Start-stop battery

Abstract

The utility model belongs to the technical field of new energy, and discloses a start-stop battery which comprises a battery box, a power supply assembly and an information assembly, the battery box comprises a cover body and a shell, the shell and the cover body are matched to form a containing space, the structure is simple, the power supply assembly comprises a battery module and two high-voltage connectors, the battery module is arranged in the containing space, and the information assembly is arranged in the containing space. The rated voltage of the battery module is not less than 24.8 V, the electric quantity is not less than 4.836 kWh, so that the continuous charging and discharging current can reach 325A, the instantaneous charging and discharging current can reach 1950A, the long-endurance use requirement of the parking battery and the instantaneous large-current use requirement of the start-stop battery are met at the same time, the high-voltage connector is integrated on the cover body, and the high-voltage connector is integrated on the cover body. Wherein one high-voltage connector is connected with the positive electrode of the battery module, the other high-voltage connector is connected with the negative electrode of the battery module so as to output electric energy to the outside, and the information assembly is used for collecting and displaying voltage information and temperature information of the battery module so as to observe the state of the power supply assembly in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy, in particular to a startup battery. Background Art

[0002] With growing global environmental awareness, new energy vehicles are gaining increasing attention and favor. In commercial vehicles like urban buses and logistics delivery vehicles, which frequently start and stop, start-stop batteries can better meet the frequent charging and discharging requirements and withstand high current surges. These batteries are widely used not only in commercial vehicles but also in some specialized vehicles and engineering vehicles to improve overall vehicle performance and energy efficiency.

[0003] However, with the continuous changes in market demand, commercial vehicle drivers have higher requirements for the quality of life when parking, and the use of electrical appliances such as parking air conditioners, refrigerators, and microwave ovens has increased, which requires large-capacity, long-lasting parking batteries to provide power support. The continuous development of the RV market has also led to a continuous increase in demand for parking batteries to meet the various power needs of travelers during parking.

[0004] Therefore, there is an urgent need for a battery that can start, stop and park the vehicle in one to meet the needs of frequent starting and stopping and long driving range. Utility Model Content

[0005] The purpose of the utility model is to provide a starting battery with a simple structure, which can meet the needs of frequent starting and stopping and long battery life.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A startup battery, comprising:

[0008] A battery box, comprising a cover and a shell, wherein the shell and the cover cooperate to form a receiving space;

[0009] A power supply assembly, comprising a battery module and two high-voltage connectors, the battery module being disposed in the accommodation space, the battery module having a rated voltage of not less than 24.8V and a charge capacity of not less than 4.836kWh, the high-voltage connectors being integrated into the cover, one of the high-voltage connectors being connected to the positive electrode of the battery module, and the other being connected to the negative electrode of the battery module;

[0010] An information component is used to collect and display voltage information and temperature information of the battery module.

[0011] Preferably, the battery module includes two battery packs connected in series, and the battery pack includes a plurality of sodium ion cells with a capacity of 65Ah.

[0012] Preferably, the battery pack includes two end plates, and two adjacent sodium ion batteries in the battery pack are bonded together, and the sodium ion batteries close to the end plates are bundled and fixed to the adjacent end plates.

[0013] Preferably, the power supply assembly further includes two cables, one of which is connected to the positive pole of the battery module and connected to one of the high-voltage connectors, and the other is connected to the negative pole of the battery module and connected to the other high-voltage connector.

[0014] Preferably, the power supply component also includes a bus, the bus including a first guide bar and a second guide bar, the first guide bar is electrically connected to several of the sodium ion battery cells in one of the battery packs, the second guide bar is electrically connected to several of the sodium ion battery cells in another battery pack, and the negative pole of the first guide bar is electrically connected to the positive pole of the second guide bar.

[0015] Preferably, the information component includes a collection harness, a control board and a display screen. The collection harness and the control board are both arranged in the accommodating space. The cover body is provided with a display slot. The display screen is sealed in the display slot. One end of the collection harness is connected to multiple fixed positions of the first guide bar and the second guide bar, and the other end is connected to the control board. The fixed positions correspond one-to-one to the sodium ion battery cells. The control board is connected to the display screen.

[0016] Preferably, the information component further includes a low-voltage connector, the cover body is provided with a low-voltage installation groove, the low-voltage connector is sealed and installed in the low-voltage installation groove, and the low-voltage connector is connected to the control board.

[0017] Preferably, a protective cover is further included, which is arranged in the accommodating space and located between the battery module and the cover body, and covers the battery module.

[0018] Preferably, a first folded edge is circumferentially provided at the open end of the cover body, and a second folded edge is circumferentially provided at the open end of the shell body, a sealing gasket is sandwiched between the first folded edge and the second folded edge, the top of the sealing gasket circumferentially abuts the first folded edge, and the bottom of the sealing gasket circumferentially abuts the second folded edge, and a plurality of bolts pass through the first folded edge, the sealing gasket and the second folded edge in sequence and are fixed.

[0019] Preferably, a one-button start-stop button is sealed and mounted on the cover body, the one-button start-stop button is connected to the main control of the battery module, and the one-button start-stop button is configured to control the discharge of the battery module.

[0020] Beneficial effects of the utility model:

[0021] The utility model provides a parking battery, including a battery box, a power supply component and an information component. The battery box includes a cover and a shell. The shell and the cover cooperate to form a storage space with a simple structure. The power supply component includes a battery module and two high-voltage connectors. The battery module is arranged in the storage space. The rated voltage of the battery module is not less than 24.8V, and the charge capacity is not less than 4.836kWh to ensure that the continuous charging and discharging current can reach 325A, and the instantaneous charging and discharging current can reach 1950A, thereby meeting the long-life use requirements of the parking battery and the instantaneous high-current use requirements of the start-stop battery. The high-voltage connector is integrated in the cover, one of the high-voltage connectors is connected to the positive pole of the battery module, and the other high-voltage connector is connected to the negative pole of the battery module to output electrical energy to the outside. The information component is used to collect and display the voltage information and temperature information of the battery module to observe the status of the power supply component in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a startup battery provided by an embodiment of the present utility model;

[0023] Figure 2 This is an exploded view of a startup battery provided by an embodiment of the utility model.

[0024] In the picture:

[0025] 11. Cover; 111. First folded edge; 12. Shell; 121. Second folded edge; 13. Sealing gasket; 14. Bolt; 21. Battery module; 22. High-voltage connector; 23. Cable; 24. Bus; 3. Protective cover; 41. Collection harness; 42. Control panel; 43. Display; 44. Low-voltage connector; 5. Explosion-proof valve; 6. One-button start / stop button. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0027] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0030] This embodiment provides a start-up battery with a simple structure, complete functions, and easy maintenance, which can simultaneously meet the needs of frequent start-stop and long battery life.

[0031] See also Figure 1 and Figure 2 A starting battery includes a battery box, a power supply component and an information component, wherein the power supply component includes a battery module 21 and two high-voltage connectors 22. The battery module 21 is arranged in the battery box. The two high-voltage connectors 22 are respectively used to lead out the positive and negative poles of the battery module 21 to output electrical energy to the outside. The information component is connected to the power supply component to observe the status of the power supply component in real time.

[0032] In this embodiment, the rated voltage of the battery module 21 is set to be not less than 24.8V, and the charge is not less than 4.836kWh, to ensure that the continuous charge and discharge current can reach 325A, and the instantaneous charge and discharge current can reach 1950A, thereby meeting the long-life use requirements of the parking battery and the instantaneous high current use requirements of the start-stop battery.

[0033] Specifically, see Figure 2The battery box includes a cover 11 and a shell 12. The cover 11 and the shell 12 cooperate with each other to form a accommodating space for the battery module 21. Preferably, the cover 11 and the shell 12 are both formed by bending and welding sheet metal materials. Further preferably, the bottom of the cover 11 is provided with an installation and fixing point for the battery module 21. Adaptively, the top of the shell 12 is also provided with an installation and fixing point for the battery module 21. The bottom of the battery module 21 corresponds to the installation and fixing point at the top of the shell 12, and the top of the battery module 21 corresponds to the installation and fixing point at the bottom of the cover 11. The installation position of the battery module 21 is fixed to improve the installation stability of the battery module 21 and prevent shaking.

[0034] Further, see Figure 2 The cover body 11 is provided with a first folded edge 111 on the circumference of the open end, and the first folded edge 111 extends outward. The shell 12 is provided with a second folded edge 121 on the circumference of the open end, and the second folded edge 121 extends outward. The cover body 11 and the shell 12 are connected by bolts 14, which has the characteristics of simple structure, high structural strength and easy processing and manufacturing. Specifically, the first folded edge 111 and the second folded edge 121 are each provided with a plurality of mounting holes at intervals in the circumference. The bolts 14 pass through the corresponding mounting holes of the first folded edge 111 and the mounting holes of the second folded edge 121 in turn and are fixed. The connection strength is large and the structure is stable. Preferably, the bolts 14 are made of stainless steel with a three-in-one combination bolt 14 with a hexagonal cylindrical head.

[0035] Preferably, a sealing gasket 13 is sandwiched between the first folded edge 111 and the second folded edge 121 for sealing protection. The top of the sealing gasket 13 circumferentially abuts the first folded edge 111, and the bottom of the sealing gasket 13 circumferentially abuts the second folded edge 121. Multiple bolts 14 are sequentially passed through the first folded edge 111, the sealing gasket 13, and the second folded edge 121 to secure them. For example, the sealing gasket 13 in this embodiment is made of foamed silicone, with a sealing protection level of up to IP67, and has the characteristics of strong sealing performance, simple production, and low cost.

[0036] See also Figure 1 and Figure 2 The power supply assembly includes a battery module 21, two high-voltage connectors 22, and two cables 23. The battery module 21 is arranged in the accommodation space and fixed to the installation position formed by the installation fixing points on the top of the shell 12 and the bottom of the cover 11. The high-voltage connector 22 is integrated into the cover 11. One cable 23 is connected to the positive pole of the battery module 21 and connected to one of the high-voltage connectors 22. The other cable 23 is connected to the negative pole of the battery module 21 and connected to the other high-voltage connector 22. The external device is connected to the two high-voltage connectors 22 to realize the power output of the battery module 21. Preferably, the material of the cable 23 is copper.

[0037] Further preferably, the cover body 11 is provided with two high-voltage installation grooves at intervals, and the two high-voltage connectors 22 are respectively sealed and installed in the two high-voltage installation grooves, which has a compact structure, a high degree of integration, and is easy to realize automated installation.

[0038] It should be noted that the battery module 21 provided in this embodiment includes two battery packs, each of which includes a number of single cells. Preferably, the single cells are sodium ion cells with a capacity of 65Ah, which have high power and energy and are capable of continuous 5C charge and discharge and instantaneous 10C charge and discharge. Further preferably, each battery pack in this embodiment includes 12 sodium ion cells, and the 12 sodium ion cells in each battery pack are in a 3-parallel 4-series structure. The two battery packs are connected in series, and the overall structure is 3-parallel 8-series. Through the above settings, the rated voltage of the battery module 21 is 24.8V, the charge capacity reaches 4.836kWh, the continuous charge and discharge current can reach 325A, and the instantaneous charge and discharge current can reach 1950A, thereby being able to simultaneously meet the long-term use requirements of the parking battery and the instantaneous high current use requirements of the start-stop battery.

[0039] Optionally, two adjacent sodium ion battery cells in each battery pack are bonded together, and end plates are provided at opposite ends of the battery pack. The sodium ion battery cells close to the end plates are fixed to the adjacent end plates by being tied with steel strips, thereby forming each battery pack into a whole, maintaining a compact structure, and meeting integration requirements.

[0040] Furthermore, the startup battery provided in this embodiment also includes a protective cover 3, which is disposed in the accommodation space. Specifically, the protective cover 3 is located between the battery module 21 and the cover 11, and can cover the battery module 21 to provide insulation protection for the battery module 21 and prevent creepage. Optionally, the protective cover 3 is made of PC material, which has excellent insulation effect and is easy to manufacture.

[0041] The information component in this embodiment is used to collect and display the voltage information and temperature information of the battery module 21, so as to facilitate real-time inspection of the battery status.

[0042] Prior to this, it should be noted that the power supply assembly also includes a bus 24, which is used to electrically connect the sodium ion cells and connect the two battery packs in series. Specifically, the bus 24 includes a first guide bar and a second guide bar. The first guide bar is electrically connected to the 12 sodium ion cells in one of the battery packs to achieve the series-parallel connection of the 12 sodium ion cells in one of the battery packs. The second guide bar is electrically connected to the 12 sodium ion cells in the other battery pack to achieve the series-parallel connection of the 12 sodium ion cells in the other battery pack. The negative pole of the first guide bar is electrically connected to the positive pole of the second guide bar, thereby connecting the two battery packs in series.

[0043] Optionally, the first and second current guide bars are both long aluminum bars made of AL1060 aluminum. Further, the first and second current guide bars are welded to the tabs of the sodium-ion battery cell to prevent them from falling off, thereby improving the stability of the electrical connection.

[0044] Further, see Figure 2 The information assembly includes a data collection harness 41 and a control board 42. Both are located in the storage space. Multiple fixed positions are provided at intervals on the first and second guide bars, each corresponding to a sodium-ion battery cell. One end of the data collection harness 41 is simultaneously connected to the multiple fixed positions, and the other end is connected to the control board 42. The data collection harness 41 collects voltage and temperature information from the sodium-ion battery cells and transmits the collected information to the control board 42. Preferably, the data collection harness 41 can also collect current and power information from the sodium-ion battery cells.

[0045] Furthermore, the information component also includes a display screen 43, and the control board 42 is connected to the display screen 43. After receiving the information from the acquisition harness 41, the control board 42 converts it into a signal and transmits it to the display screen 43, so that the voltage, current, power, and temperature information of the sodium ion battery cell can be directly monitored on the display screen 43, so as to monitor the working status and fault information of the battery module 21 in real time.

[0046] Optionally, the cover 11 is provided with a display slot, and the display screen 43 is sealed and installed in the display slot, which has a compact structure, a high degree of integration, and is easy to realize automated installation.

[0047] Furthermore, the information component also includes a low-voltage connector 44, which is connected to the control board 42 as an interface for external communication. Specifically, the control board 42 can convert the information received from the acquisition harness 41 into a signal and transmit it to the low-voltage controller, and further transmit it to the external device through the low-voltage controller.

[0048] Optionally, the cover body 11 is provided with a low-voltage installation groove, and the low-voltage connector 44 is sealed and installed in the low-voltage installation groove, which has a compact structure, a high degree of integration, and is easy to realize automated installation.

[0049] Preferably, an explosion-proof valve 5 is sealed and installed on the cover body 11, which can balance the internal and external pressures of the battery box when the start-up battery is working normally. Once an abnormality occurs in the battery module 21 and the air pressure in the battery box is too high, the pressure relief function is activated when the set threshold is reached to prevent the battery box from exploding.

[0050] Further preferably, this embodiment also integrates a one-button start-stop button 6 on the cover body 11, and the one-button start-stop button 6 is connected to the main control of the battery module 21. When the battery module 21 is abnormal, pressing the one-button start-stop button 6 can turn off the power supply to facilitate maintenance.

[0051] A parking battery provided in this embodiment has the characteristics of a rated voltage of 24.8V and a charge capacity of 4.836kWh by setting up two battery packs and multiple sodium ion battery cells in series and parallel. The continuous charging and discharging current can reach 325A, and the instantaneous charging and discharging current can reach 1950A. It can simultaneously meet the long-life use requirements of the parking battery and the instantaneous high-current use requirements of the start-stop battery. In addition, it can also monitor the voltage, current, charge, and temperature information of the sodium ion battery cells, and inspect the working status and fault information of the battery module 21 in real time, and set a one-button start-stop button 6. When the battery module 21 is abnormal, pressing the one-button start-stop button 6 can turn off the power to facilitate maintenance.

[0052] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A startup battery, characterized in that: include: A battery box, comprising a cover (11) and a shell (12), wherein the shell (12) and the cover (11) cooperate to form a receiving space; A power supply component, the power supply component comprising a battery module (21) and two high-voltage connectors (22), the battery module (21) being arranged in the accommodation space, the rated voltage of the battery module (21) being not less than 24.8V, and the charge capacity being not less than 4.836kWh, the high-voltage connectors (22) being integrated into the cover (11), one of the high-voltage connectors (22) being connected to the positive electrode of the battery module (21), and the other high-voltage connector (22) being connected to the negative electrode of the battery module (21); An information component is used to collect and display voltage information and temperature information of the battery module (21).

2. A startup battery according to claim 1, characterized in that: The battery module (21) includes two battery packs connected in series, and the battery pack includes a plurality of sodium ion battery cells with a capacity of 65Ah.

3. A startup battery according to claim 2, characterized in that: The battery pack includes two end plates. Two adjacent sodium ion batteries in the battery pack are bonded together, and the sodium ion batteries close to the end plates are bundled and fixed to the adjacent end plates.

4. A startup battery according to claim 1, characterized in that: The power supply assembly further includes two cables (23), one of the cables (23) being connected to the positive pole of the battery module (21) and connected to one of the high-voltage connectors (22), and the other cable (23) being connected to the negative pole of the battery module (21) and connected to the other high-voltage connector (22).

5. A startup battery according to claim 2, characterized in that: The power supply component further includes a bus bar (24), the bus bar (24) including a first guide bar and a second guide bar, the first guide bar being electrically connected to a plurality of the sodium ion cells in one of the battery packs, the second guide bar being electrically connected to a plurality of the sodium ion cells in another of the battery packs, and the negative electrode of the first guide bar being electrically connected to the positive electrode of the second guide bar.

6. A startup battery according to claim 5, characterized in that: The information component comprises a collection harness (41), a control panel (42) and a display screen (43); the collection harness (41) and the control panel (42) are both arranged in the accommodation space; the cover (11) is provided with a display slot; the display screen (43) is sealed and installed in the display slot; one end of the collection harness (41) is connected to a plurality of fixed positions of the first guide bar and the second guide bar, and the other end is connected to the control panel (42); the fixed positions correspond to the sodium ion batteries one by one; and the control panel (42) is connected to the display screen (43).

7. A startup battery according to claim 6, characterized in that: The information component further includes a low-voltage connector (44), the cover (11) is provided with a low-voltage installation groove, the low-voltage connector (44) is sealed and installed in the low-voltage installation groove, and the low-voltage connector (44) is connected to the control board (42).

8. A startup battery according to any one of claims 1 to 7, characterized in that: It also includes a protective cover (3), which is arranged in the accommodating space and located between the battery module (21) and the cover body (11), and the protective cover (3) covers the battery module (21).

9. A startup battery according to any one of claims 1 to 7, characterized in that: The opening end of the cover body (11) is circumferentially provided with a first folded edge (111), and the opening end of the shell body (12) is circumferentially provided with a second folded edge (121). A sealing gasket (13) is sandwiched between the first folded edge (111) and the second folded edge (121). The top of the sealing gasket (13) circumferentially abuts the first folded edge (111), and the bottom of the sealing gasket (13) circumferentially abuts the second folded edge (121). A plurality of bolts (14) pass through the first folded edge (111), the sealing gasket (13) and the second folded edge (121) in sequence and are fixed.

10. A startup battery according to any one of claims 1 to 7, characterized in that: A one-button start / stop button (6) is sealed and mounted on the cover (11), the one-button start / stop button (6) is connected to the main control of the battery module (21), and the one-button start / stop button (6) is configured to control the discharge of the battery module (21).

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