Acquisition assembly, battery pack and vehicle

Abstract

The invention discloses an acquisition assembly, a battery pack and a vehicle, and the acquisition assembly comprises a flexible circuit board, a component and a first skeleton. The component is connected to the flexible circuit board; the first framework is provided with a first containing groove, the flexible circuit board is connected to the first framework, and the component is located in the first containing groove, so that when adhesive glue enters the first containing groove to wrap the component, the adhesive glue wrapping the component is located in the first containing groove; the bonding glue wrapping the component is clamped in the first framework and forms a whole with the first framework, so that the internal component and the first framework form a whole. Therefore, in the process that the battery pack is pressed, the pulling force applied to the component by the adhesive is dispersed to the first framework and converted into the pulling force between the first framework and the flexible circuit board, so that the force between the component and the flexible circuit board is reduced, the risk that the component is separated from the flexible circuit board is reduced, and the service life of the battery pack can be prolonged.

Description

Technical Field

[0001] The present invention relates to the field of battery technology, and in particular to a collection component, a battery pack and a vehicle. Background Art

[0002] In some technologies, in order to improve the strength of the battery pack, the battery pack box is filled with foam to connect the components in the box into a whole to improve the strength of the battery pack. However, when the battery pack is squeezed and deformed, the internal foam will also deform. For some acquisition components using flexible circuit boards, the solder joints between the components and the flexible circuit boards are relatively fragile because the flexible circuit boards themselves are relatively thin. Therefore, during the deformation of the foam, it is easy to pull the components connected to the flexible circuit boards, causing the components to detach, which reduces the service life of the battery pack. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a collection component that can be used in a battery pack to increase the service life of the battery pack.

[0004] The present invention also provides a battery pack having the above-mentioned collection component.

[0005] The present invention also provides a vehicle having the battery pack.

[0006] The acquisition component according to the first aspect of the embodiment of the present invention includes a flexible circuit board, components and a first frame.

[0007] The components are connected to the flexible circuit board; the first frame has a first receiving groove, the flexible circuit board is connected to the first frame, and the components are located in the first receiving groove.

[0008] The acquisition component according to the embodiment of the present invention has at least the following beneficial effects:

[0009] In the present embodiment, the flexible circuit board is connected to the first skeleton, and the components are located in the first receiving groove of the first skeleton. Therefore, when the acquisition component of the present embodiment is used in the battery pack, when the adhesive enters the first receiving groove and wraps the components, the adhesive wrapping the components is located in the first receiving groove, that is, the adhesive wrapping the components is connected to the first skeleton and forms a whole with the first skeleton, so that the components located inside it form a whole with the first skeleton. Therefore, during the compression process of the battery pack, the pulling force applied by the adhesive to the components will be dispersed to the first skeleton and converted into a pulling force between the first skeleton and the flexible circuit board, thereby reducing the force between the components and the flexible circuit board and reducing the risk of the components detaching from the flexible circuit board. Therefore, when the acquisition component of the present embodiment is used in the battery pack, the service life of the battery pack can be improved.

[0010] According to some embodiments of the present invention, along the thickness direction of the first skeleton, the size of the first receiving groove is larger than the size of the component.

[0011] According to some embodiments of the present invention, the first skeleton includes a first skeleton portion and a second skeleton portion that do not overlap each other, the flexible circuit board is connected to the first skeleton portion, and the second skeleton portion has a first channel that penetrates along its thickness direction.

[0012] According to some embodiments of the present invention, the first skeleton portion has a second channel penetrating along its thickness direction, and the flexible circuit board has a third channel penetrating along its thickness direction, and the third channel is connected to the second channel.

[0013] According to some embodiments of the present invention, the first skeleton portion has a plurality of the second channels, and at least some of the second channels are the first accommodating grooves.

[0014] According to some embodiments of the present invention, the first skeleton has a first surface, the first surface includes a non-overlapping first connection area and a second connection area, the flexible circuit board is connected to the first connection area, the acquisition component also includes a second skeleton, the thickness of the second skeleton is not less than the thickness of the flexible circuit board, and the second skeleton is connected to the second connection area.

[0015] According to some embodiments of the present invention, the first skeleton has a second surface facing away from the flexible circuit board, and the acquisition component also includes a support member, which is connected to the second surface and protrudes from the second surface along a first direction, and the first direction is the direction from the flexible circuit board to the first skeleton.

[0016] A battery pack according to an embodiment of the second aspect of the present invention comprises a box body, a battery pack, an adhesive and the collection component described in the embodiment of the first aspect.

[0017] The box body includes a cover body and a shell body, the cover body is connected to the shell body, and together with the shell body, forms a receiving cavity; the battery pack includes a plurality of arranged and distributed single cells, and the battery pack is located in the receiving cavity; the collection component is located in the receiving cavity and is electrically connected to the single cells; the adhesive is filled in the receiving cavity.

[0018] The battery pack according to the embodiment of the present invention has at least the following beneficial effects:

[0019] The acquisition component of the first aspect embodiment is adopted, and the flexible circuit board in the acquisition component is connected to the first frame, and the components are located in the first receiving groove of the first frame. When the adhesive enters the first receiving groove and includes the components, the adhesive wrapping the components is located in the first receiving groove, that is, the adhesive wrapping the components is connected to the first frame and forms a whole with the first frame, so that the components located inside it form a whole with the first frame. Therefore, during the pressure process of the battery pack, the pulling force applied by the adhesive to the components will be dispersed to the first frame and converted into a pulling force between the first frame and the flexible circuit board, thereby reducing the force between the components and the flexible circuit board, reducing the risk of the components detaching from the flexible circuit board, and thus improving the service life of the battery pack of this embodiment.

[0020] According to some embodiments of the present invention, the battery pack also includes a connecting assembly, which includes a third skeleton and a plurality of connecting plates, wherein the connecting plates are connected to the third skeleton and to the battery pack so that the single cells are electrically connected in series or in parallel, and the third skeleton has a fourth channel that penetrates along its thickness direction, and a portion of the adhesive is filled in the fourth channel.

[0021] A vehicle according to an embodiment of the third aspect of the present invention comprises a battery pack according to an embodiment of the second aspect.

[0022] The vehicle according to the embodiment of the present invention has at least the following beneficial effects:

[0023] In a battery pack according to an embodiment of the second aspect, a flexible circuit board in the battery pack is connected to a first frame, and components are located in a first receiving groove of the first frame. When the adhesive enters the first receiving groove and includes the components, the adhesive wrapping the components is located in the first receiving groove, that is, the adhesive wrapping the components is connected to the first frame and forms a whole with the first frame, so that the components located inside the battery pack form a whole with the first frame. Therefore, during the pressure process of the battery pack, the pulling force applied by the adhesive to the components will be dispersed to the first frame and converted into a pulling force between the first frame and the flexible circuit board, thereby reducing the force between the components and the flexible circuit board, reducing the risk of the components detaching from the flexible circuit board, and increasing the service life of the battery pack of this embodiment, thereby reducing the maintenance cost of the vehicle.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1It is a structural schematic diagram of a collection component according to an embodiment of the first aspect of the present invention;

[0027] Figure 2 for Figure 1 A magnified schematic diagram of the middle A area;

[0028] Figure 3 for Figure 1 A schematic diagram from another perspective;

[0029] Figure 4 for Figure 1 A magnified schematic diagram of the middle B area;

[0030] Figure 5 A schematic structural diagram of a battery pack according to an embodiment of the second aspect of the present invention;

[0031] Figure 6 for Figure 5 A schematic diagram of the structure of the first frame, the cover body and the support member;

[0032] Figure 7 for Figure 5 Schematic diagram of the structure of the connecting components;

[0033] Figure 8 for Figure 7 Magnified view of area C in the middle;

[0034] Fig. 9 for Figure 7 Magnified view of area D in the middle;

[0035] Fig.10 It is a schematic diagram of a limiter and a single battery.

[0036] Reference numerals:

[0037] Flexible circuit board 100, third channel 110;

[0038] Components 200;

[0039] First frame 300, first accommodating groove 310, first frame part 320, second channel 321, second frame part 330, first channel 331, first surface 340, first connecting area 341, second connecting area 342, second surface 350, second limiting hole 360;

[0040] A second frame 400, a fifth channel 410;

[0041] Support member 500;

[0042] Box body 600, shell body 610, second receiving groove 611, notch 612, cover body 620;

[0043] Battery pack 700, single battery 710, housing 711, first side surface 7111, second side surface 7112, pole 720;

[0044] Connecting assembly 800, third frame 810, fourth channel 811, first limiting hole 812, connecting piece 820;

[0045] Limiting member 900 , limiting surface 910 , connecting portion 920 . DETAILED DESCRIPTION

[0046] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0047] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0049] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0050] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0051] In some technologies, in order to improve the strength of the battery pack, the battery pack box is filled with foam to connect the components in the box into a whole to improve the strength of the battery pack. However, when the battery pack is squeezed and deformed, the internal foam will also deform. For some acquisition components using flexible circuit boards, the solder joints between the components and the flexible circuit boards are relatively fragile because the flexible circuit boards themselves are relatively thin. Therefore, during the deformation of the foam, it is easy to pull the components connected to the flexible circuit boards, causing the components to detach, which reduces the service life of the battery pack.

[0052] Based on the above problems, this embodiment proposes a collection component that can improve the service life of soft-pack batteries. Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the structure of the acquisition component of the first embodiment of the present invention, Figure 2 for Figure 1 In the enlarged schematic diagram of area A, the acquisition component of this embodiment includes a flexible circuit board 100, components 200 and a first skeleton 300.

[0053] The component 200 is, for example, a collection chip, a capacitor or a resistor, and the component 200 is connected to the flexible circuit board 100. The first frame 300 has a first receiving groove 310, the flexible circuit board 100 is connected to the first frame 300, and the component 200 is located in the first receiving groove 310. The first frame 300 is, for example, a metal structure or a non-metallic insulating structure, and when the first frame 300 is a non-metallic insulating structure, the first frame 300 can also play a role in wiring harness isolation, which is used to insulate the flexible circuit board 100 from other structures of the battery pack.

[0054] Specifically, the flexible circuit board 100 is connected to the first frame 300, and the component 200 is located in the first receiving groove 310 of the first frame 300. Therefore, when the acquisition assembly of this embodiment is used in a battery pack, when the adhesive enters the first receiving groove 310 and wraps the component 200, the adhesive wrapping the component 200 (for the convenience of description, unless otherwise specified, the part of the adhesive wrapping the component 200 is referred to as the first colloid) is located in the first receiving groove 310, that is, the first colloid is clamped in the first frame 300 and forms a whole with the first frame 300, so that the component 200 located in the first colloid forms a whole with the first frame 300. Therefore, the pulling force applied by the adhesive to the component 200 will be dispersed to the first frame 300, and converted into a pulling force between the first frame 300 and the flexible circuit board 100, thereby reducing the force between the component 200 and the flexible circuit board 100 and reducing the risk of the component 200 detaching from the flexible circuit board 100. Therefore, when the acquisition component of this embodiment is used in a battery pack, the service life of the battery pack can be increased.

[0055] In addition, since part of the adhesive is located in the first receiving groove 310, that is, part of the adhesive is engaged with the first frame 300, the connection strength between the adhesive and the first frame 300 is improved, thereby improving the strength of the battery pack.

[0056] In some embodiments, the first receiving groove 310 is set as a blind hole of the first frame 300, and the flexible circuit board 100 is connected to the first frame 300 and blocks the first receiving groove 310, so that when the collection assembly of this embodiment is used in a battery pack, the adhesive can be prevented from entering the first receiving groove 310. Therefore, during the deformation of the adhesive, no pulling is applied to the component 200, thereby preventing the component 200 from falling.

[0057] In some embodiments, along the thickness direction of the first frame 300, the size of the first receiving groove 310 is larger than the size of the component 200, that is, the component 200 is completely located in the first receiving groove 310. Therefore, when the adhesive is applied to squeeze the collection component, the squeezing force is mainly concentrated on the first frame 300, and the pressure on the component 200 is reduced, thereby reducing the damage to the component 200 and further increasing the service life of the collection component.

[0058] Reference Figure 1 In some embodiments, the first skeleton 300 includes a first skeleton portion 320 and a second skeleton portion 330 that do not overlap each other, the flexible circuit board 100 is connected to the first skeleton portion 320, and the second skeleton portion 330 has a first channel 331 that runs through the thickness direction thereof, and the first channel 331 is used for the flow of adhesive, and the number of the first channel 331 can be set to one, two, or three or any other number according to the area size of the first skeleton 300. When the collection assembly of this embodiment is used for a battery, the adhesive can flow through the first channel 331, so that the adhesive can more fully fill the entire box 600 of the battery pack, thereby improving the strength of the battery pack. For example, when the collection component of this embodiment is used in a battery pack, the collection component is located between the battery pack 700 and the cover 620 of the battery pack. In the conventional technology, the foam glue usually enters between the cover 620 and the collection component through the edge of the collection component, while the first skeleton 300 of this embodiment has a first channel 331, and the adhesive glue can enter between the collection component and the cover 620 through the first channel 331, so that the adhesive glue between the collection component and the cover 620 is filled more fully, thereby improving the strength of the battery pack and further improving the service life of the battery pack. In addition, the collection component and the cover 620 can be heat-transferred through the adhesive glue, thereby improving the heat dissipation performance of the collection component and improving the safety of the battery pack.

[0059] It should be noted that when the collection component of the present embodiment is used in a battery pack, it is not limited to being set between the cover 620 and the battery pack 700, but can also be set between the battery pack 700 and the side wall of the box 600, that is, the collection component is set on the side of the battery pack 700. In some cases, it can also be set inside the battery pack 700, that is, between the single cells 710. No matter where the collection component is set, the first channel 331 therein can make the adhesive inside the battery pack easier to flow and fill more fully.

[0060] Reference Figure 2 On the basis of the above embodiment, the first skeleton part 320 has a second channel 321 penetrating along its thickness direction, and the flexible circuit board 100 has a third channel 110 penetrating along its thickness direction, and the third channel 110 is connected to the second channel 321, so that when the collection component of this embodiment is used in a battery pack, the adhesive can flow through the third channel 110 and the second channel 321, which can further make the adhesive filling more fully. In addition, the second channel 321 is connected to the third channel 110, that is, when used in a battery pack, the adhesive will enter the second channel 321 and the third channel 110, so that the adhesive is in direct contact with the flexible circuit board 100, thereby improving the heat dissipation performance of the flexible circuit board 100.

[0061] Reference Figure 2 In some embodiments, the first skeleton part 320 has a plurality of second channels 321, at least some of the second channels 321 are first receiving grooves 310, that is, the number of the second channels 321 can be greater than the number of components 200, or equal to the number of components 200. When the number of components 200 is equal to the number of the second channels 321, each second channel 321 contains a component 200. When the number of the second channels 321 is greater than the number of components 200, only some of the second channels 321 contain components 200. Specifically, in this embodiment, the second channels 321 are used to accommodate components 200 and to circulate adhesive, thereby making the structure of the first skeleton 300 simpler and the processing more convenient, thereby reducing the manufacturing cost of the first skeleton 300. At the same time, when the acquisition assembly of this embodiment is used in a battery pack, heat transfer is performed between the component 200 and the box 600 through the adhesive, so that the heat of the component 200 is directly transferred to the box 600, thereby improving the heat dissipation efficiency of the component 200.

[0062] Reference Figure 3 , Figure 3 for Figure 1, in some embodiments, the first skeleton 300 has a first surface 340, the first surface 340 includes a non-overlapping first connection area 341 and a second connection area 342, the flexible circuit board 100 is connected to the first connection area 341, the collection component also includes a second skeleton 400, the thickness of the second skeleton 400 is not less than the thickness of the flexible circuit board 100, and the second skeleton 400 is connected to the second connection area 342. Specifically, the second skeleton 400 is made of a material with strong mechanical strength, such as FR4 (a composite insulating material, mainly composed of epoxy resin, fiber filler and filler, etc., with strong mechanical strength and insulation performance), carbon fiber or advanced ceramics, and the thickness of the second skeleton 400 is not less than the thickness of the flexible circuit board 100. For example, the thickness of the second skeleton 400 is greater than the thickness of the flexible circuit board 100, so that the second skeleton 400 protrudes from the flexible circuit board 100. Therefore, when the collection component of this embodiment is used in a battery pack, the second skeleton 400 can be brought into contact with other components (such as the connection component 800 in the following embodiment) to avoid crushing the flexible circuit board 100. When the thickness of the second frame 400 is equal to the thickness of the flexible circuit board 100, the second frame 400 and the flexible circuit board 100 are in contact with other components, and the second frame 400 plays a certain supporting role to prevent the flexible circuit board 100 from being crushed, thereby improving the service life of the battery pack. Correspondingly, in some embodiments, the second frame 400 is provided with a fifth channel 410 at a position corresponding to the first channel 331, and the fifth channel 410 is connected to the first channel 331 for the adhesive to flow.

[0063] Reference Figure 1 , Figures 4 to 6 , Figure 4 for Figure 1 The enlarged schematic diagram of area B in the middle. Figure 5 is a schematic structural diagram of a battery pack according to a second embodiment of the present invention, Figure 6 for Figure 5 In the structural diagram of the first frame, cover and support member, in some embodiments, the first frame 300 has a second surface 350 away from the flexible circuit board 100, and the collection component also includes a support member 500. The support member 500 is a structure of any shape such as a cylindrical structure or a prismatic structure. The support member 500 is connected to the second surface 350 and protrudes from the second surface 350 along the first direction (the first direction is the direction from the flexible circuit board 100 to the first frame 300). When the collection component of this embodiment is used for a battery pack, the support member 500 abuts against the box 600 of the battery pack to Figure 6As shown in the example, the support member is against the cover body 620, so that there is enough space between the first frame 300 and the cover body 620 for filling the adhesive, so that the adhesive between the collection component and the cover body 620 is filled more fully, so that the first frame 300 and the cover body 620 are more firmly bonded. In addition, when the box body 600 is a metal structure, the size of the support member 500 can also be used to adjust the electrical safety distance between the connection component 800 and the cover body 620, without making the first frame 300 thicker or thinner as a whole, thereby improving material utilization.

[0064] On the basis of the above-mentioned embodiment, the support member 500 and the first skeleton 300 are an integrated structure. Exemplarily, the support member 500 and the first skeleton 300 are integrally processed by 3D printing technology, machining or injection molding. Therefore, during assembly, the assembly steps of the support member 500 and the first skeleton 300 can be omitted, thereby improving the assembly efficiency of the acquisition component. In addition, by being integrally processed, the consistency of the support member 500 can be improved, and each support member 500 can be made to contact the box 600 of the battery pack as much as possible. Therefore, when the box 600 is squeezed, the first skeleton 300 can be subjected to a more uniform force, thereby reducing the risk of damage to the first skeleton 300, so as to increase the service life of the battery pack.

[0065] In some embodiments, the support member 500 and the first frame 300 are split structures. Exemplarily, the support member 500 and the first frame 300 are connected to the first frame 300 by threaded connection, plug-in connection or clamping connection. Therefore, the support member 500 and the first frame 300 can be processed separately. Specifically, it can be understood that the first frame 300 plays a reinforcing role in the collection component, so the first frame 300 needs to have sufficient strength, and the role of the support member 500 is to ensure that there is a sufficient gap between the first frame 300 and the box 600 when filling the adhesive, and the strength requirement is relatively low. Therefore, the first frame 300 can be made of materials with strong mechanical strength, such as FR4 (a composite insulating material, mainly composed of epoxy resin, fiber filler and filler, etc., with strong mechanical strength and insulation performance), carbon fiber or advanced ceramics. The support member 500 can be made of relatively low-strength nylon, rubber, polyurethane and other lower-cost materials, thereby reducing the manufacturing cost of the collection component.

[0066] Reference Figure 5The battery pack of the second embodiment of the present invention comprises a box 600, a battery pack 700, an adhesive and a collection component of the first embodiment. The box 600 comprises a cover 620 and a shell 610, the cover 620 is connected to the shell 610, and together with the shell 610 forms a receiving cavity. Exemplarily, the shell 610 has a second receiving groove 611 and a notch 612 connected to the second receiving groove 611, the cover 620 is a flat plate structure, the cover 620 is connected to the shell 610, and covers the second notch 612, and the surface of the cover 620 facing the second receiving groove 611 is enclosed with the inner wall of the second receiving groove 611 to form a receiving cavity. Alternatively, in some embodiments, the cover 620 has a third receiving groove, and the inner wall of the third receiving groove is enclosed with the inner wall of the second receiving groove 611 to form a receiving cavity.

[0067] The battery pack 700 includes a plurality of arranged and distributed single cells 710, wherein the single cells 710 are, for example, square cells, cylindrical cells or blade cells, and the battery pack 700 is located in the receiving cavity. The acquisition component is located in the receiving cavity and is electrically connected to the single cells 710, and is used to collect parameter signals of the single cells 710, wherein the parameter signals include, for example, voltage, current, temperature or capacitance. The adhesive is filled in the receiving cavity to improve the strength of the battery pack. Among them, the flexible circuit board 100 in the acquisition component is connected to the first frame 300, and the component 200 is located in the first receiving groove 310 of the first frame 300. When the adhesive enters the first receiving groove 310 and wraps the component 200, the adhesive wrapping the component 200 is located in the first receiving groove 310, that is, the first colloid is clamped in the first frame 300 and forms a whole with the first frame 300, so that the component 200 located inside the first colloid forms a whole with the first frame 300. Therefore, the pulling force applied by the adhesive to the component 200 will be dispersed to the first frame 300 and converted into a pulling force between the first frame 300 and the flexible circuit board 100, thereby reducing the force between the component 200 and the flexible circuit board 100, reducing the risk of the component 200 detaching from the flexible circuit board 100, and thus improving the service life of the battery pack of this embodiment.

[0068] It should be noted that this embodiment adopts all the technical features of the acquisition component of the first aspect embodiment. Therefore, this embodiment has all the beneficial effects brought by the first aspect embodiment, which will not be repeated here.

[0069] Reference Figure 5 , Figure 7 and Figure 8 , Figure 7 for Figure 5 Schematic diagram of the structure of the connection components. Figure 8 for Figure 7 In some embodiments, the battery pack further includes a connection assembly 800 (eg, Figure 5 As shown in FIG. 1 , the connection assembly 800 includes a third frame 810 and a plurality of connection pieces 820, the connection pieces 820 are, for example, copper plates or aluminum bars, the connection pieces 820 are connected to the third frame 810, and are connected to the battery pack 700, so that the single cells 710 are electrically connected in series or in parallel. For example, taking a cylindrical battery as an example, the single cell 710 includes a shell 711 and a pole 720, wherein the shell 711 is connected to the internal anode as a negative electrode, and when adjacent single cells 710 are connected in series, one end of the connection piece 820 is connected to the pole 720 of one single cell 710, and the other end is connected to the shell 711 of the single cell 710. When adjacent batteries are connected in parallel, the two ends of the connection piece 820 are connected to the same electrodes of the two single cells 710, for example, both are connected to the shell 711 of the battery, or both are connected to the pole 720 of the battery. It should be noted that in the embodiment, the connection between the single cells 710 is not limited to a single series connection or parallel connection, and it can also be a partial series connection of the battery and a partial parallel connection of the battery. The third skeleton 810 has a fourth channel 811 (such as Figure 8 As shown in the figure, part of the adhesive is filled in the fourth channel 811. That is, when the adhesive is filled, the adhesive can flow through the fourth channel 811. For example, in some embodiments, the collection component is located between the cover body 620 and the connecting component 800, and the fourth channel 811 is connected to the first channel 331, the second channel 321 and the third channel 110 in the collection component, so that the adhesive is more fully filled in the accommodating cavity, thereby improving the strength of the battery pack of this embodiment.

[0070] Reference Fig. 9 and Fig.10 In some embodiments, the battery pack further comprises a plurality of stoppers 900, and the third frame 810 is connected to at least one stopper 900. The single battery 710 comprises a housing 711 and a pole 720, the housing 711 having a first side surface 7111 and a second side surface 7112, the pole 720 is connected to the first side surface 7111, the connecting assembly 800 is located on the first side surface 7111 of the single battery 710, and the stopper 900 is connected to the third frame 810 (such as Fig. 9 ), and abuts against the second side surface 7112 (as shown Fig.10 As shown), the relative position of the connecting piece 820 and the single battery 710 is defined.

[0071] Specifically, it is understandable that in order to ensure that the single battery 710 has a high energy density, the size of the pole 720 protruding from the shell 711 is small. Therefore, when the third frame 810 is set on the first side 7111, the space between the third frame 810 and the first side 7111 is small. If the pole 720 is used as the positioning structure on the single battery 710, the limiter 900 needs to be located between the first side 7111 and the third frame 810, which not only increases the difficulty of installing the limiter 900, but also increases the difficulty of processing the limiter 900. Specifically, due to the narrow space between the third frame 810 and the first side 7111, it is difficult to observe the positioning during installation and is not conducive to assembly. If the thickness of the limiter 900 is too large, the third frame 810 will be lifted up, resulting in the separation of the connecting piece 820 from the single battery 710. If the thickness of the limiter 900 is too small, it is easy to cause positioning failure. This embodiment can effectively improve this problem. The stopper 900 of this embodiment abuts against the second side surface 7112, so that the installation of the stopper 900 and the installation of the third frame 810 in the first direction do not interfere with each other. Therefore, the size of the stopper 900 is not limited by the distance between the third frame 810 and the first side surface 7111, thereby reducing the processing requirements of the stopper 900 and reducing the manufacturing cost.

[0072] Reference Fig.10 In some embodiments, the single battery 710 is a cylindrical battery, the second side surface 7112 is a cylindrical surface, and the limiting member 900 has an arc-shaped limiting surface 910 adapted to the second side surface 7112, and the limiting surface 910 abuts against the second side surface 7112. Specifically, it can be understood that the limiting surface 910 is a concave surface, which can limit the displacement of the third frame 810 and the battery pack 700 in multiple directions, thereby realizing the positioning of the third frame 810 and the battery pack 700 in multiple directions, so that the structure of the battery pack of this embodiment is simpler and the manufacturing cost is reduced.

[0073] Reference Figure 1 and Fig. 9 In some embodiments, the stopper 900 includes, for example, a connecting portion 920, and the third frame 810 has a first stopper hole 812, and the connecting portion 920 is inserted into the first stopper hole 812 (eg, Fig. 9 ), and when the connecting portion 920 is a cylindrical structure, the stopper 900 includes at least two connecting portions 920, thereby preventing the stopper 900 from rotating relative to the third frame 810, so as to improve the position accuracy between the stopper 900 and the third frame 810. Further, in some embodiments, the collection component is located on the side of the connecting component 800 away from the battery pack 700, the third frame 810 has a first stopper hole 812 passing through, and the first frame 300 has a second stopper hole 360 ​​(as shown in FIG. Figure 1As shown in FIG. 1 , the connection part 920 is inserted into the first limiting hole 812 and plugged into the second limiting hole 360 ​​to realize the positioning of the collection component. Therefore, in this embodiment, one limiting member 900 is used to realize the positioning between the connection component 800 and the collection component and the battery pack 700, thereby making the battery pack structure of this embodiment simpler and reducing the manufacturing cost.

[0074] The vehicle of the third aspect of the present invention can be a private car, such as a sedan, SUV, MPV or pickup truck. The vehicle can also be an operating vehicle, such as a van, a bus, a small truck or a large trailer. The vehicle can be a hybrid vehicle or a pure electric vehicle. The vehicle of this embodiment includes a battery pack of the second aspect. The flexible circuit board 100 in the battery pack is connected to the first skeleton 300, and the component 200 is located in the first receiving groove 310 of the first skeleton 300. Therefore, when the adhesive enters the first receiving groove 310 and wraps the component 200, the adhesive wrapping the component 200 is located in the first receiving groove 310, that is, the first colloid is connected to the first skeleton 300 and forms a whole with the first skeleton 300, so that the component 200 located inside the first colloid forms a whole with the first skeleton 300. Therefore, the pulling force applied by the adhesive to the component 200 will be dispersed to the first frame 300 and converted into a pulling force between the first frame 300 and the flexible circuit board 100, thereby reducing the force between the component 200 and the flexible circuit board 100, and reducing the risk of the component 200 detaching from the flexible circuit board 100, so as to increase the service life of the battery pack of this embodiment, thereby reducing the maintenance cost of the vehicle.

[0075] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. Collection component, characterized in that, include: Flexible circuit boards; Components connected to the flexible circuit board; The first frame has a first receiving groove, the flexible circuit board is connected to the first frame, and the components are located in the first receiving groove.

2. The collection component according to claim 1, characterized in that: Along the thickness direction of the first frame, the size of the first accommodating groove is larger than the size of the component.

3. The collection component according to claim 1, characterized in that: The first frame includes a first frame part and a second frame part which do not overlap each other, the flexible circuit board is connected to the first frame part, and the second frame part has a first channel which penetrates along the thickness direction thereof.

4. The collection assembly according to claim 3, characterized in that: The first skeleton part has a second channel penetrating along the thickness direction thereof, and the flexible circuit board has a third channel penetrating along the thickness direction thereof, and the third channel is connected to the second channel.

5. The collection assembly according to claim 4, characterized in that: The first skeleton portion has a plurality of the second channels, and at least part of the second channels are the first accommodating grooves.

6. The collection component according to claim 1, characterized in that: The first skeleton has a first surface, the first surface includes a first connection area and a second connection area that do not overlap, the flexible circuit board is connected to the first connection area, the acquisition component also includes a second skeleton, the thickness of the second skeleton is not less than the thickness of the flexible circuit board, and the second skeleton is connected to the second connection area.

7. The collection assembly according to claim 1, characterized in that: The first frame has a second surface facing away from the flexible circuit board. The acquisition component also includes a support member connected to the second surface and protruding from the second surface along a first direction. The first direction is the direction from the flexible circuit board to the first frame.

8. A battery pack, characterized in that: include: The box body comprises a cover body and a shell body, wherein the cover body is connected to the shell body and forms a containing cavity together with the shell body; A battery pack, comprising a plurality of arranged and distributed single cells, wherein the battery pack is located in the accommodation cavity; The collection assembly according to any one of claims 1 to 7, located in the accommodating cavity and electrically connected to the single battery; Adhesive glue is filled in the accommodating cavity.

9. The battery pack according to claim 8, characterized in that: The battery pack also includes a connecting component, which includes a third frame and a plurality of connecting plates. The connecting plates are connected to the third frame and to the battery pack so that the single cells are electrically connected in series or in parallel. The third frame has a fourth channel that penetrates along its thickness direction, and part of the adhesive is filled in the fourth channel.

10. A vehicle, characterized in that Comprising the battery pack described in claim 8 or 9.

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