CN207967100U

CN207967100U - Battery modules

Info

Publication number: CN207967100U
Application number: CN201820237677.0U
Authority: CN
Inventors: 刘小民; 郭鹏亮; 汪超
Original assignee: Shenzhen Clou Electronics Co Ltd
Current assignee: Shenzhen Clou Electronics Co Ltd
Priority date: 2018-02-10
Filing date: 2018-02-10
Publication date: 2018-10-12
Anticipated expiration: 2028-02-10

Abstract

The utility model provides a kind of battery modules comprising at least two frames being stacked, at least two screw rods, each screw rod run through at least two frames；At least two accommodating cavities are at least arranged side by side on each frame, a battery core is housed in each accommodating cavity, elastic buffer structure is additionally provided in accommodating cavity, elastic buffer structure includes comprehensive adhesive layer, elastic cord breaker and gap adhesive layer, comprehensive one side of adhesive layer is connect with the interior cohesive of accommodating cavity, the another side of comprehensive adhesive layer and being fixedly connected on one side for elastic cord breaker；The one side of gap adhesive layer is fixedly connected with the another side of elastic cord breaker, and there are gaps between the binding part of gap adhesive layer another side, and is connect with battery core side viscosity by binding part.The utility model in accommodating cavity by being arranged elastic buffer structure so that in use, elastic cord breaker can eliminate the stress between battery core and accommodating cavity to battery core, the probability of battery core damage be reduced, to extend the service life of battery core.

Description

Battery modules

Technical field

The utility model is related to technical field of energy storage more particularly to a kind of battery modules.

Background technology

Soft-package battery refers to the lithium battery that shell is flexible packing material (be usually aluminum-plastic composite membrane), is had small, again A variety of advantages such as light, higher than energy, the safe, flexible design of amount.Soft Roll power battery (or soft pack cell) is adopted in structure With laminated aluminum film, battery plus-negative plate also uses battery tab structure, is different from usual plastic housing and metal housing battery.

Current battery modules are mostly that aluminium sheet and multiple module frameworks combine to be formed by long bolt, in each module framework Battery core is installed, is connected by a snap between adjacent module framework, and can flexibly be spelled according to different capacity and voltage request Pick out required battery modules.

Battery modules in use, since there are gaps between battery core and frame, so in mobile electrical appliance (example Such as：Electric vehicle) when, the factors such as inertia cause battery core in gap jitter, and repeatedly shake can cause battery core easily damaged.

Utility model content

The utility model provides a kind of battery modules, to solve existing battery modules, repeatedly shake in use Cause the technical problem that battery core is easily damaged.

In order to solve the above-mentioned technical problem, the utility model provides a kind of battery modules comprising:

At least two frames being stacked, being at least arranged side by side on each frame has at least two accommodating cavities, each House a battery core in a accommodating cavity, be additionally provided with elastic buffer structure in accommodating cavity, elastic buffer structure include comprehensive adhesive layer, Elastic cord breaker and gap adhesive layer, the one side of comprehensive adhesive layer are connect with the interior cohesive of accommodating cavity, comprehensive adhesive layer it is another With elastic cord breaker while be fixedly connected；The one side of gap adhesive layer is fixedly connected with the another side of elastic cord breaker, There are gaps between the binding part of gap adhesive layer another side, and are connect with battery core side viscosity by binding part；

At least two screw rods, each screw rod run through at least two frames.

Positive pole ear and negative lug, the outside of frame are additionally provided in battery core as a further improvement of the utility model, At least two copper bars are additionally provided with, each copper bar includes the first connecting portion for connecting positive pole ear and the cathode for connecting adjacent battery core The second connecting portion of lug.

It is additionally provided with hole on each copper bar as a further improvement of the utility model, frame facet is additionally provided with Rubber column gel column is heated, hot melt rubber column gel column is placed in hole.

It further includes head cover and bottom cover as a further improvement of the utility model, and head cover is set to positioned at top layer frame Top, bottom cover is set to positioned at the bottom of bottom frame, and screw rod sequentially passes through head cover, at least two frames and bottom cover.

Head cover is separately provided for the limit hole of standing screw with bottom cover as a further improvement of the utility model, It is both provided with the screw hole to match with screw rod on each frame.

The first reinforcing rib is provided on the top surface of head cover as a further improvement of the utility model, on the bottom surface of bottom cover It is provided with the second reinforcing rib.

Each frame further includes groove and bulge-structure as a further improvement of the utility model, and groove is set to The top of frame, bulge-structure are set to the bottom of frame, and groove matches with the bulge-structure in adjacent frame.

Frame facet is additionally provided with the first sensing for acquiring battery core voltage as a further improvement of the utility model, Device, first sensor are electrically connected with battery core, and first sensor is electrically connected by the first conducting wire and external receiving terminal.

Frame facet is additionally provided with the second sensing for acquiring battery core temperature as a further improvement of the utility model, Device, second sensor are electrically connected by the second conducting wire and external receiving terminal.

Frame facet is additionally provided with wire clamp as a further improvement of the utility model, wire clamp for be clamped the first conducting wire and Second conducting wire.

The utility model in accommodating cavity by being arranged elastic buffer structure so that in use, elasticity is slow for battery core Stress between battery core and accommodating cavity can be eliminated by rushing layer, the probability of battery core damage be reduced, to extend the use of battery core Service life；Further, gap adhesive layer between elastic cord breaker and battery core is set and therefore there is gap between the two, is conducive to electricity The heat that core generates distributes, to improve the heat dissipation performance of battery modules.

Description of the drawings

Fig. 1 is the overall structure decomposition diagram of the utility model battery modules one embodiment；

Fig. 2 is the partial structural diagram of the utility model battery modules one embodiment；

Fig. 3 is the partial structural diagram of second embodiment of the utility model battery modules；

Fig. 4 is the partial structurtes decomposition diagram of the utility model battery modules one embodiment；

Fig. 5 is the partial structurtes decomposition diagram of second embodiment of the utility model battery modules；

Fig. 6 is the overall structure decomposition diagram of second embodiment of the utility model battery modules；

Fig. 7 is the partial structurtes decomposition diagram of the utility model battery modules third embodiment；

Fig. 8 is the overall structure decomposition diagram of the utility model battery modules third embodiment；

Fig. 9 is the partial structural diagram of second embodiment of the utility model battery modules；

Figure 10 is the partial structural diagram of the utility model battery modules third embodiment；

Figure 11 is the partial structural diagram of the 4th embodiment of the utility model battery modules；

Figure 12 is the partial structural diagram of the 5th embodiment of the utility model battery modules.

Specific implementation mode

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.

Fig. 1, Fig. 2 and Fig. 3 illustrate one embodiment of the utility model battery modules, in the present embodiment, referring to figure 1, battery modules include at least two frames 1 being stacked and at least two screw rods 2, each screw rod 2 runs through at least two Frame 1；At least being arranged side by side on each frame 1 has at least two accommodating cavities 11, and an electricity is housed in each accommodating cavity 11 Core 111.

Referring to Fig. 2, elastic buffer structure 112 is additionally provided in accommodating cavity 11.

Referring to Fig. 3, elastic buffer structure 112 includes comprehensive adhesive layer 1121, elastic cord breaker 1122 and gap adhesive layer 1123, the one side of comprehensive adhesive layer 1121 is connect with the interior cohesive of accommodating cavity 11, the another side and bullet of comprehensive adhesive layer 1121 Property buffer layer 1122 is fixedly connected on one side；The another side of the one side of gap adhesive layer 1123 and elastic cord breaker 1122, which is fixed, to be connected It connects, there are gaps between the binding part 11231 of 1123 another side of gap adhesive layer, and pass through binding part 11231 and 111 side of battery core Face viscosity connection.

It should be noted that the one side of adhesive layer 1121 is stickiness material (such as rubber, liquid glue etc.) comprehensively, fix The inside of accommodating cavity 11 is sticked in, the another side of comprehensive adhesive layer 1121 is non-stickiness material, with elastic cord breaker 1122 It is fixedly connected on one side.

Further, elastic cord breaker 1122 is elastic deformation material (such as silica gel, spring etc.).Preferably, elasticity is slow It rushes layer 1122 and may be configured as column structure.

Further, the binding part 11231 of 1123 another side of gap adhesive layer is stickiness material (such as rubber, liquid glue Deng), the side for sticking in battery core 111 is fixed, and binding part 11231 and the contact surface of battery core 111 are discontinuous.

Preferably, elastic buffer structure 112 may be disposed on the corner of battery core 111, then the shape of elastic buffer structure 112 Square is changed by strip；Also elastic buffer structure 112 can be set simultaneously on the side and corner of battery core 111.

Preferably, the quantity of frame 1 may be configured as five layers, and the accommodating cavity 11 on each frame 1 may be configured as five.

The present embodiment passes through, and elastic buffer structure 112 is arranged in the accommodating cavity 11 so that battery core 111 in use, Elastic cord breaker 1122 can eliminate the stress between battery core 111 and accommodating cavity 11, reduce the probability of the damage of battery core 111, from And extend the service life of battery core 111；Further, gap adhesive layer is set between elastic cord breaker 1122 and battery core 111 1123, therefore, there is gap between the two, the heat generated conducive to battery core 111 distributes, to improve dissipating for battery modules Hot property.

For the ease of 111 connection in series-parallel of battery core, on the basis of the above embodiments, referring to Fig. 4, in the present embodiment, battery core Positive pole ear 1111 and negative lug 1112 are additionally provided on 111, the outside of frame 1 is additionally provided at least two copper bars 3, each copper Row 3 includes that the first connecting portion 31 of connection positive pole ear 1111 connects with the second of the negative lug 1112 for connecting adjacent battery core 111 Socket part 32.

Specifically, copper bar 3 includes " H " type copper bar, " E " type copper bar and " C " type copper bar, and " H " type copper bar is used for lateral connection Adjacent battery core 111, " E " type copper bar are used for the battery core 111 of longitudinally connected adjacent interlayer, and " C " type copper bar is respectively arranged at battery core 111 series circuit initial and end.

The present embodiment connects each battery core 111 by the way that copper bar 3 of different shapes is arranged, and passes through first connecting portion 31, the The lug of two interconnecting pieces, 32 regular battery core 111 ensure that 111 lug of battery core completely accesses circuit, at the same be also convenient for user according to Self-demand carries out connection in series-parallel, to meet the needs of user is different, to improve user experience.

In order to while fixed copper bar 3, the stress between copper bar 3 and frame 1 be eliminated, on the basis of above-described embodiment On, referring to Fig. 5, in the present embodiment, hole 33 is additionally provided on each copper bar 3, the side of frame 1 is additionally provided with hot melt rubber column gel column 113, hot melt rubber column gel column 113 is placed in hole 33.

Specifically, hot melt rubber column gel column 113 can carry out slight hot melt and slight squeeze after installation is complete in copper bar 3, so that hot melt The end diameter of rubber column gel column 113 is more than the internal diameter of the hole 33 of copper bar 3.

Copper bar 3 is installed in hot melt rubber column gel column 113 by the present embodiment, due to heating the colloid characteristic of rubber column gel column 113 so that copper bar 3 can generate small displacement without falling off, and therefore, this battery modules can be well adapted in use in fortune Electrical appliance (such as electric vehicle) under dynamic state so that copper bar 3 will not because of jolt or other factors and from battery modules Fall off the problems such as causing power-off.

In order to protect the battery core 111 being located in top layer frame 1 and bottom frame 1, on the basis of the above embodiments, referring to Fig. 6 further includes in the present embodiment head cover 4 and bottom cover 5, and head cover 4 is set to positioned at the top of top layer frame 1, and bottom cover 5 is set It is placed on the bottom of bottom frame 1, screw rod 2 sequentially passes through head cover 4, at least two frames 1 and bottom cover 5.

Bottom cover 5 is arranged by the way that head cover 4 is arranged at the top of top layer frame 1, in the bottom of bottom frame 1 in the present embodiment, from And the battery core 111 in top layer frame 1 and bottom frame 1 is protected, while entire battery modules are also protected, and then ensure The service life of battery modules.

In order to further enhance the structural stability of battery modules, on the basis of the above embodiments, referring to Fig. 7, at this In embodiment, head cover 4 and bottom cover 5 are separately provided for the limit hole 41 of standing screw 2, be both provided on each frame 1 with The screw hole 114 that screw rod 2 matches.

Specifically, limit hole 41 is respectively arranged at the edge of head cover 4 and bottom cover 5, and screw hole 114 is respectively arranged at each frame The edge of frame 1.

Further, it is both provided with the thread groove to match with 2 screw thread of screw rod on limit hole 41 and screw hole 114.

The present embodiment screws limit hole 41 and screw hole 114 to further fix frame 1 by screw rod 2, further stablizes The structures of battery modules.

In order to ensure battery modules head cover 4 and bottom cover 5 intensity, on the basis of the above embodiments, referring to Fig. 8, In the present embodiment, it is provided with the first reinforcing rib 42 on the top surface of head cover 4, the second reinforcing rib 51 is provided on the bottom surface of bottom cover 5.

Preferably, the first reinforcing rib 42 may be configured as reticular structure uniform fold on the top surface of head cover 4；Second reinforcing rib 51 may be alternatively provided as reticular structure uniform fold on the bottom surface of bottom cover 5.

The present embodiment reinforces the structural strength of head cover 4 and bottom cover 5 by being arranged reinforcing rib on head cover 4 and bottom cover 5, from And further enhance the structural strength of entire battery modules.

Mutually sliding is generated between frame 1 in order to prevent, on the basis of the above embodiments, referring to Fig. 9, in the present embodiment In, each frame 1 further includes groove 12 and bulge-structure 13, and groove 12 is set to the top of frame 1, and bulge-structure 13 is arranged In the bottom of frame 1, groove 12 matches with the bulge-structure 13 in adjacent frame 1.

Preferably, groove 12 is set in the top edge of frame 1, and bulge-structure 13 is set to the bottom edge of frame 1 On, and bulge-structure 13 is located at 12 lower section of groove.

Groove 12 and bulge-structure 13 is arranged in the present embodiment on frame 1, is fastened in adjacent frame 1 by bulge-structure 13 Groove 12, prevent from generating sliding between adjacent frame 1.

In order to monitor the voltage status of each battery core 111 in real time, on the basis of the above embodiments, referring to Figure 10, at this In embodiment, 1 side of frame is additionally provided with the first sensor 14 for acquiring 111 voltage of battery core, first sensor 14 and electricity Core 111 is electrically connected, and first sensor 14 is electrically connected by the first conducting wire (not shown) and external receiving terminal.

Preferably, first sensor 14 can monitor the total voltage of multiple battery cores 111 simultaneously, also can each setting of battery core 111 One first sensor 14, to be separately monitored the voltage of each battery core 111.

Preferably, first sensor 14 may be configured as voltmeter.

The present embodiment monitors the voltage of battery core 111 by first sensor 14 in real time, and monitoring result is led by first Line is sent to external receiving terminal, allows users to learn that the voltage status of battery core 111 to pinpoint the problems in time, ensure that in real time The safety of battery modules, further the user experience is improved.

In order to monitor the temperature of each battery core 111 in real time, on the basis of the above embodiments, referring to Figure 11, in this implementation In example, 1 side of frame is additionally provided with the second sensor 15 for acquiring 111 temperature of battery core, and second sensor 15 is led by second Line (not shown) is electrically connected with external receiving terminal.

Preferably, second sensor 15 can detect the mean temperature of multiple battery cores 111 simultaneously, also can each battery core 111 set A second sensor 15 is set, to be separately monitored the temperature of each battery core 111.

Preferably, second sensor 15 may be configured as infrared detector.

The present embodiment monitors the temperature of battery core 111 by second sensor 15 in real time, and monitoring result is led by second Line is sent to external receiving terminal, and the state of temperature for allowing users to learn battery core 111 in real time to pinpoint the problems in time, further The safety of battery modules is ensure that, to which further the user experience is improved.

In order to which first conducting wire of regular above-described embodiment and the second conductor wiring are regular, on the basis of the above embodiments, Referring to Figure 12, in the present embodiment, 1 side of frame is additionally provided with wire clamp 16, and wire clamp 16 is for being clamped the first conducting wire and described second Conducting wire.

The present embodiment in 1 side of frame by being arranged wire clamp 16 so that the first conducting wire and second of acquisition 111 state of battery core Conducting wire along 1 side proper alignment of frame and can be connected to outside, and preventing conducting wire from being contacted with the lug of battery core 111 leads to short circuit etc. Fortuitous event further ensures the safety in utilization of battery modules.

The specific implementation mode of utility model is described in detail above, but it is only used as example, the utility model It is not restricted to specific embodiments described above.For a person skilled in the art, it is any to the utility model into Capable equivalent modifications substitute also all among the scope of the utility model, therefore, in the spirit for not departing from the utility model and Impartial conversion made by under spirit and modification, improvement etc., should all cover in the scope of the utility model.

Claims

1. a kind of battery modules, which is characterized in that it includes:

At least two frames being stacked, being at least arranged side by side on each frame has at least two accommodating cavities, each appearance It sets intracavitary and houses a battery core, elastic buffer structure is additionally provided in the accommodating cavity, the elastic buffer structure includes comprehensively glutinous The one side of paste layer, elastic cord breaker and gap adhesive layer, comprehensive adhesive layer is connect with the interior cohesive of the accommodating cavity, institute State the another side of comprehensive adhesive layer and being fixedly connected on one side for the elastic cord breaker；The one side of the gap adhesive layer with it is described The another side of elastic cord breaker is fixedly connected, and there are gaps between the binding part of the gap adhesive layer another side, and pass through institute Binding part is stated to connect with battery core side viscosity；

At least two screw rods, each screw rod run through at least two frame.

2. battery modules according to claim 1, which is characterized in that be additionally provided with positive pole ear and cathode pole in the battery core Ear is additionally provided at least two copper bars on the outside of the frame, each copper bar includes the first connection of the connection positive pole ear The second connecting portion of the negative lug of portion and the adjacent battery core of connection.

3. battery modules according to claim 2, which is characterized in that be additionally provided with hole, the frame on each copper bar The side of frame is additionally provided with hot melt rubber column gel column, and the hot melt rubber column gel column is placed in described hole.

4. battery modules according to claim 1, which is characterized in that it further includes head cover and bottom cover, the head cover setting In positioned at the top of top layer frame, the bottom cover is set to positioned at the bottom of bottom frame, and the screw rod sequentially passes through the top Lid, at least two frame and the bottom cover.

5. battery modules according to claim 4, which is characterized in that the head cover is separately provided for the bottom cover The limit hole of the fixed screw rod is each both provided with the screw hole to match with the screw rod on the frame.

6. battery modules according to claim 4, which is characterized in that be provided with the first reinforcement on the top surface of the head cover Muscle is provided with the second reinforcing rib on the bottom surface of the bottom cover.

7. battery modules according to claim 1, which is characterized in that each frame further includes groove and bulge-structure, The groove is set to the top of the frame, and the bulge-structure is set to the bottom of the frame, the groove with it is adjacent Bulge-structure on frame matches.

8. battery modules according to claim 1, which is characterized in that the frame facet is additionally provided with for acquiring battery core The first sensor of voltage, the first sensor are electrically connected with the battery core, and the first sensor passes through the first conducting wire It is electrically connected with external receiving terminal.

9. battery modules according to claim 8, which is characterized in that the frame facet is additionally provided with for acquiring battery core temperature The second sensor of degree, the second sensor are electrically connected by the second conducting wire and the external receiving terminal.

10. battery modules according to claim 9, which is characterized in that the frame facet is additionally provided with wire clamp, the wire clamp For first conducting wire and second conducting wire to be clamped.