Infrared heating device

Abstract

The utility model relates to an infrared heating device, and belongs to the technical field of infrared heating, the infrared heating device comprises a lampshade, an infrared lamp and a plurality of connecting structures, the lampshade comprises a top shell and a bottom shell, the top shell and the bottom shell are spliced to form a containing space, the bottom shell is made of a transparent material, the infrared lamp is arranged in the containing space, and the connecting structures are arranged in the containing space. The connecting structures are arranged at the top of the top shell in the length direction of the top shell, the bottoms of the connecting structures are connected to the lampshade, the tops of the connecting structures are connected to the solid structure, and the height of the lampshade and the height of the infrared lamp are adjusted by adjusting the length of the connecting structures at the bottom of the solid structure. According to the infrared heating device provided by the invention, the drying effect of the infrared lamp can be adaptively changed according to the actual demand of the pole piece, the drying effect of the battery pole piece is improved, the infrared lamp is completely wrapped in the lampshade, and explosion caused by contact between NMP gas and the high-temperature infrared lamp is avoided.

Description

Technical Field

[0001] The present application relates to the field of infrared heating technology, and in particular to an infrared heating device. Background Art

[0002] In the coating and drying process of the pole pieces in lithium battery production, infrared lamp drying technology has begun to be used. Infrared radiation can directly heat the surface of the pole piece, causing the water or other solvents to evaporate quickly, and the drying speed is fast and uniform. However, the existing infrared heating device has the problem of uncontrollable heating effect. The distance between the infrared lamp and the pole piece will affect the drying effect of the pole piece. A closer distance may cause quality problems such as cracking, discoloration and burning on the pole piece surface. A longer distance may affect the overall performance of the pole piece due to slow drying speed. Moreover, during the drying of the positive electrode of the battery, the volatilized NMP (N-Methylpyrrolidone) gas mixes with the air and may cause an explosion when it encounters high temperature. Utility Model Content

[0003] Based on this, it is necessary to provide an infrared heating device to solve the technical problem of uncontrollable heating effect of the infrared heating device in the prior art.

[0004] To achieve the above objectives, the present application provides an infrared heating device, which includes:

[0005] The lampshade includes a top shell and a bottom shell. The top shell and the bottom shell are assembled to form a receiving space. The bottom shell is made of transparent material.

[0006] an infrared lamp, disposed in the accommodation space;

[0007] Multiple connecting structures are arranged on the top of the top shell along the length direction of the top shell, the bottom of the connecting structure is connected to the lampshade, and the top of the connecting structure is connected to the physical structure. The height of the lampshade and the infrared lamp can be adjusted by adjusting the length of the connecting structure at the bottom of the physical structure.

[0008] Optionally, the connection structure includes:

[0009] A screw rod, the bottom of which passes through the top shell and extends into the accommodation space, and the top of which passes through the solid structure;

[0010] Two first locking nuts, threadedly connected to the screw and disposed on opposite sides of the top shell, the two first locking nuts being used to fix the top shell and the screw together; and

[0011] Two second locking nuts are screwed to the screw rod and are respectively arranged on opposite sides of the entity structure. The height of the lampshade and the infrared lamp can be adjusted by adjusting the positions of the two second locking nuts.

[0012] Optionally, the connecting structure is an electric telescopic rod.

[0013] Optionally, two connecting structures are provided, and the two connecting structures are respectively provided at two end portions of the top surface of the top shell.

[0014] Optionally, the infrared heating device further includes a plurality of spring clips corresponding one-to-one to the plurality of connection structures. The spring clips are arranged in the accommodating space and connected to the bottom of the connection structure. The spring clips are used to clamp the infrared lamp.

[0015] Optionally, the infrared heating device further includes a cooling structure, which includes:

[0016] The mesh plate is arranged in the accommodation space and above the infrared lamp, and the mesh plate is fixed on the connecting structure;

[0017] an air inlet duct, passing through the top shell, the air inlet duct being in communication with the accommodation space above the mesh plate, and being used for conveying cooling gas; and

[0018] The air outlet duct passes through the top shell and the mesh plate, and the air outlet duct is communicated with the accommodation space below the mesh plate.

[0019] Optionally, the air inlet duct and the air outlet duct are respectively arranged at two ends of the top surface of the top shell, and the mesh holes on the mesh plate gradually increase from one end corresponding to the air inlet duct to one end corresponding to the air outlet duct.

[0020] Optionally, through holes are opened on the side surfaces at both ends of the top shell, and the through holes are used for the cables of the infrared lamps to pass through, and the connection between the cables and the through holes is coated with sealant.

[0021] Optionally, the inner side surface of the top shell is coated with a reflective coating, or the inner side surface of the top shell is polished.

[0022] Optionally, the bottom shell is an explosion-proof quartz glass plate.

[0023] The beneficial effect of the infrared heating device provided by the present application is that: compared with the prior art, the infrared heating device of the present application includes a lampshade, an infrared lamp and multiple connecting structures, the infrared lamp is arranged in the accommodation space of the lampshade, and the multiple connecting structures are arranged on the top of the top shell along the length direction of the top shell, the bottom of the connecting structure is connected to the lampshade, and the top of the connecting structure is connected to the solid structure. By adjusting the length of the connecting structure at the bottom of the solid structure to adjust the height of the lampshade and the infrared lamp, the drying effect of the infrared lamp can be adaptively changed according to the actual needs of the electrode, avoiding the problem of the unadjustable distance between the infrared lamp tube and the electrode when processing electrodes of different material thicknesses, avoiding the problem of cracking, burning or slow drying speed on the surface of the electrode, and improving the drying effect of the battery electrode; at the same time, the top shell and the bottom shell of the lampshade are spliced ​​to form a accommodation space, and the bottom shell is made of transparent material, so as to achieve the effect of completely wrapping the infrared lamp in the lampshade, avoiding the NMP gas generated by drying from contacting the high-temperature infrared lamp and exploding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 A schematic diagram of the internal structure of the infrared heating device provided in an embodiment of the present application;

[0026] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0027] Description of reference numerals:

[0028] 1. Lampshade; 110. Top shell; 120. Bottom shell; 130. Accommodation space; 2. Infrared lamp; 210. Cable; 3. Connection structure; 310. Screw; 320. First locking nut; 330. Second locking nut; 4. Spring clip; 5. Cooling structure; 510. Mesh plate; 520. Air inlet duct; 530. Air outlet duct; 6. Physical structure. DETAILED DESCRIPTION

[0029] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0032] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0033] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0035] The embodiment of the present application provides an infrared heating device, please refer to Figure 1 and Figure 2 The infrared heating device includes a lampshade 1, an infrared lamp 2 and multiple connecting structures 3. The lampshade 1 includes a top shell 110 and a bottom shell 120. The top shell 110 and the bottom shell 120 are assembled to form a receiving space 130. The bottom shell 120 is made of transparent material. The infrared lamp 2 is arranged in the receiving space 130. Multiple connecting structures 3 are arranged on the top of the top shell 110 along the length direction of the top shell 110. The bottom of the connecting structure 3 is connected to the lampshade 1, and the top of the connecting structure 3 is connected to the physical structure 6. The height of the lampshade 1 and the infrared lamp 2 can be adjusted by adjusting the length of the connecting structure 3 at the bottom of the physical structure 6.

[0036] Illustratively, the infrared heating device of the present application is applied to a coating oven for battery electrode production.

[0037] Optionally, the physical structure 6 may be a box body of a coating oven, or the physical structure 6 may also be a prefabricated mounting steel plate.

[0038] In the embodiment of the present application, the infrared heating device includes a lampshade 1, an infrared lamp 2 and a plurality of connecting structures 3. The infrared lamp 2 is arranged in the accommodating space 130 of the lampshade 1. The plurality of connecting structures 3 are arranged on the top of the top shell 110 along the length direction of the top shell 110. The bottom of the connecting structure 3 is connected to the lampshade 1, and the top of the connecting structure 3 is connected to the solid structure 6. By adjusting the length of the connecting structure 3 at the bottom of the solid structure 6 to adjust the height of the lampshade 1 and the infrared lamp 2, the drying effect of the infrared lamp 2 can be adaptively changed according to the actual needs of the electrode, thereby avoiding the processing of different material thicknesses. The problem that the distance between the infrared lamp 2 and the electrode cannot be adjusted when drying the electrode is solved, and the problem of cracking, burning or slow drying speed on the surface of the electrode is avoided, thereby improving the drying effect of the battery electrode; at the same time, the top shell 110 and the bottom shell 120 of the lampshade 1 are spliced ​​to form a accommodating space 130, and the bottom shell 120 is made of transparent material, so as to achieve the effect of completely wrapping the infrared lamp 2 in the lampshade 1, and isolate the flammable and explosive gases volatilized during drying from the high-temperature infrared lamp 2, avoiding the explosion caused by the NMP gas generated by drying contacting with the high-temperature infrared lamp 2 when reaching a specific concentration range.

[0039] In one embodiment, please refer to Figure 1 and Figure 2 The connecting structure 3 includes a screw 310, two first locking nuts 320 and two second locking nuts 330. The bottom of the screw 310 passes through the top shell 110 and extends into the accommodating space 130, and the top of the screw 310 passes through the entity structure 6; the two first locking nuts 320 are screwed to the screw 310 and are arranged on opposite sides of the top shell 110. The two first locking nuts 320 are used to fix the top shell 110 and the screw 310 together; the two second locking nuts 330 are screwed to the screw 310 and are arranged on opposite sides of the entity structure 6. The height of the lampshade 1 and the infrared lamp 2 can be adjusted by adjusting the position of the two second locking nuts 330.

[0040] Specifically, the two first locking nuts 320 rotate toward each other, and once the two first locking nuts 320 press against the two side surfaces of the top shell 110, the top shell 110 and the screw 310 are secured together. It is understood that the principle by which the two first locking nuts 320 secure the solid structure 6 and the screw 310 together is similar to that described above and will not be further elaborated here. To adjust the length of the screw 310 at the bottom of the solid structure 6, the position of the two second locking nuts 330 is adjusted to move the screw 310 upward or downward.

[0041] In one embodiment, please refer to Figure 1 and Figure 2 The connecting structure 3 is an electric telescopic rod, which can adjust the height of the lampshade 1 and the infrared lamp 2 more conveniently and quickly.

[0042] In one embodiment, please refer to Figure 1 and Figure 2 There are two connecting structures 3, which are respectively arranged at the two ends of the top surface of the top shell 110, and the load-bearing is relatively uniform.

[0043] In one embodiment, please refer to Figure 1 and Figure 2 The infrared heating device also includes a plurality of spring clips 4 corresponding one to one with the plurality of connecting structures 3. The spring clips 4 are arranged in the accommodating space 130 and connected to the bottom of the connecting structure 3. The spring clips 4 are used to clamp the infrared lamp 2 and use elastic force to fix the infrared lamp 2. The loading and unloading is relatively convenient, which is convenient for subsequent maintenance or replacement.

[0044] In one embodiment, please refer to Figure 1 and Figure 2 The infrared heating device also includes a cooling structure 5, which includes a mesh plate 510, an air inlet duct 520 and an air outlet duct 530. The mesh plate 510 is arranged in the accommodating space 130 and above the infrared lamp 2. The mesh plate 510 is fixed on the connecting structure 3; the air inlet duct 520 passes through the top shell 110, and the air inlet duct 520 is connected to the accommodating space 130 above the mesh plate 510. The air inlet duct 520 is used to transport cooling gas; the air outlet duct 530 passes through the top shell 110 and the mesh plate 510, and the air outlet duct 530 is connected to the accommodating space 130 below the mesh plate 510.

[0045] Through the above arrangement, the cooling gas can enter the interior of the lampshade 1 through the air inlet duct 520, and after reaching the mesh plate 510, it flows along the mesh plate 510 and flows through the mesh to the surface of the lamp tube of the infrared lamp 2, thereby reducing the temperature of the infrared lamp 2 and improving safety.

[0046] In one embodiment, please refer to Figure 1 and Figure 2 The air inlet duct 520 and the air outlet duct 530 are respectively arranged at the two ends of the top surface of the top shell 110, and the mesh holes on the mesh plate 510 gradually increase from the end corresponding to the air inlet duct 520 to the end corresponding to the air outlet duct 530.

[0047] Specifically, the flow rate of the cooling gas close to the air inlet duct 520 is faster, and the flow rate of the cooling gas away from the air inlet duct 520 is slower. The mesh holes on the mesh plate 510 gradually increase from one end corresponding to the air inlet duct 520 to the end corresponding to the air outlet duct 530, so that the cooling gas of the mesh holes at various locations of the mesh plate 510 tends to be the same, thereby improving the uniformity of cooling and improving the cooling effect.

[0048] In one embodiment, please refer to Figure 1 and Figure 2 Through holes are provided on the sides of both ends of the top shell 110 for the cable 210 of the infrared lamp 2 to pass through. The connection between the cable 210 and the through hole is coated with sealant, which can prevent external NMP gas from entering the lampshade 1 and prevent the cooling gas in the lampshade 1 from leaking and causing a reduction in the cooling effect.

[0049] Alternatively, the cable 210 may be connected to the inside and outside of the lampshade 1 using a KF connector.

[0050] In one embodiment, please refer to Figure 1 and Figure 2 The inner side surface of the top shell 110 is coated with a reflective coating, or the inner side surface of the top shell 110 is polished to improve the reflectivity of the lampshade 1 to infrared light.

[0051] In one embodiment, please refer to Figure 1 and Figure 2 The bottom shell 120 is an explosion-proof quartz glass plate. The quartz glass plate has high mechanical strength, is hard and wear-resistant, and is not easy to be scratched. It also has many advantages such as not easy to change color and penetrate, good heat resistance, corrosion resistance and flame retardancy.

[0052] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An infrared heating device, characterized in that: include: The lampshade includes a top shell and a bottom shell. The top shell and the bottom shell are assembled to form a receiving space. The bottom shell is made of a transparent material. an infrared lamp, disposed in the accommodation space; Multiple connecting structures are arranged on the top of the top shell along the length direction of the top shell, the bottom of the connecting structure is connected to the lampshade, and the top of the connecting structure is connected to the solid structure. The height of the lampshade and the infrared lamp can be adjusted by adjusting the length of the connecting structure at the bottom of the solid structure.

2. The infrared heating device according to claim 1, characterized in that The connection structure includes: a screw rod, the bottom of which passes through the top shell and extends into the accommodation space, and the top of which passes through the solid structure; two first locking nuts, threadedly connected to the screw and disposed on opposite sides of the top shell, the two first locking nuts being used to fix the top shell and the screw together; and Two second locking nuts are screwed to the screw rod and are respectively arranged on opposite sides of the entity structure. The height of the lampshade and the infrared lamp can be adjusted by adjusting the positions of the two second locking nuts.

3. The infrared heating device according to claim 1, characterized in that The connecting structure is an electric telescopic rod.

4. The infrared heating device according to claim 1, characterized in that There are two connecting structures, which are respectively arranged at two ends of the top surface of the top shell.

5. The infrared heating device according to any one of claims 1 to 4, characterized in that: The infrared heating device further includes a plurality of spring clips corresponding one-to-one to the plurality of connection structures. The spring clips are arranged in the accommodating space and connected to the bottom of the connection structure. The spring clips are used to clamp the infrared lamp.

6. The infrared heating device according to any one of claims 1 to 4, characterized in that: The infrared heating device further includes a cooling structure, which includes: a mesh plate, disposed in the accommodation space and above the infrared lamp, the mesh plate being fixed to the connecting structure; an air inlet duct passing through the top shell, the air inlet duct being in communication with the accommodation space above the mesh plate, and the air inlet duct being used for conveying cooling gas; and An air outlet duct passes through the top shell and the mesh plate, and the air outlet duct is communicated with the accommodation space below the mesh plate.

7. The infrared heating device according to claim 6, characterized in that The air inlet duct and the air outlet duct are respectively arranged at two end portions of the top surface of the top shell, and the mesh holes on the mesh plate gradually increase in size from one end corresponding to the air inlet duct to one end corresponding to the air outlet duct.

8. The infrared heating device according to any one of claims 1 to 4, characterized in that: Through holes are provided on the side surfaces of both ends of the top shell, and the through holes are used for the cables of the infrared lamps to pass through, and the connection between the cables and the through holes is coated with sealant.

9. The infrared heating device according to any one of claims 1 to 4, characterized in that: The inner side surface of the top shell is coated with a reflective coating, or the inner side surface of the top shell is polished.

10. The infrared heating device according to any one of claims 1 to 4, characterized in that: The bottom shell is an explosion-proof quartz glass plate.

Images