Circuit board plugging assembly

Abstract

The utility model relates to the technical field of energy storage equipment, in particular to a circuit board plug-in assembly, which comprises a battery management control board and a power board, and is characterized in that the battery management control board comprises a first board body, a battery management circuit, a first conductive connection piece, a second conductive connection piece and a third conductive connection piece; the first guide connecting piece, the second guide connecting piece and the battery management circuit are all arranged on the first board body, the first guide connecting piece and the second guide connecting piece are both electrically connected with the battery management circuit, the second guide connecting piece is electrically connected with the third guide connecting piece, and the power board comprises a second board body, an inverter circuit, a first guide plug-in unit, a second guide plug-in unit, a resistor and a third guide plug-in unit. The inverter circuit, the first guide plug-in unit, the second guide plug-in unit, the resistor and the third guide plug-in unit are all arranged on the second plate body, and the two ends of the resistor are electrically connected with the second guide plug-in unit and the third guide plug-in unit respectively. Through the above structure, the sparking phenomenon of the circuit board plug-in assembly can be reduced, and the safety performance of the circuit board plug-in assembly is improved.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and in particular to a circuit board plug-in assembly. Background Technology

[0002] In existing technology, energy storage devices include a battery management control board and a power board. The power board is mounted on the battery management control board to convert the direct current (DC) output from the battery management control board into alternating current (AC), enabling the energy storage device to supply power to external devices. The battery management control board includes a positive terminal connector, a negative terminal connector, and a battery management circuit. Both the positive and negative terminal connectors are mounted on the battery management control board. The battery management circuit includes battery modules, and the positive and negative terminal connectors are connected to the positive and negative terminals of the battery modules, respectively. The power board includes a first connector, a second connector, and an inverter circuit. The power board includes a capacitor. When the battery management control board and the power board are connected, the first connector is inserted into the positive terminal connector, and the second connector is inserted into the negative terminal connector. The positive terminal connector, the first connector, the battery management circuit, the second connector, the negative connector, and the inverter circuit form a series circuit in sequence.

[0003] When the secondary power component is connected to the battery management control board, the presence of current in the power board's capacitors can cause arcing when the first connector is inserted into the positive terminal and the second connector is inserted into the negative terminal, which can easily lead to electric shock and fire hazards. Utility Model Content

[0004] This utility model provides a circuit board plug-in assembly, which has good safety performance.

[0005] To solve the above-mentioned technical problems, the present invention provides a circuit board plug-in assembly, including a battery management control board, comprising a first board body, a battery management circuit, a first conductive member, a second conductive member, and a third conductive member. The first conductive member, the second conductive member, and the battery management circuit are all disposed on the first board body. The first conductive member and the second conductive member are both electrically connected to the battery management circuit, and the second conductive member is electrically connected to the third conductive member.

[0006] A power board includes a second board body, an inverter circuit, a first connector, a second connector, a resistor, and a third connector. The inverter circuit, the first connector, the second connector, the resistor, and the third connector are all disposed on the second board body. The two ends of the resistor are electrically connected to the second connector and the third connector, respectively. During the insertion of the power board into the battery management control board, when the first connector is inserted into the first position of the first connector and the third connector is inserted into the second position of the third connector, the second connector and the second connector are in a separated state. When the first connector is inserted into the third position of the first connector and the third connector is inserted into the fourth position of the third connector, the second connector and the second connector are inserted. The depth of the first connector inserted into the first position of the first connector is greater than the depth of the first connector inserted into the second position of the first connector, and the depth of the second connector inserted into the second position of the second connector is greater than the depth of the second connector inserted into the fourth position of the second connector.

[0007] Optionally, the first guide, the second guide, and the third guide are arranged parallel to each other and spaced apart. Along the insertion direction of the third guide, the first guide and the second guide both protrude from the third guide. The first plug-in, the second plug-in, and the third plug-in are arranged parallel to each other and spaced apart. Along the insertion direction of the third plug-in, the first plug-in, the second plug-in, and the third plug-in are flush.

[0008] Optionally, the first guide, the second guide, and the third guide are arranged parallel to each other and spaced apart, and are flush with each other along the insertion direction of the third guide; the first guide plug, the second guide plug, and the third guide plug are arranged parallel to each other and spaced apart, and both the first guide plug and the second guide plug protrude from the third guide plug along the insertion direction of the third guide plug.

[0009] Optionally, the first guide member includes a first main body, a first spring arm, and a second spring arm. The first main body is electrically connected to the battery management circuit. The first spring arm and the second spring arm are spaced apart from each other on the first main body, and there is a first gap between the first spring arm and the second spring arm. The first gap is used for the insertion of the first guide plug, so that the first spring arm and the second spring arm jointly clamp the first guide plug.

[0010] Optionally, the first spring arm is tilted toward the second spring arm so that the spacing of the first gap gradually increases in the direction of the first spring arm toward the first main body; and / or, the second spring arm is tilted toward the first spring arm so that the spacing of the first gap gradually increases in the direction of the second spring arm toward the first main body.

[0011] Optionally, the first guide member further includes a first guide portion disposed on the first spring arm, the first spring arm being used to guide the first guide plug into the first gap.

[0012] Optionally, the first guide member further includes a second guide portion disposed on the second spring arm, and the first guide portion and the second guide portion are disposed opposite to each other, the second spring arm being used to guide the first guide plug to be inserted into the first gap.

[0013] Optionally, the first guide member has a Y-shaped structure; and / or, the second guide member has a Y-shaped structure; and / or, the third guide member has a Y-shaped structure.

[0014] Optionally, the second guide member includes a second main body, a third spring arm, and a fourth spring arm. The second main body is connected to the negative terminal of the battery assembly. The third spring arm and the fourth spring arm are spaced apart from each other on the second main body, and there is a second gap between the third spring arm and the fourth spring arm. The second gap is used for the insertion of the second guide plug, so that the third spring arm and the fourth spring arm together clamp the second guide plug.

[0015] Optionally, the first guide plug-in has a type-1 structure; and / or, the second guide plug-in has a type-1 structure; and / or, the third guide plug-in has a type-1 structure.

[0016] The beneficial effects of this application embodiment are as follows: During the process of the power board being inserted into the battery management control board, when the first connector is inserted into the first position of the first connector and the third connector is inserted into the second position of the third connector, the second connector and the second connector are in a separated state. The battery management control board, the first connector, the first connector, the inverter circuit, the second connector, the resistor, the third connector, and the third connector are connected in series to form a first closed loop. When the first connector is inserted into the third position of the first connector and the third connector is inserted into the fourth position of the third connector, the second connector and the second connector are inserted. The battery management control board, the first connector, the first connector, the inverter circuit, the second connector, and the second connector are connected in series to form a second closed loop. When the power board is inserted into the battery management control board, the current of the battery management control board is first consumed by the current stored in the capacitor. Since the first closed loop has a resistor in series, the current flowing through the first closed loop is smaller than the current flowing through the second closed loop, thereby reducing the occurrence of arcing in the closed loop and achieving the effect of protecting the circuit. Once the capacitor's current is depleted, the circuit board connector switches to a second closed loop. When the circuit board connector is in the second closed loop, since the current previously stored in the capacitor has been depleted, arcing will no longer occur, achieving a pre-charging effect and further enhancing the safety performance of the circuit board connector. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0018] Figure 1 This is a view of the circuit board plug-in assembly provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the circuit board plug-in assembly provided by this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the battery management control board provided by this utility model;

[0021] Figure 4 This is a schematic diagram of the circuit board plug-in assembly provided by this utility model to maintain a first closed loop;

[0022] Figure 5 This is a schematic diagram of the circuit board plug-in assembly provided by this utility model to maintain a second closed loop. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0025] Please see Figures 1-2 The circuit board plug-in assembly 100 includes a battery management control board 10 and a power board 20. The power board 20 is plugged into the battery management control board 10 to convert the DC power output by the battery management control board 10 into AC power, so that the circuit board plug-in assembly 100 supplies power to the external electrical device 200.

[0026] For the battery management control board 10 mentioned above, please refer to... Figure 2 The battery management control board 10 includes a first board body 12, a battery management circuit (not shown), a first conductive member 14, a second conductive member 15, and a third conductive member 16. The first conductive member 14, the second conductive member 15, and the battery management circuit are all disposed on the first board body 12, and the first conductive member 14, the second conductive member 15, and the third conductive member 16 are arranged parallel and spaced apart. The first conductive member 14 is electrically connected to the positive terminal of the battery management circuit, and the second conductive member 15 and the third conductive member 16 are both electrically connected to the negative terminal of the battery management circuit. The first conductive member 14, the second conductive member 15, and the third conductive member 16 are all used to connect to the power board 20 so that the battery management control board 10 supplies power to the power board 20.

[0027] The battery management circuit includes a battery assembly 11, which has the ability to store electrical energy, such as a lithium battery.

[0028] For the first guide 14 mentioned above, please refer to Figure 3The first conductive member 14 is made of a conductive material, such as copper or iron, and has a Y-shaped structure. Specifically, the first conductive member 14 includes a first main body 141, a first spring arm 142, and a second spring arm 143. The first main body 141 is electrically connected to the positive terminal of the battery management circuit. The first spring arm 142 and the second spring arm 143 are spaced apart from each other on the first main body 141, and there is a first gap 14a between the first spring arm 142 and the second spring arm 143. The first gap 14a is used for the insertion of the first guide plug 23, so that the first spring arm 142 and the second spring arm 143 together hold the first guide plug 23.

[0029] The first spring arm 142 is tilted toward the second spring arm 143, so that the distance between the first gaps 14a gradually increases in the direction of the first main body 141. The second spring arm 143 is tilted toward the first spring arm 142, so that the distance between the first gaps 14a gradually increases in the direction of the second spring arm 143 towards the first main body 141.

[0030] The first guide member 14 also includes a first guide portion 144 and a second guide portion 145. The first guide portion 144 is disposed on the first spring arm 142, and the second guide portion 145 is disposed on the second spring arm 143. The first guide portion 144 and the second guide portion 145 are disposed opposite to each other. The first spring arm 142 and the second spring arm 143 are used to guide the first guide plug 23 to be inserted into the first gap 14a.

[0031] For the second guide 15 mentioned above, please refer to Figure 3 The second conductive member 15 is made of a conductive material, such as copper or iron, and has a Y-shaped structure. Specifically, the second conductive member 15 includes a second main body 151, a third spring arm 152, and a fourth spring arm 153. The second main body 151 is electrically connected to the negative terminal of the battery management circuit. The third spring arm 152 and the fourth spring arm 153 are spaced apart from each other on the second main body 151, and a second gap 15a is provided between the third spring arm 152 and the fourth spring arm 153. The second gap 15a is used for the insertion of the second conductive plug 24, so that the third spring arm 152 and the fourth spring arm 153 together hold the second conductive plug 24. In addition, the second conductive member 15 is provided with a guide structure for guiding the insertion of the second conductive plug 24 into the second conductive member 15.

[0032] For the third connector 16 mentioned above, please refer to... Figure 3The third conductive member 16 is made of a conductive material, such as copper or iron, and has a Y-shaped structure. Specifically, the third conductive member 16 includes a third main body 161, a fifth spring arm 162, and a sixth spring arm 163. The third main body 161 is electrically connected to the negative terminal of the battery management circuit. The fifth spring arm 162 and the sixth spring arm 163 are spaced apart from each other on the third main body 161, and a third gap 16a is provided between the fifth spring arm 162 and the sixth spring arm 163 for the insertion of the third conductive plug 25, so that the fifth spring arm 162 and the sixth spring arm 163 together hold the third conductive plug 25. In addition, the third conductive member 16 is provided with a guide structure for guiding the insertion of the third conductive plug 25 into the third conductive member 16.

[0033] For the power board 20 mentioned above, please refer to... Figure 1 The power board 20 includes a second board body 21, an inverter circuit (not shown), a resistor 22, a first conductive plug 23, a second conductive plug 24, and a third conductive plug 25. The first conductive plug 23, the second conductive plug 24, and the third conductive plug 25 are all of a single type and are made of conductive materials, such as iron or copper. The inverter circuit, the first conductive plug 23, the second conductive plug 24, the resistor 22, and the third conductive plug 25 are all disposed on the second board body 21. The first conductive plug 23, the second conductive plug 24, and the third conductive plug 25 are arranged parallel and spaced apart. The two ends of the resistor 22 are electrically connected to the second conductive plug 24 and the third conductive plug 25, respectively. In addition, the power board 20 typically includes capacitors, which can hold a portion of the charge. Capacitors play numerous roles in the power board 20, such as power filtering, signal filtering, signal coupling, resonance, filtering, compensation, charging and discharging, energy storage, and DC blocking.

[0034] During the process of power board 20 being inserted into battery management control board 10, when first connector 23 is inserted into the first position of first connector 14 and third connector 25 is inserted into the second position of third connector 16, at this time, first connector 23 and first connector 14 are conductive, third connector 25 and third connector 16 are also conductive, and second connector 15 and second connector 24 are in a separated state, that is, second connector 15 and second connector 24 are not conductive. Battery management control board 10, first connector 14, first connector 23, inverter circuit, second connector 24, resistor 22, third connector 25 and third connector 16 are connected in series to form a first closed loop.

[0035] When the first connector 23 is inserted into the third position of the first connector 14, and the third connector 25 is inserted into the fourth position of the third connector 16, the second connector 15 is inserted into the second connector 24. That is, the first connector 23 and the first connector 14, the second connector 24 and the second connector 15, and the third connector 25 and the third connector 16 are all conductive. At this time, the battery management control board 10, the first connector 14, the first connector 23, the inverter circuit, the second connector 24, and the second connector 15 are connected in series to form a second closed loop.

[0036] When the power board 20 is plugged into the battery management control board 10, the current of the battery management control board 10 is first consumed by the current stored in the capacitor. Because the first closed loop has a resistor 22 connected in series, the current flowing through the first closed loop is smaller than the current flowing through the second closed loop, thereby reducing the possibility of arcing in the closed loop and achieving the effect of circuit protection. Once the current in the capacitor is depleted, the circuit board plug-in assembly 100 switches to the second closed loop. When the circuit board plug-in assembly 100 is in the second closed loop return state, since the current originally stored in the capacitor has been consumed, arcing will no longer occur, achieving a pre-charging effect and further improving the safety performance of the circuit board plug-in assembly 100.

[0037] It should be noted that the depth of the first guide plug 23 inserted into the first guide member 14 at the first position is greater than the depth of the first guide plug 23 inserted into the first guide member 14 at the second position, and the depth of the second guide plug 24 inserted into the second guide member 15 at the second position is greater than the depth of the second guide plug 24 inserted into the second guide member 15 at the fourth position.

[0038] In some embodiments, along the insertion direction of the third guide 16, both the first guide 14 and the second guide 15 protrude from the third guide 16, and along the insertion direction of the third guide plug 25, the first guide plug 23, the second guide plug 24, and the third guide plug 25 are flush. When the power board 20 is plugged into the battery management control board 10, the first guide plug 23 is plugged into the first guide 14, and the third guide plug 25 is plugged into the third guide 16, so that the circuit board plug assembly 100 first forms a first closed loop. When the power board 20 is plugged into the battery management control board 10, until the second guide plug 24 is plugged into the second guide 15, the circuit board plug assembly 100 forms a second closed loop.

[0039] In some other embodiments, along the insertion direction of the third guide 16, the first guide 14, the second guide 15, and the third guide 16 are flush, and along the insertion direction of the third guide plug 25, the first guide plug 23 and the second guide plug 24 both protrude from the third guide plug 25. When the power board 20 is connected to the battery management control board 10, the first guide plug 23 is connected to the first guide 14, and the third guide plug 25 is connected to the third guide 16, so that the circuit board insertion assembly 100 first forms a first closed loop. As the power board 20 continues to be connected to the battery management control board 10, until the second guide plug 24 is connected to the second guide 15, the circuit board insertion assembly 100 forms a second closed loop.

[0040] In this embodiment of the application, a circuit board plug-in assembly 100 is provided. The circuit board plug-in assembly 100 includes a battery management control board 10 and a power board 20. The battery management control board 10 includes a first board body 12, a battery management circuit, a first conductive member 14, a second conductive member 15, and a third conductive member 16. The first conductive member 14, the second conductive member 15, and the battery management circuit are all disposed on the first board body 12. The first conductive member 14 and the second conductive member 15 are both electrically connected to the battery management circuit. The second conductive member 15 is electrically connected to the third conductive member 16. The power board 20 includes a second board body 21, an inverter circuit, a first conductive member 23, a second conductive member 24, a resistor 22, and a third conductive member 25. The inverter circuit, the first conductive member 23, the second conductive member 24, the resistor 22, and the third conductive member 25 are all disposed on the second board body 21. The two ends of the resistor 22 are electrically connected to the second conductive member 24 and the third conductive member 25, respectively. During the process of power board 20 being inserted into battery management control board 10, when first connector 23 is inserted into the first position of first connector 14 and third connector 25 is inserted into the second position of third connector 16, second connector 15 and second connector 24 are separated. Battery management control board 10, first connector 14, first connector 23, inverter circuit, second connector 24, resistor 22, third connector 25 and third connector 16 are connected in series to form a first closed loop. When first connector 23 is inserted into the third position of first connector 14 and third connector 25 is inserted into the fourth position of third connector 16, second connector 15 and second connector 24 are connected. Battery management control board 10, first connector 14, first connector 23, inverter circuit, second connector 24 and second connector 15 are connected in series to form a second closed loop. When the power board 20 is plugged into the battery management control board 10, the current of the battery management control board 10 is first consumed by the current stored in the capacitor. Because the first closed loop has a resistor 22 connected in series, the current flowing through the first closed loop is smaller than the current flowing through the second closed loop, thereby reducing the possibility of arcing in the closed loop and achieving the effect of circuit protection. Once the current in the capacitor is depleted, the circuit board plug-in assembly 100 switches to the second closed loop. When the circuit board plug-in assembly 100 is in the second closed loop return state, since the current originally stored in the capacitor has been consumed, arcing will no longer occur, achieving a pre-charging effect and further improving the safety performance of the circuit board plug-in assembly 100.

[0041] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A circuit board connector assembly, characterized by The battery management control board comprises a first board body, a battery management circuit, a first lead connector, a second lead connector and a third lead connector, the first lead connector, the second lead connector and the battery management circuit are arranged on the first board body, the first lead connector and the second lead connector are electrically connected with the battery management circuit, and the second lead connector is electrically connected with the third lead connector. The power board comprises a second board body, an inverter circuit, a first lead connector, a second lead connector, a resistor and a third lead connector, the inverter circuit, the first lead connector, the second lead connector, the resistor and the third lead connector are arranged on the second board body, and the resistor is electrically connected with the second lead connector and the third lead connector. During the plugging of the power board into the battery management control board, when the first lead connector is plugged into the first position of the first lead connector and the third lead connector is plugged into the second position of the third lead connector, the second lead connector is separated from the second lead connector. When the first lead connector is plugged into the third position of the first lead connector and the third lead connector is plugged into the fourth position of the third lead connector, the second lead connector is plugged into the second lead connector. The depth of the first lead connector plugged into the first position of the first lead connector is greater than the depth of the first lead connector plugged into the second position of the first lead connector, and the depth of the second lead connector plugged into the second position of the second lead connector is greater than the depth of the second lead connector plugged into the fourth position of the second lead connector.

2. The circuit board plugging assembly according to claim 1, wherein the first lead connector, the second lead connector and the third lead connector are arranged in parallel and at intervals, and along the plugging direction of the third lead connector, the first lead connector and the second lead connector protrude from the third lead connector. The first lead connector, the second lead connector and the third lead connector are arranged in parallel and at intervals, and along the plugging direction of the third lead connector, the first lead connector, the second lead connector and the third lead connector are flush.

3. The circuit board plugging assembly according to claim 2, wherein the first lead connector, the second lead connector and the third lead connector are arranged in parallel and at intervals, and along the plugging direction of the third lead connector, the first lead connector, the second lead connector and the third lead connector are flush. The first lead connector, the second lead connector and the third lead connector are arranged in parallel and at intervals, and along the plugging direction of the third lead connector, the first lead connector and the second lead connector protrude from the third lead connector.

4. The circuit board plugging assembly according to claim 1, wherein ​ ​ ​ The first lead connector includes a first body part, a first elastic arm and a second elastic arm. The first body part is electrically connected to the battery management circuit. The first elastic arm and the second elastic arm are arranged at intervals on the first body part, and the first elastic arm and the second elastic arm have a first gap therebetween. The first gap is used for inserting the first lead connector so that the first elastic arm and the second elastic arm jointly hold the first lead connector.

5. The circuit board connector assembly of claim 4, wherein: The first elastic arm is inclined toward the second elastic arm, so that the first elastic arm is inclined toward the first body part, and the first gap gradually increases in size; and / or, the second elastic arm is inclined toward the first elastic arm, so that the second elastic arm is inclined toward the first body part, and the first gap gradually increases in size.

6. The circuit board connector assembly of claim 4, wherein: The first lead connector further includes a first guide part arranged on the first elastic arm. The first elastic arm is used to guide the first lead connector to be inserted into the first gap.

7. The circuit board connector assembly of claim 6, wherein: The first lead connector further includes a second guide part arranged on the second elastic arm. The first guide part and the second guide part are oppositely arranged. The second elastic arm is used to guide the first lead connector to be inserted into the first gap.

8. The circuit board connector assembly of claim 1, wherein: The first lead connector has a Y-shaped structure; and / or, the second lead connector has a Y-shaped structure; and / or, the third lead connector has a Y-shaped structure.

9. The circuit board connector assembly of claim 1, wherein: The second lead connector includes a second body part, a third elastic arm and a fourth elastic arm. The second body part is connected to the battery management circuit. The third elastic arm and the fourth elastic arm are arranged at intervals on the second body part, and the third elastic arm and the fourth elastic arm have a second gap therebetween. The second gap is used for inserting the second lead connector so that the third elastic arm and the fourth elastic arm jointly hold the second lead connector.

10. The circuit board connector assembly of claim 1, wherein: The first lead connector has a Y-shaped structure; and / or, the second lead connector has a Y-shaped structure; and / or, the third lead connector has a Y-shaped structure.

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