Infrared heating device and drying equipment

Abstract

The utility model provides an infrared heating device and drying equipment, and relates to the technical field of heating and drying, the infrared heating device comprises an infrared transmitting tube and a cooling piece, the bottom of the infrared transmitting tube is provided with an infrared transmitting part, and the infrared transmitting part is used for transmitting infrared light; the cooling piece is arranged at the top of the infrared transmitting tube and connected with the infrared transmitting tube, and the cooling piece is provided with a cooling air duct communicated with the infrared transmitting tube; the infrared emission part at the bottom of the infrared emission tube emits infrared light to the to-be-dried part, the to-be-dried part is heated through infrared radiation, the energy transmission path is shortened, the energy conversion efficiency is improved, meanwhile, the infrared emission tube is cooled through the cooling air duct, and overheating damage of the infrared emission tube is avoided; the technical problems that in the prior art, the energy transmission path of hot air heating of a hot air oven is long, and the energy conversion rate is low are solved, energy is saved, efficiency is improved, and the overall cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heating and drying equipment, in particular to an infrared heating device and drying equipment. Background Art

[0002] In the lithium battery industry, the key to increasing production capacity is coating equipment. To increase the single-machine capacity of the coating machine, the efficiency of the oven drying is the key; coating equipment accounts for a high proportion of the production line operation cost; at the same time, the oven drying cost accounts for 50%; energy cost reduction is the key; with the rapid development of the lithium battery coating industry, high efficiency and energy saving have become a key direction for the development of coating and drying technology, among which the drying of battery electrodes is an important item in the drying of coating equipment.

[0003] At present, the drying of coating equipment mainly adopts the method of oven drying. A heating bag is set in the oven to heat the air; at the same time, a hot air flow that can be delivered to the electrode to be heated is set in the oven, and the purpose of drying the electrode is achieved by means of hot air heating.

[0004] However, due to the long energy transmission path and low energy conversion rate of hot air heating, its overall cost is high, which is not conducive to energy saving and efficiency improvement. Utility Model Content

[0005] The purpose of the utility model is to provide an infrared heating device and a drying device to alleviate the technical problems in the prior art that the energy transmission path of hot air heating in hot air ovens is long and the energy conversion rate is low, resulting in high overall cost and being unfavorable for energy saving and efficiency improvement.

[0006] The utility model provides an infrared heating device, comprising:

[0007] An infrared emitting tube, wherein an infrared emitting part is provided at the bottom of the infrared emitting tube, and the infrared emitting part is used to emit infrared light;

[0008] A cooling member is arranged on the top of the infrared emitting tube and connected to the infrared emitting tube. The cooling member is provided with a cold air duct communicated with the infrared emitting tube.

[0009] Furthermore, the cooling element is arranged along the extension direction of the infrared emitting tube, the cold air duct is arranged inside the cooling element along the extension direction of the cooling element, an air inlet is arranged at one end of the cold air duct, and the air inlet is used to connect to a cold air source.

[0010] Furthermore, a cold air hole is provided at the bottom of the cooling element, and the cold air hole is arranged toward the infrared emitting tube.

[0011] Furthermore, the plurality of cold air holes are evenly arranged along the extending direction of the infrared emitting tube.

[0012] Furthermore, the infrared heating device also includes a protective cover, which is arranged along the extension direction of the infrared emitting tube, the back side of the protective cover is connected to the cooling element, the inner side of the protective cover is opened, and the infrared emitting tube is arranged in the protective cover.

[0013] Furthermore, the protective cover comprises two reflective walls, the cross-section of the reflective wall is arc-shaped, the two reflective walls are connected to each other to form a guide cavity, and the infrared emitting tube is arranged in the guide cavity.

[0014] Furthermore, the infrared heating device also includes a stabilizing connector, which is respectively arranged at both ends of the protective cover, the upper part of the stabilizing connector is connected to the protective cover, and the lower part of the stabilizing connector is connected to the cooling element.

[0015] Furthermore, the infrared heating device also includes a clamping member, the top of the clamping member is connected to the protective cover or the cooling member, and the bottom of the clamping member is detachably connected to the infrared emitting tube.

[0016] Another aspect of the utility model provides a drying device, comprising the above-mentioned infrared heating device.

[0017] Beneficial effects:

[0018] The utility model provides an infrared heating device, comprising an infrared emitting tube and a cooling element. An infrared emitting part is arranged at the bottom of the infrared emitting tube, and infrared emission is used to emit infrared light. The cooling element is arranged at the top of the infrared emitting tube and is connected with the infrared emitting tube. The cooling element is provided with a cooling air duct connected with the infrared emitting tube. Infrared light is emitted to the parts to be dried through the infrared emitting part at the bottom of the infrared emitting tube, and the parts to be dried are heated by infrared radiation, thereby shortening the energy transmission path and improving the energy conversion efficiency. At the same time, the infrared emitting tube is cooled by the cooling air duct to avoid overheating damage thereof, thereby solving the technical problems of long energy transmission path and low energy conversion rate of hot air heating of hot air oven in the prior art, saving energy and increasing efficiency, and reducing the overall cost.

[0019] The utility model provides a drying device, which has all the advantages of the above-mentioned infrared heating device compared with the prior art, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The utility model provides an overall structural schematic diagram of the infrared heating device in the first embodiment;

[0022] Figure 2 The utility model provides a schematic diagram of the structure of the cold air hole in the infrared heating device in the first embodiment;

[0023] Figure 3 The utility model provides an overall structural schematic diagram of the infrared heating device in the second embodiment;

[0024] Figure 4 The utility model provides an overall structural sectional view of the infrared heating device in the second embodiment.

[0025] icon:

[0026] 100, infrared emitting tube; 110, infrared emitting unit;

[0027] 200, cooling element; 210, cooling air duct; 220, air inlet; 230, cold air hole;

[0028] 300, protective cover; 310, reflecting wall; 320, flow guide cavity;

[0029] 400, secure the connection;

[0030] 500. Clamping piece. DETAILED DESCRIPTION

[0031] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0033] Embodiment 1

[0034] like Figure 1As shown, the utility model provides an infrared heating device, comprising an infrared emitting tube 100 and a cooling member 200. An infrared emitting portion 110 is provided at the bottom of the infrared emitting tube 100, and infrared emitting is used to emit infrared light. The cooling member 200 is provided at the top of the infrared emitting tube 100 and connected to the infrared emitting tube 100, and the cooling member 200 is provided with a cooling air duct 210 communicated with the infrared emitting tube 100.

[0035] That is, the infrared heating device provided by the utility model emits infrared light to the parts to be dried through the infrared emitting part 110 at the bottom of the infrared emitting tube 100, heats the parts to be dried by infrared radiation, shortens the energy transmission path, and improves the energy conversion efficiency. At the same time, the infrared emitting tube 100 is cooled by the cooling air duct 210 to avoid overheating damage, thereby solving the technical problems of the hot air heating of the hot air oven in the prior art, such as the long energy transmission path and the low energy conversion rate, saving energy and increasing efficiency, and reducing the overall cost.

[0036] Specifically, the infrared emitting tube 100 is set as an infrared lamp tube, and its model can be a single-tube infrared lamp tube or an infrared tube, which is straight and long as a whole. The top of the infrared emitting tube 100 has an infrared emitting part 110, which can emit infrared light. The cooling air duct 210 is arranged inside the cooling member 200 and fixed on the top of the infrared emitting tube 100. Thus, cold air can be delivered to the back of the infrared emitting tube 100 through the cold air channel to cool it down, avoid overheating of the back of the device, which may cause damage to it and reduce the risk of fire.

[0037] Furthermore, the cooling member 200 is arranged along the extension direction of the infrared emitting tube 100, and the cooling air duct 210 is arranged inside the cooling member 200 along the extension direction of the cooling member 200. An air inlet 220 is arranged at one end of the cooling air duct 210, and the air inlet 220 is used to connect to a cold air source.

[0038] Specifically, the cooling element 200 can be configured to be made of a metal square tube, which is arranged in parallel with the infrared emitting tube 100. The cooling air duct 210 is the central hole of the metal square tube, and one end of the cooling element 200 is sealed, and the other end is provided with an air inlet 220, which can be connected to a cold air source such as an external compressor through a pipeline, so that cold air can be transported into the cooling element 200 through the cold air source, thereby enabling the cooling element 200 to reduce the temperature of the back of the infrared emitting tube 100.

[0039] like Figure 2 As shown, a cold air hole 230 is provided at the bottom of the cooling member 200 , and the cold air hole 230 is arranged toward the infrared emitting tube 100 .

[0040] Specifically, the cold air hole 230 can be set as a circular hole or a long slot hole, which is set at the bottom of the cooling member 200. In this way, the cooling gas can be guided to the infrared emitting tube 100, thereby cooling the infrared emitting tube 100.

[0041] Preferably, the plurality of cold air holes 230 are evenly arranged along the extending direction of the infrared emitting tube 100 .

[0042] Specifically, in this embodiment, the cold air holes 230 are set as circular holes. Several cold air holes 230 are evenly arranged along the extension direction of the infrared emitting tube 100 to ensure the uniformity of the infrared emitting tube 100 during cooling and avoid local overheating of the infrared emitting tube 100. The number and size of the cold air holes 230 can be set according to actual use requirements, and this embodiment does not make too many restrictions.

[0043] Furthermore, the infrared heating device further comprises a clamping member 500 , the top of the clamping member 500 is connected to the protective cover 300 or the cooling member 200 , and the bottom of the clamping member 500 is detachably connected to the infrared emitting tube 100 .

[0044] Specifically, the clamping member 500 is made of a metal material, and can be provided with two clips that can be connected to each other, and the infrared emitting tube 100 is clamped and fixed between the clips. The top of the clamping member 500 can be connected to the cooling member 200 by bolts. In order to ensure the fixing stability of the infrared emitting tube 100, two clamping members 500 can be provided, which are respectively fixed on the two ends of the infrared emitting tube 100 and clamped and connected with the infrared emitting tube 100.

[0045] Embodiment 2

[0046] The difference between the infrared heating device provided in this embodiment and the infrared heating device in the first embodiment is that the infrared heating device provided in this embodiment further includes a protective cover 300. Therefore, the same parts as those in the first embodiment will not be described in detail in this embodiment.

[0047] like Figure 3 and Figure 4 As shown, in the infrared heating device provided in this embodiment, the protective cover 300 is arranged along the extension direction of the infrared emitting tube 100, the back side of the protective cover 300 is connected to the cooling member 200, the inner side of the protective cover 300 is opened, and the infrared emitting tube 100 is arranged in the protective cover 300.

[0048] Specifically, the protective cover 300 is in the shape of a long strip as a whole, and its material can be made of aluminum profile. The back side of the protective cover 300 is connected to the cooling member 200 by bolts, and its cross section is set to be semicircular, and the infrared emitting tube 100 is set in the protective cover 300. The inner side of the protective cover 300 is set to open downward so that the infrared light emitted by the infrared emitting tube 100 can irradiate the parts to be dried from the open end of the protective cover 300. In this way, the exposed infrared emitting tube 100 can be protected by the protective cover 300 to prevent the staff from accidentally touching the infrared emitting tube 100 and getting burned.

[0049] Furthermore, the protective cover 300 includes two reflective walls 310 , the cross-sections of the two reflective walls 310 are arc-shaped, the two reflective walls 310 are connected to each other, and the two reflective walls 310 surround a guide cavity 320 , and the infrared emitting tube 100 is disposed in the guide cavity 320 .

[0050] Specifically, the reflective wall 310 is provided as an arc-shaped thin plate, and two reflective walls 310 are arranged oppositely and connected, thus forming a guide cavity 320 with a cross section approximately semicircular. The shape of the guide cavity 320 can be designed through optical simulation, so that the infrared light emitted by the infrared emitting tube 100 can be further focused on the parts to be dried through the reflection of the guide cavity 320, thereby improving the drying efficiency of the infrared emitting tube 100.

[0051] Furthermore, the infrared heating device also includes a stabilizing connector 400 , which is respectively arranged at both ends of the protective cover 300 , the upper part of the stabilizing connector 400 is connected to the protective cover 300 , and the lower part of the stabilizing connector 400 is connected to the cooling member 200 .

[0052] Specifically, the stable connector 400 is made of a metal plate, the upper part of which is connected to the cooling member 200 by bolts, and the lower part of which is connected to the protective cover 300 by bolts or connectors. Two stable connectors 400 are provided, which are respectively arranged at both ends of the protective cover 300. In this way, the cooling member 200 and the infrared emitting tube 100 can be stably connected by the stable connector 400 to avoid loose connection. A through hole is also provided on the stable connector 400 to facilitate the connection of the air inlet 220 with the cold air source. Other mounting holes may also be provided on the stable connector 400 to facilitate the connection of the entire infrared heating device with other components in the drying equipment and the fixation of the infrared heating device.

[0053] Embodiment 3

[0054] Another aspect of the present invention provides a drying device, which includes all the features of the above-mentioned infrared heating device and has all the advantages of the above-mentioned infrared heating device compared with the prior art, which will not be described in detail here.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An infrared heating device, characterized in that: include: An infrared emitting tube (100), wherein an infrared emitting portion (110) is provided at the bottom of the infrared emitting tube (100), and the infrared emitting portion is used to emit infrared light; A cooling member (200), wherein the cooling member (200) is disposed on the top of the infrared emitting tube (100) and is connected to the infrared emitting tube (100), and the cooling member (200) is provided with a cooling air duct (210) connected to the infrared emitting tube (100).

2. The infrared heating device according to claim 1, characterized in that: The cooling element (200) is arranged along the extension direction of the infrared emitting tube (100), and the cooling air duct (210) is arranged inside the cooling element (200) along the extension direction of the cooling element (200). An air inlet (220) is arranged at one end of the cooling air duct (210), and the air inlet (220) is used to connect to a cold air source.

3. The infrared heating device according to claim 2, characterized in that: The cooling element (200) is provided with a cold air hole (230) at the bottom, and the cold air hole (230) is arranged towards the infrared emitting tube (100).

4. The infrared heating device according to claim 3, characterized in that: The plurality of cold air holes (230) are evenly arranged along the extension direction of the infrared emitting tube (100).

5. The infrared heating device according to any one of claims 1 to 4, characterized in that: The infrared heating device further comprises a protective cover (300), wherein the protective cover (300) is arranged along the extension direction of the infrared emitting tube (100), the back side of the protective cover (300) is connected to the cooling element (200), the inner side of the protective cover (300) is opened, and the infrared emitting tube (100) is arranged in the protective cover (300).

6. The infrared heating device according to claim 5, characterized in that: The protective cover (300) comprises two reflective walls (310), the cross section of the reflective walls (310) is arc-shaped, the two reflective walls (310) are connected to each other to form a guide cavity (320), and the infrared emitting tube (100) is arranged in the guide cavity (320).

7. The infrared heating device according to claim 5, characterized in that: The infrared heating device also includes a stabilizing connector (400), which is respectively arranged at both ends of the protective cover (300), the upper part of the stabilizing connector (400) is connected to the protective cover (300), and the lower part of the stabilizing connector (400) is connected to the cooling member (200).

8. The infrared heating device according to claim 5, characterized in that: The infrared heating device further comprises a clamping member (500), the top of the clamping member (500) being connected to the protective cover (300) or the cooling member (200), and the bottom of the clamping member (500) being detachably connected to the infrared emitting tube (100).

9. A drying device, characterized in that: It comprises the infrared heating device as described in any one of claims 1 to 8.

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