Pole piece coating oven

Abstract

The utility model belongs to the field of battery preparation, and particularly relates to a pole piece coating oven which comprises an oven body, and an air inlet is formed in one side of the oven body; a filtering device is arranged at the air inlet, and a monitoring device is arranged in the drying oven body. According to the technical scheme, through the filter screen and the activated carbon, the dust content and humidity of inlet gas can be effectively reduced. Meanwhile, a monitoring device is arranged in the drying oven body, and a dust monitor and a humidity monitor can be selected, so that the humidity and the dust content of inlet gas of the drying oven in the drying process of the pole pieces can be detected and regulated, and the situation that whether an activated carbon layer needs to be replaced or not is judged through experience is avoided; therefore, the problem of pole piece pollution caused by waste of the activated carbon layer or untimely discovery of damage of the activated carbon layer is solved.

Description

Technical Field

[0001] The utility model belongs to the field of battery preparation, and particularly relates to a pole piece coating oven. Background Art

[0002] A lithium-ion battery coater is a common device in the process of manufacturing lithium-ion batteries. When coating a lithium-ion battery coater in the prior art, a filter screen / cotton is used to filter dust at the air inlet to prevent particulate dust from entering the incoming air. Once some particulate dust enters the coating oven, the pole piece is extremely likely to be contaminated and defective. At the same time, the drying humidity will also affect the quality of the pole piece.

[0003] CN204051345U discloses an electronic air purification device for the oven of a lithium-ion battery coater, and electronic air purification devices are respectively installed at the air inlet and the air return opening of the oven of the lithium-ion battery coater. It can completely remove tiny particles in the air. When coating, the pole piece is not contaminated by particulate dust, the consistency of the battery can be improved, secondary pollution of the pole piece can be avoided, and the battery life can be prolonged. However, this patent only relates to purification and does not involve detection.

[0004] CN206064785U discloses a filter alarm device for the air inlet of a coater oven, including a return air duct, a backing plate, a pressing frame, an air volume adjusting plate, a pneumatic switch and a filter screen; the pressing frame is connected to the return air duct through the backing plate to form a space, and a movable air volume adjusting plate is arranged in this space to adjust the size of the incoming air volume; a pneumatic switch is arranged near the air inlet to monitor the air pressure at the air inlet in real time. The filter screen is attached to the top surface of the pressing frame to provide an air inlet channel; if the air inlet is blocked, the pneumatic switch can immediately monitor that the air pressure at the air inlet is too high and alarm, so as to remind to move the air volume adjusting plate outward or clean the filter screen to supplement the incoming air volume. The air volume adjusting plate of this device can adjust the size of the incoming air volume; the pneumatic switch can monitor the air pressure at the air inlet in real time and detect that the air inlet is blocked.

[0005] The oven of the device of CN218309074 only focuses on the treatment of waste gas discharge, and does not consider the corresponding detection and corresponding treatment of gas humidity and dust content during air intake. At present, the air inlet of the oven of the coater either has no protection or only has a layer of filter screen, lacking the detection and regulation of the incoming gas. The humidity of the atmospheric environment will directly affect the drying efficiency and effect, and the dust will directly affect the quality of the pole piece and the performance of the battery.

[0006] However, the above technologies all lack the monitoring of the filtering effect of the air inlet. It is often necessary to judge whether to replace the filter cotton through experience, which may cause waste of the filter cotton or failure to detect the damage of the filter cotton in time, resulting in pole piece pollution. Summary of the Utility Model

[0007] The purpose of the present utility model is to overcome the defects in the prior art and provide a pole piece coating oven.

[0008] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0009] A pole piece coating oven includes an oven body, and an air inlet is arranged on one side of the oven body; a filtering device is arranged at the air inlet, and a monitoring device is arranged in the oven body. The monitoring device includes a dust monitor and / or a humidity monitor.

[0010] The filtering device includes a filter net.

[0011] The filter net is composed of two correspondingly arranged pieces, and an activated carbon layer is arranged between the two filter nets.

[0012] The monitoring device is arranged in the oven body through a slide rail unit; the slide rail unit includes an X-shaped slide rail and a Y-shaped slide rail perpendicular to the X-shaped slide rail; a slider matching the X-shaped slide rail is arranged at the bottom of the Y-shaped slide rail; a connecting groove for installing the monitoring device is arranged at the upper part of the Y-shaped slide rail.

[0013] The length of the X-shaped slide rail is greater than 1 / 2 of the length of the oven body; the length of the Y-shaped slide rail is greater than 2 / 3 of the height of the oven body.

[0014] A connecting groove slide rail is arranged at the upper part of the Y-shaped slide rail; a connecting groove slider matching the connecting groove slide rail is arranged at the bottom of the connecting groove, and a connecting groove is arranged in the connecting groove slider.

[0015] Two Y-shaped slide rails are correspondingly arranged for each X-shaped slide rail.

[0016] There are two slide rail units, which are arranged on the inner walls on both sides of the oven body. A dust detector is arranged in the connecting grooves of the two Y-shaped guide rails on one inner wall, and a humidity detector is arranged in the connecting grooves of the two Y-shaped guide rails on the other inner wall.

[0017] There are two dust monitors and two humidity monitors respectively. They are independently arranged in the length direction at positions less than 1 / 2 and greater than 1 / 2 of the length of the oven body from the air inlet.

[0018] The dust monitors and the humidity monitors are independently arranged in the length direction at 1 / 4 and 3 / 4 of the length of the oven body from the air inlet respectively, and are independently arranged in the width direction at 1 / 2 of the height of the oven body.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] The technical solution of this application can effectively reduce the dust content and humidity of the intake gas through the filter screen and activated carbon. At the same time, a monitoring device is provided inside the oven body, optionally a dust monitor and a humidity monitor, so that the humidity and dust content of the intake gas of the oven during the drying process of the electrode sheet can be detected and regulated, avoiding the judgment of whether to replace the activated carbon layer based on experience, resulting in waste of the activated carbon layer or untimely discovery of damage to the activated carbon layer leading to the problem of electrode sheet contamination. In addition, the real-time monitoring of the dust monitor and humidity monitor allows us to operate the fan at the best power under permitted conditions, improving the drying efficiency of the electrode sheet.

[0021] As a preferred form thereof, by limiting the installation positions of the dust monitor and the humidity monitor, the distribution of dust and moisture in the intake gas after passing through the filter screen and the activated carbon adsorbed on the inner surface can be better grasped, avoiding partial damage to the filter screen or the activated carbon layer resulting in incomplete detection. Brief Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the electrode sheet coating oven according to the embodiment of the present utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the slide rail unit according to the embodiment of the present utility model;

[0024] In the figure, filter screen 1, activated carbon layer 2, X-shaped slide rail 3, Y-shaped slide rail 4, dust monitor 5, humidity monitor 6, oven body 7. Detailed Embodiment

[0025] In order to enable those skilled in the art of this technical field to better understand the technical solution of the present utility model, the present utility model will be further described in detail below with reference to the drawings and the best embodiments.

[0026] Figure 1-2Disclosed is a pole piece coating oven, which includes an oven body 7, and an air inlet is provided on one side of the oven body; a filtering device is provided at the air inlet, and a monitoring device is provided inside the oven body. The monitoring device includes a dust monitor 5 and a humidity monitor 6. The humidity monitor 6 can be any high-temperature resistant humidity sensor in the prior art, such as the high-temperature type 4-20mA single humidity sensor provided by Kelsi Measurement and Control; the dust monitor can be any high-temperature resistant dust sensor in the prior art, such as the LY-FC2000 type dust monitor provided by Lanyu Environmental Protection; it can also adopt an integrated dust detector and humidity detector, such as the air quality sensor provided by Bidas IoT. The built-in sensor probe and temperature and humidity probe can monitor dust and temperature and humidity. The monitoring device is connected to a display device provided outside the oven body to display the values of humidity or / and dust, so as to judge whether the activated carbon layer needs to be replaced according to the displayed values.

[0027] The filtering device includes a filter net 1. As one form, the filter net 1 is two correspondingly arranged pieces, and an activated carbon layer 2 is arranged inside the two filter nets; the activated carbon layer 2 can be 1 layer or multiple layers, which can be adjusted according to needs.

[0028] As one form, the monitoring device is arranged inside the oven body through a slide rail unit; the slide rail unit ( Figure 2 shown) includes an X-shaped slide rail 3 and a Y-shaped slide rail 4 perpendicular to the X slide rail; a slider matching the X-shaped slide rail is arranged at the bottom of the Y-shaped slide rail, so that it can move left and right along the length direction of the drying body on the X-shaped slide rail; a connecting groove for installing the monitoring device is arranged at the upper part of the Y-shaped slide rail.

[0029] As the preferred form, a connecting groove slide rail is arranged at the upper part of the Y-shaped slide rail; a connecting groove slider matching the connecting groove slide rail is arranged at the bottom of the connecting groove; as one form, the monitoring device can be directly fixed on the connecting groove slider; as another form, a connecting groove can be arranged inside the connecting groove slider for installing the monitoring device, so that the detection device can move in the height direction of the oven body.

[0030] Two Y-shaped slide rails are correspondingly arranged for each X-shaped slide rail ( Figure 2 shown). In order to better monitor the dust and humidity inside the oven body, the length of the X-shaped slide rail is at least greater than 1 / 2 of the length of the oven body; the length of the Y-shaped slide rail is greater than 2 / 3 of the height of the oven body.

[0031] There are two slide rail units, which are arranged on the inner walls on both sides of the oven body. A dust detector is arranged in the connecting grooves of the two Y-shaped guide rails on one inner wallFigure 2 As shown, humidity detectors are provided in the connection slots of the two Y-shaped guide rails on the inner wall of the other side.

[0032] The slide rail unit can adopt the slide rails in the prior art, such as the automatic XY-axis linear ball guide type slide table provided by Misumi China Precision Machinery Trading Co., Ltd., or can be assembled by X-shaped slide rails and Y-shaped slide rails, as long as the implementation purpose can be achieved, that is, the Y-shaped slide rail moves on the X-shaped slide rail, and the connection slot slider moves on the Y-shaped slide rail.

[0033] There are two dust monitors and two humidity monitors respectively, which are independently arranged at positions less than 1 / 2 and greater than 1 / 2 of the length of the oven body from the air inlet in the length direction.

[0034] As a preferred form thereof, the dust monitor and the humidity monitor are independently arranged at 1 / 4 and 3 / 4 of the length of the oven body from the air inlet in the length direction respectively, and are independently arranged at 1 / 2 of the height of the oven body in the width direction respectively.

[0035] The implementation process of the present utility model is as follows: Before working, first install the slide rail unit on the left and right sides of the oven body. Determine the installation position of the monitoring device according to the process requirements of moisture first, and then adjust the installation position of the monitoring device through the position of the Y-shaped guide rail on the X-shaped guide rail and the position of the connection slot slider on the Y-shaped guide rail. When air enters the air inlet of the oven, first filter out the dust through the filter screen 2. Then filter out the moisture through the activated carbon layer 3. Obtain data through the display device connected to the monitoring device. Finally, further adjust the thickness or number of layers of the filter screen and the activated carbon layer according to the detection results. For example, if there is too much dust, the thickness of the single-layer activated carbon layer can be increased or multiple layers of activated carbon layers can be stacked so that the dust in the oven body can meet the required standards.

[0036] In summary, the technical solution of the present application can effectively reduce the dust content and humidity of the inlet gas through the filter screen and the activated carbon. At the same time, monitoring devices are provided in the oven body, optionally dust monitors and humidity monitors, so that the humidity and dust content of the inlet gas of the oven during the drying process of the pole piece can be detected and regulated, avoiding the judgment of whether to replace the activated carbon layer by experience, resulting in waste of the activated carbon layer or untimely discovery of damage to the activated carbon layer leading to pole piece contamination problems. In addition, the real-time monitoring of the dust monitor and the humidity monitor allows us to operate the fan at the best power under permitted conditions, improving the drying efficiency of the pole piece.

[0037] The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manners and application scopes. The content of this specification should not be construed as a limitation on the present utility model.

Claims

1. A pole piece coating oven, characterized in that, It includes an oven body, and an air inlet is provided on one side of the oven body; a filtering device is provided at the air inlet, and a monitoring device is provided inside the oven body; the monitoring device includes a dust monitor and / or a humidity monitor; The filtering device includes a filter screen; The filter screen consists of two correspondingly arranged pieces, and an activated carbon layer is provided inside the two filter screens.

2. The pole piece coating oven according to claim 1, characterized in that, The monitoring device is arranged inside the oven body through a slide rail unit; the slide rail unit includes an X-shaped slide rail and a Y-shaped slide rail vertically arranged with respect to the X-shaped slide rail; a slider matching the X-shaped slide rail is provided at the bottom of the Y-shaped slide rail; a connection groove for installing the monitoring device is provided at the upper part of the Y-shaped slide rail.

3. The pole piece coating oven according to claim 2, wherein, The length of the X-shaped slide rail is greater than 1 / 2 of the length of the oven body; the length of the Y-shaped slide rail is greater than 2 / 3 of the height of the oven body.

4. The pole piece coating oven according to claim 2, characterized in that, A connection groove slide rail is provided at the upper part of the Y-shaped slide rail; a connection groove slider matching the connection groove slide rail is provided at the bottom of the connection groove, and a connection groove is provided inside the connection groove slider.

5. The pole piece coating oven according to claim 2, characterized in that, Two Y-shaped slide rails are correspondingly provided for each X-shaped slide rail.

6. The pole piece coating oven according to claim 5, characterized in that, There are two slide rail units, which are arranged on the inner walls on both sides of the oven body. A dust detector is provided in the connection grooves of the two Y-shaped guide rails on one inner wall, and a humidity detector is provided in the connection grooves of the two Y-shaped guide rails on the other inner wall.

7. The pole piece coating oven according to claim 6, characterized in that, There are two dust monitors and two humidity monitors respectively. They are independently arranged at positions less than 1 / 2 and greater than 1 / 2 of the length of the oven body from the air inlet in the length direction.

8. The pole piece coating oven according to claim 7, characterized in that, The dust monitors and the humidity monitors are independently arranged at positions 1 / 4 and 3 / 4 of the length of the oven body from the air inlet in the length direction respectively, and are independently arranged at 1 / 2 of the height of the oven body in the width direction.

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