Nitrogen replacement box for battery processing

Abstract

The utility model relates to the technical field of mechanical conveying equipment, in particular to a nitrogen replacement box for battery processing, which comprises a box body, a cavity is arranged in the box body, an air discharge pipe and a nitrogen injection pipe are arranged at the upper end of the box body, and both the air discharge pipe and the nitrogen injection pipe are communicated with the cavity. The air exhaust pipe and the nitrogen injection pipe are arranged on the box body, when the outlet of the tray is closed, air in the box body can be exhausted through the air exhaust pipe, and nitrogen is injected into the box body through the nitrogen injection pipe, so that the air content in the box body is reduced; the content proportion of water-containing air in gas entering from the tray inlet is reduced; and the height of the pipe orifice of the air exhaust pipe is higher than that of the pipe orifice of the nitrogen injection pipe, so that the air exhaust effect of the air exhaust pipe can be improved, and the effect of rapidly filling the box body with nitrogen can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical conveying equipment, in particular to a nitrogen replacement box for battery processing. Background Art

[0002] During the battery processing process, electrolyte will remain on the tray where the batteries are placed. Therefore, the electrolyte on the tray needs to be cleaned before it can be put back into use. However, when the tray is removed from the battery processing station, outside air often enters the battery processing station, and moisture will affect the processing quality of the battery.

[0003] However, the existing technology for switching battery tray stations does not pay attention to the problem of moisture infiltration. Most of them set automatic sealing doors at the entrance of the tray channel, but only reduce the amount of air entering by increasing the speed of the tray in and out. However, it still cannot avoid the entry of moisture, affecting the processing quality of the battery in the battery processing station.

[0004] Therefore, a nitrogen replacement box for battery processing is proposed to solve the above-mentioned problems. Utility Model Content

[0005] Technical problems solved

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a nitrogen replacement box for battery processing, which can effectively solve the problem in the prior art that air enters the battery processing station when the pallet is transferred between stations and affects the battery processing quality.

[0007] Technical Solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] The utility model provides a nitrogen replacement box for battery processing, comprising a box body, a cavity provided inside the box body, and an air exhaust pipe and a nitrogen injection pipe provided at the upper end of the box body, and both the air exhaust pipe and the nitrogen injection pipe are communicated with the cavity; wherein, a tray inlet is provided on one end surface of the box body, and a tray outlet is provided on the other end surface thereof, and the tray inlet is communicated with the tray outlet through a transmission structure located inside the box body, and the height of the pipe opening of the air exhaust pipe is higher than the height of the pipe opening of the nitrogen injection pipe.

[0010] Furthermore, the transmission structure includes a transmission belt arranged in the box body, and two transmission belts are provided and distributed in parallel, and the transmission directions of the two transmission belts are arranged opposite to the tray entrance.

[0011] Furthermore, an observation window is hinged on the side end surface of the box body, and the observation window is arranged opposite to the tray entrance.

[0012] Furthermore, a sealed door that can be lifted up and down is provided at the tray outlet.

[0013] Furthermore, the tray entrance is communicated with the interior of the box body, and its height is higher than that of the tray exit.

[0014] Furthermore, the tray entrance is arranged at the front end or the rear end of the box body, and the tray exit is arranged at the side end of the box body.

[0015] Furthermore, a movable plate that can be lifted up and down is provided in the box body, the transmission belt is arranged at the upper end of the movable plate, and two parallel reversing belts are also arranged in the box body, the two reversing belts are located on both sides of the movable plate and are arranged toward the tray outlet.

[0016] Furthermore, a safety valve is provided at the upper end of the box.

[0017] Furthermore, a dew point meter is provided at the upper end of the box.

[0018] Furthermore, a pressure gauge is provided at the upper end of the box.

[0019] Beneficial effects

[0020] Compared with the known public technologies, the technical solution provided by this utility model has the following beneficial effects:

[0021] The utility model provides an air exhaust pipe and a nitrogen injection pipe on the box body. When the tray outlet is closed, the air in the box body is extracted by the air exhaust pipe, and nitrogen is injected into the box body through the nitrogen injection pipe, thereby reducing the air content in the box body and reducing the proportion of water-containing air in the gas entering from the tray inlet.

[0022] By making the height of the nozzle of the air exhaust pipe higher than the height of the nozzle of the nitrogen injection pipe, the air exhaust effect of the air exhaust pipe and the effect of quickly filling the box with nitrogen can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2This is a schematic diagram of a partial cross-section of the overall structure (without a tray) in an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of a partial cross-section of the overall structure (with a tray) in an embodiment of the present utility model;

[0027] Figure 4 This is a side view of the overall structure of the embodiment of the utility model;

[0028] Figure 5 This is a schematic diagram of the sealing door structure in an embodiment of the present utility model.

[0029] The numbers in the figure represent: 1. Box body; 10. Observation window; 11. Cavity; 111. Transmission belt; 12. Movable plate; 13. Reversing belt; 2. Air exhaust pipe; 3. Nitrogen injection pipe; 4. Pallet inlet; 5. Pallet outlet; 6. Safety valve; 7. Dew point meter; 8. Pressure gauge; 9. Sealing door. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0031] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" 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 components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "left," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0034] The present invention will be further described below with reference to the embodiments.

[0035] Example:

[0036] This case proposes a nitrogen replacement box for battery processing, see the attached Figure 1-5 It mainly includes a box body 1, a cavity 11 is provided inside the box body 1, and an air exhaust pipe 2 and a nitrogen injection pipe 3 are provided at the upper end of the box body 1. The top pipe mouth of the air exhaust pipe 2 is provided with an air intake main valve, and the pipe mouth is connected to an air pump (not shown in the figure). The air inside the box body 1 is extracted by the air pump. A quick replacement valve and a fine-tuning replacement valve are also provided on the air exhaust pipe 2, which are well-known technologies and will not be described in detail here.

[0037] The upper end of the nitrogen injection pipe 3 is connected to the nitrogen tank and is provided with an air pump, which can inject the nitrogen in the nitrogen tank into the interior of the box body 1. A pressure relief valve is provided on the nitrogen injection pipe 3. The connection between the air pump and the nitrogen tank is a well-known technology and will not be described in detail here and is not shown in the figure.

[0038] The air exhaust pipe 2 and the nitrogen injection pipe 3 are both connected to the cavity 11, wherein a pallet inlet 4 is provided on one end face of the box body 1, and the end face is connected to the battery processing station. The pallet will enter the interior of the box body 1 from the battery processing station through the pallet inlet 4. A pallet outlet 5 is provided on the other end face thereof, and the pallet outlet 5 can be connected to the pallet cleaning station. The pallet cleaning equipment is a well-known technology and will not be described in detail here and is not shown in the figure.

[0039] The tray inlet 4 is connected to the tray outlet 5 through a transmission structure located inside the box body 1. In this case, in order to prevent the air at the tray outlet 5 from entering the box body 1, when the tray entering through the tray inlet 4 enters the box body 1 and then leaves from the tray outlet 5, the outside air will enter the inside of the box body 1 through the tray outlet 5, so that the air in the box body 1 can be extracted through the air exhaust pipe 2, and then nitrogen can be injected into the box body 1 through the nitrogen injection pipe 3 to reduce the moisture value (dew point value) inside the box body 1.

[0040] It is worth noting that in this case, the height of the mouth of the air exhaust pipe 2 is higher than the height of the mouth of the nitrogen injection pipe 3, and the nitrogen injection pipe 3 is arranged on the side away from the tray inlet 4. The air outlet extending into the interior of the box body 1 can allow nitrogen to be injected from bottom to top, and the setting position of the nitrogen injection pipe 3 is far away from the tray inlet 4, so that the interior of the box body 1 can be filled with nitrogen from the side away from the tray inlet 4, and the mouth of the air exhaust pipe 2 is close to the tray inlet 4, where the amount of air entering is large, so that the air exhaust pipe 2 can better extract the air.

[0041] In this case, the transmission structure includes a transmission belt 111 arranged in the box body 1. Two transmission belts 111 are provided and distributed in parallel, and the transmission directions of the two transmission belts 111 are arranged opposite to the tray entrance 4.

[0042] Furthermore, in order to prevent the pallet from being misaligned or stuck when being transmitted inside the box body 1, an observation window 10 is hinged on the side end face of the box body 1. The observation window 10 is arranged opposite to the pallet entrance 4 to facilitate real-time observation by the staff.

[0043] Furthermore, a sealed door 9 that can be raised and lowered is provided at the tray outlet 5. When the tray is transmitted on the transmission belt 111, the sealed door 9 opens. When the tray leaves the sealed door 9, the air at this time will enter the box body 1 through the sealed door 9. After closing the sealed door 9, the air exhaust pipe 2 extracts the air inside the box body 1 and fills the box body 1 with nitrogen through the nitrogen injection pipe 3, thereby reducing the air density inside the box body 1, thereby preventing moisture inside the air from entering the battery processing station through the tray inlet 4 and affecting the processing quality of the battery.

[0044] It is worth noting that the pallet entrance 5 is connected to the interior of the box body 1, and its height is higher than the pallet exit 5. The pallet entrance 4 is set at the front end of the box body 1, and it can also be set at the rear end. There is no specific limitation here. The pallet exit 5 is set at the side end of the box body 1.

[0045] A movable plate 12 that can be lifted up and down is provided in the box body 1, and a transmission belt 111 is provided at the upper end of the movable plate 12. Two parallel reversing belts 13 are also provided in the box body 1. The two reversing belts 13 are located on both sides of the movable plate 12 and are arranged toward the pallet outlet 5. When the pallet reaches the transmission belt 111, the movable plate 12 descends, and the height of the reversing belt 13 is level with the pallet outlet 3. When the movable plate 4 descends, the pallet on the transmission belt 42 will "ride" on the reversing belt 13. At this time, the reversing belt 13 starts to transmit, and the pallet is transferred out of the box body 1 through the pallet outlet 3.

[0046] It is worth noting that in this case, a safety valve 6 is provided at the upper end of the box body 1. When the internal pressure of the box body 1 is too high, the safety valve 6 can release the internal pressure of the box body 1 to avoid safety hazards.

[0047] A dew point meter 7 for detecting the dew point value inside the box 1 is provided at the upper end of the box 1. In practice, the dew point value inside the box 1 is ensured to be around -40°C.

[0048] A pressure gauge 8 is provided at the upper end of the box body 1 for monitoring the real-time pressure value inside the box body 1 .

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A nitrogen replacement box for battery processing, characterized in that: The invention comprises a box body (1), wherein a cavity (11) is provided inside the box body (1), and an air exhaust pipe (2) and a nitrogen injection pipe (3) are provided at the upper end of the box body (1), and the air exhaust pipe (2) and the nitrogen injection pipe (3) are both in communication with the cavity (11); A tray inlet (4) is provided on one end surface of the box body (1), and a tray outlet (5) is provided on the other end surface thereof, and the tray inlet (4) is connected to the tray outlet (5) via a transmission structure located inside the box body (1), and the height of the nozzle of the air exhaust pipe (2) is higher than the height of the nozzle of the nitrogen injection pipe (3).

2. A nitrogen replacement box for battery processing according to claim 1, characterized in that: The transmission structure comprises a transmission belt (111) arranged in the box body (1), wherein two transmission belts (111) are provided and distributed in parallel, and the transmission directions of the two transmission belts (111) are arranged opposite to the tray entrance (4).

3. A nitrogen replacement box for battery processing according to claim 2, characterized in that: An observation window (10) is hinged on the side end surface of the box body (1), and the observation window (10) is arranged opposite to the tray entrance (4).

4. A nitrogen replacement box for battery processing according to claim 3, characterized in that: A sealing door (9) that can be lifted up and down is provided at the tray outlet (5).

5. A nitrogen replacement box for battery processing according to claim 4, characterized in that: The tray entrance (4) is communicated with the interior of the box (1), and its height is higher than that of the tray exit (5).

6. A nitrogen replacement box for battery processing according to claim 5, characterized in that: The tray inlet (4) is arranged at the front end or the rear end of the box body (1), and the tray outlet (5) is arranged at the side end of the box body (1).

7. A nitrogen replacement box for battery processing according to claim 6, characterized in that: A movable plate (12) capable of being raised and lowered is provided in the box body (1), the transmission belt (111) is provided at the upper end of the movable plate (12), and two parallel reversing belts (13) are also provided in the box body (1). The two reversing belts (13) are located on both sides of the movable plate (12) and are arranged toward the tray outlet (5).

8. The nitrogen replacement box for battery processing according to claim 1, characterized in that: A safety valve (6) is provided at the upper end of the box body (1).

9. The nitrogen replacement box for battery processing according to claim 1, characterized in that: A dew point meter (7) is provided at the upper end of the box (1).

10. A nitrogen replacement box for battery processing according to claim 1, characterized in that: A pressure gauge (8) is provided at the upper end of the box (1).

Images