Information acquisition assembly, battery pack and electric equipment

Abstract

The utility model provides an information acquisition subassembly, battery pack, electric equipment, information acquisition subassembly includes circuit board, connector, circuit board includes a plurality of signal acquisition line, signal acquisition line at least part extends along the length direction of circuit board, connector includes a plurality of puncture terminal that sets up side by side along the width direction of circuit board, each puncture terminal penetrates through the circuit board and is electrically connected with the corresponding signal acquisition line; and one end of the puncturing terminal penetrates through the circuit board and is electrically connected with the signal acquisition line, and the other end of the puncturing terminal can be directly inserted into the battery management assembly, so that a wiring harness for switching between the information acquisition assembly and the battery management assembly is omitted, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of power battery technology, specifically to an information acquisition component, a battery pack, and an electrical device. Background Technology

[0002] In related technologies, the information acquisition component is electrically connected to the battery management component through a wire harness adapter. Specifically, two female connectors are set at both ends of the wire harness, and male connectors are set at the information acquisition component and the battery management component. The female connector at one end of the wire harness is electrically connected to the male connector of the information acquisition component, and the female connector at the other end of the wire harness is electrically connected to the male connector of the battery management component. Thus, the electrical connection between the information acquisition component and the battery management component is achieved through the wire harness adapter. However, the wire harness adapter solution has the following drawbacks: (1) The distance between the information acquisition component and the battery management component is relatively large, requiring a long wire harness, which leads to high costs; (2) Adding a wire harness adapter increases the risk of acquisition failure; (3) Adding a wire harness adapter is not conducive to the overall package space layout, resulting in low space utilization; (4) Adding a wire harness adapter reduces the overall package production and assembly efficiency.

[0003] Therefore, in related technologies, the information acquisition component has the technical problem of requiring a wiring harness adapter to achieve electrical connection with the battery management component. Utility Model Content

[0004] The embodiments of this utility model provide an information acquisition component, a battery pack, and an electrical device, which can improve the technical problem in related technologies where information acquisition components require wiring harness adapters to achieve electrical connection with battery management components.

[0005] In a first aspect, embodiments of the present invention provide an information acquisition component, comprising:

[0006] The circuit board includes multiple signal acquisition lines, at least a portion of which extend along the length of the circuit board.

[0007] The connector includes a plurality of piercing terminals arranged side by side along the width direction of the circuit board;

[0008] At least one of the piercing terminals penetrates the circuit board and is electrically connected to the corresponding signal acquisition line.

[0009] In one embodiment, the piercing terminal includes a first portion electrically connected to the circuit board and a protrusion disposed on at least one side of the first portion, the protrusion penetrating the circuit board and electrically connected to the corresponding signal acquisition line.

[0010] In one embodiment, the protrusion passes through the corresponding signal acquisition line to be electrically connected to the signal acquisition line.

[0011] In one embodiment, the protrusion includes a body sub-part and a bent sub-part, the body sub-part being connected between the bent sub-part and the first portion, and the bent sub-part being bently connected to the body sub-part; wherein the body sub-part passes through the corresponding signal acquisition line, and the bent sub-part hooks onto the circuit board.

[0012] In one embodiment, there are multiple protrusions, which are respectively disposed on opposite first and second sides of the first portion; wherein the protrusions disposed on the first side and the protrusions disposed on the second side are offset in the width direction of the circuit board.

[0013] In one embodiment, the bent portion of the protrusion disposed on the first side bends toward the protrusion disposed on the second side, and the bent portion of the protrusion disposed on the second side bends toward the protrusion disposed on the first side.

[0014] In one embodiment, the spacing between adjacent puncture terminals ranges from 1.8 mm to 3 mm.

[0015] In one embodiment, a support plate for supporting the circuit board is provided on the first portion, and the support plate is disposed between the protrusion on the first side and the protrusion on the second side.

[0016] Secondly, embodiments of the present invention provide a battery pack including an information acquisition component as described in any of the above embodiments.

[0017] Thirdly, embodiments of this utility model provide an electrical device including the information acquisition component described in any of the above embodiments.

[0018] The beneficial effects of the embodiments of this utility model are as follows:

[0019] In embodiments of this invention, by providing multiple piercing terminals, these terminals can be directly plugged into the connection terminals of the battery management component, eliminating the need for adapter wiring harnesses. Furthermore, one end of the piercing terminal penetrates the circuit board and is electrically connected to the corresponding signal acquisition line, ensuring the stability of the connection between the piercing terminal and the signal acquisition line. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the first structure of the information acquisition component provided in an embodiment of the present utility model;

[0022] Figure 2 This is provided by an embodiment of the present utility model. Figure 1 An enlarged view of the information acquisition component in the first area 11;

[0023] Figure 3 This is a schematic diagram of the first structure of the information acquisition component provided in an embodiment of the present utility model;

[0024] Figure 4 This is provided by an embodiment of the present utility model. Figure 3 An enlarged view of the information acquisition component in the second area 12;

[0025] Figure 5 This is a schematic diagram of the electrical connection between the information acquisition component and the battery management component provided in an embodiment of this utility model. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0027] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4The information acquisition component 1 provided in the embodiment of this utility model includes a circuit board 2 and a connector 3. The circuit board 2 includes multiple signal acquisition lines, at least a portion of which extend along the length direction of the circuit board 2. The connector 3 includes multiple piercing terminals 4 arranged side by side along the width direction of the circuit board 2. At least one piercing terminal 4 penetrates the circuit board 2 and is electrically connected to the corresponding signal acquisition line.

[0028] In this embodiment, by setting multiple independent piercing terminals 4, with one end of the piercing terminal 4 penetrating through the circuit board 2 and electrically connected to the corresponding signal acquisition line, the piercing terminal 4 can be directly plugged into the connection terminal of the battery management component 9 to realize the electrical connection between the information acquisition component 1 and the battery management component 9. This eliminates the need for a wiring harness for conversion, alleviating the technical problem that the information acquisition component 1 needs a wiring harness conversion to achieve the electrical connection with the battery management component 9. At the same time, it can also ensure the connection stability between the piercing terminal and the signal acquisition line.

[0029] The technical solution of this application will now be described in conjunction with specific embodiments.

[0030] It is important to note that Figure 2 for Figure 1 Enlarged view of the first region 11 in the middle. Figure 4 for Figure 3 Enlarged view of the second region 12 in the middle.

[0031] In one embodiment, please refer to Figure 3 , Figure 4 The piercing terminal 4 includes a first part 5 electrically connected to the circuit board 2 and a protrusion 6 disposed on at least one side of the first part 5. The protrusion 6 penetrates the circuit board 2 and is electrically connected to the corresponding signal acquisition line.

[0032] The first part 5 extends along the length of the circuit board 2, and the protrusion 6 is integrally formed with the first part 5, with the protrusion of the protrusion 6 facing the circuit board 2.

[0033] The puncture terminal 4 also includes a second part 7 integrally formed with the first part 5. One end of the second part 7 is connected to the first part 5, and the other end of the second part 7 is plugged into the connection terminal of the battery management component 9.

[0034] It is understood that the protrusion 6 includes at least one protrusion, which pierces and penetrates the circuit board 2 to achieve electrical connection between the first part 5 of the pierced terminal 4 and the signal acquisition line on the circuit board 2, and then through the second part 7 of the pierced terminal 4 to achieve electrical connection with the signal acquisition port of the battery management component 9, thereby achieving electrical connection between the battery management component 9 and the information acquisition component 1.

[0035] In this embodiment, a protrusion 6 is provided on the side of the first part 5 of the pierced terminal 4 facing the circuit board 2 to penetrate the circuit board 2 and be electrically connected to the signal acquisition line. The second part 7 of the pierced terminal 4 is plugged into the connection terminal of the battery management component 9, thereby realizing the direct connection between the battery management component 9 and the information acquisition component 1, eliminating the need for a conversion harness.

[0036] In one embodiment, the protrusion 6 passes through the corresponding signal acquisition line and is electrically connected to the signal acquisition line.

[0037] Among them, the protrusion 6 on the pierced terminal 4 is electrically connected to only one signal acquisition line.

[0038] In one embodiment, please refer to Figure 3 , Figure 4 The protrusion 6 includes a body sub-part 61 and a bent sub-part 62. The body sub-part 61 is connected between the bent sub-part 62 and the first part 5, and the bent sub-part 62 is bent and connected to the body sub-part 61. The body sub-part 61 passes through the corresponding signal acquisition line, and the bent sub-part 62 hooks onto the circuit board 2.

[0039] The main body sub-part 61 and the bent sub-part 62 of the protrusion 6 are connected and integrally formed.

[0040] The cross-sectional shape of the body sub-part 61 can be trapezoidal or square.

[0041] In this embodiment, the protrusion 6 includes a bent portion 62 for hooking the piercing terminal 4 onto the circuit board 2, the bent portion 62 enhancing the fixing effect between the piercing terminal 4 and the circuit board 2.

[0042] In one embodiment, the length of the overlapping portion between the piercing terminal 4 and the circuit board 2 along the length direction of the circuit board 2 is greater than or equal to 5.4 mm and less than the length of the piercing terminal 4.

[0043] It is understandable that the more overlap there is between the piercing terminal 4 and the circuit board 2, the more space there is for setting the protrusion 6. By setting more protrusions 6, the fixing effect between the piercing terminal 4 and the circuit board 2 can be strengthened; however, the length of the overlap between the piercing terminal 4 and the circuit board 2 cannot exceed the length of the piercing terminal 4 itself.

[0044] In one embodiment, there are multiple protrusions 6, which are respectively disposed on opposite first and second sides of the first part; wherein the protrusions 6 disposed on the first side and the protrusions 6 disposed on the second side are offset in the width direction of the circuit board 2.

[0045] The first side and the second side are the two sides of the piercing terminal 4 along the width direction of the circuit board 2, respectively.

[0046] It is understandable that the protrusion 6 on the first side and the protrusion 6 on the second side are staggered to avoid mutual interference between the bending parts 62 of different protrusions 6 along the width direction of the circuit board 2. The length of the bending parts 62 can be set to be longer, which is beneficial to improving the hooking effect of the bending parts 62.

[0047] In one embodiment, please refer to Figure 3 , Figure 4 The spacing between adjacent puncture terminals 4 ranges from 1.8 mm to 3 mm.

[0048] The adjacent puncture terminals 4 can be arranged in parallel to each other.

[0049] The adjacent piercing terminals 4 may not be arranged in parallel, and the above-mentioned spacing is the shortest straight-line distance between adjacent piercing terminals 4.

[0050] Among them, an insulating barrier is provided between adjacent puncture terminals 4. The barrier is used to separate adjacent puncture terminals 4. The barrier is made of insulating material.

[0051] The spacing between adjacent puncture terminals 4 can be 1.8 mm, 2.3 mm, 2.8 mm, or 3 mm.

[0052] It is understandable that when the spacing between adjacent piercing terminals 4 is less than 1.8 mm, it will be difficult to crimp the piercing terminals 4, and the barrier between adjacent piercing terminals 4 will be difficult to produce. When the spacing between adjacent piercing terminals 4 is greater than 3 mm, there are drawbacks of low space utilization and high cost. Therefore, choosing a spacing range of 1.8 mm to 3 mm between adjacent piercing terminals 4 can facilitate the crimping of piercing terminals 4 on the one hand, and take into account space utilization and reduce costs on the other hand.

[0053] It is understandable that the gap between the gold fingers in related technologies is small, usually less than 0.8 mm, which makes it easy for the gold fingers to misalign or shift during insertion, resulting in short circuits. However, in this embodiment, by making the gap between adjacent pierced terminals 4 larger and satisfying 1.8 mm to 3 mm, when the pierced terminals 4 are inserted with the connection terminals of the battery management component 9, the adjacent pierced terminals 4 are less likely to short circuit due to sufficient spacing, thereby alleviating the problem of short circuits between terminals when the information acquisition component 1 and the battery management component 9 are inserted.

[0054] In this embodiment, by increasing the spacing between adjacent piercing terminals 4, the piercing terminals 4 are less likely to be misaligned or misaligned when they are plugged into the connection terminals of the battery management component 9, thus avoiding short circuits and short circuits between adjacent piercing terminals 4.

[0055] In one embodiment, the connector 3 further includes an insulating housing, which includes at least a barrier disposed between adjacent pierced terminals 4, the barrier being used to separate adjacent pierced terminals 4 so that adjacent pierced terminals 4 are insulated from each other.

[0056] In one embodiment, the bent portion 62 of the protrusion 6 on the first side bends toward the protrusion 6 on the second side, and the bent portion 62 of the protrusion 6 on the second side bends toward the protrusion 6 on the first side.

[0057] It is understandable that the signal acquisition line can be located between the protrusions 6 on the first and second sides. The bending part 62 of the protrusion 6 bends toward the signal acquisition line, so that the bending part 62 pierces the signal acquisition line for electrical connection. Furthermore, by increasing the number of protrusions 6 that pierce the signal acquisition line, the contact area between the piercing terminal 4 and the signal acquisition line can be increased, the contact impedance between the two can be reduced, and the signal transmission efficiency can be improved.

[0058] In one embodiment, please refer to Figure 2 , Figure 4 The first part 5 is provided with a support plate 8 for supporting the circuit board 2. The support plate 8 is located between the protrusion 6 on the first side and the protrusion 6 on the second side.

[0059] One of the support plates 8 is provided with a corresponding piercing terminal 4.

[0060] Understandably, considering space utilization, the spacing between adjacent signal acquisition lines needs to be less than or equal to 1.2 mm and greater than 0. The piercing terminal 4 needs to be electrically connected to the corresponding signal acquisition line, so the width of the piercing terminal 4 also needs to be less than or equal to 1.2 mm and greater than 0.

[0061] It is understandable that when the width of the pierced terminal 4 is greater than 1.2 mm, it is easy for the pierced terminal 4 to occupy more space, which is not conducive to wiring and causes low space utilization.

[0062] Furthermore, the support plate 8 is snapped between adjacent protrusions 6 of the piercing terminal 4, therefore, the width of the support plate 8 needs to be less than or equal to the width of the piercing terminal 4.

[0063] It should be noted that the support plate 8 is snapped between the adjacent protrusions 6, which helps to fix the support plate 8 on the piercing terminal 4 and prevents the support plate 8 from shifting and causing support failure.

[0064] In this embodiment, the support plate 8 is snapped between the adjacent protrusions 6 at the puncture end to enhance the stability and reliability of the support plate 8, thereby making the support plate 8 provide better support for the signal acquisition line.

[0065] In one embodiment, the hardness of the support plate 8 is greater than the hardness of the circuit board 2 and the hardness of the signal acquisition line.

[0066] In one embodiment, please refer to Figure 2 , Figure 4 The width of the support is greater than the width of the signal acquisition line, and the difference between the width of the support and the width of the signal acquisition line is greater than or equal to 0.2 mm and less than or equal to 1 mm.

[0067] It is understandable that, along the width direction of the circuit board 2, the width of the support plate 8 needs to be at least greater than the width of the signal acquisition line to ensure that the support plate 8 can provide sufficient support for the corresponding signal acquisition line.

[0068] It should be noted that, in the thickness direction of the circuit board 2, the signal acquisition line can be aligned with the piercing terminal 4, and the signal acquisition line can also be aligned with the support plate 8; when the signal acquisition line is aligned with the support plate 8, the bending direction of the bending part 62 is towards the signal acquisition line, and the side of the signal acquisition line is pierced by the tip of the bending part 62, thereby realizing the electrical connection between the signal acquisition line and the bending part 62; when the signal acquisition line is aligned with the piercing terminal 4, both the body part 61 and the bending part 62 can pierce the signal acquisition line.

[0069] In this embodiment, please refer to Figure 2 , Figure 4 This makes the width of the support plate 8 greater than the width of the signal acquisition line, so that the support plate 8 provides better support for the signal acquisition line and can prevent the signal acquisition line itself from deforming, causing short circuits due to overlap between adjacent signal acquisition lines, or causing abnormalities due to the signal acquisition line being deformed and connecting with multiple pierced terminals 4.

[0070] In one embodiment, please refer to Figure 5 The information acquisition component 1 also includes multiple chip packages and a bus, wherein the bus is connected between the multiple chip packages and the signal acquisition line of the circuit board 2.

[0071] Among them, circuit board 2 can be FPC (Flexible Printed Circuit).

[0072] An embodiment of this utility model also provides a battery pack, including an information acquisition component 1 as described in any of the above embodiments.

[0073] In one embodiment, please refer to Figure 5 The battery pack also includes a battery management component 9, which includes multiple connection terminals. A receiving cavity is formed on the side of the pierced terminal 4 facing the connection terminal to accommodate the corresponding connection terminal and to electrically connect to the connection terminal.

[0074] The inner wall of the receiving cavity abuts against the outer wall of the piercing terminal 4.

[0075] The cavity of the piercing terminal 4 has the same shape and size as the connecting terminal.

[0076] The size of the cavity of the piercing terminal 4 can be smaller than that of the connecting terminal. The cavity of the piercing terminal 4 and the connecting terminal are interference-fitted, so that the connecting terminal is more firmly snapped into the cavity of the piercing terminal 4, and the piercing terminal 4 and the connecting terminal are electrically connected.

[0077] It is understandable that the receiving cavity of the piercing terminal 4 is used to accommodate the connecting terminal so as to realize the insertion of the piercing terminal 4 and the connecting terminal, thereby realizing the electrical connection between the information acquisition component 1 and the battery management component 9.

[0078] An embodiment of this utility model also provides an electrical device, including the information acquisition component 1 of any of the above embodiments, or including the battery pack of any of the above embodiments.

[0079] This utility model mainly provides a solution to achieve electrical connection with the signal acquisition line by piercing the circuit board 2 through the piercing terminal 4. By piercing the circuit board 2 through the piercing terminal 4, the piercing terminal 4 of the information acquisition component 1 can be directly plugged into the connection terminal of the battery management component 9, so that the information acquisition component 1 and the battery management component 9 are electrically connected, thereby eliminating the need for wiring harnesses and reducing costs.

[0080] To eliminate the need for wiring harnesses, this application also provides a method of directly inserting gold fingers into the battery management component 9. The gold fingers are plated on the end of the circuit board 2 facing the battery management component 9. When the gold fingers are inserted into the connection terminals of the battery management component 9, multiple gold fingers located on the flexible circuit board are prone to misalignment, resulting in short circuits between adjacent gold fingers.

[0081] This utility model also provides a technical solution to prevent short circuit between adjacent pierced terminals 4. By making the spacing between adjacent pierced terminals 4 range from 1.8 mm to 3 mm, since the spacing between the pierced terminals 4 can be set to be large, it can prevent the pierced terminals 4 from being misaligned or misaligned when they are inserted with the battery management component 9, and avoid short circuit between adjacent pierced terminals 4.

[0082] This utility model adopts a connection scheme of piercing terminals to pierce the circuit board. The gap between adjacent pierced terminals can be set to be larger, making it easier to put insulating material between adjacent pierced terminals to achieve the insulation effect, thereby improving the technical problem of short circuit between adjacent terminals.

[0083] Furthermore, this utility model adopts a connection scheme of piercing the circuit board through the piercing terminal, which makes it easier to observe the connection between the piercing terminal and the circuit board; and the piercing process makes the connection between the piercing terminal and the FPC body more stable; thus alleviating the technical problem of unstable connection between the piercing terminal and the circuit board.

[0084] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An information acquisition component, characterized in that, include: A circuit board includes multiple signal acquisition lines, at least a portion of which extend along the length of the circuit board. The connector includes a plurality of piercing terminals arranged side by side along the width direction of the circuit board; At least one of the piercing terminals penetrates the circuit board and is electrically connected to the corresponding signal acquisition line.

2. The information acquisition component according to claim 1, characterized in that, The piercing terminal includes a first portion electrically connected to the circuit board and a protrusion disposed on at least one side of the first portion. The protrusion penetrates the circuit board and is electrically connected to the corresponding signal acquisition line.

3. The information acquisition component according to claim 2, characterized in that, The protrusion passes through the corresponding signal acquisition line and is electrically connected to the signal acquisition line.

4. The information acquisition component according to claim 3, characterized in that, The protrusion includes a body sub-part and a bent sub-part. The body sub-part is connected between the bent sub-part and the first part, and the bent sub-part is bent and connected to the body sub-part. The body sub-part passes through the corresponding signal acquisition line, and the bent sub-part hooks onto the circuit board.

5. The information acquisition component according to claim 4, characterized in that, The number of protrusions is multiple, and the multiple protrusions are respectively disposed on a first side and a second side opposite to the first part; wherein the protrusions disposed on the first side and the protrusions disposed on the second side are offset in the width direction of the circuit board.

6. The information acquisition component according to claim 5, characterized in that, The bent portion of the protrusion on the first side bends toward the protrusion on the second side, and the bent portion of the protrusion on the second side bends toward the protrusion on the first side.

7. The information acquisition component according to claim 5, characterized in that, The first part is provided with a support plate for supporting the circuit board, and the support plate is disposed between the protrusion on the first side and the protrusion on the second side.

8. The information acquisition component according to any one of claims 1-7, characterized in that, The spacing between adjacent puncture terminals ranges from 1.8 mm to 3 mm.

9. A battery pack, characterized in that, Includes the information acquisition component as described in any one of claims 1 to 8.

10. An electrical appliance, characterized in that, Includes the information acquisition component as described in any one of claims 1 to 8.

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