CN111509329B - Battery module and gluing equipment and process thereof - Google Patents
Battery module and gluing equipment and process thereof Download PDFInfo
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- CN111509329B CN111509329B CN202010347012.7A CN202010347012A CN111509329B CN 111509329 B CN111509329 B CN 111509329B CN 202010347012 A CN202010347012 A CN 202010347012A CN 111509329 B CN111509329 B CN 111509329B
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- module
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- gluing
- battery
- module body
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1005—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material already applied to the surface, e.g. coating thickness, weight or pattern
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1015—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target
- B05C11/1021—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target responsive to presence or shape of target
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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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
Abstract
A battery module comprises a module body, and a high-elasticity heat conduction material layer is coated on the external heat transfer surface of the module body. The gluing process comprises two modes of controlling an electromagnetic valve and controlling a stepping motor, wherein the electromagnetic valve is controlled by adjusting the opening degree of a valve to control the extrusion speed of the glue; the step motor is controlled by controlling the moving speed of the glue coating head to control the extruding speed of the glue; the gluing equipment comprises a detection system, a glue outlet system, a constant temperature system and a computer terminal; the glue outlet system comprises a glue extruding device and a movement mechanism for controlling the extruding device; the extrusion device comprises an electromagnetic valve, and the electromagnetic valve is used for receiving a signal of a computer terminal and adjusting the opening of the valve; the movement mechanism is controlled by a stepping motor, and the stepping motor receives signals of the computer terminal so as to control the movement speed of the movement mechanism. The production efficiency is higher than that of pasting the heat conducting pad, the process cost is lower, and bubbles are prevented from appearing on the matching surface.
Description
Technical Field
The invention relates to the field of battery modules, in particular to a battery module and gluing equipment and a gluing process thereof.
Background
During the charging and discharging processes of the battery pack, the battery module generates heat; particularly in summer, for the liquid-cooled battery pack, the heat generated by the battery module is mainly dissipated and taken away through the cooling plate; to the natural cooling battery package, the heat that the battery module produced loses and mainly conducts the battery box through heat conduction structure, is diffused to the atmospheric environment by the battery box again. The battery module is formed by a plurality of electricity core side by side, because the module is the in-process in groups, has position tolerance between the electricity core, leads to module bottom unevenness, directly installs the battery package with the battery module, can influence the heat transfer, leads to the battery temperature high, and the difference in temperature is big.
For a liquid-cooled battery pack, the matching between the heat dissipation surface of a battery module and a cooling plate is realized by adopting a mature technical scheme that gaps and tolerances are often filled by adopting a heat conduction pad to realize effective heat transfer between the module and the cooling plate, and the practice shows that the heat conduction pad is adopted between the heat dissipation surface of the battery module and the cooling plate, and the interface heat transfer coefficient can reach more than 1000W/m < 2 > 2K; if no thermal pad is used between the module and the cold plate, the interfacial heat transfer coefficient tends to be less than 600W/m 2K. For the natural cooling battery pack, a more mature technical scheme is that a heat conducting pad is often adopted to fill a gap between a module and a lower box body of the battery pack, so that effective heat transfer between a module radiating surface and the box body is realized.
For the liquid-cooled battery pack, the current stage design mode has the following three problems: 1) the heat conducting pad between the module and the liquid cooling plate has certain hardness and elasticity, and the heat conducting matching surface between the module and the liquid cooling plate can be ensured only by certain pressure, so that certain requirements are imposed on the mechanical strength of the module and the liquid cooling plate; 2) the hardness of the heat conducting pad is about shone 0055, so that the heat conducting pad is soft and easy to deform, and is difficult to automate in the process of packaging and assembling the battery; 3) the heat conduction pad is in the process of applying, forms uncertain air bubble that is difficult to discharge easily between module and heat conduction pad, liquid cooling board and heat conduction pad, influences heat transfer.
For the air-cooled battery pack, the current stage design has the following two problems: 1) the hardness of the heat conducting pad is about shone 0055, so that the heat conducting pad is soft and easy to deform, and is difficult to automate in the process of packaging and assembling the battery; 2) the heat conduction pad is in the process of applying, forms the air bubble that is difficult to the exhaust easily between module and heat conduction pad, box and heat conduction pad, influences heat transfer.
The battery module can also be applied to the energy storage electric cabinet except applying to the power battery pack, and the battery module is needed to be adopted as the standby power supply to supply power to the equipment, and the heat generated by the battery needs to be dissipated from the battery body.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a battery module and gluing equipment and a gluing process thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a battery module is provided, wherein a high-elasticity heat conduction material layer is coated on the external heat transfer surface of a module body.
The module body includes that the electric core that a plurality of electric cores constitute is arranged and module body curb plate, the coating of high elasticity heat conduction material layer is solidified on the side of the bottom or the module that the electric core was arranged.
The module body curb plate has the turn-ups towards electric core, and the electric core bottom exposes for main spreading surface the face outside, and the turn-ups of module body curb plate face is optional spreading surface, and highly be less than the height after the main spreading surface rubber coating after the optional spreading surface rubber coating.
The module body includes that the electric core that module bottom plate and a plurality of electric core constitute is arranged, the module bottom plate is located the bottom that the electric core was arranged, high elasticity heat conduction material layer coating and solidification are on the module bottom plate.
The module body can also be formed by adopting a soft-package battery cell; the module body comprises a battery cell arrangement formed by a plurality of battery cells, a module end plate and heat dissipation aluminum; the heat dissipation aluminum sheet is arranged between the battery cores and is of a T-shaped structure or an L-shaped structure, the transverse position of the heat dissipation aluminum sheet is the tail end of the heat dissipation aluminum sheet, the tail end of the heat dissipation aluminum sheet is arranged at the bottom of the battery cores or on the side face of the battery cores, and the high-elasticity heat conduction material layer is coated and cured at the tail end of the heat dissipation aluminum sheet or is coated on the surface of a module where the tail end of the heat dissipation aluminum sheet is located at the same time.
The high-elasticity heat conduction material layer is arranged in a strip mode, and an exhaust groove is formed between the strips.
The bottom on high-elasticity heat conduction material layer is equipped with from the type membrane, it does not receive the pollution to be used for protecting high-elasticity heat conduction material layer from the type membrane, when battery module installs service positions such as battery package, energy storage cabinet, remove from the type membrane.
When the battery pack is mounted, the release film is removed.
The high-elasticity heat conduction material layer is made of high-elasticity materials such as heat conduction gel, silica gel, rubber, latex and the like, and the heat conduction gel is a double-component preformed heat conduction silicone grease product; the silica gel, the rubber and the latex comprise high-elasticity materials such as silica gel, rubber or latex with heat-conducting additives; the present invention preferably employs a thermally conductive gel.
A gluing device for a battery module comprises a detection system, a glue storage system, a glue outlet system, a constant temperature system and a computer terminal;
the detection system comprises an early detection and a later detection, wherein the early detection is used for detecting the surface quality of the surface to be coated with glue and feeding back a detection result to the computer terminal; the later detection is used for detecting whether the gluing quality meets the technical requirements;
the glue storage system is used for storing glue;
the glue outlet system comprises a glue extruding device and a movement mechanism for controlling the extruding device; the extruding device comprises an electromagnetic valve, and the electromagnetic valve is used for receiving a signal of a computer terminal and adjusting the opening of the valve so as to control the extruding speed of the glue; the movement mechanism is controlled by a stepping motor, and the stepping motor receives a signal of a computer terminal so as to control the movement speed of the movement mechanism; the electromagnetic valve and/or the stepping motor realize the gluing thickness according to the waviness of the gluing surface of the module body so as to meet the technical requirements;
the constant temperature system is used for ensuring the stable state of the glue and avoiding the change of density and viscosity caused by temperature change, thereby ensuring that the glue coating amount accords with a set value. The constant temperature system comprises heating plate, thermal insulation material, temperature sensor, heating power supply etc. and temperature sensor feeds back the temperature signal of glue and gives heating power supply, and heating power supply adopts technologies such as PID to control the electric power of exporting to the heating plate to guarantee the stability of glue temperature.
A gluing process for a battery module comprises the following steps:
1) placing the surface to be glued of the module body upwards at a module gluing station;
2) a detection system of the gluing equipment detects the profile and the surface unevenness of the module body and feeds data back to the computer terminal;
3) the computer terminal converts the data input by the detection system into the curve data of the change of the rotating speed of the stepping motor along with the position;
4) the stepping motor controls the moving speed of the gluing head to glue according to the change curve data in the step 3);
5) after the gluing is finished, a detection system detects the gluing quality;
6) if the gluing quality meets the design requirements, the module body is placed into a baking oven, and the high-elasticity heat conducting material layer is solidified, so that the battery module is obtained.
A gluing process for a battery module comprises the following steps:
1) placing the surface to be glued of the module body upwards at a module gluing station;
2) a detection system of the gluing equipment detects the profile and the surface unevenness of the module body and feeds data back to the computer terminal;
3) the computer terminal converts the data input by the detection system into curve data of the change of the opening of the electromagnetic valve along with the position of the gluing head;
4) the electromagnetic valve controls the glue extrusion speed to glue according to the data of the change curve in the control step 3);
5) after the gluing is finished, a detection system detects the gluing quality;
6) if the gluing quality meets the design requirements, the module body is placed into a baking oven, and the high-elasticity heat conducting material layer is solidified, so that the battery module is obtained.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the heat dissipation surface of the battery module is coated with the high-elasticity heat conduction material layer, so that the main heat dissipation surface of the module body has certain compressibility; can meet the filling of uneven interfaces and the heat transfer requirements under various applications. The conductive adhesive has good contact with electronic products during assembly, and shows lower contact thermal resistance and good electrical insulation property.
2. The invention can select the gluing surface and glue in addition to the main gluing surface, thereby increasing the effective heat transfer area and ensuring the better heat dissipation effect of the battery. The height of the optional gluing surface after gluing is smaller than that of the main gluing surface after gluing, so that the pressure of the main gluing surface is equal to or close to that of the optional gluing surface after the module is pressed when the module is assembled in a battery pack. The height difference between the height of the optional glue coating surface after gluing and the height of the main glue coating surface after gluing can be obtained through a module locking experiment or obtained through calculation.
3. The gluing equipment can automatically adjust the gluing amount according to the flatness of the main radiating surface of the module body, and in addition, the invention provides a gluing process for the battery module and the gluing equipment thereof, wherein the gluing thickness can be realized through an electromagnetic valve and/or a stepping motor according to the waviness of the gluing surface of the module body so as to meet the technical requirements.
4. The invention can conveniently realize automation, realizes higher production efficiency than that of pasting the heat conducting pad, also realizes lower process cost than that of the heat conducting pad, and in addition, can prevent the matching surface from generating bubbles through the exhaust channel.
5. By using the battery module grouped energy storage electric cabinet, the heat of the module can be guided to the electric cabinet structural member through the high-elasticity heat conduction material layer on the surface of the module, so that the effective heat dissipation area is increased; in the equipment powered by the battery module provided by the invention as a standby power supply, the heat of the module can be guided to the structural member of the power supply equipment through the high-elasticity heat conducting material layer on the surface of the module, so that the effective heat dissipation area is increased.
Drawings
FIG. 1 is a schematic front view of a module body without a layer of high elastic thermal conductive material;
FIG. 2 is a schematic bottom view of a module body without a layer of high elastic thermal conductive material;
FIG. 3 is a schematic view showing the structure of a module body coated with a layer of highly elastic and thermally conductive material on its main coated surface;
FIG. 4 is a second schematic structural view of a module body with a main glue coated with a layer of high elastic thermal conductive material;
fig. 5 is a schematic structural view of the bottom of the battery cell when the high-elasticity heat-conducting material layer is not coated;
fig. 6 is a schematic structural diagram of the bottom of the battery cell when the high-elasticity heat-conducting material layer is coated;
fig. 7 is a schematic structural view of a battery module in which the tail end of a heat dissipation aluminum sheet is located on the side where the cells are arranged;
FIG. 8 is a schematic view of a heat-dissipating aluminum sheet;
fig. 9 is a schematic structural view of a battery module in which the ends of heat-dissipating aluminum sheets are coated with a layer of highly elastic heat-conductive material;
FIG. 10 is a circuit diagram of a thermostat system;
FIG. 11 is a flow chart of a gluing process for controlling the gluing thickness by controlling the moving speed of a gluing head;
fig. 12 is a flow chart of the gluing process for controlling the gluing thickness by controlling the opening degree of the solenoid valve.
Detailed Description
In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to 4, a battery module includes a module body, the module body includes a cell arrangement formed by a plurality of cells, a module body upper cover, a module body end plate, a module body side plate, and a module signal acquisition plate, the module body side plate has a flange facing the cells; optionally, the module body may further include a module bottom plate, and the module bottom plate is located at the bottom of the cell arrangement;
in this example, the module body is coated with a layer of highly elastic heat-conducting material on the external heat-conducting surface; the main external heat transfer surface of the battery module is opposite to the liquid cooling battery pack and refers to the matching surface of the module relative to the liquid cooling plate; for naturally cooling the battery pack, the main external heat transfer surface of the module refers to the matching surface of the module and the box body;
more specifically, for a module body without a module base plate, the high-elasticity heat-conducting material layer is coated and cured on the bottom of the cell arrangement of the module; for a module body with a module base, the layer of high elastic thermal conductive material is coated and cured on the module base.
FIG. 5 is a cross-sectional view of a module body without a bottom plate, the bottom of the module body having a height difference d. The module body is in groups the in-process, has position tolerance between the electric core, has difference in height d even between electric core itself, leads to module bottom unevenness. As shown in fig. 6, which is a cross-sectional view of the battery module after coating the highly elastic heat conductive material layer, the bottom is a flat surface.
In this embodiment, the surface of the bottom of the battery cell exposed outside is a main glue coating surface, and the surface of the flanging of the side plate of the module body is an optional glue coating surface; besides the main gluing surface gluing, the gluing surface can be selected and also can be glued, the effective heat transfer area is increased, and the better heat dissipation effect of the battery is ensured. The height of the optional gluing surface after gluing is smaller than that of the main gluing surface after gluing, so that the pressure of the main gluing surface is equal to or close to that of the optional gluing surface after the module is pressed when the module is assembled in a battery pack. The height difference between the height of the optional glue coating surface after gluing and the height of the main glue coating surface after gluing can be obtained through a module locking experiment or obtained through calculation.
As shown in fig. 3-4, the module body is only provided with a main gluing surface coated with a high-elasticity heat-conducting material layer, and the gluing directions of the two module bodies are different, and in actual operation, the gluing direction can be consistent with the cell arrangement direction or perpendicular to the cell arrangement direction.
As shown in fig. 7 to 9, the module body composed of the soft-package battery cell may also be adopted in the present invention; the module body comprises a battery cell arrangement formed by a plurality of battery cells, a module end plate and a heat dissipation aluminum sheet; the module end plate is provided with a module mounting hole, a heat dissipation aluminum sheet is arranged between the battery cell arrays, and the tail end of the heat dissipation aluminum sheet is positioned on the side surface of the module; the heat dissipation aluminum sheet adopts T font structure or L shape structure, and a lateral position of heat dissipation aluminum sheet is the end of heat dissipation aluminum sheet, and the end of heat dissipation aluminum sheet is located the bottom that the electric core was arranged or the side that the electric core was arranged, and this moment, the end of heat dissipation aluminum sheet is the external main cooling surface of module, the coating of high elasticity heat conduction material layer is solidified at the end of heat dissipation aluminum sheet, or the module surface at the terminal place of heat dissipation aluminum sheet is coated simultaneously.
Specifically, the high-elasticity heat conduction material layer is arranged in a strip mode, an exhaust groove is formed between the strips, air on a matching surface can be exhausted, the high-elasticity heat conduction material layer is perfectly attached to the box body, and an air interlayer is not arranged in the middle.
The bottom on high-elasticity heat conduction material layer is equipped with from the type membrane, it does not receive the pollution to be used for protecting high-elasticity heat conduction material layer from the type membrane, when battery module installs service positions such as battery package, energy storage cabinet, remove from the type membrane.
In this embodiment, the high-elasticity heat-conducting material layer is made of a heat-conducting gel, and the heat-conducting gel is a two-component preformed heat-conducting silicone grease product.
The battery module is installed as follows: there is protruding muscle on the battery package box, and four module fixed feet of module body align four protruding muscle that correspond on the battery package box, then when locking module body on the battery box with the bolt, the protruding muscle of four foot contact box of module body, the high elasticity heat conducting material layer atress compression of module body, and through the air between the fitting surface of exhaust duct evacuation module body bottom and box.
In addition, the square battery cell module is taken as an example for explanation in the embodiment, the battery module design further comprises a module formed by a soft package battery cell, a main radiating surface of some soft package module bodies is a module bottom surface, and a main radiating surface of some soft package module bodies is a module side surface. To the soft package module of main cooling surface for the module bottom surface, its high elasticity heat conduction material coating solidification is in the module bottom surface, to the soft package module of main cooling surface for the module side, its high elasticity heat conduction material layer coating solidification is in the side of module body.
In this embodiment, a gluing device for a battery module comprises a detection system, a glue storage system, a glue outlet system, a constant temperature system, a self-checking system and a computer terminal;
the detection system comprises an early detection and a later detection, wherein the early detection is used for detecting the surface quality of the surface to be coated, such as surface contour and size, surface unevenness and the like, and feeding back the detection result to the computer terminal; the later detection is used for detecting whether the gluing quality (including the height, width, path, coating area and edge profile of the glue) meets the technical requirements; generally, advanced detection systems employ laser ranging;
the glue storage system is used for storing A, B glue;
the glue discharging system comprises an A, B glue extruding device and a movement mechanism for controlling the extruding device; the extruding device comprises an electromagnetic valve, and the electromagnetic valve is used for receiving a signal of a computer terminal and adjusting the opening of the valve so as to control the extruding speed of the glue; the movement mechanism is controlled by a stepping motor, and the stepping motor receives a signal of a computer terminal so as to control the movement speed of the movement mechanism; the electromagnetic valve and/or the stepping motor realize the gluing thickness according to the waviness of the gluing surface of the module body so as to meet the technical requirements; the arrangement position of the electromagnetic valve is as close to the glue outlet head as possible so as to reduce the influence of the change of the glue density on the glue coating amount;
the constant temperature system is used for ensuring the stable state of the glue and avoiding the change of density and viscosity caused by temperature change, thereby ensuring that the glue coating amount accords with a set value. As shown in fig. 10, the constant temperature system is composed of a heating sheet, a heat insulating material, a temperature sensor, a heating power supply and the like, wherein the temperature sensor feeds back a glue temperature signal to the heating power supply, and the heating power supply controls electric power output to the heating sheet by using technologies such as PID and the like, so as to ensure the stability of the glue temperature.
The rubber coating technology that this embodiment is used for battery module has two kinds, firstly controls rubber coating thickness through controlling the first velocity of motion of rubber coating: and secondly, the gluing thickness is controlled by controlling the opening of the electromagnetic valve.
As shown in fig. 11, the gluing process for controlling the gluing thickness by controlling the moving speed of the gluing head comprises the following steps:
1) placing the surface to be glued of the module body upwards at a module gluing station;
2) a detection system of the gluing equipment detects the profile and the surface unevenness of the module body and feeds data back to the computer terminal;
3) the computer terminal converts the data input by the detection system into the curve data of the change of the rotating speed of the stepping motor along with the position;
4) the stepping motor controls the moving speed of the gluing head to glue according to the change curve data in the step 3);
5) after the gluing is finished, a detection system detects the gluing quality;
6) if the gluing quality meets the design requirements, the module body is placed into a baking oven, and the high-elasticity heat conducting material layer is solidified, so that the battery module is obtained.
As shown in fig. 12, the gluing process for controlling the gluing thickness by controlling the opening of the solenoid valve comprises the following steps:
1) placing the surface to be glued of the module body upwards at a module gluing station;
2) a detection system of the gluing equipment detects the profile and the surface unevenness of the module body and feeds data back to the computer terminal;
3) the computer terminal converts the data input by the detection system into curve data of the change of the opening of the electromagnetic valve along with the position of the gluing head;
4) the electromagnetic valve controls the extrusion speed of the glue to glue according to the data of the change curve of the control step 3);
5) after the gluing is finished, a detection system detects the gluing quality;
6) if the gluing quality meets the design requirements, the module body is placed into a baking oven, and the high-elasticity heat conducting material layer is solidified, so that the battery module is obtained.
Claims (6)
1. A gluing process for a battery module is characterized by comprising the following steps:
1) placing the surface to be glued of the module body upwards at a module gluing station;
2) a detection system of the gluing equipment detects the profile and the surface unevenness of the module body and feeds data back to the computer terminal;
3) the computer terminal converts the data input by the detection system into the change curve data of the rotating speed of the stepping motor along with the position or the change curve data of the opening of the electromagnetic valve along with the position of the gluing head;
4) the stepping motor controls the moving speed of the glue coating head to coat glue according to the change curve data in the step 3), or the electromagnetic valve controls the extruding speed of the glue to coat glue according to the change curve data in the step 3);
5) after the gluing is finished, a detection system detects the gluing quality;
6) if the gluing quality meets the design requirement, placing the module body into a baking oven, and curing the high-elasticity heat-conducting material layer to obtain the battery module;
the battery module comprises a module body, wherein a high-elasticity heat conduction material layer is coated on the external heat transfer surface of the module body;
the module body comprises a battery cell arrangement formed by a plurality of battery cells, a module bottom plate and a module body side plate; the module bottom plate is located the bottom that the electric core was arranged, high elasticity heat conduction material layer coating and solidification are in the side of the bottom or the module that the electric core was arranged.
2. A paste coating process for a battery module according to claim 1, wherein: the module body curb plate has the turn-ups towards electric core, and the electric core bottom exposes for main spreading surface at outer face, and the turn-ups of module body curb plate face is optional spreading surface, and highly be less than the height behind the main spreading surface rubber coating after the optional spreading surface rubber coating.
3. A paste coating process for a battery module according to claim 1, wherein: forming a module body by adopting a soft-packaged battery cell; the module body comprises a battery cell arrangement formed by a plurality of battery cells, a module end plate and a heat dissipation aluminum sheet; the heat dissipation aluminum sheet is arranged between the battery cores and is of a T-shaped structure or an L-shaped structure, the transverse position of the heat dissipation aluminum sheet is the tail end of the heat dissipation aluminum sheet, the tail end of the heat dissipation aluminum sheet is arranged at the bottom of the battery cores or on the side face of the battery cores, and the high-elasticity heat conduction material layer is coated and cured at the tail end of the heat dissipation aluminum sheet or is coated on the surface of a module where the tail end of the heat dissipation aluminum sheet is located at the same time.
4. A paste coating process for a battery module according to claim 1, wherein: the high-elasticity heat conduction material layer is arranged in a strip mode, and an exhaust groove is formed between the strips; the bottom on high-elasticity heat conduction material layer is equipped with from the type membrane, it does not receive the pollution to be used for protecting high-elasticity heat conduction material layer from the type membrane, when battery module installs, remove from the type membrane.
5. A paste coating process for battery modules according to claim 1, wherein: the high-elasticity heat conduction material layer adopts heat conduction gel, silica gel, rubber and latex; the heat-conducting gel is a two-component preformed heat-conducting silicone grease product; the silica gel, rubber and latex comprise silica gel, rubber or latex with heat conducting additives.
6. The utility model provides a rubber coating equipment for battery module which characterized in that: the system comprises a detection system, a glue storage system, a glue outlet system, a constant temperature system and a computer terminal;
the detection system comprises an early detection and a later detection, wherein the early detection is used for detecting the surface quality of the surface to be coated with glue and feeding back a detection result to the computer terminal; the later detection is used for detecting whether the gluing quality meets the technical requirements;
the glue storage system is used for storing glue;
the glue outlet system comprises a glue extruding device and a movement mechanism for controlling the extruding device; the extruding device comprises an electromagnetic valve, and the electromagnetic valve is used for receiving a signal of a computer terminal and adjusting the opening of the valve so as to control the extruding speed of the glue; the movement mechanism is controlled by a stepping motor, and the stepping motor receives a signal of a computer terminal so as to control the movement speed of the movement mechanism; the electromagnetic valve and/or the stepping motor realize the gluing thickness according to the waviness of the gluing surface of the module body so as to meet the technical requirements;
the constant temperature system is used for ensuring the stable state of the glue and avoiding the change of density and viscosity caused by temperature change, thereby ensuring that the glue coating amount accords with a set value.
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| CN116618251A (en) * | 2023-07-19 | 2023-08-22 | 江苏时代新能源科技有限公司 | Glue spreading control method, glue spreading control system, glue spreading control device, electronic equipment and storage medium |
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