Cleaning equipment used in battery piece manufacturing process

Abstract

The utility model relates to the technical field of solar cell processing equipment, and discloses cleaning equipment used in a cell manufacturing process, which comprises a first tank body, a second tank body and a liquid conveying device, the liquid conveying device is connected to the bottom of the first tank body and is used for guiding liquid in the first tank body to the second tank body; wherein the liquid conveying device comprises at least one of a spiral flow guide pipe and a step-shaped flow guide pipe, and the cleaning liquid in the first tank body slowly flows into the second tank body through at least one of the spiral flow guide pipe and the step-shaped flow guide pipe so as to reduce the flow impact force of the cleaning liquid. The cleaning equipment used in the battery piece manufacturing process can reduce foam generated when liquid medicine flows back, and liquid medicine oxidation is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar cell processing equipment technical field especially relates to a kind of cleaning equipment for cell piece manufacturing process. BACKGROUND

[0002] In the cell piece manufacturing process, cleaning equipment needs to be used to soak and clean the cell piece, but in the current cell piece cleaning equipment, the cleaning liquid in the soaking tank is generally returned to the temporary tank by overflow or straight flow pipe. When the cleaning liquid is a drug solution prone to foaming, overflow or straight flow pipe returning to the temporary tank can easily cause the drug solution to produce a large amount of foam, affecting the circulation of the drug solution. In addition, the foamed drug solution is prone to dirt, causing secondary pollution of the drug solution. Some drug solutions that are easily oxidized by the drug solution will also increase the oxygen contact area after a large amount of foaming, making the drug solution more prone to oxidation and failure. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a cleaning equipment for the cell piece manufacturing process, which reduces the foam generated during the return of the drug solution and reduces the oxidation and secondary pollution of the drug solution.

[0004] To solve the above technical problems, the utility model provides a cleaning equipment for the cell piece manufacturing process, comprising:

[0005] A first tank body for containing the cell piece to be cleaned and the cleaning liquid;

[0006] A second tank body for containing the cleaning liquid flowing out of the first tank body, the first tank body is arranged above the second tank body;

[0007] A liquid conveying device connected to the bottom of the first tank body for guiding the liquid in the first tank body to the second tank body;

[0008] Wherein, the liquid conveying device comprises at least one of a spiral flow pipe and a stepped flow pipe, the cleaning liquid in the first tank body slowly flows into the second tank body through at least one of the spiral flow pipe and the stepped flow pipe to reduce the flow impact force of the cleaning liquid;

[0009] Wherein, the first tank body further comprises a liquid spraying device arranged opposite to the cell piece to be cleaned, the liquid spraying device is arranged at a position opposite to at least one of the first surface and the second surface of the cell piece to be cleaned, and the liquid spraying device cleans the cell piece to be cleaned by spraying the cleaning liquid.

[0010] The utility model discloses a spiral flow guide pipe, ladder flow guide pipe is arranged in the bottom of first groove body at least one, can return to the temporary storage tank in the first groove body's cleaning liquid through flow guide pipe, under the condition of not changing the dosage and flow of the medicinal liquid (cleaning liquid), slow down the medicinal liquid falling speed, reduce the medicinal liquid falling kinetic energy, reduce the impact of backflow liquid to the medicinal liquid in the temporary storage tank, reduce the contact area of medicinal liquid and oxygen and the oxygen amount mixed in the medicinal liquid, improve the medicinal liquid oxidation resistance, reduce the generation of foam in the temporary storage tank simultaneously, improve the stability of medicinal liquid circulation.

[0011] Optionally, the water outlet end of the spiral flow guide pipe forms an angle of 35-50 degrees with the horizontal direction.

[0012] Optionally, the spiral flow guide pipe is provided with a plurality of circulating spiral pipes, and the gradient of each spiral pipe is 30-55 degrees.

[0013] The utility model discloses a spiral flow guide pipe's water outlet end and horizontal direction are set to form the angle of 35-50 degrees, and the gradient of each spiral pipe is set to 30-55 degrees, can make the liquid (that is medicinal liquid) in spiral pipe keep certain inclination angle and flow down stably, reduce the impact of medicinal liquid flowing out in spiral pipe and medicinal liquid in second groove body simultaneously.

[0014] Optionally, the ladder flow guide pipe comprises at least one straight section and at least two falling sections, the first and last ends of the straight section are connected with the corresponding falling sections, the straight section intersects the connected falling sections, and the angle between the ladder flow guide pipe and the bottom of the first groove body is 30-55 degrees.

[0015] The utility model discloses a liquid delivery device is arranged as a ladder flow guide pipe, and the angle between the ladder flow guide pipe and the bottom of the first groove body is set to 30-55 degrees, so that the impact of medicinal liquid in the second groove body is greatly reduced, the rolling amplitude is reduced, the contact area with oxygen is reduced, the generation of foam is reduced, and the medicinal liquid is prevented from being oxidized.

[0016] Optionally, an extension part is arranged on the upper part of the water outlet end of the liquid delivery device and protrudes towards the end face.

[0017] Optionally, the extension part extends below the liquid level of the cleaning liquid in the second groove body.

[0018] The utility model discloses a liquid delivery device, and the extension part extends below the liquid level of the cleaning liquid in the second groove body, which helps to block the medicinal liquid flowing out of the liquid delivery device from rolling to the liquid level, reduces the probability of contact between the medicinal liquid and oxygen, and reduces the generation of foam.

[0019] Optionally, the extension part is provided with a foam elimination structure that protrudes towards the inner wall of the liquid delivery device.

[0020] The foam eliminating structure is arranged on the inner wall of the liquid conveying device, so that the foam generated during the flowing of the cleaning liquid from the first tank to the second tank can be greatly reduced.

[0021] Optionally, the foam eliminating structure gradually reduces in radial cross-sectional area of the inner wall of the liquid conveying device.

[0022] Optionally, the foam eliminating structure gradually increases in cross-sectional area along the water outlet direction of the liquid conveying device.

[0023] Optionally, the foam eliminating structure is made of porous material.

[0024] The foam eliminating structure made of porous material helps to attract and eliminate the excess bubbles.

[0025] Optionally, the cleaning device further comprises:

[0026] The rolling device is arranged at the position opposite to at least one of the first surface and the second surface of the battery piece to be cleaned, and is used to drive the battery piece to be cleaned to move in the horizontal direction for cleaning.

[0027] The rolling device is arranged at the position opposite to at least one of the first surface and the second surface of the battery piece to be cleaned, and is used to drive the battery piece to be cleaned to move in the horizontal direction for cleaning.

[0028] Optionally, the inner wall of at least one of the spiral-shaped flow guide pipe and the stepped flow guide pipe is provided with a filter assembly for filtering the passing cleaning liquid.

[0029] Optionally, the filter assembly comprises at least one row of filter holes.

[0030] The filter assembly is arranged on the inner wall of at least one of the spiral-shaped flow guide pipe and the stepped flow guide pipe, and the filter holes arranged in a row on the filter assembly can filter the impurities and bubbles contained in the cleaning liquid, so that the cleaning liquid is improved in cleanliness.

[0031] Optionally, the first tank is a soaking tank, and the second tank is a temporary storage tank. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a first embodiment structure schematic view of the cleaning device for the battery piece manufacturing process of the utility model;

[0033] Figure 2is a second embodiment structure schematic view of the cleaning equipment in the battery piece manufacturing process,

[0034] Figure 3 is Figure 1 with Figure 2 is a water outlet structure schematic view of the liquid delivery device,

[0035] Figure 4 is Figure 3 is a end surface structure schematic view,

[0036] Figure 5 is Figure 4 is a structure schematic view of the foam elimination structure on the extension part. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described further in detail below in combination with the drawings.

[0038] As Figure 1 shown, the utility model discloses a kind of cleaning equipment in the battery piece manufacturing process, comprising:

[0039] First groove body, for accommodating battery piece and cleaning liquid to be washed;

[0040] Second groove body, for accommodating cleaning liquid flowing from first groove body, the top of second groove body is provided with first groove body;

[0041] Liquid delivery device, connect to the bottom of first groove body, for guiding liquid of first groove body to second groove body;

[0042] Wherein, liquid delivery device includes at least one of spiral flow guide pipe, stepped flow guide pipe, and cleaning liquid in first groove body slowly flows into second groove body by at least one of spiral flow guide pipe, stepped flow guide pipe to reduce the flow impact force of cleaning liquid;

[0043] Wherein, first groove body is further provided with liquid ejection device being oppositely arranged with battery piece to be washed, liquid ejection device is arranged at the opposite position of at least one surface of first surface, second surface of battery piece to be washed, and liquid ejection device carries out cleaning to battery piece to be washed by spraying cleaning liquid.

[0044] First groove body is soaking tank 1, the soaking tank 1 is equipped with rolling device for conveying battery piece, the rolling device can be set as transmission roller, specifically including upper roller group 4 and lower roller group 5, the top surface (first surface) of battery piece is contacted with upper roller group 4, the bottom surface (second surface) of battery piece is contacted with lower roller group 5, under the joint action of upper roller group 4 and lower roller group 5, battery piece moves along horizontal direction by passing through soaking tank 1.

[0045] It can be understood that the rolling device can also be arranged at the opposite position of at least one of the top surface (the first surface, the light-facing surface of the battery piece) and the bottom surface (the second surface, the back-facing surface of the battery piece) of the battery piece to be cleaned, for example, only the rolling device is arranged at the position opposite to the top surface of the battery piece, or only the rolling device is arranged at the position opposite to the bottom surface of the battery piece, or the rolling device is arranged at the positions opposite to the top surface and the bottom surface of the battery piece at the same time, and the present application does not limit this. In some embodiments, the rolling device can also be arranged as a conveyor belt or a conveyor guide or the like device with a transmission function for driving the battery piece to be cleaned to move in the horizontal direction for cleaning. The moving direction can be from the left side of the first groove body to the right side of the first groove body, or from the right side of the first groove body to the left side of the first groove body, or from the left side of the second groove body to the right side of the second groove body, or from the right side of the second groove body to the left side of the second groove body, and the present application does not limit this. By arranging the rolling device to drive the battery piece to move in the horizontal direction, the cleaning of the battery piece can be more sufficient, and the dirt on the surface of the battery piece caused by incomplete cleaning can be avoided to affect the subsequent preparation process.

[0046] The liquid ejection device is a spray pipe, which at least includes at least one of an upper spray pipe 6 and a lower spray pipe 7. When the top surface of the battery piece needs to be cleaned, the upper spray pipe 6 is arranged at the position opposite to the top surface to clean the battery piece to be cleaned. When the bottom surface of the battery piece needs to be cleaned, the lower spray pipe 7 is arranged at the position opposite to the bottom surface to clean the battery piece to be cleaned. It can be understood that when the top surface and the bottom surface of the battery piece need to be cleaned at the same time, the upper spray pipe 6 and the lower spray pipe 7 can be arranged at the positions opposite to the top surface and the bottom surface respectively to clean the battery piece to be cleaned. During the process of the battery piece passing through the soaking groove 1 for cleaning, in addition to being soaked in the medicine water in the soaking groove 1, the upper spray pipe 6 and the lower spray pipe 7 arranged in the soaking groove 1 also spray the medicine water to the two surfaces of the battery piece respectively for flushing.

[0047] The liquid conveying device is a flow guide pipe 3. In the present embodiment, the flow guide pipe 3 is a spiral flow guide pipe. The included angle a between the water outlet end of the spiral flow guide pipe and the horizontal direction is preferably 30°-55° (see Figure 3 The front half of the spiral flow guide pipe can be arranged as a straight flow guide pipe, and the rear half including the water outlet end can be arranged as a spiral flow guide pipe. At this time, the included angle between the water outlet end of the spiral flow guide pipe including the rear half and the horizontal direction can be set to any one of 30°-55°, such as 30°, 45°, 55°, etc., and is preferably 45°. In some embodiments, the spiral flow guide pipe can also be arranged as a flow guide pipe including multiple spirals, i.e. Figure 1As shown, the spiral guide tube is provided with a plurality of reciprocating spiral pipes, and the slope of each spiral pipe is 30° to 55°, for example, 30°, 45°, 55°, etc., preferably 45°. Through the above arrangement, the liquid (i.e., medicine) in the spiral pipe can maintain a certain inclination angle and flow downward steadily, while reducing the impact of the medicine flowing out of the spiral pipe and the medicine in the temporary storage tank 2.

[0048] The utility model sets the water outlet end of the spiral guide pipe to form an angle of 35° to 50° with the horizontal direction and sets the slope of each spiral pipe to 30° to 55°, so that the liquid (i.e., medicine) in the spiral pipe can maintain a certain inclination angle and flow downward stably, while reducing the impact of the medicine flowing out of the spiral pipe and the medicine in the second tank body.

[0049] like Figure 2 As shown, the utility model discloses another embodiment of a cleaning device for use in a battery cell manufacturing process. The guide tube 3 of this embodiment is a stepped guide tube. The stepped guide tube includes at least one straight section and at least two falling sections. The straight section is a tube section extending in the horizontal direction, and the falling section is a tube section with an angle of 45° to 90° with the horizontal direction. The head and tail of each straight section are connected to the corresponding falling section, and at least one straight section intersects with the connected falling section. The angle ɑ between the stepped guide tube and the bottom of the first trough body is 30° to 55°, and ɑ is preferably 45° (see Figure 2 By configuring the liquid delivery device as a stepped flow guide pipe and setting the angle between the stepped flow guide pipe and the bottom of the first tank body to 30° to 55°, the impact of the liquid on the second tank body is greatly reduced, the rolling amplitude is reduced, and the contact area with oxygen is reduced, thereby reducing the generation of foam and preventing the liquid from being oxidized.

[0050] The two embodiments of the present invention provide a guide tube 3 at the bottom of the immersion tank 1, and the guide tube 3 is configured to be at least one of a spiral guide tube or a stepped guide tube. The medicine in the immersion tank 1 flows back to the temporary storage tank 2 (the second tank body) through the spiral guide tube or the stepped guide tube. Without changing the amount and flow rate of the medicine, the falling speed of the medicine is slowed down, the kinetic energy of the medicine is reduced, the impact of the reflux liquid on the medicine in the temporary storage tank 2 is reduced, the contact area between the medicine and oxygen and the amount of oxygen mixed into the medicine liquid are reduced, the antioxidant property of the medicine is improved, and at the same time, the generation of foam in the temporary storage tank 2 is reduced, thereby improving the stability of the medicine circulation.

[0051] In some embodiments, a filter assembly is provided on the inner wall of at least one of the spiral flow guide tube and the stepped flow guide tube for filtering the cleaning liquid passing therethrough.

[0052] The filter assembly includes at least one group of filter holes arranged in a row. It is understandable that multiple groups of filter holes can also be provided for filtering.

[0053] By setting the filter assembly on the inner wall of at least one of the spiral-shaped flow guide pipe and the stepped flow guide pipe, the impurities and bubbles contained in the cleaning liquid can be filtered through the filter holes arranged in rows on the filter assembly, and the cleanliness of the cleaning liquid is improved.

[0054] In some embodiments, the cleaning device can be provided with a plurality of flow guide pipes 3, which can be composed of one or both of the spiral-shaped flow guide pipe and the stepped flow guide pipe, for example, one spiral-shaped flow guide pipe, one stepped flow guide pipe, or only one spiral-shaped flow guide pipe or only one stepped flow guide pipe, which is not limited by the utility model.

[0055] In combination with Figure 3 To further reduce the foam in the temporary storage tank 2, the two embodiments provided by the utility model are provided with an extension 31 protruding towards the end face on the upper part of the water outlet end of the liquid conveying device (flow guide pipe 3).

[0056] In operation, the extension 31 of the flow guide pipe 3 extends below the liquid level of the temporary storage tank 2, helps to block the rolling of the medicinal liquid flowing out of the flow guide pipe 3 to the liquid level, reduces the probability of contact between the medicinal liquid and oxygen, and realizes the reduction of the generation of foam.

[0057] In combination with Figure 4 And Figure 5 Preferably, the extension 31 of the embodiment is provided with a foam elimination structure 32 protruding towards the inner wall of the liquid conveying device (flow guide pipe 3). The foam elimination structure 32 gradually reduces the cross-sectional area of the flow guide pipe 3 in the radial direction, and the cross-sectional area of the foam elimination structure 32 gradually increases along the water outlet direction of the flow guide pipe 3.

[0058] When a small amount of bubbles contained in the medicinal liquid flows out of the flow guide pipe 3, the bubbles gradually float upwards at the water outlet end and are blocked by the extension 31.

[0059] The foam elimination structure 32 of the embodiment is preferably made of a porous material. The porous material for making the foam elimination structure 32 can be foamed ceramic, porous metal, etc., which can help to attract bubbles.

[0060] In the process of continuing to flow downward along the extension 31, the water pressure on the bubbles increases, and as the cross-sectional area of the foam elimination structure 32 gradually increases along the water outlet direction of the flow guide pipe 3, the bubbles are likely to contact the foam elimination structure 32. Under the double compression of the water pressure and the foam elimination structure 32, the bubbles are prone to rupture before floating upwards to the liquid level. By setting the foam elimination structure 32, the bubbles can be prevented from generating large foam on the liquid level, which affects the circulation of the medicinal liquid.

[0061] The above disclosed is only a preferred embodiment of the utility model, of course, cannot with this to limit the utility model right scope, therefore, the equivalent change made according to the utility model claim, still belong to the utility model the scope covered.

Claims

1. A cleaning apparatus for use in a battery sheet manufacturing process, characterized by, The utility model relates to a battery piece cleaning device, including: A first groove is used for containing battery pieces to be cleaned and cleaning liquid; A second groove is used for containing the cleaning liquid flowing out of the first groove, and the upper portion of the second groove is provided with the first groove; A liquid conveying device is connected to the bottom of the first groove and is used for guiding the liquid in the first groove to the second groove; The liquid conveying device includes at least one of a spiral flow guide pipe and a stepped flow guide pipe, and the cleaning liquid in the first groove slowly flows into the second groove through at least one of the spiral flow guide pipe and the stepped flow guide pipe to reduce the flow impact force of the cleaning liquid; The first groove is further provided with a liquid spraying device opposite to the battery pieces to be cleaned, the liquid spraying device is arranged at a position opposite to at least one of the first surface and the second surface of the battery pieces to be cleaned, and the liquid spraying device cleans the battery pieces to be cleaned by spraying the cleaning liquid.

2. The cleaning apparatus of claim 1, wherein The water outlet end of the spiral flow guide pipe forms an angle of 35-50 degrees with the horizontal direction.

3. The cleaning apparatus of claim 1 or 2, wherein The spiral flow guide pipe is provided with a plurality of circulating spiral pipes, and the slope of each spiral pipe is 30-55 degrees.

4. The cleaning apparatus of claim 1, wherein The stepped flow guide pipe includes at least one flat section and at least two falling sections, the first end and the second end of the flat section are connected to the corresponding falling sections, the flat section intersects the connected falling sections, and the angle between the stepped flow guide pipe and the bottom of the first groove is 30-55 degrees.

5. The cleaning apparatus of claim 1, wherein An extension is arranged on the upper portion of the water outlet end of the liquid conveying device and protrudes towards the end face.

6. The cleaning apparatus of claim 5, wherein The extension extends below the liquid level of the cleaning liquid in the second groove.

7. The cleaning apparatus of claim 5 or 6, wherein The extension is provided with a foam eliminating structure protruding towards the inner wall of the liquid conveying device.

8. The cleaning apparatus of claim 7, wherein The foam eliminating structure gradually decreases in radial cross-sectional area along the inner wall of the liquid conveying device.

9. The cleaning apparatus of claim 7, wherein The foam eliminating structure gradually increases in cross-sectional area along the water outlet direction of the liquid conveying device.

10. The cleaning apparatus of claim 7, wherein The foam eliminating structure is made of porous material.

11. The cleaning apparatus of claim 1, wherein, Further including: A rolling device is arranged at a position opposite to at least one of the first surface and the second surface of the battery pieces to be cleaned and is used for moving the battery pieces to be cleaned in the horizontal direction for cleaning.

12. The cleaning apparatus of claim 1, wherein, A filter assembly is arranged on the inner wall of at least one of the spiral flow guide pipe and the stepped flow guide pipe and is used for filtering the passing cleaning liquid.

13. The cleaning apparatus of claim 12, wherein, The filter assembly includes at least one group of filter holes arranged in an array.

14. The cleaning apparatus of claim 1, wherein, The first groove is an immersion groove, and the second groove is a temporary storage groove.

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