Drying oven heating device and coating equipment

Abstract

The utility model discloses an oven heating device and coating equipment. The oven heating device comprises a shell, a controller and a temperature sensor, a cavity is formed in the shell, a first heating pipe set and a second heating pipe set are arranged in the cavity and electrically connected with the controller, a temperature sensor is arranged in the cavity, and the temperature sensor is suitable for detecting temperature parameters in the cavity and feeding back the temperature parameters to the controller. The controller controls the first heating pipe set to heat at constant power, and the controller controls the heating power of the second heating pipe set in real time according to the received temperature parameters. According to the drying oven heating device, through grouping regulation and control over the first heating pipe set and the second heating pipe set, accurate regulation and control over the internal temperature of the cavity are achieved in real time, and under the condition that the coating quality is guaranteed, energy loss is reduced, and the energy utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery coating equipment, in particular to an oven heating device and coating equipment. Background Art

[0002] The oven is an important part of the coating equipment. During the coating process, the air is heated by the oven heating system, and then blown evenly onto the coating through the internal structure of the oven. The design of the nozzle structure allows the hot air to blow onto the coating, heating the coating. The solvent in the coating will evaporate as the temperature rises, and then the evaporated solvent will be carried out of the oven with the airflow.

[0003] Most traditional ovens use electric heating systems. The electric heating power is designed after theoretical design. However, due to the deviation between actual application and theoretical design, the electric heating power will be too high, resulting in high energy consumption and low utilization rate. Utility Model Content

[0004] Therefore, the purpose of the utility model is to provide an oven heating device and a coating device to solve the defects of the prior art that the heating power is too large, the energy consumption is large and the utilization rate is low when the oven is drying.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A heating device for an oven, comprising: a shell, a controller and a temperature sensor; a cavity is provided in the shell, and a first heating tube group and a second heating tube group are provided in the cavity; the first heating tube group and the second heating tube group are both electrically connected to the controller, and the controller is suitable for controlling the first heating tube group to heat with constant power; the temperature sensor is suitable for detecting a temperature parameter of the cavity and feeding it back to the controller, and the controller is suitable for receiving the temperature parameter to adjust the heating power of the second heating tube group.

[0007] According to some embodiments of the present invention, a temperature threshold is provided in the controller. When the temperature in the cavity is lower than the temperature threshold, the second heating tube assembly has a heating state with increased power. When the temperature in the cavity is greater than or equal to the temperature threshold, the second heating tube assembly has a cooling state with reduced power to 0.

[0008] According to some embodiments of the present invention, the first heating tube group and the second heating tube group are arranged vertically in the cavity.

[0009] According to some embodiments of the present invention, both the first heating tube assembly and the second heating tube assembly are finned tubes.

[0010] According to some embodiments of the utility model, an air inlet connected to the cavity is provided at the front end of the shell, a fireproof screen is provided at the air inlet, and the first heating tube group and the second heating tube group are both arranged on one side close to the air inlet.

[0011] According to some embodiments of the utility model, an air outlet communicating with the cavity is provided at the rear end of the shell, and a filter is provided on one side of the cavity close to the air outlet.

[0012] According to some embodiments of the present invention, the filter is made of high-temperature alloy.

[0013] The utility model also provides a coating device, comprising the oven heating device.

[0014] The technical solution of the utility model has the following advantages:

[0015] The oven heating device provided by the utility model has a cavity in the shell, a first heating tube group and a second heating tube group are arranged in the cavity, the first heating tube group and the second heating tube group are both electrically connected to the controller, a temperature sensor is arranged in the cavity, the temperature sensor is suitable for detecting the temperature parameter in the cavity, and the temperature parameter is fed back to the controller, the controller controls the first heating tube group to heat at a constant power, and the controller controls the heating power of the second heating tube group in real time according to the received temperature parameter. The oven heating device realizes real-time precise control of the temperature inside the cavity by grouping and controlling the first heating tube group and the second heating tube group, reduces energy loss and improves energy utilization while ensuring coating quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 It is a schematic diagram of the structure of the oven heating device provided in some embodiments of the utility model;

[0018] Figure 2 It is a cross-sectional view of an oven heating device provided in some embodiments of the utility model;

[0019] Figure 3 It is a left side view of the oven heating device provided in some embodiments of the utility model.

[0020] Explanation of the reference numerals: 1. shell; 2. first heating tube group; 3. second heating tube group; 4. fireproof screen; 5. filter; 11. cavity; 12. air inlet; 13. air outlet. DETAILED DESCRIPTION

[0021] 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.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] Reference Figures 1 to 3 As shown, some embodiments of the present invention provide an oven heating device, comprising: a housing 1, a controller and a temperature sensor; a cavity 11 is provided in the housing 1, and a first heating tube group 2 and a second heating tube group 3 are provided in the cavity 11; the first heating tube group 2 and the second heating tube group 3 are both electrically connected to the controller, and the controller is suitable for controlling the first heating tube group 2 to heat with a constant power; the temperature sensor is suitable for detecting a temperature parameter of the cavity 11 and feeding back to the controller, and the controller is suitable for receiving the temperature parameter to adjust the heating power of the second heating tube group 3.

[0026] Specifically, a cavity 11 is provided in the housing 1, a first heating tube group 2 and a second heating tube group 3 are provided in the cavity 11, the first heating tube group 2 and the second heating tube group 3 are both electrically connected to the controller, a temperature sensor is provided in the cavity 11, the temperature sensor is suitable for detecting the temperature parameter in the cavity 11, and the temperature parameter is fed back to the controller, the controller controls the first heating tube group 2 to heat at a constant power, and the controller controls the heating power of the second heating tube group 3 in real time according to the received temperature parameter. The oven heating device realizes real-time precise control of the temperature inside the cavity 11 by grouping and controlling the first heating tube group 2 and the second heating tube group 3, reduces energy loss and improves energy utilization while ensuring coating quality.

[0027] It is understandable that the controller is an existing controller, the control method is a conventional control method, and this application does not improve the controller program.

[0028] In some embodiments of the present invention, a temperature threshold is set in the controller. When the temperature in the cavity 11 is lower than the temperature threshold, the second heating tube group 3 has a heating state with increased power. When the temperature in the cavity 11 is greater than or equal to the temperature threshold, the second heating tube group 3 has a cooling state with reduced power to 0.

[0029] It is understandable that the temperature threshold value can be set in the controller. After the temperature sensor detects the temperature parameter in the cavity 11, the detected temperature parameter is fed back to the controller. In the oven preheating stage, the controller controls the first heating tube group 2 and the second heating tube group 3 to heat at a power of 40 Hz to quickly preheat the oven. In this stage, the temperature parameter in the cavity 11 is lower than the set temperature threshold. In this stage, the second heating tube group 3 is in a heating state. As time goes by, the temperature in the cavity 11 gradually increases. The temperature parameter is compared with the set temperature threshold. When the temperature parameter is greater than or equal to the temperature threshold, the controller controls the power of the second heating tube group 3 to be gradually reduced to 0, and only the first heating tube group 2 is used for heating. Since a heat circulation system is set in the oven heating, the oven exhaust air volume and the fresh air continue to enter the cavity 11 after heat exchange to heat the first heating tube group 2 and the second heating tube group 3. At this time, the air temperature entering the cavity 11 is higher than the room temperature, so the power required for heating the cavity 11 is reduced. Through the temperature monitoring of the temperature sensor, the closed-loop control of the second heating tube group 3 is realized, the energy utilization rate is improved, the required electricity is reduced, and the cost is saved.

[0030] Reference Figure 3 As shown in some embodiments of the present invention, the first heating tube group 2 and the second heating tube group 3 are arranged vertically in the cavity 11 .

[0031] Specifically, the first heating tube group 2 and the second heating tube group 3 are arranged vertically in the cavity 11. The arrangement structure is compact, which can improve the utilization rate of the space in the cavity 11 and the heating efficiency.

[0032] In some embodiments of the present invention, the first heating tube group 2 and the second heating tube group 3 are both finned tubes.

[0033] Specifically, the use of finned tubes increases the heat transfer area, thereby improving the heat transfer efficiency; and the finned tubes heat up quickly, generate heat evenly, have good heat dissipation performance, and are low in cost.

[0034] Reference Figure 2 and Figure 3 As shown, in some embodiments of the utility model, the front end of the shell 1 is provided with an air inlet 12 connected to the cavity 11, and a fireproof screen 4 is provided at the air inlet 12, and the first heating tube group 2 and the second heating tube group 3 are both arranged close to one side of the air inlet 12.

[0035] Specifically, a fireproof screen 4 is provided on the side close to the air inlet 12 to preliminarily filter the airflow entering the cavity 11 and filter out larger impurities in the airflow to ensure the coating quality.

[0036] In some embodiments of the present invention, an air outlet 13 communicating with the cavity 11 is disposed at the rear end of the housing 1 , and a filter 5 is disposed on one side of the cavity 11 close to the air outlet 13 .

[0037] Specifically, by arranging the filter 5 at the air outlet 13, the airflow is filtered, thereby preventing impurities carried in the airflow from affecting the coating quality.

[0038] In some embodiments of the present invention, the filter 5 is made of high-temperature alloy.

[0039] Specifically, since the temperature of the airflow after passing through the first heating tube group 2 and the second heating tube group 3 is relatively high, the filter 5 is made of a high-temperature alloy material, specifically 304 stainless steel, to avoid corrosion caused by moisture in the airflow.

[0040] The utility model also provides a coating device, comprising the oven heating device.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. An oven heating device, characterized in that: include: A shell (1), wherein a cavity (11) is provided in the shell (1), and a first heating tube group (2) and a second heating tube group (3) are provided in the cavity (11); a controller, the first heating tube assembly (2) and the second heating tube assembly (3) being electrically connected to the controller, the controller being adapted to control the first heating tube assembly (2) to perform heating at a constant power; A temperature sensor, wherein the temperature sensor is adapted to detect a temperature parameter of the cavity (11) and feed back the temperature parameter to the controller, wherein the controller is adapted to receive the temperature parameter so as to adjust the heating power of the second heating tube assembly (3).

2. The oven heating device according to claim 1, characterized in that: A temperature threshold is provided in the controller. When the temperature in the cavity (11) is lower than the temperature threshold, the second heating tube assembly (3) has a heating state with increased power. When the temperature in the cavity (11) is greater than or equal to the temperature threshold, the second heating tube assembly (3) has a cooling state with reduced power to zero.

3. The oven heating device according to claim 1, characterized in that: The first heating tube group (2) and the second heating tube group (3) are arranged vertically in the cavity (11).

4. The oven heating device according to claim 3, characterized in that: The first heating tube group (2) and the second heating tube group (3) are both finned tubes.

5. The oven heating device according to claim 1, characterized in that: The front end of the shell (1) is provided with an air inlet (12) connected to the cavity (11), and a fireproof screen (4) is provided at the air inlet (12). The first heating tube group (2) and the second heating tube group (3) are both arranged on one side close to the air inlet (12).

6. The oven heating device according to claim 1, characterized in that: An air outlet (13) communicating with the cavity (11) is provided at the rear end of the shell (1), and a filter (5) is provided on one side of the cavity (11) close to the air outlet (13).

7. The oven heating device according to claim 6, characterized in that: The filter (5) is made of high-temperature alloy.

8. A coating device, characterized in that: It comprises the oven heating device as described in any one of claims 1 to 7.

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