CN211743202U - Square electricity core module - Google Patents
Square electricity core module Download PDFInfo
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- CN211743202U CN211743202U CN201921781673.XU CN201921781673U CN211743202U CN 211743202 U CN211743202 U CN 211743202U CN 201921781673 U CN201921781673 U CN 201921781673U CN 211743202 U CN211743202 U CN 211743202U
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- 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
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Abstract
The utility model relates to a power battery technical field provides a square electric core module, including module frame and a plurality of electric cores arranged in the module frame, the module frame is a frame-type structure of full fretwork, is equipped with electric core fixing device and electric core monitoring heating device in the module frame; the battery cell fixing device comprises a battery cell supporting seat and a battery cell connecting seat, a plurality of supporting seat clapboards are arranged on the battery cell supporting seat, a plurality of connecting seat clapboards are correspondingly arranged on the battery cell connecting seat, and a battery cell pressing and fixing piece is pressed on the battery cell connecting seat; electric core control heating device includes electric core bottom heating film and the electric core side heating film and the signal acquisition terminal that the symmetry set up, and the electrode of each electric core corresponds the electric connection through electric connecting plate, and on the signal acquisition terminal was fixed in electric connecting plate, the higher authority of electric connecting plate and electric core connecting seat was covered jointly and is equipped with the module end cover. The square battery cell module is simple in structure, good in heating and heat dissipation performance, low in manufacturing cost and high in energy density.
Description
Technical Field
The utility model belongs to the technical field of power battery, especially, relate to a square electricity core module.
Background
Under the background of energy crisis, the use of environment-friendly energy is a necessary choice for people to produce and live. The lithium battery has the characteristics of high safety, good cyclicity, no pollution, relatively low cost of raw materials and the like, and is widely used in electric automobiles. The lithium battery is widely applied to the current power battery system, and is widely applied to passenger vehicles, commercial vehicles, logistics vehicles and the like. With the continuous improvement of the demand of present market to the lithium cell and under the condition that lithium cell technique is constantly developed, the lithium cell is modularization in groups, and the size is little, and energy density is high, and the use scheduling problem under the low temperature state awaits urgent need to be solved.
The structure size of the conventional battery pack module is small, the number of single module battery cores is small, and some aluminum die castings or PTC heating plates are used as structural strength supports of the battery pack; because the number of the single module battery cores is small, the weight of the module supporting structure distributed to the single battery core is relatively large, and therefore the energy density is relatively small;
present current battery module is in the heat dissipation, because the packing that uses the gasket material to go on between electric core and the electric core, lead to electric core and electric core support not have with battery package box body circulation of air's clearance, perhaps have the big cooling surface of direction about hardly realizing electric core to realize the heat dissipation, can lead to partial electric core heat dissipation bad, and then lead to electric core temperature inhomogeneous, further because the unbalanced meeting of module electric core temperature leads to whole battery module pressure differential too big, thereby reduce the life-span of whole battery module.
Aiming at the low-temperature use problem of the battery at present, the current solution has low efficiency, uneven heating, easy ignition and burning loss, large energy consumption and high cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, have good heating and heat dispersion, low in manufacturing cost, square electric core module that energy density is high.
The utility model discloses a realize like this, a square electricity core module, including module frame and arrange a plurality of electric cores of installing in the module frame, the module frame is the frame-type structure of full fretwork, install two at least electric cores in the module frame, be equipped with electric core fixing device and electric core control heating device in the module frame;
the battery cell fixing device comprises a battery cell supporting seat correspondingly arranged at the bottom of the battery cell and a battery cell connecting seat arranged at the top of the battery cell supporting seat, a plurality of supporting seat clapboards are arranged on the battery cell supporting seat, a plurality of connecting seat clapboards are correspondingly arranged on the battery cell connecting seat, the supporting seat clapboards and the connecting seat clapboards jointly separate the battery cell from the module frame and two adjacent battery cells in the same row respectively to form an air flow passage, a battery cell pressing and fixing piece is pressed on the battery cell connecting seat and stretches across all the battery cells, and the battery cells are fixed on the module frame together with the battery cell supporting seat and the battery cell connecting seat;
the battery core monitoring and heating device comprises a battery core bottom heating film and symmetrically arranged battery core side heating films, wherein the battery core bottom heating film is positioned below the battery core and extends along the arrangement direction of the battery core, the battery core side heating films are symmetrically arranged at two sides of the battery core and extend along the arrangement direction of the battery core, and the battery core bottom heating film and the battery core side heating films are controlled by a battery management system to operate;
the battery cell monitoring and heating device also comprises a signal acquisition terminal for acquiring voltage and temperature information of each battery cell, and the signal output end of the signal acquisition terminal is electrically connected with the battery management system;
each the electrode of electricity core corresponds the electric connection through electric connecting plate, the signal acquisition terminal is fixed in on the electric connecting plate, electric connecting plate with the higher authority of electricity core connecting seat covers jointly and is equipped with the module end cover.
As an improved scheme, a supporting seat heat dissipation groove is formed in the position, opposite to the battery cell thickness surface, of the battery cell supporting seat.
As an improved scheme, the main body of the battery cell supporting seat is of an L-shaped plate structure and comprises a supporting bottom plate and a supporting vertical plate, the battery cell supporting seats are arranged at two ends of the bottom of the battery cell in pairs, and a plurality of supporting seat partition plates are uniformly distributed along the length direction of the main body of the battery cell supporting seat and are integrally formed with the supporting bottom plate and the supporting vertical plate.
As an improved scheme, a connecting seat heat dissipation hole is formed in the position, corresponding to the gap between two adjacent battery cells, of each battery cell connecting seat;
electrode abdicating holes are formed in the positions, corresponding to the electrodes, of the two side parts of the battery cell connecting seat, an insulating bulge is arranged on the battery cell connecting seat, the insulating bulge is of a U-shaped structure with an opening facing one side edge of the battery cell connecting seat, and the electrode abdicating holes corresponding to the same electrode polarity are isolated in the insulating bulge;
a relief valve abdicating diversion trench extending along the battery cell arrangement direction is formed below the battery cell connecting seat and corresponding to the relief valve of the battery cell;
both sides below the electric core connecting seat and edge all are equipped with the connecting seat baffle to its position that corresponds the thickness face of electric core has all seted up the connecting seat radiating groove.
As an improved scheme, an end cover heat dissipation hole is formed in the position, corresponding to the electric connection plate, of the module end cover;
the two opposite side surfaces of the module end cover are provided with buckles, the battery cell connecting seat is correspondingly provided with a clamping groove matched with the battery cell connecting seat, and the other two opposite surfaces of the module end cover are provided with a circuit abdicating groove and a circuit card;
the side face of the module end cover corresponding to the insulating bulge is matched with the module end cover.
As an improved scheme, the cell pressing and fixing piece comprises a pressing and fixing piece main body made of a C-shaped material and a reinforcing installation piece, a plurality of weight-reducing through holes are formed in the pressing and fixing piece main body along the length direction of the pressing and fixing piece main body, the pressing and fixing piece main body comprises a pressing plate and two installation vertical plates, the pressing plate is transversely arranged, the installation vertical plates are vertically arranged at two ends of the pressing plate, and the lower ends of the installation vertical plates are fixedly installed on the module frame;
the reinforcing installation part is fixedly arranged on the outer side of the joint of the pressing plate and the installation vertical plate, and a copper bar fixing hole, a wiring harness installation hole and a module installation hole are formed in the installation surface of the reinforcing installation part.
As an improved scheme, a plurality of cell supporting plates extending along the cell arrangement direction are arranged at the bottom of the module frame, the cell supporting plates are of hollow structures and are provided with vertical partition plates extending along the length direction of the cell supporting plates, and two adjacent columns of cells are separated by the vertical partition plates to form air flow channels;
and the positions of the upper edges of the frames of the module frame, which correspond to the cell pressing and fixing pieces, are provided with pressing and fixing piece limiting grooves.
As an improved scheme, the two adjacent columns of electric connection are arranged on the electric connection plate of the electrodes of the battery cell, the electric connection plate comprises an electric connection main plate and a plurality of welding fins arranged on two sides of the electric connection main plate, and a gap is reserved between every two adjacent welding fins.
As an improved scheme, a plurality of heating film through holes are formed in the heating film at the bottom of the battery core.
As an improved scheme, all the cell bottom heating films and the cell side heating films are electrically connected with a heating bus through heating branching lines respectively, and the heating bus is electrically connected with the battery management system;
all the signal acquisition terminals are electrically connected with a signal bus through signal distributing lines respectively, and the signal output end of the signal bus is electrically connected with the battery management system.
The utility model provides a square battery cell module adopts the frame-type structure of full fretwork, can alleviate the full weight effectively under the prerequisite of guaranteeing structural strength to be favorable to the heat dissipation of electric core, simplify the module assembly process, can make whole module have higher energy density and great electric core weight to account for simultaneously; meanwhile, the module is transparent in the vertical direction, a large gap exists between the electric core and the electric core, and the supporting surface for supporting the electric core is distributed in a dispersed manner, so that a large space gap exists around the electric core; and heat the electric core from the three face of electric core through electric bottom heating film and electric core side heating film, can make electric core reach suitable service temperature fast under low temperature environment to the life of whole module is prolonged.
The utility model provides a square electricity core module, simple structure, have good heating and heat dispersion, low in manufacturing cost, energy density is high.
Drawings
Fig. 1 is a schematic structural diagram of a square battery cell module provided by the present invention;
fig. 2 is an exploded view of the square cell module shown in fig. 1;
figure 3 is a schematic diagram of the square cell module (without the module end cap) of figure 1;
fig. 4 is a schematic structural diagram of a module frame provided by the present invention;
fig. 5 is an assembly schematic diagram of a single-row battery cell provided by the present invention;
fig. 6 is a schematic structural diagram of a cell supporting seat provided by the present invention;
fig. 7 is a schematic structural diagram of an upward viewing angle of the cell connecting seat provided by the present invention;
fig. 8 is a schematic structural diagram of a downward view angle of the cell connecting socket shown in fig. 7;
fig. 9 is a schematic structural diagram of the cell pressing and fixing member provided by the present invention;
fig. 10 is a schematic structural diagram of a module end cap provided by the present invention;
fig. 11 is a schematic structural diagram of a cell bottom heating film provided by the present invention;
fig. 12 is a schematic structural view of an electrical connection plate provided by the present invention;
wherein: 1-module frame, 11-cell support plate, 12-vertical isolation plate, 13-press firmware limiting groove, 2-cell, 31-cell support seat, 311-support bottom plate, 312-support vertical plate, 313-support seat baffle, 314-support seat heat sink, 32-cell connection seat, 321-connection seat baffle, 322-connection seat heat sink, 323-electrode abdicating hole, 324-insulation protrusion, 325-relief valve abdicating diversion groove, 326-connection seat baffle, 327-connection seat heat sink, 328-card slot, 33-cell press firmware, 331-press firmware body, 332-reinforcement mounting piece, 3321-copper bar fixing hole, 3322-harness mounting hole, 3323-module mounting hole, 34-electric connection plate, 341-electric connection mainboard, 342-welding fin, 35-module end cover, 351-end cover heat dissipation hole, 352-bayonet, 353-line abdicating groove, 354-line card, 41-electric core bottom heating film, 411-heating film through hole, 42-electric core side heating film, 43-heating branching, 44-heating bus, 45-signal acquisition terminal, 46-signal branching and 47-signal bus.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 to fig. 3 collectively show the structural schematic diagram of the square battery cell module provided by the present invention, and for convenience of description, the present drawing only provides the structural parts related to the present invention.
The square battery cell module comprises a module frame 1 and a plurality of battery cells 2 arranged in the module frame, the module frame 1 is a fully hollow frame structure, at least two rows of battery cells 2 are arranged in the module frame 1, in this embodiment, taking a square battery cell module with five rows of battery cells as an example, as shown in fig. 4, four battery cell supporting plates 11 extending along the arrangement direction of the battery cells are arranged at the bottom of the module frame 1, the battery cell supporting plates 11 are hollow structures, and is provided with a vertical isolation plate 12 extending along the length direction, two adjacent lines of battery cores are separated by the vertical isolation plate 12, and form an air flow passage, the module frame adopting the structure can effectively reduce the weight of the module frame on the premise of ensuring the structural strength of the module frame, the gap between two adjacent rows of battery cells is increased, so that the heat dissipation of the battery cells is facilitated, the assembly process of the module is simplified, and the whole module has higher energy density and larger weight ratio of the battery cells;
a battery cell fixing device and a battery cell monitoring and heating device are arranged in the module frame 1;
as shown in fig. 5, the cell fixing device includes a cell supporting seat 31 correspondingly disposed at the bottom of the cell 2 and a cell connecting seat 32 correspondingly disposed at the top of the cell supporting seat, in this embodiment, as shown in fig. 6, a main body of the cell supporting seat 31 is in an L-shaped plate structure, and includes a supporting bottom plate 311 and a supporting vertical plate 312, the cell supporting seats 31 are disposed at two ends of the bottom of the cell 2 in pairs, a plurality of supporting seat partition plates 313 are uniformly disposed on the main body of the cell supporting seat 31 along a length direction thereof, so as to separate between the cell 2 and the module frame 1 in the same column and between two adjacent cells 2, thereby achieving effective insulation and facilitating heat convection and heat dissipation of the cell 2, and a heat dissipation groove 314 is disposed on the supporting bottom plate 311 and the supporting vertical plate 312 between the two adjacent supporting seat partition plates 313 and corresponding to a cell thickness plane, meanwhile, the weight of the whole battery cell module can be reduced;
in this embodiment, as shown in fig. 7 and 8, a plurality of connecting seat partition boards 321 are disposed below two sides of the cell connecting seat 32 corresponding to the positions of the supporting seat partition boards 313, the supporting seat partition boards 311 and the connecting seat partition boards 321 jointly separate the cells 2 from the module frame 1 and the two adjacent cells 2 in the same row, respectively, and form an air flow channel, on the premise of ensuring the relative fixation between the adjacent cells 2, the heat convection and large-area heat dissipation of the cells 2 are enhanced, a connecting seat heat dissipation hole 322 is disposed at the middle of the cell connecting seat 32 corresponding to the gap between the adjacent two cells 2, so as to enhance the permeability of the gap between the cells 2 and enhance the heat convection and heat dissipation effects thereof, electrode relief holes 323 are disposed at the two sides of the cell connecting seat 32 corresponding to the positions of the electrodes, an insulating protrusion 324 is disposed on the cell connecting seat 32, and the insulating protrusion 324 is in a U, and the electrode receding holes 323 corresponding to the same electrode polarity are isolated, which is beneficial to the installation of the module end cover 35, realizes good insulation effect, a pressure relief valve abdicating diversion trench 325 extending along the arrangement direction of the electric core 2 is arranged below the electric core connecting seat 32 and corresponding to the pressure relief valve of the electric core 2, which is beneficial to abdicating when the pressure relief valve in the electric core 2 releases gas, and can guide the leaked electrolyte to the side edge of the battery cell 2 to prevent the electrolyte from being connected to the positive and negative electrodes of the battery cell 2 to cause short circuit, connecting seat baffles 326 are respectively arranged at the two sides and the corners under the cell connecting seat 32, so as to effectively protect the corners and the sides of the cell 2 and ensure the isolation clearance, the positions of the connecting seat heat dissipation grooves 327 corresponding to the thickness surface of the battery core 2 are all provided, so that the exposed area of the battery core is further increased, more efficient heat dissipation is realized, and the weight of the whole battery core module can be reduced;
a cell pressing part 33 is pressed on the cell connecting seat 32, the cell pressing part 33 spans all the cells 2, as shown in fig. 9, the cell pressing part includes a pressing part main body 331 made of a C-shaped material and a reinforcing installation part 332, the pressing part main body 331 is provided with a plurality of weight-reducing through holes (not marked in the figure) along the length direction thereof, the pressing part main body 331 includes a pressing plate transversely arranged and two installation vertical plates vertically arranged at both ends of the pressing plate, so that not only is weight effectively reduced, but also the heat convection and heat dissipation capability of the cell gap can be enhanced, the lower ends of the installation vertical plates are fixedly installed on the module frame 1, and the positions of the upper side of the frame of the module frame 1 corresponding to the cell pressing part 33 are respectively provided with a pressing part limiting groove 13, so that the cell pressing part 33 can be conveniently positioned and installed, and the cell pressing part 33 can be effectively limited, and can;
the reinforcing installation piece 332 is fixedly arranged on the outer side of the joint of the pressing plate and the installation vertical plate, a copper bar fixing hole 3321, a wiring harness installation hole 3322 and a module installation hole 3323 are formed in the installation surface of the reinforcing installation piece, the copper bar fixing hole is used for installing a battery box copper bar, the wiring harness installation hole 3322 is used for fixing a heating bus and a signal bus, and the module installation hole 3323 is used for installing and fixing a module and is convenient to install on a support lug in the battery box;
the battery cell fixing device with the structure is adopted to fix the battery cell 2 on the module frame 1, so that the module is through in the up-and-down direction on the premise of ensuring the installation stability of the battery cell 2, a larger gap exists between the battery cell and the battery cell, the heat convection and heat dissipation effects are enhanced, and the energy density of the module is improved;
the electrodes of each electric core 2 are correspondingly electrically connected through the electric connecting plate 34, the module end cover 35 is jointly covered on the electric connecting plate 34 and the electric core connecting seat 32, as shown in fig. 10, the position of the module end cover 35 corresponding to the electric connecting plate 34 is provided with an end cover heat radiation hole 351, heat generated by the electric connecting plate 34 in the working process can be rapidly diffused to the external environment, the heat can be prevented from being diffused to the inside of the electric core 2, meanwhile, the module end cover is made of materials with high heat conductivity coefficient, the rapid outward diffusion of the heat is facilitated, the two opposite side surfaces on the module end cover 35 are provided with buckles 352, the electric core connecting seat 32 is correspondingly provided with clamping grooves 328 matched with the electric core connecting seat, the module end cover 35 can be conveniently installed on the electric core connecting seat 32, the reliable fixation is realized, the other two opposite sides on the module end cover 35 are provided with line abdicating grooves 353 and line, the side surface of the module end cover 35 corresponding to the insulation protrusion 324 is adapted to the side surface, so that the module end cover 35 and the battery core connecting seat 32 can be tightly attached to each other, and a good insulation environment is formed between the module end cover 35 and the battery core connecting seat;
the cell monitoring and heating device comprises a cell bottom heating film 41 and cell side heating films 42 which are symmetrically arranged, wherein the cell bottom heating film 41 is positioned below a cell 2 and extends along the arrangement direction of the cell, the cell side heating films 42 are symmetrically arranged at two sides of the cell 2 and extend along the arrangement direction of the cell, so that the cell 2 is heated from three surfaces of the cell 2, the cell 2 can quickly reach the proper use temperature in a low-temperature environment, the cell side heating film 42 and the cell bottom heating film 41 are electrically connected with a heating bus 44 through a heating branching line 43, the heating bus 44 is electrically connected with a battery management system, the heating bus 44 is connected with a heating relay in series, the heating relay is controlled to be opened and closed by 12V voltage output by the battery management system, and therefore the heating functions of the cell bottom heating film 41 and the cell side heating film 42 are controlled to be opened and closed under a certain temperature condition, in this embodiment, as shown in fig. 11, a plurality of heating film through holes 411 are formed in a heating film 41 at the bottom of the battery cell, which is beneficial to heat dissipation and ventilation in the up-and-down direction of the battery cell module, and is beneficial to convection in the up-and-down direction of heat and heat dissipation of the battery cell 2, thereby improving the heat balance effect of the module;
the cell monitoring and heating device further comprises signal acquisition terminals 45 for acquiring voltage and temperature information of each cell, the signal acquisition terminals 45 are fixed on the electrical connection plate 34, all the signal acquisition terminals 45 are electrically connected with a signal bus 47 through signal branching lines 46 respectively, the signal output end of the signal bus 47 is electrically connected with a battery management system, the signal acquisition terminals can transmit voltage and temperature parameters of each cell to the Battery Management System (BMS) in real time, and the battery management system controls the cell bottom heating film 41 and the cell side heating film 42 to heat the cells if necessary;
after the battery core monitoring heating device is adopted, when the battery management system detects that the temperature of the battery core is lower than 0 ℃ through the signal acquisition terminal 45, the battery management system automatically gives a heating relay closing command to start heating the battery core module; when the temperature of the battery core reaches an ideal temperature condition, the battery management system gives a stop instruction, the heating relay is disconnected, and the heating film 41 at the bottom of the battery core and the heating film 42 at the side edge of the battery core stop heating; therefore, the battery cell is ensured to work in a proper temperature environment, the point discharging efficiency is ensured, and the service life is prolonged.
In this embodiment, as shown in fig. 12, the electric connection plate 34 electrically connecting the electrodes of two adjacent columns of battery cells includes an electric connection main board 341 and a plurality of welding fins 342 disposed on two sides of the electric connection main board, a gap is left between two adjacent welding fins 342, so that it is convenient to weld the electrode on the electrode through the bending deformation of the welding fins 342 according to the height direction between the battery cell 2 and the battery cell 2, thereby ensuring the close fit between the electric connection plate 34 and the battery cell 2, and meanwhile, the electric connection plate has the buffer and shock-absorbing effects.
The utility model provides a square electricity core module, simple structure, have good heating and heat dispersion, low in manufacturing cost, energy density is high.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A square battery cell module comprises a module frame and a plurality of battery cells arranged in the module frame, and is characterized in that the module frame is of a fully-hollow frame structure, at least two rows of battery cells are arranged in the module frame, and a battery cell fixing device and a battery cell monitoring and heating device are arranged in the module frame;
the battery cell fixing device comprises a battery cell supporting seat correspondingly arranged at the bottom of the battery cell and a battery cell connecting seat arranged at the top of the battery cell supporting seat, a plurality of supporting seat clapboards are arranged on the battery cell supporting seat, a plurality of connecting seat clapboards are correspondingly arranged on the battery cell connecting seat, the supporting seat clapboards and the connecting seat clapboards jointly separate the battery cell from the module frame and two adjacent battery cells in the same row respectively to form an air flow passage, a battery cell pressing and fixing piece is pressed on the battery cell connecting seat and stretches across all the battery cells, and the battery cells are fixed on the module frame together with the battery cell supporting seat and the battery cell connecting seat;
the battery core monitoring and heating device comprises a battery core bottom heating film and symmetrically arranged battery core side heating films, wherein the battery core bottom heating film is positioned below the battery core and extends along the arrangement direction of the battery core, the battery core side heating films are symmetrically arranged at two sides of the battery core and extend along the arrangement direction of the battery core, and the battery core bottom heating film and the battery core side heating films are controlled by a battery management system to operate;
the battery cell monitoring and heating device also comprises a signal acquisition terminal for acquiring voltage and temperature information of each battery cell, and the signal output end of the signal acquisition terminal is electrically connected with the battery management system;
the electrodes of the electric cores are correspondingly and electrically connected through an electric connecting plate, the signal acquisition terminal is fixed on the electric connecting plate, and a module end cover is jointly covered on the electric connecting plate and the electric core connecting seat;
a supporting seat heat dissipation groove is formed in the position, opposite to the battery cell thickness surface, of the battery cell supporting seat;
the battery cell supporting seat is characterized in that a main body of the battery cell supporting seat is of an L-shaped plate structure and comprises a supporting bottom plate and a supporting vertical plate, the battery cell supporting seats are arranged at two ends of the bottom of the battery cell in pairs, and a plurality of supporting seat partition plates are uniformly distributed and arranged along the length direction of the battery cell supporting seat main body and are integrally formed with the supporting bottom plate and the supporting vertical plate.
2. The square cell module of claim 1, wherein: the middle part of the battery cell connecting seat is provided with a connecting seat heat dissipation hole corresponding to the position of the gap between two adjacent battery cells;
electrode abdicating holes are formed in the positions, corresponding to the electrodes, of the two side parts of the battery cell connecting seat, an insulating bulge is arranged on the battery cell connecting seat, the insulating bulge is of a U-shaped structure with an opening facing one side edge of the battery cell connecting seat, and the electrode abdicating holes corresponding to the same electrode polarity are isolated in the insulating bulge;
a relief valve abdicating diversion trench extending along the battery cell arrangement direction is formed below the battery cell connecting seat and corresponding to the relief valve of the battery cell;
both sides below the electric core connecting seat and edge all are equipped with the connecting seat baffle to its position that corresponds the thickness face of electric core has all seted up the connecting seat radiating groove.
3. The square cell module of claim 2, wherein: the module end cover is provided with end cover heat dissipation holes corresponding to the positions of the electric connection plates;
the two opposite side surfaces of the module end cover are provided with buckles, the battery cell connecting seat is correspondingly provided with a clamping groove matched with the battery cell connecting seat, and the other two opposite surfaces of the module end cover are provided with a circuit abdicating groove and a circuit card;
the side face of the module end cover corresponding to the insulating bulge is matched with the module end cover.
4. The square cell module of claim 1, wherein: the cell pressing and fixing part comprises a pressing and fixing part main body made of C-shaped material and a reinforcing installation part, a plurality of weight-reducing through holes are formed in the pressing and fixing part main body along the length direction of the pressing and fixing part main body, the pressing and fixing part main body comprises a pressing plate and two installation vertical plates, the pressing plate is transversely arranged, the two installation vertical plates are vertically arranged at two ends of the pressing plate, and the lower ends of the installation vertical plates are fixedly installed on the module frame;
the reinforcing installation part is fixedly arranged on the outer side of the joint of the pressing plate and the installation vertical plate, and a copper bar fixing hole, a wiring harness installation hole and a module installation hole are formed in the installation surface of the reinforcing installation part.
5. The square cell module of claim 1, wherein: the bottom of the module frame is provided with a plurality of cell supporting plates extending along the cell arrangement direction, each cell supporting plate is of a hollow structure and is provided with a vertical partition plate extending along the length direction of the cell supporting plate, and two adjacent columns of cells are separated by the vertical partition plate to form an air flow channel;
and the positions of the upper edges of the frames of the module frame, which correspond to the cell pressing and fixing pieces, are provided with pressing and fixing piece limiting grooves.
6. The square cell module of claim 5, wherein: the electric connection board includes the electric connection mainboard and set up in a plurality of welding fins of electric connection mainboard both sides, adjacent two leave the clearance between the welding fin.
7. The square cell module of any of claims 1 to 6, wherein: and a plurality of heating film through holes are formed in the heating film at the bottom of the battery core.
8. The square cell module of claim 1, wherein: all the cell bottom heating films and the cell side heating films are electrically connected with a heating bus through heating branching lines respectively, and the heating bus is electrically connected with the battery management system;
all the signal acquisition terminals are electrically connected with a signal bus through signal distributing lines respectively, and the signal output end of the signal bus is electrically connected with the battery management system.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018217138493 | 2018-10-23 | ||
| CN201821713849 | 2018-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211743202U true CN211743202U (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921781673.XU Expired - Fee Related CN211743202U (en) | 2018-10-23 | 2019-10-22 | Square electricity core module |
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| Country | Link |
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| CN (1) | CN211743202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216621A (en) * | 2018-10-23 | 2019-01-15 | 潘泓杞 | A kind of square electric core model group |
-
2019
- 2019-10-22 CN CN201921781673.XU patent/CN211743202U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216621A (en) * | 2018-10-23 | 2019-01-15 | 潘泓杞 | A kind of square electric core model group |
| CN109216621B (en) * | 2018-10-23 | 2024-01-02 | 潘泓杞 | Square cell module |
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Granted publication date: 20201023 Termination date: 20211022 |