Wireless intelligent battery box top cover assembly for engineering machinery

Abstract

The utility model discloses a wireless intelligent battery box top cover assembly for engineering machinery, and belongs to the technical field of battery box top covers. Comprising a battery pack and a top cover arranged on the battery pack, the top cover comprises a data storage assembly, a wireless transceiving assembly and a control assembly, the battery pack comprises a plurality of single cells and chips arranged in the single cells, and the chips are used for collecting data in the single cells and sending the data to the wireless transceiving assembly of the top cover. The data storage assembly stores acquired data, the wireless transceiving assembly is used for sending the data to the BMS master controller, and the control assembly is matched with the wireless transceiving assembly to send a control instruction to the chip to control the single battery cells. Communication with the BMS master controller is established through the wireless receiving and transmitting assembly, no BMS master controller needs to be arranged in each battery pack, the whole battery pack uses one master BMS master controller, the cost is greatly reduced, a large number of wire harness connectors are not needed through wireless communication, and the assembly process and efficiency are optimized.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery box top covers, in particular to a wireless intelligent battery box top cover component for engineering machinery. Background Art

[0002] With the development of new energy technologies, compared with passenger cars, the use environment and working conditions of construction machinery are more severe, which makes the wiring harness and its connectors in the battery box more prone to failure and malfunction. Replacing wired connectors with wireless methods can improve the safety and reliability of vehicle-mounted power batteries. In addition, the layout space from the battery box to the battery fixing bracket of construction machinery is limited, and the battery-related wiring harness is more than that of passenger cars, resulting in a large number of wiring harness connectors that are difficult to install, high installation labor costs, and low production efficiency.

[0003] The existing battery top cover structure is mainly composed of a top cover plate, positive and negative poles, explosion-proof devices, injection holes, etc. The existing battery top cover does not have a data storage function, and is not convenient for carrying a "battery passport" function; and there are too many connectors such as wiring harnesses from the battery cell to the module and then to the battery box top cover, which makes the assembly complicated and the assembly cost high. In addition, the operating conditions of construction machinery are much worse than those of passenger cars, and the wiring harnesses and connectors in the battery box are more prone to failure and malfunction; the wiring harnesses and connectors in the battery take up space, reducing the volume energy density of the entire battery pack. Utility Model Content

[0004] 1. Technical problems to be solved by the utility model

[0005] The utility model aims to solve the problem that the existing battery top cover structure has a single function and cannot meet the intelligent demand.

[0006] 2. Technical solution

[0007] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0008] The utility model discloses a wireless intelligent battery box top cover component for engineering machinery, comprising a battery pack and a top cover arranged on the battery pack, the top cover comprising a data storage component, a wireless transceiver component and a control component, the battery pack comprising a plurality of single cells and a chip arranged in the single cells, the chip being used to collect data in the single cells and send the data to the wireless transceiver component of the top cover, the data storage component storing the acquired data, the wireless transceiver component being used to send the data to the BMS master control, and the control component cooperating with the wireless transceiver component to send a control instruction to the chip to control the single cells.

[0009] Preferably, a near-field antenna 1 is also provided in the battery pack, and the near-field antenna 1 is used to enhance the wireless signal strength between the chip and the wireless transceiver component.

[0010] Preferably, a plurality of the battery packs are arranged in a power battery box, and a near-field antenna 2 is also provided in the power battery box, and the near-field antenna 2 is used to enhance the wireless signal strength between the BMS master control and the wireless transceiver component.

[0011] Preferably, the chip is an acquisition board chip including data acquisition, wireless signal reception and transmission, equalization function, and anti-tensile vibration reinforcement plate.

[0012] 3. Beneficial effects

[0013] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0014] The utility model discloses a wireless intelligent battery box top cover assembly for engineering machinery, comprising a battery pack and a top cover arranged on the battery pack, the top cover comprising a data storage assembly, a wireless transceiver assembly and a control assembly, the battery pack comprising a plurality of single cells and a chip arranged in the single cells, the chip being used to collect data in the single cells and send it to the wireless transceiver assembly of the top cover, the data storage assembly storing the acquired data, the wireless transceiver assembly being used to send the data to the BMS master control, the control assembly and the wireless transceiver assembly cooperating to send control instructions to the chip to control the single cells. The top cover 5 integrates the data storage assembly 6, the wireless transceiver assembly 7 and the control assembly 8, and establishes communication with the BMS master control 11 through the wireless transceiver assembly 7, so that each battery pack no longer needs to be provided with a BMS master control 11, but the entire battery pack uses a total BMS master control 11, which greatly reduces the cost, and through wireless communication, a large number of wiring harness connectors are not required, the assembly process and efficiency are optimized, and the arrangement space reserved for the wiring harness connectors in the battery pack is removed, which can improve the volume energy density of the entire battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a wireless intelligent battery box top cover assembly for engineering machinery of the utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of a wireless intelligent battery box top cover assembly for engineering machinery of the utility model. Figure 2 .

[0017] Explanation of the symbols in the schematic diagram:

[0018] 1. Chip; 2. Single cell; 3. Near-field antenna 1; 4. Battery pack; 5. Top cover; 6. Data storage component; 7. Wireless transceiver component; 8. Control component; 9. Power battery box; 10. Near-field antenna 2; 11. BMS master control. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0022] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0023] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] Example 1

[0026] See attached Figure 1 , Figure 2 , a wireless intelligent battery box top cover assembly for engineering machinery in this embodiment includes a battery pack 4 and a top cover 5 arranged on the battery pack 4, the top cover 5 includes a data storage assembly 6, a wireless transceiver assembly 7 and a control assembly 8, the battery pack 4 includes a plurality of single cells 2 and a chip 1 arranged in the single cell 2, the chip 1 is used to collect data in the single cell 2 and send it to the wireless transceiver assembly 7 of the top cover 5, the data storage assembly 6 saves the acquired data, the wireless transceiver assembly 7 is used to send the data to the BMS master control 11, and the control assembly 8 cooperates with the wireless transceiver assembly 7 to send control instructions to the chip 1 to control the single cell 2. The top cover 5 of the present embodiment integrates a data storage component 6, a wireless transceiver component 7 and a control component 8, and establishes communication with the BMS master control 11 through the wireless transceiver component 7. It is no longer necessary to have a BMS master control 11 in each battery pack, but the entire battery pack uses a total BMS master control 11, which greatly reduces the cost. In addition, wireless communication does not require a large number of wiring harness connectors, optimizes the assembly process and efficiency, and removes the layout space reserved for wiring harness connectors in the battery pack, which can improve the volume energy density of the entire battery pack.

[0027] The battery pack 4 is also provided with a near-field antenna 1 3, which is used to enhance the wireless signal strength between the chip 1 and the wireless transceiver component 7. Several battery packs 4 are arranged in a power battery box 9, and the power battery box 9 is also provided with a near-field antenna 2 10, which is used to enhance the wireless signal strength between the BMS master control 11 and the wireless transceiver component 7. The near-field antenna 1 3 and the near-field antenna 2 10 are provided to further ensure the stability of wireless signal transmission.

[0028] The chip 1 is a data acquisition chip that includes data acquisition, wireless signal transmission and reception, equalization function, and tensile vibration reinforcement plate. The data that can be collected by the chip 1 include but are not limited to: the temperature, voltage, current, impedance, manufacturer, type, related protocol encoding method, cooling method, rated capacity, rated voltage, and maximum allowed charge and discharge current of the battery cell. The chip has a tensile vibration reinforcement plate that is reinforced and fixed on the battery cell shell.

[0029] The full life cycle data (voltage, current, temperature, balancing operation, number of charge and discharge cycles, etc.) of each single battery cell 2 is recorded in the data storage component 6 on the top cover 5 for external reading, which is beneficial to battery inventory management, cascade utilization, battery maintenance, battery recycling, as well as big data collection and artificial intelligence prediction of battery performance.

[0030] All battery packs 4 in the power battery box 9 communicate data stably with the BMS master control 11 through the top cover 5 carried by itself in a wireless communication mode, under the signal enhancement and anti-interference protection of the near-field antenna 10. The BMS master control 11 processes and calculates these data and returns the further obtained data of each battery cell and related control instructions, and transmits and stores these data to the top cover 5. The separate BMS master control in each battery box in the engineering machinery vehicle battery system is cancelled, and the entire battery pack is equipped with a total BMS master control (Battery management system total battery control unit, Battery management system total battery control unit hereinafter referred to as TBMU).

[0031] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A wireless intelligent battery box top cover assembly for engineering machinery, characterized in that: The invention comprises a battery pack (4) and a top cover (5) arranged on the battery pack (4), wherein the top cover (5) comprises a data storage component (6), a wireless transceiver component (7) and a control component (8), wherein the battery pack (4) comprises a plurality of single cells (2) and a chip (1) arranged in the single cells (2), wherein the chip (1) is used to collect data in the single cells (2) and send the data to the wireless transceiver component (7) of the top cover (5), wherein the data storage component (6) stores the acquired data, wherein the wireless transceiver component (7) is used to send the data to a BMS master control (11), and wherein the control component (8) cooperates with the wireless transceiver component (7) to send control instructions to the chip (1) to control the single cells (2).

2. The wireless intelligent battery box top cover assembly for engineering machinery according to claim 1, characterized in that: A near-field antenna (3) is also provided in the battery pack (4), and the near-field antenna (3) is used to enhance the strength of the wireless signal between the chip (1) and the wireless transceiver component (7).

3. The wireless intelligent battery box top cover assembly for engineering machinery according to claim 1, characterized in that: A plurality of the battery packs (4) are arranged in a power battery box (9), and a near-field antenna 2 (10) is also arranged in the power battery box (9). The near-field antenna 2 (10) is used to enhance the wireless signal strength between the BMS master control (11) and the wireless transceiver component (7).

4. The wireless intelligent battery box top cover assembly for engineering machinery according to claim 1, characterized in that: The chip (1) is a collection board chip including data collection, wireless signal reception and transmission, equalization execution function, and an anti-tensile vibration reinforcement plate.

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