A car refrigerator battery

Abstract

The utility model discloses a refrigerator battery, and specifically relates to a vehicle refrigerator battery. It comprises a lower shell, a battery holder is arranged in the lower shell, a plurality of 18650 batteries are arranged in the battery holder, an upper shell is arranged on the lower shell, a main control board is arranged on the battery holder, a contact hardware plug is arranged on the main control board, a charging seat is arranged on one side of the lower shell, the plurality of 18650 batteries are connected in series in groups of two and then in parallel, the plurality of 18650 batteries are electrically connected to the main control board to protect the plurality of 18650 batteries, the main control board is electrically connected to the charging seat to control the charging seat to charge, and the contact hardware plug is in contact with the upper shell. The charging seat can realize real-time display of the charging process through a PCB board, a control panel and a power display label, and can also display the power by pressing a lock button when in use, and the 18650 battery is convenient to disassemble and assemble when it needs to be replaced when it is installed on the battery holder.

Description

Technical Field

[0001] The utility model relates to the field of refrigerator batteries, in particular to a vehicle-mounted refrigerator battery. Background Art

[0002] With the popularity of cars and drivers' pursuit of travel comfort, car refrigerators have gradually entered people's lives. Today's car refrigerators have a single function, and the power supply of the car refrigerator is generally not removable. It is inconvenient to charge online. The existing removable power supply contains multiple battery packs. During the use of the power supply, the power protection is multi-cell power protection. When charging, some battery packs are fully charged, and some battery packs are not fully charged. The battery packs that are not fully charged with multi-cell protection need to continue to be charged, and the fully charged battery packs also continue to be charged, which will cause overcharging, not only There is a safety hazard but also a waste of electricity. In addition, all battery packs are discharged in turn during the discharge process, which can easily cause current loss during transmission. Summary of the invention

[0003] The utility model aims to provide a vehicle refrigerator battery, which solves the problem that the existing mobile power source includes multiple battery packs. During the use of the power source, the power protection is multi-cell power protection. When charging, some battery packs are fully charged, and some battery packs are not fully charged. The battery packs that are not fully charged with the multi-cell protection need to continue to be charged, and the fully charged battery packs also continue to be charged. This will cause overcharging, which not only poses a safety hazard but also wastes electricity. In addition, during the discharge process, all battery packs are discharged in turn, which easily leads to the problem of current loss during transmission.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A vehicle refrigerator battery is provided, comprising a lower shell, a battery holder is arranged in the lower shell, a plurality of 18650 batteries are arranged in the battery holder, an upper shell is arranged on the lower shell, a main control board is arranged on the battery holder, a contact hardware plug is arranged on the main control board, a charging seat is arranged on one side of the lower shell, the plurality of 18650 batteries are connected in series in groups of two and then in parallel, the plurality of 18650 batteries are electrically connected to the main control board to protect the plurality of 18650 batteries, the main control board is electrically connected to the charging seat to control the charging seat to charge, and the contact hardware plug abuts against the upper shell.

[0006] As a preferred solution for a car refrigerator battery, the charging seat includes a PCB board, a key panel is provided on the PCB board, a power display label is provided on the key panel, the PCB board is electrically connected to the key panel through the power display label to display the power, and the key panel is electrically connected to the main control board to control the PCB board.

[0007] As a preferred solution for a car refrigerator battery, a lock button is provided on one side of the upper shell, a trigger button is provided on the battery bracket at a position corresponding to the lock button, a spring is sleeved on the trigger button, the spring abuts against the lock button, and the trigger button is electrically connected to the main control board to control the PCB board to display the power level.

[0008] As a preferred solution for a car refrigerator battery, the battery holder, the 18650 battery, the main control board and the contact hardware plug are all arranged between the lower shell and the upper shell, and a plurality of reinforcing ribs are arranged on the lower shell to guide one side of the battery holder to facilitate the installation of the battery holder and reinforce the lower shell.

[0009] As a preferred solution for a vehicle refrigerator battery, a plurality of reinforcing ribs are arranged in the upper shell to guide the other side of the battery bracket, so as to facilitate fixing the battery bracket and reinforcing the upper shell.

[0010] Beneficial effects of the utility model:

[0011] During the use of the power supply, multiple 18650 batteries are connected in series in groups of two and then in parallel to the main control board. The BMS in the SRIC integrated chip installed on the main control board automatically monitors and protects the 18650 batteries on the battery holder to prevent overcharging and sequential discharge and power loss.

[0012] The charging station can display the charging process in real time through the PCB board, control panel and power display label. When in use, the power can also be displayed by pressing the lock button. The 18650 battery installed on the battery rack is easy to disassemble and assemble when it needs to be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of a vehicle refrigerator battery according to an embodiment of the utility model.

[0015] Figure 2 It is a cross-sectional schematic diagram of a vehicle refrigerator battery according to an embodiment of the utility model.

[0016] In the figure:

[0017] 1. Lower shell; 2. Battery holder; 3. 18650 battery; 4. Upper shell; 5. Main control board; 6. Contact hardware plug; 7. Charging stand; 71. PCB board; 72. Key panel; 73. Power indicator label; 8. Lock button; 9. Spring. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0019] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0020] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0021] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1As shown, the utility model provides a technical solution: a car refrigerator battery, including a lower shell 1, a plurality of reinforcing ribs are arranged in the lower shell 1 to reinforce the lower shell 1, a battery holder 2 is slidably installed between the reinforcing ribs on the front and rear sides of the lower shell 1, and the reinforcing ribs at the bottom of the lower shell 1 support and place the battery holder 2 placed on the upper side for shaking, five 18650 batteries 3 are respectively installed on the upper and lower sides of the battery holder 2, a main control board 5 is installed on the top right side of the battery holder 2 by screws, a Saiwei integrated chip with a model of CW1233ALBS is installed on the top left side of the main control board 5, and a contact hardware plug is installed on the top right side of the main control board 5 6. A charging seat 7 is connected to the middle of the right top of the lower shell 1. The left side of the charging seat 7 is electrically connected to the main control board 5. The 18650 batteries 3 on the upper and lower sides of the battery holder 2 are connected in series. After the five groups of 18650 batteries 3 are connected in series, they are electrically connected in parallel to the main control board 5. The ten 18650 batteries 3 on the battery holder 2 are automatically monitored and protected by the BMS in the Saiwei integrated chip installed on the main control board 5 to prevent overcharging and sequential discharge power loss. After a single 18650 battery 3 is charged, the main control board 5 controls to disconnect it from the power supply and switch to the next 18650 battery 3. The upper right side of the upper top of the upper shell 4 is opened at the position corresponding to the contact hardware plug 6 There are five through holes, and the top of the contact hardware plug 6 abuts against the five through holes on the right side of the top of the upper shell 4. A number of reinforcing ribs are arranged at the bottom of the upper shell 4 to reinforce the upper shell 4. The top of the battery holder 2 is fixed by the several reinforcing ribs in the bottom of the upper shell 4 to prevent the battery holder 2 from shaking in the shell. Threaded holes for installing screws are opened on the four corners of the bottom of the lower shell 1, and four threaded holes are opened at the corresponding positions of the through holes on the four corners of the bottom of the upper shell 4 and the lower shell 1. When in use, the battery holder 2 is placed in the lower shell 1 through the reinforcing ribs on the front and back sides of the lower shell 1, and the main control board 5 is fixed on the battery holder 2. The 18650 battery on the upper and lower sides of the battery holder 2 The five groups of 18650 batteries 3 are connected in series and then electrically connected to the main control board 5 in parallel. The SRW integrated chip and the contact hardware plug 6 are installed on the main control board 5 in sequence. The charging seat 7 is snapped onto the right side of the lower shell 1. The charging seat 7 is electrically connected to the main control board 5. Finally, align the contact hardware plug 6 of the battery holder 2 with the reinforcing rib position at the bottom of the upper shell 4 and install the upper shell 4 on the lower shell 1. The upper shell 4 and the lower shell 1 are locked with four screws. When the circuit is connected for use, the BMS set in the SRW integrated chip on the main control board 5 can automatically monitor and protect the ten 18650 batteries 3 on the battery holder 2 to prevent overcharging and sequential discharge power loss.

[0023] like Figure 2As shown, the charging seat 7 includes a PCB board 71, a key panel 72 is installed on the right side of the PCB board 71, a power display label 73 is attached to the right side of the key panel 72, a lock button 8 is slidably arranged on the left side of the upper shell 4, and a trigger button is arranged at a position corresponding to the lock button 8 on the left side of the top of the battery holder 2, a circle of spring 9 is sleeved on the trigger button, the top of the spring 9 abuts against the bottom of the lock button 8, and the trigger button is electrically connected to the main control board 5 and the key panel 72; when charging, the light on the PCB board 71 lights up and displays the power in real time through the power display label 73. When the power needs to be observed, the lock button 8 presses down to compress the spring 9 at the bottom. During the compression of the spring 9, the lock button 8 presses the trigger button, and the trigger button receives the start command. After being processed by the main control board 5 and the key panel 72, the light on the PCB board 71 lights up and displays the power in real time through the power display label 73. When the lock button 8 is released, the spring 9 resets and drives the lock button 8 to return to the initial position.

[0024] Working principle: When in use, the battery holder 2 is placed in the lower shell 1 through the reinforcing ribs on the front and back sides of the lower shell 1, and the main control board 5 is fixed on the battery holder 2. The 18650 batteries 3 on the upper and lower sides of the battery holder 2 are connected in series. After the five groups of 18650 batteries 3 are connected in series, they are electrically connected in parallel to the main control board 5. The SRW integrated chip and the contact hardware plug 6 are installed on the main control board 5 in turn, and the charging seat 7 is snapped onto the right side of the lower shell 1. The trigger button is electrically connected to the main control board 5 and the key panel 72. Finally, align the battery holder 2 box contact hardware plug 6 with the reinforcing rib position at the bottom of the upper shell 4 and install the upper shell 4 on the lower shell 1. The upper shell 4 and the lower shell 1 are locked with four screws. When using, you only need to connect the line. The SRW integrated chip on the main control board 5 The BMS set in the chip can automatically monitor and protect the ten 18650 batteries 3 on the battery holder 2 respectively to prevent overcharging and sequential discharge power loss. After a single 18650 battery 3 is charged, the main control board 5 controls to disconnect it from the power supply and switch to the next 18650 battery 3. When it is necessary to observe the real-time power, the lock button 8 is pressed down to compress the spring 9 at the bottom. During the compression of the spring 9, the lock button 8 is pressed to the trigger button. The trigger button receives the start command. After being processed by the main control board 5 and the key panel 72, the light on the PCB board 71 lights up and displays the power in real time through the power display label 73. When the lock button 8 is released, the spring 9 resets and drives the lock button 8 to return to the initial position.

[0025] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A vehicle refrigerator battery, characterized in that: The invention comprises a lower shell (1), wherein a battery holder (2) is arranged in the lower shell (1), wherein a plurality of 18650 batteries (3) are arranged in the battery holder (2), an upper shell (4) is arranged on the lower shell (1), a main control board (5) is arranged on the battery holder (2), a contact hardware plug (6) is arranged on the main control board (5), a charging seat (7) is arranged on one side of the lower shell (1), the plurality of 18650 batteries (3) are connected in series in groups of two and then connected in parallel, the plurality of 18650 batteries (3) are electrically connected to the main control board (5) to protect the plurality of 18650 batteries (3), the main control board (5) is electrically connected to the charging seat (7) to control the charging seat (7) to charge, and the contact hardware plug (6) is in contact with the upper shell (4).

2. The vehicle refrigerator battery according to claim 1, characterized in that: The charging seat (7) comprises a PCB board (71), a key panel (72) is arranged on the PCB board (71), a power display label (73) is arranged on the key panel (72), the PCB board (71) is electrically connected to the key panel (72) via the power display label (73) to display the power, and the key panel (72) is electrically connected to the main control board (5) to control the PCB board (71).

3. The vehicle refrigerator battery according to claim 2, characterized in that: A lock button (8) is provided on one side of the upper shell (4); a trigger button is provided on the battery holder (2) at a position corresponding to the lock button (8); a spring (9) is sleeved on the trigger button; the spring (9) abuts against the lock button (8); and the trigger button is electrically connected to the main control board (5) to control the PCB board (71) to display the power level.

4. The vehicle refrigerator battery according to claim 1, characterized in that: The battery holder (2), the 18650 battery (3), the main control board (5) and the contact hardware plug (6) are all arranged between the lower shell (1) and the upper shell (4); a plurality of reinforcing ribs are arranged on the lower shell (1) to guide one side of the battery holder (2) to facilitate installation of the battery holder (2) and to reinforce the lower shell (1).

5. The vehicle refrigerator battery according to claim 4, characterized in that: A plurality of reinforcing ribs are arranged inside the upper shell (4) to guide the other side of the battery holder (2), thereby facilitating the fixing of the battery holder (2) and the reinforcement of the upper shell (4).

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