Thin film electric device with puncturing structure and power supply system

Abstract

The utility model discloses a thin-film electric device with a puncture structure and a power supply system, and relates to the technical field of thin-film batteries, the thin-film electric device with the puncture structure comprises a plurality of conductive units and binding structures, each conductive unit comprises a substrate and a tab, the tab is arranged on one side of the substrate, and the plurality of conductive units are stacked; the binding structure comprises at least one binding piece, and the binding piece penetrates through the substrate and the tabs, so that the plurality of conductive units are connected in series or in parallel; a folded puncture part is arranged at the end part of at least one binding piece, and an included angle formed by the puncture part and the binding piece is an acute angle; wherein the puncturing part at least penetrates out of one base. According to the technical scheme of the utility model, the plurality of substrates and the plurality of tabs are arranged in the penetrating manner through the binding pieces, so that the plurality of conductive units are connected in parallel or in series; and the folded puncture part is arranged at the end part of at least one binding piece, and the puncture part at least penetrates out of one substrate, so that the contact area between the binding piece and the corresponding tab is increased, and the resistance of the whole thin-film electric device is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to thin film battery technical field, especially a kind of thin film electrical device and power supply system containing puncture structure. BACKGROUND

[0002] Thin film battery has natural limitation in capacity and voltage of single battery due to its unique properties of light weight and ultra-thin. In order to meet the demand in practical application, we usually adopt combination structure of series and parallel to enhance the performance of the whole system.

[0003] In the related art, the lug of thin film battery is connected by rivet. However, when the lugs of thin film battery are stacked, the contact area between the lugs of single-sided conductive lugs can only rely on rivet for conduction, and the contact area between the rivet foot and the lug is small, resulting in large resistance. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a kind of thin film electrical device and power supply system containing puncture structure, to increase the contact area between the lugs of stacked placement, reduce the resistance of thin film electrical device containing puncture structure.

[0005] To achieve the above purpose, the thin film electrical device containing puncture structure provided by the utility model comprises:

[0006] A plurality of conductive units, the conductive unit includes substrate and lug, the lug is arranged on one side of the substrate, and the plurality of conductive units are arranged in layers.

[0007] Binding structure, including at least one binding piece, the binding piece is arranged through the substrate and the lug, so that the plurality of conductive units are connected in series or parallel;The end of at least one binding piece is provided with a folded puncture part, and the included angle formed by the puncture part and the binding piece is acute angle;Wherein, the puncture part at least penetrates one of the substrate.

[0008] In an embodiment, the binding structure further comprises a connecting piece, and the adjacent two binding pieces are connected by the connecting piece.

[0009] In an embodiment, the binding piece has a plurality of, and the binding piece is rod-shaped.

[0010] In an embodiment, the binding piece is cylindrical, and the puncture part is arranged at the upper end and / or lower end of the binding piece.

[0011] In an embodiment, the plurality of conductive units comprises a first conductive unit and a second conductive unit arranged below the first conductive unit, the first conductive unit comprises a first substrate and a first tab, the second conductive unit comprises a second substrate and a second tab, the first tab and the first substrate have the same distribution direction, and the second tab and the second substrate have the same distribution direction.

[0012] In an embodiment, the first tab, the first substrate, the second tab and the second substrate are arranged in sequence, and the first tab and the second tab are arranged correspondingly, the plurality of conductive units further comprises a third conductive unit arranged between the first conductive unit and the second conductive unit, the third conductive unit comprises a third substrate and a third tab, the third tab is arranged between the third substrate and the second tab and abuts against the second tab, and the piercing portion penetrates the second substrate and the second tab.

[0013] In an embodiment, the first substrate, the first tab, the second substrate and the second tab are arranged in sequence, and the first tab and the second tab are arranged correspondingly, the plurality of conductive units further comprises a third conductive unit arranged above the first conductive unit, the third conductive unit comprises a third substrate and a third tab, the third tab is arranged above the third substrate, and the piercing portion penetrates the second tab and the second substrate and connects the first tab.

[0014] In an embodiment, the first substrate, the first tab, the second substrate and the second tab are arranged in sequence, and the first tab and the second tab are arranged correspondingly, the plurality of conductive units further comprises a third conductive unit arranged below the second conductive unit, the third conductive unit comprises a third substrate and a third tab, the third tab is arranged above the third substrate;

[0015] The two opposite ends of the binding member are provided with the piercing portions, one of the piercing portions penetrates the first substrate and the first tab, and the other of the piercing portions penetrates the third substrate and the third tab.

[0016] In an embodiment, the plurality of conductive units comprises a first conductive unit and a second conductive unit arranged below the first conductive unit, the first conductive unit comprises a first substrate and a first tab, the second conductive unit comprises a second substrate and a second tab, the first tab, the first substrate, the second tab and the second substrate are arranged in sequence, and the first tab and the second tab are arranged staggeredly;

[0017] The binding piece comprises a first binding part and a second binding part, the first binding part is arranged through the first tab, the first base and the second base, the second binding part is arranged through the first base, the second tab and the second base, the upper ends of the first binding part and the second binding part are connected through the connecting piece, the lower end of the first binding part is provided with a fixed part, the fixed part abuts against the lower surface of the second base, and the lower end of the second binding part is provided with the puncture part arranged through the second tab and the second base.

[0018] In an embodiment, the plurality of conductive units comprises a first conductive unit and a second conductive unit arranged below the first conductive unit, the first conductive unit comprises a first base and a first tab, the second conductive unit comprises a second base and a second tab, the first base, the first tab, the second base and the second tab are arranged in sequence, and the first tab and the second tab are arranged oppositely.

[0019] The binding piece comprises a first binding part and a second binding part, the first binding part is arranged through the first base and the first tab, the second binding part is arranged through the first base, the first tab, the second base and the second tab, the upper ends of the first binding part and the second binding part are connected through the connecting piece, the lower end of the first binding part is provided with a fixed part, the fixed part abuts against the lower surface of the first tab, and the lower end of the second binding part is provided with the puncture part arranged through the second tab and the second base.

[0020] The utility model discloses still provide a power supply system, including preceding containing puncture structure's thin film electric device, through the binding structure binding connection's plurality of the conductive unit is thin film battery unit, or through the binding structure binding connection's plurality of the conductive unit, at least one the conductive unit is thin film battery unit, and at least one the conductive unit is the thin film electric connection terminal of consumer.

[0021] The utility model discloses a technical scheme through the binding piece arranged through the base and the tab of the plurality of the conductive unit arranged in sequence, so that the tab between each conductive unit can be electrically connected through the binding piece, to realize the parallel connection or series connection between the plurality of the conductive unit, and through the setting of the puncture part of the end of at least one binding piece, the puncture part at least passes out one base, and contacts with the tab on the corresponding base, thereby increasing the contact area of the binding piece and the corresponding tab, reducing the resistance between the binding piece and the corresponding tab, and further reducing the resistance of the whole thin film electric device containing the puncture structure. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can also be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0023] Figure 1 A structure schematic view of a first embodiment of the thin film electric device with a puncture structure provided by the present application is shown in the figure.

[0024] Figure 2 A structure schematic view of a second embodiment of the thin film electric device with a puncture structure provided by the present application is shown in the figure.

[0025] Figure 3 A structure schematic view of a third embodiment of the thin film electric device with a puncture structure provided by the present application is shown in the figure.

[0026] Figure 4 A structure schematic view of a fourth embodiment of the thin film electric device with a puncture structure provided by the present application is shown in the figure.

[0027] Figure 5 A structure schematic view of a fifth embodiment of the thin film electric device with a puncture structure provided by the present application is shown in the figure.

[0028] Figure 6 A structure schematic view of a sixth embodiment of the thin film electric device with a puncture structure provided by the present application is shown in the figure.

[0029] Figure 7 A structure schematic view of a seventh embodiment of the thin film electric device with a puncture structure provided by the present application is shown in the figure.

[0030] Figure 8 A structure schematic view of a first embodiment of the binding structure provided by the present application is shown in the figure.

[0031] Figure 9 A structure schematic view of a second embodiment of the binding structure provided by the present application is shown in the figure.

[0032] Figure 10 A structure schematic view of a third embodiment of the binding structure provided by the present application is shown in the figure.

[0033] Figure 11 A top view of multiple embodiments of the binding structure provided by the present application is shown in the figure.

[0034] Explanation of figure mark:

[0035] 10, thin film electric device; 100, first conductive unit; 200, second conductive unit; 300, third conductive unit; 400, binding structure; 110, first substrate; 120, first tab; 210, second substrate; 220, second tab; 310, third substrate; 320, third tab; 410, binding piece; 411, first binding part; 412, second binding part; 420, puncture part; 430, connecting piece; 440, fixing part.

[0036] The implementation, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0038] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0039] In addition, if the embodiments of the utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one feature. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B simultaneously meet the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0040] The utility model provides a kind of thin film electric device 10 containing puncture structure.

[0041] Please refer to Figure 1 And Figure 8In an embodiment of the present application, the thin film electrical device 10 with a piercing structure includes a plurality of conductive units and a binding structure 400. The conductive unit includes a substrate and a tab, the tab is arranged on one side of the substrate, and the plurality of conductive units are arranged in a stack. The binding structure 400 includes at least one binding piece 410, the binding piece 410 is arranged through the substrate and the tab to connect the plurality of conductive units in series or in parallel. The end of the at least one binding piece 410 is provided with a folded piercing part 420, and the included angle between the piercing part 420 and the binding piece 410 is an acute angle. The piercing part 420 at least penetrates one substrate.

[0042] The substrate provides mechanical support for the conductive unit. The substrate can be made of glass, plastic or metal foil. The main function of the tab is to collect current from the inside of the conductive unit and lead it out to the external circuit. The tab is usually arranged near the edge of the substrate. When the substrate itself or its surface has a layer of conductive material (such as aluminum), it can be directly used as a tab and form a conductive path with the conductive layer. At this time, the substrate not only provides mechanical support, but also participates in the electronic transmission process. When the substrate is non-conductive (such as glass or polymer), a layer or more of conductive material (such as a printed carbon layer) is deposited on the substrate as a tab to achieve the function of the tab leading out the current.

[0043] Each conductive unit includes a substrate and a tab, wherein the tab is located on one side of the substrate and arranged near the edge of the substrate. A plurality of conductive units are stacked together and bound together by the binding structure 400 to form an integral whole.

[0044] The binding structure 400 includes a binding piece 410, which penetrates the substrate and the tab to achieve physical fixation and electrical connection (series or parallel) between the conductive units. Each binding piece 410 can penetrate the substrate and the tab of each conductive unit; or one binding piece 410 can penetrate the substrate and the tab of part of the conductive units, and another binding piece 410 can penetrate the substrate and the tab of another part of the conductive units, and the two binding pieces 410 are connected to each other. As long as the tab of each conductive unit can be electrically connected through one or binding pieces 410, the specific penetration form of the binding piece 410 is not limited.

[0045] The binding piece 410 not only plays a role in physical fixation, making the connection between the conductive units more secure and reducing the risk of damage caused by external vibration or impact, but also effectively connects the conductive units in series or in parallel, simplifying the internal circuit connection of the thin film electrical device 10 with a piercing structure and improving electrical efficiency. According to actual needs, the series or parallel connection of the conductive units can be flexibly realized by adjusting the configuration of the binding piece 410, meeting the voltage and capacity requirements in different application scenarios.

[0046] At least one of the binding members 410 is provided with a piercing portion 420 formed by folding at an end thereof, and the piercing portion 420 forms an acute angle with the binding member 410, so that the piercing portion 420 penetrates at least through the substrate of at least one of the conductive units, thereby ensuring a more stable connection between the conductive units and providing an additional contact point for electrical connection.

[0047] It can be understood that the substrate of the outermost conductive unit in the stacking direction of the conductive units is taken as an example. The thickness of the substrate is very thin, and when the piercing portion 420 penetrates through the substrate, the piercing portion 420 will inevitably contact the tab on the conductive unit. At this time, the piercing portion 420 can be in abutment with the tab, can be embedded in the tab, or can penetrate through the tab. The piercing portion 420 increases the contact area between the binding member 410 and the tab, thereby reducing the contact resistance between the binding member 410 and the tab, reducing the electrical resistance between the binding structure 400 and the conductive unit, and further reducing the electrical resistance of the thin film electronic device 10 with the piercing structure.

[0048] Of course, when the piercing portion 420 penetrates through multiple substrates, the piercing portion 420 contacts the tabs on the corresponding substrates, thereby increasing the contact area between the binding member 410 and the corresponding tabs and further reducing the electrical resistance of the thin film electronic device 10 with the piercing structure.

[0049] The piercing portion 420 not only reduces the electrical resistance of the thin film electronic device 10 with the piercing structure, but also ensures a tighter connection between the conductive units, reduces the risk of overheating or short circuit caused by poor contact, and improves the safety performance of the entire thin film electronic device 10 with the piercing structure. Moreover, the piercing portion 420 is embedded in the conductive unit, thereby improving the mechanical properties and stability of the entire thin film electronic device 10 with the piercing structure.

[0050] The binding member 410 and the piercing portion 420 are integrally formed and are made of a metal material that is easy to bend, such as steel, copper, tin, and the like, and can conduct electricity. The mechanical connection and electrical connection of the binding structure 400 to the multiple conductive units can be achieved by using a pressing process, realizing parallel or series connection between the multiple conductive units, making the assembly process of the thin film electronic device 10 with the piercing structure simpler and faster, reducing the dependence on traditional connection technologies such as welding and electrical glue bonding, avoiding the damage to the thin film material caused by the high-temperature heat effect of welding, and avoiding the risk of gradual decline in electrical conductivity caused by aging of electrical glue bonding.

[0051] The technical scheme of the utility model discloses through the plurality of the base and the tab of the conductive unit of the overlapping arrangement of the binding piece 410, the tab between each conductive unit can be connected through the binding piece 410 electricity, to realize the parallel connection or series connection between multiple conductive units, and through the setting of the puncture part 420 of the folding of the end of at least one binding piece 410, the puncture part 420 at least passes one base, and the tab on the corresponding base is contacted, thereby increasing the contact area of the binding piece 410 and the corresponding tab, reducing the resistance between the binding piece 410 and the corresponding tab, and further reducing the resistance of the whole film electrical device 10 containing the puncture structure. Meanwhile, the setting of the binding piece 410 and the puncture part 420 also improves the mechanical properties and stability of the whole film electrical device 10 containing the puncture structure.

[0052] In an embodiment, referring to Figures 8 to 10 The binding structure 400 also includes a connecting piece 430, and the adjacent two binding pieces 410 are connected through the connecting piece 430.

[0053] The adjacent two binding pieces 410 are connected through the connecting piece 430. The connecting piece 430 connects the binding pieces 410 into an integral frame, and the connecting piece 430 makes each binding piece 410 no longer work independently, but forms a mutually supporting frame structure, greatly increasing the rigidity and anti-distortion ability of the whole binding structure 400, and improving the mechanical properties, binding stability and reliability of the whole binding structure 400. Moreover, such a frame structure can provide a more uniform current distribution path, reduce the risk of local overheating, and improve the stability and reliability of the whole circuit. In addition, the binding pieces 410 are connected to each other through the connecting piece 430 to form a unified module, which can simplify the assembly process between the conductive unit and the binding structure 400 and improve production efficiency.

[0054] In an embodiment, the binding piece 410 has a plurality of, and the binding piece 410 is rod-shaped.

[0055] The binding piece 410 can specifically be needle-shaped with a puncture tip and a small diameter, or can be strip-shaped with an equal cross-section continuous extension structure and a large diameter. Referring to Figure 9 The plurality of rod-shaped binding pieces 410 can be connected together through the connecting piece 430 to form an integral structure. In another embodiment, the plurality of rod-shaped binding pieces 410 can also not be connected through the connecting piece 430, but the plurality of rod-shaped binding pieces 410 are arranged closely along the circumferential direction.

[0056] In still another embodiment, the binding piece 410 is cylindrical, and the puncture part 420 is arranged on the upper end and / or the lower end of the binding piece 410.

[0057] The binding member 410 is cylindrical and has a hollow structure to provide certain strength and stability. The piercing portion 420 is trumpet-shaped in the axial direction of the binding member 410, and is arranged at the upper end and / or the lower end of the binding member 410. The piercing portion 420 has a large area, which helps to increase the contact area between the piercing portion 420 and the corresponding conductive unit, thereby reducing the resistance and improving the stability of the fixation, and reducing the risk of loosening due to vibration or other external forces. It is worth mentioning that in the present scheme, the cylindrical binding member 410 is not provided with a connecting member 430, so that the binding structure 10 is more flexible and convenient to bind.

[0058] In an embodiment, referring to Figure 9 , the connecting member 430 is plate-shaped, and the binding members 410 are distributed along the edges of the connecting member 430. The connecting member 430 is connected to one end of the binding members 410, and the piercing portions 420 are arranged at the other end of the binding members 410 opposite the connecting member 430.

[0059] The connecting member 430 is plate-shaped, and the connecting member 430 provides a planar support structure, providing additional rigidity and stability, making the entire binding structure 400 more robust and able to effectively resist external impact and vibration. The binding members 410 are distributed along the edges of the connecting member 430, which helps to evenly distribute the force and reduce the risk of damage due to local stress concentration, and can ensure that the connection between the conductive units is more stable and flat. The plate-shaped connecting member 430 integrates the binding members 410 together to form a modular assembly that is easy to operate, simplifying the assembly process between the conductive units and the binding structure 400 and improving production efficiency. One end of each binding member 410 is fixed to the plate-shaped connecting member 430, and the other end is provided with a piercing portion 420 formed by folding. This design ensures that the binding member 410 not only serves as a fixing and electrical connection, but also better penetrates the base material through the piercing portion 420, increasing the firmness of the connection.

[0060] In another embodiment, referring to Figure 10 , the connecting member 430 is ring-shaped, and the binding members 410 are distributed along the edges of the connecting member 430. The connecting member 430 is connected to one end of the binding members 410, and the piercing portions 420 are arranged at the opposite ends of the binding members 410.

[0061] The connecting member 430 is annular, forming a closed frame structure, so that the entire binding structure 400 is more stable, which is conducive to improving the mechanical stability of the entire binding structure 400. The binding members 410 are distributed along the edges of the connecting member 430, which helps to evenly distribute the force and reduce the risk of damage caused by local stress concentration, and can ensure that the connection between the conductive units is more stable and smooth. The annular connecting member 430 integrates the binding members 410 together to form a modular assembly that is easy to operate, simplifying the assembly process between the conductive units and the binding structure 400 and improving production efficiency. The binding members 410 are provided with piercing portions 420 at both ends, and each binding member 410 can not only penetrate the substrate from one side for fixation and electrical connection, but also further penetrate other substrates from the other side, greatly enhancing the connection strength and stability between the conductive units, thereby forming a double-sided fixation mechanism. At the same time, through the piercing of both ends, more contact points for electrical connection can be created, which not only further reduces the resistance of the thin film electrical device 10 with the piercing structure, but also helps to improve the current conduction efficiency and reduce the heating problem caused by poor contact.

[0062] It is worth mentioning that whether the connecting member 430 is plate-shaped or annular, the profile of the connecting member 430 can be circular, elliptical, triangular, quadrilateral, pentagonal, or irregular. For details, please refer to Figure 11 , wherein (a) is a binding structure 400 of an embodiment, the profile of the connecting member 430 thereof is strip-shaped; (b) is a binding structure 400 of another embodiment, the profile of the connecting member 430 thereof is hexagonal and extends as a whole in a strip shape; (c) is a binding structure 400 of yet another embodiment, the profile of the connecting member 430 thereof is triangular; and (d) is a binding structure 400 of still another embodiment, the profile of the connecting member 430 thereof is square. Preferably, the profile of the connecting member 430 has an included angle formed by the intersection of two adjacent line segments.

[0063] The linear and strip-shaped structures in (a) and (b) are used when two or a multiple of two conductive units are connected in series or in parallel, the triangular structure in (c) is used when three or a multiple of three conductive units are connected in series or in parallel, and the square structure in (d) is used when four or a multiple of four conductive units are connected in series or in parallel. Of course, in other embodiments, the profile shape of the connecting member 430 can not have a corresponding relationship with the number of conductive units.

[0064] In yet another embodiment, please refer to Figure 8 and Figure 11 , (a) and (b) of which the connecting member 430 is long and strip-shaped, the binding members 410 are distributed along the length direction of the connecting member 430, the connecting member 430 is connected to one end of the binding members 410, and the piercing portions 420 are provided at the other end of the binding members 410 opposite the connecting member 430.

[0065] The connection piece 430 is in a strip shape, and the connection piece 430 provides a linear support structure. Compared with a plate-shaped or ring-shaped connection piece 430, the strip-shaped connection piece 430 is more focused on providing support and fixation in one direction. The binding pieces 410 are distributed along the length direction of the connection piece 430, which helps to ensure uniform stress and stable electrical connection between the conductive units. Referring to Figure 8 , two binding pieces 410 are respectively arranged at the two ends of the length direction of the connection piece 430; referring to Figure 11 (a), the binding pieces 410 are sequentially and evenly distributed along the length direction of the connection piece 430; referring to Figure 11 (b), the binding pieces 410 are sequentially and evenly distributed along the edges of the connection piece 430, and the binding pieces 410 are connected to the vertices of the edges of the connection piece 430. One end of each binding piece 410 is fixed on the strip-shaped connection piece 430, and the other end is provided with a piercing part 420, and the binding piece 410 can effectively penetrate the base to achieve stable physical connection and reliable electrical connection.

[0066] In an embodiment, referring to Figure 1 and Figure 2 , the plurality of conductive units include a first conductive unit 100 and a second conductive unit 200 arranged below the first conductive unit 100, the first conductive unit 100 includes a first base 110 and a first tab 120, the second conductive unit 200 includes a second base 210 and a second tab 220, and the distribution direction of the first tab 120 and the first base 110 and the distribution direction of the second tab 220 and the second base 210 are the same.

[0067] The distribution direction of the first tab 120 and the first base 110 and the distribution direction of the second tab 220 and the second base 210 are the same. This means that whether it is the first conductive unit 100 or the second conductive unit 200, the tabs of them are arranged in the same way relative to their bases.

[0068] Referring to Figure 1The first tab 120 is located above the first substrate 110, and the second tab 220 is also located above the second substrate 210. The first tab 120, the first substrate 110, the second tab 220, and the second substrate 210 are sequentially arranged in the stacking direction of the conductive units and are penetrated by the binding member 410; the connecting member 430 is arranged above the first tab 120 and abuts against the first tab 120, so that the connection between the first conductive unit 100 and the second conductive unit 200 is more closely connected, and the contact area between the binding structure 400 and the first tab 120 is also increased; the piercing portion 420 penetrates the second substrate 210 and is embedded in the second tab 220, thereby increasing the contact area between the binding structure 400 and the second tab 220 and reducing the electrical resistance between the binding structure 400 and the second tab 220. Through such a design, not only is the electrical resistance of the thin-film electrical device 10 with a piercing structure greatly reduced, but also the stability and reliability of the connection between the first conductive unit 100 and the second conductive unit 200 are improved.

[0069] Please refer to Figure 2 The first tab 120 is located below the first substrate 110, and the second tab 220 is also located below the second substrate 210. The first substrate 110, the first tab 120, the second substrate 210, and the second tab 220 are sequentially arranged in the stacking direction of the conductive units and are penetrated by the binding member 410; the connecting member 430 is arranged above the first substrate 110 and exerts a certain pressure on the first substrate 110, so that the connection between the first conductive unit 100 and the second conductive unit 200 is more closely connected; the piercing portion 420 penetrates the second tab 220 and the second substrate 210, thereby increasing the contact area between the binding structure 400 and the second tab 220 and reducing the electrical resistance between the binding structure 400 and the second tab 220. Through such a design, not only is the electrical resistance of the thin-film electrical device 10 with a piercing structure greatly reduced, but also the stability and reliability of the connection between the first conductive unit 100 and the second conductive unit 200 are improved.

[0070] The tabs of all conductive units are located on the same side of the substrate, and the standardized components are easier to be automatically produced and assembled, thereby simplifying the production process, improving the production efficiency, and reducing the manufacturing cost. At the same time, the standardized component design and clear layout are conducive to quickly replacing faulty components. Since all conductive units follow the same tab and substrate distribution principle, the replacement and repair work becomes more intuitive and simple, which is conducive to reducing the maintenance time and cost. The design of the piercing portion 420 increases the support force of the binding structure 400 on the conductive units, especially in the case of multi-layer stacking, which can effectively prevent the relative movement between the conductive units and ensure the reliability of the electrical connection between the conductive units.

[0071] In an embodiment, please refer to Figure 3The first tab 120, the first base 110, the second tab 220 and the second base 210 are sequentially arranged, and the first tab 120 and the second tab 220 are arranged correspondingly. The plurality of conductive units further comprises a third conductive unit 300 arranged between the first conductive unit 100 and the second conductive unit 200. The third conductive unit 300 comprises a third base 310 and a third tab 320. The third tab 320 is arranged between the third base 310 and the second tab 220 and abuts against the second tab 220. The puncture part 420 penetrates the second base 210 and the second tab 220.

[0072] The first tab 120 is located above the first base 110, and the second tab 220 is also located above the second base 210. The first tab 120 and the second tab 220 are arranged correspondingly, that is, the projections of the first tab 120 and the second tab 220 in the stacking direction overlap. The third conductive unit 300 is located between the first conductive unit 100 and the second conductive unit 200. The distribution directions of the third base 310 and the third tab 320 are different from those of the first conductive unit 100 and the second conductive unit 200. The third tab 320 is located below the third base 310, so that the third tab 320 is arranged between the third base 310 and the second tab 220 and directly abuts against the second tab 220. In addition to realizing electrical connection with the first conductive unit 100 and the second conductive unit 200 through the binding part 410, the third conductive unit 300 also establishes electrical connection with the second conductive unit 200 in the manner of directly contacting the second tab 220. The design that the third tab 320 directly abuts against the second tab 220 enables the current to directly flow from the second conductive unit 200 to the third conductive unit 300, reduces the contact resistance and improves the current transmission efficiency. The puncture part 420 penetrates the second base 210 and the second tab 220, ensuring that the binding part 410 not only fixes the positions of the conductive units and enhances the stability of the connection between the three conductive units, but also increases the contact area between the binding structure 400 and the second tab 220 and reduces the resistance between the binding structure 400 and the second tab 220.

[0073] In an embodiment, referring to Figure 4 The first base 110, the first tab 120, the second base 210 and the second tab 220 are sequentially arranged, and the first tab 120 and the second tab 220 are arranged correspondingly. The plurality of conductive units further comprises a third conductive unit 300 arranged above the first conductive unit 100. The third conductive unit 300 comprises a third base 310 and a third tab 320. The third tab 320 is arranged above the third base 310. The puncture part 420 penetrates the second tab 220 and the second base 210 and connects the first tab 120.

[0074] The first tab 120 is located below the first substrate 110, and the second tab 220 is also located below the second substrate 210. The third conductive unit 300 is located above the first conductive unit 100, and the distribution direction of the third substrate 310 and the third tab 320 is different from that of the first conductive unit 100 and the second conductive unit 200. The third tab 320 is located above the third substrate 310, so that the third substrate 310 is arranged between the first substrate 110 and the third tab 320 and directly abuts against the first substrate 110. The connecting piece 430 is arranged above the third tab 320 and abuts against the third tab 320, so that the connection between the third conductive unit 300 and the first conductive unit 100 and the second conductive unit 200 is more closely connected, and the contact area between the binding structure 400 and the third tab 320 is also increased. The puncture part 420 penetrates the second tab 220 and the second substrate 210 and connects the first tab 120. The puncture part 420 is at least partially embedded in the first tab 120, avoiding the problem that the thin thickness of the tab causes the substrate to cover the puncture part 420, so that the puncture part 420 is insulated from the tab and causes poor conductivity.

[0075] In an embodiment, referring to Figure 5 , the first substrate 110, the first tab 120, the second substrate 210, and the second tab 220 are sequentially arranged, and the first tab 120 and the second tab 220 are correspondingly arranged. The plurality of conductive units further include a third conductive unit 300 arranged below the second conductive unit 200, the third conductive unit 300 including a third substrate 310 and a third tab 320, the third tab 320 being arranged above the third substrate 310; the binding piece 410 has two opposite end portions each provided with a puncture part 420, one of the puncture parts 420 penetrating the first substrate 110 and the first tab 120, and the other puncture part 420 penetrating the third substrate 310 and the third tab 320.

[0076] The first tab 120 is located below the first substrate 110, and the second tab 220 is also located below the second substrate 210. The third conductive unit 300 is located below the first conductive unit 100, and the distribution direction of the third substrate 310 and the third tab 320 is different from that of the first conductive unit 100 and the second conductive unit 200. The third tab 320 is located above the third substrate 310, and the third tab 320 directly abuts against the second tab 220, so that the current can directly flow from the second conductive unit 200 to the third conductive unit 300, reducing the contact resistance and improving the current transmission efficiency. It is worth mentioning that, since the second tab 220 and the third tab 320 are in direct contact, the puncture part 420 does not need to penetrate the third tab 320 to ensure the conductivity. Of course, in other embodiments, the puncture part 420 can also penetrate the third tab 320.

[0077] The two opposite ends of each binding member 410 are provided with piercing portions 420, one of which on each binding member 410 is provided to pass through the first base 110 and the first tab 120, thereby increasing the contact area between the binding structure 400 and the first tab 120 and reducing the electrical resistance between the binding structure 400 and the first conductive unit 100; the other one is provided to pass through the third base 310 and the third tab 320, thereby increasing the contact area between the binding structure 400 and the third tab 320 and reducing the electrical resistance between the binding structure 400 and the third conductive unit 300. The piercing portions 420 at the two ends of the binding member 410 create more contact points for electrical connection, which not only further reduces the electrical resistance of the thin-film electrical device 10 with piercing structure, but also helps to improve the conduction efficiency of the current and reduce the heating problem caused by poor contact. In addition, the binding member 410 penetrates the corresponding base and tab from both ends, greatly enhancing the connection strength and stability between the three conductive units, thereby forming a double-sided fixing mechanism for the thin-film electrical device 10 with piercing structure, which helps to prevent displacement or damage between the conductive units due to external pressure or vibration. In this embodiment, the connection member 430 is cancelled, thereby cancelling the restriction of the connection member 430 on the conductive units, and further enabling more flexible and diversified combination connection of the conductive units by the piercing portions 420.

[0078] In an embodiment, referring to Figure 6 , the plurality of conductive units include a first conductive unit 100 and a second conductive unit 200 arranged below the first conductive unit 100, the first conductive unit 100 includes a first base 110 and a first tab 120, the second conductive unit 200 includes a second base 210 and a second tab 220, the first tab 120, the first base 110, the second tab 220 and the second base 210 are arranged in sequence, and the first tab 120 and the second tab 220 are arranged in staggered manner; the binding member 410 includes a first binding portion 411 and a second binding portion 412, the first binding portion 411 passes through the first tab 120, the first base 110 and the second base 210, the second binding portion 412 passes through the first base 110, the second tab 220 and the second base 210, the upper ends of the first binding portion 411 and the second binding portion 412 are connected by the connection member 430, the lower end of the first binding portion 411 is provided with a fixing portion 440 abutting against the lower surface of the second base 210, and the lower end of the second binding portion 412 is provided with a piercing portion 420 passing through the second tab 220 and the second base 210.

[0079] The first tab 120 is located above the first substrate 110, and the second tab 220 is also located above the second substrate 210. Unlike other embodiments, the first tab 120 and the second tab 220 are misaligned, that is, the projections of the first tab 120 and the second tab 220 in the stacking direction do not overlap or partially overlap. The first binding part 411 penetrates the first tab 120, the first substrate 110, and the second substrate 210, and has a lower end provided with a fixing part 440 abutting against the lower surface of the second substrate 210 to provide physical support, prevent relative movement between the conductive units, and further enhance the stability of the connection between the first conductive unit 100 and the second conductive unit 200 and the mechanical properties of the thin-film electrical device 10 as a whole. The second binding part 412 penetrates the first substrate 110, the second tab 220, and the second substrate 210, and has a lower end provided with a piercing part 420 penetrating the second tab 220 and the second substrate 210 to increase the contact area between the binding structure 400 and the second tab 220 and reduce the electrical resistance between the binding structure 400 and the second conductive unit 200. The upper ends of the first binding part 411 and the second binding part 412 are connected by a connecting piece 430 to form an integral frame, which increases the stability and strength of the binding structure 400 and effectively resists external impact and vibration, ensuring the stability of the connection between the first conductive unit 100 and the second conductive unit 200. Although the first tab 120 and the second tab 220 are misaligned, the design of connecting the first binding part 411 and the second binding part 412 by the connecting piece 430 achieves effective electrical connection, ensuring the continuity and reliability of the current path.

[0080] In an embodiment, referring to Figure 7 Figure 8 , the plurality of conductive units include a first conductive unit 100 and a second conductive unit 200 located below the first conductive unit 100, the first conductive unit 100 includes a first substrate 110 and a first tab 120, the second conductive unit 200 includes a second substrate 210 and a second tab 220, the first substrate 110, the first tab 120, the second substrate 210, and the second tab 220 are sequentially arranged, and the first tab 120 and the second tab 220 are oppositely arranged; the binding member 410 includes a first binding part 411 and a second binding part 412, the first binding part 411 penetrates the first substrate 110 and the first tab 120, the second binding part 412 penetrates the first substrate 110, the first tab 120, the second substrate 210, and the second tab 220, the upper ends of the first binding part 411 and the second binding part 412 are connected by a connecting piece 430, the lower end of the first binding part 411 is provided with a fixing part 440 abutting against the lower surface of the first tab 120, and the lower end of the second binding part 412 is provided with a piercing part 420 penetrating the second tab 220 and the second substrate 210.

[0081] The first lug 120 is located below the first base 110, and the second lug 220 is also located below the second base 210. The first binding part 411 penetrates the first base 110 and the first lug 120, and the lower end of the first binding part 411 is provided with a fixed part 440 abutting against the lower surface of the first lug 120, thereby increasing the contact area between the binding structure 400 and the first lug 120 and reducing the electrical resistance between the binding structure 400 and the first conductive unit 100. The second binding part 412 penetrates the first base 110, the first lug 120, the second base 210 and the second lug 220, and the lower end of the second binding part 412 is provided with a puncture part 420. The puncture part 420 penetrates the second lug 220 and the second base 210, thereby increasing the contact area between the binding structure 400 and the second lug 220 and reducing the electrical resistance between the binding structure 400 and the second conductive unit 200. The upper ends of the first binding part 411 and the second binding part 412 are connected by a connecting part 430 to form an integral frame, thereby increasing the stability and strength of the binding structure 400 and effectively resisting external impact and vibration to ensure the stability of the connection between the first conductive unit 100 and the second conductive unit 200.

[0082] In the embodiment, the binding structure 400 needs to be divided into two steps to bind the first conductive unit 100 and the second conductive unit 200, and through the binding mode, the connection of the first conductive unit 100 and the second conductive unit 200 is more stable.

[0083] The utility model also proposes a power supply system, the power supply system includes the thin film electric device 10 containing puncture structure, the specific structure of thin film electric device 10 containing puncture structure refers to the above embodiment, because the power supply system adopts all the technical schemes of the above all embodiments, therefore at least has all the beneficial effects brought by the technical scheme of the above embodiment, here will not repeat.

[0084] Among them, the plurality of conductive units connected by the binding structure 400 are thin film battery units, or among the plurality of conductive units connected by the binding structure 400, at least one conductive unit is a thin film battery unit, and at least one conductive unit is a thin film electric connection terminal of an electric appliance.

[0085] The thin film electric device 10 containing puncture structure can be a thin film battery or an electric appliance.

[0086] The plurality of thin film battery cells can be connected together by the binding structure 400, one thin film battery cell can be connected to one or more thin film electrical connection terminals of the electrical device by the binding structure 400, or the plurality of thin film battery cells can be connected to one or more thin film electrical connection terminals of the electrical device by the binding structure 400. The thin film electrical connection terminal refers to a specially designed sheet or area on the electrical device for direct contact with the thin film battery cell and form an electrical connection. At least one binding member 410 is inserted through the thin film electrical connection terminal and the thin film battery cell, and the binding member 410 not only serves as a physical fixation, but also serves as an electrical connection. The electrical device and the thin film battery are directly connected by the binding structure 400, without the need for additional wires or other connectors, simplifying the complexity of the power supply system and reducing the assembly steps. The direct penetration type of electrical connection method reduces the contact resistance, improves the current transmission efficiency, and the binding structure 400 provides mechanical fixation, enhances the stability of the entire power supply system, and reduces the risk of failure due to poor connection.

[0087] In an embodiment, the plurality of thin film battery cells are bound by the binding structure 400, and then connected to the thin film electrical connection terminal by another binding structure 400. In another embodiment, the thin film battery cell and the thin film electrical connection terminal are connected by the same binding structure 400.

[0088] The above description is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation or direct / indirect application in other related technical fields within the technical concept of the present application, as described in the present application and the accompanying drawings, is included in the patent protection scope of the present application.

Claims

1. A thin film electrical device comprising a puncturing structure, characterized in that, The application relates to a binding structure of a plurality of conductive units. The binding structure comprises a plurality of conductive units, the conductive units comprising a substrate and a tab, the tab being arranged on one side of the substrate, and the plurality of conductive units being arranged in a stack. The binding structure comprises at least one binding member, the binding member penetrating the substrate and the tab to connect the plurality of conductive units in series or in parallel.

2. The thin film device containing a piercing structure of claim 1, wherein, The end of the binding member is provided with a folded puncture part, and the puncture part forms an acute angle with the binding member.

3. The thin film device containing a piercing structure of claim 2, wherein the piercing structure is formed by a laser beam. The puncture part penetrates at least one of the substrates. The binding structure further comprises a connecting member, and the binding members are connected by the connecting member.

4. The thin film device containing a piercing structure of claim 1, wherein the piercing structure is formed by a laser beam. The binding member is in the shape of a rod.

5. The thin film device containing a piercing structure according to claim 4, wherein The binding member is in the shape of a cylinder, and the puncture part is arranged at the upper end and / or the lower end of the binding member.

6. The thin film device containing a piercing structure according to claim 4, wherein The plurality of conductive units comprises a first conductive unit and a second conductive unit arranged below the first conductive unit.

7. The thin film device containing a piercing structure according to claim 4, wherein The first conductive unit comprises a first substrate and a first tab, and the second conductive unit comprises a second substrate and a second tab. The first tab and the first substrate are arranged in the same direction, and the second tab and the second substrate are arranged in the same direction.

8. The thin film device containing a piercing structure of claim 2, wherein the piercing structure is formed by a laser beam. The first tab, the first substrate, the second tab and the second substrate are arranged in sequence, and the first tab and the second tab are arranged correspondingly. The plurality of conductive units further comprises a third conductive unit arranged between the first conductive unit and the second conductive unit. The third conductive unit comprises a third substrate and a third tab. The third tab is arranged between the third substrate and the second tab, and abuts against the second tab. The puncture part penetrates the second substrate and the second tab. The first substrate, the first tab, the second substrate and the second tab are arranged in sequence, and the first tab and the second tab are arranged correspondingly. The plurality of conductive units further comprises a third conductive unit arranged above the first conductive unit. The third conductive unit comprises a third substrate and a third tab. The third tab is arranged above the third substrate. The puncture part penetrates the second tab and the second substrate, and connects the first tab. The first substrate, the first tab, the second substrate and the second tab are arranged in sequence, and the first tab and the second tab are arranged correspondingly. The plurality of conductive units further comprises a third conductive unit arranged below the second conductive unit. The third conductive unit comprises a third substrate and a third tab. The third tab is arranged above the third substrate. The puncture part penetrates the first substrate and the first tab, and the other puncture part penetrates the third substrate and the third tab. The plurality of conductive units comprises a first conductive unit and a second conductive unit arranged below the first conductive unit. The first conductive unit comprises a first substrate and a first tab, and the second conductive unit comprises a second substrate and a second tab. The first tab, the first substrate, the second tab and the second substrate are arranged in sequence, and the first tab and the second tab are arranged in dislocation. The binding member comprises a first binding part and a second binding part, the first binding part is arranged through the first tab, the first base and the second base, the second binding part is arranged through the first base, the second tab and the second base, the upper ends of the first binding part and the second binding part are connected by the connecting member, the lower end of the first binding part is provided with a fixing part, the fixing part abuts against the lower surface of the second base, the lower end of the second binding part is provided with the puncture part, the puncture part is arranged through the second tab and the second base.

9. The thin film device containing a piercing structure of claim 2, wherein the piercing structure is formed by a laser beam. The plurality of conductive units comprises a first conductive unit and a second conductive unit arranged below the first conductive unit, the first conductive unit comprises a first base and a first tab, the second conductive unit comprises a second base and a second tab, the first base, the first tab, the second base and the second tab are arranged in sequence, and the first tab and the second tab are arranged oppositely. The binding member comprises a first binding part and a second binding part, the first binding part is arranged through the first base and the first tab, the second binding part is arranged through the first base, the first tab, the second base and the second tab, the upper ends of the first binding part and the second binding part are connected by the connecting member, the lower end of the first binding part is provided with a fixing part, the fixing part abuts against the lower surface of the first tab, the lower end of the second binding part is provided with the puncture part, the puncture part is arranged through the second tab and the second base.

10. A power supply system characterized by comprising: The thin film electric device comprising the puncture structure as claimed in any one of claims 1 to 9, the plurality of conductive units connected by the binding structure are all thin film battery units; or in the plurality of conductive units connected by the binding structure, at least one of the conductive units is a thin film battery unit, and at least one of the conductive units is a thin film electric connection terminal of an electric appliance.

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