Electrical connectors, battery packs and electronic devices

Abstract

The embodiment of the present application discloses an electrical connector, which includes M rows of connection terminals, each row of connection terminals includes N columns, and a plurality of voltage signal terminals capable of collecting voltage signals, the voltage signal including the voltage value of the voltage signal terminal; in any row of connection terminals, the voltage value collected by the voltage signal terminal located in the i-th column is V(i), and the voltage value collected by the voltage signal terminal located in the j-th column is V(j), wherein V(i)≤V(j), 1≤i<j≤N, M is an integer greater than or equal to 2, and N is an integer greater than or equal to 3. In the above manner, the embodiment of the present application can slow down the corrosion rate of the internal terminals of the electrical connector, thereby extending the service life of the electrical connector and improving the reliability of the battery pack during operation.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of battery technology, and in particular, to an electrical connector, a battery pack, and an electronic device. Background Art

[0002] The battery pack includes a battery module and a battery management system. The battery module is composed of many single cells connected in series and / or in parallel. If the state of a single cell in the battery module is abnormal, it will greatly affect the normal operation of the battery module. Therefore, in practical applications, the battery management system is required to monitor the voltage information of each single cell in real time.

[0003] The battery management system and the battery pack are generally electrically connected through an electrical connector. The electrical connector is provided with multiple connection terminals connected to the voltage sampling points of each single battery cell. The distance between adjacent connection terminals is small and there is a potential difference. When water vapor in the air enters the interior of the electrical connector, it is easy to corrode the connection terminals and affect the use of the electrical connector. Summary of the invention

[0004] The embodiments of the present application are intended to provide an electrical connector, a battery pack, and an electronic device, which can slow down the corrosion rate of the internal connection terminals of the electrical connector, thereby extending the service life of the electrical connector and improving the reliability of the battery pack during operation.

[0005] In a first aspect, an embodiment of the present application provides an electrical connector, comprising M rows of connection terminals, each row of connection terminals comprising N columns, and a plurality of voltage signal terminals capable of collecting voltage signals, wherein the voltage signal comprises the voltage value of the voltage signal terminal. In any row of connection terminals, the voltage value collected by the voltage signal terminal located in the i-th column is V(i), and the voltage value collected by the voltage signal terminal located in the j-th column is V(j), wherein V(i)≤V(j), 1≤i<j≤N, M is an integer greater than or equal to 2, and N is an integer greater than or equal to 3. By making the voltage values ​​of the voltage signal terminals in each row change monotonically along the fixed direction of the column of the M rows of connection terminals, there are no terminals with a large potential difference on both sides of each voltage signal terminal.

[0006] Optionally, in the Hth row of connection terminals and the adjacent H+1th row of connection terminals, the voltage value collected by any voltage signal terminal located in the kth column is less than or equal to the voltage value collected by any voltage signal terminal located in the k+1th column, wherein 1≤H≤M-1, 1≤k≤N-1. This setting method can ensure that there are no terminals with a large potential difference around each voltage signal terminal.

[0007] In one embodiment, in the Hth row of connection terminals and the H+1th row of connection terminals, the voltage values ​​collected by the voltage signal terminals located in the kth column and the k+1th column are V(H, k), V(H+1, k), V(H, k+1), and V(H+1, k+1), respectively, where V(H, k)≤V(H+1, k)≤V(H, k+1)≤V(H+1, k+1), 1≤H≤M-1, 1≤k≤N-1. That is, in two adjacent rows of connection terminals, the connection lines formed by the voltage signal terminals in the two adjacent columns according to their voltage values ​​are N-shaped, which can reduce the potential difference between the two adjacent voltage signal terminals in the same row.

[0008] Optionally, the Hth row of connection terminals and the adjacent H+1th row of connection terminals further include a first floating terminal, and the first floating terminal is located between any two voltage signal terminals. The provision of the first floating terminal can increase the distance between two adjacent voltage signal terminals and reduce the risk of breakdown or short circuit.

[0009] In some embodiments, among the connection terminals in the Hth row and the adjacent H+1th row, one of the connection terminals located in the kth column and the k+1th column is configured as a first floating terminal, and the remaining three connection terminals are configured as voltage signal terminals;

[0010] The first floating terminal is located in the same row as the voltage signal terminal with the smallest collected voltage value, or is located in the same row as the voltage signal terminal with the largest collected voltage value.

[0011] In some embodiments, at least M first floating terminals are provided, and at least one first floating terminal is provided in each row of connecting terminals.

[0012] Optionally, in any row of connection terminals, the first floating terminals and the voltage signal terminals are spaced apart so that the distance between two adjacent voltage signal terminals in the same row is doubled.

[0013] In one embodiment, in the Hth row of connection terminals and the adjacent H+1th row of connection terminals, a column of floating terminals and a column of voltage signal terminals are alternately arranged, and the voltage values ​​collected by the voltage signal terminals located in the kth column and the k+2th column are V(H, k), V(H+1, k), V(H, k+2) and V(H+1, k+2), respectively, where V(H, k)≤V(H+1, k)≤V(H, k+2)≤V(H+1, k+2), 1≤H≤M-1, 1≤k≤N-2.

[0014] In some embodiments, the M rows of connection terminals also include at least one ground signal terminal, which is located at the first end of the M rows of connection terminals and is configured to be adjacent to the voltage signal terminal with the smallest collected voltage value to reduce the potential difference between the ground signal terminal and the adjacent voltage signal terminal.

[0015] Optionally, the M rows of connection terminals further include at least one power supply terminal, which is located at the second end of the M rows of connection terminals and is configured to be adjacent to the voltage signal terminal with the largest collected voltage value to reduce the potential difference between the power supply terminal and the adjacent voltage signal terminal.

[0016] In some embodiments, the M rows of connection terminals further include a plurality of second floating terminals, and the second floating terminals are disposed between the ground signal terminal and the voltage signal terminal, and / or between the voltage signal terminal and the power supply terminal.

[0017] In a second aspect, an embodiment of the present application provides a battery pack, which includes a battery module, a battery management system, and an electrical connector as described above, wherein the electrical connector is electrically connected to the battery module. The battery module includes a plurality of single cells, each of which is provided with a voltage sampling point, and the voltage signal terminal in the electrical connector is electrically connected to the voltage sampling point on the single cell.

[0018] In a third aspect, an embodiment of the present application provides an electronic device, and the electronic device includes the battery pack as described above.

[0019] The electrical connector provided in the embodiment of the present application includes M rows of connection terminals, each row of connection terminals includes N columns, and multiple voltage signal terminals capable of collecting voltage signals, the voltage signal including the voltage value of the voltage signal terminal, in any row of connection terminals, the voltage value collected by the voltage signal terminal located in the i-th column is V(i), and the voltage value collected by the voltage signal terminal located in the j-th column is V(j), and V(i)≤V(j); the embodiment of the present application sets the voltage value of the voltage signal terminal to change monotonically along a fixed direction of the column of the M rows of connection terminals, so that there are no terminals with a large potential difference on both sides of each voltage signal terminal, which can slow down the corrosion rate of the connection terminals inside the electrical connector, thereby extending the service life of the electrical connector and improving the reliability of the battery pack during operation; moreover, based on the existing electrical connector, only the circuit routing and software definition need to be adjusted, which is simple and feasible. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0021] Figure 1 is a schematic diagram of a battery pack provided in an embodiment of the present application;

[0022] Figure 2 is a schematic diagram of an electrical connector provided in one embodiment of the present application;

[0023] Figure 3a and 3b is a schematic diagram of an electrical connector provided by another embodiment of the present application;

[0024] Figure 4a and 4b is a schematic diagram of an electrical connector provided by another embodiment of the present application;

[0025] Figure 5 is a schematic diagram of an electrical connector provided by yet another embodiment of the present application;

[0026] Figure 6 is a schematic diagram of an electrical connector provided by yet another embodiment of the present application;

[0027] Figure 7 is a schematic diagram of an electrical connector provided by yet another embodiment of the present application;

[0028] Figure 8 is a schematic diagram of an electrical connector provided by another embodiment of the present application;

[0029] Fig. 9 It is a schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The words "first", "second" and similar terms used in this specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. The term "and / or" used in this specification includes any and all combinations of one or more of the relevant listed items.

[0032] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0033] See also Figure 1 , Figure 1 A schematic diagram of a battery pack provided in an embodiment of the present application is shown, Figure 1 As shown, the battery pack 1 includes a battery module 10, a battery management system 20, and an electrical connector 30 connecting the battery module 10 and the battery management system 20. The battery management system 20 is connected to the information sampling point set on the battery module 10 through the electrical connector 30, so as to obtain the status information about the battery module 10 collected by the information sampling point.

[0034] In this embodiment, the status information about the battery module 10 collected by the battery management system 20 includes the voltage information of each single cell contained in the battery module 10. Specifically, a voltage sampling point A1 can be set at both ends of each single cell, wherein, if multiple single cells are connected in series, a voltage sampling point A1 can be set between two adjacent single cells. For example, when the battery module includes m single cells (m is a positive integer), m+1 voltage sampling points A1 can be set on the battery module. In other embodiments, multiple single cells can also be connected in series first and then in parallel, and the number of voltage sampling points depends on the specific series-parallel connection method of the multiple single cells.

[0035] In some embodiments, the battery module 10 is also provided with a temperature sampling point, a pressure sampling point and a humidity sampling point, and one or more of the above sampling points can be set; then the status information about the battery module 10 collected by the battery management system 20 also includes one or more of the following data: temperature information of the battery module 10, pressure information of the battery module 10 and humidity information of the battery module 10.

[0036] The electrical connector 30 is provided with a plurality of connection terminals connected to the information sampling points of the battery module 10 (e.g., the voltage sampling points of each single cell). In practical applications, there is no fixed rule for defining each connection terminal. The specific definition is generally based on the circuit wiring as the main reference factor. The current definition method of each connection terminal will greatly accelerate the corrosion rate of the connection terminal.

[0037] Taking brass terminals plated with Ni and Sn as an example, in a high temperature and high humidity environment, a water film is easily formed inside the electrical connector. Due to the presence of impurity ions in the water film, an electrolytic circuit can be formed between the water film with impurity ions and the connection terminals with different voltage values. In particular, when the voltage difference between adjacent connection terminals is large, the leakage current is also large. The connection terminals with higher voltage values ​​are prone to oxidation reactions to form Sn. 2+ / Sn 4+ , and then react with OH in the water film -Ions generate white Sn(OH) 4 Precipitation, scattered around the connection terminal, at the same time, the H in the water film near the connection terminal with a lower voltage value + Electrons are obtained to generate hydrogen. When Sn reacts completely, the Ni plating of the connection terminal with the highest voltage value begins to electrolyze, and finally the substrates Zn and Cu also undergo electrolysis. When there are enough electrolysis products, the surface of the connection terminal will be covered with corrosion products with low conductivity, which will greatly increase the contact resistance of the electrical connector, affect the use of the electrical connector, and ultimately affect the collection of voltage information, reducing the reliability of the battery pack during operation.

[0038] The embodiment of the present application can reduce the voltage difference between adjacent connection terminals by optimizing the definition of the connection terminals inside the electrical connector 30, thereby reducing the corrosion rate of the connection terminals.

[0039] See also Figure 2 , Figure 2 A schematic diagram of an electrical connector 30 provided in one embodiment of the present application is shown, wherein the electrical connector 30 includes M rows of connection terminals, each row of connection terminals includes N columns, and a plurality of voltage signal terminals capable of collecting voltage signals, wherein the voltage signal includes a voltage value of the voltage signal terminal, that is, a voltage value of a voltage sampling point connected to the voltage signal terminal. In any row of connection terminals, the voltage value collected by the voltage signal terminal located in the i-th column is V(i), and the voltage value collected by the voltage signal terminal located in the j-th column is V(j), wherein V(i)≤V(j), 1≤i<j≤N, M is an integer greater than or equal to 2, and N is an integer greater than or equal to 3.

[0040] Exemplarily, for the first row of connection terminals, if B11, B12...B1N are all configured as voltage signal terminals, and the collected voltage values ​​are V(B11), V(B12)...V(B1n), respectively, then V(B11)≤V(B12)≤...≤V(B1N); for the mth row of connection terminals, if Bm1, Bm2...BmN are all configured as voltage signal terminals, and the collected voltage values ​​are V(Bm1), V(Bm2)...V(BmN), respectively, then V(Bm1)≤V(Bm2)≤...≤V(BmN), where 2≤m≤M. By setting the voltage values ​​of each row of voltage signal terminals to change monotonically along a fixed direction of the column of the M rows of connection terminals, there are no terminals with a large potential difference on both sides of each voltage signal terminal.

[0041] It is understandable that in Figure 2 In the illustrated embodiment, the potential value collected by the voltage signal terminal decreases monotonically from right to left. In another embodiment, the potential value of the voltage signal terminal may also decrease monotonically from left to right.

[0042] In specific implementation, the voltage information of the voltage sampling point on each single cell can be obtained first, the voltage values ​​corresponding to each voltage sampling point can be sorted, and then the connection terminal B11 is used as the first voltage signal terminal, and each connection terminal is connected to the corresponding voltage sampling point in sequence according to preset rules.

[0043] In one embodiment, the preset rule is that in at least two adjacent rows of connection terminals, each connection terminal is connected to the corresponding voltage sampling point in sequence according to a zigzag direction, so that the connection lines formed by the voltage signal terminals according to their voltage values ​​are zigzag in at least two adjacent rows of terminals, and the connection lines formed by two adjacent columns of voltage signal terminals according to their voltage values ​​are N-shaped.

[0044] Figure 3a and Figure 3b Schematic diagrams showing that the connection lines formed by two adjacent columns of voltage signal terminals in two adjacent rows of connection terminals and in adjacent M rows of terminals are N-shaped according to the magnitude of their voltage values ​​are shown respectively. Figure 3a and Figure 3b In the example, the voltage value collected by any voltage signal terminal located in the kth column is less than or equal to the voltage value collected by any voltage signal terminal located in the k+1th column.

[0045] Among them, Figure 3a In the example, if the voltage values ​​collected by the voltage signal terminals located in the kth column and the k+1th column are V(H, k), V(H+1, k), V(H, k+1), and V(H+1, k+1), respectively, then V(H, k)≤V(H+1, k)≤V(H, k+1)≤V(H+1, k+1), 1≤H≤M-1, 1≤k≤N-1. For example, the voltage signal terminal B0 is the voltage signal terminal with the smallest collected voltage value, and the voltage signal terminal B1 is the voltage signal terminal with the second smallest collected voltage value. By analogy, V(B0)≤V(1)≤……≤V(B11). This arrangement can reduce the potential difference between two adjacent voltage signal terminals.

[0046] In some embodiments of the present application, among the voltage signal terminals in the Hth row and the adjacent H+1th row, the voltage collected by any voltage signal collection terminal B(H, K) or B(H+1, K) located in the Kth column is smaller than the voltage collected by any voltage signal terminal B(H, K+1) or B(H+1, K+1) located in the K+1th column.

[0047] In one embodiment, the preset rule is that in at least two adjacent rows of terminals, each connecting terminal is connected to the corresponding voltage sampling point in sequence according to a circular direction, so that the connection line formed by the voltage signal terminal according to the size of its voltage value is a square waveform in at least two adjacent rows of connecting terminals, and the connection line formed by the voltage signal terminals in two adjacent columns according to the size of their voltage value is U-shaped or inverted U-shaped.

[0048] Figure 4a and Figure 4b Schematic diagrams are respectively shown in which the connection lines formed by two adjacent columns of voltage signal terminals in two adjacent rows of connection terminals and in M ​​adjacent rows of terminals are U-shaped or inverted U-shaped according to the magnitude of their voltage values. Similarly, the voltage value collected by any voltage signal terminal located in the kth column is less than or equal to the voltage value collected by any voltage signal terminal located in the k+1th column.

[0049] Among them, Figure 4a , if the voltage values ​​collected by the voltage signal terminals located in the kth column and the k+1th column are V(H, k), V(H+1, k), V(H, k+1) and V(H+1, k+1) respectively, then V(H, k)≤V(H+1, k)≤V(H+1, k+1)≤V(H+1, k), 1≤H≤M-1, 1≤k≤N-1. Figure 3a In comparison, for the same two columns of terminals, the voltage difference between the two voltage signal terminals in one row of the connection terminal group is smaller than that in the other row. Figure 3a The voltage difference between the two voltage signal terminals in the other row of connection terminals is larger. Figure 3a This arrangement can also significantly reduce the potential difference between two adjacent voltage signal terminals.

[0050] Alternatively, if Figure 5 As shown, in the Hth row of connection terminals and the adjacent H+1th row of connection terminals, a first floating terminal NC is further included, and the first floating terminal NC can be arranged between any two voltage signal terminals. When one of the connection terminals located in the kth column and the k+1th column is configured as the first floating terminal, and the other three connection terminals are configured as voltage signal terminals, the first floating terminal NC is located in the same row as the voltage signal terminal with the smallest collected voltage value, or is located in the same row as the voltage signal terminal with the largest collected voltage value.

[0051] Exemplarily, in the adjacent 1-2 columns, the connection terminal located in the Hth row and the 2nd column is configured as the first floating terminal, and the remaining three connection terminals are configured as voltage signal terminals B0, B1, and B2, respectively. In the case where the voltage value of the voltage signal terminal located in the 2nd column is greater than or equal to the voltage value of any voltage signal terminal located in the 1st column, there must be a first floating terminal NC and a voltage signal terminal with the largest voltage value collected in the same column. Therefore, the first floating terminal NC can only be set to be in the same row as the voltage signal terminal with the smallest voltage value collected, then V(B0)≤V(B1)≤V(B2).

[0052] In the adjacent 2-3 columns, the remaining three connection terminals are configured as voltage signal terminals B2, B3, and B4, respectively. When the voltage value of the voltage signal terminal in the 2nd column is less than or equal to the voltage value of any voltage signal terminal in the 3rd column, the first floating terminal NC must be in the same column as the voltage signal terminal with the smallest collected voltage value. Therefore, the first floating terminal NC can only be set to be in the same row as the voltage signal terminal with the largest collected voltage value, and then V(B2)≤V(B3)≤V(B4).

[0053] When the connection terminal located in the Hth row and the 4th column is also configured as the first floating terminal NC, the order of the voltage values ​​collected by the voltage signal terminals in the 3rd to 5th columns can be deduced by the same logic: V(B3)≤V(B4)≤V(B5)≤V(B6)≤V(B7).

[0054] The provision of the first floating terminal NC can not only increase the distance between two adjacent voltage signal terminals and reduce the risk of breakdown or short circuit, but also increase the applicable scenarios of the electrical connector 30. For example, the electrical connector 30 has 32 terminals. After defining the required multiple voltage signal terminals and other required terminals, when there are n connection terminals left, n first floating terminals NC can be defined in the internal connection terminals.

[0055] In actual applications, technicians in this field can set the first floating terminal NC based on the selected electrical connector 30 and the required number of multiple voltage signal terminals and other required terminals, or they can select the model of the electrical connector 30 based on the required number of multiple voltage signal terminals and other required terminals, as well as the number of first floating terminals NC that need to be set.

[0056] In some embodiments, at least M first floating terminals NC are provided, and at least one first floating terminal is provided in each row of connecting terminals.

[0057] Further, in any row of connection terminals, the first floating terminals NC and the voltage signal terminals are arranged at intervals.

[0058] See also Figure 6 In one embodiment, in the Hth row of connection terminals and the adjacent H+1th row of connection terminals, the first floating terminal NC and the voltage signal terminal are staggered, that is, the first floating terminal NC is diagonally arranged between the two adjacent rows of connection terminals, and the voltage signal terminal is also diagonally arranged between the two adjacent rows of connection terminals, so that the distance between two adjacent voltage signal terminals in the same row is doubled.

[0059] See also Figure 7In one embodiment, in the Hth row of connection terminals and the adjacent H+1th row of connection terminals, a column of floating terminals NC and a column of voltage signal terminals are arranged at intervals, wherein, in the embodiment shown in the figure, the connection formed by the two adjacent columns of voltage signal terminals according to the magnitude of their voltage values ​​is N-type, that is, if the voltage values ​​collected by the voltage signal terminals located in the kth column and the k+2th column are V(H, k), V(H+1, k), V(H, k+2) and V(H+1, k+2) respectively, V(H, k)≤V(H+1, k)≤V(H, k+2)≤V(H+1, k+2), 1≤H≤M-1, 1≤k≤N-2.

[0060] like Figure 8 As shown, in some embodiments, the M rows of connection terminals also include at least one ground signal terminal GND, and the at least one ground signal terminal GND is located at the first end of the M rows of connection terminals and is configured to be adjacent to the voltage signal terminal with the smallest collected voltage value to reduce the potential difference between the ground signal terminal and the adjacent voltage signal terminal.

[0061] The M row of connection terminals also includes at least one power supply terminal B+ for passing current, which can be used to power the connected external electronic devices, for example, to power the battery management system (BMS). When one power supply terminal B+ cannot reach the current carrying capacity, two or more power supply terminals B+ need to be set according to the actual situation. The power supply terminal B+ is configured to be adjacent to the voltage signal terminal with the largest voltage value collected, so as to reduce the potential difference between the power supply terminal and the adjacent voltage signal terminal.

[0062] Furthermore, the M row of connection terminals also includes a plurality of second floating terminals NC2, and the second floating terminals NC2 are arranged between the ground signal terminal GND and the voltage signal terminal, and between the voltage signal terminal and the power supply terminal B+. In another embodiment, the second floating terminal NC2 may be arranged only between the ground signal terminal GND and the voltage signal terminal, or only between the voltage signal terminal and the power supply terminal B+.

[0063] Similarly, the setting of the second floating terminal NC2 can not only increase the distance between the two adjacent terminals on its left and right, but also increase the applicable scenarios of the electrical connector 30. Those skilled in the art can define the second floating terminal NC2 according to actual needs.

[0064] In some embodiments, the M rows of connection terminals further include at least one sampling terminal capable of collecting status information, and the status information may include at least one of the following information: temperature information, pressure information, and humidity information.

[0065] Normally, the voltage generated by the sampling terminal connected to the sensor (such as temperature sensor, pressure sensor) set on the battery is 3.3V or 5V, and the voltage of the single cell is generally between 3.3V-4.2. Therefore, the sampling terminal can be set between the voltage signal terminal B0 and the voltage signal terminal B1, or between the voltage signal terminal B1 and the voltage signal terminal B2, wherein the voltage signal terminal B0 is the voltage signal terminal with the smallest collected voltage value, the voltage signal terminal B1 is the voltage signal terminal with the second smallest collected voltage value, and the voltage signal terminal B3 is the voltage signal terminal with the second smallest collected voltage value.

[0066] The electrical connector 30 provided in the embodiment of the present application has a voltage value collected by its voltage signal terminal that changes monotonically along a fixed direction of the column of M rows of connection terminals. There are no terminals with a large potential difference on both sides of each voltage signal terminal, which can slow down the corrosion rate of the connection terminals inside the electrical connector, thereby extending the service life of the electrical connector 30 and improving the reliability of the battery pack 1 during operation. Based on the existing electrical connector 30, the above technical solution can be implemented by simply adjusting the circuit wiring and software definition, which is simple and feasible.

[0067] It should be noted that the electrical connector 30 described in the embodiment of the present application can be an independent connector, or a plug electrical connector or a socket electrical connector. When the electrical connector 30 is a plug electrical connector or a socket electrical connector, the arrangement of the two rows of terminal groups that are adapted to the plug electrical connector or the socket electrical connector is also the same. When used, the plug electrical connector and the socket electrical connector are plugged into each other, and the signals correspond one to one.

[0068] Based on the same inventive concept, the present application embodiment also provides an electronic device, see Fig. 9 The electronic device 2 includes the battery pack 1 described in any of the above embodiments. The electronic device can be any electronic device such as a drone, an electric vehicle, etc. Since the electronic device 2 includes the above battery pack 1, the electronic device 2 can also improve its reliability during operation.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Under the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present application as described above, which are not provided in detail for the sake of simplicity. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electrical connector, comprising M rows of connection terminals, each row of connection terminals comprising N columns, and a plurality of voltage signal terminals capable of collecting voltage signals, wherein the voltage signals comprise voltage values ​​of the voltage signal terminals; In any row of connection terminals, the voltage value collected by the voltage signal terminal located in the i-th column is V(i), and the voltage value collected by the voltage signal terminal located in the j-th column is V(j). in, V(i)≤V(j), 1≤i<j≤N, M is an integer greater than or equal to 2, and N is an integer greater than or equal to 3.

2. The electrical connector according to claim 1, It is characterized in that In the Hth row of connection terminals and the adjacent H+1th row of connection terminals, the voltage value collected by any voltage signal terminal located in the kth column is less than or equal to the voltage value collected by any voltage signal terminal located in the k+1th column, where 1≤H≤M-1, 1≤k≤N-1.

3. The electrical connector according to claim 2, It is characterized in that In the Hth row of connection terminals and the adjacent H+1th row of connection terminals, the voltage values ​​collected by the voltage signal terminals located in the kth column and the k+1th column are V(H, k), V(H+1, k), V(H, k+1) and V(H+1, k+1), respectively, where V(H, k)≤V(H+1, k)≤V(H, k+1)≤V(H+1, k+1).

4. The electrical connector according to claim 2, It is characterized in that The Hth row of connection terminals and the adjacent H+1th row of connection terminals also include a first floating terminal, and the first floating terminal is located between any two of the voltage signal terminals.

5. The electrical connector according to claim 4, It is characterized in that Among the connection terminals in the Hth row and the adjacent H+1th row, one of the connection terminals located in the kth column and the k+1th column is configured as the first floating terminal, and the remaining three connection terminals are configured as the voltage signal terminals; The first floating terminal is located in the same row as the voltage signal terminal with the smallest collected voltage value, or is located in the same row as the voltage signal terminal with the largest collected voltage value.

6. The electrical connector according to claim 4, It is characterized in that At least M first floating terminals are provided, and at least one first floating terminal is provided in each row of connection terminals.

7. The electrical connector according to claim 6, It is characterized in that In any row of connection terminals, the first floating terminals and the voltage signal terminals are arranged at intervals.

8. The electrical connector according to claim 7, It is characterized in that In the Hth row of connection terminals and the adjacent H+1th row of connection terminals, a column of the floating terminals and a column of the voltage signal terminals are arranged at intervals, and the voltage values ​​collected by the voltage signal terminals located in the kth column and the k+2th column are V(H, k), V(H+1, k), V(H, k+2) and V(H+1, k+2), respectively, where V(H, k)≤V(H+1, k)≤V(H, k+2)≤V(H+1, k+2), 1≤H≤M-1, 1≤k≤N-2.

9. The electrical connector according to any one of claims 1 to 8, It is characterized in that The M rows of connection terminals further include at least one ground signal terminal, which is located at a first end of the M rows of connection terminals and is configured to be adjacent to a voltage signal terminal with a minimum collected voltage value.

10. The electrical connector according to claim 9, It is characterized in that The M rows of connection terminals further include at least one power supply terminal for passing current, and the at least one power supply terminal is located at the second end of the M rows of connection terminals and is configured to be adjacent to the voltage signal terminal with the largest collected voltage value.

11. The electrical connector according to claim 10, It is characterized in that The M rows of connection terminals further include a plurality of second floating terminals, wherein the second floating terminals are arranged between the ground signal terminal and the voltage signal terminal, and / or between the voltage signal terminal and the power supply terminal.

12. A battery pack, It is characterized in that It comprises a battery module, a battery management system and an electrical connector as described in any one of claims 1 to 11, wherein the electrical connector is electrically connected to the battery module.

13. An electronic device, It is characterized in that Comprising the battery pack as claimed in claim 12.

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