CN111900299A - Aluminum-shell battery module frame and welding tool thereof - Google Patents
Aluminum-shell battery module frame and welding tool thereof Download PDFInfo
- Publication number
- CN111900299A CN111900299A CN202010807574.5A CN202010807574A CN111900299A CN 111900299 A CN111900299 A CN 111900299A CN 202010807574 A CN202010807574 A CN 202010807574A CN 111900299 A CN111900299 A CN 111900299A
- Authority
- CN
- China
- Prior art keywords
- plate
- battery module
- pressing plate
- tool box
- aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003466 welding Methods 0.000 title claims abstract description 43
- 238000003825 pressing Methods 0.000 claims abstract description 101
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 10
- 238000007599 discharging Methods 0.000 abstract description 7
- 230000008602 contraction Effects 0.000 abstract description 6
- 238000003487 electrochemical reaction Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000000741 silica gel Substances 0.000 description 5
- 229910002027 silica gel Inorganic materials 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005518 electrochemistry Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/30—Preventing polarity reversal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses an aluminum-shell battery module frame and a welding tool thereof, which comprise a tool box with an opening at the upper end, wherein an end plate pre-tightening device and a side plate pre-tightening device are arranged in the tool box, the end plate pre-tightening device comprises a first pressing plate arranged in the tool box and a first driving structure used for driving the first pressing plate to move back and forth in the tool box, a pressure sensor used for detecting the pre-tightening force between an end plate and a battery module is arranged on the first pressing plate, the side plate pre-tightening device comprises a second pressing plate arranged in the tool box and a second driving structure used for driving the second pressing plate to move back and forth in the tool box, and the movement paths of the first pressing plate and the second pressing plate are vertical to each other. The invention provides an aluminum shell battery module frame and a welding tool thereof, aiming at the technical problems that the stability of a battery module is influenced by electrochemical reaction, thermal expansion and cold contraction in the charging and discharging processes of the battery module in the prior art, and the like.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to an aluminum shell battery module frame and a welding tool thereof.
Background
The battery module is used as a power core component of systems such as a power battery system, an energy storage system, a communication system, a civil system and the like, the importance of the electrical property and the safety of the battery module is self-evident, the battery module is a core module of the power battery system, the energy storage system, the communication system and the civil system, and the grouping mode and the electrical property of the battery cells directly influence the performance of the power battery system, the energy storage system, the communication system and the civil system.
For battery system, the battery module of lithium electricity has advantages such as the performance is good, small, light in weight, and aluminium shell electricity core security is good very much, the energy is big, compatible strong, to the battery module that aluminium shell electricity core combination formed, the group mode of battery module is especially important, and the pretightning force seriously influences the performance of each system after the welding. However, in the existing grouping process, the battery cell is usually only attached and glued, and a module formed by fixedly welding end side plates, namely a tightly assembled battery module, does not consider the physical characteristics of electrochemical expansion and thermal expansion and contraction of the battery cell in the charging and discharging process of the battery cell, does not consider the serious influence of different pretightening forces on the electrical performance of the battery module, and does not consider the safety of the battery cell in the charging and discharging expansion. The battery module is too tight in groups, and the unable thermal expansion power that releases of battery easily leads to the stiff end curb plate to warp and quick-witted case deformation, influences battery module stability, easily leads to battery module accident of catching fire even. The battery module is too loose, and although the battery module releases the thermal expansion power, easily lead to battery itself to warp unable the recovering, in addition fixed loose easily, the incident appears in the ease.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention provides an aluminum shell battery module frame and a welding tool thereof, aiming at the technical problems that the stability of a battery module is influenced by the electrochemical expansion and the expansion and contraction of heat during the charging and discharging processes of the battery module in the prior art, and the frame can adapt to the electrochemical expansion and the expansion and contraction of heat during the charging and discharging processes of the battery module, and can improve the performance and the safety of the battery module.
2. Technical scheme
In order to solve the problems, the technical scheme provided by the invention is as follows:
the utility model provides an aluminum-shell battery module frame, includes first curb plate, second curb plate, first end plate and second end plate, first curb plate, first end plate, second curb plate and second end plate connect gradually and constitute the rectangle framework, first curb plate and second curb plate symmetry set up, first end plate and second end plate symmetry set up, all be equipped with the pretension structure that is used for applying invariable pretightning force to the battery module on the contact surface of first end plate and second end plate and battery module.
Optionally, the pre-tightening structure comprises a pre-tightening plate arranged in parallel with the end plate and at least one elastic piece arranged between the end plate and the pre-tightening plate, and the elastic piece is used for driving the pre-tightening plate to move towards the battery module.
The utility model provides an aluminum hull battery module frame welding frock, includes upper end open-ended frock case, be equipped with end plate preloading device and curb plate preloading device in the frock case, end plate preloading device is including locating the first clamp plate of frock incasement and being used for driving the first drive structure of first clamp plate action of making a round trip in the frock case, be equipped with the pressure sensor who detects pretightning force between end plate and the battery module on the first clamp plate, curb plate preloading device is including locating the second clamp plate of frock incasement and being used for driving the second drive structure of second clamp plate action of making a round trip in the frock case, the motion route of first clamp plate and second clamp plate is mutually perpendicular.
Optionally, the first driving structure comprises a driving screw with one end abutting against the back face of the first pressing plate and a threaded sleeve arranged on the tool box, the driving screw is in threaded fit with the threaded sleeve, a rotating handle is arranged at the other end of the driving screw, the driving screw and the threaded sleeve are both arranged along the movement path of the first pressing plate, and the pressure sensor is arranged at the joint of the driving screw and the first pressing plate.
Optionally, the first pressing plate is provided with at least one first guide post, the first guide post is arranged along a movement path of the first pressing plate, and the tool box is provided with a first guide hole matched with the first guide post.
Optionally, the two sides of the second pressing plate are detachably connected with a first side pressing plate and a second side pressing plate respectively, the first side pressing plate and the second side pressing plate can be abutted to end plates on the two sides of the frame of the aluminum-shell battery module respectively, the first side pressing plate and the second side pressing plate are arranged on the other side of the end plate, and the first side pressing plate and the second side pressing plate on the side can be detachably installed on the tool box.
Optionally, an insulating bottom plate is arranged at the bottom of the tool box.
Optionally, the battery module further comprises an insulating protective cover for covering the battery module.
Optionally, the frock case includes first plate body and the second plate body of subtend setting, the second drive structure is located on the first plate body, the lower extreme of second plate body articulates on the frock case, just the upper end and the frock case of second plate body pass through the connecting piece and can dismantle the connection.
Optionally, the second driving structure is an air cylinder arranged on the first plate body, an output shaft of the air cylinder is fixedly connected with the back face of the second pressing plate, the back face of the second pressing plate is provided with at least one second guide post, the second guide post is arranged along a movement path of the second pressing plate, and the first plate body is provided with a second guide hole matched with the second guide post.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) after the battery module is assembled and molded with the battery module, the pre-tightening structure applies constant pre-tightening force to the battery module to ensure that the acting force of the frame and the battery module bracket is constant, and the pre-tightening structure can be automatically adjusted to adapt to the volume change of the battery module in the processes of electrochemical expansion and contraction of the battery cell in the charging and discharging processes of the battery module, so that the performance and the safety of the battery module are improved.
(2) Under the condition that the electric performance and safety of the battery are easier to exert under the pre-tightening working condition, if the battery module is fully released due to expansion caused by heat and contraction caused by cold during charging and discharging of the battery module, the electric performance is not influenced by bulging and no pre-tightening.
(3) According to the invention, the constant pretightening force is added to the battery module through the pretightening structure, so that the electrical property of the battery module can be fully exerted.
(4) The pressure sensor can detect the pretightening force between the end plate and the battery module in real time in the process of adjusting the positions of the end plate and the battery module, so that the pretightening force between the end plate and the battery module is ensured to be a specified pressure value during welding, and the phenomenon that the battery module is too tight or too loose between a frame after installation is avoided.
(5) According to the invention, the left pressing plate and the right pressing plate are adopted in the welding tool, the welding process characteristics (the tighter the welding workpiece is, the firmer the welding is) are considered, the left pressing plate and the right pressing plate are positioned and pressed again at the welding position, the insufficient welding is prevented, the safety performance of the battery module is ensured, and the left pressing plate and the right pressing plate are brass pieces.
(6) The invention adopts the insulating bottom plate and the insulating protective cover, fully considers the accident situation of short circuit of the battery, and is beneficial to improving the safety performance of the tool in use.
Drawings
Fig. 1 is an exploded view of a frame of an aluminum-case battery module according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a pre-tightening structure of a frame of an aluminum-shell battery module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a frame welding tool for an aluminum-shell battery module according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a side plate pre-tightening device of a frame welding tool for an aluminum-shell battery module according to an embodiment of the present invention;
1. a first side plate; 2. a second side plate; 3. a first end plate; 4. a second end plate; 5. a pre-tightening structure; 51. pre-tightening the plate; 511. a guide post; 512. a screw counter bore; 52. an elastic member; 6. a guide hole; 10. boxing; 101. a first plate body; 1011. a second guide hole; 102. a second plate body; 103. a first guide hole; 11. an end plate pre-tightening device; 111. a first platen; 112. a first drive structure; 1121. a drive screw; 1122. a threaded sleeve; 1123. rotating the handle; 12. a side plate pre-tightening device; 121. a second platen; 122. a second drive structure; 13. a pressure sensor; 14. a first guide post; 15. a first side press plate; 16. a second side press plate; 17. an insulating base plate; 18. an insulating protective cover; 19. a connecting member; 20. a second guide post.
Detailed Description
For a further understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings 1-2.
Example 1
With reference to fig. 1, the aluminum-case battery module frame of the present embodiment includes a first side plate 1, a second side plate 2, a first end plate 3, and a second end plate 4, where the first side plate 1, the first end plate 3, the second side plate 2, and the second end plate 4 are sequentially connected to form a rectangular frame, a connection angle between the side plates and the end plates is 90 °, the first side plate 1, the first end plate 3, the second side plate 2, and the second end plate 4 are fixedly connected by welding, the first side plate 1 and the second side plate 2 are symmetrically arranged, the first end plate 3 and the second end plate 4 are symmetrically arranged, and pre-tightening structures 5 for applying a constant pre-tightening force to the battery module are respectively arranged on contact surfaces of the first end plate 3 and the second end plate 4 with the battery module; after assembling and forming with the battery module, the pretension structure exerts invariable pretension force in order to guarantee that the effort of frame and battery module support is invariable to the battery module, and at the electric core electrochemistry inflation of battery module charge-discharge in-process and the in-process of expending with heat and contract with cold, the pretension structure can adjust by oneself in order to adapt to the volume change of battery module to improve battery module performance and security.
In this embodiment, pretension structure 5 is heat conduction elastic silica gel piece or MPP heat conduction elastic piece, heat conduction elastic silica gel piece or MPP heat conduction elastic piece install on first end plate 3 and second end plate 4 after through beating the gluey processing realization fixed, heat conduction elastic silica gel piece and MPP heat conduction elastic piece all have good heat conductivility and elastic property, when adapting to battery module volume change, heat conduction elastic silica gel piece and MPP heat conduction elastic piece can be timely transmits the heat to battery module, so that battery module's temperature keeps at best operating temperature as far as possible, rely on the elasticity control of heat conduction elastic silica gel piece or MPP heat conduction elastic piece to respond to battery module service property, guarantee battery security performance and electrical property, full play battery module core effect.
Example 2
With reference to fig. 1 and 2, in the frame of the aluminum-shell battery module of the present embodiment, compared with embodiment 1, the pre-tightening structure 5 of the present embodiment includes a pre-tightening plate 51 parallel to the end plate and at least one elastic element 52 disposed between the end plate and the pre-tightening plate 51, where the elastic element 52 is used to drive the pre-tightening plate 51 to move toward the battery module, and the thickness of the pre-tightening plate 51 is smaller than that of the end plate, generally smaller than about 1 MM; when the battery module expands with heat and contracts with cold during working, the pre-tightening plate 51 is pushed to move towards the end plate by overcoming the elastic acting force of the elastic piece 52; when the battery module contracts, the elastic acting force of the elastic piece 52 pushes the pre-tightening plate 51 to move towards the battery module, the pre-tightening force between the battery module and the pre-tightening plate 51 is constant, the cycle performance and the cycle life of the battery module are further facilitated, and the safety of the module due to the fact that the pressure of the module cannot be released due to thermal expansion is guaranteed; the pre-tightening plate 51 and the battery module are in surface contact with each other, so that the battery module is uniformly stressed.
As an alternative to this embodiment, at least one guiding column 511 is connected to the back of the pretensioning plate 51, the guiding column 511 is disposed along the moving path of the pretensioning plate 51, and the first end plate 3 and the second end plate 4 are provided with a guiding hole 6 for the guiding column 511 to cooperate; when the pretension plate 51 moves horizontally relative to the end plate, the guide column 511 can be drawn in the guide hole 6 to ensure that the pretension plate 51 and the end plate are kept in a horizontal state at any time, so that the pretension plate 51 is prevented from moving eccentrically and being stressed eccentrically, and the pretension plate 51 is ensured to only move axially.
In this embodiment, the elastic element 52 is a spring, the spring is sleeved on the guide post 511, one end of the spring abuts against the pre-tightening plate 51, and the other end of the spring abuts against the end plate; the spring is sleeved on the guide column 511, so that the spring cannot be twisted under the limiting action of the guide column 511 when the length of the spring is changed under the force of the pre-tightening plate 51, and the elastic acting force generated on the pre-tightening plate 51 after the spring is compressed is ensured to be always vertical to the end face of the pre-tightening plate 51.
In this embodiment, in order to facilitate the installation and fixation between the guiding column 511 and the pre-tightening plate 51, the guiding column 511 and the pre-tightening plate 51 are detachably connected.
In this embodiment, the guide column 511 and the pre-tightening plate 51 are detachably connected by a screw, and the pre-tightening plate 51 is provided with a screw counter bore 512 for a screw to be embedded; compared with other connection structures, the screw connection is stable, the cost is low, the screw counter bore 512 can be used for mounting the screw in a concealed mode, and the situation that the screw protrudes out of the surface of the pre-tightening plate 51 to influence the contact between the pre-tightening plate 51 and the battery module is avoided.
In this embodiment, four guide posts 511 are distributed on the back surface of the pre-tightening plate 51, and the four guide posts 511 are respectively arranged at the corners of the back surface of the pre-tightening plate 51; by adopting the distribution design of the guide columns 511, the guide of the pre-tightening plate 51 during movement is more stable, and the constancy of the pre-tightening force is further ensured.
Example 3
With reference to fig. 1-4, the aluminum-shell battery module frame welding tool of this embodiment is used for positioning an aluminum-shell battery module frame before welding in embodiment 1 or embodiment 2, and includes a tool box 10 with an opening at an upper end, a cavity for placing the aluminum-shell battery module frame and a battery module is provided in the tool box 10, an end plate pre-tightening device 11 and a side plate pre-tightening device 12 are provided in the tool box 10, the end plate pre-tightening device 11 includes a first pressing plate 111 provided in the tool box 10 and a first driving structure 112 for driving the first pressing plate 111 to move back and forth in the tool box 10 along a length direction of the tool box 10, a pressure sensor 13 for detecting a pre-tightening force between the end plate and the battery module is provided on the first pressing plate 111, the side plate pre-tightening device 12 includes a second pressing plate 121 provided in the tool box 10 and a second driving structure 122 for driving the second pressing plate 121 to move back and forth in the tool box 10 along a width direction, the moving paths of the first pressing plate 111 and the second pressing plate 121 are vertical; when the welding tool is used, two side plates are respectively placed on the second pressing plate 121 and the inner wall of the tool box 10 opposite to the second pressing plate 121, two end plates are respectively placed on the first pressing plate 111 and the inner wall of the tool box 10 opposite to the first pressing plate 111, then a plurality of battery module single sheets are sequentially stacked in the tool box 10 along the length direction of the tool box 10, the components are placed at designated positions, the first driving structure 112 is started to drive the first pressing plate 111 to push the end plates to move towards the battery module until the end plates at two sides are tightly pressed on the end surfaces at two sides of the battery module, an operator can adjust the first driving structure 112 according to a pressure value displayed by the pressure sensor 13 so that a pre-tightening force between the end plates and the battery module is a specified pressure value, and then the second driving structure 122 is started to drive the second pressing plate 121 to push the side plates to move towards the battery module until the side plates at two sides are tightly pressed on another end surface of the battery module On the outer both sides terminal surface, then can accomplish being connected of whole frame and battery module through the junction between laser welding curb plate and the end plate, have rated pretightning force in order to adapt to the electric core electrochemistry inflation and the expend with heat and contract with cold of battery module between sheet frame and the battery module.
As an alternative to this embodiment, the first driving structure 112 includes a driving screw 1121, one end of which abuts against the back surface of the first pressing plate 111, and a threaded sleeve 1122 integrally formed on the tool box 10, the driving screw 1121 and the threaded sleeve 1122 are in threaded fit, a rotating handle 1123 is disposed at the other end of the driving screw 1121, the driving screw 1121 and the threaded sleeve 1122 are both disposed along the movement path of the first pressing plate 111, and the pressure sensor 13 is disposed at the connection position of the driving screw 1121 and the first pressing plate 111; an operator can control the rotation of the driving screw 1121 by rotating the handle 1123, because the driving screw 1121 is in threaded fit with the threaded sleeve 1122, and the threaded sleeve 1122 is in a fixed state, the driving screw 1121 can advance or retreat along the arrangement direction thereof when rotating, so as to drive the first pressing plate 111 fixedly connected to the end portion of the driving screw 1121 to move back and forth, and because the pressure sensor 13 is arranged at the connection position of the driving screw 1121 and the first pressing plate 111, the thrust of the driving screw 1121 on the first pressing plate 111 can be visually and clearly displayed to the operator through the pressure sensor 13 for reference, when the end plate abuts against the end surface of the battery module, the pre-tightening force between the end plate and the battery module is consistent with the thrust between the driving screw 1121 and the first pressing plate 111, at this time, the pressure value displayed by the pressure sensor 13 is the pre-tightening force value between the end plate and the battery module, so that, constant pre-tightening force is added to the battery module, and the electrical performance of the module is fully exerted; the cooperation of the driving screw 1121 and the threaded sleeve 1122 facilitates the operator to control the forward and backward movement of the first pressing plate 111, and the operator can easily and conveniently apply the torque force.
As an alternative of this embodiment, four first guide posts 14 are disposed on the first pressing plate 111, the four first guide posts 14 are disposed on the back surface of the first pressing plate 111, the first guide posts 14 are disposed along the moving path of the first pressing plate 111, and the tool box 10 is disposed with first guide holes 103 matched with the first guide posts 14; first guide post 14 and first guiding hole 103 cooperate and to play very good location effect to the direction of motion of first clamp plate 111, and the axiality is controlled easily, makes the parallel extrusion end plate of first clamp plate 111 and battery module, and the laminating degree of end plate and battery module is higher, fully transmits the pretightning force to the battery module.
As an alternative of this embodiment, two sides of the second pressing plate 121 are detachably connected with a first side pressing plate 15 and a second side pressing plate 16, the first side pressing plate 15 and the second side pressing plate 16 can be respectively abutted against two side end plates of a frame of the aluminum-shell battery module, the other side of the end plate is also provided with the first side pressing plate 15 and the second side pressing plate 16, the first side pressing plate 15 and the second side pressing plate 16 on the side can be detachably mounted on the tool box 10, the first side pressing plate 15 and the second side pressing plate 16, the second pressing plate 121 and the tool box 10 are detachably connected by means of screws, the first side pressing plate 15 and the second side pressing plate 16 are used for pressing a gap between the side plate and the end plate, the gap between the side plate and the end plate is adjusted, the welding quality is ensured, and considering the welding process characteristics (the welding work piece is more tightly attached and the welding is firmer, the cold solder joint is prevented, and the safety performance of the battery module is ensured; and because first side clamp plate 15 and second side clamp plate 16 are in the welding seam position, what be difficult to avoid when the welding has the welding slag to fall on first side clamp plate 15 and second side clamp plate 16, cause the surface unevenness of first side clamp plate 15 and second side clamp plate 16 easily for a long time, thereby influence and the laminating degree between the curb plate, and then influence the laminating degree between curb plate and the end plate, first side clamp plate 15 and second side clamp plate 16 are for dismantling the connection in this embodiment, can change it after first side clamp plate 15 and second side clamp plate 16 reach life, only need to change and can realize better frock effect again behind first side clamp plate 15 and the second side clamp plate 16, maintenance cost greatly reduced.
In the present embodiment, the first side pressing plate 15 and the second side pressing plate 16 are both made of brass.
As an alternative of this embodiment, insulating bottom plate 17 has been laid to the frock case 10 bottom, and insulating bottom plate 17 chooses for use wear-resisting plastics to make, and insulating bottom plate 17 is insulating wear-resisting easily to be changed, and effectual insulating nature is good, and is stand wear and tear, changes easy maintenance, need not to change the bottom plate body of whole frock case 10.
As an alternative of this embodiment, the protection device further includes an insulating protection cover 18 covering the battery module, the insulating protection cover 18 is made of light plastic, before laser welding starts, the insulating protection cover 18 is manually placed on the battery module for protection, and the laser welding is waited to be completed; the insulating protective cover 18 can prevent the appearance quality of the battery module from being damaged due to splashing of welding slag, ensure the appearance quality and consistency of the battery module, and can play a secondary fixing effect on the battery module during welding; the portable plastic is convenient for operators to take.
As an alternative to this embodiment, the tooling box 10 includes a first plate 101 and a second plate 102 disposed opposite to each other, the second driving structure 122 is disposed on the first plate 101, a lower end of the second plate 102 is hinged to the tooling box 10, and an upper end of the second plate 102 is detachably connected to the tooling box 10 through a connecting member 19; after the welding is completed, the operator can release the locking of the connecting member 19, namely, the upper end of the second plate 102 is separated from the tool box 10, and at this time, the second plate 102 can be opened outwards around the hinge shaft at the lower end of the second plate, so that the operator can conveniently take the welded battery module, and the operator does not need to tilt and pour the formed battery module out of the opening of the tool box 10.
In this embodiment, the connecting member 19 is a quick clamp, which has the advantages of convenient operation, high efficiency and large pressing force. The coupling strength between the second plate 102 and the tool box 10 can be ensured.
As an alternative of this embodiment, the second driving structure 122 is an air cylinder disposed on the first plate 101, an output shaft of the air cylinder is fixedly connected to a back surface of the second pressing plate 121, four second guide posts 20 are distributed on the back surface of the second pressing plate 121, the second guide posts 20 are disposed along a movement path of the second pressing plate 121, and a second guide hole 1011 matched with the second guide post 20 is disposed on the first plate 101; the second guide post 20 and the second guide hole 1011 are matched to play a good positioning effect on the moving direction of the second pressing plate 121, the coaxiality is easy to control, and the extruding side plate parallel to the second pressing plate 121 and the battery module are enabled to be higher in the attaching degree of the side plate and the battery module.
In this embodiment, the cylinder is an ultra-thin cylinder that is commercially available.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (10)
1. The utility model provides an aluminum hull battery module frame which characterized in that: including first curb plate, second curb plate, first end plate and second end plate, first curb plate, first end plate, second curb plate and second end plate connect gradually and constitute the rectangle framework, first curb plate and second curb plate symmetry set up, first end plate and second end plate symmetry set up, all be equipped with the pretension structure that is used for applying invariable pretightning force to the battery module on the contact surface of first end plate and second end plate and battery module.
2. The aluminum-shell battery module frame of claim 1, wherein: the pre-tightening structure comprises a pre-tightening plate arranged in parallel with the end plate and at least one elastic piece arranged between the end plate and the pre-tightening plate, and the elastic piece is used for driving the pre-tightening plate to move towards the battery module.
3. The utility model provides an aluminum hull battery module frame welding frock which characterized in that: the tool box comprises a tool box with an opening at the upper end, an end plate pre-tightening device and a side plate pre-tightening device are arranged in the tool box, the end plate pre-tightening device comprises a first pressing plate arranged in the tool box and a first driving structure used for driving the first pressing plate to move back and forth in the tool box, a pressure sensor used for detecting pre-tightening force between an end plate and a battery module is arranged on the first pressing plate, the side plate pre-tightening device comprises a second pressing plate arranged in the tool box and a second driving structure used for driving the second pressing plate to move back and forth in the tool box, and the movement paths of the first pressing plate and the second pressing plate are perpendicular to each other.
4. The aluminum-shell battery module frame welding tool of claim 3, characterized in that: the first driving structure comprises a driving screw and a threaded sleeve, wherein one end of the threaded sleeve is abutted to the back face of the first pressing plate, the threaded sleeve is arranged on the tool box, the driving screw is in threaded fit with the threaded sleeve, a rotating handle is arranged at the other end of the driving screw, the driving screw and the threaded sleeve are both arranged along the movement path of the first pressing plate, and the pressure sensor is arranged at the joint of the driving screw and the first pressing plate.
5. The aluminum-shell battery module frame welding tool of claim 4, characterized in that: the tool box is characterized in that at least one first guide post is arranged on the first pressing plate, the first guide post is arranged along the movement path of the first pressing plate, and a first guide hole matched with the first guide post is formed in the tool box.
6. The aluminum-shell battery module frame welding tool of claim 3, characterized in that: the two sides of the second pressing plate are detachably connected with a first side pressing plate and a second side pressing plate respectively, the first side pressing plate and the second side pressing plate can be abutted to end plates on the two sides of a frame of the aluminum shell battery module respectively, the first side pressing plate and the second side pressing plate are arranged on the other side of each end plate, and the first side pressing plate and the second side pressing plate on the side can be detachably installed on the tool box.
7. The aluminum-shell battery module frame welding tool of claim 3, characterized in that: and an insulating bottom plate is arranged at the bottom of the tool box.
8. The aluminum-shell battery module frame welding tool of claim 3, characterized in that: still including being used for covering the insulating protection casing of locating on the battery module.
9. The aluminum-shell battery module frame welding tool of claim 3, characterized in that: the frock case includes first plate body and the second plate body that the subtend set up, second drive structure locates on the first plate body, the lower extreme of second plate body articulates on the frock case, just the upper end and the frock case of second plate body pass through the connecting piece and can dismantle the connection.
10. The aluminum-shell battery module frame welding tool of claim 9, characterized in that: the second driving structure is a cylinder arranged on the first plate body, an output shaft of the cylinder is fixedly connected with the back face of the second pressing plate, at least one second guide post is arranged on the back face of the second pressing plate, the second guide post is arranged along the movement path of the second pressing plate, and a second guide hole matched with the second guide post is formed in the first plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010807574.5A CN111900299B (en) | 2020-08-12 | 2020-08-12 | Aluminum shell battery module frame and welding tool thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010807574.5A CN111900299B (en) | 2020-08-12 | 2020-08-12 | Aluminum shell battery module frame and welding tool thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111900299A true CN111900299A (en) | 2020-11-06 |
| CN111900299B CN111900299B (en) | 2023-12-12 |
Family
ID=73230009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010807574.5A Active CN111900299B (en) | 2020-08-12 | 2020-08-12 | Aluminum shell battery module frame and welding tool thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111900299B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113130964A (en) * | 2021-03-05 | 2021-07-16 | 浙江南都电源动力股份有限公司 | Butterfly welding equipment |
| CN113118685A (en) * | 2021-03-05 | 2021-07-16 | 浙江南都电源动力股份有限公司 | Novel butterfly welding device |
| CN113829276A (en) * | 2021-10-09 | 2021-12-24 | 上海空间电源研究所 | Lithium ion battery group is with tight assembly quality |
| JP2023074269A (en) * | 2021-11-17 | 2023-05-29 | プライムプラネットエナジー＆ソリューションズ株式会社 | battery module |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204255553U (en) * | 2014-12-08 | 2015-04-08 | 宁德新能源科技有限公司 | The cell expansion force test device of battery modules |
| CN208067586U (en) * | 2018-03-27 | 2018-11-09 | 浙江衡远新能源科技有限公司 | A kind of clamping device for battery modules laser welding |
| WO2019003772A1 (en) * | 2017-06-26 | 2019-01-03 | パナソニックＩｐマネジメント株式会社 | Power storage device |
| CN208970678U (en) * | 2018-08-28 | 2019-06-11 | 东莞仕能机械设备有限公司 | A kind of battery modules frock clamp |
| CN110323374A (en) * | 2018-03-30 | 2019-10-11 | 郑州深澜动力科技有限公司 | Frame, battery modules and the power module of battery modules |
| CN110640319A (en) * | 2019-08-21 | 2020-01-03 | 合肥国轩高科动力能源有限公司 | Laser welding device for side end plate of square lithium battery module |
| CN209919182U (en) * | 2018-12-28 | 2020-01-10 | 浙江新创能源有限公司 | Battery module laser welding mechanism |
| CN212848671U (en) * | 2020-08-12 | 2021-03-30 | 浙江南都电源动力股份有限公司 | Aluminum-shell battery module frame welding tool |
| CN213184453U (en) * | 2020-08-12 | 2021-05-11 | 浙江南都电源动力股份有限公司 | Aluminum-shell battery module frame |
-
2020
- 2020-08-12 CN CN202010807574.5A patent/CN111900299B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204255553U (en) * | 2014-12-08 | 2015-04-08 | 宁德新能源科技有限公司 | The cell expansion force test device of battery modules |
| WO2019003772A1 (en) * | 2017-06-26 | 2019-01-03 | パナソニックＩｐマネジメント株式会社 | Power storage device |
| CN208067586U (en) * | 2018-03-27 | 2018-11-09 | 浙江衡远新能源科技有限公司 | A kind of clamping device for battery modules laser welding |
| CN110323374A (en) * | 2018-03-30 | 2019-10-11 | 郑州深澜动力科技有限公司 | Frame, battery modules and the power module of battery modules |
| CN208970678U (en) * | 2018-08-28 | 2019-06-11 | 东莞仕能机械设备有限公司 | A kind of battery modules frock clamp |
| CN209919182U (en) * | 2018-12-28 | 2020-01-10 | 浙江新创能源有限公司 | Battery module laser welding mechanism |
| CN110640319A (en) * | 2019-08-21 | 2020-01-03 | 合肥国轩高科动力能源有限公司 | Laser welding device for side end plate of square lithium battery module |
| CN212848671U (en) * | 2020-08-12 | 2021-03-30 | 浙江南都电源动力股份有限公司 | Aluminum-shell battery module frame welding tool |
| CN213184453U (en) * | 2020-08-12 | 2021-05-11 | 浙江南都电源动力股份有限公司 | Aluminum-shell battery module frame |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113130964A (en) * | 2021-03-05 | 2021-07-16 | 浙江南都电源动力股份有限公司 | Butterfly welding equipment |
| CN113118685A (en) * | 2021-03-05 | 2021-07-16 | 浙江南都电源动力股份有限公司 | Novel butterfly welding device |
| CN113829276A (en) * | 2021-10-09 | 2021-12-24 | 上海空间电源研究所 | Lithium ion battery group is with tight assembly quality |
| JP2023074269A (en) * | 2021-11-17 | 2023-05-29 | プライムプラネットエナジー＆ソリューションズ株式会社 | battery module |
| JP7488243B2 (en) | 2021-11-17 | 2024-05-21 | プライムプラネットエナジー＆ソリューションズ株式会社 | Battery Module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111900299B (en) | 2023-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111900299A (en) | Aluminum-shell battery module frame and welding tool thereof | |
| CN212848671U (en) | Aluminum-shell battery module frame welding tool | |
| CN111341954B (en) | Soft package battery module and assembly method thereof | |
| CN205609622U (en) | Battery module | |
| CN113437424A (en) | Monomer formula lithium cell group of new energy automobile | |
| CN107579178A (en) | A kind of detachable accumulator cell heat preserving device | |
| CN217475260U (en) | Battery module disassembling tool | |
| CN213184453U (en) | Aluminum-shell battery module frame | |
| CN202282409U (en) | Novel modular structure of power lithium battery unit | |
| CN204407399U (en) | Soft package lithium battery cathode tab jockey | |
| CN203596379U (en) | Power battery pack for electric bicycle | |
| CN210778824U (en) | Fuel cell case convenient to dismantle | |
| CN211088426U (en) | Lithium battery with cylindrical flexible package | |
| CN210325866U (en) | Small power battery with good heat dissipation performance | |
| CN113067073A (en) | Battery module frame, battery module and battery package | |
| CN113067071A (en) | Battery module frame, battery module and battery package | |
| CN217134504U (en) | Lithium battery cover plate with good stability | |
| CN221552322U (en) | Connecting piece for battery test | |
| CN221353015U (en) | Battery pack structure | |
| CN219873914U (en) | Explosion-proof protection architecture of lithium cell | |
| CN214589137U (en) | Lithium battery power supply device | |
| CN216954992U (en) | Battery safety data detection auxiliary device for battery energy storage power station | |
| CN220515779U (en) | Clamp for battery laser welding cap | |
| CN109950431A (en) | A kind of band overcharges the battery battery core with the battery cover board of short-circuit protection and its application | |
| CN215418382U (en) | Pressure relief type battery end plate and energy storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |