CN209912980U - Electricity core hot press unit - Google Patents
Electricity core hot press unit Download PDFInfo
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- CN209912980U CN209912980U CN201921185579.8U CN201921185579U CN209912980U CN 209912980 U CN209912980 U CN 209912980U CN 201921185579 U CN201921185579 U CN 201921185579U CN 209912980 U CN209912980 U CN 209912980U
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model provides an electricity core hot press unit. The utility model discloses electricity core hot press unit, include: a first hot-pressing assembly, a second hot-pressing assembly, a first heating member, a second heating member, a third heating member, and a fourth heating member; first hot pressboard, second hot pressboard, first heating member, second heating member, third heating member and fourth heating member form the accommodation space who holds electric core. The utility model discloses electricity core hot press unit carries out the hot pressing to electric core through first hot pressboard and second hot pressboard, simultaneously, sets up first heating member, second heating member, third heating member and fourth heating member around electric core respectively, heats around electric core, improves electric core edge hot pressing and pastes bad problem, reduces the emergence rate that the wrong layer problem takes place for soft or whole utmost point group partially of utmost point group, improves the production qualification rate of electric core.
Description
Technical Field
The utility model relates to a battery processing technology field especially relates to an electricity core hot press unit.
Background
The lithium ion battery has the advantages of high specific energy, long service life, safety, environmental protection and the like, and is widely applied to the fields of notebook computers, mobile phones, digital cameras, electric automobiles, energy storage and the like. With the continuous development of the demands of computers, mobile phones, electric vehicles and the like, batteries are required to have higher energy density. And in the lithium ion battery production and processing technology, the winding or lamination processing is completed on the battery cell, and the pole group is required to be subjected to hot pressing treatment, so that the diaphragm and the pole piece are better attached, meanwhile, the pole group after hot pressing is firmer, dislocation between the battery cell pole piece and the diaphragm and wrinkles of the diaphragm can be effectively prevented in the process of circulation and assembly of the battery cell in the post process, and the safety of the lithium battery is greatly improved.
The existing hot pressing device comprises an upper hot pressing plate 1 and a lower hot pressing plate 2 which are arranged at intervals relatively, and an electric core 3 is arranged between the upper hot pressing plate 1 and the lower hot pressing plate 2. As shown in fig. 1, the battery cell 3 includes a plurality of pole pieces and diaphragms stacked together, the upper hot press plate 1 is parallel to a first surface of the battery cell 3, and the lower hot press plate 2 is parallel to a second surface of the battery cell 3, where the first surface is an upper surface parallel to the pole pieces of the battery cell 3, and the second surface is a lower surface parallel to the battery cell 3. When the electric core 3 is subjected to hot-pressing shaping, the upper hot-pressing plate 1 is in contact with the upper surface of the electric core 3 to downwardly extrude the electric core 3, and the temperature of the upper hot-pressing plate 1 is transmitted to the electric core 3 at the same time; lower hot pressboard 2 upwards extrudes electric core 3 with the lower surface contact of electric core 3, and electric core 3 also can be passed to simultaneously to the temperature of lower hot pressboard 2 to the realization is to electric core 3's hot pressing.
The laminated battery cell belongs to layered stacking, gaps exist among each layer of pole pieces, and heat is easy to lose on four side surfaces of the battery cell; and because preheating and hot pressing have certain time difference, it has certain temperature to turn to the hot pressing process after preheating is accomplished and reduces, especially there is the temperature reduction more in the side of electric core, hot pressing does not have thermal compensation simultaneously, limit portion temperature obviously than central temperature on the low side, lead to the bonding glue of electric core limit portion not complete melting, electric core hot pressing effect is bad all around for there is the bonding insecure between pole piece and the diaphragm, easily takes place the pole group and partially soft or whole pole group takes place the problem of staggered floor, thereby reduce the production qualification rate of electric core.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electricity core hot press unit to solve current electric core when hot pressing, there is the temperature to reduce more side all around, does not have thermal compensation in the hot pressing, leads to the bonding of electric core limit portion to glue not complete melting, and electric core hot pressing effect all around is bad, makes to have the bonding insecure between pole piece and the diaphragm, takes place easily that the utmost point group is soft partially or whole utmost point group takes place the technical problem of staggered floor.
The utility model provides an electricity core hot press unit, it includes: a first hot-pressing assembly, a second hot-pressing assembly, a first heating member, a second heating member, a third heating member, and a fourth heating member; the first hot-pressing assembly comprises a first hot-pressing plate parallel to a first surface of the battery cell, and the first hot-pressing plate is used for abutting against the first surface; the second hot-pressing assembly comprises a second hot-pressing plate parallel to the second surface of the battery cell, and the second hot-pressing plate is used for abutting against the second surface; the first heating element is located on a first side surface of the battery cell, the second heating element is located on a second side surface of the battery cell, the third heating element is located on a third side surface of the battery cell, and the fourth heating element is located on a fourth side surface of the battery cell; the first hot pressboard, the second hot pressboard first heating member the second heating member third heating member and the fourth heating member form and hold the accommodation space of electric core.
As the utility model discloses an above-mentioned electric core hot press unit's improvement, first heating member includes that first hot plate and setting are in first resistance in the first hot plate, first hot plate with first hot pressboard is perpendicular.
As the utility model discloses an above-mentioned electric core hot press unit's improvement, the second heating member includes the second hot plate and sets up second resistance in the second hot plate, the second hot plate with first hot platen is perpendicular.
As the utility model discloses an above-mentioned electric core hot press unit's improvement, the third heating member includes that the third hot plate and setting are in third resistance in the third hot plate, the third hot plate with first hot platen is perpendicular.
As the utility model discloses an above-mentioned electric core hot press unit's improvement, the fourth heating member includes the fourth hot plate and sets up fourth resistance in the fourth hot plate, the fourth hot plate with first hot platen is perpendicular.
As the utility model discloses an above-mentioned electric core hot press unit's improvement, the fourth hot plate is provided with first utmost point ear and dodges the opening with the second utmost point ear.
As an improvement of the above electrical core hot-pressing device of the present invention, the width of the first tab avoiding opening is 8mm larger than the width of the tab of the electrical core; the width of the second lug avoiding opening is 8mm larger than that of the lug of the battery cell.
As an improvement of the above-mentioned electrical core hot-pressing apparatus of the present invention, the electrical core hot-pressing apparatus further includes a first driver connected to the first heating member, a second driver connected to the second heating member, a third driver connected to the third heating member, and a fourth driver connected to the fourth heating member; the first driver can drive the first heating member to move towards or away from the battery core, the second driver can drive the second heating member to move towards or away from the battery core, the third driver can drive the third heating member to move towards or away from the battery core, and the fourth driver can drive the fourth heating member to move towards or away from the battery core.
As an improvement of the above-mentioned electric core hot-pressing device of the present invention, the distance between the first heating member and the first side surface of the electric core is 1-2 mm; the distance between the second heating element and the second side surface of the battery core is 1-2 mm; the distance between the third heating element and the third side surface of the battery core is 1-2 mm; the distance between the fourth heating element and the fourth side face of the battery core is 1-2 mm.
As an improvement of the above electrical core hot press apparatus of the present invention, the first hot press assembly further comprises a first pressurizing device connected to the first hot press plate.
Compared with the prior art, the utility model provides an electricity core hot press unit has following advantage:
the utility model provides an electricity core hot press unit carries out the hot pressing to electric core through first hot pressboard and second hot pressboard, simultaneously, sets up first heating member, second heating member, third heating member and fourth heating member around electric core respectively, heats around electric core, improves the bad problem of electric core edge hot pressing paste, reduces the incidence that the utmost point group is soft partially or whole utmost point group takes place the staggered floor problem, improves the production qualification rate of electric core.
In addition to the technical problems, technical features constituting technical solutions, and advantageous effects brought by the technical features of the technical solutions described above, other technical problems that can be solved by the electric core hot pressing apparatus, other technical features included in the technical solutions, and advantageous effects brought by the technical features of the present invention will be described in further detail in specific embodiments.
Drawings
The above and other objects, features and advantages of the embodiments of the present invention will become more readily understood from the following detailed description with reference to the accompanying drawings. Embodiments of the invention will be described, by way of example and not by way of limitation, in the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a conventional cell hot-pressing device during operation;
fig. 2 is a top view of the cell hot-pressing apparatus provided in the embodiment of the present invention during operation;
fig. 3 is a front view of the cell hot-pressing apparatus provided by the embodiment of the present invention during operation.
Description of reference numerals:
1: an upper hot pressing plate;
2: a lower hot pressing plate;
3: an electric core;
31: a tab;
10: a first hot press plate;
20: a second hot press plate;
30: a first heating member;
40: a second heating member;
50: a third heating member;
60: a fourth heating member;
61: a first tab avoiding opening;
62: the second pole ear avoids the opening.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Fig. 2 is a top view of the cell hot-pressing apparatus provided in the embodiment of the present invention during operation; fig. 3 is a front view of the cell hot-pressing apparatus provided by the embodiment of the present invention during operation.
Referring to fig. 2 and 3, an embodiment of the present invention provides an electricity core hot press unit, which includes: a first hot-pressing assembly, a second hot-pressing assembly, a first heating member, a second heating member, a third heating member, and a fourth heating member; the first hot-pressing assembly comprises a first hot-pressing plate 10 parallel to the first surface of the battery cell 3, and the first hot-pressing plate 10 is used for abutting against the first surface; the second hot-pressing assembly comprises a second hot-pressing plate 20 parallel to the second surface of the battery core 3, and the second hot-pressing plate 20 is used for abutting against the second surface; the first heating element 30 is located on a first side surface of the battery cell 3, the second heating element 40 is located on a second side surface of the battery cell 3, the third heating element 50 is located on a third side surface of the battery cell 3, and the fourth heating element 60 is located on a fourth side surface of the battery cell 3; the first hot press plate 10, the second hot press plate 20, the first heating member 30, the second heating member 40, the third heating member 50, and the fourth heating member 60 form an accommodation space for accommodating the battery cell 3.
First, it should be noted that the battery cell 3 includes a pole piece and a diaphragm which are stacked, and the upper surface and the lower surface of the battery cell are parallel to the pole piece. In the hot pressing, the upper surface and the lower surface of the battery cell 3 need to be pressed simultaneously.
The first hot pressing plate 10 of the first hot pressing assembly is parallel to a first surface of the battery cell 3, where the first surface is an upper surface of the battery cell 3. It should be noted that, in the embodiment of the present invention, the directional words "upper", "lower", "left" and "right" are described based on fig. 2 and fig. 3 as examples. First hot pressboard 10 can heat the first surface of electric core 3, and it can include first plate body structure and set up the resistance in first plate body structure, generates heat to the resistance circular telegram to heat the first surface of electric core 3, make the bonding glue in the electric core 3 melt. Of course, the first hot press plate 10 may have other heating structures.
The first hot pressing assembly further needs to apply pressure to the first surface of the battery cell 3, and for this reason, the first hot pressing assembly further includes a first pressing device (not shown in the drawings) connected to the first hot pressing plate 10, for example, the first pressing device may be a hydraulic cylinder, an air cylinder, or the like, and the embodiment of the present invention is not limited herein. The first pressurizing device drives the first hot pressing plate 10 to move towards the second hot pressing plate 20 so as to extrude the battery cell 3, so that the diaphragm and the pole piece of the battery cell 3 can be better attached to each other. Of course, the first hot press assembly may be the structure of the existing upper hot press plate.
A second hot pressing plate 20 of the second hot pressing assembly is parallel to a second surface of the battery cell 3, where the second surface is a lower surface of the battery cell 3. The second hot pressing plate 20 can heat the second surface of the battery cell 3, and may include a second plate body and a resistor disposed in the second plate body structure, and the resistor is energized to generate heat, so as to heat the second surface of the battery cell 3, and melt the adhesive in the battery cell 3. Of course, the second hot press plate 20 may have other heating structures.
The second hot pressing assembly further needs to apply pressure to the second surface of the battery cell 3, and for this reason, the second hot pressing assembly further includes a second pressing device (not shown in the drawings) connected to the second hot pressing plate 20, for example, the second pressing device may be a hydraulic cylinder, an air cylinder, or the like, which is not limited thereto by the embodiment of the present invention. The second pressurizing device drives the second hot pressing plate 20 to move towards the first hot pressing plate 10 so as to extrude the battery cell 3, so that the diaphragm and the pole piece of the battery cell 3 can be better attached to each other.
In practical application, the second hot pressing assembly may not need to be provided with the second pressurizing device, and the second hot pressing assembly only needs the second hot pressing plate 20 to heat the second surface of the battery cell 3, at this time, the second hot pressing plate 20 needs to be placed on a stable workbench, and the first hot pressing plate 10 moves towards the second hot pressing plate 20 under the driving of the first pressurizing device, and is matched with the second hot pressing plate 20 to extrude the battery cell.
A first heating element 30 is arranged on the first side surface of the electric core 3, and is used for heating the first side surface of the electric core 3 and providing temperature compensation for the first side surface of the electric core 3, so that the influence of incomplete melting of bonding glue on the first side surface of the electric core 3 on the hot pressing effect is avoided; a second heating element 40 is arranged on the second side surface of the battery core 3, the second side surface of the battery core 3 is heated, temperature compensation is provided for the second side surface of the battery core 3, and the hot pressing effect is prevented from being influenced by incomplete melting of the bonding glue on the second side surface of the battery core 3; a third heating element 50 is arranged on the third side surface of the electric core 3, the third side surface of the electric core 3 is heated, temperature compensation is provided for the third side surface of the electric core 3, and the hot pressing effect is prevented from being influenced by incomplete melting of the bonding glue on the third side surface of the electric core 3; set up fourth heating member 60 at the fourth side of electric core 3, heat the fourth side of electric core 3, provide temperature compensation to the fourth side of electric core 3, avoid electric core 3 fourth side bonding glue not complete melting and influence the hot pressing effect. That is, electric core 3 is located first hot pressboard 10, second hot pressboard 20, first heating member 30, second heating member 40, third heating member 50 and fourth heating member 60 and forms the accommodation space who holds, realizes the heat preservation of six directions to electric core 3, effectively avoids electric core 3 marginal temperature loss and causes pole piece and the insecure problem of diaphragm bonding.
It should be noted that, as the structure for heating the first side surface, the first heating member 30 may have various specific structures, for example, a heating plate structure, a heating ring structure, etc., and is not limited herein. The second heating member 40 is provided as a structure for heating the second side surface, and the specific structure thereof may be various, for example, a heating plate structure, a heating ring structure, etc., and is not limited herein. The third heating member 50 is provided as a structure for heating the third side surface, and the specific structure thereof may be various, for example, a heating plate structure, a heating ring structure, etc., and is not limited herein. The fourth heating member 60 is used as a structure for heating the fourth side, and the specific structure thereof may be various, for example, a heating plate structure, a heating ring structure, etc., and is not limited herein.
The embodiment of the utility model provides a battery core hot press unit carries out the hot pressing to electric core through first hot pressboard and second hot pressboard, simultaneously, sets up first heating member, second heating member, third heating member and fourth heating member around electric core respectively, heats around electric core, improves electric core edge hot pressing and pastes bad problem, reduces the incidence that the wrong layer problem takes place for the group of utmost point soft or whole utmost point group partially, improves the production qualification rate of electric core.
As a mode of the specific structure of the first heating element 30, the first heating element 30 includes a first heating plate and a first resistor disposed in the first heating plate, and the first heating plate is perpendicular to the first hot-pressing plate 10, and the first resistor is energized to generate heat, so as to heat the first side surface of the electric core 3 for temperature compensation.
Further, the embodiment of the present invention provides a cell hot pressing apparatus, further including a first driver (not shown in the figure) connected to the first heating member 30, where the first driver can drive the first heating member 30 to move toward or away from the cell 3. The first actuator may be a pneumatic cylinder, a hydraulic cylinder, etc., and is not limited thereto. Before placing electric core 3, the first driver of operation promotes first heating member 30 and deviates from the accommodation space motion to avoid first heating member 30 to collide electric core 3, make placing of electric core 3 more convenient. After the preset position of the second hot press plate 20 is placed on the battery cell 3, the first driver is operated to move towards the battery cell 3, and a preset distance is kept between the first driver and the battery cell 3. The distance between the first heating member 30 and the first side surface of the electric core 3 is 1 to 2mm based on consideration of a placement position error, a processing error, and the like of the electric core 3. The embodiment of the utility model provides an in, through the motion stroke of controlling first driver, guarantee the distance between first heating member 30 and 3 first sides of electricity core. Of course, a person skilled in the art may also provide a position detection device to detect the position of the first heating member 30 to determine the distance between the first heating member 30 and the first side surface of the electric core 3.
Further, in order to ensure that the first heating member 30 keeps moving linearly during the moving process without tilting, a guiding mechanism may be disposed between the upper surface of the second hot press plate 20 and the first heating member 30, for example, a guiding groove is disposed on the upper surface of the second hot press plate 20, and the first heating member 30 is provided with a guiding rail accommodated in the guiding groove, so that the first heating member 30 can move toward the electric core 3 or away from the electric core 3 along the guiding groove.
As a mode of the specific structure of the second heating element 40, the second heating element includes a second heating plate and a second resistor disposed in the second heating plate, the second heating plate is perpendicular to the first heating plate 10, and the second resistor is energized to generate heat, so as to heat the second side surface of the electric core 3 for temperature compensation.
Further, the embodiment of the present invention provides a cell hot pressing device, further include a second driver (not shown in the figure) connected with the second heating member 40, and the second driver can drive the second heating member 40 to move toward or away from the cell. The second actuator may be, but is not limited to, an air cylinder, a hydraulic cylinder, etc. Before placing electric core 3, operation second driver promotes second heating member 40 and deviates from the accommodation space motion to avoid second heating member 40 to collide electric core 3, make placing of electric core 3 more convenient. After the preset position of the second hot press plate 20 is placed on the battery cell 3, the second driver is operated to move towards the battery cell 3, and a preset distance is kept between the second driver and the battery cell 3. The distance between the second heating member 40 and the second side surface of the electric core 3 is 1 to 2mm based on consideration of a placement position error, a processing error, and the like of the electric core 3. The embodiment of the utility model provides an in, through the motion stroke of control second driver, guarantee the second and add the distance between the second side of heat-insulating material 30 and electric core 3. Of course, a person skilled in the art may also provide a position detection device to detect the position of the second heating member 30 to determine the distance between the second heating member 40 and the second side surface of the battery cell 3.
Further, in order to ensure that the second heating member 40 keeps moving linearly during the moving process without tilting, a guiding mechanism may be disposed between the upper surface of the second hot press plate 20 and the second heating member 30, for example, a guiding groove is disposed on the upper surface of the second hot press plate 20, and the second heating member 40 is provided with a guiding rail accommodated in the guiding groove, so that the second heating member 40 can move toward the electric core 3 or away from the electric core 3 along the guiding groove.
As a mode of the specific structure of the third heating element 50, the third heating element 50 includes a third heating plate and a third resistor disposed in the third heating plate, the third heating plate is perpendicular to the first heating plate 10, and the third resistor is electrified to generate heat, so as to heat the third side surface of the electric core 3 for temperature compensation.
Further, the embodiment of the present invention provides an electricity core hot press unit still includes the third driver (not shown in the figure) be connected with third heating member 50, and the third driver can drive the third heating member and move towards or keep away from electric core. The third actuator may be a pneumatic cylinder, a hydraulic cylinder, etc., and is not limited thereto. Before placing electric core 3, operation third driver promotes the third and adds heat-insulating material 50 and deviates from the accommodation space motion to avoid third to add heat-insulating material 50 collision electric core 3, make placing of electric core 3 more convenient. After the preset position of the second hot press plate 20 is placed on the battery cell 3, the third driver is operated to move toward the battery cell 3, and a preset distance is kept from the battery cell 3. The distance between the third heating member 50 and the third side surface of the electric core 3 is 1 to 2mm based on consideration of a placement position error, a machining error, and the like of the electric core 3. The embodiment of the present invention provides an in, through the motion stroke of controlling the third driver, guarantee the distance between third heating member 50 and the third side of electric core 3. Of course, a person skilled in the art may also provide a position detection device to detect the position of the third heating element 50, so as to determine the distance between the third heating element 50 and the third side surface of the battery cell 3.
Further, in order to ensure that the third heating member 50 keeps moving linearly during the moving process without tilting, a guiding mechanism may be disposed between the upper surface of the second hot press plate 20 and the third heating member 50, for example, a guiding groove is disposed on the upper surface of the second hot press plate 20, and the third heating member 50 is provided with a guiding rail accommodated in the guiding groove, so that the third heating member 50 can move toward the electric core 3 or away from the electric core 3 along the guiding groove.
As a mode of the specific structure of the fourth heating element 60, the fourth heating element includes a fourth heating plate and a fourth resistor disposed in the fourth heating plate, the fourth heating plate is perpendicular to the first heating plate, and the fourth resistor is energized to generate heat, so as to heat the fourth side surface of the electric core 3 for temperature compensation.
Further, the embodiment of the present invention provides a cell hot pressing apparatus, further including a fourth driver (not shown in the figure) connected to the fourth heating member 60, where the fourth driver can drive the fourth heating member 60 to move toward or away from the cell 3. The fourth driver may be a cylinder, a hydraulic cylinder, etc., and is not limited thereto. Before placing electric core 3, operation fourth driver promotes fourth heating member 60 and deviates from the accommodation space motion to avoid fourth heating member 60 to collide electric core 3, make placing of electric core 3 more convenient. After the battery cell 3 is placed at the preset position of the second hot press plate 20, the fourth driver is operated to move toward the battery cell 3, and a preset distance is kept from the battery cell 3. Based on consideration of a placement position error, a machining error, and the like of the battery cell 3, the distance between the fourth heating member 60 and the fourth side surface of the battery cell 3 is 1-2 mm. In the embodiment of the present invention, the distance between the fourth heating member 60 and the fourth side surface of the electric core 3 is ensured by controlling the movement stroke of the fourth driver. Of course, a person skilled in the art may also provide a position detection device to detect the position of the fourth heating element 60 so as to determine the distance between the fourth heating element 60 and the fourth side surface of the electric core 3.
Further, in order to ensure that the fourth heating element 60 keeps moving linearly during the moving process without tilting, a guiding mechanism may be disposed between the upper surface of the second hot press plate 20 and the fourth heating element 60, for example, a guiding groove is disposed on the upper surface of the second hot press plate 20, and the fourth heating element 60 is provided with a guiding rail accommodated in the guiding groove, so that the fourth heating element 60 can move toward the electric core 3 or away from the electric core 3 along the guiding groove.
In order to avoid the tab 31 provided on the electric core 3, the fourth heating plate is provided with a first tab avoiding opening 61 and a second tab avoiding opening 62. Further, the width of the first pole lug avoiding opening 61 is 8mm larger than that of the pole lug of the battery cell, and the width of the second pole lug avoiding opening 62 is 8mm larger than that of the pole lug of the battery cell, so that the pole lugs are prevented from being damaged by collision.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description above, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a electricity core hot press unit which characterized in that includes: a first hot-pressing assembly, a second hot-pressing assembly, a first heating member, a second heating member, a third heating member, and a fourth heating member;
the first hot-pressing assembly comprises a first hot-pressing plate parallel to a first surface of the battery cell, and the first hot-pressing plate is used for abutting against the first surface;
the second hot-pressing assembly comprises a second hot-pressing plate parallel to the second surface of the battery cell, and the second hot-pressing plate is used for abutting against the second surface;
the first heating element is located on a first side surface of the battery cell, the second heating element is located on a second side surface of the battery cell, the third heating element is located on a third side surface of the battery cell, and the fourth heating element is located on a fourth side surface of the battery cell;
the first hot pressboard, the second hot pressboard first heating member the second heating member third heating member and the fourth heating member form and hold the accommodation space of electric core.
2. The cell hot pressing apparatus according to claim 1, wherein the first heating member includes a first heating plate and a first resistor disposed in the first heating plate, and the first heating plate is perpendicular to the first hot pressing plate.
3. The cell hot pressing apparatus according to claim 1, wherein the second heating member includes a second heating plate and a second resistor disposed in the second heating plate, and the second heating plate is perpendicular to the first hot pressing plate.
4. The cell hot pressing apparatus according to claim 1, wherein the third heating member includes a third heating plate and a third resistor disposed in the third heating plate, and the third heating plate is perpendicular to the first hot pressing plate.
5. The cell hot pressing apparatus according to claim 1, wherein the fourth heating member includes a fourth heating plate and a fourth resistor disposed in the fourth heating plate, and the fourth heating plate is perpendicular to the first hot pressing plate.
6. The cell hot pressing apparatus according to claim 5, wherein the fourth heating plate is provided with a first tab avoiding opening and a second tab avoiding opening.
7. The cell hot-pressing device according to claim 6, wherein the width of the first tab avoidance opening is 8mm greater than the width of the tab of the cell;
the width of the second lug avoiding opening is 8mm larger than that of the lug of the battery cell.
8. The cell hot-pressing device according to any one of claims 1 to 7, further comprising a first driver connected to the first heating member, a second driver connected to the second heating member, a third driver connected to the third heating member, and a fourth driver connected to the fourth heating member;
the first driver can drive the first heating member to move towards or away from the battery core, the second driver can drive the second heating member to move towards or away from the battery core, the third driver can drive the third heating member to move towards or away from the battery core, and the fourth driver can drive the fourth heating member to move towards or away from the battery core.
9. The cell core hot-pressing device according to any one of claims 1 to 7, wherein the distance between the first heating member and the first side surface of the cell core is 1 to 2 mm;
the distance between the second heating element and the second side surface of the battery core is 1-2 mm;
the distance between the third heating element and the third side surface of the battery core is 1-2 mm;
the distance between the fourth heating element and the fourth side face of the battery core is 1-2 mm.
10. The cell core hot-pressing apparatus of any one of claims 1 to 7, wherein the first hot-pressing assembly further comprises a first pressing apparatus connected to the first hot-pressing plate.
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