Chemical solution containing assembly and device for supplying chemical solution

Abstract

The invention relates to a chemical solution containing assembly and an apparatus for supplying a chemical solution. The chemical solution containment assembly includes: a reservoir body configured to receive a chemical solution therein and formed of a non-conductive material wherein a top portion of the reservoir body is at least partially open; a reservoir cover covering a partially open top of the reservoir body to seal an interior of the reservoir body, and formed of a material having a melting point higher than a heating temperature of the chemical solution; a heating member configured to heat the chemical solution in the reservoir body through the reservoir cover; and a liquid level sensor unit mounted on a side wall of the reservoir body and configured to measure at least one liquid level of the chemical solution in the reservoir body.

Description

[0001] Cross - reference to related applications

[0002] This application claims the priority benefit of Korean Patent Application No. 10 - 2023 - 0189035, filed with the Korean Intellectual Property Office (KIPO) on December 21, 2023, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] Example embodiments relate to a chemical solution containing assembly and an apparatus for supplying a chemical solution. More specifically, example embodiments relate to a chemical solution containing assembly for storing a chemical solution to be supplied to an inkjet head and an apparatus for supplying a chemical solution. Background Art

[0004] An apparatus for supplying a chemical solution may supply a chemical solution to an inkjet head. The apparatus for supplying a chemical solution may include a heating member, such as a heater, for maintaining the chemical solution at a constant temperature. In order to effectively transfer heat from the heater and safely operate the heater, a reservoir on which the heating member is disposed may include a metal - based material having a high melting point so as not to be deformed by the heat provided by the heater.

[0005] However, when an apparatus for supplying a chemical solution is configured with a metal - based material, there are limitations in attaching a sensor to check the level of the chemical solution. Accordingly, the prior art has attempted to solve this problem by providing a separate viewing window or an additional tube for checking the level of the chemical solution outside the apparatus for supplying the chemical solution, but when the chemical solution is exposed to the outside, the chemical solution is deformed, leading to another problem. Therefore, there is a need for an apparatus for supplying a chemical solution that can operate both a heating member and a sensor for detecting the level. Summary of the Invention

[0006] Example embodiments provide a chemical solution containing assembly capable of operating both a heating member and a water level sensor simultaneously.

[0007] Example embodiments provide an apparatus for supplying a chemical solution including the chemical solution containing assembly.

[0008] According to an exemplary embodiment, a chemical solution containing component includes: a reservoir body configured to receive a chemical solution therein and formed of a non-conductive material, wherein the top of the reservoir body is at least partially open; a reservoir cover covering the partially open top of the reservoir body to seal the interior of the reservoir body and formed of a material having a melting point higher than the heating temperature of the chemical solution; a heating member configured to heat the chemical solution in the reservoir body through the reservoir cover; and a liquid level sensor unit mounted on a side wall of the reservoir body and configured to measure at least one liquid level of the chemical solution in the reservoir body.

[0009] According to an exemplary embodiment, a chemical solution containing component includes: a reservoir body configured to receive a chemical solution therein and formed of a non-conductive material, wherein the top of the reservoir body is at least partially open; a reservoir cover covering the partially open top of the reservoir body to seal the interior of the reservoir body and formed of a material having a melting point higher than the heating temperature of the chemical solution; a heating member configured to heat the chemical solution in the reservoir body through the reservoir cover; and a sealing member disposed between an upper surface of the reservoir body and a lower surface of the reservoir cover to prevent the chemical solution from being exposed.

[0010] According to an exemplary embodiment, a device for supplying a chemical solution includes: an ink supply member storing a chemical solution; a first chemical solution containing component receiving the chemical solution from the ink supply member and storing the chemical solution in the first chemical solution containing component; and a second chemical solution containing component receiving the chemical solution from the first chemical solution containing component and storing the chemical solution in the second chemical solution containing component; wherein at least one of the first chemical solution containing component and the second chemical solution containing component includes: a reservoir body configured to receive a chemical solution therein and formed of a non-conductive material, wherein the top of the reservoir body is at least partially open; a reservoir cover covering the partially open top of the reservoir body to seal the interior of the reservoir body and formed of a material having a melting point higher than the heating temperature of the chemical solution; a heating member configured to heat the chemical solution in the reservoir body through the reservoir cover; and a liquid level sensor unit mounted on a side wall of the reservoir body and configured to measure at least one liquid level of the chemical solution in the reservoir body.

[0011] According to an exemplary embodiment, a chemical solution containing assembly includes: a reservoir body configured to receive a chemical solution therein and formed of a non-conductive material, wherein at least a part of the top of the reservoir body is open; a reservoir cover covering the partially open top of the reservoir body to seal the interior of the reservoir body and formed of a material having a melting point higher than the heating temperature of the chemical solution; a heating member configured to heat the chemical solution in the reservoir body through the reservoir cover; and a liquid level sensor unit installed on a side wall of the reservoir body and configured to measure at least one liquid level of the chemical solution in the reservoir body.

[0012] Since the reservoir body and the reservoir cover may include different materials, the chemical solution containing assembly has the advantage of directly heating the chemical solution by operating the heating member and the water level sensor in one chemical solution containing assembly.

[0013] In addition, since there is no need for a separate observation window or water level inspection tube, the possibility of deformation of the chemical solution caused by an external light source is reduced, and the space efficiency for containing the chemical solution is improved.

[0014] An apparatus for supplying a chemical solution including the chemical solution containing assembly according to an exemplary embodiment can supply a chemical solution at a determined temperature in a process where a chemical solution needs to be supplied quickly, thereby improving process reliability and productivity can be expected.

[0015] However, the effects of the present invention are not limited to the above effects, and various extensions can be made without departing from the spirit and scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Example embodiments will be understood more clearly from the following detailed description with reference to the accompanying drawings. Figures 1 to 9 represents a non-limiting example embodiment as described herein.

[0017] Figure 1 is a perspective view showing a chemical solution containing assembly according to an exemplary embodiment.

[0018] Figure 2 is showing Figure 1 an exploded perspective view of the chemical solution containing assembly.

[0019] Figure 3 is showing Figure 1 a plan view of the chemical solution containing assembly.

[0020] Figure 4 is a cross-sectional view taken along line A-A' of Figure 3 the same.

[0021] Figure 5 is a cross-sectional view taken along line B-B' of Figure 4 .

[0022] Figure 6 is a cross-sectional view showing the reservoir cover of a chemical solution containing component of Figure 1 .

[0023] Figure 7 is a cross-sectional view showing a heater head separated from the reservoir cover of Figure 6 .

[0024] Figure 8 is a block diagram showing a negative pressure supply member and a circulation reservoir connected to a chemical solution containing component of Figure 1 .

[0025] Figure 9 is a block diagram showing an apparatus for supplying a chemical solution according to an exemplary embodiment. DETAILED DESCRIPTION

[0026] Hereinafter, exemplary embodiments will be explained in detail with reference to the accompanying drawings, in which like reference numerals denote like elements unless otherwise specified.

[0027] Although terms such as "first", "second", and "third" may be used herein to describe various elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, or section from another element, component, region, layer, or section. Thus, a first element, a first component, a first region, a first layer, or a first section discussed below may be referred to as a second element, a second component, a second region, a second layer, or a second section without departing from the scope of the present disclosure.

[0028] For ease of description, in this document, spatial relative terms such as "below", "beneath", "lower", "under", "above", "upper", etc. may be used to describe the relationship of one element or feature shown in the figures to another element (multiple elements) or feature (multiple features). It will be understood that, in addition to the orientation depicted in the figures, the spatial relative terms are intended to encompass different orientations of the device during use or operation. For example, the device may be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relative wording used herein will be interpreted accordingly. In addition, when an element is referred to as being "between two elements", the element may be the only element between the two elements, or there may be one or more other intervening elements. Similarly, when an element is referred to as being "on another element" or "connected to" another element, the element may be directly on the other element, directly connected to, directly coupled to, or directly adjacent to the other element, or there may be one or more other intervening elements. In contrast, when an element is referred to as being "directly on another element", "directly connected to", "directly coupled to" another element, or "adjacent to" another element, there are no intervening elements.

[0029] When the terms "about" or "substantially" are used in this specification in connection with numerical and / or geometric terms, it means that the relevant numerical values include manufacturing tolerances (e.g., ±10%) around the stated numerical values. In addition, whether or not the numerical and / or geometric terms are modified with "about" or "substantially", it will be understood that these numerical values should be understood to include manufacturing or operating tolerances (e.g., ±10%) around the stated numerical values and / or geometric figures. When referring to "in the range from C to D", this means including C to including D, unless otherwise specified.

[0030] Figure 1 is a perspective view showing a chemical solution containing assembly according to an exemplary embodiment. Figure 2 is Figure 1 an exploded perspective view of the chemical solution containing assembly. Figure 3 is showing Figure 1 a plan view of the chemical solution containing assembly. Figure 4 is along Figure 3 the line A-A' of the cross-sectional view taken. Figure 5 is along Figure 4 the line B-B' of the cross-sectional view taken. Figure 6 is showing Figure 1 a cross-sectional view of the reservoir cover of the chemical solution containing assembly. Figure 7 is showing Figure 6 a cross-sectional view of the heater head separated from the reservoir cover. Figure 8 is showing the connection to Figure 1 a block diagram of the negative pressure supply member and the circulation reservoir of the chemical solution containing assembly.

[0031] Reference Figures 1 to 8 , the chemical solution containing component 100 may include a reservoir body 111, a reservoir cover 112, a liquid level sensor unit 142, and a heating member 120. Additionally, the chemical solution containing component 100 may further include at least one temperature sensor 141, a sealing member 130, etc.

[0032] In an exemplary embodiment, the chemical solution containing component 100 may be used for manufacturing a display device. For example, the chemical solution containing component 100 may receive a chemical solution supplied from an ink supply member in the chemical solution containing component 100 and supply the chemical solution to an inkjet head capable of discharging the chemical solution.

[0033] In an exemplary embodiment, the reservoir body 111 may have a shape of a rectangular parallelepiped. The reservoir body 111 may contain a chemical solution therein. The chemical solution may include a photo-curable ink. The reservoir body 111 may have a shape with an upper surface opening. The upper surface of the reservoir body 111 may be open to expose the inside of the reservoir body 111. The reservoir body 111 may include a non-conductive material. Since the reservoir body 111 may include a non-conductive material, an electric liquid level sensor may be operated on the reservoir body 111, which will be described later. The non-conductive material may include a resin-based material. For example, the resin-based material may include a material having good chemical resistance, heat resistance, and low reactivity, such as perfluoroalkoxy (PFA), polytetrafluoroethylene (PTFE), etc. Thus, the reservoir body 111 may accommodate various chemical solutions.

[0034] The reservoir cover 112 may have a shape corresponding to the shape of the upper surface to cover the upper surface of the reservoir body 111. The reservoir cover 112 may be disposed on the upper surface to cover the inside of the reservoir body 111. The reservoir cover 112 may include a metal-based material. For example, the metal-based material may include a material having high thermal conductivity, such as aluminum. Since the reservoir cover 112 includes a metal-based material, the heating member 120 may be operated on the reservoir cover 112, which will be described later. The metal-based material may include a material having a melting point higher than the heating temperature of the heating member 120, so as not to be deformed by the heat supplied by the heating member 120.

[0035] The sealing member 130 may be inserted between the upper surface of the opening of the reservoir body 111 and the bottom surface of the reservoir cover 112. The sealing member 130 may be inserted between the reservoir cover 112 and the reservoir body 111 that are coupled to each other to prevent the chemical solution accommodated in the reservoir body 111 from leaking. In particular, the sealing member 130 may be inserted between the upper surface of the reservoir body 111 and the bottom surface of the reservoir cover 112. The sealing member 130 may include an O-ring or a gasket.

[0036] In an exemplary embodiment, the liquid level sensor unit 142 may be a sensor for detecting the water level of the chemical solution inside the reservoir body 111. The liquid level sensor unit 142 may be disposed on one sidewall of the reservoir body 111. The liquid level sensor unit 142 may include an electric liquid level sensor to electrically measure the liquid level of the chemical solution in the reservoir body 111. For example, the liquid level sensor unit 142 may include at least one of a non-contact water level sensor 142a and a contact water level sensor 142b.

[0037] As Figure 1 and Figure 2 shown, the liquid level sensor unit 142 may include a non-contact water level sensor 142a. The non-contact water level sensor 142a may be disposed on one sidewall of the reservoir body 111. The non-contact water level sensor 142a may have a strip shape extending from the upper part to the lower part of one sidewall of the reservoir body 111. The non-contact water level sensor 142a includes a display window and an adhesive electrode, and may detect the water level by converting the capacitance value detected by the adhesive electrode into water level information without directly contacting the chemical solution inside the reservoir body 111.

[0038] The non-contact water level sensor 142a may measure the water level using an electric field. Since the non-contact water level sensor 142a uses an electric field, it cannot operate in a chemical solution storage device made of a conductor such as a metal material. Since the reservoir body 111 includes a non-conductive material, the chemical solution accommodating assembly 100 according to the exemplary embodiment has the advantage of operating the non-contact water level sensor 142a.

[0039] The liquid level sensor unit 142 may include a contact water level sensor 142b. In particular, the liquid level sensor unit 142 may include a plurality of contact water level sensors 142b. The contact water level sensor 142b may be disposed to penetrate one sidewall of the reservoir body 111 and may directly contact the chemical solution accommodated in the reservoir body 111.

[0040] The contact-type water level sensor 142b can detect the water level of the chemical solution contained in the reservoir body 111. The contact-type water level sensor 142b can detect information regarding the water level and control the water level to remain constant. The contact-type water level sensor 142b can include a plurality of contact-type water level sensors 142b arranged along one sidewall of the reservoir body 111. The plurality of contact-type water level sensors 142b can be vertically spaced apart from each other along one sidewall of the reservoir body 111. For example, the plurality of contact-type water level sensors 142b can be installed at a plurality of water level points on one sidewall of the reservoir body 111.

[0041] The contact-type water level sensor 142b can perform different functions according to the height (i.e., the water level point). For example, the contact-type water level sensor 142b positioned near the upper surface of the reservoir body 111 can control the excessive supply of the chemical solution, and the contact-type water level sensor 142b positioned near the lower surface of the reservoir body 111 can detect the amount of the remaining chemical solution after the discharge of the chemical solution is completed.

[0042] In an exemplary embodiment, the heating member 120 can be provided on the reservoir cover 112 to heat the chemical solution contained in the reservoir body 111.

[0043] The heating member 120 can include a heating member that heats by directly contacting the chemical solution. For example, the heating member 120 can include at least one heater head 121 and a heating rod 122.

[0044] The at least one heater head 121 can include a plurality of heater heads 121, and the plurality of heater heads 121 are provided on the reservoir cover 112 to be spaced apart from each other to uniformly heat the chemical solution in the reservoir body 111. For example, the plurality of heater heads 121 can be arranged in rows on the upper surface of the reservoir cover 112, or can be arranged in a zigzag shape. The heater head 121 can be provided to penetrate the reservoir cover 112, and the heating rod 122 can be provided on the lower surface of the heater head 121. The heating rod 122 can extend vertically downward from the lower surface of the heater head 121 and can directly contact the chemical solution contained in the reservoir body 111.

[0045] In an exemplary embodiment, the chemical solution containing assembly 100 can further include a heat dissipation plate 160. As Figures 5 to 7 shown, the heat dissipation plate 160 can extend vertically downward from the lower surface of the heater head 121 while surrounding the outer peripheral surface of the heating rod 122. The heat dissipation plate 160 can include a material having high thermal conductivity such that the heat transferred from the heater head 121 to the heating rod 122 is transferred in a manner of directly contacting the chemical solution, thereby uniformly heating the chemical solution. The heat dissipation plate 160 can include a metal material.

[0046] The heat sink 160 can be placed to surround each of the plurality of heating rods 122. The heat sink 160 can include a plurality of radial heat sinks 162 and connection plates 164. The plurality of radial heat sinks 162 extend from the outer peripheral surface of each of the plurality of heating rods 122, and the connection plates 164 connect the radial heat sinks 162 to each other. The plurality of radial heat sinks 162 can extend in a plurality of radial directions in a predetermined section in the vertical direction of the outer peripheral surface of each of the plurality of heating rods 122. For example, the heat sink 160 can include a plurality of radial heat sinks 162 that, when viewed in a plan view, extend around the heating rod 122 in the four directions of up, down, left, and right. The connection plates 164 connect the radial heat sinks 162 that extend in the left and right directions and in the up and down directions on the side surfaces of each of two adjacent heating rods 122. By providing the heat sink 160, the heat transferred from the heater head 121 to the heating rods 122 can be evenly distributed into the chemical solution, thereby stabilizing the temperature distribution of the chemical solution. It is possible to prevent only a specific area of the chemical solution from reaching a high temperature, thereby avoiding thermal deformation of the reservoir body 111 including a resin-based material.

[0047] As Figure 7 shown, the heat sink 160 according to an embodiment can be provided to be integrally coupled to the reservoir cover 112. The reservoir cover 112 can be provided with a plurality of first through holes 114 that penetrate the reservoir cover 112 and expose the heat sink 160. The diameters and shapes of the plurality of first through holes 114 can be set to correspond to the diameter and shape of the heater head 121. The heat sink 160 can include connection plates 164 and a plurality of radial heat sinks 162 that extend radially with respect to the plurality of first through holes 114. For example, the heat sink 160 can include radial heat sinks 162 that, when viewed in a plan view, extend in four vertical directions with respect to the plurality of first through holes 114. The radial heat sinks 162 can have second through holes 166 that penetrate the heat sink 160 in the height direction perpendicular to the vertical direction in which the radial heat sinks 162 extend, at the positions where the plurality of first through holes 114 are located. The diameters and shapes of the second through holes 166 can be set to correspond to the diameter and shape of the heating rods 122. As Figure 6As shown, the heater head 121 and the heating rod 122 can be coupled to the first through hole 114 of the reservoir cover 112 and the second through hole 166 of the heat dissipation plate 160 to serve as a heater. In an exemplary embodiment, at least one temperature sensor 141 can be disposed on the upper surface of the reservoir cover 112 to detect the temperature of the chemical solution contained in the reservoir body 111. Although not shown in the drawings, the temperature sensor 141 can control the heating temperature of the heating member 120 through the controller by transmitting the detected temperature of the chemical solution to the controller. The temperature sensor 141 can include both a contact type sensor and a non-contact type sensor.

[0048] In an exemplary embodiment, as Figure 8 shown, the chemical solution containing assembly 100 may further include a negative pressure supply member 170 and a circulation reservoir 180.

[0049] The chemical solution containing assembly 100 can be connected to the circulation reservoir 180 through a circulation connection line 181 located on one side wall of the reservoir body 111. The circulation reservoir 180 can circulate the chemical solution contained in the chemical solution containing assembly 100 so that the chemical solution is heated uniformly. Although not shown in the drawings, the circulation reservoir 180 may additionally include a pump for circulating the chemical solution, and the chemical solution containing assembly 100 may include a partition wall inside the reservoir body 111 to guide the flow of the chemical solution. By providing the circulation reservoir 180, the temperature distribution of the chemical solution can be stabilized, and it can be prevented that only a specific part of the chemical solution is at a high temperature, thereby preventing thermal deformation of the reservoir body 111 made of a resin-based material.

[0050] The chemical solution containing assembly 100 can be connected to the negative pressure supply member 170 through a negative pressure connection line 171 located on the upper surface of the reservoir cover 112. The negative pressure supply member 170 can be connected to the upper surface of the reservoir cover 112 to supply negative pressure to the inside of the chemical solution containing assembly 100. Therefore, the bubbles generated when heating or circulating the chemical solution can be collected.

[0051] The reservoir body 111 may include an inlet 151 and an outlet 152. The inlet 151 is on one side wall of the reservoir body 111, and the outlet 152 is on one side wall or the lower surface of the reservoir body 111. Although not shown in the drawings, an inclined flow path for guiding the chemical solution contained in the reservoir body 111 to the outlet 152 is provided so that the chemical solution can be effectively supplied.

[0052] As described above, the chemical solution accommodating assembly 100 may include: a reservoir body 111 having an open upper surface; a reservoir lid 112 coupled to the upper surface in a sealed manner through a sealing member 130; a liquid level sensor unit 142 disposed on one sidewall of the reservoir body 111; and a heating member 120 disposed on the reservoir lid 112.

[0053] The reservoir body 111 may include a non-conductive material, for example, a resin-based material. The reservoir lid 112 may include a material having a melting point higher than the heating temperature of the heating member 120, for example, a metallic material. Thus, the chemical solution can be heated by operating the heating member 120 on the reservoir lid 112, and the liquid level of the chemical solution can be detected by operating a capacitive water level sensor on the reservoir body 111.

[0054] Therefore, compared with the prior art that requires a separate viewing window or a water level inspection tube to detect the liquid level of the internal chemical solution, since the heating member and the capacitive water level sensor can be operated simultaneously on one chemical solution accommodating assembly, the chemical solution accommodating assembly according to the exemplary embodiment has the advantage of improving space efficiency. In addition, since no separate viewing window is provided, deformation of the chemical solution caused by external light sources can be prevented.

[0055] Hereinafter, an apparatus for supplying a chemical solution including Figure 1 the chemical solution accommodating assembly will be described.

[0056] Figure 9 FIG. is a block diagram showing an apparatus for supplying a chemical solution according to an exemplary embodiment.

[0057] Referring to Figure 9 , the apparatus 10 for supplying a chemical solution may include an ink supply member 200, a first chemical solution accommodating assembly 100a, a second chemical solution accommodating assembly 100b, and a plurality of inkjet heads 300.

[0058] Referring to Figure 9 , the apparatus 10 for supplying a chemical solution may be used in a process of supplying a chemical solution onto a substrate to form pixels on the substrate. In other words, the apparatus 10 for supplying a chemical solution may be used in various processes for manufacturing a display device.

[0059] In an exemplary embodiment, the ink supply member 200 may supply a chemical solution to the second chemical solution containing assembly 100b. The second chemical solution containing assembly 100b may be used as a buffer reservoir by temporarily storing the chemical solution before providing the chemical solution contained in the second chemical solution containing assembly 100b to the first chemical solution containing assembly 100a. The second chemical solution containing assembly 100b may supply the chemical solution to the first chemical solution containing assembly 100a. The first chemical solution containing assembly 100a may include a plurality of inkjet heads 300. The inkjet heads 300 may receive the chemical solution from the first chemical solution containing assembly 100a and eject droplets onto a substrate.

[0060] In an exemplary embodiment, at least one of the first chemical solution containing assembly 100a and the second chemical solution containing assembly 100b may include Figure 1 the chemical solution containing assembly 100.

[0061] In an exemplary embodiment, the first chemical solution containing assembly 100a and the second chemical solution containing assembly 100b may include Figure 1 the chemical solution containing assembly 100. In a process of quickly supplying the chemical solution, when there is not enough time to heat the chemical solution in the first chemical solution containing assembly 100a, the chemical solution may be pre-heated in the second chemical solution containing assembly 100b and then supplied to the first chemical solution containing assembly 100a.

[0062] The foregoing is a description of exemplary embodiments and should not be construed as limiting the disclosure. Although several exemplary embodiments have been described, it will be readily understood by those skilled in the art that many modifications may be made in some exemplary embodiments without substantially departing from the novel teachings and advantages of the present invention. Accordingly, all such modifications are intended to be included within the scope of the exemplary embodiments as defined in the claims.

Claims

1. A chemical solution containing assembly, comprising: a reservoir body configured to receive a chemical solution therein and formed of a non-conductive material, wherein a top of the reservoir body is at least partially open; a reservoir cap covering a partially opened top of the reservoir body to seal the interior of the reservoir body and formed of a material having a melting point higher than a heating temperature of the chemical solution; a heating member configured to heat the chemical solution in the reservoir body through the reservoir cover; and A liquid level sensor unit is mounted on a side wall of the reservoir body and is configured to measure at least one liquid level of the chemical solution in the reservoir body.

2. The chemical solution containing assembly according to claim 1, wherein: The reservoir body includes a resin-based material, and the reservoir cap includes a metal material.

3. The chemical solution containing assembly according to claim 1, wherein: The heating component comprises: a plurality of heater heads configured to penetrate the reservoir cover, the plurality of heater heads being arranged in a row or a zigzag shape on an upper surface of the reservoir cover; and A plurality of heating rods extend vertically downward from a lower surface of each of the plurality of heater heads and transfer heat to the chemical solution in the reservoir body.

4. The chemical solution containing assembly according to claim 3, wherein: The heating component further comprises: A radial heat dissipation plate extends in a plurality of radial directions in a predetermined vertical section of an outer peripheral surface of each of the plurality of heating rods.

5. The chemical solution containing assembly according to claim 4, wherein: When viewed from a plan view, the radial heat dissipation plate extends in four directions of up, down, left and right around each of the plurality of heating rods; as well as The heating component comprises: The first heating rod; a second heating rod, adjacent to the first heating rod; and A connection plate connects radial heat dissipation plates extending in left and right directions and extending in upper and lower directions on a side surface of each of the first heating rod and the second heating rod.

6. The chemical solution containing assembly according to claim 1, wherein: The reservoir body is connected to a circulation reservoir configured to circulate the chemical solution through a circulation connection line provided on one side wall of the reservoir body.

7. The chemical solution containing assembly according to claim 1, wherein: The liquid level sensor unit is an electric liquid level sensor to electrically measure a liquid level of the chemical solution in the reservoir body.

8. The chemical solution containing assembly according to claim 1, further comprising: At least one temperature sensor is configured to penetrate the reservoir cover.

9. The chemical solution containing assembly according to claim 1, wherein: The reservoir body is connected to a negative pressure supply member for collecting bubbles in the chemical solution by providing negative pressure in the reservoir body through a negative pressure connection line provided on the reservoir cover.

10. A chemical solution containing assembly, comprising: a reservoir body configured to receive a chemical solution therein and formed of a non-conductive material, wherein a top of the reservoir body is at least partially open; a reservoir cap covering a partially opened top of the reservoir body to seal the interior of the reservoir body and formed of a material having a melting point higher than a heating temperature of the chemical solution; a heating member configured to heat the chemical solution in the reservoir body through the reservoir cover; and A sealing member is disposed between an upper surface of the reservoir body and a lower surface of the reservoir cover to prevent the chemical solution from being exposed.

11. The chemical solution containing assembly according to claim 10, wherein: The reservoir body includes a resin-based material, and the reservoir cap includes a metal material.

12. The chemical solution containing assembly according to claim 11, wherein: The heating component comprises: a plurality of heater heads configured to penetrate the reservoir cover, the plurality of heater heads being arranged in a row or a zigzag shape on an upper surface of the reservoir cover; and A plurality of heating rods extend vertically downward from a lower surface of each of the plurality of heater heads and transfer heat to the chemical solution in the reservoir body.

13. The chemical solution containing assembly according to claim 12, wherein: The heating component further comprises: A radial heat dissipation plate extends in a plurality of radial directions in a predetermined vertical section of an outer peripheral surface of each of the plurality of heating rods.

14. The chemical solution containing assembly according to claim 13, wherein: When viewed from a plan view, the radial heat dissipation plate extends in four directions of up, down, left and right around each of the plurality of heating rods; as well as The heating component comprises: The first heating rod; a second heating rod, adjacent to the first heating rod; and A connection plate connects radial heat dissipation plates extending in left and right directions and extending in upper and lower directions on a side surface of each of the first heating rod and the second heating rod.

15. The chemical solution containing assembly according to claim 10, wherein: Also includes: A liquid level sensor unit is mounted on a side wall of the reservoir body and is configured to measure at least one liquid level of the chemical solution in the reservoir body.

16. The chemical solution containing assembly according to claim 15, wherein: The liquid level sensor unit is an electric liquid level sensor to electrically measure the liquid level of the chemical solution in the reservoir body.

17. The chemical solution containing assembly according to claim 10, further comprising: At least one temperature sensor is configured to penetrate the reservoir cover.

18. The chemical solution containing assembly according to claim 10, wherein: The reservoir body is connected to a negative pressure supply member for collecting bubbles in the chemical solution by providing negative pressure in the reservoir body through a negative pressure connection line provided on the reservoir cover.

19. An apparatus for supplying a chemical solution, comprising: An ink supply component storing a chemical solution; a first chemical solution containing assembly that receives the chemical solution from the ink supply member and stores the chemical solution in the first chemical solution containing assembly; as well as a second chemical solution containing assembly that receives the chemical solution from the first chemical solution containing assembly and stores the chemical solution in the second chemical solution containing assembly; Wherein, at least one of the first chemical solution containing component and the second chemical solution containing component comprises: a reservoir body configured to receive a chemical solution therein and formed of a non-conductive material, wherein a top of the reservoir body is at least partially open; a reservoir cap covering a partially opened top of the reservoir body to seal the interior of the reservoir body and formed of a material having a melting point higher than a heating temperature of the chemical solution; a heating member configured to heat the chemical solution in the reservoir body through the reservoir cover; and A liquid level sensor unit is mounted on a side wall of the reservoir body and is configured to measure at least one liquid level of the chemical solution in the reservoir body.

20. The apparatus for supplying a chemical solution according to claim 19, wherein: The heating component comprises: a plurality of heater heads configured to penetrate the reservoir cover, the plurality of heater heads being arranged in a row or a zigzag shape on an upper surface of the reservoir cover; and a plurality of heating rods extending vertically downward from a lower surface of each of the plurality of heater heads and transferring heat to the chemical solution in the reservoir body; and A radial heat dissipation plate extends in a plurality of radial directions in a predetermined vertical section of an outer peripheral surface of each of the plurality of heating rods.

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