CN218394433U - Gluing device and battery production equipment - Google Patents
Gluing device and battery production equipment Download PDFInfo
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- CN218394433U CN218394433U CN202221628467.7U CN202221628467U CN218394433U CN 218394433 U CN218394433 U CN 218394433U CN 202221628467 U CN202221628467 U CN 202221628467U CN 218394433 U CN218394433 U CN 218394433U
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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
Abstract
The application relates to a gluing device and battery production equipment. The gluing device comprises a gluing pipeline and a heating mechanism; the gluing pipeline is used for gluing a piece to be glued; the heating mechanism is used for heating the gluing pipeline so as to improve the temperature of glue at the outlet of the gluing pipeline. The rubber coating device in this application is through setting up heating mechanism to improve the gluey temperature in rubber coating pipeline exit, thereby the calorific loss that the compensation was glued through the rubber coating pipeline reduces the gluey viscosity in rubber coating pipeline exit, prevents to glue and takes place the wire drawing phenomenon after the point, avoids to a certain extent to wait to glue the piece and explodes the point because of the foreign matter production, is applied to the battery with it, can reduce the condemned risk of battery monomer.
Description
Technical Field
The application relates to the technical field of energy storage devices, in particular to a gluing device and battery production equipment.
Background
The battery cell is widely used in electronic devices such as a mobile phone, a notebook computer, a battery car, an electric airplane, an electric ship, an electric toy car, an electric toy ship, an electric toy airplane, an electric tool, and the like. The battery monomer can comprise a cadmium-nickel battery monomer, a hydrogen-nickel battery monomer, a lithium ion battery monomer, a secondary alkaline zinc-manganese battery monomer and the like.
In the production and processing process of the battery monomer, the battery monomer is easy to be polluted and scrapped.
SUMMERY OF THE UTILITY MODEL
The application provides a rubber coating device and battery production facility aims at reducing battery monomer and receives the pollution to prevent taking place to scrap.
In a first aspect, the present application provides a gluing device that includes a gluing conduit and a heating mechanism. The gluing pipeline is used for gluing the piece to be glued. The heating mechanism is used for heating the gluing pipeline so as to improve the temperature of glue at the outlet of the gluing pipeline.
The rubber coating device in this application is through setting up heating mechanism to improve the gluey temperature in rubber coating pipeline exit, thereby the compensation passes through the calorific loss that the rubber coating pipeline glued, reduces the gluey viscosity in rubber coating pipeline exit, prevents to a certain extent and takes place the wire drawing phenomenon after the point is glued, avoids treating to glue the piece and explodes the point because of the foreign matter production, reduces the condemned risk of battery monomer. In addition, through heating rubber coating pipeline, can prevent to glue and be heated for a long time, effectively reduce to glue the risk that takes place the carbonization, can also effectively reduce to glue the risk that takes place the carbonization and block up the rubber coating pipeline to reduce the maintenance cost of device. Meanwhile, the glue at the outlet of the glue pipeline can have good adhesion, the risk of glue failure after glue dispensing is reduced, and the reliability of glue dispensing is improved.
According to one embodiment of the application, the heating means are arranged outside the glue application conduit.
In these alternative embodiments, the heating means are arranged on the outside of the glue application conduit, which is easy to control and install and easy to replace, compared to being installed on the inside of the glue application conduit.
According to one embodiment of the application, the heating mechanism comprises a heating element which is coated on at least part of the outer surface of the glue application conduit.
In these alternative embodiments, the heating element covers at least part of the outer surface of the gluing pipe, which can suitably reduce the time of the glue under high temperature conditions, thereby reducing the risk of the glue carbonizing and blocking the gluing pipe under high temperature conditions for a long time.
According to one embodiment of the application, the area of the outer surface of the glue conduit is S 1 The area of the outer surface of the glue application conduit covered by the heating element is S 2 ，S 2 ≥1/5S 1 。
In these alternative embodiments, the heating element needs to have an area of the outer surface to cover part of the outer surface of the glue line, so that the glue in the glue line can be heated uniformly.
According to one embodiment of the application, the heating element is arranged at one end of the glue line close to the element to be glued.
In these optional embodiments, the heating member is arranged at one end of the gluing pipeline close to the member to be glued, so that the glue at the outlet of the heating gluing pipeline can be directly heated, and the heating efficiency is improved.
According to one embodiment of the present application, the heating element is selected from a resistance heating sheet or a ceramic heating sheet.
In the alternative embodiments, the specific alternative heating elements can provide good heating performance, and the complexity of the device structure is reduced to some extent, and the manufacturing process is simplified
According to an embodiment of the application, the heating mechanism further comprises a temperature controller. The temperature controller is electrically connected to the heating member for adjusting the heating temperature of the heating member.
In these optional embodiments, temperature controller's setting does benefit to the heating temperature of accurate regulation heating member, and can optimize the heating temperature of heating member according to the viscosity of different kinds of glue, effectively prevents to take place the wire drawing phenomenon.
According to an embodiment of the application, the gluing device further comprises a glue gun. Glue the rifle and be equipped with the holding chamber that is used for holding gluey, the rubber coating pipe connection in glue the rifle and with holding chamber intercommunication.
In these optional embodiments, through the setting of heating mechanism, the heat loss of compensation gluing through the rubber coating pipeline reduces the glue of rubber coating pipeline exit and holds the temperature difference between the intracavity and glue, effectively prevents to glue the wire drawing phenomenon to appear.
According to an embodiment of the application, the heating mechanism is configured to heat the glue conduit so as to bring the temperature T of the glue at the outlet of the glue conduit 1 Temperature T of glue in accommodating cavity 2 Satisfies the following conditions: t is 2 -T 1 ＜50℃。
In these alternative embodiments, the temperature T of the glue at the outlet of the gluing duct is brought about by heating means 1 Gradually approaches the temperature T of the glue in the accommodating cavity 2 The difference between the two is reduced, and the glue is ensured to be in a stable environment in the whole gluing device, so that the gluing effect is ensured.
According to one embodiment of the application, the gluing device further comprises an insulating layer. The heat preservation sets up in the surface that the heating member deviates from the rubber coating pipeline.
In these alternative embodiments, the insulating layer serves to insulate the heating member to effectively prevent heat radiation loss from the heating member, thereby improving heating efficiency.
According to one embodiment of the present application, the area S of the outer surface of the insulation layer 3 Area S of the outer surface of the heating member 4 Satisfies the following conditions: s 3 ≥S 4 。
In these alternative embodiments, the area S of the outer surface of the insulation layer 3 Greater than or equal to the area S of the outer surface of the heating member 4 The heat radiation loss can be effectively prevented, and the heating efficiency is further improved. In the heat preservationArea S of the outer surface of the layer 3 Is larger than the area S of the outer surface of the heating member 4 Under the condition, the heat preservation not only can realize keeping warm to the heating member, can also realize keeping warm to the glue in the rubber coating pipeline, reaches multiple heat retaining effect.
According to one embodiment of the application, the insulating layer and the heating element are of an integral structure.
In these alternative embodiments, the insulating layer and the heating element are designed as an integral structure, which is convenient for installation and use.
According to an embodiment of the application, the glue spreading device further comprises a glue nozzle. The glue nozzle is connected to one end, close to the piece to be glued, of the gluing pipeline.
In the alternative embodiments, the glue with the increased temperature is coated on the piece to be coated with the glue through the glue nozzle, and the glue nozzle can also adjust the spraying angle and the spraying area of the glue so as to adapt to different coating requirements.
According to one embodiment of the application, the inner diameter of the glue nozzle decreases from the glue line towards the piece to be glued.
In these optional embodiments, because the inner diameter of the glue nozzle gradually decreases from the gluing pipeline to the piece to be glued, the glue nozzle is of a gradually-changing inner diameter structure, the inner diameter of one end close to the gluing pipeline is large, the inner diameter of the other end close to the piece to be glued is small, a larger glue amount passes through a smaller accommodating space, the gluing speed tends to increase, and the occurrence of a wire drawing phenomenon is reduced.
According to one embodiment of the application, the length of the glue application pipe in the glue spraying direction is 5 cm-20 cm.
In the optional embodiments, the glue coating pipeline has enough length, the size of the glue coating pipeline protruding out of the glue gun is greater than or equal to 5cm, and the size of the part of the glue coating pipeline protruding out of the glue gun is larger, so that the glue gun is effectively prevented from scratching or scratching the surface of the end cover substrate; on the other hand, the size of the glue coating pipe protruding out of the glue gun is smaller than or equal to 20cm, and the situation that the part of the glue coating pipe protruding out of the glue gun is too large in size and cannot be well supported in the glue coating process of the glue coating pipe is avoided.
In a second aspect, the application provides a battery production facility, including according to aforementioned rubber coating device, the rubber coating device is used for the rubber coating at the free end cover of battery and the splice welding department of keysets.
Drawings
Features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a glue spreading device according to some embodiments of the present application;
FIG. 2 is a schematic structural diagram of a glue spreading device according to another embodiment of the present application;
fig. 3 is a schematic structural diagram of a glue spreading device according to still other embodiments of the present application;
FIG. 4 is a schematic cross-sectional view of the glue applicator of FIG. 3 at a-a;
FIG. 5 is a schematic view of an insulation layer of a gluing device according to still other embodiments of the present disclosure;
fig. 6 is a schematic structural diagram of an end cap and an interposer of a battery production device according to some embodiments of the present disclosure.
The drawings are not necessarily to scale.
Description of reference numerals:
100. a gluing device; 200. an end cap; 300. a patch;
10. gluing a pipeline;
20. a heating mechanism; 21. a heating member; 22. a heating element;
30. a glue gun;
40. a heat-insulating layer;
50. and (4) a rubber nozzle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof in the description and claims of this application and the description of the figures above, are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different elements and not for describing a particular sequential or chronological order.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "attached" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The term "and/or" in this application is only one kind of association relationship describing the associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this application generally indicates that the preceding and following associated objects are in an "or" relationship.
In the embodiments of the present application, like reference numerals denote like parts, and a detailed description of the same parts is omitted in different embodiments for the sake of brevity. It should be understood that the thickness, length, width and other dimensions of the various components in the embodiments of the present application and the overall thickness, length, width and other dimensions of the integrated device shown in the drawings are only exemplary and should not constitute any limitation to the present application.
The appearances of "a plurality" in this application are intended to mean more than two (including two).
Currently, with the increasing environmental and renewable requirements, there is an increasing interest in batteries and their combinations in the energy field. Among them, the common battery cell is a lithium ion battery cell, a lithium sulfur battery cell, a sodium ion battery cell, or a magnesium ion battery cell, but is not limited thereto. Although batteries are various in variety, the demand for batteries in the market is still large due to production efficiency. Therefore, it is necessary to improve the battery production process and improve the battery production efficiency. In the production process of the battery, the connection between the end cover and the adapter plate in the battery cell generally adopts laser welding equipment to realize laser welding. After laser welding, in order to prevent welding slag generated from falling into the battery core, adverse effects are generated, the common laser welding equipment needs to be provided with a negative pressure dust removal mechanism, and in addition, the common laser welding equipment is also provided with a gluing device so as to carry out glue dispensing sealing treatment on the welded end cover welding position.
The inventor finds that in the actual production process, the temperature (usually about 180 ℃) of glue in a molten state in a containing cavity of a gluing device is higher than the temperature (usually about 130 ℃) of glue in a molten state at an outlet of a gluing pipeline, the difference between the two temperatures is about 50 ℃, the viscosity of the glue is increased due to the reduction of the temperature, and the glue generates a wire drawing phenomenon in the gluing process, so that the end cover welding generates a crack point due to foreign matters, and a single battery is scrapped. Wherein, the drawing refers to that after the gluing is finished, the glue is formed into a filamentous structure due to the viscosity increase caused by the lower glue temperature. The wire-like structure may move with the movement of the glue conduit, affecting other components.
The inventor tries to adopt and wraps up thermal-insulated insulation material in the rubber coating pipeline outside, plays the heat preservation effect to the rubber coating pipeline, reduces the heat loss of holding chamber to rubber coating pipeline exit, avoids the adhesive viscosity increase of the molten condition in rubber coating pipeline exit, can suitably reduce the hot melt adhesive wire drawing phenomenon, reduces the pollution of end cover to a certain extent. In addition, the temperature of the hot melt adhesive in the accommodating cavity is increased, so that the temperature of the adhesive in a molten state at the outlet of the gluing pipeline is increased, the viscosity of the adhesive in a molten state at the outlet of the gluing pipeline is reduced, and the phenomenon of hot melt adhesive wire drawing can be reduced. However, the two means have defects, the first means has limited heat preservation effect and cannot thoroughly solve the problem of temperature difference between the accommodating cavity and the outlet of the gluing pipeline; the second means is that although the temperature of glue at the outlet of the gluing pipeline is increased, the glue in the accommodating cavity is too high in temperature, so that the glue is easily carbonized, and the performance of the glue is affected.
In view of above problem, the inventor has provided a rubber coating device including heating mechanism through deep research, and heating mechanism can improve the gluey temperature in rubber coating pipeline exit to the heat loss of gluing through the rubber coating pipeline is compensated, reduces the gluey viscosity in rubber coating pipeline exit, prevents to some extent to take place the wire drawing phenomenon after gluing, avoids waiting to glue the piece and produces the explosion point because of the foreign matter, makes the condemned risk of battery monomer.
Fig. 1 is a schematic structural diagram of a gluing device provided in some embodiments of the present application in fig. 1.
As shown in fig. 1, a glue application apparatus 100 of the present application includes a glue application pipe 10 and a heating mechanism 20. The glue line 10 is used to apply glue to the piece to be glued. The heating means 20 are intended to heat the glue line 10 in order to increase the temperature of the glue at the outlet of the glue line 10.
The glue line 10 is a glue line 10 of the gluing device 100, which can be mounted on a glue gun 30 of the gluing device 100. The shape and length of the glue conduit 10 may be different depending on the actual glue application scenario. The cross-sectional shape of the glue spreading pipe 10 may be any shape, for example, a circle, a square, an ellipse, etc., as long as it is sufficient that the glue can flow out from the glue spreading pipe 10, and the shape of the glue spreading pipe 10 is not limited herein.
Alternatively, the glue line 10 comprises a straight cylindrical glue line or an elbow shaped glue line.
In some embodiments of the present application, the number of glue conduits 10 is multiple, each glue conduit 10 being provided with 1 outlet. A plurality of glue lines 10 may be provided at intervals or close to each other. The flow rate of glue at the outlet of each glue application conduit 10 is substantially the same. Therefore, the flow of glue can be controlled, and the other glue applying pipelines 10 can be prevented from being normally used after one glue applying pipeline 10 is blocked.
In other embodiments of the present application, the glue line 10 comprises a plurality of glue pathways and outlets, the glue pathways and outlets being arranged in a one-to-one correspondence, each glue pathway being arranged independently. Therefore, the flow of the glue can be controlled, and other glue passages can be prevented from being normally used after one glue passage is blocked.
The heating action of the heating means 20 causes at least the glue in the molten state at the outlet of the gluing duct 10 to increase in temperature. The heating means 20 may be located inside the gluing duct 10, and may heat the glue directly, or may heat the gluing duct 10 and transfer the heat energy to the glue, so that the glue temperature at the outlet of the gluing duct 10 increases. The heating means 20 may also be located outside the glue line 10, in which case the heating means 20 heats the glue line 10, transferring heat energy to the glue through the glue line 10, so that the glue temperature at the outlet of the glue line 10 increases.
According to one embodiment of the application, the heating means 20 are arranged outside the glue line 10.
In these alternative embodiments, the heating means 20 are arranged outside the glue line 10, the heating means 20 being easier to install and easier to replace than inside the glue line 10. And the heating mechanism 20 is arranged outside the gluing pipe 10, so that the influence of the special-shaped structure (such as a bent head shape, a thread shape, a wave shape and the like) of the gluing pipe 10 is avoided, and the heating mechanism 20 matched with the gluing pipe 10 with different structures is not required to be arranged, so that the universality of the heating mechanism 20 is improved. In addition, the inner space of the glue spreading pipeline 10 is narrow, and the heating mechanism 20 is installed inside the glue spreading pipeline 10 with high difficulty.
Referring to fig. 2 in combination, fig. 2 is a schematic structural diagram of a glue applying apparatus 100 according to another embodiment of the present application.
According to one embodiment of the application, as shown in fig. 1 and 2, the heating means 20 comprise heating elements 21, which heating elements 21 coat at least part of the outer surface of the glue line 10.
In the embodiment of the present application, the heating member 21 may completely cover the outer surface of the gluing pipe 10, so as to achieve a better heating effect and increase the temperature of the glue at the outlet of the gluing pipe 10. The outer surface of the glue coating pipeline 10 can be partially wrapped, so that the heating effect is achieved, the use of materials is saved and the cost is reduced under the condition that wire drawing is prevented after glue dispensing.
In the embodiment of the present application, the heating member 21 may be closely attached to the outer surface of the glue line 10. The heating elements 21 may also be a clearance fit with the outer surface of the glue line 10.
In these alternative embodiments, the heating element 21 covers at least part of the outer surface of the gluing pipe 10, which can suitably reduce the time of the glue under high temperature conditions, thereby reducing the risk of the glue clogging the gluing pipe 10 due to carbonization of the glue under high temperature conditions for a long time.
According to one embodiment of the application, the outer surface of the glue conduit 10 has an area S 1 The area of the region of the outer surface of the glue line 10 covered by the heating element 21 is S 2 ，S 2 ≥1/5S 1 。
In the embodiment of the present application, the outer surface of the glue conduit 10 has an area S 1 The area of the region of the outer surface of the glue application pipe 10 covered by the heating member 21 is S 2 Satisfies 1/5S 1 ≤S 2 ≤1/4S 1 、1/4S 1 ≤S 2 ≤2/5S 1 、2/5S 1 ≤S 2 ≤1/2S 1 、1/2S 1 ≤S 2 ≤3/5S 1 、3/5S 1 ≤S 2 ≤4/5S 1 、4/5S 1 ≤S 2 ≤S 1 Or other ranges consisting of any two of the endpoints recited above.
Optionally, the outer surface of the glue conduit 10 has an area S 1 The area of the region of the outer surface of the glue line 10 covered by the heating member 21 is S 2 Satisfies 1/4S 1 ≤S 2 ≤3/5S 1 More optionally 2/5S 1 ≤S 2 ≤1/2S 1 。
In these alternative embodiments, the heating member 21 needs to have a certain area of the outer surface to cover a part of the outer surface of the glue pipe 10, so that the glue in the glue pipe 10 can be heated uniformly. If the area of the heating element 21 covering the outer surface of the glue line 10 is too small, so that the glue in the glue line 10 is heated unevenly, the total heat loss of the glue through the glue line 10 cannot be compensated, and the viscosity of the glue at the outlet of the glue line 10 is still low. Moreover, if the heating temperature of the heating member 21 is increased singly, the local temperature of the heating member 21 is too high, so that the temperature of the glue flowing through the heating member is too high, the molecular chain of the glue is decomposed and carbonized, and the risk of blocking the gluing pipe 10 exists. If the area of the heating member 21 covering the outer surface of the glue applying pipe 10 is too large, the glue of the glue applying pipe 10 is in a high temperature condition for a long time, the probability of carbonization is increased, and the blockage of the glue applying pipe 10 is easily caused. Therefore, the proper area of the outer surface of the heating member 21 can effectively increase the temperature of the glue at the outlet of the gluing pipeline 10 and reduce the energy effect.
According to one embodiment of the application, as shown in fig. 1, a heating element 21 is arranged at one end of the glue line 10 close to the element to be glued.
In some embodiments of the present application, the heating element 21 is of unitary construction and is arranged near one end of the element to be glued, so as to heat the glue at the outlet of the gluing duct 10 more directly.
In other embodiments of the application, the heating element 21 comprises a plurality of sub-heating elements, which are arranged at intervals along the glue line 10, and at least one sub-heating element is arranged at an end of the glue line 10 close to the element to be glued. By the arrangement, on one hand, the glue at the outlet of the heating gluing pipeline 10 can be directly heated, and the heating efficiency is improved; on the other hand, sectional type heating can be so that glue is heated evenly, avoids appearing local high temperature and influences gluey performance.
In these alternative embodiments, the heating element 21 is arranged at an end of the gluing pipe 10 close to the element to be glued, so that the glue at the outlet of the gluing pipe 10 can be directly heated, and the heating efficiency can be improved.
According to one embodiment of the present application, the heating member 21 is selected from a resistance heating sheet or a ceramic heating sheet.
In some embodiments of the present application, the heating element 21 is a resistive heating blade which electrically heats the glue conduit 10 with thermal energy generated by joule effect of the current flowing through the conductor. The current passes through the resistance heating sheet, so that the resistance heating sheet generates heat, then the heat generated by the resistance heating sheet is utilized to heat the gluing pipeline 10 in the modes of heat conduction, heat convection, heat radiation and the like, and the gluing pipeline 10 improves the glue temperature in the mode of heat conduction. The resistance heating sheet has the advantages of uniform heating, high thermal efficiency and the like.
In other embodiments of the present application, the heating member 21 is a ceramic heating sheet, and the heating sheet generates heat when the heating sheet is powered on, the generated heat mainly heats the glue applying pipe 10 in a heat conduction manner, and the glue applying pipe 10 increases the temperature of the glue in the heat conduction manner. The ceramic heating sheet has high heat efficiency, and the heating body is insulated from air and has the characteristics of acid and alkali resistance and other corrosive substances.
In these alternative embodiments, these specific examples of the optional heating member 21 can provide good heating performance, and to some extent, reduce the complexity of the device structure and simplify the manufacturing process.
According to an embodiment of the present application, as shown in fig. 2, the heating mechanism 20 further includes a temperature controller 22, and the temperature controller 22 is electrically connected to the heating member 21 for adjusting a heating temperature of the heating member 21.
In an embodiment of the present application, the temperature controller 22 includes a temperature sensor and a controller, the temperature sensor being electrically connected to the controller. The temperature sensor measures the temperature of the heating member 21. The controller has a function of receiving data and/or transmitting data, which can be used to display and/or control the heating temperature of the heating member 21. The controller can receive the signal of the temperature sensor, then transmit and/or calculate the received signal, then send the generated execution signal to the heating element 21 again, control the heating degree of the heating element 21, heat or cool the real-time temperature of the gluing pipeline 10, and dynamically adjust to keep the real-time temperature within a constant range of theoretical requirements.
In these alternative embodiments, the temperature controller 22 is provided to facilitate the precise adjustment of the heating temperature of the heating member 21, and the heating temperature of the heating member 21 can be optimized according to the viscosity of different kinds of glue, thereby effectively preventing the occurrence of the wire drawing phenomenon.
With combined reference to fig. 3 to 5, fig. 3 is a schematic structural diagram of a glue spreading device according to still other embodiments of the present application; FIG. 4 is a schematic cross-sectional view of the glue applicator of FIG. 3 at a-a; fig. 5 is a schematic structural diagram of an insulating layer of a gluing device according to still other embodiments of the present application.
According to an embodiment of the present application, as shown in fig. 3, the glue spreading device 100 further includes: glue the rifle 30, be equipped with the holding chamber that is used for holding gluey, the rubber coating pipeline 10 is connected in gluing rifle 30 and is communicate with the holding chamber.
In the embodiment of the application, the glue gun 30 is a hollow airtight structure, and a holding cavity is arranged inside the glue gun 30 and used for holding glue, and the holding cavity of the glue gun 30 and the glue applying pipeline 10 are used for transferring glue to the glue applying pipeline 10, so that the glue applying device 100 with a simple structure can shorten the glue discharging time and improve the glue applying efficiency. The glue gun 30 is filled with glue in a molten state in the containing cavity, and the glue is in the flowing process of the gluing pipeline 10, because the glue gun 30 is long in length, the heat loss of the glue in the gluing pipeline 10 is caused, the glue temperature at the outlet of the gluing pipeline 10 is reduced, the viscosity is increased, and the wire drawing phenomenon is caused. Furthermore, as the length of the glue line 10 increases, the more heat loss of the glue in the glue line 10, the more probability of the occurrence of stringing.
In these optional embodiments, through the setting of heating mechanism 20, compensate the heat loss of gluing through rubber coating pipeline 10, reduce the temperature difference between the gluey of rubber coating pipeline 10 exit and the intracavity of holding and glue, effectively prevent to glue the wire drawing phenomenon.
According to an embodiment of the application, the heating mechanism 20 is configured to heat the glue conduit 10 so as to bring the temperature T of the glue at the outlet of the glue conduit 10 1 Temperature T of glue in accommodating cavity 2 Satisfies the following conditions: t is 2 -T 1 ＜50℃。
For example, taking a length of 10cm of the glue line 10 and a glue temperature of 180 ℃ (glue melting point temperature) in the receiving chamber of the glue gun 30, the temperature of the glue flowing in the receiving chamber to the outlet of the glue line 10 is 130 ℃, which is different by about 50 ℃, i.e. the glue temperature is reduced by 50 ℃. The temperature of the glue at the outlet of the gluing pipeline 10 is increased by the heating mechanism 20, the difference between the glue in the accommodating cavity and the glue at the outlet of the gluing pipeline 10 is reduced, the difference between the glue in the accommodating cavity and the glue at the outlet of the gluing pipeline 10 is less than about 50 ℃, so that the temperature of the glue at the outlet of the gluing pipeline 10 is close to the temperature of the glue in the accommodating cavity, the temperature of the glue at the outlet of the gluing pipeline 10 is gradually increased, and the probability of wire drawing is gradually reduced.
Alternatively, 0 ℃ < T 2 -T 1 Is < 50 ℃. The increase of the temperature of the glue at the outlet of the gluing pipeline 10 can reduce the occurrence of wire drawing phenomenon caused by the glue during the glue dispensing process, but the excessive temperature can cause the glue to be carbonized, thereby affecting the reliability of the glue dispensing.
Optionally, the temperature T of the glue at the outlet of the gluing duct 10 1 Above the melting point of the glue.
In these alternative embodiments, the temperature T of the glue at the outlet of the gluing duct 10 is brought about by the heating means 20 1 Gradually approaches the temperature T of the glue in the accommodating cavity 2 Is reduced toThe difference between the two values ensures that the glue is in a stable environment in the whole glue spreading device 100, thereby ensuring the glue spreading effect.
According to an embodiment of the present application, as shown in fig. 3 and 4, the glue spreading device 100 further includes: and the heat insulation layer 40 is arranged on the surface of the heating element 21, which is far away from the gluing pipeline 10.
In the embodiment of this application, heat preservation 40 is used for keeping warm to heating member 21, and heat preservation 40 sets up the surface that deviates from rubber coating pipeline 10 at heating member 21, can all cladding at the surface of heating member 21 to reach better heat preservation effect. In addition, the heat-insulating layer 40 not only completely covers the outer surface of the heating member 21, but also covers the outer surface of the gluing pipeline 10 which is not covered by the heating member 21, so that heat insulation of the heating member 21 is realized, heat insulation of glue in the gluing pipeline 10 can also be realized, and multiple heat insulation effects are realized. And the heating element can be partially wrapped on the outer surface of the heating element 21, so that the use of materials is saved, and the cost is reduced.
In these alternative embodiments, the insulating layer 40 serves to insulate the heating member 21 to effectively prevent heat radiation loss from the heating member 21, thereby improving heating efficiency.
According to one embodiment of the present application, as shown in fig. 3 to 5, the area S of the outer surface of the insulation layer 40 3 Area S of the outer surface of the heating member 21 4 Satisfies the following conditions: s. the 3 ≥S 4 。
In these alternative embodiments, the area S of the outer surface of the insulation layer 40 3 Is equal to or larger than the area S of the outer surface of the heating member 21 4 The heat radiation loss can be effectively prevented, and the heating efficiency is further improved. And the area S of the outer surface of the heat insulating layer 40 3 Is larger than the area S of the outer surface of the heating member 21 4 Under the circumstances, heat preservation 40 not only can realize keeping warm to heating member 21, can also realize keeping warm to the glue in rubber coating pipeline 10, reaches multiple heat retaining effect.
According to one embodiment of the present application, the insulating layer 40 is of unitary construction with the heating element 21.
In these alternative embodiments, the insulating layer 40 is designed as a unitary structure with the heating element 21 for ease of installation and use.
According to an embodiment of the present application, as shown in fig. 3 and 5, the glue spreading device 100 further includes: the glue nozzle 50 is connected to one end of the gluing duct 10 close to the piece to be glued.
Alternatively, the glue nozzle 50 fits closely to the outlet of the glue conduit 10,
in these alternative embodiments, the glue with the increased temperature is applied to the member to be glued through the glue nozzle 50, and the glue nozzle 50 can also adjust the spraying angle and the spraying area of the glue so as to adapt to different gluing requirements.
According to one embodiment of the application, the inner diameter of the nozzle 50 decreases from the glue duct 10 towards the piece to be glued.
In these alternative embodiments, since the inner diameter of the glue nozzle 50 gradually decreases from the gluing pipe 10 to the member to be glued, the glue nozzle 50 has a gradually changing inner diameter structure, the inner diameter of one end close to the gluing pipe 10 is large, and the inner diameter of the other end close to the member to be glued is small, so that a larger glue amount passes through a smaller accommodating space, the gluing speed tends to increase, and the occurrence of a wire drawing phenomenon is reduced.
According to one embodiment of the application, the length of the glue line 10 in the direction of glue application is 5-20 cm.
Optionally, the length of the glue applying pipe 10 along the glue spraying direction is 10cm to 15cm.
In these alternative embodiments, the glue application pipe 10 has a sufficient length, the size of the glue application pipe 10 protruding out of the glue gun 30 is greater than or equal to 5cm, and the size of the part of the glue application pipe 10 protruding out of the glue gun 30 is larger, so as to effectively prevent the glue gun 30 from scratching or scratching the surface of the end cover substrate; on the other hand, the size of the glue spreading pipe 10 protruding from the glue gun 30 is less than or equal to 20cm, so that the problem that the glue spreading pipe 10 cannot be well supported in the glue spreading process due to the fact that the size of the part of the glue spreading pipe 10 protruding from the glue gun 30 is too large is avoided.
Referring to fig. 6, fig. 6 is a schematic structural view of an end cap and an interposer of a battery production apparatus according to some embodiments of the present disclosure.
In a second aspect, as shown in fig. 6, the present application provides a battery production apparatus, which includes a glue applying device 100, where the glue applying device 100 is used to apply glue to the welding position of the end cap 200 and the interposer 300 of the battery cell.
The end cap 200 refers to a member that covers an opening of a case of the battery cell to insulate an internal environment of the battery cell from an external environment. Without limitation, the shape of the end cap 200 may be adapted to the shape of the housing to fit the housing. Alternatively, the end cap 200 may be made of a material (e.g., an aluminum alloy) having certain hardness and strength, so that the end cap 200 is not easily deformed when being extruded and collided, and thus the single battery 10 may have higher structural strength and improved safety performance. The material of the end cap 200 may also be various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which is not limited in this embodiment.
The interposer 300 piece is used to electrically connect the electrode assembly to the electrode lead-outs on the end cap 200.
The gluing device 100 is applied to a battery production device to glue the welding position of the end cover 200 and the adapter plate 300 of the single battery. Through setting up heating mechanism 20 in the rubber coating device 100 to improve the gluey temperature in rubber coating pipeline 10 exit, thereby compensate the calorific loss who glues through rubber coating pipeline 10, reduce the gluey viscosity in rubber coating pipeline 10 exit, prevent to some extent and take place the wire drawing phenomenon after the point is glued, avoid end cover 200 to produce the point of explosion because of the foreign matter, reduce the condemned risk of battery monomer.
According to some embodiments of the present application, referring to fig. 2 and 3, the present application provides a glue spreading device 100 including a glue gun 30, a glue spreading duct 10, a glue nozzle 50, a heating mechanism 20, and an insulation layer 40. The glue gun 30 is provided with a containing cavity for containing glue, and the glue coating pipeline 10 is connected to the glue gun 30 and communicated with the containing cavity. The glue nozzle 50 is connected to an end of the glue line 10 close to the piece to be glued, and the inner diameter of the glue nozzle 50 decreases from the glue line 10 towards the piece to be glued. The length of the glue application pipe 10 in the glue spraying direction is 10cm. The heating mechanism 20 includes a heating member 21 and a temperature controller 22. The heating member 21 is a resistance heating sheet and is coated on the outer surface of the glue applying pipe 10. The temperature controller 22 is electrically connected to the resistance heating sheet and controls the heating temperature of the resistance heating sheet so that the temperature of the glue at the outlet of the gluing pipeline 10 is 180 ℃ and is equal to the temperature of the glue in the accommodating cavity of 180 ℃. Compared with the existing dispensing equipment (not including the heating mechanism 20), the dispensing wire drawing of the glue spreading device 100 is reduced from 2% to 0.3%, and the wire drawing phenomenon is obviously improved. Glue spreading device 100 in this application is through setting up heating mechanism 20 to improve the gluey temperature in rubber coating pipeline 10 exit, thereby the compensation passes through the thermal loss that rubber coating pipeline 10 was glued, reduces the gluey viscosity in rubber coating pipeline 10 exit, prevents to a certain extent that the point takes place the wire drawing phenomenon after the point is glued, avoids treating to glue the piece and explodes the point because of the foreign matter production, makes the condemned risk of battery monomer. In addition, through heating rubber coating pipeline 10, can prevent to glue and be heated for a long time, effectively reduce to glue the risk that takes place the carbonization, can also effectively reduce to glue the risk that takes place the carbonization and block up rubber coating pipeline 10 to reduce the maintenance cost of device. Meanwhile, the glue at the outlet of the glue pipeline can be enabled to have good adhesion, the risk of glue failure after glue dispensing is reduced, and the reliability of glue dispensing is improved.
While the present application has been described with reference to preferred embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the present application, and in particular, features shown in the various embodiments may be combined in any manner as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.
Claims (16)
1. A gluing device, characterized in that it comprises:
the gluing pipeline is used for gluing a piece to be glued;
and the heating mechanism is used for heating the gluing pipeline so as to improve the temperature of glue at the outlet of the gluing pipeline.
2. Gluing device according to claim 1,
the heating mechanism is arranged on the outer side of the gluing pipeline.
3. Gluing device according to claim 1,
the heating mechanism comprises a heating element, and the heating element is coated on at least part of the outer surface of the gluing pipeline.
4. Gluing device according to claim 3,
the area of the outer surface of the gluing pipeline is S 1 The area of the outer surface of the glue application pipe covered by the heating element is S 2 ，S 2 ≥1/5S 1 。
5. Gluing device according to claim 3,
the heating member set up in the rubber coating pipeline is close to the one end of treating the rubber coating piece.
6. Gluing device according to claim 3,
the heating member is selected from a resistance heating sheet or a ceramic heating sheet.
7. The gluing device according to claim 3, characterized in that said heating means further comprise:
and the temperature controller is electrically connected with the heating element and is used for adjusting the heating temperature of the heating element.
8. Gluing device according to claim 1, characterised in that it further comprises:
glue the rifle, be equipped with the holding chamber that is used for holding gluey, the rubber coating pipe connection in glue the rifle and with holding chamber intercommunication.
9. Gluing device according to claim 8,
the heating mechanism is configured to heat the glue application conduit,so that the temperature T of the glue at the outlet of said gluing duct 1 Temperature T of the glue in the containing cavity 2 Satisfies the following conditions:
T 2 -T 1 ＜50℃。
10. gluing device according to claim 3, characterised in that it further comprises:
and the heat preservation layer is arranged on the surface of the heating element deviating from the gluing pipeline.
11. Gluing device according to claim 10,
area S of the outer surface of the heat-insulating layer 3 And the area S of the outer surface of the heating member 4 Satisfies the following conditions: s 3 ≥S 4 。
12. Gluing device according to claim 10,
the heat preservation layer and the heating element are of an integrated structure.
13. Gluing device according to claim 1, characterised in that it further comprises:
and the glue nozzle is connected to one end, close to the piece to be glued, of the gluing pipeline.
14. Gluing device according to claim 13,
the inner diameter of the glue nozzle is gradually reduced from the gluing pipeline to the part to be glued.
15. Gluing device according to claim 1,
the length of the glue coating pipeline along the glue spraying direction is 5 cm-20 cm.
16. A battery production apparatus, characterized by comprising the gluing device of any one of claims 1 to 15, wherein the gluing device is used for gluing the welding positions of the end cover and the adapter plate of the battery cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221628467.7U CN218394433U (en) | 2022-06-27 | 2022-06-27 | Gluing device and battery production equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221628467.7U CN218394433U (en) | 2022-06-27 | 2022-06-27 | Gluing device and battery production equipment |
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| CN218394433U true CN218394433U (en) | 2023-01-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117594858A (en) * | 2024-01-17 | 2024-02-23 | 深圳市铭镭激光设备有限公司 | Automatic assembly production line and assembly method for energy storage battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117594858A (en) * | 2024-01-17 | 2024-02-23 | 深圳市铭镭激光设备有限公司 | Automatic assembly production line and assembly method for energy storage battery |
| CN117594858B (en) * | 2024-01-17 | 2024-04-19 | 深圳市铭镭激光设备有限公司 | Automatic assembly production line and assembly method for energy storage battery |
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