CN212453123U

CN212453123U - Function board

Info

Publication number: CN212453123U
Application number: CN202020671351.6U
Authority: CN
Inventors: 吴赠湾
Original assignee: Chengdu Huiduoli Acoustic Decoration Materials Co ltd
Current assignee: Chengdu Huiduoli Acoustic Decoration Materials Co ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-02-02
Anticipated expiration: 2030-04-28

Abstract

The embodiment of the utility model provides a function board, the function board comprises a sound-insulation vibration-damping sealing gasket, and the sound-insulation vibration-damping sealing gasket comprises a first board part and a second board part which are integrally formed; the first plate portion and the second plate portion are identical in shape; the first edge of the first plate portion is parallel to the first edge of the second plate portion, and the first edge of the first plate portion and the first edge of the second plate portion are on different planes; the sound-proof vibration-damping sealing gasket can insulate sound. When the sealing gasket is used, the two sound-insulation vibration-reduction sealing gaskets are directly spliced in a staggered manner, so that the sealing gasket with good sealing performance and larger size can be obtained. Therefore, the gap between the two sealing gaskets is staggered, sound, light, water, radiation, signals and the like are not easy to transmit, and the blocking performance is good.

Description

Function board

Technical Field

The utility model relates to a panel field particularly, relates to a function board.

Background

At present, the plates for blocking sound, water and light are all integrated, and the materials of the integrated blocking plates are the same. But in fields such as give sound insulation, waterproof, radiation protection, the inconvenient installation and the transportation of the big separation panel of monoblock, and neat fritter panel has spliced the gap, and sound wave, water, radiation are beated etc. and are worn out from the gap easily, and the separation effect is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a function board, it aims at improving the above-mentioned not enough that exists among the prior art.

The embodiment of the utility model provides a function board, the function board comprises a sound-insulation vibration-damping sealing gasket, and the sound-insulation vibration-damping sealing gasket comprises a first board part and a second board part which are integrally formed;

the first plate portion and the second plate portion are identical in shape;

the first edge of the first plate portion is parallel to the first edge of the second plate portion, and the first edge of the first plate portion and the first edge of the second plate portion are on different planes;

the sound-proof vibration-damping sealing gasket can insulate sound.

Optionally, the first plate portion is made of a functional material, and the functional material at least includes one of a damping material, a light absorbing material, a waterproof material, a radiation-proof material, a signal absorbing material, and a signal shielding material.

Optionally, the first plate portion and the second plate portion are made of the same material.

Optionally, the function board further includes a first board;

the first plate is arranged on one side, far away from the second plate, of the first plate.

Optionally, the first plate portion and the second plate portion are integrally formed.

Optionally, the function board further includes a second board;

the second plate is arranged on one side, far away from the first plate, of the second plate.

Optionally, the first plate portion, the second plate portion and the second plate are integrally formed.

Optionally, the functional board at least further comprises a third board part and a fourth board part which are integrally formed;

the third plate portion and the fourth plate portion have the same shape as the first plate portion;

the first edge of the third panel portion is parallel to the first edge of the fourth panel portion and the first edge of the third panel portion is on a different plane than the first edge of the fourth panel portion;

the first edge of the first plate portion is in parallel connection with the first edge of the third plate portion; the first edge of the second plate portion is in parallel contact with the first edge of the fourth plate portion;

the first plate part and the fourth plate part are arranged in a staggered mode, and the second plate part and the third plate part are arranged in a staggered mode.

Optionally, the functional board at least further comprises a third board and a fourth board which are not integrally formed;

the third plate and the fourth plate have the same shape as the first plate portion;

the first edge of the first plate part is connected with the first edge of the third plate in parallel; the first edge of the second plate portion is connected in parallel with the first edge of the fourth plate portion;

the first plate part and the fourth plate are arranged in a staggered mode, and the second plate part and the third plate are arranged in a staggered mode.

Optionally, the function board further includes a fifth board portion, and the fifth board portion, the first board portion and the second board portion are integrally formed;

the shape of the fifth plate portion is the same as the shape of the second plate portion;

the first edge of the fifth panel portion is parallel to the first edge of the second panel portion, the first edge of the fifth panel portion is on a different plane than the first edge of the second panel portion, and the first edge of the fifth panel portion is on a different plane than the first edge of the first panel portion.

Optionally, the fifth plate portion, the first plate portion and the second plate portion are made of the same material.

Optionally, the function board further includes a first board;

Optionally, the first plate, the fifth plate, the first plate and the second plate are integrally formed.

Optionally, the function board further includes a second board;

the second plate is arranged on one side, far away from the first plate, of the fifth plate.

Optionally, the second plate, the first plate, the fifth plate, the first plate and the second plate are integrally formed.

Optionally, the functional board at least further comprises a sixth board part, a third board part and a fourth board part which are integrally formed;

the shapes of the sixth plate portion, the third plate portion, and the fourth plate portion are the same as the shape of the first plate portion;

a first edge of the sixth panel portion being parallel to a first edge of the third panel portion, the first edge of the sixth panel portion being on a different plane than the first edge of the fourth panel portion;

the first edge of the first plate portion is in parallel connection with the first edge of the third plate portion; the first edge of the second plate portion is in parallel contact with the first edge of the fourth plate portion; a first edge of the fifth plate portion is in parallel contact with a first edge of the sixth plate portion;

the first plate portion and the fourth plate portion are arranged in a staggered mode, the second plate portion and the third plate portion are arranged in a staggered mode, and the sixth plate portion and the second plate portion are arranged in a staggered mode.

Optionally, the sixth plate portion, the third plate portion, and the fourth plate portion are made of the same material as the first plate portion.

Optionally, the functional board at least further includes a sixth board, a third board and a fourth board which are not integrally formed;

the sixth plate, the third plate, and the fourth plate have the same shape as the first plate portion;

the first edge of the first plate part is connected with the first edge of the third plate in parallel; the first edge of the second plate portion is connected in parallel with the first edge of the fourth plate portion; a first edge of the fifth plate portion is connected in parallel with a first edge of the sixth plate;

the first plate part and the fourth plate part are arranged in a staggered mode, the second plate part and the third plate part are arranged in a staggered mode, and the sixth plate part and the second plate part are arranged in a staggered mode.

Optionally, the second edge of the first plate portion is parallel to the second edge of the second plate portion, and the second edge of the first plate portion and the second edge of the second plate portion are on different planes.

Optionally, the second edge of the first plate portion is perpendicular to the first edge of the first plate portion, and the second edge of the second plate portion is perpendicular to the first edge of the second plate portion.

Optionally, the second edge of the first plate portion and the second edge of the second plate portion are on the same plane and parallel, or a section of the second edge of the first plate portion is connected to a section of the second edge of the second plate portion.

Optionally, the edge of the first plate is flush with the edge of the first plate portion.

Optionally, the first plate portion and the second plate portion are made of different materials.

Optionally, the fifth plate portion, the first plate portion and the second plate portion are integrally formed and made of different materials.

Compared with the prior art, the utility model discloses following beneficial effect has:

Additional features and advantages of embodiments of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a cross-sectional view of a function board 100 according to an embodiment of the present invention.

Fig. 2 shows a schematic structural diagram of a function board 100 according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of another functional board 100 according to an embodiment of the present invention.

Fig. 4 is a cross-sectional view of another functional board 100 provided in the embodiment of the present invention.

Fig. 5 is a schematic structural diagram of another functional board 100 according to an embodiment of the present invention.

Fig. 6 shows a schematic structural diagram of another functional board 100 according to an embodiment of the present invention.

Fig. 7 shows a schematic structural diagram of another function board 100 according to an embodiment of the present invention.

Fig. 8 is a cross-sectional view of still another functional board 100 according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of another functional board 100 according to an embodiment of the present invention.

Fig. 10 is a schematic structural diagram of another functional board 100 according to an embodiment of the present invention.

Fig. 11 shows a schematic structural diagram of another function board 100 according to an embodiment of the present invention.

Fig. 12 shows a schematic structural diagram of another function board 100 according to an embodiment of the present invention.

Fig. 13 is a cross-sectional view of still another functional board 100 according to an embodiment of the present invention.

Icon: a function board 100; a sound-insulating vibration-damping gasket 200; a first plate portion 210; a second plate portion 220; a third plate portion 230; a fourth plate portion 240; a first plate 110; a second plate 120; a fifth plate portion 250; a third plate 130; a fourth plate 140; a sixth plate 160.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Examples

An embodiment of the present invention provides a performance board 100, as shown in fig. 1 and 2, the performance board 100 includes a sound-proof vibration-damping gasket 200, the sound-proof vibration-damping gasket 200 includes a first board portion 210 and a second board portion 220 which are integrally formed. The first plate portion 210 and the second plate portion 220 have the same shape, a first edge of the first plate portion 210 is parallel to a first edge of the second plate portion 220, and the first edge of the first plate portion and the first edge of the second plate portion are on different planes; the sound-proofing vibration-damping gasket 200 can insulate sound.

When the sound-proof vibration-damping sealing gasket is used, the two sound-proof vibration-damping sealing gaskets 200 are directly spliced in a staggered mode, and a sealing gasket with good sealing performance and larger size can be obtained. Therefore, the gap between the two sealing gaskets is staggered, sound, light, water, radiation, signals and the like are not easy to transmit, and the blocking performance is good. Specifically, referring to fig. 3 and 4, optionally, the function board 100 further includes at least a third board portion 230 and a fourth board portion 240 that are integrally formed. The integrally formed third plate portion 230 and fourth plate portion 240 constitute another sound-insulating vibration-damping gasket 200. The third plate portion 230 and the fourth plate portion 240 have the same shape as the first plate portion 210, a first edge of the third plate portion 230 is parallel to a first edge of the fourth plate portion 240, and the first edge of the third plate portion 230 and the first edge of the fourth plate portion 240 are on different planes. A first edge of the first plate portion 210 is in parallel contact with a first edge of the third plate portion 230, and a first edge of the second plate portion 220 is in parallel contact with a first edge of the fourth plate portion 240. The first plate portion 210 and the fourth plate portion 240 are disposed offset from each other, and the second plate portion 220 and the third plate portion 230 are disposed offset from each other. The acoustic damping gasket 200 may be a rigid material or a flexible material.

Alternatively, the third plate portion 230 and the fourth plate portion 240 may be made of the same material as the first plate portion 210 or different materials.

Optionally, a second edge of the first plate portion 210 is parallel to a second edge of the second plate portion 220, and the second edge of the first plate portion 210 and the second edge of the second plate portion 220 are on different planes. The second edge of the first plate portion 210 is perpendicular to the first edge of the first plate portion 210, and the second edge of the second plate portion 220 is perpendicular to the first edge of the second plate portion 220. Therefore, even if the function board 100 is transversely and longitudinally spliced and expanded, the blocking performance of the function board 100 can be guaranteed in all directions, and the functions of water resistance, sound insulation, radiation protection, signal shielding and the like of the function board 100 are improved.

Optionally, the second edge of the first plate portion 210 and the second edge of the second plate portion 220 are on the same plane and parallel, or a section of the second edge of the first plate portion 210 is connected to a section of the second edge of the second plate portion 220.

Optionally, the first plate portion 210 is made of a functional material, and the functional material at least includes one of a damping material, a light absorbing material, a waterproof material, a radiation-proof material, a signal absorbing material, and a signal shielding material, so that the first plate portion 210 can have at least one of sound insulation, light absorption, water resistance, radiation protection, signal absorption, and signal shielding functions.

Optionally, the first plate portion 210 and the second plate portion 220 are made of the same material, and the first plate portion 210 and the second plate portion 220 may also be made of different materials.

When it is necessary to add functions such as vibration damping and sound absorption to the sound-proof vibration-damping gasket 200, a plate having another function is provided to the sound-proof vibration-damping gasket 200. Optionally, as shown in fig. 5, the function board 100 further includes a first board 110, and the first board 110 is disposed on a side of the first board portion 210 away from the second board portion 220. The first plate 110 may be an open-cell plate made of an open-cell material or a closed-cell plate made of a closed-cell material. Optionally, the first plate 110 is used for sound absorption, sound insulation, heat absorption, vibration damping, radiation absorption, and the like. Alternatively, the first plate 110 is the same shape as the first plate portion 210, and the first plate 110 is aligned with an edge of the first plate portion 210.

Alternatively, the edge of 110 is flush with the edge of the first plate portion 210 [ A1 ].

Optionally, the first plate 110 and the first plate portion 210 are stacked in a staggered manner.

Optionally, the first plate 110, the first plate portion 210 and the second plate portion 220 are integrally formed.

Optionally, as shown in fig. 6, the function board 100 further includes a second board 120, and the second board 120 is disposed on a side of the second board portion 220 away from the first board portion 210. The second plate 120 may be an open-cell plate made of an open-cell material or a closed-cell plate made of a closed-cell material. Alternatively, the second plate 120 is the same shape as the second plate portion 220, and the second plate 120 is aligned with an edge of the second plate portion 220. The second plate 120, the first plate portion 210, and the second plate portion 220 are integrally formed.

The edge of 120 is flush with the edge of the second plate portion 220.

Optionally, the second plates 120 and the second plate portions 220 are stacked in a staggered manner. [A2]

Alternatively, as shown in fig. 7. The first plate 110 may be disposed on a side of the first plate portion 210 away from the second plate portion 220, and the second plate 120 may be disposed on a side of the second plate portion 220 away from the first plate portion 210. Optionally, the first plate 110 is identical to the first plate portion 210 in shape, and the edge of the first plate 110 is aligned with the edge of the first plate portion 210, and the second plate 120 is identical to the second plate portion 220 in shape, and the edge of the second plate 120 is aligned with the edge of the second plate portion 220.

Optionally, the first plate 110, the first plate portion 210, the second plate portion 220 and the second plate 120 are integrally formed.

Optionally, the function board 100 further includes at least a third board 130 and a fourth board 140 that are not integrally formed. As shown in fig. 8, the third plate and the fourth plate have the same shape as the first plate portion 210. The first edge of the first plate portion 210 is in parallel contact with the first edge of the third plate, and the first edge of the second plate portion 220 is in parallel contact with the first edge of the fourth plate. The first plate portion 210 and the fourth plate are disposed in a staggered manner, and the second plate portion 220 and the third plate are disposed in a staggered manner.

Optionally, as shown in fig. 9, the functional board 100 further includes a fifth board portion 250, and the fifth board portion 250, the first board portion 210 and the second board portion 220 are integrally formed. The fifth plate portion 250 has the same shape as the second plate portion 220. A first edge of the fifth plate portion 250 is parallel to a first edge of the second plate portion 220, the first edge of the fifth plate portion 250 is on a different plane than the first edge of the second plate portion 220, and the first edge of the fifth plate portion 250 is on a different plane than the first edge of the first plate portion 210.

Optionally, a second edge of the fifth board portion 250 is parallel to a second edge of the second board portion 220, the second edge of the fifth board portion 250 is on a different plane than the second edge of the second board portion 220, and the second edge of the fifth board portion 250 is on a different plane than the second edge of the first board portion 210.

Optionally, the first edge and the second edge are perpendicular.

Optionally, the fifth plate portion 250, the first plate portion 210 and the second plate portion 220 are made of the same material, and the pages may be different or two of them may be the same.

In the case where the performance board 100 includes three layers (the fifth board portion 250, the first board portion 210, and the second board portion 220), as shown in fig. 10, the first board 110 included in the performance board 100 is disposed on the side of the first board portion 210 away from the second board portion 220.

Optionally, the first plate 110, the fifth plate 250, the first plate 210 and the second plate 220 are integrally formed.

Optionally, as shown in fig. 11, the function board 100 further includes a second board 120 disposed on a side of the fifth board portion 250 away from the first board portion 210.

Optionally, the second plate 120, the first plate 110, the fifth plate 250, the first plate 210 and the second plate 220 are integrally formed.

As shown in fig. 12, the function board 100 further includes at least a sixth board portion 260, a third board portion 230, and a fourth board portion 240 which are integrally formed.

The shapes of the sixth plate part 260, the third plate part 230, and the fourth plate part 240 are the same as the shape of the first plate part 210; a first edge of the sixth plate portion 262 is parallel to a first edge of the third plate portion 230, a first edge of the sixth plate portion 260 is on a different plane than a first edge of the third plate portion 230, and a first edge of the sixth plate portion 260 is on a different plane than a first edge of the fourth plate portion 0240. A first edge of the first plate portion 210 is in parallel contact with a first edge of the third plate portion 230; a first edge of the second plate portion 220 is in parallel contact with a first edge of the fourth plate portion 240; a first edge of the fifth plate portion 250 is in parallel contact with a first edge of the sixth plate portion 260. The first plate portion 210 and the fourth plate portion 240 are disposed in a staggered manner, the second plate portion 220 and the third plate portion 230 are disposed in a staggered manner, and the sixth plate portion 260 and the second plate portion 220 are disposed in a staggered manner.

Alternatively, the materials of the sixth plate portion 260, the third plate portion 230, and the fourth plate portion 240 are the same as the material of the first plate portion 210.

Optionally, as shown in fig. 13, the functional board 100 further includes at least a sixth board 160, a third board 130 and a fourth board 140 that are not integrally formed; the sixth plate 160, the third plate, and the fourth plate 140 have the same shape as the first plate portion 210; a first edge of the first plate portion 210 is connected in parallel with a first edge of the third plate 130; a first edge of the second plate portion 220 is in parallel contact with a first edge of the fourth plate 140; a first edge of the fifth plate portion 250 is in parallel contact with a first edge of the sixth plate 160; the first plate portion 210 and the fourth plate portion 240 are disposed in a staggered manner, the second plate portion 220 and the third plate portion 230 are disposed in a staggered manner, and the sixth plate portion 160 and the second plate portion 220 are disposed in a staggered manner.

As described above, the sound-insulating vibration-damping gasket 200 may be formed of two or three integrally formed plate portions staggered in a stepped manner, and the material of each layer may be the same or different or two or more layers may be the same. The function board 100 may be formed by splicing a plurality of boards made of different materials with the sound-insulating vibration-damping gasket 200 in a staggered manner, or formed by splicing a plurality of boards made of the same material with the sound-insulating vibration-damping gasket 200 in a staggered manner, or formed by splicing a plurality of sound-insulating vibration-damping gaskets 200. The materials of the first plate portion 210, the second plate portion 220, the third plate portion 230, the fourth plate portion 240, the first plate 110, the second plate 120, the fifth plate portion 250, the third plate 130, the fourth plate 140, and the sixth plate 160 may be the same or different, so as to be suitable for different sound insulation, radiation protection, and other scenes, and improve the performance of sound insulation, radiation protection, water resistance, and other barrier properties.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Moreover, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

Claims

1. A function board is characterized in that the function board comprises a sound-insulation vibration-reduction sealing gasket, and the sound-insulation vibration-reduction sealing gasket comprises a first board part and a second board part which are integrally formed;

the first plate portion and the second plate portion are identical in shape;

the sound-proof vibration-damping sealing gasket can insulate sound.

2. The functional board according to claim 1, wherein the first board portion is made of a functional material including at least one of a damping material, a light absorbing material, a waterproof material, a radiation-proof material, a signal absorbing material, and a signal shielding material.

3. The function board according to claim 1, wherein the first plate portion and the second plate portion are made of the same material.

4. The function board of claim 1, wherein the function board further comprises a first plate;

5. The function board of claim 4, wherein the first board, the first board portion and the second board portion are integrally formed.

6. The function board of claim 4, wherein the function board further comprises a second plate;

7. The performance board of claim 6, wherein the first board, the first board portion, the second board portion and the second board are integrally formed.

8. The functional sheet according to claim 1, further comprising at least a third sheet portion and a fourth sheet portion that are integrally formed;

9. The performance board of claim 1, further comprising at least a third and a fourth board that are not integrally formed;

10. The function board according to claim 1, further comprising a fifth board portion, the first board portion, and the second board portion being integrally molded;

11. The function board according to claim 10, wherein the fifth plate portion, the first plate portion, and the second plate portion are made of the same material.

12. The function board of claim 10, wherein the function board further comprises a first plate;

13. The function board of claim 12, wherein the first board, the fifth board portion, the first board portion, and the second board portion are integrally formed.

14. The function board of claim 12, wherein the function board further comprises a second plate;

15. The function board of claim 14, wherein the second board, the first board, the fifth board portion, the first board portion, and the second board portion are integrally formed.

16. The functional sheet according to claim 10, further comprising at least a sixth sheet portion, a third sheet portion, and a fourth sheet portion that are integrally molded;

17. The function board according to claim 16, wherein the material of the sixth plate portion, the third plate portion, and the fourth plate portion is the same as the material of the first plate portion.

18. The performance board of claim 10, further comprising at least a sixth, third and fourth non-integrally formed board;

19. The function board of claim 1, wherein the second edge of the first board portion is parallel to the second edge of the second board portion, and the second edge of the first board portion is on a different plane than the second edge of the second board portion.

20. The function board of claim 4, wherein the second edge of the first board portion is parallel to the second edge of the second board portion, and the second edge of the first board portion is on a different plane than the second edge of the second board portion.

21. The function board of claim 20, wherein the second edge of the first board portion is perpendicular to the first edge of the first board portion, and the second edge of the second board portion is perpendicular to the first edge of the second board portion.

22. The function board of claim 21, wherein the second edge of the first board portion is in the same plane as and parallel to the second edge of the second board portion, or a section of the second edge of the first board portion meets a section of the second edge of the second board portion.

23. The function board of claim 22, wherein an edge of the first board is flush with an edge of the first board portion.

24. The performance board of claim 1, wherein the first plate portion and the second plate portion are made of different materials.

25. The functional board according to claim 10, wherein the fifth plate portion, the first plate portion, and the second plate portion are formed integrally of different materials.