FPC assembly, battery and electric equipment

Abstract

According to the FPC assembly and the battery, a connecting terminal in a fixed state is fixed to a box body through a fixing base, if an interface of the connecting terminal is shielded, and consequently an external wire harness is not conveniently connected with the connecting terminal in an inserted mode, the connecting terminal and the fixing base can be firstly released from clamping so as to be switched to a movable state, and then the connecting terminal can be connected with the fixing base in an inserted mode; then the connecting terminal is operated to rotate relative to the fixed seat until the interface of the connecting terminal is exposed, so that the external wire harness can be conveniently inserted into the connecting terminal; and after the external wire harness and the connecting terminal are plugged, the connecting terminal is reversely rotated, and the connecting terminal and the fixed seat are clamped. Therefore, the connection terminal rotates relative to the fixed seat, and the plugging of the external wire harness is not limited by the space of the box body, so that the FPC assembly and the battery can be conveniently plugged with the external wire harness. In addition, the invention also provides electric equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic components, and in particular to an FPC assembly, a battery and an electrical device. Background Art

[0002] The low-voltage acquisition components in most battery packs are in the form of FPC (flexible printed circuit board). The flexible circuit board is provided with connecting terminals, which can be plugged into the external wiring harness to output the collected signals. During assembly, the main part of the flexible circuit board covers the surface of the high-voltage component, and the connecting terminals are generally fixed in the shell by threaded fasteners. In order to pursue a higher energy density, the space inside the shell for installing the connecting terminals is limited, which may result in obstruction of the interface of the connecting terminal after it is fixed. Moreover, after the connecting terminal is fixed, the direction of the interface cannot be adjusted, which makes it inconvenient to plug the connecting terminal into the external wiring harness. Summary of the invention

[0003] Based on this, it is necessary to provide an FPC assembly, battery and electrical equipment that are convenient for plugging with an external wiring harness to address the above problems.

[0004] On the one hand, the present application provides an FPC assembly, including a flexible board body, a connecting terminal and a fixing seat, wherein a connecting section extends from at least one edge of the flexible board body, and the connecting section is electrically connected to the connecting terminal. The connecting terminal is rotatably mounted on the fixing seat and has a fixed state in which it is engaged with the fixing seat and an active state in which it is released from the fixing seat. The connecting terminal in the active state can rotate relative to the fixing seat.

[0005] In one of the embodiments, a positioning groove for positioning and cooperating with the positioning column is formed on the flexible plate.

[0006] In one of the embodiments, the FPC assembly is integrated with a low-voltage collection assembly, and a avoidance groove for installing the low-voltage collection assembly is provided on the flexible board.

[0007] In one of the embodiments, the connecting terminal is mounted on the fixed seat via a rotating plate, the rotating plate includes a plate body and a rotating shaft located at one end of the plate body, the rotating shaft is rotatably mounted on the fixed seat, the connecting section is bent into a U shape and covers the plate body, and the connecting terminal is attached to and electrically connected to a side of the connecting section facing away from the plate body.

[0008] In one of the embodiments, a rotating ear with a notch is provided on the fixing seat, and the rotating shaft is rotatably arranged in the rotating ear and can be squeezed through the notch.

[0009] In one of the embodiments, the fixing seat includes a bottom plate and side plates located at opposite ends of the bottom plate, the bottom plate and the side plates enclose a holding space, and the connecting terminal in a fixed state is accommodated and held in the holding space.

[0010] In one embodiment, a hook protruding toward the holding space is formed on an edge of each of the side plates away from one end of the bottom plate, and the connecting terminal in a fixed state is restricted in the holding space by the hook, and the hook can be elastically deformed under the pressure of the connecting terminal to allow the connecting terminal to be inserted into the holding space or withdrawn from the holding space;

[0011] A mounting lug is arranged on a side of each side plate facing away from the holding space, and a mounting hole is provided on the mounting lug.

[0012] On the other hand, the present application provides a battery, comprising a case, a battery cell module, a high-voltage component and an FPC component as described in any one of the above claims, wherein the battery cell module is accommodated in the case, the flexible board is covered on a side of the high-voltage component facing away from the battery cell module, and the fixing base is fixedly installed on the case.

[0013] In one of the embodiments, a positioning column is formed on the high-voltage component, a positioning groove is formed on the flexible plate, and the positioning column passes through the positioning groove.

[0014] In addition, the present application also provides an electrical device, comprising a battery as described in any one of the above preferred embodiments.

[0015] Compared with the prior art, this application has the following beneficial effects:

[0016] The above-mentioned FPC assembly and battery, the connection terminal in a fixed state is fixed to the box through the fixing seat. If the interface of the connection terminal is blocked, making it inconvenient for the external wiring harness to be plugged in with the connection terminal, the connection terminal and the fixing seat can be unfastened to switch to the active state, and then the connection terminal can be rotated relative to the fixing seat until the interface of the connection terminal is exposed, so as to facilitate the plugging of the external wiring harness and the connection terminal; after the external wiring harness and the connection terminal are plugged in, the connection terminal can be rotated in the opposite direction and the connection terminal can be plugged in with the fixing seat. It can be seen that by rotating the connection terminal relative to the fixing seat, the plugging of the external wiring harness will not be limited by the box space, so the above-mentioned FPC assembly and battery can be easily plugged in with the external wiring harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a battery in a preferred embodiment of the present invention;

[0019] Figure 2 for Figure 1 An exploded view of the battery shown;

[0020] Figure 3 for Figure 1 The schematic diagram of the partial structure of the battery shown is omitting the box cover;

[0021] Figure 4 for Figure 3 An enlarged schematic diagram of a part A in a partial structure of the battery shown;

[0022] Figure 5 for Figure 1 A schematic diagram of the structure of the FPC assembly in the battery shown;

[0023] Figure 6 for Figure 5 An enlarged schematic diagram of a portion of the structure in the FPC assembly shown;

[0024] Figure 7 for Figure 6 Schematic diagram of the exploded view of some structures in the FPC assembly shown. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0031] See also Figure 1 and Figure 2 , the present invention provides a battery 10. In addition, the present invention also provides an electrical device.

[0032] The above-mentioned electrical equipment includes the above-mentioned battery 10, and can be provided with electrical energy by the above-mentioned battery 10. Among them, the above-mentioned electrical equipment can be a vehicle, a spacecraft, an electric toy, an electric tool, an energy storage device, an amusement equipment, and the like. The vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.; the spacecraft includes an airplane, a rocket, a space shuttle and a spacecraft, etc.; the electric toy includes a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy or an electric airplane toy, etc.; the electric tool includes a metal cutting electric tool, a grinding electric tool, an assembly electric tool and an electric tool for railways, for example, an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator and an electric planer, etc.; the energy storage device can be an energy storage wall, a base station energy storage, a container energy storage, etc.; the amusement equipment can be a carousel, a jumping machine, etc. This application does not impose any special restrictions on the above-mentioned electrical equipment.

[0033] For new energy vehicles, the battery 10 can be used as a driving power source to replace fossil fuels to provide driving power. The battery 10 includes an FPC assembly 100, a box 200, a battery cell module 300 and a high-voltage assembly 400.

[0034] The box 200 is formed with a containing space for accommodating components such as the FPC assembly 100, the battery module 300 and the high-voltage assembly 400. The box 200 is generally formed of sheet metal and has high mechanical strength. Specifically, the box 200 includes a bottom shell 210 and a box cover 220. The bottom shell 210 is a hollow structure with an opening on one side. The box cover 220 can be fixed to the bottom shell 210 by welding, threaded fastening, etc. and close the opening of the bottom shell 210. The outer contour of the box 200 can be square, cylindrical, etc., and can be matched according to the shape of the actual installation space of the battery 10.

[0035] In addition, a crossbeam 211 is generally provided in the bottom shell 210, and the crossbeam 211 divides the space inside the bottom shell 210 into a battery compartment and an electrical compartment. The battery cell module 300 is accommodated in the battery compartment, and the electrical compartment is used to accommodate electrical components such as wires and connectors.

[0036] The battery cell module 300 includes a plurality of battery cells, and the plurality of battery cells can be electrically connected in series, in parallel, or in a combination of series and parallel through the high-voltage assembly 400. The battery cells can be lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, and their outer contours can be cylindrical, flat, rectangular, or in other shapes, but are not limited thereto. Specifically, in the present embodiment, the battery cells are lithium-ion cylindrical batteries. The high-voltage assembly 400 includes a support plate 410 and a bar 420 mounted on the support plate 410. The high-voltage assembly 400 is mounted above the battery cell module 300, and two adjacent battery cells can be electrically connected through the bar 420.

[0037] Please also read Figure 3 and Figure 4 The FPC assembly 100 is integrated with a low-voltage collection assembly. Specifically, the low-voltage collection assembly includes a nickel sheet 510 and a temperature sensor (NTC) 520. A number of avoidance grooves (not shown) are formed on the surface of the FPC assembly 100 corresponding to the temperature sensor 520 and the nickel sheet 510 for installation of the nickel sheet 510 and the temperature sensor 520. The nickel sheet 510 is attached to the bar sheet 420 to collect the voltage signal of each battery cell; the temperature sensor 520 is attached to the top cover of the battery cell to collect the temperature signal of each battery cell. The FPC assembly 100 can summarize the collected voltage and temperature signals and output them externally, so as to facilitate real-time monitoring of the working status of the battery 10.

[0038] In addition, the above-mentioned battery 10 generally also includes a thermal management module 600, which includes a plurality of liquid cooling plates (not shown) arranged between the battery cells of the battery module 300. The liquid cooling plate is fixedly installed on the bottom wall of the box body 200, and a cooling channel for the coolant to flow through is arranged inside the liquid cooling plate. The coolant flowing through the cooling channel can exchange heat with the battery cells, thereby achieving the purpose of temperature control of the battery 10. The liquid cooling plate generally adopts a serpentine plate, which can better match the side shape of the cylindrical battery cell, thereby increasing the contact surface and heat exchange efficiency.

[0039] Please also read Figure 5 and Figure 6 The FPC assembly 100 in a preferred embodiment of the present invention includes a flexible board body 110 , a connecting terminal 120 and a fixing seat 130 .

[0040] The flexible board 110 is based on a flexible material such as polyimide or polyester film, on which a printed circuit for realizing the required functions is printed, and it has high reliability. The avoidance groove for installing the nickel sheet 510 and the NTC is opened on the flexible board 110, and the routing of the printed circuit avoids the slotted position of the avoidance groove. Among them, at least one edge of the flexible board 110 extends a connecting section 111. The connecting section 111 is used to connect with the connecting terminal 120, and the number of the connecting sections 111 can be set according to the connecting terminals 120 included in the FPC assembly 100. The connecting terminal 120 is electrically connected to the connecting section 111, and the flexible board 110 can transmit various signals collected by the low-voltage collection component to the connecting terminal 120, and output them to the outside from the connecting terminal 120.

[0041] During actual use of the battery 10, an external wiring harness (not shown) for signal transmission needs to be plugged into the connection terminal 120. The external wiring harness can be electrically connected to an external thermal management system, BMS (battery management system) and other electronic control modules, thereby transmitting various signals output by the connection terminal 120 to the corresponding electronic control module to achieve real-time monitoring of the working status of the battery 10.

[0042] The fixing seat 130 supports the connecting terminal 120 and can be formed of materials such as plastic and resin. When the battery 10 is assembled, the flexible board 110 is covered on the side of the high-voltage component 400 facing away from the battery module 300, and the fixing seat 130 is fixedly installed on the box body 200. Specifically, the fixing seat 130 can be fixedly installed with the box body 200 in a detachable manner, such as threaded fastening or snap-on, or can be fixedly installed with the box body 200 in a non-detachable manner such as bonding or welding. More specifically, the fixing seat 130 is preferably installed on the crossbeam 211, and the interface of the connecting terminal 120 connected thereto is arranged toward the above-mentioned electrical compartment, so as to facilitate the connection between the connecting terminal 120 and the external wiring harness.

[0043] Please refer again Figure 2 and Figure 4 In this embodiment, a positioning groove 112 for positioning with the positioning column 441 is provided on the flexible board 110. The positioning column 441 is generally formed on the support plate 410 of the high-voltage assembly 400. The positioning groove 112 cooperates with the positioning column 441 to facilitate the assembly of the FPC assembly 100. Moreover, the positioning groove 112 cooperates with the positioning column 441 to prevent the flexible board 110 from shifting in the box 200, thereby ensuring the stability of the FPC assembly 100.

[0044] In addition, in this embodiment, a glue injection hole 113 is provided on the flexible board 110. The glue injection hole 113 facilitates filling the sealing glue between the battery cells in the box 200 after assembly, thereby strengthening the integrity of the battery module 300 and improving the resistance to external impact and vibration.

[0045] Furthermore, the connection terminal 120 is rotatably mounted on the fixing seat 130 and has a fixed state in which the connection terminal 120 is engaged with the fixing seat 130 and an active state in which the connection terminal 120 is released from the fixing seat 130. The connection terminal 120 in the active state can rotate relative to the fixing seat 130.

[0046] In the actual application scenario of the battery 10, the connection terminal 120 is in a fixed state and is fixed to the box 200 through the fixing seat 130. If the interface of the connection terminal 120 is blocked, making it inconvenient for the external wiring harness to be plugged into the connection terminal 120, the connection terminal 120 and the fixing seat 130 can be unfastened to switch the connection terminal 120 to an active state. Then, the connection terminal 120 is rotated relative to the fixing seat 130 until the interface of the connection terminal 120 is exposed, thereby facilitating the plugging of the external wiring harness and the connection terminal 120. After the external wiring harness and the connection terminal 120 are plugged in, the connection terminal 120 is rotated in the opposite direction, and the connection terminal 120 is plugged into the fixing seat 130, and the connection terminal 120 can be fixed again.

[0047] For example, after the battery 10 is assembled, the interface of the connection terminal 120 in a fixed state faces downward and is blocked by the side wall of the box 200. When connecting the external wiring harness, the connection terminal 120 and the fixing seat 130 can be released first, and the connection terminal 120 can be rotated to a horizontal state, so that the interface of the connection terminal 120 is switched to a horizontal direction to facilitate the plugging of the external wiring harness in the horizontal direction. After the external wiring harness and the connection terminal 120 are plugged in, the connection terminal 120 is rotated in the opposite direction so that its interface faces downward and is plugged in with the fixing seat 130. It can be seen that by rotating the connection terminal 120 relative to the fixing seat 130, the plugging of the external wiring harness will not be limited by the space of the box 200, and the operation is more convenient.

[0048] Please also read Figure 7 In this embodiment, the connecting terminal 120 is installed on the fixing base 130 through the rotating plate 140. The rotating plate 140 includes a plate body 141 and a rotating shaft 142 located at one end of the plate body 141. The rotating shaft 142 is rotatably installed on the fixing base 130. The connecting section 111 is bent into a U shape and covers the plate body 141. The connecting terminal 120 is attached to and electrically connected to the side of the connecting section 111 facing away from the plate body 141.

[0049] The plate body 141 and the rotating shaft 142 can be integrally formed, and the connecting section 111 and the plate body 141 as well as the connecting terminal 120 and the connecting section 111 can be bonded with structural adhesive. When the connecting terminal 120 is operated to rotate relative to the fixing seat 130, the rotating shaft 142 rotates around its own axis, and the plate body 141, the connecting section 111 and the connecting terminal 120 rotate as a whole. In this way, it is possible to avoid pulling on the connection between the connecting section 111 and the connecting terminal 120, and ensure the reliability of the connection between the connecting terminal 120 and the flexible plate body 110.

[0050] Furthermore, in this embodiment, a rotating ear 133 having a notch (not shown) is disposed on the fixing seat 130 , and the rotating shaft 142 is rotatably disposed in the rotating ear 133 and can be squeezed through the notch.

[0051] During assembly, the connecting section 111 can be firstly covered on the plate body 141, and then the connecting terminal 120 and the connecting section 111 can be attached and connected, and finally the rotating shaft 142 can be inserted into the rotating ear 133 through the notch, which is more convenient to operate. Moreover, when the connecting terminal 120 is damaged, the connecting terminal 120 can be completely removed from the fixing seat 130 by pushing the rotating shaft 142 out of the notch, so that the connecting terminal 120 can be easily replaced.

[0052] In addition, in this embodiment, the fixing seat 130 includes a bottom plate 131 and side plates 132 located at opposite ends of the bottom plate 131. The bottom plate 131 and the side plates 132 are arranged to form a clamping space (not shown in the figure), and the connection terminal 120 in a fixed state is received and clamped in the clamping space. When the connection terminal 120 is clamped into the clamping space, the bottom plate 131 and the side plates 132 are distributed on the periphery of the connection terminal 120, which can play a better role in limiting and protecting the connection terminal 120.

[0053] More specifically, the fixing base 130 is further provided with a back plate 134, the two side edges of the back plate 134 in the length direction are connected to the two side plates 132, and one edge in the width direction is connected to the bottom plate 131. In this way, the formed holding space is more closed, and the limiting and protective effects on the connection terminal 120 are also better. Of course, the omission of the back plate 134 does not affect the fixing base 130 supporting the connection terminal 120.

[0054] Furthermore, in the present embodiment, a hook 1321 is formed at the edge of one end of each side plate 132 away from the bottom plate 131 and protrudes toward the holding space. The connecting terminal 120 in a fixed state is confined in the holding space by the hook 1321. The hook 1321 can be elastically deformed under the squeezing of the connecting terminal 120 to allow the connecting terminal 120 to be inserted into the holding space or withdrawn from the holding space.

[0055] The hook 1321 can prevent the connection terminal 120 from rotating, thereby keeping the connection terminal 120 in a fixed state. When the connection terminal 120 needs to be switched to an active state, the connection terminal 120 is rotated out of the holding space and the hook 1321 is forced to deform until the connection terminal 120 is withdrawn from the holding space. When the connection terminal 120 needs to be switched to a fixed state, the connection terminal 120 is rotated into the holding space and the hook 1321 is forced to deform until the connection terminal 120 is locked into the holding space.

[0056] Under the action of the hook 1321, when the connection terminal 120 and the fixing seat 130 are released from the locking, a large resistance needs to be overcome, so it is difficult for the two to be separated by general vibration or impact, thereby ensuring the stability of their matching. In addition, when the connection terminal 120 and the fixing seat 130 are locked or released, it is only necessary to rotate the connection terminal 120 and overcome the resistance of the hook 1321, without additional operation, which is more convenient to use.

[0057] Specifically, in this embodiment, a mounting lug 1322 is provided on the side of each side plate 132 facing away from the holding space, and a mounting hole (not shown) is provided on the mounting lug 1322. The fastening screw can pass through the mounting hole and fix the mounting lug 1322 to the structure such as the crossbeam 211 in the box body 200, thereby fixing the fixing seat 130. Obviously, in other embodiments, the fixing seat 130 can also be fixed to the box body 200 by bonding the bottom plate 131 to the crossbeam 211.

[0058] The above-mentioned FPC assembly 100 and battery 10, the connection terminal 120 is fixed to the box body 200 through a fixing seat. If the interface of the connection terminal 120 is blocked, which makes it inconvenient for the external wiring harness to be plugged into the connection terminal 120, the connection terminal 120 and the fixing seat 130 can be first released, and then the connection terminal 120 can be rotated relative to the fixing seat until the interface of the connection terminal 120 is exposed, so as to facilitate the plugging of the external wiring harness and the connection terminal 120; after the external wiring harness and the connection terminal 120 are plugged in, the connection terminal 120 can be rotated in the opposite direction, and the connection terminal 120 can be plugged in with the fixing seat. It can be seen that by rotating the connection terminal 120 relative to the fixing seat 130, the plugging of the external wiring harness will not be limited by the space of the box body 200, so the above-mentioned FPC assembly 100 and battery 10 are convenient for plugging into the external wiring harness.

[0059] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An FPC assembly (100), characterized in that: The invention comprises a flexible board body (110), a connecting terminal (120) and a fixing seat (130); a connecting section (111) extends from at least one edge of the flexible board body (110); the connecting section (111) is electrically connected to the connecting terminal (120); the connecting terminal (120) is rotatably mounted on the fixing seat (130) and has a fixed state in which the connecting terminal is engaged with the fixing seat (130) and an active state in which the connecting terminal (120) is released from the engaging state; the connecting terminal (120) in the active state can rotate relative to the fixing seat (130).

2. The FPC assembly (100) according to claim 1, characterized in that: The flexible plate body (110) is provided with a positioning groove (112) for positioning and cooperating with the positioning column (441).

3. The FPC assembly (100) according to claim 1, characterized in that: The FPC component (100) is integrated with a low-voltage collection component, and a relief groove for installing the low-voltage collection component is provided on the flexible board body (110).

4. The FPC assembly (100) according to claim 1, characterized in that: The connecting terminal (120) is mounted on the fixing seat (130) via a rotating plate (140); the rotating plate (140) comprises a plate body (141) and a rotating shaft (142) located at one end of the plate body (141); the rotating shaft (142) is rotatably mounted on the fixing seat (130); the connecting section (111) is bent into a U shape and covers the plate body (141); the connecting terminal (120) is attached to and electrically connected to a side of the connecting section (111) facing away from the plate body (141).

5. The FPC assembly (100) according to claim 4, characterized in that: The fixing seat (130) is provided with a rotating ear (133) having a notch, and the rotating shaft is rotatably arranged in the rotating ear (133) and can be squeezed through the notch.

6. The FPC assembly (100) according to claim 1, characterized in that: The fixing seat (130) comprises a bottom plate (131) and side plates (132) located at opposite ends of the bottom plate (131); the bottom plate (131) and the side plates (132) enclose a holding space; the connecting terminal (120) in a fixed state is accommodated and held in the holding space.

7. The FPC assembly (100) according to claim 6, characterized in that: A hook (1321) protruding toward the holding space is formed on the edge of one end of each side plate (132) away from the bottom plate (131); the connection terminal (120) in a fixed state is limited in the holding space by the hook (1321); the hook (1321) can be elastically deformed under the pressure of the connection terminal (120) to allow the connection terminal (120) to be inserted into the holding space or withdrawn from the holding space; A mounting lug (1322) is provided on a side of each side plate (132) facing away from the clamping space, and a mounting hole is provided on the mounting lug (1322).

8. A battery (10), characterized in that: The invention comprises a box (200), a battery module (300), a high-voltage component (400), and an FPC component (100) as described in any one of claims 1 to 7, wherein the battery module (300) is accommodated in the box (200), the flexible board (110) is covered on a side of the high-voltage component (400) facing away from the battery module (300), and the fixing seat (130) is fixedly installed on the box (200).

9. The battery (10) according to claim 8, characterized in that A positioning column (441) is formed on the high-voltage component (400), a positioning groove (112) is formed on the flexible plate body (110), and the positioning column (441) is inserted into the positioning groove (112).

10. An electrical device, characterized in that: Comprising a battery (10) as claimed in claim 8 or 9.

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