Splicing type pressure sensing device and splicing type pressure sensing single body thereof

Abstract

A splicing type pressure sensing device comprises a plurality of splicing type pressure sensing single bodies and a flexible connecting assembly. The splicable pressure sensing unit comprises a first flexible circuit board, a flexible spacing layer and a second flexible circuit board. The first flexible circuit board is provided with a plurality of first circuits extending along a first direction. The flexible spacing layer is attached to the first flexible circuit board and is provided with a plurality of through holes and a plurality of gas escape channels, and each gas escape channel is communicated with at least one of the through holes. The second flexible circuit board is attached to the flexible spacing layer and is provided with a plurality of second circuits, and second sensing contacts of the second circuits are aligned with the first sensing contacts of the first circuits through the through holes. The flexible connection assembly is used for connecting the first circuit and the second circuit after the plurality of splicable pressure sensing single bodies are spliced into the splicing type pressure sensing device body.

Description

Technical Field

[0001] The present invention relates to a pressure sensing device, and particularly to a spliced pressure sensing device and a splicable pressure sensing monomer thereof. Background Art

[0002] In recent years, due to the rising self-awareness of the public, more and more people pay more attention to life experiences. As a result, the development of technology is oriented towards providing users with a better experience.

[0003] In daily life, in order to provide users with a more comfortable experience, most devices will provide feedback in cooperation with the sensing of sensors. For example, a thin film pressure sensor will be set on a seat to sense the pressure distribution when a user is sitting, and then analyze the user's sitting posture to make corresponding adjustments.

[0004] As mentioned above, in addition to setting a pressure sensing device on items such as seats to sense the pressure exerted by a user, there are also related applications that use a pressure sensor to detect the actions of a user. For example, a pressure sensor is set on a wearable item to be used in conjunction with technologies such as virtual reality by detecting the actions of the user.

[0005] In addition, the pressure sensing device can also be used in detection applications such as medical mattresses, horizontal tightness detection between rollers, tooth occlusion discrimination, tire flatness detection, or warehouse storage locations, thereby accelerating the ability of medical professionals, warehouse management, and technicians to intuitively judge defective points and shortening the product design change time.

[0006] From the above description, it can be seen that the application fields of the pressure sensing device are extremely wide. Therefore, the most common problem encountered is that the required sensing ranges are of different sizes, resulting in the need to design different-sized pressure sensing devices for different sensing items in practice. This not only fails to quickly and flexibly adjust the sensing range but also requires re-setting and manufacturing, making it very inconvenient to use. Summary of the Invention

[0007] In view of the fact that in the prior art, since the sensing ranges of pressure sensing devices are mostly of fixed sizes, it is often necessary to re-design products for different applications to change the sensing range and it is impossible to adjust the sensing range immediately as needed, which is very inconvenient. Therefore, the main object of the present invention is to provide a spliced pressure sensing device and a splicable pressure sensing monomer thereof, which can adjust the sensing range by splicing a plurality of splicable pressure sensing monomers.

[0008] To solve the problems of the prior art, the necessary technical means adopted by the present invention is to provide a spliced pressure sensing device, which includes a plurality of splicable pressure sensing monomers and a flexible connection component.

[0009] Each spliceable pressure sensing unit respectively includes a first flexible circuit board, a flexible spacer layer, and a second flexible circuit board.

[0010] The first flexible circuit board has a plurality of first circuits extending along a first direction. Each of these first circuits has a first end contact, a second end contact, and a plurality of first sensing contacts connected in series between the first end contact and the second end contact.

[0011] The flexible spacer layer has a first bonding surface and a second bonding surface opposite to each other. The first bonding surface is bonded to the first flexible circuit board, and is provided with a plurality of through holes and a plurality of air escape channels penetrating through the first bonding surface and the second bonding surface. Each of these air escape channels is respectively communicated with at least one of these through holes, and each of these first sensing contacts is respectively aligned with a corresponding one of these through holes.

[0012] The second flexible circuit board is bonded to the second bonding surface, and has a plurality of second circuits extending along a second direction perpendicular to the first direction. Each of these second circuits has a third end contact, a fourth end contact, and a plurality of second sensing contacts connected in series between the third end contact and the fourth end contact, and each of these second sensing contacts is respectively aligned with a corresponding one of these first sensing contacts through one of these through holes.

[0013] The flexible connection component is provided with a plurality of first circuit contacts and a plurality of second circuit contacts for connecting at least two adjacent spliceable pressure sensing units after at least two of these spliceable pressure sensing units are spliced into a spliced pressure sensing device body. These first circuit contacts are electrically connected to these first circuits, and these second circuit contacts are electrically connected to these second circuits.

[0014] Wherein, in the spliced pressure sensing device body, all these first circuits are electrically connected to each other, and all these second circuits are electrically connected to each other.

[0015] In a subsidiary technical means derived from the above necessary technical means, the first flexible circuit board is further provided with a plurality of first air escape holes, and each of these first air escape holes is respectively communicated with at least one of these air escape channels.

[0016] Preferably, the second flexible circuit board is further provided with a plurality of second air escape holes, and each of these second air escape holes is respectively communicated with at least one of these air escape channels.

[0017] In a subsidiary technical means derived from the above necessary technical means, the first flexible circuit board extends from a first side edge along the first direction to a second side edge. The first end contacts and the second end contacts of each of the first circuits are respectively arranged on the first side edge and the second side edge. The first flexible circuit board further has a third side edge and a fourth side edge. The third side edge and the fourth side edge are respectively connected to both ends of the first side edge and the second side edge. A first notch is formed in the third side edge, and a second notch is formed in the fourth side edge. The third end contacts of each of the second circuits are exposed from the first notch, and the fourth end contacts of each of the second circuits are exposed from the second notch.

[0018] Preferably, the second flexible circuit board extends from a fifth side edge along the second direction to a sixth side edge. The third end contacts and the fourth end contacts of each of the second circuits are respectively arranged on the fifth side edge and the sixth side edge. The second flexible circuit board further has a seventh side edge and an eighth side edge. The seventh side edge and the eighth side edge are respectively connected to both ends of the fifth side edge and the sixth side edge. A third notch is formed in the seventh side edge, and a fourth notch is formed in the eighth side edge. The first end contacts of each of the first circuits are exposed from the third notch, and the second end contacts of each of the first circuits are exposed from the fourth notch.

[0019] In a subsidiary technical means derived from the above necessary technical means, the flexible connection component includes at least one first connection band and at least one second connection band. The first connection band extends along the first direction and is provided with the first circuit contacts. The second connection band is connected to the at least one first connection band, extends along the second direction, and is provided with the second circuit contacts.

[0020] Another necessary technical means adopted by the present invention is to provide a spliceable pressure sensing unit as described above.

[0021] As described above, since the spliceable pressure sensing unit of the present invention is composed of a first flexible circuit board, a flexible spacer layer, and a second flexible circuit board, and the first circuits on the first flexible circuit board extend along the first direction, while the second circuits on the second flexible circuit board extend along the second direction perpendicular to the first direction, the spliceable pressure sensing unit can splice the first flexible circuit boards of other spliceable pressure sensing units in the first direction through the first flexible circuit board, so that a plurality of first circuits are connected to each other. Similarly, splicing can also be performed on the second flexible circuit board in the second direction, thereby enabling the spliceable pressure sensing unit to have a very diverse splicing combination expansion performance, effectively allowing the user to adjust the sensing range according to the usage requirements, and then connecting all the first circuits and the second circuits through the flexible connection component respectively, a spliced pressure sensing device with a large sensing range can be formed.

[0022] The specific embodiments adopted by the present invention will be further described through the following embodiments and accompanying drawings. Description of the Drawings

[0023] Figure 1 Showing a three-dimensional exploded view of the splittable pressure sensing monomer of the present invention;

[0024] Figure 2 Showing a three-dimensional view of the splittable pressure sensing monomer of the present invention;

[0025] Figure 3 Showing a partial cross-sectional three-dimensional view of the splittable pressure sensing monomer of the present invention;

[0026] Figure 4 Showing a three-dimensional exploded view of multiple splittable pressure sensing monomers of the present invention spliced together; and

[0027] Figure 5 Showing a three-dimensional exploded view of the spliced pressure sensing device body and the flexible connection component composed of four splittable pressure sensing monomers in the spliced pressure sensing device of the present invention.

[0028] Description of the Reference Numerals in the Drawings

[0029] 1000: Spliced Pressure Sensing Device

[0030] 100: Splittable Pressure Sensing Monomer

[0031] 1: First Flexible Circuit Board

[0032] 11: First Side

[0033] 12: Second Side

[0034] 13: Third Side

[0035] 131: First Notch

[0036] 14: Fourth Side

[0037] 141: Second Notch

[0038] 15: First Circuit

[0039] 151: First Circuit Body

[0040] 1511: First Sensing Contact

[0041] 152: First Extended Circuit

[0042] 1521: First End Contact

[0043] 153: Second Extended Circuit

[0044] 1531: Second end contact

[0045] 16: First vent hole

[0046] 17, 18: First alignment structure

[0047] 2: Soft spacer layer

[0048] 21: Soft spacer layer body

[0049] 211: First bonding surface

[0050] 212: Second bonding surface

[0051] 213: Through hole

[0052] 214: Venting channel

[0053] 22: Spacer

[0054] 3: Second flexible circuit board

[0055] 31: Fifth side

[0056] 32: Sixth side

[0057] 33: Seventh side

[0058] 331: Third notch

[0059] 34: Eighth side

[0060] 341: Fourth notch

[0061] 35: Second circuit

[0062] 351: Second circuit body

[0063] 3511: Second sensing contact

[0064] 352: Third extended circuit

[0065] 3521: Third end contact

[0066] 353: Fourth extended circuit

[0067] 3531: Fourth end contact

[0068] 36: Second vent hole

[0069] 37, 38: Second alignment structure

[0070] 200: Soft connection component

[0071] 201, 202: First connection band

[0072] 2011, 2021: First Circuit Contact

[0073] 203: Second Connection Band

[0074] 2031: Second Circuit Contact

[0075] D1: First Direction

[0076] D2: Second Direction Detailed Implementation Manner

[0077] Please refer to Figures 1 to 3 , Figure 1 to show the three-dimensional exploded schematic diagram of the spliceable pressure sensing monomer of the present invention; Figure 2 to show the three-dimensional schematic diagram of the spliceable pressure sensing monomer of the present invention; Figure 3 to show the partial cross-sectional three-dimensional schematic diagram of the spliceable pressure sensing monomer of the present invention. As Figures 1 to 3 shown, a spliceable pressure sensing monomer 100 includes a first flexible circuit board 1, a flexible spacer layer 2, and a second flexible circuit board 3.

[0078] The first flexible circuit board 1 has a first side 11, a second side 12, a third side 13, a fourth side 14, six first circuits 15 (only one is marked in the figure), nine first escape holes 16 (only one is marked in the figure), and two first alignment structures 17 and 18. Among them, the first flexible circuit board 1 extends from the first side 11 along a first direction D1 to the second side 12, and the third side 13 and the fourth side 14 respectively extend from both ends of the first side 11 along a second direction D2 perpendicular to the first direction D1 to both ends of the second side 12.

[0079] Each first circuit 15 includes a first circuit body 151, a first extended circuit 152, and a second extended circuit 153. The first circuit bodies 151 of each first circuit 15 are independently extended along the first direction D1, and have six first sensing contacts 1511 (only one is marked in the figure) connected in series with each other. The first extended circuit 152 extends integrally from one end of the first circuit body 151 adjacent to the first side 11 to the first side 11 to form a first end contact 1521. The second extended circuit 153 extends integrally from one end of the first circuit body 151 adjacent to the second side 12 to the second side 12 to form a second end contact 1531. Among them, a first notch 131 is further provided on the third side 13, and a second notch 141 is further provided on the fourth side 14. In addition, since there are six first circuits 15 in this embodiment, and each first circuit 15 has six first sensing contacts 1511, the entire first flexible circuit board 1 has a total of thirty-six first sensing contacts 1511.

[0080] Nine first air escape holes 16 are evenly distributed among the thirty-six first sensing contacts 1511, so that each first sensing contact 1511 can be adjacent to a first air escape hole 16.

[0081] The first alignment structure 17 is disposed at the junction of the second side 12 and the third side 13, and the first alignment structure 18 is disposed at the junction of the second side 12 and the fourth side 14.

[0082] The flexible spacer layer 2 includes a flexible spacer layer body 21 and a plurality of spacers 22 (only one is labeled in the figure). The flexible spacer layer body 21 has a first bonding surface 211 and a second bonding surface 212 opposite to each other. The first bonding surface 211 is used to bond to the first flexible circuit board 1, and the flexible spacer layer 2 is further provided with a plurality of through holes 213 (thirty-six in this embodiment) and a plurality of air escape channels 214 (thirty-six in this embodiment) that penetrate through the first bonding surface 211 and the second bonding surface 212; wherein, each first sensing contact 1511 is respectively aligned with a corresponding one of the plurality of through holes 213, that is, the thirty-six first sensing contacts 1511 in this embodiment respectively correspond to the thirty-six through holes 213.

[0083] In addition, the air escape channels 214 are respectively connected to a through hole 213, and in this embodiment, every four air escape channels 214 are further connected to each other to form an X-shaped structure, so that each through hole 213 is connected to the other three through holes 213 through four air escape channels 214. When the flexible spacer layer 2 is bonded to the first flexible circuit board 1 with the first bonding surface 211, each first air escape hole 16 further respectively corresponds to the intersection of the above-mentioned every four mutually connected air escape channels 214, so that each air escape channel 214 can be connected to a first air escape hole 16.

[0084] The plurality of spacers 22 are respectively disposed on the first sensing contacts 1511 at intervals in each through hole 213. In this embodiment, the spacer 22 is, for example, a spherical particle structure.

[0085] The second flexible circuit board 3 is bonded to the second bonding surface 212 and has a fifth side 31, a sixth side 32, a seventh side 33, an eighth side 34, six second circuits 35 (only one is labeled in the figure), nine second air escape holes 36 (only one is labeled in the figure), and two second alignment structures 37 and 38. Among them, the second flexible circuit board 3 extends from the fifth side 31 along the second direction D2 to the sixth side 32 (since in Figure 1In it, the second flexible circuit board 3 is in a state of being horizontally turned over relative to the first flexible circuit board 1 and the flexible spacer layer 2. Therefore, the extending direction presented by the first direction D1 based on the description of the first flexible circuit board 1 will be opposite to the extending direction described by the second flexible circuit board 3. The seventh side 33 and the eighth side 34 respectively extend from both ends of the fifth side 31 along the first direction D1 to both ends of the sixth side 32.

[0086] Each second circuit 35 includes a second circuit body 351, a third extending circuit 352, and a fourth extending circuit 353. The second circuit bodies 351 of each second circuit 35 independently extend along the second direction D2 respectively and have six second sensing contacts 3511 (only one is marked in the figure) connected in series with each other. The third extending circuit 352 integrally extends from one end of the second circuit body 351 adjacent to the fifth side 31 to the fifth side 31 to form a third end contact 3521. The fourth extending circuit 353 integrally extends from one end of the second circuit body 351 adjacent to the sixth side 32 to the sixth side 32 to form a fourth end contact 3531. Among them, a third notch 331 is further formed in the seventh side 33, and a fourth notch 341 is further formed in the eighth side 34. In addition, since there are six second circuits 35 in this embodiment and each second circuit 35 has six second sensing contacts 3511, the entire second flexible circuit board 3 has a total of thirty-six second sensing contacts 3511.

[0087] As described above, when the flexible spacer layer 2 is attached to the first flexible circuit board 1 and the second flexible circuit board 3 is attached to the flexible spacer layer 2, each second sensing contact 3511 will respectively align with a corresponding one of the first sensing contacts 1511 through a corresponding one of the through holes 213. In addition, the first end contact 1521 of each first circuit 15 will be exposed from the third notch 331, the second end contact 1531 of each first circuit 15 will be exposed from the fourth notch 341, the third end contact 3521 of each second circuit 35 will be exposed from the first notch 131, and the fourth end contact 3531 of each second circuit 35 will be exposed from the second notch 141.

[0088] Nine second escape holes 36 are evenly distributed among the thirty-six second sensing contacts 3511, so that each second sensing contact 3511 can be adjacent to a second escape hole 36.

[0089] The second alignment structure 37 is disposed at the junction of the eighth side 34 and the fifth side 31, and the second alignment structure 38 is disposed at the junction of the eighth side 34 and the sixth side 32. Thus, when the first flexible circuit board 1 and the second flexible circuit board 3 are respectively attached to the first surface 211 and the second surface 212 of the flexible spacer layer 2, the first alignment structures 17 and 18 can respectively align with the second alignment structures 37 and 38, so that the first circuit 15 and the second circuit 35 are arranged in a perpendicular and staggered manner, thereby forming a grid-like pressure sensing circuit structure.

[0090] In addition, when the second flexible circuit board 3 is attached to the second attachment surface 212 of the flexible spacer layer 2, each second air escape hole 36 respectively corresponds to the intersection of every four mutually communicating air escape channels 214 described above. Thus, each air escape channel 214 can communicate with a second air escape hole 36, and each second air escape hole 36 can also communicate with the corresponding first air escape hole 16 through the corresponding air escape channel 214.

[0091] It should be particularly noted that, in this embodiment, the substrate bodies of the first flexible circuit board 1 and the second flexible circuit board 3 and the flexible spacer body 21 are practically composed of an insulator such as thermoplastic polyurethane (TPU), and the first circuit 15 and the second circuit 35 are formed by printing with a conductive material, and the spacer 22 can practically be an insulating material such as double-sided tape pasted and fixed between the first sensing contact 1511 and the second sensing contact 3511.

[0092] Please continue to refer to Figure 4 and Figure 5 , Figure 4 which shows a three-dimensional exploded view of a plurality of spliceable pressure sensing monomers of the present invention spliced together. Figure 5 shows a three-dimensional exploded view of a spliced pressure sensing device body and a flexible connection component composed of four spliceable pressure sensing monomers in the spliced pressure sensing device of the present invention. As Figures 1 to 5 shown, this embodiment also provides a spliced pressure sensing device 1000, which includes four spliceable pressure sensing monomers 100, 100a, 100b and 100c and a flexible connection component 200.

[0093] As described above, since the structures of the spliceable pressure sensing monomers 100a, 100b and 100c are the same as the structure of the above-mentioned spliceable pressure sensing monomer 100, the structures of the spliceable pressure sensing monomers 100a, 100b and 100c will not be described in detail here.

[0094] It should be specifically noted that among the four spliceable pressure sensing units 100, 100a, 100b, and 100c, splicing in the first direction D1 is mainly achieved through the first end contacts and the second end contacts, and splicing in the second direction D2 is achieved through the third end contacts and the fourth end contacts. In practice, electrical connection can be carried out by means of fusion fixing, but it is not limited to this, and conductive adhesive can also be used for electrical connection, thereby enabling the first circuits and the second circuits of the four spliceable pressure sensing units 100, 100a, 100b, and 100c to be connected in series with each other respectively.

[0095] The flexible connection assembly 200 includes two first connection bands 201 and 202, a second connection band 203, and a current collecting portion 204. The first connection bands 201 and 202 extend along the first direction D1 respectively. The first connection band 201 is provided with six first circuit contacts 2011 (only one is marked in the figure), and the first connection band 202 is also provided with six first circuit contacts 2021 (only one is marked in the figure). The two ends of the second connection band 203 are integrally connected to one end of the two first connection bands 201 and 202 respectively. The second connection band 203 extends along the second direction D2 and is provided with twelve second circuit contacts 2031 (only one is marked in the figure). The current collecting portion 204 is connected to the second connection band 203, and the circuits of the above-mentioned first circuit contacts 2011 and 2021 and the second circuit contacts 2031 all extend to the current collecting portion 204, thereby enabling the user to connect to other electronic devices such as a computer or an analytical instrument.

[0096] After the four spliceable pressure sensing units 100, 100a, 100b, and 100c are spliced into a spliced pressure sensing device body (not shown in the figure), the flexible connection assembly 200 is used to connect adjacent spliceable pressure sensing units 100, 100a, 100b, and 100c. In this embodiment, the six first circuit contacts 2011 of the first connection band 201 are used to electrically connect to the six fourth end contacts (not shown in the figure) of the spliceable pressure sensing unit 100c, the six first circuit contacts 2021 of the first connection band 202 are used to electrically connect to the six third end contacts (not shown in the figure) of the spliceable pressure sensing unit 100a, and the twelve second circuit contacts 2031 of the second connection band 203 are used to electrically connect to the six first end contacts (not shown in the figure) of the spliceable pressure sensing unit 100c and the six first end contacts (not shown in the figure) of the spliceable pressure sensing unit 100b.

[0097] As described above, since the second circuits (not shown in the figures) of the splicable pressure sensing unit 100c and the splicable pressure sensing unit 100b are connected to each other in the second direction D2, when the first circuit contact 2011 is electrically connected to the first circuit of the splicable pressure sensing unit 100c through six fourth end contacts (not shown in the figures) of the splicable pressure sensing unit 100c, it is also equivalent to being electrically connected to the second circuit of the splicable pressure sensing unit 100b; similarly, by electrically connecting to six third end contacts (not shown in the figures) of the splicable pressure sensing unit 100a through the first circuit contact 2021, it is also equivalent to being electrically connected to the second circuit of the splicable pressure sensing unit 100( Figure 5 not shown), and when the first circuits (not shown in the figures) of the four splicable pressure sensing units 100, 100a, 100b, and 100c extending along the first direction D1 are also electrically connected through twelve second circuit contacts 2031 respectively. Thus, the four splicable pressure sensing units 100, 100a, 100b, and 100c can form a grid-shaped pressure sensing circuit structure with a larger sensing area compared to a single splicable pressure sensing unit 100 through twelve sets of first circuits and twelve sets of second circuits.

[0098] In addition, although in this embodiment, the flexible connection component 200 includes two first connection bands 201 and 202 and a second connection band 203, in other embodiments, there may also be only one first connection band 202 and one second connection band 203, that is, six first circuit contacts 2011 are disposed on the first connection band 202, so that the entire flexible connection component 200 forms an L-shaped structure. At this time, the bus bar portion 204 can be disposed at the connection of the first connection band 202 and the second connection band 203.

[0099] In summary, since the splicable pressure sensing device and the splicable pressure sensing unit of the present invention mainly splice the first circuit in the first direction through the first flexible circuit board and splice the second circuit in the second direction through the second flexible circuit board, the splicable pressure sensing unit has a very diverse expansion performance of splicing combinations, allowing users to adjust the sensing range according to different sensing range requirements, and then connecting all the first circuits and second circuits through the flexible connection component respectively, a splicable pressure sensing device with a large sensing range can be formed, which is very convenient and has a flexible space for assembly. Compared with the prior art pressure sensing device with only a fixed size and having to be redesigned and manufactured according to different requirements, the splicable pressure sensing device and the splicable pressure sensing unit of the present invention are indeed more convenient and have a flexible space for assembly.

[0100] In addition, since the splicable pressure sensing unit is made of a flexible material, it can be curled up for storage to facilitate carrying, and can be applied to various application sites.

[0101] Through the detailed description of the above preferred specific embodiments, it is hoped that the features and spirit of the present invention can be more clearly described, rather than limiting the scope of the present invention by the above-disclosed preferred specific embodiments. On the contrary, the purpose is to hope to cover various changes and equivalent arrangements within the scope of the claims to be applied for by the present invention.

Claims

1. A spliced pressure sensing device, comprising: A plurality of splicable pressure sensing monomers, each of the plurality of splicable pressure sensing monomers comprising: A first flexible circuit board having a plurality of first circuits extending in a first direction, each of the plurality of first circuits having a first end contact, a second end contact, and a plurality of first sensing contacts connected in series between the first end contact and the second end contact; A flexible spacer layer has a first bonding surface and a second bonding surface opposite to each other. The first bonding surface is bonded to the first flexible circuit board and is provided with a plurality of through holes and a plurality of air escape channels that penetrate the first bonding surface and the second bonding surface. Each of the plurality of air escape channels is respectively connected to at least one of the plurality of through holes, and each of the plurality of first sensing contacts is respectively aligned with a corresponding one of the plurality of through holes; And A second flexible circuit board attached to the second attachment surface and having a plurality of second circuits extending in a second direction perpendicular to the first direction, each of the plurality of second circuits having a third end contact, a fourth end contact, and a plurality of second sensing contacts connected in series between the third end contact and the fourth end contact, and each of the plurality of second sensing contacts being aligned with a corresponding one of the plurality of first sensing contacts through one of the plurality of through holes; And A flexible connection component provided with a plurality of first circuit contacts and a plurality of second circuit contacts for connecting at least two adjacent splicable pressure sensing monomers after at least two of the plurality of splicable pressure sensing monomers are spliced into a spliced pressure sensing device body, the plurality of first circuit contacts being electrically connected to the plurality of first circuits, and the plurality of second circuit contacts being electrically connected to the plurality of second circuits; Wherein, in the spliced pressure sensing device body, all of the plurality of first circuits are electrically connected to each other, and all of the plurality of second circuits are electrically connected to each other.

2. The spliced pressure sensing device according to claim 1, wherein, The first flexible circuit board further has a plurality of first air escape holes, each of the plurality of first air escape holes communicating with at least one of the plurality of air escape channels.

3. The spliced pressure sensing device according to claim 2, wherein The second flexible circuit board further has a plurality of second air escape holes, each of the plurality of second air escape holes communicating with at least one of the plurality of air escape channels.

4. The spliced pressure sensing device according to claim 1, wherein, The first flexible circuit board extends from a first side edge in the first direction to a second side edge, the first end contact and the second end contact of each of the plurality of first circuits are respectively provided on the first side edge and the second side edge, and the first flexible circuit board further has a third side edge and a fourth side edge, the third side edge and the fourth side edge are respectively connected to both ends of the first side edge and the second side edge, the third side edge further has a first notch, the fourth side edge further has a second notch, the third end contact of each of the plurality of second circuits is exposed from the first notch, and the fourth end contact of each of the plurality of second circuits is exposed from the second notch.

5. The spliced pressure sensing device according to claim 4, wherein, The second flexible circuit board extends from the fifth side edge in the second direction to the sixth side edge. The third end contacts and the fourth end contacts of each of the plurality of second circuits are respectively disposed on the fifth side edge and the sixth side edge. The second flexible circuit board further has a seventh side edge and an eighth side edge. The seventh side edge and the eighth side edge are respectively connected to two ends of the fifth side edge and the sixth side edge. A third notch is formed on the seventh side edge, and a fourth notch is formed on the eighth side edge. The first end contacts of each of the plurality of first circuits are exposed from the third notch, and the second end contacts of each of the plurality of first circuits are exposed from the fourth notch.

6. The spliced pressure sensing device according to claim 1, wherein, The flexible connection assembly includes: At least one first connection band extending in the first direction and provided with the plurality of first circuit contacts; and At least one second connection band connected to the at least one first connection band, extending in the second direction, and provided with the plurality of second circuit contacts.

7. A spliceable pressure sensing unit, comprising: A first flexible circuit board having a plurality of first circuits extending in a first direction. Each of the plurality of first circuits has a first end contact, a second end contact, and a plurality of first sensing contacts connected in series between the first end contact and the second end contact; A flexible spacer layer having a first bonding surface and a second bonding surface opposite to each other. The first bonding surface is bonded to the first flexible circuit board and is provided with a plurality of through holes and a plurality of air escape channels penetrating through the first bonding surface and the second bonding surface. Each of the plurality of air escape channels is respectively communicated with at least one of the plurality of through holes, and each of the plurality of first sensing contacts is respectively aligned with a corresponding one of the plurality of through holes; and A second flexible circuit board bonded to the second bonding surface and having a plurality of second circuits extending in a second direction perpendicular to the first direction. Each of the plurality of second circuits has a third end contact, a fourth end contact, and a plurality of second sensing contacts connected in series between the third end contact and the fourth end contact. Each of the plurality of second sensing contacts is respectively aligned with a corresponding one of the plurality of first sensing contacts through one of the plurality of through holes.

8. The spliceable pressure sensing monomer according to claim 7, wherein, The first flexible circuit board is further provided with a plurality of first air escape holes, and each of the plurality of first air escape holes is respectively communicated with at least one of the plurality of air escape channels.

9. The spliceable pressure sensing unit according to claim 8, wherein, The second flexible circuit board is further provided with a plurality of second air escape holes, and each of the plurality of second air escape holes is respectively communicated with at least one of the plurality of air escape channels.

10. The spliceable pressure sensing unit according to claim 7, wherein, The first flexible circuit board extends from the first side edge along the first direction to the second side edge. The first end contacts and the second end contacts of each of the plurality of first circuits are respectively disposed on the first side edge and the second side edge. The first flexible circuit board further has a third side edge and a fourth side edge. The third side edge and the fourth side edge are respectively connected to two ends of the first side edge and the second side edge. A first notch is further formed in the third side edge, and a second notch is further formed in the fourth side edge. The third end contacts of each of the plurality of second circuits are exposed from the first notch, and the fourth end contacts of each of the plurality of second circuits are exposed from the second notch.

11. The spliceable pressure sensing monomer according to claim 10, wherein, The second flexible circuit board extends from the fifth side edge along the second direction to the sixth side edge. The third end contacts and the fourth end contacts of each of the plurality of second circuits are respectively disposed on the fifth side edge and the sixth side edge. The second flexible circuit board further has a seventh side edge and an eighth side edge. The seventh side edge and the eighth side edge are respectively connected to two ends of the fifth side edge and the sixth side edge. A third notch is further formed in the seventh side edge, and a fourth notch is further formed in the eighth side edge. The first end contacts of each of the plurality of first circuits are exposed from the third notch, and the second end contacts of each of the plurality of first circuits are exposed from the fourth notch.

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