A power battery hot-pressing insulation adhesive film raw material pretreatment device
By introducing infrared heating, hot air supply, preheating, and waste heat recovery components into the pretreatment device for hot-pressed insulating film raw materials of power batteries, the problem of incomplete hot air recovery is solved, achieving efficient utilization of thermal energy and reducing energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WAISI NEW MATERIALS TAIZHOU CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-19
AI Technical Summary
Existing pretreatment devices for hot-pressed insulating film raw materials for power batteries are not effective in hot air recovery and utilization, resulting in energy waste and incomplete recovery.
It employs infrared heating components, hot air supply components, conveying components, preheating components, and waste heat recovery components to improve thermal energy utilization efficiency through multiple heat energy recovery and utilization processes, combined with a plasma cleaning mechanism.
It achieves dual recovery and utilization of heat energy, significantly reduces energy consumption, and improves the pretreatment efficiency of hot-pressed insulating film.
Smart Images

Figure CN224374570U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pretreatment technology for hot-pressed insulating film raw materials for power batteries, specifically a pretreatment device for hot-pressed insulating film raw materials for power batteries. Background Technology
[0002] The pretreatment device for hot-pressing insulating film raw materials in power batteries is a key piece of equipment used in the lithium battery manufacturing process to pretreat insulating film materials. It primarily improves the adhesion between the film and electrode materials and enhances the quality of hot-pressing. Typically, the pretreatment device first activates the film surface with plasma to enhance adhesion, then heats it to a suitable hot-pressing temperature. During heating, hot air is introduced to ensure uniform heating; however, directly venting the heated air wastes energy, necessitating recycling. Existing devices only have a single recycling structure, resulting in poor efficiency and incomplete recycling. Therefore, we propose a pretreatment device for hot-pressing insulating film raw materials in power batteries. Utility Model Content
[0003] The present invention aims to solve the problems existing in the prior art or related technologies.
[0004] Therefore, the technical solution adopted by this utility model is as follows: a pretreatment device for hot-pressed insulating film raw materials of power batteries, including a support frame, an infrared heating component, a hot air supply component, a conveying component, a preheating component, a waste heat recovery component, and a plasma cleaning mechanism. The infrared heating component is fixedly installed on the top of the support frame, the hot air supply component is fixedly installed on the infrared heating component, the conveying component includes a first exhaust fan fixedly installed on the left side of the infrared heating component and a conveying pipe fixed to the first exhaust fan, the preheating component includes a preheating box fixedly installed on the top of the support frame and fixed to the conveying pipe, and a second through hole opened at the front and rear ends of the preheating box, the waste heat recovery component includes a second exhaust fan fixedly installed on the right side of the preheating box, a recovery pipe fixedly installed on the right side of the second exhaust fan, a heat exchange box fixed to the recovery pipe, a water inlet pipe and a drain pipe fixedly installed on the rear side of the heat exchange box, and the plasma cleaning mechanism is fixedly installed on the top of the support frame.
[0005] Preferably, the bottom of the support frame is provided with a plurality of support rods, and the top of the support frame is connected to a plurality of conveying rollers by bearings.
[0006] Preferably, the infrared heating assembly includes a heating box fixedly disposed at the top of the support frame, an infrared heating tube fixedly disposed inside the heating box, and a first through hole opened at the front and rear ends of the heating box.
[0007] Preferably, the hot air supply assembly includes a hot air generator fixedly disposed at the top of the heating box and a supply pipe fixedly disposed to the right side of the hot air generator and fixed to the heating box.
[0008] Preferably, the hot air generator includes a housing fixedly disposed at the top of the heating box, an axial fan fixedly disposed within the housing, and a resistance wire.
[0009] Preferably, there are two of each of the conveying components and the hot air supply components.
[0010] Preferably, the second exhaust fan has the same structure as the first exhaust fan.
[0011] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: The first exhaust fan in this utility model can transport the hot air in the heating box to the preheating box through the delivery pipe, thereby preheating the insulating film through the preheating box, which can perform the first heat energy recovery. Then, the second exhaust fan can transport the hot air in the preheating box to the recovery pipe, and the water inlet pipe can inject a certain amount of clean water into the heat exchange box, thereby utilizing the heat transfer property to perform the second heat energy recovery. The two recovery uses have a good effect, and at the same time, the energy consumption can be greatly reduced by preheating. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This utility model Figure 1 Schematic diagram of the mid-infrared heating component;
[0014] Figure 3 This utility model Figure 1 Schematic diagram of the structure of the medium-temperature air heater;
[0015] Figure 4 This utility model Figure 1 Schematic diagram of the preheating component;
[0016] Figure 5 This utility model Figure 1 A schematic diagram of the waste heat recovery component.
[0017] Figure label:
[0018] 100. Support frame; 101. Support rod; 102. Conveyor roller;
[0019] 200. Infrared heating component; 201. Heating box; 202. Infrared heating tube; 203. First through hole;
[0020] 300. Hot air supply assembly; 301. Hot air heater; 3011. Housing; 3012. Axial fan; 3013. Resistance wire; 302. Supply pipe;
[0021] 400. Conveying assembly; 401. First exhaust fan; 402. Conveying pipe;
[0022] 500. Preheating assembly; 501. Preheating box; 502. Second through hole;
[0023] 600. Waste heat recovery assembly; 601. Second exhaust fan; 602. Recovery pipe; 603. Heat exchanger; 604. Water inlet pipe; 605. Drain pipe;
[0024] 700. Plasma cleaning system. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0026] The following describes some embodiments of the present invention with reference to the accompanying drawings, providing a pretreatment device for hot-pressed insulating adhesive film raw materials for power batteries.
[0027] Example 1:
[0028] Reference Figure 1-5 This is the first embodiment of the present invention. This embodiment provides a pretreatment device for hot-pressed insulating adhesive film raw materials of power batteries, including a support frame 100, an infrared heating component 200, a hot air supply component 300, a conveying component 400, a preheating component 500, a waste heat recovery component 600, and a plasma cleaning mechanism 700.
[0029] Specifically, the bottom of the support frame 100 is provided with several support rods 101, and the top of the support frame 100 is connected to several conveying rollers 102. In use, the support rods 101 can support the support frame 100, and the several conveying rollers 102 can convey the adhesive film for pretreatment.
[0030] Specifically, the infrared heating assembly 200 is fixedly installed at the top of the support frame 100. The infrared heating assembly 200 includes a heating box 201 fixedly installed at the top of the support frame 100, an infrared heating tube 202 fixedly installed inside the heating box 201, and a first through hole 203 opened at the front and rear ends of the heating box 201. In use, the infrared heating tube 202 can increase the temperature inside the heating box 201 in order to increase the temperature of the adhesive film, while the first through hole 203 allows the adhesive film to pass through the heating box 201.
[0031] Specifically, the hot air supply assembly 300 is fixedly mounted on the infrared heating assembly 200. The hot air supply assembly 300 includes a hot air blower 301 fixedly mounted on the top of the heating chamber 201 and a supply pipe 302 fixedly mounted on the right side of the hot air blower 301 and fixed to the heating chamber 201. The hot air blower 301 includes a housing 3011 fixedly mounted on the top of the heating chamber 201, an axial fan 3012 fixedly mounted inside the housing 3011, and a resistance wire 3013. In use, the resistance wire 3013 can be heated by turning on the power supply, and the hot air around the resistance wire 3013 can be transported to the heating chamber 201 through the supply pipe 302 by controlling the operation of the axial fan 3012 so that the film is heated evenly.
[0032] Specifically, the conveying component 400 includes a first exhaust fan 401 fixedly disposed on the left side of the infrared heating component 200 and a conveying pipe 402 fixed to the first exhaust fan 401. Both the conveying component 400 and the hot air supply component 300 are provided in twos. In use, the hot air in the heating box 201 can be extracted by controlling the operation of the first exhaust fan 401, and then the hot air can be conveyed to the preheating box 501 through the conveying pipe 402 so as to recover and use the heat energy.
[0033] Specifically, the preheating assembly 500 includes a preheating box 501 fixedly mounted on the top of the support frame 100 and fixed to the delivery pipe 402, and a second through hole 502 opened at the front and rear ends of the preheating box 501. In use, the adhesive film can pass through the preheating box 501 through the second through hole 502 so that the adhesive film can be preheated by the preheating box 501.
[0034] Specifically, the waste heat recovery assembly 600 includes a second exhaust fan 601 fixedly installed on the right side of the preheating box 501, a recovery pipe 602 fixedly installed on the right side of the second exhaust fan 601, a heat exchange box 603 fixed to the recovery pipe 602, a water inlet pipe 604 and a drain pipe 605 fixedly installed on the rear side of the heat exchange box 603. The second exhaust fan 601 has the same structure as the first exhaust fan 401. In use, the second exhaust fan 601 can deliver hot air from the preheating box 501 to the recovery pipe 602, while clean water can be injected into the heat exchange box 603 through the water inlet pipe 604. After injection, heat exchange can be performed, thereby increasing the temperature of the clean water. After the temperature is increased, the warm water can be discharged through the drain pipe 605 for recovery.
[0035] Specifically, the plasma cleaning mechanism 700 is fixedly installed at the top of the support frame 100. In use, the plasma cleaning mechanism 700 uses plasma to activate the surface of the adhesive film in order to enhance the bonding performance.
[0036] The working principle and usage process of this utility model are as follows: First, connect the power supply to the infrared heating tube 202 and the resistance wire 3013. The infrared heating tube 202 and the resistance wire 3013 will heat up when the power is on. Then, control the axial flow fan 3012 to operate. The operating axial flow fan 3012 will deliver hot air to the heating box 201 through the supply pipe 302. Next, control the first exhaust fan 401 to operate. The operating first exhaust fan 401 will deliver the hot air from the heating box 201 to the preheating box 501 through the delivery pipe 402, thus preheating the film. Then, control the second exhaust fan 601 to operate. The operating second exhaust fan 601 can deliver the hot air from the heating box 201 to the recovery pipe 602. Then, add a certain amount of clean water to the heat exchange box 603 through the water inlet pipe 604. After adding water, heat exchange can be performed using the heat transfer property, thus recovering heat energy.
[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A power battery hot-pressing insulation film raw material pretreatment device, characterized in that, include: Support frame (100); An infrared heating assembly (200) is fixedly mounted on the top of the support frame (100); A hot air supply assembly (300) is fixedly mounted on the infrared heating assembly (200); The conveying assembly (400) includes a first exhaust fan (401) fixedly disposed on the left side of the infrared heating assembly (200) and a conveying pipe (402) fixed to the first exhaust fan (401); The preheating assembly (500) includes a preheating box (501) fixedly disposed at the top of the support frame (100) and fixed to the conveying pipe (402) and a second through hole (502) opened at the front and rear ends of the preheating box (501); The waste heat recovery assembly (600) includes a second exhaust fan (601) fixedly installed on the right side of the preheating box (501), a recovery pipe (602) fixedly installed on the right side of the second exhaust fan (601), a heat exchange box (603) fixed to the recovery pipe (602), and an inlet pipe (604) and a drain pipe (605) fixedly installed on the rear side of the heat exchange box (603). The plasma cleaning unit (700) is fixedly installed at the top of the support frame (100).
2. The power battery hot-pressing insulation adhesive film raw material pretreatment device according to claim 1, characterized in that, The bottom of the support frame (100) is provided with a number of support rods (101), and the top of the support frame (100) is connected to a number of conveying rollers (102).
3. The pretreatment device for hot-pressed insulating film raw materials for power batteries according to claim 1, characterized in that, The infrared heating assembly (200) includes a heating box (201) fixedly installed at the top of the support frame (100), an infrared heating tube (202) fixedly installed inside the heating box (201), and a first through hole (203) opened at the front and rear ends of the heating box (201).
4. The pretreatment device for hot-pressed insulating film raw materials for power batteries according to claim 3, characterized in that, The hot air supply assembly (300) includes a hot air blower (301) fixedly disposed at the top of the heating box (201) and a supply pipe (302) fixedly disposed on the right side of the hot air blower (301) and fixed to the heating box (201).
5. The pretreatment device for hot-pressed insulating film raw materials for power batteries according to claim 4, characterized in that, The hot air generator (301) includes a housing (3011) fixedly installed at the top of the heating box (201), an axial fan (3012) fixedly installed inside the housing (3011), and a resistance wire (3013).
6. The pretreatment device for hot-pressed insulating adhesive film raw materials for power batteries according to claim 1, characterized in that, Two of each of the conveying assembly (400) and the hot air supply assembly (300) are provided.
7. The pretreatment device for hot-pressed insulating film raw materials for power batteries according to claim 1, characterized in that, The second exhaust fan (601) has the same structure as the first exhaust fan (401).