KR20220055797A - Contaminants suction unit - Google Patents

Abstract

The present invention relates to a foreign matter removal device, and more particularly to the foreign matter removal device that can efficiently remove foreign matters generated in an automobile cell manufacturing process by increasing the length of a body part and separating a channel for detaching and removing foreign substances in response to the size of a large-sized automobile cell. The foreign matter removal device includes a suction unit body; a plurality of suction unit channels; a suction port; an ejection unit body; a plurality of ejection unit channels; and an ejection unit port.

Description

Foreign matter removal device {CONTAMINANTS SUCTION UNIT}

The present invention relates to a foreign material removal device, and more particularly, by increasing the length of the main body in response to a large size of a cell for automobiles and separating a channel for detaching and removing foreign substances, foreign substances generated in the automobile cell manufacturing process are removed. It relates to a foreign material removal device that can be efficiently removed.

Recently, secondary batteries have been widely used not only in small devices such as portable electronic devices, but also in electric vehicles in which driving power is secured using an internal combustion engine and/or an electric motor. The electric vehicle includes a hybrid vehicle, a plug-in hybrid vehicle, and a pure electric vehicle powered only by an electric motor and a battery without an internal combustion engine.

In the case of an electric vehicle, a large number of secondary batteries are electrically connected to increase capacity and output. In particular, a pouch-type secondary battery is widely used in a medium-to-large device due to the advantage of easy stacking.

The types of secondary batteries currently widely used include lithium ion batteries, lithium polymer batteries, nickel cadmium batteries, nickel hydrogen batteries, nickel zinc batteries, and the like. The operating voltage of such a unit secondary battery cell, that is, a unit battery cell, is about 2.5V to 4.2V. Accordingly, when a higher output voltage is required, a plurality of battery cells are connected in series to form a battery pack. In addition, a plurality of battery cells may be connected in parallel to form a battery pack according to the charge/discharge capacity required for the battery pack. The number of battery cells included in the battery pack may be variously set according to a required output voltage or charge/discharge capacity.

On the other hand, since the secondary battery for automobiles having such a large standard has a larger area than a general secondary battery, there is a problem in that the risk of grounding failure due to foreign substances is high. In particular, foreign material generation in the cutting process including the electrode cutting unit, exposure to foreign material in the moving section according to the process flow such as the lower part of the feeding belt / cutter, or foreign material drop in the vertical direction according to the arrangement of equipment, and There are many exposure factors.

1 is a perspective view showing the structure of a conventional foreign matter removal device. The conventional foreign object removal device has a main body for receiving falling foreign substances, an inhaler for sucking the foreign substances collected in the main body, a wind pressure device for guiding the foreign substances collected in the main body toward the suction unit, and a wind press with a structure mounted on the main body. It includes a cover that prevents foreign substances from scattering to the outside by the airflow generated in the .

The standard for a foreign material removal device used in the conventional secondary battery manufacturing process for automobiles is not presented, and there is no foreign object removal device capable of covering a 580 mm long cell for automobiles, so a 580 mm long cell manufacturing process for automobiles There is a problem in that grounding failure occurs due to foreign substances in the battery.

Therefore, there is a need for a method to improve the structure of the foreign material removal device capable of maximizing the foreign material removal efficiency so that the problem of grounding failure due to foreign matter does not occur when manufacturing a 580 mm long cell for automobiles.

Korean Patent Publication No. 10-2126764

The present invention has been devised to solve the above problems, and an object of the present invention is to design a new structure of the foreign material removal device by separating the channels for desorbing and removing foreign substances, thereby maximizing the foreign material removal efficiency. will provide

In addition, an object of the present invention is to provide a foreign material removal device that improves the foreign material removal efficiency to solve the faulty grounding of a secondary battery for a large standard vehicle, thereby improving the battery yield.

Foreign matter removal apparatus according to the present invention is a suction unit body; a plurality of suction unit channels formed in the suction unit body to suction foreign substances; a suction port for discharging the foreign material to the outside by providing a suction force to the suction channel; a jetting unit body positioned on one side of the suction unit body; a plurality of ejection unit channels formed on the ejection unit body to desorb the foreign substances; and a jet port for supplying air to the jet channel.

In one embodiment, the suction unit main body and the ejection unit body, characterized in that formed to be spaced apart from each other by a predetermined distance.

In one embodiment, the suction unit main body and the ejection unit body, characterized in that the width of the suction port and the ejection port port to a lower portion becomes narrower.

In one embodiment, the suction unit body and the ejection unit body, the suction wall formed at a predetermined height in the lower portion; And ejection wall; characterized in that it further comprises each.

In one embodiment, the flow ratio of the suction unit channel and the outlet channel is 1:4 to 1:8, characterized in that.

In one embodiment, the inlet channel and the outlet channel are characterized in that they are formed in a form in which a curved hole connects a straight hole formed in a vertical direction and a horizontal direction.

In one embodiment, the suction unit channel and the discharge unit channel, characterized in that the length and height are shorter toward the suction port and the jet port from the front end of the suction unit main body and the jet unit body. .

In one embodiment, the suction unit body and the discharge unit body, characterized in that the length of 180mm to 580mm.

In one embodiment, the inlet channel and the outlet channel is characterized in that it is composed of 4 to 12.

In one embodiment, it is characterized in that the pump for sucking (Suction) and blowing (Blowing) the foreign material is located at one end of the suction port and the discharge port, respectively.

According to the present invention, by designing a new structure of the foreign material removal device by separating the channel for desorbing and removing foreign materials, the effect of maximizing the foreign material removal efficiency occurs.

In addition, the effect of improving the foreign material removal efficiency to solve the grounding failure of the secondary battery for a large standard vehicle, thereby improving the battery yield is generated.

1 is a perspective view showing the structure of a conventional foreign matter removal device.
Figure 2 is a perspective view showing the structure of the foreign matter removal device according to the present invention.
Figure 3 (a) is a cross-sectional view showing the front structure of the foreign material removal device according to the present invention, Figure 3 (b) is a cross-sectional view showing the rear structure of the foreign material removal device according to the present invention.
Figure 4 (a) is a cross-sectional view showing the side (right) structure of the foreign material removal device according to the present invention, Figure 4 (b) is a cross-sectional view showing the side (left) structure of the foreign material removal device according to the present invention.
5 is a view showing the flow velocity distribution of the air flow generated inside the foreign matter removal device according to the present invention.

The detailed description of the present invention is intended to completely explain the present invention to those of ordinary skill in the art. Throughout the specification, when a part is said to "include" a certain element or to "feature" a certain structure and shape, it excludes other components or excludes other structures and shapes, unless otherwise specifically stated. It is not meant to be, but is meant to include, other components, structures, and shapes.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are presented and described in detail in the detailed description. However, this is not intended to limit the content of the invention according to the embodiments, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention.

Figure 2 is a perspective view showing the structure of the foreign material removal device 1000 according to the present invention, Figure 3 (a) is a cross-sectional view showing the front structure of the foreign material removal device according to the present invention, Figure 3 (b) is this view It is a cross-sectional view showing the rear structure of the foreign matter removal device according to the present invention. And, Figure 4 (a) is a cross-sectional view showing the side (right) structure of the foreign material removal device according to the present invention, Figure 4 (b) is a cross-sectional view showing the side (left) structure of the foreign material removal device according to the present invention am.

The foreign material removal apparatus 1000 according to the present invention may be divided into a suction unit 100 and an ejection unit 200 .

The suction unit 100 may include a suction unit body 110 , a suction unit channel 120 , and a suction unit port 130 .

The suction unit body 110 is a configuration that forms the overall shape of the suction unit 100 . Accordingly, the suction unit channel 120 and the suction unit port 130 may be formed in the suction unit body 110 . In addition, the suction unit body 110 is hollow so that an airflow by negative pressure can be formed therein so that foreign substances introduced through the suction unit channel 120 are easily discharged to the suction unit port 130 . can

The suction unit body 110 may have a narrower width toward the lower portion from the portion coupled to the suction unit port 130 . Referring to FIG. 2 , the lower portion of the suction unit body 110 may have a constant inclination from one side to the other side.

In addition, the suction unit body 110 may be formed in a polyhedral cylindrical structure extending in length. For example, the main bodies 110 and 210 may be formed in a cylindrical structure having various cross-sectional shapes, such as circular, rectangular, pentagonal, and hexagonal cross-sectional shapes.

The suction unit body 110 may have a length of 180 mm to 580 mm depending on the shape of the secondary battery for a vehicle in which the foreign material removal device 1000 is used. Here, when the length of the suction unit body 110 is formed to be less than 180 mm, there may be a problem in that a large amount of foreign substances generated in the manufacturing process of the secondary battery for a vehicle cannot be accommodated. And, when the length of the suction unit body 110 is formed to exceed 580 mm, as the volume of the suction unit body 110 increases, the tolerability of the foreign material removal device 1000 in the secondary battery manufacturing process for automobiles may be reduced. there is.

The suction unit body 110 may further include a suction wall 111 , the suction wall 111 is configured to smooth the airflow of the air sucked into the suction unit 100 . In addition, the suction wall 111 may be formed at a predetermined height at the lower end of the suction unit body 110 .

Here, the width of the suction part body 110 means the shortest horizontal length, the length of the suction part body 110 means the longest length, and the height of the suction part body 110 is that of the suction part body 110 . Make the length perpendicular to the length, which means width.

The suction channel 120 is a passage for sucking foreign substances on the surface of an object (eg, a vehicle-type secondary battery) and discharging it to the outside. Accordingly, one or more suction unit channels 120 may be formed in an open shape at the lower portion of the suction unit body 110 .

The suction unit channel 120 may be composed of 4 to 12 depending on the type of the secondary battery for a vehicle in which the foreign material removal device 1000 is used. Here, when fewer than four suction channels 120 are formed, there may be a problem in that the effect of sucking a large amount of foreign substances generated in the manufacturing process of a secondary battery for a vehicle becomes insignificant. And when the number of suction channel 120 is formed in excess of 12, as the volume of the suction body 110 to accommodate the plurality of suction channels 120 increases, the foreign material removal device ( 1000) may have a problem of poor tolerability.

Referring to FIG. 4 , the suction unit channel 120 may be formed in a predetermined shape along the longitudinal direction of the suction unit body 110 . In an embodiment, the suction unit channel 120 may be provided in a form in which a curved channel connects a straight channel formed in the height and length directions of the suction unit body 110 .

In addition, the length and height of the suction unit channel 120 may be shortened from the front end of the suction unit main body 110 to the portion to which the suction unit port 130 is connected. Accordingly, the suction unit channel 120 may be formed in the form of a swoosh (Nike logo) toward the rear end of the suction unit body 110 . As the length and height of the suction unit channel 120 are shortened, the suction speed of foreign substances inside the suction unit body 110 may be uniformly formed. In addition, the suction unit channels 120 can induce the suction amount and suction speed of foreign substances introduced through each suction unit channel 120 to be uniform despite the different suction force applied to each suction unit channel 120 . there is.

In addition, the suction unit channel 120 may be formed to extend to the suction wall 111 formed in the suction unit body (110).

The suction port 130 is configured to provide a suction force to the suction channel 120 to discharge foreign substances to the outside. The suction port 130 may be formed to extend to the rear end of the suction unit body 110 .

In addition, the suction port 130 may be provided in a cylindrical structure in which one end is open and an inner wall is formed. In addition, the suction port 130 may be coupled and connected to an external pump to provide suction force to the suction channel 120 .

The suction port 130 may provide suction force to the suction channel 120 through the suction unit and collect foreign substances introduced into the suction unit body 110 . Here, in order to easily discharge foreign substances, the inner diameter of the suction port 130 may be changed according to the length of the suction unit body 110 , the number of suction unit channels 120 , and the performance of the inhaler. In one embodiment, the suction port 130 may be changed to increase in diameter along the discharge direction of the foreign material.

The spout 200 may include a spout body 210 , a spout channel 220 , and a spout port 230 .

The blower body 210 provides the overall shape of the blower 200 , and is hollow so that an airflow can be formed therein by the air supplied by the blowout port 230 .

The ejection unit body 210 may be formed in a polyhedral tubular structure extending to a predetermined length. For example, the jet body 210 may be formed in a cylindrical structure having various cross-sectional shapes, such as a circular shape, a square shape, a pentagonal shape, and a hexagonal shape.

The ejection unit body 210 may be formed to correspond to the intake unit body 110 , and in one embodiment, the ejection unit body 210 is in the form of a secondary battery for a vehicle in which the foreign material removal device 1000 is used. Depending on the length may be configured to 180mm to 580mm. Here, when the length of the main bodies 110 and 210 is formed to be less than 180 mm, there may be a problem in that a large amount of foreign substances generated in the manufacturing process of a secondary battery for a vehicle cannot be accommodated. And when the length of the main body 110, 210 is formed to exceed 580 mm, as the volume of the main body 110, 210 increases, the tolerability of the foreign material removal device 1000 in the secondary battery manufacturing process for automobiles may be reduced. there is.

In addition, the ejection unit body 210 is located on one side of the suction unit body 110 , and the suction unit body 110 and the ejection unit body 210 are formed to be spaced apart from each other by a predetermined distance, and foreign substances introduced into the suction unit body 110 . And the air supplied to the jet body 210 does not interfere with each other.

The jet body 210 may have a narrower width toward the bottom from the jet port 230 . Referring to FIG. 3 , the lower portion of the ejection unit body 210 may have a constant inclination toward the lower portion from the surface facing the suction unit main body 110 .

At this time, as the width of the lower portion of the ejector body 210 is narrowed, a space may be formed between the lower portion of the inlet body 110 and the lower portion of the ejector body 210 . In other words, when the foreign material removal apparatus 1000 is in contact with the surface of the object, the lower portion of the suction unit 110 , the lower portion of the ejection unit 210 , and the surface of the object may form a triangular space.

In addition, the jet body 210 may further include a jet wall 211 having a predetermined height at the lower portion. In addition, the ejection wall 211 may be formed at a predetermined angle with the width direction of the ejection unit body 210 . The jet wall 211 may guide the air blown out from the jet channel 220 . The ejection wall 211 allows air to be dispersed on the surface of an object in a wide range, thereby increasing the range of desorbing foreign substances.

The ejection unit channel 220 is formed in the ejection unit body 210 to desorb foreign substances. Furthermore, the ejection unit channel 220 may be formed in the lower portion of the ejection unit body 210 to be positioned adjacent to an object containing foreign substances. The jet channel 220 is formed through the jet body 210 , and air may be discharged through all surfaces.

In the foreign matter removal device 1000 according to the present invention, foreign substances desorbed by the air ejected from the ejection unit channel 220 are sucked into the suction unit channel 120 to remove the foreign substances. Accordingly, the jet channel 220 may be formed to have a shape and number corresponding to that of the suction channel 120 .

The jet port 230 may be provided to extend to the rear end of the jet body 210 . The spout port 230 may be connected to an external pump to form an airflow in the inner space of the spout body 110 , and may supply air to the spout channel 220 .

The jet port 230 may be formed to have a smaller length and diameter than the suction port 130 . Accordingly, the jet port 230 may have a smaller diameter along a direction opposite to the air inflow direction.

The flow ratio of the suction unit 100 and the jet unit 200 according to the present invention may be 1:4 to 1:8. In the foreign matter removal device 1000 according to the present invention, the air ejected from the ejection unit 200 collides with the surface of the object and is scattered in all directions together with the foreign material, and the suction unit 100 sucks the dispersed air in all directions. , the rotation of the airflow occurs on the surface of the object, so that the suction unit 100 can smoothly absorb foreign substances.

5 is a view showing the flow rate distribution of the airflow generated inside the foreign matter removal device according to the present invention according to the flow rate ratio of the suction part and the ejection part. Figure 5 (a) is a flow rate distribution of the air flow generated inside the foreign material removal device when removing foreign substances using only the suction unit 100, Figure 5 (b) is a flow rate ratio of 1:8, Figure 5 (c) is a flow rate ratio When is 1:4, it is the flow velocity distribution of the airflow generated inside the foreign material removal device.

Referring to FIG. 5 , if the flow rate ratio between the suction unit 100 and the jet unit 200 is less than 1:4 or if there is no flow rate of the jet unit 200 , the air flow is stagnated on the surface of the object and the foreign material caused by the jet unit 200 . There is a problem in that the detachment or the suction rate of foreign substances by the suction unit 100 is reduced. And, when the flow ratio exceeds 1:8, the suction unit 100 sucks more air stagnant on the surface of the object than the air blown out through the jet unit 200, so that the air flow in the suction unit 100 is A problem that is not smooth arises.

<Experimental example>

The uniformity of the inside of the suction unit and the discharge unit and the average speed of the suction unit channel and the discharge unit channel were measured using the foreign material removal device according to the present invention. At this time, the flow rate of the suction part is 1080LPM, and the flow ratio of the suction part and the discharge part is 1:4.

blowout suction part channel 1 0.97 0.85 channel 2 0.97 0.85 channel 3 0.98 0.84 channel 4 0.98 0.86 channel 5 0.98 0.82 channel 6 0.98 0.86 channel 7 0.98 0.89 channel 8 0.98 0.89 channel 9 0.98 0.87 channel 10 0.98 0.86 channel 11 0.98 0.87 channel 12 0.98 0.83 Average 0.97 0.86

blowout suction part channel 1 26.49 9.10 channel 2 25.97 8.66 channel 3 28.27 7.65 channel 4 28.59 8.81 channel 5 28.23 8.87 channel 6 28.36 9.07 channel 7 28.42 9.33 channel 8 28.52 9.70 channel 9 28.58 9.47 channel 10 28.51 9.27 channel 11 28.49 9.82 channel 12 28.15 8.30 Average 28.04 9.09

Table 1 shows the internal velocity uniformity index of each of the suction channel and the jet channel, and Table 2 shows the average velocity of each of the suction channel and the jet channel inlet.

Referring to Tables 1 and 2, the foreign matter removal device according to the present invention shows very high uniformity, with the uniformity index of the flow velocity inside the suction channel and the outlet channel being 0.97 and 0.86, which are close to 1.

In addition, it can be seen that the average velocity of each of the suction unit channel and the ejection unit channel is relatively not different from the overall average velocity of 28.04 and 9.09.

Therefore, it can be seen that the foreign matter removal device according to the location according to the present invention adjusts the flow rate ratio of the suction part and the ejection part, thereby forming the internal flow rate of the foreign material removal device relatively uniformly.

Although described with reference to the preferred embodiment of the present invention, those of ordinary skill in the art can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

1000: foreign matter removal device
100: suction unit
110: suction unit body portion
111: suction wall
120: intake channel
130: suction port
200: blowout
210: ejection unit body
211: squirt wall
220: jet channel
230: jet port

Claims (10)

suction unit body;
a plurality of suction unit channels formed in the suction unit body to suction foreign substances;
a suction port for discharging the foreign material to the outside by providing a suction force to the suction channel;
a jetting unit body positioned on one side of the suction unit body;
a plurality of ejection unit channels formed on the ejection unit body to desorb the foreign substances; and
Containing, a jet port for supplying air to the jet channel
debris removal device.
According to claim 1,
The suction unit main body and the ejection unit main body,
A foreign matter removal device, characterized in that it is formed spaced apart a certain distance.
According to claim 1,
The suction unit main body and the ejection unit main body,
The foreign matter removal device, characterized in that the width is narrowed toward the bottom from the suction port and the jet port port.
The method of claim 1,
The suction unit main body and the ejection unit main body,
a suction wall formed at a certain height in the lower part; And ejection wall; Characterized in that each further comprises a, foreign matter removal device.
According to claim 1,
The flow ratio of the suction unit channel and the outlet channel is,
1:4 to 1:8, characterized in that the foreign matter removal device.
According to claim 1,
The inlet channel and the outlet channel are,
A foreign material removal device, characterized in that it is formed in the form of connecting straight holes formed in vertical and horizontal directions with curved holes.
According to claim 1,
The inlet channel and the outlet channel are,
The foreign material removal device, characterized in that the length and height are shortened from the front end of the suction unit body and the jet unit body toward the suction port port and the jet unit port.
According to claim 1,
The suction unit body and the discharge unit body,
The foreign matter removal device, characterized in that the length is 180mm to 580mm.
According to claim 1,
The inlet channel and the outlet channel are,
A foreign material removal device, characterized in that it consists of 4 to 12 pieces.
The method of claim 1,
A foreign material removal device, characterized in that a pump for sucking and blowing the foreign material is located at one end of the suction port and the discharge port, respectively.

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