CN116207453A

CN116207453A - Battery pack

Info

Publication number: CN116207453A
Application number: CN202310497067.XA
Authority: CN
Inventors: 陈力刚
Original assignee: Shenzhen Huajie Power Technology Co ltd
Current assignee: Shenzhen Huajie Power Technology Co ltd
Priority date: 2023-05-05
Filing date: 2023-05-05
Publication date: 2023-06-02
Anticipated expiration: 2043-05-05
Also published as: CN116207453B

Abstract

The application relates to the technical field of batteries, in particular to a battery pack, which comprises a mounting frame, wherein two battery cells are formed in the mounting frame, the battery cells are arranged in the mounting frame in a penetrating manner, the battery cells are arranged in the battery cells arranged manner, two ends of the mounting frame are respectively provided with a conductive mechanism for realizing conductive communication of the two battery cells and limiting the battery cells in the battery cells arranged manner, and two ends of the mounting frame are respectively provided with a fixing mechanism for fixing the conductive mechanism on the mounting frame; the invention can realize the conductive connection of the battery cell through the tight contact between the conductive convex part of the conductive sheet and the battery cell, thereby being capable of replacing the traditional method of connecting the conductive sheet on the battery cell by welding, and being inconvenient for later maintenance and replacement; meanwhile, the invention can realize the conductive connection of two adjacent mounting frames through the lead piece so as to form a larger battery pack and improve the application range of the invention.

Description

Battery pack

Technical Field

The present application relates to the field of battery technologies, and in particular, to a battery pack.

Background

The battery packs are connected in series and in parallel, the voltage of each battery is required to be the same by the battery packs connected in parallel, the output voltage is equal to the voltage of one battery, the battery packs connected in parallel can provide stronger current, and the battery packs connected in series have no excessive requirements. The battery pack is generally assembled and connected by a plurality of single batteries through brackets and bus bars so as to meet the electricity requirements of various occasions.

The battery pack comprises four cylindrical battery cells, a first bracket and a second bracket, wherein a first fixing groove is formed on the inner side of the first bracket, and a plurality of clamping grooves are formed on the side wall of the first bracket; the second support includes main part, the inboard of main part is formed with the second fixed slot, the edge of main part extends four linking arms towards first support, four linking arms define the electric core accommodation space that the cross-section is approximately square, four linking arms correspond the middle part on each limit of square respectively, the linking arm is including the wide portion that is located its outside and the narrow portion that is located its inboard, the free end of narrow portion surpasss wide portion and outwards the evagination is equipped with buckle portion, the narrow portion stretches into the recess that forms between the cambered surface of adjacent electric core, the free end of narrow portion stretches into first fixed slot, buckle portion buckle is in the draw-in groove. The invention can improve the anti-falling performance of the battery pack; and the assembly process of the battery pack is simple, thereby being beneficial to improving the production efficiency.

Although the above prior art can improve the production efficiency, there are still some drawbacks:

1. the conductive sheets and the battery cells in the prior art are connected in a welding mode, and the problems of cold joint, welding falling and the like exist in welding, and particularly, poor contact between the conductive sheets and the battery cells is easily caused when the battery pack is collided by external force or falls down.

2. The cooling channel for the battery pack is not improved in the prior art, so that the problem that the battery cell is heated when the battery pack is used for a long time and damaged if heat dissipation is not performed in time is easily caused.

Disclosure of Invention

The application provides a group battery adopts following technical scheme:

the battery pack comprises a mounting frame, wherein two battery cells are formed in the mounting frame, the battery cells are placed in the battery cells through the mounting frame, the battery cells are placed in the battery cells, conductive mechanisms are arranged at two ends of the mounting frame and used for realizing conductive communication of the two battery cells and limiting the battery cells in the battery cells, and fixing mechanisms used for fixing the conductive mechanisms on the mounting frame are arranged at two ends of the mounting frame;

the two adjacent mounting frames are detachably assembled through a clamping mechanism, so that a plurality of mounting frames with electric cores are mutually assembled and mounted to form a new battery pack; two conductive mechanisms on two adjacent mounting frames are in conductive communication through the lead piece.

Preferably, the conductive mechanism comprises a conductive groove, the conductive groove is arranged at the end part of the mounting frame, a conductive sheet is arranged in the conductive groove, a conductive convex part is formed at the position, corresponding to the battery cell, of the conductive sheet and is used for being in conductive contact with the battery cell, and a conductive concave part is formed at the position, corresponding to the conductive convex part, of one side, away from the battery cell, of the conductive sheet;

the outer edge of the conductive sheet facing one side of the battery cell is extended with a connecting plate, the bottom of the conductive groove is provided with a connecting groove which is convenient for sliding and inserting the connecting plate, the side wall of the bottom of the connecting plate is provided with a through buckle hole, the connecting groove faces one side of the inside of the mounting frame and is opposite to the buckle hole, the connecting groove is provided with a buckle cavity, the buckle is characterized in that an elastic clamping strip is arranged in the buckle cavity, a triangular buckle which faces one side of the conducting strip and is inclined is arranged on one side of the clamping strip, which faces the buckle hole, the triangular buckle is arranged in the buckle hole, and a control hole penetrating through the installation frame is formed in one side, which faces away from the buckle cavity, of the connecting groove and is opposite to the triangular buckle.

Preferably, a type groove is formed in the outer side wall of the mounting frame and opposite to the control hole, and a type strip is slidably arranged in the type groove and used for blocking the control hole; the side walls of the two vertical ends of the type groove are provided with triangular abutting blocks, the inclined surfaces of the abutting blocks face to one side of the type groove horizontal section, and abutting holes are formed in the vertical section of the type strip and correspond to the abutting blocks and are used for being matched with the abutting blocks in a clamping mode to fix the type strip in the type groove;

the type groove deviates from one side of type strip and deviates from the one end of installing frame and is provided with the operation bevel connection that just has to buckle type strip, type strip corresponds operation bevel connection department and is provided with rather than complex cooperation bevel connection, and the inclined plane of cooperation bevel connection is towards one side of installing frame.

Preferably, the fixing mechanism comprises a cover pressing plate, the cover pressing plate is arranged at two ends of the installation frame and used for fixing the conductive mechanism on the installation frame, and L-shaped plugboards are arranged at four corners of the cover pressing plate and used for being in plug-in fit with L-shaped slots formed at corners of the end part of the installation frame;

the two ends of the L-shaped plugboard are respectively provided with a plugboard cavity, the plugboards are slidably arranged in the plugboard cavities and are used for being in plug-in fit with the plugholes formed in the side walls of the L-shaped plugboards, elastic abutting pieces are arranged between the plugboards and the plugboard cavities and used for driving the plugboards to move towards the plugholes, and an abutting inclined plane which is convenient for the L-shaped plugboards to be inserted into the L-shaped plugboards is arranged on one side of the middle part of the installation frame;

the cutting is provided with the control push bar in the one end that deviates from the mounting frame, the bolt chamber is offered the gliding control spout of control push bar of being convenient for in one side that deviates from the mounting frame to the slip of control push bar in the control spout slip control cutting in the bolt intracavity.

Preferably, an inner concave cavity is formed at the position, facing the mounting frame, of the cover pressing plate and opposite to the conductive concave part, and a propping assembly is arranged in the inner concave cavity and used for driving the conductive convex part to prop against the battery cell;

the tight subassembly is supported in the tight subassembly including interior cavity internal rotation installs adjusting screw, and adjusting screw runs through interior cavity, adjusting screw is located the interior cavity threaded connection and has adjusting panel, just adjusting screw slides and sets up in interior cavity and be on the guide bar of vertical distribution, adjusting panel is provided with the tight board of support towards one side of electrically conductive concave part, just be connected with between tight board and the adjusting panel and support tight spring for order about to support tight board and remove towards electrically conductive concave part.

Preferably, the lead piece comprises a lead sheet, and both ends of the lead sheet are provided with contact parts for contacting and electrifying the conductive concave parts of the conductive sheet; the contact part comprises a contact convex part and a contact concave part, the contact convex part faces one side of the mounting frame, the contact concave part faces one side of the contact convex part, and the contact convex part is in contact fit with the conductive concave part;

the cover pressing plates are arranged on the side, facing the mounting frame, of the inner concave cavity serving as a center, and conducting channels communicated with the inner concave cavity are formed along the length direction and the width direction of the mounting frame, the lead guide sheets are respectively arranged in the conducting channels of the two cover pressing plates, the contact convex parts of the lead guide sheets are arranged in the conducting concave parts of the conducting sheets, and the abutting plates abut against the contact concave parts and are used for abutting the lead guide sheets on the conducting sheets;

the depth of the conductive channel is less than the depth of the recessed cavity to limit movement of the contact protrusion of the conductive tab out of the conductive recess.

Preferably, a ventilation cooling channel is arranged in the mounting frame, so that the air can cool the battery cells in the mounting frame in an air-cooling way through the ventilation cooling channel;

the ventilation cooling channel comprises a ventilation cavity formed in the installation frame, a plurality of connecting plates are arranged in the ventilation cavity and between the two battery core placing cavities, a plurality of heat conducting strips are circumferentially arranged in the ventilation cavity and along the battery core placing cavities, and a plurality of concave-convex structures for increasing contact areas are respectively arranged on the inner side wall of the ventilation cavity facing one side of the battery core placing cavity, the side wall of the heat conducting strip and the side wall of the connecting plates;

a plurality of ventilation holes are uniformly formed in the outer side wall of the mounting frame, so that external air enters and exits the ventilation cavity through the ventilation holes, and a plurality of exchange holes which are convenient for air exchange are formed in the connecting plate and the heat conducting strip.

Preferably, the clamping mechanism comprises clamping frames and clamping blocks, a plurality of clamping frames and a plurality of clamping blocks are respectively arranged on two opposite outer side walls of the mounting frame, the positions of the clamping frames correspond to the positions of the clamping blocks one by one, and the clamping blocks are fixed on the outer wall of the mounting frame through auxiliary blocks;

the clamping frame is provided with a clamping groove with an opening at the upper end, the clamping groove is in sliding connection with an adjacent clamping block on the mounting frame, one side of the clamping frame, which is away from the mounting frame, is provided with a guide chute communicated with the clamping groove, and the guide chute is in sliding fit with an auxiliary block of the clamping block.

Preferably, the clamping block lower extreme and towards the one end in the installation frame outside be provided with the breach, and breach department is provided with the elastic fastener, one side that elastic fastener bottom and deviate from the breach is provided with the hasp piece that the bottom is the inclined plane, the clamping frame corresponds hasp piece department and has seted up the hasp hole that link up, just the latch segment joint is in the hasp hole for restriction clamping block roll-off joint groove.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the invention can realize the conductive connection of the battery cell through the tight contact between the conductive convex part of the conductive sheet and the battery cell, thereby being capable of replacing the traditional method of connecting the conductive sheet on the battery cell by welding, and being inconvenient for later maintenance and replacement; meanwhile, the invention can realize the conductive connection of two adjacent mounting frames through the lead piece so as to form a larger battery pack and improve the application range of the invention.

2. The invention is fixed with the installation frame through the connection board in a plugging way, so that the conductive convex part is in conductive connection with the battery cell, and meanwhile, the conductive sheet is pressed through the cover pressing plate of the fixing mechanism, so that the contact conduction between the conductive sheet and the battery cell is further ensured; the contact conduction between the conductive convex part and the battery core can be further realized through the abutting component on the cover pressing plate; and the abutting component can also realize the electrifying connection of the lead sheet, the conductive sheet and the battery cell.

3. The invention is provided with the ventilation cavity in the mounting frame, and the ventilation cavity is communicated with the outside through the ventilation holes, so that the ventilation cavity can exchange heat with the outside wind, and the heat dissipation effect of the battery cell is achieved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic structural view of the conductive mechanism of the present invention.

Fig. 4 is an enlarged view of a portion of fig. 3 a of the present invention.

Fig. 5 is a schematic structural view of the fixing mechanism of the present invention.

Fig. 6 is an enlarged view of a portion of the invention at B of fig. 5.

Fig. 7 is a schematic structural view of a fixing mechanism according to the present invention.

Fig. 8 is a schematic structural view of the tightening assembly of the present invention.

Fig. 9 is an enlarged view of a portion of fig. 8C in accordance with the present invention.

Fig. 10 is a schematic structural view of the clamping mechanism of the present invention.

Fig. 11 is a partial enlarged view of fig. 10 at D according to the present invention.

Fig. 12 is a schematic structural view of a lead member of the present invention.

Fig. 13 is a schematic structural view of the ventilation cooling passage of the present invention.

Fig. 14 is an enlarged view of a portion of fig. 13 at E in accordance with the present invention.

Reference numerals illustrate: 1. a mounting frame; 2. a cell placement cavity; 21. a battery cell; 3. a conductive mechanism; 4. a fixing mechanism; 5. a clamping mechanism; 6. a lead; 31. a conductive groove; 32. a conductive sheet; 321. a conductive protruding portion; 322. a conductive recess; 33. a connecting plate; 34. a connecting groove; 35. a snap hole; 36. a clasp cavity; 37. clamping strips; 38. triangular buckle; 39. a control hole; 301. type grooves; 302. type strips; 303. a collision block; 304. a contact hole; 305. operating the bevel connection; 306. matching with a bevel; 41. covering and closing a pressing plate; 42. an L-shaped plugboard; 43. an L-shaped slot; 421. a plug pin cavity; 422. cutting; 431. a jack; 423. an elastic abutting member; 424. an abutting inclined plane; 425. controlling the pushing bar; 426. controlling the chute; 44. an inner cavity; 45. a tightening assembly; 451. adjusting a screw; 452. an adjustment panel; 453. a guide rod; 454. a pressing plate; 455. a spring is abutted tightly; 61. a lead tab; 62. a contact protrusion; 63. a contact recess; 46. a conductive pathway; 7. a ventilation cooling channel; 71. a ventilation chamber; 72. an abutting plate; 73. a heat conducting strip; 74. a concave-convex structure; 75. a vent hole; 76. exchange holes; 51. a clamping frame; 52. a clamping block; 53. an auxiliary block; 54. a clamping groove; 55. a guide chute; 56. an elastic fastener; 57. a locking block; 58. and a locking hole.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-14.

Embodiment one:

referring to fig. 1-2, the embodiment of the application discloses a battery pack, which comprises a mounting frame 1, wherein two battery cells are formed in the mounting frame 1 and placed in a cavity 2, the battery cells are placed in the cavity 2 by penetrating through the mounting frame 1, a battery cell 21 is placed in the cavity 2, two ends of the mounting frame 1 are provided with conducting mechanisms 3 for realizing conducting communication of the two battery cells 21 and limiting the battery cells 21 in the cavity 2, and two ends of the mounting frame 1 are provided with fixing mechanisms 4 for fixing the conducting mechanisms 3 on the mounting frame 1;

according to the invention, two battery cells 21 in the battery cell placing cavity 2 can be connected and conducted through the conducting mechanism 3, meanwhile, the conducting mechanism 3 can be further fixed on the mounting frame 1 through the fixing mechanism 4, and the conducting communication between the two battery cells 21 is ensured, so that a battery pack is formed.

The two adjacent mounting frames 1 are detachably assembled through the clamping mechanism 5 so as to realize the mutual assembly and installation of a plurality of mounting frames 1 provided with the battery cells 21, thereby forming a new battery pack; two conductive mechanisms 3 on two adjacent mounting frames 1 are in conductive communication through a lead piece 6;

when the battery pack needs to be enlarged, more mounting frames 1 provided with the battery cells 21 are added, the clamping and fixing of two adjacent mounting frames 1 are realized through the clamping mechanisms 5, and under the conduction of the lead piece 6, the conduction mechanisms 3 on the two mounting frames 1 are driven to conduct and communicate, namely, the conduction of the battery cells 21 is realized, and then the larger battery pack is formed.

After the battery cell 21 is placed in the battery cell placing cavity 2, in order to ensure that the two are in conductive communication, the two are in contact connection through the conductive mechanism 3; specifically, referring to fig. 2-4, the conductive mechanism 3 includes a conductive groove 31, the conductive groove 31 is formed at an end of the mounting frame 1, a conductive sheet 32 is disposed in the conductive groove 31, a conductive protrusion 321 is formed at a position of the conductive sheet 32 corresponding to the battery core 21, and is used for electrically contacting the battery core 21, a conductive recess 322 is formed at a position of the conductive sheet 32 corresponding to the conductive protrusion 321, and a side of the conductive sheet 32 facing away from the battery core 21;

the conducting strip 32 has connecting plate 33 towards the outer edge extension of electricity core 21 one side, connecting groove 34 that is convenient for connecting plate 33 slip grafting has been seted up to conducting groove 31 bottom, connecting plate 33 bottom lateral wall has seted up link up buckle hole 35, connecting groove 34 is towards the inside one side of installing frame 1 and just buckle hole 35 department has seted up buckle chamber 36, be provided with elastic card strip 37 in the buckle chamber 36, and the card strip 37 is provided with towards the triangle buckle 38 of conducting strip 32 one side for the inclined plane towards one side, and triangle buckle 38 is arranged in buckle hole 35.

In a specific installation process, the connection plate 33 on the conductive sheet 32 is aligned with the connection groove 34 in the conductive groove 31 and is inserted into the connection groove 34, so that the conductive sheet 32 is inserted into the conductive groove 31, and the conductive protruding portion 321 of the conductive sheet 32 is ensured to be in contact with the electric core 21, so that the conductive communication of the two electric cores 21 is realized.

In the process of sliding the connecting plate 33 towards the bottom in the connecting groove 34, the buckling holes 35 on the connecting plate 33 are in interference fit with the triangular buckling 38 on the buckling strips 37 in the buckling cavity 36 until the triangular buckling 38 is buckled into the buckling holes 35, so that the connecting plate 33 is buckled in the connecting groove 34, and the conductive sheet 32 is further fixedly connected in a plugging manner.

In order to facilitate the later disassembly of the conductive sheet 32, a control hole 39 penetrating the mounting frame 1 is formed on the side, facing the triangular buckle 38, of the connecting groove 34, facing away from the buckle cavity 36, so that the triangular buckle 38 is pushed by the control hole 39 to enable the connecting plate 33 to slide out of the connecting groove 34.

Meanwhile, in order to prevent the triangular buckle 38 from being separated from the buckle hole 35 caused by the false touching of the triangular buckle 38, a type groove 301 is formed on the outer side wall of the mounting frame 1 and is opposite to the control hole 39, and a type strip 302 is slidably arranged in the type groove 301 and used for blocking the control hole 39; the two vertical end side walls of the type groove 301 are provided with triangular type abutting blocks 303, the inclined surfaces of the abutting blocks 303 face to one side of the horizontal section of the type groove 301, abutting holes 304 are formed in the vertical section of the type strip 302 and correspond to the abutting blocks 303, and the abutting holes 304 are used for being matched with the abutting blocks 303 in a clamping mode to fix the type strip 302 in the type groove 301.

The type strip 302 is inserted into the type groove 301, so that the control hole 39 is plugged by the type strip 302, wherein the type strip 302 is in interference clamping connection with the interference block 303 on the side wall of the type groove 301 through the interference hole 304, so that the type strip 302 is clamped in the type groove 301, and the type strip 302 is prevented from being separated from the type groove 301.

In order to separate the type strip 302 from the type groove 301 at a later stage, one side of the type groove 301 away from the type strip 302 and one end away from the mounting frame 1 are provided with operation bevel ports 305 for buckling the type strip 302, the position, corresponding to the operation bevel ports 305, of the type strip 302 is provided with a matched bevel port 306 matched with the operation bevel port, and the inclined surface of the matched bevel port 306 faces one side of the mounting frame 1.

The inclined opening 305 is operated to be buckled and matched with the inclined opening 306, so that the abutting hole 304 on the type strip 302 is separated from the abutting block 303, the type strip 302 can be pulled out of the type groove 301, the limit of the connecting groove 34 on the connecting plate 33 can be released through the control hole 39, and the conductive sheet 32 can be taken out of the conductive groove 31.

After the installation of the conductive mechanism 3 is completed and the conductive communication between the two electric cores 21 is ensured, the conductive mechanism 3 is further limited on the installation frame 1 through the fixing mechanism 4; specifically, referring to fig. 5-7, the fixing mechanism 4 includes a cover pressing plate 41, where the cover pressing plate 41 is disposed at two ends of the installation frame 1 and is used to fix the conductive mechanism 3 on the installation frame 1, and four corners of the cover pressing plate 41 are provided with L-shaped plugboards 42 for being in plug-in fit with L-shaped slots 43 formed at corners of an end of the installation frame 1; the cover pressing plate 41 is inserted into the L-shaped slot 43 through the L-shaped insertion plate 42 to fix the cover pressing plate 41 on the mounting frame 1, and the guide piece is clamped between the cover pressing plate 41 and the mounting frame 1, so that the conductive connection between the conductive piece 32 and the battery cell 21 is further ensured.

The two ends of the L-shaped plugboard 42 are provided with a plugboard cavity 421, the plugboard cavity 421 is internally provided with a plugboard 422 in a sliding manner and is used for being in plug-in fit with a plughole 431 formed in the side wall of the L-shaped plugboard 43, an elastic abutting piece 423 is arranged between the plugboard 422 and the plugboard cavity 421 and used for driving the plugboard 422 to move towards the plughole 431, and an abutting inclined plane 424 which is convenient for the L-shaped plugboard 42 to be inserted into the L-shaped plugboard 43 is arranged on one side of the plugboard 422 towards the middle part of the installation frame 1;

when the L-shaped insert plate drives the insert 422 to slide in the L-shaped slot 43 and the insert 422 moves to the insertion hole 431, the insert 422 is driven to move into the insertion hole 431 by the pushing of the elastic interference piece 423 so as to limit the L-shaped insert plate 42 in the L-shaped slot 43, thereby fixing the cover pressing plate 41 on the mounting frame 1.

In order to facilitate the subsequent detachment of the covering pressing plate 41 from the mounting frame 1, a control pushing bar 425 is arranged at one end of the cutting 422 away from the mounting frame 1, and a control sliding chute 426 facilitating the sliding of the control pushing bar 425 is arranged at one side of the bolt cavity 421 away from the mounting frame 1, so that the control pushing bar 425 slides in the control sliding chute 426 to control the sliding of the cutting 422 in the bolt cavity 421.

Referring to fig. 7-9, in order to further press the conductive sheet 32 to ensure the conductive contact between the conductive protrusion 321 of the conductive sheet 32 and the battery cell 21, the present invention forms an inner cavity 44 at the side of the cover pressing plate 41 facing the mounting frame 1 and opposite to the conductive recess 322, and a tightening component 45 is disposed in the inner cavity 44 for driving the conductive protrusion 321 to abut against the battery cell 21;

specifically, the abutting assembly 45 includes an adjusting screw 451 rotatably mounted in the inner cavity 44, the adjusting screw 451 penetrates through the inner cavity 44, the adjusting screw 451 is located in the inner cavity 44 and is in threaded connection with an adjusting panel 452, the adjusting screw 451 is slidably disposed on a guide rod 453 disposed in the inner cavity 44 and distributed vertically, an abutting plate 454 is disposed on one side of the adjusting panel 452 facing the conductive recess 322, and an abutting spring 455 is connected between the abutting plate 454 and the adjusting panel 452 and used for driving the abutting plate 454 to move toward the conductive recess 322.

In the implementation process, when the cover pressing plate 41 is mounted on the mounting frame 1, the abutting plate 454 is placed in the conductive concave portion 322, and the abutting plate 454 is driven to abut against the conductive concave portion 322 under the action of the abutting spring 455, so that the conductive convex portion 321 can be further driven to be in conductive connection with the electric core 21; meanwhile, the adjusting screw 451 can be screwed to drive the adjusting panel 452 to move up and down, so that the abutting force of the abutting plate 454 against the conductive concave portion 322 can be changed.

In the above-described process, the assembly of the battery pack to one mounting frame 1 is completed, if the battery pack needs to be enlarged, it is necessary to dock and fix the plurality of mounting frames 1 by the clamping mechanism 5, and at the same time, it is also necessary to ensure conduction of electricity to the adjacent two mounting frames 1, so that the fixing mechanism 4 is temporarily not mounted on the mounting frames 1 before the adjacent two mounting frames 1 are dock-assembled, and the fixing mechanism 4 is mounted after the lead member 6 is assembled.

10-11, the clamping mechanism 5 comprises a clamping frame 51 and clamping blocks 52, a plurality of clamping frames 51 and a plurality of clamping blocks 52 are respectively arranged on two opposite outer side walls of the installation frame 1, the positions of the clamping frames 51 correspond to the positions of the clamping blocks 52 one by one, and the clamping blocks 52 are fixed on the outer wall of the installation frame 1 through auxiliary blocks 53;

the clamping frame 51 is provided with a clamping groove 54 with an opening at the upper end, the clamping groove 54 is in sliding connection with the clamping block 52 on the adjacent installation frame 1, one side of the clamping frame 51, which is away from the installation frame 1, is provided with a guide chute 55 communicated with the clamping groove 54, and the guide chute 55 is in sliding fit with the auxiliary block 53 of the clamping block 52.

In the specific installation process, one end of the installation frame 1 provided with the clamping block 52 is aligned with the clamping frame 51 arranged on the adjacent installation frame 1 and is spliced in the clamping groove 54 from top to bottom so as to realize the clamping and fixing of the two adjacent installation frames 1.

In order to prevent the later-stage clamping block 52 from separating from the clamping groove 54 and separating two adjacent installation frames 1, a notch is arranged at the lower end of the clamping block 52 and towards one end of the outer side of the installation frames 1, an elastic fastener 56 is arranged at the notch, a locking block 57 with an inclined surface at the bottom is arranged at one side of the bottom of the elastic fastener 56, which is away from the notch, a through locking hole 58 is formed in the clamping frame 51 corresponding to the locking block 57, and the locking block 57 is clamped in the locking hole 58 and used for limiting the clamping block 52 to slide out of the clamping groove 54.

When the elastic fastener 56 slides along with the clamping block 52 towards the clamping groove 54, the locking block 57 on the elastic fastener 56 is clamped into the locking hole 58 under the collision of the inclined plane, so that the locking block 57 can be limited in the locking hole 58, and the clamping block 52 is limited in the clamping groove 54; when the locking piece 57 is required to be detached, the locking piece 57 is pushed through the through locking hole 58 until the locking piece 57 is withdrawn from the locking piece 57, so that the restriction on the clamping piece 52 is released, and the clamping piece 52 can be pulled out from the clamping groove 54.

Next, referring to fig. 12 in combination with fig. 8, after the clamping and fixing of the two adjacent mounting frames 1 are completed, conducting electricity through the lead member 6; specifically, the lead member 6 includes a lead piece 61, and both ends of the lead piece 61 are provided with contact portions for contacting and energizing with the conductive concave portions 322 of the conductive piece 32; the contact portion includes a contact convex portion 62 and a contact concave portion 63, and the contact convex portion 62 faces one side of the mounting frame 1, the contact concave portion 63 faces one side of the contact convex portion 62, and the contact convex portion 62 is in contact with the conductive concave portion 322; the contact protrusions 62 at both ends of the lead pieces 61 are respectively placed in the conductive recesses 322 on the adjacent two mounting frames 1 to achieve overlapping energization of the adjacent two conductive pieces 32.

The side of the cover pressing plate 41 facing the mounting frame 1 is centered on the inner cavity 44 and is formed with conductive channels 46 (shown in fig. 7) communicating with the inner cavity 44 along both the length direction and the width direction of the mounting frame 1, the lead guide pieces 61 are respectively placed in the conductive channels 46 of the two cover pressing plates 41, and the contact convex portions 62 of the lead guide pieces 61 are placed in the conductive concave portions 322 of the conductive pieces 32, and the abutting plates 454 abut in the contact concave portions 63 for abutting the lead guide pieces 61 on the conductive pieces 32;

after the lead piece 61 is mounted, the covering pressing plate 41 on the fixing mechanism 4 is mounted on the mounting frame 1, the lead piece 61 is restrained in the conduction channel 46 through the conduction channel 46 on the covering pressing plate 41, and then the abutting plate 454 abuts against the contact concave portion 63 of the lead piece 61, so that the lead piece 61 is abutted against the conductive piece 32, and the conductive piece 32 can be driven to further abut against the cell 21.

The depth of the conductive channels 46 is less than the depth of the interior cavity 44 to limit movement of the contact protrusions 62 of the conductive tabs 61 out of the conductive recesses 322.

Embodiment two:

on the basis of the first embodiment, because the battery pack has a heating condition of the battery cell 21 during operation and needs to timely dissipate heat of the battery cell 21, the invention is provided with the ventilation cooling channel 7 in the installation frame 1 so that air can cool the battery cell 21 in the installation frame 1 by air cooling through the ventilation cooling channel 7;

13-14, the ventilation cooling channel 7 comprises a ventilation cavity 71 arranged in the installation frame 1, a plurality of butt plates 72 arranged in the ventilation cavity 71 and between the two battery core placing cavities 2, a plurality of heat conducting strips 73 arranged in the ventilation cavity 71 along the circumference of the battery core placing cavities 2, and a plurality of concave-convex structures 74 for increasing the contact area arranged on the inner side wall of the ventilation cavity 71 facing to one side of the battery core placing cavities 2, the side wall of the heat conducting strips 73 and the side wall of the butt plates 72;

a plurality of ventilation holes 75 are uniformly formed in the outer side wall of the mounting frame 1, so that external air can enter and exit the ventilation cavity 71 through the ventilation holes 75, and a plurality of exchange holes 76 which are convenient for air exchange are formed in the butt plate 72 and the heat conducting strip 73.

In a specific operation process, the heat of the battery cell 21 is emitted to the inner side wall of the battery cell placing cavity 2 when the battery cell generates heat, and then is transferred to the inner side wall of the ventilation cavity 71 facing the battery cell placing cavity 2, and when external wind enters into the ventilation cavity 71 through the ventilation hole 75 of the mounting frame 1, the external wind blows the inner side wall of the ventilation cavity 71 to take away the heat energy thereon, so as to realize a heat dissipation function.

The heat conducting strip 73 and the concave-convex structure 74 arranged on the inner side wall of the ventilation cavity 71, the side wall of the heat conducting strip 73 and the side wall of the butt plate 72 are arranged to increase the contact area of external wind, thereby improving the heat dissipation effect.

And the invention improves the flowing effect of the external wind in the ventilation cavity 71 through the exchange holes 76 so as to achieve better heat dissipation effect.

The implementation principle of the invention is as follows:

(1): placing the battery cell 21 into the battery cell placing cavity 2 on the mounting frame 1, then pressing the conductive sheet 32 in the conductive groove 31, and fixing the battery cell on the mounting frame 1 through the connecting plate 33;

(2): after the conductive sheet 32 is fixed and the two electric cores 21 can be electrically connected through the conductive sheet 32, the conductive sheet 32 is further limited on the mounting frame 1 through the cover pressing plate 41 on the fixing mechanism 4, and the cover pressing plate 41 is fixed on the mounting frame 1 through the L-shaped plugboard 42;

(3): if a plurality of mounting frames 1 are required to be clamped and fixed, two adjacent mounting frames 1 are clamped and fixed through a clamping mechanism 5 to form a whole;

(4): the lead piece 61 is then connected in the conductive recess 322 on the two adjacent mounting frames 1, so that the conductive connection of the two adjacent mounting frames 1 is achieved, the lead piece 61 is then fixed on the conductive piece 32 by the fixing mechanism 4, and the conductive piece 61, the conductive piece 32 and the electric core 21 are electrically connected by the abutting component 45.

The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.

Claims

1. A battery pack comprising a mounting frame (1), characterized in that: two battery cells are formed in the mounting frame (1) and are placed in the cavity (2), the battery cells (21) are placed in the battery cells placed in the cavity (2) through the mounting frame (1), and the two ends of the mounting frame (1) are respectively provided with a conductive mechanism (3) for realizing conductive communication of the two battery cells (21) and limiting the battery cells (21) in the battery cells placed in the cavity (2), and the two ends of the mounting frame (1) are respectively provided with a fixing mechanism (4) for fixing the conductive mechanism (3) on the mounting frame (1); the two adjacent mounting frames (1) are detachably assembled through a clamping mechanism (5) so as to realize the mutual assembly and installation of a plurality of mounting frames (1) provided with the battery cells (21) to form a new battery pack; two conductive mechanisms (3) on two adjacent mounting frames (1) are in conductive communication through a lead piece (6).

2. A battery pack according to claim 1, wherein: the conductive mechanism (3) comprises a conductive groove (31), the conductive groove (31) is formed at the end part of the mounting frame (1), a conductive sheet (32) is arranged in the conductive groove (31), a conductive convex part (321) is formed at the position of the conductive sheet (32) corresponding to the battery core (21) and is used for being in conductive contact with the battery core (21), and a conductive concave part (322) is formed at the position of the conductive sheet (32) which is away from one side of the battery core (21) and corresponds to the conductive convex part (321); the utility model discloses a battery cell, including electric core (21) and electric plate (32), electric plate (32) are provided with connecting plate (33) towards the outer edge extension of electric core (21) one side, connecting plate (33) sliding connection's of being convenient for spread groove (34) have been seted up to electric plate (31) bottom, link up buckle hole (35) have been seted up to connecting plate (33) bottom lateral wall, buckle chamber (36) have been seted up to buckle hole (35) department towards one side of installation frame (1) inside just, be provided with elastic card strip (37) in buckle chamber (36), and card strip (37) are provided with triangular buckle (38) towards electric plate (32) one side for the inclined plane towards buckle hole (35), and triangular buckle (38) are arranged in buckle hole (35), one side that connecting plate (34) deviate from buckle chamber (36) just right triangular buckle (38) department has seted up control hole (39) that run through installation frame (1).

3. A battery pack according to claim 2, wherein: type grooves (301) are formed in the outer side wall of the mounting frame (1) and are opposite to the control holes (39), type strips (302) are arranged in the type grooves (301) in a sliding mode and used for blocking the control holes (39); two vertical end side walls of the type groove (301) are provided with triangular type abutting blocks (303), inclined planes of the abutting blocks (303) face one side of a horizontal section of the type groove (301), abutting holes (304) are formed in the vertical section of the type strip (302) and correspond to the abutting blocks (303) and are used for being in clamping fit with the abutting blocks (303) to fix the type strip (302) in the type groove (301); one side of the type groove (301) deviating from the type strip (302) and one end deviating from the installation frame (1) is provided with an operation bevel opening (305) for conveniently buckling the type strip (302), a matching bevel opening (306) matched with the type strip (302) is arranged at the position corresponding to the operation bevel opening (305), and the inclined surface of the matching bevel opening (306) faces one side of the installation frame (1).

4. A battery pack according to claim 1, wherein: the fixing mechanism (4) comprises a cover pressing plate (41), the cover pressing plate (41) is arranged at two ends of the installation frame (1) and used for fixing the conductive mechanism (3) on the installation frame (1), and L-shaped plugboards (42) are arranged at four corners of the cover pressing plate (41) and are used for being in plug-in fit with L-shaped slots (43) formed in corners of the end part of the installation frame (1); the two ends of the L-shaped inserting plate (42) are provided with inserting pin cavities (421), inserting strips (422) are slidably arranged in the inserting pin cavities (421) and are used for being in inserting fit with inserting holes (431) formed in the side walls of the L-shaped inserting grooves (43), elastic interference pieces (423) are arranged between the inserting strips (422) and the inserting pin cavities (421) and used for driving the inserting strips (422) to move towards the inserting holes (431), and an interference inclined plane (424) which is convenient for the L-shaped inserting plate (42) to be inserted into the L-shaped inserting grooves (43) is arranged on one side, facing the middle of the mounting frame (1), of the inserting strips (422); one end of the cutting (422) deviating from the mounting frame (1) is provided with a control pushing strip (425), and one side of the bolt cavity (421) deviating from the mounting frame (1) is provided with a control sliding chute (426) which is convenient for controlling the pushing strip (425) to slide in the control sliding chute (426) so as to control the sliding of the cutting (422) in the bolt cavity (421).

5. A battery pack according to claim 4, wherein: an inner concave cavity (44) is formed at the position, facing the mounting frame (1), of the cover pressing plate (41) and opposite to the conductive concave part (322), and a tight supporting component (45) is arranged in the inner concave cavity (44) and used for driving the conductive convex part (321) to abut against the battery cell (21); the tight subassembly (45) supports includes that interior cavity (44) rotation is installed adjusting screw (451), and adjusting screw (451) runs through interior cavity (44), threaded connection has adjusting plate (452) in adjusting screw (451) are located interior cavity (44), just adjusting screw (451) slip sets up in cavity (44) and on guide bar (453) for vertical distribution, one side of adjusting plate (452) towards electrically conductive concave part (322) is provided with supports tight board (454), just be connected with between tight board (454) and adjusting plate (452) and support tight spring (455) for order about to support tight board (454) and remove towards electrically conductive concave part (322).

6. A battery pack according to claim 5, wherein: the lead piece (6) comprises a lead sheet (61), wherein both ends of the lead sheet (61) are provided with contact parts for contacting and electrifying with the conductive concave parts (322) of the conductive sheet (32); the contact part comprises a contact convex part (62) and a contact concave part (63), the contact convex part (62) faces one side of the mounting frame (1), the contact concave part (63) faces one side of the contact convex part (62), and the contact convex part (62) is in contact with the conductive concave part (322); the cover pressing plates (41) are arranged on one side of the mounting frame (1) facing the inner concave cavities (44) and are provided with conducting channels (46) communicated with the inner concave cavities (44) along the length direction and the width direction of the mounting frame (1), the lead guide pieces (61) are respectively arranged in the conducting channels (46) of the two cover pressing plates (41), the contact convex parts (62) of the lead guide pieces (61) are arranged in the conducting concave parts (322) of the conducting pieces (32), and the abutting plates (454) abut against the contact concave parts (63) and are used for abutting the lead guide pieces (61) on the conducting pieces (32); the depth of the conductive channel (46) is less than the depth of the interior cavity (44) to limit movement of the contact tab (62) of the conductive tab (61) out of the conductive recess (322).

7. A battery pack according to claim 1, wherein: a ventilation cooling channel (7) is arranged in the mounting frame (1) so that air can cool the battery cell (21) in the mounting frame (1) through the ventilation cooling channel (7) in an air-cooling way; the ventilation cooling channel (7) comprises a ventilation cavity (71) arranged in a mounting frame (1), a plurality of butt joint plates (72) are arranged in the ventilation cavity (71) and between two battery core placing cavities (2), a plurality of heat conducting strips (73) are arranged in the ventilation cavity (71) along the circumference of the battery core placing cavities (2), and a plurality of concave-convex structures (74) for increasing the contact area are arranged on the inner side wall of the ventilation cavity (71) facing to one side of the battery core placing cavities (2), the side wall of the heat conducting strips (73) and the side wall of the butt joint plates (72); a plurality of ventilation holes (75) are uniformly formed in the outer side wall of the mounting frame (1) so that external air can enter and exit the ventilation cavity (71) through the ventilation holes (75), and a plurality of exchange holes (76) which are convenient for air exchange are formed in the butt joint plate (72) and the heat conducting strip (73).

8. A battery pack according to claim 1, wherein: the clamping mechanism (5) comprises clamping frames (51) and clamping blocks (52), a plurality of clamping frames (51) and a plurality of clamping blocks (52) are respectively arranged on two opposite outer side walls of the mounting frame (1), the positions of the clamping frames (51) correspond to the positions of the clamping blocks (52) one by one, and the clamping blocks (52) are fixed on the outer wall of the mounting frame (1) through auxiliary blocks (53); the clamping frame (51) is provided with a clamping groove (54) with an opening at the upper end, the clamping groove (54) is in sliding connection with a clamping block (52) on the mounting frame (1) adjacent to the clamping groove, one side of the clamping frame (51) deviating from the mounting frame (1) is provided with a guide chute (55) communicated with the clamping groove (54), and the guide chute (55) is in sliding fit with an auxiliary block (53) of the clamping block (52).

9. A battery pack as in claim 8, wherein: the utility model discloses a mounting frame, including installation frame (1) and clamping frame (52), clamping frame (51) are provided with clamping frame (57), clamping frame (51) are provided with clamping hole (58) that link up in clamping frame (51) corresponding clamping block (57), just clamping block (57) joint is in clamping hole (58) for limiting clamping block (52) roll-off joint groove (54) in the one end of clamping block (52) lower extreme and towards the outside of installation frame (1), and breach department is provided with elastic fastener (56), one side that elastic fastener (56) bottom just deviates from the breach is provided with the bottom and is inclined plane.