CN209169209U - Battery component, battery modules and unmanned plane - Google Patents

Abstract

The utility model provides a battery assembly, a battery module and an unmanned aerial vehicle. The battery assembly comprises: an electric core, one end of the electric core is provided with a tab; A first sealing layer is provided between the end of the core and the connecting circuit board and/or on the surface of the connecting circuit board. The technical solution provided by the present application can solve the problems of poor protection performance of the battery module in the prior art, and connection failures such as short circuit easily occur in the internal battery circuit.

Description

Battery packs, battery modules and drones

technical field

The utility model relates to the technical field of batteries, in particular to a battery assembly, a battery module and an unmanned aerial vehicle.

Background technique

The power battery module consists of several single cells in series or in parallel in different ways. In recent years, it has been widely used in various fields, such as electric vehicles, drones and other industries.

The existing battery module has poor protection performance, and the internal battery circuit is prone to connection failure problems such as short circuit.

Utility model content

The utility model provides a battery assembly, a battery module and an unmanned aerial vehicle, so as to solve the problem of poor protection performance of the battery module in the prior art.

According to a first aspect of the present invention, a battery assembly is provided, the battery assembly includes: a battery cell, one end of the battery core has a tab; a connecting circuit board, the battery cell is electrically connected to the connecting circuit board through the tab, A first sealing layer is provided between the end portion and the connection circuit board and on the surface of the connection circuit board away from the cell.

Further, the battery assembly further includes: an installation part, which is arranged at the end of the battery cell with the tabs, and the connection circuit board is arranged in the installation part.

Further, the installation part includes: a circuit board casing, a partition part is arranged on the inner wall of the circuit board casing, and the partition part separates the circuit board casing into a first accommodating layer and a second accommodating layer, and the second accommodating layer is close to the battery core In the arrangement, the connection circuit board is located in the first accommodating layer, the connecting circuit board is provided with a communication hole, and the first sealing layer is located in the first accommodating layer and the second accommodating layer.

Further, a partition is provided on the inner wall of the circuit board housing. The partition divides the circuit board housing into a first accommodating layer and a second accommodating layer. The first sealing layer is located within the first containing layer and the second containing layer.

Further, the partition part includes a boss, and the boss is annularly arranged on the inner wall of the circuit board housing.

Further, the battery assembly includes a plurality of battery cells arranged at intervals, the battery assembly further includes a battery casing, the battery casing is wrapped on the outer side of the plurality of electric cores, the battery casing is provided with a first heat dissipation hole, and the mounting portion is sleeved on the battery casing. outside of the battery case.

Further, the battery case is provided with a plurality of first heat dissipation holes, and the plurality of first heat dissipation holes are arranged in a one-to-one correspondence with the gaps between the plurality of cells.

According to a second aspect of the present invention, a battery module is provided, the battery module includes: a casing; a battery assembly, which is arranged in the casing; the battery assembly is the battery assembly provided above; a control module is arranged in the casing, and the battery The assembly is electrically connected to the control module.

Further, the control module includes: a control housing, the control housing is provided with a second wire hole; a control circuit board, the control circuit board is arranged in the control housing, and the control circuit board is connected to the battery assembly through the second wire hole The circuit board is electrically connected.

Further, the bottom of the control casing is provided with an extension post, the extension post extends toward the battery assembly, and the extension post is provided with a second wire hole.

According to a third aspect of the present invention, an unmanned aerial vehicle is provided, and the unmanned aerial vehicle includes the battery assembly provided above.

By applying the technical solution of the present utility model, the first sealing layer is arranged between the end of the battery and the connecting circuit board and the surface of the connecting circuit board away from the battery core, so that impurities or water can be prevented from contacting the circuit, and the stability of the circuit can be guaranteed. work to extend the life of the circuit. With the above structure, the sealing performance and the protective performance of the battery assembly can be improved.

Description of drawings

The accompanying drawings forming a part of the present application are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

1 shows a cross-sectional view of a battery assembly provided by the present invention;

FIG. 2 shows a partial enlarged view of the battery assembly B in FIG. 1;

FIG. 3 shows a schematic structural diagram of the circuit board housing in FIG. 1;

FIG. 4 shows a schematic structural diagram of the battery assembly provided by the present invention;

5 shows a schematic structural diagram of a battery module provided by the present invention;

6 shows an exploded view of the control module in the battery module provided by the present invention;

Fig. 7 shows the structural schematic diagram of the bottom plate provided by the present utility model;

FIG. 8 shows the assembly diagram of the control module in the battery module provided by the present invention.

Wherein, the above-mentioned drawings include the following reference signs:

10, outer shell; 20, battery assembly; 21, battery cell; 211, tab; 22, connecting circuit board; 22a, communication hole; 23, first sealing layer; 24, circuit board shell; 241, partition part; 25 , battery housing; 251, first heat dissipation hole; 30, control module; 31, control housing; 311, second wire hole; 312, cover plate; 313, bottom plate; 314, avoidance hole; 32, control circuit board .

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application or uses in any way. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in FIGS. 1 to 4 , an embodiment of the present invention provides a battery assembly, which includes: a battery cell 21 and a connecting circuit board 22 . One end of the cell 21 has a tab 211 , and the cell 21 is electrically connected to the connection circuit board 22 through the tab 211 . In order to improve the protection performance of the battery assembly, a first sealing layer 23 may be provided between the end of the battery cell 21 and the connection circuit board 22 and on the surface of the connection circuit board 22 away from the battery cell. In order to prevent impurities or water from damaging the circuit through the first sealing layer 23, the sealing performance and protection performance of the battery assembly are improved.

The battery assembly provided in this embodiment is applied, which specifically includes a battery cell 21 and a connecting circuit board 22 . A first sealing layer 23 is provided between the end of the cell 21 and the connection circuit board 22 and the surface of the connection circuit board 22 away from the cell. By arranging the first sealing layer 23, impurities or water can be prevented from contacting the circuit, the stable operation of the circuit is ensured, the service life of the circuit is prolonged, and the sealing performance and protection performance of the battery assembly are improved. Specifically, the first sealing layer 23 is a sealing glue, which can be wrapped on the connecting circuit board 22 by a glue filling process, which is simple in operation and low in manufacturing cost.

The battery assembly in this embodiment further includes a mounting portion, the mounting portion is provided at one end of the battery cell 21 having the tab 211 , and the connecting circuit board 22 is provided in the mounting portion. The mounting portion may be an independent component, or a boss may be processed on other components, such as a battery case, to mount the connecting circuit board 22 .

Specifically, the mounting portion includes a circuit board housing 24. The combination of the circuit board housing 24 and the first sealing layer 23 can protect the battery cell 21 very well. The connection between the ear 211 and the connecting circuit board 22 fails due to collision. In addition, by arranging the circuit board housing 24 , it is possible to prevent the glue from overflowing when the glue is poured, so that the glue is filled in the circuit board housing 24 .

Specifically, a partition portion 241 is provided on the inner wall of the circuit board housing 24. The partition portion 241 separates the circuit board housing 24 into a first accommodating layer and a second accommodating layer. The board 22 is located in the first accommodating layer, and the first sealing layer 23 is located in the first accommodating layer and the second accommodating layer. The connecting circuit board 22 can be enclosed by the first sealing layer 23 and the circuit board housing 24 . Wherein, the first sealing layer 23 is disposed in the circuit board housing 24 by a glue pouring process. Specifically, the connecting circuit board 22 is provided with a communication hole 22a. In order to facilitate glue filling, the connecting circuit board 22 is provided with a plurality of communication holes 22a, so that when glue is poured from the top of the connecting circuit board housing 24, the glue can not only flow into The first accommodating layer can flow into the second accommodating layer from the opening of the connection circuit board 22 . By providing the first sealing layer 23, a good sealing effect can be achieved on the circuit board housing 24 and the battery core 21, preventing them from contacting with water or other impurities, affecting the normal operation of the battery assembly, and improving the safety performance of the device structure.

Wherein, the partition portion 241 includes a boss, and the boss is annularly disposed on the inner wall of the circuit board housing 24 . The connecting circuit board 22 is placed on the boss to facilitate the fixing of the connecting circuit board 22 . The boss can be integrally formed with the circuit board housing 24, which is convenient for production and processing.

As shown in FIG. 4 , the battery assembly in this embodiment includes a plurality of battery cells 21 arranged at intervals, and the battery assembly further includes a battery case 25 , which is wrapped around the outside of the plurality of battery cells 21 , and the battery case 25 A first heat dissipation hole 251 is provided thereon. The advantage of this arrangement is that the heat generated by the battery cells 21 can be dissipated through the first heat dissipation holes 251 , which is conducive to the heat dissipation of the battery components, improves the heat dissipation efficiency, ensures the normal operation of the battery cells 21 , and prolongs the service life of the battery cells 21 . Specifically, in order to further improve the heat dissipation efficiency, the battery case 25 is made of metal material. In this embodiment, the battery case 25 is made of aluminum material. The circuit board case 24 is sleeved on the outside of the battery case 25 , wherein the circuit board case 24 is made of a deformable material such as plastic, so that the connection tightness between the circuit board case 24 and the battery case 25 can be improved.

Specifically, the battery case 25 is provided with a plurality of first heat dissipation holes 251 , and the plurality of first heat dissipation holes 251 are provided in a one-to-one correspondence with the gaps between the plurality of cells 21 . This arrangement facilitates the heat generated by the battery cells 21 to be quickly discharged directly through the first heat dissipation holes 251 , avoids heat accumulation in the battery case 25 , and further improves the heat dissipation efficiency of the battery assembly.

Wherein, a plurality of accommodating grooves may be provided in the battery casing 25 to space the cells 21 through the plurality of accommodating grooves, and spacers may also be provided between two adjacent cells 21 to separate the cells 21 .

As shown in FIG. 5 to FIG. 8 , another embodiment of the present invention provides a battery module. The battery module includes a casing 10 , a battery assembly 20 and a control module 30 . Wherein, the battery assembly 20 and the control module 30 are both disposed in the casing 10, and the battery assembly 20 is the battery assembly mentioned in the above embodiment. Wherein, the control module 30 is electrically connected with the battery assembly 20 . The battery assembly 20 and the control module 30 are both disposed in the casing 10 , and the above-mentioned device structure improves the integration of the battery module and facilitates installation.

The control module 30 in this embodiment includes: a control housing 31 and a control circuit board 32 . The control housing 31 is provided with a second wire hole 311 . The control circuit board 32 is disposed in the control housing 31 , and the control circuit board 32 is electrically connected to the connection circuit board 22 of the battery assembly through the second wire hole 311 . The control module 30 is electrically connected to the battery assembly 20 through the second wire hole 311, which simplifies the device structure, avoids drilling holes on the side of the casing 10, and ensures the sealing of the battery module. In addition, in this embodiment, the control circuit board 32 and the battery assembly 20 are separated by the control case 31, so that the internal structure is unitized, and the installation of each component is convenient, and the control case 31 and the battery case can be separated by the control case 31 and the battery case. 25 respectively protect the control circuit board and battery, which improves the reliability of the device.

Specifically, the bottom of the control housing 31 is provided with an extension post, the extension post extends toward the battery assembly 20 , and the extension post is provided with a second wire hole 311 . Wherein, the extension column can be integrally formed with the control housing 31, which can facilitate the production and manufacture, and the connection line can be protected by the extension column.

Specifically, the control housing 31 includes: a cover plate 312 and a bottom plate 313 . The cover plate 312 is covered on the bottom plate 313, the cover plate 312 and the bottom plate 313 cooperate to form a placement cavity, and the control circuit board 32 is arranged in the placement cavity. The control module 30 is placed in the placement cavity formed by the cover plate 312 and the bottom plate 313, so as to form a separate protection for the control module 30, avoiding the situation that the battery is too bulky and heavy due to the overall protection. The cover plate 312 and the bottom plate 313 are both provided with fastener installation holes, and the cover plate 312 and the bottom plate 313 are installed together by using fasteners.

In this embodiment, the control circuit board 32 is provided with buttons, the cover plate 312 is provided with avoidance holes 314 , and the buttons are correspondingly arranged in the avoidance holes 314 . By arranging the button in the avoidance hole 314, it can be positioned during installation, which plays a foolproof role. Specifically, a corresponding avoidance hole is also provided on the top of the casing, so that the button is located on the outside of the casing 10, which is convenient for the staff to operate.

Yet another embodiment of the present invention provides an unmanned aerial vehicle, wherein the unmanned aerial vehicle includes the battery assembly mentioned in the above embodiments.

With the device provided in this embodiment, by disposing the first sealing layer 23, the sealing performance and protection performance of the battery assembly can be improved. In addition, the first sealing layer 23 is a sealing glue, which can be wrapped on the connecting circuit board 22 by a glue pouring process, which is simple in operation and low in manufacturing cost.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise. Meanwhile, it should be understood that, for the convenience of description, the dimensions of various parts shown in the accompanying drawings are not drawn in an actual proportional relationship. Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the authorized description. In all examples shown and discussed herein, any specific value should be construed as illustrative only and not as limiting. Accordingly, other examples of exemplary embodiments may have different values. It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further discussion in subsequent figures.

In the description of the present invention, it should be understood that orientation words such as "front, rear, top, bottom, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. The orientation or positional relationship is usually based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and these orientations do not indicate and imply the indicated device unless otherwise stated. Or elements must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be construed as a limitation on the protection scope of the present invention; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

For ease of description, spatially relative terms such as "on", "over", "on the surface", "above", etc., may be used herein to describe what is shown in the figures. The spatial positional relationship of one device or feature shown to other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or features would then be oriented "below" or "over" the other devices or features under other devices or constructions". Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood To limit the scope of protection of the present invention.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. A battery assembly, characterized in that the battery assembly comprises: an electric core (21), one end of the electric core (21) is provided with a tab (211); A connection circuit board (22), the battery core (21) is electrically connected to the connection circuit board (22) through the tabs (211), and the end of the battery core (21) is connected to the connection circuit board A first sealing layer (23) is provided between (22) and on the surface of the connecting circuit board (22) away from the battery core (21). 2. The battery assembly according to claim 1, wherein the battery assembly further comprises: The installation part is arranged at one end of the battery cell (21) with the tab (211), and the connection circuit board (22) is arranged in the installation part. 3. The battery assembly of claim 2, wherein the mounting portion comprises: A circuit board housing (24), a partition (241) is provided on the inner wall of the circuit board housing (24), and the partition (241) partitions the circuit board housing (24) into a first accommodating part layer and a second accommodating layer, the second accommodating layer is arranged close to the battery core (21), the connecting circuit board (22) is located in the first accommodating layer, and the connecting circuit board (22) is arranged on the The first sealing layer (23) having a communication hole (22a) is located in the first accommodating layer and the second accommodating layer. 4. The battery assembly according to claim 3, characterized in that, the partition portion (241) comprises a boss, and the boss is annularly disposed on the inner wall of the circuit board housing (24). 5. The battery assembly according to claim 2, characterized in that, the battery assembly comprises a plurality of the battery cells (21) arranged at intervals, the battery assembly further comprises a battery casing (25), and the battery The casing (25) is wrapped around the outer sides of the plurality of battery cells (21), the battery casing (25) is provided with a first heat dissipation hole (251), and the mounting portion is sleeved on the battery casing (25) outside. 6. The battery assembly according to claim 5, wherein a plurality of the first heat dissipation holes (251) are provided on the battery case (25), and a plurality of the first heat dissipation holes (251) They are arranged in a one-to-one correspondence with the gaps between the plurality of the battery cells (21). 7. A battery module, wherein the battery module comprises: housing (10); A battery assembly (20), provided in the casing (10), the battery assembly (20) being the battery assembly according to any one of claims 1 to 6; A control module (30) is arranged in the casing (10), and the battery assembly (20) is electrically connected to the control module (30). 8. The battery module according to claim 7, wherein the control module (30) comprises: a control housing (31), the control housing (31) is provided with a second wire hole (311); A control circuit board (32), the control circuit board (32) is arranged in the control housing (31), and the control circuit board (32) communicates with the battery through the second wire hole (311) The connecting circuit boards (22) of the components are electrically connected. 9 . The battery module according to claim 8 , wherein an extension column is provided at the bottom of the control housing ( 31 ), the extension column extends toward the battery assembly ( 20 ), and the extension column The second wire-passing hole (311) is provided thereon. 10 . An unmanned aerial vehicle, characterized in that, the unmanned aerial vehicle comprises the battery assembly of any one of claims 1 to 6 .