CN217387436U - A power battery that is used for power battery's extraction structure and has it - Google Patents

Abstract

The utility model discloses a power battery that is used for power battery's extraction structure and has it, the extraction structure includes: the first terminal comprises a first shell, a first conductive piece and at least one magnetic piece, wherein the first conductive piece and the at least one magnetic piece are arranged in the first shell; the second terminal comprises a second shell and a second conductive piece which is arranged in the second shell and is suitable for being electrically connected with the first conductive piece; and the locking piece is arranged on one side surface of the second shell, which is far away from the first terminal, and is suitable for being adsorbed by the magnetic attraction piece. According to the utility model discloses a draw-off structure compares with traditional power battery's draw-off device, can realize the quick assembly disassembly draw-off structure of no instrument ization, and hard less when dismantling to can improve power battery's assembly efficiency and dismantlement efficiency, convenient operation.

Description

Extraction structure for power battery and power battery with extraction structure

Technical Field

The utility model belongs to the technical field of the battery technique and specifically relates to a power battery who is used for power battery's extraction structure and has it.

Background

In the correlation technique, power battery's extraction device is mostly for bolt and nut, and the bolt is mostly for newly-developed non-standard bolt to make power battery's cost higher, and need adopt professional instrument when installation and dismantlement, lead to installation and dismantlement time longer, influenced power battery's assembly efficiency and dismantlement efficiency.

SUMMERY OF THE UTILITY MODEL

In the related art, the cost of the power battery is high, and a special tool is required for installation and disassembly, so that the installation and disassembly time is long. The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a draw forth structure for power battery can realize the quick assembly disassembly draw forth structure of no instrument ization, and hard less when dismantling to power battery's assembly efficiency and dismantlement efficiency can be improved.

Another object of the utility model is to provide a power battery who adopts above-mentioned extraction structure.

According to the utility model discloses a draw forth structure for power battery, include: the first terminal comprises a first shell, a first conductive piece and at least one magnetic piece, wherein the first conductive piece and the at least one magnetic piece are arranged in the first shell; the second terminal comprises a second shell and a second conductive piece which is arranged in the second shell and is suitable for being electrically connected with the first conductive piece; and the locking piece is arranged on one side surface of the second shell, which is far away from the first terminal, and is suitable for being adsorbed by the magnetic attraction piece.

According to the utility model discloses a draw forth structure for power battery through establishing the locking piece in the one side of keeping away from first terminal of second terminal, and the locking piece is suitable for and inhales the piece with magnetism and adsorbs. From this, compare with traditional power battery's draw-out device, can inhale the effect through magnetism between the piece and the locking piece and realize the quick assembly disassembly draw-out structure of no instrumentization, and exert oneself lessly less during the dismantlement to power battery's assembly efficiency and dismantlement efficiency can be improved, convenient operation.

Preferably, at least one limiting part is formed on one of the first shell and the second shell, a limiting clamping groove with one open end is defined by the limiting part and the first shell or the second shell, and at least one limiting protrusion suitable for being matched with the limiting clamping groove is arranged on the other one of the first shell and the second shell.

Preferably, a pivot shaft is arranged on the second shell, a pivot part with a pivot hole is arranged on the locking piece, the locking piece is pivotally connected to the second shell through the cooperation of the pivot shaft and the pivot hole, an extension part is arranged on the locking piece, a protrusion part suitable for receiving thrust of the extension part is arranged on the first shell, the length of the protrusion part protruding out of the first shell is larger than the length of the limiting protrusion protruding out of the first shell or the second shell, and the limiting part, the limiting protrusion, the extension part and the protrusion part are located on the same side of the leading-out structure for the power battery.

Preferably, the second shell is provided with a positioning protrusion, and the locking piece is provided with a positioning convex cap which is suitable for being matched with the positioning protrusion.

Preferably, the second housing is further provided with a limiting piece which is suitable for limiting the transitional rotation of the locking member, and the limiting piece is obliquely extended from one end of the second housing, which is close to the pivot shaft, to a direction away from the pivot shaft.

Preferably, the locking piece is provided with a handle part, and the handle part and the extension part are arranged at two ends of the locking piece.

Preferably, the number of the limiting protrusions is multiple, and the limiting protrusions are arranged on the first shell and located on two sides of the protruding portion respectively; the limiting clamping grooves are multiple and formed in the second shell and correspond to the limiting bulges.

Preferably, the first conductive piece is a copper bar, the first conductive piece includes a first conductive segment and a second conductive segment that are perpendicular to each other and connected to each other, a free end of the first conductive segment extends toward the second terminal, a free end of the second conductive segment passes through a side surface of the first terminal, and the second conductive piece is a copper bar.

Preferably, the first conductive member and the first terminal are injection molded; the second conductive piece and the second terminal are subjected to injection molding; the locking piece is an aluminum sheet.

According to the utility model discloses a power battery, including foretell extraction structure for power battery.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic diagram of a lead-out structure according to an embodiment of the present invention;

fig. 2 is a schematic view of a lock member in a locked position in accordance with an embodiment of the present invention;

FIG. 3 is a schematic view of a lock member in a disengaged position in accordance with an exemplary embodiment of the present invention;

fig. 4 is an exploded view of a lead-out structure according to an embodiment of the present invention;

fig. 5 is an exploded view of another angle of a lead-out structure according to an embodiment of the present invention.

Reference numerals:

100: a lead-out structure;

10: a first terminal; 101: a first conductive member; 1011: a first conductive segment; 1012: a second conductive segment;

102: a first housing; 103: a limiting bulge; 104: a projection; 20: a magnetic member;

30: a second terminal; 301: a second conductive member; 302: a locking member; 3021: a handle part is buckled;

3022: a pivot portion; 3023: an extension portion; 3024: positioning the convex cap; 303: a second housing;

3031: positioning the projection; 304: a limiting part; 3041: a limiting clamping groove; 305: a pivotal shaft;

306: a limiting sheet; 40: and a third conductive member.

Detailed Description

A lead-out structure 100 for a power battery according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 to 5.

As shown in fig. 1 to 5, the lead-out structure 100 for a power battery according to the embodiment of the present invention includes a first terminal 10 and a second terminal 30.

Specifically, the first terminal 10 includes a first housing 102, and a first conductive member 101 and at least one magnetic member 20 disposed in the first housing 102. The second terminal 30 includes a second housing 303, a second conductive member 301 disposed in the second housing 303 and adapted to be electrically connected to the first conductive member 101, and a locking member 302, wherein the locking member 302 is disposed on a side surface of the second housing 303 away from the first terminal 10 and adapted to be attracted to the magnetic attraction member 20.

For example, in the example of fig. 1 to 5, there may be two magnetic attraction members 20, two magnetic attraction members 20 and the first conductive member 101 may be both disposed in the first housing 102, and the two magnetic attraction members 20 are located on two sides of the first conductive member 101 in the width direction. A lock member 302 is provided on a side surface of the second housing 303 remote from the first housing 102, the lock member 302 being movable between a locked position and a separated position.

Referring to fig. 2, when the locking member 302 is located at the locking position, the second terminal 30 is attracted to the first terminal 10 by the magnetic attraction between the locking member 302 and the magnetic attraction member 20, at this time, the second conductive member 301 is electrically connected to the first conductive member 101, and the locking member 302 keeps locking to press the second terminal 30 against the first terminal 10, so as to prevent the first terminal 10 and the second terminal 30 from moving relatively. When the lead-out structure 100 is applied to a power battery, the first conductive member 101 is electrically connected to a battery body of the power battery, so that current in the battery body can be led out through the first conductive member 101 and the second conductive member 301. Referring to fig. 3, when the locking member 302 is located at the separation position, the locking member 302 is separated from the second housing 303, so that the distance between the locking member 302 and the magnetic attraction member 20 can be increased, and the attraction force between the locking member 302 and the magnetic attraction member 20 can be weakened, so that the second terminal 30 is separated from the first terminal 10, and the first conductive member 101 is electrically disconnected from the second conductive member 301. Therefore, the tool-free quick-dismounting leading-out structure 100 can be realized, and the force for dismounting is small, so that the assembling efficiency and the dismounting efficiency of the power battery are improved, and the operation is convenient.

According to the utility model discloses a draw forth structure 100 for power battery through establishing locking piece 302 in the one side of keeping away from first terminal 10 of second terminal 30, and locking piece 302 is suitable for and magnetism to inhale 20 and adsorbs. Therefore, compared with the traditional extraction device of the power battery, the extraction structure 100 of the tool-free quick assembly disassembly can be realized through the magnetic attraction effect between the locking piece 302 and the magnetic attraction piece 20, the force is small during disassembly, and therefore the assembly efficiency and the disassembly efficiency of the power battery can be improved, and the operation is convenient.

According to some embodiments of the present invention, at least one limiting portion 304 is formed on one of the first terminal 10 and the second terminal 30, the limiting portion 304 and the first housing 102 or the second housing 303 define a limiting clamping groove 3041 with an open end, and at least one limiting protrusion 103 adapted to cooperate with the limiting clamping groove 3041 is disposed on the other of the first housing 102 and the second housing 303. At least one position-limiting slot 3041 may be formed on the first housing 102, and at least one position-limiting protrusion 103 (not shown) may be provided on the second housing 303; alternatively, at least one limiting protrusion 103 may be disposed on the first housing 102, and at least one limiting groove 3041 (as shown in fig. 4) may be formed on the second housing 303.

As shown in fig. 2, one end of the second housing 303 in the length direction is provided with at least one limiting portion 304, the limiting portion 304 extends downward in a direction toward the center of the second housing 303, extends horizontally in a direction toward the center of the second housing 303, and one side of the limiting portion 304 adjacent to the second housing 303 is open, so that the limiting portion 304 can define a limiting slot 3041. When the locking member 302 is in the locking position, the position-limiting protrusion 103 fits into the position-limiting groove 3041, so that the second terminal 30 can be more securely mounted on the first terminal 10 by the magnetic attraction between the magnetic member 20 and the locking member 302 and the fit between the position-limiting protrusion 103 and the position-limiting groove 3041.

As shown in fig. 3, when the locking member 302 moves from the locking position to the separating position, the locking member 302 pushes the first housing 302 to separate the position-limiting protrusion 103 from the position-limiting groove 3041, and at this time, one end of the locking member 302 can rotate in a direction away from the second housing 303 to increase a distance between the locking member 302 and the magnetic attraction member 20, so as to weaken an attraction force between the locking member 302 and the magnetic attraction member 20, so that the locking member 302 can push the first terminal 10 and separate the position-limiting protrusion 103 from the position-limiting groove 3041, and thus the second terminal 30 can be separated from the first terminal 10.

Further, referring to fig. 1 to 5, a pivot shaft 305 is provided on the second housing 303, a pivot part 3022 having a pivot hole is provided on the latch member 302, the latch member 302 is pivotally connected to the second housing 303 through the cooperation of the pivot shaft 305 and the pivot hole, an extension part 3023 is provided on the latch member 302, a protruding part 104 adapted to receive a pushing force of the extension part 3023 is provided on the first housing 102, a length of the protruding part 104 protruding out of the first housing 102 is longer than a length of the limiting protrusion 103 protruding out of the first housing 102 or the second housing 303, and the limiting part 304, the limiting protrusion 103, the extension part 3023, and the protruding part 104 are located on the same side of the lead-out structure 100 for the power battery.

As shown in fig. 1 to 5, one end of the latch member 302 adjacent to the extending portion 3023 is provided with two pivotal portions 3022, the two pivotal portions 3022 are respectively located at both sides of the latch member 302 in the width direction, each pivotal portion 3022 extends in a direction toward the first terminal 10, and two pivot shafts 305 respectively pass through the corresponding pivotal portion 3022 and the second housing 303 so that the latch member 302 is rotatably connected to the second housing 303.

Referring to fig. 4 and 5 in combination with fig. 3, the extending portion 3023 may extend obliquely downward, the limiting protrusion 103 and the protruding portion 104 may be both disposed on the first housing 102, and the limiting protrusion 103 and the protruding portion 104 may extend in a direction away from the center of the first terminal 10, since the length of the protruding portion 104 protruding out of the first housing 102 is greater than the length of the limiting protrusion 103 protruding out of the first housing 102, when the end of the locking member 302 away from the extending portion 3023 rotates in a direction away from the magnetic member 20, the extending portion 3023 of the locking member 302 abuts against the protruding portion 104, and the end of the locking member 302 continues to rotate to generate an interaction force between the extending portion 3023 and the protruding portion 104, so as to push the second terminal 30 so that the second terminal 30 may move in a direction away from the center of the first terminal 10 in a length direction of the first terminal 10, so that the limiting protrusion 103 may be disengaged from the limiting groove 3041.

According to some embodiments of the present invention, the second housing 303 is provided with a positioning protrusion 3031, and the locking member 302 is provided with a positioning convex cap 3024 adapted to cooperate with the positioning protrusion 3031. As shown in fig. 3, a positioning protrusion 3031 may be provided on a side surface of the second housing 303 adjacent to the latch member 302, a positioning convex cap 3024 may be formed by a portion of the latch member 302 protruding in a direction away from the second housing 303, the positioning protrusion 3031 and the positioning convex cap 3024 may be detachably engaged, and the positioning protrusion 3031 may be engaged in the positioning convex cap 3024 when the latch member 302 is located at the latch position. Thereby, the movement of the lock member 302 in the horizontal direction and the vertical direction of the second housing 303 can be restricted to ensure the stability of the lock member 302 in the lock position.

Further, the second housing 303 is further provided with a limiting piece 306 adapted to limit the locking member 302 from rotating excessively, and the limiting piece 306 is disposed to extend obliquely from one end of the second housing 303 close to the pivot axis 305 to a direction away from the pivot axis 305. Referring to fig. 1, the position-limiting piece 306 may be disposed on a side of the position-limiting portion 304 away from the protruding portion 104, and the position-limiting piece 306 extends along a direction away from the position-limiting portion 304, and one end of the pivoting portion 3022 abuts against the position-limiting piece 306. Thus, the lock member 302 can be prevented from rotating excessively, and the lock member 302 can be prevented from rotating due to accidental collision.

According to some embodiments of the present invention, the locking member 302 is provided with a handle portion 3021, and the handle portion 3021 and the extension portion 3023 are provided at both ends of the locking member 302. When detaching the second terminal 30, the user can lift the locking handle portion 3021 upward to rotate the end of the locking member 302 adjacent to the locking handle portion 3021 in a direction away from the magnetic member 20, so that the locking member 302 can be rotated to the separated position, so that the second terminal 30 can be separated from the first terminal 10. Thus, the user can more quickly detach the second terminal 30 from the first terminal 10, and the detachment efficiency of the lead structure 100 can be further improved.

Further, the locking portion 3021 is formed by a portion of the extension portion 3023 of the locking member 302 extending away from the first housing 102 and then bending toward the first housing 102. For example, in the example of fig. 1-3, the grip portion 3021 is generally U-shaped and the opening of the grip portion 3021 is oriented toward the first terminal 10, and when the second terminal 30 is removed, the user may place a finger at the opening of the grip portion 3021 to better apply a force on the grip portion 3021. Thus, the user can use a small force to rotate the locking member 302 with respect to the second housing 303, so that the second terminal 30 can be more easily detached from the first terminal 10.

According to some embodiments of the present invention, the limiting protrusions 103 are a plurality of, and a plurality of limiting protrusions 103 are disposed on the first casing 102 and located on two sides of the protruding portion 104 respectively. The plurality of position-limiting engaging grooves 3041 are formed on the second housing 303 and correspond to the plurality of position-limiting protrusions 103. In the description of the present invention, "a plurality" means two or more.

For example, in the example of fig. 1 to 5, the stopper portion 304 and the stopper protrusion 103 are both two, and the two stopper protrusions 103 are respectively located on both sides of the projecting portion 104, and each stopper protrusion 103 extends in a direction away from the center of the first terminal 10. When the locking piece 302 is located at the locking position, the two limit protrusions 103 are respectively fitted in the limit catch grooves 3041 of the two limit portions 304, so that the second terminal 30 can be limited to move in the vertical direction in a direction away from the first terminal 10, so that the second terminal 30 can be more firmly mounted on the first terminal 10.

Two stop protrusions 103 and two stop portions 304 are shown in fig. 1-5 for illustrative purposes, but it is obvious to those skilled in the art after reading the technical solutions of the present application that the solution can be applied to other numbers of stop protrusions 103 and stop portions 304, which also falls within the protection scope of the present invention.

In some alternative embodiments, the magnetically attractive element 20 is embedded within the first terminal 10. For example, the magnetically attractive element 20 may be embedded within the first housing 102. Thereby, the space inside the first housing 102 can be effectively utilized to make the structure of the lead structure 100 more compact.

In some alternative embodiments, the first conductive member 101 is a copper bar, the first conductive member 101 includes a first conductive segment 1011 and a second conductive segment 1012 perpendicular to each other and connected to each other, a free end of the first conductive segment 1011 extends toward the second terminal 30, a free end of the second conductive segment 1012 passes through a side surface of the first terminal 10, and the second conductive member 301 is a copper bar. The first conductive member 101 has an L-shape such that the first conductive member 101 can be electrically connected to the second conductive member 301 and the battery body of the battery pack at the same time.

Optionally, the first conductive member 101 is injection molded with the first terminal 10. The second conductive member 301 and the second terminal 30 are injection molded. With the arrangement, the positions of the first conductive piece 101 and the second conductive piece 301 can be more stable, the processing mode is simple, and the production efficiency can be improved.

Alternatively, the latch 302 is an aluminum sheet. But is not limited thereto.

In some optional embodiments, the lead-out structure 100 further includes a third conductive member 40, one end of the third conductive member 40 is electrically connected to the second conductive member 301, and the other end of the third conductive member 40 is connected to other electric components, so that the current in the power battery can be transmitted to other electric components to ensure the normal operation of other electric components. Alternatively, the third conductive member 40 may be a copper bar or a wire harness.

According to the power battery (not shown) of the second aspect embodiment of the present invention, the extraction structure 100 for power battery according to the first aspect embodiment of the present invention is included.

According to the utility model discloses power battery through adopting above-mentioned leading-out structure 100, can realize the quick assembly disassembly leading-out structure 100 of no instrument ization, can improve power battery's assembly efficiency and dismantlement efficiency.

Other configurations and operations of power cells according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A lead out structure for a power cell, comprising:

the first terminal comprises a first shell, a first conductive piece and at least one magnetic piece, wherein the first conductive piece and the at least one magnetic piece are arranged in the first shell;

the second terminal comprises a second shell and a second conductive piece which is arranged in the second shell and is suitable for being electrically connected with the first conductive piece; and

the locking piece is arranged on one side face, far away from the first terminal, of the second shell and is suitable for being adsorbed by the magnetic attraction piece.

2. The extraction structure for the power battery according to claim 1, wherein at least one limiting part is formed on one of the first casing and the second casing, the limiting part and the first casing or the second casing define a limiting clamping groove with an open end, and at least one limiting protrusion adapted to be matched with the limiting clamping groove is arranged on the other one of the first casing and the second casing.

3. The leading-out structure for the power battery as claimed in claim 2, wherein a pivot shaft is arranged on the second housing, a pivot part with a pivot hole is arranged on the lock member, the lock member is pivotally connected to the second housing through the cooperation of the pivot shaft and the pivot hole, an extension part is arranged on the lock member, a protrusion part suitable for receiving the thrust of the extension part is arranged on the first housing, the length of the protrusion part protruding out of the first housing is greater than the length of the limit protrusion protruding out of the first housing or the second housing, and the limit part, the limit protrusion, the extension part and the protrusion part are located on the same side of the leading-out structure for the power battery.

4. The extraction structure for the power battery as claimed in claim 1, wherein the second casing is provided with a positioning protrusion, and the locking member is provided with a positioning convex cap adapted to cooperate with the positioning protrusion.

5. The extraction structure for the power battery as claimed in claim 3, wherein the second casing is further provided with a limiting piece adapted to limit the transitional rotation of the locking member, and the limiting piece is obliquely extended from one end of the second casing close to the pivot shaft to a direction away from the pivot shaft.

6. The extraction structure for the power battery as claimed in claim 3, wherein the locking member is provided with a handle portion, and the handle portion and the extension portion are provided at two ends of the locking member.

7. The extraction structure for the power battery according to claim 3, wherein the plurality of limiting protrusions are arranged on the first shell and located on two sides of the protruding portion respectively;

the limiting clamping grooves are multiple and are formed in the second shell and correspond to the limiting bulges.

8. The extraction structure for a power battery as claimed in claim 1, wherein the first conductive member is a copper bar, the first conductive member includes a first conductive segment and a second conductive segment that are perpendicular to each other and connected to each other, a free end of the first conductive segment extends toward the second terminal, a free end of the second conductive segment passes through a side surface of the first terminal, and the second conductive member is a copper bar.

9. The extraction structure for a power battery as claimed in claim 8, wherein the first conductive member is injection molded with the first terminal;

the second conductive piece and the second terminal are subjected to injection molding;

the locking piece is an aluminum sheet.

10. A power cell, characterized by comprising the lead-out structure for a power cell according to any one of claims 1 to 9.

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