CN217719582U - Axial diode, junction box and photovoltaic module - Google Patents

Abstract

The embodiment of the utility model provides an axial diode, terminal box and photovoltaic module are provided in the photovoltaic field, and the axial diode includes: a diode body; the diode comprises a diode body, and is characterized by further comprising a first bending pin and a second bending pin, wherein the first bending pin and the second bending pin are respectively connected with two opposite sides of the diode body, at least one of the first bending pin and the second bending pin is provided with a first bending part and a second bending part, and the bending degree of the first bending part is different from that of the second bending part. The utility model provides an axial diode, terminal box and photovoltaic module can promote the heat-sinking capability of terminal box at least.

Description

Axial diode, junction box and photovoltaic module

Technical Field

The embodiment of the utility model provides an embodiment relates to the photovoltaic field, in particular to axial diode, terminal box and photovoltaic module.

Background

Solar cells are devices that directly convert light energy into electrical energy by the photoelectric or photochemical effect. The single solar cell cannot be directly used as a power supply. The power supply must be composed of several single batteries connected in series, parallel and tightly packed. The solar cell module (also called solar panel) is a core part in a solar power generation system and is also the most important part in the solar power generation system. The solar energy is converted into electric energy, or the electric energy is sent to a storage battery for storage, or a load is pushed to work.

The solar cell module junction box is a connector between a solar cell array formed by solar cell modules and a solar charging control device, and is a cross-field comprehensive design combining electrical design, mechanical design and material science. The junction box of the solar cell module is very important in the composition of the solar cell module, and mainly plays a role in connecting electric power generated by the solar cell with an external circuit. The junction box is adhered to the back plate of the assembly through silica gel, the outgoing lines in the assembly are connected together through the internal lines in the junction box, and the internal lines are connected with the external cables to enable the assembly to be conducted with the external cables. The diode is arranged in the junction box, so that the component can work normally when being shielded from light. However, the diode and the box body need to be fixed inside the junction box, so that heat at the diode cannot be discharged in time, and the performance of the diode is affected.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an axial diode, terminal box and photovoltaic module have at least to do benefit to the heat-sinking capability that promotes the terminal box.

According to some embodiments of the utility model, the embodiment of the utility model provides an aspect provides an axial diode, include: a diode body; the diode comprises a diode body, a first bending pin and a second bending pin, wherein the diode body is provided with a first bending part and a second bending part, the first bending pin and the second bending pin are respectively connected with two opposite sides of the diode body, at least one of the first bending pin and the second bending pin is provided with the first bending part and the second bending part, and the bending degree of the first bending part is different from that of the second bending part.

In some embodiments, the axial diode is centrosymmetric.

In some embodiments, an angle between the bending direction of the first bending pin and the bending direction of the second bending pin is 180 °.

In some embodiments, at least one of the first bent pin and the second bent pin includes a first section, a first bent section, a second bent section, and a third section, the first section is connected to the diode body, and an extending direction of the first section is parallel to an axial direction of the diode body; the bending degree of the first bending part is greater than or equal to 90 degrees.

According to some embodiments of the present invention, the embodiment of the present invention further provides a terminal box, including the axial diode of any one of the above embodiments.

In some embodiments, the angle between the axial direction of the diode body and the long side direction of the junction box is an acute angle or an obtuse angle.

In some embodiments, further comprising: the conducting strip is electrically connected with at least one of the first bent pin and the second bent pin.

In some embodiments, the two adjacent side surfaces of the conducting strip are provided with extension parts, and the extension directions of the extension parts are different from the direction parallel to the surface of the conducting strip; and at least one of the first bent pin and the second bent pin penetrates through the interval and is electrically connected with the surface of the conducting strip.

In some embodiments, the sides of the conductive sheet are parallel to the third segment of the axial diode.

According to some embodiments of the present invention, the embodiment of the present invention further provides a photovoltaic module, including the junction box of any one of the above embodiments.

The embodiment of the utility model provides a technical scheme has following advantage at least:

in the axial diode provided by the utility model, the pin of the diode is designed to be a bent pin, and the bending degree of the first bent part is different from that of the second bent part, so that the length of the pin can be increased in a limited junction box, the volumes of the first bent pin and the second bent pin are increased, and the heat dissipation capacity of the junction box is improved; moreover, the first bending pin and the second bending pin can reduce installation space, are convenient to install and use, can also reduce the volume of the junction box, and reduce the area of the junction box for shielding the photovoltaic module, thereby improving the photoelectric conversion efficiency of the solar cell.

In addition, the minimum included angle between the axial direction of the diode body and the long side direction of the junction box is an acute angle, namely, the minimum included angle between the axial direction of the diode body and the long side direction of the junction box is more than 0 degree and less than 90 degrees. Therefore, the short edge width of the junction box does not need to be considered in the design of the diode body, the axial length of the diode body can be larger than the short edge width of the junction box, the diode body can be of any specification and parameter, the compatibility and the practicability of the junction box are improved, the pin of the diode can be designed to be large, the heat dissipation area is increased, and the heat dissipation capacity of the junction box is improved. The axial of diode body and the long edge direction of terminal box between be nonparallel again not perpendicular, the less technology of design bent angle is comparatively easy on the one hand, the distance between bent angle place and the diode body is great, and the stress that is difficult to produce when preparing the bent angle leads to the diode body to become invalid, is favorable to promoting the life-span of diode.

Drawings

One or more embodiments are illustrated by corresponding figures in the drawings, which are not to be construed as limiting the embodiments, unless expressly stated otherwise, and the drawings are not to scale.

Fig. 1 is a schematic perspective view of an axial diode according to an embodiment of the present invention;

FIG. 2 shows an embodiment of the present invention a top view of the provided axial diode;

fig. 3 isbase:Sub>A schematic view ofbase:Sub>A cross-sectional structurebase:Sub>A-base:Sub>A' of an axial diode according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a junction box according to an embodiment of the present invention;

fig. 5 is a schematic partial structure diagram of a junction box according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another junction box according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another junction box according to an embodiment of the present invention.

Detailed Description

As can be seen from the background art, the heat dissipation capability of the junction box of the prior art is not good enough.

Analysis finds that one of the reasons for poor heat dissipation capability of the junction box is as follows: the traditional junction box is of an integrated structure, is quick to operate and convenient to maintain, but due to the existence of an electric appliance terminal, the photovoltaic junction box is large in size and poor in heat dissipation performance; after the axial diode is arranged in the junction box, the diode needs to be filled with sealant for fixation, the heat conducting performance of the sealant is poor, the heat dissipation of the diode can be affected, the heat dissipation effect of the box body is poor, and therefore the heat generated by the diode cannot be discharged, and the diode fails due to overhigh heat.

The embodiment of the utility model provides an axial diode, terminal box and photovoltaic module, design the pin of diode into the bending pin, and the degree of bending of first kink is different with the degree of bending of second kink, can increase the length of pin in limited terminal box, increase the volume of first bending pin and second bending pin, promote the heat-sinking capability of terminal box; moreover, the first bending pins and the second bending pins can reduce installation space, are convenient to install and use, can also reduce the volume of the junction box, and reduce the area of the photovoltaic module sheltered from by the junction box, so that the photoelectric conversion efficiency of the solar cell is improved.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in the examples of the present application, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.

Fig. 1 is a schematic perspective view of an axial diode according to an embodiment of the present invention; fig. 2 is a top view of an axial diode according to an embodiment of the present invention; fig. 3 isbase:Sub>A schematic view ofbase:Sub>A cross-sectional structurebase:Sub>A-base:Sub>A' of an axial diode according to an embodiment of the present invention. In the structure diagrams shown in fig. 1 to 3, the structures of the conductive sheets are shown in fig. 1 to 3 for explaining the positional relationship and the connection relationship between the axial diode and the conductive sheet in the terminal box.

According to some embodiments of the present invention, an aspect of the embodiments of the present invention provides an axial diode, refer to fig. 1-3, include: a diode body 100; the diode body 100 includes a first bending pin 111 and a first bending pin 112, the first bending pin 111 and the first bending pin 112 are respectively connected to two opposite sides of the diode body 100, at least one of the first bending pin 111 and the first bending pin 112 has a first bending portion and a second bending portion, and a bending degree of the first bending portion is different from a bending degree of the second bending portion.

In some embodiments, axial diodes are connected in anti-parallel with the cell string of the photovoltaic module, the axial diodes being used to protect the solar panel circuitry. The principle is as follows: the axial diode is used for doing the electronic components that one-way current switched on, and the battery panel charges for the battery daytime usually, and the voltage of panel is lower than the battery night, and in order to prevent that the battery from charging for solar cell panel night in turn, the harm panel, so will add the diode that prevents the reverse charging, prevent that the electric current from the battery flow to solar cell panel.

In some embodiments, the diode body 100 may be a pillar structure, i.e., the cross-sectional shape of the diode body 100 is circular. The diode body 100 includes a first end surface and a second end surface which are oppositely arranged, the first bent pin 111 is connected with the first end surface of the diode body 100, and the first bent pin 112 is connected with the second end surface of the diode body 100.

In some embodiments, the bending design of the first bending pin 111 and the bending design of the first bending pin 112 can increase the length of the pins in a limited junction box, increase the volume of the first bending pin 111 and the first bending pin 112, and further improve the heat dissipation capability of the junction box; moreover, the bent pins can reduce the installation space, are convenient to install and use, can also reduce the volume of the junction box, and reduce the area of the photovoltaic module sheltered by the junction box, thereby improving the photoelectric conversion efficiency of the solar cell.

In some embodiments, an included angle between the bending direction M of the first bending pin 111 and the bending direction N of the first bending pin 112 is greater than 0 ° and less than 360 °, so that the extending directions of the first bending pin 111 and the first bending pin 112 are different and do not overlap, and when the diode body 100 works, the heat dissipation of the box bodies located at the two sides of the diode body 100 is uniform, which is more beneficial to heat dissipation. It is understood that the bending direction M of the first bent pin 111 can be regarded as the extending direction of the end of the first bent pin 111, or the overall direction of the first bent pin 111. The axial diode is centrosymmetric, that is, the first bending pin 111 and the first bending pin 112 are centrosymmetric, so that the first bending pin 111 and the second bending pin 112 are centrosymmetric, and the heat dissipation at the two sides of the diode body 100 is in a balanced state, which can prolong the service life of the diode body 100. An included angle between the bending direction M of the first bending pin 111 and the bending direction N of the first bending pin 112 is 180 °.

In some embodiments, the bending direction M of the first bending pin 111 is not parallel to and perpendicular to the axial direction of the diode body 100; the bending direction N of the first bending pin 112 is not parallel to and perpendicular to the axial direction of the diode body 100, the axial diode is N-type, and the diode body 100 is located in the center of the N-type.

In some embodiments, the first bent pin 111 and the first bent pin 112 have a first bent portion and a second bent portion. Specifically, the first bending pin 111 includes a first segment 101, a first bending segment 102, a second segment 103, a second bending segment 104, and a third segment 105, which are connected, the first segment 101 is connected to the diode body 100, and a bending degree a of the first bending segment 102 is different from a bending degree b of the second bending segment 104; the first bending pin 112 includes a fourth segment 106, a third bending segment 107, a fifth segment 108, a fourth bending segment 109 and a sixth segment 110, which are connected to each other, the fourth segment 106 is connected to the diode body 100, and a bending degree c of the third bending segment 107 is different from a bending degree d of the fourth bending segment 108.

In some embodiments, the degree of bend a of the first bend segment 102 is greater than or equal to 90 °. When the first bending pin 111 is manufactured, the bending degree of the pin is too large, which may cause bending stress to enter the diode body 100, causing failure of the diode, so that the bending degree a of the first bending section 102 is greater than or equal to 90 degrees, which can prevent the diode from failing, and the bending angle required by bending a large representative pin is small, which has a simpler manufacturing process, reduces the process difficulty and saves the cost. The degree of bending b of the second bending section 104 is greater than or equal to 90 °. The first bending pin 111 includes the first bending section 102 and the second bending section 104, and the length of the first bending pin 111 can be increased, so that the specific surface area of the first bending pin 111 is increased, the heat dissipation effect of the junction box is improved, and the service life of the diode is prolonged. And the bending degrees of the first bending section 102 and the second bending section 104 are both larger than or equal to 90 degrees, the preparation process is simple, and therefore the production yield of the axial diode is improved. The effect and the bending degree of the third bending section 107 and the fourth bending section 109 are the same as or similar to the effect and the bending degree of the first bending section 102 and the second bending section 104, and are not described in detail herein.

In some embodiments, referring to fig. 3, the cross-sectional shapes of the first bent pins 111 and the first bent pins 112 are circular or elliptical. In other embodiments, the middle part or the end part of at least one of the first bent pin or the second bent pin is designed to be a flat part, and the cross section of the flat part is oblate and rectangular; or the flat part is in a structure that the upper surface and the lower surface are planes, and the left wall surface and the right wall surface are cambered surfaces. The thickness of flat portion is less, and specific surface is great, and heat radiating area is great, more does benefit to the heat dissipation, promotes the heat-sinking capability of terminal box. The surface of flat design is great, more does benefit to the busbar, welds area and conducting strip and the connection of flat portion, and area of contact is great to it is more firm to make the conducting strip be connected with flat portion, has guaranteed the structural stability of terminal box. The first bending pin 111 is an integrally formed structure, i.e., the flat portion is formed through a hot-pressing process.

In the axial diode provided by the utility model, the pin of the diode is designed to be a bent pin, and the bending degree of the first bent part is different from that of the second bent part, so that the length of the pin can be increased in a limited junction box, the volumes of the first bent pin 111 and the first bent pin 112 are increased, and the heat dissipation capacity of the junction box is improved; moreover, the first bending pins 111 and the first bending pins 112 can reduce the installation space, facilitate installation and use, reduce the volume of the junction box, and reduce the area of the photovoltaic module shielded by the junction box, thereby improving the photoelectric conversion efficiency of the solar cell.

Fig. 4 is a schematic structural diagram of a junction box according to an embodiment of the present invention; fig. 5 is a schematic partial structure diagram of a junction box according to an embodiment of the present invention; fig. 6 is a schematic structural diagram of another junction box according to an embodiment of the present invention; fig. 7 is a schematic structural diagram of another junction box according to an embodiment of the present invention. Fig. 5 is a partial schematic structural view of the junction box shown in fig. 4 with the axial diode removed.

Correspondingly, referring to fig. 4 to 7, another embodiment of the present invention further provides a junction box including the axial diode of any one of the above embodiments. A terminal block according to another embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In some embodiments, the junction box comprises a three-part junction box including a positive junction box, a negative junction box, and an intermediate junction box disposed between the positive and negative junction boxes. In other embodiments, the junction box comprises an integral junction box, i.e. the integral junction box comprises three diodes, and the diodes on two sides are respectively connected with the positive connector and the negative connector. The forward voltage drop of the axial diode is inversely proportional to the leakage current, and the number and the positions of the junction boxes are calculated according to the short-circuit current and the open-circuit voltage of the photovoltaic module.

Referring to fig. 4 and 5, the negative terminal box is connected to the negative connector of the solar charging control device, and the negative terminal box includes a box body 200, a box cover, a fixing opening 201, a notch 204, a positioning groove 202, and a connecting structure 205. The case 200 constitutes a receiving groove for receiving the axial diode; box body 200 and lid mutually support and constitute the closed groove, avoid being located the inside electronic component performance of terminal box and receive the influence of solid and liquid pollutants such as water and dust in the external environment. The box cover and the box body 200 can be made of anti-aging materials or insulating materials with strong ultraviolet resistance, so that the risk of electric shock of workers is avoided. The fixed port 201 is used for placing an axial diode; the notch 204 is used for connecting the first bus bar and the second bus bar with the axial diode in a penetrating way; the positioning groove 202 is used for positioning the axial diode and the position of the box body 200; the connecting structure 205 increases the heat dissipation area, thereby further improving the heat dissipation performance of the junction box.

In some embodiments, further comprising: and the conductive sheet is electrically connected with at least one of the first bent pin 111 and the first bent pin 112. In a specific example, the conductive sheets include a first conductive sheet 121 and a second conductive sheet 122, the first conductive sheet 121 is connected to the other end of the first bent pin 111 away from the diode body 100, and the second conductive sheet 122 is connected to the other end of the first bent pin 112 away from the diode body 100. The first conductive sheet 121 and the second conductive sheet 122 are mainly used to increase the area of the end portions of the first bent pin 111 and the first bent pin 112, so that heat generated by the diode body 100 can be quickly conducted out, and the work of the diode body 100 is prevented from being affected.

In some embodiments, the first bent pin 111 is located on a side of the first conductive sheet 121 facing the bottom surface of the case 200, a side of the first conductive sheet 121 away from the bottom surface of the case 200, or inside the first conductive sheet 121. For example, as shown in fig. 1 and fig. 3, the first bent pin 111 is located on one side of the first conductive sheet 121 facing the box 200, and then the first conductive sheet 121 and the first bent pin 111 are fixed by welding, so that the fixed relationship between the first conductive sheet 121 and the first bent pin 111 is firmer, the contact area is larger, that is, the heat conduction area is larger, which is beneficial to improving the heat dissipation capability of the junction box. The area of the contact surface between the first conductive sheet 121 and the first bent pin 111 is 30% -100% of the surface area of the first bent pin 111 facing the first conductive sheet 121, and the larger the heat conduction area is, the better the firmness is and the larger the heat conduction area is. The connection position or connection structure between the second bent pin 112 and the second conductive sheet 122 may be the same as the connection structure of the first bent pin 111 and the first conductive sheet 121. The side of the conducting strip is parallel to the third segment of the axial diode. Specifically, the side of the first conductive sheet 121 facing one end of the axial diode is parallel to the extending direction of the third segment 105; the side of the second conducting strip 122 facing the end of the axial diode is parallel to the extending direction of the sixth segment 110.

In some embodiments, the conductive sheet has a through-hole 123 through the thickness of the conductive sheet, the through-hole 123 being used to assist in securing the axial diode to the can 200. The side of the conductive sheet has an extension 125, and the extension direction of the end of the extension 125 far away from the conductive sheet surface is different from the direction parallel to the conductive sheet surface. The extension 125 can increase the specific surface area of the conductive sheet and increase the heat dissipation area, thereby improving the heat dissipation performance of the junction box. The adjacent extending portions have a gap therebetween, and at least one of the first bent pins 111 and the first bent pins 112 penetrates the gap to be electrically connected with the surface of the conductive sheet. The conducting strip is a copper sheet. In other embodiments, a side of the first conductive sheet facing the axial diode has a protrusion for increasing a contact area between the first conductive sheet and the first bent pin, and the first conductive sheet is L-shaped. The first conducting plate and the second conducting plate are in a central symmetry structure, so that the first conducting plate and the second conducting plate are better matched with the axial diode.

In some embodiments, the junction box further comprises: and a fixing structure 203, wherein the fixing structure 203 is used for fixing the axial diode. Specifically, the fixing structure 203 fixes the first bent pin 111 and the first bent pin 112 between the conductive sheet and the case 200 by fixedly connecting the first segment and the bottom of the case and the conductive sheet and the bottom of the case. Thus, the fixing structure is fixedly connected with the two ends of the first bending pin 111 and the two ends of the first bending pin 112, so that the connection is firmer, and the junction box is prevented from being separated from the axial diode and the box body 200 in the moving process. The fixing structure 203 is a hot rivet structure or a snap structure. The riveting point of the hot riveting structure is fixed, so that the box body of the junction box is not required to be designed, only one hot fixing step is required to be added, the preparation process is simple, and the assembly efficiency is high. Moreover, compare with buckle structure, the size of box body and the size of axial diode need not be considered in the hot riveting structure to promote the compatibility between terminal box and the axial diode, promote the practicality of terminal box.

In some embodiments, the junction box has adjacent long sides and short sides. An included angle e between the axial direction of the diode body 100 and the long side direction L of the junction box is an acute angle, namely, the included angle e between the axial direction of the diode body 100 and the long side direction L of the junction box is more than 0 degree and less than e and less than 90 degrees. Therefore, the design of the diode body 100 does not need to consider the width of the short side of the junction box, that is, the axial length of the diode body 100 can be larger than the width of the short side of the junction box, and the diode body 100 can be in any specification and parameter, so that the compatibility and the practicability of the junction box are improved. The axial direction of the diode body 100 is not parallel to the long side direction L of the junction box, the design process of the smaller angle of the bending angle is easy, the distance between the position of the bending angle and the diode body 100 is large, the stress generated when the bending angle is prepared is not easy to cause the failure of the diode body 100, and the service life of the diode is prolonged. In other embodiments, the angle e between the axial direction of the diode body 100 and the long side direction L of the junction box is an obtuse angle.

The positive terminal box shown in fig. 6 and the intermediate terminal box shown in fig. 7 are the same or similar to the internal components of the negative terminal box shown in fig. 4, and will not be described in detail herein.

According to some embodiments of the present invention, the embodiment of the present invention further provides a photovoltaic module, including the junction box of any one of the above embodiments.

In some embodiments, the bus bars include a first bus bar and a second bus bar. A first bus bar electrically connected to the first conductive sheet 121; and a second bus bar electrically connected to the second conductive sheet 122. The first bus bar can be a positive bus bar, and the positive bus bar is connected with a positive leading-out end of a battery assembly of the photovoltaic assembly; the second bus bar may be a negative bus bar connected to a negative terminal of a cell assembly of the photovoltaic assembly. The first bus bar is welded to the first conductive sheet 121, the second bus bar is welded to the second conductive sheet 122, and the welding is firm and includes laser welding, resistance welding or melting with a tin soldering iron.

In some embodiments, the axial diodes may be bypass diodes, which are typically connected to the central bus bar, which may prevent the number of strings of cells connected in parallel with the end bus bars from being too large, exceeding the reverse bias limit of the solar cells, and damaging the photovoltaic module. If no hot spot effect occurs, no path exists in the axial diode, and no current passes through the middle bus bar, so that the power of the component is not reduced, and the power of the component is slightly improved; if the module generates hot spot effect when generating electricity outdoors, the middle bus bar can provide more current paths for the current because the current follows the principle of the lowest path of resistance, and other feasible paths are ensured for the current, so that the current is enabled to avoid the battery piece generating the hot spot, the hot spot effect is reduced, and the purpose of increasing the generated energy is achieved.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of implementations of the present application, and that various changes in form and details may be made therein without departing from the spirit and scope of the present application. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the application, and it is intended that the scope of the application be limited only by the claims appended hereto.

Claims (10)

1. An axial diode, comprising:

a diode body;

the diode comprises a diode body, a first bending pin and a second bending pin, wherein the diode body is provided with a first bending part and a second bending part, the first bending pin and the second bending pin are respectively connected with two opposite sides of the diode body, at least one of the first bending pin and the second bending pin is provided with the first bending part and the second bending part, and the bending degree of the first bending part is different from that of the second bending part.

2. The axial diode of claim 1, wherein the axial diode is centrosymmetric.

3. The axial diode of claim 2, wherein an angle between a bending direction of the first bent pin and a bending direction of the second bent pin is 180 °.

4. The axial diode of claim 3, wherein at least one of the first bent pin and the second bent pin comprises a first segment, the first bent portion, a second segment, the second bent portion, and a third segment, the first segment is connected to the diode body, and the first segment extends in a direction parallel to the axial direction of the diode body; the bending degree of the first bending part is greater than or equal to 90 degrees.

5. Junction box, characterized in that it comprises an axial diode according to any one of claims 1 to 4.

6. The junction box of claim 5, wherein an angle between an axial direction of the diode body and a long side direction of the junction box is an acute angle or an obtuse angle.

7. The junction box of claim 5, further comprising: and the conductive sheet is electrically connected with at least one of the first bent pin and the second bent pin.

8. The junction box of claim 7, wherein the adjacent two sides of the conductive sheet have extensions, and the extension direction is different from the direction parallel to the surface of the conductive sheet; and at least one of the first bent pin and the second bent pin penetrates through the interval and is electrically connected with the surface of the conducting strip.

9. The junction box of claim 7, wherein a side of said conductive tab is parallel to a third segment of said axial diode.

10. A photovoltaic module, comprising: a junction box as claimed in any one of claims 5 to 9.

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