CN210092201U - Battery modules and electronic equipment - Google Patents

Abstract

The utility model provides a battery module and electronic equipment. This battery module includes: a first cell and a second cell; the first electrode lug and the second electrode lug are electrically connected to the first battery cell and the second battery cell respectively; the protection circuit board comprises a first tab connecting end, a second tab connecting end, a conductive output terminal, a first protection circuit board and a second protection circuit board, wherein the first tab connecting end is arranged on the first protection circuit board, the second tab connecting end and the conductive output terminal are arranged on the second protection circuit board, the first tab connecting end and the second tab connecting end are connected to a first tab and a second tab, the conductive output terminal is used for connecting a mainboard of electronic equipment, the first protection circuit board comprises a first connecting end, the second protection circuit board comprises a second connecting end, and the first connecting end is connected to the second connecting end. The utility model provides a process that its protection circuit board and first electric core, second electricity core are connected is more simplified, and moreover, protection circuit board's makeup space utilization is higher.

Description

Battery modules and electronic equipment

technical field

The utility model relates to the field of printed circuit design, in particular, the utility model relates to a battery module and an electronic device.

Background technique

At this stage, with the advent of the 5G era and the increase in mobile phone applications, users have higher and higher requirements for the capacity of mobile phone batteries. Therefore, it is one of the important methods to increase the capacity of the battery by fully utilizing the space. The emergence of the L-shaped dual-cell battery breaks the rectangular design of the traditional battery, and can make full use of its shape to gain more space, thereby increasing the battery capacity.

At present, the core technology for connecting two cells of an L-type dual-cell battery on the market lies in an F-type protection circuit (PCB) board, the specific structure of which can be referred to FIG. 1 . However, there are still two problems in the design of the F-type PCB board: first, the process is more complicated than the existing single-cell battery. For details, please refer to FIG. 2. Since the first cell 200 and the bent F-type PCB board After connecting them together first, and then connecting the bent F-type PCB board to the second cell 300, the bending of the nickel sheet, the bending of the tabs and other processes will be affected by the first cell 200, and cannot be It is as simple as a single-cell battery; second, the panel space utilization rate of the F-type PCB board is low, please refer to Figure 3, a panel with an area of 158mm×83mm can only be arranged 8 (PCS), resulting in the F-type PCB board. The cost of the PCB board is higher.

Utility model content

The present utility model is completed based on the following findings of the inventor:

The inventor of the present utility model found in the research process that the existing F-type PCB board and two battery cores are assembled in a complicated process, and the F-type PCB board has low panel space utilization rate, resulting in high cost. Therefore, in order to solve the above problems, the inventor proposed two new types of PCB board designs, one is a combination of L-type PCB board and T-type PCB board, and the other is Z-type PCB board. The core assembly process can be simpler, or the panel space utilization can be higher and the cost of the PCB board can be lower.

In the first aspect of the present invention, the present invention provides a battery module.

According to an embodiment of the present invention, the battery module includes: a first cell and a second cell; a first tab and a second tab, the first tab and the second tab are respectively electrically connected to the first battery core and the second battery core, and one ends of the first electrode tab and the second electrode lug are respectively disposed outside the first battery core and the second battery core; protection circuit board, the protection circuit board further includes a first protection circuit board and a second protection circuit board, the first protection circuit board includes a first connection end, the second protection circuit board includes a second connection end, so the first connection end is connected to the second connection end, as well as the first tab connection end, the second tab connection end and the conductive output terminal, the first tab connection end is arranged on the first protection circuit board, The second tab connection end and the conductive output terminal are arranged on the second protection circuit board, and the first tab connection end and the second tab connection end are respectively connected to the first tab and the second tab, the conductive output terminal is used to connect to the main board of the electronic device.

The inventors have found through research that the battery module of the embodiment of the present invention has a simpler connection process between the protection circuit board and the first battery cell and the second battery core, and the panel space utilization rate of the protection circuit board is higher. Therefore, the cost of the battery module can be lower.

In addition, the battery module according to the above-mentioned embodiment of the present invention may also have the following additional technical features:

According to the embodiment of the present invention, the first protection circuit board is L-shaped, and the second protection circuit board is T-shaped.

According to an embodiment of the present invention, the first connecting end is connected to the second connecting end through a snap.

In the second aspect of the present invention, the present invention provides a battery module.

According to an embodiment of the present invention, the battery module includes: a first cell and a second cell; a first tab and a second tab, the first tab and the second tab are respectively electrically connected to the first battery core and the second battery core, and one ends of the first electrode tab and the second electrode lug are respectively disposed outside the first battery core and the second battery core; a protection circuit board, the protection circuit board includes a first tab connection end, a second tab connection end and a conductive output terminal, the first tab connection end and the second tab connection end are respectively connected to the The first tab and the second tab, the conductive output terminal is used to connect to the main board of the electronic device, and the protection circuit board is Z-shaped.

The inventors have found through research that the battery module of the embodiment of the present invention has a simpler connection process between the protection circuit board and the first battery cell and the second battery core, and the panel space utilization rate of the protection circuit board is higher. Therefore, the cost of the battery module can be lower.

In addition, the battery module according to the above-mentioned embodiment of the present invention may also have the following additional technical features:

According to an embodiment of the present invention, the first tab is welded to the first tab connection end, and the second tab is welded to the second tab connection end.

In the third aspect of the present invention, the present invention proposes an electronic device.

According to an embodiment of the present invention, the electronic device includes the above-mentioned core battery module.

The inventor found through research that the mobile device according to the embodiment of the present invention has lower assembly cost and lower production cost of the battery module, so that the electronic device has higher electric capacity, smaller volume and lower cost, thereby making the electronic device more efficient. The market competitiveness of the electronic device is higher. Those skilled in the art can understand that the features and advantages described above with respect to the battery module are still applicable to the electronic device, and details are not repeated here.

Additional aspects and advantages of the invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or learned by practice of the invention.

Description of drawings

The above-mentioned aspects of the present utility model are explained with reference to the following drawings to the description of the embodiments, wherein:

Fig. 1 is the structural representation before and after the bending of the F-type PCB board of the prior art;

Fig. 2 is the schematic diagram of prior art F-type PCB board and two electric cores assembled;

Fig. 3 is the imposition schematic diagram of the F-type PCB board of the prior art;

4 is a schematic structural diagram of two battery modules according to an embodiment of the present invention;

5 is a schematic structural diagram of a battery module according to an embodiment of the present invention;

6 is a schematic structural diagram of a PCB board before and after bending according to an embodiment of the present invention;

Fig. 7 is the imposition schematic diagram of the PCB board of one embodiment of the present invention;

8 is a schematic structural diagram of another battery module according to an embodiment of the present invention;

9 is a schematic structural diagram of a PCB board before and after bending according to another embodiment of the present invention;

10 is a schematic diagram of the imposition of a PCB board according to another embodiment of the present invention.

reference number

100 Protection circuit board

101 The first tab connection

102 Second tab connection terminal

103 Conductive output terminal

110 First protection circuit board

111 First connection end

112 First connector

120 Second protection circuit board

121 Second connection

122 Second connector

123 Third connector

121 Second connection

131 Fourth connector

200 first cell

300 second cell

Detailed ways

The embodiments of the present invention will be described in detail below, and those skilled in the art will understand that the following embodiments are intended to explain the present invention and should not be regarded as a limitation of the present invention. Unless otherwise specified, specific techniques or conditions are not explicitly described in the following examples, and those skilled in the art can follow common techniques or conditions in the art or follow product specifications.

In one aspect of the present invention, the present invention provides a battery module.

According to an embodiment of the present invention, referring to FIG. 5 and FIG. 6 , the battery module includes a protection circuit board, a first cell 200 , a second cell 300 , a first tab and a second tab; the first tab and The second tabs are electrically connected to the first cell 200 and the second cell 300, respectively, and one ends of the first tab and the second tab are respectively disposed outside the first cell 200 and the second cell 300; and the protection The circuit board includes a first tab connection end 101 , a second tab connection end 102 , a conductive output terminal 103 , a first protection circuit board 110 and a second protection circuit board 120 ; the first tab connection end 101 is arranged on the first protection The circuit board 110, the second tab connection end 102 and the conductive output terminal 103 are disposed on the second protection circuit board 120, the first tab connection end 101 is connected to the first tab, and the second tab connection end 102 is connected to the second tab The tabs, the conductive output terminals 103 are used to connect to the main board of the electronic device; with reference to FIG. 6 , the first protection circuit board 110 includes a first connection end 111 , and the second protection circuit board 120 includes a second connection end 121 . The first connection The terminal 111 is connected to the second connection terminal 121 . In this way, firstly, after the first protection circuit board 110 is bent, and the first tab connecting end 101 is connected to the first cell 200 through the first tab, and at the same time, after the second protection circuit board 120 is bent, the second electrode The ear connection end 102 is connected to the second cell 300 through the second tab, and then the first connection end 111 and the second connection end 121 are connected to form an electrical connection between the first protection circuit board 110 and the second protection circuit board 120 .

In some specific examples, referring to FIG. 6 , the first protection circuit board 110 may be L-shaped, that is, the first tab connection end 101 is vertically disposed on the first connection end 111 , and the second protection circuit board 120 may be T-shaped, That is, the second tab connecting end 102 is vertically disposed on the second connecting end 121 and the conductive output terminal 103 respectively. In this way, the folding angle of 90° facilitates the bending process of the first protection circuit board 110 and the second protection circuit board 120 .

In some specific examples, the first connection end 111 may be connected to the second connection end 121 through a snap. For example, referring to FIG. 6 , the back of the first connection end 111 may be provided with a first connector 112 , and the second connection end 121 A second connector 122 may be provided on the front side of the . In this way, the first connector 112 and the second connector 122 can make the first connecting end 111 after bending and the second connecting end 121 after bending, so as to connect the first protection circuit board 110 and the second protection circuit board 120 forms an electrical connection. In addition, a third connector 123 may also be disposed on the front surface of the conductive output terminal 103 to transmit the electrical control signal on the motherboard to the second cell 300 and the first cell 200 through copper wires. It should be noted that the "front side" in this article specifically refers to the side on which electronic components are arranged, and the "back side" specifically refers to the side opposite to the front side.

Specifically, referring to FIG. 6 , the first protection circuit board 110 and the second protection circuit board 120 are respectively bent and formed, and then the first tab connection ends 101 of the bent first protection circuit board 110 are connected to each other. The first tab is connected, and the second tab connecting end 102 of the bent second protection circuit board 120 is connected to the second tab. In this way, one sub-board and one 5, the first connector 112 of the first protection circuit board 110 is connected to the second connector 122 of the second protection circuit board 120 by snaps, so as to form an integrated PCB board 100 and connect the first One battery cell 200 is electrically connected to the second battery cell 300 , the assembly process is simple, and it has the potential for mass industrial production.

The space utilization rate of the PCB board composed of the first protection circuit board 110 and the second protection circuit board 120 designed in this way is also relatively high. For details, please refer to a panel design in FIG. 7 . In this way, the same area is 158mm×83mm Compared with the F-type PCB board that can only arrange 8 pieces, 20 first protection circuit boards 110 or 12 second protection circuit boards 120 can be arranged, so the space utilization rate of the PCB board 100 is better. high, so that the cost of the PCB board can be lower.

To sum up, in the battery module of the embodiment of the present invention, the protection circuit board includes a first protection circuit board and a second protection circuit board, wherein the bent first protection circuit board can be connected to the first protection circuit board first. The battery core, connecting the bent second protection circuit board to the second battery core, and then connecting the first protection circuit board to the second protection circuit board can avoid the process difficulty caused by a whole protection circuit board, and is relatively Lower cost for F-type PCB strips.

In another aspect of the present invention, the present invention also provides a battery module.

According to some embodiments of the present invention, referring to FIG. 8 , the battery module includes a protection circuit board 100 , a first cell 200 , a second cell 300 , a first tab and a second tab; the first tab and the third tab The diode tabs are electrically connected to the first cell 200 and the second cell 300, respectively, and one ends of the first tab and the second tab are respectively disposed outside the first cell 200 and the second cell 300; and the protection circuit The board 100 includes a first tab connection end 101, a second tab connection end 102, a conductive output terminal 103, a first protection circuit board 110 and a second protection circuit board 120; the first tab connection end 101 is connected to the first The tab, the second tab connecting end 102 is connected to the second tab, the conductive output terminal 103 is used to connect to the main board of the electronic device, and the protection circuit board 100 is Z-shaped. In this way, the first tab connecting end 101 of the bent protection circuit board 100 can be connected to the first tab, the second tab connecting end 102 can be connected to the second tab, and the conductive output terminal 103 can be used to connect to the electronic device. motherboard. Specifically, the front surface of the conductive output terminal 103 may be provided with a fourth connector 131, and the fourth connector 131 is used to connect to the motherboard. In this way, the fourth connector 131 disposed on the conductive output terminal 103 can transmit the electrical control signal on the main board to the second cell 300 and the first cell 200 through copper wires.

In some embodiments of the present invention, referring to FIG. 9 , the conductive output terminal 103 and the first tab connecting end 101 may be arranged vertically, and the first tab connecting end 101 and the second tab connecting end 102 may be set vertically. In this way, the bending angle of 90° facilitates the bending process of the Z-shaped protection circuit board 100 .

Specifically, referring to FIG. 9 , first bend the Z-shaped PCB board to form, and then refer to FIG. 8 , connect the first tab connection end 101 of the Z-shaped protection circuit board 100 to the first cell 200 , and then connect the second electrode The ear connection end 102 is connected to the second battery cell 300 , so the process of assembling the two battery cells in sequence is relatively simple. In addition, the space utilization rate of the Z-type PCB board is higher. For details, please refer to a panel design in Figure 10. The same area of 158mm × 83mm is compared with the F-type PCB board that can only arrange 8 pieces. , 11 Z-type PCB boards can be arranged, so the panel space utilization rate of the Z-type PCB board is higher, so that the cost of the PCB board can be lower.

In some embodiments of the present invention, the first tab and the connecting end of the first tab can be electrically connected by welding, and the second tab and the connecting end of the second tab can be electrically connected by welding, which is convenient Assemble the two-cell battery module.

To sum up, according to the embodiments of the present utility model, the present utility model proposes a battery module in which the Z-shaped protection circuit board is connected with the first cell and the second cell in a simpler process, and the protection The panel space utilization rate of the circuit board is higher, so that the cost of the battery module can be lower.

In another aspect of the present invention, the present invention also provides an electronic device. According to an embodiment of the present invention, the electronic device includes the above-mentioned battery module.

According to the embodiment of the present invention, the specific type of the electronic device is not particularly limited, such as a mobile phone, a tablet computer, a smart watch, etc., and those skilled in the art can select correspondingly according to the specific use of the electronic device. Here No longer. It should be noted that in addition to the above-mentioned battery module, the electronic device also includes other necessary components and structures, taking a mobile phone as an example, such as a display device, a processor, a memory, a circuit board, a camera or a casing, etc. etc., those skilled in the art can design and supplement accordingly according to the specific type of the electronic device, which will not be repeated here.

To sum up, according to the embodiments of the present invention, the present invention proposes a mobile device, the assembly cost and the manufacturing cost of the battery module of which are lower, so that the electric capacity of the electronic device is higher and the volume is larger Small size and lower cost, thereby making the electronic device more competitive in the market. Those skilled in the art can understand that the features and advantages described above with respect to the dual-cell battery module are still applicable to the electronic device, and are not repeated here.

In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for description purposes, and should not be interpreted as indicating or implying relative importance or implicitly indicating the indicated technical features. quantity. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations of the present invention, and those of ordinary skill in the art are within the scope of the present invention Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (6)

1. A battery module, comprising:

a first cell and a second cell;

the battery comprises a first battery cell, a second battery cell, a first electrode lug, a second electrode lug, a first electrode lug and a second electrode lug, wherein the first electrode lug and the second electrode lug are electrically connected to the first battery cell and the second battery cell respectively;

a protection circuit board, the protection circuit board further comprising:

a first protection circuit board and a second protection circuit board, the first protection circuit board including a first connection end, the second protection circuit board including a second connection end, the first connection end connecting the second connection end, and

first utmost point ear link, second utmost point ear link, electrically conductive output terminal, first utmost point ear link set up in first protection circuit board, second utmost point ear link with electrically conductive output terminal set up in second protection circuit board, first utmost point ear link with second utmost point ear link connect respectively in first utmost point ear with second utmost point ear, electrically conductive output terminal is used for connecting electronic equipment's mainboard.

2. The battery module according to claim 1, wherein the first protection circuit board is L-shaped, and the second protection circuit board is T-shaped.

3. The battery module according to claim 1, wherein the first connection end is connected to the second connection end by a snap fit.

4. A battery module, comprising:

a first cell and a second cell;

the battery comprises a first battery cell, a second battery cell, a first electrode lug, a second electrode lug, a first electrode lug and a second electrode lug, wherein the first electrode lug and the second electrode lug are electrically connected to the first battery cell and the second battery cell respectively;

the protection circuit board, the protection circuit board includes first utmost point ear link, second utmost point ear link and electrically conductive output terminal, first utmost point ear link with second utmost point ear link connect respectively in with first utmost point ear with the second utmost point ear, electrically conductive output terminal is used for connecting electronic equipment's mainboard, the protection circuit board is the Z type.

5. The battery module according to claim 4, wherein the first tab is welded to the first tab connection end and the second tab is welded to the second tab connection end.

6. An electronic device comprising the battery module according to any one of claims 1 to 5.

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