack 2 corresponding to the positioning hook 5, the battery pack electrodes 3 and the power electrodes 4 are arc-shaped members having the same shape and size, the battery pack electrodes 3 are located at both sides of the positioning slot 6, the power electrodes 4 are located at both sides of the positioning hook 5, and the two battery pack electrodes 3 extend on the same circumference around the central axis of the positioning slot 6, the two power electrodes 4 extend on the same circumference around the center shaft of the positioning hook 5, the two power electrodes are respectively embedded and fixed on the butt joint surface of the battery pack 2 and the power device 1, the outer end surfaces of the two power electrodes are parallel to the butt joint surface of the corresponding battery pack 2 or the power device 1 and protrude 1mm to 2mm, wherein the positioning hook 5 comprises a positioning column 51, the center shaft of the positioning column 51 is vertical to the butt joint surface of the power device 1, the outer ring surface corresponding to the outer end part of the positioning column 51 extends outwards to form two square positioning raised heads 52 in an integrated manner, the two positioning raised heads 52 are uniformly distributed on the same circumference, the projection of the positioning hook 5 on the butt joint surface of the battery pack 2 is the same as the positioning clamping groove 6 in shape and size, the inner side surface of the outer shell 21 corresponding to the inner port of the positioning clamping groove 6 is fixed with a check washer 7 through two screws, as shown in figure 5, the, the shape and size of the middle hole of the anti-loose washer 7 are consistent with those of the positioning clamping groove 6, the outer side end of the positioning clamping hook 5 sequentially penetrates through the positioning clamping groove 6 on the outer shell 21 and the middle hole of the anti-loose washer 7, the positioning clamping hook 5 is rotated according to a set angle to be hooked and fixed, two positioning raised heads 52 at the end part of the positioning clamping hook 5 are hooked and fixed on the edge of the anti-loose washer 7, the inner side surface of the anti-loose washer 7 corresponding to the rotating track of the positioning raised heads 52 extends towards the inner direction of the battery pack 2 to form a circular arc gradually-tight inclined surface 61, the height of the gradually-tight inclined surface 61 is gradually increased from the rotating starting end to the locking end, the positioning clamping hook 5 slides along the surface of the gradually-tight inclined surface 61. The anti-loosening mechanism 8 is arranged between the abutting surfaces of the power device 1 and the battery pack 2, the anti-loosening mechanism 8 comprises a buckle 81 which is connected on the outer wall surface of the outer shell 21 in a sliding way, two side edges of the buckle 81 are connected in corresponding sliding rail grooves on the outer shell 21 in a sliding way, the front end part of the buckle 81 vertically and downwards extends into the outer shell 21 in an integrated way to form an L-shaped clamping tongue 82, the transverse edge of the L-shaped clamping tongue 82 outwards penetrates through the outer shell 21 and is mutually clamped in a clamping groove 9 on the abutting surface of the power device 1 when in a locking position, the clamping groove 9 is U-shaped with an inward opening, the other side of the longitudinal edge of the L-shaped clamping tongue 82 opposite to the transverse edge of the L-shaped clamping tongue 82 is provided with a return spring 10, one end of the return spring 10 abuts against the inner wall surface or an internal component of the outer shell 21, the other end abuts against the longitudinal side wall surface of the, the present embodiment is rotation 180 ° locking.

Example 2:

as shown in fig. 3, a positioning hook 5 is provided in the middle of the abutting surface of the outer housing 21, and a positioning slot 6 is provided on the abutting surface of the power unit 1 corresponding to the positioning hook 5. The rest is exactly the same as in example 1.

Example 3:

as shown in fig. 4 and 6, the outer ring surface corresponding to the outer end of the positioning post 51 extends outwards to form four square positioning protrusions 52, the inner side surface of the lock washer 7 corresponding to the positioning protrusions 52 extends towards the inner direction of the battery pack 2 to form four spherical elastic bumps 62, the heights of the elastic bumps 62 are 0.5 mm to 1mm, when the battery pack is locked, the positioning hooks 5 are hooked on the corresponding elastic bumps 62 through the positioning protrusions 52, in order to prevent the locking position from deviating, the locking start positions are provided with the limiting posts 11, the limiting posts 11 are all located on the inner wall surface of the outer shell 21, wherein the lock washer 7 is made of a metal material, and spring pads are additionally arranged between the lock washer 7 and the inner wall surface of the outer shell 21 of the battery pack 2. The rest is exactly the same as in example 1.

The specific embodiments described herein are merely illustrative of the principles of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a rotatory mounting structure of battery package, includes power device (1) and swing joint battery package (2) on power device (1), wherein battery package (2) are connected on power device's (1) power electrode (4) through battery package electrode (3) electricity, its characterized in that: battery package electrode (3) and power electrode (4) correspond and locate battery package (2) and power device (1) on the butt joint face, correspond on the butt joint face of battery package (2) and power device (1) and be equipped with location pothook (5) and positioning groove (6) of mutually supporting, location pothook (5) extend to positioning groove (6) internal rotation back hook fixed and through locking mechanism (8) locking, battery package electrode (3) are airtight to be compressed tightly on power electrode (4) simultaneously.

2. The rotary mounting structure of a battery pack according to claim 1, wherein: the positioning hook (5) comprises a positioning column (51), and the outer ring surface corresponding to the outer end part of the positioning column (51) extends outwards to form a plurality of positioning raised heads (52).

3. The rotary mounting structure of a battery pack according to claim 1, wherein: the inner side surface of the positioning clamping groove (6) corresponding to the hook fine dried surface of the positioning clamping hook (5) extends outwards to form a gradually tightening inclined surface (61), and the positioning clamping hook (5) slides along the surface of the gradually tightening inclined surface (61) when being hooked and fixed.

4. The rotary mounting structure of a battery pack according to claim 1, wherein: the inner side surface of the positioning clamping groove (6) corresponding to the hook fine dried surface of the positioning clamping hook (5) extends outwards to form an elastic salient point (62), and the positioning clamping hook (5) is positioned on the elastic salient point (62) when being hooked and fixed.

5. The rotation mounting structure of a battery pack according to claim 3 or 4, wherein: and the inner side surface of the positioning clamping groove (6) corresponding to the hook fine dried surface of the positioning clamping hook (5) is provided with a locking washer (7).

6. The rotary mounting structure of a battery pack according to claim 1, wherein: the middle part of power device (1) butt joint face is located in location pothook (5), and positioning slot (6) are located on shell body (21) of battery package (2).

7. The rotary mounting structure of a battery pack according to claim 1, wherein: locking mechanism (8) are including buckle (81) of sliding connection on battery package (2) outer wall face, and the preceding tip downwardly extending of buckle (81) forms L shape block tongue (82) in shell body (21) of battery package (2), and the horizontal limit of L shape block tongue (82) outwards passes shell body (21) and mutually supports the joint in corresponding draw-in groove (9) on power device (1) butt joint face.

8. The rotary mounting structure of a battery pack according to claim 7, wherein: and a return spring (10) is arranged on one side of the longitudinal edge of the L-shaped clamping tongue (82) opposite to the transverse edge of the L-shaped clamping tongue (82).

9. The rotary mounting structure of a battery pack according to claim 1, wherein: the battery pack electrode (3) and the power electrode (4) are both arc-shaped and are embedded and fixed in the butt joint surface of the battery pack (2) and the power device (1).